Cut stem cleaning device and cut stem conveying device

Abstract

The utility model belongs to the technical field of cigarette equipment, and discloses a cut stem cleaning device and a cut stem conveying device. The cut stem cleaning device comprises a shell, an air pipe and a blowing mechanism. The air pipe is connected to the shell, a first air inlet is formed in the end of the air pipe, a first air outlet is formed in the side wall of the air pipe, the blowing mechanism comprises a fan and an air bellow, the fan is arranged in the air pipe, the air bellow is arranged in the shell, a second air inlet and a second air outlet are formed in the air bellow, and the second air inlet is communicated with the first air outlet. The second air outlet communicates with the interior of the shell. A plurality of exhaust holes are formed in the shell at intervals, the draught fan sucks air into the air pipe through the first air inlet, the air entering the air pipe enters the air box through the first air outlet and then enters the shell through the second air outlet, and the air is exhausted out of the shell through the exhaust holes. Air exhausted from the shell can blow away the cut stems adsorbed on the transparent glass at the position corresponding to the signal emitting part of the photoelectric sensor.

Description

A stem cleaning device and a stem conveying device Technical Field

[0001] This utility model relates to the field of cigarette equipment technology, and in particular to a stem cleaning device and a stem conveying device. Background Technology

[0002] Cigarette stems are one of the important raw materials in cigarette production. In the stem production process, the shredded tobacco stems need to enter a loosening process, where mechanical action is used to fully disperse the stems. The loosened material then falls naturally onto a conveyor belt, where a continuous conveying device smoothly transfers the processed stems to a dedicated storage silo (stem silo) for storage and continued feeding to the next process. During the stem conveying process, if the feeding speed exceeds the conveying speed, the stems will accumulate in the stem silo.

[0003] To prevent excessive accumulation of stems in the stem hopper, existing stem conveying devices typically have photoelectric sensors installed on the outside of the hopper. These sensors detect the height of the stems inside the hopper through transparent acrylic glass. When the stem accumulation reaches a certain height, the photoelectric sensor detects the material and receives a photoelectric signal, stopping the feeding of stems into the hopper. Feeding continues when the sensor does not detect any stem material.

[0004] The loosened stem fibers have a lower mass and density, making them prone to floating when falling onto the conveyor belt. Furthermore, due to their thinness and high cellulose content (similar to paper scraps), the stem fibers easily adhere to the transparent glass due to static electricity, thus blocking the light signal from the photoelectric sensor. Continuous blocking of the photoelectric sensor's light signal causes it to detect "false signals," preventing proper feeding into the stem fiber hopper and resulting in material shortages in the next process. It also causes stem fiber accumulation during the loosening process. Summary of the Invention

[0005] The purpose of this invention is to provide a stem cleaning device and a stem conveying device. The stem cleaning device can blow away the stems to prevent them from blocking the light signal of the photoelectric sensor.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] On the one hand, a stem cleaning device is provided, comprising:

[0008] A housing having multiple vent holes spaced apart, the vent holes being inclined relative to the horizontal direction;

[0009] The air duct is connected to the housing, and a first air inlet is provided at the end of the air duct and a first air outlet is provided on the side wall of the air duct.

[0010] The purging mechanism includes a blower and a blower box. The blower is disposed inside the air duct, and the blower box is disposed inside the housing. The blower box is provided with a second air inlet and a second air outlet. The second air inlet is connected to the first air outlet, and the second air outlet is connected to the interior of the housing.

[0011] Optionally, the air duct is disposed inside the housing, the housing has a through hole, the air duct passes through the through hole and overlaps the inner wall of the housing, and the first air inlet communicates with the outside of the housing through the through hole.

[0012] Optionally, the stem cleaning device further includes a filter assembly, which includes a filter cartridge disposed inside the air duct and connected to the air duct.

[0013] Optionally, the stem cleaning device further includes a cleaning component, which includes a motor, a rotating shaft, and a cleaning element. The cleaning element is mounted on the side wall of the rotating shaft, and the end of the cleaning element away from the rotating shaft abuts against the inner wall of the filter cartridge. The motor is located inside the air duct, and the bottom of the filter cartridge has an installation hole. One end of the rotating shaft passes through and extends out of the filter cartridge, and the motor is driven and connected to the end of the rotating shaft that extends out of the installation hole.

