A method for heat-sealing boxed films using a boxed film heat-sealing device

Abstract

This invention discloses a boxed film heat-sealing method using a boxed film heat-sealing device. The device includes: a wrapping assembly, a heat-sealing assembly, and a cigarette-pushing assembly arranged sequentially. The wrapping assembly includes a cigarette-pushing cylinder, a rear-end cigarette-pushing plate, a cigarette-receiving plate, a cigarette-receiving cylinder, and a film mounting assembly. The rear-end cigarette-pushing plate and the cigarette-receiving plate are vertically located on both sides of the wrapping station. The cigarette-pushing cylinder and the cigarette-receiving cylinder are located outside the rear-end cigarette-pushing plate and the cigarette-receiving cylinder. The film mounting assembly contains a film. The heat-sealing assembly includes a soldering iron cylinder assembly and a soldering iron assembly. The cigarette-pushing assembly includes an ejection cylinder perpendicular to the cigarette-pushing cylinder and a cigarette sleeve opening located at the end. The ejection cylinder and the cigarette-receiving cylinder are located on both sides of the cigarette-pushing cylinder. This boxed film heat-sealing method using a boxed film heat-sealing device can complete the overall wrapping of cigarettes. It has the advantages of being simple and easy to use, fast, and efficient, solving problems such as high labor costs, high workload, low efficiency, inconsistent wrapping quality, and personal safety concerns.

Description

Technical Field

[0001] This invention relates to the field of cigarette packaging equipment technology, and in particular to a method for heat sealing boxed films using a boxed film heat sealing device. Background Technology

[0002] As Chinese tobacco companies grow stronger, venturing abroad to seize overseas market share is an inevitable trend in the tobacco industry. The production volume of exported cigarettes is increasing, and these cigarettes are generally transported overseas by sea. Tobacco needs to be kept dry at all times, requiring a thin film to be wrapped around the outside of the cigarette packs to prevent them from getting damp from sea breezes.

[0003] Currently, exported cigarettes are mainly wrapped manually, which results in low work efficiency and waste of human resources.

[0004] Therefore, there is an urgent need for a box-packing film heat-sealing method using a box-packing film heat-sealing device. Summary of the Invention

[0005] The purpose of this invention is to provide a boxed film heat-sealing method using a boxed film heat-sealing device to solve the problems in the prior art and to achieve automatic wrapping of export-grade cigarette strips.

[0006] This invention provides a boxed film heat-sealing device, comprising:

[0007] A mounting bracket and a wrapping assembly, a heat-sealing assembly, and a smoke-pushing assembly disposed on the mounting bracket, wherein the wrapping assembly is located to the left of the heat-sealing assembly, and the smoke-pushing assembly is located to the right of the heat-sealing assembly, wherein:

[0008] The coating assembly includes a smoke-pushing cylinder, a rear smoke-pushing plate, a smoke-receiving plate, a smoke-receiving cylinder, and a film installation assembly. The rear smoke-pushing plate and the smoke-receiving plate are located perpendicularly to each other on both sides of the coating station. The rear smoke-pushing plate and the smoke-receiving plate are used to jointly push the stack of cigarettes to the coating station. The rear smoke-pushing plate is also used to push the coated stack of cigarettes to the heat-sealing station and push the heat-sealed stack of cigarettes to the ejection station. The smoke-pushing cylinder is located outside the rear smoke-pushing plate and is used to drive the rear smoke-pushing plate to perform a smoke-pushing action. The smoke-receiving cylinder is located outside the smoke-receiving plate and is used to drive the smoke-receiving plate to perform a smoke-pushing action. The film installation assembly has a film installed in it for wrapping the film above and below the stack of cigarettes, respectively.

[0009] The heat sealing assembly includes a soldering iron cylinder assembly, a soldering iron assembly, and a pressing plate. The soldering iron assembly is used to heat seal the left side, top, and bottom of the cigarette stack, respectively. The soldering iron cylinder assembly drives the corresponding soldering iron to move. The pressing plate is set above the heat sealing station to expel air from the film.

[0010] The cigarette pushing assembly includes a pushing cylinder and a cigarette pack opening. The pushing cylinder is perpendicular to the cigarette pushing cylinder, and the pushing cylinder and the cigarette receiving cylinder are located on opposite sides of the pushing cylinder. The cigarette pack opening is located at the very end of the pushing station. The pushing cylinder is used to move forward toward the cigarette pack opening after the cigarette pack has been heat-sealed.

[0011] In the boxed film heat-sealing device described above, preferably, there are two film mounting components, located above and below the wrapping station, respectively. Each film mounting component includes a rotatable film support, on which a transparent film is placed. Clamping rods for clamping the transparent film are provided on both sides of the film support. Two inclined gears are provided on one side of the film support, and the two gears are connected by a toothed belt. The two gears are a driving gear and a driven gear, respectively. The driving gear is connected to a motor, and the driven gear is connected to the rotation shaft of the film support.

[0012] In the boxed film heat sealing device described above, preferably, the wrapping assembly further includes a front-end smoke pusher plate, the front-end smoke pusher plate and the rear-end smoke pusher plate are symmetrically located on both sides of the wrapping station, and a front-end cylinder is provided on the outer side of the front-end smoke pusher plate, the front-end cylinder being used to drive the front-end smoke pusher plate to perform a smoke pushing action.

