Cigarette defect detection and rejection apparatus

Abstract

This utility model relates to the field of cigarette packaging technology and discloses a cigarette defect detection and rejection device, including a cigarette lowering unit, a detection unit, a cigarette pushing unit, and a rejection execution unit. The cigarette lowering unit includes multiple sets of spaced-apart cigarette lowering channels, each set of channels having a detection area and a rejection area. The detection unit is correspondingly set to the detection area and is used to detect whether there are quality problems with the cigarettes in the lowering channel. The cigarette pushing unit is set at the bottom of the lowering channel and includes multiple sets of independently driven cigarette pushing spools, each set of channels corresponding to a set of pushing spools, which are used to push out the cigarettes falling in the corresponding lowering channel. The rejection execution unit is correspondingly set to the rejection area and is used to reject the single cigarette with defects detected when the pushing spool corresponding to the lowering channel where the defective cigarette is located stops working. Rejection is more effective when the defective cigarette is in a stationary state. The independently driven pushing spools improve the effective operating rate of the unit.

Description

Technical Field

[0001] This utility model relates to the field of cigarette packaging technology, and in particular to a device for detecting and rejecting cigarette defects. Background Technology

[0002] In cigarette packaging production, defect detection of cigarette sticks is a crucial step in ensuring product quality. Existing technologies suffer from two typical problems:

[0003] 1. Limitations of the whole-pack rejection mode: Traditional packaging machines detect defects at the cigarette pack forming mold position. Once problems such as empty parts are found, the whole pack is rejected, resulting in serious waste of raw and auxiliary materials and affecting the continuous operation of subsequent materials such as aluminum foil, thus reducing the effective operating rate of the equipment.

[0004] 2. Defects of single-cigarette rejection technology: Some technologies use high-speed airflow to reject single defective cigarettes during the descent of the cigarettes in the lower cigarette storage channel, but this has the problems of a short time window and extremely high positional accuracy requirements. It is easy to cause cigarette jamming or other cigarettes to be arranged in a disordered manner, resulting in machine shutdown and failure to meet the actual production assessment indicators of the cigarette factory.

[0005] Therefore, there is an urgent need for a technology that can achieve accurate detection, static rejection of individual cigarettes, and avoid interfering with the arrangement of other cigarettes during the cigarette packaging process, in order to reduce losses, improve equipment operating efficiency, and have versatility to adapt to different types of cigarettes. Utility Model Content

[0006] The purpose of this invention is to propose a defect detection and rejection device for cigarettes, which solves the problems in the prior art where rejecting whole packs results in material waste and reduced equipment efficiency; and where rejecting single cigarettes has a short time window and requires extremely high positional accuracy, which can easily cause cigarette jamming or other cigarettes to be arranged in a disordered manner, leading to machine downtime and failure to meet the actual production assessment indicators of cigarette factories.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] This utility model provides a device for detecting and rejecting defective cigarettes, including:

[0009] The lower smoke storage unit includes multiple sets of spaced lower smoke channels. Each set of lower smoke channels is provided with a detection area and a rejection area. The rejection area is located below the detection area.

[0010] The detection unit is set up one-to-one with the detection area and is used to detect whether there are quality problems with the cigarettes in the lower smoke channel;

[0011] A cigarette pusher unit is located at the bottom of the lower smoke channel. The cigarette pusher unit includes multiple independently driven cigarette pushers. Each lower smoke channel is equipped with a set of cigarette pushers. The cigarette pushers are used to push out the cigarettes that fall into the corresponding lower smoke channel.

[0012] The rejection execution unit is set up in correspondence with the rejection area and is used to reject the single cigarette with defects when the pusher corresponding to the lower smoke channel where the defective cigarette is located stops working.

[0013] The cigarette defect detection and rejection device includes a lower cigarette storage unit comprising multiple sets of spaced lower cigarette channels. Each set of lower cigarette channels is equipped with a detection area and a rejection area. The rejection area is located below the detection area. The detection area is equipped with a detection unit to detect whether there are quality problems with the cigarettes in the lower cigarette channel. The rejection area is equipped with a rejection execution unit to reject single cigarettes with defects detected. A cigarette pushing unit is set at the bottom of the lower cigarette channel. The cigarette pushing unit includes multiple sets of independently driven cigarette pushing rollers. Each set of lower cigarette channels is equipped with a set of cigarette pushing rollers to push out the cigarettes falling in the corresponding lower cigarette channel. This cigarette defect detection and rejection device removes defective cigarettes such as empty-headed and reverse-direction cigarettes before they are grouped, avoiding the problem of entire packs of cigarettes being rejected in traditional methods. This effectively reduces the loss of cigarettes and raw materials, and improves the utilization rate of raw materials. Moreover, when the rejection unit removes defective cigarettes, the cigarette pusher corresponding to the lower cigarette channel where the defective cigarette is located is stopped, and the defective cigarette is completely stationary, creating ample processing time for accurate rejection and achieving better rejection results without affecting the arrangement of other cigarettes. In addition, each group of cigarette pushers is driven independently, so that if one group of lower cigarette channels fails and stops, other lower cigarette channels continue to push cigarettes, achieving uninterrupted unit operation and improving the effective operating rate of the unit.

