|Publication number||US3559568 A|
|Publication date||Feb 2, 1971|
|Filing date||Jan 14, 1969|
|Priority date||Jan 14, 1969|
|Publication number||US 3559568 A, US 3559568A, US-A-3559568, US3559568 A, US3559568A|
|Inventors||Stanley Edward W|
|Original Assignee||Armstrong Cork Co|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (11), Referenced by (57), Classifications (23)|
|External Links: USPTO, USPTO Assignment, Espacenet|
O Umted States Patent 1 1 3,559,568
 Inventor Edward W. Stanley 2,768,827 10/1956 Noble 101/181 Lancaster, Pa. 2,802,666 8/1957 Crosfield 101/1 81X ] App]. No 791,087 2,840,370 6/1958 Noble 101/181 [22 Filed Jan. 14, 1969 3,045,165 7/1962 Littwin 318/286  Patented Feb. 2,1971 3,068,787 12/1962 DAllOglio et a1. 101/181  Assignec Armstrong Cork Company 3,102,471 9/1963 Auer et al 101/181 Lancaster, Pa. 3,120,181 2/1964 Thiede 101/181 a corporation of Pennsylvania 3,264,983 8/1966 Lewis et a1 101 l 81 3,329,087 7/1967 Sandor et al v. 101/181 3,500,744 3/1970 Lewis 4. 101/23  METHOD OF CONTROLLING PATTERN REPEAT LENGTH Primary Examiner-William B. Penn 1 Claim, 1 Drawing Fig. Attorney-Clifford B. Price  U.S.C1 101/32, 101/181;250/2191226/28z318/286;101/248, 101/219  Int. Cl B44c 1/24, TR CT; The method f controlling the repeat kngth f a B41f13/10IG01l'12l/30 pattern to be embossed on sheet flooring. The embossed  Field of Search 101/23, 22, material is provided with register marks which appear Once f 185, 250/219, each pattern length. Photocells scan the register marks on the 219121219186 2191131 26/283019 31; 318/286 embossed product and sense any deviation from a predetermined spacing. The information sensed by the photocells is  References cued transmitted to a computer which operates a DC correction UNITED STATES PATENTS motor to adjust the drive of the embossing roll to return the 2,583,580 1/ 1952 Ludwig 250/219X spacing of the register marks to the predetermined spacing.
mmmrwz 1971 I 3,559,568
INVENT OR EDWARD W- STANLEY W 9pm ATTORNEY METHOD OF CONTROLLING PATTERN REPEAT LENGTH BACKGROUND OF THE INVENTION l. Field of the Invention The invention relates generally to rotary printing and/or embossing equipment and, more particularly, to rotary embossing equipment providing a repeat at a controlled spacing.
2. Description of the Prior Art The state of the art in the flooring industry has reached a point that it is now necessary to provide goods with an embossed design, which embossed design must match up with the design on adjacent goods to form a continuous-type design. In other words, flooring is being made so that it has an embossed design; and in order to secure the proper registration of one sheet of flooring with an adjacent sheet so that the sheets blend into an overall configuration, it is necessary that the sheets be embossed with the same pattern repeat length for each sheet.
If the embossing roll forming the sheet material moves too fast relative to the sheet material, the repeat length of the embossed pattern is compressed, while too slow movement of the embossing roll relative to the sheet material will cause the stretching out of the embossed pattern. Consequently, it is necessary that the embossing roll and sheet material move at exactly the proper relative speeds at all times. Due to normal wear, slippage and other factors in the production line, it is impossible normally to maintain the speed of the sheet material and the embossing roll the same all the time. There is a tendency for the speed of one relative to the other to be either too fast or too slow, and this in turn results in a shrinking or stretching of the embossed pattern. Consequently, when the sheet material is installed with the repeat lengths varying, the designs on adjacent sheets will not be in coordination.
At present, the only way being used to see that the repeat length of the embossed pattern is maintained is a manual conpattern which must be trol procedure. An inspector measures the repeat spacing of the embossed patterns shortly after they are formed on the sheet. If any irregularity is discovered, a manual control is operated to retard or speed up the drive for the embossing roll. Such an operation is barely acceptable at best as a means of controlling the repeat spacing of the embossed patterns.
