Raw material multi-stage screening and impurity removing device for low-temperature cold pressed oil

Abstract

The utility model discloses a raw material multi-stage screening and impurity removing device for low-temperature cold pressed oil, which belongs to the field of screening and impurity removing devices and comprises a box body, a feeding port is fixedly connected to the top surface of the box body, a discharging port is fixedly connected to the bottom surface of the box body, an impurity discharging port is fixedly connected to the left side wall of the box body, and a multi-stage screening and impurity removing mechanism is arranged in the box body. The multi-stage screening and impurity removing mechanism comprises a driving motor, a first rotating shaft, a first bevel gear, a second rotating shaft, a second bevel gear, a cam, a coarse screening net, a fine screening net, a fine screening net, fixing rods and a compression spring, and the first rotating shaft is movably connected between the symmetrical fixing plates on the right side wall of the box body through the first rotating rods at the upper end and the lower end; through the arrangement of the multi-stage screening and impurity removing mechanism, the purpose of effectively performing multi-stage screening and impurity removing on impurities with different sizes in the raw materials for the low-temperature cold-pressed oil can be achieved, so that the screening and impurity removing effect on the raw materials for the low-temperature cold-pressed oil is improved, and the post-production quality of the low-temperature cold-pressed oil is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of screening and impurity removing device, especially to a raw material multistage screening and impurity removing device for low-temperature cold pressed oil. BACKGROUND

[0002] Low-temperature cold pressed oil is a plant oil produced by low-temperature pressing process, that is, the oil in the oil material is directly squeezed by a huge physical and mechanical pressure in an environment below 60℃ without the process of high-temperature frying or steaming. This production method retains the natural aroma and nutritional ingredients of the raw material, such as vitamin E and sterol physiological active substances, and avoids the denaturation of proteins caused by high-temperature treatment and the damage to the aroma in the deodorization process of chemical refining. Therefore, low-temperature cold pressed oil is healthier and more natural than traditional hot-pressed oil, and is more suitable for direct consumption or cold dishes to retain its original flavor and nutritional value.

[0003] In the prior art, various impurities such as dust, sand, stones, metals, stems and leaves, skins, moldy particles, and pest-infested particles may be mixed into the low-temperature cold pressed oil raw material during harvesting, transportation, and storage. These impurities not only do not yield oil during oil extraction, but also absorb some oil residues in the cake, thereby reducing the oil yield and increasing the oil loss. Therefore, a screening and impurity removing device is needed, which can effectively remove these impurities and improve the oil yield and purity.

[0004] A Chinese utility model patent with the publication number "CN214515969U" and the patent name "A screening and impurity removing machine for sodium alginate processing" discloses a screening and impurity removing device. The patent discloses a technical solution including a box body, a filter plate rotatably connected to the inner side of the box body, a second spring fixedly connected to the inner side of the rotating shaft of the filter plate, a clamping column fixedly connected to one end of the limiting ring, a push plate fixedly connected to one end of the outer side of the limiting ring, a pulley rotatably connected to the inner side of the top end of the sliding plate, and a fourth spring fixedly connected to the bottom end of the supporting plate.

[0005] However, when the raw material is screened and impurities are removed by this technical solution, the screening and impurity removing structure is relatively simple, and the raw material can only be screened and impurities removed once, which makes it difficult to screen and remove impurities of different sizes in the raw material, thereby reducing the screening and impurity removing effect of the raw material and affecting the quality of the low-temperature cold pressed oil after production.

[0006] Therefore, to solve the above technical problems, the utility model provides a raw material multistage screening and impurity removing device for low-temperature cold pressed oil. UTILITY MODEL CONTENTS

[0007] The main purpose of the utility model is to provide a raw material multistage screening and impurity removing device for low-temperature cold pressed oil, which can effectively solve the problems in the background art.

