[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

WO2019244003A1 - Method for processing a web of wrapping material used to make smoking articles - Google Patents

Method for processing a web of wrapping material used to make smoking articles Download PDF

Info

Publication number
WO2019244003A1
WO2019244003A1 PCT/IB2019/055049 IB2019055049W WO2019244003A1 WO 2019244003 A1 WO2019244003 A1 WO 2019244003A1 IB 2019055049 W IB2019055049 W IB 2019055049W WO 2019244003 A1 WO2019244003 A1 WO 2019244003A1
Authority
WO
WIPO (PCT)
Prior art keywords
web
wrapping material
mark
applying
machine
Prior art date
Application number
PCT/IB2019/055049
Other languages
French (fr)
Inventor
Fabrizio GANDOLFI
Luca CHIARABAGLIO
Giuliano Gamberini
Luca Federici
Original Assignee
G.D S.P.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by G.D S.P.A. filed Critical G.D S.P.A.
Priority to EP19758498.0A priority Critical patent/EP3806665A1/en
Publication of WO2019244003A1 publication Critical patent/WO2019244003A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/32—Separating, ordering, counting or examining cigarettes; Regulating the feeding of tobacco according to rod or cigarette condition
    • A24C5/322—Transporting cigarettes during manufacturing
    • A24C5/328—Controlling means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/005—Treatment of cigarette paper
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/14—Machines of the continuous-rod type
    • A24C5/20—Reels; Supports for bobbins; Other accessories
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/47—Attaching filters or mouthpieces to cigars or cigarettes, e.g. inserting filters into cigarettes or their mouthpieces
    • A24C5/471—Attaching filters or mouthpieces to cigars or cigarettes, e.g. inserting filters into cigarettes or their mouthpieces by means of a connecting band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/046—Sensing longitudinal register of web
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/32—Separating, ordering, counting or examining cigarettes; Regulating the feeding of tobacco according to rod or cigarette condition
    • A24C5/34—Examining cigarettes or the rod, e.g. for regulating the feeding of tobacco; Removing defective cigarettes
    • A24C5/3412—Examining cigarettes or the rod, e.g. for regulating the feeding of tobacco; Removing defective cigarettes by means of light, radiation or electrostatic fields
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/38—Machines combined with printing devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/1944—Wrapping or packing material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/54—Cigarette making

