Defective cigarette removing equipment

Abstract

The defective cigarette removing equipment comprises a removing table, a self-rolling detection mechanism and a removing mechanism, a conveyor is arranged on the upper side of the removing table, movable seats are arranged on the outer sides of chain plates of the conveyor, two symmetrically-distributed cigarette seats are arranged at the two ends of each movable seat, and a fixing groove is formed in the center of each movable seat; the self-rolling detection mechanism comprises a first rotating shaft, a rubber roller and a detection assembly, the first rotating shaft is rotationally arranged in the moving seat, the first end of the first rotating shaft penetrates through the outside of the moving seat, and the rubber roller sleeves the first rotating shaft and is located in the fixing groove. According to the device, the cigarettes can be automatically turned over when defective products of the cigarettes are detected, detection blind spots are avoided by obtaining images of multiple faces of the cigarettes, the detection accuracy of the device on the defective products of the cigarettes is improved, meanwhile, the device achieves automatic rejection of the defective products of the cigarettes in the cigarette conveying process through the transmission element, and the detection efficiency is improved. And therefore, the use is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of cigarette production, and more specifically, to a defective cigarette rejecting device. Background Art

[0002] During the cigarette production process, after the cigarettes are processed by the tipping machine, they enter the cigarette magazine of the packing machine through the cigarette conveying channel and then are packed into finished cigarettes. During the tipping process of the tipping machine, there may be a very small number of abnormal cigarettes that do not meet the requirements, such as broken and defective cigarettes. These abnormal cigarettes are formed during the tipping process of the cigarettes, such as incomplete tobacco segments or / and filter rod segments, damaged tobacco segments or / and filter rod segments, unevenly tipped filter rods, and untipped filter rods. These abnormal cigarettes must be processed before being packed by the packing machine, otherwise the quality of the finished products will be affected.

[0003] Currently, the existing rejecting devices usually combine visual inspection equipment with a conveyor line. The cigarettes are conveyed by a belt conveyor, and the visual inspection equipment is used to analyze the defects of the cigarettes. When defective cigarettes are found, the belt conveyor stops, the equipment alarms, and then the defective cigarettes are removed by external inspectors, so as to achieve the operation of rejecting defective cigarettes. However, as the cigarettes move with the belt conveyor, the lower side of the cigarettes is in the image recognition blind spot of the visual inspection equipment, resulting in insufficient recognition of defective products of the device. And it also affects the packing efficiency, and there is also a phenomenon of cigarette waste.

[0004] Therefore, how to provide a defective cigarette rejecting device has become a technical problem urgently to be solved in this field. Summary of the Invention

[0005] An object of the present invention is to provide a new technical solution for a defective cigarette rejecting device.

[0006] According to a first aspect of the present invention, there is provided a defective cigarette rejecting device, including: a rejecting table, a self-rolling detection mechanism, and a rejecting mechanism;

[0007] On the upper side of the rejecting table, there is a conveyor. On the outer sides of the chain plates of the conveyor, there are moving seats. At both ends of the moving seat, there are two symmetrically distributed cigarette seats for placing cigarettes. At the central position of the moving seat, there is a fixed groove;

[0008] The self-rolling detection mechanism includes a first rotating shaft, a rubber roller, and a detection component. The first rotating shaft is rotatably arranged inside the moving seat, and the first end of the first rotating shaft penetrates to the outside of the moving seat. The rubber roller is sleeved on the first rotating shaft and is located in the fixed groove. The detection component is arranged between the moving seat, the conveyor, and the rejecting table;

[0009] The rejecting mechanism is used for automatically rejecting defective cigarettes.

[0010] Optionally, a controller is provided on the rejection table. The input end of the controller is electrically connected to an external power supply, and the output end of the controller is electrically connected to the input end of the conveyor.

[0011] Optionally, the self-rolling detection mechanism further includes a first gear, a first guide seat, a first guide groove, and three first rack plates. The first gear is respectively arranged at the first end of the first rotating shaft. The three first rack plates are evenly distributed on the upper side of the tail end of the conveyor. The first guide seat is arranged on the outer side wall of the first rack plate. The first guide groove is arranged on the inner side wall of the first guide seat. The first guide groove is fitted and installed with the first rotating shaft, and the first gear meshes with the first rack plate.

[0012] Optionally, the detection assembly includes a two-dimensional bar code, a vertical rod, a first scanning gun, and an industrial camera. The two-dimensional bar codes are respectively arranged at the front end of the moving seat. The vertical rods are evenly distributed on the rejection table. The industrial camera is arranged at the top of the vertical rod and corresponds to the two-dimensional bar code.