[0008] To achieve the above object, the technical scheme adopted by the utility model is:

[0009] A low-temperature cold-pressed oil raw material multi-stage screening and impurity removing device, including the tank, the top surface of the tank is fixedly connected with the feed inlet, and the bottom surface of the tank is fixedly connected with the discharge port, the left side wall of the tank is fixedly connected with the impurity discharge port, the inside of the tank is equipped with a multi-stage screening and impurity removing mechanism, and the multi-stage screening and impurity removing mechanism includes a driving motor, a first rotating shaft, a first bevel gear, a second rotating shaft, a second bevel gear, a cam, a coarse screening net, a fine screening net, a fine screening net, a fixed rod and a compression spring, the first rotating shaft is movably connected between the fixed plates on the right side wall of the tank through the first rotating rods at the upper and lower ends, a plurality of first bevel gears are fixedly connected to the outer wall of the first rotating shaft, the output end of the driving motor is fixedly connected with the first rotating rod, the second rotating shaft is movably connected inside the tank through the second rotating rods at both ends, the second bevel gear is fixedly connected to one end of the second rotating rod and meshes with the first bevel gear, cams are fixedly connected to the outer wall of the second rotating shaft at both ends, the coarse screening net, the fine screening net and the fine screening net are movably connected inside the tank in the order from top to bottom through the sliding blocks at both sides, and the sliding blocks are movably connected with the fixed rods in the inner wall of the tank through the connecting holes in the top surface and are fixedly connected with the compression springs sleeved outside the fixed rods.

[0010] Further, a plurality of inclined guide plates are fixedly installed inside the tank below the feed inlet, and a bottom plate is fixedly installed on the right side of the bottom surface of the tank, a group of fixed plates symmetrically arranged in the vertical direction are fixedly installed on the right side wall of the feed inlet, and a first rotating hole is formed in the top surface of the fixed plate, three second rotating holes are formed in the vertical array on the left and right side walls of the tank, and three sliding grooves are formed in the vertical array on the four corner end portions of the inner wall of the tank.

[0011] Further, three air inlet pipes are fixedly installed on the right side wall of the tank in the vertical array, and a fan is fixedly installed on the outer side end of the air inlet pipe.

[0012] Further, first rotating rods are fixedly installed at the upper and lower ends of the first rotating shaft respectively, and the first rotating rods are movably installed in the first rotating hole, three first bevel gears are fixedly installed on the outer wall of the first rotating shaft in the vertical array, the driving motor is fixedly installed on the outer side wall of the bottom plate, and the output end of the driving motor is fixedly installed together with the first rotating rod at the lower end.

[0013] Further, the second rotating shaft is provided with three, and the left and right ends of the second rotating shaft are respectively fixedly installed with second rotating rods, the second rotating rods are movably installed in the second rotating holes, and the outer side end of the right end second rotating rod is fixedly installed with a second bevel gear, the second bevel gear and the first bevel gear are meshed together, and the outer walls of the left and right ends of the second rotating shaft are also respectively fixedly installed with cams.

[0014] Further, the fixed rod is fixedly installed in the inner part of the sliding groove, the compression spring is sleeved on the outer part of the fixed rod, the bottom end of the compression spring is fixedly installed in the inner bottom end of the sliding groove, the front and back two side walls of the coarse screening net, the fine screening net and the fine screening net are respectively fixedly installed with sliding blocks, the sliding blocks are movably installed in the sliding groove, the top surface of the sliding block is provided with a connecting hole, and the sliding block is movably installed with the fixed rod through the connecting hole and is fixedly installed at the top end of the compression spring.

[0015] Compared with the prior art, the multi-stage screening and impurity removing mechanism has the following beneficial effects:

[0016] In the utility model, the multi-stage screening and impurity removing mechanism is set, the low-temperature cold-pressed oil raw materials are put into the box through the feeding port, the raw materials are uniformly dispersed to the top surface of the coarse screening net through the guide plate in the box, the problem of raw material accumulation is avoided, at this time, the driving motor drives the output end to drive the first rotating shaft to rotate, the first rotating shaft drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate under the rotating meshing effect, the second bevel gear drives the second rotating shaft to rotate through the second rotating rod, the second rotating shaft drives the cam to rotate, the cam continuously pushes the coarse screening net, the fine screening net and the fine screening net to move upwards in the rotating process, the coarse screening net, the fine screening net and the fine screening net slide in the sliding groove along the fixed rod through the sliding block through the connecting hole, and the compression spring is forced to stretch, after the cam no longer presses and pushes the screening net, the screening net is reset downwards under the elastic recovery and shrinkage force of the compression spring, the coarse screening net, the fine screening net and the fine screening net continuously vibrate, and the coarse screening net, the fine screening net and the fine screening net can sequentially vibrate and screen and separate the larger, smaller and tiny impurities in the raw materials, the impurities are discharged through the impurity discharge port, the screened raw materials are discharged through the discharge port, simultaneously, the fan blows air into the box through the air inlet pipe, and the screening net vibrating screen blows the impurities with light quality into the fan, so that the purpose of air selection and impurity removal is further achieved, so that the purpose of effectively multi-stage screening and impurity removal of different size impurities in the low-temperature cold-pressed oil raw materials is achieved, thereby not only the screening and impurity removal effect of the low-temperature cold-pressed oil raw materials is improved, but also the quality of the low-temperature cold-pressed oil after production is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 It is the internal structure schematic view of the box of the utility model;

