Removing device of cigarette carton sealing machine

Abstract

The utility model relates to the technical field of cigarette manufacturing, in particular to a cigarette carton sealing machine removing device which comprises an imaging detector and a conveying unit. The imaging detector is arranged on the conveying unit and is used for detecting the appearance of the cigarette carton; a qualified cigarette carton lifting device is arranged on the conveying unit at the downstream of the imaging detector, and qualified and unqualified cigarette cartons are sorted; a removing and collecting early warning device is arranged on the conveying unit at the downstream of the qualified cigarette carton lifting device and is used for collecting unqualified cigarette cartons; the eliminating and collecting early-warning device is provided with an induction early-warning device, after the unqualified cigarette cartons are fully stacked, the induction early-warning device is triggered, an early-warning signal is sent to a monitoring display screen, an operator is prompted to process the fully stacked cigarette cartons, and stagnation of a production line is avoided. By sensing and monitoring the position and the state of the cigarette carton, the action of the pushing component is automatically controlled, manual operation is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of cigarette manufacturing technology, specifically a rejection device for a cigarette pack sealing machine. Background Technology

[0002] In the tobacco product manufacturing process, the cigarette pack sealing machine is one of the key pieces of equipment. It is responsible for visually inspecting the finished cigarette packs and conveying qualified packs to the downstream packing machine for boxing. Existing cigarette pack sealing machines involve conveying cigarette packs via a conveyor belt to the visual inspection device at the front of the packing machine. Qualified packs are then conveyed to the downstream packing machine for boxing, while unqualified packs are pushed off the conveyor belt by a rejection cylinder and fall into a cigarette receiving frame. However, existing cigarette pack sealing machines have some technical challenges, especially in the rejection and collection device after the visual inspection. These problems mainly manifest in the following aspects:

[0003] 1. The existing appearance detector outputs the cigarette packs via a flat conveyor belt after inspection. Due to the unstable friction between the belt and the cigarette packs, the output speed varies. Furthermore, the rejection cylinder is located behind the appearance detector. During rejection, the rejection plate and the cigarette pack cannot be perfectly aligned, causing the cigarette packs to become skewed and jammed. Additionally, the cigarette packs may get stuck at the end of the guide strip during rejection, causing them to tear.

[0004] 2. The main actuator of the existing cigarette rejection device is a cylinder, with a rejection plate installed at the end of the cylinder piston rod. Because the rejection principle is longitudinal rejection of the cigarettes, the cylinder stroke is too long, and the time required for the piston to extend and retract is too long, causing interference with subsequent cigarette packs. Increasing the compressed air pressure in the cylinder would shorten the piston's action time and prevent interference with subsequent cigarette packs; however, excessive air pressure would impact and deform the cigarette pack's appearance, leading to waste of semi-finished cigarette packs.

[0005] 3. The existing cigarette rejection and receiving frame is too high. When cigarettes are rejected by the rejection cylinder and fall from the conveyor belt into the receiving frame, they are easily deformed by falling or by impact between cigarettes. In addition, there is no alarm device between the receiving frames. When the receiving frame is full, if the rejection cylinder continues to reject unqualified cigarettes, the cigarettes will overflow from the receiving frame and fall directly to the ground, causing secondary damage. It may also directly block the rejection mechanism, causing jamming of the rejection mechanism and equipment downtime.

[0006] To address the problems existing in the current technology, it is necessary to develop a new type of rejection device for cigarette pack sealing machines, optimize the rejection and collection process of cigarette packs, improve the stability and reliability of the cigarette pack sealing machine, increase production efficiency, reduce the defect rate and production costs, and provide stronger equipment support for tobacco product production. Summary of the Invention

[0007] To address the shortcomings of the existing technology, this utility model provides a rejection device for a cigarette pack sealing machine. By installing a qualified cigarette pack lifting device on the conveying unit downstream of the imaging detector, qualified and unqualified cigarette packs are sorted. Qualified cigarette packs enter the packing process through the qualified cigarette pack lifting device, while unqualified cigarette packs enter the rejection collection and early warning device through the conveying unit. When the rejection collection and early warning device is full, it issues a signal to prompt the operator to handle the situation.

[0008] Specifically, this utility model provides a rejection device for a cigarette pack sealing machine, including: an imaging detector and a conveying unit; the imaging detector is disposed on the conveying unit and is used to inspect the appearance of the cigarette packs; a qualified cigarette pack lifting device is disposed on the conveying unit downstream of the imaging detector and is used to sort qualified and unqualified cigarette packs; a rejection collection early warning device is disposed on the conveying unit downstream of the qualified cigarette pack lifting device and is used to collect unqualified cigarette packs; the rejection collection early warning device is equipped with a sensor early warning device, which is triggered when the stack of unqualified cigarette packs is full, and sends an early warning signal to the monitoring display screen to prompt the operator to process the stack of cigarette packs.

[0009] Furthermore, the conveying unit includes: a first conveyor belt, a first guide rail, a second conveyor belt, a second guide rail, and a third conveyor belt;

[0010] The first conveyor belt and the first guide rail are stacked and connected at one end to form a continuous conveying path. When the cigarette pack reaches the end of the first conveyor belt, it falls onto the first guide rail by its own gravity.

[0011] The other end of the first guide rail is connected to the qualified cigarette lifting device;

[0012] One end of the second conveyor belt is connected to the qualified cigarette lifting device via a rotating shaft, and unqualified cigarettes will be pushed to the second conveyor belt; the other end is stacked and connected to one end of the second guide rail. The second conveyor belt is set to be inclined downward along the conveying direction, and gravity helps unqualified cigarettes to smoothly enter the rejection collection and early warning device.

[0013] The second guide rail is connected to the rejection collection and early warning device and is used to transport substandard cigarette packs;

[0014] The third conveyor belt is connected to the qualified cigarette pack lifting device and is used to transport qualified cigarette packs.

[0015] Furthermore, the imaging detector is disposed on the first conveyor belt, and a first pushing cylinder is disposed at the bottom of the first conveyor belt. A push plate is disposed on the first pushing cylinder for pushing the cigarettes that have fallen onto the first guide rail.

[0016] Furthermore, guide plates are provided on both sides of the first guide rail. The spacing between the guide plates on both sides of the first guide rail gradually decreases from the direction of the first conveyor belt to the direction of the qualified cigarette lifting device. The spacing closer to the direction of the first conveyor belt is set to be greater than the length of the cigarette, ensuring that there is enough space to catch the falling cigarettes and avoid squeezing or damage when the cigarettes fall onto the guide plates. The spacing closer to the direction of the qualified cigarette lifting device gradually decreases to match the length of the cigarette. When the push plate pushes the cigarette, the gradually decreasing spacing of the guide plates guides the cigarettes to enter the qualified cigarette lifting device accurately and neatly, preventing the cigarettes from tilting.

[0017] Furthermore, the qualified cigarette pack lifting device includes: a qualified cigarette pack lifting and pushing device, a lifting bracket, a lifting limit block, a sealing plate, and a third pushing cylinder;

[0018] The qualified cigarette pack lifting and pushing component is used to push the qualified cigarette packs into the lifting bracket. The newly lifted qualified cigarette packs push the previously lifted qualified cigarette packs to the upper layer, forming a layer-by-layer pushing from bottom to top among the qualified cigarette packs. The lifting bracket is fixedly connected to the third conveyor belt and suspended above the first guide rail. The size of the lifting bracket is set to match the length and width of the qualified cigarette packs, providing temporary storage space for the qualified cigarette packs.