It is the object of the invention herein to provide an auto matic structure for measuring and controlling the repeat spacing of embossed patterns on sheet goods. The automatic measurement is then used through a computer-type structure to automatically adjust the speed of the embossing roll to bring the pattern repeat spacings back into the required predetermined spacing.
SUMMARY OF THE INVENTION The invention here is the provision of a repeat control mechanism being provided on a conventional sheet flooring embossing line. A lower drive backup roll is placed under the sheet material, while over the sheet material is placed the embossing roll. The lower roll is direct motor driven while a mechanical differential transmission is connected between the drive for the lower roll and the drive shaft of the embossing roll. Therefore, it is possible to minutely change the speed of the upper roll relative to the lower roll.
The upper roll embosses registration marks on the sheet material along with the embossed pattern. These registration marks indicate the repeat length being generated on the goods. A photocell structure senses the marks on the sheet material; and since these photocells are spaced at the desired repeat length, failure of the two photocells to sense a signal at the same instance indicates a deviation from this desired repeat length. A computer-type structure takes the variation and converts it into the necessary information to drive a DC correction motor. The DC correction motor is connected to the differential drive transmission so as to vary the speed of the embossing roll to return the pattern repeat spacing to the correct dimension.
BRIEF DESCRIPTION OF THE DRAWING The single FIGURE of the drawing is a perspective view of the invention herein.
DESCRIPTION OF THE PREFERRED EMBODIMENT The sheet material 2 is a conventional vinyl floor covering which is approximately .090 inch thick. The material is fed over a drive and backup roll 4. Directly above roll 4 is an embossing roll 6 which is used to emboss the sheet material with a design pattern. Obviously the embossed pattern will be a repeat pattern since a roll embosser is being used. The upper roll 6 has a registration marks 8 which are formed on the sheet material as registration marks It). The spacing between any two adjacent registration marks 10 is an indication of the length of a repeat pattern. A conventional motor 12 drives the lower roll 4. Appropriate connecting mechanism 14 connects motor 12 to a differential draw transmission 16. The transmission I6 is in turn connected with the embossing roll 6 and drives this roll. Ideally, both rolls would be moving at the same speed, and the sheet material 2 would be moving also at the same speed.
Due to any number of factors such as wear on the drive machinery, slippage along the production line, etc., the sheet material 2 may be driven at a speed greater than or less than the circumferential speed of the embossing roll. When the cincumferential speed of the embossing roll and the sheet material differ, this will vary the repeat spacing. Too fast movement of the embossing roll relative to the sheet material causes the repeat spacing to be smaller than the standard repeat spacing while too slow movement of the embossing roll relative to the sheet material causes the repeat spacing to be longer than the standard repeat spacing. v
When the spacing between any two registration marks I0 varies from the standard, it is necessary to immediately note this factor and correct the speed of the embossing roll.
The apparatus for correcting the speed of the embossing roll utilizes two photocells which are mounted on a common mounting bar. The first photocell 18 is fixedly mounted while the second photocell 20 is adjustably mounted so tat the two photocells may be set apart the standard repeat spacing. The photocells are positioned to sense the register reference marks 10. If both photocells sense marks at the same instance, then the repeat spacing must be the required standard spacing. When the photocells sense marking at different instances, it is, therefore, necessary to correct the speed of the embossing roll. Depending on whether the repeat length is shorter than the standard or longer than the standard, either photocell 18 or 20 will sense the mark first; and the time difi'erence between the sensing of the marks by the two photocells will indicate the amount of error. The particular cell which senses first detennines in which direction the error exists.
