Carton sealing machine removing and lifting device

Abstract

The utility model relates to the technical field of cigarette manufacturing, in particular to a case sealer removing and lifting device which comprises a first guide rail and a third conveying belt. One end of the third conveying belt is connected with a lifting support, and a temporary storage space is provided for qualified cigarette cartons. The other end of the conveying mechanism is connected with the cigarette carton boxing mechanism and used for conveying qualified cigarette cartons into a boxing process; the first guide rail is provided with a qualified cigarette lifting and pushing component used for pushing qualified cigarettes into the lifting support. A lifting limiting block is arranged in the lifting support and provides support for qualified cigarette cartons. A third pushing air cylinder is installed on the lifting support, qualified cigarette cartons are pushed to a third conveying belt from the interior of the lifting support to enter the boxing process, and it is guaranteed that the cigarette cartons in the lifting support cannot be excessively stacked through the automatic monitoring and signal triggering functions; according to the utility model, the efficient transfer of the cigarette carton from a temporary storage state to a boxing process is realized, the manual operation links are reduced, and the human cost and the influence of human factors on the production process are reduced.

Description

Technical Field

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

[0002] In the tobacco product manufacturing process, cigarette packing machines are one of the key pieces of equipment. Currently, imaging detectors and other inspection equipment are used in tobacco production to inspect the appearance of cigarette packs. However, the automation level in the subsequent transport and sorting stages remains problematic. After the imaging detectors determine whether the cigarette packs are qualified or not, there is a lack of effective automated equipment to accurately and quickly sort qualified and unqualified packs. Relying on traditional flat belt conveyors for sorting operations, the lack of effective automated sorting equipment and precise control mechanisms during the conveyor process easily leads to disordered accumulation of cigarette packs. This disordered accumulation not only results in a chaotic distribution of cigarette packs on the conveyor belt but also greatly increases the complexity and difficulty of subsequent sorting. Operators need to spend a significant amount of time and effort distinguishing qualified and unqualified products from the chaotic piles, increasing their workload and severely impacting production efficiency. The disorderly accumulation also causes mutual squeezing and collisions between cigarette packs, increasing the risk of damage to the appearance of the cigarettes, thus affecting the overall quality of the product and potentially leading to an increased defect rate and unnecessary economic losses.

[0003] In addition, during manual sorting, sorting errors are prone to occur due to human factors, resulting in substandard cigarette packs being mixed with qualified products, which affects product quality.

[0004] To address the problems existing in the current technology, it is necessary to develop a new type of rejection and lifting device for carton sealing machines. In order to improve production efficiency, reduce costs, and ensure product quality, it is urgent to improve the existing cigarette pack conveying and sorting process and develop and apply more efficient and accurate automated sorting equipment to achieve a fully automated process from cigarette pack detection to sorting. Summary of the Invention

[0005] To address the shortcomings of the existing technology, this utility model provides a packing machine rejection and lifting device. By setting 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 are pushed to the packing process through the coordinated operation of a qualified cigarette pack lifting and pushing component, a lifting bracket, and a third pushing cylinder.

[0006] Specifically, this utility model provides a rejection and lifting device for a carton sealing machine, comprising: a first guide rail and a third conveyor belt; one end of the third conveyor belt is connected to a lifting bracket to provide temporary storage space for qualified cigarette packs; the other end is connected to a cigarette packing mechanism for conveying qualified cigarette packs to the packing process; the first guide rail is provided with a qualified cigarette pack lifting and pushing component for pushing the qualified cigarette packs into the lifting bracket; the lifting bracket is provided with a lifting limit block to provide support for the qualified cigarette packs; a third pushing cylinder is installed on the lifting bracket to push the qualified cigarette packs from inside the lifting bracket onto the third conveyor belt.

[0007] Furthermore, 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.

[0008] Furthermore, the lifting limit block is disposed inside the lifting bracket and is connected to the lifting bracket by a hinge, allowing it to rotate flexibly, providing support for the qualified cigarette packs and preventing them from slipping off.

[0009] Furthermore, a sealing plate is installed on the top of the lifting bracket to prevent qualified cigarette packs from accidentally falling from the top of the lifting bracket.

