Fan for extracting coffee beans

Abstract

The fan comprises a machine body, a fan body is fixedly arranged in the machine body, one end of an air inlet pipe of the fan body is fixedly connected with a dust removal cylinder, the dust removal cylinder is fixedly connected with the machine body, a filter cylinder is fixedly arranged in the dust removal cylinder, and a pipeline is fixedly arranged on one side of the dust removal cylinder in a penetrating mode; an air outlet barrel is arranged on the portion, located on one side of the pipeline, of the machine body, the air outlet barrel is fixedly connected with an air outlet pipe of the draught fan, a fixing frame is fixedly arranged at the top of the dust removal barrel, and a cleaning assembly used for cleaning dust of the filter barrel is arranged on the fixing frame. According to the fan for extracting the coffee beans, through cooperation of the disc, the moving rod and the curve groove, the two cleaning pads can alternately abut against the filter cartridge, and the cleaning effect on the filter cartridge is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of coffee bean processing, in particular to a fan for extracting coffee beans. Background Art

[0002] In the roasting process of coffee beans, the fan plays a vital role. It is not only used to control the pressure and temperature in the roasting room, but also involves the transportation of coffee beans. Specifically, the fan can extract coffee beans from the storage or feed hopper and send them into the roasting room for roasting. This process mainly depends on the airflow power generated by the fan. By adjusting the wind speed and pressure, the delivery speed and amount of coffee beans can be accurately controlled.

[0003] While the fan uses the power of airflow to extract the coffee beans in the hopper to the roasting device, it also causes impurities mixed in the coffee beans to enter the fan, such as dust, small particles of stone and other substances. If too much dust enters the fan, it will affect the working efficiency of the fan. Therefore, a filter device is usually installed on the fan to filter the incoming air and remove dust and other impurities mixed in the air. The filter device usually uses a cylindrical filter element, which can effectively intercept dust in the air. The filter element needs to be cleaned after working for a certain period of time. Usually, the shell is removed and the filter element is unassembled, and finally the filter element is taken out for cleaning. The operation is relatively complicated. If there is a lot of dust attached to the surface of the filter element, such dismantling and cleaning can effectively clean the filter element. If there is less dust attached to the surface of the filter element and the fan is used for a short time, it only needs to be simply cleaned. Dismantling and cleaning will waste a lot of time and affect processing efficiency. Summary of the invention

[0004] The object of the present invention is to provide a fan for extracting coffee beans to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fan for extracting coffee beans, comprising a body, a fan is fixedly arranged in the body, a dust removal cylinder is fixedly connected to one end of the air inlet pipe of the fan, the dust removal cylinder is fixedly connected to the body and a filter cylinder is fixedly arranged in the dust removal cylinder, a pipe is fixedly penetrated on one side of the dust removal cylinder, the body is provided with an air outlet cylinder on one side of the pipe, the air outlet cylinder is fixedly connected to the air outlet pipe of the fan, a fixing frame is fixedly arranged on the top of the dust removal cylinder, and a cleaning component for cleaning the filter cylinder is arranged on the fixing frame.

[0006] As a further solution of the present invention: the cleaning assembly includes a fixed rod, which is fixedly connected to the fixed frame, a movable frame is slidably arranged on the outer side of the fixed rod, a slot is provided on the top of the dust removal cylinder, the movable frame is slidably connected to the slot, a plurality of transverse grooves are provided in a linear array in the movable frame, a rotating shaft is rotatably arranged in the transverse groove, a disc is fixedly arranged on the top of the rotating shaft, two curved grooves are provided on the disc, and movable rods are slidably arranged in the curved grooves, a cleaning pad is fixedly arranged on one end of the movable rod away from the disc, and the two movable rods are slidably connected to the inner walls on both sides of the transverse groove respectively.

[0007] As a further solution of the present invention: four groups of cleaning components are arranged in a circular array in the single-layer transverse groove, a vertical rod is rotatably arranged in the transverse groove on one side of the rotating shaft, the vertical rod is connected to the rotating shaft through a belt drive, and a gear is fixed on the top of the vertical rod.

