Automatic filtering moisture removal cover

Abstract

The invention relates to the technical field of material moisture removal, and discloses an automatic filtering moisture removal cover which comprises a cover body arranged above a vibrating conveyor, a filtering mechanism is arranged in the cover body, the filtering mechanism comprises a belt type screen and a first driving assembly, a scraping and sweeping mechanism is arranged at the bottom of the belt type screen, a partition plate is arranged in the cover body, and the scraping and sweeping mechanism is arranged on the bottom of the belt type screen. The partition plate divides the interior of the cover body into a non-pressure area and a negative pressure area, the belt type screen is arranged below the partition plate, and the scraping and sweeping mechanism is arranged below the negative pressure area. The device is used for solving the problems that in the prior art, suction of a moisture removal cover enables the adsorption force between tobacco shreds and a screen to be high, and the tobacco shreds are difficult to scrape off by a scraper blade.

Description

Technical Field

[0001] The present invention relates to the technical field of material moisture removal, and particularly to an automatic filtering moisture removal hood. Background Art

[0002] The moisture removal hood of the moisture removal device is usually arranged above the vibrating conveyor, and plays a role in sucking the excess steam and moisture on the surface of the material during the cigarette making production. Since a small amount of cut tobacco will inevitably be inhaled during the suction process of the moisture removal hood, in the traditional technology, most of them block the cut tobacco from being inhaled by setting a screen, but it is more troublesome for the staff to clean the screen regularly.

[0003] In the prior art, by setting a belt screen that rotates circularly, and a scraper is arranged below the screen to scrape the cut tobacco adsorbed on the screen, so that the cut tobacco falls back onto the vibrating conveyor to realize the automatic cleaning of the screen.

[0004] However, it is found during use that the suction of the moisture removal hood will make the adsorption force between the cut tobacco and the screen stronger, and there is a problem that the scraper is difficult to scrape off the cut tobacco. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide an automatic filtering moisture removal hood to solve the problem in the prior art that the suction of the moisture removal hood will make the adsorption force between the cut tobacco and the screen stronger, and there is a problem that the scraper is difficult to scrape off the cut tobacco.

[0006] The present invention solves the above technical problems through the following technical means: An automatic filtering moisture removal hood, including a hood body arranged above the vibrating conveyor, a filtering mechanism is arranged inside the hood body, the filtering mechanism includes a belt screen and a first driving component, a scraping mechanism is arranged at the bottom of the belt screen, a partition board is arranged inside the hood body, the partition board divides the inside of the hood body into a non-pressure area and a negative pressure area, the belt screen is arranged below the partition board, and the scraping mechanism is arranged below the negative pressure area.

[0007] By setting the above structure, after the belt screen enters the non-pressure area, the adsorption force between the cut tobacco and the belt screen is weakened, and part of the cut tobacco automatically detaches from the belt screen. For the part of the cut tobacco that cannot automatically detach from the belt screen, it can be easily scraped off by the scraping mechanism, improving the scraping effect of the scraping mechanism on the belt screen.

[0008] Further, the scraping mechanism includes a scraper, the scraper is fixedly installed inside the hood body, and a vibration mechanism is arranged at the top of the scraper, and the vibration mechanism is used to knock the belt screen.

[0009] By setting the above structure, after the vibration mechanism knocks the belt screen, the vibration of the belt screen can make some small sundries that cannot be scraped off and adsorbed on the belt screen fall off, such as tobacco dust, dust, etc., further improving the cleaning effect of the belt screen.

[0010] Furthermore, the vibration mechanism includes a second driving component and a knocking piece. The belt screen forms an inner layer area, the knocking piece is movably arranged in the inner layer area, the second driving component is in transmission connection with the knocking piece. When the knocking piece knocks the belt screen on the bottom surface of the inner layer area, the belt screen vibrates.