[0013] Both the first scanning gun and the industrial camera are electrically connected to the controller.

[0014] Optionally, an installation groove is provided on the side wall of the moving seat.

[0015] The rejection mechanism includes a lead screw, a threaded seat, a vertical moving slide seat, a rubber blanking seat, and a rotating assembly. The lead screw is rotatably arranged in the installation groove, and the lead screw is connected to the rotating assembly. The rotating assembly is used to drive the lead screw to rotate.

[0016] The top of the vertical moving slide seat is connected to the rubber blanking seat. The rubber blanking seat is located below the cigarette seat. The threaded seat is sleeved on the lead screw and is threadedly connected to the lead screw. A dovetail groove is formed in the middle of the threaded seat, and the threaded seat is slidably connected to the dovetail groove.

[0017] Optionally, the rejection mechanism further includes a guide post and a Z-shaped chute. The guide post is arranged at the bottom end of the vertical moving slide seat. A Z-shaped chute is formed inside the moving seat, and the guide post is slidably connected to the Z-shaped chute.

[0018] Optionally, a good product blanking seat is provided on the rejection table. The good product blanking seat includes a support rod and an arc-shaped blanking plate. The support rod is fixed on the rejection table. The support rod is connected to the arc-shaped blanking plate. The arc-shaped blanking plate is located outside the conveyor and is inclined.

[0019] Optionally, the rejection mechanism includes a limit seat, and the limit seat is arranged at the rear end of the moving seat.

[0020] The rotating assembly includes a second rotating shaft, a second gear, a groove, a first electro-hydraulic push rod, a second rack plate, a second electro-hydraulic push rod, a heightening frame, a third rack plate and a second guiding groove. The first end of the second rotating shaft is connected to the lead screw, the second gear is arranged at the second end of the second rotating shaft, a groove is arranged on the conveyor, the first electro-hydraulic push rod is arranged in the groove, and the second rack plate is connected to the first electro-hydraulic push rod;

[0021] The second electro-hydraulic push rod is arranged on the side wall of the conveyor. Both ends of the heightening frame are respectively connected to the second electro-hydraulic push rod and the third rack plate. Both the third rack plate and the second rack plate are engaged with the second gear. The input ends of the first electro-hydraulic push rod and the second electro-hydraulic push rod are electrically connected to the output end of the controller. Second guiding grooves are formed on the front sides of both the third rack plate and the second rack plate.

[0022] Optionally, both the third rack plate and the second rack plate are horizontally and longitudinally offset from the first rack plate.

[0023] Optionally, the rejection mechanism further includes a second scanning gun and a residue chute plate. The residue chute plate is arranged at the front end of the rejection table. Two second scanning guns are arranged at the front end of the conveyor. The second scanning guns are both electrically connected to the controller, and the second scanning guns are installed in cooperation with the two-dimensional barcodes.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. During the detection process of cigarette rod processing, through the first rotating shaft, rubber roller, first gear, first guiding seat, first guiding groove, first rack plate and detection component, the cigarette rod can be automatically flipped when detecting defective products of the cigarette rod, and images of multiple surfaces of the cigarette rod are acquired, thereby avoiding detection blind spots and improving the detection accuracy of defective products of the cigarette rod by the device.

[0026] 2. During the detection process of cigarette rod processing, through components such as the lead screw, threaded seat, vertical moving slide seat, rubber blanking seat, guiding column, Z-shaped sliding groove, limiting seat, second rotating shaft, second gear, groove, second scanning gun and residue chute plate, the defective products of the cigarette rod can be automatically rejected during the conveying process of the cigarette rod, without the need to stop the equipment to reject the cigarette rod, which is convenient to use and avoids time-consuming phenomena.

[0027] Other features and advantages of the present invention will become clear through the following detailed description of the exemplary embodiments of the present invention with reference to the accompanying drawings. Description of the Drawings

[0028] The accompanying drawings incorporated in and forming a part of this specification illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0029] Figure 1 It is a structural diagram of the defective cigarette rejecting device of the present invention;

[0030] Figure 2 It is a structural diagram of the defective cigarette rejecting device from another angle of the present invention;

[0031] Figure 3 It is a structural diagram of the conveyor of the present invention;

[0032] Figure 4 It is a structural diagram of the moving seat of the present invention;

[0033] Figure 5 It is a structural diagram of the limit seat of the present invention;

[0034] Figure 6 It is a structural diagram of the good product discharging seat of the present invention;

[0035] Figure 7 It is Figure 1 an enlarged view of part A in

[0036] Figure 8 It is Figure 3 an enlarged view of part B in

[0037] Figure 9 It is a structural diagram of the first guiding seat of the present invention.

