• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    APPARATUS AND METHOD FOR THE COMBINATION OF TOBACCO LEAVES. The apparatus for combining tobacco sheets (3, 4) comprises a first rod for carrying a first spool (30) of tobacco sheet (3) and a second rod for carrying a second spool (40) of tobacco sheet ( 4). The apparatus also comprises a splicing unit (2) for combining an end portion of the tobacco sheet of the first spool (30) with an initial portion of the tobacco sheet of the second spool. The splicing unit comprises a cutting device (20) for cutting the tobacco leaves so as to provide complementary cuts for the tobacco leaves (3) of the first spool and the second spool (40), a dispensing device (23 ) to deliver water to at least one of the tobacco leaves (3,4) and a combination device (24) for applying force to the tobacco leaves, producing a spliced tobacco leaf.
    公开号:BR112016016385B1
    申请号:R112016016385-0
    申请日:2015-05-13
    公开日:2021-04-20
    发明作者:Pierre-Yves Gindrat；Alessandro Metrangolo
    申请人:Philip Morris Products S.A.；
    IPC主号:
    专利说明:

    [0001] The invention relates to an apparatus and method for combining tobacco leaves, especially for use in the manufacture of smoking articles.
    [0002] In smoking articles with a heat source, where tobacco is evaporated rather than burned, a tobacco plug can be manufactured from tobacco leaf. This sheet material is heavy and the size of a reel is limited. Therefore, at high production speed, a new coil has to be loaded in a few minutes, or even more often. This is a time-consuming process, which can reduce production speed. Also, some processing steps on a tobacco sheet processing line do not allow conventional methods to join the two subsequent tobacco sheets. For example, binding material such as glue can influence the taste of the final product, while embossing or stapling is not effective or adds more material to the sheets; often to a point where, for example, a taper or crimp of the combined sheet material will be difficult or impossible.
    [0003] Thus, there is a need for an apparatus and method for a reliable binding of tobacco leaves.
    [0004] According to one aspect of the present invention, an apparatus for combining tobacco leaves is provided. The apparatus comprises a first rod for carrying a first spool of tobacco sheet and a second rod for carrying a second spool of tobacco sheet. The apparatus further comprises a splicing unit for combining an end portion of the tobacco sheet from the first spool with an initial portion of the tobacco sheet from the second spool. The splicing unit comprises a cutting device for cutting the tobacco sheets so as to provide complementary cuts for the tobacco sheets from the first and second bobbins. The splicing unit comprises a dispensing device for applying water to at least one of the tobacco sheets and further comprises a combination device for applying force to the tobacco sheets, producing a spliced tobacco sheet.
    [0005] By providing two rods, a second bobbin with a tobacco sheet can be provided before a first bobbin with tobacco sheet comes to an end. Furthermore, the tobacco sheets can be securely bonded together while the tobacco sheet is continuously fed to a processing line, for example, in a crimping unit or a column forming device. This is especially favorable in processing lines with high production speed, for example, in tobacco column crimping lines, where coil replacement needs to be carried out at high frequency and the processing line should not be slowed down.
    [0006] Cutting tobacco sheets provides a defined final portion of a previous tobacco sheet and defines an initial portion of a subsequent tobacco sheet that is to be combined to provide a continuous ongoing tobacco sheet. Thus, the lateral extensions of a region, with which tobacco leaves are combined, are also defined and can be limited in size, which can reduce waste if overlapping areas are removed.
    [0007] Cutting can be performed on the tobacco leaves subsequently. Preferably, cutting is carried out on both tobacco leaves simultaneously. For the cutting process, the sheets can be placed side by side or they can be superimposed on each other. Preferably, the tobacco sheets are aligned, placed on top of each other centrally along a central longitudinal axis of the tobacco sheets. The cut provides complementary cuts that provide clearly defined contact areas where the two tobacco leaves can come into contact with each other and can be joined together. It also supports a good connection between the tobacco leaves. Cutting can also be performed at an angle. Hence, a cutting face on a tobacco sheet can be enlarged, thus supporting the additional connection of the tobacco sheets. Furthermore, through slanted cuts, the tobacco sheets can overlap each other without adding any thickness or any substantial thickness to the combined sheets in the overlapping region of the tobacco sheets. Preferably, the two tobacco sheets overlap only on their cut faces.
    [0008] The addition of water to at least one of the tobacco leaves moistens and softens the tobacco leaf material. Although the tobacco sheet material may have a certain tack in itself, this tack can be improved with the addition of water. Preferably, the water is added to the cut face only, preferably to only one tobacco sheet. Thus, the added water can support the tobacco leaf blending process in the leaf contact area without excess water, which can negatively affect a connection.