[0019] Figure 3 It is the sectional view schematic view of the box of the utility model;

[0020] Figure 4 It is the overall structure schematic view of the multi-stage screening and impurity removing mechanism of the utility model;

[0021] Figure 5 It is the overall structure schematic view of the coarse screening net of the utility model;

[0022] Figure 6 It is the overall structure schematic view of the utility model; Figure 4 It is the structure enlarged schematic view of A of the utility model.

[0023] In the drawing: 1, box; 2, feed inlet; 3, discharge port; 4, impurity discharge port; 5, multi-stage screening and impurity removing mechanism; 6, air inlet pipe; 7, fan; 8, guide plate; 9, bottom plate; 10, fixed plate; 11, first rotating hole; 12, second rotating hole; 13, chute; 14, driving motor; 15, first rotating shaft; 16, first rotating rod; 17, first bevel gear; 18, second rotating shaft; 19, second rotating rod; 20, second bevel gear; 21, cam; 22, coarse screening net; 23, fine screening net; 24, fine screening net; 25, sliding block; 26, connecting hole; 27, fixed rod; 28, compression spring. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor are within the protection scope of the utility model.

[0025] As Figure 1 - Figure 6As shown, a low-temperature cold-pressed oil raw material multi-stage screening and impurity removal device, including box 1, the top surface of box 1 is fixedly connected with the feed inlet 2, and the bottom surface of box 1 is fixedly connected with the discharge port 3, the left side wall of box 1 is fixedly connected with the impurity discharge port 4, the inside of box 1 is provided with a multi-stage screening and impurity removal mechanism 5, and the multi-stage screening and impurity removal mechanism 5 includes a drive motor 14, a first rotating shaft 15, a first bevel gear 17, a second rotating shaft 18, a second bevel gear 20, a cam 21, a coarse screening net 22, a fine screening net 23, a fine screening net 24, a fixed rod 27 and a compression spring 28, the first rotating shaft 15 is movably connected between the fixed plates 10 on the right side wall of the box 1 through the first rotating rods 16 at the upper and lower ends, and a plurality of first bevel gears 17 are fixedly connected to the outer wall of the first rotating shaft 15, the output end of the drive motor 14 is fixedly connected with the first rotating rod 16, the second rotating shaft 18 is movably connected inside the box 1 through the second rotating rods 19 at both ends, and the second bevel gear 20 is fixedly connected to one end of the second rotating rod 19 and engaged with the first bevel gear 17, the outer wall of the second rotating shaft 18 is fixedly connected with the cams 21 at both ends, the coarse screening net 22, the fine screening net 23 and the fine screening net 24 are movably connected inside the box 1 in the order from top to bottom through the sliding blocks 25 at both sides, and the sliding blocks 25 are movably connected with the fixed rods 27 in the inner wall of the box 1 through the connecting holes 26 in the top surface and fixedly connected with the compression springs 28 externally sleeved with the fixed rods 27.

[0026] As shown, Figure 3 The inside of the box 1 and below the feed inlet 2 are fixedly installed with a plurality of inclined guide plates 8, which can uniformly disperse the raw materials into the box 1 for screening and impurity removal, preventing the accumulation of raw materials, and the bottom surface of the box 1 is fixedly installed with a bottom plate 9, which is used to cooperate with the installation of the drive motor 14, a group of upper and lower symmetrical fixed plates 10 are fixedly installed on the right side wall of the feed inlet 2, and the top surface of the fixed plate 10 is provided with a first rotating hole 11, the first rotating hole 11 in the top surface of the fixed plate 10 is used to cooperate with the first rotating rod 16 to realize the rotating operation, three second rotating holes 12 are respectively provided in the vertical array on the left and right side walls of the box 1, the second rotating hole 12 is used to cooperate with the second rotating rod 19 to realize the rotating operation, and three sliding grooves 13 are respectively provided in the vertical array at the four corner ends of the inner wall of the box 1, the sliding groove 13 is used to cooperate with the sliding block 25 to realize the sliding operation;

