Automatic aerosol tank opening cleaning device

Abstract

The utility model belongs to the technical field of aerosols, and discloses an automatic aerosol tank opening cleaning device which comprises a conveyor, the conveyor comprises a conveyor belt, and cleaning mechanisms for limiting an aerosol conveying path are installed on the front side and the rear side of the conveyor. The upper surface of the cleaning mechanism is provided with a limiting mechanism for limiting the moving range of the aerosol conveyed by the upper end of the conveying belt, and the cleaning mechanism is adjusted to move to the moving path of the aerosol by starting the cleaning mechanism, so that the cleaning mechanism cleans the bottleneck of the aerosol in the subsequent aerosol conveying process of the conveying belt; the positions of the two cleaning mechanisms can be adjusted, so that the cleaning range of the device is expanded; by starting the limiting mechanism, the position of the limiting mechanism is moved to the right upper ends of the multiple sets of aerosols, so that the limiting mechanism limits the moving positions of the multiple sets of aerosols at the upper end of the conveying belt, and the aerosols are prevented from rotating on the upper surface of the conveying belt as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of aerosols, in particular to an automatic cleaning device for an aerosol can mouth. Background Art

[0002] Aerosol refers to a drug-containing, emulsion or suspension and a suitable propellant that are sealed in a pressure-resistant container with a special valve system. When in use, the pressure of the propellant is used to spray the contents in the form of mist. It is used for lung inhalation or directly sprayed onto the cavity mucosa, skin and space disinfection. Aerosols are widely used in social life, so aerosol production equipment is also diverse. At present, in the production of small batches of aerosols, manual operation of aerosol filling equipment is mostly adopted. After filling, the nozzle is installed and cleaned manually. However, with the increase in labor costs, the production cost of small batches has increased significantly, and the production profit of aerosol tanks has become smaller and smaller. Equipment that can reduce costs is needed to alleviate cost pressure.

[0003] For example, the utility model with announcement number CN210364667U discloses an automatic cleaning device for the mouth of an aerosol can, which belongs to the field of filling equipment; the technical problem to be solved is to provide an automatic cleaning device for the mouth of an aerosol can, which improves the airtightness during the packaging of the can, saves labor and avoids the inhalation of volatile materials caused by manual wiping, and is environmentally friendly. The device significantly improves the efficiency of the cleaning process of the mouth of an aerosol can, saves energy and is environmentally friendly, and effectively shortens the aerosol production conveyor line; the technical solution adopted to solve the technical problem is: an automatic cleaning device for the mouth of an aerosol can, comprising an aerosol can conveying mechanism and an aerosol can cleaning mechanism, the aerosol can conveying mechanism comprises a conveyor belt and protective vertical plates located on both sides of the conveyor belt, the aerosol can cleaning mechanism comprises a rotating cylinder and a cleaning brush, the cleaning brush is arranged on the output shaft of the rotating cylinder, the aerosol can to be cleaned is transported to the bottom of the cleaning brush by the conveyor belt, and the cleaning brush brushes from the mouth of the aerosol can to be cleaned by the rotation of the rotating cylinder.

[0004] In the process of implementing this application, it was found that the technology has the following problems: most of the existing automatic cleaning devices for aerosol can mouths clean the aerosol can mouths by rotating a cleaning brush, but the outer contours of most aerosol can mouths are not the same, so that the cleaning brush cannot fully clean different aerosol can mouths during the cleaning process, thereby reducing the practicality of the device.

[0005] For this reason, an automatic cleaning device for an aerosol can mouth is proposed. Utility Model Content

[0006] The utility model aims to solve the problem that the outer contours of most aerosol can openings are different, so that the cleaning brush cannot fully clean different aerosol can openings during the cleaning process. The utility model provides an automatic cleaning device for aerosol can openings.

