A dust removal system and control method for a cigarette pack conveying device.

Abstract

This invention provides a dust removal system for a cigarette pack conveying device, comprising: a first suction hood disposed on one side of the conveying mechanism, used to extract cigarette dust from the surface of the cigarette packs on the conveying mechanism; a second suction hood disposed above a tilting mechanism, used to extract cigarette dust from the surface of the cigarette packs on the tilting mechanism; a control valve connected to the second suction hood, used to control the airflow rate of the second suction hood; a detection unit disposed above the output end of the conveying mechanism, used to detect cigarette dust on the surface of the cigarette packs running to the output end of the conveying mechanism and output a detection signal; and a control unit electrically connected to the detection unit and the control valve, the control unit being able to adjust the opening degree of the control valve according to the detection signal. This invention can effectively remove cigarette dust from the cigarette conveying device, preventing cigarette dust from entering the cigarette pack with the cigarettes, thus improving product quality. This invention also provides a control method.

Description

Technical Field

[0001] This invention relates to the field of cigarette packaging technology, and in particular to a dust removal system and control method for a cigarette pack conveying device. Background Technology

[0002] The ZB45 cigarette packaging machine is a relatively advanced and mature packaging machine. This equipment demonstrates good stability and product packaging quality during production, making it a mainstay model in cigarette packaging. The cigarette conveying device on the packaging machine includes a wheeled mold box, a cigarette pack pusher, and a cigarette pack flipper, used to transport cigarettes from the cigarette storage area to the aluminum foil packaging station. During the process of moving the cigarettes from the cigarette storage area to the aluminum foil packaging station, they need to undergo processes such as patting and alignment, and agitation and loosening. During the patting and agitation process, a significant amount of tobacco dust (tobacco fragments) falls from the ends of the cigarettes. This tobacco dust falls onto the surface of the cigarettes and will enter the cigarette pack during the packaging process, reducing packaging quality and directly affecting the consumer's user experience, causing serious quality problems. Summary of the Invention

[0003] The purpose of this invention is to solve the technical problem of tobacco dust accumulation on cigarette conveying devices affecting cigarette packaging quality. This invention provides a dust removal system for cigarette conveying devices, which can effectively remove tobacco dust from the conveying devices, preventing tobacco dust from entering the cigarette packs with the cigarette assembly, thus improving product quality.

[0004] To solve the above-mentioned technical problems, the present invention provides a dust removal system for a cigarette pack conveying device. The cigarette pack conveying device includes a conveying mechanism and a turning mechanism arranged sequentially along the cigarette pack conveying direction. A cigarette pusher is provided between the conveying mechanism and the turning mechanism, and the cigarette pusher is used to push the cigarette packs output by the conveying mechanism into the turning mechanism. The dust removal system includes:

[0005] The first suction hood is located on one side of the conveying mechanism and is used to suck up the cigarette dust on the surface of the cigarette pack on the conveying mechanism.

[0006] The second suction hood is located above the flipping mechanism and is used to suck up the cigarette dust on the surface of the cigarette pack on the flipping mechanism.

[0007] A control valve, connected to the second suction hood, is used to control the airflow rate of the suction hood.

[0008] The detection unit is located above the output end of the conveying mechanism. The detection unit is used to detect the tobacco dust on the surface of the cigarette pack that has run to the output end of the output mechanism and output a detection signal.

[0009] The control unit is electrically connected to the detection unit and the control valve. The control system can adjust the opening degree of the control valve according to the detection signal.

[0010] Optionally, the conveying mechanism includes a synchronous pulley, a synchronous belt sleeved on the synchronous pulley, and a cigarette mold box disposed on the outer surface of the synchronous belt. The cigarette mold box is used to store cigarette sets. The synchronous pulley can drive the cigarette mold box to run in a first direction. A first guard plate and a second guard plate are respectively provided on both sides of the conveying mechanism, and the first guard plate and the second guard plate are parallel to each other.

[0011] Optionally, the first suction hood is disposed on the first protective plate, and the first suction hood is provided with a plurality of first suction ports arranged sequentially along the first direction. When the cigarette mold box moves along the first direction, it passes through each of the first suction ports in sequence. The first suction hood is connected to the workshop dust collection system, and the workshop dust collection system can provide negative pressure for the first suction hood.