[0013] In the boxed film heat-sealing device described above, preferably, the soldering iron cylinder assembly includes an upper left-end heat-sealing cylinder and a lower left-end heat-sealing cylinder for heat-sealing the left end of the coated cigarette pack, an upper rear-end heat-sealing cylinder and a lower rear-end heat-sealing cylinder for heat-sealing the rear end of the coated cigarette pack, and an upper front-end heat-sealing cylinder and a lower front-end heat-sealing cylinder for heat-sealing the front end of the coated cigarette pack. The upper left-end heat-sealing cylinder is mounted on a first cylinder support, the upper rear-end heat-sealing cylinder is mounted on a second cylinder support, and the upper front-end heat-sealing cylinder is mounted on a third cylinder support. The second and third cylinder supports are perpendicular to the first cylinder support, and all three cylinder supports are located above the heat-sealing station. The lower left-end heat-sealing cylinder, the lower rear-end heat-sealing cylinder, and the lower front-end heat-sealing cylinder are fixed to a support plate, which supports the coated cigarette pack.

[0014] In the boxed film heat-sealing device described above, preferably, the soldering iron assembly includes an upper left heat-sealing soldering iron, a rear upper heat-sealing soldering iron, a rear lower heat-sealing soldering iron, a front lower heat-sealing soldering iron, a lower left heat-sealing soldering iron, and a front upper heat-sealing soldering iron. The upper left heat-sealing soldering iron is disposed at the front end of the upper left heat-sealing cylinder, the rear upper heat-sealing soldering iron is disposed at the front end of the upper rear heat-sealing cylinder, the rear lower heat-sealing soldering iron is disposed at the front end of the lower rear heat-sealing cylinder, the front lower heat-sealing soldering iron is disposed at the front end of the lower front heat-sealing cylinder, the lower left heat-sealing soldering iron is disposed at the front end of the lower left heat-sealing cylinder, and the front upper heat-sealing soldering iron is disposed at the front end of the upper front heat-sealing cylinder.

[0015] In the boxed film heat sealing device described above, preferably, a cutter is fixed on the upper left heat sealing iron, the upper rear heat sealing iron, the lower rear heat sealing iron, the lower front heat sealing iron, the lower left heat sealing iron, and the upper front heat sealing iron.

[0016] In the boxed film heat sealing device described above, preferably, the heat sealing assembly further includes a fourth cylinder bracket, on which a pressing cylinder is fixed. The fourth cylinder bracket is located at the right end of the heat sealing station and is parallel to the first cylinder bracket. Furthermore, the first cylinder bracket, the second cylinder bracket, the third cylinder bracket, and the fourth cylinder bracket are located on the same plane.

[0017] In the boxed film heat sealing device described above, preferably, a pressure support rod is fixed to the front end of the pressure cylinder, and a pressure plate is provided below the pressure support rod. The pressure cylinder is used to drive the pressure plate through the pressure support rod to squeeze out the gas in the film-coated cigarette strip.

[0018] In the boxed film heat-sealing device described above, preferably, the cigarette pushing assembly further includes a movable plate, the pushing cylinder is located on the upper left of the movable plate, and the front end of the pushing cylinder is fixed with a cigarette pushing plate; the movable plate is fixed on a movable guide rail by a movable slide, the movable guide rail having an I-beam structure, and the movable slide can move left and right along the movable guide rail; a movable cylinder is fixed below the movable plate, the movable cylinder being used to drive the movable plate from the heat-sealing station to the pushing plate at the pushing station, the movement direction of the movable cylinder being perpendicular to the movement direction of the pushing cylinder, and cigarette pushing brackets are provided on the front and rear sides below the pushing plate; baffles are connected to both sides of the movable cylinder by first fixing blocks, the baffles being perpendicular to the movable plate, the cigarette pack opening being located between the two baffles, and a second fixing block being provided on the outer side of the baffles.

[0019] The present invention also provides a method for heat-sealing a boxed film using the above-described apparatus, comprising the following steps:

[0020] A film is wrapped around a stack of cigarette packs using a wrapping assembly.

[0021] The wrapped cigarette packs are pushed into the heat-sealing assembly to heat-seal them.

[0022] The heat-sealed cigarette pack is pushed into the cigarette pack opening using the cigarette pusher assembly.

[0023] This invention provides a boxed film heat-sealing method using a boxed film heat-sealing device. The method completes the overall wrapping of the cigarette pack by using a wrapping component, a heat-sealing component, and a cigarette pushing component. It has the advantages of being simple and easy to use, fast, and efficient, and solves the problems of high labor costs, high labor intensity, low efficiency, inconsistent quality, and personal safety associated with manual wrapping. Attached Figure Description

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described below with reference to the accompanying drawings, wherein:

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the boxed film heat sealing device provided by the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of the wrapping assembly in an embodiment of the boxed film heat sealing device provided by the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the heat sealing assembly in an embodiment of the boxed film heat sealing device provided by the present invention;

[0028] Figure 4 This is a schematic diagram of the ejection assembly of an embodiment of the boxed film heat-sealing device provided by the present invention;

[0029] Figure 5 and Figure 6 This is a schematic diagram of the structure of the sliding plate assembly in an embodiment of the boxed film heat sealing device provided by the present invention;

[0030] Figure 7 This is a schematic diagram illustrating the working process of an embodiment of the boxed film heat sealing device provided by the present invention;

[0031] Figure 8 This is a flowchart illustrating an embodiment of the boxed film heat-sealing method provided by the present invention.