[0014] As a preferred embodiment of the above-mentioned cigarette defect detection and rejection equipment, the detection area and the rejection area correspond to the entire group of cigarettes, the cigarette pushing action pushes out the entire group of cigarettes, and the entire group of cigarettes detected in the detection area falls completely into the rejection area.

[0015] The above setup ensures that the cigarettes pushed out by the cigarette pusher in each operation form a cigarette group, which facilitates the packaging of the cigarette group; moreover, the detection area and the rejection area correspond to the entire group of cigarettes respectively. During detection, the entire group of cigarettes is checked for defects. After the cigarette pusher pushes out a group of cigarettes, the cigarette group corresponding to the detection area falls into the rejection area, which facilitates the rejection of individual cigarettes with defects in this group of cigarettes.

[0016] As a preferred embodiment of the above-mentioned cigarette defect detection and rejection equipment, a detection window is provided on the back panel of the lower cigarette storage unit, and each group of lower cigarette channels is provided with the detection window. The area of ​​the lower cigarette channel corresponding to the detection window is the detection area. The detection window displays the tobacco end face of the entire group of cigarettes, and the detection unit is set up in correspondence with the detection window.

[0017] The detection window is designed to facilitate the detection unit to inspect the tobacco end face of the entire set of cigarettes.

[0018] As a preferred embodiment of the aforementioned cigarette defect detection and rejection equipment, the lower smoke channel includes an upper smoke channel and a lower smoke channel that are connected sequentially from top to bottom. The detection area and the rejection area are both located in the upper smoke channel, and the smoke pusher is located at the bottom of the lower smoke channel.

[0019] The upper flue of the lower flue is used for the detection and removal of defective cigarettes, while the lower flue is used for the temporary storage of cigarettes.

[0020] As a preferred embodiment of the above-mentioned cigarette defect detection and rejection equipment, the upper flue and the side wall corresponding to the back plate are provided with an openable first protective door. After the first protective door is opened, the rejection execution unit rejects the single cigarette with defects.

[0021] The first protective door is used to control the opening and closing of the upper flue, so that the actuator can remove defective single cigarettes.

[0022] As a preferred embodiment of the aforementioned cigarette defect detection and rejection equipment, a second protective door that can be opened and closed is provided on the side wall corresponding to the lower flue and the back plate.

[0023] The second protective door is installed to control the opening and closing of the lower flue, so as to tidy it up when there is a disordered arrangement of cigarettes in the lower flue.

[0024] As a preferred embodiment of the aforementioned cigarette defect detection and rejection equipment, the lower cigarette storage unit includes:

[0025] The state adjustment device includes multiple sets of state adjustment units, each set of which is provided at the top of the lower smoke channel, for adjusting the state of the cigarette entering the lower smoke channel.

[0026] The state adjustment device is used to adjust the state of the cigarettes as they enter the lower cigarette channel to facilitate subsequent cigarette packaging.

[0027] As a preferred embodiment of the above-mentioned cigarette defect detection and rejection equipment, the state adjustment unit includes multiple sets of parallel and spaced agitator rollers. The agitator rollers are rotatably arranged, and the cigarette enters the lower cigarette channel through the gap between the two sets of agitator rollers in a direction parallel to the agitator rollers.

[0028] The rotation of the stirring rollers causes the cigarettes to enter the lower smoke channel through the gap between the two sets of stirring rollers in a direction parallel to the stirring rollers, thus arranging the cigarettes neatly.

[0029] As a preferred embodiment of the above-mentioned cigarette defect detection and rejection equipment, the detection unit includes a detector and a controller. Both the detector and the rejection execution unit are connected to the controller. The detector is used to detect the tobacco end face information of the cigarette in the detection area and feed it back to the controller. The controller determines whether the cigarette has a defect based on the tobacco end face information and sends a control signal to the rejection execution unit.