    [0009] The force applied posteriorly to the tobacco leaves, at least in the overlapping region, provides a strong connection between the two tobacco leaves. The combining device can act on the combined tobacco sheet while the sheet is stationary or while it is still moving along a direction of movement. A combination device can, for example, include a stationary press or, for example, press rollers. The amount of force applied is adapted to provide a good connection, however, preferably without grinding or substantially grinding the tobacco leaves in the overlap region.
    [00010] With the apparatus according to the invention, a strong connection can be provided without additives or additional material that might influence the taste. Furthermore, a fitting can be provided with no or reduced effect on processes after splicing in a tobacco leaf processing line. These subsequent processes, for example, can be a crimping or subsequent column forming process. With the apparatus according to the invention, a processing line can be operated continuously at high speed with constant ongoing quality of the product to be manufactured. Furthermore, any waste material possibly produced can be kept to a minimum.
    [00011] Sheet coated tobacco is a form of reconstituted tobacco that is formed from a paste, including tobacco particles, fiber particles, aerosol formers, flavors and binders. The tobacco particles may be in the form of a tobacco powder, having a particle size preferably on the order of between about 30-80 microns or about 100-250 microns, depending on the thickness of the sheet and the gap. desired casting. The fiber particles can include materials from tobacco stalks, stalks or other tobacco plant material and other cellulosic fibers such as wood fibers with a low lignin content. Fiber particles can be selected based on the desire to produce sufficient tensile strength in the cast sheet against a low inclusion rate, for example, a rate between approximately 2-15%. Alternatively, or in addition, fibers such as vegetable fibers can be used with the aforementioned fibers or as an alternative thereto, including hemp and bamboo.
    [00012] Aerosol formers can be added to the paste that forms the coated sheet tobacco. Functionally, the aerosol former must be able to vaporize within the temperature range in which the sheet coated tobacco is intended to be used in the tobacco product and facilitate the transport of nicotine and/or flavorings in an aerosol when the aerosol former is is heated above its vaporization temperature. The aerosol former is preferably chosen based on its ability to remain chemically stable and essentially stationary in sheet coated tobacco at or around room temperature, but being able to evaporate at a higher temperature, for example , between 40-450 °C.
    [00013] As used herein, the term aerosol refers to a colloid comprising solid or liquid particles and a gas phase. An aerosol can be a solid aerosol made up of solid particles and a gas phase or a liquid aerosol made up of liquid particles and a gas phase. An aerosol can comprise solid and liquid particles in a gas phase. As used here, both gas and vapor are considered to be gaseous.
    [00014] Preferably, the aerosol former is polar and is capable of functioning as a humectant, which can help maintain moisture within a desirable range in coated sheet tobacco.
    [00015] Aerosol formers can be selected from polyols, glycol ethers, polyol esters, esters and fatty acids and may comprise one or more of the following compounds: glycerin, erythritol, 1,3-butylene glycol, tetraethylene glycol, triethylene glycol, triethyl citrate, propylene carbonate, ethyl laurate, triacetin, meso-erythritol, a diacetin mixture, a diethyl suberate, triethyl citrate, benzyl benzoate, benzyl phenyl acetate, ethyl vanylate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene glycol.
    [00016] One or more aerosol formers can be combined to take advantage of one or more properties of the combined aerosol formers. For example, triacetin can be combined with glycerin and water to harness the ability of triacetin to impart the active components and wetting properties of glycerin.
    [00017] According to an aspect of the apparatus according to the invention, the cutting device comprises a cutting edge which is arranged at a cutting angle with respect to a support surface of the splicing unit. This makes it possible to cut the tobacco leaves at an angle to the plane occupied by the tobacco leaf. Tobacco leaves can be overlaid with their cut faces. If the cut faces exactly overlap each other, the thickness of the overlapping tobacco sheets is not greater than the thickness of a single tobacco sheet. If the tobacco sheets are superimposed on each other with the cut faces only partially cut, the thickness of the spliced tobacco sheet will still be less than the thickness of two tobacco sheets arranged on top of each other. By not limiting the overlap on the cut faces exactly, an area of overlap can be improved without doubling the thickness of the spliced tobacco sheet.
    [00018] Furthermore, by including a cutting angle under which tobacco leaves are cut, a cutting face on a tobacco sheet can be enlarged compared to a straight cut perpendicular to the plane occupied by the tobacco sheet. Aligning the two cut tobacco sheets so that the two cut faces are flush against each other widens the area of contact between the two tobacco sheets and allows for a splicing process. This is especially favorable if the overlapping tobacco leaves, although not tightly spliced, are moved, for example, in the combination device.
    [00019] Preferably, the tobacco sheet is arranged horizontally and is guided along the support surface of the splicing unit.
