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
  • B41K3/62—Details or accessories
  • B41K3/64—Stamping mechanisms controlled by feed of copy matter
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41F—PRINTING MACHINES OR PRESSES
  • B41F13/00—Common details of rotary presses or machines
  • B41F13/008—Mechanical features of drives, e.g. gears, clutches
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41F—PRINTING MACHINES OR PRESSES
  • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
  • B41F17/24—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on flat surfaces of polyhedral articles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
  • B65H5/06—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
  • G07B17/00—Franking apparatus
  • G07B17/00459—Details relating to mailpieces in a franking system
  • G07B17/00508—Printing or attaching on mailpieces
• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
  • G07B17/00—Franking apparatus
  • G07B17/00459—Details relating to mailpieces in a franking system
  • G07B17/00661—Sensing or measuring mailpieces
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
  • B65H2511/10—Size; Dimensions
  • B65H2511/13—Thickness
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
  • B65H2511/20—Location in space
  • B65H2511/22—Distance
• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
  • G07B17/00—Franking apparatus
  • G07B17/00459—Details relating to mailpieces in a franking system
  • G07B17/00467—Transporting mailpieces
• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
  • G07B17/00—Franking apparatus
  • G07B17/00459—Details relating to mailpieces in a franking system
  • G07B17/00508—Printing or attaching on mailpieces
  • G07B2017/00516—Details of printing apparatus
  • G07B2017/00556—Ensuring quality of print
  • G07B2017/00564—Ensuring correct position of print on mailpiece
• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
  • G07B17/00—Franking apparatus
  • G07B17/00459—Details relating to mailpieces in a franking system
  • G07B17/00661—Sensing or measuring mailpieces
  • G07B2017/00685—Measuring the dimensions of mailpieces

