US3304860A - Screen printing machine and cylindrical screen mounting - Google Patents

Screen printing machine and cylindrical screen mounting Download PDF

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Publication number
US3304860A
US3304860A US395878A US39587864A US3304860A US 3304860 A US3304860 A US 3304860A US 395878 A US395878 A US 395878A US 39587864 A US39587864 A US 39587864A US 3304860 A US3304860 A US 3304860A
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US
United States
Prior art keywords
screen
ring
sleeve
supporting
printing machine
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
US395878A
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English (en)
Inventor
Winden Johannes Bernardus Der
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.)
Gebr Stork and Companies Apparatenfabriek NV
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Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3304860A publication Critical patent/US3304860A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/34—Screens, Frames; Holders therefor
    • B41F15/38—Screens, Frames; Holders therefor curved

Definitions

  • My invention relates to a screen printing machine, comprising a movable surface for supporting material to be printed upon and further comprising at least two hearing devices, each for one cylindrical screen which is adapted to cooperate with the supporting surface, and a mechanism for mutually coupling rotatively the various bearing devices.
  • My invention further aims at obtaining a considerable simplification in indexing, and also in the mounting and removal of a screen.
  • FIG. 1 is a side view of the machine, in which the essential elements are shown.
  • FIG. 2 is a section on an enlarged scale, in a plane at right angles to that of FIG. 1, of a bearing device with a cylindrical screen mounted therein.
  • the screen printing machine consists of a frame 1, on which is arranged an endless belt 2, which is adapted to travel in a continuous path between a driving pulley 3 and an idler 4.
  • this belt 2 forms a surface for supporting the I material 6 to be printed upon, which is unrolled from a supply roll, not shown.
  • Mounted on the frame 1 is a driving motor 7, which transmits the driving force via a connecting rod 8 to the pulley 3.
  • Above the path 5 are provided a number of bearing devices 9 for cylindrical screens 10.
  • the material 6 printed upon is delivered, on the side of the machine to the left of FIG. 1, to an apparatus, not illustrated, for the further treatment of this material.
  • a device 11 for washing the belt On the underside of the continuous path traversed by the belt 2 a device 11 for washing the belt, a tension device 12, and a device 13 for applying an adhesive layer on the belt 2 are present, so that after passing around the idler 4 this belt can support the material 6 to be printed upon and grip it temporarily. After the material 6 has been released at the end of the machine to the left of FIG. 1, the remnants of adhesive are removed from the belt 2 by means of the washing device 11.
  • Each of the screens 10 is provided at its ends with an adapter ring 14, which serves in the first place to secure the screen in the bearing device 9, and also to adapt the diameter of the screen to the diameter of the supporting element of the bearing device 9 on which the end of the screen is directly supported.
  • this supporting element is formed by a sleeve 15, whose outer circumference is provided with teeth 16 forming part of its drive coupling with another bearing device.
  • This coupling comprises the gear wheels 17 and 18 as well as the worm drive 19. The latter is described in greater detail in, and forms the subject-matter of, my copending patent application Serial No. 395,656, filed September 11, 1964.
  • a locking member 20 Fitted on the supporting sleeve 15 is a locking member 20, in the form of a key, which cooperates with a complementary locking member in the ring 14 of the screen, in this case a groove.
  • a tube 21 is rotatably supported, this tube being provided at its inner end with screw thread 22, adapted to cooperate with a mating screw thread on the ring 14 of the screen.
  • the part of the tube 21 protruding beyond the sleeve 15 is provided with a collar 23, which abuts the outer end of the sleeve 15. This collar can be engaged by a spanner (not shown) for tightening the tube 21 on the ring 14 of the screen.
  • the supporting sleeve 15 is provided with a lengthened portion 24 which extends over an arc of nearly 180, in the centre of which portion the locking key 20 is fitted.
  • This lengthened portion forms a saddle, in which the ring 14 of the screen 10 is seated.
  • Each screen ring 14 is provided with at least one key groove for cooperation with the key 20.
  • the number and the arrangement of these grooves depends on the diameter of the screen 10 and the centre distance between two adjacent bearing devices 9.
  • a value that can be used in practice consists of a centre distance of 320 mm. between two bearing devices for use with screens having a circumference of 480 or 640 mm. respectively.
  • a screen printing machine comprising a movable surface for supporting material to be printed upon, a cylindrical screen disposed adjacent said surface for printing on material supported by said surface, said screen having an adaptor ring on each end thereof, a bearing device for supporting said screen, said bearing device having means for supporting each screen adaptor ring and including a driven sleeve having a segmental arcuate projection having an are not greater than 180 and extending from one end thereof toward the screen and constituting a saddle seating said screen adaptor ring beyond said one end of said sleeve for ready mounting and removal of said ring relative to said saddle, means in said sleeve releasably retaining said ring in said saddle, and lock means between said saddle and said ring for rotatively securing said sleeve and screen.
  • said lock means comprises a key disposed centrally of said saddle projection, and a plurality of keyways in each adaptor ring and symmetrically spaced therearound for selective engagement with said key for indexing the respective screen.
  • a screen printing machine comprising a movable surface for supporting material to be printed upon, a plurality of cylindrical screens disposed adjacent said surface for printing on material supported by said surface, said screens having an adaptor ring on each end thereof, a plurality of bearing devices for respectively supporting said screens and including means for supporting said screen adaptor rings, means coupling said bearing device supporting means for simultaneous rotation of said screens, each said supporting means including a sleeve having means engaging said coupling means and a tube rotatable within said sleeve, said screen adaptor ring being mounted in the inner end of said sleeve and threadedly engaged with the inner end of said tube, lock means between said sleeve and said ring and including a key in said sleeve and a keyway on said ring, and a collar on the outer end of said tube and abutting the outer end of said sleeve for rotating said tube to adjust said screen ring axially of said sleeve.
  • each supporting sleeve has a semicylindrical projection on its inner end and constituting a saddle supporting the respective adaptor ring, the locking key being disposed centrally of the arc of said saddle projection.
  • a screen printing machine wherein the circumference of each screen has a value which equals 1 /2 to 2 times the center distance between two adjacent bearing devices.
  • a screen printing machine wherein the center distance between two adjacent bearing devices is 320 mm.
  • a screen printing machine wherein said adaptor rings are provided with a plurality of keyways spaced symmetrically therearound for selective cooperation with said key for indexing the respective screen.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)
US395878A 1963-09-12 1964-09-11 Screen printing machine and cylindrical screen mounting Expired - Lifetime US3304860A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL63297819A NL141428B (nl) 1963-09-12 1963-09-12 Zeefdrukmachine.