[0010] 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 is set to be greater than the length of the cigarette pack in the direction of entry, to ensure that there is enough space to receive the cigarette packs falling from upstream, and to avoid squeezing or damage when the cigarette packs fall onto the guide plates. The spacing near the qualified cigarette pack lifting and pushing component gradually decreases to match the length of the cigarette pack. When the upstream pushing component pushes the cigarette pack, by gradually reducing the spacing of the guide plates, the cigarette packs are guided to accurately and neatly enter the qualified cigarette pack lifting and pushing component along the first guide rail.

[0011] Furthermore, it also includes a second proximity switch and a third proximity switch; the second proximity switch is installed on the guide plate at the corresponding position of the qualified cigarette pack lifting device, and is used to sense the arrival of qualified cigarette packs, activate the qualified cigarette pack lifting and pushing component, and realize the automatic lifting of qualified cigarette packs; the third proximity switch is installed on the sealing plate of the lifting bracket, and is used to monitor the full state 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 at the same time, a signal is sent to the electromagnetic reversing valve to start the third pushing cylinder to perform telescopic movement, pushing the qualified cigarette packs from the lifting bracket to the third conveyor belt.

[0012] Furthermore, it also includes a second conveyor belt, which is connected to the first guide rail via a rotating shaft, for conveying substandard cigarette packs.

[0013] 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.

[0014] Furthermore, the qualified cigarette pack lifting and pushing component is a toothed belt lifting mechanism, which includes: an execution belt, a rotating shaft, protrusions, and a servo motor; four rotating shafts are provided; two are installed on each side of the lifting bracket, and two are installed on each side between the first guide rail and the second conveyor belt; the rotating shaft between the lifting bracket and the first guide rail and the second conveyor belt is connected by the execution belt; 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 the qualified cigarette pack, providing support for the qualified cigarette pack to be lifted; when the servo motor is started, the rotating shaft rotates, driving the execution belt and protrusions to rotate synchronously, and the protrusions lift the qualified cigarette pack into the lifting bracket; the upward thrust drives the lifting limit block 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 continues to rotate, the protrusions rise to the highest point and leave the lifting bracket and the qualified cigarette pack, and the lifting limit block rotates downward to support the qualified cigarette pack.

[0015] Furthermore, 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. It includes: a qualified cigarette pack drive motor, a qualified cigarette pack lifting swastika, and a qualified cigarette pack drive shaft. When the qualified cigarette pack drive motor is started, the qualified cigarette pack drive shaft rotates, driving the qualified cigarette pack lifting swastika to rotate synchronously, lifting the cigarette pack into the lifting bracket. The qualified cigarette pack lifting swastika provides support for the qualified cigarette pack. When the qualified cigarette pack drive shaft rotates again, 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.

[0016] Working principle:

[0017] When the cigarette packing machine's cigarette rejection device is working, the cigarette packs are first conveyed from the upstream equipment to the first conveyor belt 21, and then enter the appearance inspection area of ​​the imaging detector 1. The imaging detector 1 performs a comprehensive inspection of the appearance of the cigarette packs to identify any appearance defects. Based on the inspection results of the imaging detector 1, the cigarette packs are sorted into qualified and unqualified cigarette packs, forming two different conveying modes:

[0018] 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.

[0019] 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 pack reaches the end of the second conveyor belt 23, the defective cigarette pack falls onto the second guide rail 24 by its own weight, triggering the fourth proximity switch 34, which sends a signal to the electromagnetic reversing valve, activating the second push cylinder 8 to extend and retract, pushing the defective cigarette pack to the cigarette pack station in the rejection collection and early warning device 7. Beneficial effects

[0020] This invention uses a lifting bracket suspended above the first guide rail. Its size matches the length and width of the cigarette packs, providing a suitable temporary storage space for qualified cigarette packs. This ensures that the cigarette packs can be stored in an orderly manner before entering the packing process, avoiding disorderly stacking that affects subsequent packing efficiency.

[0021] This invention improves sorting efficiency by setting a qualified cigarette pack lifting and pushing component on the first guide rail, which accurately pushes qualified cigarette packs into the lifting bracket, enabling more qualified cigarette packs to be processed per unit time.

[0022] This utility model uses a lifting limit block connected to a lifting bracket via a hinge, allowing for flexible rotation. This provides stable support for the cigarette packs, preventing them from slipping, and also allows for smooth upward rotation to clear a path for the cigarette packs when the qualified cigarette pack lifting and pushing components are working. This ensures the smoothness of the cigarette pack lifting process and improves the accuracy and stability of sorting.

