A carton packing apparatus for cigarettes in tobacco logistics

Abstract

The application discloses a kind of cigarette packing equipment for tobacco logistics, it includes frame, film guide mechanism, pressure sending mechanism, upper cutter assembly, lower cutter assembly, output table and film roll roller, frame is equipped with cigarette stay space, film roll roller is arranged in the both sides of cigarette stay space, the packaging film of film roll on the both sides of film roll roller will be connected together and span from the top of cigarette stay space, film guide mechanism can lift and lower packaging film, output table is arranged in the side of cigarette stay space, pressure sending mechanism is used to send the cigarette in cigarette stay space with packaging film to the side to output table, upper cutter assembly is arranged on pressure sending mechanism, lower cutter assembly is arranged in the input end of output table, when pressure sending mechanism completes and pushes the cigarette to output table, upper cutter assembly will be aligned with lower cutter assembly, and the fusion and cutting of packaging film are realized by upper cutter assembly and lower cutter assembly.The application can pack the cigarette more compactly.

Description

Technical Field

[0001] This invention relates to the field of packing technology for cigarettes in tobacco logistics, and specifically to a packing device for cigarettes in tobacco logistics. Background Technology

[0002] When cigarettes are manufactured, multiple cartons need to be packaged together for easy logistics and distribution, such as delivering bulk cartons of cigarettes from the factory to retail outlets like convenience stores. Several existing technologies exist for wrapping cigarette cartons: the first method uses heat-shrinkable PE film to wrap the cigarette cartons; the second method uses a wrapping machine to wrap the cigarette cartons in film rolls to form stacks for easy transport (e.g., patent 2017205232023 discloses a film roll packaging machine for cold packaging of cigarette cartons); the third method uses sealing and cutting packaging equipment to wrap the cigarette cartons by sealing and cutting.

[0003] Among the equipment related to the third packaging method mentioned above, Chinese Patent Application No. 2018109815769 discloses a sealing and cutting packaging machine for cold packaging of cigarette cartons, and Chinese Patent Application No. 2020107010349 discloses a sealing and cutting device for packaging cigarette cartons. Both effectively package cigarette cartons using packaging film. However, in actual use, the inventors found that the packaging was still not tight enough, mainly manifested in: the packaging film could not be stretched taut; when pushing out the cigarette cartons, the inertia caused the packaging film to loosen; and the sealing position of the packaging film could not be close to the cigarette cartons. Therefore, the inventors designed a new packaging device for cigarette cartons in tobacco logistics. By redesigning the packaging process and related devices, the packaging of cigarette cartons is made more secure, thereby improving packaging quality. Summary of the Invention

[0004] The purpose of this invention is to provide a packing device for cigarette cartons in tobacco logistics, which can pack cigarette cartons more tightly.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] A packing device for cigarettes in tobacco logistics, characterized in that it includes a frame, a film guiding mechanism, a pressing mechanism, an upper knife assembly, a lower knife assembly, an output platform, and film-laying rollers. The frame has a cigarette-holding space, and film-laying rollers are respectively arranged on both sides of the cigarette-holding space. In use, the film rolls are installed on the film-laying rollers on both sides, and the packaging film of the film rolls on both sides is connected together and crosses over the cigarette-holding space. The film guiding mechanism can lift and lower the packaging film that crosses over the cigarette-holding space. The output platform is located on one side of the cigarette-holding space. The pressing mechanism is used to push the cigarettes wrapped in packaging film in the cigarette-holding space to one side onto the output platform and apply pressure to the cigarettes during the pushing process. The upper knife assembly is arranged on the pressing mechanism, and the lower knife assembly is arranged at the input end of the output platform. When the pressing mechanism finishes pushing the cigarettes to the output platform, the upper knife assembly and the lower knife assembly are aligned vertically. At this time, the upper and lower closing of the upper and lower knife assemblies realizes the welding and cutting of the packaging film.

[0007] A further technical solution of the present invention is: a pressing plate that can slide up and down is provided on the pressing mechanism. When the pressing mechanism pushes the cigarette pack, the pressing plate will press down on the cigarette pack by its own weight.

[0008] A further technical solution of the present invention is as follows: the pressing mechanism is further provided with a translation component, a first lifting component and a push plate. The translation component is located above the cigarette holding space. The first lifting component is located on the translation frame of the translation component. The push plate is vertically fixedly installed on the first lifting frame of the first lifting component. The first lifting frame is provided with a first limiting plate. The cigarette pressing plate is slidably connected to the translation frame and is horizontally located above the space in front of the push plate. A second limiting plate is fixedly connected to the cigarette pressing plate. The second limiting plate is directly above the first limiting plate. The upper knife component is installed below the first lifting frame.