The infon'nation secured by the photocells is fed to a computer-type structure 22, which is similar to that shown in U.S. Pat. No. 3,073,997, issued Jan. 15, 1963. Such acomputertype structure is conventional in the art and merely takes the information sensed by the photocells and generates a correction signal. The correction signal indicates in which direction and by what magnitude there is an error in the repeat spacing. The correction signal is fed to a DC correction motor 24, which is connected to the differential draw transmission 16. Depending upon whether the repeat spacing is too long or too short and to what extend, the DC correction motor operates to alter the transmission so that the speed of the embossing roll is changed in the right direction and by the right magnitude to return the repeat pattern spacing to its correct spacing.
While the preferred embodiment describes an embossed operation, the concept is equally applicable to a rotary printlug operation wherein the printing operation merely provides the repeat spacing of the embossed pattern, positioning two photocells relative to the registration marks, spacing the photocells apart the distance of the standard desired repeat spacing, sensing the registration marks with the photocells, feeding the sensing of the photocells to a computer means,
which fails to operate when both photocells sense marks at the same instance, but operates to create a correction signal when the photocells sense marks at different instances, providing a power drive for the embossing roll, providing a DC correction motor drive for the power of the embossing roll to adjust its speed and feeding the correction signal from the computer means to the DC correction drive whereby variations in pattern repeat spacing as sensed by the photocell structures is fed to the computer means to generate a correction signal to operate the embossing roll drive to correct the speed of the embossing roll drive to return the repeat pattern spacing to the required standard spacing.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US2583580 *||Jan 8, 1947||Jan 29, 1952||Askania Regulator Co||Web register control system|
|US2768827 *||Jun 7, 1952||Oct 30, 1956||Electric Eye Equipment Company||Registration control device|
|US2802666 *||Oct 29, 1954||Aug 13, 1957||Crosfield J F Ltd||Register control systems for moving webs|
|US2840370 *||Aug 7, 1956||Jun 24, 1958||Electric Eye Equipment Co||Registration control or indicating device|
|US3045165 *||Jan 30, 1957||Jul 17, 1962||Littwin Arthur K||Electrical control means|
|US3068787 *||May 17, 1961||Dec 18, 1962||Caldara Viale E||Device for checking longitudinal registration on machines for performing repetitive operations on a continuous band|
|US3102471 *||Apr 3, 1961||Sep 3, 1963||Champlain Company Inc||Multiple correction registration system for multi-color printing press|
|US3120181 *||Nov 3, 1960||Feb 4, 1964||Hurletron Inc||Circumferential registration control|
|US3264983 *||Feb 18, 1964||Aug 9, 1966||Champlain Company Inc||Registration system for a moving web|
|US3329087 *||Nov 30, 1964||Jul 4, 1967||Huck||Regulation of repetitive pattern repeat length on a web|
|US3500744 *||Aug 17, 1967||Mar 17, 1970||Modern Engraving & Machine Cor||In-line carriage arrangement for embossing machines|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3694634 *||Aug 16, 1971||Sep 26, 1972||Armstrong Cork Co||Pattern repeat length control system|
|US3774016 *||Oct 4, 1971||Nov 20, 1973||Sun Chemical Corp||Control of process according to registration indicia on material being processed|
|US3832064 *||Dec 29, 1972||Aug 27, 1974||Armstrong Cork Co||Pattern length measurement and control by continuous-statistical-correlation|
|US3867889 *||Aug 3, 1973||Feb 25, 1975||Stahl Urban Co||Apparatus for seaming pieces of textile fabric or the like|
