A carton conveying line cleaning and dust prevention system

Abstract

The present application relates to the technical field of cigarette conveying in a packing plant, and discloses a cigarette conveying line cleaning and dustproof system, which comprises a first cleaning and dustproof unit arranged at the front section of a vertical lifting line and a second cleaning and dustproof unit arranged on a horizontal high-altitude conveying line. The first cleaning and dustproof unit comprises a high-pressure air cleaning mechanism and a lifting brush cleaning mechanism, and the second cleaning and dustproof unit comprises a cleaning module, a scraper module and a dust removal module. The high-pressure air cleaning mechanism is used for cleaning the belt surface, and the lifting brush cleaning mechanism is used for cleaning the rollers on the cigarette conveying belt. The cleaning module is used for cleaning the belt surface again, the scraper in the scraper module continuously cleans the horizontal conveying belt and the rotating roller brush, and the dust removal module is used for cleaning and collecting cigarette foam dust in cooperation with the cleaning module. When the cigarette conveying belt is working, the present application can ensure the cleaning effect and save the labor cost.

Description

Technical Field

[0001] This invention relates to the field of cigarette pack conveying technology in cigarette packaging workshops, and specifically to a cleaning and dust prevention system for cigarette pack conveying lines. Background Technology

[0002] The cigarette packing workshop's cigarette pack conveyor line operates as follows: cigarette packs, packaged by the packaging machine, are first lifted vertically to a horizontal aerial conveyor line, then lowered to a cigarette pack collector. After passing through a cigarette pack appearance detector, qualified cigarette packs are sealed in boxes and stored. Since multiple machines typically operate simultaneously in the packaging workshop, the distance from the first cigarette pack sealing machine to the box sealing machine is considerable, often exceeding 100 meters in length. This necessitates the horizontal aerial conveyor line's ability to handle long-distance transport. Currently, a multi-segment operation is employed. The working principle involves multiple motors driving conveyor belts to circulate around the conveyor track, operating in multiple segments and transferring cigarette packs segment by segment. Because cigarette factories generally operate on a four-shift, three-rotation production model, after the night shift, the cleaning team uses high-pressure air to clean the cigarette equipment and the workshop environment.

[0003] The following problems currently exist:

[0004] 1. When cleaning and maintaining the exterior and interior of the cigarette packing equipment, the internal design is quite compact, making it difficult to thoroughly clean dust using negative pressure suction. High-pressure air is the only option. The fine dust particles blown out by this high-pressure air remain suspended in the air above the workshop and gradually fall over time. Before the early shift, the conveyor belt inevitably accumulates a lot of dust and soot. This soot contains moisture and is sticky, easily contaminating the appearance of the cigarette packs and severely affecting product quality. The first batch of cigarettes produced at the packing machine needs to be manually cleaned with towels, which is time-consuming and labor-intensive.

[0005] 2. For the vertical lifting line section, manual cleaning of the cigarette sticks with towels is required at the start of production. In severe cases, this can affect the rolling of the rollers on the conveyor belt, causing cigarette sticks to get stuck or blocked during the lifting process.

[0006] 3. For the horizontal high-altitude conveyor line, since the cigarette pack conveying distance is relatively long, multiple conveyor belts usually work together. At the same time, the high-altitude conveyor belt in the rolling and packaging workshop is located at the top of the workshop, usually at a height of 3 to 4 meters. When cleaning, it is necessary to manually use a mobile ladder and then use a cloth to clean the conveyor belt section by section. Since each section needs to be cleaned manually, the whole process is time-consuming and labor-intensive.

[0007] 4. The horizontal high-altitude conveyor line is currently cleaned by air gun blowing. During cleaning, smoke and dust will spread into the surrounding air, inevitably polluting the production environment around the machine and causing serious production quality hazards to the appearance of cigarette sticks and cigarette packs.

[0008] In view of the above problems, the inventors of this invention have finally obtained this invention after a long period of research and practice. Summary of the Invention

[0009] To solve the above-mentioned technical problems, the present invention provides a cleaning and dust prevention system for a smoke conveyor line, which saves labor costs while ensuring cleaning effect.

