Filtering device for edible oil production

Abstract

The invention relates to the technical field of filtering devices, in particular to a filtering device for edible oil production, which comprises a buffer tank, a motor is mounted at the position, close to the middle, of the upper end of the buffer tank, and a feeding pipe is fixedly connected to the position, close to one side, of the upper end of the buffer tank. A collecting mechanism is installed at the position, close to one side, of the outer side of the buffer tank, a discharging pipe is fixedly connected to the position, close to the lower end, of the outer side of the buffer tank, a filter cartridge is installed on the inner side of the buffer tank, a filter screen is arranged on the inner side of the filter cartridge, and the filter screen covers the bottom of the inner side of the filter cartridge; a filtering mechanism is arranged above the filter cartridge on the inner side of the buffer tank, the filter cartridge can be centrifugally filtered, and impurities in the filter cartridge can be extruded by a pressing plate, so that the filtering efficiency is improved, the loss of edible oil is reduced, the production cost is saved, and the quality of the edible oil is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of filtering devices, in particular to a filtering device used for edible oil production. Background Art

[0002] Edible oil refers to animal or plant oils used in the food production process. It is liquid at room temperature. Due to the source of raw materials, processing technology and quality, common edible oils are mostly plant oils. Oils need to be filtered during the production process to improve the purity of the edible oil.

[0003] Most of the existing edible oil filtering devices use a filter screen and other filtering objects arranged in the tank body to filter and separate the residue in the edible oil from the fluid grease. However, the residue particles carried in the grease are of different sizes. Some residues will get stuck in the filter holes of the filter screen and cannot be removed, hindering the flow of grease, causing the filter screen to be blocked, affecting the filtering efficiency of the entire filtering device, and the impurity particles will be mixed with some grease, so that part of the grease will be blocked when the impurities are filtered, thereby causing a waste of resources. For this reason, we propose a filtering device for edible oil production. Summary of the invention

[0004] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the present invention proposes a filtering device for edible oil production.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a filtering device for edible oil production, comprising a buffer tank, a motor is installed at the upper end of the buffer tank near the middle position, a feed pipe is fixedly connected to the upper end of the buffer tank near one side, a collecting mechanism is installed at the outer side of the buffer tank near one side, a discharge pipe is fixedly connected to the outer side of the buffer tank near the lower end, a filter cartridge is installed at the inner side of the buffer tank, a filter screen is arranged at the inner side of the filter cartridge, the filter screen covers the inner bottom of the filter cartridge, and a filtering mechanism is arranged above the filter cartridge inside the buffer tank.

[0006] Preferably, the upper end of the filter cartridge is fixedly connected to a second support plate, a feed trough is provided at the upper end of the second support plate, the output end of the feed pipe extends to the interior of the feed trough, a plurality of feed discharge holes are provided on the inner side of the feed trough, the inner wall of the buffer tank is fixedly connected to a first support plate, the upper end of the first support plate is fitted with the second support plate, a limiting groove is provided at the upper end of the first support plate, four groups of second spherical balls are installed on the outer side of the filter cartridge at the lower end of the second support plate, and the four groups of second spherical balls slide on the inner side of the limiting groove.

[0007] The transmission gear of the present invention is a gear which is connected with the transmission gear of the first gear to the upper and lower ends of the gear train, and the gear is connected with the transmission gear of the first gear to the gear train, and the gear is connected with the transmission gear of the second gear to the gear train.

[0008] Preferably, a second spring is arranged inside the outer limiting cylinder of the third rotating shaft, one end of the second spring is fixedly connected to the limiting plate, and the other end of the second spring is fixedly connected to the limiting cylinder.

[0009] Preferably, two groups of symmetrical square sliders are fixedly connected to the outer side of the third rotating shaft, the two groups of square sliders are slidably connected to the fourth rotating shaft, and the outer side of the fourth rotating shaft is fixedly connected to the second support plate.

[0010] Preferably, the lower end of the third rotating shaft is fixedly connected to a pressure plate, a plurality of collection grooves are provided on the outer side of the pressure plate, the inner sides of the plurality of collection grooves are rotatably connected to a fifth rotating shaft, the outer side of the fifth rotating shaft is rotatably connected to a baffle, the upper end of the baffle is fixedly connected to a limiting rope, and the other end of the limiting rope is fixedly connected to the pressure plate.