[0009] A further technical solution of the present invention is as follows: a counterweight film passing assembly is provided on both sides of the cigarette holding space. The counterweight film passing assembly is provided with a limiting frame and a counterweight rod. The counterweight rod is provided on the limiting frame and can move freely up and down on the limiting frame. When in use, the packaging film of the film rolls on both sides will pass under the counterweight rod respectively, and the counterweight rod will apply its own weight to the packaging film.

[0010] A further technical solution of the present invention is as follows: the limiting frame is provided with two vertically oriented elongated limiting holes at the front and rear, and the two ends of the counterweight rod are respectively fitted into the elongated limiting holes.

[0011] A further technical solution of the present invention is as follows: a film guiding mechanism is provided on both sides of the cigarette holding space. The film guiding mechanism includes a second lifting component, an upper guide roller and a lower guide roller. The upper guide roller and the lower guide roller are respectively located on the upper side and the lower side of the second lifting frame of the second lifting component. When in use, the packaging film will pass under the lower guide roller and pass over the upper guide roller.

[0012] A further technical solution of the present invention is as follows: the upper blade assembly includes an upper blade holder and two upper pressure strips fixed side by side below the upper blade holder; the lower blade assembly includes two lower blade holders arranged side by side, a heating wire disposed on the lower blade holder, a Teflon film covering the heating wire, a cutter disposed between the two lower blade holders, and a third lifting assembly. The cutter is driven to rise by the third lifting assembly and cuts the packaging film between the two lower blade holders. When the upper blade assembly and the lower blade assembly are closed vertically, the upper pressure strips will press onto the lower blade holders accordingly, and at the same time, the heating of the heating wire will fuse the upper and lower packaging films together.

[0013] A further technical solution of the present invention is as follows: an upper heating tube is provided in the upper blade holder, and a lower heating tube is provided in the lower blade holder. The upper and lower heating tubes ensure that the upper and lower blade holders are always maintained at a set temperature to achieve a heat tracing effect and eliminate the influence of external temperature changes on the bonding effect. (For example, if the bonding temperature is 110 degrees Celsius, assuming no heat tracing is provided, since the heating wire achieves the welding of the packaging film through instantaneous heating, it will reach or approach the external temperature during the period when the heating wire is not heating. Thus, the length of time without heating will directly affect the welding effect of the heating wire during the timed heating period. Therefore, heat tracing is provided, and the heat tracing temperature is generally set between 50-60 degrees Celsius, which will not burn the packaging film and will not be affected by the external temperature.)

[0014] A further technical solution of the present invention is as follows: a groove is provided on the upper part of the lower cutter holder, the heating wire is embedded in the groove, and tensioning components are provided at both ends of the lower cutter holder. The tensioning components are connected to the ends of the heating wire, and the tensioning components always keep the heating wire taut.

[0015] A further technical solution of the present invention is as follows: the packaging equipment for cigarette packs also includes a conveyor, one end of which is located in the cigarette pack dwelling space. The conveyor belt of the conveyor is provided with a partition plate, which divides the space on the conveyor belt into multiple cigarette pack stacking positions. The cigarette packs stacked in the cigarette pack stacking positions will be conveyed to the cigarette pack dwelling space for packaging.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. First, the film guiding mechanism of this invention wraps the packaging film around the packaged cigarettes by lifting and lowering it, resulting in a tighter wrapping. Then, the pressing and conveying mechanism pushes the packaged cigarettes wrapped in the packaging film towards the side output platform. During this pushing process, the packaging film is pulled, further tightening it. The upper blade assembly on the pressing and conveying mechanism follows behind the packaged cigarettes, maintaining a closer distance, thus ensuring the sealing position of the packaging film is closer to the packaged cigarettes, keeping the packaging film tightly wrapped around them. Therefore, this invention achieves a tighter packaging of cigarettes in cartons.

[0018] 2. The present invention further includes a cigarette pressing plate. When the pressing mechanism pushes the cigarette packs, the cigarette pressing plate will press down on the cigarette packs by its own weight to apply a certain vertical clamping force on the packaged cigarette packs. This can better prevent the cigarette packs from becoming loose due to inertia and rushing forward during the pushing process.

