Film wrapping device used in carton cigarette packaging

Abstract

The utility model discloses a film wrapping device used in carton cigarette packing, which comprises a rack, a film guiding mechanism, a counterweight film passing assembly and a film releasing roller, a carton cigarette staying space is arranged in the rack, and the film guiding mechanism, the counterweight film passing assembly and the film releasing roller are respectively arranged on two sides of the carton cigarette staying space. The film guide mechanism comprises an upper guide roller and a lower guide roller which are arranged on the side face of the cigarette carton staying space and lift up and down at the same time, the balance weight film passing assembly is located between the film guide mechanism and the film releasing rolling shafts, and the balance weight film passing assembly is provided with a balance weight rod freely moving up and down. The packaging films of the film releasing rolling shafts on the two sides are sequentially wound around the balance weight lever, the lower guide roller and the upper guide roller and are welded together, and the balance weight lever is pressed on the packaging films by means of self weight. The packaging film can be tightly wrapped on the stacked strip-shaped cigarettes.

Description

TECHNICAL FIELD

[0001] The utility model relates to tobacco logistics strip cigarette packing technical field, concretely relates to a kind of film wrapping device for strip cigarette packing. BACKGROUND

[0002] When strip cigarette leaves factory, it needs to be packed together with multiple strip cigarettes, so as to facilitate logistics distribution, for example, batch strip cigarettes are sent from factory to retail point such as small shop, so in tobacco logistics, it involves the process of packing strip cigarette together by wrapping packaging film. The application number for a kind of sealing and cutting equipment for strip cigarette packaging provided in Chinese patent publication No.2020107010349, which realizes the packing of strip cigarette by packaging film well.

[0003] In the process of packing strip cigarette by packaging film, it involves the process of wrapping packaging film to strip cigarette, but the existing equipment for packing strip cigarette cannot pack strip cigarette very tightly, and strip cigarette is prone to collapse. Therefore, the inventor designs a new film wrapping device for strip cigarette packing to tightly wrap packaging film on stacked strip cigarette. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of film wrapping device for strip cigarette packing, which can tightly wrap packaging film on stacked strip cigarette.

[0005] The utility model achieves the purpose by the following technical solutions:

[0006] A kind of film wrapping device for strip cigarette packing, characterized by: including rack, film guide mechanism, counterweight film passing assembly and film release roller, strip cigarette stay space is provided in rack, film guide mechanism, counterweight film passing assembly and film release roller are respectively provided at the both sides of strip cigarette stay space, film guide mechanism includes the upper and lower guide rollers on the same side of strip cigarette stay space, counterweight film passing assembly is located between film guide mechanism and film release roller, counterweight film passing assembly is provided with counterweight rod that is freely movable up and down, film roll is installed on the film release roller of both sides during use, the packaging film of film release roller of both sides is in turn wound around counterweight rod, lower guide roller and upper guide roller and fused together, wherein counterweight rod is pressed on packaging film by dead weight.

[0007] The further technical solutions of the utility model are: film guide mechanism includes second lifting assembly, and upper guide roller and lower guide roller are respectively arranged on second lifting assembly.

[0008] The further technical solutions of the utility model are: second lifting assembly includes flat plate and two lower edge plates fixed on both sides of lower edge of flat plate, upper guide roller is arranged on upper edge of flat plate, lower edge plate is provided with part protruding to back, and lower guide roller is arranged on the part protruding to back.

[0009] The further technical scheme of the utility model discloses: second lifting assembly includes second lifting frame, and second lifting frame is installed close to the side of cigarette stack space, and upper guide roller is horizontally arranged on the upper edge of second lifting frame, and lower guide roller is horizontally arranged on the lower edge of second lifting frame.

[0010] The further technical scheme of the utility model discloses: counterweight film passing assembly is equipped with two corresponding limit supports, and limit support is fixedly installed on the rack, and counterweight rod is arranged between two limit supports, and counterweight rod can freely move up and down on limit support.

[0011] The further technical scheme of the utility model discloses: two limit supports are respectively equipped with vertical long limit hole, and two ends of counterweight rod are respectively matched and passed in long limit hole.

[0012] The further technical scheme of the utility model discloses: counterweight film passing assembly is further equipped with two fixed guide rollers, and two fixed guide rollers are respectively arranged between two limit supports and are located on the upper side of long limit hole.