[0011] Preferably, a first gear is fixedly connected to the outer side of the fourth rotating shaft, the first gear is meshingly connected to the second gear, the lower end of the second gear is fixedly connected to the sixth rotating shaft, the sixth rotating shaft is rotatably connected to the inner side of the second support plate, and four groups of sweeping plates are fixedly connected to the outer side of the sixth rotating shaft, and two groups of scraping strips are commonly fixedly connected to the two ends of the four groups of sweeping plates, and the two groups of scraping strips are both in contact with the inner wall of the filter cylinder.

[0012] Preferably, a first spherical ball is fixedly connected to the lower end of the filter cylinder, filter plates are provided on both sides of the first spherical ball, the two groups of filter plates are arranged in opposite directions, second filter holes are opened on the opposite sides of the two groups of filter plates, and first filter holes are opened on the other opposite sides of the filter plates. The aperture of the second filter hole is larger than that of the first filter hole, and openings are provided on the ends of the two groups of filter plates facing away, and the ends of the two groups of filter plates facing away are in contact with the inner wall of the filter cylinder.

[0013] Preferably, the collecting mechanism includes a collecting box fixedly connected to the buffer tank, the lower end of the collecting box is designed as an inclined surface, a sealing ring is fixedly connected to the outer side of the collecting box, the sealing ring is fixedly connected to the buffer tank, a magnetic block is fixedly connected to the inner side of the collecting box near one side, and a folded filter is provided on the other side of the sealing ring.

[0014] Preferably, a first slide bar is slidably connected to the inner side of the collection box, a slide groove is provided in front of the inner sealing ring of the collection box, an oil leakage groove is provided below the first slide bar inside the collection box, a push block is fixedly connected to the outer side of the first slide bar near one end, the push block slides on the inner side of the slide groove, the lower end of the push block is fixedly connected to a connecting rod, the rear end of the connecting rod is fixedly connected to the folding filter, and a first spring is provided at the rear end of the push block outside the first slide bar, one end of the first spring is fixedly connected to the first slide bar, and the other end of the first spring is fixedly connected to the push block.

[0015] Compared with the prior art, the present invention provides a filtering device for edible oil production, which has the following beneficial effects: 1. Through the segmented filtering design, the pressure of unilateral filtering is reduced, and the effect of multi-layer filtering is achieved, making the edible oil cleaner and more sanitary. Through the mutual cooperation of the first guide bar and the second guide bar, the filter cartridge can be centrifugally filtered, and the pressure plate can also squeeze the impurities in the filter cartridge, thereby improving the filtering efficiency, reducing the loss of edible oil, and saving production costs. Through the mutual cooperation of the first gear and the second gear, the sweeping plate and the scraper can rotate counterclockwise to fully stir the edible oil in the filter cartridge and clean the impurities on the inner wall of the filter. Under the blessing of centrifugal force, the impurities are quickly deposited downward, so that the durability of the device is improved, and the production efficiency is improved. Through reasonable combination and optimization of filtering steps, the quality of edible oil is effectively improved.

[0016] 2. Through the cooperation between the fifth rotating shaft and the baffle, the pressing plate can be guided by the inclined surface of the baffle during the rising stage, so that the impurities deposited downward can quickly pass through the collecting tank for concentration. Then, during the pressing stage of the pressing plate, the baffle can be rotated upward and parallel to the pressing plate, so that the pressing plate can fully press the impurities below, and the edible oil can be squeezed out from the impurities, which not only makes the oil fully filtered but also avoids the waste of resources.

[0017] 3. Through the cooperation between the collection box and the filter plate, the metal impurities in the grease can be thrown in and collected by centrifugal force, so that the filter plate remains unobstructed, thereby continuously filtering the grease and providing the purity of the grease. The impurities in the collection box can be isolated from the grease by the folding filter, and the inclined design of the collection box can be used to divert the internal grease, so as to comprehensively collect the grease and avoid waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a filtering device for edible oil production proposed by the present invention; Figure 2 This is a schematic cross-sectional view of the overall structure of a filtering device for edible oil production proposed by the present invention; Figure 3 This is a schematic cross-sectional view of the overall structure of a filter mechanism of a filter device for edible oil production proposed by the present invention; Figure 4 A cross-sectional view of the filter mechanism of a filter device for edible oil production proposed by the present invention Figure 1 ; Figure 5 A cross-sectional view of the filter mechanism of a filter device for edible oil production proposed by the present invention Figure 2 ; Figure 6 A cross-sectional view of the filter mechanism of a filter device for edible oil production proposed by the present invention Figure 3 ; Figure 7 This is a schematic diagram of the overall structure of a collection mechanism of a filter device for edible oil production proposed by the present invention; Figure 8 This is a schematic cross-sectional view of the overall structure of a collection mechanism of a filter device for edible oil production proposed by the present invention; Fig. 9 A filtering device for edible oil production proposed by the present invention Figure 8 A schematic diagram of the structure enlargement of part A; Fig.10 This is a schematic top view of a partial structure of a collecting mechanism of a filtering device for edible oil production proposed by the present invention; Fig.11 A schematic cross-sectional view of a filter device for edible oil production proposed by the present invention Figure 1 ; Fig.12 A schematic cross-sectional view of a filter device for edible oil production proposed by the present invention Figure 2 ; Fig.13 A filtering device for edible oil production proposed by the present invention Figure 2 Schematic diagram of the enlarged structure of part B.

