Filtering mechanism of grease squeezer

Abstract

The invention relates to the technical field of grease squeezing and filtering, in particular to a grease squeezer filtering mechanism which comprises a squeezing cage, the squeezing cage is of a combined type detachable structure, and a cleaning component used for conducting partition online cleaning on sieve holes with different hole diameters in the squeezing cage is arranged above the squeezing cage. A rotating part for driving the pressing cage to intermittently rotate is arranged on the left side of the pressing cage. According to the invention, the cleaning component is adopted to carry out on-line partitioned cleaning on the pressing cage, proper cleaning pressure can be selected according to the actual aperture of the sieve pores, the damage to the pressing cage structure caused by overlarge pressure or the influence on the cleaning effect caused by oversmall pressure are avoided, and dynamic pressure matching is carried out by combining partitioned customized pressure with an air blowing / spraying double-cleaning mode, so that the cleaning efficiency is improved. And meanwhile, the pressing cage is of a combined type detachable structure, and the maintenance cost is reduced through modular replacement and a rapid sealing mechanism.

Description

Technical Field

[0001] This invention relates to the field of oil pressing and filtration technology, and in particular to a filtration mechanism for an oil press. Background Technology

[0002] As byproducts of meat processing, meat scraps and bone scraps are often used to extract oil. When extracting oil from meat scraps and bone scraps, an oil press is required. An oil press consists of a press cage, a spiral extrusion roller, a drive system, etc. Among them, the press cage is the core component. It achieves efficient oil extraction by combining physical constraints, dynamic filtration and pressure regulation with the spiral extrusion roller.

[0003] The surface of the press cage has sieve holes for filtering oil. During operation, the sieve holes are easily clogged by fibrous materials, collagen or oil from meat scraps and bone scraps, which affects the filtering effect. Oil or dust will also adhere to its outer wall. Therefore, it is necessary to clean it by air blowing or high-pressure water spraying.

[0004] Because the screen holes on the press cage are distributed in a gradient, meaning the screen hole sizes are not consistent, it is difficult to ensure that the set pressure is suitable for different screen hole sizes during cleaning. Excessive pressure will damage the press cage structure, while insufficient pressure will affect the cleaning effect. In addition, when using a spray method to clean sticky substances such as collagen, water will enter the press cage through the screen holes, affecting the pressing operation inside the press cage, causing the pressing operation to be interrupted, and affecting the overall pressing efficiency.

[0005] In addition, oil presses used for refining animal fats often adopt an integrated press cage structure. When the screen structure is damaged due to improper cleaning pressure settings, the entire press cage needs to be replaced, resulting in high maintenance costs. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a filtration mechanism for an oil press to overcome the shortcomings of the prior art. The mechanism includes a press cage, which is a modular and detachable structure. A cleaning component is provided above the press cage for cleaning the screen holes of different apertures on the press cage in sections online. A rotating component is provided on the left side of the press cage for driving the press cage to rotate intermittently.

[0007] The cleaning components include a cover fixedly installed on the frame of the oil press, a cleaning assembly installed inside the cover for air blowing and water rinsing of the press cage, and a water guiding assembly installed outside the cover for guiding water to the outside of the press cage.

[0008] The cleaning assembly includes a sliding cover installed inside the housing, an air blower installed inside the cover for cleaning the screen holes to prevent clogging, a sprayer for cleaning the outer wall of the press cage and the screen holes, and an isolation component for isolating the screen holes during cleaning of the outer wall to prevent water from entering the press cage through the screen holes.

[0009] Preferably, the pressing cage includes a cylinder with multiple sets of sieve holes evenly opened from left to right, a ring plate is fixedly installed at the left end of the cylinder, and multiple insertion slots are equally spaced along the circumference of both the inner and outer walls of the cylinder. A replacement insert plate with a U-shaped structure and an opening facing left is inserted between two corresponding insertion slots. A fixing member is provided at the right end of the cylinder for fixing multiple replacement insert plates at the same time.

[0010] Preferably, the press cage further includes a sealing element for sealing the gap between the replacement insert plate and the insertion groove. The sealing element includes a sliding plate. The cylinder has an installation groove that communicates with the insertion groove and is distributed alternately. The installation groove extends through the right end of the cylinder. Sliding plates are slidably installed on both sides of the installation groove along its width direction. A rubber strip is detachably installed on the side of the sliding plate away from the installation groove.