Definitions

  • This invention relates to a method and an apparatus for processing a web of wrapping material used to make smoking articles. More specifically, this invention relates to a method and an apparatus for making rod-shaped smoking articles.
  • rod-shaped articles is used herein to denote products such as, for example, cigarettes, cigars, cigarillos, electronic cigarettes and related semi-products but also semi-products (for example, filters and portions for releasing a substance to be inhaled). Background art
  • cigarette is used to denote any rod-shaped article comprising at least a filter, a cigarette segment designed to release an inhalable substance, and a connecting strip disposed in such a way as to connect the filter and the cigarette segment to each other.
  • the cigarette may be a traditional cigarette, where inhalation follows burning the free end of the cigarette segment, or it may be an electronic cigarette, where inhalation follows heating (without burning) the free end of the cigarette segment (specifically, with a carbon tip).
  • the cigarette segment may comprise traditional tobacco wrapped in paper or it may be an aerosol-generating element, that is,
  • the tobacco may be, for example, pre-treated, reconstituted or homogenized tobacco.
  • rod-shaped articles of the type mentioned above comprise a wrapper - of paper, for example - in which the articles are wrapped.
  • the machines which make the rod-shaped articles therefore, typically include rolls of wrapping material of various kinds which are unwound into continuous webs and then processed, if necessary, and used, for example, to make connecting strips for the cigarettes or coverings for the continuous rods of tobacco or filter material to make the filters or the cigarette segments.
  • Web processing may comprise applying features such as a commercial logo (by embossing), knurling on the paper (also by embossing) and, in the case of electronic cigarettes (with carbon tip) an inner layer of metallic material.
  • US6543457 discloses a cigarette making method in which a surface of a running paper web is provided with a pattern and a marker disposed near the pattern.
  • the method comprises detecting the marker (which can be detected more easily than the pattern) using sensors, so as to adjust the conveying speed of the paper web through a cutting unit for cutting the paper web, based on the detections performed.
  • the method described has one drawback, however. More specifically, the method described has the drawback of using both the pattern and the marker as a reference; since the pattern on the surface of the web may be incorrectly positioned (due to errors when it is applied), adjusting the cutting operation based (also) on the pattern may have a negative effect on the cutter, making cutting imprecise.
  • US2016120214 discloses a method for making cigarettes comprising a wrapping material which in turn comprises an additive used to control cigarette burning.
  • the method comprises detecting, with a sensor, one or more marks applied on the surface of the wrapping material which, after wrapping, is the surface that is visible to the user.
  • the marks are used to synchronize the cutting of the tobacco segment with the concentration profile of the additive on the wrapping material.
  • This method has several drawbacks: in particular, positioning errors may occur (during the step of applying the marks); these mark positioning errors lead to imprecise cutting of the tobacco segment and have a negative effect on subsequent processes.
  • the aim of this invention is to provide a method and an apparatus for processing a web of wrapping material used to make smoking articles to overcome the above mentioned drawbacks of the prior art.
  • this invention has for an aim to provide a method and an apparatus for processing a web of wrapping material where a mark can be positioned in a particularly precise and reliable manner using a manageably sized, easy to make system (which can be applied on newly made machines or retrofitted on existing machines). Further aims of the invention are to provide a web of wrapping material and a method and an apparatus for making smoking articles.
  • the method comprises a step of feeding the web of wrapping material.
  • the web advances by a predetermined quantity (i.e., length).
  • the predetermined quantity corresponds to a length of a stretch of web used to make a single cigarette.
  • the web is fed continuously.
  • the method comprises a step of making a feature (at least one) on the web.
  • the method comprises a step of applying a mark on a surface of the wrapping material.
  • a mark may be, for example, a notch made on the wrapping material in order to control subsequent operations.
  • buffers may be provided which involve temporarily stopping the feeding of the articles; it is therefore necessary to detect each article as it enters the machine (or machines), or after it has entered, so as to be able to program the subsequent operations. And it is the marks made on the articles that are used for the purpose of detecting the articles.
  • the steps of feeding, of making a feature (at least one) on the web and of applying a mark are repeated cyclically with a predetermined periodicity.
  • the method comprises a step of generating a synchronization signal.
  • the synchronization signal represents the periodicity.
  • the synchronization signal is generated by a timer. In an embodiment, the synchronization signal is generated at regular intervals. Using the timer, the duration of the regular time intervals can be set as a function of the required periodicity (for example, based on the size of the smoking articles to be made).
  • the mark is applied by means of a shaft controlled by the synchronization signal. That way, each mark is spaced from the next by a predetermined distance.
  • the marking shaft is configured to make each mark at a respective instant, determined by the synchronization signal; the time interval between the instants one mark and the next are made, governed by the synchronization signal, determines the distance (on the web) between that mark and the next.
  • controlled shaft or “shaft” is used to mean an actuator (for example, an electric motor) controlled by the control unit and connected to a movable element to drive it; that way, a given movement is measured (for example by an encoder or another sensor) and controlled by the control unit through the actuator, in such a way that a tool can be positioned precisely at an arbitrary point along its stroke.
  • actuator for example, an electric motor
  • the (at least one) feature on the web is controlled by the synchronization signal.
  • the processing shaft is configured to make each feature at a respective instant, determined by the synchronization signal; the time interval between the instants one feature and the next are made, governed by the synchronization signal, determines the distance (on the web) between that feature and the next. Further, if both the marking shaft and the processing shaft are controlled by the synchronization signal, that synchronization signal determines the distance (on the web) between each mark and each respective feature.
  • the synchronization signal which controls the position of the mark, it is possible to position the mark repeatably with a very high degree of precision both relative to the preceding and the following marks and relative to the other features made on the web (and also controlled by the synchronization signal.
  • the step of applying the mark is carried out on an inside surface of the wrapping material.
  • inside surface of the wrapping material is meant the surface which is intended to face the inside of the corresponding article when the article has been completed.
  • the outside surface is the surface opposite to the inside surface and intended to face the outside of the corresponding article when the article has been completed.
  • the step of applying the mark comprises a step of engraving (the wrapping material). In an embodiment, the step of applying the mark comprises a step of printing (the wrapping material). In an embodiment, the step of applying the mark comprises a step of perforating (the wrapping material). In an embodiment, the step of applying the mark comprises a step of tearing (the wrapping material). In an embodiment, the step of applying the mark comprises a step of applying an additional material (on the wrapping material). Preferably, the mark is applied on the inside surface of the wrapping material. In an embodiment, the step of applying the mark comprises a step of inkjet printing (on the wrapping material). In an embodiment, the step of applying the mark comprises a step of laser engraving (the wrapping material).
  • the step of making a feature (at least one) includes (a sub-step of) applying a logo.
  • the logo is applied on at least one surface of the wrapping material (preferably the outside surface).
  • the logo is applied by (a first step of) embossing the wrapping material.
  • Each logo thanks to the synchronization signal which governs its application, is spaced from the next by a predetermined distance.
  • the step of making a feature includes (a sub-step of) embossing a surface of the wrapping material to create a knurled portion.
  • first step of embossing is meant the process by which the logo feature is applied
  • second step of embossing is meant the process by which the knurled portion is made.
  • the (second) step of embossing is carried out both on the inside surface and on the outside surface of the wrapping material.
  • the knurled portion may have an aesthetic function; its function may also be to make it easier for the consumer to hold the cigarette.
  • the step of making a feature includes (a sub-step of) applying a metallic element made of (or comprising) a metallic material (preferably aluminium) on a surface of the wrapping material.
  • the metallic element made of (or comprising) a metallic material is applied preferably on the inside surface of the wrapping material.
  • Each metallic element is spaced from the next by a predetermined distance (thanks to the synchronization signal which governs its application).
  • the method comprises a step of controlling the step of processing the wrapping material and the step of applying the mark in such a way that the mark is at a predetermined position (that is, at a predetermined distance) from the logo.
  • the control is preferably performed as a function of the synchronization signal.
  • the method comprises the following steps (or sub-steps), in succession:
  • steps are controlled by the synchronization signal. This allows achieving a high degree of precision in synchronizing (or timing) the steps (or sub-steps).
  • This invention also relates to an apparatus for processing a web of wrapping material used to make smoking articles.
  • the apparatus comprises a feeding device.
  • the feeding device configured to feed the web of wrapping material (preferably continuously) to advance it by a predetermined quantity (that is, length) corresponding to a length of a stretch of web used to make a single article.
  • the apparatus comprises a processing shaft.
  • the processing shaft is configured to create a feature (at least one) on the web.
  • the apparatus comprises a marking shaft.
  • the marking shaft is configured to apply a mark on a surface of the wrapping material.
  • the apparatus comprises a device for generating a synchronization signal.
  • the processing shaft and the marking shaft are controlled as a function of the synchronization signal. That way, the mark is positioned precisely relative to the (at least one) feature made by the processing shaft and relative to the other marks.
  • the apparatus comprises a control unit connected to the device for generating the synchronization signal, to the processing shaft and to the marking shaft.
  • the control unit is configured to drive (control) the processing shaft and the marking shaft as a function of the synchronization signal.
  • the control unit is preferably a central control unit of the line which comprises the apparatus. In other embodiments, the control unit is dedicated to the single apparatus (or machine).
  • the processing shaft comprises a first embossing device, configured to apply a logo on a surface of the wrapping material.
  • the processing shaft comprises a second embossing device, configured to make a knurled portion on a surface of the wrapping material.
  • the marking shaft comprises an inkjet printing device.
  • the marking shaft comprises a laser engraving device.
  • the apparatus comprises a carbon tip positioning shaft.
  • the carbon tip is positioned as a function of the synchronization signal.
  • the apparatus comprises an illuminator configured to illuminate the mark on the wrapping material.
  • the illuminator may be coupled to a mark detecting device.
  • This disclosure also provides a web of wrapping material used to make smoking articles.
  • the web comprises a logo.
  • the logo is preferably positioned on the outside surface of the wrapping material.
  • the web comprises a mark.