[0019] In the figure: 1, buffer tank; 2, feed pipe; 3, discharge pipe; 4, collection mechanism; 41, collection box; 42, sealing ring; 43, magnetic block; 44, first slide bar; 45, first spring; 46, push block; 47, connecting rod; 48, folding filter; 49, oil leakage groove; 410, slide; 5, motor; 6, filter mechanism; 61, first rotating shaft; 62, limiting cylinder; 63, second slide bar; 64, second rotating shaft; 65, first guide bar; 66, second guide bar; 67, limiting plate; 68, third rotating shaft; 69, second spring; 610, square shaped slider; 611, fourth rotating shaft; 612, pressure plate; 613, collecting trough; 614, fifth rotating shaft; 615, baffle; 616, limiting rope; 617, first gear; 618, second gear; 619, sixth rotating shaft; 620, sweeping plate; 621, scraping strip; 7, first supporting plate; 8, filter cartridge; 9, second supporting plate; 10, filter plate; 11, first filter hole; 12, second filter hole; 13, first spherical ball; 14, feed trough; 15, discharge hole; 16, second spherical ball; 17, filter screen; 18, limiting groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] See also Figure 1-Figure 13 A filtering device for edible oil production includes a buffer tank 1, a motor 5 is installed at the upper end of the buffer tank 1 near the middle, a feed pipe 2 is fixedly connected to the upper end of the buffer tank 1 near one side, a collecting mechanism 4 is installed at the outer side of the buffer tank 1 near one side, a discharge pipe 3 is fixedly connected to the outer side of the buffer tank 1 near the lower end, a filter cartridge 8 is installed at the inner side of the buffer tank 1, a filter screen 17 is arranged at the inner side of the filter cartridge 8, the filter screen 17 covers the inner bottom of the filter cartridge 8, and a filter mechanism 6 is arranged above the filter cartridge 8 inside the buffer tank 1.

[0022] In this embodiment, the upper end of the filter cartridge 8 is fixedly connected to the second support plate 9, and a feed trough 14 is provided at the upper end of the second support plate 9. The output end of the feed pipe 2 extends to the interior of the feed trough 14, and a plurality of discharge holes 15 are provided on the inner side of the feed trough 14. The inner wall of the buffer tank 1 is fixedly connected to the first support plate 7, and the upper end of the first support plate 7 is in contact with the second support plate 9. A limiting groove 18 is provided at the upper end of the first support plate 7. Four groups of second spherical balls 16 are installed on the outer side of the filter cartridge 8 at the lower end of the second support plate 9, and the four groups of second spherical balls 16 slide on the inner side of the limiting groove 18.

[0023] Specifically, the second support plate 9 limits the position of the filter cartridge 8, and the first support plate 7 supports the second support plate 9 to provide a certain support. The feed groove 14 allows the feed pipe 2 to still feed into the filter cartridge 8 through the feed groove 14 and the discharge hole 15 when the second support plate 9 rotates. The second spherical ball 16 provides support through the limit groove 18 when the filter cartridge 8 rotates, reduces friction, and assists rotation.