[0008] As a further solution of the present invention: a rotating groove is opened on the movable frame, a cylinder is movably embedded in the rotating groove, a plurality of rings are fixedly arranged in a linear array on the cylinder close to the gear side, four groups of racks are arranged in a circular array on a single ring, the racks are meshed with the gear for transmission, and the racks on two adjacent rings are not on the same vertical line.

[0009] As a further solution of the present invention: a circular plate is fixedly provided at one end of the cylinder, the fixing rod is slidably connected to the circular plate, a limiting groove is provided on the fixing rod, a limiting rod is fixedly provided at the contact position between the circular plate and the fixing rod, and the limiting rod is slidably fitted in the limiting groove.

[0010] As a further solution of the present invention: the limiting groove is composed of a straight groove and an arc groove, two arc grooves with opposite rotation directions are connected together by the straight groove, and the limiting groove is composed of multiple groups of straight grooves and multiple groups of arc grooves.

[0011] As a further solution of the present invention: a vertical plate is fixedly arranged on the movable rod, a vertical groove is opened on the vertical plate, a movable rod is movably arranged in the vertical groove, a scraper is fixedly connected to one end of the movable rod, and the scraper is movably abutted against the cleaning pad.

[0012] As a further solution of the present invention: a cross bar is fixedly provided at one end of the movable rod away from the scraper, a positioning plate is fixedly provided in the cross groove, a positioning groove is opened on the positioning plate, the positioning groove is composed of multiple groups of inclined grooves, and the cross bar is slidably fitted in the positioning groove.

[0013] As a further solution of the present invention: a spring is fixedly arranged between the vertical slot and the bottom of the movable rod.

[0014] As a further solution of the present invention: the heights of the two cleaning pads are different, and four cleaning pads of the same height in the same transverse groove will abut against each other.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) Through the cooperation of the disc, the moving rod and the curved groove, the two cleaning pads can alternately contact the filter cartridge to ensure the cleaning effect of the filter cartridge; (2) Through the cooperation of the limiting rod, the limiting groove and the cylinder, the cylinder will rotate when the movable frame moves downward along the fixed rod, so that the rack and the gear will mesh, driving the disc to rotate to achieve the replacement of the cleaning pad; (3) The design that the racks on the upper and lower adjacent rings are not in the same straight line can realize the replacement of the cleaning pads in the upper and lower adjacent horizontal grooves in an alternating manner during the rotation of the cylinder, ensuring that there is always a cleaning pad on the outside of the filter cylinder to clean it; (4) Through the coordination of the moving rod, the vertical plate, the movable rod, the horizontal rod and the positioning groove, the scraper can clean the cleaning pad as it moves away from the filter cartridge, thereby removing dust attached to the surface. The cleanliness of the cleaning pad can be further ensured to ensure the cleaning quality of the filter cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the overall internal structure of the present invention.

[0018] Figure 3 It is a schematic diagram of the structure of the fixing frame in the present invention.

[0019] Figure 4 It is a schematic diagram of the structure of the filter cartridge in the present invention.

[0020] Figure 5 It is a schematic diagram of the external structure of the mobile frame in the present invention.

[0021] Figure 6 It is a schematic diagram of the structure of the rotating groove in the present invention.

[0022] Figure 7 It is a schematic diagram of the internal structure of the cylinder in the present invention.

[0023] Figure 8 for Figure 7 Enlarged schematic diagram of part A in the middle.

[0024] Fig. 9 It is a schematic diagram of the structure of the cleaning component in the present invention.

[0025] Fig.10Schematic diagram of the positional relationship of adjacent racks in the present invention.

[0026] Fig.11 It is a schematic diagram of the positional relationship between the limiting rod and the limiting groove in the present invention.

[0027] Fig.12 It is a structural schematic diagram of the movable rod in the present invention.

