GB2184064A - Printing on continuous webs - Google Patents

Printing on continuous webs Download PDF

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Publication number
GB2184064A
GB2184064A GB08629662A GB8629662A GB2184064A GB 2184064 A GB2184064 A GB 2184064A GB 08629662 A GB08629662 A GB 08629662A GB 8629662 A GB8629662 A GB 8629662A GB 2184064 A GB2184064 A GB 2184064A
Authority
GB
United Kingdom
Prior art keywords
roller
web
printing
ink
transfer
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
GB08629662A
Other versions
GB8629662D0 (en
Inventor
Dennis Graham-Troll
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mpac Group PLC
Original Assignee
Molins Ltd
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 Molins Ltd filed Critical Molins Ltd
Publication of GB8629662D0 publication Critical patent/GB8629662D0/en
Publication of GB2184064A publication Critical patent/GB2184064A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41K—STAMPS; STAMPING OR NUMBERING APPARATUS OR DEVICES
    • B41K3/00—Apparatus for stamping articles having integral means for supporting the articles to be stamped
    • B41K3/02—Apparatus for stamping articles having integral means for supporting the articles to be stamped with stamping surface located above article-supporting surface
    • B41K3/12—Apparatus for stamping articles having integral means for supporting the articles to be stamped with stamping surface located above article-supporting surface with curved stamping surface for stamping by rolling contact
    • B41K3/14—Apparatus for stamping articles having integral means for supporting the articles to be stamped with stamping surface located above article-supporting surface with curved stamping surface for stamping by rolling contact for relief stamping

Landscapes

  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)

Abstract

The continuous wrapper web (4) used in the making of cigarette filter rods has spaced indicia (M) printed on it as it passes between a printing roller (10) and a co-operating pressure roller (11). A spring urges the roller (10) towards the roller (11) thus causing the web (4) to be gripped therebetween; the rollers (10, 11) are rotated by reason of the web (4) being pulled along between them. Ink is fed to the roller (10) from a duct (21) via a steel roller (20) and a transfer roller (18) having a raised rubber band (19). The roller (20) is belt driven from the printing roller (10) and roller (18) is frictionally driven from roller (20). <IMAGE>

Description

SPECIFICATION Printing apparatus This invention concerns improvements in or relating to printing apparatus, and particularly to the printing of identifying indicia to the paper wrapper of rod shaped articles of the tobacco industry.
It is common in cigarette making machines, when printing indicia at intervals on a continuous web, for the roller which applies the inked pattern to the web to be driven at the same speed as the web via a gear train. Thus the inked pattern is applied at a fixed distance from the end of each cigarette.
The present invention is concerned with applying identification marks to the web used to form filter rods. Such marks will be hidden under the usual cork-like tipping paper in the completed filter cigarettes and therefore do not need to be timed in relation to the ends of the filter rods.
According to the present invention there is provided apparatus for printing indicia on a continuous wrapper web used in the manufacture of filter rods, comprising a printing roller for engaging one side of said web to print said indicia at spaced locations along said web, means to transfer ink from a supply means to said printing roller, a pressure roller for engaging the other side of said web opposite said printing roller, mounting means on which said printing and said pressure rollers are freely rotatable, and means for causing said printing and said pressure rollers to grip said web therebetween and provide a driving connection between said web and said printing roller whilst said web is moving.
The invention will now be described, by way of example only, with reference to the accompanying drawings in which: Figure 1 is a diagrammatic front view of a machine for making cigarette filter rods, and Figure 2 is a perspective view of part of Fig. 1 drawn to a larger scale.
Referring to Fig. 1, a continuous stream 1 of material suitable for making cigarette filter rods is fed, in known manner, from a supply means 2 towards a device 3 (commonly called a garniture) of known construction in which the filter material is wrapped in an outer wrapper of paper fed as a continuous web 4 from a bobbin 5, the web 4 being sealed along its edges whilst passing through the device 3.
The web 4 is pulled from the bobbin 5 by the device 3 in the usual manner. After emerging from the device 3 the wrapped rod 6 is cut into predetermined lengths 7 in a cut-off unit 8 and delivered to a collecting apparatus which forms no part of the present invention.
Referring now also to Fig. 2, between the bobbin 5 and the device 3, the web 4 has an identification mark or code M printed on it at regular spaced locations by a printing unit 9.
The unit 9 comprises a printing roller 10 and a pressure roller 11 between which the web is pulled by the device 3. The printing roller 10 is made of steel and carries a forme F of the mark M- to be printed on the web 4. The pressure roller 11 is made of a resilient material, such as polyurethane, and the roller 10 is provided with two steel "tyres" 12, one one each side of the forme F. Alternatively the tyres 12 may be made of a resilient material. The roller 10 is freely- mounted for rotation on a shaft 13 and the roller 11 is simiarly mounted on a shaft 14. The shaft 13 is journalled in a plate 15 which is pivoted at 16 to a further plate 17 attached to a fixed part of the machine, the roller 11 being journalled in the plate 17.A spring (not shown) extends between the shafts 13, 14 so as to swing the plate 15 clockwise about the pivot 16 and urge the roller 10 towards the roller 11, thus causing the web 4 to be gripped between the roller 11 and the tyres 12. The arrangement is such that the rollers 10, 11 are continuously rotated as the web 4 is pulled through the nip of rollers 10, 11 by the device 3, and on each revolution of roller 10 a mark M is printed on the web 4.
Ink is applied to the forme F by a transfer roller 18 which picks up ink, on a central raised rubber band 19, from a steel duct roller 20 which, in turn, receives ink from an ink duct 21 loosely carried on a shaft 22 fixed in the plate 15. Ink is supplied to the duct 21 from a reservoir (not shown) via a pipe 23.
The position of the duct 21 relative to the roller 20, so as to control the thickness of the layer of ink received by duct roller 20, is adjusted by means of a screw 24 mounted in a block 25 also fixed to plate 15.
The duct roller 20 is driven from the printing roller 10 by means of a toothed belt (not shown) and the transfer roller 18 is frictionally driven by duct roller 20. Thus the motive power for driving the rollers 10, 11, 18 and 20 is created by the web 4 being pulled along by the device 3. As the marks M will not, in the final filter cigarette, be visible to the smoker, exact positioning of the mark on the web 4 is not necessary. The only requirement to ensure that at least one mark M appears on each short length 7, is that the pitch of the marks M should be less than the length of a length 7.
The plate 15 can be swung anti-clockwise about pivot 16 so that the roller 10 is moved away from roller 11 to an "off" position, and held there, by, for example, a catch (not shown). This provides access for maintenance and, if required, enables roller 10 to be replaced by one having a different forme so as to print a different mark on the web 4. Before the machine shown in Fig. 1 is started the printing unit may be held in the "off" position by means of the catch mentioned above, the catch being released when it is desired to print marks M on the web 4.
In a modified arrangement (not shown) two further rubber transfer rollers, are provided, one between the duct roller 20 and transfer roller 18, and the other between transfer roller 18 and the printing roller 10. In this case, rubber bank 19 on transfer roller 18 is formed as an integral part of roller 18 and thus made of steel. Again, drive to the extra rollers is frictional, from roller 20.
In a further modification the roller 10 is fitted with a free-wheel device (not shown) to prevent it from rotating in the wrong direction.