    [00020] In some preferred embodiments of the apparatus according to the invention, the cutting angle is in the range between about 20 degrees and about 50 degrees, preferably in a range between about 25 degrees and about 40 degrees, for example , 30 degrees. Such cutting angles are convenient to be cut, for example, by a cutting knife. They also provide large cut faces, which allow for a large area of overlap, while still allowing to maintain the thickness of the spliced tobacco sheet, preferably substantially corresponding to the thickness of a single tobacco sheet.
    [00021] According to another aspect of the apparatus according to the invention, the combination device is capable of applying a pressure greater than about 200 Newton, preferably greater than about 250 Newton on the tobacco leaves. The forces at these intervals, applied to the two overlapping tobacco sheets, provide stable connections between the tobacco sheets without damaging the sheets or without chipping or substantially chipping the tobacco sheets of the overlapping region. It becomes apparent to a person skilled in the art that a minimum applied force may also be dependent on a speed of the tobacco sheet to be spliced and therefore can be adapted to the speed of the splicing process. The combining device, for example, can be embodied as one or two rollers through which the combined tobacco leaves are passed. Through the rollers, a blending can be performed while the blended tobacco sheet is further moved to a processing direction. Furthermore, with rollers, shear forces during the blending process can be minimized or eliminated.
    [00022] As yet another aspect of the apparatus according to the invention, the apparatus further comprises a coil support comprising the first and second rod, wherein the first and second rod in the coil support are movable, so that the positions of the first and second rod are interchangeable with each other. The rods can be movably arranged on the spool support, or they can be fixedly arranged on the spool support. In the latter case, the spool holder is mobile, for example swivelable, so that the second spool can be positioned in the previous position of the first spool and vice versa. Therefore, tobacco sheet can be fed through the splicing unit after being spliced at the same angle. Furthermore, the first reel can be replaced while the supply of the tobacco sheet is still ongoing. However, later on, the tobacco sheet from a new reel, replacing the first reel, can be put in position for splicing while the supply is still in progress. The bobbin holder can also support a repeatability of the bobbin replacement process, allowing the supply of the new tobacco sheet (to be spliced to the tobacco sheet in use) in an identical manner. For example, a feeding direction of the new tobacco leaf can be kept the same and also the speed of the splicing process can be kept identical. Furthermore, if a loading position of a new spool is always identical, a loading of new spools can be automated or supported, for example, by grippers and elevators, removing a used spool and lifting a new spool to be loaded in the coil.
    [00023] Although the apparatus is described providing two rods for the two reels, the reel holder may also be provided with one or more additional rods for one or several other reels of tobacco leaf. Although other interchangeable mechanisms for the rods are feasible, the positions of the plurality of rods are preferably brought into position with one another by rotating the spool holder or rotating the rods in the spool holder, respectively.
    [00024] The apparatus according to the invention may also comprise a sensor for detecting a near end of the coil. A respective signal can be sent to a control unit which then starts the splicing process.
    [00025] According to another aspect of the apparatus according to the invention, the apparatus comprises a drying unit for drying the spliced tobacco sheet. Preferably, drying is provided at least in the region of overlap or in the region where water has been applied to the tobacco leaves. Drying can support a splicing process by speeding up the process of removing water that has been applied to the tobacco leaf before joining the leaves. Preferably, a drying unit comprises a heater, for example based on hot air or on infrared heating.
    [00026] According to another aspect of the apparatus according to the invention, the apparatus further comprises a damping unit arranged downstream of the splicing unit, the damping unit stores a quantity of spliced tobacco sheet. A dampening unit can compensate for a change in tobacco leaf transport speed. This change in transport speed can be caused in the processing line on the side that initially supplies the tobacco sheet, in the splicing unit, or further downstream, for example, in a crimping or column forming process. The tobacco sheet stored in the dampening unit compensates, for example, for a change in speed if the supply of the tobacco sheet has to be stopped or slowed down to carry out the splicing process.
    [00027] Tobacco sheet overlapping regions may not meet the specifications of the tobacco sheet material to be used in a product such as a tobacco plug in a smoking article. Thus, a portion of the column that constitutes an overlapping region (i.e. a connection of the two joined sheets) can be rejected and removed from further manufacturing of the product. This can be done, for example, by providing a reject further downstream in the tobacco sheet processing line, for example at a location after the column is formed and where it is cut into individual tobacco segments. The identification of overlapping regions can be done by appropriate control or sensing means such as, for example, optical detection systems. It is possible, for example, to detect and store a position of an overlapping region on the tobacco leaf in a control unit. This could be, for example, the position where the connection is formed, for example in the splicing unit. A portion of the tobacco sheet containing the overlap region that has moved a distance from the splicing unit to the column cut position is removed.