[0028] In the figure: 1, machine body; 2, fan; 3, filter cartridge; 4, dust cartridge; 41, notch; 5, pipe; 6, air outlet; 7, fixed frame; 8, cleaning assembly; 81, fixed rod; 82, moving frame; 821, rotating groove; 83, horizontal groove; 84, rotating shaft; 85, disc; 86, curved groove; 87, moving rod; 88, cleaning pad; 9, vertical rod; 10, belt; 11, gear; 12, cylinder; 13, ring; 14, rack; 15, round plate; 16, limiting groove; 161, straight groove; 162, arc groove; 17, limiting rod; 18, vertical plate; 181, vertical groove; 19, movable rod; 20, scraper; 21, horizontal rod; 22, positioning plate; 221, positioning groove; 23, spring. DETAILED DESCRIPTION

[0029] See also Figure 1-Figure 12In an embodiment of the present invention, a fan for extracting coffee beans comprises a body 1, a fan 2 is fixedly arranged in the body 1, one end of the air inlet pipe of the fan 2 is fixedly connected with a dust collection cylinder 4, the dust collection cylinder 4 is fixedly connected to the body 1 and a filter cylinder 3 is fixedly arranged in the dust collection cylinder 4, a pipe 5 is fixedly penetrated on one side of the dust collection cylinder 4, an air outlet cylinder 6 is arranged on the body 1 at one side of the pipe 5, the air outlet cylinder 6 is fixedly connected to the air outlet pipe of the fan 2, a fixing frame 7 is fixedly arranged on the top of the dust collection cylinder 4, and a cleaning component 8 for cleaning the filter cylinder 3 is arranged on the fixing frame 7; the pipe 5 is connected through the feed hopper of the roasting machine, and the feed hopper of the roasting machine is also connected to the coffee bean holding device, and the motor of the fan 2 is started, and the airflow power generated by the fan 2 will blow the coffee beans in the holding device through the action of the pipe 5. When the coffee beans are extracted into the feed hopper, some dust and other impurities will be mixed in the coffee beans. Therefore, in the process of extraction by the fan 2, in addition to extracting the coffee beans into the feed hopper, some dust will enter the dust collector 4 along the pipe 5. After some dust is filtered out by the filter cartridge 3 in the dust collector 4, the clean air enters the fan 2 through the air inlet pipe and is finally discharged through the air outlet 6. This will not affect the working state of the internal components of the fan 2. The air outlet 6 is mute-treated. Silencing cotton and other materials are arranged on the outside of the air outlet 6 to reduce the noise of the air outlet 6 when the air is discharged. After extracting a part of the coffee beans, the filter cartridge 3 needs to be cleaned slightly. The cleaning component 8 arranged on the fixed frame 7 can clean the filter cartridge 3 to remove the dust attached to the surface of the filter cartridge 3 to prepare for the next coffee bean extraction. The machine body 1 provides support.