[0011] Preferably, the fixing component includes a fixing ring fixed to the right end of the cylinder by bolts, and a plurality of positioning strips corresponding one-to-one with the sealing component are evenly installed on the left end of the fixing ring along its circumference. The positioning strips are inserted between two sliding plates corresponding to the same mounting groove.

[0012] Preferably, the air blowing component includes a rectangular frame that is slidably installed in a closed cover. The upper end of the rectangular frame is connected to the air inlet via a hose, and the lower end of the rectangular frame is connected to multiple jet heads arranged in a matrix via a connecting pipe. An isolation component is installed outside the jet heads. The isolation component is a cylindrical structure with the opening facing downwards. A rubber sealing ring is detachably installed at the bottom end of the cylinder. The diameter of the cylinder is larger than the diameter of all the sieve holes.

[0013] Preferably, the spraying component includes a first straight pipe fixedly installed between two adjacent left and right isolation components and a second straight pipe disposed between two rows of front and rear air jets. The left and right ends of the second straight pipe are fixedly connected to the corresponding isolation components through connecting rods, and the first straight pipe and the adjacent second straight pipe are connected through a short pipe. The lower ends of the first straight pipe and the second straight pipe are connected to multiple spray heads at equal intervals on the left and right. The spray heads corresponding to the first straight pipe and the spray heads corresponding to the second straight pipe are staggered on the left and right. The upper end of the first straight pipe in the middle is connected to the water inlet through a flexible hose.

[0014] Preferably, the lower ends of the left and right sides of the enclosure are provided with rubber sealing strips, and the outer walls of the front and rear sides of the enclosure are provided with multiple sets of left and right evenly distributed limiting members. Each limiting member consists of two semicircular blocks that are symmetrically fixed on the enclosure. The arc surfaces of the two semicircular blocks are distributed opposite each other. Push strips are installed on the inner walls of the front and rear sides of the enclosure. The push strips are located between the two semicircular blocks of the limiting members. Multiple left and right evenly distributed notches are opened on the push strips. The spacing between adjacent notches is the same as the spacing between adjacent limiting members.

[0015] Preferably, a gap is left between the lower end of the cover and the outer wall of the press cage. The water guiding component includes a triangular plate fixedly installed on the left end of the front and rear sides of the cover. A guide plate is fixedly installed on the right side of the triangular plate away from the cover. The lower end of the guide plate is in contact with the outer wall of the press cage. A drain ring with a drain outlet at the lower end is fixedly installed between the right ends of the front and rear guide plates. The guide plate, the drain ring and the cover together form a flow area for guiding water to be discharged outward. The upper end of the drain ring has a water inlet that communicates with the right end of the flow area.

[0016] Preferably, the side of the guide plate away from the cover is flat and has a rubber scraper with its lower end attached to the outer wall of the press cage; the side of the guide plate near the cover is inclined and has a structure with greater thickness on the left and less thickness on the right.

[0017] Preferably, in the multiple groups of sieve holes distributed from left to right, the sieve holes in the same group have the same diameter, and the sieve holes in different groups gradually increase in diameter from left to right. The sieve holes penetrate the cylinder and the replacement insert plate, and the sieve holes have a conical structure with a large diameter at the outer end and a small diameter at the inner end.

[0018] As can be seen from the above technical solutions, the oil press filter mechanism designed in this invention has the following beneficial effects: First, this invention uses cleaning components to perform online zoned cleaning of the press cage, which can select an appropriate cleaning pressure according to the actual aperture of the screen holes, avoiding damage to the press cage structure due to excessive pressure or affecting the cleaning effect due to insufficient pressure. By combining zoned customized pressure with air blowing / spray dual cleaning modes, dynamic pressure matching is achieved, thereby balancing the cleaning effect and equipment safety. At the same time, the press cage adopts a combined detachable structure, which reduces maintenance costs through modular replacement and quick sealing mechanism.