[0027] As shown, Figure 2 Three air inlet pipes 6 are fixedly installed on the right side wall of the box 1 in a vertical array, and a fan 7 is fixedly installed on the outer side end of the air inlet pipe 6, the fan 7 can blow air into the inside of the box 1 through the air inlet pipe 6, the blowing air can blow the lighter impurities shaken by the screening net to the inside of the left fan 7, so as to achieve the purpose of air separation and impurity removal for the impurities in the raw materials;

[0028] AsFigure 4 and Figure 5 As shown in the first rotating shaft 15, the upper and lower ends are fixedly installed with the first rotating rod 16, and the first rotating rod 16 is movably installed in the first rotating hole 11. Three first bevel gears 17 are fixedly installed on the outer wall of the first rotating shaft 15 in a vertical array. The driving motor 14 is fixedly installed on the outer side wall of the bottom plate 9, and the output end of the driving motor 14 is fixedly installed with the lower end of the first rotating rod 16. The driving motor 14 is driven to rotate the first rotating shaft 15 through the first rotating rod 16, and the first rotating shaft 15 drives the first bevel gear 17 to rotate to provide driving force for the multi-stage screening and impurity removing mechanism 5.

[0029] As shown in the first rotating shaft 15, the upper and lower ends are fixedly installed with the first rotating rod 16, and the first rotating rod 16 is movably installed in the first rotating hole 11. Three first bevel gears 17 are fixedly installed on the outer wall of the first rotating shaft 15 in a vertical array. The driving motor 14 is fixedly installed on the outer side wall of the bottom plate 9, and the output end of the driving motor 14 is fixedly installed with the lower end of the first rotating rod 16. The driving motor 14 is driven to rotate the first rotating shaft 15 through the first rotating rod 16, and the first rotating shaft 15 drives the first bevel gear 17 to rotate to provide driving force for the multi-stage screening and impurity removing mechanism 5. Figure 4 、 Figure 5 and Figure 6 As shown in the second rotating shaft 18, three second rotating shafts 18 are provided, and the left and right ends of the second rotating shaft 18 are fixedly installed with the second rotating rod 19. The second rotating rod 19 is movably installed in the second rotating hole 12, and the outer side end of the right end second rotating rod 19 is fixedly installed with the second bevel gear 20. The second bevel gear 20 is engaged with the first bevel gear 17. The left and right ends of the outer wall of the second rotating shaft 18 are also fixedly installed with the cam 21. The second bevel gear 20 is driven to rotate by the rotating engagement of the first bevel gear 17. The second bevel gear 20 drives the second rotating shaft 18 to rotate through the second rotating rod 19, so that the second rotating shaft 18 drives the cam 21 to rotate, and the coarse screening net 22, the fine screening net 23 and the fine screening net 24 are vibrated.

[0030] As shown in the first rotating shaft 15, the upper and lower ends are fixedly installed with the first rotating rod 16, and the first rotating rod 16 is movably installed in the first rotating hole 11. Three first bevel gears 17 are fixedly installed on the outer wall of the first rotating shaft 15 in a vertical array. The driving motor 14 is fixedly installed on the outer side wall of the bottom plate 9, and the output end of the driving motor 14 is fixedly installed with the lower end of the first rotating rod 16. The driving motor 14 is driven to rotate the first rotating shaft 15 through the first rotating rod 16, and the first rotating shaft 15 drives the first bevel gear 17 to rotate to provide driving force for the multi-stage screening and impurity removing mechanism 5. Figure 4 、 Figure 5 and Figure 6As shown, the fixed rod 27 is fixedly installed inside the sliding groove 13, and the compression spring 28 is sleeved outside the fixed rod 27, the bottom end of the compression spring 28 is fixedly installed at the bottom end inside the sliding groove 13, the front and rear sidewalls of the coarse screening net 22, the fine screening net 23 and the fine screening net 24 are respectively fixedly installed with the sliding block 25, and the sliding block 25 is movably installed in the sliding groove 13, the top surface of the sliding block 25 is provided with the connecting hole 26, and the sliding block 25 is movably installed with the fixed rod 27 through the connecting hole 26 and is fixedly installed at the top end of the compression spring 28, when the coarse screening net 22, the fine screening net 23 and the fine screening net 24 are respectively extruded to move upward under the rotation of the cam 21 at the bottom surface of both sides, the sliding block 25 will slide along the fixed rod 27 in the sliding groove 13 through the connecting hole 26 on the top surface, and force the compression spring 28 to stretch, and after the cam 21 no longer extrudes the screening net, under the restoring shrinkage force of the compression spring 28, the screening net will move downward to reset, so that the screening net can achieve the purpose of vibrating screening of the raw materials, and the larger, smaller and tiny impurities in the raw materials can be sequentially vibrated and screened out through the coarse screening net 22, the fine screening net 23 and the fine screening net 24, so as to achieve the purpose of multi-stage screening and impurity removal of the raw materials.