[0024] In this embodiment, the filtering mechanism 6 includes a first rotating shaft 61 fixedly connected to the output shaft of the motor 5, the lower end of the first rotating shaft 61 is fixedly connected to a limiting cylinder 62, the inner wall of the limiting cylinder 62 is fixedly connected with two sets of symmetrical second sliding rods 63, the inner side of the limiting cylinder 62 is provided with a second rotating shaft 64, the close ends of the two sets of second sliding rods 63 are in contact with the outer side of the second rotating shaft 64, the upper and lower ends of the second rotating shaft 64 are fixedly connected with two sets of symmetrical limiting plates 67, and the outer side of the second rotating shaft 64 is fixedly connected with four sets of first guide strips 6 5. Four groups of second guide bars 66 are fixedly connected to the outer side of the second rotating shaft 64. Four groups of first guide bars 65 and four groups of second guide bars 66 are cross-arranged on the outer side of the second rotating shaft 64. The upper ends of the four groups of first guide bars 65 are fixedly connected to a group of limit plates 67 near the upper side. The lower ends of the four groups of second guide bars 66 are fixedly connected to a group of limit plates 67 near the lower side. The lower end of the group of limit plates 67 near the lower side of the two groups of limit plates 67 is fixedly connected to the third rotating shaft 68. The outer side of the third rotating shaft 68 is slidably connected to the limit cylinder 62.

[0025] Specifically, the output shaft of the motor 5 drives the limiting cylinder 62 to rotate clockwise through the first rotating shaft 61, and the second sliding rod 63 slides on the outer side of the second rotating shaft 64 through the rotation of the limiting cylinder 62, and then touches the lower inclined surface of the first guide bar 65 to squeeze the lower inclined surface of the first guide bar 65, forcing the second sliding rod 63 to be guided by the first guide bar 65. Since the position of the second sliding rod 63 is fixed, the height of the second rotating shaft 64 will be lifted upward, and the second sliding rod 63 will continue to rotate and pass through the gap between the first guide bar 65 and the limiting plate 67, and then touch the upper inclined surface of the second guide bar 66 to squeeze the upper inclined surface of the second guide bar 66, forcing the second sliding rod 63 to be guided by the second guide bar 66, and then the second rotating shaft 64 is moved downward again through the guidance of the second guide bar 66, and the second sliding rod 63 continues to rotate and pass through the gap between the second guide bar 66 and the limiting plate 67, and then touches the lower inclined surface of the first guide bar 65 again, and this is repeated, so that the second rotating shaft 64 rotates and moves up and down at the same time.

[0026] In this embodiment, a second spring 69 is disposed inside the outer limiting cylinder 62 of the third rotating shaft 68 , one end of the second spring 69 is fixedly connected to the limiting plate 67 , and the other end of the second spring 69 is fixedly connected to the limiting cylinder 62 .

[0027] Specifically, the second spring 69 uses elastic force to buffer the pressure when the second rotating shaft 64 moves up and down.

[0028] In this embodiment, two groups of symmetrical square sliders 610 are fixedly connected to the outer side of the third rotating shaft 68 , and the two groups of square sliders 610 are slidably connected to the fourth rotating shaft 611 , and the outer side of the fourth rotating shaft 611 is fixedly connected to the second support plate 9 .

[0029] Specifically, when the third rotating shaft 68 moves up and down, it can drive the fourth rotating shaft 611 to rotate through the square slider 610, thereby rotating the filter cartridge 8.

[0030] In this embodiment, the lower end of the third rotating shaft 68 is fixedly connected to a pressure plate 612, and a plurality of collection grooves 613 are provided on the outer side of the pressure plate 612. The inner sides of the plurality of collection grooves 613 are rotatably connected to a fifth rotating shaft 614, and the outer side of the fifth rotating shaft 614 is rotatably connected to a baffle 615. The upper end of the baffle 615 is fixedly connected to a limiting rope 616, and the other end of the limiting rope 616 is fixedly connected to the pressure plate 612.

[0031] Specifically, when the pressing plate 612 is in a rotating state, some impurities at the upper end of the pressing plate 612 are guided into the collecting groove 613 through the rotating baffle 615. The pressing plate 612 is enabled to press the impurities below the pressing plate 612 back and forth by utilizing the up and down movement characteristics of the second rotating shaft 64 through the third rotating shaft 68. When the lower end of the pressing plate 612 is pressed against the impurities, the baffle 615 placed on the inclined surface is rotated upward through the fifth rotating shaft 614 to be parallel to the pressing plate 612. The oil is permeable and is squeezed out through the gap between the collecting groove 613 and the baffle 615, so that the remaining oil can seep out. When the pressing plate 612 is lifted upward, the baffle 615 is rotated downward again, and the angle of the baffle 615 is limited by the limiting rope 616.

[0032] In this embodiment, the outer side of the fourth rotating shaft 611 is fixedly connected to the first gear 617, the first gear 617 is meshingly connected to the second gear 618, the lower end of the second gear 618 is fixedly connected to the sixth rotating shaft 619, the sixth rotating shaft 619 is rotatably connected to the inner side of the second support plate 9, the outer side of the sixth rotating shaft 619 is fixedly connected to four groups of sweeping plates 620, and two groups of scraping strips 621 are fixedly connected to both ends of the four groups of sweeping plates 620, and the two groups of scraping strips 621 are both in contact with the inner wall of the filter cylinder 8.

