CA2904513C - Disposable cup insert for pad printing and decorating - Google Patents

Disposable cup insert for pad printing and decorating Download PDF

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Publication number
CA2904513C
CA2904513C CA2904513A CA2904513A CA2904513C CA 2904513 C CA2904513 C CA 2904513C CA 2904513 A CA2904513 A CA 2904513A CA 2904513 A CA2904513 A CA 2904513A CA 2904513 C CA2904513 C CA 2904513C
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Canada
Prior art keywords
disposable cup
cup insert
sealing material
scraping element
ink
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Active
Application number
CA2904513A
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French (fr)
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CA2904513A1 (en
Inventor
Tracy Kucaba
Dana Pulvino
Robert Hitchcock
Sam Peterson
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Illinois Tool Works Inc
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Illinois Tool Works Inc
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Filing date
Publication date
Priority claimed from US13/793,689 external-priority patent/US20130327414A1/en
Application filed by Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Publication of CA2904513A1 publication Critical patent/CA2904513A1/en
Application granted granted Critical
Publication of CA2904513C publication Critical patent/CA2904513C/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F17/00Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/001Pad printing apparatus or machines

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  • Pens And Brushes (AREA)
  • Coating Apparatus (AREA)
  • Ink Jet (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

A liquid supply assembly (30) for use with a pad printing system, whereby a liquid is deposited from the liquid supply assembly (30) in a receiving region on a plate (20) and any excess of the liquid in the receiving region is scraped from the plate (20) by the liquid supply assembly (30). The liquid supply assembly (30) employs a reusable cup (40), a disposable cup insert (50) and a scraping element (60). As assembled, the reusable cup (40) includes a reusable liquid reservoir (44), the disposable cup insert (50) includes a temporary liquid reservoir (54) holding the liquid within the reusable liquid reservoir (44), and the scraping element (60) includes a conduit (61) facilitating allow of the liquid held by the temporary liquid reservoir (54) through the conduit (61) to the plate (20).

Description

DISPOSABLE CUP INSERT FOR PAD PRINTING AND
DECORATING
INTENTIONALLY LEFT BLANK
BACKGROUND
[0002] The present invention relates to liquid supply assemblies for printers. More particularly, the present invention relates to a disposable cup insert as a temporary reservoir designed to hold a liquid (e.g., a liquid mixture of ink and thinner) used in a pad printing and decorating process.
[0003] Automated printing systems are in widespread use in a host of industries. The number of types of printing systems is almost as great as the number of industries in which these systems are used.
[0004] One type of printing system that operates in a fully automatic or near fully automatic mode is a pad printing system. These systems are used to apply high quality print (e.g., indicia) on flat as well as non-flat surfaces. For example, pad printing systems can be used to print logos and the like on cellular telephone covers, game balls (e.g., golf balls) and the like. It will be appreciated that such printing must be carried out, not only on a spherical surface, but on a surface that is formed with dimples as well.
[0005] Conventional pad printing systems use a deformable pad which receives ink, transferred as an image, from a flat cliché plate. The plate has an engraving or etching of the indicia formed therein. ink is transferred from a liquid supply assembly to the cliche plate, and fills into the etched areas. The defonnable pad is then pressed onto the plate and ink within the liquid is picked up by the pad. The image is then transfer ed to the curved surface which is to be printed.
[00061 To re-ink the pad, in a commonly used arrangement, an inverted cup containing a quantity of printing ink is used to apply the ink to the cliché plate. To apply a new coating of ink to the cliché plate, the cup and cliche plate are moved relative to each other following each ink transfer operation. A doctor blade is fitted to the cup to traverse along the cliche plate and "wipe"
excess ink from the cliché plate. This assures that ink is left behind in the etching but does not build up on the plate, inside or outside of the etched areas.
100071 Currently, the cup is typically cleaned after each use of the cup in applying a new coating of ink to the cliche plate. Such cleaning can be costly in terms of time, labor and materials. Accordingly, there is a need for a liquid supply assembly for a printing system that minimizes, if not eliminates, a cleaning requirement of the reusable cup after each of use of the cup in applying a new coating of ink to the cliché plate.
BRIEF DESCRIPTION
100081 The present invention provides a new and unique liquid supply assembly employing a reusable cup including a reusable liquid reservoir, a disposable cup insert including a temporary liquid reservoir for holding a liquid within the reusable liquid reservoir, and a scraping element including a conduit in liquid communication with the temporary liquid reservoir of the disposable cup insert. This liquid assembly is designed to be used by a printing system of the type in which the reusable cup is secured by the printer system whereby the liquid held by the temporary liquid reservoir of the disposable cup insert can be deposited by the conduit in a receiving region on a plate and any excess Of the liquid in the receiving region can be scraped from the plate by the Scraping element.
100091 The disposable cup insert includes a hollow reservoir body having an open outlet and a closed base defining the temporary liquid reservoir.