Publications (1)

Publication Number Publication Date
US3304860A true US3304860A (en) 1967-02-21

Family

ID=19755041

Family Applications (1)

Application Number Title Priority Date Filing Date
US395878A Expired - Lifetime US3304860A (en) 1963-09-12 1964-09-11 Screen printing machine and cylindrical screen mounting

Country Status (5)

Country Link
US (1) US3304860A (de)
AT (1) AT256143B (de)
CH (1) CH425835A (de)
DE (1) DE1921520U (de)
NL (1) NL141428B (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3556004A (en) * 1967-05-26 1971-01-19 Zimmer Johannes Device on rotary printing machines
DE2401575A1 (de) * 1973-04-09 1974-10-17 Cranston Print Works Co Druckwalze fuer ein druck- bzw. farbdruckverfahren
US3934505A (en) * 1973-12-10 1976-01-27 Bernard Screen Printing Corporation Method and apparatus for synchronous printing of a moving web
US4909143A (en) * 1987-10-09 1990-03-20 Stork Brabant B.V. Multicolor, rotary screen printing machine and a stepped variable gear drive from a machine of this type
US20070017583A1 (en) * 2005-07-06 2007-01-25 Fangrow Thomas F Jr Medical connector with closeable male luer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US637565A (en) * 1894-11-28 1899-11-21 Edward Hett Device for distributing water.
US2071824A (en) * 1933-10-13 1937-02-23 Poster Products Inc Stencil printing machine
US2468400A (en) * 1945-05-12 1949-04-26 William C Huebner Porous printing cylinder
US2928340A (en) * 1957-03-21 1960-03-15 Stein Textile printing machine
GB844557A (en) * 1958-06-16 1960-08-17 Morrison Machine Co Textile printing machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US637565A (en) * 1894-11-28 1899-11-21 Edward Hett Device for distributing water.
US2071824A (en) * 1933-10-13 1937-02-23 Poster Products Inc Stencil printing machine
US2468400A (en) * 1945-05-12 1949-04-26 William C Huebner Porous printing cylinder
US2928340A (en) * 1957-03-21 1960-03-15 Stein Textile printing machine
GB844557A (en) * 1958-06-16 1960-08-17 Morrison Machine Co Textile printing machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3556004A (en) * 1967-05-26 1971-01-19 Zimmer Johannes Device on rotary printing machines
DE2401575A1 (de) * 1973-04-09 1974-10-17 Cranston Print Works Co Druckwalze fuer ein druck- bzw. farbdruckverfahren
US3858507A (en) * 1973-04-09 1975-01-07 Cranston Print Works Co Cylindrical stencil with plastic end rings
US3934505A (en) * 1973-12-10 1976-01-27 Bernard Screen Printing Corporation Method and apparatus for synchronous printing of a moving web
US4909143A (en) * 1987-10-09 1990-03-20 Stork Brabant B.V. Multicolor, rotary screen printing machine and a stepped variable gear drive from a machine of this type
US20070017583A1 (en) * 2005-07-06 2007-01-25 Fangrow Thomas F Jr Medical connector with closeable male luer

Also Published As

Publication number Publication date
AT256143B (de) 1967-08-10
NL141428B (nl) 1974-03-15
CH425835A (de) 1966-12-15
DE1921520U (de) 1965-08-19

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