[0033] Specifically, the fourth rotating shaft 611 drives the first gear 617 to rotate, the first gear 617 drives the second gear 618 to rotate, and the second gear 618 drives the sixth rotating shaft 619 to rotate in the opposite direction in the filter tube 8, and then the sweeping plate 620 is used to stir the edible oil, and then the scraper 621 is used to clean the inner wall of the filter screen 17 to avoid clogging by impurities and enhance the filtering effect.

[0034] In this embodiment, a first spherical ball 13 is fixedly connected to the lower end of the filter cylinder 8, and filter plates 10 are arranged on both sides of the first spherical ball 13. The two groups of filter plates 10 are arranged in opposite directions. Second filter holes 12 are opened on the opposite side of the two groups of filter plates 10, and first filter holes 11 are opened on the other opposite side of the filter plates 10. The aperture of the second filter hole 12 is larger than that of the first filter hole 11. The ends of the two groups of filter plates 10 facing away are both provided with openings, and the ends of the two groups of filter plates 10 facing away are both in contact with the inner wall of the filter cylinder 8.

[0035] Specifically, the first spherical ball 13 supports the filter tube 8 and reduces the friction. The first spherical ball 13 drives the two groups of filter plates 10 to rotate clockwise, so that the second filter hole 12 contacts the edible oil. After the edible oil passes through the second filter hole 12 and the first filter hole 11, the particulate impurities and metallic impurities are isolated in the filter plate 10. The filter plate 10 also uses centrifugal force to concentrate the internal impurities to both ends while rotating, but they are blocked by the buffer tank 1.

[0036] In this embodiment, the collecting mechanism 4 includes a collecting box 41 fixedly connected to the buffer tank 1. The lower end of the collecting box 41 is designed as a slope. A sealing ring 42 is fixedly connected to the outer side of the collecting box 41. The sealing ring 42 is fixedly connected to the buffer tank 1. A magnetic block 43 is fixedly connected to the inner side of the collecting box 41 near one side, and a folded filter screen 48 is provided on the other side of the sealing ring 42.

[0037] Specifically, the collecting box 41 is square and needs a sealing ring 42 to be sealed when connected to the circular buffer tank 1 to avoid leakage. The magnetic block 43 is used to collect magnetic metal impurities, and the folded filter 48 filters and isolates the impurities and cooking oil.

[0038] In this embodiment, a first slide bar 44 is slidably connected to the inner side of the collection box 41, a slide groove 410 is opened in front of the inner sealing ring 42 of the collection box 41, and an oil leakage groove 49 is opened below the inner first slide bar 44 of the collection box 41. A push block 46 is fixedly connected to the outer side of the first slide bar 44 near one end, and the push block 46 slides on the inner side of the slide groove 410. A connecting rod 47 is fixedly connected to the lower end of the push block 46, and the rear end of the connecting rod 47 is fixedly connected to the folding filter 48. A first spring 45 is provided at the rear end of the push block 46 on the outer side of the first slide bar 44, and one end of the first spring 45 is fixedly connected to the first slide bar 44, and the other end of the first spring 45 is fixedly connected to the push block 46.

[0039] Specifically, when the filter plate 10 rotates, it touches the push block 46, so that the push block 46 is forced to slide in the same direction in the slide groove 410, and then drives the first slide bar 44 to slide and compress the first spring 45. Then the push block 46 drives the folding filter screen 48 to fold through the connecting rod 47, so that the collection box 41 is opened, and the opening of the filter plate 10 throws the impurities inside the filter plate 10 into the collection box 41, and the magnetic impurities are adsorbed by the magnetic block 43. After the filter plate 10 and the push block 46 are staggered, the first spring 45 opens, so that the first The slide bar 44 is reset, and the first slide bar 44 drives the push block 46 to slide and reset. The push block 46 drives the folded filter 48 to open by the connecting rod 47, and the collection box 41 is closed to prevent some non-magnetic impurities inside the collection box 41 from mixing with the edible oil again. After the filtration is completed, the discharge pipe 3 is opened, and the filtered edible oil is collected through the discharge pipe 3. Part of the edible oil is controlled through the oil leakage groove 49 to avoid internal accumulation of the collection mechanism 4, and then flows into the buffer tank 1 through the bevel design of the collection box 41.