[0019] Second, this invention allows for the selection of either air blowing or spraying methods to clean the screen holes according to actual needs. When using air blowing to clean the screen holes or spraying to clean the outer wall of the press cage, the water guiding component, the sealing cover, and the isolation component work together to prevent water from entering the press cage through the screen holes, ensuring the normal operation of the pressing operation. When pressing is not required, spraying can be used to further clean the screen holes, effectively preventing clogging. The cleaning method can be flexibly adjusted according to actual needs, minimizing the impact on the pressing operation while ensuring the cleaning effect. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention from a first perspective.

[0022] Figure 2 This is a three-dimensional structural diagram of the present invention from a second perspective.

[0023] Figure 3 This is a front sectional view of the present invention.

[0024] Figure 4 This is a top view of the press cage and rotating components.

[0025] Figure 5 It is a side sectional view of the cylinder, fasteners, and seals.

[0026] Figure 6 It is a bottom view of the jet head, spray head, etc.

[0027] Figure 7 It is a three-dimensional structural diagram of the enclosure and the limiting component.

[0028] Figure 8 This is a side view of the enclosure and the limiting component.

[0029] Figure 9 yes Figure 3 Enlarged diagram of point A in the middle.

[0030] Reference numerals: 1. Pressing cage; 11. Cylinder; 12. Ring plate; 121. Sealing plate; 13. Replacement insert plate; 14. Fixing component; 141. Fixing ring; 142. Positioning strip; 15. Sealing component; 151. Sliding plate; 152. Rubber strip; 2. Cleaning component; 21. Cover; 211. Base; 212. Lifting block; 22. Cleaning assembly; 23. Water guiding assembly; 231. Triangular plate; 232. Guide plate; 233. Drainage ring; 234. Rubber scraper; 24. Enclosed cover; 25. Air blowing component; 251. Rectangular frame; 252. Air jet head; 26. Spraying component; 261. Straight pipe No. 1; 262. Straight pipe No. 2; 263. Spray head; 27. Isolation component; 28. Limiting component; 29. ​​Pushing strip; 3. Rotating component. Detailed Implementation

[0031] To enable those skilled in the art to better understand the present invention, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] See Figure 1 A filtration mechanism for an oil press includes a pressing cage 1, which is a modular and detachable structure. A cleaning component 2 is provided above the pressing cage 1 for cleaning screens with different apertures in sections online. A rotating component 3 is provided on the left side of the pressing cage 1 for driving the pressing cage 1 to rotate intermittently.

[0033] Specifically, the rotating component 3 includes a toothed ring fixedly installed on the outer wall of the left end of the pressing cage 1. A gear meshes above the toothed ring. The gear is rotatably installed on the left end of the cleaning component 2. The gear is intermittently driven to rotate by a drive motor (not shown in the figure) fixedly installed on the cleaning component 2, thereby driving the toothed ring to rotate intermittently, so that the cleaning component 2 can clean the screen holes that rotate to its direct lower position.

[0034] See Figure 2 and Figure 3 The pressing cage 1 includes a cylinder 11 with multiple sets of screen holes evenly distributed from left to right. Each set of screen holes consists of multiple screen holes evenly distributed around the circumference of the cylinder 11. Among the multiple sets of screen holes distributed from left to right, the screen holes in the same set have the same aperture, and the aperture of the screen holes in different sets gradually increases from left to right, that is, the aperture at the feed end is the largest, so as to quickly discharge free oil and avoid the accumulation of bone residue. In addition, the screen holes have a conical structure with a large aperture at the outer end and a small aperture at the inner end to prevent the end of the screen holes from being blocked.

[0035] See Figure 1 and Figure 3 A ring plate 12 is fixedly installed at the left end of the cylinder 11. Specifically, the ring plate 12 can be installed by welding or bolting. The ring plate 12 has a slag discharge port. A sealing plate 121 is detachably installed (e.g., bolted) on the outside of the slag discharge port. The outer wall of the sealing plate 121 is in contact with the inner wall of the cylinder 11. When it is necessary to discharge the residue in the pressing cage 1, the sealing plate 121 is removed to allow the residue to be discharged from the slag discharge port. During the pressing operation, the slag discharge port is blocked by the sealing plate 121.