[0019] 3. The present invention further includes a counterweight film-coating assembly, which uses the gravity of the counterweight rod to maintain a certain tension in the packaging film on both sides, thereby achieving a more compact packaging of the cigarette packs. Attached Figure Description

[0020] Figure 1 This is one of the perspective schematic diagrams of the cigarette packing equipment according to an embodiment of the present invention;

[0021] Figure 2 This is a second perspective view of the cigarette packing equipment according to an embodiment of the present invention;

[0022] Figure 3 This is a front view schematic diagram of the cigarette packing equipment according to an embodiment of the present invention;

[0023] Figure 4 yes Figure 3 Schematic diagram of the cross section at point AA;

[0024] Figure 5 This is a three-dimensional schematic diagram of the cigarette packing equipment of this invention with the conveyor hidden behind it;

[0025] Figure 6 This is a three-dimensional schematic diagram of the guiding film mechanism according to an embodiment of the present invention;

[0026] Figure 7 This is a three-dimensional schematic diagram of the counterweight membrane assembly according to an embodiment of the present invention;

[0027] Figure 8 This is one of the perspective schematic diagrams of the pressing and feeding mechanism according to an embodiment of the present invention;

[0028] Figure 9 This is a second perspective view of the pressing and feeding mechanism according to an embodiment of the present invention;

[0029] Figure 10 This is a perspective view of the cutting component according to an embodiment of the present invention;

[0030] Figure 11 This is a three-dimensional schematic diagram of the end caps at both ends of the lower blade assembly in an embodiment of the present invention when they are open;

[0031] Figure 12 This is a cross-sectional schematic diagram of the cutting component according to an embodiment of the present invention;

[0032] Figure 13 This is a schematic diagram of the structure of the tensioning component connection at one end of the lower blade assembly according to an embodiment of the present invention;

[0033] Figure 14 This is a front view schematic diagram of the tensioning component according to an embodiment of the present invention;

[0034] Figure 15 This is one of the structural schematic diagrams of the packing equipment for cigarettes in this invention during the packing process;

[0035] Figure 16 This is the second schematic diagram of the packaging equipment for cigarette packs according to an embodiment of the present invention during the packaging process.

[0036] Figure 17 This is the third schematic diagram of the packaging equipment for cigarette packs according to an embodiment of the present invention during the packaging process.

[0037] Figure 18 This is the fourth structural schematic diagram of the packing equipment for cigarettes in this embodiment of the invention during the packing process.

[0038] Meaning of the labels in the attached diagram:

[0039] 1-Conveyor; 1.1-Separator; 1.2-Cigarette stacking position; 2-Output platform; 3-Transfer assembly; 3.1-Transfer frame; 3.2-Horizontal slider; 3.3-Horizontal guide rail; 3.4-Transfer motor; 3.5-Drive belt; 3.6-Sprocket; 3.7-Drive shaft; 3.8-Mounting plate; 4-Smoke pressing plate; 4.1-Guide rod; 4.2-Second limit plate; 5-Push plate; 6-First lifting assembly; 6 6.1-First lifting frame; 6.2-First limiting plate; 6.3-Vertical guide rail; 6.4-Rack; 6.5-Transmission gear; 6.6-Lifting motor; 6.7-Vertical slider; 7-Film roll; 7.1-Packaging film; 8-Film feeding roller; 9-Frame; 10-Counterweight film feeding assembly; 10.1-Counterweight rod; 10.2-Fixed guide roller; 10.3-Limiting frame; 10.4-Long strip limiting hole; 11-Film guiding machine Structure; 11.1-Second lifting cylinder; 11.2-Second lifting frame; 11.3-Upper guide roller; 11.4-Lower guide roller; 12-Cigarette holder space; 13-Lower cutter assembly; 13.1-Third lifting cylinder; 13.2-Teflon film; 13.3-Lower cutter holder; 13.4-Cutter mounting groove; 13.5-End cap; 13.6-Mounting platform; 13.7-Pull ring; 13.8-Heating wire; 13. 9-Lower heating element; 13.10-Cutter; 13.11-Groove; 14-Upper blade assembly; 14.1-Upper blade holder; 14.2-Upper pressure strip; 14.3-Cutting groove; 14.4-Clamping block; 14.5-Upper heating element; 14.6-Side guard; 15-Tensioning assembly; 15.1-Pull plate; 15.2-Fixing base; 15.3-Hook; 15.4-Pin; 15.5-Spring; 16-Carton of cigarettes. Detailed Implementation

[0040] The present invention will be further described below with reference to embodiments.

[0041] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0042] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0043] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0044] Example:

[0045] like Figures 1 to 14 The image shown is a packing device for cigarettes in tobacco logistics according to this embodiment. It includes a frame 9, a film guiding mechanism 11, a pressing and conveying mechanism, an upper knife assembly 14, a lower knife assembly 13, an output table 2, a film feeding roller 8, a counterweight film passing assembly 10, and a conveyor 1.

[0046] A cigarette storage space 12 is provided in the middle of the frame 9. One end of the conveyor 1 is located in the cigarette storage space 12. A partition plate 1.1 is provided on the conveyor belt of the conveyor 1, which divides the space on the conveyor belt into multiple cigarette stacking positions 1.2. When in use, the cigarettes to be packaged are neatly stacked in the cigarette stacking positions 1.2 and conveyed by the conveyor 1 to the cigarette storage space 12 for packaging. In this embodiment, the conveyor 1 is a chain conveyor.

