US3102472A - Rotary printing press for apertured continuous metal strip - Google Patents

Rotary printing press for apertured continuous metal strip Download PDF

Info

Publication number
US3102472A
US3102472A US111784A US11178461A US3102472A US 3102472 A US3102472 A US 3102472A US 111784 A US111784 A US 111784A US 11178461 A US11178461 A US 11178461A US 3102472 A US3102472 A US 3102472A
Authority
US
United States
Prior art keywords
strip
roller
apertures
speed
monitor
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.)
Expired - Lifetime
Application number
US111784A
Other languages
English (en)
Inventor
Jr Robert J Kieckhefer
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.)
LITHO STRIP CORP
Original Assignee
LITHO STRIP CORP
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 LITHO STRIP CORP filed Critical LITHO STRIP CORP
Priority to US111784A priority Critical patent/US3102472A/en
Priority to GB13782/62A priority patent/GB959941A/en
Priority to SE403662A priority patent/SE219769C1/sl
Priority to BE617785A priority patent/BE617785A/fr
Priority to DK230162AA priority patent/DK103943C/da
Application granted granted Critical
Publication of US3102472A publication Critical patent/US3102472A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/02—Conveying or guiding webs through presses or machines

Definitions

  • This invention relates to apparatus for printing and decorating metal and similar substantially stiff material in continuous strip form, and refers more particularly to means for so controlling the rotation of the impression roller or rollers in such apparatus that the successive impressions made thereby are all in register with apertures in the material located at regularly spaced intervals along its length.
  • a major problem is the synchronization of the rotation of the impression roller, carrying the image to be reproduced, with the lengthwise motion of the strip, so that the successive impressions made by the impression roller are at uniformly spaced predetermined intervals along the strip.
  • register is usually employed inthe graphic arts to denote the correct relationship to one another of two or more successively made impressions that occupy a single imprint area on a web or sheet being imprinted, it will be seen that the term is applicable also, at least in an analogous sense, to designate the correct relationship to one another of two or more impressions occupying different but adjacent imprint areas along the length or across the width of a strip or web, and the term register is sometimes used herein in that sense. More specifically, the present invention is concerned with the problem of obtaining register (in the specialized meaning thereof) lengthwise along the strip or web.
  • Patent No. 2,890,653, issued June 16, 1959 to F. J. Kinzelman discusses the problems encountered in obtaining lengthwise register in the printing of metal and similar stiifmaterial in continuous strip form and discloses a a method and means for achieving such register.
  • the apparatus of the Kinzelman patent has proven to be generally successful, it is not capable of satisfactorily accomplishing one form of register printing which is of substantial commercial importance.
  • printed, decorated or lithographed metal containers and other articles of various types are provided with an aperture of some sort, and the impression on the finished article must be in register with this aperture.
  • the present While invention contemplates that a more efficient and expediapertures in the strip during the article forming operation, as a means of indexing the strip through the forming machine.
  • the apparatus of the Kinzelman patent it was possible to print successive impressions along the length of the strip in a desired relationship to one another, but it was at best very difiicult to imprint them in register with preformed apertures in the strip.
  • an object of this invention to provide apparatus of the character described, having an impression roller by which successive impressions are imprinted along the length of a continuous strip of metal or similar material and which is mounted at a fixed location along a defined path of lengthwise strip travel for rotation in engagement with the strip, and having means whereby the impression roller is in effect geared to the strip to insure that the successive impressions which it makes will he in lengthwise register with apertures spaced at regular intervals along the length of the strip, and wherein edge portions of the strip around the apertures are utilized as an element of such gearing.
  • Another specific object of this invention is to provide, in apparatus for printing and decorating metal in con tinuous strip form having apertures at regular interval along its length, a monitor roller havingspur or cog members that are adapted to meshingly engage in the apertures in the strip, and having a geared or similar transmission means drivingly connecting the monitor roller with an impression roller by which impressions are made on the strip, which transmission means constrains the impression roller to rotate in synchronism with the monitor roller and at a circumferential speed substantially equal to that of the monitor roller, to assure that each impression printed on the strip will be in lengthwise register with an aperture therein.
  • Another object of this invention is to provide means (for reducing to a negligible value the load forces which the strip and the spurs or cog members on the monitor roller present to one another to thus prevent any possibility of the cog members deforming the strip at the edge portions of theapertures therein, and to insure that the monitor roller will at all times have smooth meshing engagement with the strip.
  • the backup roller was used as a monitor roller for synchronizing the circumferential speed of the impression roller With the local linear speed ofthat portion of the strip lacing engaged by the impression roller.
  • the strip was wrapped partway around the circumference of the backup roller so as to undergo a change of direction in its path of travel at the backup roller. .In spite of the wrap of the strip about the backup roller, slippage could and did occur from time to time.
  • a more serious disadvantage arose from the fact that the backup roller engaged the inner radius of the wrapped portion of the strip while the impression roller engaged its outer radius, so that the circumferential speeds of said rollers had to ditfer slightly, by an amount pro portional to the thickness of the strip material, if register was to be accurately maintained.
  • the apparatus of the Kinzelman patent included a long term register control which effected changes in the speed relationship between the backup and impression rollers.
  • the present invention overcomes the disadvantages in the apparatus of the Kinzelman patent and has, as another of its objects, the provision in apparatus of the character described, of means affording a positive driving connection between the strip and the monitor roller whereby slippage between them is prevented.
