US3543682A - Printing machines - Google Patents

Printing machines Download PDF

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Publication number
US3543682A
US3543682A US744068A US3543682DA US3543682A US 3543682 A US3543682 A US 3543682A US 744068 A US744068 A US 744068A US 3543682D A US3543682D A US 3543682DA US 3543682 A US3543682 A US 3543682A
Authority
US
United States
Prior art keywords
printing
piston
ink
chamber
pressure
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
US744068A
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English (en)
Inventor
Harold Frederick
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.)
Colorflo Ltd
Original Assignee
Colorflo Ltd
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 Colorflo Ltd filed Critical Colorflo Ltd
Application granted granted Critical
Publication of US3543682A publication Critical patent/US3543682A/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
    • B41F9/00—Rotary intaglio printing presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F1/00—Platen presses, i.e. presses in which printing is effected by at least one essentially-flat pressure-applying member co-operating with a flat type-bed
    • B41F1/26—Details
    • B41F1/40—Inking units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/08—Ducts, containers, supply or metering devices with ink ejecting means, e.g. pumps, nozzles

Definitions

  • the feed mechanism for a printing machine in which printing ink is fed into the recessed design of an intaglio printing plate includes a cylinder open at its upper end and communicating at its bottom with the recessed designs.
  • a piston is housed in the cylinder, the lower end of which piston forms a chamber at the bottom of the cylinder.
  • the piston rod extends above the cylinder and carries a support member at its upper end, the support member carrying a head.
  • a second cylinder rests upon the top of the first cylinder and receives the head which is slidable therein within limits.
  • a spring is interposed between the head and the bottom of the second cylinder.
  • the piston and piston rod have a bore forming a second chamber provided at itsupper end with an ink supply inlet.
  • a hollow relief piston is slidable in the lower end of the bore communicating with the second chamber and communicating through inlet openings with the first chamber.
  • a ball valve in the lower end of the relief piston is normally springbiased to close the outlet passage of the relief piston, and a second spring in the bore above the relief piston normally urges the relief piston into position in which the ball valve closes communication between the first chamber and the opening in the bottom of the first cylinder.
  • the piston rod is adapted to receive printing pressure whereby the chambers will be contracted by the application of pressure on the printing' plate during printing, and will expand when such pressure is released, the chamber expansion causing a further supply of ink to be sucked into the chambers ready for the next printing operation; and the ball valve being closed automatically by application of said pressure.
  • This invention relates to intaglio printing plates and to printing machines of the type in which printing ink is fed into the recessed design or engraving of an intaglio printing plate through the thickness of the plate.
  • a printing machine in accordance with the invention which has an ink feed mechanism comprising one or more pump chambers arranged to be contracted by the application of pressure on the printing plate during printing and to expand when the printing pressure is released, each chamber having an outlet which communicates, when printing is taking place, with one or more ink passages extending through the printing plate and an inlet which communicates with an ink supply the inlet being controlled by a valve device which is closed automatically by. the application of printing pressure to the printing plate and outlet being also controlled by a valve device which is normally closed but which is opened automatically by the application of further printing pressure for the printing plate after the inlet valve has been closed.
  • the inlet valve device is preferably arranged to be actuated by the displacement of the printing plate relatively to a support or the like forming part of the printing machine and from which the printing plate receives pressure preferably through the intermediary of a spring or springs.
  • the outlet valve may be actuated by the hydraulic pressure of the printing ink generated by increased pressure in the chamber after the inlet valve has been closed.
  • the initial application of printing pressure of the inlet valve causes ink to be driven from the pump chamber back to the supply but as the printing plate begins to receive the full printing pressure the inlet valve is closed and the outlet valve is open so that ink is forced through the printing plate only when the printing plate is being pressed onto the surface to be printed with a reasonable pres sure.
  • the printing surface is then printed with ink under pres sure.
  • excess ink is returned to the supply by the opening of a pressure relief valve.
  • the outlet valves closes as the plate is being lifted from the surface.
  • the printing chamber then expands so as to cause a further supply of printing ink to be sucked into the chamber ready for the next printing operation.
  • Each pump chamber may have a piston attached to a press plate and working in the chamber formed in a plate designed to carry the intaglio printing surface.
  • Each chamber has one or more inlet openings adapted for connection to an ink supply and one or more outlet openings which communicate with one or more ink passages extending through the thickness of the printing plate and into the recessed design or engraving in the printing surface thereof.