[0013] Compared with prior art, the utility model has the following beneficial effects:

[0014] The utility model discloses innovative mode of lifting and lowering is wrapped to the stacked cigarette in package film, when wrapping film, its film guide mechanism will first rise, and the package film is lifted upwards through upper guide roller, and the package film is pulled tight in the process of lifting, then the film guide mechanism drops, and the package film is wrapped to the stacked cigarette, and the package film is pulled down through lower guide roller in the process of dropping, and finally realizes tightly wrapping the package film to the stacked cigarette. Meanwhile, the utility model still passes through counterweight rod and presses on the package film, can make the package film always keep under certain tension, even when the package film is pulled, the package film is slack after inertia and more film, and the situation of slackening does not appear. DRAWINGS

[0015] Figure 1 It is the front view schematic diagram of the film wrapping device of the utility model embodiment;

[0016] Figure 2 It is the three-dimensional schematic diagram of the film wrapping device of the utility model embodiment;

[0017] Figure 3 It is the three-dimensional schematic diagram of the film guide mechanism of the utility model embodiment;

[0018] Figure 4 It is the three-dimensional schematic diagram of the counterweight film passing assembly of the utility model embodiment;

[0019] Figure 5 It is the three-dimensional schematic diagram of the cigarette packing equipment of the counterweight film passing assembly of the utility model embodiment.

[0020] Figure 6 is a stereogram of the strip-packed cigarette packing equipment with the counterweight film passing assembly of the embodiment of the present utility model;

[0021] Figure 7 is a front view schematic diagram of the strip-packed cigarette packing equipment with the counterweight film passing assembly of the embodiment of the present utility model;

[0022] Figure 8 is Figure 7 is a sectional view schematic diagram of the embodiment of the present utility model;

[0023] Figure 9 is a stereogram of the pressing and sending mechanism of the embodiment of the present utility model;

[0024] Figure 10 is a stereogram of the pressing and sending mechanism of the embodiment of the present utility model;

[0025] Figure 11 is a stereogram of the lower cutter assembly of the embodiment of the present utility model;

[0026] Figure 12 is a stereogram of the lower cutter assembly of the embodiment of the present utility model when the end cover is opened;

[0027] Figure 13 is a sectional view schematic diagram of the lower cutter assembly of the embodiment of the present utility model;

[0028] Figure 14 is a structural schematic diagram of one end of the lower cutter assembly of the embodiment of the present utility model;

[0029] Figure 15 is a front view schematic diagram of the tensioning assembly of the embodiment of the present utility model;

[0030] Figure 16 is a structural schematic diagram of the strip-packed cigarette packing equipment of the embodiment of the present utility model when packing;

[0031] Figure 17 is a structural schematic diagram of the strip-packed cigarette packing equipment of the embodiment of the present utility model when packing

[0032] Figure 18 is a structural schematic diagram of the strip-packed cigarette packing equipment of the embodiment of the present utility model when packing

[0033] Figure 19 is a structural schematic diagram of the strip-packed cigarette packing equipment of the embodiment of the present utility model when packing.

[0034] The meaning of the reference signs in the drawing is as follows:

[0035] 1-conveyor; 1.1-separation plate; 1.2-cigar stack position; 2-output table; 3-translation assembly; 3.1-translation frame; 3.2-horizontal slide; 3.3-horizontal guide rail; 3.4-translation motor; 3.5-transmission belt; 3.6-sprocket; 3.7-transmission shaft; 3.8-mounting plate; 4-cigar pressing plate; 4.1-guide rod; 4.2-second limiting plate; 5-push plate; 6-first lifting assembly; 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 slide; 7-film roll; 7.1-packaging film; 8-film unwinding roller; 9-frame; 10-counterweight film passing assembly; 10.1-counterweight rod; 10.2-fixed guide roller; 10.3-limiting frame; 10.4-long limiting hole; 11-film guiding mechanism; 11.1-second lifting cylinder; 11.2-second lifting frame; 11.3-upper guide roller; 11.4-lower guide roller; 11.5-flat plate; 11.6-lower edge plate; 11.7-backward protruding part; 12-cigar staying space; 13-lower cutter assembly; 13.1-third lifting cylinder; 13.2-PTFE film; 13.3-lower cutter seat; 13.4-cutter mounting groove; 13.5-end cover; 13.6-mounting platform; 13.7-pull ring; 13.8-heating wire; 13.9-lower heating pipe; 13.10-cutter; 13.11-groove; 14-upper cutter assembly; 14.1-upper cutter seat; 14.2-upper pressing strip; 14.3-cutting groove; 14.4-clamp block; 14.5-upper heating pipe; 15-tensioning assembly; 15.1-pull plate; 15.2-fixing seat; 15.3-pull hook; 15.4-pivot; 15.5-spring; 16-cigar pack. DETAILED DESCRIPTION

[0036] The utility model is further described below in combination with examples.