[0019] The lifting limit block is installed inside the lifting bracket and is connected to the lifting bracket by a hinge, allowing it to rotate flexibly to provide support for qualified cigarette packs and prevent them from slipping off.

[0020] The sealing plate is installed on the top of the lifting bracket;

[0021] The third push cylinder is installed above the lifting bracket. A push plate is provided on the third push cylinder. The push plate is driven by the third push cylinder to push the qualified cigarette packs from inside the lifting bracket to the third conveyor belt.

[0022] Furthermore, the qualified cigarette pack lifting and pushing component is a lifting cylinder, which is installed between the first guide rail and the second conveyor belt. A push plate is installed on the lifting cylinder to provide support for the qualified cigarette packs that need to be lifted. The extension and retraction of the cylinder pushes the push plate to push the qualified cigarette packs into the lifting bracket. When the lifting cylinder extends upward and pushes the qualified cigarette packs into the lifting bracket and contacts the lifting limit block, the upward thrust causes the lifting limit block to rotate upward along a preset path, making way for the qualified cigarette packs until they reach the predetermined position. When the lifting cylinder retracts, the lifting limit block rotates downward to support the qualified cigarette packs.

[0023] Alternatively, the qualified cigarette pack lifting and pushing component is a toothed belt lifting mechanism, which includes: an actuator belt, a rotating shaft, a protrusion, and a servo motor;

[0024] There are 4 rotating shafts; 2 are installed on each side of the lifting bracket, and 2 are installed on each side between the first guide rail and the second conveyor belt. The rotating shafts between the lifting bracket and the first guide rail and the second conveyor belt are connected by an actuator belt.

[0025] Multiple protrusions are provided and installed on the outside of the execution belt; the spacing between vertically adjacent protrusions is set to match the thickness of qualified cigarette strips, providing support for qualified cigarette strips that need to be lifted;

[0026] When the servo motor is started, the rotating shaft rotates, driving the actuator belt and the protrusion to rotate synchronously. The protrusion lifts the qualified cigarette pack into the lifting bracket. The upward thrust causes the lifting limit block to flip upward along the preset path, making way for the qualified cigarette pack until it reaches the predetermined position. The rotating shaft continues to rotate, and the protrusion rises to the highest point and leaves the lifting bracket and the qualified cigarette pack. The lifting limit block rotates downward to support the qualified cigarette pack.

[0027] Alternatively, the qualified cigarette pack lifting and pushing component is a qualified cigarette pack swastika lifting mechanism, installed between the first guide rail and the second conveyor belt, which includes: a qualified cigarette pack drive motor, a qualified cigarette pack lifting swastika, and a qualified cigarette pack drive shaft;

[0028] When the qualified cigarette pack drive motor is started, the qualified cigarette pack drive shaft rotates, causing the qualified cigarette pack lifting swastika to rotate synchronously, lifting the qualified cigarette pack into the lifting bracket. The qualified cigarette pack lifting swastika provides support for the qualified cigarette pack. The qualified cigarette pack drive shaft rotates again, and the qualified cigarette pack at the top of the qualified cigarette pack lifting swastika is lifted one position upward. The upward thrust causes the lifting limit block to flip upward along the preset path, making way for the qualified cigarette pack until it reaches the predetermined position. The lifting limit block then rotates downward to support the qualified cigarette pack.

[0029] Furthermore, a second push cylinder is installed below the second conveyor belt, and a push plate is provided on the second push cylinder. The push plate is driven by the second push cylinder to push the qualified cigarette strips that have fallen from the second conveyor belt onto the second guide rail into the rejection collection and warning device.

[0030] Furthermore, the rejection collection and early warning device includes: a collection and stacking storage rack and a non-conforming cigarette pack stacking and pushing mechanism;

[0031] The collection and stacking storage rack is installed above the second guide rail and is used to collect defective cigarette packs. The collection and stacking storage rack is equipped with multiple workstations to provide more storage space for defective cigarette packs. The size of each workstation is matched with the size of the cigarette packs. Each defective cigarette pack is stored in an independent workstation. The defective cigarette packs are pushed into workstation number one in sequence by the second push cylinder. The defective cigarette packs previously stored in workstation number one will be pushed to workstation number two in sequence, and so on.

[0032] The collection and stacking storage rack is equipped with a stacking limit block, which is connected to the collection and stacking storage rack by a hinge, allowing it to rotate flexibly and providing support for unqualified cigarette packs;

[0033] The non-conforming cigarette pack stacking and pushing mechanism is used to push non-conforming cigarette packs into the collection and stacking storage rack. The newly lifted non-conforming cigarette packs push the previously lifted non-conforming cigarette packs to the upper layer, forming a bottom-up, layer-by-layer pushing effect between non-conforming cigarette packs.

[0034] Furthermore, the defective cigarette stacking and pushing mechanism is a defective cigarette collection swastika lifting mechanism, which is set on the corresponding work station; it includes: a cigarette collection drive motor, a cigarette collection lifting swastika tooth block, and a cigarette collection drive shaft;

[0035] When the cigarette collection drive motor is started, the cigarette collection drive shaft rotates, causing the cigarette collection lifting swastika tooth block to rotate synchronously, lifting the defective cigarettes into the collection stacking storage rack. The cigarette collection lifting swastika tooth block provides support for the defective cigarettes. The cigarette collection drive shaft rotates again, lifting the defective cigarettes one position. At the same time, the upward thrust causes the stacking limit block to flip upward along the preset path, making way for the defective cigarettes until they reach the predetermined position. The stacking limit block then rotates downward to support the defective cigarettes.

[0036] Alternatively, the non-conforming cigarette pack stacking mechanism is a cigarette pack collection and pushing cylinder; the cigarette pack collection and pushing cylinder is equipped with a push plate to provide support for the non-conforming cigarette packs that need to be lifted; the push plate is pushed by its extension and retraction to push the non-conforming cigarette packs into the collection and stacking storage rack; when the cigarette pack collection and pushing cylinder extends upward to push the non-conforming cigarette packs into the collection and stacking storage rack and contact the cigarette pack collection limiting block, the upward thrust causes the cigarette pack collection limiting block to rotate upward along a preset path, making way for the non-conforming cigarette packs until they reach the predetermined position; when the cigarette pack collection and pushing cylinder retracts, the cigarette pack collection limiting block rotates downward to support the non-conforming cigarette packs.

[0037] Furthermore, it also includes a sensing unit, which includes: a first proximity switch, a second proximity switch, a third proximity switch, a fourth proximity switch, and a fifth proximity switch;

[0038] The first proximity switch is installed on the guide plate of the first guide rail and is used to sense the cigarettes that fall from the first conveyor belt onto the first guide rail. When the cigarettes reach the sensing area, the first proximity switch is triggered and a signal is transmitted to the solenoid reversing valve, which starts the first push cylinder to perform a telescopic movement to push the cigarettes out of the proximity switch sensing area.