[0036] See Figure 3 and Figure 4 Multiple insertion slots are provided at equal intervals along the circumference of both the inner and outer walls of the cylinder 11. A replacement insert plate 13 with a U-shaped cross-section and an opening facing left is inserted between two corresponding insertion slots. The sieve holes penetrate the cylinder 11 and the replacement insert plate 13. A fixing member 14 for fixing multiple replacement insert plates 13 at the right end of the cylinder 11 is provided.

[0037] During the pressing operation, the replacement plate 13 contacts the raw material placed in the cylinder 11 and the rotating spiral pressure roller inside the cylinder 11 (a mature technology in existing oil presses, which will not be described in detail here). When the wear reaches a certain level, the corresponding replacement plate 13 can be removed and replaced without replacing the entire pressing cage 1, thus effectively reducing maintenance costs.

[0038] See Figure 1 and Figure 5The press cage 1 also includes a sealing element 15 for sealing the gap between the replacement insert plate 13 and the insertion groove. The sealing element 15 includes a sliding plate 151. The cylinder 11 has an installation groove that communicates with the insertion groove and is distributed alternately. The installation groove passes through the right end of the cylinder 11. The sliding plate 151 is slidably installed on both sides of the installation groove along its width direction. A rubber strip 152 is detachably installed on the side of the sliding plate 151 away from the installation groove.

[0039] See Figure 5 The fixing member 14 includes a fixing ring 141 fixed to the right end of the cylinder 11 by bolts. Multiple positioning strips 142 corresponding to the sealing members 15 are evenly installed on the left end of the fixing ring 141 along its circumference. The positioning strips 142 are inserted between two sliding plates 151 corresponding to the same mounting groove. In order to reduce the resistance when the positioning strips 142 are inserted, multiple ball bearings (not shown in the figure) can be rotatably installed on the side wall of the sliding plate 151 corresponding to the positioning strips 142.

[0040] Before installing or removing the replacement insert 13, remove the retaining ring 141 from the cylinder 11 so that the positioning strip 142 moves out between the two sliding plates 151. At this time, both sliding plates 151 have movable space, and the rubber strip 152 is no longer pressed tightly against the side wall of the replacement insert 13, thereby reducing the resistance when the replacement insert 13 moves and improving the convenience of disassembly and assembly.

[0041] After the replacement insert 13 is installed, align the positioning strip 142 with the gap between the sliding plates 151, so that the sliding plates 151 drive the rubber strip 152 to press tightly onto the replacement insert 13, thus sealing the gap between the replacement insert 13 and the insertion slot.

[0042] See Figure 1 , Figure 2 and Figure 3 The cleaning component 2 includes a cover 21 fixedly installed on the frame of the oil press (not shown in the figure), a cleaning component 22 installed inside the cover 21 for air blowing and water rinsing of the press cage 1, and a water guiding component 23 installed outside the cover 21 for guiding water to the outside of the press cage 1. A gap is left between the lower end of the cover 21 and the outer wall of the press cage 1 to allow the rinsing water to drain.

[0043] See Figure 3 and Figure 9 The cleaning component 22 includes a sliding cover 24 installed inside the cover 21, an air blowing component 25 installed inside the cover 24 for cleaning the screen holes to prevent clogging, a spraying component 26 for spraying the outer wall of the press cage 1 and the screen holes, and an isolation component 27 for isolating the screen holes during cleaning of the outer wall to prevent water from entering the press cage 1 through the screen holes.

[0044] Specifically, a sliding groove is provided at the upper end of the cover 21. A base 211 is installed in the sliding groove by sliding left and right through an electric slider. A lifting block 212 is installed in the base 211 by sliding up and down. The closed cover 24 is installed at the lower end of the lifting block 212. The cleaning component 22 is indirectly driven to move left and right through the electric slider, thereby cleaning the screen holes located in the cover 21 in sections. This allows for control of the air blowing and water flushing pressure according to the different screen hole sizes, thereby ensuring the cleaning effect while avoiding damage to the press cage 1.