[0038] The labels in the figure are as follows: 1. Rejecting table; 2. Controller; 3. Conveyor; 4. Moving seat; 5. Cigarette seat; 6. Self-rolling detection mechanism; 61. First rotating shaft; 62. Rubber roller; 63. First gear; 64. First guiding seat; 65. First guiding groove; 66. First rack plate; 67. Detection assembly; 671. Two-dimensional bar code; 672. Upright rod; 673. First scanning gun; 674. Industrial camera; 7. Rejecting mechanism; 701. Lead screw; 702. Threaded seat; 703. Vertical moving slide; 704. Rubber discharging seat; 705. Guide post; 706. Z-shaped sliding groove; 707. Limit seat; 708. Second rotating shaft; 709. Second gear; 710. Groove; 711. First electro-hydraulic push rod; 712. Second rack plate; 713. Second electro-hydraulic push rod; 714. Raising frame; 715. Third rack plate; 716. Second guiding groove; 717. Second scanning gun; 718. Scrap chute plate; 8. Good product discharging seat. Detailed implementation manners

[0039] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

[0040] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way a limitation on the present invention or its application or use.

[0041] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the specification.

[0042] In all the examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments may have different values.

[0043] As Figures 1 to 2 shown, an embodiment of the present invention provides a defective cigarette removing device, including: a removing table 1, a self-rolling detection mechanism 6, and a removing mechanism 7.

[0044] A conveyor 3 is provided on the upper side of the removing table 1. Moving seats 4 are provided on the outer sides of the chain plates of the conveyor 3. Two symmetrically distributed cigarette seats 5 are provided at both ends of the moving seat 4. The cigarette seats 5 are used for placing cigarettes, and a fixing groove is provided at the central position of the moving seat 4.

[0045] Specifically, there are a plurality of moving seats 4, which are evenly spaced on the conveyor 3 respectively. The conveyor 3 drives the moving seats 4 to move, and then detects the cigarettes placed on the cigarette seats 5.

[0046] The self-rolling detection mechanism 6 includes a first rotating shaft 61, a rubber roller 62, and a detection assembly 67. The first rotating shaft 61 is rotatably provided inside the moving seat 4, and the first end of the first rotating shaft 61 penetrates to the outside of the moving seat 4. The rubber roller 62 is sleeved on the first rotating shaft 61 and is located in the fixing groove. The detection assembly 67 is provided between the moving seat 4, the conveyor 3, and the removing table 1. The self-rolling detection mechanism 6 is used to flip the cigarettes on the cigarette seats 5 so that the detection assembly 67 can perform a full-range detection on the cigarettes.

[0047] The removing mechanism 7 is used to automatically remove defective cigarettes.

[0048] When performing the operation of removing defective cigarette sticks, the conveyor 3 runs, causing its own chain plates to drive the corresponding moving seats 4 to move. At the same time, cigarette sticks are sequentially placed between the concave surfaces of two cigarette holders 5 on the moving seats 4 through an external machine. The cigarette sticks on the cigarette holders 5 are flipped by the self-rolling detection mechanism 6 so that the detection component 67 can perform a full-range detection of the cigarette sticks. When defective cigarette sticks are detected, the rejection mechanism 7 automatically removes the defective cigarette sticks, improving the accuracy of detecting defective cigarette sticks and reducing the labor intensity of the operators.

[0049] In an embodiment of the defective cigarette stick rejection device of the present invention, a controller 2 is provided on the rejection table 1. The input end of the controller 2 is electrically connected to an external power supply, and the output end of the controller 2 is electrically connected to the input end of the conveyor 3.

[0050] Specifically, the controller 2 can be a PLC controller.

[0051] During use, the operator first uploads the image of the qualified cigarette sticks placed horizontally and longitudinally to the controller 2. The controller 2 can, through the internal image processing operation system, compare and analyze the picture taken by the detection component 67 with the image appearance of the qualified cigarette sticks uploaded in advance. By obtaining the image appearance error rate between the two, it is determined whether the cigarette stick is a defective product.

[0052] In an embodiment of the defective cigarette stick rejection device of the present invention, a good product discharging seat 8 is provided on the rejection table 1. The good product discharging seat 8 includes a support rod and an arc-shaped discharging plate. The support rod is fixed on the rejection table 1, and the support rod is connected to the arc-shaped discharging plate. The arc-shaped discharging plate is located outside the conveyor 3 and is inclined.