    [00028] As another aspect of the present invention, a method for combining tobacco sheets is provided. The method comprises the steps of providing a first tobacco sheet, providing a second tobacco sheet, and aligning and cutting the first and second tobacco sheet so as to provide the first and second tobacco sheet with complementary cuts. The method further comprises the steps of distributing water to at least the first or second tobacco sheet and aligning the complementary cuts of the first and second tobacco sheet so that the complementary cuts are disposed on top of each other. Additionally, the method comprises the step of applying pressure to the first and second tobacco sheet in a cutting area, thereby combining the first and second tobacco sheet and forming a spliced tobacco sheet.
    [00029] According to an aspect of the method according to the invention, the step of cutting the first and second tobacco sheet comprises cutting the tobacco sheets at a cutting angle in a range between about 20 degrees and about 50 degrees , preferably in a range between about 25 degrees and about 40 degrees, for example at a 30 degree angle of cut.
    [00030] Several aspects and advantages of the method have been described with respect to the apparatus according to the invention. Therefore, these will not be repeated.
    [00031] According to another aspect of the method according to the invention, the method further comprises the step of superimposing the first and second tobacco leaf by more than 4 millimeters, preferably more than 6 millimeters, for example, 8 millimeters before perform the pressure application step. Preferably, this overlap is limited to the cut area which is the partial or total overlap of the complementary cuts. Therefore, the thickness of the sheets of the two tobacco sheets does not become greater or substantially greater than the thickness of one tobacco sheet and is less than the thickness of both tobacco sheets superimposed on each other in a section outside the area. of cutting.
    [00032] According to another aspect of the method according to the invention, the water distribution step comprises applying water only to a lower situated tobacco sheet, preferably only on a cut face of the lowermost tobacco sheet. The amount of water applied can be kept to a minimum and can be limited where it is needed to form the connection. Water can also be applied using gravitational force. Furthermore, water applied to a tobacco leaf disposed on the bottom does not tend to run down the leaf or run off the leaf.
    [00033] Preferably, the tobacco leaves are processed and spliced by supplying the tobacco leaves while depositing one another. Cutting, watering and combining can thus be carried out without the need to rearrange either of the two tobacco leaves. In some such embodiments, after cutting, a final portion of the cut residues from the first tobacco sheet is removed and an initial portion of the cut residues from the second tobacco sheet is removed before carrying out the step of applying pressure. After cutting the two overlapping tobacco leaves, a final portion of 'to-be-replaced' tobacco leaf residues and an initial portion of 'new' tobacco leaf residues are cut off. Removing these trimmed residue portions facilitates the application of force on the two cutting areas of the final and initial portion of the two tobacco leaves to be joined. Furthermore, by removing the waste portions, the start and end portions can be automatically arranged side by side, without requiring any additional alignment.
    [00034] As yet another aspect of the method according to the invention, the method further comprises the steps of changing the position of a second spool with the second tobacco sheet to a position of the first spool with the first tobacco sheet and vice versa. versa, after combining the first and second tobacco sheet, replacing the first spool with another spool and providing a tobacco sheet from the other spool to combine with the second tobacco sheet. Preferably, the change of positions is carried out in the same direction, preferably by rotating the coils.
    [00035] According to another aspect of the method according to the invention, the method further comprises the step of introducing the combined tobacco sheet into a crimping device for crimping the spliced tobacco sheet.
    [00036] Preferably, the apparatus and method according to the invention are used in the manufacture of smoking articles, such as smoking articles comprising a heat source and a tobacco plug, in which tobacco is evaporated rather than burned .
    [00037] It becomes apparent to a person skilled in the art that an overlap and a minimum applied force may also be dependent on a speed with which the blended tobacco sheet is proceeded and therefore on a speed of the splicing process.
    [00038] The invention will be further described with reference to embodiments, which are illustrated by means of the accompanying drawings, in which
    [00039] Figure 1 shows a modality of the splicing process;
    [00040] Figures 2 to 4 show the steps of the splicing process with the tobacco leaves aligned (Figure 2); applying water (Figure 3) and spliced tobacco leaves (Figure 4);
    [00041] Figure 5 shows an embodiment of the apparatus including a coil support and damping unit.