[0010] The technical solution adopted in this invention is as follows:

[0011] A cleaning and dust prevention system for a cigarette conveyor line is provided, which is installed on the cigarette conveyor line, which includes a vertical lifting line and a horizontal high-altitude conveyor line. The cleaning and dust prevention system for the cigarette conveyor line includes a first cleaning and dust prevention unit installed in the front section of the vertical lifting line and a second cleaning and dust prevention unit installed on the horizontal high-altitude conveyor line.

[0012] The first cleaning and dust prevention unit includes a high-pressure air cleaning mechanism and a lifting brush cleaning mechanism. The high-pressure air cleaning mechanism includes a cleaning seat positioned directly above the lifting conveyor belt. The cleaning seat has an air chamber connected to an air source, and the bottom of the cleaning seat has multiple small air holes connected to the air chamber. The lifting brush cleaning mechanism includes a cylinder and a brush seat. The brush seat is positioned directly above the lifting conveyor belt, and the cylinder is fixed to the side of the lifting conveyor belt. The piston rod of the cylinder is connected to the brush seat to adjust the height of the brush seat. A brush body is detachably installed at the bottom of the brush seat, and the brush body is used to clean the rollers on the lifting conveyor belt.

[0013] The second cleaning and dust prevention unit includes a cleaning module, a scraper module, and a dust removal module. The cleaning module includes a roller brush, and the scraper module includes a scraper. The dust removal module includes a negative pressure generator, a blowing duct, and a suction duct. The air inlet of the negative pressure generator is connected to an air source through an air inlet pipe, the vacuum port is connected to the suction duct, and the exhaust silencer port is connected to the blowing duct. The front end of the blowing duct has multiple air outlets, and the front end of the suction duct has multiple air inlet holes. The roller brush, the scraper, the blowing duct, and the suction duct are all located directly below the horizontal conveyor belt. The roller brush and the scraper are in contact with the lower surface of the horizontal conveyor belt, and the scraper is in contact with the roller brush. The blowing duct and the suction duct are close to the scraper, and the blowing duct is located above the suction duct.

[0014] Furthermore, during its movement, the lifting conveyor belt first passes through the high-pressure air cleaning mechanism, and then through the lifting brush cleaning mechanism.

[0015] Furthermore, the dust control system for the smoke conveyor line also includes a dust collection box located below the horizontal conveyor belt, the dust collection box surrounding the roller brush, the scraper, the blowing pipe and the suction pipe.

[0016] Furthermore, the dust removal module also includes a primary filter, a secondary filter, and a control valve; the vacuum port of the negative pressure generator is connected to the primary filter between the vacuum port and the suction pipe, and the exhaust silencer port of the negative pressure generator is connected to the secondary filter between the exhaust pipe and the blowing pipe; the control valve is installed on the air inlet pipe.

[0017] Furthermore, the horizontal aerial conveyor line has a multi-segment structure, with each segment conveying unit sequentially transmitting and conveying the smoke bar, and each segment conveying unit is equipped with a second cleaning and dustproof unit;

[0018] Furthermore, the horizontal aerial conveyor line has multiple parallel conveyor tracks, each of which has a circulating horizontal conveyor belt. The number of roller brushes on the cleaning module is the same as the number of horizontal conveyor belts. Each roller brush is positioned below a horizontal conveyor belt, and the rolling direction of the roller brush is opposite to the movement direction of the horizontal conveyor belt.

[0019] Furthermore, the number of scrapers in the scraper module is the same as the number of roller brushes, with each scraper corresponding to one roller brush.

[0020] Furthermore, the cleaning module also includes a fixed bracket, a lifting bracket, a rotating shaft, and a motor. The fixed bracket is fixed to both side plates of the horizontal aerial conveyor line. The lifting bracket is adjustable up and down and is mounted on the fixed bracket. The lower end of the lifting bracket is rotatably connected to the rotating shaft. The motor is used to drive the rotating shaft to rotate. A keyway is provided along the axial direction on the surface of the rotating shaft. A flat key is installed in the shaft hole of the roller brush. The flat key is inserted into the keyway and fixed by bolts.

[0021] Furthermore, the lifting bracket has kidney-shaped holes on both sides, and the first adjusting bolt passes through the kidney-shaped holes and is fixedly connected to the fixed bracket; the fixed bracket has a fixed plate at the top, and the lifting bracket has a lifting plate at the top, and the second adjusting bolt passes through the lifting plate and abuts against the fixed plate.