[0037] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relation indicated by up, down, front, back, left, right and the like based on the orientation or position relation shown in the drawings, is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0038] In the description of the utility model, the meaning of several is one or more, and the meaning of multiple is two or more, and greater than, less than, more than and the like are understood as not including the number, and above, below and the like are understood as including the number.If it is described to first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0039] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing, connecting should be understood broadly, and the specific meaning of the above words in the utility model can be determined by the person skilled in the art in combination with the specific content of the technical scheme.

[0040] Embodiment:

[0041] As Figure 1 The film wrapping device for packing cigarettes in a bundle includes a rack 9, a film guiding mechanism 11, a counterweight film passing assembly 10 and a film releasing roller 8. The middle part of the rack 9 is provided with a cigarette stopping space 12, and the film guiding mechanism 11, the film releasing roller 8 and the counterweight film passing assembly 10 are arranged on both sides of the cigarette stopping space 12, and the counterweight film passing assembly 10 is located between the film releasing roller 8 and the cigarette stopping space 12.

[0042] The structure of the film releasing roller 8 can adopt the unpowered film feeding mechanism provided in the Chinese patent with the application number 202021433095.3, or a conventional mechanism driven by a film releasing motor to rotate the roller. In use, the film roll 7 is installed on the film releasing roller 8 on both sides, and the packaging films 7.1 of the film rolls 7 on both sides are connected together and cross over the cigarette stopping space 12 from above.

[0043] As Figure 4 The counterweight film passing assembly 10 of the embodiment is provided with two corresponding limiting frames 10.3 and a counterweight rod 10.1, the limiting frames 10.3 are fixedly connected to the rack 9, the limiting frames 10.3 are respectively provided with vertical long limiting holes 10.4, the counterweight rod 10.1 is located between the two limiting frames 10.3, the two ends of the counterweight rod 10.1 are respectively matched with the long limiting holes 10.4, and the counterweight rod 10.1 can freely move up and down. The counterweight film passing assembly of the embodiment is also provided with two fixed guide rollers 10.2, the two fixed guide rollers 10.2 are respectively installed between the two limiting frames 10.3 and located on both sides of the upper surface of the long limiting hole 10.4. Figure 8 As Figure 8 shown, in use, the packaging films 7.1 on both sides will first pass over the upper surface of the fixed guide roller 10.2 close to the film roll 7, then pass over the lower surface of the counterweight rod 10.1, and finally pass over the upper surface of the fixed guide roller 10.2 away from the film roll 7. During use, the counterweight rod 10.1 applies its own gravity 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 sagging due to the rotational inertia of the film roll 7, and the packaging film 7.1 kept under a certain tension can better ensure the tightness of the packing.

[0044] The film guiding mechanism 11 on both sides is used to lift and lower the packaging film 7.1 across the space 12 for the cigarettes to stay in during use. Figure 3 As shown in the figure, 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 upwardly installed on both sides of the space 12 for the cigarettes to stay in. The second lifting frame 11.2 is connected to the upper end of the second lifting cylinder 11.1 and is driven by the second lifting cylinder 11.1 to move up and down. The upper guide roller 11.3 and the lower guide roller 11.4 are respectively horizontally arranged on the upper edge and the lower edge of the second lifting frame 11.2 of the second lifting assembly. Figure 8 As shown in the figure, during use, the packaging film 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 across the space 12 for the cigarettes to stay in can be lifted. During the rising process, the packaging film 7.1 is naturally tightened. When the second lifting cylinder 11.1 drives the second lifting frame 11.2 to descend, the packaging film 7.1 can cover the cigarettes in the space 12 for the cigarettes to stay in. The lower guide roller 11.4 will pull the packaging film 7.1 downward, so that the packaging is more compact.