    [00042] In Figure 1 a first and a second tobacco sheet 3,4 are provided from respective spools 30,40 to a splicing unit 2. The first tobacco sheet 4 is in use and is passing in a substantially in-line direction. straight through splicing unit 2. This is then transported to tobacco leaf processing units further downstream (not shown). These processing units can be, for example, a crimping unit or a column forming unit. Before tobacco sheet 4 on spool 40 comes to an end, tobacco sheet 3 of second spool 30 is guided through guide pulley 22 and supplied to splicing unit 2 (hereinafter tobacco sheet 4 is in use ). Both tobacco leaves 3,4 are arranged on top of each other and aligned on a support surface 21 of the splicing unit. Then, they are cut at a cutting angle α by a cutting knife 20. By cutting, a clearly defined final portion of the first tobacco sheet 3 and a clearly defined initial portion of the second tobacco sheet 4 are provided. final residues and portions of initial residues can be removed after cutting tobacco leaves 3,4. While cutting does not necessarily need to be done with the tobacco leaves aligned, the splicing process does. As can be seen in Figures 2 to 4, the tobacco leaves 3,4 that have been cut are then aligned above each other, with their cut faces 42,32 overlapping each other. Although the cutting direction in Figures 2 to 4 is reversed with respect to the cutting direction of the cutting knife 20 of Figure 1, the splicing process is the same. The cutting angle α is, in both figures, about 30 degrees.
    [00043] With an applicator unit 23, water is applied to the lowermost tobacco sheet 4 (the tobacco sheet 3 in Figure 1 due to different cutting direction) and only on the cutting face 42, as shown in Figure 3 By applying a thin layer of water 230 to the tobacco sheet, the water can soften the material of the tobacco sheets 3,4 at least in the area of the cut faces 32,42, to support good interconnection of the sheets 3,4 in the area. overlay 35. However, the amount of water is small enough not to disintegrate the tobacco leaves, which can complicate or prevent a seam from forming.
    [00044] Then, said overlying and moistened tobacco sheets 3,4 are guided through the pressing rollers 24. The sheets are compressed by passing between the pressing rollers, which firmly fix the two cut faces 42,32 of the sheets of tobacco 3.4 to each other. A short but firm connection 430 is formed as indicated in Figure 4. To support the joint formation, a heating unit 25, for example a hot air source or a heat radiating source, is disposed downstream, adjacent to the nip rollers 24. Through the heat, the connection is quickly dried, so that the spliced tobacco sheet 43 can continue to be supplied to a further processing unit arranged downstream. Since splicing additives are used and since, depending on the size of the overlap area 35, there is no significant thickening or thinning of the spliced sheet, a spliced tobacco sheet can be used entirely, including fitting 430. However, the overlapping area 35 with the connection 430 can at a later stage also be removed to ensure identical product specifications.
    [00045] Through the splicing process according to the invention, splicing the tobacco leaves 3,4 can be carried out, quickly and safely, so that a tobacco leaf treatment line can be continuously operated, preferably at a constant high speed of, for example, up to 200 meters per second. To continue to support a high speed of continuous operation, a splicing process can be further automated by providing an automatic coil changer.
    [00046] In Figure 5 a rotating bobbin holder 1 was arranged upstream of the splicing unit 2 for splicing the two tobacco sheets 3,4. The bobbin holder 1 is provided with two bobbins 30,40 carrying the two tobacco sheets 3,4. Tobacco sheet 3 is continuously supplied to and through splicing unit 2 of bobbin 30.
    [00047] The first spool 30 is almost exhausted and has been rotated counterclockwise (indicated by the arrow) by the spool holder away from the splicing unit 2. With the same rotational movement, the second spool 40 has been moved further near the splicing unit 4. The tobacco sheet 4 of the second bobbin 40 is guided through guide roller 22 to the splicing unit, where splicing can be performed. After cutting in the splicing unit, the first cut tobacco leaf 3 can then be removed together with the spool 30 from the spool holder 1. This can be replaced with a new spool. Once coil 40 has reached its end, the process can be started again.
    [00048] By this process a new bobbin is supplied and prepared so that the tobacco sheet in the new bobbin is spliced with the tobacco sheet in use, while the tobacco sheet is continuously supplied to the tobacco processing line.
    [00049] Downstream of the splicing unit 2, an accelerating unit is arranged, in the form of two accelerating rollers 5. The tobacco sheet which is passed through the splicing unit 2 can be accelerated or retarded by the accelerating unit 5 The tobacco sheet can be continuously accelerated by passing between the two acceleration rollers 5 to ensure a continuous tobacco sheet speed. Preferably, for the splicing process, the tobacco sheet can be decelerated or stopped by the accelerating rollers 5. After a splicing process, the spliced tobacco sheet can be accelerated again to a process speed. A damping unit 6 is further disposed downstream of the accelerating unit 5. The damping unit 6 is a series of idler pulleys, where the tobacco sheet is guided around and forms tobacco sheet loops. Some of the idler pulleys are movably arranged to widen or shorten a tobacco leaf loop in order to be able to supply more tobacco leaf material in a downstream direction, even when a supply from the splicing unit 2 unit or a coil 30.40 is stopped or shortened.