[0007] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0008] An automatic cleaning device for an aerosol can mouth comprises a conveyor, the conveyor comprises a conveyor belt, cleaning mechanisms for limiting the aerosol conveying path are installed on the front and rear sides of the conveyor, a limiting mechanism for limiting the moving range of the aerosol conveyed by the upper end of the conveyor belt is arranged on the upper surface of the cleaning mechanism, a card slot is opened on the upper surface of the limiting mechanism, and an exhaust mechanism is installed inside the card slot.

[0009] Furthermore, the cleaning mechanism includes two groups of L-shaped connecting plates, which are respectively installed on the front and rear sides of the conveyor, and the inner side walls of the two groups of L-shaped connecting plates are installed with an electric telescopic rod 1, and the output ends of the two groups of electric telescopic rods 1 are installed with connecting plates, the front side of the front group of connecting plates is provided with a card slot, and the card slots of the front group of connecting plates are slidably connected with two groups of sliders, the backs of the two groups of sliders are installed with fixing plates, the adjacent sides of the two groups of fixing plates are provided with grooves, and the insides of the two groups of grooves are slidably connected with cleaning brushes, the front side of the front group of connecting plates is installed with a U-shaped fixing rod, and the bottom of the inner wall of the U-shaped fixing rod is installed with a screw, and the upper surfaces of the two groups of sliders are provided with through holes, the position of the screw is located inside the through holes of the two groups of sliders, and the external threads of the screw are connected with four groups of nuts, which are respectively abutted against the upper and lower sides of the two groups of sliders.

[0010] Furthermore, positioning rods are installed on opposite sides of the two groups of connecting plates, through holes are opened inside the two groups of L-shaped connecting plates, and opposite ends of the two groups of positioning rods are respectively inserted into the through holes of the two groups of L-shaped connecting plates.

[0011] Furthermore, two groups of inclined plates are installed on opposite sides of the two groups of L-shaped connecting plates, and the positions of opposite ends of the two groups of positioning rods are respectively located between the four groups of inclined plates.

[0012] Furthermore, the limiting mechanism includes multiple groups of positioning blocks and U-shaped support plates, the multiple groups of positioning blocks are bonded to the outer surface of the conveyor belt, the U-shaped support plate is installed on the upper surface of the two groups of L-shaped connecting plates, and an electric telescopic rod 2 is installed on the top of the inner wall of the U-shaped support plate. A limiting plate is installed at the output end of the electric telescopic rod 2, and the position of the limiting plate is located directly above the conveyor belt.

[0013] Furthermore, the exhaust mechanism includes an air duct and a bellows, the bellows is installed on the upper surface of the conveyor, the air duct is installed inside the slot of the limit plate, connecting pipes are provided on the front and rear sides of the bellows, the suction ends of the two groups of connecting pipes are installed inside the two groups of air ducts, and the exhaust end of the bellows is installed with an exhaust pipe.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. The utility model starts two sets of electric telescopic rods to push two sets of connecting plates to move, adjusts the positions of the two sets of connecting plates to move to the front and rear sides of the aerosol on the upper end of the conveyor belt, and then starts the conveyor to drive the conveyor belt to rotate, so that the conveyor belt drives multiple sets of aerosols to move during the rotation, and makes the multiple sets of aerosols come into contact with the adjacent sides of the two sets of cleaning brushes during the movement, thereby completing the automatic cleaning of the aerosol bottle mouth; the two sets of fixed plates are driven to move by pushing the two sets of sliders, so that the distance between the two sets of fixed plates can be adjusted according to the outer contour of the aerosol bottle mouth, thereby expanding the application range of the device and thus improving the practicality of the device.

[0016] 2. The utility model transports the mobile aerosol and places the position of the aerosol between any two adjacent groups of positioning blocks, and then installs multiple groups of positioning blocks on the outer surface of the conveyor belt, so that the conveyor belt drives the multiple groups of positioning blocks to synchronously drive the aerosol to move during the rotation, and starts the electric telescopic rod 2 to push the limit plate to move downward, so that the position of the lower surface of the limit plate is moved to fit the upper surface of the multiple groups of aerosols on the conveyor belt, and then the limit plate and the multiple groups of positioning blocks limit the moving path of the multiple groups of aerosols on the upper end of the conveyor belt, so as to avoid the aerosol from contacting the cleaning end of the cleaning mechanism and being blocked by the cleaning end of the cleaning mechanism to rotate on the upper surface of the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front structural schematic diagram of the utility model;

[0018] Figure 2 It is a side structural schematic diagram of the utility model;

[0019] Figure 3 It is a side structural diagram of the exhaust mechanism of the utility model;

[0020] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle.