[0053] The right lower end of the good product discharging seat 8 is vertically aligned with the upper left end of the external conveyor belt, that is, the arc-shaped discharging plate is vertically aligned with the upper left end of the conveyor belt.

[0054] After the cigarette sticks are detected, as the moving seat 4 moves along the arc surface at the right end of the conveyor 3 through the chain plates, the rear end of the good product discharging seat 8 is located between the cigarette holder 5 on the rightmost moving seat 4 on the conveyor 3 and the moving seat 4 vertically, and the good product discharging seat 8 does not come into contact with the subsequent movement of the moving seat 4. Through the bottom arc-shaped guiding design of the good product discharging seat 8, the qualified cigarette sticks are taken off from the cigarette holder 5 on the rightmost moving seat 4 on the conveyor 3 and guided to the external conveyor belt for qualified cigarette sticks, which is convenient to use.

[0055] In an embodiment of the defective cigarette rejecting device of the present invention, the self-rolling detection mechanism 6 further includes a first gear 63, a first guide seat 64, a first guide groove 65, and three first rack plates 66. The first gear 63 is respectively arranged at the first end of the first rotating shaft 61. The three first rack plates 66 are evenly distributed on the upper side of the tail end of the conveyor 3. The first guide seat 64 is arranged on the outer side wall of the first rack plate 66. The first guide groove 65 is arranged on the inner side wall of the first guide seat 64. The first guide groove 65 is cooperatively installed with the first rotating shaft 61, and the first gear 63 meshes with the first rack plate 66.

[0056] Specifically, the three first rack plates 66 are arranged close to the tail end of the conveyor 3. The three first rack plates 66 and the detection assembly 67 are respectively located on both sides of the conveyor 3, and the three first rack plates 66 respectively correspond to the detection assembly 67.

[0057] It should be noted that the length of the first rack plate 66 can be one-third of the circumference of the cigarette, so that the three first rack plates 66 can turn the cigarette one full circle.

[0058] When the moving seat 4 moves along with the conveyor 3, the moving seat 4 drives the cigarette holder 5 to drive the cigarettes on itself to move. When the moving seat 4 horizontally moves to be about to approach the leftmost first guide seat 64, the first end of the first rotating shaft 61 on the moving seat 4 first slides into the interior of the first guide groove 65, and through the sliding guidance between the two, it is ensured that the first gear 63 on the subsequent moving seat 4 can accurately mesh with the corresponding first rack plate 66.

[0059] Then, the first gear 63 on the moving seat 4 meshes with the leftmost first rack plate 66. Through the meshing connection between the first gear 63 and the first rack plate 66, the first gear 63 drives the corresponding first rotating shaft 61 to rotate, so that the first rotating shaft 61 drives the corresponding rubber roller 62 to rotate. The rubber roller 62 makes the cigarette automatically turn through its contact with the cigarette on the cigarette holder 5. At the same time, the detection assembly 67 performs a full-range detection on the cigarette and sends the photo to the controller 2. The controller 2 compares and analyzes the picture taken by the detection assembly 67 with the image appearance of the pre-uploaded qualified cigarette, and by obtaining the image appearance error rate between the two, it is judged whether the cigarette is a defective product, avoiding the problem of insufficient recognition of defective cigarettes resulting in a decline in product quality, and improving the intelligence and production efficiency of the defective cigarette rejecting device of the present invention.

[0060] In an implementation of the defective cigarette rejecting device of the present invention, the detection assembly 67 includes a two-dimensional bar code 671, an upright rod 672, a first scanning gun 673, and an industrial camera 674. The two-dimensional bar code 671 is respectively arranged at the front end of the moving seat 4. The upright rods 672 are evenly distributed on the rejection table 1. The industrial camera 674 is arranged at the top of the upright rod 672 and corresponds to the two-dimensional bar code 671.

[0061] Both the first scanning gun 673 and the industrial camera 674 are electrically connected to the controller 2.

[0062] Specifically, there are three upright rods 672, first scanning guns 673, and industrial cameras 674, and they are respectively arranged opposite to the three first rack plates 66. The industrial camera 674 is located above the cigarette seat.

[0063] The controller 2 activates the first scanning gun 673 and the second scanning gun 717 and makes them in a normally open state. When the moving seat 4 drives the cigarettes on itself to move to the leftmost upright rod 672, the leftmost first scanning gun 673 scans the two-dimensional bar code 671 on the front side of the moving seat 4 at this time, and transmits the scanning result to the controller 2 in the form of an electrical signal.