[0023] This invention uses a third push cylinder to push qualified cigarette packs temporarily stored in the lifting bracket to the third conveyor belt, achieving efficient transfer of cigarette packs from the temporary storage state to the packing process, reducing manual operation steps, and lowering labor costs and the impact of human factors on the production process.

[0024] This invention ensures that the cigarette packs inside the lifting bracket do not accumulate excessively by setting a third proximity switch, and controls the third push cylinder to accurately push out qualified cigarette packs through automatic monitoring and signal triggering functions.

[0025] This utility model's qualified cigarette pack lifting and pushing component utilizes lifting cylinders, toothed belt lifting mechanisms, or qualified cigarette pack swastika lifting mechanisms, all possessing precise and efficient pushing capabilities. Upon detecting qualified cigarette packs, the lifting and pushing component responds quickly and activates, automatically pushing the cigarette packs to the lifting support without manual intervention. This automated sorting method not only improves production efficiency but also reduces the uncertainty and fatigue errors caused by manual operation, ensuring the stability and reliability of the sorting process and making the entire tobacco production process smoother and more efficient. Attached Figure Description

[0026] Figure 1 A schematic diagram showing the working status of the box sealing machine's rejection and lifting device;

[0027] Figure 2 Schematic diagram showing the location of the rejection lifting device for the carton sealing machine;

[0028] Figure 3 A schematic diagram showing the connection between the imaging detector and the conveying unit of the carton sealing machine's rejection lifting device;

[0029] Figure 4 A schematic diagram of the structure of the lifting and pushing component for the qualified cigarette packs in Example 1 of the packing machine's rejection and lifting device;

[0030] Figure 5 A schematic diagram of the structure of the lifting and pushing component for the qualified cigarette packs in Example 2 of the carton sealing machine's rejection and lifting device;

[0031] Figure 6 A schematic diagram of the structure of the lifting and pushing component for the qualified cigarette packs in Example 3 of the carton sealing machine's rejection and lifting device;

[0032] Figure 7 A schematic diagram showing the connection between the lifting bracket of the carton sealing machine's ejection lifting device and the third conveyor belt;

[0033] Figure 8 A side view of the component that lifts the qualified cigarette pack;

[0034] Figure 9 for Figure 8 Schematic diagram of surface AA;

[0035] Figure 10 Schematic diagram of the installation of the lifting bracket and lifting limit block for the box sealing machine's removal lifting device;

[0036] Figure 11 A schematic diagram of the drive shaft rotation for the qualified cigarette packs in Example 3 of the carton sealing machine's rejection and lifting device;

[0037] Figure 12 A schematic diagram of the structure of the lifting and pushing component for the qualified cigarette packs in Example 3 of the carton sealing machine's rejection and lifting device;

[0038] The diagram is labeled as follows: 1—Imaging detector, 4—Induction warning device, 6—First push cylinder, 8—Second push cylinder, 9—Smoke bar;

[0039] 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;

[0040] 3—Sensing unit: 31—First proximity switch, 32—Second proximity switch, 33—Third proximity switch, 34—Fourth proximity switch, 35—Fifth proximity switch;

[0041] 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;

[0042] 7—Rejection collection and early warning device; 71—Collection stacking and storage rack; 72—Defective cigarette pack stacking and pushing mechanism; Detailed Implementation Example 1

[0043] like Figure 1 As shown, a cigarette packing machine's cigarette rejection device 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, a third proximity switch 33, and a fifth proximity switch 35. The qualified cigarette pack lifting device 5 includes: a qualified cigarette pack lifting and pushing component 51, a lifting cylinder 511, a lifting bracket 52, a lifting limit block 521, a sealing plate 522, and a third pushing cylinder 523. The rejection collection early warning device 7 includes: a collection and stacking storage rack 71 and a non-qualified cigarette pack stacking and pushing mechanism 72.

[0044] like Figure 3As shown, the imaging detector 1 is mounted on the first conveyor belt 21 for inspecting the appearance of the cigarette packs; 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 pack lifting device 5 through the rotating shaft 231, and unqualified cigarette packs will be pushed to the second conveyor belt 23; the third conveyor belt 25 is connected to the qualified cigarette pack lifting device 5 and is used to convey qualified cigarette packs.

[0045] like Figure 4 As 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.

[0046] 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.

[0047] like Figure 4 , 8As shown in Figure -10, 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 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.

[0048] like Figure 2 As shown, 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.