[0031] The specific principle of realizing multi-stage screening and impurity removal of the raw materials for low-temperature cold-pressed oil by the multi-stage screening and impurity removal mechanism 5 is as follows:

[0032] After the low-temperature cold-pressed oil raw materials are put into the inside of the box 1 through the feed inlet 2, under the action of the guide plates 8 in the feed inlet 2, the raw materials can be dispersed in the box 1, so that the raw materials are dispersed and fall into the top surface of the uppermost coarse screening net 22 in the box 1, so as to avoid the problem of accumulation of the raw materials. At this time, the driving motor 14 installed on the side wall of the bottom plate 9 drives the first rotating shaft 15 to rotate in the first rotating hole 11 opened in the top surface of the upper and lower symmetrical fixed plates 10 installed on the right side wall of the feed inlet 2. The first rotating shaft 15 drives the first rotating rod 16 installed at the upper and lower ends of the first rotating shaft 15 to rotate in the first rotating hole 11, so that the first rotating shaft 15 drives the first bevel gear 17 installed on the outer wall to rotate. Since the first bevel gear 17 is engaged with the second bevel gear 20 on the right side wall of the box 1, the first bevel gear 17 drives the second bevel gear 20 to rotate synchronously. The second bevel gear 20 drives the second rotating rod 19 at the two ends of the second rotating shaft 18 to rotate in the second rotating hole 12 opened in the two side walls of the box 1. The second rotating rod 19 drives the second rotating shaft 18 to rotate. During the rotation of the second rotating shaft 18, the cams 21 installed at the two ends of the outer wall rotate. During the rotation of the cams 21, the coarse screening net 22, the fine screening net 23 and the fine screening net 24 are squeezed and pushed upwards. When the coarse screening net 22, the fine screening net 23 and the fine screening net 24 move upwards, the sliding blocks 25 installed on the two side walls of the coarse screening net 22, the fine screening net 23 and the fine screening net 24 slide in the corresponding sliding grooves 13 in the inner wall of the box 1 through the connecting holes 26 opened in the top surface along the fixed rods 27. The sliding blocks 25 drive the compression springs 28 sleeved outside the fixed rods 27 to stretch. When the cams 21 no longer squeeze and push the screening nets during the rotation of the cams 21, the screening nets move downwards under the elastic restoring force of the compression springs 28. In this way, the coarse screening net 22, the fine screening net 23 and the fine screening net 24 can continuously move up and down and vibrate when the cams 21 continuously rotate. When the raw materials fall into the coarse screening net 22, the coarse screening net 22 can vibrate and screen the larger impurities in the raw materials. After the raw materials pass through the coarse screening net 22, the raw materials fall downwards and successively pass through the fine screening net 23 and the fine screening net 24. The fine screening net 23 and the fine screening net 24 can vibrate and screen the smaller and tiny impurities in the raw materials. Finally, the raw materials screened and impurities removed by the coarse screening net 22, the fine screening net 23 and the fine screening net 24 are discharged through the discharge port 3. At the same time, the impurities filtered on the top surface of the screening net enter the impurity discharge port 4 and are discharged under vibration. The fan 7 blows air from the right side to the left side in the box 1 through the air inlet pipe 6. The straight blowing air can blow the lighter impurities in the vibrating screen into the fan 7, so as to further screen and remove the impurities from the raw materials, thereby achieving the purpose of effectively multi-stage screening and removing impurities of different sizes in the low-temperature cold-pressed oil raw materials, and further improving the screening and removing impurities effect of the low-temperature cold-pressed oil raw materials.And improve the low temperature cold press oil production quality.