[0039] The second proximity switch is installed on the guide plate at the corresponding position of the qualified cigarette pack lifting device. It is used to sense the arrival of the cigarette pack and activate the qualified cigarette pack lifting and pushing component to realize the automatic lifting of the qualified cigarette pack.

[0040] The third proximity switch is installed on the sealing plate of the lifting bracket to monitor the fullness of qualified cigarette packs in the lifting bracket. When the qualified cigarette packs in the lifting bracket reach the preset quantity or height, the third proximity switch is triggered, and a signal is sent to the solenoid reversing valve to start the third push cylinder to perform telescopic movement, which pushes the qualified cigarette packs in the lifting bracket to the third conveyor belt.

[0041] The fourth proximity switch is installed on the second guide rail and is used to sense the defective cigarette packs that fall from the second conveyor belt onto the second guide rail. When the defective cigarette packs reach the sensing area, the fourth proximity switch is triggered, and the signal is transmitted to the electromagnetic reversing valve, which starts the second push cylinder to perform a telescopic movement, pushing the defective cigarette packs into the rejection collection and warning device.

[0042] The fifth proximity switch is installed on the second guide rail, located near the last station. When a defective cigarette pack is pushed into the last station, the fifth proximity switch is triggered, activating the cigarette pack stacking and pushing mechanism to lift the defective cigarette packs at the station into the collection and stacking storage rack.

[0043] Working principle: When the cigarette pack sealing machine's rejection device is working, firstly, the cigarette packs are conveyed from the upstream equipment to the first conveyor belt 21, and enter the appearance inspection area of ​​the imaging detector 1. The imaging detector 1 will conduct a comprehensive inspection of the appearance of the cigarette packs to identify whether there are any appearance defects. Based on the detection results of the imaging detector 1, the cigarette packs are sorted and divided into qualified cigarette packs and unqualified cigarette packs, forming two different conveying modes:

[0044] 1. Working Principle: Qualified cigarette packs are continuously conveyed along the path by the first conveyor belt 21. When they reach the end of the first conveyor belt 21, the qualified cigarette packs fall onto the first guide rail 22 due to their own gravity. The guide plates 221 on both sides of the first guide rail 22 are spaced closer to the first conveyor belt 21 than the length of the qualified cigarette pack, ensuring sufficient space to catch the falling cigarette packs and preventing them from being squeezed or damaged. The spacing closer to the qualified cigarette pack lifting device 5 gradually decreases to match the length of the qualified cigarette pack. When the pusher plate pushes the qualified cigarette pack, the gradually decreasing spacing guides the qualified cigarette pack accurately and neatly into the qualified cigarette pack lifting device 5, preventing the qualified cigarette pack from tilting. When the qualified cigarette pack falls onto the first guide rail 22, it enters the sensing range of the first proximity switch 31. The system will immediately sense the arrival of a qualified cigarette pack and trigger a corresponding signal. This signal will then be simultaneously transmitted to the solenoid reversing valve, activating the first pushing cylinder 6. The first pushing cylinder 6 drives the push plate to push the qualified cigarette pack out of the sensing area of ​​the first proximity switch 31. After a newly dropped qualified cigarette pack is pushed out of the sensing area of ​​the first proximity switch 31, it will push the previously dropped qualified cigarette pack to the next position in sequence, forming a continuous pushing process until the qualified cigarette pack is pushed into the qualified cigarette pack lifting device 5. When the qualified cigarette pack reaches the qualified cigarette pack lifting device 5, it triggers the second proximity switch 32, activating the qualified cigarette pack lifting pushing component 51 to push the qualified cigarette pack into the lifting bracket 52. When the qualified cigarette pack is pushed into the lifting bracket 52 and contacts the lifting limit block 521, the upward pushing force The lifting limit block 521 is driven to flip upward along the preset path to make way for qualified cigarette packs until the cigarette packs reach the predetermined position. Then, the lifting push component 51 separates from the qualified cigarette packs, and the lifting limit block 521 rotates downward to support the qualified cigarette packs. The newly lifted qualified cigarette packs push the previously lifted qualified cigarette packs to the upper layer, and the qualified cigarette packs are pushed from bottom to top layer by layer. They are stacked from bottom to top in the lifting bracket 52. When the qualified cigarette packs in the lifting bracket 52 reach the preset number or height, the third proximity switch 33 is triggered. At the same time, the signal is sent to the electromagnetic reversing valve, which starts the third push cylinder 523 to perform telescopic movement, pushing the qualified cigarette packs from the lifting bracket 52 to the third conveyor belt 25, and then entering the packing process through the third conveyor belt 25.

[0045] 2. Working Principle of Non-conforming Cigarettes: When a non-conforming cigarette pack is detected, the imaging detector 1 sends a signal to the counter, recording the number of the non-conforming cigarette pack. The controller sends a signal to the fourth proximity switch 34, forming a short circuit between the controller and the fourth proximity switch 34. This blocks the signal path of the qualified cigarette pack lifting and pushing component 51, ensuring that the component does not operate when the non-conforming cigarette pack arrives. When the non-conforming cigarette pack reaches the qualified cigarette pack lifting device 5, the electromagnetic reversing valve disconnects the signal from the qualified cigarette pack lifting and pushing component 51, and the qualified cigarette pack lifting and pushing component 51 will not perform any extension or retraction movement. The non-conforming cigarette pack continues to be conveyed along the path by the first conveyor belt 21. When it reaches the end of the first conveyor belt 21, the non-conforming cigarette pack falls onto the first guide rail 22 due to its own gravity. When the non-conforming cigarette pack falls onto the first guide rail 22, it triggers the proximity switch 31, which in turn activates the first pushing cylinder 6. The first pushing cylinder 6 drives the push plate to push the non-conforming cigarette pack forward until it is pushed onto the second conveyor belt 23. When the cigarette packs reach the end of the second conveyor belt 23, the defective cigarette packs fall onto the second guide rail 24 under their own weight, triggering the fourth proximity switch 34. This sends a signal to the solenoid reversing valve, activating the second push cylinder 8 to extend and retract, pushing the defective cigarette packs to the cigarette pack station within the rejection and collection early warning device 7. When a new defective cigarette pack is pushed to the cigarette pack station within the rejection and collection early warning device 7, the defective cigarette pack at station one is moved to station two, the defective cigarette pack at station two is moved to station three, and so on, realizing the sequential movement of defective cigarette packs between stations. When the defective cigarette pack is pushed into the last station, the fifth proximity switch 35 is triggered, activating the cigarette pack stacking and pushing mechanism 72. The defective cigarette packs at the workstation are lifted into the collection and stacking rack 71 by hydraulic or electric drive. The newly lifted defective cigarette packs push the previously lifted cigarette packs to the upper layer, and the defective cigarette packs are pushed from bottom to top, forming a layer-by-layer stacking in the collection and stacking rack 71. When the defective cigarette packs are full, the sensor alarm 4 is triggered, and an alarm signal is sent to the monitoring display screen to prompt the operator to handle the full stack of defective cigarette packs. Beneficial effects

[0046] This invention achieves continuous movement and accurate guidance of cigarette packs during the transportation process by setting up a conveying unit, reducing malfunctions and losses caused by cigarette packs falling or being misaligned.