[0012] Optionally, the flipping mechanism includes a rotating shaft and a clamping mechanism connected to the rotating shaft. The clamping mechanism is used to store the cigarette pack. The rotating shaft can drive the clamping mechanism to rotate around the axis of the rotating shaft between a first position and a second position. When the clamping mechanism is in the first position, the cigarette pusher can push the cigarette pack into the clamping mechanism. When the clamping mechanism is in the second position, the cigarette pack is output from the clamping mechanism. The rotation angle of the clamping mechanism from the first position to the second position is 180°.

[0013] Optionally, the second suction hood is provided with multiple second suction ports. When the clamping mechanism moves from the first position to the second position, it passes through each second suction port in sequence. The second suction hood is connected to the workshop dust collection system. The workshop dust collection system can provide negative pressure to the second suction hood. The control valve is located between the second suction hood and the workshop dust collection system.

[0014] Optionally, the projection of the second suction hood is a semi-circle along the axial direction of the rotation axis; the axis of the second suction hood coincides with the axis of the rotation axis, and the minimum distance between the clamping mechanism and the inner wall of the second suction hood is 30-50mm along the radial direction of the rotation axis.

[0015] Optionally, a pressure-dividing chamber is provided on the outer periphery of the second suction hood, and the air outlet of each second suction port is connected to the pressure-dividing chamber. An air outlet is provided on the pressure-dividing chamber and is connected to the workshop dust collection system. The air outlet is located at the midpoint of the pressure-dividing chamber, and the opening area of ​​the second suction port is proportional to the distance from the center of the second suction port to the center of the air outlet.

[0016] Optionally, it also includes a first purging mechanism, which includes multiple jet nozzle groups, each jet nozzle group being disposed on the second guard plate, with the output end of each jet nozzle group facing the cigarette mold box.

[0017] Optionally, the nozzle assembly includes a first nozzle and a second nozzle arranged sequentially along a first direction. The output direction of the first nozzle forms a 45° angle with the bottom surface of the cigarette mold box, and the output direction of the second nozzle forms a 30° angle with the bottom surface of the cigarette mold box.

[0018] Optionally, the distance between the first jet nozzle and the second jet nozzle is greater than or equal to the width of the pulley mold box along the first direction.

[0019] Optionally, it also includes a second purging mechanism, which includes:

[0020] The third jet nozzle is located on the lower edge of the second suction hood, with the output end of the third jet nozzle facing the first position;

[0021] The high-pressure air pump has its output end connected to the third jet nozzle. When the clamping mechanism passes through the first position, the control unit can control the high-pressure air pump to output high-pressure airflow to the third jet nozzle.

[0022] Optionally, the detection unit is an image acquisition unit, capable of acquiring real-time images of the cigarette packs entering the detection area and transmitting them to the control unit; the control unit includes:

[0023] The storage module contains preset cleaning images;

[0024] The interaction module, electrically connected to the storage module and the detection unit, is used to input clean images to the storage module and display real-time images received from the detection unit;

[0025] The processing module is electrically connected to the interaction module, storage module, high-pressure air pump and control valve. It is used to retrieve cleaning images from the storage module and compare the real-time images with the cleaning images. When the real-time images are inconsistent with the cleaning images, the processing module controls the control valve to increase its opening after a set delay time and controls the high-pressure air pump to increase its output efficiency.

[0026] Optionally, the time setting satisfies the following functional relationship:

[0027] T = A - B

[0028] Where T is the set time, A is the time required for the pusher to push the cigarette pack from the output end of the conveying mechanism to the clamping mechanism, and B is the time required for the processing module to compare the real-time image with the clean image.

[0029] The present invention also provides a control method for controlling the dust removal system described in any of the preceding claims, the control method comprising:

[0030] Acquire real-time images of the cigarette packs after they have passed through the output end of the output mechanism;

[0031] Compare the real-time images with the clean images of the cigarette packs;

[0032] Determine whether the real-time image is consistent with the cleaned image;

[0033] If not, the opening of the control valve will be increased after a set delay time, and the output efficiency of the high-pressure air pump will be increased.