[0011] By setting the above structure, the knocking piece is arranged in the inner layer area, and the knocking piece knocks the belt screen on the bottom surface of the inner layer area from top to bottom, so that the fine sundries on the belt screen fall downward, which is convenient for the fine sundries to separate from the belt screen and avoid sundries from entering the first driving component and affecting the normal operation of the first driving component.

[0012] Furthermore, the vibration mechanism further includes a mounting plate, the mounting plate is rotationally assembled in the housing, the second driving component is in transmission connection with the mounting plate, a mounting groove is formed on the mounting plate, the knocking piece includes a knocking end and a connecting end, and the connecting end is rotatably installed in the mounting groove. When the mounting plate rotates from the vertical state to the belt screen on the bottom surface of the inner layer area, the knocking piece rotates out of the mounting groove to knock the belt screen.

[0013] By setting the above structure, there is no need to rotate the mounting plate reciprocally. The second driving component only needs to drive the mounting plate to rotate in the rotation direction of the belt screen, effectively reducing the driving control difficulty of the mounting plate.

[0014] Furthermore, the second driving component includes a mounting bracket, the mounting bracket is fixedly assembled in the housing, a shaft body is fixedly arranged on the mounting bracket, an assembly groove is formed on the mounting plate, the mounting plate is rotationally assembled on the shaft body through the assembly groove, the outer surface of the mounting plate is in close contact with the belt screen on the bottom surface of the inner layer area, the assembly groove includes a translation section and rotation ends arranged at both ends of the translation section. When the shaft body is located in the translation section of the assembly groove, the belt screen drives the mounting plate to move horizontally. When the shaft body is located in the rotation end of the assembly groove, the belt screen drives the mounting plate to rotate with the shaft body as the rotation axis.

[0015] By setting the above structure, during the rotation of the belt screen, it can drive the mounting plate to translate and rotate, realizing the driving of the mounting plate without setting an independent driving device, thus reducing costs.

[0016] Furthermore, a fan blade is arranged on one side of the knocking piece close to the inner wall of the mounting groove, both ends of the fan blade are rotatably installed in the mounting groove, and a counterweight block is fixedly arranged at the top of the fan blade. When the mounting plate rotates from the vertical state to the belt screen on the bottom surface of the inner layer area, the rotation speed of the knocking piece is greater than that of the fan blade.

[0017] By setting the above structure, after the knocking member knocks on the belt screen, the fan blades rotate close to the knocking member. During the rotation of the fan blades, air flow is generated to blow the sundries knocked off by the knocking member away from the belt screen, improving the cleaning effect.

[0018] Furthermore, a plurality of through slots are formed in the knocking member.

[0019] By setting the above structure, the air flow generated by the rotation of the fan blades can blow through the through slots to the area below the knocking member, further improving the cleaning effect.

[0020] Furthermore, a dust collection hood is fixedly arranged on one side of the scraping plate, and a dust collection box is fixedly installed below the dust collection hood.

[0021] By setting the above structure, the sundries can be collected for cleaning during later maintenance.

[0022] Furthermore, the mounting bracket is fixedly connected to the dust collection hood.

[0023] By setting the above structure, it is convenient for the disassembly and assembly of the vibration mechanism during later maintenance.

[0024] Furthermore, a maintenance window is arranged on the cover body.

[0025] By setting the above structure, it is convenient for later maintenance and repair.

[0026] Advantages of the present invention: 1. By setting the partition board and the non-pressure area in the present invention, the scraping mechanism is arranged below the negative pressure area. After the belt screen enters the non-pressure area, the adsorption force between the cut tobacco and the belt screen weakens, and part of the cut tobacco automatically detaches from the belt screen. For the cut tobacco that cannot automatically detach from the belt screen, it can be easily scraped off by the scraping mechanism, improving the scraping effect of the scraping mechanism on the belt screen.

[0027] 2. By setting the vibration mechanism in the present invention, after the vibration mechanism knocks on the belt screen, the vibration of the belt screen can make some of the small sundries adsorbed on the belt screen that cannot be scraped off fall off, further improving the cleaning effect of the belt screen.