[0047] This invention features a qualified cigarette pack lifting device that automatically lifts and pushes qualified cigarette packs onto a third conveyor belt, reducing manual operation and improving production efficiency.

[0048] This invention can promptly collect substandard cigarette packs by setting up a rejection collection and early warning device, and send an early warning signal to the monitoring display screen through a sensor to remind operators to handle the stacked cigarette packs, thus avoiding production line shutdowns.

[0049] This invention enhances the intelligence of the equipment by setting up a sensing unit. By sensing and monitoring the position and status of the cigarette packs, it automatically controls the movement of the pushing components, further reducing the burden of manual operation.

[0050] This invention reduces damage to cigarette packs during transport by setting guide plates on the first guide rail. The varying spacing of the guide plates not only ensures sufficient space for the first guide rail to receive fallen cigarette packs, but also guides the cigarette packs accurately and neatly into the qualified cigarette pack lifting device, preventing the cigarette packs from tilting.

[0051] The collection and stacking storage rack is equipped with multiple workstations, providing more storage space for substandard cigarette packs. The size of each workstation is matched to the cigarette packs to ensure that the cigarette packs are stored neatly. Attached Figure Description

[0052] Figure 1 This is a schematic diagram of the working state of the device of this utility model;

[0053] Figure 2 This is a side view of the overall structure of the device of this utility model;

[0054] Figure 3 This is a schematic diagram showing the connection between the imaging detector and the transport unit of the present invention;

[0055] Figure 4 This is a schematic diagram of the structure of the qualified cigarette lifting and pushing component in Embodiment 1 of the present invention;

[0056] Figure 5 This is a schematic diagram of the structure of the qualified cigarette lifting and pushing component in Embodiment 2 of the present invention;

[0057] Figure 6 This is a schematic diagram of the structure of the qualified cigarette lifting and pushing component in Embodiment 3 of the device;

[0058] Figure 7 This is a schematic diagram showing the connection between the lifting bracket and the third conveyor belt of the present invention;

[0059] Figure 8 A side view of the component that lifts the qualified cigarette pack;

[0060] Figure 9 for Figure 8 Schematic diagram of surface AA;

[0061] Figure 10 This is a schematic diagram of the installation of the lifting bracket and lifting limit block of the present invention;

[0062] Figure 11 This is a schematic diagram of the rotation of the drive shaft of the qualified cigarette pack in Embodiment 3 of this utility model;

[0063] Figure 12 This is a schematic diagram of the structure of the qualified cigarette lifting and pushing component in Embodiment 3 of the present invention;

[0064] Figure 13 This is a schematic diagram of the installation of the stacking storage rack and the stacking limit block of the present invention.

[0065] Figure 14 This is a schematic diagram of the swastika-shaped lifting mechanism for collecting defective cigarette packs in this utility model device;

[0066] Figure 15 This is a schematic diagram of the enhanced state of the rejection and collection early warning device in Embodiment 4 of this utility model.

[0067] Figure 16 This is a schematic diagram of the structure of the early warning device for the elimination of waste in this utility model.

[0068] The diagram is labeled as follows: 1—Imaging detector, 4—Induction warning device, 6—First push cylinder, 8—Second push cylinder, 9—Smoke bar;

[0069] 2—Conveying Unit: 21—First Conveyor Belt, 22—First Guide Rail, 221—Guide Plate, 23—Second Conveyor Belt, 231—Rotating Shaft, 24—Second Guide Rail, 25—Third Conveyor Belt;

[0070] 3—Sensing unit: 31—First proximity switch, 32—Second proximity switch, 33—Third proximity switch, 34—Fourth proximity switch, 35—Fifth proximity switch;

[0071] 5—Qualified cigarette pack lifting device: 51—Qualified cigarette pack lifting push component, 511—Lifting cylinder, 512—Actuating belt, 515—Rotating shaft, 514—Protrusion, 513—Qualified cigarette pack swastika lifting mechanism, 5131—Qualified cigarette pack lifting swastika tooth block, 5132—Qualified cigarette pack drive shaft, 52—Lifting bracket, 521—Lifting limit block, 522—Sealing plate, 523—Third push cylinder;

[0072] 7—Rejection collection early warning device; 71—Collection stacking storage rack; 711—Stacking limit plate; 72—Unqualified cigarette pack stacking push mechanism; 721—Unqualified cigarette pack collection swastika lifting mechanism; 7211—Cigarette pack collection lifting swastika tooth block; 7212—Cigarette pack collection drive shaft; 722—Cigarette pack collection push cylinder. Detailed Implementation

[0073] The technical solution will now be described in detail with reference to the accompanying drawings of the embodiments of this utility model. Example 1

[0074] like Figure 1 As shown, a rejection device for a cigarette pack sealing machine includes an imaging detector 1, a conveying unit 2, a sensing unit 3, a sensing early warning device 4, a qualified cigarette pack lifting device 5, a first pushing cylinder 6, a rejection collection early warning device 7, a second pushing cylinder 8, and cigarette packs 9; the conveying unit 2 includes: a first conveyor belt 21, a first guide rail 22, a guide plate 221, a second conveyor belt 23, a rotating shaft 231, a second guide rail 24, and a third conveyor belt 25; the sensing unit 3 includes: a first proximity switch 31, a second proximity switch 32, and a third proximity switch. 33. Fourth proximity switch; 34. Fifth proximity switch; 35. Qualified cigarette pack lifting device 5 includes: qualified cigarette pack lifting and pushing component 51, lifting cylinder 511, lifting bracket 52, lifting limit block 521, sealing plate 522, and third pushing cylinder 523; rejection collection and early warning device 7 includes: collection and stacking storage rack 71, stacking limit plate 711, unqualified cigarette pack stacking and pushing mechanism 72, unqualified cigarette pack collection swastika lifting mechanism 721, cigarette pack collection and lifting swastika tooth block 7211, and cigarette pack collection drive shaft 7212;

[0075] like Figure 3 As shown, the imaging detector 1 is mounted on the first conveyor belt 21 for inspecting the appearance of the cigarette packs; the first pushing cylinder 6 is located at the bottom of the first conveyor belt 21, and a pusher plate is mounted on the first pushing cylinder 6 to push the cigarette packs that fall onto the first guide rail 22; the first conveyor belt 21 and the first guide rail 22 are stacked and connected at one end to form a continuous conveying path. When the cigarette packs reach the end of the first conveyor belt 21, they fall onto the first guide rail 22 by their own gravity; the other end of the first guide rail 22 is connected to the qualified cigarette pack lifting device 5. One end of the second conveyor belt 23 is connected to the qualified cigarette lifting device 5 via a rotating shaft 231, and unqualified cigarettes will be pushed to the second conveyor belt 23; the other end is stacked and connected to one end of the second guide rail 24. The second conveyor belt 23 is set to slope downward along the conveying direction, using gravity to help unqualified cigarettes smoothly enter the rejection collection and warning device 7; the second guide rail 24 is connected to the rejection collection and warning device 7 and is used to transport unqualified cigarettes; the third conveyor belt 25 is connected to the qualified cigarette lifting device 5 and is used to transport qualified cigarettes.

