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US3291044A - Screen printing machine with interchangeable cylinders - Google Patents

Screen printing machine with interchangeable cylinders Download PDF

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Publication number
US3291044A
US3291044A US395880A US39588064A US3291044A US 3291044 A US3291044 A US 3291044A US 395880 A US395880 A US 395880A US 39588064 A US39588064 A US 39588064A US 3291044 A US3291044 A US 3291044A
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US
United States
Prior art keywords
belt
screens
supporting
screen
path
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
US395880A
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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
Original Assignee
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 US3291044A publication Critical patent/US3291044A/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
    • B41F15/08—Machines
    • B41F15/0831—Machines for printing webs
    • B41F15/0836—Machines for printing webs by means of cylindrical screens or screens in the form of endless belts

Definitions

  • My invention relates to a screen printing machine comprising an endless belt for supporting the material to be printed upon, which belt is adapted to move in a continuous path and travels between a driving pulley and an idler pulley along a substantially straight opea-rtive path, and further comprising a number of bearing devices for cylindrical screens, mounted along said path, which screens are adapted to cooperate with the supporting belt.
  • the supporting belt of course is not in itself rigid enough to resist the pressure exerted by the screens during operation. Hitherto a table top or a similar surface, over which the supporting belt travels, has been disposed underneath the belt. This involves some problems, the most important of which is the friction occurring between the belt and the table. This friction depends on the pressure which is exerted by the squeegee blade present in each of the screens. The frictional force causes an elongation in the supporting belt, which elongation affects the registration between the consecutive screens.
  • bearing and guiding means preferably consist of a belt supporting roll located opposite each of the screens.
  • each screen is lowered towards the supporting surface, and raised from it when the operation is interrupted.
  • This movable arrangement naturally involves complications as regards the correct guidance of the screen during movement towards and from the supporting surface.
  • FIG. 1 shows a diagrammatic side view of the whole machine.
  • FIG. 2 shows the part of the machine to the left of FIG. 1 on an enlarged scale, the driving gear being visible.
  • FIG. 3 shows a portion of the part of the machine to the right of FIG. 1 on an enlarged scale, the displacing mechanism for the supporting rolls being visible.
  • 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 pulley 4.
  • this belt 2 forms a surface for supporting the material 6 to be printed upon, which is unrolled from a supply roll, not shown.
  • a driving motor 7 mounted on the frame 1 is a driving motor 7, which transmits the driving force via a connecting rod 8 to the pulley 3.
  • 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 is a device 11 for washing the belt, a tension device 12, and a device 13 for applying an adhesive layer on the belt 2, 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 meansof the Washing device 11.
  • a supporting roll 14 on which the belt 2 rests, is arranged opposite each of the screens 10. These supporting rolls 14 are adapted to move towards the corresponding screen 10 and away from it. This can best be seen in FIGS. 2 and 3.
  • each supporting roll 14 is mounted on a lever 15, which is adapted to pivot about a fixed pivot 16.
  • the levers 15 are jointly operated by a rod 17, which is mounted pivotally on an arm 13, which is rotat ably connected at 19 with the frame of the machine and is connected at its other end 24) with a piston rod 21 of a hydraulic adjusting piston 22.
  • a stop 23 adapted to pivot about a shaft 24.
  • the cylinder 22 is able to move the arm 18 away from the stop 23, in which case the supporting rolls 14 are lowered and the belt 2 is released from the screen 10 (position shown in FIG. 2).
  • the cylinder 22, however, can also move the arm 18 in the other direction, so that this arm comes into contact with the stop 23 (position shown in FIG. 3).
  • the belt 2 is lifted slightly by the supporting rolls 14 as compared with the free position according to FIG. 2, so that contact can be established between the material 6 resting on this belt and the screens Ill.
  • the screen printing machine according to my invention is suitable for the use of screens having two different dia-meters. These screens are designated diagrammatically in FIG. 3 by 10 and 10". With a view to this, the stop 23 is formed by a cam with two boundary profiles 25 and 25", in consequence of which two positions for each supporting roll 14 are demarcated. These positions are designated by I and II in FIG. 3. These positions are demarcated in such a Way that they are symmetrical relative to a plane parallel to the operative path of the supporting belt 2 and passing through the pivot 16 of the lever 15'. In this way it is ensured that the zone along which each of the screens 10 comes into contact with the material 6 to be printed upon is invariably situated vertically below the centre of each screen.
  • the curvature of the boundary profiles 25' and 25" is not concentric with the shaft 24 of the stop 23. I Thus it is possible, by means of a small pivoting movement of the stop, to obtain some correction or adaption of the operative position of the supporting rolls 14.
  • the stop 23 is provided with an arm 26, which not only makes possible an adjustment through 180 (when passing from the use of a small screen to that of a large screen 10 or vice versa), but by means of which it is also possible to effect a small adjustment for the abovementioned purpose.
  • a screen printing machine comprising an endless belt for supporting material to be printed upon and movable in a continuous path about and between a driving pulley and an idler pulley, said path including a substantially straight operative portion, a number of stationary bearing devices each rotatably supporting a cylindrical screen and mounted along said operative portion of the path, said screens being adapted to print upon material carried on the supporting belt, a supporting roll located opposite each of the screens and on the other side of the belt from the screens for bearing and guiding the belt, and means for shifting each said roll to diiferent fixed positions of its axis relative to the associated screen including means for adjustably varying said fixed positions to move the belt toward and away from the screen, whereby to adjust the friction of the belt and material with respect to said rolls and screens and to permit substitution of screens of different diameter in the stationary bearing devices.
  • a screen printing machine according to claim 1 wherein said means for adjustably varying the positions of the supporting rolls comprises adjustable stop means for limiting their movement toward the screens.
  • each supporting roll is mounted on an arm pivot- 4 able about a fixed pivot, an adjustable stop being provided for demarcating two positions of the arms, said positions being symmetrical relative to a plane parallel to the operative portion of the path of the endless belt and passing through the pivot of the arms.
  • each said arm is a bell-crank lever, one leg of each lever carrying the supporting roll, the other leg of each lever being connected to a common control rod for all of the levers, a fluid pressure cylinder device connected to said rod for moving the rod to bring all of the roll supporting levers int-o either of said two positions of the arm, said adjustable stop including a cam having a profile with at least two different active sections.
  • a screen printing machine comprising an endless belt for supporting material to be printed upon and travelling between a driving pulley and an idler pulley so as to form a straight operative path, a number of bearing devices each for a cylindrical screen lying along said path, means for bringing the screens into and out of contact with said endless belt and including a support roll disposed under the belt opposite each said cylinder for raising and lowering the belt, each supporting roll being mounted on a lever adapted to pivot about a fixed pivot, an adjustable stop being provided and formed by a cam with two boundary profiles which demarcate two positions of the lever for each supporting roll, said positions being symmetrical relative to a plane parallel to the operative path of the endless belt and passing through the pivot of the lever.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)
US395880A 1963-09-12 1964-09-11 Screen printing machine with interchangeable cylinders Expired - Lifetime US3291044A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL297814 1963-09-12