[0021] Figure numerals: 1. conveyor; 101. conveyor belt; 2. cleaning mechanism; 201. L-shaped connecting plate; 202. connecting plate; 203. fixing plate; 204. cleaning brush; 205. electric telescopic rod one; 206. U-shaped fixing rod; 207. screw rod; 208. slider; 209. nut; 3. positioning rod; 4. exhaust mechanism; 401. air duct; 402. bellows; 403. connecting pipe; 404. exhaust pipe; 5. inclined plate; 6. limiting mechanism; 601. positioning block; 602. limiting plate; 603. U-shaped support plate; 604. electric telescopic rod two. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0025] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] like Figures 1 to 4As shown, an automatic cleaning device for aerosol bottle mouth comprises a conveyor 1, the conveyor 1 comprises a conveyor belt 101, cleaning mechanisms 2 for limiting the aerosol conveying path are installed on the front and rear sides of the conveyor 1, a limiting mechanism 6 for limiting the moving range of the aerosol conveyed by the upper end of the conveyor belt 101 is arranged on the upper surface of the cleaning mechanism 2, a card slot is opened on the upper surface of the limiting mechanism 6, and an exhaust mechanism 4 is installed inside the card slot; specifically, by starting the cleaning mechanism 2, the position of the cleaning mechanism 2 is adjusted and moved to the moving path of the aerosol, so that the cleaning mechanism 2 cleans the bottle mouth of the aerosol in the process of the subsequent conveyor belt 101 conveying the aerosol, and then the position of the two groups of cleaning mechanisms 2 can be adjusted, thereby expanding the cleaning range of the device, thereby improving the practicality of the device.

[0027] At the same time, by starting the limiting mechanism 6, the position of the limiting mechanism 6 is moved to the upper end of the multiple groups of aerosols, so that the limiting mechanism 6 limits the moving position of the multiple groups of aerosols on the upper end of the conveyor belt 101, thereby avoiding as much as possible that the aerosol and the cleaning end of the cleaning mechanism 2 come into contact and are blocked by the cleaning end of the cleaning mechanism 2 to rotate on the upper surface of the conveyor belt 101, thereby improving the stability of the aerosol bottle mouth during the cleaning process.

[0028] like Figure 1 , Figure 2 and Figure 4 As shown, the cleaning mechanism 2 includes two groups of L-shaped connecting plates 201, which are respectively installed on the front and rear sides of the conveyor 1. The inner side walls of the two groups of L-shaped connecting plates 201 are both installed with electric telescopic rods 205, and the output ends of the two groups of electric telescopic rods 205 are both installed with connecting plates 202. A card slot is opened on the front side of the front group of connecting plates 202, and two groups of sliders 208 are slidably connected inside the card slot of the front group of connecting plates 202. The backs of the two groups of sliders 208 are both installed with fixed plates 203. The two fixed A groove is provided on one side adjacent to the plate 203, and a cleaning brush 204 is slidably connected inside the two groups of grooves. A U-shaped fixing rod 206 is installed on the front side of the front group of connecting plates 202, and a screw 207 is installed on the bottom of the inner wall of the U-shaped fixing rod 206. Through holes are provided inside the upper surfaces of the two groups of sliders 208, and the screw 207 is located inside the through holes of the two groups of sliders 208. Four groups of nuts 209 are connected to the external threads of the screw 207, and the four groups of nuts 209 are respectively abutted against the upper and lower sides of the two groups of sliders 208;