[0022] Furthermore, the brush holder is provided with a slot and a threaded hole, the top of the brush body is provided with an insert plate that mates with the slot, and the top of the cylinder piston rod has a threaded head that mates with the threaded hole.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] This invention features a cleaning module. During the early shift, while the cigarette pack conveyor belt is in operation, the roller brush within the module continuously cleans the horizontal conveyor belt, removing tobacco dust and debris. This ensures the cleanliness of the conveyor belt, resulting in a neat appearance of the cigarette packs and improving production quality. A scraper module further enhances the cleaning effect, providing a secondary cleaning process by continuously cleaning both the conveyor belt and the rotating roller brush. This also ensures the cleanliness of the brush head. Installing this device on every section of the cigarette pack conveyor belt replaces manual labor with mechanical equipment, saving on labor costs while maintaining cleaning effectiveness. Furthermore, a lifting bracket indirectly controls the raising and lowering of the roller brush. Based on the brush head's working time and wear level, the working position of the brush head can be adjusted promptly to maintain consistent cleaning performance. Finally, by designing a dust collection box that covers the entire device, the brushed smoke and dust no longer spread widely but are instead collected within the dust collection box. Simultaneously, by designing a dust removal module, the blowing and suction pipes within the module can clean and extract the smoke and dust, which is then collected in the filter canister, improving the overall cleaning capability of the system. For the vertical lifting line section, a high-pressure air cleaning mechanism and a lifting brush cleaning mechanism were designed. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 A schematic diagram of the installation structure of the first cleaning and dust prevention unit and the vertical lifting line according to an embodiment of the present invention is shown;

[0027] Figure 2 A schematic diagram of the structure of the first cleaning and dustproof unit according to an embodiment of the present invention is shown;

[0028] Figure 3 A schematic diagram of the cleaning seat of a high-pressure air cleaning mechanism according to an embodiment of the present invention is shown;

[0029] Figure 4 A schematic diagram of the brush holder of the lifting brush cleaning mechanism according to an embodiment of the present invention is shown;

[0030] Figure 5 A top view of the mounting structure of the second cleaning and dust prevention unit and the dust collection box according to an embodiment of the present invention is shown;

[0031] Figure 6A bottom view of the mounting structure of the second cleaning and dustproof unit according to an embodiment of the present invention is shown;

[0032] Figure 7 A schematic diagram of the cleaning module according to an embodiment of the present invention is shown;

[0033] Figure 8 A schematic diagram of the scraper module according to an embodiment of the present invention is shown;

[0034] Figure 9 A left view of the mounting structure of the second cleaning and dustproof unit according to an embodiment of the present invention is shown;

[0035] Figure 10 A right view of the mounting structure of the second cleaning and dustproof unit according to an embodiment of the present invention is shown;

[0036] Figure 11 A rear view of the mounting structure of the second cleaning and dustproof unit according to an embodiment of the present invention is shown;

[0037] Figure 12 A schematic diagram of the dust removal module according to an embodiment of the present invention is shown;

[0038] Figure 13 A front view schematic diagram of a dust removal module according to an embodiment of the present invention is shown. Detailed Implementation

[0039] The above-mentioned and other technical features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.

[0040] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, unless otherwise explicitly specified.

[0042] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] The cigarette pack conveyor line in the packaging workshop includes a vertical lifting line and a horizontal aerial conveyor line. The cigarette packs packaged by the packaging machine are lifted by the vertical lifting line to the horizontal aerial conveyor line, and then transported by the horizontal aerial conveyor line.