  • the mark is applied preferably on the inside surface of the wrapping material.
  • the web comprises a knurled portion.
  • the knurled portion is preferably made on the outside surface of the wrapping material.
  • the web comprises a metallic element, made of metallic material (or including a metallic material).
  • the metallic material is preferably aluminium. This element is positioned preferably on the inside surface of the wrapping material.
  • This disclosure also provides a method for making smoking articles.
  • the method for making smoking articles comprises a step of feeding a web of wrapping material to a first machine.
  • the web is advanced by a predetermined quantity corresponding to a length of a stretch of web used to make an article.
  • the method for making smoking articles comprises a step of making a feature (at least one) on the web of wrapping material.
  • the feature is made by the first machine, specifically by a processing shaft of the first machine.
  • the feature may be of the type described above with reference to the method for processing a web of wrapping material.
  • the method for making smoking articles comprises a step of applying a mark on a surface of the wrapping material (preferably the inside surface).
  • the mark is applied by the first machine, specifically by a marking shaft of the first machine.
  • the mark may be applied, for example, by inkjet printing or by laser engraving.
  • the method comprises a step of transferring the wrapping material from the first machine to a second machine.
  • the method comprises a step of cutting the web. By cutting, the web is divided into a plurality of connecting strips.
  • the method comprises a step of rolling each connecting strip of the plurality around a respective group of segments of the tobacco industry in such a way as to make a (continuous) rod.
  • the step of rolling is preferably performed in the second machine.
  • Each group of segments comprises at least one filter segment and one tobacco segment.
  • Each group of segments may also comprise a carbon tip.
  • the step of rolling is performed in such a way that the surface of the strip with the mark on it faces the inside of the rod.
  • the method comprises a step of cutting the web to divide it into a plurality of smoking articles.
  • the step of cutting is preferably performed by a cutting tool disposed in the second machine.
  • the method preferably comprises a step of detecting a position of the mark in the second machine.
  • the step of detecting is preferably performed by an optical sensor (for example, a photocell).
  • the step of detecting the mark is performed before the web is cut into connecting strips.
  • the steps of rolling and cutting are controlled as a function of the position of the mark detected.
  • the method preferably comprises a plurality of steps of detecting the position of the mark in the second machine (at respective points in the second machine).
  • the steps of rolling and cutting are controlled as a function of the position of the mark detected in one or more of the plurality of steps of detecting.
  • one step of detecting of the plurality of steps of detecting is performed before the step of cutting the web.
  • the step of cutting the web is controlled as a function of the position of the mark detected.
  • the step of cutting the web is performed by the second machine (that is, by a cutting device of the second machine).
  • a first step of detecting the mark controls the step of cutting the web
  • a second step of detecting the mark controls the step of rolling
  • a third step of detecting the mark controls the step of cutting the rod.
  • the steps of feeding, of making a feature and of applying the mark are repeated cyclically with periodicity.
  • the method further comprises a step of generating a synchronization signal representing the periodicity.
  • the mark is applied by means of a shaft (a marking shaft) controlled by the synchronization signal.
  • the process by which the feature is made on the web in the first machine is controlled by the synchronization signal.
  • the step of cutting the web is performed by the first machine (that is, by a cutting device of the first machine) as a function of the synchronization signal.
  • the method comprises a step of temporarily storing a stretch of the web of wrapping material in a buffer.
  • the buffer is preferably disposed downstream of the first machine and upstream of the second machine.
  • the step of transferring from the first machine to the second machine comprises the step of storing in the buffer.
  • the length of the stretch of web of wrapping material present in the buffer is variable over time.
  • This disclosure also provides a line for making smoking articles.
  • the line comprises at least a first machine and a second machine.
  • the line also comprises a buffer (between the first and the second machine).
  • the first machine is an apparatus for processing a web of wrapping material according to one or more aspects of this disclosure.
  • the second machine comprises a cutting device for cutting the web of wrapping material and configured to divide the web into a plurality of connecting strips.
  • the cutting device for cutting the web of wrapping material configured to divide the web into a plurality of connecting strips, might be built into the first machine or at an intermediate position, between the first ad the second machine.
  • the second machine comprises a rolling device for rolling the connecting strips.
  • the rolling device is configured to roll each connecting strip around a respective group of segments of the tobacco industry in order to make a rod.
  • the connecting strips are rolled in such a way that the surface of each strip with the mark on it faces the inside of the rod.
  • the second machine comprises a cutting device for cutting the rod and configured to divide the rod into a plurality of smoking articles.
  • the second machine further comprises at least one device for detecting the position of the mark.
  • the detecting device is preferably an optical detector (for example, a photocell).
  • the web cutting device, the rolling device and the rod cutting device are controlled as a function of the position of the mark.
  • FIG. 1 schematically illustrates a line for making smoking articles according to this disclosure
  • FIG. 2 illustrates an inside surface of a web of wrapping material according to this disclosure
  • FIG. 3 illustrates an outside surface of a web of wrapping material according to this disclosure
  • FIG. 4 illustrates a smoking article according to this disclosure.
  • the numeral 100 denotes a line for making smoking articles 1 .
  • the line 100 comprises a feeding device 103 configured to feed a web of wrapping material 2.
  • the feeding device 103 feeds the web 2 by unwinding it from a roll 3.
  • the line 100 comprises a processing shaft 104 configured to create at least one feature on the web 2.
  • the at least one feature on the web 2 may comprise a logo 3 on an outside surface 2B of the web of wrapping material 2.
  • the at least one feature on the web 2 may comprise a metallic element 4 applied on an inside surface 2A of the web of wrapping material 2 (the surface intended to face the inside of the respective smoking article 1 ).
  • the metallic element is applied preferably longitudinally relative to a direction of feeding and advancing the web 2. In an embodiment, the metallic element is applied transversely to a direction of feeding and advancing the web 2.
  • the at least one feature on the web 2 may comprise embossing a surface of the web of wrapping material 2 to make a knurled portion 1 1 .
  • the line 100 comprises a marking shaft 107 configured to apply a mark 6 on a surface of the wrapping material 2.
  • the mark 6 is applied on the inside surface 2A of the wrapping material.
  • the line 100 comprises a first detecting device 105, located downstream of the processing shaft 103.
  • the detecting device 105 is configured to detect that the at least one feature made by the processing shaft 103 is applied correctly.
  • the detecting device 105 is configured to detect at least one property of the at least one feature.
  • the line 100 comprises a control unit 106, configured to generate a synchronization signal (representing a periodicity, or cyclicity of the processes by which the features and marks are made).
  • the control unit 106 drives the marking shaft 107 and the at least one processing shaft 104 as a function of the synchronization signal.
  • the web 2 is fed continuously while the mark 6 is being applied, and application is controlled by the synchronization signal as a function of the feeding of the web 2.
  • control unit 106 is also configured to determine whether the feature meets at least one criterion of acceptability.
  • the feeding device 103, the processing shaft 104, the marking shaft 107 and the first processing device 1 05 form part of a first machine (also referred to as apparatus for processing a web of wrapping material).
  • the line 100 comprises a buffer B.
  • the buffer B is of the "pendulum” or movable roller type.
  • the line 100 comprises conveyors 101 , 102 configured to feed a succession of groups.
  • Each group comprises a filter segment 8 and a cigarette segment 9.
  • Each group may also comprise a carbon tip 10.
  • the groups are conveyed transversely to the web 2.
  • the line 100 comprises a cutting device 108.
  • the cutting device 108 is located downstream of the marking shaft 107.
  • the cutting device 108 is configured to cut the web 2 into a plurality of connecting strips 7.
  • the line 100 comprises a rolling bed 109 configured to receive the succession of groups and the plurality of connecting strips 7 and to roll the plurality of connecting strips 7 round the respective groups to make a rod.
  • the line 100 comprises a second detecting device 1 1 0, connected to the control unit 106, and disposed downstream of the rolling bed 109.
  • the second detecting device 1 10 is configured to identify the articles 1 which are defective and to activate a procedure for these articles 1 .
  • the line 100 comprises a rejection device 1 1 1 configured to reject the defective articles 1 .
  • the mark 6 is applied before the at least one feature is created on the web 2. More specifically, the wrapping material 2 unwound continuously from the roll 3 already has the marks 6 on it.
  • a method for processing a web of wrapping material to make smoking articles comprising the following steps:
  • step of creating a feature includes applying a logo to a surface of the web of wrapping material.
  • step of creating a feature includes applying a metallic element on a surface of the web of wrapping material.
  • step of creating a feature includes embossing a surface of the web of wrapping material in order to make a knurled portion.
  • A7.2 The method according to paragraph A7 or A7.1 , comprising a step of applying a mark on a surface of the web of wrapping material, wherein the step of applying the mark follows the sub-step of applying the logo and precedes the sub-step of embossing.
  • An apparatus for processing a web of wrapping material to make smoking articles comprising:
  • a feeding device configured to feed the web of wrapping material to advance it by a predetermined quantity corresponding to a length of a stretch of web used to make a single article
  • processing shaft configured to create at least one feature on the web.
  • a method for making smoking articles comprising the following steps:
  • step of creating a feature includes embossing a surface of the web of wrapping material in order to make a knurled portion.
  • a line for making smoking articles comprising:
  • a first machine which comprises:
  • a feeding device configured to feed the web of wrapping material to advance it by a predetermined quantity corresponding to a length of a stretch of web used to make a single article
  • processing shaft configured to create at least one feature on the web
  • a marking shaft configured to apply a mark on a surface of the wrapping material
  • a cutting device for cutting the web of wrapping material and configured to divide the web into a plurality of connecting strips
  • a rolling bed configured to roll each connecting strips around a respective group of segments of the tobacco industry to make a rod in such a way that the surface of the strip with the mark on it faces the inside of the rod;
  • a cutting device for cutting the rod and configured to divide the rod into a plurality of smoking articles.
  • the second machine further comprises at least one device for detecting the position of the mark, wherein one or more between the web cutting device, the rolling device and the rod cutting device are controlled as a function of the position of the mark.
  • the line according to paragraph D or D1 further comprising a buffer, configured to temporarily store a stretch of the web of wrapping material, the length of the stretch of the web of wrapping material in the buffer being variable over time.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