[0030] See also Figure 3 , Figure 5 , Figure 6 ,and Figure 8-Figure 9As shown, in this embodiment, preferably, the cleaning assembly 8 includes a fixed rod 81, the fixed rod 81 is fixedly connected to the fixed frame 7, a moving frame 82 is slidably arranged on the outer side of the fixed rod 81, a notch 41 is provided on the top of the dust collecting cylinder 4, the moving frame 82 is slidably connected to the notch 41, a plurality of transverse grooves 83 are provided in a linear array in the moving frame 82, a rotating shaft 84 is rotatably arranged in the transverse groove 83, a disc 85 is fixedly arranged on the top of the rotating shaft 84, two curved grooves 86 are provided on the disc 85, and moving rods 87 are slidably arranged in the curved grooves 86, a cleaning pad 88 is fixedly arranged on one end of the moving rod 87 away from the disc 85, and the two moving rods 87 are slidably connected to the inner walls on both sides of the transverse groove 83 respectively;When it is necessary to clean the filter cartridge 3, the cover of the slot 41 is opened. When extracting coffee beans, the cover is closed to prevent air from being discharged to the outside of the machine body 1 through the slot 41, thereby affecting the environment. After the cover is opened, the moving frame 82 is moved downward along the fixed rod 81. The moving frame 82 passes through the slot 41 and enters the dust removal cartridge 4. A circular groove is provided in the center of the moving frame 82. The diameter of the circular groove is the same as the diameter of the filter cartridge 3. When the moving frame 82 moves downward, there will be a cleaning pad 88 in each layer of the horizontal groove 83 that abuts against the outer surface of the filter cartridge 3, and the other cleaning pad 88 does not. The cleaning pad 88 abuts against the filter cartridge 3, and in the process of the moving frame 82 moving downward, the cleaning pad 88 cleans the outer surface of the filter cartridge 3 to remove the dust attached to the surface of the filter cartridge 3. The number of the transverse grooves 83 is set to an even number and is greater than 2. After the moving frame 82 moves downward for a certain distance, the rotating shaft 84 in the even-numbered transverse grooves 83 is rotated first, and the rotation of the rotating shaft 84 drives the disc 85 to rotate. The rotation of the disc 85 drives the two curved grooves 86 to rotate, thereby driving the two moving rods 87 to move toward each other and then driving the two cleaning pads 88 to move. The cleaning pad 88 originally abutting against the filter cartridge 3 moves in the direction away from the filter cartridge 3. The cleaning pad 88 that was not originally in contact with the filter cartridge 3 moves toward the direction close to the filter cartridge 3 until it is in contact with the outer side of the filter cartridge 3. Because after moving a certain distance, the surface of the cleaning pad 88 that was originally in contact with the filter cartridge 3 will be adhered to a certain amount of dust, and the cleaning effect of the cleaning pad 88 will be affected. By replacing the cleaning pad 88, the cleaning effect of the filter cartridge 3 can be ensured, and the states of the components in the odd-numbered transverse groove 83 remain unchanged. After continuing to move downward for a certain distance, the rotating shaft 84 in the odd-numbered transverse groove 83 is rotated, which will also drive the cleaning pad 88 in the odd-numbered transverse groove 83 to be replaced. If the odd-numbered and If the rotating shaft 84 in the even-numbered transverse groove 83 is rotated, the cleaning pads 88 in all transverse grooves 83 will be replaced at the same time. During the replacement of the cleaning pads 88, there will be a period of time when the outer side of the filter cartridge 3 is not cleaned by the cleaning pad 88, which will result in poor cleaning effect in this part of the filter cartridge 3. After the cleaning pads 88 of the even-numbered and odd-numbered layers are replaced alternately one after another, the moving frame 82 continues to move downward along the fixed rod 81, and then the rotating shafts 84 of the odd-numbered and even-numbered layers are rotated in the opposite direction one after another to realize the replacement of the cleaning pads 88 in the transverse grooves 83 of the same layer again. ;

[0031] See also Figure 6-Figure 9As shown, in the present embodiment, preferably, four groups of the cleaning components 8 are arranged in an annular array in the single-layer transverse groove 83, a vertical rod 9 is rotatably arranged in the transverse groove 83 on one side of the rotating shaft 84, the vertical rod 9 is connected to the rotating shaft 84 by a belt 10, and a gear 11 is fixedly arranged on the top of the vertical rod 9; four groups of cleaning components 8 are arranged in the single-layer transverse groove 83, that is, four cleaning pads 88 abut against each other so as to wrap the filter cartridge 3 in the middle, and the rotation of the rotating shaft 84 in the transverse grooves 83 of the even and odd layers will drive the two cleaning pads 88 in the layer to exchange positions, but the outside of the filter cartridge 3 will always be wrapped by four cleaning pads 88, so that the cleaning effect of the filter cartridge 3 can be ensured, the rotating gear 11 will drive the vertical rod 9 to rotate, and the rotation of the vertical rod 9 will drive the belt 10 to rotate, thereby driving the rotating shaft 84 and the disc 85 to rotate, thereby causing the cleaning pads 88 in the transverse groove 83 to exchange positions.

[0032] See also Figure 5 , Figure 6-Figure 8 and Fig.10 As shown, in this embodiment, preferably, a rotating groove 821 is provided on the movable frame 82, and a cylinder 12 is movably embedded in the rotating groove 821. A plurality of rings 13 are fixedly arranged in a linear array on the cylinder 12 near the side of the gear 11, and four sets of racks 14 are arranged in an annular array on a single ring 13. The racks 14 are meshed with the gear 11 for transmission, and the racks 14 on two adjacent rings 13 are not on the same vertical line; the movable frame 82 moves downward along the fixed rod 81 to drive the cylinder 12 to move synchronously, and at this time, the corresponding four cleaning pads 88 in each layer of the horizontal groove 83 are in contact with each other, and the outer side of the filter cartridge 3 is cleaned during the downward movement of the movable frame 82. After the movable frame 82 moves downward for a certain distance, the cylinder 12 is rotated. The rotation of the cylinder 12 in the rotating groove 821 will drive the ring 13 and the four sets of racks 14 to rotate. The racks 14 on two adjacent rings 13 are not in the same straight line. For example, the rotation of the ring 13 and the four sets of racks 14 in the even-numbered transverse groove 83 will first drive the gear 11 in the layer to rotate, thereby driving the corresponding rotating shaft 84 to rotate so that the cleaning pad 88 is replaced. After the cleaning pad 88 in the even-numbered transverse groove 83 is replaced, the rack 14 on the ring 13 corresponding to the odd-numbered transverse groove 83 will engage with the gear 11 in the layer, thereby driving the cleaning pad 88 in the layer to be replaced. Subsequently, the moving frame 82 is moved downward while the cylinder 12 is rotated forward and reversely alternately to achieve the cleaning pads 88 in the even-numbered and odd-numbered transverse grooves 83. The replacement is also alternate, thereby ensuring the cleaning quality of the filter cartridge 3.