[0064] At the same time, the controller 2 activates the industrial camera 674 above the first scanning gun 673. The industrial camera 674 operates to collect images of the cigarettes on the moving seat 4 at this time, and transmits the images to the controller 2 in the form of electrical signals. The controller 2 analyzes the images through the internal image processing operation system, thereby comparing and analyzing the images with the images of qualified cigarettes uploaded in advance, and judging whether the cigarettes are defective by obtaining the image appearance error rate between the two.

[0065] As the moving seat 4 drives the cigarettes placed above it to continue moving, the cigarettes need to pass through three groups of first rack plates 66 in sequence. Each time passing through a group of first rack plates 66, according to the above working principle, the horizontal and longitudinal placement positions of the cigarettes at this time need to be flipped and the images are taken and uploaded. Therefore, the defective cigarette rejecting device of the present invention can collect three different placement images of each cigarette in the horizontal and longitudinal directions. By collecting multiple groups of image data and comparing them with the images of qualified cigarettes, the accuracy of the device in judging defective cigarettes is improved.

[0066] When the internal image processing operation system of the controller 2 analyzes that a certain cigarette is defective, the controller 2 records the two-dimensional bar code 671 corresponding to this cigarette. When the cigarette moves to the upper right end of the conveyor 3 along with the moving seat 4, the defective cigarette rejecting device of the present invention can automatically flip the cigarette during the defective product detection through the transmission element and the detection element, and obtain images of multiple surfaces of the cigarette, thereby avoiding detection blind spots and improving the accuracy of the device in detecting defective cigarettes.

[0067] In an embodiment of the defective cigarette removing device of the present invention, an installation groove is provided on the side wall of the moving seat 4.

[0068] The removing mechanism 7 includes a lead screw 701, a threaded seat 702, a vertical moving slide seat 703, a rubber blanking seat 704 and a rotating assembly. The lead screw 701 is rotatably arranged in the installation groove, and the lead screw 701 is connected to the rotating assembly, and the rotating assembly is used to drive the lead screw to rotate.

[0069] The top of the vertical moving slide seat 703 is connected to the rubber blanking seat 704. The rubber blanking seat 704 is located below the cigarette seat 5. The threaded seat 702 is sleeved on the lead screw 701 and is threadedly connected to the lead screw 701. A dovetail groove is provided in the middle of the threaded seat 702, and the threaded seat 702 is slidably connected to the dovetail groove.

[0070] Specifically, the lead screw 701 is horizontally arranged, the threaded seat 702 is vertically arranged, and the dovetail groove extends along the length direction of the threaded seat 702.

[0071] The first end of the lead screw 701 is respectively arranged on the inner wall of the installation groove through a damping rotating shaft, and the second end of the lead screw 701 is rotatably connected to the inner wall of the installation groove at the rear end of the moving seat 4 through a second bearing.

[0072] When defective cigarettes are identified and the cigarettes are conveyed by the moving seat 5 to the rotating assembly, the rotating assembly drives the lead screw 701 to rotate forward, and the lead screw 701 threadedly connects with the threaded seat 702 to move the threaded seat 702.

[0073] During the movement of the threaded seat 702, the vertical moving slide seat 703 is driven to move synchronously through the sliding connection between its own dovetail groove and the vertical moving slide seat 703, and the vertical moving slide seat 703 is lifted. Furthermore, the rubber blanking seat 704 is lifted to jack up the rear end of the defective cigarette, and the defective cigarette is driven to move forward along the concave surface of the front cigarette seat 5 through the contact friction force between the rubber blanking seat 704 and the defective cigarette, and then the defective cigarette is removed.

[0074] In an embodiment of the defective cigarette removing device of the present invention, the removing mechanism 7 further includes a guide post 705 and a Z-shaped chute 706. The guide post 705 is arranged at the bottom end of the vertical moving slide seat 703, and a Z-shaped chute 706 is provided inside the moving seat 4. The guide post 705 is slidably connected to the Z-shaped chute 706.

[0075] Specifically, when the lead screw 701 drives the vertical moving slide 703 to move, the opening above the rear end of the residue chute plate 718 is located below the front of the cigarette holder 5 corresponding to the front end of the defective cigarette. As the subsequent guide post 705 moves forward along the uppermost chute of the Z-shaped chute 706, by the same principle, the rubber feeding seat 704 uses the contact friction force to push the defective cigarette forward along the concave surface of the front cigarette holder 5, so that the defective cigarette separates from the cigarette holder 5 under the action of its own gravity and falls, thus realizing the automatic identification and rejection of the defective cigarette, which is convenient to use.