[0014] Optionally, the stem cleaning device further includes a support assembly, which includes a connector and a support member. The connector is disposed inside the filter cylinder and is rotatably connected to the rotating shaft. One end of the support member is connected to the connector, and the other end abuts against the inner wall of the filter cylinder.

[0015] Optionally, the stem cleaning device further includes a protective component, which includes a protective cover plate disposed inside the housing and rotatably connected to the housing. The protective cover plate corresponds to the vent and can block the vent.

[0016] Optionally, the protective assembly further includes a push plate, one end of which is connected to the protective cover plate, and the other end extends downward and corresponds to the second air outlet.

[0017] Optionally, the protective assembly further includes a limiting member disposed on the inner wall of the housing, wherein the side of the push plate facing the air duct can abut against the limiting member.

[0018] Optionally, the filament cleaning device further includes a positioning component for fixing to an external object, the positioning component being connected to the outer wall of the housing.

[0019] On the other hand, a stem conveying device is provided, including a conveying mechanism, a photoelectric sensor, and the aforementioned stem cleaning device. The photoelectric sensor is disposed on one side of the conveying mechanism, and the stem cleaning device is disposed between the conveying mechanism and the photoelectric sensor, and located below the photoelectric sensor. The exhaust port corresponds to the signal transmitting part of the photoelectric sensor.

[0020] The beneficial effects of this utility model are:

[0021] This utility model provides a stem cleaning device and a stem conveying device. The stem cleaning device includes a housing, an air duct, and a blowing mechanism. The air duct is connected to the housing, with a first air inlet at one end and a first air outlet on the side wall of the air duct. The blowing mechanism includes a fan and a bellows. The fan is located inside the air duct, and the bellows is located inside the housing. The bellows has a second air inlet and a second air outlet, which communicate with the first air outlet and the interior of the housing. Multiple exhaust holes are spaced apart on the housing. The fan draws air into the air duct through the first air inlet. The air entering the air duct enters the bellows through the first air outlet, then enters the housing through the second air outlet, and is exhausted through the exhaust holes. The air exhausted from the housing can blow away the stems. By providing multiple exhaust holes, the blowing area can be increased. The exhaust port is aligned with the signal transmitter of the photoelectric sensor. The exhaust port is tilted relative to the horizontal direction. By placing the exhaust port close to the transparent glass, the filaments adsorbed on the transparent glass at the part corresponding to the signal transmitter of the photoelectric sensor can be blown away. This prevents the light signal of the photoelectric sensor from being blocked, avoids the photoelectric sensor from recognizing false signals, and prevents the filaments from being empty in the filaments chamber, which would cause material shortages in the next process and filaments from accumulating in the loosening process, thereby improving work efficiency. Attached Figure Description

[0022] Figure 1 is a schematic diagram of the filament cleaning device provided in an embodiment of the present invention;

[0023] Figure 2 is a structural schematic diagram of the air duct and purging mechanism provided in an embodiment of this utility model;

[0024] Figure 3 is a structural schematic diagram of the air duct, purging mechanism and protective components provided in the embodiment of this utility model;

[0025] Figure 4 is a structural schematic diagram of the filter assembly and cleaning assembly provided in the embodiment of this utility model;

[0026] Figure 5 is a structural schematic diagram of the stem cleaning device (without support components) provided in an embodiment of this utility model;

[0027] Figure 6 is a schematic diagram of the structure of the protective component provided in an embodiment of this utility model.