[0033] See also Figure 6 and Fig.11As shown, in the present embodiment, preferably, a circular plate 15 is fixedly provided at one end of the cylinder 12, the fixing rod 81 is slidably connected to the circular plate 15, a limiting groove 16 is provided on the fixing rod 81, a limiting rod 17 is fixedly provided at the contact position between the circular plate 15 and the fixing rod 81, and the limiting rod 17 is slidably fitted with the limiting groove 16; as the cylinder 12 and the circular plate 15 move downward with the moving frame 82, the limiting rod 17 on the circular plate 15 will slide along the limiting groove 16 provided on the fixing rod 81, thereby causing the limiting rod 17 and the circular plate 15 to rotate, and the rotation of the circular plate 15 will drive the cylinder 12 to rotate in the rotating groove 821, thereby causing the rack 14 and the gear 11 to rotate, thereby realizing the alternating replacement of the cleaning pad 88.

[0034] See also Fig.11 As shown, in this embodiment, preferably, the limiting groove 16 is composed of a straight groove 161 and an arc groove 162, and the two arc grooves 162 with opposite rotation directions are connected together by the straight groove 161, and the limiting groove 16 is composed of multiple groups of straight grooves 161 and multiple groups of arc grooves 162; when the cylinder 12 and the circular plate 15 move downward with the moving frame 82, the limiting rod 17 on the circular plate 15 will slide along the limiting groove 16 opened by the fixed rod 81, and the limiting rod 17 will first slide along the straight groove 161, at this time, the circular plate 15 and the cylinder 12 will not rotate, and when the limiting rod 17 slides along the straight groove 161 to the arc groove 162 section, it will drive the cylinder 12 to rotate, and the rotation of the cylinder 12 drives the rack 14 and the gear 11 to rotate The meshing time of the gear 11 and the rack 14 in the odd-numbered and even-numbered transverse grooves 83 is different, which will alternately drive the cleaning pads 88 in the odd-numbered and even-numbered transverse grooves 83 to be replaced, and then the limiting rod 17 moves to the next section of the straight groove 161, and maintains this state to clean the filter cartridge 3, and then the limiting rod 17 moves to the next section of the arc groove 162. The rotation direction of this section of the arc groove 162 is opposite to that of the previous section of the arc groove 162, that is, it can drive the cylinder 12 to rotate in the opposite direction to the initial position, so that the gear 11 rotates in the opposite direction to drive the two cleaning pads 88 to be replaced again and return to the initial state. The design of the arc groove 162 can ensure that the cleaning quality of the filter cartridge 3 is ensured by the cleaning pad 88 while the moving frame 82 moves downward.

[0035] See also Fig.12As shown, in this embodiment, preferably, a vertical plate 18 is fixedly provided on the movable rod 87, and a vertical slot 181 is opened on the vertical plate 18. A movable rod 19 is movably provided in the vertical slot 181, and one end of the movable rod 19 is fixedly connected to a scraper 20, and the scraper 20 is movably abutted against the cleaning pad 88; the two cleaning pads 88 exchange positions with each other, and when one of the cleaning pads 88 moves in the direction away from the filter cartridge 3, the movable rod 19 moves downward along the vertical slot 181, and the movable rod 19 moves downward along the vertical plate 18 to drive the scraper 20 to move downward, and the scraper 20 moves downward to scrape the side of the cleaning pad 88 that abuts against the filter cartridge 3. The side of the cleaning pad 88 that abuts against the filter cartridge 3 is made of a flexible material, such as a sponge. During the abutment between the scraper 20 and the cleaning pad 88, dust on the cleaning pad 88 will be scraped off, thereby cleaning the cleaning pad 88, and when the cleaning pad 88 abuts against the filter cartridge 3 again later, the cleaning effect of the filter cartridge 3 can also be guaranteed.