[0033] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage screening and impurity removal device for raw materials used in low-temperature cold pressing oil, comprising a housing (1), wherein a feed inlet (2) is fixedly connected to the top surface of the housing (1), and a discharge outlet (3) is fixedly connected to the bottom surface of the housing (1), and an impurity discharge outlet (4) is fixedly connected to the left side wall of the housing (1), characterized in that: The inside of the box (1) is provided with a multi-stage screening and impurity removing mechanism (5), and the multi-stage screening and impurity removing mechanism (5) comprises a driving motor (14), a first rotating shaft (15), a first bevel gear (17), a second rotating shaft (18), a second bevel gear (20), a cam (21), a coarse screening net (22), a fine screening net (23), a fine screening net (24), a fixed rod (27) and a compression spring (28), the first rotating shaft (15) is movably connected between the symmetrical fixed plates (10) on the right side wall of the box (1) through the first rotating rods (16) at the upper and lower ends, and a plurality of first bevel gears (17) are fixedly connected to the outer wall of the first rotating shaft (15), the output end of the driving motor (14) is fixedly connected with the first rotating rod (16), the second rotating shaft (18) is movably connected inside the box (1) through the second rotating rods (19) at both ends, and the second bevel gear (20) is fixedly connected to one end of the second rotating rod (19) and meshes with the first bevel gear (17), the outer wall of the second rotating shaft (18) is fixedly connected with the cams (21) at both ends, the coarse screening net (22), the fine screening net (23) and the fine screening net (24) are movably connected inside the box (1) in the order from top to bottom through the sliding blocks (25) at both sides, and the sliding blocks (25) are movably connected with the fixed rods (27) in the inner wall of the box (1) through the connecting holes (26) in the top surface and are fixedly connected with the compression springs (28) sleeved outside the fixed rods (27).

2. The multi-stage screening and impurity removal device for low-temperature cold-pressed oil raw materials according to claim 1, characterized in that: A plurality of inclined guide plates (8) are fixedly installed inside the box (1) and below the feed inlet (2), and a bottom plate (9) is fixedly installed on the right side of the bottom surface of the box (1), a group of symmetrical fixed plates (10) are fixedly installed on the right side wall of the feed inlet (2), and a first rotating hole (11) is formed in the top surface of the fixed plate (10), three second rotating holes (12) are formed in the left and right side walls of the box (1) in a vertical array, and three sliding grooves (13) are formed in the four corner end portions of the inner wall of the box (1) in a vertical array.

3. The multi-stage screening and impurity removing device for low-temperature cold-pressed oil raw materials according to claim 2, characterized in that: Three air inlet pipes (6) are fixedly installed on the right side wall of the box (1) in a vertical array, and a fan (7) is fixedly installed on the outer side end of the air inlet pipe (6).

4. The multi-stage screening and impurity removing device for low-temperature cold-pressed oil raw materials according to claim 3, characterized in that: First rotating rods (16) are fixedly installed at the upper and lower ends of the first rotating shaft (15), and the first rotating rods (16) are movably installed in the first rotating holes (11), three first bevel gears (17) are fixedly installed on the outer wall of the first rotating shaft (15) in a vertical array, the driving motor (14) is fixedly installed on the outer side wall of the bottom plate (9), and the output end of the driving motor (14) is fixedly installed together with the first rotating rod (16) at the lower end.

5. A multi-stage impurity removal device for low-temperature cold-pressed oil raw materials according to claim 4, characterized in that: The second rotating shaft (18) is provided with three, and the left and right ends of the second rotating shaft (18) are respectively fixedly installed with second rotating rods (19), the second rotating rods (19) are movably installed in the second rotating holes (12), and the outer side end of the right end second rotating rod (19) is fixedly installed with a second bevel gear (20), the second bevel gear (20) and the first bevel gear (17) are meshed together, and the outer walls of the left and right ends of the second rotating shaft (18) are also respectively fixedly installed with cams (21).

6. A multi-stage impurity removal device for low-temperature cold-pressed oil raw materials according to claim 5, characterized in that: The fixed rod (27) is fixedly installed in the inside of the sliding groove (13), the compression spring (28) is sleeved on the outside of the fixed rod (27), the bottom end of the compression spring (28) is fixedly installed in the inside bottom end of the sliding groove (13), the front and back two side walls of the coarse screening net (22), the fine screening net (23) and the fine screening net (24) are respectively fixedly installed with sliding blocks (25), and the sliding blocks (25) are movably installed in the sliding groove (13), the top surface of the sliding block (25) is provided with a connecting hole (26), and the sliding block (25) is movably installed with the fixed rod (27) through the connecting hole (26) and is fixedly installed at the top end of the compression spring (28).

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