  • FIGURE 1 is a more or less diagrammatic side elev-ational view of printing apparatus intended (for imprinting metal and similar substantially stiff material in continuous strip form, embodying the principles of this invention;
  • FIGURE 2 is a fragmentary view in oblique projection of the printing station of the apparatus shown in FIGURE 1;
  • FIGURE 3 is a top elevational View of the printing station shown in FIGURE 2.
  • the numeral 5 designates a strip of metal or similar stiff material having very substantial length and which is to be imprinted or decorated by means of the apparatus of this invention, designated generally by 6.
  • the strip follows a defined path which carries it from a source, such as a supply reel (not shown) successively through hold back rolls '7, a printing station 8, an oven 9, a cooler 10 and pull through rolls 11, and finally to a rewind stand '12 at which the strip is wound into a compact coil.
  • a source such as a supply reel (not shown) successively through hold back rolls '7, a printing station 8, an oven 9, a cooler 10 and pull through rolls 11, and finally to a rewind stand '12 at which the strip is wound into a compact coil.
  • the strip is drawn through the machine by the pull through rolls 11, which are drivingly connected, through suitable transmission means 13, with an electric motor 14 or other power drive means.
  • the pull through rolls tend to move the strip lengthwise at a substantially uniform speed, but for a number of reasons, explained at length in the aforesaid Kinzelman patent, the local linear speed of the strip at any given station in the machine (and notably at the printing station 8 with which this invention is primarily concerned) may vary more or less substantially from the nominal driving speed of the pull through rolls.
  • the hold back rolls 7 are provided with suitable rotation inhibiting means (not shown) by which they are caused to resist forward movement of the strip Without, however, actually preventing its advance through the machine.
  • the hold back rolls could be power driven at a constant speed while the transmission means 13 through which the pull through rolls are driven could include a clutch or similar constant torque drive means whereby the pull through rolls would have a tendency to draw the strip through the machine faster than the hold back rolls would allow it to progress.
  • the rewind reel 12 is suitably driven in a manner well known to those skilled in the art so as to wind the strip material into a coil at the same rate that it emerges from the machine.
  • the strip material upon which the apparatus of this invention is adapted to operate is provided with apertures 16 at regularly spaced intervals along its length.
  • the specific shape and arrangement of these apertures is 'of course dependent upon the containers or other articles to be formed up from the strip material after it is imprinted, but it is also within the spirit of the invention to provide the strip with apertures along a marginal edge portion thereof, possibly in the form of notches, which would be utilized only for purposes of maintaining register in accordance with the principles of this invention, such edge portion being subsequently out off of the strip and discarded.
  • apertures is used herein to refer not only to actual holes in the strip, but also to dimples, embostures and similar regularly spaced local deformations of the material that define the desired abutment means on the strip.
  • the punch or other means (not shown) for forming the apertures 16 can comprise one of the stations along the path of lengthwise strip travel through the machine or can be entirely apart from the machine. Obviously the incorporation of the punch into the path of strip travel through the printing machine is preferable from the standpoint of efficiency and expediency.
  • each printing couple comprises an impression roller 19 and a backup roller 20.
  • each impression roller 19 is shown as comprising a blanket or transfer roller oooperable with a plate roller 21, as in offset printing, but it will be understood that it could also be a roller of the direct impression type.
  • the monitor roller 23 and impression rollers 20, like all of the other rollers hereinbefore mentioned, are of course rotatable on axes which are fixed along the defined path of strip travel, being supported for such rotation on suitable frame means 30.
  • the function of the monitor roller 23 is to maintain penfect synchronism between the circumferential speed of the impression rollers and the linear speed of that portion of the strip with which they are engaged, and to thus insure that any given point on the impression surface (of each impression roller will recurrently engage points on the strip which bear a predetermined relationship lengthwise of the strip to the apertures 16 therein.
  • the monitor roller comprises a part of what is in efiect a geared connection between the strip and each impression roller, and which connection consists of cog-like radial projections or spur members 24 on the monitor roller that are mesllingly engageable in the apertures 16 in the strip, and rotation transmission means 25 which drivingly connects the monitor roller with each impression roller in a manner constraining all of said rollers to rotate in synchronism, at speeds which bear a predetermined relationship to one another.
  • Each of the cogs or spurs 24 has a size and shape to fit substantially closely in the apertures 16 in the strip so that the connection between the strip and the monitor roller is substantially without play or backlash.
  • the front and rear edge portions of each aperture in the strip provide iabutment cooperable with the opposing abutments provided by the circumferentially facing surfaces on the cogs to afford a load transmitting connection between the strip and the monitor roller.
  • the spacing of the spurs both axially and circumferentially on the monitor roller should be so related to the spacing of the apertures 16 across the width and along the length of the strip as to provide smooth meshing engagement between the spurs and the strip.
  • Smooth engagement of the cogs or spur members with the strip can be further promoted by tapering the cogs radially outwardly as shown.
  • the path of strip travel should carry it around a suflicient portion of the monitor roller periphery to insure that at least one cog, or rank of cogs, is at all times fully engaged in the strip.
  • the monitor roller will usually be necessary for the monitor roller to have a circumference which is an integral multiple of the circumference of the impression roller (with the qualification hereinafter noted concerning the thickness of the strip material), and the transmission means 25 by which the rotation of the rollers is synchronized will have to provide a corresponding rotational speed ratio between the monitor and impression rollers.
  • the gear connection of the monitor roller to the strip will be provided by suitable wells or sockets in the monitor roller, opening to its cylindrical surface and closely fitting the male abutment means on the strip.