[0049] 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.

[0050] like Figure 1As shown, when the qualified cigarette packing machine's cigarette rejection device is working, firstly, the cigarette packs 9 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 9 to identify whether there are various appearance defects in the cigarette packs 9. Based on the inspection results of the imaging detector 1, the cigarette packs 9 are 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;

[0051] 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 pack reaches the end of the second conveyor belt 23, the defective cigarette pack falls onto the second guide rail 24 by its own weight, triggering the fourth proximity switch 34, which sends a signal to the electromagnetic reversing valve, activating the second push cylinder 8 to extend and retract, pushing the defective cigarette pack to the cigarette pack station in the rejection collection and early warning device 7. Example 2

[0052] like Figure 5 As 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;

[0053] 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

[0054] like Figure 6 , 11As shown in Figures 1 and 12, 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.

[0055] 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.

[0056] 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 box sealing machine rejection and lifting device, characterized in that, include: First guide rail (22), third conveyor belt (25); The third conveyor belt (25) is connected to a lifting bracket (52) at one end, which provides a temporary storage space for qualified cigarette packs; the other end is connected to a cigarette packing mechanism, which is used to transport qualified cigarette packs to the packing process. The first guide rail (22) is provided with a qualified cigarette pack lifting and pushing component (51) for pushing qualified cigarette packs into the lifting bracket (52); The lifting bracket (52) is provided with a lifting limit block (521) to provide support for qualified cigarette packs; A third push cylinder (523) is installed on the lifting bracket (52) to push qualified cigarette packs from the lifting bracket (52) to the third conveyor belt (25).

2. The carton sealing machine rejection and lifting device according to claim 1, characterized in that: 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.

3. The carton sealing machine rejection and lifting device according to claim 2, characterized in that: 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.

4. The carton sealing machine rejection and lifting device according to claim 3, characterized in that: The top of the lifting bracket (52) is equipped with a sealing plate (522) to prevent qualified cigarette packs from accidentally falling from the top of the lifting bracket (52).

5. The carton sealing machine rejection and lifting device according to claim 1, 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 set such that the spacing between them in the direction of cigarette entry is greater than the length of the cigarette, so as to ensure that there is enough space to receive the cigarettes falling from the upstream and to avoid the cigarettes falling onto the guide plates (221) and causing squeezing or damage. The spacing between them in the direction of the qualified cigarette lifting and pushing component (51) is gradually reduced to match the length of the cigarette. When the upstream pushing component pushes the cigarette, the spacing between the guide plates (221) is gradually reduced to guide the cigarettes to enter the qualified cigarette lifting and pushing component (51) accurately and neatly along the first guide rail (22).

6. The carton sealing machine rejection and lifting device according to claim 5, characterized in that: It also includes a second proximity switch (32) and a third proximity switch (33); 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 qualified 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).

7. The carton sealing machine rejection and lifting device according to claim 5, characterized in that: It also includes a second conveyor belt (23), which is connected to the first guide rail (22) via a rotating shaft (231) for conveying substandard cigarette packs.

8. The carton sealing machine rejection and lifting device according to claim 6, 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 when the qualified cigarette pack is lifted. The push plate is pushed by its extension and retraction to push the qualified cigarette pack into the lifting bracket (52). When the lifting cylinder (511) extends upward and pushes the cigarette pack into the lifting bracket (52) and 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 pack until the qualified cigarette pack reaches the predetermined position. When the lifting cylinder (511) retracts, the lifting limit block (521) rotates downward to support the qualified cigarette pack.

9. The carton sealing machine rejection and lifting device according to claim 6, characterized in that: The qualified cigarette pack lifting and pushing component (51) is a toothed belt lifting mechanism, which includes: 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 through 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... The setting is matched with the thickness of the qualified cigarette pack to provide support for the qualified cigarette pack that needs 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, and the protrusion (514) rises to the highest point and leaves the lifting bracket (52) and the qualified cigarette pack. The lifting limit block (521) rotates downward to support the qualified cigarette pack.

10. The carton sealing machine rejection and lifting device according to claim 6, characterized in that: 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). It includes: qualified cigarette drive motor, qualified cigarette lifting swastika (5131), and qualified cigarette drive shaft (5132). 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 qualified 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 qualified 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 qualified cigarette pack until the qualified cigarette pack reaches the predetermined position. The lifting limit block (521) rotates downward to support the qualified cigarette pack.

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