[0034] Optionally, the time setting satisfies the following functional relationship:

[0035] T = A - B

[0036] Where T is the set time, A is the time required for the pusher to push the cigarette pack from the output end of the conveying mechanism to the clamping mechanism, and B is the time required for the processing module to compare the real-time image with the clean image.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] The embodiments of the present invention, by setting a first suction hood on one side of the conveying mechanism and a second suction hood above the flipping mechanism, can suck up the tobacco dust on the surface of the cigarette pack during the conveying process; a detection unit is set at the output end of the conveying device to detect the cigarette pack output by the conveying device, and the opening of the control valve is adjusted according to the detection signal output by the detection unit, so that the second suction hood can promptly suck up the tobacco dust remaining on the surface of the cigarette pack, greatly improving the cleanliness of the cigarette pack surface, preventing tobacco dust from entering the cigarette pack with the cigarette pack, and improving product quality. Attached Figure Description

[0039] Figure 1 This diagram shows a schematic representation of the structure of a cigarette conveying device according to an embodiment of the present invention.

[0040] Figure 2 This diagram shows a structural schematic of a conveying mechanism and a first suction hood provided in an embodiment of the present invention;

[0041] Figure 3 It shows Figure 1 A cross-sectional view of the conveying mechanism and the first suction hood shown;

[0042] Figure 4 This diagram illustrates the structure of a second suction hood according to an embodiment of the present invention.

[0043] Figure 5 It shows Figure 3 A cross-sectional view of the second suction hood shown;

[0044] Figure 6 This diagram illustrates the structure of a second suction hood provided in another embodiment of the present invention.

[0045] Figure 7 A flowchart of a control method provided by an embodiment of the present invention is shown.

[0046] Figure label:

[0047] 1. Conveying mechanism, 2. Tilting mechanism, 3. Cigarette pusher, 4. First suction hood, 5. Second suction hood, 6. Cigarette assembly, 7. Synchronous pulley, 8. Synchronous belt, 9. Cigarette mold box, 10. First guard plate, 11. Second guard plate, 12. First air inlet, 13. Rotating shaft, 14. Clamping mechanism, 15. Second air inlet, 16. Pressure dividing chamber, 17. First air nozzle, 18. Second air nozzle, 19. Third air nozzle, 20. Air outlet. Detailed Implementation

[0048] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention is presented in conjunction with preferred embodiments, this does not mean that the features of the invention are limited to these embodiments. On the contrary, the purpose of describing the invention in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of the present invention. To provide a deep understanding of the invention, many specific details will be included in the following description. The invention may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of the invention, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0049] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0050] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of the invention is usually placed in during 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0051] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0052] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0053] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0054] Embodiments of the present invention provide a dust removal system for a cigarette pack conveying device, such as... Figure 1 As shown, the cigarette conveying device includes a conveying mechanism 1 and a tilting mechanism 2 arranged sequentially along the conveying direction of the cigarette group 6. A cigarette pusher 3 is provided between the conveying mechanism 1 and the tilting mechanism 2, and the cigarette pusher 3 is used to push the cigarette group 6 output from the conveying mechanism 1 into the tilting mechanism 2; the dust removal system includes:

[0055] The first suction hood 4 is located on one side of the conveying mechanism 1. The first suction hood 4 is used to suck up the cigarette dust on the surface of the cigarette group 6 on the conveying mechanism 1.

[0056] The second suction hood 5 is located above the flipping mechanism 2. The second suction hood 5 is used to suck up the cigarette dust on the surface of the cigarette assembly 6 on the flipping mechanism 2.

[0057] The control valve is connected to the second suction hood 5 and is used to control the airflow of the suction hood.

[0058] The detection unit is located above the output end of the conveying mechanism 1. The detection unit is used to detect the tobacco dust on the surface of the cigarette group 6 that runs to the output end of the output mechanism and outputs a detection signal.

[0059] The control unit is electrically connected to the detection unit and the control valve. The control system can adjust the opening degree of the control valve according to the detection signal.

[0060] By adopting the above technical solution, by setting a first suction hood 4 on one side of the conveying mechanism 1 and a second suction hood 5 above the flipping mechanism 2, the cigarette dust on the surface of the cigarette group 6 can be sucked up during the conveying process. A detection unit is set at the output end of the conveying device to detect the cigarette group 6 output by the conveying device. The control unit can determine whether there is cigarette dust on the upper surface of the cigarette group 6 by analyzing the detection signal. When there is cigarette dust on the upper surface of the cigarette group 6, the control system can increase the opening of the control valve so that the second suction hood 5 can remove the residual cigarette dust on the surface of the cigarette group 6 in a timely and efficient manner, which greatly improves the cleanliness of the surface of the cigarette group 6, prevents cigarette dust from entering the cigarette pack with the cigarette group 6, and improves product quality.