  • the rotation transmission means 25 which drivingly connects the monitor roller with the impression roller or rollers comprises a train of gears of the type that are substantially free from backlash, and which establish the required rotational speed ratio between the monitor and impression rollers.
  • the relative diameters of the monitor and impression rollers should be so chosen as to make due allowance for the thickness of the strip material and its flexing as it passes around the monitor roller, bearing in mind that the monitor roller periphery engages the rear surface of the strip on an inside radius while the impression rollers engage its front surface.
  • each impression roller will normally be an integral multiple of that of the monitor roller, without regard to thickness of the strip, and consequently the impressions made by the impression rollers will always be in register with the apertures in the strip, regardless of any variations in the thickness of the strip.
  • the rotational speed ratio between the monitor and impression rollers is so chosen that the circumferential speed of the impression roller is exactly equal to the local linear speed of that portion of the strip which it engages; but in some special circumstances the gear "train 25 might be so arranged as to provide the impression roller with a circumferential speed which is in some other predetermined ratio to strip speed than the normal one-to-one.
  • the monitor roller is located as close as possible to the printing couples along the path of lengthwise strip travel, to insure that the local speed of the strip at the monitor roller will at all times be equal to that at the impression rollers.
  • a constant torque drive means 27 which is idrivingly connected to the rollers 19 and 23 and which supplies enough torque to said rollers to turn them at a circumferential speed which approximates the linear speed of the strip; and the nec essary corrective torque to bring the circumferential speed of said rollers to exactly the local linear speed of the strip is derived from the small load which is presented to the strip by means of the spur members.
  • the constant torque drive means can have its output shaft 28 directly coaxially connected to either of them, or even to one of the gears of the transmission 25, but in this case it is illustrated as having a direct driving connection to the monitor roller 23.
  • the constant torquedrive means comprises a constant speed motor 31 which is coupled to the roller train through a slip clutch 32 and a speed reducer 33.
  • the speed reducer may be a conventional gear box transmission and is provided for the purpose of matching the motor speed to the required speed of the monitor roller.
  • the slip clutch 32 which assures the imposition of a constant torque force upon the rollers, regardless of their rotational speed, is preferably of the eddy current or hysteresis type, to avoid the necessity for periodic adjustment to compensate for frictional wear on mechanical clutch surfaces.
  • the rollers 19 and 23 are driven, in the absence of the strip, at a circumferential speed which is equal to the nominal forward speed of the strip through the machine.
  • the local speed of the strip through the printing couples increases or decreases to values above or below that nominal speed, light load forces will be imposed upon the spur members 24 by which the monitor and impression rollers will be accelerated or decelerated to maintain their circumferential speeds at all times exactly equal to the local linear speed of the strip, it being understood that the circumferential speed of the monitor roller is equated to the linear speed of the smaller radius rear face of the strip in contact therewith.
  • the provision of the constant torque drive means not only prevents deformationof the strip by the spur members but also insures smooth meshing engagement between the strip and the spur members, due to the small loads which the strip and spur members present to one another, and thus further insures that the successive impressions made by each impression roller will be accurately in lengthwise register with the apertures in the strip.
  • this invention provides means for so controlling the rotation of an impression roller in apparatus for printing metal and similar stiff material in continuous strip form that the successive impressions made by the impression roller will all be in accurate register with apertures in the strip located at regularly spaced intervals along its length.
  • said constant torque drive means connected with said rollers comprises a constant speed motor; and wherein said motor is drivingly connected with one of said rollers through transmission means that comprises means permitting variations in the relative speeds of the motor and said one roller without disruption of the torque transmitting relation therebetween.
  • the monitor roller has a circumference which is substantially a multiple of the circumference of the impression roller; and wherein the defined path of strip travel disposes the strip partway around the monitor roller, with at least one of said coglike radial projections on the monitor roller at all times engaged in an aperture in the strip.
  • the apparatus of claim 1 further characterized by: a backup roller mounted adjacent to the impression roller, at the face of the strip opposite to that engaged by the impression'roller, cooperable with the impression roller to define a portion of the path of strip travel and by which the strip is held engaged with the impression roller, said backup roller being freely rotatable so as to be driven by the strip itself.
  • the apparatus of claim 1 further characterized by: a second impression roller mounted for rotation about a fixed axis at another location along the path of strip travel; and second transmission means providing a positive driving connection between the second impression roller and the first mentioned rollers and constraining the second impression roller to rotate in synchronism with the first designated impression roller so that impressions made upon the strip by said impression rollers are in register with one another as well as with the apertures in the strip.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
US111784A 1961-05-22 1961-05-22 Rotary printing press for apertured continuous metal strip Expired - Lifetime US3102472A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US111784A US3102472A (en) 1961-05-22 1961-05-22 Rotary printing press for apertured continuous metal strip
GB13782/62A GB959941A (en) 1961-05-22 1962-04-10 Improvements in or relating to apparatus for printing impressions upon a continuous strip of metal or the like
SE403662A SE219769C1 (fr) 1961-05-22 1962-04-11
BE617785A BE617785A (fr) 1961-05-22 1962-05-17 Presse rotative pour impression de bandes de métal continues comportant des ouvertures.
DK230162AA DK103943C (da) 1961-05-22 1962-05-22 Maskine til trykning på en kontinuert bane af metal eller lignende stift materiale.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US111784A US3102472A (en) 1961-05-22 1961-05-22 Rotary printing press for apertured continuous metal strip