A method for processing a web of wrapping material (2) to make smoking articles (1), comprises the following steps, repeated cyclically with periodicity: feeding the web of wrapping material (2) to advance it by a predetermined quantity corresponding to a length of a stretch of web used 5 to make a single cigarette; creating a feature on the web; applying a mark (6) on a surface of the wrapping material (2); generating a synchronization signal representing the periodicity.

Description

METHOD FOR PROCESSING A WEB OF WRAPPING MATERIAL USED TO MAKE SMOKING ARTICLES
DESCRIPTION
Technical field
This invention relates to a method and an apparatus for processing a web of wrapping material used to make smoking articles. More specifically, this invention relates to a method and an apparatus for making rod-shaped smoking articles. The term "rod-shaped articles" is used herein to denote products such as, for example, cigarettes, cigars, cigarillos, electronic cigarettes and related semi-products but also semi-products (for example, filters and portions for releasing a substance to be inhaled). Background art
The term "cigarette" is used to denote any rod-shaped article comprising at least a filter, a cigarette segment designed to release an inhalable substance, and a connecting strip disposed in such a way as to connect the filter and the cigarette segment to each other. The cigarette may be a traditional cigarette, where inhalation follows burning the free end of the cigarette segment, or it may be an electronic cigarette, where inhalation follows heating (without burning) the free end of the cigarette segment (specifically, with a carbon tip).
The cigarette segment may comprise traditional tobacco wrapped in paper or it may be an aerosol-generating element, that is,
a product containing tobacco of the type suitable for heating but not burning (heat-not-burn).
In this case, the tobacco may be, for example, pre-treated, reconstituted or homogenized tobacco.
Typically, rod-shaped articles of the type mentioned above comprise a wrapper - of paper, for example - in which the articles are wrapped.
The machines which make the rod-shaped articles, therefore, typically include rolls of wrapping material of various kinds which are unwound into continuous webs and then processed, if necessary, and used, for example, to make connecting strips for the cigarettes or coverings for the continuous rods of tobacco or filter material to make the filters or the cigarette segments.
To meet the wide range of needs of manufacturers of rod-shaped articles, the webs of paper are often further processed before being used to make the article. Web processing may comprise applying features such as a commercial logo (by embossing), knurling on the paper (also by embossing) and, in the case of electronic cigarettes (with carbon tip) an inner layer of metallic material.
These features are normally applied at very high speeds: a very high level of precision is therefore required of the machine for application to be carried out correctly, at the right position, and to meet acceptability criteria. In many cases, the station where the features are applied are nevertheless subject to faults and malfunctioning which may lead to interruptions or irregularity which reflect negatively on the integrity and/or quality of the article.
Different methods for making rod-shaped smoking articles are known.
For example, US6543457 discloses a cigarette making method in which a surface of a running paper web is provided with a pattern and a marker disposed near the pattern. The method comprises detecting the marker (which can be detected more easily than the pattern) using sensors, so as to adjust the conveying speed of the paper web through a cutting unit for cutting the paper web, based on the detections performed.
The method described has one drawback, however. More specifically, the method described has the drawback of using both the pattern and the marker as a reference; since the pattern on the surface of the web may be incorrectly positioned (due to errors when it is applied), adjusting the cutting operation based (also) on the pattern may have a negative effect on the cutter, making cutting imprecise.
US2016120214 discloses a method for making cigarettes comprising a wrapping material which in turn comprises an additive used to control cigarette burning. The method comprises detecting, with a sensor, one or more marks applied on the surface of the wrapping material which, after wrapping, is the surface that is visible to the user. The marks are used to synchronize the cutting of the tobacco segment with the concentration profile of the additive on the wrapping material. This method has several drawbacks: in particular, positioning errors may occur (during the step of applying the marks); these mark positioning errors lead to imprecise cutting of the tobacco segment and have a negative effect on subsequent processes.
Aim of the invention
The aim of this invention is to provide a method and an apparatus for processing a web of wrapping material used to make smoking articles to overcome the above mentioned drawbacks of the prior art.
More specifically, this invention has for an aim to provide a method and an apparatus for processing a web of wrapping material where a mark can be positioned in a particularly precise and reliable manner using a manageably sized, easy to make system (which can be applied on newly made machines or retrofitted on existing machines). Further aims of the invention are to provide a web of wrapping material and a method and an apparatus for making smoking articles.
These aims are fully achieved by the method for processing a web of wrapping material forming the object of this invention and as characterized in the appended claims.
In an embodiment, the method comprises a step of feeding the web of wrapping material. In the step of feeding, the web advances by a predetermined quantity (i.e., length). The predetermined quantity corresponds to a length of a stretch of web used to make a single cigarette. Preferably, the web is fed continuously.
In an embodiment, the method comprises a step of making a feature (at least one) on the web. In an embodiment, the method comprises a step of applying a mark on a surface of the wrapping material. A mark may be, for example, a notch made on the wrapping material in order to control subsequent operations. In effect, in a line for the manufacturing of smoking articles, buffers may be provided which involve temporarily stopping the feeding of the articles; it is therefore necessary to detect each article as it enters the machine (or machines), or after it has entered, so as to be able to program the subsequent operations. And it is the marks made on the articles that are used for the purpose of detecting the articles.
The steps of feeding, of making a feature (at least one) on the web and of applying a mark are repeated cyclically with a predetermined periodicity.
In an embodiment, the method comprises a step of generating a synchronization signal. The synchronization signal represents the periodicity.
In an embodiment, the synchronization signal is generated by a timer. In an embodiment, the synchronization signal is generated at regular intervals. Using the timer, the duration of the regular time intervals can be set as a function of the required periodicity (for example, based on the size of the smoking articles to be made).
Preferably, the mark is applied by means of a shaft controlled by the synchronization signal. That way, each mark is spaced from the next by a predetermined distance. In effect, the marking shaft is configured to make each mark at a respective instant, determined by the synchronization signal; the time interval between the instants one mark and the next are made, governed by the synchronization signal, determines the distance (on the web) between that mark and the next.
The expression "controlled shaft" or "shaft" is used to mean an actuator (for example, an electric motor) controlled by the control unit and connected to a movable element to drive it; that way, a given movement is measured (for example by an encoder or another sensor) and controlled by the control unit through the actuator, in such a way that a tool can be positioned precisely at an arbitrary point along its stroke.
Preferably, the (at least one) feature on the web is controlled by the synchronization signal. In effect, the processing shaft is configured to make each feature at a respective instant, determined by the synchronization signal; the time interval between the instants one feature and the next are made, governed by the synchronization signal, determines the distance (on the web) between that feature and the next. Further, if both the marking shaft and the processing shaft are controlled by the synchronization signal, that synchronization signal determines the distance (on the web) between each mark and each respective feature.
Thanks to the synchronization signal which controls the position of the mark, it is possible to position the mark repeatably with a very high degree of precision both relative to the preceding and the following marks and relative to the other features made on the web (and also controlled by the synchronization signal.
In an embodiment, the step of applying the mark is carried out on an inside surface of the wrapping material. By inside surface of the wrapping material is meant the surface which is intended to face the inside of the corresponding article when the article has been completed. The outside surface, on the other hand, is the surface opposite to the inside surface and intended to face the outside of the corresponding article when the article has been completed.
In an embodiment, the step of applying the mark comprises a step of engraving (the wrapping material). In an embodiment, the step of applying the mark comprises a step of printing (the wrapping material). In an embodiment, the step of applying the mark comprises a step of perforating (the wrapping material). In an embodiment, the step of applying the mark comprises a step of tearing (the wrapping material). In an embodiment, the step of applying the mark comprises a step of applying an additional material (on the wrapping material). Preferably, the mark is applied on the inside surface of the wrapping material. In an embodiment, the step of applying the mark comprises a step of inkjet printing (on the wrapping material). In an embodiment, the step of applying the mark comprises a step of laser engraving (the wrapping material).
In an embodiment, the step of making a feature (at least one) includes (a sub-step of) applying a logo. The logo is applied on at least one surface of the wrapping material (preferably the outside surface). In an embodiment, the logo is applied by (a first step of) embossing the wrapping material. Each logo, thanks to the synchronization signal which governs its application, is spaced from the next by a predetermined distance.
In an embodiment, the step of making a feature (at least one) includes (a sub-step of) embossing a surface of the wrapping material to create a knurled portion. Hereinafter, by first step of embossing is meant the process by which the logo feature is applied, whilst by second step of embossing is meant the process by which the knurled portion is made. Preferably, the (second) step of embossing is carried out both on the inside surface and on the outside surface of the wrapping material. The knurled portion may have an aesthetic function; its function may also be to make it easier for the consumer to hold the cigarette.
In an embodiment, the step of making a feature (at least one) includes (a sub-step of) applying a metallic element made of (or comprising) a metallic material (preferably aluminium) on a surface of the wrapping material. The metallic element made of (or comprising) a metallic material is applied preferably on the inside surface of the wrapping material. Each metallic element is spaced from the next by a predetermined distance (thanks to the synchronization signal which governs its application).
In an embodiment, the method comprises a step of controlling the step of processing the wrapping material and the step of applying the mark in such a way that the mark is at a predetermined position (that is, at a predetermined distance) from the logo. The control is preferably performed as a function of the synchronization signal.