[0047] like Figure 4 and Figure 5As shown, film-feeding rollers 8 and counterweight film-passing assemblies 10 are respectively arranged on both sides of the cigarette storage space 12, with the counterweight film-passing assembly 10 located between the film-feeding rollers 8 and the conveyor 1. The structure of the film-feeding rollers 8 can adopt the non-powered film feeding mechanism provided by Chinese Patent Application No. 202021433095.3, or it can adopt a conventional mechanism in which the rollers are driven by a film-feeding motor. In use, the film rolls 7 are mounted on the film-feeding rollers 8 on both sides, and the packaging films 7.1 of the film rolls 7 on both sides are connected together and pass across the cigarette storage space 12.

[0048] like Figure 7 As shown, the counterweight film-coating assembly 10 of this embodiment has two corresponding front and rear limiting frames 10.3 and a counterweight rod 10.1. The limiting frames 10.3 are fixedly connected to the frame 9. Each of the front and rear limiting frames 10.3 has a vertically oriented elongated limiting hole 10.4. The counterweight rod 10.1 is located between the two limiting frames 10.3, with both ends of the counterweight rod 10.1 fitting into the elongated limiting hole 10.4, allowing the counterweight rod 10.1 to move freely up and down. The counterweight film-coating assembly of this embodiment also has two fixed guide rollers 10.2, which are respectively installed between the two limiting frames 10.3 and located on both sides above the elongated limiting hole 10.4. Figure 4 As shown, during use, the packaging films 7.1 on both sides will first pass over the fixed guide roller 10.2 near the film roll 7, then pass under the counterweight rod 10.1, and finally pass over the fixed guide roller 10.2 away from the film roll 7. During use, the counterweight rod 10.1 applies its own weight to the packaging film 7.1. The counterweight rod 10.1 can keep the packaging film 7.1 under a certain tension, which can prevent the packaging film 7.1 from becoming loose when the film roll 7 adds too much film due to rotational inertia. Moreover, keeping the packaging film 7.1 under a certain tension can better ensure the tightness of the packaging.

[0049] like Figure 4 and Figure 5 As shown, film guiding mechanisms 11 are provided on both sides of the cigarette storage space 12. During use, the packaging film 7.1 spanning the cigarette storage space 12 is simultaneously lifted and lowered by the film guiding mechanisms 11 on both sides. Figure 6 As shown, the film guiding mechanism includes a second lifting assembly, an upper guide roller 11.3, and a lower guide roller 11.4. The second lifting assembly includes a second lifting cylinder 11.1 and a second lifting frame 11.2. The second lifting cylinder 11.1 is vertically mounted upwards on both sides of the cigarette holding space 12. The second lifting frame 11.2 is connected to the upper end of the second lifting cylinder 11.1 and is moved up and down by the second lifting cylinder 11.1. The upper guide roller 11.3 and the lower guide roller 11.4 are respectively arranged laterally above and below the second lifting frame 11.2 of the second lifting assembly. Figure 4As shown, during use, the packaging films 7.1 on both sides will pass under the lower guide roller 11.4 and over the upper guide roller 11.3. When the second lifting cylinder 11.1 drives the second lifting frame 11.2 to rise, the packaging film 7.1 spanning the cigarette storage space 12 can be lifted. During the rising process, the packaging film 7.1 is also naturally tightened. When the second lifting cylinder 11.1 drives the second lifting frame 11.2 to fall, the packaging film 7.1 can cover the cigarettes in the cigarette storage space 12, and the lower guide roller 11.4 will pull the packaging film 7.1 down to make the packaging tighter.

[0050] like Figure 4 As shown, the output platform 2 is located on one side of the cigarette storage space 12, above the film-laying roller 8 on the same side. The output platform 2 uses a conveyor belt to transport the packaged cigarettes outward. The upper conveying surface of the output platform 2 is flush with the upper conveying surface of the conveyor 1.

[0051] The pressing mechanism is used to push the cigarettes wrapped in packaging film in the cigarette storage space 12 to one side onto the output platform 2, and applies pressure to the cigarettes during the pushing process. Figure 5 , Figure 8 and Figure 9 As shown, the pressing mechanism of this embodiment includes a translation component 3, a first lifting component 6, and a push plate 5. The translation component 3 is located above the cigarette holder space 12. The translation component 3 includes a translation motor 3.4, a transmission belt 3.5 mounted on both sides via sprockets 3.6, and a translation frame 3.1. Two parallel horizontal guide rails 3.3 are provided at the upper end of the frame 9. The extension direction of the horizontal guide rails 3.3 is parallel to the extension direction of the transmission belts 3.5. The translation frame 3.1 is located on the two horizontal guide rails 3.3. The two sides of the translation frame 3.1 are slidably connected to the horizontal guide rails 3.3 via horizontal sliders 3.2. The two sides of the translation frame 3.1 are also fixedly connected to the transmission belts 3.5 on both sides. The translation motor 3.4 is connected to the sprockets 3.6 on both sides via a transmission shaft 3.7. The translation motor 3.4 can drive the transmission belts 3.5 to rotate, thereby driving the translation frame 3.1 to move.