[0045] In this embodiment, the second lifting frame 11.2 includes a vertical plate 11.5 and two lower edge plates 11.6 fixed on both sides of the lower edge of the vertical plate 11.5. The upper guide roller 11.3 is arranged on the upper edge of the vertical plate 11.5. The lower edge plate 11.6 is provided with a back protruding part 11.7. The lower guide roller 11.4 is arranged on the back protruding part 11.7, so that the lower guide roller 11.4 is offset a certain distance to the back of the second lifting frame 11.2.

[0046] The cigarette packing equipment using the film wrapping device of the present embodiment will be described below to better understand the film wrapping device of the present embodiment.

[0047] As shown in the figure, the cigarette packing equipment for use in tobacco logistics includes a pressing mechanism, an upper cutter assembly 14, a lower cutter assembly 13, an output table 2, a conveyor 1 and the film wrapping device of the present embodiment. Figures 5 to 15

[0048] One end of the conveyor 1 is located in the space 12 for the cigarettes to stay in. The conveyor belt of the conveyor 1 is provided with a partition plate 1.1, which divides the space on the conveyor belt into a plurality of cigarette stacking positions 1.2. The cigarettes to be packed are neatly stacked in the cigarette stacking positions 1.2 and are conveyed by the conveyor 1 to the space 12 for the cigarettes to stay in for packing. The conveyor 1 of the present embodiment is a chain plate conveyor.

[0049] As shown in the figure, the cigarette packing equipment for use in tobacco logistics includes a pressing mechanism, an upper cutter assembly 14, a lower cutter assembly 13, an output table 2, a conveyor 1 and the film wrapping device of the present embodiment. Figure 8 ​As shown, the output table 2 is arranged at one side of the cigarette staying space 12, above the film placing roller 8 at the same side. The output table 2 uses a conveying belt to convey the packaged cigarettes to the outside, and the upper conveying surface of the output table 2 is flush with the upper conveying surface of the conveying machine 1.

[0050] The pressing mechanism is used to push the packaged cigarettes in the cigarette staying space 12 to the output table 2 at one side. As shown in Figure 2 、 Figure 9 and Figure 10 , the pressing mechanism of the embodiment includes a translation assembly 3, a first lifting assembly 6 and a pushing plate 5. The translation assembly 3 is arranged above the cigarette staying space 12, and includes a translation motor 3.4, transmission belts 3.5 arranged at both sides through chain wheels 3.6 and a translation frame 3.1. Two horizontal guide rails 3.3 are arranged at the upper end of the machine frame 9, and 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 arranged on the two horizontal guide rails 3.3, and the two side edges of the translation frame 3.1 are respectively connected with the horizontal guide rails 3.3 through horizontal sliding blocks 3.2. The two side edges of the translation frame 3.1 are also respectively fixedly connected with the transmission belts 3.5 at both sides. The translation motor 3.4 is connected with the chain wheels 3.6 at both sides through a transmission shaft 3.7, so that the transmission belts 3.5 can be driven to rotate through the translation motor 3.4, and the translation frame 3.1 can be translated.

[0051] The first lifting assembly 6 is arranged on the translation frame 3.1 of the translation assembly 3 and translates 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 arranged on the translation frame 3.1, and a transmission gear 6.5 is arranged on the output shaft of the lifting motor 6.6. The back surface of the first lifting frame 6.1 is respectively provided with vertical guide rails 6.3, and a vertical sliding block 6.7 is fixedly arranged on the translation frame 3.1. The vertical guide rails 6.3 are connected with the vertical sliding block 6.7 in a sliding manner, so that the first lifting frame 6.1 can slide up and down on the translation frame 3.1. A vertical rack 6.4 is further arranged on the back surface of the first lifting frame 6.1, and the rack 6.4 is engaged with the transmission gear 6.5, so that the first lifting frame 6.1 can be driven to slide up and down by the lifting motor 6.6. The pushing plate 5 is vertically fixedly arranged on the front surface of the first lifting frame 6.1 and close to the lower edge of the first lifting frame 6.1, and is used to push the packaged cigarettes.