[0076] like Figure 4As shown, guide plates 221 are arranged on both sides of the first guide rail 22, with the spacing gradually decreasing from the direction of the first conveyor belt 21 to the direction of the qualified cigarette lifting device 5. The spacing closer to the first conveyor belt 21 is set to be greater than the length of the cigarette, ensuring sufficient space to catch the falling cigarettes and preventing them from being squeezed or damaged when they fall onto the guide plates 221. The spacing closer to the qualified cigarette lifting device 5 gradually decreases to match the length of the cigarette. When the pusher pushes the cigarette, the spacing of the guide plates 221 gradually decreases to guide the cigarette accurately and neatly into the qualified cigarette lifting device 5, preventing the cigarette from tilting.

[0077] like Figure 1 As shown, the qualified cigarette pack lifting and pushing component 51 is used to push the cigarette packs into the lifting bracket 52. The newly lifted cigarette packs push the previously lifted cigarette packs to the upper layer, forming a layer-by-layer pushing from bottom to top among the cigarette packs. The lifting bracket 52 is fixedly connected to the third conveyor belt 25 and suspended above the first guide rail 22. The size of the lifting bracket 52 is set to match the length and width of the cigarette packs, providing temporary storage space for the cigarette packs. The lifting limit block 521 is set inside the lifting bracket 52 and is connected to the lifting bracket 52 by a hinge, allowing it to rotate flexibly, providing support for the cigarette packs and preventing them from slipping. The sealing plate 522 is installed on the top of the lifting bracket 52. The third pushing cylinder 523 is installed above the lifting bracket 52 and is equipped with a push plate. The third pushing cylinder 523 drives the push plate to push the qualified cigarette packs from the lifting bracket 52 to the third conveyor belt 25.

[0078] like Figure 4 As shown, the qualified cigarette pack lifting and pushing component 51 is a lifting cylinder 511, which is installed between the first guide rail 22 and the second conveyor belt 23. A push plate is installed on the lifting cylinder 511 to provide support for the cigarette packs that need to be lifted. The extension and retraction of the cylinder pushes the push plate to push the cigarette packs into the lifting bracket 52. When the lifting cylinder 511 extends upward and pushes the cigarette packs into the lifting bracket 52 to contact the lifting limit block 521, the upward thrust causes the lifting limit block 521 to rotate upward along a preset path, making way for the cigarette packs until they reach the predetermined position. When the lifting cylinder 511 retracts, the lifting limit block 521 rotates downward to support the cigarette packs.

[0079] like Figure 2 , 16 As shown, the second push cylinder 8 is installed below the second conveyor belt 23. A push plate is provided on the second push cylinder 8. The push plate is driven by the second push cylinder 8 to push the cigarette packs that fall from the second conveyor belt 23 onto the second guide rail 24 to the corresponding workstation of the collection and stacking storage rack 71. The collection and stacking storage rack 71 is installed above the second guide rail 24 and is used to collect unqualified cigarette packs.

[0080] like Figure 14 ,16 The collection and stacking storage rack 71 shown has multiple workstations to provide more storage space for defective cigarette packs. The size of each workstation matches the size of the cigarette packs, and each cigarette pack is stored in an independent workstation. The second push cylinder 8 pushes the cigarette packs into workstation number one in sequence. The cigarette packs previously stored in workstation number one are then pushed to workstation number two in sequence, and the cigarette packs in workstation number two are then pushed to workstation number three, and so on. The stacking limit block 711 is set inside the collection and stacking storage rack 71 and is connected to the collection and stacking storage rack 71 by a hinge, allowing it to rotate flexibly and providing support for the cigarette packs.

[0081] like Figure 15 As shown, the defective cigarette stacking and pushing mechanism 72 is used to push defective cigarettes into the collection and stacking storage rack 71. The newly lifted cigarettes push the previously lifted cigarettes to the upper layer, forming a layer-by-layer push from bottom to top between the cigarettes. The defective cigarette stacking and pushing mechanism 72 is a defective cigarette collection swastika lifting mechanism 721, which is set on the corresponding work station and is equipped with a cigarette collection drive motor. When the cigarette collection drive motor is started, the cigarette collection drive shaft 7212 rotates, driving the cigarette collection lifting swastika tooth block 7211 to rotate synchronously, lifting the cigarettes into the collection and stacking storage rack 71. The cigarette collection lifting swastika tooth block 7211 provides support for the cigarettes. The cigarette collection drive shaft 7212 rotates again, lifting the cigarettes to one work station. At the same time, the upward thrust drives the stacking limit block 711 to flip upward along the preset path, making way for the cigarettes until the cigarettes reach the predetermined position. The stacking limit block 711 rotates downward to support the cigarettes.

[0082] like Figure 2 As shown, the first proximity switch 31 is installed on the guide plate 221 of the first guide rail 22. It is used to sense the cigarettes that fall from the first conveyor belt 21 onto the first guide rail 22. After the cigarettes reach the sensing area, the first proximity switch 31 is triggered, and the signal is transmitted to the electromagnetic reversing valve to start the first push cylinder 6 to perform telescopic movement and push the cigarettes out of the sensing area of ​​the proximity switch 31.

[0083] The second proximity switch 32 is installed on the guide plate 221 at the corresponding position of the qualified cigarette lifting device 5. It is used to sense the arrival of the cigarette pack, transmit the signal to the electromagnetic reversing valve, and start the qualified cigarette pack lifting push component 51 to perform telescopic movement, so as to realize the automatic lifting of the qualified cigarette pack.

[0084] The third proximity switch 33 is installed on the sealing plate 522 of the lifting bracket 52 to monitor the fullness of the cigarette packs in the lifting bracket 52. When the number or height of the cigarette packs in the lifting bracket 52 reaches the preset amount, the third proximity switch 33 is triggered and a signal is sent to the electromagnetic reversing valve to start the third push cylinder 523 to perform telescopic movement, pushing the qualified cigarette packs from the lifting bracket 52 to the third conveyor belt 25.

[0085] The fourth proximity switch 34 is installed on the second guide rail 24 and is used to sense the cigarettes that fall from the second conveyor belt 23 onto the second guide rail 23. When the cigarettes reach the sensing area, the fourth proximity switch 34 is triggered, and the signal is transmitted to the electromagnetic reversing valve, which starts the second push cylinder 8 to perform telescopic movement, pushing the unqualified cigarettes into the rejection collection early warning device 7.

[0086] The fifth proximity switch 35 is installed on the second guide rail 24 and is located near the last station. When the cigarette pack is pushed into the last station, the fifth proximity switch 35 is triggered, which starts the cigarette pack stacking pushing mechanism 72 to lift the cigarette packs on the station into the collection stacking storage rack 71.