[0032] Explanation of reference numerals in the attached diagram: 1-Push-smoke cylinder, 2-Mounting bracket, 3-Heat-sealing assembly, 4-Push-smoke assembly, 5-Soldering iron cylinder assembly, 6-Rear-end push-smoke plate, 7-Receive-smoke plate, 8-Receive-smoke cylinder, 9-Soldering iron assembly, 10-Film mounting assembly, 11-Push-flat plate, 12-Wrapping assembly, 21-Upper front-end heat-sealing cylinder, 22-Pressure cylinder, 23-Upper rear-end heat-sealing cylinder, 24-Fourth cylinder bracket, 25-Rear upper heat-sealing soldering iron, 26-Support plate, 27-Rear lower heat-sealing soldering iron, 28-Lower rear-end heat-sealing cylinder, 29-Upper left-end heat-sealing cylinder, 30-Pressure support rod, 31-Upper left heat-sealing cylinder Soldering iron, 32-coated cigarette pack, 33-pressing plate, 34-first cylinder support, 35-cutting blade, 36-second cylinder support, 37-third cylinder support, 40-ejection plate, 41-ejection cylinder, 42-cigarette pack opening, 43-moving plate, 44-moving guide rail, 45-second fixing block, 46-baffle, 47-moving slide, 48-moving cylinder, 49-cigarette pusher support, 50-first fixing block, 51-transparent film, 52-film support, 53-motor, 54-toothed belt, 55-gear, 56-front cylinder, 57-front pusher plate, 58-clamping rod, 59-pusher plate. Detailed Implementation

[0033] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the present disclosure or its application or use. The present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that the present disclosure will be thorough and complete, and will fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless specifically stated otherwise, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0034] The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Terms such as “including” or “contains” mean that the element preceding the term encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as “above” and “below” are used only to indicate relative positional relationships; when the absolute position of the described object changes, this relative positional relationship may also change accordingly.

[0035] In this disclosure, when a specific component is described as being located between a first component and a second component, an intermediary component may or may not be present between the specific component and the first or second component. When a specific component is described as connecting to other components, the specific component may be directly connected to the other components without having an intermediary component, or it may not be directly connected to the other components but may have an intermediary component.

[0036] All terms used in this disclosure (including technical or scientific terms) have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as a dictionary, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.

[0037] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0038] like Figure 1 As shown, an embodiment of the present invention provides a boxed film heat-sealing device, which includes:

[0039] The mounting bracket 2 and the wrapping assembly 12, heat sealing assembly 3, and smoke pushing assembly 4 disposed on the mounting bracket, wherein the wrapping assembly 12 is located to the left of the heat sealing assembly 3, and the smoke pushing assembly 4 is located to the right of the heat sealing assembly 3, wherein:

[0040] The coating assembly 12 includes a smoke-pushing cylinder 1, a rear smoke-pushing plate 6, a smoke-receiving plate 7, a smoke-receiving cylinder 8, and a film mounting assembly 10. The rear smoke-pushing plate 6 and the smoke-receiving plate 7 are located perpendicularly to each other on both sides of the coating station. The rear smoke-pushing plate 6 and the smoke-receiving plate 7 are used to jointly push the stack of cigarettes to the coating station. The rear smoke-pushing plate 6 is also used to push the coated stack of cigarettes to the heat-sealing station and push the heat-sealed stack of cigarettes to the ejection station. The smoke-pushing cylinder 1 is located outside the rear smoke-pushing plate 6 and is used to drive the rear smoke-pushing plate 6 to perform a smoke-pushing action. The smoke-receiving cylinder 8 is located outside the smoke-receiving plate 7 and is used to drive the smoke-receiving plate 7 to perform a smoke-pushing action. The film mounting assembly 10 is equipped with a film for wrapping the film above and below the stack of cigarettes, respectively.

[0041] The heat sealing assembly 3 includes a soldering iron cylinder assembly 5, a soldering iron assembly 9, and a pressing plate 11. The soldering iron assembly 9 is used to heat seal the left side, top, and bottom of the cigarette stack, respectively. The soldering iron cylinder assembly 5 drives the corresponding soldering iron to move. The pressing plate 11 is set above the heat sealing station to expel air from the film.

[0042] The cigarette pushing assembly 4 includes a pushing cylinder 41 and a cigarette pack opening 42. The pushing cylinder 41 is perpendicular to the cigarette pushing cylinder 1, and the pushing cylinder 41 and the cigarette receiving cylinder 8 are located on both sides of the cigarette pushing cylinder 1. The cigarette pack opening 42 is located at the very end of the pushing station. The pushing cylinder 41 is used to move forward to the cigarette pack opening 42 after the cigarette has been heat-sealed.

[0043] The number of the thin film mounting components 10 is two, located above and below the coating station, respectively. Specifically, as shown... Figure 2 As shown, each of the film mounting assemblies 10 includes a rotatable film support 52, on which a transparent film 51 is placed. Clamping rods 58 are provided on both sides of the film support 52 to clamp the transparent film, thereby locking the transparent film 51 vertically and preventing it from moving. Two inclined gears 55 are provided on one side of the film support 52, connected by a toothed belt 54. The two gears are a driving gear and a driven gear, respectively. The driving gear is connected to a motor 53, and the driven gear is connected to the rotation shaft of the film support. The motor 53 drives the gears 55 to rotate, which in turn drives the toothed belt 54, which in turn drives the film support 52 to rotate, thereby releasing the transparent film 51.

[0044] Furthermore, such as Figure 2 As shown, the coating assembly 12 also includes a front-end smoke pusher 57. The front-end smoke pusher 57 and the rear-end smoke pusher 6 are symmetrically located on both sides of the coating station. A front-end cylinder 56 is provided on the outer side of the front-end smoke pusher 57. The front-end cylinder is used to drive the front-end smoke pusher 57 to perform a smoke pushing action. The front-end cylinder 56 drives the front-end smoke pusher 57 to move to the left.