[0052] The pressing plate 4 is arranged to slide up and down on the pressing mechanism. The specific structure is that a horizontal mounting plate 3.8 is fixed on the front of the translation frame 3.1, two sliding holes are arranged on the mounting plate 3.8, the pressing plate 4 is horizontally arranged on the upper surface of the space in front of the push plate 5, two vertical guide rods 4.1 are arranged on the upper surface of the pressing plate 4, the guide rods 4.1 are matched to pass through the sliding holes to realize the sliding installation of the pressing plate 4 up and down. A horizontal first limiting plate 6.2 is arranged on the upper end of the first lifting frame 6.1, the upper end of the guide rod 4.1 on the pressing plate 4 is provided with a horizontal second limiting plate 4.2, and the second limiting plate 4.2 is opposite to the upper end of the first limiting plate 6.2. When the first lifting frame 6.1 is lifted, the first limiting plate 6.2 is pressed on the lower surface of the second limiting plate 4.2, so that the pressing plate 4 is lifted together. When the first lifting frame 6.1 is lowered, when the pressing plate 4 is pressed on the lower surface of the strip cigarette, the first limiting plate 6.2 is separated from the second limiting plate 4.2, and the pressing plate 4 is kept pressed on the lower surface of the strip cigarette by the weight. The pressing plate 4 can exert a certain up-down clamping force on the packed strip cigarette, which can better avoid the situation that the strip cigarette is scattered due to inertia forward out of the pushing process, so that the packing is more compact.

[0053] The upper knife assembly 14 of the embodiment is arranged on the lower edge of the first lifting frame 6.1 and below the push plate 5. The upper knife assembly 14 includes an upper knife seat 14.1 and two upper pressing strips 14.2. The upper knife seat 14.1 is made of metal and can conduct heat. The upper knife seat 14.1 is fixed on the lower edge of the first lifting frame 6.1, and an upper heating pipe 14.5 is arranged in the upper knife seat 14.1. The lower surface of the upper knife seat is provided with two parallel clamping grooves, and a concave cutting groove 14.3 is arranged between the two clamping grooves. The upper pressing strip 14.2 is made of foamed silica gel and has a buffering effect. The upper surface of the upper pressing strip 14.2 is provided with a clamping block 14.4, which is matched to be clamped into the clamping groove, so as to fix the upper pressing strip 14.2 on the lower surface of the upper knife seat 14.1.

[0054] The lower knife assembly 13 is arranged on the mounting platform 13.6 of the input end of the output table, as shown in Figures 11 to 15As shown, the lower cutter assembly 13 includes two lower cutter seats 13.3, two heating wires 13.8, a Teflon film 13.2, a cutter 13.10 and a third lifting assembly. The two lower cutter seats 13.3 are fixedly installed side by side on the mounting platform 13.6 at the input end of the output table, and the lower cutter seat 13.3 is provided with a lower heating pipe 13.9. A groove 13.33 is provided on the upper surface of the lower cutter seat 13.3, and the heating wire 13.8 is embedded in the groove 13.11, so that the heating wire and the lower cutter seat have better heat transfer, and the temperature during welding is more stable and uniform. Tensioning assemblies 15 are respectively arranged at both ends of the lower cutter seat 13.3, and the tensioning assemblies 15 are connected with the end portions of the heating wire 13.8. The tensioning assemblies 15 always keep the heating wire 13.8 taut, so that the heating wire 13.8 remains in a flat state, and the heating wire 13.8 can better adhere to and more fully contact the packaging film during welding, thereby better ensuring the welding quality and improving the packaging quality. The surface of the lower cutter seat 13.3 is provided with a Teflon film 13.2, and the Teflon film 13.2 covers the upper surface of the heating wire 13.8, so that the heating wire 13.8 does not directly contact the packaging film during welding. The isolation of the Teflon film 13.2 prevents the packaging film from adhering to the lower cutter seat 13.3 and the heating wire 13.8.

[0055] The groove 13.11 on the lower cutter seat 13.3 near the output table 2 is arranged near the edge of the output table 2 (the lower cutter seat 13.3 on the right side in the figure), so that the heating wire 13.8 on the lower cutter seat 13.3 near the output table 2 is closer to the output table 2, and the welding position during packaging is closer to the packaged cigarette rod. Figure 13

[0056] During use, the upper cutter seat 14.1 and the lower cutter seat 13.3 can always be kept at a certain low temperature by the upper heating pipe 14.5 and the lower heating pipe 13.9, i.e., the upper cutter seat 14.1 and the lower cutter seat 13.3 have heat tracing. Of course, the temperature is a relatively low temperature, and contact with the packaging film or the cigarette rod will not cause the outer packaging of the packaging film or the cigarette rod to be scalded. The heat tracing is generated to make the heating during subsequent welding more rapid and stable. The heating wire 138 is installed in an embedded manner on the lower cutter seat 13.3 with heat tracing, so that the temperature during welding is more stable and uniform.