. , 100101 In a first form of the disposable cup insert, the closed base has a flexible material composition to facilitate an expansion of the temporary liquid reservoir in response to an increase in a gas pressure exerted by the liquid on the temporary liquid reservoir.
[0011] In a second form of the disposable cup insert, the open outlet includes a seal enclosing the conduit of the scraping element.
[0012] In a third form of the disposable cup insert, the open outlet includes a hinge facilitating movement of the scraping element relative to the disposable cup insert.
[0012a] In a broad aspect, a liquid supply assembly for a printing system is provided. The liquid supply assembly includes a disposable cup insert that defines a liquid reservoir for holding ink. The disposable cup insert has a closed base and an opposite open outlet that is positioned at a first end of the disposable cup insert. The first end of the disposable cup insert includes a channeled seat extending around the open outlet. There is a scraping element shaped to be positioned inside the channeled seat of the first end of the disposable cup insert. The scraping element defines a conduit through which the ink flows from the liquid reservoir of the disposable cup insert to a cliché plate for applying the ink to one or more objects via the cliché plate. There is a sealing material bonded to and positioned between the disposable cup insert and the scraping element. The sealing material is a flexible body that is bonded to the disposable cup insert and the scraping element when the scraping element is at least partially positioned in the sealing material when the sealing material is in a fluid state and the sealing material cures around the scraping element. The channeled seat of the disposable cup insert is defined by three sides of the disposable cup insert at the first end of the disposable cup insert, and the sealing material is disposed between the scraping element and each of the three sides of the disposable cup insert.
[001214 In another aspect, the invention pertains to a method that includes loading a fluid sealing material into a channeled seat in a first end of a disposable cup insert of a liquid supply assembly for a printing system. The disposable cup insert defines a liquid reservoir for holding ink used for printing with the printing system. The disposable cup insert has a closed base and an opposite open outlet that is positioned at the first end of the disposable cup insert. A scraping element is placed in the channeled seat of the disposable cup insert and at least partially into the fluid sealing material. The scraping element defines a conduit through which the ink flows from the liquid reservoir of the disposable cup insert to a cliché plate for applying the ink to one or more objects via the cliché plate. The fluid sealing material is bonded to the disposable cup insert and the scraping element within the channeled seat of the disposable cup insert. The sealing material forms a seal between the scraping element and the disposable cup insert in the channeled seat of the disposable cup insert that prevents passage of the ink between the scraping element and the disposable cup insert in the channeled seat. The bonding of the fluid sealing material to the disposable cup insert and the scraping element includes curing the fluid sealing material. The channeled seat of the disposable cup insert is defined by three sides of the disposable cup insert at the first end of the disposable cup insert, and the scraping element is placed into the channeled seat of the disposable cup insert such that the sealing material is disposed between the scraping element and each of the three sides of the disposable cup insert.
[0013] These and other features and advantages of the present invention will be readily apparent from the following detailed description.
BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The benefits and advantages of the present invention will become more readily apparent to those of ordinary skill in the relevant art after reviewing the following detailed description and accompanying drawings, wherein:
[0015] FIG. 1 illustrates a side view of one embodiment of a liquid supply assembly in accordance with the present invention as employed in a pad printing system further employing a printing pad and a cliché plate as known in the art;
[0016] FIG. 2 illustrates an exploded side view of the liquid supply assembly illustrated in FIG. 1 in accordance with the present invention;
[0017] FIG. 3 illustrates a cross-sectional view of the liquid supply assembly illustrated in FIG. 1 in accordance with the present invention;
[0018] FIG. 4 illustrates a partial cross-sectional view of a first embodiment of a sealing configuration of the liquid supply assembly illustrated in FIGS. 2 and 3 in accordance with the present invention;
3a 100191 FIG, 5 illustrates a partial cross-sectional view of a 'Second embodiment of a sealing configuration of the liquid supply assembly illustrated in FIGS., 2 and 3 in accordance with the present invention;
100201 FIG. 6 illustrates a partial cross-sectional view of a third embodiment Of a Sealing configuration of the liquid supply assembly illustrated in FIGS. 2 and 3 in accordance with the present mvention;
10021] FIG. 7 illustrates a partial cross-sectional view of a fourth embodiment of a sealing configuration of the liquid supply assembly illustrated in FIGS. 2 and 3 in accordance with the present invention;
[0022] FIG. 8 illustrates a partial cross-sectional view of a fifth embodiment of a sealing configuration of the liquid supply assembly illustrated in FIGS. 2 and 3 in accordance with the present invention;
[0023] Fla 9 illustrates a patliAl cross-sectional view Of 'a Sixth embodiment of a sealing configuration of the liquid supply assembly illustrated in FIGS, 2 and 3 in accordance with the present i nv en don;
[00241 FIG. 10 illustrates an exemplary use of a pair of disposable cup inserts in accordance with the present invention [00251 FIG, 11 illustrates a partial cross-sectional view of another embodiment of a sealing configuration of the liquid supply assembly illustrated in FIGS. .2 and 3 in accordance with the present invention;
10026.1 FIG. 12 illustrates a cross-sectional View of another embodiment of a seating configuration of the liquid assembly shown in FIGS. 2 and 3;
100271 FIG. 13 illustrates a cross-sectional view of the embodiment of the seating configuration shown in FIG. .12; and 100281 FIG. 14 illustrates a flowchart of one embodiment. of a method for providing a seal between a disposable cup insert and a scraping element.