[0052] The first lifting assembly 6 is mounted on the translation frame 3.1 of the translation assembly 3 and moves together with the translation frame 3.1. The first lifting assembly 6 includes a lifting motor 6.6 and a first lifting frame 6.1. The lifting motor 6.6 is horizontally fixedly mounted on the translation frame 3.1. A transmission gear 6.5 is provided on the output shaft of the lifting motor 6.6. Vertical guide rails 6.3 are provided on both sides of the back of the first lifting frame 6.1. A vertical slider 6.7 is fixedly mounted on the translation frame 3.1. The vertical guide rails 6.3 are slidably connected to the vertical slider 6.7, allowing the first lifting frame 6.1 to slide up and down on the translation frame 3.1. A vertical rack 6.4 is also provided on the back of the first lifting frame 6.1. The rack 6.4 meshes with the transmission gear 6.5, thereby driving the first lifting frame 6.1 to slide up and down through the lifting motor 6.6. The push plate 5 is vertically fixedly mounted on the front of the first lifting frame 6.1 and close to the lower side of the first lifting frame 6.1. The push plate 5 is used to push the cigarette packs.

[0053] In this embodiment, the pressing mechanism also includes a vertically sliding pressing plate 4. Specifically, a horizontal mounting plate 3.8 is fixed in front of the translation frame 3.1. Two vertical sliding holes are provided on the mounting plate 3.8. The pressing plate 4 is horizontally positioned above the space in front of the push plate 5. Two parallel vertical guide rods 4.1 are provided on the top of the pressing plate 4. The guide rods 4.1 pass through the sliding holes to achieve the vertical sliding installation of the pressing plate 4. A horizontal first limiting plate 6.2 is provided at the upper end of the first lifting frame 6.1. A horizontal second limiting plate 4.2 is provided at the upper end of the guide rods 4.1 on the pressing plate 4. The second limiting plate 4.2 is directly above the first limiting plate 6.2. In use, as the first lifting frame 6.1 rises, it presses against the second limiting plate 4.2 via the first limiting plate 6.2, causing the cigarette pressing plate 4 to rise as well. When the first lifting frame 6.1 descends, and the cigarette pressing plate 4 presses down on the pack of cigarettes below, the first limiting plate 6.2 will detach from the second limiting plate 4.2, and the cigarette pressing plate 4 will remain pressed against the pack of cigarettes by its own weight. The cigarette pressing plate 4 applies a certain clamping force to the packed cigarettes, better preventing them from loosening due to inertia during the pushing process, resulting in a tighter pack.

[0054] In this embodiment, the upper blade assembly 14 is installed below the first lifting frame 6.1, located below the push plate 5. The upper blade assembly 14 includes an upper blade holder 14.1 and two upper pressure strips 14.2. The upper blade holder 14.1 is made of metal and is heat-conducting. The upper blade holder 14.1 is fixed to the lower side of the first lifting frame 6.1. An upper heating element 14.5 is provided inside the upper blade holder 14.1. Two parallel slots are provided on the lower side of the upper blade holder, and a concave cutting groove 14.3 is provided between the two slots. The upper pressure strips 14.2 are made of foamed silicone and have a cushioning effect. A locking block 14.4 is provided on the upper side of the upper pressure strip 14.2. The locking block 14.4 engages with the slots, thereby fixing the upper pressure strip 14.2 to the lower side of the upper blade holder 14.1.

[0055] The cutting tool assembly 13 is mounted on the mounting platform 13.6 at the input end of the output station, such as... Figures 10 to 14 As shown, the lower blade assembly 13 includes two lower blade holders 13.3, two heating wires 13.8, a Teflon film 13.2, a cutter 13.10, and a third lifting assembly. The two lower blade holders 13.3 are fixedly mounted side by side on the mounting platform 13.6 at the input end of the output station. The lower blade holders 13.3 are equipped with lower heating tubes 13.9. A groove 13.33 is provided on the upper part of the lower blade holders 13.3, and the heating wires 13.8 are embedded in the groove 13.11, which allows for better heat transfer between the heating wires and the lower blade holders, resulting in a more stable and uniform temperature during welding. Tensioning components 15 are provided at both ends of the lower blade holder 13.3. The tensioning components 15 are connected to the ends of the heating wire 13.8. The tensioning components 15 always keep the heating wire 13.8 taut, so that the heating wire 13.8 remains flat. During welding, the heating wire 13.8 can better adhere to the packaging film and make more full contact with the packaging film, thereby better ensuring the welding quality and improving the packaging quality. A Teflon film 13.2 is provided on the surface of the lower blade holder 13.3. The Teflon film 13.2 covers the heating wire 13.8, so that the heating wire 13.8 does not directly contact the packaging film during welding. The isolation provided by the Teflon film 13.2 prevents the packaging film from adhering to the lower blade holder 13.3 and the heating wire 13.8.