[0040] Working principle: when in use, the edible oil is output to the buffer tank 1 through the feed pipe 2, and enters the filter cylinder 8 through the discharge hole 15 in the feed trough 14, and the motor 5 is started, so that the output shaft of the motor 5 drives the limiting cylinder 62 to rotate clockwise through the first rotating shaft 61. The second slide bar 63 slides on the outer side of the second rotating shaft 64 through the rotation of the limiting cylinder 62 and touches the lower inclined surface of the first guide bar 65, forcing the second slide bar 63 to be guided by the first guide bar 65. Since the position of the second slide bar 63 is fixed, the height of the second rotating shaft 64 will be lifted upward, and the second spring 69 will be pulled open. The second slide bar 63 continues to rotate and passes through the gap between the first guide bar 65 and the limiting plate 67, and then touches the upper inclined surface of the second guide bar 66 to squeeze the upper inclined surface of the second guide bar 66, forcing the second slide bar 63 to be guided by the second guide bar 66, and then through the guide of the second guide bar 66 The second rotating shaft 64 moves downward again, and the return force of the second spring 69 buffers the pressure. The second sliding rod 63 continues to rotate and passes through the gap between the second guide strip 66 and the limiting plate 67, and then touches the lower inclined surface of the first guide strip 65 again. This is repeated, so that the second rotating shaft 64 rotates and moves up and down at the same time. The square slider 610 outside the third rotating shaft 68 first drives the fourth rotating shaft 611 to rotate, so that the fourth rotating shaft 611 drives the filter cartridge 8 to rotate, and the edible oil in the filter cartridge 8 is thrown out through the filter screen 17 by centrifugal force, and the fibrous impurities are concentrated at the lower end of the filter cartridge 8. When the filter cartridge 8 rotates, the feed groove 14 can continuously keep the feed of the feed pipe 2, and the filter cartridge 8 is limited by the second support plate 9. The second spherical ball 16 slides in the limiting groove 18 to assist the rotating shaft of the filter cartridge 8 and support the filter cartridge 8 through the support rod (not shown in the figure); The fourth rotating shaft 611 drives the first gear 617 to rotate, the first gear 617 drives the second gear 618 to rotate, and the second gear 618 drives the sixth rotating shaft 619 to rotate in the opposite direction in the filter cylinder 8, and then the edible oil is stirred by the sweeping plate 620, and then the inner wall of the filter screen 17 is cleaned by the scraper 621 to avoid clogging by impurities, promote the permeability of the edible oil, and enhance the filtering effect; The centrifugal force makes the impurities in the filter cartridge 8 concentrate downwards. The pressing plate 612 is in a rotating state at this time. Some impurities on the upper end of the pressing plate 612 are guided into the collecting tank 613 by the baffle 615 installed on the rotating inclined surface. The pressing plate 612 is pressed back and forth by the third rotating shaft 68 using the up and down movement characteristics of the second rotating shaft 64. When the lower end of the pressing plate 612 is pressed against the impurities, the baffle 615 placed on the inclined surface is rotated upwards through the fifth rotating shaft 614 to be parallel to the pressing plate 612. The oil is permeable and is squeezed out through the gap between the collecting tank 613 and the baffle 615, so that the remaining oil can seep out. When the pressing plate 612 is lifted upwards, the baffle 615 is rotated downwards again, and the angle of the baffle 615 is limited by the limit rope 616. After the edible oil leaves the filter cartridge 8, it enters the lower position of the buffer tank 1 and is concentrated. The filter cartridge 8 drives the first spherical ball 13 to rotate. The first spherical ball 13 supports the filter cartridge 8 and reduces friction. The first spherical ball 13 drives the two sets of filter plates 10 to rotate clockwise, so that the second filter hole 12 contacts the edible oil. After the edible oil passes through the second filter hole 12 and the first filter hole 11, the granular impurities and metallic impurities are isolated in the filter plate 10. The first filter hole 11 retains impurities and allows pure oil to pass through. The filter plate 10 also uses centrifugal force to concentrate the internal impurities to both ends while rotating, but is blocked by the buffer tank 1. When the filter plate 10 rotates, it touches the push block 46, so that the push block 46 is forced to slide in the same direction in the slide groove 410, and then drives the first slide rod 44 to slide and press the first spring 4 5, then the push block 46 drives the folding filter 48 to fold through the connecting rod 47, so that the collection box 41 is opened, and the opening of the filter plate 10 throws the impurities inside the filter plate 10 into the collection box 41, and the magnetic impurities are adsorbed by the magnetic block 43. After the filter plate 10 and the push block 46 are staggered, the first spring 45 opens to reset the first slide bar 44, and the first slide bar 44 drives the push block 46 to slide and reset. When the push block 46 drives the folding filter 48 to open by the connecting rod 47, the collection box 41 is closed to prevent some non-magnetic impurities in the collection box 41 from mixing with the edible oil again. After the filtration is completed, the discharge pipe 3 is opened, and the filtered edible oil is collected through the discharge pipe 3. Part of the edible oil is controlled through the oil leakage groove 49 to avoid internal accumulation of the collection mechanism 4, and then flows into the buffer tank 1 through the bevel design of the collection box 41.