[0087] like Figure 1As shown, when the qualified cigarette pack sealing machine rejection device is working, firstly, the cigarette pack 9 is conveyed from the upstream equipment to the first conveyor belt 21 and enters the appearance inspection area of ​​the imaging detector 1. The imaging detector 1 will conduct a comprehensive inspection of the appearance of the cigarette pack 9 to identify whether the cigarette pack 9 has various appearance defects. Based on the detection results of the imaging detector 1, the cigarette pack 9 is sorted and classified into qualified cigarette packs and unqualified cigarette packs. The qualified cigarette packs are conveyed along the path by the first conveyor belt 21. When they reach the end of the first conveyor belt 21, the qualified cigarette packs fall onto the first guide rail 22 due to their own gravity. The guide plates 221 on both sides of the first guide rail 22 are spaced closer to the first conveyor belt 21 than the length of the qualified cigarette packs to ensure sufficient space to catch the falling cigarette packs and prevent them from being squeezed or damaged when they fall onto the guide plates 221. The spacing closer to the qualified cigarette pack lifting device 5 gradually decreases to match the length of the qualified cigarette packs. When the pusher plate pushes the qualified cigarette packs, the gradually decreasing spacing guides the qualified cigarette packs to enter the qualified cigarette pack lifting device 5 accurately and neatly, preventing the qualified cigarette packs from tilting. When the qualified cigarette packs fall onto the first guide rail 22, they enter the sensing range of the first proximity switch 31. The system immediately senses the arrival of a qualified cigarette pack and triggers a corresponding signal. This signal is then simultaneously transmitted to the solenoid directional valve, activating the first pushing cylinder 6. The first pushing cylinder 6 drives the push plate to push the qualified cigarette pack out of the sensing area of ​​the first proximity switch 31. After a newly dropped qualified cigarette pack is pushed out of the sensing area of ​​the first proximity switch 31, it will sequentially push the previously dropped qualified cigarette pack to the next position, forming a continuous pushing process until the qualified cigarette pack is pushed into the qualified cigarette pack lifting device 5. When the qualified cigarette pack reaches the qualified cigarette pack lifting device 5, it triggers the second proximity switch 32 and simultaneously transmits a signal to the solenoid directional valve, activating the lifting cylinder 511 set in the qualified cigarette pack lifting pushing component 51 to push the cigarette pack into the lifting bracket 52. When the lifting cylinder 511 extends upward to push the cigarette pack into the lifting bracket 52... When the inner part contacts the lifting limit block 521, the upward thrust causes the lifting limit block 521 to flip upward along the preset path, making way for the qualified cigarette packs until the qualified cigarette packs reach the predetermined position; when the lifting cylinder 511 retracts, the lifting limit block 521 rotates downward to support the qualified cigarette packs, and the newly lifted qualified cigarette packs push the previously lifted qualified cigarette packs to the upper layer, forming a layer-by-layer push from bottom to top among the qualified cigarette packs, forming a layer-by-layer stack from bottom to top in the lifting bracket 52. When the qualified cigarette packs in the lifting bracket 52 reach the preset number or height, the third proximity switch 33 is triggered, and at the same time, a signal is sent to the electromagnetic reversing valve to start the third push cylinder 523 to perform telescopic movement, pushing the qualified cigarette packs from the lifting bracket 52 to the third conveyor belt 25, and entering the packing process through the third conveyor belt 25;

[0088] When a defective cigarette pack is detected, the imaging detector 1 sends a signal to the counter to record the number of the defective cigarette pack. The controller sends a signal to the fourth proximity switch 34, forming a short circuit between the controller and the fourth proximity switch 34. This blocks the signal path of the qualified cigarette pack lifting and pushing component 51, ensuring that the component does not operate when the defective cigarette pack arrives. When the defective cigarette pack reaches the qualified cigarette pack lifting device 5, the electromagnetic reversing valve disconnects the signal from the qualified cigarette pack lifting and pushing component 51, and the qualified cigarette pack lifting and pushing component 51 will not perform any extension or retraction movement. The defective cigarette pack continues to be conveyed along the path by the first conveyor belt 21. When it reaches the end of the first conveyor belt 21, the defective cigarette pack falls onto the first guide rail 22 due to its own gravity. When the defective cigarette pack falls onto the first guide rail 22, it triggers the proximity switch 31, which in turn activates the first pushing cylinder 6. The first pushing cylinder 6 drives the push plate to push the defective cigarette pack forward until it is pushed onto the second conveyor belt 23. When the cigarette packs reach the end of the second conveyor belt 23, the defective cigarette packs fall onto the second guide rail 24 under their own weight, triggering the fourth proximity switch 34. This sends a signal to the solenoid reversing valve, which activates the second push cylinder 8 to extend and retract, pushing the defective cigarette packs to the cigarette pack station inside the rejection collection and early warning device 7. When a new defective cigarette pack is pushed to the rejection collection and early warning device 7... When the cigarette packs are placed in the designated workstations, the defective cigarette packs at workstation 1 are moved to workstation 2, and so on, thus achieving sequential movement of the cigarettes between workstations. When a defective cigarette pack is pushed into the last workstation, the fifth proximity switch 35 is triggered, activating the defective cigarette pack collection swastika lifting mechanism 721. The cigarette pack collection drive motor starts, and the cigarette pack collection drive shaft 7212 rotates, causing the cigarette pack collection lifting swastika toothed block 7211 to rotate synchronously, lifting the defective cigarette packs into the collection stacking storage rack 71. The cigarette pack collection lifting swastika toothed block 7211 provides support for the defective cigarette packs, and the cigarette packs are collected... The drive shaft 7212 rotates again, lifting the defective cigarette packs to one station. At the same time, the upward thrust drives the stacking limit block 711 to flip upward along the preset path, making way for the defective cigarette packs until they reach the predetermined position. The stacking limit block 711 then rotates downward to support the defective cigarette packs. The newly lifted defective cigarette packs push the previously lifted defective cigarette packs to the next layer, creating a bottom-up, layer-by-layer push between the cigarette packs. They are stacked from bottom to top in the collection and stacking rack 71. When the defective cigarette packs are fully stacked, the sensor alarm 4 is triggered, sending an alarm signal to the monitoring display screen to prompt the operator to handle the fully stacked cigarette packs. Example 2

[0089] like Figure 5As shown, the difference from Embodiment 1 is that the qualified cigarette pack lifting and pushing component 51 is set as a toothed belt lifting mechanism, including: an execution belt 512, a rotating shaft 515, protrusions 514, and a servo motor; there are 4 rotating shafts 515; 2 are installed on each side of the lifting bracket 52, and 2 are installed on each side between the first guide rail 22 and the second conveyor belt 23; the rotating shafts 515 between the lifting bracket 52 and the first guide rail 22 and the second conveyor belt 23 are connected by the execution belt 512; there are multiple protrusions 514 installed on the outside of the execution belt 512; the spacing between vertically adjacent protrusions 514 is set to match the thickness of the cigarette pack, providing support for the cigarette packs that need to be lifted;

[0090] When the servo motor is started, the rotating shaft 515 rotates, driving the actuator belt 512 and the protrusion 514 to rotate synchronously. The protrusion 514 lifts the cigarette pack into the lifting bracket 52. The upward thrust drives the lifting limit block 521 to flip upward along the preset path, making way for the cigarette pack until it reaches the predetermined position. The rotating shaft 515 continues to rotate, and the protrusion 514 rises to the highest point and leaves the lifting bracket 52 and the cigarette pack. The lifting limit block 521 rotates downward to support the cigarette pack. Example 3

[0091] like Figure 6 As shown, the difference from Embodiments 1 and 2 is that the qualified cigarette lifting and pushing component 51 is set as a qualified cigarette swastika lifting mechanism 513, which is installed between the first guide rail 22 and the second conveyor belt 23. It includes: a qualified cigarette drive motor, a qualified cigarette lifting swastika 5131, and a qualified cigarette drive shaft 5132.