Publications (1)

Publication Number Publication Date
US3291044A true US3291044A (en) 1966-12-13

Family

ID=19755038

Family Applications (1)

Application Number Title Priority Date Filing Date
US395880A Expired - Lifetime US3291044A (en) 1963-09-12 1964-09-11 Screen printing machine with interchangeable cylinders

Country Status (4)

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US (1) US3291044A (de)
AT (1) AT248475B (de)
CH (1) CH424818A (de)
DE (2) DE1921522U (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3774533A (en) * 1971-12-15 1973-11-27 S Ichinose Rotary screen printing machine with internal squeegee
US3774534A (en) * 1971-12-15 1973-11-27 S Ichinose Rotary screen printing machine
US3896724A (en) * 1973-01-26 1975-07-29 Adamovske Strojirny Np Apparatus for the adjustment of a form cylinder
US3921519A (en) * 1971-11-15 1975-11-25 Peter Zimmer Rotary printing machine
US4030411A (en) * 1974-07-03 1977-06-21 Peter Zimmer Rotary-screen printing machine
US4074626A (en) * 1973-12-11 1978-02-21 Veb Polygraph Method and apparatus for continuously printing uncased folded books
US4094242A (en) * 1976-06-14 1978-06-13 Shiro Ichinose Lifting devices for flat screen printer
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
WO2000012224A1 (en) * 1998-08-29 2000-03-09 Mckillip John J Method and apparatus for producing business forms
US20030186014A1 (en) * 1999-10-13 2003-10-02 Malessa Partners L.L.C. Integrated forms and method of making such forms
US10906292B2 (en) * 2017-06-28 2021-02-02 Newtech Textile Technology Development (Shanghai) Co., Ltd Horizontal rotary screen transfer printing apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014152132A1 (en) * 2013-03-15 2014-09-25 Monsanto Technology Llc N-,c-disubstituted azoles for controlling nematode pests