[0045] See Figure 6 and Figure 9 The air blowing component 25 includes a rectangular frame 251 that is slidably mounted within a closed cover 24. The upper end of the rectangular frame 251 is connected to an air inlet on the lifting block 212 via a flexible hose. The lower end of the rectangular frame 251 is connected to multiple jet nozzles 252 arranged in a matrix via a connecting pipe. The air inlet is connected to an external high-pressure air supply device, thereby enabling the jet nozzles 252 to spray gas at a set pressure value to clear blockages in the corresponding size of the sieve holes. It should be noted that the front-to-back distance and left-to-right distance between the jet nozzles 252 are determined according to the distribution of the sieve holes. The configuration is designed so that during cleaning operations, the jet nozzle 252 corresponds to the position of the screen holes located inside the enclosure 24. The isolation member 27 is installed outside the jet nozzle 252. Specifically, the isolation member 27 is a cylindrical structure with the opening facing downwards. A rubber sealing ring is detachably installed at the bottom of the cylinder. The diameter of the cylinder is larger than the diameter of all the screen holes. During air blowing to clear blockages, the bottom of the cylinder of the isolation member 27 abuts against the outer wall of the press cage 1, and the corresponding screen holes are located inside the isolation member 27 to prevent the water sprayed by the spray member 26 from entering the press cage 1 through the screen holes.

[0046] See Figure 6 and Figure 9 The spray component 26 includes a first straight pipe 261 fixedly installed between two adjacent left and right isolation components 27 and a second straight pipe 262 arranged between two rows of front and rear spray nozzles 252. The left and right ends of the second straight pipe 262 are fixedly connected to the corresponding isolation components 27 through connecting rods, and the first straight pipe 261 and the adjacent second straight pipe 262 are connected through a short pipe. The lower ends of the first straight pipe 261 and the second straight pipe 262 are connected to multiple spray nozzles 263 at equal intervals on the left and right. The spray nozzles 263 corresponding to the first straight pipe 261 and the spray nozzles 263 corresponding to the second straight pipe 262 are staggered on the left and right. The upper end of the first straight pipe 261 in the middle is connected to the water inlet provided on the lifting block 212 through a hose, and the water inlet is connected to an external water supply device.

[0047] When the screen holes are cleared by the air blowing component 25, the outer wall of the press cage 1 can be rinsed by the spray head 263 to remove the grease, dust and other impurities adhering to the outer wall. The water generated when rinsing the outer wall will not enter the interior of the press cage 1, so it will not affect the pressing operation.

[0048] Since air blowing is not effective at cleaning highly viscous substances such as collagen, it is necessary to periodically clean the screen holes by spraying hot water. Before this, the pressing operation should be stopped and the press cage 1 should be free of residual material. Then, the rectangular frame 251 can be adjusted back and forth using an existing drive method such as an electric actuator, so that the spray head 263 corresponding to the second straight pipe 262 can be aligned with the screen hole to be cleaned. At this time, hot water with a set pressure and temperature can be sprayed into the screen hole through the corresponding spray head 263, thereby cleaning the highly viscous substances.

[0049] See Figure 3 , Figure 7 , Figure 8 and Figure 9 The lower ends of the left and right sides of the enclosure 24 are provided with rubber sealing strips. The outer walls of the front and rear sides of the enclosure 24 are provided with multiple sets of left and right evenly distributed limiting members 28. Each limiting member 28 is composed of two semi-circular blocks that are symmetrically fixed on the enclosure 24. The arc surfaces of the two semi-circular blocks are distributed opposite each other. Pushing strips 29 are installed on the inner walls of the front and rear sides of the cover 21. The pushing strips 29 are located between the two semi-circular blocks of the limiting member 28. Multiple left and right evenly distributed notches are opened on the pushing strips 29. The upper end of the notches is chamfered. The spacing between adjacent notches is the same as the spacing between adjacent limiting members 28.

[0050] The height of the closed cover 24 is limited by the cooperation of the push bar 29 and the limiting member 28. When the cleaning component 22 moves to the cleaning position, the multiple limiting members 28 move to the top of the corresponding notch. The upper semi-circular block loses the supporting role of the push bar 29. Under the action of gravity, the closed cover 24 and its internal structure move downward, so that the rubber sealing strips on the left and right sides of the closed cover 24 and the rubber sealing ring at the bottom of the isolation member 27 are tightly attached to the outer wall of the press cage 1. This prevents water from overflowing to the left and right sides of the closed cover 24 and entering the interior of the press cage 1 through the screen holes located outside the closed cover 24 during operation of the spraying member 26. In order to further improve the sealing effect of the rubber sealing strip and the rubber sealing ring, a downward pressure spring can be set between the lifting block 212 and the base 211. The elastic force of the downward pressure spring increases the tightness of the fit between the rubber sealing strip, the rubber sealing ring and the press cage 1.