[0028] 3. By setting the mounting bracket, the mounting plate and the knocking member in the present invention, during the rotation of the belt screen, the mounting plate can be driven to translate and rotate, realizing the driving of the mounting plate without setting an independent driving device, reducing the cost.

[0029] 4. By setting the fan blades in the present invention, after the knocking member knocks on the belt screen, the fan blades rotate close to the knocking member. During the rotation of the fan blades, air flow is generated to blow the sundries knocked off by the knocking member away from the belt screen, improving the cleaning effect. Description of the Drawings

[0030] Figure 1is a schematic structural diagram of an automatic filtering and moisture exhausting hood of the present invention; Figure 2 is a schematic sectional structure diagram of an automatic filtering and moisture exhausting hood of the present invention; Figure 3 is Figure 2 an enlarged structural diagram of A in Figure 4 is a schematic cooperation structure diagram of a scraping mechanism, a vibration mechanism and a belt sieve in an automatic filtering and moisture exhausting hood of the present invention; Figure 5 is a disassembled structural diagram of a vibration mechanism in an automatic filtering and moisture exhausting hood of the present invention; Among them, 1. vibrating conveyor; 2. hood body; 21. partition board; 22. non-pressure area; 23. negative pressure area; 24. inspection window; 3. belt sieve; 31. inner layer area; 4. first driving assembly; 41. driving motor; 42. driving roller; 43. driven roller; 5. scraping mechanism; 51. scraper; 52. dust collecting hood; 53. dust collecting box; 6. vibration mechanism; 61. second driving assembly; 611. mounting bracket; 61^{2}. shaft body; 62. knocking member; 621. knocking end; 622. connecting end; 623. through groove; 63. mounting plate; 631. mounting groove; 632. assembly groove; 64. fan blade; 641. counterweight block; 71. translation section; 72. rotating end. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Such as Figures 1 - 5As shown in the figure, an automatic filtering and moisture exhausting hood of the present invention includes a hood body 2 disposed above a vibrating conveyor 1. A filtering mechanism is arranged inside the hood body 2. The filtering mechanism includes a belt screen 3 and a first driving assembly 4. The first driving assembly 4 includes a driving motor 41, a driving roller 42 and a driven roller 43. The driving roller 42 and the driven roller 43 are both rotatably installed inside the hood body 2. The driving roller 42 and the driven roller 43 are respectively arranged on both sides inside the hood body 2. The belt screen 3 is tensioned between the driving roller 42 and the driven roller 43. The driving motor 41 is fixedly installed outside the hood body 2, and the driving motor 41 is in transmission connection with the driving roller 42 through a gearbox. When the driving motor 41 works, it drives the belt screen 3 to rotate. A scraping mechanism 5 is arranged at the bottom of the belt screen 3. A partition 21 is arranged inside the hood body 2. The partition 21 divides the inside of the hood body 2 into a non-pressure area 22 and a negative-pressure area 23. The belt screen 3 is arranged below the partition 21, and the scraping mechanism 5 is arranged below the negative-pressure area 23. During operation, after the belt screen 3 enters the non-pressure area 22, the adsorption force between the cut tobacco and the belt screen 3 weakens, and part of the cut tobacco automatically detaches from the belt screen 3. For the part of the cut tobacco that cannot automatically detach from the belt screen 3, it can be easily scraped off by the scraping mechanism 5, improving the scraping effect of the scraping mechanism 5 on the belt screen 3.

[0033] In this embodiment, the scraping mechanism 5 includes a scraper 51. The scraper 51 is fixedly installed inside the hood body 2. A vibration mechanism 6 is arranged at the top of the scraper 51. The vibration mechanism 6 is used to strike the belt screen 3. After the vibration mechanism 6 strikes the belt screen 3, the vibration of the belt screen 3 can make some small sundries adsorbed on the belt screen 3, such as tobacco dust and dust, fall off, further improving the cleaning effect of the belt screen 3. In this embodiment, a guiding inclined surface is arranged on one side of the scraper 51 close to the negative-pressure area 23, so that the detached cut tobacco can fall back onto the vibrating conveyor 1 through the guiding inclined surface.