Preferably, the method comprises the following steps (or sub-steps), in succession:
- applying the logo;
- applying the mark;
- embossing to make the knurled portion;
- applying the metallic element.
These steps are controlled by the synchronization signal. This allows achieving a high degree of precision in synchronizing (or timing) the steps (or sub-steps).
This invention also relates to an apparatus for processing a web of wrapping material used to make smoking articles.
In an embodiment, the apparatus comprises a feeding device. The feeding device configured to feed the web of wrapping material (preferably continuously) to advance it by a predetermined quantity (that is, length) corresponding to a length of a stretch of web used to make a single article. In an embodiment, the apparatus comprises a processing shaft. The processing shaft is configured to create a feature (at least one) on the web. In an embodiment, the apparatus comprises a marking shaft. The marking shaft is configured to apply a mark on a surface of the wrapping material.
In an embodiment, the apparatus comprises a device for generating a synchronization signal. Preferably, the processing shaft and the marking shaft are controlled as a function of the synchronization signal. That way, the mark is positioned precisely relative to the (at least one) feature made by the processing shaft and relative to the other marks.
In an embodiment, the apparatus comprises a control unit connected to the device for generating the synchronization signal, to the processing shaft and to the marking shaft. The control unit is configured to drive (control) the processing shaft and the marking shaft as a function of the synchronization signal. The control unit is preferably a central control unit of the line which comprises the apparatus. In other embodiments, the control unit is dedicated to the single apparatus (or machine).
In an embodiment, the processing shaft comprises a first embossing device, configured to apply a logo on a surface of the wrapping material.
In an embodiment, the processing shaft comprises a second embossing device, configured to make a knurled portion on a surface of the wrapping material.
In an embodiment, the marking shaft comprises an inkjet printing device.
In an embodiment, the marking shaft comprises a laser engraving device.
In an embodiment, the apparatus comprises a carbon tip positioning shaft. The carbon tip is positioned as a function of the synchronization signal.
In an embodiment, the apparatus comprises an illuminator configured to illuminate the mark on the wrapping material. The illuminator may be coupled to a mark detecting device.
This disclosure also provides a web of wrapping material used to make smoking articles.
In an embodiment, the web comprises a logo. The logo is preferably positioned on the outside surface of the wrapping material.
In an embodiment, the web comprises a mark. The mark is applied preferably on the inside surface of the wrapping material.
In an embodiment, the web comprises a knurled portion. The knurled portion is preferably made on the outside surface of the wrapping material.
In an embodiment, the web comprises a metallic element, made of metallic material (or including a metallic material). The metallic material is preferably aluminium. This element is positioned preferably on the inside surface of the wrapping material.
This disclosure also provides a method for making smoking articles.
In an embodiment, the method for making smoking articles comprises a step of feeding a web of wrapping material to a first machine. The web is advanced by a predetermined quantity corresponding to a length of a stretch of web used to make an article.
In an embodiment, the method for making smoking articles comprises a step of making a feature (at least one) on the web of wrapping material. The feature is made by the first machine, specifically by a processing shaft of the first machine. The feature may be of the type described above with reference to the method for processing a web of wrapping material.
In an embodiment, the method for making smoking articles comprises a step of applying a mark on a surface of the wrapping material (preferably the inside surface). The mark is applied by the first machine, specifically by a marking shaft of the first machine. The mark may be applied, for example, by inkjet printing or by laser engraving.
In an embodiment, the method comprises a step of transferring the wrapping material from the first machine to a second machine.
In an embodiment, the method comprises a step of cutting the web. By cutting, the web is divided into a plurality of connecting strips.
In an embodiment, the method comprises a step of rolling each connecting strip of the plurality around a respective group of segments of the tobacco industry in such a way as to make a (continuous) rod. The step of rolling is preferably performed in the second machine. Each group of segments comprises at least one filter segment and one tobacco segment. Each group of segments may also comprise a carbon tip. The step of rolling is performed in such a way that the surface of the strip with the mark on it faces the inside of the rod.
In an embodiment, the method comprises a step of cutting the web to divide it into a plurality of smoking articles. The step of cutting is preferably performed by a cutting tool disposed in the second machine.
The method preferably comprises a step of detecting a position of the mark in the second machine. The step of detecting is preferably performed by an optical sensor (for example, a photocell).
Preferably, the step of detecting the mark is performed before the web is cut into connecting strips..
The steps of rolling and cutting are controlled as a function of the position of the mark detected.
In an embodiment, the method preferably comprises a plurality of steps of detecting the position of the mark in the second machine (at respective points in the second machine). The steps of rolling and cutting are controlled as a function of the position of the mark detected in one or more of the plurality of steps of detecting.
In an embodiment, one step of detecting of the plurality of steps of detecting is performed before the step of cutting the web. The step of cutting the web is controlled as a function of the position of the mark detected. In an embodiment, the step of cutting the web is performed by the second machine (that is, by a cutting device of the second machine).
For example, a first step of detecting the mark controls the step of cutting the web, a second step of detecting the mark controls the step of rolling and a third step of detecting the mark controls the step of cutting the rod.
The steps of feeding, of making a feature and of applying the mark are repeated cyclically with periodicity. In an embodiment, the method further comprises a step of generating a synchronization signal representing the periodicity. The mark is applied by means of a shaft (a marking shaft) controlled by the synchronization signal. In an embodiment, the process by which the feature is made on the web in the first machine is controlled by the synchronization signal.
In an embodiment, the step of cutting the web is performed by the first machine (that is, by a cutting device of the first machine) as a function of the synchronization signal.
In an embodiment, the method comprises a step of temporarily storing a stretch of the web of wrapping material in a buffer. The buffer is preferably disposed downstream of the first machine and upstream of the second machine. In an embodiment, the step of transferring from the first machine to the second machine comprises the step of storing in the buffer. In an embodiment, the length of the stretch of web of wrapping material present in the buffer is variable over time.
This disclosure also provides a line for making smoking articles.
The line comprises at least a first machine and a second machine. In an embodiment, the line also comprises a buffer (between the first and the second machine).
In an embodiment, the first machine is an apparatus for processing a web of wrapping material according to one or more aspects of this disclosure.
In an embodiment, the second machine comprises a cutting device for cutting the web of wrapping material and configured to divide the web into a plurality of connecting strips.
In an alternative embodiment, the cutting device for cutting the web of wrapping material, configured to divide the web into a plurality of connecting strips, might be built into the first machine or at an intermediate position, between the first ad the second machine.
In an embodiment, the second machine comprises a rolling device for rolling the connecting strips. The rolling device is configured to roll each connecting strip around a respective group of segments of the tobacco industry in order to make a rod. The connecting strips are rolled in such a way that the surface of each strip with the mark on it faces the inside of the rod.
In an embodiment, the second machine comprises a cutting device for cutting the rod and configured to divide the rod into a plurality of smoking articles.
The second machine further comprises at least one device for detecting the position of the mark. The detecting device is preferably an optical detector (for example, a photocell). The web cutting device, the rolling device and the rod cutting device are controlled as a function of the position of the mark.
Brief description of the drawings
The features of the invention will become more apparent from the following description of preferred, non-limiting embodiments of it, illustrated by way of example in the accompanying drawings, in which:
- Figure 1 schematically illustrates a line for making smoking articles according to this disclosure;
- Figure 2 illustrates an inside surface of a web of wrapping material according to this disclosure;
- Figure 3 illustrates an outside surface of a web of wrapping material according to this disclosure;
- Figure 4 illustrates a smoking article according to this disclosure.
Detailed description of preferred embodiments of the invention
With reference to the accompanying drawings, the numeral 100 denotes a line for making smoking articles 1 .
The line 100 comprises a feeding device 103 configured to feed a web of wrapping material 2. Preferably, the feeding device 103 feeds the web 2 by unwinding it from a roll 3.
The line 100 comprises a processing shaft 104 configured to create at least one feature on the web 2.
The at least one feature on the web 2 may comprise a logo 3 on an outside surface 2B of the web of wrapping material 2.
The at least one feature on the web 2 may comprise a metallic element 4 applied on an inside surface 2A of the web of wrapping material 2 (the surface intended to face the inside of the respective smoking article 1 ). The metallic element is applied preferably longitudinally relative to a direction of feeding and advancing the web 2. In an embodiment, the metallic element is applied transversely to a direction of feeding and advancing the web 2. The at least one feature on the web 2 may comprise embossing a surface of the web of wrapping material 2 to make a knurled portion 1 1 .
The line 100 comprises a marking shaft 107 configured to apply a mark 6 on a surface of the wrapping material 2. Preferably, the mark 6 is applied on the inside surface 2A of the wrapping material.
In an embodiment, the line 100 comprises a first detecting device 105, located downstream of the processing shaft 103. In an embodiment, the detecting device 105 is configured to detect that the at least one feature made by the processing shaft 103 is applied correctly. In an embodiment, the detecting device 105 is configured to detect at least one property of the at least one feature.
In an embodiment, the line 100 comprises a control unit 106, configured to generate a synchronization signal (representing a periodicity, or cyclicity of the processes by which the features and marks are made). The control unit 106 drives the marking shaft 107 and the at least one processing shaft 104 as a function of the synchronization signal. In an embodiment, the web 2 is fed continuously while the mark 6 is being applied, and application is controlled by the synchronization signal as a function of the feeding of the web 2.
In an embodiment, the control unit 106 is also configured to determine whether the feature meets at least one criterion of acceptability.