[0045] Furthermore, such as Figure 3As shown, the soldering iron cylinder assembly 5 includes an upper left-end heat-sealing cylinder 29 and a lower left-end heat-sealing cylinder (not shown) for heat-sealing the left end of the coated cigarette pack; an upper rear-end heat-sealing cylinder 23 and a lower rear-end heat-sealing cylinder 28 for heat-sealing the rear end of the coated cigarette pack; and an upper front-end heat-sealing cylinder 21 and a lower front-end heat-sealing cylinder (not shown) for heat-sealing the front end of the coated cigarette pack. The upper left-end heat-sealing cylinder 29 is mounted on a first cylinder bracket 34, and the upper rear-end heat-sealing cylinder 23 is mounted on a second cylinder bracket 3. 6. The upper front heat-sealing cylinder 21 is mounted on the third cylinder bracket 37. The second cylinder bracket 36 and the third cylinder bracket are perpendicular to the first cylinder bracket 34, and the first cylinder bracket 34, the second cylinder bracket 36 and the third cylinder bracket 37 are all located above the heat-sealing station. The lower left heat-sealing cylinder, the lower rear heat-sealing cylinder 28 and the lower front heat-sealing cylinder (not shown) are fixed on the support plate 26. The support plate 26 is used to support the coated cigarette pack.

[0046] Furthermore, such as Figure 3 As shown, the soldering iron assembly 9 includes an upper left heat-sealing soldering iron 31, an upper rear heat-sealing soldering iron 25, a lower rear heat-sealing soldering iron 27, a lower front heat-sealing soldering iron (not shown), a lower left heat-sealing soldering iron (not shown), and an upper front heat-sealing soldering iron (not shown). The upper left heat-sealing soldering iron 31 is located at the front end of the upper left heat-sealing cylinder 29. The upper rear heat-sealing soldering iron 25 is located at the front end of the upper rear heat-sealing cylinder 23. The lower rear heat-sealing soldering iron 27 is located at the front end of the lower rear heat-sealing cylinder 28. The lower front heat-sealing soldering iron is located at the front end of the lower front heat-sealing cylinder. The lower left heat-sealing soldering iron is located at the front end of the lower left heat-sealing cylinder. The upper front heat-sealing soldering iron is located at the front end of the upper front heat-sealing cylinder. The upper left heat-sealing soldering iron 31, the upper rear heat-sealing soldering iron 25, the lower rear heat-sealing soldering iron 27, the lower front heat-sealing soldering iron, and the lower left heat-sealing soldering iron are heated by hot-melt wire. Furthermore, cutters 35 are fixed to the upper left heat-sealing iron 31, the upper rear heat-sealing iron 25, the lower rear heat-sealing iron 27, the lower front heat-sealing iron, the lower left heat-sealing iron, and the upper front heat-sealing iron, respectively. The upper left heat-sealing cylinder 29, the lower left heat-sealing cylinder, the upper rear heat-sealing cylinder 23, the lower rear heat-sealing cylinder 28, the upper front heat-sealing cylinder 21, and the lower front heat-sealing cylinder are used to drive the corresponding heat-sealing irons to move downward or upward to heat-seal the coated cigarette strip 32. The cutter 35 is used to cut the film on the coated cigarette strip 32 after heat sealing.

[0047] Furthermore, such as Figure 3As shown, the heat-sealing assembly 3 further includes a fourth cylinder bracket 24, on which a pressing cylinder 22 is fixed. The fourth cylinder bracket 24 is located at the right end of the heat-sealing station and is parallel to the first cylinder bracket 34. Furthermore, the first cylinder bracket 34, the second cylinder bracket 36, the third cylinder bracket 37, and the fourth cylinder bracket 24 are located on the same plane. A pressing support rod 30 is fixed to the front end of the pressing cylinder 22, and a pressing plate 33 is disposed below the pressing support rod 30. The pressing cylinder 22 is used to drive the pressing plate 33 through the pressing support rod 30 to squeeze out the gas in the coated cigarette strip. The pressing plate 33 is fixed to the pressing support rod 30 by a nut.

[0048] Furthermore, such as Figures 4-6 As shown, the smoke pushing assembly 4 also includes a movable plate 43, and the pushing cylinder 41 is located at the upper left of the movable plate 43. A smoke pushing plate 59 is fixed to the front end of the pushing cylinder 41. The movable plate 43 is fixed to a movable guide rail 44 via a movable slide 47. The movable guide rail 44 has an I-beam structure, and the movable slide 47 can move left and right along the movable guide rail 44. A movable cylinder 48 is fixed below the movable plate 43. The movable cylinder 48 is used to drive the movable plate 43 from the heat sealing station to the pushing plate 40 at the pushing station. The movement direction of the movable cylinder 48 is perpendicular to the movement direction of the ejection cylinder 41. The movable cylinder 48 drives the movable plate 43 to move to the right, thereby completing the transition of the wrapped cigarette pack 32 from the heat-sealing process to the ejection station. Pushing brackets 49 are provided on the front and rear sides below the ejection plate 40. Baffles 46 are connected to both sides of the movable cylinder 48 via first fixing blocks 50. The baffles 46 are perpendicular to the movable plate 43. The cigarette pack opening 42 is located between the two baffles 45, and a second fixing block 45 is provided on the outer side of the baffles 46. The cigarette pack opening 42 ensures that the wrapped cigarette packs are more neatly arranged.