    [00050] Downstream of the dampening unit 6, an extraction unit 7 pulls the tobacco sheet out of the dampening unit, to pass the tobacco sheet, preferably at a constant speed, through further processing units of the tobacco sheets, arranged downstream.
    [00051] The bobbin support is preferably rotated so that a new tobacco sheet can be provided from above. This simplifies the positioning of the new tobacco sheet on the upper surface of the tobacco sheet in use, to be joined with it.
    [00052] An arrangement of mechanical ballerina and pulley rollers 10.11 is provided on the spool holder 1. They are arranged beside each of the respective spools 30.40. Tobacco sheets 30,40 are oriented on rollers 10, 11, before being supplied to the splicing unit. By providing the mechanical ballerinas and pulleys 10,11, a controlled orientation of the tobacco sheet can be obtained, as well as a constant narrowing of the tobacco sheet. This is especially favorable for tobacco sheet that tends to split or break under irregular or large tearing forces or pulling force. Especially, the rollers compensate for varying tensile forces by rotating the bobbins on the bobbin holder.
    [00053] The apparatus and process automate the feeding of tobacco leaf into a tobacco leaf treatment line. This not only allows the supply of a new bobbin while keeping the tobacco sheet being continuously supplied to the tobacco processing line. This also allows for splicing the two tobacco sheets while the tobacco sheet can be continuously supplied to the tobacco processing line. Therefore, the production speed of a tobacco column crimping line, for example, can be kept at a constant high level.
    权利要求:
    Claims (15)
    [0001]
    1. Apparatus for combining tobacco leaves (3, 4), the apparatus comprising: - a first rod for transporting a first spool (30) of tobacco leaf (3) and a second rod for transporting a second spool (40) of tobacco sheet (4); - a splicing unit (2) for combining an end portion of the tobacco sheet (3) of the first spool (30) to an initial part of the tobacco sheet (4) of the second spool (40), characterized in that the splicing unit (2) comprises - a cutting device (20) for cutting the tobacco leaves (3, 4), as well as providing complementary cuts to the tobacco leaves of the first spool (30) and of the second spool (40), - a delivery device (23) for distributing water to at least one of the tobacco leaves, and - a combination device (24) for applying force to the tobacco leaves (3, 4) thus producing a tobacco leaf amended (43).
    [0002]
    2. Apparatus according to claim 1, characterized in that the cutting device (20) comprises a cutting edge, which is arranged at a cutting angle (a) with respect to a support surface (21 ) of the splicing unit (2).
    [0003]
    3. Apparatus according to claim 2, characterized in that the cutting angle (a) is in the range between about 20 degrees and about 50 degrees, preferably in a range between about 25 degrees and about 40 degrees, for example 30 degrees.
    [0004]
    4. Apparatus according to any one of claims 1 to 3, characterized in that the combination device (24) is capable of applying a pressure greater than about 200 Newton, preferably greater than about 250 Newton, on tobacco leaves (3, 4).
    [0005]
    5. Apparatus according to any one of claims 1 to 4, characterized in that it further comprises a coil support (1) comprising the first and second rod, wherein the first and second rod in the coil support (1) are movable, so that the positions of the first and second rods are interchangeable with each other.
    [0006]
    6. Apparatus according to any one of claims 1 to 5, characterized in that it further comprises a drying unit for drying the spliced tobacco sheet (43).
    [0007]
    7. Apparatus according to any one of claims 1 to 6, characterized in that it further comprises a damping unit (6) arranged downstream of the splicing unit (2), the damping unit (6) being to store a quantity of spliced tobacco leaf (43).
    [0008]
    8. Method for combining tobacco leaves (3, 4), the method comprising the steps of: - providing a first tobacco leaf (3) and providing a second tobacco leaf (4); - aligning and cutting the first and second tobacco sheet (3, 4) so as to provide the first and second tobacco sheet with complementary cuts; characterized by: - distributing water on at least the first or second tobacco leaf (3, 4), - aligning the complementary cuts of the first and second tobacco leaf (3, 4), so that the complementary cuts abut against each other. the others and - applying pressure to the first and second tobacco sheet in a cutting area, thus combining the first and second tobacco sheet (3, 4) and forming a spliced tobacco sheet (43).
    [0009]
    9. Method according to claim 8, characterized in that the step of cutting the first and second tobacco leaf (3, 4) comprises cutting the tobacco leaves (3, 4) at a cutting angle ( a) in a range of between about 20 degrees and about 50 degrees, preferably in a range of between about 25 degrees and about 40 degrees, for example at a cutting angle of 30 degrees.
    [0010]
    10. Method according to claim 8 or 9, characterized in that it further comprises the step of superimposing the first and second tobacco leaf (3, 4) by more than 4 millimeters, preferably more than 6 millimeters, per example, 8 millimeters, before performing the pressure application step.