[0029] Specifically, when the mouths of multiple groups of aerosol bottles are facing the front and before being conveyed on the upper end of the conveyor belt 101, the two groups of connecting plates 202 are pushed to move by starting the two groups of electric telescopic rods 205, and the positions of the two groups of connecting plates 202 are adjusted and moved to the front and rear sides of the aerosol on the upper end of the conveyor belt 101, and then the conveyor 1 is started to drive the conveyor belt 101 to rotate, so that the conveyor belt 101 drives the multiple groups of aerosol to move during the rotation, and makes the multiple groups of aerosol come into contact with the adjacent side of the two groups of cleaning brushes 204 during the movement, thereby completing the automatic cleaning of the aerosol bottle mouth, thereby improving the practicality of the device.

[0030] At the same time, by pushing the two groups of sliders 208 to drive the two groups of fixing plates 203 to move, the distance between the two groups of fixing plates 203 can be adjusted according to the outer contour of the aerosol bottle mouth, thereby expanding the application range of the device and improving the practicality of the device; by rotating the four groups of nuts 209, the four groups of nuts 209 are respectively abutted against the upper and lower ends of the two groups of sliders 208, so that the four groups of nuts 209 limit the moving position of the two groups of sliders 208 at the outer end of the screw rod 207, thereby avoiding the movement of the two groups of sliders 208 and the two groups of cleaning brushes 204 during use as much as possible, thereby improving the stability of the cleaning mechanism 2 during the cleaning process.

[0031] like Figure 1 and Figure 2 As shown, positioning rods 3 are installed on opposite sides of the two groups of connecting plates 202, and through holes are opened inside the two groups of L-shaped connecting plates 201, and the opposite ends of the two groups of positioning rods 3 are respectively inserted into the through holes of the two groups of L-shaped connecting plates 201; specifically, the two groups of connecting plates 202 and the two groups of L-shaped connecting plates 201 are connected by two groups of positioning rods 3, so that the two groups of positioning rods 3 limit the moving paths of the two groups of connecting plates 202, thereby avoiding bending of the two groups of electric telescopic rods 205 during use as much as possible, thereby improving the service life of the two groups of electric telescopic rods 205.

[0032] like Figure 1 and Figure 2 As shown, two groups of inclined plates 5 are installed on opposite sides of the two groups of L-shaped connecting plates 201, and the positions of the opposite ends of the two groups of positioning rods 3 are respectively located between the four groups of inclined plates 5; specifically, the four groups of inclined plates 5 are used to shield the parts of the two groups of positioning rods 3 exposed at the opposite ends of the two groups of L-shaped connecting plates 201, so as to avoid as much as possible the collision between the staff and the two groups of positioning rods 3 when walking around the device, thereby improving the safety of the device during use.

[0033] like Figure 1 and Figure 2As shown, the limiting mechanism 6 includes multiple groups of positioning blocks 601 and U-shaped support plates 603. The multiple groups of positioning blocks 601 are all bonded to the outer surface of the conveyor belt 101. The U-shaped support plates 603 are installed on the upper surfaces of the two groups of L-shaped connecting plates 201. The top of the inner wall of the U-shaped support plate 603 is installed with an electric telescopic rod 2 604. The output end of the electric telescopic rod 2 604 is installed with a limiting plate 602. The position of the limiting plate 602 is located at the upper end of the conveyor belt 101. Specifically, when the aerosol is placed on the conveyor belt 101, When cleaning the upper end, the aerosol is moved by carrying and placing the aerosol between any two adjacent groups of positioning blocks 601, and then multiple groups of positioning blocks 601 are installed on the outer surface of the conveyor belt 101, so that the conveyor belt 101 drives the multiple groups of positioning blocks 601 to synchronously drive the aerosol to move during the rotation process, thereby avoiding as much as possible that the conveyor belt 101 cannot drive the aerosol to continuously move at the upper end of the conveyor belt 101 during the rotation process, resulting in the device being unable to clean the aerosol bottle mouth;

[0034] At the same time, when the conveyor belt 101 drives the aerosol to move, the electric telescopic rod 2 604 is started to push the limit plate 602 to move downward, and the position of the lower surface of the limit plate 602 is moved to fit the upper surface of the multiple groups of aerosols on the conveyor belt 101, so that the limit plate 602 and the multiple groups of positioning blocks 601 limit the movement path of the multiple groups of aerosols at the upper end of the conveyor belt 101, so as to avoid the aerosol from contacting the cleaning end of the cleaning mechanism 2 and being blocked by the cleaning end of the cleaning mechanism 2 to rotate on the upper surface of the conveyor belt 101, thereby improving the stability of the aerosol bottle mouth during the cleaning process.