[0056] Among them, the groove 13.11 on the lower tool holder 13.3 near the output platform 2 is provided at the edge near the output platform 2. Figure 12 The lower blade holder 13.3 on the right side is the lower blade holder 13.3 near the output station 2, which makes the heating wire 13.8 on the lower blade holder 13.3 near the output station 2 closer to the output station 2, so that the welding position during packaging is closer to the packaged cigarette pack.

[0057] During use, the upper heating element 14.5 and the lower heating element 13.9 ensure that the upper blade holder 14.1 and the lower blade holder 13.3 are always kept at a certain low temperature, meaning that both the upper blade holder 14.1 and the lower blade holder 13.3 have heat tracing capabilities. This temperature is relatively low, preventing damage to the packaging film or cigarette packs upon contact. The heat tracing is for faster and more stable heating during subsequent welding. The heating wire 138 is embedded in the heated lower blade holder 13.3, further ensuring a more stable and uniform temperature during welding.

[0058] As can be seen, the heating element only serves to generate heat. During use, it provides heat to the upper and lower blade assemblies to eliminate the effects of external temperature or waiting time. The upper and lower blade assemblies remain at a low temperature when the packaging film is not being welded. Even if the packaging film or cigarette packs come into contact with them, they will not be burned or damaged, nor will the packaging film stick to the upper and lower blade assemblies. High temperatures are only generated briefly through the heating wire 13.8 when welding is required.

[0059] In this embodiment, the upper blade assembly 14 has a downwardly protruding stop 14.6 on its side near the output platform 2. The lower edge of the stop 14.6 is lower than the lower edge of the upper pressure bar 14.2, and the position of the stop 14.6 is offset from the position of the lower blade holder 13.3. When the upper blade assembly 14 and the lower blade assembly 13 are closed vertically, the stop 14.6 will be located on the outer side of the lower blade holder 13.3. Figure 16 As shown, when the pack of cigarettes wrapped in packaging film is pushed towards the output platform 2 by the push plate 5, the blocking edge 14.6 will prevent the packaging film from sticking to the bottom of the upper pressure strip 14.2. During the pushing process, there will be no friction between the packaging film and the upper pressure strip 14.2, thereby reducing the resistance during pushing.

[0060] like Figure 13 and Figure 14As shown, the tensioning assembly 15 in this embodiment includes a fixed base 15.2, a pull plate 15.1, and a spring 15.5. The fixed base 15.2 is fixed on the mounting platform 13.6 at the input end of the output station and is close to the end face of the lower cutter holder 13.3. The lower end of the pull plate 15.1 is rotatably connected to the end of the fixed base 15.2 away from the lower cutter holder 13.3 via a pin 15.4. The spring 15.5 is sleeved on the pin 15.4, with one end of the spring 15.5 pressing against the top of the fixed base 15.2 and the other end pressing against the inner side of the pull plate 15.1. The spring 15.5 provides a force to keep the pull plate 15.1 from flipping outward. A hook 15.3 is provided at the upper end of the pull plate 15.1, and a pull ring 13.7 is provided at the end of the heating wire 13.8. The hook 15.3 engages with the pull ring 13.7 to tighten the heating wire 13.8. In this embodiment, the lower blade assembly has end caps 13.5 at both ends, which cover the position of the tensioning assembly 15.

[0061] A cutter mounting groove 13.4 is provided between the two lower cutter holders 13.3, and the cutter 13.10 is installed in the cutter mounting groove 13.4. The third lifting assembly includes a third lifting cylinder 13.1, which is installed vertically upward below the cutter mounting groove 13.4. The lower end of the cutter 13.10 is connected to the upper end of the third lifting cylinder 13.1. The cutter 13.10 is driven to rise and fall by the third lifting cylinder 13.1 to cut the packaging film 7.1.