[0049] In the workplace, such as Figure 7As shown, the upstream process pushes 50 packs of cigarettes to a designated position. The cigarette-pushing cylinder 1, located to the left of the film-making device, pushes the stacked cigarettes forward and to the right. Because the film-making device is symmetrical, when the cigarette-pushing cylinder 1 pushes the cigarettes, the film contacts the right end of the cigarettes. As the cigarette-pushing cylinder 1 moves forward, the film adheres to the top, bottom, and right side of the cigarettes. When the cigarettes reach the heat-sealing station, the film is heat-sealed using a resistance thermometer. The sequence is as follows: the upper and lower heat-sealing irons on the left end heat-seal the film on the left side of the cigarettes. Simultaneously, the upper left heat-sealing iron 31 and the cutter 35 below the lower left heat-sealing iron on the left side cut the film during heat sealing. The cut is located at 1 / 2 of the film's heat-sealing width to ensure the continuity of the subsequent film. Then, the pressing cylinder 22 above the cigarettes drives the pressing support rod 30 below to expel air from inside the cigarettes. Next, the upper front end of the cigarettes... The heat-sealing cylinder 21 and the lower front heat-sealing cylinder start working, driving the corresponding soldering iron to ensure the front of the cigarette film is heat-sealed. Then, the pressing cylinder 22 above the cigarette starts working for the second time, driving the lower pressing support rod 30 to expel the air inside the cigarette. After the air is expelled, the upper rear heat-sealing cylinder 23 and the lower rear heat-sealing cylinder 28 at the rear of the cigarette start working, driving the corresponding soldering iron to achieve heat sealing of the film at the rear of the cigarette. At this time, all four sides of the cigarette have completed the heat-sealing process. The heat-sealing baffle below the cigarette is a movable plate 43. A movable cylinder 48 is connected below the movable plate 43. The movable cylinder 48 moves to move the heat-sealed cigarette on the movable plate 43 to the next process. The vertical push-out cylinder 41 works to push the heat-sealed cigarette to the cigarette sleeve 42 and enter the next process. When the heat-sealed cigarette reaches the next process, the movable plate 43 works to return to its original position.

[0050] The boxed film heat-sealing device provided in this invention completes the overall wrapping of cigarette strips through a wrapping assembly, a heat-sealing assembly, and a cigarette pushing assembly. It has the advantages of being simple and easy to use, fast, and efficient, and solves the problems of high labor costs, high labor intensity, low efficiency, inconsistent quality, and personal safety associated with manual wrapping.

[0051] Correspondingly, such as Figure 7 and Figure 8 As shown, the present invention also provides a method for heat-sealing a boxed film using the above-described apparatus, comprising the following steps:

[0052] Step S1: Wrap the cigarette pack with the wrapping assembly 12.

[0053] Specifically, the coating assembly 12 includes a smoke-pushing cylinder 1, a rear smoke-pushing plate 6, a smoke-receiving plate 7, a smoke-receiving cylinder 8, and a film mounting assembly 10. The rear smoke-pushing plate 6 and the smoke-receiving plate 7 are located perpendicularly to each other on both sides of the coating station. The rear smoke-pushing plate 6 and the smoke-receiving plate 7 are used to jointly push the stack of cigarettes to the coating station. The rear smoke-pushing plate 6 is also used to push the coated stack of cigarettes to the heat-sealing station and push the heat-sealed stack of cigarettes to the ejection station. The smoke-pushing cylinder 1 is located outside the rear smoke-pushing plate 6 and is used to drive the rear smoke-pushing plate 6 to perform a smoke-pushing action. The smoke-receiving cylinder 8 is located outside the smoke-receiving plate 7 and is used to drive the smoke-receiving plate 7 to perform a smoke-pushing action. The film mounting assembly 10 is equipped with a film for wrapping the film above and below the stack of cigarettes.

[0054] The number of the thin film mounting components 10 is two, located above and below the coating station, respectively. Specifically, as shown... Figure 2 As shown, each of the film mounting assemblies 10 includes a rotatable film support 52, on which a transparent film 51 is placed. Clamping rods 58 for clamping the transparent film are provided on both sides of the film support 52. Two inclined gears 55 are provided on one side of the film support 52. The two gears 55 are connected by a toothed belt 54. The two gears are a driving gear and a driven gear, respectively. The driving gear is connected to a motor 53, and the driven gear is connected to the rotation shaft of the film support.

[0055] Furthermore, such as Figure 2 As shown, the coating assembly 12 also includes a front-end smoke pusher 57. The front-end smoke pusher 57 and the rear-end smoke pusher 6 are symmetrically located on both sides of the coating station. A front-end cylinder 56 is provided on the outer side of the front-end smoke pusher 57. The front-end cylinder is used to drive the front-end smoke pusher 57 to perform the smoke pushing action.

[0056] During operation, the wrapping assembly 12 is positioned above and below the cigarette pack. When the cigarette pack enters the wrapping station, the front cylinder 56 drives the front pusher plate 57 to move to the left. The transparent film 51 lies flat on the film support 52, and the clamping rods 58 on both sides lock the transparent film 51 vertically to prevent it from moving. The transparent film 51 is released by the motor 53 driving the gear 55 to rotate. The gear 55 drives the toothed belt 54, which in turn drives the film support 52 to rotate, thereby releasing the transparent film 51. The lower film assembly is the same as the upper film assembly and will be described again here. When the front pusher plate 57 moves to the left, the transparent film 51 adheres to the front end of the cigarette pack. As the front pusher plate 57 continues to move forward, the cigarette pack adheres to the film, and the cigarette pack enters the heat sealing process.