[0044] like Figures 1-4 As shown, the vertical lifting line includes a cigarette pack lifting conveyor belt track 11, within which a circulating lifting conveyor belt 12 is installed. Several rollers 13 are fixed on each lifting conveyor belt 12, with the distance between two adjacent rollers 13 being the length of one and a half cigarette packs. Cigarette packs exiting the packaging machine enter the space between adjacent rollers 13 on the lifting conveyor belt 12 at any position, and are conveyed forward to the vertical starting position. The rollers 13 support the rear end of the cigarette pack and lift it into the horizontal high-altitude conveyor line. A first cleaning and dust prevention unit is installed in the front section of the vertical lifting line (before entering the vertical section). The first cleaning and dust prevention unit includes a high-pressure air cleaning mechanism 1 and a lifting brush cleaning mechanism 2. The high-pressure air cleaning mechanism 1 includes a cleaning seat positioned directly above the lifting conveyor belt 12. The cleaning seat has an air chamber connected to an air source, and the bottom of the cleaning seat has multiple small air holes connected to the air chamber. The lifting brush cleaning mechanism includes a cylinder 201 and a brush holder 203. The brush holder is positioned directly above the lifting conveyor belt, and the cylinder is fixed to the side of the lifting conveyor belt. The piston rod of the cylinder is connected to the brush holder to adjust its height. A brush body 202 is detachably mounted on the bottom of the brush holder. The brush body is used to clean the rollers 13 on the lifting conveyor belt. The lifting brush cleaning mechanism 2 is positioned in front of the high-pressure air cleaning mechanism 1, meaning that the lifting conveyor belt passes through the high-pressure air cleaning mechanism 1 first, and then the lifting brush cleaning mechanism 2.

[0045] The high-pressure air cleaning mechanism 1 is used to clean the surface of the lifting conveyor belt 12, and the lifting brush cleaning mechanism 2 is used to clean the rollers on the lifting conveyor belt 12. Specifically, the high-pressure air cleaning mechanism 1 includes a cleaning seat and a support frame. An air chamber is horizontally arranged inside the cleaning seat. A blind hole 101 is formed by penetrating one side of the air chamber through the side of the cleaning seat. Small air holes 102 are evenly distributed at the bottom of the cleaning seat facing the belt surface, and these small air holes 102 communicate with the air chamber. The main body of the cleaning seat is "L"-shaped, with a blind hole 101 at the downward-curved arm section that can connect to a high-pressure air pipe (air source). A row of small air holes 102 is located below the air chamber, allowing the high-pressure air entering the air chamber 101 to be quickly blown out onto the lifting conveyor belt 12. The cleaning seat is fixed to the lifting conveyor belt track 11 by the support frame. The support frame has vertical kidney holes 103, through which bolts pass to connect to the side wall of the lifting conveyor belt track 11, allowing the support frame to be adjusted vertically, thus making the height of the cleaning seat adjustable.

[0046] In this embodiment, the cylinder 201 of the lifting brush cleaning mechanism 2 is installed on the outer side of the cigarette lifting conveyor belt 11. A brush seat 203 corresponding to the roller 13 is detachably installed on the top of the cylinder 201. Brush bodies 202 for cleaning the roller 13 are evenly distributed on the brush seat 203. The brush body 202 is a nylon brush with the same width as the roller 13 on the lifting conveyor belt 12. Specifically, a slot 204 is opened on the side of the brush seat 203, and an insert plate that cooperates with the slot is provided on the top of the brush body 202. The insert plate is inserted into the slot 204. A threaded hole 205 is opened at the bottom of the brush seat 203, and the top of the piston rod of the cylinder 201 has a threaded head that cooperates with the threaded hole for disassembly and assembly.

[0047] like Figures 5-13 As shown, the horizontal aerial conveyor line has multiple parallel conveyor tracks 8, each containing a horizontally rotating conveyor belt 9. A second cleaning and dust control unit is provided on the horizontal aerial conveyor line, comprising a cleaning module 4, a scraper module 5, and a dust removal module 10. The cleaning module 4 includes a roller brush 402, and the scraper module 5 includes a scraper 502. The dust removal module 10 includes a negative pressure generator 1004, a blowing duct 1007, and a suction duct 1008. The air inlet of the negative pressure generator 1004 is connected to an air source via an air inlet pipe 1001, the vacuum port is connected to the suction duct, and the exhaust silencer port is connected to the blowing duct. The front end of the blowing duct 1007 has multiple air outlets 1009, and the front end of the suction duct 1008 has multiple suction holes 1010. The roller brush 402, scraper 502, blowing duct 1007 and suction duct 1008 are all located directly below the horizontal conveyor belt 9. The roller brush 402 and scraper 502 are in contact with the horizontal conveyor belt 9, and the scraper 502 is in contact with the roller brush 402. The blowing duct 1007 and suction duct 1008 are close to the scraper 502, and the blowing duct 1007 is located above the suction duct 1008.