[0062] The usage process of the packing equipment for cigarette cartons in this embodiment is as follows:

[0063] Before use, such as Figure 4 As shown, the film roll 7 is mounted on the film feeding roller 8. The film roll 7 passes over the counterweight film-passing assembly 10 and the film guiding mechanism 11, and the packaging films 7.1 on both sides of the film roll 7 are welded together. In the initial state, the second lifting frame 11.2 of the film guiding mechanism 11 is in the high position, and the packaging film 7.1 on the conveyor 1 is lifted upwards. The packaging film 7.1 will not obstruct the operation of the conveyor 1 and the feeding of the cigarette packs. The upper heating tube 14.5 and the lower heating tube 13.9 always maintain heat, so that the upper and lower cutting assemblies are always kept at a certain low temperature.

[0064] The following packaging process is as follows:

[0065] 1. The cigarette packs 16 neatly stacked in the cigarette pack stacking position 1.2 are conveyed to the cigarette pack holding space 12 by the conveyor 1 and remain there. At this time, the cigarette packs 16 stacked in their cigarette pack stacking position 1.2 are exactly below the raised packaging film 7.1.

[0066] 2. The film guiding mechanism 11 drives its second lifting frame 11.2 to descend, and the packaging film 7.1 is lowered and wrapped around the top of the cigarette pack 16. During this process, the lower guide roller 11.4 pulls the packaging film 7.1 downward, so that the packaging film 7.1 can wrap more tightly around the cigarette pack 16. When the second lifting frame 11.2 descends to its position, the top of the upper guide roller 11.3 is basically flush with the upper conveying surface of the conveyor 1.

[0067] 3. The first lifting frame 6.1 of the pressing mechanism descends, which will drive the push plate 5 and the upper knife assembly 14 to descend together. At the same time, the pressing plate 4 also descends. During the descent, the pressing plate 4 first presses against the top of the carton of cigarettes 16. Then, the first lifting frame 6.1 continues to descend, and the first limiting plate 6.2 will detach from the second limiting plate 4.2. The pressing plate 4 presses down on the carton of cigarettes 16 by its own weight. When the first lifting frame 6.1 descends to its final position, there is only a small distance between the bottom of the upper knife assembly 14 and the upper conveying surface of the conveyor 1, preferably 5mm. At this time, if... Figure 15 As shown.

[0068] 4. The translation component 3 of the pressing mechanism moves to the side where the output platform 2 is located. The pusher plate 5 pushes the carton of cigarettes 16 wrapped with packaging film 7.1 towards the output platform 2. During the pushing process, the packaging film 7.1 will be pulled, making the packaging film 7.1 wrap the carton of cigarettes 16 more tightly. Finally, the carton of cigarettes 16 is completely pushed onto the output platform. At this time, the upper knife component 14 will be vertically aligned with the lower knife component 13, that is, the upper pressing strip 14.2 and the lower knife seat 13.3 are vertically aligned, the cutter 13.10 and the cutting groove 14.3 are vertically aligned, and the positions of the upper knife component 14 and the lower knife component 13 are close to the packaged carton of cigarettes.

[0069] 5. The first lifting frame 6.1 of the pressing mechanism descends again, causing the upper knife assembly 14 and the lower knife assembly 13 to close vertically. The upper pressure strip 14.2 of the upper knife assembly 14 presses onto the lower knife seat 13.3. The upper pressure strip 14.2, made of foamed silicone material, provides cushioning. The packaging film 7.1 will be pressed between the upper knife assembly 14 and the lower knife assembly 13. At this time, if... Figure 16 As shown. Then the heating wire 13.8 heats up instantly, and the upper and lower layers of packaging film 7.1 at the positions of the two heating wires 13.8 are fused together. After that, the third lifting component drives the cutter 13.10 to rise and cut the packaging film 7.1 between the two fused positions.

[0070] 6. Simultaneously, the film guiding mechanism 11 drives its second lifting frame 11.2 to rise, lifting the packaging film 7.1 again. The conveyor 1 transports the neatly stacked cartons of cigarettes 16 from the next cigarette stacking position 1.2 to the cigarette holding space 12. At this time, if... Figure 17 As shown.

[0071] 7. Next, the first lifting frame 6.1 of the pressing mechanism rises and resets. During the rising process, when the first limiting plate 6.2 is under the second limiting plate 4.2, it will rise together with the cigarette pressing plate 4 to the initial position. At the same time, the packaged cigarettes 16 on the output table 2 will be conveyed out. Figure 18 As shown. Then, the translation component 3 returns to its initial position, and the next packaging can then proceed.

[0072] The above embodiments of the present invention are not intended to limit the scope of protection of the present invention. The implementation of the present invention is not limited thereto. All other modifications, substitutions or alterations made to the above structure of the present invention based on the above content of the present invention, in accordance with ordinary technical knowledge and common practice in the field, without departing from the basic technical idea of ​​the present invention, shall fall within the scope of protection of the present invention.