|US3945317 *||Jun 28, 1973||Mar 23, 1976||Umberto Brasa||Web registration system using retrograde web movement|
|US3974766 *||Jul 1, 1974||Aug 17, 1976||Peter Zimmer||Process for imprinting spaced-apart web sections with a composite pattern|
|US3987723 *||Mar 27, 1975||Oct 26, 1976||Sperry Rand Corporation||Phase adjustment mechanism for use with a magnetic read station of a band printer|
|US4009551 *||Apr 28, 1975||Mar 1, 1977||The Dow Chemical Company||Method and apparatus for registration of web material in forming filling and sealing industrial bags|
|US4072104 *||Nov 3, 1975||Feb 7, 1978||Harris-Intertype Corporation||Printing unit drive system|
|US4334471 *||Aug 18, 1980||Jun 15, 1982||Markem Corporation||Reference printing on moving surface|
|US4361260 *||Jun 27, 1980||Nov 30, 1982||Hanlan Marc A||Web registration control|
|US4366372 *||Aug 22, 1980||Dec 28, 1982||Innovative Design, Inc.||Apparatus and method for counting repetitive marks on a running web|
|US4389009 *||May 29, 1981||Jun 21, 1983||Kyoichi Yamashita||High speed tape feeder|
|US4538515 *||Oct 2, 1984||Sep 3, 1985||Marlin Manufacturing Corporation||Printing machine with programmed control of print cylinder motor and web tractor feed motor|
|US4541335 *||Nov 28, 1984||Sep 17, 1985||Rengo Co., Ltd.||Web printing apparatus with printing plate cylinder and web speed control|
|US4572752 *||Jun 22, 1984||Feb 25, 1986||Adolph Coors Company||Control stretch laminating device|
|US4590859 *||Mar 26, 1984||May 27, 1986||Monarch Marking Systems, Inc.||Method of printing by sensing variable indicia tag format length|
|US4598564 *||Jul 24, 1984||Jul 8, 1986||Kurt Held||Method of profiling metal strips|
|US4658144 *||Jul 17, 1985||Apr 14, 1987||Levi Strauss & Co.||System for alignment and feeding cooperating fabric parts in sewing operations|
|US4682540 *||Jun 12, 1986||Jul 28, 1987||Manville Corporation||Method for emobssing a non-repeating design|
|US4757930 *||Aug 29, 1986||Jul 19, 1988||Adolph Coors Company||Web indicia reference signal generating system|
|US4781317 *||Oct 27, 1986||Nov 1, 1988||Adolph Coors Company||Phasing control system for web having variable repeat length portions|
|US4896605 *||Feb 8, 1989||Jan 30, 1990||Asea Brown Boveri Ltd||Method of cut position determination for printing machines|
|US4947685 *||Oct 6, 1989||Aug 14, 1990||Am International, Inc.||System for measuring the repeat length of a moving web|
|US4984458 *||Jun 13, 1990||Jan 15, 1991||A.M. International, Inc.||System for measuring the relaxed length of a moving web|
|US5073053 *||Mar 5, 1990||Dec 17, 1991||Tokyo Electric Co., Ltd.||Color discrimination apparatus for color ink ribbon|
|US5081923 *||Dec 24, 1990||Jan 21, 1992||Enamel Products & Plating Company||Method of creating a registered pattern on a metal coil and associated apparatus|
|US5098507 *||Jan 28, 1991||Mar 24, 1992||Mao Chen Chi||Relieved plastic floor tile rolling press with an automatic alignment device|
|US5126578 *||Jul 13, 1990||Jun 30, 1992||Bobst Sa||Process and device for measuring displacement rates of a web running through a multi-color rotary printing press|
|US5208796 *||Jan 3, 1991||May 4, 1993||Xerox Corporation||Method and apparatus for transverse image registration on photoreceptive belts|
|US5295571 *||Jan 9, 1992||Mar 22, 1994||Rollin S.A.||Method for continuously controlling an endless band and machine for carrying out this method|
|US5766389 *||Jan 30, 1996||Jun 16, 1998||Kimberly-Clark Worldwide, Inc.||Disposable absorbent article having a registered graphic and process for making|
|US5815481 *||Jan 24, 1994||Sep 29, 1998||Xerox Corporation||Apparatus for transverse image registration of a photoreceptor belt|