  • the printing plate has a limited movement towards and away from the support under the control of one or more springs which constantly tend to move the plate away from the support but allow the support to approach the plate and thereby compress the pump chamber when the pressure of the springs is overcome by the printing pressure applied.
  • Each inlet opening for the supply of ink communicates with its pump chamber through a port formed in an auxiliary relief" piston which works in a cylindrical bore in the main l' piston.
  • One end of this auxiliary piston carries a valve or valves which control the outlet opening or openings leading from the pump chamber to the recesses of the printing plate.
  • the auxiliary piston is controlled by a spring which constantly tends to press the auxiliary piston inwards i.e. in a direction to close the outlet opening or openings.
  • the mechanism comprises a cylinder 2 the interior chamber 4 of which communicates with a recessed design or engraving on the printing surface of an intaglio printing plate (not shown) through a passage 6.
  • a piston 8 works in the chamber 4 and is provided with a sliding seal member 10 to provide a seal between the piston and the chamber.
  • the upper portion of the piston rod 12 is secured to a support member 14 having a head 15 which is arranged for limited sliding movement in a cylinder 16 which rests on the top of the walls of the cylinder 2.
  • the member 14 moves down within the cylinder 16 compressing a spring 20 which is located between the head 15 of the member 14 and bottom wall 22 of the cylinder so as to apply pressure to the cylinder 2 through the spring 20.
  • the piston 8 and its rod 12 are formed with an internal passage 24 communicating at the upper end with an opening 25 through the member 14 for connection to a supply of printing ink.
  • the lower portion of the passage 24 is of larger diameter to provide a cylinder 26 carrying a relief or auxiliary piston 28 which is hollow and which communicates with the chamber 26 through an opening 30 and with the chamber 4 through chamber inlet openings 32.
  • the piston 28 which is a sliding fit in the cylinder 26 carries a ball valve 34 at its lower end which is normally biased by means of a spring 36 within the piston to a position in which it closes the outlet passage 38 from the piston.
  • the piston itself is biased by means of a spring 40, located within the cylinder 26 to a position in which the ball valve 34 closes communication between the chamber 4 and its outlet passage 6.
  • printing pressure is applied by standard means (not shown) to the piston rod 12 and support member 14 causing through the spring 20 the printing plate 2 to be pressed against the surface to be printed. Further, pressure is applied to the printing ink in the chamber 4 by the piston 8 within the chamber.
  • the outlet 6 remains closed by the outlet valve 34 and the inlet valve 32 is open so that ink within the chamber 4 can flow back through the relief piston 28 and up through the passage 24 in the main piston tothe ink supply.
  • the head of the piston 8 acts as a valve device to close the ports 32 so that communication between the chamber 4 and the ink supply is cut off.
  • the printing plate is pressed firmly down on the printing surface and when the pressure in the chamber 4 has built up sufficiently the pressure acting on the tapered nose 42 of the relief piston 28 causes this piston to move up into the cylinder 26 against the pressure of the spring 40 so as to open the passage 6 through the printing plate to the chamber 4 allowing printing ink to reach the intaglio surface of the plate.
  • the spring 20 moves the main piston 8 upwardly within the chamber 4 to the position shown in the drawings in which it abuts against the stop 44 and as the chamber 4 is expanded and as the ports 32 are now open ink is drawn through the supply opening 25 the passage 24 the cylinder 26 and the opening 30 into the chamber 4 ready for the next printing operation.
  • the spring 20 which is used to apply pressure to the printing plate could of course be replaced by subsidiary pistons and cylinders coupled to a hydraulic accumulator.
  • the mechanism can be used for example to feed colored paint or the like rather than colored ink into different parts of an intaglio surface each chamber being supplied with paint of one particular color so that colored patterns can be printed.
  • two or more pump units such as that described can be connected to a common outlet into an intaglio relief so that by using different colors of ink or paint one for each pump unit, marbled effects can be obtained.
  • Equally adhesives could be used instead of paint or colored printing inks, as could thermoplastic material.
  • outlets from the chambers of each unit can be made of different cross sections so that the quantity of each colored ink or paint can be regulated.
  • a feed mechanism for the type of printing machine in which printing ink is fed into the recessed design of an intaglio printing plate through the thickness of said plate comprising a cylinder open at its upper end and having its bottom adapted to communicate with said recessed design; a piston in said cylinder forming with the bottom of the cylinder an ink chamber; a piston rod for the piston extending above the cylinder; a head carried by the upper end of the piston rod; a second cylinder disposed upon the first cylinder and slidably receiving said head; a spring interposed between said head and the bottom of said second cylinder; said piston and piston rod having a bore therein forming a second ink chamber adapted to communicate with an ink supply; a hollow relief piston slidable in the lower end of said bore communicating at its top with the second chamber and also communicating through lateral openings with the first chamber when the relief piston is projected to expose said openings below the first piston; a ball valve in the lower end of the relief piston and cooperating with a valve seat and normally spring-bia