[0076] In an implementation manner of the defective cigarette rejection device of the present invention, the rejection mechanism 7 includes a limit seat 707, and the limit seat 707 is arranged at the rear end of the moving seat 4.

[0077] The rotating assembly includes a second rotating shaft 708, a second gear 709, a groove 710, a first electro-hydraulic push rod 711, a second rack plate 712, a second electro-hydraulic push rod 713, a heightening frame 714, a third rack plate 715 and a second guide groove 716. The first end of the second rotating shaft 708 is connected to the lead screw 701, the second gear 709 is arranged at the second end of the second rotating shaft 708, a groove 710 is arranged on the conveyor 3, the first electro-hydraulic push rod 711 is arranged in the groove 710, and the second rack plate 712 is connected to the first electro-hydraulic push rod 711.

[0078] The second electro-hydraulic push rod 713 is arranged on the side wall of the conveyor 3. The two ends of the heightening frame 714 are respectively connected to the second electro-hydraulic push rod 713 and the third rack plate 715. Both the third rack plate 715 and the second rack plate 712 are engaged with the second gear 709. The input ends of the first electro-hydraulic push rod 711 and the second electro-hydraulic push rod 713 are electrically connected to the output end of the controller 2. Second guide grooves 716 are formed on the front sides of both the third rack plate 715 and the second rack plate 712.

[0079] Furthermore, the rejection mechanism 7 further includes a second scanning gun 717 and a residue chute plate 718. The residue chute plate 718 is arranged at the front end of the rejection table 1. Two second scanning guns 717 are arranged at the front end of the conveyor 3. The second scanning guns 717 are both electrically connected to the controller 2, and the second scanning guns 717 are installed in cooperation with the two-dimensional barcodes 671.

[0080] As the moving seat 4 drives the cigarette to continue moving rightward, when the defective cigarette passes the second scanning gun 717 on the left side, the second scanning gun 717 scans and identifies the two-dimensional barcode 671 corresponding to the defective cigarette at this time and transmits the result to the controller 2 in the form of an electrical signal. The controller 2 obtains that the two-dimensional barcode 671 is the QR code of the corresponding defective cigarette. Subsequently, the controller 2 activates the first electro-hydraulic push rod 711 so that its telescopic end drives the second rack plate 712 to move upward by a specified distance, making the second rack plate 712 horizontally aligned with the second gear 709 on the moving seat 4 corresponding to the defective cigarette at this time. As the moving seat 4 approaches the second gear 709, the slide rod at the lower end of the limit seat 707 on the moving seat 4 first slides into the second guide groove 716 on the second rack plate 712, thereby ensuring that the second gear 709 on the subsequent moving seat 4 can be accurately horizontally meshed and connected with the second rack plate 712.

[0081] Next, as the lower end of the second gear 709 on the moving seat 4 is meshed and connected with the second rack plate 712, the second gear 709 drives the lead screw 701 to rotate forward through the second rotating shaft 708. The lead screw 701 is threadedly connected with the threaded seat 702, so that the threaded seat 702 moves forward. During the forward movement of the threaded seat 702, it drives the vertical movement slide seat 703 to move forward synchronously through the sliding connection between its dovetail groove and the vertical movement slide seat 703.

[0082] Next, during the forward movement of the vertical movement slide seat 703, it drives the guide post 705 to slide along the Z-shaped chute 706. During the forward sliding of the guide post 705 along the Z-shaped chute 706, when the guide post 705 slides from the lowest end of the Z-shaped chute 706 to the uppermost end of the Z-shaped chute 706, during this process, the guide post 705 drives the vertical movement slide seat 703 to slide vertically upward along the dovetail groove of the threaded seat 702. The vertical movement slide seat 703 drives the rubber blanking seat 704 at the upper end to move upward and forward at the same time.

[0083] Next, the rubber blanking seat 704 moves upward to jack up the rear end of the defective cigarette, and drives the lifted and inclined cigarette to move forward along the concave surface of the front cigarette holder 5 through the frictional contact force between the rubber blanking seat 704 and the defective cigarette. During this process, the opening above the rear end of the debris chute plate 718 is located below the front of the cigarette holder 5 corresponding to the defective cigarette. As the subsequent guide post 705 moves forward along the uppermost chute of the Z-shaped chute 706, the rubber blanking seat 704 uses the frictional contact force to push the defective cigarette forward along the concave surface of the front cigarette holder 5 by the same principle, so that the defective cigarette separates from the cigarette holder 5 under the action of its own gravity and falls onto the debris chute plate 718, thus realizing the automatic identification and rejection of the defective cigarette, which is convenient to use.