[0030] The aforementioned detection unit can automate the detection and rejection of defective cigarettes.

[0031] As a preferred embodiment of the above-mentioned cigarette defect detection and rejection equipment, the rejection execution unit is a clamping device, which clamps a single cigarette with a defect;

[0032] Alternatively, the rejection unit may be an adsorption device used to adsorb defective single cigarettes;

[0033] Alternatively, the rejection unit may be a blowing device used to blow out defective single cigarettes;

[0034] Alternatively, the rejection unit may include a pusher for pushing out defective single cigarettes.

[0035] The rejection execution unit can reject defective single cigarettes using any of the above methods.

[0036] The beneficial effects of this utility model are:

[0037] The present invention proposes a cigarette defect detection and rejection device, comprising multiple sets of spaced-apart lower cigarette channels. Each set of lower cigarette channels is provided with a detection area and a rejection area. The rejection area is located below the detection area. The detection area is provided with a detection unit for detecting whether there are quality problems with the cigarettes in the lower cigarette channel. The rejection area is provided with a rejection execution unit for rejecting single cigarettes with defects detected. A cigarette pushing unit is provided at the bottom of the lower cigarette channel. The cigarette pushing unit includes multiple sets of independently driven cigarette pushing strips. Each set of lower cigarette channels is provided with a set of cigarette pushing strips for pushing out the cigarettes falling into the corresponding lower cigarette channel. This cigarette defect detection and rejection device removes defective cigarettes such as empty-headed and reverse-direction cigarettes before they are grouped, avoiding the problem of entire packs of cigarettes being rejected in traditional methods. This effectively reduces the loss of cigarettes and raw materials, and improves the utilization rate of raw materials. Moreover, when the rejection unit removes defective cigarettes, the cigarette pusher corresponding to the lower cigarette channel where the defective cigarette is located is stopped, and the defective cigarette is completely stationary, creating ample processing time for accurate rejection and achieving better rejection results without affecting the arrangement of other cigarettes. In addition, each group of cigarette pushers is driven independently, so that if one group of lower cigarette channels fails and stops, other lower cigarette channels continue to push cigarettes, achieving uninterrupted unit operation and improving the effective operating rate of the unit. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the structure of the cigarette defect detection and rejection device provided by this utility model, without showing the rejection execution unit;

[0039] Figure 2 This is a schematic diagram of the structure of the cigarette defect detection and rejection equipment provided by this utility model when rejecting defective cigarettes;

[0040] Figure 3 This is a schematic diagram of the display window of the cigarette defect detection and rejection equipment provided by this utility model;

[0041] Figure 4 This is a structural diagram of the lower smoke channel provided by this utility model, showing the detection area and the rejection area.

[0042] Figure 5 yes Figure 2 A schematic diagram of the local structure at point A.

[0043] In the diagram: 1. Lower smoke storage unit; 10. Back panel; 101. Detection window; 11. Lower smoke passage; 111. Detection area; 112. Rejection area; 113. Upper flue; 114. Lower flue; 115. First protective door; 116. Second protective door; 12. Status adjustment device; 121. Stirring roller; 2. Detection unit; 21. Detector; 3. Smoke pushing unit; 31. Smoke pushing exhaust; 4. Rejection execution unit; 100. Cigarette. Detailed Implementation

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] like Figure 1 and Figure 2As shown, this embodiment provides a cigarette defect detection and rejection device, including a lower cigarette storage unit 1, a detection unit 2, a cigarette pushing unit 3, and a rejection execution unit 4. The lower cigarette storage unit 1 includes multiple sets of spaced lower cigarette channels 11, each set of lower cigarette channels 11 is provided with a detection area 111 and a rejection area 112, with the rejection area 112 located below the detection area 111. The detection unit 2 is configured one-to-one with the detection area 111 and is used to detect whether there are quality problems with the cigarettes 100 in the lower cigarette channel 11. The cigarette pushing unit 3 is located at the bottom of the lower cigarette channel 11 and includes multiple sets of independently driven cigarette pushing bars 31, with one set of cigarette pushing bars 31 corresponding to each set of lower cigarette channels 11. The cigarette pushing bars 31 are used to push out the cigarettes 100 falling from the corresponding lower cigarette channel 11. The rejection execution unit 4 is configured corresponding to the rejection area 112 and is used to reject the single cigarette 100 with defects when the cigarette pushing bar 31 corresponding to the lower cigarette channel 11 where the defective cigarette 100 is located stops working.