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Reciprocating Pumps (AREA)
US744068A 1967-07-21 1968-07-11 Printing machines Expired - Lifetime US3543682A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB33735/67A GB1241793A (en) 1967-07-21 1967-07-21 Improvements in or relating to printing apparatus

Publications (1)

Publication Number Publication Date
US3543682A true US3543682A (en) 1970-12-01

Family

ID=10356789

Family Applications (1)

Application Number Title Priority Date Filing Date
US744068A Expired - Lifetime US3543682A (en) 1967-07-21 1968-07-11 Printing machines

Country Status (13)

Country Link
US (1) US3543682A (enrdf_load_stackoverflow)
AT (1) AT309476B (enrdf_load_stackoverflow)
BE (1) BE718361A (enrdf_load_stackoverflow)
CH (1) CH510521A (enrdf_load_stackoverflow)
DE (1) DE1761896C3 (enrdf_load_stackoverflow)
DK (1) DK136586B (enrdf_load_stackoverflow)
ES (1) ES356354A1 (enrdf_load_stackoverflow)
FI (1) FI52956C (enrdf_load_stackoverflow)
FR (1) FR1576695A (enrdf_load_stackoverflow)
GB (1) GB1241793A (enrdf_load_stackoverflow)
MY (1) MY7400176A (enrdf_load_stackoverflow)
NL (1) NL163468C (enrdf_load_stackoverflow)
SE (1) SE359056B (enrdf_load_stackoverflow)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3827339A (en) * 1969-03-21 1974-08-06 Nordson Corp Double acting hydraulic pump
US3845793A (en) * 1970-05-28 1974-11-05 P Good Machine for filling luncheon dough into mold cans
US3896723A (en) * 1971-10-14 1975-07-29 Colorflo Ltd Apparatus for pumping fluid through a die plate to a recessed design
US3949669A (en) * 1973-03-09 1976-04-13 Encoline (Process) Limited Process and method in printing
US3976004A (en) * 1972-12-22 1976-08-24 England Iii John W Apparatus for metal rule die embossing and staining
US3979028A (en) * 1974-10-31 1976-09-07 Colorflo Limited Fluid injector
US4033258A (en) * 1972-05-30 1977-07-05 Colorflo Limited Printing apparatus
DE2721990A1 (de) * 1976-05-17 1977-12-01 Ncr Co Druckvorrichtung
US4061085A (en) * 1976-07-06 1977-12-06 Colorflo Limited Fluid injector
US4239131A (en) * 1977-11-28 1980-12-16 Ken Emert Self-priming liquid dispenser
US4691735A (en) * 1985-05-10 1987-09-08 Horton James B Plunger valve apparatus for oil well pump
US5080013A (en) * 1989-03-25 1992-01-14 Man Roland Druckmaschinen Ag Chambered doctor blade system for printing machine inkers
US6457957B1 (en) * 1998-10-17 2002-10-01 Bosch Gmbh Robert Radial piston pump for generating high fuel pressure
US20090261279A1 (en) * 2008-04-22 2009-10-22 Honeywell International Inc., Valve actuator and throttle valve assembly employing the same
US20120244013A1 (en) * 2011-03-25 2012-09-27 Aisin Aw Co., Ltd. Electromagnetic pump
CN111016417A (zh) * 2019-12-13 2020-04-17 付东强 一种可以防止染液溢边的衣物印花设备
US10995865B2 (en) 2015-11-11 2021-05-04 Graco Minnesota Inc. Piston ball guide for a ball pump
US11572876B2 (en) 2017-08-30 2023-02-07 Graco Minnesota Inc. Pump piston