[0048] In this embodiment, the cleaning module 4 further includes a bracket 7, a rotating shaft 401, and a drive mechanism 6. The drive mechanism 6 includes a motor 601, and the bracket 7 includes a fixed bracket 701 and a lifting bracket 702. The fixed bracket 701 is installed on the side wall of the conveyor track 8, and the lifting bracket 702 is installed on the fixed bracket 701 in an adjustable manner. A roller brush 402 for cleaning the surface of the belt is installed on the lifting bracket 702. The lower end of the lifting bracket 702 is rotatably connected to the rotating shaft 401. The motor 601 is used to drive the rotating shaft 401 to rotate. A keyway 407 is provided axially on the surface of the rotating shaft 401. A flat key 406 is installed in the shaft hole of the roller brush 402. The flat key 406 is inserted into the keyway 407 and fixed by bolts 408. The lifting bracket 702 has kidney-shaped holes on both sides. A first adjusting bolt passes through these holes and is fixedly connected to a fixed bracket 701. A fixed plate 705 is located on the top of the fixed bracket 701, and a lifting plate 704 is located on the top of the lifting bracket 702. A second adjusting bolt 703 passes through the lifting plate 704 and abuts against the fixed plate 705. The second adjusting bolt 703 is used to adjust the height of the lifting bracket 702. A fixed nut and a lifting nut are threaded onto the second adjusting bolt 703. The lifting plate 704 is located between the fixed nut and the lifting nut. The cleaning module 4 also includes bearings 409 and 403, bearing cover 404, coupling 405, and pressure cover 410. Bearing cover 404 and pressure cover 410 are installed on both sides of the bottom of the lifting bracket 702 in a horizontally opposite direction. Bearings 409 and 403 are installed inside the bearing cover 404 and pressure cover 410. A rotating shaft 401 is installed inside the two opposite bearings 409 and 403. A coupling 405 for connecting the motor 601 is installed on the rotating shaft 401 extending outward along one side of the pressure cover 410.

[0049] Specifically, the left end of the rotating shaft 401 is bolted to the bearing 409 via a pressure cap 410, and the right end is connected to the rotating shaft 602 of the motor 601 via a coupling 405, and is driven to rotate by the motor 601. The rotating shaft 401 at the left end of the coupling 405 passes through the bearing 403, and the bearings 403 and 409 are pressed together by a bearing cover 404. The lifting bracket 702 is detachably fixed to the side transverse groove of the conveyor track 8 by bolts. A bearing seat is provided at the bottom of the lifting bracket 702, and a bearing is placed in the bearing seat. The bearing is fixed by a bearing cover. The motor support 603 of the motor 601 is fixed to the motor bracket 604. The main body of the motor bracket 604 is detachably fixed to the side transverse groove of the conveyor track 8 by bolts. The rotation direction of the motor shaft 602 is opposite to the direction of the horizontal conveyor belt 9 at the bottom of the conveyor track 8. The brush head of the roller brush 402 acts on the lower side of the horizontal conveyor belt 9. The number of roller brushes 402 is the same as the number of horizontal conveyor belts 9. Each roller brush 402 is set below a horizontal conveyor belt 9, and the rolling direction of the roller brush 402 is opposite to the movement direction of the horizontal conveyor belt.

[0050] A scraper module 5 for cleaning the lower surface of the horizontal conveyor belt is installed at the bottom of the cigarette pack conveyor belt. The scraper module 5 includes a scraper support 501, a scraper 502, bolts 503, and a scraper holder 504. The scraper holder 504 is fixedly installed on the side of the conveyor track 8. A horizontal scraper support 501 is bolted to the scraper holder 504, and a wedge-shaped scraper 502 is bolted to the scraper support 501. Specifically, the scraper support 501 is an elongated block with the same length as the rotating shaft 401. Both ends of the scraper support 501 are detachably fixed to the scraper holder 504. The scraper holder 504 is fixed on both sides of the conveyor track 8. Several scrapers 502 are detachably mounted on the scraper support 501, and each scraper 502 acts on a roller brush 402.

[0051] A dust collection box 3 is provided below the horizontal conveyor belt 9. The dust collection box 3 is a stainless steel plate with an open top, which is welded to the dust removal frame 1011. The dust removal frame 1011 is detachably fixed to the side cross groove of the track 11 of the smoke bar conveyor belt 12 by bolts. The dust collection box 3 is located below the cleaning module 4. Preferably, the dust collection box 3 surrounds the roller brush 402, scraper 502, blowing pipe 1007 and suction pipe 1008.