    [0011]
    11. Method according to any one of claims 8 to 10, characterized in that the water distribution step comprises applying water only to a tobacco leaf situated further down, preferably only on a cut face (42) of the tobacco leaf located further down.
    [0012]
    12. Method according to any one of claims 8 to 11, characterized in that it further comprises the step of removing the final cut residue portion from the first tobacco sheet (3) and the removal of the cut residue portion starting the second tobacco leaf (4) before carrying out the pressure application step.
    [0013]
    13. Method according to any one of claims 8 to 12, characterized in that it further comprises the steps of: - changing the position of a second spool (40) with the second tobacco leaf (4) to a position of the first bobbin (30) with the first tobacco sheet (3) and vice versa, after combining the first and second tobacco sheet (3, 4); - replacing the first spool (30) with another spool; and - supplying a tobacco sheet from the other reel to combine with the second tobacco sheet (4).
    [0014]
    14. Method according to any one of claims 8 to 13, characterized in that it further comprises the step of introducing the combined tobacco sheet into a crimping device for crimping the spliced tobacco sheet (43).
    [0015]
    15. Use of the apparatus as defined in any one of claims 1 to 7, and of the method as defined in any one of claims 8 to 14, characterized in that it is for the manufacture of smoking articles.
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112016016385B1|2021-04-20|apparatus and method for combining tobacco leaves
    RU2709925C2|2019-12-23|Method of supplying continuous sheet of aerosol-forming substrate from roll and aerosol-forming article
    KR20180026666A|2018-03-13|Method for manufacturing an induction-heatable aerosol-forming substrate
    JP6774942B2|2020-10-28|Methods and equipment for manufacturing aerosol-generating semi-finished products
    RU2672640C2|2018-11-16|Reinforced web of reconstituted tobacco
    CN108208922A|2018-06-29|Double-deck tubule of the tobacco industry and the method for manufacturing such tubule
    KR20070069211A|2007-07-02|Process for producing tow band and apparatus for producing tow band
    JP2008099692A|2008-05-01|Apparatus and method for treatment of filter material for cigarette filter, etc
    KR20200010222A|2020-01-30|Apparatus and method for withdrawing the distal end of a sheet of material wound in bobbins
    RU2659003C2|2018-06-26|Method and device for application of adhesive to tubular bushings for manufacturing of paper logs
    US20220053819A1|2022-02-24|Apparatus and method for producing a rod of aerosol-generating material
    KR20210024494A|2021-03-05|Casting apparatus and method for producing cast web of alkaloid-containing material
    JP6752600B2|2020-09-09|How to make pocket tissue
    JP2020511952A|2020-04-23|Method for producing bobbins containing alkaloid-containing materials
    KR20210024477A|2021-03-05|Method and apparatus for casting a web of alkaloid-containing material
    US196892A|1877-11-06|Improvement in apparatus for preparing surgical bandages
    KR20190124248A|2019-11-04|Apparatus and method for forming filter rods
    WO2018162514A1|2018-09-13|Apparatus and method for manufacturing rods of aerosol-forming substrate
    BR112017003100B1|2021-12-14|APPARATUS AND METHOD TO JOIN SUBSTANTIALLY FLAT CONTINUOUS MATERIAL
    WO2021121931A1|2021-06-24|Method to produce a sheet of material containing alkaloids
    同族专利:
    公开号 | 公开日
    WO2015173275A1|2015-11-19|
    PT2969871T|2017-03-23|
    EP2969871B1|2017-03-01|
    LT2969871T|2017-04-10|
    KR101679531B1|2016-11-24|
    RU2680706C2|2019-02-25|
    RU2015148608A|2017-05-15|
    EP2969871A1|2016-01-20|
    JP2016531544A|2016-10-13|
    CN105307517B|2016-12-21|
    CN105307517A|2016-02-03|
    DK2969871T3|2017-04-03|
    SI2969871T1|2017-05-31|
    US20160286852A1|2016-10-06|
    RS55827B1|2017-08-31|
    HUE032566T2|2017-09-28|
    KR20160003282A|2016-01-08|
    US9833016B2|2017-12-05|
    JP5977902B1|2016-08-24|
    ES2618837T3|2017-06-22|
    RU2015148608A3|2018-12-24|
    US10159275B2|2018-12-25|