[0028] In the picture:

[0029] 1. Casing; 11. Vent port;

[0030] 2. Air duct; 21. First air inlet; 22. First air outlet;

[0031] 3. Purge mechanism; 31. Fan; 32. Air box; 321. Second air inlet; 322. Second air outlet;

[0032] 4. Filter assembly; 41. Filter cartridge; 42. Retaining ring;

[0033] 5. Cleaning components; 51. Motor; 52. Shaft; 53. Cleaning parts; 54. Gearbox; 55. First magnetic ring; 56. Second magnetic ring;

[0034] 6. Support component; 61. Connector; 62. Support component; 63. Positioning rod;

[0035] 7. Protective components; 71. Protective cover plate; 72. Push plate; 73. Limiting component; 74. Connecting rod;

[0036] 8. Positioning components. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0038] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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 or an electrical connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not 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 utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0041] As shown in Figures 1-3, this embodiment provides a stem cleaning device, which includes a housing 1, an air duct 2, and a blowing mechanism 3. The air duct 2 is connected to the housing 1, and a first air inlet 21 is provided at the end of the air duct 2. A first air outlet 22 is provided on the side wall of the air duct 2. The blowing mechanism 3 includes a fan 31 and a bellows 32. The fan 31 is disposed inside the air duct 2, and the bellows 32 is disposed inside the housing 1. The bellows 32 is provided with a second air inlet 321 and a second air outlet 322. The second air inlet 321 communicates with the first air outlet 22, and the second air outlet 322 communicates with the interior of the housing 1. Multiple exhaust holes 11 are provided on the housing 1 at intervals. The fan 31 draws air into the air duct 2 through the first air inlet 21. The air entering the air duct 2 enters the air box 32 through the first air outlet 22, and then enters the housing 1 through the second air outlet 322. The air is discharged from the housing 1 through the exhaust holes 11. The air discharged from the housing 1 can blow the filaments.

[0042] By setting multiple vent holes 11, the purging area can be increased. The vent holes 11 are aligned with the signal transmitting part of the photoelectric sensor, and the vent holes 11 are set at an angle relative to the horizontal direction. By bringing the vent holes 11 close to the transparent glass, the filaments adsorbed on the transparent glass at the part corresponding to the signal transmitting part of the photoelectric sensor can be blown away, avoiding the blocking of the photoelectric sensor's light signal, preventing the photoelectric sensor from recognizing false signals and causing the filament chamber to be empty, resulting in material shortage in the next process and filament accumulation in the loosening process, thus improving work efficiency.

[0043] Specifically, the housing 1 is elongated, and the exhaust port 11 is also elongated. The top of the housing 1 is inclined relative to the horizontal direction, and the exhaust port 11 is located on the top of the housing 1, making the exhaust port 11 inclined relative to the horizontal direction. The length direction of the exhaust port 11 is perpendicular to the length direction of the housing 1, and multiple exhaust ports 11 are spaced apart along the length direction of the housing 1. The specific number of exhaust ports 11 is determined according to the size of the housing 1, and this embodiment does not limit this. The air duct 2 is elongated, and the length direction of the air duct 2 is perpendicular to the exhaust port 11, and it is located on the side of the exhaust port 11 near the bottom of the housing 1. Both ends of the air duct 2 are provided with a first air inlet 21. There are two fans 31, and each fan 31 corresponds to one of the first air inlets 21. The fans 31 are fixed to the inner wall of the air duct 2, close to the first air inlet 21, and the air inlet of the fans 31 faces the first air inlet 21. The second air outlet 322 is located between the two fans 31. The second air inlet 321 is cylindrical and extends into the first air outlet 22. The outer wall of the second air inlet 321 fits snugly against the inner wall of the first air outlet 22, reducing the gap between them. The second air outlet 322 is located on the side of the exhaust port 11 near the bottom of the housing 1, making it easier for air to escape from the exhaust port 11 and improving the purging effect.

[0044] Optionally, the air duct 2 is disposed inside the housing 1, and the housing 1 is provided with a through hole. The air duct 2 passes through the through hole and overlaps the inner wall of the housing 1, which facilitates the installation of the air duct 2. At the same time, it makes the integration of the stem cleaning device more efficient and convenient for installation and carrying. The first air inlet 21 communicates with the outside of the housing 1 through the through hole, allowing outside air to enter the air duct 2.