[0052] The dust removal module 10 includes an air inlet pipe 1001, a primary filter 1002, a control valve 1003, a negative pressure generator 1004, a secondary filter 1006, a blowing pipe 1007, and a suction pipe 1008. The air inlet of the negative pressure generator 1004 is connected to the air inlet pipe 1001. The control valve 1003 is connected to the air inlet pipe 1001. The vacuum port is connected to the primary filter 1006, and the exhaust silencer port is connected to the secondary filter 1006. The primary filter 1002 is connected to the suction pipe 1008. Suction holes 1010 are evenly distributed on the front side of the suction pipe 1008. The secondary filter 1006 is connected to the blowing pipe 1007. Air outlet holes 1009 are evenly distributed on the front side of the blowing pipe 1007.

[0053] Specifically, the air inlet of the negative pressure generator 1004 is connected to the air inlet pipe 1001, the vacuum port is connected to the disposable filter 1002, and the exhaust silencer port is connected to the secondary filter 1006. The primary filter 1002 is connected to the suction pipe 1008, and the secondary filter 1006 is connected to the blowing pipe 1007. A control valve 1003 is connected to the air inlet pipe 1001. The control valve 1003 is a control valve with a pressure gauge. All pipes of the dust removal module 10 are fixed to the dust removal frame 1011 by fixing clips 1005. The air duct 1007 has several air outlet holes 1009 at its front end, and the air intake duct 1008 has several air intake holes 1010 at its front end. Both the air duct 1007 and the air intake duct 1008 are fixed to the scraper holder 504. The filter canister consists of a filter canister end cap, a filter element, and a filter canister body. The filter canister end cap is connected to the filter canister body by threads. The top and sides of the filter canister end cap have holes for connecting the pipes. The filter element is a cylindrical hollow filter element, which can be inserted into the filter canister end cap and filter canister body at the top and bottom during installation. The rotating shaft bracket 411, the motor bracket 604, and the scraper holder 504 all have recessed holes, which can be used to adjust the brackets in the vertical direction and then fix them with bolts.

[0054] In one specific embodiment, the roller brush 402 compresses the conveyor belt by 0.5–1 mm during operation. The motor is a JGB37-545 DC geared motor. The motor bracket 604 has two recessed holes, each secured with a bolt. The fixed bracket 701 has a U-shaped side, with each of its two bottom ends secured with a bolt. The lifting bracket 702 has a lifting height of 10–20 mm.

[0055] The working process of the cleaning and dust prevention system of the present invention:

[0056] When the early shift operator powers on the equipment, the lifting conveyor belt 12 starts rotating under the control of the PLC program. At this time, the PLC controls a two-position two-way solenoid valve to open, and high-pressure air enters the air chamber of the high-pressure air cleaning mechanism 1. The air is then blown onto the lifting conveyor belt 12 below through a row of small air holes 102 in the air chamber, cleaning the smoke and dust on the conveyor belt. At the same time, the brush holder 203 moves downward to a predetermined position under the action of the cylinder 201. During the operation of the lifting conveyor belt 12, the roller 13 on the lifting conveyor belt 12 rotates due to the friction of the brush body 202, thus achieving cleaning. At this time, the roller 13 can be cleaned twice by high-pressure air and brush 2002, avoiding the smoke and dust that fall on the lifting conveyor belt 12 during long-term shutdown from contaminating the outer packaging of the cigarette pack. After the lifting conveyor belt 12 has been running for 3 minutes, the conveyor belt is cleaned. The PLC controls the solenoid valve to close the air circuit, and the brush holder 203 is lifted upward under the action of the cylinder to prevent the brush from rubbing against the roller 13 for a long time and causing premature wear.

[0057] When the power supply to motor 601 is turned on, motor 601 drives shaft 601 to rotate. The roller brush 402 on shaft 601 continuously cleans horizontal conveyor belt 9. Dust and smoke fall into dust collection box 3. Connect air inlet pipe 1001 to high-pressure air pipe in the workshop and open control valve 1003. Dust removal module 10 starts working and sucks dust and smoke into dust collection bin. Cleaning can be completed by regularly cleaning and replacing the filter element in dust collection bin.