DETAILED DESCRIPTION
[0029] While the present invention is susceptible of embodiment in various forms, there Is shown in the drawings and will hereinafter be described, as presently preferred embodiments with the understanding that the presently preferred embodiments are to be considered an exemplification of the present invention and are not intended to limit -the present invention to the specific embodiments illustrated, 100301 It should be understood that the title of this section of this specification, namely, "Detailed Description", relates to a requirement of' the United States Patent Office, and does not imply, nor should be inferred to limit the subject matter disclosed herein.
[0031] Referring now to the drawings, FIG. I illustrates a portion of an exemplary pad printer 10 including a frame 11 having a reciprocating printing pad 12 mounted thereto. Printing pad 1.2 is a dethrmable pad onto which ink is transferred, and from which the ink is further transferred to the object to be imprinted. A typical printing pad 12. is formed from a resilient, low permeability material such as silicone rubber or the like.
[00321 Also shown are a cliché plate 20, which has the artwork in the form of an engraving or etching, and a liquid supply assembly 30, which is :secured by a cup gripping mechanism ("CGM") 13 of pad printer 10 whereby cliche plate 20 and liquid supply assembly 30 can be reciprocated relative to one another to supply a liquid held by the liquid supply assembly 30 to cliche plate 20 (e.g., ink from an ink/thinner liquid mixture).
To this end, liquid supply assembly 30 includes a reusable cup 40, a. disposable cup insert 50 inserted within reusable cup 40, and a scraping element in the form of a doctor ring 60, In operation, cup gripping mechanism 13 secures reusable cup 40 as would be appreciated by-those having ordinary skill in the art Whereby, as the liquid supply assembly 30 and/or cliche plate 2.0 are being translated in a horizontal direction, liquid held by disposable cup insert 50 can be deposited in a receiving region on cliché plate 20 and any excess of the liquid can be scraped from cliche plate 20 by doctor ring 60 to thereby leave liquid in the receiving region only of cliche plate 20.