[0036] See also Fig.12 As shown, in the present embodiment, preferably, a cross bar 21 is fixedly provided at one end of the movable rod 19 away from the scraper 20, a positioning plate 22 is fixedly provided in the cross groove 83, a positioning groove 221 is provided on the positioning plate 22, and the positioning groove 221 is composed of a plurality of groups of oblique grooves, and the cross bar 21 slides and fits with the positioning groove 221; the movement of the movable rod 87 in the direction away from the filter cartridge 3 will drive the cleaning pad 88, the vertical plate 18, the movable rod 19 and the scraper 20 to move synchronously together, and the movement of the movable rod 19 will drive the cross bar 21 to move along the positioning groove 221 provided on the positioning plate 22, and the positioning groove 221 is composed of a plurality of groups of oblique grooves. Therefore, in the process of the cross bar 21 moving along the positioning groove 221, the movable rod 19 will be driven to move back and forth up and down along the vertical groove 181, thereby driving the scraper 20 to move back and forth up and down along the cleaning pad 88, thereby achieving the purpose of cleaning the cleaning pad 88.

[0037] See also Fig.12 As shown, in this embodiment, preferably, a spring 23 is fixedly provided between the vertical slot 181 and the bottom of the movable rod 19 ; the spring 23 can provide support for the movable rod 19 to move up and down along the vertical slot 181 .

[0038] See also Figure 6-Figure 10 As shown, in the present embodiment, preferably, the heights of the two cleaning pads 88 are different, and the four cleaning pads 88 of the same height in the same transverse groove 83 will abut against each other; the heights of the two cleaning pads 88 and the moving rod 87 in the same transverse groove 83 should be set to be different, so as to avoid collision between the two moving rods 87 and the cleaning pads 88 during the mutual movement.