[0058] Based on the wear level and working time of the roller brush 402, loosen the bolts of the rotating shaft bracket 411 and the motor bracket 604, loosen the fastening nuts on the lifting plate 704, and adjust the lifting nuts on the lifting plate 704. The lifting nuts will drive the lifting plate to rise, and the roller brush 402 will move upward. Tighten all nuts and bolts to complete the adjustment, and the height of the cleaning module 4 in the vertical direction can be adjusted. When the roller brush 402 wears to its final service life, replace the roller brush 402 one by one.

[0059] During the process, depending on the required level of cleaning of smoke and dust, the gas pressure entering the cleaning module through the air inlet pipe 1001 is controlled by adjusting the control valve 1003, thereby adjusting the airflow of the blowing and suction pipes and thus the cleaning effect.

[0060] The above are merely preferred embodiments of the present invention and are illustrative rather than restrictive. The structure and connection methods of the components in the present invention can be varied, and any equivalent transformations and improvements made based on the technical solution of the present invention should not be excluded from the protection scope of the present invention.

Claims

1. A system for cleaning and dustproofing a cigarette carton conveying line, provided on a cigarette carton conveying line including a vertical lifting line and a horizontal overhead conveying line, characterized in that, The cigarette conveying line cleaning and dustproof system comprises a first cleaning and dustproof unit arranged at a front section of the vertical lifting line and a second cleaning and dustproof unit arranged on the horizontal high-altitude conveying line. The first cleaning and dustproof unit comprises a high-pressure air cleaning mechanism (1) and a lifting brush cleaning mechanism (2); the vertical lifting line comprises a lifting conveying belt (12), and a plurality of rollers (13) are arranged on the lifting conveying belt (12), and the distance between adjacent two rollers is the length of a half cigarette carton; the high-pressure air cleaning mechanism comprises a cleaning seat arranged directly above the lifting conveying belt (12), and the cleaning seat is internally provided with an air cavity in communication with an air source, and a plurality of small air holes (102) in communication with the air cavity are arranged at the bottom of the cleaning seat; the lifting brush cleaning mechanism comprises a gas cylinder (201) and a brush seat (203), the brush seat is arranged directly above the lifting conveying belt, the gas cylinder is fixed at the side of the lifting conveying belt, the piston rod of the gas cylinder is connected with the brush seat to adjust the height of the brush seat, and a brush body (202) is detachably arranged at the bottom of the brush seat, and the brush body is used for cleaning the rollers (13) on the lifting conveying belt. The horizontal high-altitude conveying line has a plurality of parallel conveying tracks (8), each of which has a circulating horizontal conveying belt (9); the second cleaning and dustproof unit comprises a cleaning module (4), a scraper module (5), a dust removal module (10) and an ash collecting box (3) arranged below the horizontal conveying belt (9); the cleaning module comprises a roller brush (402), and the scraper module comprises a scraper (502); the number of the roller brushes (402) on the cleaning module is the same as the number of the horizontal conveying belts (9), each roller brush is arranged below a horizontal conveying belt, and the rolling direction of the roller brush is opposite to the movement direction of the horizontal conveying belt; the dust removal module comprises a negative pressure generator (1004), a blowing pipeline (1007), a suction pipeline (1008), a primary filter barrel (1002), a secondary filter barrel (1006) and a control valve (1003); the air inlet of the negative pressure generator is connected to an air source through an air inlet pipe (1001), the vacuum port is communicated with the suction pipeline, and the exhaust silencer port is communicated with the blowing pipeline; a plurality of air outlet holes (1009) are formed in the front end of the blowing pipeline, a plurality of air suction holes (1010) are formed in the front end of the suction pipeline, the primary filter barrel is connected between the vacuum port of the negative pressure generator (1004) and the suction pipeline (1008), and the secondary filter barrel is connected between the exhaust silencer port of the negative pressure generator (1004) and the blowing pipeline (1007); the control valve is installed on the air inlet pipe (1001); the roller brush, the scraper, the blowing pipeline and the suction pipeline are all arranged directly below the horizontal conveying belt (9), the roller brush and the scraper are in contact with the lower surface of the horizontal conveying belt, the scraper is in contact with the roller brush, the blowing pipeline and the suction pipeline are close to the scraper, the blowing pipeline is located above the suction pipeline, and the roller brush (402), the scraper (502), the blowing pipeline (1007) and the suction pipeline (1008) are surrounded by the ash collecting box (3). The early shift operator powers on the equipment, and the lifting conveying belt starts to rotate; at this time, the high-pressure air cleaning mechanism starts to clean the smoke and dust on the conveying belt; meanwhile, the brush holder moves downward to the predetermined position under the action of the cylinder; the roller on the lifting conveying belt is cleaned twice by the high-pressure air and the brush; after the lifting conveying belt runs for 3 minutes, the high-pressure air cleaning mechanism stops, and the brush holder is lifted upward under the action of the cylinder to avoid early wear caused by long-time friction between the brush and the roller.