[0045] Specifically, the duct 2 can be fixed to the housing 1 by means of snap-fit ​​or adhesive bonding, which is not limited in this embodiment. Both ends of the housing 1 along its length are provided with through holes, and the two ends of the duct 2 correspond one-to-one with the through holes. The outer wall of the duct 2 fits against the inner wall of the through hole, improving the stability of the connection between the duct 2 and the housing 1, and also improving the sealing between the duct 2 and the through hole. The air box 32 can be fixed inside the housing 1 by means of screw connection or snap-fit, which is not limited in this embodiment.

[0046] Optionally, as shown in Figures 1, 3 and 4, the stem cleaning device further includes a filter assembly 4, which includes a filter cylinder 41. The filter cylinder 41 is disposed inside and connected to the air duct 2. The filter cylinder 41 can filter the stems in the air drawn into the air duct 2, preventing the stems from entering the air box 32 through the air duct 2 and then into the housing 1, thus affecting the blowing effect.

[0047] Specifically, two filter components 4 are provided, located on one side of the air inlet of the fan 31. This prevents the fan 31 from drawing the filter wire into the duct 2 during operation and adhering to its outer surface, thus affecting the air intake effect of the duct 2. The filter components 4 correspond one-to-one with the first air inlet 21. The filter cylinder 41 is cylindrical, with ventilation holes evenly distributed on its side and bottom walls to allow air to enter the duct 2 through the ventilation holes. The filter component 4 also includes a retaining ring 42. The inner wall of the retaining ring 42 has a groove, and the outer wall of the open end of the filter cylinder 41 has a buckle. The buckle engages with the groove to fix the filter cylinder 41 to the retaining ring 42. The outer wall of the retaining ring 42 has an external thread, and the inner wall of the duct 2 has an internal thread corresponding to the external thread. The retaining ring 42 is threadedly connected to the duct 2, thereby fixing the filter cylinder 41 inside the duct 2. The filter cartridge 41 can be installed and removed by rotating the retaining ring 42, which facilitates the replacement and maintenance of the filter cartridge 41.

[0048] In another embodiment, the inner wall of the fixing ring 42 is provided with a circumferential groove, and a slider is provided on the outer wall of one end of the filter cylinder 41 opening. The slider is slidably connected in the groove to rotate the filter cylinder 41 and the fixing ring 42. Rotating the filter cylinder 41 can prevent the filaments from accumulating in the filter cylinder 41.

[0049] Furthermore, as shown in Figures 1-5, the stem cleaning device also includes a cleaning component 5, which includes a motor 51, a rotating shaft 52, and a cleaning element 53. The cleaning element 53 is installed on the side wall of the rotating shaft 52, and the end of the cleaning element 53 away from the rotating shaft 52 abuts against the inner wall of the filter cylinder 41. The motor 51 is located inside the air duct 2. A mounting hole is provided at the bottom of the filter cylinder 41, and one end of the rotating shaft 52 passes through and extends out of the mounting hole. The motor 51 drives the rotating shaft 52 to rotate, thereby causing the cleaning element 53 to rotate relative to the filter cylinder 41, thus cleaning the stems inside the filter cylinder 41 and preventing the stems from accumulating inside the filter cylinder, which would affect the air intake effect.

[0050] Specifically, there are two cleaning components 5, each corresponding to a filter cartridge 41. Each cleaning component 5 also includes a gearbox 54, with a motor 51 connected to its input end. A mounting hole is located at the center of the bottom wall of the filter cartridge 41, and one end of the rotating shaft 52 extending from the mounting hole is fixedly connected to the output end of the gearbox 54. A mounting groove is provided on the inner wall of the top of the duct 2, and the motor 51 is installed in this groove. The gearbox 54 is installed on the inner wall of the bottom of the duct 2; its size is smaller than that of the duct 2 to prevent air from being blocked. Annular auger blades are installed on the inner wall of the filter cartridge 41. The cleaning component 53 can push the filaments inside the filter cartridge 41 out along the spiral grooves formed by the annular auger blades, improving the cleaning effect. The cleaning component 53 is a soft brush, which avoids excessive friction between the cleaning component 53 and the filter cartridge when the cleaning component 53 rotates. At the same time, when the filter cartridge 41 is disassembled, the cleaning component 53 can be moved out of the filter cartridge 41 through the mounting hole, thereby avoiding the cleaning component 53 blocking the movement of the filter cartridge 41 when the filter cartridge 41 is disassembled.