|US5818719 *||Jan 30, 1996||Oct 6, 1998||Kimberly-Clark, Worldwide, Inc.||Apparatus for controlling the registration of two continuously moving layers of material|
|US5930139 *||Oct 14, 1997||Jul 27, 1999||Kimberly-Clark Worldwide, Inc.||Process and apparatus for registration control of material printed at machine product length|
|US5932039 *||Oct 14, 1997||Aug 3, 1999||Kimberly-Clark Wordwide, Inc.||Process and apparatus for registering a continuously moving, treatable layer with another|
|US5964970 *||Oct 14, 1997||Oct 12, 1999||Kimberly-Clark Worldwide, Inc.||Registration process and apparatus for continuously moving elasticized layers having multiple components|
|US5980087 *||May 4, 1998||Nov 9, 1999||Kimberly-Clark Worldwide, Inc.||Apparatus for controlling the registration of two continuously moving layers of material and an article made thereby|
|US6033502 *||Oct 14, 1997||Mar 7, 2000||Kimberly-Clark Worldwide, Inc.||Process and apparatus for registering continuously moving stretchable layers|
|US6092002 *||Oct 14, 1997||Jul 18, 2000||Kimberly-Clark Worldwide, Inc.||Variable tension process and apparatus for continuously moving layers|
|US6245168||Feb 24, 2000||Jun 12, 2001||Kimberly-Clark Worldwide, Inc.||Process and apparatus for registering continuously moving stretchable layers|
|US6264872 *||Dec 4, 1998||Jul 24, 2001||Kimberly-Clark Worldwide, Inc.||Method of forming thin, embossed, textured barrier films|
|US6652686||Jan 21, 2000||Nov 25, 2003||Kimberly-Clark Worldwide, Inc.||Processes and apparatus for making disposable absorbent articles|
|US6986820||Jun 27, 2003||Jan 17, 2006||Kimberly-Clark Worldwide, Inc.||Processes and apparatus for making disposable absorbent articles|
|US7458739 *||Apr 19, 2005||Dec 2, 2008||Seiko Epson Corporation||Apparatus for processing target sheet and method of controlling embossing by apparatus for processing target sheet|
|US20030105443 *||Jan 8, 2003||Jun 5, 2003||The Procter & Gamble Company||Absorbent article comprising mircroporous film with registration mark|
|US20030234069 *||Jun 27, 2003||Dec 25, 2003||Coenen Joseph Daniel||Processes and apparatus for making disposable absorbent articles|
|US20040245264 *||Apr 16, 2004||Dec 9, 2004||Mellet Kenneth J.||Apparatus for dispensing tickets|
|US20060000372 *||Apr 19, 2005||Jan 5, 2006||Seiko Epson Corporation||Apparatus for processing target sheet and method of controlling embossing by apparatus for processing target sheet|
|US20130129451 *||Jul 25, 2011||May 23, 2013||Do Hee Lee||Method for manufacturing the tab of a can so as to be able to use the end thereof for promotional use|
|USRE32967 *||Nov 25, 1986||Jun 27, 1989||Xerox Corporation||Web tracking system|
|EP0329701A1 *||Oct 22, 1987||Aug 30, 1989||Graphic Packaging Corporation||Phasing control system for web having variable repeat length portions|
|EP0329701A4 *||Oct 22, 1987||May 14, 1990||Coors Co Adolph||Phasing control system for web having variable repeat length portions.|
|EP0500467A1 *||Feb 20, 1992||Aug 26, 1992||Rollin S.A.||Procedure for continuously controlling an endless web and a machine for carrying out this procedure|
|WO1988003119A1 *||Oct 22, 1987||May 5, 1988||Adolph Coors Company||Phasing control system for web having variable repeat length portions|
|WO1991005219A1 *||Aug 27, 1990||Apr 18, 1991||Am International, Inc.||System for measuring the relaxed length of a moving web|
|WO2016180441A1 *||May 8, 2015||Nov 17, 2016||Hewlett-Packard Indigo B.V.||Measured sensor distance correction|
|U.S. Classification||101/32, 250/548, 318/286, 101/219, 101/181, 226/28, 101/248|
|International Classification||B65H23/188, B41F13/08, B41F13/14, B41F33/00, B41F13/02, B65H23/192|
|Cooperative Classification||B41F13/14, B65H23/192, B41F33/0081, B41F13/025, B65H23/1882|
|European Classification||B41F13/02R, B41F33/00H, B65H23/192, B41F13/14, B65H23/188A|