2. The carton conveying line cleaning and dust prevention system according to claim 1, characterized in that, The lifting conveying belt first passes through the high-pressure air cleaning mechanism (1) and then passes through the lifting brush cleaning mechanism (2) during movement.

3. The carton conveying line cleaning and dust prevention system according to claim 1 or 2, characterized in that, The horizontal high-altitude conveying line has a plurality of parallel conveying tracks (8), each of which has a circulating horizontal conveying belt (9); the second cleaning and dustproof unit comprises a cleaning module (4), a scraper module (5), a dust removal module (10) and an ash collecting box (3) arranged below the horizontal conveying belt (9); the cleaning module comprises a roller brush (402), and the scraper module comprises a scraper (502); the number of the roller brushes (402) on the cleaning module is the same as the number of the horizontal conveying belts (9), each roller brush is arranged below a horizontal conveying belt, and the rolling direction of the roller brush is opposite to the movement direction of the horizontal conveying belt; the dust removal module comprises a negative pressure generator (1004), a blowing pipeline (1007), a suction pipeline (1008), a primary filter barrel (1002), a secondary filter barrel (1006) and a control valve (1003); the air inlet of the negative pressure generator is connected to an air source through an air inlet pipe (1001), the vacuum port is communicated with the suction pipeline, and the exhaust silencer port is communicated with the blowing pipeline; a plurality of air outlet holes (1009) are formed in the front end of the blowing pipeline, a plurality of air suction holes (1010) are formed in the front end of the suction pipeline, the primary filter barrel is connected between the vacuum port of the negative pressure generator (1004) and the suction pipeline (1008), and the secondary filter barrel is connected between the exhaust silencer port of the negative pressure generator (1004) and the blowing pipeline (1007); the control valve is installed on the air inlet pipe (1001); the roller brush, the scraper, the blowing pipeline and the suction pipeline are all arranged directly below the horizontal conveying belt (9), the roller brush and the scraper are in contact with the lower surface of the horizontal conveying belt, the scraper is in contact with the roller brush, the blowing pipeline and the suction pipeline are close to the scraper, the blowing pipeline is located above the suction pipeline, and the roller brush (402), the scraper (502), the blowing pipeline (1007) and the suction pipeline (1008) are surrounded by the ash collecting box (3).

4. The carton conveying line cleaning and dust prevention system of claim 1, wherein, ​ 5. The carton conveying line cleaning and dust prevention system of claim 1, wherein, The cleaning module (4) further comprises a fixed support (701), a lifting support (702), a rotating shaft (401) and a motor (601), the fixed support is fixed on the two side plates of the horizontal overhead conveying line, the lifting support is adjustably installed on the fixed support, the lower end of the lifting support is rotatably connected with the rotating shaft, the motor is used for driving the rotating shaft to rotate, a key groove (407) is arranged on the surface of the rotating shaft in the axial direction, a flat key (406) is installed in the shaft hole of the rolling brush (402), the flat key is inserted into the key groove and fixed by bolts.

6. A carton conveying line cleaning and dust prevention system as claimed in claim 5, characterized in that, Waist holes are formed on the two sides of the lifting support (702), and a first adjusting bolt is fixedly connected with the fixed support (701) through the waist holes; a fixed plate (705) is arranged on the top of the fixed support, a lifting plate (704) is arranged on the top of the lifting support, and a second adjusting bolt (703) is abutted against the fixed plate (705) after passing through the lifting plate (704).

7. The carton conveying line cleaning and dust prevention system of claim 1, wherein, The brush holder (203) is provided with a slot (204) and a threaded hole (205), the top of the brush body (202) is provided with an insertion plate matched with the slot, and the top of the piston rod of the air cylinder is provided with a threaded head matched with the threaded hole.

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