[0051] Specifically, the cleaning component 5 also includes a first magnetic ring 55 and a second magnetic ring 56. The first magnetic ring 55 is fixedly connected to the bottom wall of the filter cartridge 41 facing the gearbox 54, and the second magnetic ring 56 is fixed to the side wall of the gearbox 54 facing the filter cartridge 41. The rotating shaft 52 passes through the mounting hole, the first magnetic ring 55, and the second magnetic ring 56 in sequence and is fixedly connected to the output end of the gearbox 54. The first magnetic ring 55 and the second magnetic ring 56 are magnetically connected, fixing the bottom of the filter cartridge to the gearbox 54 through the first magnetic ring 55 and the second magnetic ring 56, thereby improving the fixing strength of the filter cartridge 41. At the same time, when the filter cartridge 41 is disassembled, the first magnetic ring 55 and the second magnetic ring 56 automatically disconnect under the action of external force, facilitating the disassembly of the filter cartridge 41.

[0052] Furthermore, the stem cleaning device also includes a support assembly 6, which includes a connector 61 and a support member 62. The connector 61 is disposed inside the filter cylinder 41 and is rotatably connected to the rotating shaft 52. One end of the support member 62 is connected to the connector 61, and the other end abuts against the inner wall of the filter cylinder 41. The support assembly 6 fixes the rotating shaft 52 to the filter cylinder 41, thereby improving the fixing strength of the rotating shaft 52.

[0053] Specifically, the support assembly 6 also includes a positioning rod 63. Positioning grooves are provided at both ends of the rotating shaft 52, and one end of the positioning rod 63 is inserted into and interference-fitted with the positioning groove. The connecting member 61 is a ring-shaped structure, rotatably connected to the end of the positioning rod 63 away from the rotating shaft 52 via a bearing, allowing the rotating shaft 52 to rotate relative to the connecting member 61. The support member 62 is a support rod, and three support members 62 are provided, spaced apart circumferentially around the connecting member 61. One end of the support member 62 is fixedly connected to the outer wall of the connecting member 61, and the other end extends radially along the connecting member 61 and abuts against the inner wall of the filter cartridge 41. Connecting the connecting member 61 to the end of the positioning rod 63 away from the rotating shaft 52 improves the stability of the rotating shaft 52 during rotation. Rotating the support member 62 drives the filter cartridge 41 to rotate, which in turn drives the fixing ring 42 to rotate, thereby allowing the fixing ring 42 to be installed or removed, facilitating the installation and removal of the filter assembly 4.

[0054] Optionally, as shown in Figures 1-3 and 6, the stem cleaning device further includes a protective component 7. The protective component 7 includes a protective cover plate 71, which is disposed inside the housing 1 and rotatably connected to the housing 1. The protective cover plate 71 corresponds to and can block the exhaust port 11. When the stem cleaning device is not in operation, the protective cover plate 71 blocks the exhaust port 11, preventing stems from entering the housing 1 through the exhaust port 11. When the stem cleaning device is in operation, the protective cover plate 71 is rotated so that it does not completely block the exhaust port 11, allowing air to be discharged through the exhaust port 11.

[0055] Specifically, multiple protective covers 71 are provided, each corresponding to one of the vent holes 11. The protective covers 71 have the same shape as the vent holes 11 and are clearance-fitted with the sidewalls of the vent holes 11. The protective assembly 7 also includes connecting rods 74, which extend along the length of the housing 1, and the multiple protective covers 71 are fixedly connected to the connecting rods 74. Grooves are provided at both ends of the top of the housing 1 along the length of the housing 1, and the two ends of the connecting rods 74 are rotatably connected to the grooves respectively. In other embodiments, multiple connecting rods 74 may also be provided, with each protective cover 71 connected to one connecting rod 74, and grooves are provided on the two sidewalls of the vent holes 11 along the length of the housing 1, with the two ends of the connecting rods 74 rotatably connected to the grooves respectively.