[0092] When the qualified cigarette pack drive motor is started, the qualified cigarette pack drive shaft 5132 rotates, driving the qualified cigarette pack lifting swastika 5131 to rotate synchronously, lifting the cigarette pack into the lifting bracket 52. The qualified cigarette pack lifting swastika 5131 provides support for the cigarette pack. The qualified cigarette pack drive shaft 5132 rotates again, and the cigarette pack at the top of the qualified cigarette pack lifting swastika 5131 is lifted one position upward. The upward thrust drives the lifting limit block 521 to flip upward along the preset path, making way for the cigarette pack until the cigarette pack reaches the predetermined position. The lifting limit block 521 then rotates downward to support the cigarette pack. Example 4

[0093] like Figure 15As shown, the difference from Embodiment 1 is that the defective cigarette stacking pushing mechanism 72 is set as a cigarette collection pushing cylinder 722; a push plate is installed on the cigarette collection pushing cylinder 722 to provide support for the defective cigarettes that need to be lifted; the push plate is pushed by its extension and retraction to push the defective cigarettes into the collection and stacking storage rack 71; when the cigarette collection pushing cylinder 722 extends upward to push the defective cigarettes into the collection and stacking storage rack 71 and contacts the cigarette collection limiting block 7222, the upward thrust causes the cigarette collection limiting block 7222 to rotate upward along a preset path, making way for the defective cigarettes until the defective cigarettes reach the predetermined position; when the cigarette collection pushing cylinder 722 retracts, the cigarette collection limiting block 7222 rotates downward to support the defective cigarettes.

[0094] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A rejection device for a cigarette pack sealing machine, comprising: An imaging detector (1) and a conveying unit (2) are provided. The imaging detector (1) is disposed on the conveying unit (2) and is used to detect the appearance of the cigarette pack. The downstream conveying unit (2) of the imaging detector (1) is equipped with a qualified cigarette lifting device (5) for sorting qualified and unqualified cigarettes. The downstream conveying unit (2) of the qualified cigarette lifting device (5) is equipped with a rejection collection early warning device (7) for collecting unqualified cigarettes; The rejection collection early warning device (7) is equipped with a sensor (4). When the stack of unqualified cigarette packs is full, the sensor (4) is triggered and an early warning signal is sent to the monitoring display screen.

2. The rejection device for cigarette pack sealing machine according to claim 1, characterized in that: The conveying unit (2) includes: a first conveyor belt (21), a first guide rail (22), a second conveyor belt (23), a second guide rail (24), and a third conveyor belt (25); The first conveyor belt (21) and the first guide rail (22) are stacked and connected at one end to form a continuous conveying path. When the cigarette pack reaches the end of the first conveyor belt (21), it falls onto the first guide rail (22) by its own gravity. The other end of the first guide rail (22) is connected to the qualified cigarette lifting device (5); One end of the second conveyor belt (23) is connected to the qualified cigarette lifting device (5) via a rotating shaft (231), and the unqualified cigarettes will be pushed to the second conveyor belt (23); the other end is connected to one end of the second guide rail (24). The second conveyor belt (23) is set to be inclined downward along the conveying direction, and gravity helps the unqualified cigarettes to smoothly enter the rejection collection and warning device (7). The second guide rail (24) is connected to the rejection collection and early warning device (7) for conveying unqualified cigarette packs; The third conveyor belt (25) is connected to the qualified cigarette lifting device (5) and is used to transport qualified cigarettes.

3. The rejection device for cigarette pack sealing machine according to claim 2, characterized in that: The imaging detector (1) is mounted on the first conveyor belt (21). A first push cylinder (6) is mounted on the bottom of the first conveyor belt (21). A push plate is mounted on the first push cylinder (6) to push the cigarettes that have fallen onto the first guide rail (22).

4. The rejection device for the cigarette pack sealing machine according to claim 3, characterized in that: Guide plates (221) are provided on both sides of the first guide rail (22). The guide plates (221) on both sides of the first guide rail (22) are configured such that the distance between them gradually decreases from the direction of the first conveyor belt (21) to the direction of the qualified cigarette lifting device (5). The distance closer to the direction of the first conveyor belt (21) is set to be greater than the length of the cigarette, so as to ensure that there is enough space to receive the fallen cigarette and avoid the cigarette from being squeezed or damaged when it falls onto the guide plate (221). The distance closer to the direction of the qualified cigarette lifting device (5) gradually decreases to match the length of the cigarette. When the push plate pushes the cigarette, the distance between the guide plates (221) is gradually reduced to guide the cigarette to enter the qualified cigarette lifting device (5) accurately and neatly.

5. The rejection device for the cigarette pack sealing machine according to claim 4, characterized in that: The qualified cigarette lifting device (5) includes: qualified cigarette lifting push device (5), lifting bracket (52), lifting limit block (521), sealing plate (522), and third push cylinder (523); The qualified cigarette pack lifting and pushing component (51) is used to push the qualified cigarette pack into the lifting bracket (52). The newly lifted qualified cigarette pack pushes the previously lifted qualified cigarette pack to the upper layer, and the qualified cigarette packs form a layer-by-layer pushing from bottom to top. The lifting bracket (52) is fixedly connected to the third conveyor belt (25) and suspended above the first guide rail (22). The size of the lifting bracket (52) is set to match the length and width of the qualified cigarette packs, providing temporary storage space for the qualified cigarette packs. The lifting limit block (521) is installed inside the lifting bracket (52) and is connected to the lifting bracket (52) by a hinge, so that it can rotate flexibly and provide support for qualified cigarette packs; The sealing plate (522) is installed on top of the lifting bracket (52); The third push cylinder (523) is installed above the lifting bracket (52). A push plate is provided on the third push cylinder (523). The push plate is driven by the third push cylinder (523) to push the qualified cigarette packs from the lifting bracket (52) to the third conveyor belt (25).