[0051] When the cleaning component 22 needs to move downward to the cleaning position, the upper semi-circular block contacts the notch and gradually moves upward along the chamfer of the notch, so that the rubber strip 152 and the rubber sealing ring are separated from the outer wall of the squeezing cage 1, thereby reducing the resistance during movement.

[0052] It should be noted that when the rubber sealing strips on the left and right sides of the closed cover 24 are in close contact with the outer wall of the press cage 1, there is still a gap between the front and rear side walls of the closed cover 24 and the outer wall of the press cage 1. Therefore, the water sprayed by the spraying component 26 during operation can flow out from the gap between the front and rear side walls of the closed cover 24 and the press cage 1 and be discharged to the outside of the press through the water guiding component 23, thus preventing water from accumulating inside the closed cover 24.

[0053] See Figure 1 , Figure 2 and Figure 3 The water guiding component 23 includes a triangular plate 231 fixedly installed on the left end of the front and rear sides of the cover 21. A guide plate 232 is fixedly installed on the right end of the triangular plate 231 away from the cover 21. The lower end of the guide plate 232 is in contact with the outer wall of the press cage 1. A drain ring 233 with a drain outlet at the lower end is fixedly installed between the right ends of the front and rear guide plates 232. The guide plate 232, the drain ring 233 and the cover 21 together form a flow area for guiding water to be discharged outward. The upper end of the drain ring 233 has a water inlet that communicates with the right end of the flow area.

[0054] See Figure 2 The guide plate 232 is flat on the side away from the cover 21 and is detachably equipped with a rubber scraper 234 whose lower end is attached to the outer wall of the press cage 1. On the one hand, the rubber scraper 234 can work with the guide plate 232 to further prevent water from flowing out of the flow area and avoid water from entering the interior of the press cage 1 through the screen holes on the press cage 1, thus affecting the normal operation of the pressing. On the other hand, when the press cage 1 rotates intermittently, the rubber scraper 234 can perform preliminary scraping and cleaning of the impurities adhering to the outer wall of the press cage 1, thereby working with the cleaning component 22 to quickly complete the cleaning operation and ensure the filtration effect of the press cage 1.

[0055] See Figure 1 and Figure 2 The guide plate 232 has a sloping side near the cover 21 and a structure with a greater thickness on the left and a smaller thickness on the right, so as to quickly guide the water flowing out of the cover 21 from left to right to the water inlet and into the drain ring 233, and finally discharge it through the drain outlet, thus avoiding water accumulation in the flow area.

[0056] The above provides a detailed description of the oil press filter mechanism provided by the present invention. For those skilled in the art, based on the ideas of the embodiments of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A filtration mechanism for an oil press, comprising a press cage, wherein the press cage is a modular and detachable structure, a cleaning component is provided above the press cage for cleaning screen holes of different apertures in sections online, and a rotating component is provided on the left side of the press cage for driving the press cage to rotate intermittently. The cleaning components include a cover fixedly installed on the frame of the oil press, a cleaning assembly installed inside the cover for air blowing and water rinsing of the press cage, and a water guiding assembly installed outside the cover for guiding water to the outside of the press cage. The cleaning assembly includes a sliding cover installed inside the housing, an air blower installed inside the cover for cleaning the screen holes to prevent clogging, a sprayer for cleaning the outer wall of the press cage and the screen holes, and an isolation component for isolating the screen holes during cleaning of the outer wall to prevent water from entering the press cage through the screen holes.

2. The oil press filter mechanism according to claim 1, wherein the press cage includes a cylinder with multiple sets of screen holes evenly opened from left to right, a ring plate is fixedly provided at the left end of the cylinder, multiple insertion slots are equally spaced along the circumference of both the inner and outer walls of the cylinder, and a replacement insertion plate with a U-shaped structure and an opening facing left is inserted between two corresponding insertion slots, and a fixing member is provided at the right end of the cylinder for simultaneously fixing multiple replacement insertion plates.