    US20180064160A1|2018-03-08|
    PL2969871T3|2017-07-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB753965A|1953-09-08|1956-08-01|Gen Cigar Co|Improved process for the production of continuous tobacco sheet|
    US3061220A|1960-03-16|1962-10-30|Molins Machine Co Ltd|Web-splicing mechanism|
    US3749634A|1971-05-14|1973-07-31|Hauni Werke Koerber & Co Kg|Apparatus for splicing cigarette paper webs|
    IT982117B|1973-03-02|1974-10-21|Amf Sasib|METHOD AND AUTOMATIC DEVICE FOR FORMING EXTEMPORARY RESERVES OF A TAPE WHILE IT IS FEEDED TO A MACHINE USING UNINTERRUPTED AND CONTROLLED VOLTAGE|
    US3886031A|1974-06-10|1975-05-27|Compensating Tension Controls|Web lap splicer|
    US4485981A|1980-12-22|1984-12-04|British-American Tobacco Company Limited|Feeding web material|
    DE8434172U1|1984-11-22|1986-03-27|Hauni-Werke Körber & Co KG, 2050 Hamburg|Bobbin changing device|
    DE3863761D1|1987-11-12|1991-08-22|Tabac Fab Reunies Sa|METHOD AND MACHINE FOR JOINING PAPER STRIPS FOR THE CONTINUOUS FEEDING OF A MACHINE, ESPECIALLY FOR THE PRODUCTION OF CIGARETTES.|
    NL9200199A|1992-02-04|1993-09-01|Stork Contiweb|DEVICE AND METHOD FOR CONNECTING TWO MATERIAL COURSES.|
    US5405475A|1993-05-28|1995-04-11|Ward/Kraft|Method and apparatus for continuous manufacture of printed laminated stock from uncoated web|
    US5935371A|1997-05-19|1999-08-10|Eastman Kodak Company|Apparatus and method for joining webs|
    US6863945B2|2001-12-31|2005-03-08|Kimberly-Clark Worldwide, Inc.|Usable splice for a stabilized absorbent|
    DE10226148B4|2002-06-13|2011-11-17|Tetra Laval Holdings & Finance S.A.|Device for bonding two packaging material webs|
    ITFI20030301A1|2003-11-28|2005-05-29|Rent Srl|DOUBLE UNWIND UNIT FOR MATERIAL COILS IN|
    US6978816B1|2004-12-17|2005-12-27|The Procter & Gamble Company|Method and apparatus for splicing a web material|
    CN102090713B|2010-09-10|2013-01-02|龙岩烟草工业有限责任公司|Method for splicing bobbin paper of cigarette making machine|
    US9469494B2|2013-03-07|2016-10-18|Martin Automatic, Inc.|Apparatus and methods for forming a butt splice on a running web|JP6963499B2|2014-10-14|2021-11-10|フィリップ・モーリス・プロダクツ・ソシエテ・アノニム|Instruments and methods for joining substantially flat continuous materials|
    DE102017104011A1|2017-02-27|2018-08-30|Hauni Maschinenbau Gmbh|A tobacco processing machine for feeding a cigarette rod making machine and method of operating the same|
    DE102017118934A1|2017-07-03|2019-01-03|Weber Maschinenbau Gmbh Breidenbach|Providing web-shaped interleaf material at a cutting area|
    DE102017118930A1|2017-07-03|2019-01-03|Weber Maschinenbau Gmbh Breidenbach|Providing web-shaped interleaf material at a cutting area|
    DE102017118925A1|2017-07-03|2019-01-03|Weber Maschinenbau Gmbh Breidenbach|Providing web-shaped interleaf material at a cutting area|
    DE102017118927A1|2017-07-03|2019-01-03|Weber Maschinenbau Gmbh Breidenbach|Providing web-shaped interleaf material at a cutting area|
    DE102018108168A1|2018-04-06|2019-10-10|Manroland Goss Web Systems Gmbh|Preventing the fluttering of the adhesive banner in the foil print|
    CN109043646A|2018-07-04|2018-12-21|红云红河烟草有限责任公司|A kind of cigarette making and tipping machine of flake cigarette|
    IT201800009866A1|2018-10-29|2020-04-29|Montrade Spa|MACHINE FOR PROCESSING BAND MATERIAL IN A PACKAGING PROCESS OF A PLURALITY OF PRODUCTS|
    CN109179018B|2018-11-13|2020-07-21|河南中烟工业有限责任公司|Rolling device for glue-free splicing of paper tapes|
    EP3905895A1|2019-01-04|2021-11-10|British American TobaccoLimited|Apparatus and method for producing a rod of aerosol-generating material|
    CN111332845A|2020-04-09|2020-06-26|昆明鼎承启鑫科技有限公司|Sheet material splicing device suitable for different widths|
    法律状态:
    2020-03-03| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-02-23| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-04-20| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 13/05/2015, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    EP14168262.5|2014-05-14|
    EP14168262|2014-05-14|
    PCT/EP2015/060533|WO2015173275A1|2014-05-14|2015-05-13|Apparatus and method for combining tobacco sheets|
    [返回顶部]