[0057] Step S2: Push the wrapped cigarette pack into the heat sealing assembly 3 to heat seal the cigarette pack using the heat sealing assembly.

[0058] The heat sealing assembly 3 includes a soldering iron cylinder assembly 5, a soldering iron assembly 9, and a pressing plate 11. The soldering iron assembly 9 is used to heat seal the left, top, and bottom of the cigarette stack, respectively. The soldering iron cylinder assembly 5 drives the corresponding soldering iron to move. The pressing plate 11 is set above the heat sealing station to expel air from the film.

[0059] Furthermore, such as Figure 3 As shown, the soldering iron cylinder assembly 5 includes an upper left-end heat-sealing cylinder 29 and a lower left-end heat-sealing cylinder for heat-sealing the left end of the coated cigarette 32, an upper rear-end heat-sealing cylinder 23 and a lower rear-end heat-sealing cylinder 28 for heat-sealing the rear end of the coated cigarette 32, and an upper front-end heat-sealing cylinder 21 and a lower front-end heat-sealing cylinder (not shown) for heat-sealing the front end of the coated cigarette. The upper left-end heat-sealing cylinder 29 is mounted on a first cylinder bracket 34, and the upper rear-end heat-sealing cylinder 23 is mounted on a second cylinder bracket 36. Above, the upper front heat-sealing cylinder 21 is mounted on the third cylinder bracket 37. The second cylinder bracket 36 and the third cylinder bracket are perpendicular to the first cylinder bracket 34, and the first cylinder bracket 34, the second cylinder bracket 36 and the third cylinder bracket 37 are all located above the heat-sealing station. The lower left heat-sealing cylinder, the lower rear heat-sealing cylinder 28 and the lower front heat-sealing cylinder (not shown) are fixed on the support plate 26, which is used to support the coated cigarette pack.

[0060] Furthermore, such as Figure 3 As shown, the soldering iron assembly 9 includes an upper left heat-sealing soldering iron 31, a rear upper heat-sealing soldering iron 25, a rear lower heat-sealing soldering iron 27, a front lower heat-sealing soldering iron, a lower left heat-sealing soldering iron, and a front upper heat-sealing soldering iron. The upper left heat-sealing soldering iron 31 is located at the front end of the upper left heat-sealing cylinder 29. The rear upper heat-sealing soldering iron 25 is located at the front end of the upper rear heat-sealing cylinder 23. The rear lower heat-sealing soldering iron 27 is located at the front end of the lower rear heat-sealing cylinder 28. The front lower heat-sealing soldering iron is located at the front end of the lower front heat-sealing cylinder. The lower left heat-sealing soldering iron is located at the front end of the lower left heat-sealing cylinder. The front upper heat-sealing soldering iron is located at the front end of the upper front heat-sealing cylinder. Cutters 35 are fixed to the upper left heat-sealing iron 31, the upper rear heat-sealing iron 25, the lower rear heat-sealing iron 27, the lower front heat-sealing iron, the lower left heat-sealing iron, and the upper front heat-sealing iron, respectively. The upper left heat-sealing cylinder 29 is used to drive the upper left heat-sealing iron 31 to move downward to heat-seal the coated cigarette strip 32. The cutter 35 is used to cut the film on the coated cigarette strip 32 after heat sealing.

[0061] Furthermore, such as Figure 3 As shown, the heat-sealing assembly 3 further includes a fourth cylinder bracket 24, on which a pressing cylinder 22 is fixed. The fourth cylinder bracket 24 is located at the right end of the heat-sealing station and is parallel to the first cylinder bracket 34. Furthermore, the first cylinder bracket 34, the second cylinder bracket 36, the third cylinder bracket 37, and the fourth cylinder bracket 24 are located on the same plane. A pressing support rod 30 is fixed to the front end of the pressing cylinder 22, and a pressing plate 33 is disposed below the pressing support rod 30. The pressing cylinder 22 is used to drive the pressing plate 33 through the pressing support rod 30 to squeeze out the gas in the coated cigarette strip. The pressing plate 33 is fixed to the pressing support rod 30 by a nut.

[0062] During operation, the heat-sealing assembly 3 completes the heat-sealing process of the coated cigarette pack 32. Specifically, when the coated cigarette pack 32 enters the designated position, the upper left heat-sealing cylinder 29 drives the upper left heat-sealing soldering iron 31 downward to complete the heat-sealing of the coated cigarette pack 32. The cutter 35 cuts at the middle half of the heat-sealed area to cut the film on the coated cigarette pack 32. At this time, the upper rear heat-sealing cylinder 23 and the lower rear heat-sealing cylinder 28 move towards the middle of the coated cigarette pack 32 to complete the heat-sealing of the rear end of the coated cigarette pack 32. After the coated cigarette pack 32 completes the rear heat-sealing process, the pressing cylinder 22 works, and the lower pressing plate 33 starts working, squeezing out the gas in the coated cigarette pack 32. After the air in the coated cigarette pack 32 is squeezed out, the upper front heat-sealing cylinder 21 starts working. The front heat-sealing process is consistent with the rear process and has a symmetrical structure, so it will not be described in detail here.

[0063] Step S3: Use the cigarette pusher 4 to push the heat-sealed cigarette pack into the cigarette pack opening.

[0064] The cigarette pushing assembly 4 includes a pushing cylinder 41 and a cigarette pack opening 42. The pushing cylinder 41 is perpendicular to the cigarette pushing cylinder 1, and the pushing cylinder 41 and the cigarette receiving cylinder 8 are located on both sides of the cigarette pushing cylinder 1. The cigarette pack opening 42 is located at the very end of the pushing station. The pushing cylinder 41 is used to move forward to the cigarette pack opening 42 after the cigarette pack has been heat-sealed.