In an embodiment, the feeding device 103, the processing shaft 104, the marking shaft 107 and the first processing device 1 05 form part of a first machine (also referred to as apparatus for processing a web of wrapping material).
In an embodiment, the line 100 comprises a buffer B. The buffer B is of the "pendulum" or movable roller type.
The line 100 comprises conveyors 101 , 102 configured to feed a succession of groups. Each group comprises a filter segment 8 and a cigarette segment 9. Each group may also comprise a carbon tip 10. The groups are conveyed transversely to the web 2.
The line 100 comprises a cutting device 108. The cutting device 108 is located downstream of the marking shaft 107. The cutting device 108 is configured to cut the web 2 into a plurality of connecting strips 7.
The line 100 comprises a rolling bed 109 configured to receive the succession of groups and the plurality of connecting strips 7 and to roll the plurality of connecting strips 7 round the respective groups to make a rod. The line 100 comprises a second detecting device 1 1 0, connected to the control unit 106, and disposed downstream of the rolling bed 109. The second detecting device 1 10 is configured to identify the articles 1 which are defective and to activate a procedure for these articles 1 . In an embodiment, the line 100 comprises a rejection device 1 1 1 configured to reject the defective articles 1 .
In a possible embodiment not illustrated, the mark 6 is applied before the at least one feature is created on the web 2. More specifically, the wrapping material 2 unwound continuously from the roll 3 already has the marks 6 on it.
The following paragraphs, listed in alphanumeric order for reference, are non-limiting example modes of describing this invention.
A0. A method for processing a web of wrapping material to make smoking articles, comprising the following steps:
- feeding the web of wrapping material to advance it by a predetermined quantity corresponding to a length of a stretch of web used to make an article;
- creating a feature on the web of wrapping material.
A. The method according to paragraph A, comprising a step of applying a mark on a surface of the web of wrapping material.
A1 . The method according to paragraph A, wherein the steps of feeding the web of wrapping material, creating the feature on the web and applying the mark are repeated cyclically with periodicity and wherein the method comprises a step of generating a synchronization signal representing the periodicity.
A1 .1 . The method according to paragraph A1 , wherein the step of creating the feature on the web of wrapping material is controlled by the synchronization signal.
A1 .2. The method according to paragraph A1 or A1 .2, wherein the step of applying the mark is controlled by the synchronization signal.
A2. The method according to any one of paragraphs A to A1 .2, wherein the step of applying the mark is performed on an inside surface of the web of wrapping material which is intended to face the inside of the corresponding article when the article is finished.
A3. The method according to any one of paragraphs A to A2, wherein the step of applying the mark is accomplished by inkjet printing or laser engraving.
A4. The method according to any one of paragraphs A0 to A3, wherein the step of creating a feature includes applying a logo to a surface of the web of wrapping material.
A5. The method according to any one of paragraphs A0 to A4, wherein the step of creating a feature includes applying a metallic element on a surface of the web of wrapping material.
A6. The method according to any one of paragraphs A0 to A5, wherein the step of creating a feature includes embossing a surface of the web of wrapping material in order to make a knurled portion.
A7. The method according to any one of paragraphs A0 to A6, wherein the step of creating a feature includes the following sub-steps:
- applying a logo to a surface of the web of wrapping material;
- embossing a surface of the wrapping material to create a knurled portion;
- applying a metallic element to a surface of the web of wrapping material. A7.1 The method according to paragraph A7, wherein the sub-step of embossing precedes the sub-step of applying the metallic element.
A7.2. The method according to paragraph A7 or A7.1 , comprising a step of applying a mark on a surface of the web of wrapping material, wherein the step of applying the mark follows the sub-step of applying the logo and precedes the sub-step of embossing.
B0. An apparatus for processing a web of wrapping material to make smoking articles, the apparatus comprising:
- a feeding device configured to feed the web of wrapping material to advance it by a predetermined quantity corresponding to a length of a stretch of web used to make a single article;
- a processing shaft configured to create at least one feature on the web.
B. The apparatus according to paragraph B0, comprising a marking shaft configured to apply a mark on a surface of the wrapping material.
B1. The apparatus according to paragraph B, comprising a device for generating a synchronization signal, wherein the processing shaft and/or the marking shaft are controlled as a function of the synchronization signal. B2. The apparatus according to any one of paragraphs B0 to B1 , wherein the processing shaft is configured to perform the following feature processes:
- applying a logo to a surface of the web of wrapping material;
- embossing a surface of the wrapping material to create a knurled portion;
- applying a metallic element to a surface of the web of wrapping material. C. A method for making smoking articles, comprising the following steps:
- feeding to a first machine a web of wrapping material in order to advance it by a predetermined quantity corresponding to a length of a stretch of web used to make an article;
- creating at least one feature on the web of wrapping material using the first machine;
- applying a mark on a surface of the wrapping material using the first machine;
- transferring the wrapping material from the first machine to a second machine;
- cutting the web into a plurality of connecting strips;
- using the second machine, rolling each connecting strip of the plurality around a respective group of segments of the tobacco industry to make a rod in such a way that the surface of the strip with the mark on it faces the inside of the rod;
- using the second machine, cutting the rod into a plurality of smoking articles.
C1 . The method according to paragraph C, further comprising a step of detecting a position of the mark in the second machine, where the steps of rolling and/or cutting are controlled as a function of the position of the mark detected.
C1 .1 . The method according to paragraph C1 , comprising a plurality of steps of detecting the position of the mark in the second machine, where the steps of rolling and/or cutting the rod are controlled as a function of the position of the mark detected in one or more of the plurality of steps of detecting.
C1 .2. The method according to paragraph C1 or paragraph C1 .1 , wherein the step of cutting the web is performed by the second machine and is controlled as a function of the position of the mark detected.
C2. The method according to any one of paragraphs C to C1 .2, wherein the steps of feeding the web of wrapping material, creating a feature on the web and applying the mark are repeated cyclically with periodicity and wherein the method further comprises a step of generating a synchronization signal representing the periodicity.
C2.1 . The method according to paragraph C2, wherein the mark is applied by a marking shaft controlled by the synchronization signal.
C2.2. The method according to paragraph C2 or C2.1 , wherein the step of creating the feature on the web is controlled by the synchronization signal. C3. The method according to any one of paragraphs C to C2.2, further comprising a step of temporarily storing a stretch of the web of wrapping material in a buffer, the length of the stretch of the web of wrapping material in the buffer being variable over time.
C4. The method according to any one of paragraphs C to C3, wherein the step of applying the mark is performed on an inside surface of the web of wrapping material which is intended to face the inside of the corresponding article when the article is finished.
C5. The method according to any one of paragraphs C to C4, wherein the step of applying the mark is accomplished by inkjet printing or laser engraving.
C6. The method according to any one of paragraphs C to C5, wherein the step of creating a feature includes applying a logo (3) to a surface of the web of wrapping material.
C7. The method according to any one of paragraphs C to C6, wherein the step of creating a feature includes applying a metallic element on a surface of the web of wrapping material.
C8. The method according to any one of paragraphs C to C7, wherein the step of creating a feature includes embossing a surface of the web of wrapping material in order to make a knurled portion.
C9. The method according to any one of paragraphs C to C8, wherein the step of creating a feature includes the following sub-steps:
- applying a logo to a surface of the web of wrapping material;
- embossing a surface of the wrapping material to create a knurled portion;
- applying a metallic element to a surface of the web of wrapping material. C10. The method according to any one of paragraphs C to C9, wherein the step of applying the mark follows the sub-step of applying the logo and precedes the sub-step of embossing, the sub-step of embossing preceding the sub-step of applying the metallic element.
D. A line for making smoking articles, the line comprising:
a first machine, which comprises:
- a feeding device configured to feed the web of wrapping material to advance it by a predetermined quantity corresponding to a length of a stretch of web used to make a single article;
- a processing shaft configured to create at least one feature on the web;
- a marking shaft configured to apply a mark on a surface of the wrapping material;
and a second machine, which comprises:
- a cutting device for cutting the web of wrapping material and configured to divide the web into a plurality of connecting strips;
- a rolling bed configured to roll each connecting strips around a respective group of segments of the tobacco industry to make a rod in such a way that the surface of the strip with the mark on it faces the inside of the rod;
- a cutting device for cutting the rod and configured to divide the rod into a plurality of smoking articles.
D1 . The line according to paragraph D, wherein the second machine further comprises at least one device for detecting the position of the mark, wherein one or more between the web cutting device, the rolling device and the rod cutting device are controlled as a function of the position of the mark.
D2. The line according to paragraph D or D1 , further comprising a buffer, configured to temporarily store a stretch of the web of wrapping material, the length of the stretch of the web of wrapping material in the buffer being variable over time.
D3. The line according to any one of paragraphs D to D2, wherein the mark is applied on an inside surface of the web of wrapping material which is intended to face the inside of the corresponding article when the article is finished.
D4. The line according to any one of paragraphs D to D3, wherein the marking shaft is configured to apply by inkjet printing or laser engraving. D5. The line according to any one of paragraphs D to D4, wherein the processing shaft is configured to apply a logo to a surface of the web of wrapping material.
D6. The line according to any one of paragraphs D to D5, wherein the processing shaft is configured to apply a metallic element (4) on a surface of the web (2) of wrapping material.
D7. The line according to any one of paragraphs D to D6, wherein the processing shaft is configured to emboss a surface of the web of wrapping material in order to create a knurled portion.
D8. The line according to any one of paragraphs D to D6, wherein the processing shaft is configured to perform the following feature processes:
- applying a logo (3) to a surface of the web of wrapping material (2);
- embossing a surface of the web of wrapping material (2) to create a knurled portion (1 1 );
- applying a metallic element (4) to a surface of the web of wrapping material (2).