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1764261A (en) * 1928-07-20 1930-06-17 Heyer Duplicator Company Inc Duplicating machine
US1791157A (en) * 1928-03-22 1931-02-03 Dick Co Ab Stencil duplicating machine
US2220242A (en) * 1939-08-04 1940-11-05 Hildebrandt Henry Duplicator
US2511511A (en) * 1947-04-11 1950-06-13 Lawrence Atkins S Rotary screen printing machine
US2697397A (en) * 1949-07-21 1954-12-21 Milo Harding Company Rotary printing drum for duplicating machines

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE836793C (de) * 1950-05-04 1952-04-17 Heinz Schroers Maschine zum Bedrucken von Textilgewebe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1791157A (en) * 1928-03-22 1931-02-03 Dick Co Ab Stencil duplicating machine
US1764261A (en) * 1928-07-20 1930-06-17 Heyer Duplicator Company Inc Duplicating machine
US2220242A (en) * 1939-08-04 1940-11-05 Hildebrandt Henry Duplicator
US2511511A (en) * 1947-04-11 1950-06-13 Lawrence Atkins S Rotary screen printing machine
US2697397A (en) * 1949-07-21 1954-12-21 Milo Harding Company Rotary printing drum for duplicating machines

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921519A (en) * 1971-11-15 1975-11-25 Peter Zimmer Rotary printing machine
US3774533A (en) * 1971-12-15 1973-11-27 S Ichinose Rotary screen printing machine with internal squeegee
US3774534A (en) * 1971-12-15 1973-11-27 S Ichinose Rotary screen printing machine
US3896724A (en) * 1973-01-26 1975-07-29 Adamovske Strojirny Np Apparatus for the adjustment of a form cylinder
US4074626A (en) * 1973-12-11 1978-02-21 Veb Polygraph Method and apparatus for continuously printing uncased folded books
US4030411A (en) * 1974-07-03 1977-06-21 Peter Zimmer Rotary-screen printing machine
US4094242A (en) * 1976-06-14 1978-06-13 Shiro Ichinose Lifting devices for flat screen printer
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
WO2000012224A1 (en) * 1998-08-29 2000-03-09 Mckillip John J Method and apparatus for producing business forms
US6182572B1 (en) * 1998-08-29 2001-02-06 Malessa Partners, L.L.C. Method and apparatus for producing multiple cut business forms
US6389971B1 (en) 1998-08-29 2002-05-21 Malessa Partners, Llc Method and apparatus for producing business forms
US6986306B2 (en) 1998-08-29 2006-01-17 Malessa Partners, L.L.C. Method and apparatus for producing multiple die-cut business forms
US20030186014A1 (en) * 1999-10-13 2003-10-02 Malessa Partners L.L.C. Integrated forms and method of making such forms
US6656555B1 (en) 1999-10-13 2003-12-02 Malessa Partners, L.L.C. Integrated forms and method of making such forms
US6989183B2 (en) 1999-10-13 2006-01-24 Malessa Partners, L.L.C. Integrated forms and method of making such forms
US10906292B2 (en) * 2017-06-28 2021-02-02 Newtech Textile Technology Development (Shanghai) Co., Ltd Horizontal rotary screen transfer printing apparatus

Also Published As

Publication number Publication date
DE1921522U (de) 1965-08-19
AT248475B (de) 1966-07-25
DE1460800B1 (de) 1971-01-21
CH424818A (de) 1966-11-30

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