[0041] It can be understood that when the filter plate 10 passes through the collection box 41, the folded filter screen 48 can be folded, thereby opening the entrance of the collection box 41, and allowing the impurities filtered by the filter plate 10 to enter the collection box 41 through the action of centrifugal force, and at this time, part of the edible oil will also enter the collection box 41. Due to the action of centrifugal force, the flow direction of the edible oil is toward the inside of the collection box 41, so that the impurities in the collection box 41 can be prevented from escaping. When the filter plate 10 passes through the entrance of the collection box 41, it can be staggered with the push block 46, so that the filter plate 10 can smoothly pass over the push block 46. After the filter plate 10 can smoothly pass over the push block 46, the folded filter screen 48 opens and closes the collection box 41 under the elastic force of the first spring 45, preventing the impurities in the collection box 41 from escaping. In this way, it can be prevented that some non-magnetic impurities in the collection box 41 are mixed with the edible oil again.

[0042] Depend on Figure 8 and Fig. 9 It can be seen that the oil leakage groove 49 is a micro groove connecting the collection box 41 and the buffer tank 1, so that the edible oil in the collection box 41 can flow into the buffer tank 1 through the oil leakage groove 49, avoiding excessive accumulation of edible oil in the collection box 41 and causing excessive pressure in the collection box 41. Since it is located at the top of the collection box 41, impurities in the collection box 41 can be prevented from escaping.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filtering device for edible oil production, comprising a buffer tank (1), characterized in that: A motor (5) is installed near the middle of the upper end of the buffer tank (1), a feed pipe (2) is fixedly connected to a position near one side of the upper end of the buffer tank (1), a collection mechanism (4) is installed near one side of the outer side of the buffer tank (1), a discharge pipe (3) is fixedly connected to a position near the lower end of the outer side of the buffer tank (1), a filter cartridge (8) is installed inside the buffer tank (1), a filter screen (17) is provided inside the filter cartridge (8), the filter screen (17) covers the inner bottom of the filter cartridge (8), and a filter mechanism (6) is provided above the filter cartridge (8) inside the buffer tank (1).

2. A filtering device for edible oil production according to claim 1, characterized in that: The upper end of the filter cartridge (8) is fixedly connected to a second support plate (9), the upper end of the second support plate (9) is provided with a feed trough (14), the output end of the feed pipe (2) extends to the inside of the feed trough (14), the inner side of the feed trough (14) is provided with a plurality of feed holes (15), the inner wall of the buffer tank (1) is fixedly connected to a first support plate (7), the upper end of the first support plate (7) is in contact with the second support plate (9), the upper end of the first support plate (7) is provided with a limiting groove (18), and four groups of second spherical balls (16) are installed on the outer side of the filter cartridge (8) at the lower end of the second support plate (9), and the four groups of second spherical balls (16) slide inside the limiting groove (18).

3. A filtering device for edible oil production according to claim 1, characterized in that: The filtering mechanism (6) comprises a first rotating shaft (61) fixedly connected to the output shaft of the motor (5); the lower end of the first rotating shaft (61) is fixedly connected to a limiting cylinder (62); the inner wall of the limiting cylinder (62) is fixedly connected to two groups of symmetrical second sliding rods (63); the inner side of the limiting cylinder (62) is provided with a second rotating shaft (64); the adjacent ends of the two groups of second sliding rods (63) are in contact with the outer side of the second rotating shaft (64); the upper and lower ends of the second rotating shaft (64) are fixedly connected to two groups of symmetrical limiting plates (67); the outer side of the second rotating shaft (64) is fixedly connected to four groups of first guide strips (65). The outer side of the second rotating shaft (64) is fixedly connected with four groups of second guide strips (66); the four groups of the first guide strips (65) and the four groups of the second guide strips (66) are cross-arranged on the outer side of the second rotating shaft (64); the upper ends of the four groups of the first guide strips (65) are fixedly connected with a group of limit plates (67) near the top; the lower ends of the four groups of the second guide strips (66) are fixedly connected with a group of limit plates (67) near the bottom; the lower end of the group of limit plates (67) near the bottom of the two groups of limit plates (67) is fixedly connected with a third rotating shaft (68); the outer side of the third rotating shaft (68) is slidably connected with the limit cylinder (62).