[0049] This cigarette defect detection and rejection device removes defective cigarettes 100 individually, such as empty cigarettes 100 and reverse-direction cigarettes 100, before they are grouped together. This avoids the problem of the entire pack of cigarettes being rejected in the traditional method, effectively reducing the loss of cigarettes 100 and raw materials, and improving the utilization rate of raw materials. Moreover, when the rejection execution unit 4 rejects a defective cigarette 100, the cigarette pusher 31 corresponding to the lower smoke channel 11 where the defective cigarette 100 is located is stopped. The defective cigarette 100 is completely stationary, creating ample processing time for accurate rejection of the defective cigarette 100, and achieving better rejection results without affecting the arrangement of other cigarettes 100. In addition, each group of cigarette pushers 31 is driven independently, so that if a single group of lower smoke channels 11 fails and stops, other lower smoke channels 11 continue to discharge cigarettes, achieving uninterrupted unit operation and improving the effective operating rate of the unit.

[0050] like Figure 3 As shown, the lower cigarette storage unit 1 includes a state adjustment device 12, which includes multiple sets of state adjustment units. Each set of lower cigarette channels 11 is equipped with a set of state adjustment units at its top. The state adjustment units adjust the state of the cigarette 100 as it enters the lower cigarette channel 11 to facilitate the subsequent packaging of the cigarette 100.

[0051] Specifically, the state adjustment unit includes multiple sets of parallel and spaced agitator rollers 121. The agitator rollers 121 are rotated, and the cigarettes 100 enter the lower smoke channel 11 through the gap between the two sets of agitator rollers 121 in a direction parallel to the agitator rollers 121. The rotation of the agitator rollers 121 causes the cigarettes 100 to enter the lower smoke channel 11 through the gap between the two sets of agitator rollers 121 in a direction parallel to the agitator rollers 121, so that the cigarettes 100 are arranged neatly.

[0052] like Figure 4 As shown, detection area 111 and rejection area 112 correspond to the entire group of cigarettes 100. When the cigarette pusher 31 pushes out the entire group of cigarettes 100, the entire group of cigarettes 100 detected in detection area 111 falls completely into rejection area 112. The above arrangement ensures that the cigarettes 100 pushed out by the cigarette pusher 31 in each action form a cigarette group, which facilitates the packaging of the cigarette group; moreover, detection area 111 and rejection area 112 correspond to the entire group of cigarettes 100. During detection, the entire group of cigarettes 100 is checked for defects. After the cigarette pusher 31 pushes out a group of cigarettes, the cigarette group corresponding to detection area 111 falls into rejection area 112, which facilitates the rejection of individual cigarettes 100 with defects in this group of cigarettes 100.

[0053] Optionally, such as Figure 3 As shown, a detection window 101 is provided on the back plate 10 of the lower tobacco storage unit 1. Each set of lower tobacco channels 11 is also provided with a detection window 101. The area of ​​the lower tobacco channel 11 corresponding to the detection window 101 is the detection area 111. The detection window 101 displays the tobacco end face of the entire set of cigarettes 100. The detection unit 2 is set up correspondingly to the detection window 101. The setting of the detection window 101 facilitates the detection unit 2 to detect the tobacco end face of the entire set of cigarettes 100.

[0054] In this embodiment, as Figure 4 As shown, the lower flue duct 11 includes an upper flue 113 and a lower flue 114 connected sequentially from top to bottom. The detection area 111 and the rejection area 112 are both located in the upper flue 113, and the smoke pusher 31 is located at the bottom of the lower flue 114. The upper flue 113 of the lower flue duct 11 is used for the detection and rejection of defective cigarettes 100, while the lower flue 114 is used for the temporary storage of cigarettes 100.

[0055] Optionally, such as Figure 1 and Figure 2 As shown, the upper flue 113 is provided with an openable first protective door 115 on the side wall corresponding to the back plate 10. When the first protective door 115 is opened, the rejection execution unit 4 rejects the single cigarette 100 with defects. The first protective door 115 is used to realize the opening and closing control of the upper flue 113, so as to facilitate the rejection execution unit 4 to reject the single cigarette 100 with defects.

[0056] Optionally, a second protective door 116 that can be opened and closed is provided on the side wall corresponding to the back plate 10 of the lower flue 114. The second protective door 116 is provided to realize the opening and closing control of the lower flue 114, so as to tidy it up when the cigarettes 100 are arranged in a disorderly manner in the lower flue 114.