Definitions

• the present invention relates to machines for printing flat objects and, more particularly, mail processing machines intended to affix a cancellation or franking mark on envelopes, by printing by means of a rotary drum. marking cooperating with a counter-roller making it possible to obtain the counter-impression force.
• Document EP-A-0547922 makes known such a machine for printing flat objects (in particular envelopes) of various thicknesses brought successively along a table by means of a feeding mechanism and printed by means of a printing mechanism, the feeding mechanism comprising at least two rollers, including at least one motorized roller, between which the objects pass, the printing mechanism comprising a rotating drum d and a motorized roller for counter-printing.
• the machines printing the cancellation or franking marks using a rotary drum today use a motorization to drive the envelopes and another to drive the printing drum.
• the movement of the drum is described precisely in document OA-96/26502.
• the print drum drive motor performs a violent acceleration work to allow the drum to meet the letter in perfect synchronism.
• the print drum drive motor must move the counterprint roller. As the latter is pressed strongly against the drum, the work to be done suddenly by the drive motor is very important.
• more and more stepping motors are used for the motorization of the printing drum. While these have great advantages, they are nevertheless relatively sensitive to sudden load variations.
• the present invention aims to overcome these various drawbacks, and to significantly reduce the work to be done by the drive motor of the printing drum.
• the invention achieves its object in the context of a machine of the type defined above thanks to an automatic and simple thickness compensation device, namely that the axes of the counter-impression roller and one of the two rollers feed are carried by the ends of a lever pivoting in the middle and articulated at this point by a hinge with a stop, so that the movement of said feed roller as a result of the passage of an object between the two rollers feed causes pivoting of the lever and therefore a corresponding displacement of the counter-impression roller, if the latter has not already been displaced by at least said corresponding displacement during the passage of a previous object.
• said thickness compensating lever is constituted by two yokes articulated one on the other by an articulation. A screw passes through an extension of one of the yokes to rest on the other, in order to constitute an adjustable stop for said articulation.
• springs respectively recall the rollers carried by the lever towards the contact with the opposing roller and the printing drum.
• the counter-impression roller is motorized by the motor of the feed roller by means of a belt-pulley assembly.
• FIG. 1 is a developed sectional view of a conforming printing machine to the invention
• FIG. 2 is a front view of the machine in FIG. 1,
• FIG. 3 is a perspective view of the compensating lever according to the invention
• FIG. 4 is a schematic front view of the machine of Figure 1, showing a first step in the path of an envelope, its insertion,
• FIG. 5 is a similar view of the machine of FIG. 1, showing a second step in the path of an envelope, during its printing,
• - Figure 6 is a similar view of the machine of Figure 1, showing a third step in the path of an envelope, after printing
• - Figure 7 is a similar view of the machine of Figure 1, showing the arrival of a new envelope thinner than the envelope that has just been printed
• - Figure 8 is a similar view of the machine of 1, showing the arrival of a new envelope thicker than the envelope which has just been printed.
• the mail processing machine has a main structure formed by two parallel vertical plates before 1 and rear 1 connected by spacers 2. This box structure allows the mounting and guiding of the various components of the machine.
• a horizontal table 22 is mounted at the front, perpendicular to the plate 1, for guiding the envelopes to be printed.
• the mechanism for feeding envelopes comprises the drive roller 3 mounted at the front of the plate 1 on the shaft 4 which is rotated by the motor 5, disposed at the rear of the plate 1 '.
• the printing mechanism comprises the printing drum 6 which is: engraved with the mark to be printed.
• the drum is also mounted at the front of the plate 1 on the shaft 7 rotated by the motor 8 disposed at the rear.
• a not shown envelope ejection mechanism can be arranged downstream of the printing mechanism.
• Figure 3 shows the embodiment of the articulated lever constituting the compensating device of the invention. It consists of two U-shaped yokes 9 and 10, with cut angles, mounted head to tail and hinged to each other on an axis 11 screwed into the plate 1 (see Figure 1) and parallel to the shafts 4 and 7.
• the upper yoke 10 carries, on an extension 25 of its back disposed on the side of the joint 11, a screw 12 whose end 26 is in contact with the inside of the back of the opposite opposite yoke 9.
• the articulation 11 is therefore an articulation with adjustable stop allowing the lever constituted by the yokes 9, 10 to operate only in one direction of rotation.
• the yoke 9 carries at its end opposite the articulation 11 a journalling axis 13 passing through the plate 1 by an appropriate light 27 and at the front end of which is mounted a roller 14.
• the roller 14 is free and in contact pressure with the drive roller 3 by the action of a tension spring 15 connecting the yoke 9 to a pin 28 mounted in the plate 1 (see Figure 1).
• the yoke 10 carries at its end opposite the articulation 11, at the same distance as the axis 13, a swiveling axis 16 on which the counter-impression roller 17 is mounted.
• the counter-impression roller 17 is under pressure of contact with the printing drum 6 by the action of a tension spring 18 connecting the yoke 10 to a dowel 29 mounted in the plate 1 (cf. FIG. 1)
• Figure 4 illustrates the first step in inserting an envelope.
• the casing 23 coming from a conventional unstacking system which is not part of the invention is supported by the feed rollers 3 and 14.
• the rotation of the roller 3 is ensured by the motor 5 by means of the shaft 4.
• the thickness of the envelope 23 forces the roller 14 to move in the direction of the arrow 30, that is to say to rise relative to its rest position. Therefore, the yoke 9 rotates clockwise around the axis 11, and through the contact of the screw 12 with the inner face of the yoke 9, the yoke 10 also rotates clockwise around 1 axis 11.
• the counter-printing roller 17 moves away from the printing drum 6, downwards, by the value of the thickness of the envelope 23, because the axes of rotation of the rollers 14 and 17 are arranged at equal distances from the axis 11.
• FIG. 5 shows the next step.
• the printing drum 6 is rotated by the motor 8 via the shaft 7.
• the casing 23 is now engaged both in the feed rollers 3, 14 and between the printing drum 6 and the counter-printing roller 17, and the envelope 23 receives the impression of the drum 6.
• the envelope 23 leaves the feed rollers 3, 14: the action of the return spring 15 brings the roller 14 into contact with the roller 3, while the counter-printing roller 17 is always in contact with the envelope, which is made possible by the articulation relative to the stop of the yokes 9 and 10. Therefore, the mechanism is ready to receive a new envelope.
• Figure 7 shows the arrival of an envelope 24 'thinner than the envelope 23' which preceded it and is being ejected.
• the roller 14 is free to mount the desired thickness, thanks to the articulation 11 which is not blocked because the counter-drum 17 had already been moved down a distance corresponding to the thickness of the envelope 23 ', greater than that which the roller 14 must mount to allow the envelope 24' to pass.
• FIG. 8 shows the opposite case of the arrival of an envelope 24 "thicker than the envelope 23" which preceded it.
• the displacement of the roller 14 upwards, greater than in the previous case, is done and consequently separates the roller 17 and the drum 6 from each other even more, without detrimental impact on the preceding envelope 23 " , because the printing of this one is finished.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Computer Security & Cryptography (AREA)
• Delivering By Means Of Belts And Rollers (AREA)
• Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=9511029

Family Applications (1)

Country Status (6)

Families Citing this family (2)

Family Cites Families (14)

• 1997
  • 1997-09-12 FR FR9711375A patent/FR2768366B1/fr not_active Expired - Fee Related
• 1998
  • 1998-08-21 DE DE69804425T patent/DE69804425T2/de not_active Expired - Fee Related
  • 1998-08-21 EP EP98942770A patent/EP0938415B1/de not_active Expired - Lifetime
  • 1998-08-21 CA CA002271981A patent/CA2271981A1/fr not_active Abandoned
  • 1998-08-21 US US09/308,051 patent/US6095699A/en not_active Expired - Fee Related
  • 1998-08-21 WO PCT/FR1998/001837 patent/WO1999014054A1/fr active IP Right Grant

Non-Patent Citations (1)

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