[0056] Furthermore, the protective component 7 also includes a push plate 72. One end of the push plate 72 is connected to the protective cover 71, and the other end extends downward and corresponds to the second air outlet 322. When the filament cleaning device is in operation, air is blown out of the second air outlet 322. The air can push the push plate 72 away from the second air outlet 322, thereby causing the protective cover 71 to rotate, allowing the air to be discharged through the exhaust hole 11. When the filament cleaning device is in operation, the push plate 72 can make the protective cover 71 rotate automatically. When the filament cleaning device is not in operation, the push plate 72 drives the protective cover 71 to rotate due to gravity, causing the protective cover 71 to block the exhaust hole 11, realizing the automatic reset of the protective cover 71, which facilitates the adjustment of the protective cover 71.

[0057] Specifically, the push plate 72 is elongated. Multiple push plates 72 are provided, each corresponding to a protective cover 71. One end of the push plate 72 is fixedly connected to the end of the protective cover 71 near the second air outlet 322. The other end of the push plate 72 is provided with a reset part, making the push plate 72 "inverted T-shaped". The reset part can increase the weight under the push plate 72, making it easier for the push plate 72 to reset under the action of gravity.

[0058] Furthermore, the protective component 7 also includes a limiting member 73, which is disposed on the inner wall of the housing 1. The side of the push plate 72 facing the air duct 2 can abut against the limiting member 73. The limiting member 73 can restrict the position of the push plate 72, thereby preventing the push plate 72 from swinging back and forth when resetting, enabling the push plate 72 to reset quickly and improving the reset efficiency of the push plate 72.

[0059] Specifically, the limiting member 73 is a limiting block. Multiple limiting members 73 are provided, spaced apart along the length of the housing 1, and fixed to the bottom wall of the housing 1. Each limiting member 73 corresponds to a push plate 72. When the push plate 72 abuts against the limiting member 73, the protective cover 71 blocks the exhaust port 11.

[0060] Optionally, as shown in Figures 1 and 5, the stem cleaning device further includes a positioning component 8 for fixing to an external object. The positioning component 8 is connected to the outer wall of the housing 1. The positioning component 8 can fix the stem cleaning device to the inner wall at the bottom of the stem hopper, preventing the stem cleaning device from moving during operation and improving the stability of the stem cleaning device during operation.

[0061] Specifically, the positioning component 8 includes a suction cup and a locking plate. A locking groove is provided on the outer wall of the bottom of the housing 1, and the locking plate is locked into the locking groove and adheres to the outer wall of the housing 1. The suction cup is fixedly connected to the side of the locking plate facing away from the housing 1. The side of the suction cup facing away from the locking plate can adhere to the inner wall of the bottom of the filament hopper, thereby fixing the filament cleaning device. The locking plate and locking groove facilitate the installation and removal of the suction cup. In another embodiment, two locking grooves are spaced apart along the length of the housing 1, and the locking plate is locked into one of the locking grooves. By locking the locking plate into different locking grooves, the position of the suction cup can be changed.

[0062] As shown in Figures 1-6, this embodiment also provides a stem conveying device, which includes a conveying mechanism, a photoelectric sensor, and the aforementioned stem cleaning device. The photoelectric sensor is disposed on one side of the conveying mechanism, and the stem cleaning device is disposed between the conveying mechanism and the photoelectric sensor, and located below the photoelectric sensor. The exhaust port 11 corresponds to the signal emitting part of the photoelectric sensor, which can blow away the stems adsorbed on the transparent glass at the part corresponding to the signal emitting part of the photoelectric sensor, avoid blocking the light signal of the photoelectric sensor, avoid the photoelectric sensor recognizing false signals, and prevent the stem hopper from having no material, causing material shortage in the next process and stem accumulation in the loosening process, thereby improving work efficiency.