[0084] The damping rotating shaft is composed of an outer shaft, an inner shaft and damping material. The outer shaft is fixed to the moving seat 4. The inner shaft is rotatably connected inside the outer shaft. Damping material is also provided between the contact surfaces of the outer shaft and the inner shaft. The inner shaft is fixedly connected to the front end of the lead screw 701. Therefore, when the lead screw 701 is driven to rotate by the rotation of the second rotating shaft 708, the lead screw 701 overcomes the internal resistance of the damping rotating shaft and rotates. When the second rotating shaft 708 does not drive the lead screw 701 to rotate, the internal resistance of the damping rotating shaft prevents the lead screw 701 from continuing to rotate due to rotational inertia when the second rotating shaft 708 is not driving it.

[0085] When defective cigarettes are automatically removed, as the moving seat 4 moves to the second scanning gun 717 on the right, by the same principle, the second scanning gun 717 identifies the moving seat 4 after the defective cigarettes are removed and transmits the result to the controller 2 in the form of an electrical signal. The controller 2 controls the second electro-hydraulic push rod 713 so that its telescopic end drives the third rack plate 715 to move down a specified distance through the heightening frame 714.

[0086] The upper sliding rod of the limit seat 707 slides into the second guiding groove 716 on the third rack plate 715. Arc chamfers are provided at the left and right end openings of the second guiding groove 716 and the first guiding groove 65. The arc chamfers increase the caliber of the left and right end openings of the second guiding groove 716 and the first guiding groove 65 itself, facilitating the contact and guiding sliding-in of the corresponding limit seat 707 or the first rotating shaft 61.

[0087] The third rack plate 715 is meshed and connected to the upper end of the second gear 709 of the moving seat 4 after the defective cigarettes are removed, so that the second gear 709 indirectly drives the second rotating shaft 708 to drive the lead screw 701 to reverse and reset, and all components inside the moving seat 4 after the defective cigarettes are removed are automatically reset.

[0088] The extending speed of the telescopic ends of the first electro-hydraulic push rod 711 and the second electro-hydraulic push rod 713 and the time required for contraction are both less than the time required for the moving seat 4 on the conveyor 3 to pass through the gap between two adjacent moving seats 4, thus preventing interference with the movement of the surrounding other moving seats 4 along with the chain plate of the conveyor 3 during the movement of the telescopic ends of the first electro-hydraulic push rod 711 and the second electro-hydraulic push rod 713. The third rack plate 715 and the second rack plate 712 are horizontally and longitudinally misaligned with the first rack plate 66, thus preventing interference with the movement of the first gear 63 during the meshing connection between the third rack plate 715 or the second rack plate 712 and the second gear 709. The defective cigarette removal device of the present invention realizes the automatic removal of defective cigarettes during the cigarette conveying process through the removal mechanism 7 without the need to stop the device, which is convenient to use.

[0089] In an embodiment of the defective cigarette rejecting device of the present invention, both the third rack plate 715 and the second rack plate 712 are horizontally and longitudinally displaced relative to the first rack plate 66. The number of teeth of the third rack plate 715 and the second rack plate 712 is the same, so as to ensure that the number of forward and reverse rotations of the second gear 709 on the moving seat 4 after defective cigarettes are rejected is the same.

[0090] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A defective cigarette removing device, characterized in that, Including: A rejection table (1), a self - tumbling detection mechanism (6) and a rejection mechanism (7); On the upper side of the rejection table (1), a conveyor (3) is provided. On the outer sides of the chain plates of the conveyor (3), moving seats (4) are provided. At both ends of the moving seat (4), two symmetrically distributed cigarette seats (5) are provided. The cigarette seats (5) are used for placing cigarette sticks, and a fixing groove is provided at the central position of the moving seat (4); The self - tumbling detection mechanism (6) includes a first rotating shaft (61), a rubber roller (62) and a detection component (67). The first rotating shaft (61) is rotatably arranged inside the moving seat (4), and the first end of the first rotating shaft (61) penetrates to the outside of the moving seat (4). The rubber roller (62) is sleeved on the first rotating shaft (61) and is located in the fixing groove. The detection component (67) is arranged between the moving seat (4), the conveyor (3) and the rejection table (1); The rejection mechanism (7) is used for automatically rejecting defective cigarette sticks.

2. The defective cigarette rejecting device according to claim 1, wherein On the rejection table (1), a controller (2) is provided. The input end of the controller (2) is electrically connected to an external power supply, and the output end of the controller (2) is electrically connected to the input end of the conveyor (3).