[0061] Furthermore, such as Figure 2 As shown, the conveying mechanism 1 includes a synchronous pulley 7, a synchronous belt 8 sleeved on the synchronous pulley 7, and a cigarette mold box 9 disposed on the outer surface of the synchronous belt 8. The cigarette mold box 9 is used to store cigarette sets 6; the synchronous pulley 7 can drive the cigarette mold box 9 along a first direction ( Figure 2 The conveying mechanism 1 operates in the M direction; a first guard plate 10 and a second guard plate 11 are respectively provided on both sides, and the first guard plate 10 and the second guard plate 11 are parallel. Specifically, as shown in the figure... Figure 2 As shown, the axis of the cigarettes inside the cigarette mold box 9 is perpendicular to the first direction. The first guard plate 10 and the second guard plate 11 can restrict the movement of the cigarettes towards the axis of the cigarettes, so that the ends of each cigarette in the cigarette group 6 are aligned, thereby improving the packaging quality. Figure 1 As shown, the first guard plate 10 and the second guard plate 11 are not provided at the output end of the conveying mechanism 1, so that the cigarette pusher 3 can extend into the cigarette mold box 9 located at the output end of the conveying mechanism 1 and push the cigarette assembly 6 out of the cigarette mold box 9. A conveying channel is provided between the output end of the conveying mechanism 1 and the input end of the flipping mechanism 2. The cigarette pusher 3 can push the cigarette assembly 6 into the conveying channel and push the cigarette assembly 6 along the conveying channel to the input end of the flipping mechanism 2.

[0062] Furthermore, the first suction hood 4 is disposed on the first protective plate 10, and the first suction hood 4 is provided with a plurality of first suction ports 12 arranged sequentially along the first direction. When the cigarette mold box 9 moves along the first direction, it passes through each of the first suction ports 12 in sequence. The first suction hood 4 is connected to the workshop dust collection system, which can provide negative pressure for the first suction hood 4. Specifically, the workshop dust collection system includes a negative pressure fan and a dust collection channel. The air inlet end of the dust collection channel is connected to the first suction hood 4, and the air outlet end is connected to the air inlet of the negative pressure fan. The negative pressure fan can generate low air pressure in the dust collection channel, causing the airflow in the first suction hood 4 to flow into the dust collection channel. This airflow can carry the cigarette dust on the surface of the cigarette assembly 6 in the cigarette mold box 9 through the dust collection channel into the workshop dust collection system.

[0063] Furthermore, the flipping mechanism 2 includes a rotating shaft 13 and a clamping mechanism 14 connected to the rotating shaft 13. The clamping mechanism 14 is used to store the cigarette set 6. The rotating shaft 13 can drive the clamping mechanism 14 to rotate around the axis of the rotating shaft 13 between a first position and a second position (rotation direction as shown in the figure). Figure 5 (As shown in the X direction), where the first position is the input end of the flipping mechanism 2. When the clamping mechanism 14 moves to the first position, the cigarette pusher 3 can push the cigarette set 6 into the clamping mechanism 14. When the clamping mechanism 14 moves to the second position, the cigarette set 6 is output from the clamping mechanism 14. The rotation angle of the clamping mechanism 14 from the first position to the second position is 180°. After flipping, the cigarette set 6 enters the aluminum foil packaging process.

[0064] Furthermore, the second suction hood 5 is provided with multiple second suction ports 15. When the clamping mechanism 14 moves from the first position to the second position, it passes through each second suction port 15 in sequence. The second suction hood 5 is connected to the workshop dust collection system, which can provide negative pressure to the second suction hood 5. A control valve is located between the second suction hood 5 and the workshop dust collection system. Specifically, the workshop dust collection system includes a negative pressure fan and a dust collection channel. The air inlet of the dust collection channel is connected to the second suction hood 5. The negative pressure fan can generate low air pressure in the dust collection channel, causing the airflow in the second suction hood 5 to flow into the dust collection channel. This airflow can drive the tobacco dust on the surface of the cigarette assembly 6 in the clamping mechanism 14 through the dust collection channel into the workshop dust collection system.