[0063] Specifically, the conveying mechanism is located inside the stem and fiber compartment, while the photoelectric sensor is located outside the compartment and to one side of the conveying mechanism. The photoelectric sensor can detect the stems and fibers inside the compartment through a glass cover on the side wall. The stem and fiber cleaning device is fixed to the bottom wall of the compartment using suction cups. The photoelectric sensor is electrically connected to a power source, and the fan 31 is also electrically connected to the photoelectric sensor. A single power source can simultaneously control the operating status of both the fan 31 and the photoelectric sensor, allowing them to operate synchronously for ease of use.

[0064] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A stem cleaning device, characterized in that, include: A housing (1) is provided with a plurality of exhaust holes (11) spaced apart, the exhaust holes (11) being inclined relative to the horizontal direction; a duct (2) is connected to the housing (1), the end of the duct (2) is provided with a first air inlet (21), and the side wall of the duct (2) is provided with a first air outlet (22); a purging mechanism (3) is provided, the purging mechanism (3) including a fan (31) and a bellows (32), the fan (31) being disposed inside the duct (2), the bellows (32) being disposed inside the housing (1), the bellows (32) being provided with a second air inlet (321) and a second air outlet (322), the second air inlet (321) being connected to the first air outlet (22), and the second air outlet (322) being connected to the interior of the housing (1).

2. The stem cleaning device according to claim 1, characterized in that, The air duct (2) is disposed inside the housing (1), and the housing (1) is provided with a through hole. The air duct (2) passes through the through hole and overlaps the inner wall of the housing (1). The first air inlet (21) communicates with the outside of the housing (1) through the through hole.

3. The stem cleaning device according to claim 1, characterized in that, The stem cleaning device also includes a filter assembly (4), which includes a filter cylinder (41) disposed inside the air duct (2) and connected to the air duct (2).

4. The stem cleaning device according to claim 3, characterized in that, The stem cleaning device also includes a cleaning component (5), which includes a motor (51), a rotating shaft (52), and a cleaning element (53). The cleaning element (53) is installed on the side wall of the rotating shaft (52), and the end of the cleaning element (53) away from the rotating shaft (52) abuts against the inner wall of the filter cylinder (41). The motor (51) is located inside the air duct (2). The bottom of the filter cylinder (41) has an installation hole. One end of the rotating shaft (52) passes through and extends out of the filter cylinder (41). The motor (51) is driven and connected to the end of the rotating shaft (52) that extends out of the installation hole.

5. The stem cleaning device according to claim 4, characterized in that, The stem cleaning device further includes a support assembly (6), which includes a connector (61) and a support member (62). The connector (61) is disposed inside the filter cylinder (41) and is rotatably connected to the rotating shaft (52). One end of the support member (62) is connected to the connector (61), and the other end abuts against the inner wall of the filter cylinder (41).

6. The stem cleaning device according to claim 1, characterized in that, The stem cleaning device also includes a protective component (7), which includes a protective cover (71). The protective cover (71) is disposed inside the housing (1) and rotatably connected to the housing (1). The protective cover (71) corresponds to the exhaust hole (11) and can cover the exhaust hole (11).

7. The stem cleaning device according to claim 6, characterized in that, The protective component (7) also includes a push plate (72), one end of which is connected to the protective cover plate (71), and the other end extends downward and corresponds to the second air outlet (322).

8. The stem cleaning device according to claim 7, characterized in that, The protective component (7) also includes a limiting member (73), which is disposed on the inner wall of the housing (1), and the side of the push plate (72) facing the air duct (2) can abut against the limiting member (73).

9. The stem cleaning device according to any one of claims 1-8, characterized in that, The filament cleaning device also includes a positioning component (8) for fixing to an external object, the positioning component (8) being connected to the outer wall of the housing (1).

10. A filament conveying device, characterized in that, The device includes a conveying mechanism, a photoelectric sensor, and a stem cleaning device as described in any one of claims 1-9. The photoelectric sensor is disposed on one side of the conveying mechanism, the stem cleaning device is disposed between the conveying mechanism and the photoelectric sensor and is located below the photoelectric sensor, and the exhaust port (11) corresponds to the signal transmitting part of the photoelectric sensor.

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