[0057] ​It can be seen that the heating tube only functions to generate heat tracing, and in the use process, the heating tube provides heat tracing energy for the upper and lower knife assemblies to eliminate the influence of external temperature or operation waiting, etc. The upper and lower knife assemblies are kept in a low temperature state when the packaging film is not welded, and even if the packaging film or the stick of cigarettes collides with it, it will not be scalded or even damaged, and it will not cause the packaging film to stick to the upper and lower knife assemblies. It only generates high temperature in a short time through the heating wire 13.8 when welding is needed.

[0058] As shown in Figure 14 and Figure 15 , the tensioning assembly 15 of the present embodiment includes a fixed seat 15.2, a pull plate 15.1 and a spring 15.5. The fixed seat 15.2 is fixed on the mounting platform 13.6 of the input end of the output table and is close to the end face of the lower knife seat 13.3. The lower end of the pull plate 15.1 is rotationally connected to the end of the fixed seat 15.2 away from the lower knife seat 13.3 through a pin shaft 15.4. The spring 15.5 is sleeved on the pin shaft 15.4, one end of the spring 15.5 is pressed on the upper surface of the fixed seat 15.2, and the other end is pressed on the inner side surface of the pull plate 15.1. The spring 15.5 provides a force to keep the pull plate 15.1 turned outward. A pull 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 pull hook 15.3 is hooked on the pull ring 13.7, thereby tensioning the heating wire 13.8. The two ends of the lower knife assembly of the present embodiment are provided with end covers 13.5, and the position of the tensioning assembly 15 is covered by the end covers 13.5.

[0059] A cutter mounting groove 13.4 is provided between the two lower knife seats 13.3, and a cutter 13.10 is mounted 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, and the cutter 13.10 is driven to lift by the third lifting cylinder 13.1 to achieve cutting of the packaging film 7.1.

[0060] The use process of the stick cigarette packaging equipment of the present embodiment is as follows:

[0061] Before use, as shown in Figure 8As shown, the film roll 7 is installed on the film roll mounting roller 8, the film roll 7 is wound around the counterweight film passing assembly 10 and the film guide mechanism 11, and the packaging film 7.1 on both sides of the film roll 7 is welded together. In the initial state, the second lifting frame 11.2 of the film guide mechanism 11 is in the state of being lifted to the high position, the packaging film 7.1 above the conveyor 1 is lifted upward, and the packaging film 7.1 does not hinder the operation of the conveyor 1 and the feeding of the carton cigarette. At the same time, the upper heating tube 14.5 and the lower heating tube 13.9 are always kept in the state of heating, so that the upper cutter assembly and the lower cutter assembly are always kept in a certain low temperature state.

[0062] The next packaging process is as follows:

[0063] 1. The carton cigarettes 16 neatly stacked in the carton cigarette stacking position 1.2 are conveyed to the carton cigarette stopping space 12 by the conveyor 1 and stopped, at this time, the carton cigarettes 16 stacked in the carton cigarette stacking position 1.2 are just below the packaging film 7.1 which is lifted.

[0064] 2. The second lifting frame 11.2 of the film guide mechanism 11 is driven to descend, the packaging film 7.1 is lowered and wrapped around the carton cigarettes 16, and in this process, the lower guide roller 11.4 pulls the packaging film 7.1 downward, so that the packaging film 7.1 can be wrapped more tightly around the carton cigarettes 16. When the second lifting frame 11.2 is lowered to the position, the upper surface of the upper guide roller 11.3 is basically flush with the upper conveying surface of the conveyor 1.