[0065] In this embodiment, along the axial direction of the rotation axis 13, the projection of the second suction hood 5 is a semi-circle (e.g., Figure 4 and Figure 5 (As shown). This allows the clamping mechanism 14 to sequentially pass through the air inlet ends of each of the second air inlets 15 on the second air inlet hood 5 during rotation. In another embodiment, as... Figure 1 and Figure 6 As shown, due to space limitations, the second suction hood 5 can be installed only between the first and second positions, near the first position. Because the clamping mechanism 14 drives the cigarette assembly 6 from the first position, most of the cigarette dust at the end of the cigarette is thrown out near the first position. Therefore, installing the second suction hood 5 at the first position can remove most of the cigarette dust. Cigarette dust farther from the first position will also float to the vicinity of the first position during its descent, and then be sucked into the second suction port 15. This design achieves both efficient installation in a confined space and maximizes dust removal efficiency.

[0066] Furthermore, the axis of the second suction hood 5 coincides with the axis of the rotating shaft 13, and along the radial direction of the rotating shaft 13, the minimum distance between the clamping mechanism 14 and the inner wall of the second suction hood 5 is 30-50mm. Within this distance range, the cigarette dust falling from the cigarette assembly 6 can be promptly sucked away by the second suction port 15 without falling downwards, thus improving cleaning efficiency.

[0067] Furthermore, a pressure-distributing chamber 16 is provided on the outer periphery of the second suction hood 5, and the air outlet of each second suction port 15 is connected to the pressure-distributing chamber 16. The pressure-distributing chamber 16 is provided with an air outlet, which is connected to the workshop dust collection system. The smoke particles scattered inside the second suction hood 5 can enter the pressure-distributing chamber 16 with the airflow (the airflow direction is as follows). Figure 5 and Figure 6 (As shown in Y); the airflow in the pressure-distributing chamber 16 can carry the smoke particles through the air outlet into the dust collection channel (airflow direction as shown in Y). Figure 5 and Figure 6 (As shown in Figure Z). In this embodiment, the air outlet is located at the midpoint of the pressure-distributing chamber 16, and the opening area of ​​the second air intake 15 is proportional to the distance from the center of the second air intake 15 to the center of the air outlet. The distance from the center of the second air intake 15 to the center of the air outlet is the distance along the extending direction of the pressure-distributing chamber 16. Along the extending direction of the pressure-distributing chamber 16, the opening area of ​​the second air intake 15 closer to the air outlet is smaller, and the opening area of ​​the second air intake 15 farther from the air outlet is larger. This ensures that the airflow in each second air intake 15 is consistent, improving cleaning efficiency and avoiding the situation where, when the opening areas of all second air intake 15 are the same, the airflow in the second air intake 15 farther from the air outlet is too small to completely remove smoke.

[0068] Furthermore, the pressure inside the dust collection channel is -300 to -1000 Pa. Specifically, the pressure inside the dust collection channel is lower than the pressure inside the second suction hood 5 and the first suction hood 4, causing airflow to flow from inside the second suction hood 5 and the first suction hood 4 into the dust collection channel. At this time, the pressure inside the dust collection channel is lower than atmospheric pressure, i.e., negative pressure. The pressure inside the dust collection channel is 300-1000 Pa lower than atmospheric pressure. Within this pressure range, the airflow flowing into the dust collection channel from the second suction hood 5 and the first suction hood 4 can remove the flying smoke dust inside the second suction hood 5 and the first suction hood 4 without damaging the cigarettes in the cigarette pack 6.

[0069] Furthermore, such as Figure 1As shown, the dust removal system also includes a first blowing mechanism, which comprises multiple jet nozzle groups. Each jet nozzle group is mounted on the second guard plate 11, and the output end of each jet nozzle group faces the cigarette mold box 9. Specifically, the output end of each jet nozzle group faces the upper surface of the cigarette group 6 in the cigarette mold box 9 and sprays airflow onto the cigarette group 6 to lift the cigarette dust on the upper surface of the cigarette group 6. Subsequently, the lifted cigarette dust is sucked away by the first suction hood 4, improving the efficiency of cigarette dust removal.