[0065] Furthermore, such as Figures 4-6As shown, the cigarette pushing assembly 4 also includes a movable plate 43, and the pushing cylinder 41 is located on the upper left of the movable plate 43. The front end of the pushing cylinder 41 is fixed with a cigarette pushing plate 59. The movable plate 43 is fixed on the movable guide rail 44 by a movable slide 47. The movable guide rail 44 has an I-shaped structure, and the movable slide 47 can move left and right along the movable guide rail 44. A movable cylinder 48 is fixed below the movable plate 43. The movable cylinder 48 is used to drive the movable plate 43 from the heat sealing station to the pushing plate 40 of the pushing station. The movement direction of the movable cylinder 48 is perpendicular to the movement direction of the pushing cylinder 41. The front and rear sides below the pushing plate 40 are provided with cigarette pushing brackets 49. The two sides of the movable cylinder 48 are respectively connected to baffles 46 by first fixing blocks 50. The baffles 46 are perpendicular to the movable plate 43. The cigarette sleeve opening 42 is arranged between the two baffles 45. A second fixing block 45 is arranged on the outside of the baffles 46.

[0066] During operation, after the cigarette pack completes the entire heat-sealing process, the movable cylinder 48 starts working, driving the movable plate 43 to move to the right, thereby completing the transition of the coated cigarette pack 32 from the heat-sealing process to the ejection station, and the coated cigarette pack 32 reaches the designated position. Figure 4 When the arrow indicates the position, the ejector cylinder 41 starts working, pushing the wrapped cigarette strip 32 to the cigarette sleeve opening 42, thus completing all the heat sealing processes.

[0067] The boxed film heat-sealing method provided in this invention completes the overall wrapping of cigarette packs through a wrapping assembly, a heat-sealing assembly, and a cigarette pushing assembly. It has the advantages of being simple and easy to use, fast, and efficient, and solves the problems of high labor costs, high work intensity, low efficiency, inconsistent quality, and personal safety associated with manual wrapping.

[0068] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0069] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. The scope of this disclosure is defined by the appended claims.

Claims

1. A carton film heat sealing method using a carton film heat sealing apparatus, characterized by, The box film heat sealing device comprises a mounting bracket and a film wrapping assembly, a heat sealing assembly and a cigarette pushing assembly arranged on the mounting bracket, wherein the film wrapping assembly is located on the left side of the heat sealing assembly, and the cigarette pushing assembly is located on the right side of the heat sealing assembly, and wherein: The film wrapping assembly comprises a cigarette pushing cylinder, a rear end cigarette pushing plate, a cigarette receiving plate, a cigarette receiving cylinder and a film mounting assembly, the rear end cigarette pushing plate and the cigarette receiving plate are vertically arranged on the two sides of the film wrapping station, and the rear end cigarette pushing plate and the cigarette receiving plate are used to jointly push the cigarette stack to the film wrapping station, the rear end cigarette pushing plate is also used to push the completed film wrapped cigarette stack to the heat sealing station and push the completed heat sealed cigarette stack to the pushing out station, the cigarette pushing cylinder is arranged outside the rear end cigarette pushing plate and is used to drive the rear end cigarette pushing plate to perform the cigarette pushing action, the cigarette receiving cylinder is arranged outside the cigarette receiving plate and is used to drive the cigarette receiving plate to perform the cigarette pushing action, the film mounting assembly is provided with a film and is used to wrap the film above and below the cigarette stack respectively, and the number of the film mounting assemblies is two and they are arranged above and below the film wrapping station respectively; The heat sealing assembly comprises an iron cylinder assembly and an iron assembly, the iron assembly is used to heat seal the left side, the upper side and the lower side of the cigarette stack respectively, the iron cylinder assembly drives the corresponding iron to move, the iron assembly comprises a left upper heat sealing iron, a rear upper heat sealing iron, a rear lower heat sealing iron, a front lower heat sealing iron, a left lower heat sealing iron and a front upper heat sealing iron, a cutter is fixed on each of the left upper heat sealing iron, the rear upper heat sealing iron, the rear lower heat sealing iron, the front lower heat sealing iron, the left lower heat sealing iron and the front upper heat sealing iron, the iron cylinder assembly comprises an upper left end heat sealing cylinder and a lower left end heat sealing cylinder for heat sealing the left end of the film wrapped cigarette, an upper rear end heat sealing cylinder and a lower rear end heat sealing cylinder for heat sealing the rear end of the film wrapped cigarette, and an upper front end heat sealing cylinder and a lower front end heat sealing cylinder for heat sealing the front end of the film wrapped cigarette, and the heat sealing assembly further comprises a pressing cylinder located at the right end of the heat sealing station, a pressing support rod is fixed on the front end of the pressing cylinder, a pressing plate is arranged below the pressing support rod, and the pressing cylinder is used to drive the pressing plate to extrude the gas in the film wrapped cigarette through extrusion; The cigarette pushing assembly comprises a pushing out cylinder and a cigarette sleeve, the pushing out cylinder is perpendicular to the cigarette pushing cylinder, and the pushing out cylinder and the cigarette receiving cylinder are respectively arranged on the two sides of the cigarette pushing cylinder, the cigarette sleeve is located at the last end of the pushing out station, the pushing out cylinder is used to move the completed heat sealed cigarette to the cigarette sleeve, the cigarette pushing assembly further comprises a movable plate, the pushing out cylinder is located above the left side of the movable plate, a movable cylinder is fixed below the movable plate, the movable cylinder is used to drive the movable plate to move from the heat sealing station to the pushing out plate of the pushing out station, and the movement direction of the movable cylinder is perpendicular to the movement direction of the pushing out cylinder. The box film heat sealing method is: the upstream process pushes the to-be-wrapped cigarette to the wrapping work station, the cigarette pushing cylinder located to the left of the film mounting assembly pushes the stacked cigarette strips to the right front, because the film mounting assembly is symmetrical up and down, when the cigarette pushing cylinder pushes the cigarette, the film contacts the right end of the cigarette, and as the cigarette pushing cylinder advances forward, the film is attached to the upper, lower and right side of the cigarette; when the cigarette reaches the heat sealing station, the upper left heat sealing iron and the lower left heat sealing iron act to heat seal the film on the left side of the cigarette, and the cutters fixed on the upper left heat sealing iron and the lower left heat sealing iron cut the film at the same time, and the cutting position is located at 1 / 2 of the film heat sealing width; then, the upper compression cylinder drives the lower compression support rod to work in turn to exhaust the air inside the cigarette; then, the front lower heat sealing iron and the front upper heat sealing iron located in front of the cigarette work to ensure the heat sealing of the film in front of the cigarette, and the cutters fixed on the front lower heat sealing iron and the front upper heat sealing iron cut the film at the same time, and the cutting position is located at 1 / 2 of the film heat sealing width, then the upper compression cylinder drives the lower compression support rod to work again to exhaust the air inside the cigarette; after the air is exhausted, the rear upper heat sealing iron and the rear lower heat sealing iron behind the cigarette start to work to realize the heat sealing of the film behind the cigarette, and the cutters fixed on the rear upper heat sealing iron and the rear lower heat sealing iron cut the film at the same time, and the cutting position is located at 1 / 2 of the film heat sealing width; then, the movable cylinder acts to drive the heat-sealed cigarette on the movable plate to the next process, and the push-out cylinder in the vertical position works to push the heat-sealed cigarette to the cigarette sleeve, and enters the next process; when the heat-sealed cigarette reaches the next process, the movable plate acts to return to the original position.