4. A filtering device for edible oil production according to claim 3, characterized in that: A second spring (69) is disposed inside the outer limiting cylinder (62) of the third rotating shaft (68), one end of the second spring (69) is fixedly connected to the limiting plate (67), and the other end of the second spring (69) is fixedly connected to the limiting cylinder (62).

5. The filtering device for edible oil production according to claim 3, characterized in that: Two groups of symmetrical square sliders (610) are fixedly connected to the outer side of the third rotating shaft (68), and the two groups of square sliders (610) are slidably connected to a fourth rotating shaft (611), and the outer side of the fourth rotating shaft (611) is fixedly connected to the second support plate (9).

6. A filtering device for edible oil production according to claim 3, characterized in that: The lower end of the third rotating shaft (68) is fixedly connected to a pressure plate (612), a plurality of collection grooves (613) are provided on the outer side of the pressure plate (612), the inner sides of the plurality of collection grooves (613) are rotatably connected to a fifth rotating shaft (614), the outer side of the fifth rotating shaft (614) is rotatably connected to a baffle (615), the upper end of the baffle (615) is fixedly connected to a limiting rope (616), the other end of the limiting rope (616) is fixedly connected to the pressure plate (612).

7. A filtering device for edible oil production according to claim 5, characterized in that: The outer side of the fourth rotating shaft (611) is fixedly connected to a first gear (617), the first gear (617) is meshingly connected to a second gear (618), the lower end of the second gear (618) is fixedly connected to a sixth rotating shaft (619), the sixth rotating shaft (619) is rotatably connected to the inner side of the second supporting plate (9), the outer side of the sixth rotating shaft (619) is fixedly connected to four groups of sweeping plates (620), the two ends of the four groups of sweeping plates (620) are commonly fixedly connected to two groups of scraping strips (621), and the two groups of scraping strips (621) are both in contact with the inner wall of the filter cartridge (8).

8. The filtering device for edible oil production according to claim 1, characterized in that: A first spherical ball (13) is fixedly connected to the lower end of the filter cartridge (8), and filter plates (10) are arranged on both sides of the first spherical ball (13). The two groups of filter plates (10) are arranged in opposite directions. The two groups of filter plates (10) are provided with second filter holes (12) on the opposite sides, and the first filter holes (11) are provided on the other opposite sides of the filter plates (10). The aperture of the second filter hole (12) is larger than that of the first filter hole (11). The two groups of filter plates (10) are provided with openings on the ends facing away, and the two groups of filter plates (10) are in contact with the inner wall of the filter cartridge (8) on the ends facing away.

9. A filtering device for edible oil production according to claim 1, characterized in that: The collecting mechanism (4) comprises a collecting box (41) fixedly connected to the buffer tank (1); the lower end of the collecting box (41) is designed as an inclined surface; a sealing ring (42) is fixedly connected to the outer side of the collecting box (41); the sealing ring (42) is fixedly connected to the buffer tank (1); a magnetic block (43) is fixedly connected to a position close to one side of the inner side of the collecting box (41); and a folded filter screen (48) is provided on the other side of the sealing ring (42).

10. A filtering device for edible oil production according to claim 9, characterized in that: A first slide bar (44) is slidably connected to the inner side of the collection box (41); a slide groove (410) is provided in front of the inner sealing ring (42) of the collection box (41); an oil leakage groove (49) is provided below the inner first slide bar (44) of the collection box (41); a push block (46) is fixedly connected to the outer side of the first slide bar (44) near one end; the push block (46) slides on the inner side of the slide groove (410); a connecting rod (47) is fixedly connected to the lower end of the push block (46); a rear end of the connecting rod (47) is fixedly connected to the folding filter (48); a first spring (45) is provided at the rear end of the push block (46) on the outer side of the first slide bar (44); one end of the first spring (45) is fixedly connected to the first slide bar (44); and the other end of the first spring (45) is fixedly connected to the push block (46).

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