[0057] like Figure 1 and Figure 2As shown, the detection unit 2 includes a detector 21 and a controller. Both the detector 21 and the rejection execution unit 4 are electrically connected to the controller. The detector 21 is used to detect the tobacco end face information of the cigarette 100 in the detection area 111 and feeds it back to the controller. The controller determines whether the cigarette 100 has a defect based on the tobacco end face information and sends a control signal to the rejection execution unit 4. The detection unit 2 described above can automate the detection and rejection of defective cigarettes 100.

[0058] Optionally, detector 21 is a visual detector, and detection unit 2 also includes a processor electrically connected to the controller. In this embodiment, the visual detector is a multispectral visual detector, installed on the outside of the back plate 10 of the lower cigarette storage unit 1, which can collect the spectral and morphological features of the tobacco end face of cigarette 100. The processor is a deep learning processor, which determines the defect type and level of cigarette 100 through a trained defect recognition model (including features such as hollow ends, reversed ends, and missing cigarettes). The defect recognition model of the deep learning processor is trained in the following way: collecting 100,000+ samples (including normal / defective samples of cigarette 100 of different brands and specifications), and extracting features such as tobacco density distribution, tobacco end face flatness, and color spectrum. The controller controls the action of the rejection execution unit 4 according to the type and level of defect of cigarette 100.

[0059] Optionally, each time the smoke pusher 31 completes an action, it can form a smoke group. The smoke pusher 31 is driven by a drive mechanism. In this embodiment, the drive mechanism includes a servo motor. The servo motor of the smoke pusher unit 3 is configured with an EtherCAT real-time bus, which can realize millisecond-level synchronous / asynchronous control of multiple smoke pushers 31.

[0060] It should be noted that the control mechanisms of the first protective door 115 and the second protective door 116 are electrically connected to the controller, and the controller controls the opening and closing of the first protective door 115 and the second protective door 116.

[0061] The removal execution unit 4 is also electrically connected to the controller, such as Figure 5 As shown, the rejection execution unit 4 is a gripping device that grips the defective single cigarette 100. In this embodiment, the gripping device includes a robotic gripper, which grips the defective cigarette 100.

[0062] In other embodiments, the rejection execution unit 4 may also be an adsorption device used to adsorb defective single cigarettes 100, for example, by using a negative pressure mouthpiece to pick up defective cigarettes 100 for rejection.

[0063] In other embodiments, the rejection execution unit 4 may also be a blowing device for blowing out defective single cigarettes 100, for example, by controlling a high-speed airflow through a nozzle to reject them via a solenoid valve.

[0064] In other embodiments, the rejection execution unit 4 includes a pusher for pushing out a defective single cigarette 100. For example, the pusher is driven by a linear motion mechanism to reject the defective cigarette 100.

[0065] The rejection execution unit 4 can reject defective single cigarettes 100 using any of the methods described above. The specific structure of the rejection execution unit 4 is prior art and will not be described in detail here.

[0066] When detector 21 detects and analyzes through the detection window 101 on the back panel 10 of the lower smoke storage and finds that a cigarette 100 in a certain group of lower smoke channels 11 has a hollow end or is reversed, the controller receives the information fed back by detector 21, determines whether the cigarette 100 has a hollow end or reversed defect based on the tobacco end face information of the cigarette 100, and sends a control signal to the rejection execution unit 4. At the same time, the pusher 31 of the corresponding group of lower smoke channels 11 stops, while the other pushers 31 continue to work. Simultaneously, the first protective door 115 is activated and opened. At this time, the defective cigarette 100 falls into the rejection area 112 and is stationary. The rejection execution unit 4 starts to act and removes the defective cigarette 100. Afterwards, the control mechanism of the first protective door 115 is activated, the first protective door 115 is closed, and the pushers 31 of the corresponding group of lower smoke channels 11 resume operation.

[0067] This cigarette defect detection and rejection equipment changes the detection and rejection station, enabling the individual rejection of defective cigarettes such as empty cigarettes and reversed cigarettes before the cigarettes are grouped together. This avoids the problem of the entire pack of cigarettes being rejected in traditional detection methods, effectively reducing the loss of cigarettes and raw materials, and improving the utilization rate of raw materials.

[0068] By adopting independent servo drive and coordinated control of the smoke pushing technology, in the event of a failure and stoppage of a single set of smoke lowering channels 11, the defective cigarette 100 can be kept completely still, creating ample processing time for the accurate removal of a single defective cigarette, and achieving better removal effect without affecting the arrangement of other cigarettes 100; at the same time, other smoke lowering channels 11 in the smoke lowering unit 1 continue to lower the smoke, so that the unit does not stop and improves the effective operating rate of the unit.