[0034] In this embodiment, the vibration mechanism 6 includes a second driving assembly 61 and a striking member 62. The belt screen 3 forms an inner layer area 31. The striking member 62 is movably arranged inside the inner layer area 31. The second driving assembly 61 is in transmission connection with the striking member 62. When the striking member 62 strikes the belt screen 3 on the bottom surface of the inner layer area 31, the belt screen 3 vibrates. In some other embodiments, the vibration mechanism 6 can also be directly arranged below the belt screen 3. In this embodiment, by arranging the striking member 62 inside the inner layer area 31, the striking member 62 strikes the belt screen 3 on the bottom surface of the inner layer area 31 from top to bottom, so that the small sundries on the belt screen 3 fall downward, facilitating the detachment of the small sundries from the belt screen 3 and preventing the sundries from entering the first driving assembly 4 and affecting the normal operation of the first driving assembly 4.

[0035] In this embodiment, the vibration mechanism 6 also includes a mounting plate 63, which is rotatably assembled in the cover body 2, and the second drive assembly 61 is transmission-connected to the mounting plate 63. A mounting groove 631 is provided on the mounting plate 63, and the knocking member 62 includes a knocking end 621 and a connecting end 622. The connecting end 622 is rotatably installed in the mounting groove 631. When the mounting plate 63 rotates from a vertical state toward the belt screen 3 on the bottom surface of the inner layer area 31, the knocking member 62 is rotated out of the mounting groove 631 to knock the belt screen 3. Specifically, when the mounting plate 63 is in a vertical state, the connecting end 622 of the knocking member 62 is located below the knocking end 621. In some other embodiments, the knocking of the belt screen 3 by the knocking member 62 can be achieved by controlling the reciprocating rotation of the second drive component 61. In this embodiment, the connecting end 622 of the knocking member 62 is rotatably connected to the mounting plate 63. When the mounting plate 63 is rotated from a vertical state toward the belt screen 3 on the bottom surface of the inner area 31, the knocking member 62 relies on its own gravity to rotate out of the mounting groove 631 and knock the belt screen 3. There is no need to reciprocate the mounting plate 63. The second drive component 61 drives the mounting plate 63 to rotate in the rotation direction of the belt screen 3, thereby effectively reducing the difficulty of driving and controlling the mounting plate 63.

[0036] In this embodiment, mounting grooves 631 are provided on both sides of the mounting plate 63 , and two knocking members 62 are provided. The two knocking members 62 are rotatably installed in the two mounting grooves 631 respectively, thereby increasing the knocking frequency of the vibration mechanism 6 .

[0037] In this embodiment, the second drive assembly 61 includes a mounting bracket 611. A redundant slot is provided at the position of the housing 2 corresponding to the mounting bracket 611 to facilitate installation of the mounting bracket 611. The mounting bracket 611 is fixedly mounted within the housing 2. A shaft 612 is fixedly provided on the mounting bracket 611. A mounting plate 63 is provided with an assembly slot 632. The mounting plate 63 is rotatably assembled on the shaft 612 through the assembly slot 632. The outer surface of the mounting plate 63 is in close contact with the belt screen 3 on the bottom surface of the inner layer area 31. The assembly slot 632 includes a translation section 71 and a rotating end 72 provided at both ends of the translation section 71. When the shaft 612 is located within the translation section 71 of the assembly slot 632, the belt screen 3 drives the mounting plate 63 to move horizontally. When the shaft 612 is located within the rotating end 72 of the assembly slot 632, the belt screen 3 drives the mounting plate 63 to rotate about the shaft 612. In other embodiments, the mounting plate 63 can be driven to rotate by an independent drive device. In this embodiment, by placing the mounting plate 63 in close contact with the belt screen 3, the belt screen 3 can drive the mounting plate 63 to translate and rotate during its rotation, thereby driving the mounting plate 63 without the need for a separate drive device, thereby reducing costs. Furthermore, when the knocking member 62 strikes the belt screen 3, the knocking member 62 can block the area above the belt screen 3, further preventing the shaken debris from being re-adsorbed onto the belt screen 3.