2. The carton film heat sealing method employing a carton film heat sealing apparatus according to claim 1, characterized by, Each of the film mounting assemblies comprises a rotatable film support, a transparent film is placed on the film support, clamping rods for clamping the transparent film are arranged on both sides of the film support, two inclined gears are arranged on one side of the film support, the two gears are connected through a toothed belt, and the two gears are a driving gear and a driven gear, wherein the driving gear is connected with a motor, and the driven gear is connected with a rotating shaft of the film support.

3. The carton film heat sealing method employing a carton film heat sealing apparatus according to claim 1, characterized by, The film wrapping assembly further comprises a front end cigarette pushing plate, the front end cigarette pushing plate and the rear end cigarette pushing plate are symmetrically located on both sides of the wrapping work station, a front end cylinder is arranged on the outer side of the front end cigarette pushing plate, and the front end cylinder is used to drive the front end cigarette pushing plate to perform a cigarette pushing action.

4. The carton film heat sealing method employing a carton film heat sealing apparatus according to claim 1, characterized by, The upper left end heat sealing cylinder is arranged on the first cylinder support, the upper rear end heat sealing cylinder is arranged on the second cylinder support, the upper front end heat sealing cylinder is arranged on the third cylinder support, the second cylinder support and the third cylinder support are perpendicular to the first cylinder support, and the first cylinder support, the second cylinder support and the third cylinder support are all located above the heat sealing station; the lower left end heat sealing cylinder, the lower rear end heat sealing cylinder and the lower front end heat sealing cylinder are fixed on the support plate, and the support plate is used for supporting the film-wrapped cigarette.

5. The carton film heat sealing method employing a carton film heat sealing apparatus according to claim 4, characterized by, The left upper heat sealing iron is arranged at the front end of the upper left end heat sealing cylinder, the rear upper heat sealing iron is arranged at the front end of the upper rear end heat sealing cylinder, the rear lower heat sealing iron is arranged at the front end of the lower rear end heat sealing cylinder, the front lower heat sealing iron is arranged at the front end of the lower front end heat sealing cylinder, the left lower heat sealing iron is arranged at the front end of the lower left end heat sealing cylinder, and the front upper heat sealing iron is arranged at the front end of the upper front end heat sealing cylinder.

6. The carton film heat sealing method employing a carton film heat sealing apparatus according to claim 4, characterized by, The heat sealing assembly further comprises a fourth cylinder support, the pressing cylinder is fixed on the fourth cylinder support, the fourth cylinder support is located at the right end of the heat sealing station and is parallel to the first cylinder support, and the first cylinder support, the second cylinder support, the third cylinder support and the fourth cylinder support are located on the same plane.

7. The carton film heat sealing method employing a carton film heat sealing apparatus according to claim 1, characterized by, The front end of the pushing-out cylinder is fixed with a cigarette pushing plate; the movable plate is fixed on the movable guide rail through a movable sliding seat, the movable guide rail is in an I-shaped structure, and the movable sliding seat can move leftward and rightward along the movable guide rail; the front and rear sides below the pushing-out plate are provided with cigarette pushing supports; the two sides of the movable cylinder are respectively connected with baffle plates through first fixing blocks, the baffle plates are perpendicular to the movable plate, the cigarette sleeve opening is arranged between the two baffle plates, and second fixing blocks are arranged outside the baffle plates.

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