Claims

1. A packing device for cigarettes in tobacco logistics, characterized in that: The device includes a frame, a film guiding mechanism, a pressing and feeding mechanism, an upper knife assembly, a lower knife assembly, an output platform, and film feeding rollers. The frame has a cigarette holder space, and the film feeding rollers are respectively arranged on both sides of the cigarette holder space. In use, the film rolls are installed on the film feeding rollers on both sides, and the packaging film of the film rolls on both sides is connected together and crosses over the cigarette holder space. The film guiding mechanism can lift and lower the packaging film that crosses the cigarette holder space. The output platform is located on one side of the cigarette holder space. The pressing and feeding mechanism is used to push the cigarettes wrapped in packaging film in the cigarette holder space to one side onto the output platform and apply pressure to the cigarettes during the pushing process. The upper knife assembly is arranged on the pressing and feeding mechanism, and the lower knife assembly is arranged at the input end of the output platform. When the pressing and feeding mechanism completes pushing the cigarettes to the output platform, the upper knife assembly and the lower knife assembly are vertically aligned. At this time, the upper and lower closing of the upper and lower knife assemblies realizes the welding and cutting of the packaging film. The pressing mechanism is equipped with a pressing plate that can slide up and down. When the pressing mechanism pushes the cigarette packs, the pressing plate will press down on the cigarette packs by its own weight. The pressing mechanism also includes a translation component, a first lifting component, and a push plate. The translation component is located above the cigarette holder space. The first lifting component is located on the translation frame of the translation component. The push plate is vertically fixedly installed on the first lifting frame of the first lifting component. The first lifting frame is provided with a first limiting plate. The cigarette pressing plate is slidably connected to the translation frame and is horizontally located above the space in front of the push plate. A second limiting plate is fixedly connected to the cigarette pressing plate. The second limiting plate is directly above the first limiting plate. The upper knife component is installed below the first lifting frame.

2. The packing equipment for cigarette cartons in tobacco logistics according to claim 1, characterized in that: A counterweight film-passing assembly is provided on both sides of the cigarette storage space. The counterweight film-passing assembly is provided with a limiting frame and a counterweight rod. The counterweight rod is located on the limiting frame and can move freely up and down on the limiting frame. When in use, the packaging film of the film rolls on both sides will pass under the counterweight rod respectively, and the counterweight rod will apply its own weight to the packaging film.

3. The packing equipment for cigarette cartons in tobacco logistics according to claim 2, characterized in that: The limiting frame is provided with two vertically oriented elongated limiting holes at the front and rear, and the two ends of the counterweight rod are respectively fitted into the elongated limiting holes.

4. The packing equipment for cigarette cartons in tobacco logistics according to claim 1, characterized in that: The film guiding mechanism is provided on both sides of the cigarette holding space. The film guiding mechanism includes a second lifting component, an upper guide roller and a lower guide roller. The upper guide roller and the lower guide roller are respectively located above and below the second lifting frame of the second lifting component. In use, the packaging film will pass under the lower guide roller and pass over the upper guide roller.

5. The packing equipment for cigarette cartons in tobacco logistics according to claim 1, characterized in that: The upper blade assembly includes an upper blade holder and two upper pressure strips fixed side by side below the upper blade holder. The lower blade assembly includes two lower blade holders arranged side by side, a heating wire disposed on the lower blade holder, a Teflon film covering the heating wire, a cutter disposed between the two lower blade holders, and a third lifting assembly. The cutter is driven to rise by the third lifting assembly and cuts the packaging film between the two lower blade holders. When the upper blade assembly and the lower blade assembly are closed vertically, the upper pressure strips will press on the lower blade holders accordingly, and at the same time, the heating of the heating wire will fuse the upper and lower packaging films together.

6. The packing equipment for cigarette cartons in tobacco logistics according to claim 5, characterized in that: The upper tool holder is equipped with an upper heating tube, and the lower tool holder is equipped with a lower heating tube. The upper heating tube and the lower heating tube enable the upper tool holder and the lower tool holder to always maintain a set temperature.

7. The packing equipment for cigarette cartons in tobacco logistics according to claim 5, characterized in that: The lower cutter holder has a groove on its upper surface, and the heating wire is embedded in the groove. Tensioning components are provided at both ends of the lower cutter holder. The tensioning components are connected to the ends of the heating wire, and the tensioning components always keep the heating wire taut.

8. The packing equipment for cigarette cartons in tobacco logistics according to claim 1, characterized in that: The packaging equipment for the cigarette packs also includes a conveyor, one end of which is located in the cigarette pack dwell space. The conveyor belt of the conveyor is equipped with a partition plate, which divides the space on the conveyor belt into multiple cigarette pack stacking positions. The cigarette packs stacked in the cigarette pack stacking positions will be conveyed to the cigarette pack dwell space for packaging.

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