[0070] Furthermore, the nozzle assembly includes a first nozzle 17 and a second nozzle 18 arranged sequentially along a first direction. The output direction of the first nozzle 17 forms a 45° angle with the bottom surface of the cigarette mold box 9 (e.g., Figure 3 (As shown in angle β), the output direction of the second jet nozzle 18 forms a 30° angle with the bottom surface of the cigarette mold box 9 (as shown in angle β). Figure 3 (As shown by angle α). Specifically, the first included angle and the second included angle are different, so that the first air nozzle 17 and the second air nozzle 18 can blow on different areas of the cigarette mold box 9, avoiding the formation of cleaning dead corners and improving dust removal efficiency.

[0071] Furthermore, the distance between the first air nozzle 17 and the second air nozzle 18 is greater than or equal to the width of the pulley mold box along the first direction. This avoids the airflow from the first air nozzle 17 and the second air nozzle 18 from simultaneously entering the same cigarette mold box 9 and interfering with each other, thus affecting the purging effect and improving purging efficiency.

[0072] Furthermore, it also includes a second purging mechanism, which comprises:

[0073] The third air nozzle 19 is located on the lower edge of the second suction hood 5, with its output end facing the first position. Specifically, before the cigarette pusher 3 pushes the cigarette assembly 6 into the clamping mechanism 14, the output end of the third air nozzle 19 sprays air towards the clamping mechanism 14 to remove tobacco dust from the clamping mechanism 14 and prevent the cigarette assembly 6 from being contaminated with tobacco dust after entering the clamping mechanism 14. When the cigarette assembly 6 approaches the clamping mechanism 14 from the conveying channel, the third air nozzle 19 can blow away the upper surface of the cigarette assembly 6, thereby raising the tobacco dust on the surface of the cigarette assembly 6, making it easier for the second suction hood 5 to remove the tobacco dust. After the cigarette pusher 3 pushes the cigarette assembly 6 into the clamping mechanism 14, the output end of the third air nozzle 19 sprays air towards the cigarette assembly 6 in the clamping mechanism 14, especially blowing away the ends of the cigarettes in the cigarette assembly 6, raising the tobacco dust, making it easier for the second suction hood 5 to remove the tobacco dust.

[0074] The high-pressure air pump has its output end connected to the third jet nozzle 19. When the clamping mechanism 14 passes through the first position, the control unit can control the high-pressure air pump to output high-pressure airflow to the third jet nozzle 19.

[0075] Furthermore, the detection unit is an image acquisition unit, capable of acquiring real-time images of the cigarette bundles 6 entering the detection area and transmitting them to the control unit; specifically, the detection unit takes pictures of the upper surface of each cigarette bundle 6 that runs to the output end of the conveying mechanism 1 to obtain real-time images, with each real-time image corresponding one-to-one with each cigarette bundle 6; the control unit includes:

[0076] The storage module stores preset cleaning images; specifically, the cleaning images are photographic sampling images of the upper surface of the cigarette pack 6, which is clean and free of tobacco dust.

[0077] The interaction module, electrically connected to the storage module and the detection unit, is used to input clean images to the storage module and display real-time images received from the detection unit;

[0078] The processing module, electrically connected to the interaction module, storage module, high-pressure air pump, and control valve, is used to retrieve cleaning images from the storage module and compare real-time images with the cleaning images. Specifically, the cleaning images have multiple detection areas. The processing module can analyze the real-time images to identify the recognition areas corresponding to each detection area and compare each recognition area with each detection area. When the real-time images and cleaning images are inconsistent, it indicates that the upper surface of the cigarette assembly 6 contains tobacco dust. The processing module controls the control valve to increase its opening after a set delay and controls the high-pressure air pump to increase its output efficiency, thereby strengthening the blowing force of the second blowing mechanism on the surface of the cigarette assembly 6 and the airflow speed in the second suction hood 5.