[0038] In this embodiment, a fan blade 64 is provided on one side of the knocking member 62 close to the inner wall of the installation groove 631. Both ends of the fan blade 64 are rotatably installed in the installation groove 631. A counterweight 641 is fixedly provided on the top of the fan blade 64. When the mounting plate 63 rotates from the vertical state to the bottom surface of the belt screen 3 in the inner layer area 31, the spinning speed of the knocking member 62 is greater than that of the fan blade 64. After the knocking member 62 knocks on the belt screen 3, the fan blade 64 rotates close to the knocking member 62. During the rotation of the fan blade 64, air flow is generated to blow the sundries knocked off by the knocking member 62 away from the belt screen 3, improving the cleaning effect.

[0039] In this embodiment, a plurality of through grooves 623 are formed in the knocking member 62, and the air flow generated by the rotation of the fan blade 64 can blow through the through grooves 623 to the area below the knocking member 62, further improving the cleaning effect.

[0040] In this embodiment, a dust collection hood 52 is fixedly provided on one side of the scraping plate 51, and a dust collection box 53 is fixedly installed below the dust collection hood 52, which can collect sundries for cleaning during later maintenance.

[0041] In this embodiment, the mounting bracket 611 is fixedly connected to the dust collection hood 52, facilitating the disassembly and assembly of the vibration mechanism 6 during later maintenance.

[0042] In this embodiment, a maintenance window 24 is provided on the housing 2, facilitating later maintenance and repair.

[0043] The working principle of the present invention is as follows: The housing 2 generates negative pressure through an external negative pressure device to suck the cut tobacco material on the vibrating conveyor 1. Some lighter cut tobacco, sundries, etc. are sucked away from the vibrating conveyor 1 and intercepted by the belt screen 3 in the housing 2.

[0044] The driving motor 41 works to drive the belt screen 3 to rotate through the driving roller 42 and the driven roller 43. During the rotation of the belt screen 3, the cut tobacco and sundries intercepted and adsorbed on the belt screen 3 are carried to the scraping mechanism 5 and the vibration mechanism 6 in the non-pressure area 22.

[0045] After the belt screen 3 enters the non-pressure area 22, the adsorption force between the cut tobacco and the belt screen 3 weakens. Some cut tobacco automatically detaches from the belt screen 3, and some cut tobacco that cannot automatically detach from the belt screen 3 is scraped off by the scraping plate 51 of the scraping mechanism 5.

[0046] During the rotation of the belt screen 3, when the shaft body 612 is located in the translation section 71 of the assembly groove 632, the belt screen 3 drives the mounting plate 63 to move horizontally. When the shaft body 612 is located in the rotation end 72 of the assembly groove 632, the belt screen 3 drives the mounting plate 63 to rotate with the shaft body 612 as the rotation axis.

[0047] During the rotation of the mounting plate 63, when the mounting plate 63 rotates from the vertical state to the belt screen 3 on the bottom surface of the inner layer region 31, first, the knocking member 62 rotates out of the mounting groove 631 by its own gravity and knocks on the belt screen 3, so that some of the adsorbed substances on the belt screen 3 cannot be scraped to make small sundries fall. Subsequently, under the gravity of the counterweight 641, the fan blade 64 rotates out of the mounting groove 631 and approaches the knocking member 62. During the rotation of the fan blade 64, an air flow is generated to blow the sundries knocked off by the knocking member 62 away from the belt screen 3.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention. The technologies, shapes, and structures not described in detail in the present invention are all well-known technologies.