Claims

1. A method for processing a web of wrapping material (2) to make smoking articles (1 ), comprising the following steps, repeated cyclically with periodicity:
- feeding the web of wrapping material (2) to advance it by a predetermined quantity corresponding to a length of a stretch of web used to make an article (1 );
- creating a feature on the web of wrapping material (2);
- applying a mark (6) on a surface of the web of wrapping material (2); characterized in that the method comprises a step of generating a synchronization signal representing the periodicity, wherein the mark is applied by means of a shaft controlled by the synchronization signal, and wherein the step of creating the feature on the web of wrapping material (2) is controlled by the synchronization signal.
2. The method according to claim 1 , wherein the step of applying the mark (6) is performed on an inside surface (2A) of the web of wrapping material (2) which is intended to face the inside of the corresponding article (1 ) when the article (1 ) is finished.
3. The method according to claim 1 , or 2, wherein the step of applying the mark (6) is accomplished by inkjet printing or laser engraving.
4. The method according to any one of the preceding claims, wherein the step of creating a feature includes applying a logo (3) to a surface of the web of wrapping material (2).
5. The method according to any one of the preceding claims, wherein the step of creating a feature includes applying a metallic element (4) to a surface of the web of wrapping material (2).
6. The method according to any one of the preceding claims, wherein the step of creating a feature includes embossing a surface of the web of wrapping material (2) to create a knurled portion (1 1 ).
7. The method according to any one of the preceding claims, wherein the step of creating a feature includes the following sub-steps: - applying a logo (3) to a surface of the web of wrapping material (2);
- embossing a surface of the web of wrapping material (2) to create a knurled portion (1 1 );
- applying a metallic element (4) to a surface of the web of wrapping material (2).
8. The method according to claim 7, wherein the step of applying the mark (6) follows the sub-step of applying the logo (3) and precedes the sub-step of embossing (1 1 ), the sub-step of embossing (1 1 ) preceding the sub-step of applying the metallic element (4).
9. The method according to any one of the preceding claims, further comprising a step of temporarily storing a stretch of the web of wrapping material (2) in a buffer (B), the length of the stretch of the web of wrapping material (2) in the buffer (B) being variable over time.
10. An apparatus for processing a web of wrapping material (2) to make smoking articles (1 ), the apparatus comprising:
- a feeding device (103) configured to feed the web of wrapping material (2) to advance it by a predetermined quantity corresponding to a length of a stretch of web (2) used to make a single article (1 );
- a processing shaft (104) configured to create at least one feature on the web (2);
- a marking shaft (107) configured to apply a mark (6) on a surface of the wrapping material (2),
characterized in that it further comprises a device for generating a synchronization signal, wherein the processing shaft and the marking shaft are controlled as a function of the synchronization signal.
11. A web of wrapping material (2) to make smoking articles (1 ) comprising:
- a logo (3) applied on an outside surface of the wrapping material (2) intended to face the outside of the corresponding article (1 );
- a mark (6) applied on an inside surface of the wrapping material (2), opposite to the outside surface and intended to face the inside of the corresponding article (1 );
- a knurled portion (1 1 );
- at least one element (4) comprising, or made of, metallic material, the at least one element (4) being disposed on the inside surface of the wrapping material (2).
12. A method for making smoking articles (1 ), comprising the following steps:
- feeding to a first machine a web of wrapping material (2) in order to advance it by a predetermined quantity corresponding to a length of a stretch of web used to make an article (1 );
- creating at least one feature on the web of wrapping material (2) using the first machine;
- applying a mark (6) on a surface of the wrapping material (2) using the first machine;
- transferring the wrapping material (2) from the first machine to a second machine;
- cutting the web into a plurality of connecting strips (7);
- using the second machine, rolling each connecting strip (7) of the plurality around a respective group of segments of the tobacco industry to make a rod in such a way that the surface of the strip (7) with the mark (6) on it faces the inside of the rod;
- using the second machine, cutting the rod into a plurality of smoking articles (1 ),
characterized in that it further comprises a step of detecting a position of the mark in the second machine, where the steps of rolling and cutting are controlled as a function of the position of the mark detected.
13. The method according to claim 12, comprising a plurality of steps of detecting the position of the mark in the second machine, where the steps of rolling and cutting the rod are controlled as a function of the position of the mark detected in one or more of the plurality of steps of detecting.
14. The method according to claim 12 or 13, wherein the step of cutting the web is performed by the second machine and is controlled as a function of the position of the mark detected.
15. The method according to any one of claims 12 to 14, wherein the steps of feeding, creating a feature and applying the mark are repeated cyclically with periodicity and wherein the method further comprises a step of generating a synchronization signal representing the periodicity, wherein the mark is applied by means of a marking shaft controlled by the synchronization signal, and wherein the step of creating the feature on the web in the first machine is controlled by the synchronization signal.
16. The method according to any one of claims 12 to 15 further comprising a step of temporarily storing a stretch of the web of wrapping material (2) in a buffer (B), the length of the stretch of the web of wrapping material (2) in the buffer (B) being variable over time.
17. The method according to any one of claims 12 to 16, wherein the step of applying the mark (6) follows the sub-step of applying the logo (3) and precedes the sub-step of embossing (1 1 ), the sub-step of embossing (1 1 ) preceding the sub-step of applying the metallic element (4).
18. A line (100) for making smoking articles (1 ), the line comprising:
a first machine, which comprises:
- a feeding device (103) configured to feed the web of wrapping material (2) to advance it by a predetermined quantity corresponding to a length of a stretch of web used to make a single article (1 );
- a processing shaft (104) configured to create at least one feature on the web (2);
- a marking shaft (107) configured to apply a mark (6) on a surface of the web of wrapping material (2),
and a second machine, which comprises:
- a cutting device (108) for cutting the web of wrapping material (2) and configured to divide the web into a plurality of connecting strips (7);
- a rolling bed (109) configured to roll each connecting strips (7) around a respective group of segments of the tobacco industry to make a rod in such a way that the surface of the strip (7) with the mark (6) on it faces the inside of the rod;
- a cutting device for cutting the rod and configured to divide the rod into a plurality of smoking articles (1 ),
characterized in that the second machine further comprises at least one device for detecting the position of the mark, wherein the web cutting device, the rolling device and the rod cutting device are controlled as a function of the position of the mark.
PCT/IB2019/055049 2018-06-18 2019-06-17 Method for processing a web of wrapping material used to make smoking articles WO2019244003A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19758498.0A EP3806665A1 (en) 2018-06-18 2019-06-17 Method for processing a web of wrapping material used to make smoking articles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102018000006360 2018-06-18
IT102018000006360A IT201800006360A1 (en) 2018-06-18 2018-06-18 Method for processing a web of wrapping material to make smoking articles