[0069] 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 cigarette defect detection and rejection device, characterized in that, include: The lower smoke storage unit (1) includes multiple sets of spaced lower smoke channels (11), each set of lower smoke channels (11) is provided with a detection area (111) and a rejection area (112), the rejection area (112) is located below the detection area (111); The detection unit (2) is set up one-to-one with the detection area (111) to detect whether there is a quality problem with the cigarette (100) in the lower smoke channel (11); A cigarette pusher unit (3) is located at the bottom of the lower smoke channel (11). The cigarette pusher unit (3) includes multiple independently driven cigarette pushers (31). Each lower smoke channel (11) is provided with a set of cigarette pushers (31). The cigarette pushers (31) are used to push out the cigarettes (100) that fall into the corresponding lower smoke channel (11). The rejection execution unit (4) is set up in correspondence with the rejection area (112) and is used to reject the single cigarette (100) with defects when the pusher (31) corresponding to the lower smoke channel (11) where the defective cigarette (100) is located stops working.

2. The cigarette defect detection and rejection equipment according to claim 1, characterized in that, The detection area (111) and the rejection area (112) correspond to the entire group of cigarettes (100). The cigarette pusher (31) pushes out the entire group of cigarettes (100). The entire group of cigarettes (100) detected by the detection area (111) falls completely into the rejection area (112).

3. The cigarette defect detection and rejection equipment according to claim 2, characterized in that, The back plate (10) of the lower tobacco storage unit (1) is provided with a detection window (101). Each set of lower tobacco channels (11) is provided with the detection window (101). The area of ​​the lower tobacco channel (11) corresponding to the detection window (101) is the detection area (111). The detection window (101) displays the tobacco end face of the entire set of cigarettes (100). The detection unit (2) is set in correspondence with the detection window (101).

4. The cigarette defect detection and rejection equipment according to claim 3, characterized in that, The lower smoke channel (11) includes an upper smoke channel (113) and a lower smoke channel (114) connected sequentially from top to bottom. The detection area (111) and the rejection area (112) are both located in the upper smoke channel (113), and the smoke pusher (31) is located at the bottom of the lower smoke channel (114).

5. The cigarette defect detection and rejection equipment according to claim 4, characterized in that, The upper flue (113) and the side wall corresponding to the back plate (10) are provided with an openable first protective door (115), which opens the rejection execution unit (4) to reject defective single cigarettes (100).

6. The cigarette defect detection and rejection equipment according to claim 4, characterized in that, The lower flue (114) and the side wall corresponding to the back plate (10) are provided with an openable second protective door (116).

7. The cigarette defect detection and rejection equipment according to any one of claims 1-6, characterized in that, The lower tobacco storage unit (1) includes: The state adjustment device (12) includes multiple state adjustment units. Each set of the lower smoke channel (11) is provided with a state adjustment unit at the top, which is used to adjust the state of the cigarette (100) entering the lower smoke channel (11).

8. The cigarette defect detection and rejection equipment according to claim 7, characterized in that, The state adjustment unit includes multiple sets of parallel and spaced agitator rollers (121). The agitator rollers (121) are rotatably arranged, and the cigarette stick (100) enters the lower smoke channel (11) through the gap between the two sets of agitator rollers (121) in a direction parallel to the agitator rollers (121).

9. The cigarette defect detection and rejection equipment according to any one of claims 1-6, characterized in that, The detection unit (2) includes a detector (21) and a controller. The detector (21) and the rejection execution unit (4) are both electrically connected to the controller. The detector (21) is used to detect the tobacco end face information of the cigarette (100) in the detection area (111) and feed it back to the controller. The controller determines whether the cigarette (100) has a defect based on the tobacco end face information of the cigarette (100) and sends a control signal to the rejection execution unit (4).

10. The cigarette defect detection and rejection equipment according to any one of claims 1-6, characterized in that, The rejection execution unit (4) is a clamping device that clamps a single cigarette (100) with defects. Alternatively, the rejection execution unit (4) may be an adsorption device used to adsorb defective single cigarette sticks (100). Alternatively, the rejection execution unit (4) may be a blowing device used to blow out defective single cigarettes (100). Alternatively, the rejection execution unit (4) may include a pusher for pushing out a defective single cigarette (100).

Images