[0039] The working principle of the present invention is as follows: the pipeline 5 is connected to the feed hopper of the roasting machine, and the feed hopper of the roasting machine is also connected to the coffee bean holding device, and the motor of the fan 2 is started. The airflow power generated by the fan 2 will extract the coffee beans in the holding device into the feed hopper through the action of the pipeline 5. The coffee beans will be mixed with some dust and other impurities. Therefore, in the process of extraction by the fan 2, in addition to extracting the coffee beans into the feed hopper, some dust will enter the dust removal cylinder 4 along the pipeline 5. After some dust is filtered out by the filter cylinder 3 in the dust removal cylinder 4, the clean air enters the fan 2 through the air inlet pipe, and is finally discharged through the air outlet cylinder 6. When it is necessary to clean the filter cylinder 3, the cover plate of the slot 41 is opened to extract the coffee beans. When the coffee beans are being removed, the cover is closed, which can prevent air from being discharged to the outside of the machine body 1 through the slot 41, thereby affecting the environment. After the cover is opened, the moving frame 82 moves downward along the fixed rod 81, and the moving frame 82 passes through the slot 41 and enters the dust removal cylinder 4. A circular groove is opened in the center of the moving frame 82, and the diameter of the circular groove is the same as the diameter of the filter cylinder 3. When the moving frame 82 moves downward, there will be a cleaning pad 88 in each layer of the horizontal groove 83, which is in contact with the outer surface of the filter cylinder 3, and the other cleaning pad 88 does not abut against the filter cylinder 3. In the process of the moving frame 82 moving downward, the cleaning pad 88 will clean the outer surface of the filter cylinder 3 to remove the dust attached to the surface of the filter cylinder 3. The number of horizontal grooves 83 is set to an even number and is greater than 2. After the moving frame 82 moves downward for a certain distance, the rotating shaft 84 in the even-numbered horizontal groove 83 is rotated first. The rotation of the rotating shaft 84 will drive the disc 85 to rotate. The rotation of the disc 85 will drive the two curved grooves 86 to rotate, thereby driving the two moving rods 87 to move toward each other and then driving the two cleaning pads 88 to move. The cleaning pad 88 that originally abutted against the filter cartridge 3 moves in the direction away from the filter cartridge 3, and the cleaning pad 88 that originally did not abut against the filter cartridge 3 moves in the direction close to the filter cartridge 3 until it abuts against the outside of the filter cartridge 3. Because after moving a certain distance, the surface of the cleaning pad 88 that originally abutted against the filter cartridge 3 will be adhered to a certain amount of dust, and the cleaning effect of the cleaning pad 88 will be affected. By replacing the cleaning pad 88, the filter cartridge can be ensured. 3, the states of the components in the odd-numbered transverse groove 83 remain unchanged, and after continuing to move downward for a distance, the rotating shaft 84 in the odd-numbered transverse groove 83 is rotated, which will also drive the cleaning pad 88 in the odd-numbered transverse groove 83 to be replaced. If the rotating shaft 84 in the odd-numbered and even-numbered transverse grooves 83 is rotated at the same time, the cleaning pads 88 in all transverse grooves 83 will be replaced at the same time. During the replacement of the cleaning pad 88, there will be a period of time when the outside of the filter cartridge 3 is not cleaned by the cleaning pad 88, which will result in a poor cleaning effect on this part of the filter cartridge 3. After the cleaning pads 88 of the even-numbered and odd-numbered layers are replaced alternately one after the other, the moving frame 82 continues to move downward along the fixed rod 81,Subsequently, the rotating shafts 84 of the odd-numbered layers and the even-numbered layers are rotated in opposite directions one after the other to realize the replacement of the cleaning pads 88 in the horizontal grooves 83 of the same layer again. At the same time, the rotation of the rotating shafts 84 in the horizontal grooves 83 of the odd-numbered layers and the even-numbered layers is realized by the rotation of the cylinder 12, that is, the cylinder 12 and the circular plate 15 move downward with the moving frame 82, and the limiting rod 17 on the circular plate 15 will slide along the limiting groove 16 provided on the fixed rod 81, and the limiting rod 17 will slide along the straight groove 161 first, and at this time, the circular plate 15 and The cylinder 12 will not rotate. When the limit rod 17 slides along the straight groove 161 to the arc groove 162, the cylinder 12 will be driven to rotate. The rotation of the cylinder 12 drives the rack 14 and the gear 11 to rotate. The meshing time of the gear 11 and the rack 14 in the odd-numbered and even-numbered transverse grooves 83 is different, which will alternately drive the cleaning pads 88 in the odd-numbered and even-numbered transverse grooves 83 to be replaced. Then the limit rod 17 moves to the next straight groove 161, and maintains this state to clean the filter cylinder 3. , Then the limit rod 17 moves to the next arc groove 162, which has the opposite rotation direction to the previous arc groove 162, that is, it can drive the cylinder 12 to rotate in the opposite direction to the initial position, so that the gear 11 rotates in the opposite direction to drive the two cleaning pads 88 to be replaced again and return to the initial state. The design of the arc groove 162 can ensure the cleaning quality of the filter cylinder 3 by changing the position of the cleaning pad 88 while the moving frame 82 moves downward. In addition, the movement of the moving rod 87 in the direction away from the filter cylinder 3 will drive the cleaning pad 88, the vertical plate 18, the movable rod 19 and the scraper 20 to move synchronously. The movement of the movable rod 19 will drive the cross bar 21 to move along the positioning groove 221 provided in the positioning plate 22. The positioning groove 221 is composed of multiple groups of inclined grooves. Therefore, when the cross bar 21 moves along the positioning groove 221, it will drive the movable rod 19 to move up and down along the vertical groove 181, thereby driving the scraper 20 to move up and down along the cleaning pad 88, so as to achieve the purpose of cleaning the cleaning pad 88. ,

Claims

1. A coffee bean extraction fan, comprising a body (1), characterized in that: A fan (2) is fixedly arranged in the machine body (1); a dust collecting cylinder (4) is fixedly connected to one end of the air inlet pipe of the fan (2); the dust collecting cylinder (4) is fixedly connected to the machine body (1) and a filter cylinder (3) is fixedly arranged in the dust collecting cylinder (4); a pipe (5) is fixedly arranged through one side of the dust collecting cylinder (4); an air outlet cylinder (6) is arranged on the machine body (1) at one side of the pipe (5); the air outlet cylinder (6) is fixedly connected to the air outlet pipe of the fan (2); a fixing frame (7) is fixedly arranged on the top of the dust collecting cylinder (4); a cleaning component (8) for cleaning the filter cylinder (3) is arranged on the fixing frame (7).