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1396281A (en) * 1971-04-22 1975-06-04 Colorflo Ltd Multicolour printing
US8927092B2 (en) 2011-03-04 2015-01-06 The Procter & Gamble Company Web substrates having wide color gamut indicia printed thereon
US8839716B2 (en) 2011-03-04 2014-09-23 The Procter & Gamble Company Apparatus for applying indicia having a large color gamut on web substrates
US8833250B2 (en) 2011-03-04 2014-09-16 The Procter & Gamble Company Apparatus for applying indicia having a large color gamut on web substrates
US8943958B2 (en) 2011-03-04 2015-02-03 The Procter & Gamble Company Apparatus for applying indicia having a large color gamut on web substrates
US8943959B2 (en) 2011-03-04 2015-02-03 The Procter & Gamble Company Unique process for printing multiple color indicia upon web substrates
US8916261B2 (en) 2011-03-04 2014-12-23 The Procter & Gamble Company Web substrates having wide color gamut indicia printed thereon
US8920911B2 (en) 2011-03-04 2014-12-30 The Procter & Gamble Company Web substrates having wide color gamut indicia printed thereon
US8927093B2 (en) 2011-03-04 2015-01-06 The Procter & Gamble Company Web substrates having wide color gamut indicia printed thereon
US8943960B2 (en) 2011-03-04 2015-02-03 The Procter & Gamble Company Unique process for printing multiple color indicia upon web substrates
US8985013B2 (en) 2011-03-04 2015-03-24 The Procter & Gamble Company Apparatus for applying indicia having a large color gamut on web substrates
US8665493B2 (en) 2011-03-04 2014-03-04 The Procter & Gamble Company Web substrates having wide color gamut indicia printed thereon
US8616126B2 (en) 2011-03-04 2013-12-31 The Procter & Gamble Company Apparatus for applying indicia having a large color gamut on web substrates
US8839717B2 (en) 2011-03-04 2014-09-23 The Procter & Gamble Company Unique process for printing multiple color indicia upon web substrates
US8758560B2 (en) 2011-03-04 2014-06-24 The Procter & Gamble Company Web substrates having wide color gamut indicia printed thereon
US8962124B2 (en) 2011-03-04 2015-02-24 The Procter & Gamble Company Web substrates having wide color gamut indicia printed thereon
US8943957B2 (en) 2011-03-04 2015-02-03 The Procter & Gamble Company Apparatus for applying indicia having a large color gamut on web substrates
US8916260B2 (en) 2011-03-04 2014-12-23 The Procter & Gamble Company Web substrates having wide color gamut indicia printed thereon
US9085130B2 (en) 2013-09-27 2015-07-21 The Procter & Gamble Company Optimized internally-fed high-speed rotary printing device
US10144016B2 (en) 2015-10-30 2018-12-04 The Procter & Gamble Company Apparatus for non-contact printing of actives onto web materials and articles
US10195091B2 (en) 2016-03-11 2019-02-05 The Procter & Gamble Company Compositioned, textured nonwoven webs
WO2020028734A1 (en) 2018-08-03 2020-02-06 The Procter & Gamble Company Webs with compositions applied thereto
CN112512475A (zh) 2018-08-03 2021-03-16 宝洁公司 其上具有组合物的纤维网