3. The oil press filter mechanism according to claim 2, wherein the press cage further includes a sealing element for sealing the gap between the replacement insert plate and the insertion groove, the sealing element including a sliding plate, and an installation groove provided on the cylinder body that communicates with the insertion groove and is distributed alternately, the installation groove penetrating the right end of the cylinder body, and sliding plates are slidably installed on both sides of the installation groove along its width direction, and a rubber strip is detachably installed on the side of the sliding plate away from the installation groove.

4. The oil press filter mechanism according to claim 3, wherein the fixing member includes a fixing ring fixedly disposed at the right end of the cylinder by bolts, and a plurality of positioning strips corresponding one-to-one with the sealing member are evenly installed on the left end of the fixing ring along its circumference, and the positioning strips are inserted between two sliding plates corresponding to the same mounting groove.

5. The oil press filter mechanism according to claim 1, wherein the air blowing component includes a rectangular frame that is slidably installed in a closed cover, the upper end of the rectangular frame is connected to the air inlet through a hose, the lower end of the rectangular frame is connected to a plurality of jet heads distributed in a matrix through a connecting pipe, an isolation component is provided outside the jet heads, the isolation component is a cylindrical structure with the opening facing downward, a rubber sealing ring is detachably installed at the bottom end of the cylinder, and the diameter of the cylinder is larger than the diameter of all the screen holes.

6. The filtration mechanism of an oil press according to claim 5, wherein the spraying component includes a first straight pipe fixedly installed between two adjacent left and right isolation components and a second straight pipe disposed between two rows of front and rear jet nozzles, the left and right ends of the second straight pipe are fixedly connected to the corresponding isolation components through connecting rods, and the first straight pipe and the adjacent second straight pipe are connected through a short pipe, and the lower ends of the first straight pipe and the second straight pipe are each connected to multiple spray nozzles at equal intervals on the left and right, and the spray nozzles corresponding to the first straight pipe and the spray nozzles corresponding to the second straight pipe are staggered on the left and right; the upper end of the first straight pipe in the middle is connected to the water inlet through a flexible hose.

7. The oil press filter mechanism according to claim 6, wherein rubber sealing strips are provided at the lower ends of the left and right sides of the sealed cover, and multiple sets of left and right evenly distributed limiting members are provided on the outer walls of the front and rear sides of the sealed cover. The limiting members are composed of two semi-circular blocks that are symmetrically fixed on the sealed cover. The arc surfaces of the two semi-circular blocks are distributed opposite each other. Pushing strips are installed on the inner walls of the front and rear sides of the cover. The pushing strips are located between the two semi-circular blocks of the limiting members. Multiple left and right evenly distributed notches are opened on the pushing strips. The spacing between adjacent notches is the same as the spacing between adjacent limiting members.

8. The oil press filter mechanism according to claim 1, wherein a gap is left between the lower end of the cover and the outer wall of the press cage, and the water guiding component includes a triangular plate fixedly installed on the left end of the front and rear sides of the cover, a guide plate fixedly installed on the right side of the triangular plate away from the cover, the lower end of the guide plate is in contact with the outer wall of the press cage, and a drain ring with a drain outlet at the lower end is fixedly installed between the right ends of the front and rear guide plates, and the guide plate, the drain ring and the cover together form a flow area for guiding water to be discharged outward, and the upper end of the drain ring has a water inlet communicating with the right end of the flow area.

9. The oil press filter mechanism according to claim 8, wherein the guide plate is flat on the side away from the cover and is detachably equipped with a rubber scraper whose lower end is in contact with the outer wall of the press cage; the guide plate is inclined on the side near the cover and has a structure with greater thickness on the left and less thickness on the right.

10. The oil press filter mechanism according to claim 2, wherein in the multiple sets of screen holes distributed from left to right, the screen holes in the same set have the same aperture, the screen holes in different sets gradually increase in aperture from left to right, the screen holes penetrate the cylinder and the replacement insert plate, and the screen holes have a conical structure with a large aperture at the outer end and a small aperture at the inner end.

Images