Publications (1)

Publication Number Publication Date
WO2019244003A1 true WO2019244003A1 (en) 2019-12-26

Family

ID=63491962

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2019/055049 WO2019244003A1 (en) 2018-06-18 2019-06-17 Method for processing a web of wrapping material used to make smoking articles

Country Status (3)

Country Link
EP (1) EP3806665A1 (en)
IT (1) IT201800006360A1 (en)
WO (1) WO2019244003A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117562291A (en) * 2024-01-17 2024-02-20 杭州书微信息科技有限公司 Synchronous control method, master controller, synchronous control system and storage medium

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024134413A1 (en) * 2022-12-20 2024-06-27 G.D S.P.A. Machine for the production of cigarettes presenting a first graphic pattern and a second graphic pattern
WO2024134411A1 (en) * 2022-12-20 2024-06-27 G.D S.P.A. Machine for the production of cigarettes presenting a first graphic pattern and a second graphic pattern

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1161888A2 (en) * 2000-06-08 2001-12-12 Hauni Maschinenbau AG Method and device for feeding a connecting band with perforated zones for ventilated cigarettes
DE10150272A1 (en) * 2001-10-12 2003-04-17 Hauni Maschinenbau Ag Monitoring of gluing of cigarette papers in cigarette production plant, involves combining images of the glue pattern on cigarette papers in a monitoring image that allows operators to easily detect recurring errors
EP2306853A1 (en) * 2008-05-20 2011-04-13 British American Tobacco (Investments) Limited Apparatus and method for making a smoking article
EP2465362A2 (en) * 2010-12-17 2012-06-20 HAUNI Maschinenbau AG Device for processing a sheet of paper used in the production of rod-shaped tobacco items
EP2727481A2 (en) * 2012-11-06 2014-05-07 HAUNI Maschinenbau AG Method for detecting the position of a pre-printed strip of material in a machine for the tobacco processing industry, and machine for the tobacco processing industry

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1161888A2 (en) * 2000-06-08 2001-12-12 Hauni Maschinenbau AG Method and device for feeding a connecting band with perforated zones for ventilated cigarettes
DE10150272A1 (en) * 2001-10-12 2003-04-17 Hauni Maschinenbau Ag Monitoring of gluing of cigarette papers in cigarette production plant, involves combining images of the glue pattern on cigarette papers in a monitoring image that allows operators to easily detect recurring errors
EP2306853A1 (en) * 2008-05-20 2011-04-13 British American Tobacco (Investments) Limited Apparatus and method for making a smoking article
EP2465362A2 (en) * 2010-12-17 2012-06-20 HAUNI Maschinenbau AG Device for processing a sheet of paper used in the production of rod-shaped tobacco items
EP2727481A2 (en) * 2012-11-06 2014-05-07 HAUNI Maschinenbau AG Method for detecting the position of a pre-printed strip of material in a machine for the tobacco processing industry, and machine for the tobacco processing industry

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117562291A (en) * 2024-01-17 2024-02-20 杭州书微信息科技有限公司 Synchronous control method, master controller, synchronous control system and storage medium
CN117562291B (en) * 2024-01-17 2024-04-19 杭州书微信息科技有限公司 Synchronous control method, master controller, synchronous control system and storage medium

Also Published As

Publication number Publication date
IT201800006360A1 (en) 2019-12-18
EP3806665A1 (en) 2021-04-21

Similar Documents

Publication Publication Date Title
US10231478B2 (en) Apparatus and method for making a smoking article
EP0118984B1 (en) Smoking rod wrapper
EP3806665A1 (en) Method for processing a web of wrapping material used to make smoking articles
EP3727042B1 (en) Method and unit for crimping a web of material for the tobacco industry
US10589952B2 (en) Tipping paper feed assenbly for use in smoking article manufacture
US9332785B2 (en) Method of manufacturing multi-segment filter rods
JP7136574B2 (en) Method for producing an at least two-layer tube-shaped continuous body for the tobacco processing industry and apparatus for producing an at least two-layer tube-shaped continuous body for the tobacco processing industry
EP2829393A1 (en) Embossing device and packaging machine comprising the device
JP2017532969A (en) Smoking article assembly machine and method for manufacturing smoking article
CN111329105B (en) Method and device for producing rod-shaped articles for the tobacco industry
EP3592159B1 (en) Unit and method for separating plugwraps and applying them to rod-shaped smoking articles
EP3426065B1 (en) Device and method for rolling cigarettes, filter cigarettes or filters
WO2019123204A1 (en) Method for making rod-shaped articles
JP7233445B2 (en) Rewinding machine for paper material log production
EP3516969B1 (en) Machine and method for making plug wraps for the tobacco industry
EP2999362B1 (en) Apparatus for making smokers' articles
WO2024134411A1 (en) Machine for the production of cigarettes presenting a first graphic pattern and a second graphic pattern
WO2024134413A1 (en) Machine for the production of cigarettes presenting a first graphic pattern and a second graphic pattern
WO2013145123A1 (en) Method and device for controlling cigarette weight
WO2015022597A1 (en) Method and apparatus for application of glue

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19758498

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2019758498

Country of ref document: EP

Effective date: 20210118