2. A coffee bean extraction fan according to claim 1, characterized in that: The cleaning assembly (8) comprises a fixed rod (81), the fixed rod (81) being fixedly connected to the fixed frame (7), a movable frame (82) being slidably arranged on the outer side of the fixed rod (81), a notch (41) being provided on the top of the dust removal cylinder (4), the movable frame (82) being slidably connected to the notch (41), a plurality of transverse grooves (83) being provided in a linear array in the movable frame (82), a rotating shaft (84) being rotatably arranged in the transverse groove (83), a disc (85) being fixedly arranged on the top of the rotating shaft (84), two curved grooves (86) being provided on the disc (85), a movable rod (87) being slidably arranged in each of the curved grooves (86), a cleaning pad (88) being fixedly arranged on one end of the movable rod (87) away from the disc (85), and the two movable rods (87) being slidably connected to the inner walls on both sides of the transverse groove (83) respectively.

3. A coffee bean extraction fan according to claim 2, characterized in that: Four groups of cleaning components (8) are arranged in an annular array in the single-layer transverse groove (83), a vertical rod (9) is rotatably arranged on one side of the rotating shaft (84) in the transverse groove (83), the vertical rod (9) is connected to the rotating shaft (84) by a belt (10), and a gear (11) is fixedly arranged on the top of the vertical rod (9).

4. The coffee bean extraction fan according to claim 3, characterized in that: The movable frame (82) is provided with a rotation groove (821), a cylinder (12) is movably embedded in the rotation groove (821), a plurality of circular rings (13) are fixedly arranged in a linear array on one side of the cylinder (12) close to the gear (11), four groups of racks (14) are arranged in an annular array on a single circular ring (13), the racks (14) are meshed with the gear (11) for transmission, and the racks (14) on two adjacent circular rings (13) are not located on the same vertical line.

5. The coffee bean extraction fan according to claim 4, characterized in that: A circular plate (15) is fixedly arranged at one end of the cylinder (12); the fixing rod (81) is slidably connected to the circular plate (15); a limiting groove (16) is provided on the fixing rod (81); a limiting rod (17) is fixedly arranged at the contact position between the circular plate (15) and the fixing rod (81); and the limiting rod (17) is slidably fitted with the limiting groove (16).

6. The coffee bean extraction fan according to claim 5, characterized in that: The limiting groove (16) is composed of a straight groove (161) and an arc groove (162); two arc grooves (162) with opposite rotation directions are connected together through the straight groove (161); and the limiting groove (16) is composed of multiple groups of straight grooves (161) and multiple groups of arc grooves (162).

7. The coffee bean extraction fan according to claim 2, characterized in that: A vertical plate (18) is fixedly arranged on the movable rod (87), a vertical groove (181) is opened on the vertical plate (18), a movable rod (19) is movably arranged in the vertical groove (181), one end of the movable rod (19) is fixedly connected to a scraper (20), and the scraper (20) is movably abutted against the cleaning pad (88).

8. The coffee bean extraction fan according to claim 7, characterized in that: A cross bar (21) is fixedly arranged at one end of the movable rod (19) away from the scraper (20); a positioning plate (22) is fixedly arranged in the transverse groove (83); a positioning groove (221) is provided on the positioning plate (22); the positioning groove (221) is composed of a plurality of groups of inclined grooves; the cross bar (21) is slidably fitted with the positioning groove (221).

9. The coffee bean extraction fan according to claim 8, characterized in that: A spring (23) is fixedly arranged between the vertical groove (181) and the bottom of the movable rod (19).

10. The coffee bean extraction fan according to claim 3, characterized in that: The heights of the two cleaning pads (88) are different, and four cleaning pads (88) of the same height in the same transverse groove (83) will abut against each other.

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