[0065] 3. The first lifting frame 6.1 of the pressing and conveying mechanism is lowered, which drives the push plate 5 and the upper cutter assembly 14 to descend together, and the pressing plate 4 also descends at the same time. In the descending process, the pressing plate 4 first presses against the upper surface of the carton cigarettes 16, and then the first lifting frame 6.1 continues to descend, the first limiting plate 6.2 is separated from the second limiting plate 4.2, and the pressing plate 4 is pressed against the carton cigarettes 16 by its own gravity. When the first lifting frame 6.1 is lowered to the position, the lower surface of the upper cutter assembly 14 is only a small distance away from the upper conveying surface of the conveyor 1, and the preferred distance is 5 mm. At this time, as shown in the figure. Figure 16

[0066] 4. The translation assembly 3 of the pressing and conveying mechanism is translated to the side where the output table 2 is located, and the carton cigarettes 16 wrapped with the packaging film 7.1 are pushed to the output table 2 by the push plate 5. In the pushing process, the packaging film 7.1 is pulled, so that the packaging film 7.1 is wrapped more tightly around the carton cigarettes 16, and finally the carton cigarettes 16 are completely pushed onto the output table. At this time, the upper cutter assembly 14 is aligned with the lower cutter assembly 13, that is, the upper pressing strip 14.2 is aligned with the lower cutter seat 13.3, the cutting knife 13.10 is aligned with the cutting groove 14.3, and the positions of the upper cutter assembly 14 and the lower cutter assembly 13 are close to the carton cigarettes to be packaged.

[0067] ​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 17 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.

[0068] 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 18 As shown.

[0069] 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 19 As shown. Then, the translation component 3 returns to its initial position, and the next packaging can then proceed.

[0070] In the above process, such as Figure 17 As shown, the second lifting component is in the lowered state. Figure 18 When the lifting component is in the upward state, the length of the packaging film wrapped between the two side film rolls 7 is approximately the same in both states. Therefore, when the lifting component descends, it can pre-wrap 1-25 packs of cigarettes stacked together.

[0071] The above embodiments of this utility model are not intended to limit the scope of protection of this utility model. The implementation of this utility model is not limited thereto. All other modifications, substitutions or alterations made to the above structure of this utility model based on the above content of this utility model and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, shall fall within the scope of protection of this utility model.

Claims

1. A wrapper for use in the packing of a carton of cigarettes, characterised in that: The machine frame, film guide mechanism, counterweight film passing assembly and film releasing roller, the machine frame is provided with a cigarette staying space, the film guide mechanism and the counterweight film passing assembly are arranged on both sides of the cigarette staying space, the film guide mechanism comprises upper and lower guide rollers arranged on the side of the cigarette staying space, the counterweight film passing assembly is arranged between the film guide mechanism and the film releasing roller, the counterweight film passing assembly is provided with a counterweight rod which can move up and down freely, the film roll is installed on the film releasing roller, the packaging film on the film releasing roller passes the counterweight rod, the lower guide roller and the upper guide roller in turn and is fused together, wherein the counterweight rod is pressed on the packaging film by its own weight.

2. A wrapper for use in the packing of packs of cigarettes according to claim 1, characterised in that: The film guide mechanism comprises a second lifting assembly, and the upper guide roller and the lower guide roller are arranged on the second lifting assembly.

3. A wrapper for use in the packing of packs of cigarettes according to claim 2, characterised in that: The second lifting assembly comprises a flat plate and two lower edge plates fixed on both sides of the lower edge of the flat plate, the upper guide roller is arranged on the upper edge of the flat plate, the lower edge plate is provided with a part protruding backward, and the lower guide roller is arranged on the part protruding backward.

4. The wrapper for use in the packing of packs of cigarettes according to claim 2, characterized in that: The second lifting assembly comprises a second lifting frame, the second lifting frame is arranged close to the side of the cigarette staying space, the upper guide roller is arranged on the upper edge of the second lifting frame, and the lower guide roller is arranged on the lower edge of the second lifting frame.

5. The wrapper for use in the packing of packs of cigarettes according to claim 1, characterized in that: The counterweight film passing assembly is provided with two corresponding limiting frames, the limiting frames are fixedly arranged on the machine frame, the counterweight rod is arranged between the two limiting frames, and the counterweight rod can move up and down freely on the limiting frames.

6. A wrapper for use in the packing of packs of cigarettes according to claim 5, characterised in that: Two vertical long limiting holes are arranged on the two limiting frames respectively, and the two ends of the counterweight rod are respectively matched with the long limiting holes.

7. A wrapper for use in the packing of packs of cigarettes according to claim 6, characterised in that: The counterweight film passing assembly is further provided with two fixed guide rollers, the two fixed guide rollers are arranged between the two limiting frames and on both sides of the upper surface of the long limiting hole.

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