Publications (1)

Publication Number Publication Date
US3102472A true US3102472A (en) 1963-09-03

Family

ID=22340444

Family Applications (1)

Application Number Title Priority Date Filing Date
US111784A Expired - Lifetime US3102472A (en) 1961-05-22 1961-05-22 Rotary printing press for apertured continuous metal strip

Country Status (5)

Country Link
US (1) US3102472A (fr)
BE (1) BE617785A (fr)
DK (1) DK103943C (fr)
GB (1) GB959941A (fr)
SE (1) SE219769C1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3213785A (en) * 1964-01-13 1965-10-26 Joseph A K Kramer Machine for perforating tape and printing indicia thereon
US3610147A (en) * 1968-12-02 1971-10-05 New Jersey Machine Corp Offset printing web feed control
US3650207A (en) * 1967-02-23 1972-03-21 Black James Flat bed web press index and registration
US4051776A (en) * 1974-03-13 1977-10-04 Johannes Zimmer Downstream web tensioning for rotary screen printer
US4059069A (en) * 1976-08-30 1977-11-22 The Arnold Engineering Company Coating apparatus
US4275655A (en) * 1979-01-23 1981-06-30 The Arnold Engineering Company Method and apparatus for screen printing registered images on opposite sides of a web
US4957044A (en) * 1989-06-19 1990-09-18 Cronin John V Double sided screener for printed circuit boards
EP0449220A1 (fr) * 1990-03-29 1991-10-02 ENAMEL PRODUCTS & PLATING COMPANY Procédé et dispositif pour la création de dessins à repérage sur une bobine de ruban métallique
US5265531A (en) * 1991-08-27 1993-11-30 John Cronin Reciprocally shuttled double sided screener with tiltable print squeegee
US5447566A (en) * 1993-12-27 1995-09-05 Autographic Business Forms, Inc. Paper coating and drying machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2429425A (en) * 1942-09-24 1947-10-21 Bendix Aviat Corp Driving mechanism
US2773688A (en) * 1951-06-05 1956-12-11 Fred A Ross Web manifolding method and apparatus
US2890653A (en) * 1955-03-30 1959-06-16 Jerome R Share Rotary printing press for continuous metal strip
US2899199A (en) * 1959-08-11 Rstobb
US2969733A (en) * 1956-09-26 1961-01-31 Borch-Madson Andreas Vilhelm Multi-color printing on continuous metal bands
USRE25134E (en) * 1962-03-13 Rotary printing press for continuous metal strip