[0035] like Figures 1 to 3 As shown, the exhaust mechanism 4 includes an air duct 401 and a bellows 402, the bellows 402 is installed on the upper surface of the conveyor 1, the air duct 401 is installed in the card slot of the limit plate 602, and connecting pipes 403 are provided on the front and rear sides of the bellows 402. The suction ends of the two groups of connecting pipes 403 are installed in the two groups of air ducts 401, and the exhaust end of the bellows 402 is installed with an exhaust pipe 404; specifically, before the device cleans the aerosol, the position of the air duct 401 is located just above the multiple groups of aerosol bottle mouths at the upper end of the conveyor belt 101, and then the bellows 402 is started, so that the gas leaked when the multiple groups of aerosols collide is sucked into the inside of the bellows 402 along the air duct 401 and the two groups of connecting pipes 403, and the inhaled gas is discharged to the outside through the exhaust pipe 404, so as to avoid the workers from inhaling a large amount of volatiles from the aerosol bottle mouths during work, which may affect the health of the workers, thereby improving the safety of the device during use.

[0036] In summary: when the mouths of multiple groups of aerosol bottles face the front side and are conveyed on the upper end of the conveyor belt 101, the two groups of connecting plates 202 are pushed to move by starting the two groups of electric telescopic rods 205, and the positions of the two groups of connecting plates 202 are adjusted and moved to the front and rear sides of the aerosol on the upper end of the conveyor belt 101, and then the conveyor 1 is started to drive the conveyor belt 101 to rotate, so that the conveyor belt 101 drives the multiple groups of aerosol to move during the rotation process, and the multiple groups of aerosol are brought into contact with the adjacent side of the two groups of cleaning brushes 204 during the movement, thereby completing the automatic cleaning of the mouths of the aerosol bottles; by pushing the two groups of sliders 2 08 drives the two groups of fixing plates 203 to move, so that the distance between the two groups of fixing plates 203 can be adjusted according to the outer contour of the aerosol bottle mouth, thereby expanding the application range of the device and thus improving the practicality of the device; by rotating the four groups of nuts 209, the four groups of nuts 209 are respectively abutted against the upper and lower ends of the two groups of sliders 208, so that the four groups of nuts 209 limit the moving position of the two groups of sliders 208 at the outer end of the screw rod 207, thereby trying to avoid the two groups of sliders 208 and the two groups of cleaning brushes 204 from moving during use, thereby improving the stability of the cleaning mechanism 2 during the cleaning process.

[0037] At the same time, by starting the electric telescopic rod 2 604 to push the limit plate 602 to move downward, the position of the lower surface of the limit plate 602 is moved to fit the upper surface of the multiple groups of aerosols on the conveyor belt 101, so that the limit plate 602 and the multiple groups of positioning blocks 601 limit the moving path of the multiple groups of aerosols at the upper end of the conveyor belt 101, so as to avoid the aerosols and the cleaning end of the cleaning mechanism 2 from contacting and being blocked by the cleaning end of the cleaning mechanism 2 to rotate on the upper surface of the conveyor belt 101; the position of the air duct 401 is located at the upper end of the multiple groups of aerosol bottle mouths at the upper end of the conveyor belt 101, and then by starting the bellows 402, the gas leaked when the multiple groups of aerosols collide is sucked into the inside of the bellows 402 along the air duct 401 and the two groups of connecting pipes 403, and the inhaled gas is discharged to the outside through the exhaust pipe 404, so as to avoid the workers from inhaling a large amount of volatiles from the aerosol bottle mouths during work, which may affect the workers' health.