3. The defective cigarette rejecting device according to claim 1, wherein The self - tumbling detection mechanism (6) further includes a first gear (63), a first guiding seat (64), a first guiding groove (65) and three first rack plates (66). The first gear (63) is respectively arranged at the first end of the first rotating shaft (61). The three first rack plates (66) are evenly distributed on the upper side of the tail end of the conveyor (3). The first guiding seat (64) is arranged on the outer side wall of the first rack plate (66). The first guiding groove (65) is arranged on the inner side wall of the first guiding seat (64). The first guiding groove (65) is cooperatively installed with the first rotating shaft (61), and the first gear (63) meshes with the first rack plate (66); 4. The defective cigarette removing device according to claim 2, wherein, The detection component (67) includes a two - dimensional bar code (671), a vertical rod (672), a first scanning gun (673) and an industrial camera (674). The two - dimensional bar codes (671) are respectively arranged at the front end of the moving seat (4). The vertical rods (672) are evenly distributed on the rejection table (1). The industrial camera (674) is arranged at the top of the vertical rod (672) and corresponds to the two - dimensional bar code (671); Both the first scanning gun (673) and the industrial camera (674) are electrically connected to the controller (2).

5. The defective cigarette rejecting device according to claim 3, wherein An installation groove is provided on the side wall of the moving seat (4); The rejection mechanism (7) includes a lead screw (701), a threaded seat (702), a vertical moving slide seat (703), a rubber blanking seat (704) and a rotating component. The lead screw (701) is rotatably arranged in the installation groove, and the lead screw (701) is connected to the rotating component. The rotating component is used for driving the lead screw to rotate; The top of the vertical moving slider (703) is connected to the rubber blanking seat (704), the rubber blanking seat (704) is located below the cigarette seat (5), the threaded seat (702) is sleeved on the lead screw (701) and is threadedly connected to the lead screw (701). A dovetail groove is formed in the middle of the threaded seat (702), and the threaded seat (702) is slidably connected to the dovetail groove.

6. The defective cigarette removing device according to claim 5, characterized in that, The rejection mechanism (7) further includes a guide post (705) and a Z-shaped chute (706). The guide post (705) is arranged at the bottom end of the vertical moving slider (703), and a Z-shaped chute (706) is formed inside the moving seat (4). The guide post (705) is slidably connected to the Z-shaped chute (706).

7. The defective cigarette rejecting device according to claim 5, characterized in that, A good product blanking seat (8) is arranged on the rejection table (1). The good product blanking seat (8) includes a support rod and an arc-shaped blanking plate. The support rod is fixed on the rejection table (1), the support rod is connected to the arc-shaped blanking plate, and the arc-shaped blanking plate is located outside the conveyor (3) and is inclined.

8. The defective cigarette removing device according to claim 5, characterized in that, The rejection mechanism (7) includes a limit seat (707), and the limit seat (707) is arranged at the rear end of the moving seat (4); The rotating assembly includes a second rotating shaft (708), a second gear (709), a groove (710), a first electro-hydraulic push rod (711), a second rack plate (712), a second electro-hydraulic push rod (713), a heightening frame (714), a third rack plate (715) and a second guide groove (716). The first end of the second rotating shaft (708) is connected to the lead screw (701), the second gear (709) is arranged at the second end of the second rotating shaft (708), a groove (710) is arranged on the conveyor (3), the first electro-hydraulic push rod (711) is arranged in the groove (710), and the second rack plate (712) is connected to the first electro-hydraulic push rod (711); The second electro-hydraulic push rod (713) is arranged on the side wall of the conveyor (3), the two ends of the heightening frame (714) are respectively connected to the second electro-hydraulic push rod (713) and the third rack plate (715), both the third rack plate (715) and the second rack plate (712) are meshed with the second gear (709), the input ends of the first electro-hydraulic push rod (711) and the second electro-hydraulic push rod (713) are electrically connected to the output end of the controller (2), and second guide grooves (716) are formed on the front sides of both the third rack plate (715) and the second rack plate (712).

9. The defective cigarette rejecting device according to claim 8, wherein Both the third rack plate (715) and the second rack plate (712) are horizontally and longitudinally offset from the first rack plate (66).

10. The defective cigarette rejecting device according to claim 4, wherein, The rejection mechanism (7) further includes a second barcode scanner (717) and a scrap chute (718). The scrap chute (718) is arranged at the front end of the rejection table (1). Two second barcode scanners (717) are provided at the front end of the conveyor (3). The second barcode scanners (717) are electrically connected to the controller (2), and the second barcode scanners (717) are cooperatively installed with the two-dimensional barcodes (671).

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