Claims

1. An automatic filtering and moisture exhausting hood, comprising a hood body (2) arranged above a vibrating conveyor (1), a filtering mechanism is arranged inside the hood body (2), the filtering mechanism comprises a belt sieve (3) and a first driving assembly (4), a scraping mechanism (5) is arranged at the bottom of the belt sieve (3), and it is characterized in that, A partition plate (21) is arranged inside the cover body (2). The partition plate (21) divides the inside of the cover body (2) into a non-pressure area (22) and a negative-pressure area (23). The belt screen (3) is arranged below the partition plate (21), and the scraping mechanism (5) is arranged below the negative-pressure area (23).

2. The automatic filtering and moisture exhausting hood according to claim 1, wherein The scraping mechanism (5) includes a scraping plate (51). The scraping plate (51) is fixedly installed inside the cover body (2). A vibration mechanism (6) is arranged at the top of the scraping plate (51), and the vibration mechanism (6) is used to strike the belt screen (3).

3. The automatic filtering and moisture exhausting hood according to claim 2, wherein, The vibration mechanism (6) includes a second driving component (61) and a striking piece (62). The belt screen (3) forms an inner layer area (31). The striking piece (62) is movably arranged inside the inner layer area (31). The second driving component (61) is in transmission connection with the striking piece (62). When the striking piece (62) strikes the belt screen (3) at the bottom surface of the inner layer area (31), the belt screen (3) vibrates.

4. The automatic filtering and moisture exhausting hood according to claim 3, wherein, The vibration mechanism (6) further includes a mounting plate (63). The mounting plate (63) is rotationally assembled inside the cover body (2). The second driving component (61) is in transmission connection with the mounting plate (63). A mounting groove (631) is formed in the mounting plate (63). The striking piece (62) includes a striking end (621) and a connecting end (622). The connecting end (622) is rotatably installed in the mounting groove (631). When the mounting plate (63) rotates from the vertical state towards the belt screen (3) at the bottom surface of the inner layer area (31), the striking piece (62) rotates out of the mounting groove (631) to strike the belt screen (3).

5. The automatic filtering and moisture exhausting hood according to claim 4, wherein The second driving component (61) includes a mounting bracket (611). The mounting bracket (611) is fixedly assembled inside the cover body (2). A shaft body (612) is fixedly arranged on the mounting bracket (611). The mounting plate (63) is provided with an assembly groove (632). The mounting plate (63) is rotationally assembled on the shaft body (612) through the assembly groove (632). The outer surface of the mounting plate (63) is in close contact with the belt screen (3) at the bottom surface of the inner layer area (31). The assembly groove (632) includes a translation section (71) and rotation ends (72) arranged at both ends of the translation section (71). When the shaft body (612) is located in the translation section (71) of the assembly groove (632), the belt screen (3) drives the mounting plate (63) to move horizontally. When the shaft body (612) is located in the rotation end (72) of the assembly groove (632), the belt screen (3) drives the mounting plate (63) to rotate with the shaft body (612) as the rotation axis.

6. The automatic filtering and moisture exhausting hood according to claim 4, wherein, A fan blade (64) is arranged on one side of the striking piece (62) close to the inner wall of the mounting groove (631). Both ends of the fan blade (64) are rotatably installed in the mounting groove (631). A counterweight block (641) is fixedly arranged at the top of the fan blade (64). When the mounting plate (63) rotates from the vertical state towards the belt screen (3) at the bottom surface of the inner layer area (31), the rotation speed of the striking piece (62) when it rotates out is greater than the rotation speed of the fan blade (64) when it rotates out.

7. The automatic filtering and moisture exhausting hood according to claim 6, characterized in that, A plurality of through grooves (623) are formed in the knocking member (62).

8. An automatic filtering and moisture exhaust hood according to claim 5, characterized in that, A dust collecting hood (52) is fixedly arranged on one side of the scraping plate (51), and a dust collecting box (53) is fixedly installed below the dust collecting hood (52).

9. The automatic filtering and moisture exhausting hood according to claim 8, characterized in that The mounting bracket (611) is fixedly connected to the dust collecting hood (52).

10. The automatic filtering and moisture exhausting hood according to claim 1, wherein An inspection window (24) is arranged on the housing (2).

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