Claims (7)

1. Apparatus for printing indicia on a continuous wrapper web used in the manufacture of filter rods, comprising a printing roller for engaging one side of said web to print said indicia at spaced locations along said web, means to transfer ink from a supply means to said printing roller, a pressure roller for engaging the other side of said web opposite said printing roller, mounting means on which said printing and said pressure rollers are freely rotatable, and means for causing said printing and said pressure rollers to grip said web therebetween and provide a driving connection between said web and said printing roller whilst said web is moving.
2. Apparatus according to claim 1 in which the pressure roller or at least the periphery thereof is of resilient material.
3. Apparatus according to claim 1 or claim 2 in which the printing roller has axially spaced circumference tyres on opposite sides of a forme or other means on the printing roller for transferring ink to the web.
4. Apparatus according to any one of claims 1 to 3 including a transfer roller which is arranged to apply ink to the printing roller.
5. Apparatus according to claim 4 including a duct roller arranged to transfer ink from an ink duct to the transfer roller.
6. Apparatus according to claim 5 in which the transfer roller and duct roller are driven directly or indirectly by the printing roller.
7. Apparatus according to claim 1 and substantially as described with reference to the accompanying drawings.
GB08629662A 1985-12-11 1986-12-11 Printing on continuous webs Withdrawn GB2184064A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB858530487A GB8530487D0 (en) 1985-12-11 1985-12-11 Printing apparatus

Publications (2)

Publication Number Publication Date
GB8629662D0 GB8629662D0 (en) 1987-01-21
GB2184064A true GB2184064A (en) 1987-06-17

Family

ID=10589580

Family Applications (2)

Application Number Title Priority Date Filing Date
GB858530487A Pending GB8530487D0 (en) 1985-12-11 1985-12-11 Printing apparatus
GB08629662A Withdrawn GB2184064A (en) 1985-12-11 1986-12-11 Printing on continuous webs

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB858530487A Pending GB8530487D0 (en) 1985-12-11 1985-12-11 Printing apparatus

Country Status (1)

Country Link
GB (2) GB8530487D0 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999051439A1 (en) * 1998-04-03 1999-10-14 British American Tobacco (Investments) Limited Flexographic printing on smoking article web material
EP1060885A1 (en) * 1999-06-15 2000-12-20 Kabushiki Kaisha Tokyo Kikai Seisakusho Ink rail for printing press

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB356679A (en) * 1929-03-14 1931-09-10 Frank James Noble Improvements in or relating to machines for forming paper sealing strips
GB404743A (en) * 1932-08-03 1934-01-25 Henry Francis Crowley Improvements in or relating to machines for printing and moistening strips of adhesive paper and the like
US3582434A (en) * 1967-12-27 1971-06-01 Tapeler Corp Tape applying device with tape printing means
GB2101042A (en) * 1981-05-12 1983-01-12 Marozzi Alfred A Strap printing device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB356679A (en) * 1929-03-14 1931-09-10 Frank James Noble Improvements in or relating to machines for forming paper sealing strips
GB404743A (en) * 1932-08-03 1934-01-25 Henry Francis Crowley Improvements in or relating to machines for printing and moistening strips of adhesive paper and the like
US3582434A (en) * 1967-12-27 1971-06-01 Tapeler Corp Tape applying device with tape printing means
GB2101042A (en) * 1981-05-12 1983-01-12 Marozzi Alfred A Strap printing device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999051439A1 (en) * 1998-04-03 1999-10-14 British American Tobacco (Investments) Limited Flexographic printing on smoking article web material
GB2351040A (en) * 1998-04-03 2000-12-20 British American Tobacco Co Flexographic printing on smoking article web material
GB2351040B (en) * 1998-04-03 2002-06-19 British American Tobacco Co Flexographic printing on smoking article web material
EP1060885A1 (en) * 1999-06-15 2000-12-20 Kabushiki Kaisha Tokyo Kikai Seisakusho Ink rail for printing press

Also Published As

Publication number Publication date
GB8530487D0 (en) 1986-01-22
GB8629662D0 (en) 1987-01-21

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)