[0079] To improve the efficiency of smoke removal, the set time should satisfy the following functional relationship:

[0080] T = A - B

[0081] Where T is the set time, A is the time required for the pusher 3 to push the cigarette assembly 6 from the output end of the conveying mechanism 1 to the clamping mechanism 14, and B is the time required for the processing module to compare the real-time image with the clean image. Specifically, before the pusher 3 pushes the cigarette assembly 6 out of the output end of the conveying mechanism 1, the detection unit acquires a real-time image of the cigarette assembly 6; subsequently, as the pusher 3 pushes the cigarette assembly 6 out, the detection unit transmits the real-time image to the processing module; when the processing module completes the comparison between the real-time image and the clean image, the cigarette assembly 6 has moved to a specific position between the conveying mechanism 1 and the flipping mechanism 2, and the time required for the cigarette assembly 6 to move from this specific position to the flipping mechanism 2 is T. Therefore, if there is tobacco dust on the surface of the cigarette assembly 6, the force of blowing and sucking away the tobacco dust on the cigarette assembly 6 needs to be increased after the processing module outputs a control signal T to the control valve and the high-pressure air pump.

[0082] Embodiments of the present invention also provide a control method for controlling the dust removal system of any of the foregoing claims. The control method includes, for example... Figure 7 As shown, it includes:

[0083] Acquire real-time images of cigarette group 6 passing through the output end of the output mechanism;

[0084] Compare the real-time image with the clean image of cigarette group 6;

[0085] Determine whether the real-time image is consistent with the cleaned image;

[0086] If not, the opening of the control valve is increased after a set delay time, and the output efficiency of the high-pressure air pump is increased. This strengthens the purging force of the second purging mechanism on the surface of the cigarette assembly 6 and increases the airflow velocity in the second suction hood 5, thereby improving the efficiency of cigarette dust removal.

[0087] The set time satisfies the following functional relationship:

[0088] T = A - B

[0089] Where T is the set time, A is the time required for the pusher 3 to push the cigarette pack 6 from the output end of the conveying mechanism 1 to the clamping mechanism 14, and B is the time required for the processing module to compare the real-time image with the clean image.

[0090] While the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the invention to these descriptions. Various changes in form and detail can be made by those skilled in the art, including several simple deductions or substitutions, without departing from the spirit and scope of the invention.

Claims

1. A dust removal system for a cigarette pack conveying device, the cigarette pack conveying device comprising a conveying mechanism and a turning mechanism arranged sequentially along the cigarette pack conveying direction, wherein a cigarette pusher is provided between the conveying mechanism and the turning mechanism, the cigarette pusher being used to push the cigarette pack output by the conveying mechanism into the turning mechanism; characterized in that, The dust removal system includes: A first suction hood is disposed on one side of the conveying mechanism. The first suction hood is used to suck up the cigarette dust on the surface of the cigarette pack on the conveying mechanism. The second suction hood is located above the flipping mechanism and is used to suck up the cigarette dust on the surface of the cigarette assembly on the flipping mechanism. A control valve is connected to the second suction hood, and the control valve is used to control the flow rate of air suctioned by the second suction hood; A detection unit is located above the output end of the conveying mechanism. The detection unit is used to detect the tobacco dust on the surface of the cigarette pack that has reached the output end of the conveying mechanism and output a detection signal. The control unit is electrically connected to the detection unit and the control valve, and the control unit can adjust the opening degree of the control valve according to the detection signal.

2. The dust removal system as described in claim 1, characterized in that, The conveying mechanism includes a synchronous pulley, a synchronous belt sleeved on the synchronous pulley, and a cigarette mold box disposed on the outer surface of the synchronous belt. The cigarette mold box is used to store the cigarette assembly. The synchronous pulley can drive the cigarette mold box to run in a first direction. The two sides of the conveying mechanism are respectively provided with a first guard plate and a second guard plate, and the first guard plate and the second guard plate are parallel to each other.

3. The dust removal system as described in claim 2, characterized in that, The first suction hood is disposed on the first protective plate, and the first suction hood is provided with a plurality of first suction ports arranged sequentially along the first direction. When the cigarette mold box runs along the first direction, it passes through each of the first suction ports in sequence. The first suction hood is connected to the workshop dust collection system, and the workshop dust collection system can provide negative pressure for the first suction hood.

4. The dust removal system as described in claim 2, characterized in that, The flipping mechanism includes a rotating shaft and a clamping mechanism connected to the rotating shaft. The clamping mechanism is used to store the cigarette set. The rotating shaft can drive the clamping mechanism to rotate around the axis of the rotating shaft between a first position and a second position. When the clamping mechanism moves to the first position, the cigarette pusher can push the cigarette set into the clamping mechanism. When the clamping mechanism moves to the second position, the cigarette set is output from the clamping mechanism. The rotation angle of the clamping mechanism from the first position to the second position is 180°.