6. The rejection device for the cigarette pack sealing machine according to claim 5, characterized in that: The qualified cigarette pack lifting and pushing component (51) is a lifting cylinder (511). The lifting cylinder (511) is installed between the first guide rail (22) and the second conveyor belt (23). A push plate is installed on the lifting cylinder (511) to provide support for the qualified cigarette packs that need to be lifted. The push plate is pushed by its extension and retraction to push the qualified cigarette packs into the lifting bracket (52). When the lifting cylinder (511) extends upward and pushes the qualified cigarette packs into the lifting bracket (52) and contacts the lifting limit block (521), the upward thrust causes the lifting limit block (521) to rotate upward along the preset path, making way for the qualified cigarette packs until the qualified cigarette packs reach the predetermined position. When the lifting cylinder (511) retracts, the lifting limit block (521) rotates downward to support the qualified cigarette packs. Alternatively, the qualified cigarette pack lifting and pushing component (51) is a toothed belt lifting mechanism, which includes: an actuating belt (512), a rotating shaft (515), a protrusion (514), and a servo motor; There are 4 rotating shafts (515); 2 are installed on each side of the lifting bracket (52), and 2 are installed on each side between the first guide rail (22) and the second conveyor belt (23). The rotating shafts (515) between the lifting bracket (52) and the first guide rail (22) and the second conveyor belt (23) are connected by the actuator belt (512). Multiple protrusions (514) are provided and installed on the outside of the execution belt (512); the spacing between vertically adjacent protrusions (514) is set to match the thickness of qualified cigarette strips, providing support for qualified cigarette strips that need to be lifted; When the servo motor is started, the rotating shaft (515) rotates, driving the execution belt (512) and the protrusion (514) to rotate synchronously. The protrusion (514) lifts the qualified cigarette pack into the lifting bracket (52). The upward thrust drives the lifting limit block (521) to flip upward along the preset path, making way for the qualified cigarette pack until the qualified cigarette pack reaches the predetermined position. The rotating shaft (515) continues to rotate. After the protrusion (514) rises to the highest point, it leaves the lifting bracket (52) and the qualified cigarette pack. The lifting limit block (521) rotates downward to support the qualified cigarette pack. Alternatively, the qualified cigarette lifting and pushing component (51) is a qualified cigarette swastika lifting mechanism (513), which is installed between the first guide rail (22) and the second conveyor belt (23), and includes: a qualified cigarette drive motor, a qualified cigarette lifting swastika (5131), and a qualified cigarette drive shaft (5132). When the qualified cigarette drive motor is started, the qualified cigarette drive shaft (5132) rotates, driving the qualified cigarette lifting swastika (5131) to rotate synchronously, lifting the qualified cigarette into the lifting bracket (52). The qualified cigarette lifting swastika (5131) provides support for the qualified cigarette. The qualified cigarette drive shaft (5132) rotates again, and the qualified cigarette at the top of the qualified cigarette lifting swastika (5131) is lifted one position. The upward thrust drives the lifting limit block (521) to flip upward along the preset path, making way for the qualified cigarette until the qualified cigarette reaches the predetermined position. The lifting limit block (521) rotates downward to support the qualified cigarette.

7. The rejection device for cigarette pack sealing machine according to claim 6, characterized in that: A second push cylinder (8) is installed below the second conveyor belt (23). A push plate is provided on the second push cylinder (8). The push plate is driven by the second push cylinder (8) to push the qualified cigarette strips that fall from the second conveyor belt (23) onto the second guide rail (24) into the rejection collection and warning device (7).

8. The rejection device for cigarette pack sealing machine according to claim 7, characterized in that: The rejection collection and early warning device (7) includes: a collection and stacking storage rack (71) and a non-conforming cigarette stacking and pushing mechanism (72). The collection stacking storage rack (71) is installed above the second guide rail (24) for collecting non-conforming cigarette packs; the collection stacking storage rack (71) is equipped with multiple workstations to provide more storage space for non-conforming cigarette packs. The size of each workstation is matched with the cigarette packs. Each non-conforming cigarette pack is stored in an independent workstation. The non-conforming cigarette packs are pushed into the first workstation in sequence by the second push cylinder (8). The collection and stacking storage rack (71) is provided with a stacking limit block (711), which is connected to the collection and stacking storage rack (71) via a hinge; The non-conforming cigarette pack stacking push mechanism (72) is used to push non-conforming cigarette packs into the collection stacking storage rack (71).

9. The rejection device for a cigarette pack sealing machine according to claim 8, characterized in that: The unqualified cigarette stacking pushing mechanism (72) is an unqualified cigarette collection swastika lifting mechanism (721), which is set on the corresponding work station; it includes: cigarette collection drive motor, cigarette collection lifting swastika tooth block (7211), and cigarette collection drive shaft (7212). When the cigarette collection drive motor is started, the cigarette collection drive shaft (7212) rotates, driving the cigarette collection lifting swastika tooth block (7211) to rotate synchronously, lifting the unqualified cigarettes into the collection stacking storage rack (71). The cigarette collection lifting swastika tooth block (7211) provides support for the unqualified cigarettes. The cigarette collection drive shaft (7212) rotates again, lifting the unqualified cigarettes one station. At the same time, the upward thrust drives the stacking limit block (711) to flip upward along the preset path, making way for the unqualified cigarettes until they reach the predetermined position. The stacking limit block (711) then rotates downward to support the unqualified cigarettes. Alternatively, the non-conforming cigarette stacking pushing mechanism (72) is a cigarette collection pushing cylinder (722); a push plate is installed on the cigarette collection pushing cylinder (722) to provide support for the non-conforming cigarettes that need to be lifted; the non-conforming cigarettes are pushed into the collection stacking storage rack (71) by its extension and retraction action; When the cigarette collection push cylinder (722) extends upward to push the defective cigarettes into the collection stack storage rack (71) and contact the cigarette collection limiting block (7222), the upward thrust causes the cigarette collection limiting block (7222) to flip upward along the preset path, making way for the defective cigarettes until they reach the predetermined position; when the cigarette collection push cylinder (7222) retracts, the cigarette collection limiting block (7222) rotates downward to hold the defective cigarettes.

10. The rejection device for a cigarette pack sealing machine according to any one of claims 1-9, characterized in that: It also includes a sensing unit (3), which includes: a first proximity switch (31), a second proximity switch (32), a third proximity switch (33), a fourth proximity switch (34), and a fifth proximity switch (35); The first proximity switch (31) is installed on the guide plate (221) of the first guide rail (22) to sense the cigarettes that fall from the first conveyor belt (21) onto the first guide rail (22). When the cigarettes reach the sensing area, the first proximity switch (31) is triggered, and the signal is transmitted to the electromagnetic reversing valve to start the first push cylinder (6) to perform telescopic movement and push the cigarettes out of the sensing area of ​​the first proximity switch (31). The second proximity switch (32) is installed on the guide plate (221) at the corresponding position of the qualified cigarette lifting device (5) to sense the arrival of the cigarette and activate the qualified cigarette lifting push component (51) to realize the automatic lifting of the qualified cigarette. The third proximity switch (33) is installed on the sealing plate (522) of the lifting bracket (52) to monitor the full state of qualified cigarette packs in the lifting bracket (52). When the qualified cigarette packs in the lifting bracket (52) reach the preset quantity or height, the third proximity switch (33) is triggered and a signal is sent to the electromagnetic reversing valve to start the third push cylinder (523) to perform telescopic movement, pushing the qualified cigarette packs in the lifting bracket (52) to the third conveyor belt (25). The fourth proximity switch (34) is installed on the second guide rail (24) to sense the defective cigarettes that fall from the second conveyor belt (23) onto the second guide rail (24). When the defective cigarettes reach the sensing area, the fourth proximity switch (34) is triggered, and the signal is transmitted to the electromagnetic reversing valve to start the second push cylinder (8) to perform telescopic movement and push the defective cigarettes into the rejection collection early warning device (7). The fifth proximity switch (35) is installed on the second guide rail (24) and is located near the last station. When the defective cigarette packs are pushed into the last station, the fifth proximity switch (35) is triggered, and the cigarette pack stacking pushing mechanism (72) is activated to lift the defective cigarette packs on the station into the collection stacking storage rack (71).

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