[0038] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An automatic cleaning device for an aerosol bottle mouth, comprising a conveyor (1), characterized in that: The conveyor (1) comprises a conveyor belt (101), and cleaning mechanisms (2) for limiting the aerosol transmission path are installed on the front and rear sides of the conveyor (1); a limiting mechanism (6) for limiting the movement range of the aerosol transmitted by the upper end of the conveyor belt (101) is arranged on the upper surface of the cleaning mechanism (2); a slot is provided on the upper surface of the limiting mechanism (6), and an exhaust mechanism (4) is installed inside the slot.

2. The automatic cleaning device for an aerosol can mouth according to claim 1, characterized in that: The cleaning mechanism (2) comprises two groups of L-shaped connecting plates (201), the two groups of L-shaped connecting plates (201) being respectively mounted on the front and rear sides of the conveyor (1), the inner side walls of the two groups of L-shaped connecting plates (201) being mounted with electric telescopic rods (205), the output ends of the two groups of electric telescopic rods (205) being mounted with connecting plates (202), the front side of the front group of connecting plates (202) being provided with a card slot, the card slot of the front group of connecting plates (202) being slidably connected with two groups of sliding blocks (208), the backs of the two groups of sliding blocks (208) being mounted with fixing plates (203), the two groups of fixing plates (203) being provided with a plurality of connecting plates (203) and the connecting plates (203) being provided with a plurality of connecting plates (203). A groove is provided on one side adjacent to the two groups of sliding blocks (203), and a cleaning brush (204) is slidably connected inside the two groups of grooves. A U-shaped fixing rod (206) is installed on the front side of the front group of connecting plates (202), and a screw (207) is installed at the bottom of the inner wall of the U-shaped fixing rod (206). Through holes are provided inside the upper surfaces of the two groups of sliding blocks (208), and the screw (207) is located inside the through holes of the two groups of sliding blocks (208). Four groups of nuts (209) are connected to the external threads of the screw (207), and the four groups of nuts (209) are respectively abutted against the upper and lower sides of the two groups of sliding blocks (208).

3. The automatic cleaning device for an aerosol can opening according to claim 2, characterized in that: Positioning rods (3) are installed on opposite sides of the two groups of connecting plates (202), through holes are opened inside the two groups of L-shaped connecting plates (201), and opposite ends of the two groups of positioning rods (3) are respectively inserted into the through holes of the two groups of L-shaped connecting plates (201).

4. The automatic cleaning device for an aerosol can opening according to claim 3, characterized in that: Two groups of inclined plates (5) are installed on opposite sides of the two groups of L-shaped connecting plates (201), and the positions of opposite ends of the two groups of positioning rods (3) are respectively located between the four groups of inclined plates (5).

5. The automatic cleaning device for an aerosol can opening according to claim 2, characterized in that: The limiting mechanism (6) comprises a plurality of groups of positioning blocks (601) and a U-shaped support plate (603), wherein the plurality of groups of positioning blocks (601) are bonded to the outer surface of the conveyor belt (101), the U-shaped support plate (603) is mounted on the upper surface of the two groups of L-shaped connecting plates (201), the top of the inner wall of the U-shaped support plate (603) is mounted with an electric telescopic rod 2 (604), the output end of the electric telescopic rod 2 (604) is mounted with a limiting plate (602), and the position of the limiting plate (602) is located directly above the conveyor belt (101).

6. The automatic cleaning device for the mouth of an aerosol can according to claim 5, characterized in that: The exhaust mechanism (4) comprises an air duct (401) and a bellows (402), wherein the bellows (402) is mounted on the upper surface of the conveyor (1), the air duct (401) is mounted inside the slot of the limiting plate (602), connecting pipes (403) are arranged on both the front and rear sides of the bellows (402), the air intake ends of the two groups of connecting pipes (403) are mounted inside the two groups of air ducts (401), and the exhaust end of the bellows (402) is mounted with an exhaust pipe (404).

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