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3827339A (en) * 1969-03-21 1974-08-06 Nordson Corp Double acting hydraulic pump
US3845793A (en) * 1970-05-28 1974-11-05 P Good Machine for filling luncheon dough into mold cans
US3896723A (en) * 1971-10-14 1975-07-29 Colorflo Ltd Apparatus for pumping fluid through a die plate to a recessed design
US4033258A (en) * 1972-05-30 1977-07-05 Colorflo Limited Printing apparatus
US3976004A (en) * 1972-12-22 1976-08-24 England Iii John W Apparatus for metal rule die embossing and staining
US3949669A (en) * 1973-03-09 1976-04-13 Encoline (Process) Limited Process and method in printing
US3979028A (en) * 1974-10-31 1976-09-07 Colorflo Limited Fluid injector
DE2721990A1 (de) * 1976-05-17 1977-12-01 Ncr Co Druckvorrichtung
US4061085A (en) * 1976-07-06 1977-12-06 Colorflo Limited Fluid injector
US4239131A (en) * 1977-11-28 1980-12-16 Ken Emert Self-priming liquid dispenser
US4691735A (en) * 1985-05-10 1987-09-08 Horton James B Plunger valve apparatus for oil well pump
US5080013A (en) * 1989-03-25 1992-01-14 Man Roland Druckmaschinen Ag Chambered doctor blade system for printing machine inkers
US6457957B1 (en) * 1998-10-17 2002-10-01 Bosch Gmbh Robert Radial piston pump for generating high fuel pressure
US20090261279A1 (en) * 2008-04-22 2009-10-22 Honeywell International Inc., Valve actuator and throttle valve assembly employing the same
US8360097B2 (en) * 2008-04-22 2013-01-29 Honeywell International Inc. Valve actuator and throttle valve assembly employing the same
US20120244013A1 (en) * 2011-03-25 2012-09-27 Aisin Aw Co., Ltd. Electromagnetic pump
US9140245B2 (en) * 2011-03-25 2015-09-22 Aisin Aw Co., Ltd. Electromagnetic pump
US10995865B2 (en) 2015-11-11 2021-05-04 Graco Minnesota Inc. Piston ball guide for a ball pump
US11015726B2 (en) 2015-11-11 2021-05-25 Graco Minnesota Inc. Ball cage with directed flow paths for a ball pump
US11572876B2 (en) 2017-08-30 2023-02-07 Graco Minnesota Inc. Pump piston
CN111016417A (zh) * 2019-12-13 2020-04-17 付东强 一种可以防止染液溢边的衣物印花设备
CN111016417B (zh) * 2019-12-13 2021-06-18 绍兴市览海环保科技有限公司 一种可以防止染液溢边的衣物印花设备

Also Published As

Publication number Publication date
NL163468C (nl) 1980-09-15
FI52956C (enrdf_load_stackoverflow) 1978-01-10
BE718361A (enrdf_load_stackoverflow) 1968-12-31
AT309476B (de) 1973-08-27
DK136586B (da) 1977-10-31
GB1241793A (en) 1971-08-04
DE1761896A1 (de) 1971-09-09
DK136586C (enrdf_load_stackoverflow) 1978-04-10
MY7400176A (en) 1974-12-31
FR1576695A (enrdf_load_stackoverflow) 1969-08-01
ES356354A1 (es) 1970-02-01
DE1761896B2 (de) 1977-07-21
FI52956B (enrdf_load_stackoverflow) 1977-09-30
NL6810254A (enrdf_load_stackoverflow) 1969-01-23
CH510521A (fr) 1971-07-31
DE1761896C3 (de) 1978-03-02
NL163468B (nl) 1980-04-15
SE359056B (enrdf_load_stackoverflow) 1973-08-20

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