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899199A (en) * 1959-08-11 Rstobb
USRE25134E (en) * 1962-03-13 Rotary printing press for continuous metal strip
US2429425A (en) * 1942-09-24 1947-10-21 Bendix Aviat Corp Driving mechanism
US2773688A (en) * 1951-06-05 1956-12-11 Fred A Ross Web manifolding method and apparatus
US2890653A (en) * 1955-03-30 1959-06-16 Jerome R Share Rotary printing press for continuous metal strip
US2969733A (en) * 1956-09-26 1961-01-31 Borch-Madson Andreas Vilhelm Multi-color printing on continuous metal bands

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3213785A (en) * 1964-01-13 1965-10-26 Joseph A K Kramer Machine for perforating tape and printing indicia thereon
US3650207A (en) * 1967-02-23 1972-03-21 Black James Flat bed web press index and registration
US3610147A (en) * 1968-12-02 1971-10-05 New Jersey Machine Corp Offset printing web feed control
US4051776A (en) * 1974-03-13 1977-10-04 Johannes Zimmer Downstream web tensioning for rotary screen printer
US4059069A (en) * 1976-08-30 1977-11-22 The Arnold Engineering Company Coating apparatus
US4126511A (en) * 1976-08-30 1978-11-21 Arnold Engineering Company Coating selected areas of a substrate
US4275655A (en) * 1979-01-23 1981-06-30 The Arnold Engineering Company Method and apparatus for screen printing registered images on opposite sides of a web
US4957044A (en) * 1989-06-19 1990-09-18 Cronin John V Double sided screener for printed circuit boards
EP0449220A1 (fr) * 1990-03-29 1991-10-02 ENAMEL PRODUCTS & PLATING COMPANY Procédé et dispositif pour la création de dessins à repérage sur une bobine de ruban métallique
AU642715B2 (en) * 1990-03-29 1993-10-28 Sequa Corporation Method of creating a registered pattern on a metal coil and associated apparatus
US5265531A (en) * 1991-08-27 1993-11-30 John Cronin Reciprocally shuttled double sided screener with tiltable print squeegee
US5447566A (en) * 1993-12-27 1995-09-05 Autographic Business Forms, Inc. Paper coating and drying machine

Also Published As

Publication number Publication date
DK103943C (da) 1966-03-14
BE617785A (fr) 1962-09-17
GB959941A (en) 1964-06-03
SE219769C1 (fr) 1968-04-02

Similar Documents

Publication Publication Date Title
US3102472A (en) Rotary printing press for apertured continuous metal strip
US2548136A (en) Register control means for continuous and intermittent web feed mechanism
US3791294A (en) Printing press
US1905446A (en) Film backing paper making machine
IT8422653A1 (it) Macchina da stampa flessografica con comando di moto senza ingranaggi
DE3713666C2 (de) Verfahren zum Aufprägen und Präge-Rotationsmaschine
DE3149950C2 (de) Vorrichtung zum Übertragen von Druckdekors
US2140834A (en) Printing apparatus
US4475457A (en) Roller marker
US2889767A (en) Marking apparatus
US3081700A (en) Register control for printing continuous metal strip
US3335928A (en) Control of web elongation
US2881836A (en) Blanking and stacking machine
US3332301A (en) Gear drive
USRE25134E (en) Rotary printing press for continuous metal strip
US2890653A (en) Rotary printing press for continuous metal strip
US3808969A (en) Replicating apparatus with locking means
US3610147A (en) Offset printing web feed control
US3834309A (en) Rotary screen printer with programmable screen interrupt
CN207986306U (zh) 一种卷料薄膜同步输送机构
US3645203A (en) Press for web printing having intermittent paper-feeding means
US1970368A (en) Printing press
GB1253877A (en) Means for pulling strip sheet material
US3052182A (en) Web-fed printing machines
US2748697A (en) Web feed control for printing and die-cutting press