5. The dust removal system as described in claim 4, characterized in that, The second suction hood is provided with multiple second suction ports. When the clamping mechanism moves from the first position to the second position, it passes through each of the second suction ports in sequence. The second suction hood is connected to the workshop dust collection system. The workshop dust collection system can provide negative pressure to the second suction hood. The control valve is located between the second suction hood and the workshop dust collection system.

6. The dust removal system as described in claim 5, characterized in that, Along the axial direction of the rotation axis, the projection of the second suction hood is a semi-circle; the axis of the second suction hood coincides with the axis of the rotation axis, and along the radial direction of the rotation axis, the minimum distance between the clamping mechanism and the inner wall of the second suction hood is 30-50mm.

7. The dust removal system as described in claim 6, characterized in that, The outer periphery of the second suction hood is provided with a pressure-dividing chamber, and the air outlet of each of the second suction ports is respectively connected to the pressure-dividing chamber. The pressure-dividing chamber is provided with an air outlet, and the air outlet is connected to the workshop dust collection system. The air outlet is located at the midpoint of the pressure-dividing chamber, and the opening area of ​​the second suction port is proportional to the distance from the center of the second suction port to the center of the air outlet.

8. The dust removal system as described in any one of claims 2 to 7, characterized in that, It also includes a first purging mechanism, which includes multiple jet nozzle groups, each of which is disposed on the second protective plate, and the output end of each of which faces the cigarette mold box.

9. The dust removal system as described in claim 8, characterized in that, The jet nozzle assembly includes a first jet nozzle and a second jet nozzle arranged sequentially along a first direction. The output direction of the first jet nozzle forms a 45° angle with the bottom surface of the cigarette mold box, and the output direction of the second jet nozzle forms a 30° angle with the bottom surface of the cigarette mold box.

10. The dust removal system as described in claim 9, characterized in that, The distance between the first nozzle and the second nozzle is greater than or equal to the width of the cigarette mold box along the first direction.

11. The dust removal system as described in claim 4 or 5, characterized in that, It also includes a second purging mechanism, which includes: The third jet nozzle is located on the lower edge of the second suction hood, with the output end of the third jet nozzle facing the first position; A high-pressure air pump, the output end of which is connected to the third jet nozzle, and when the clamping mechanism passes through the first position, the control unit can control the high-pressure air pump to output high-pressure airflow to the third jet nozzle.

12. The dust removal system as described in claim 11, characterized in that, The detection unit is an image acquisition device, capable of acquiring real-time images of cigarette packs entering the detection area and transmitting them to the control unit; the control unit includes: A storage module, wherein the storage module stores preset cleaning images; An interactive module, electrically connected to the storage module and the detection unit, is used to input the cleaning image into the storage module and display the real-time image received from the detection unit; The processing module is electrically connected to the interaction module, the storage module, the high-pressure air pump, and the control valve. It is used to retrieve the cleaning image from the storage module and compare the real-time image with the cleaning image. When the real-time image is inconsistent with the cleaning image, the processing module controls the control valve to increase its opening after a set delay time and controls the high-pressure air pump to increase its output efficiency.

13. The dust removal system as described in claim 12, characterized in that, The set time satisfies the following functional relationship: T = A - B Where T is the set time, A is the time required for the pusher to push the cigarette pack from the output end of the conveying mechanism to the clamping mechanism, and B is the time required for the processing module to compare the real-time image with the clean image.

14. A control method for controlling the dust removal system according to claim 12 or 13, characterized in that, The control method includes: Acquire a real-time image of the cigarette pack passing through the output end of the conveying mechanism; The real-time image is compared with the clean image of the cigarette pack; Determine whether the real-time image is consistent with the clean image; If not, the opening of the control valve is increased after a set delay time, and the output efficiency of the high-pressure air pump is increased.

15. The control method as described in claim 14, characterized in that, The set time satisfies the following functional relationship: T = A - B Where T is the set time, A is the time required for the pusher to push the cigarette pack from the output end of the conveying mechanism to the clamping mechanism, and B is the time required for the processing module to compare the real-time image with the clean image.

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