100331 FIG. 2 illustrates an unassembled view of liquid supply assent* 30 arid FIG. 3 illustrates an .assembled view, of liquid supply assembly 30 -as placed on cliché plate. 20. As shown in FIG. 2, reusable cup 40 includes a. hollow reservoir body 41 having an open flanged outlet 42 and a closed base 43 defining a reusable liquid reservoir 44. As shown in FIG. 3, reusable liquid reservoir 44 has a size and shape for receiving disposable cup insert 50 therein.
[0034] As shown in Fla 2,..dispoSable cup insert 50 includes a hollow reservoir body '51.
having an open flanged outlet 5.2 and.a closed base 53 defining a temporary liquid reservoir 54 .for holding a liquid within reusable liquid reservoir 54 (e.g., an ink/thinner mixture), and doctor ring 60 includes a 'hollow conduit body 61 having an open inlet 62 and an open outlet 63 defining a conduit 64. As shown in FIG. 3, reservoir 54 and conduit 64 are sized and shaped to facilitate a flow of liquid held by liquid reservoir 54 through conduit 64 when disposable cup insert 50 and doctor ring 60 are physically aligned.
100351 Referring to FIG. 3, reusable cup 40, disposable cup insert 50 and doctor ring 60 can have any material composition suitable for holding and supplying liquid (e,g,, ink) to cliche plate 20 as would be appreciated by those having ordinary skill in the art. In one embodiment, closed base 53 (FI.G. 2) of disposable cup insert 50 has a flexible material composition (e.g., derbrmable plastic that is recyclable) that theilitates an expansion of liquid reservoir 54 as indicated by the dashed outline of disposable cup insert 50 in response to an increase in a gas pressure exerted by the liquid on liquid reservoir 54, such as, for example, an increase in the gas pressure by an ink/thinner liquid mixture on liquid reservoir 54 in view of an evaporation of the thinner from the ink/thinner 'liquid mixture 'held by 'liquid reservoir 54.
In. this embodiment., other portions of 'hollow reservoir body 51, such as open flanged outlet 52, can also have a flexible material composition.
100361 Referring to FIG. 2, a seal between the open flanged outlet 42 of reusable cup 40, open flanged outlet 52 of disposable cup insert 50, and/or doctor ring 60 may be provided to thereby prevent side leakage of the liquid held by temporary reservoir 54. The present invention does not impose any limitations or any restrictions as to the structural configttrations of open flanged outlet 42 of reusable cup 40 and open flanged outlet 52 of disposable cup insert 50 .for purposing- of facilitating such a seal. Thus, the following exemplary embodiments of a sealing
6 configuration does not limit nor restrict the scope of structural configurations of open flanged outlet 42 of reusable cup 40 and open .flanged outlet 52 of disposable cup insert 50 for purposing of facilitating a seal between the open flanged outlet 42 of reusable cup 40, open flanged outlet 52 of disposable cup insert 50, and doctor ring 60.
[0037] In a first sealing configuration embodiment, as shown in FIG. 4, the flange of open outlet 42 is in the form of a seat 45 and the flange of open outlet 54 is in the form of a seat 55. As assembled, seat 45 supports seat 55, which in turn supports conduit body 61 to thereby physically align liquid reservoir 54 with conduit 64. In this embodiment, a seal between seat 45 and conduit body 61 is formed by a press-fit technique.
100381 In second sealing configuration embodiment, as shown in FIG. 5, the flange of open outlet 42 is again in the form of seat 45 and the flange of open outlet 54 is again in the form of seat 55. As assembled, seat 45 supports seat 55, which in turn supports an 0-ring 70 adjacent conduit 64 to thereby physically align liquid reservoir 54 with conduit 64. In this embodiment, 0-ring 70 serves as the sole or primary seal.
[0039] In a third sealing configuration embodiment, as shown in FIG. 6, the flange of open outlet 42 is again in the form of seat 45 and the flange of open outlet 54 is again in the form of seat 55. As assembled, seat 45 supports seat 55, which in turn supports an 0-ring 71 adjacent an outer surface of conduit body 61 to thereby physically align liquid reservoir 54 with conduit 64. In this embodiment, 0-ring 71 serves as the sole or primary seal.
100401 In a tburth sealing configuration emtlodiment, as shown in FIG. 7, the flange of open outlet 42 is again in the form of seat 45 and the flange of open outlet 54 is again in the form of seat 55. As assembled, seat 45 supports seat 55, which in turn supports an 0-ring 73 adjacent conduit 64 and the outer surface of conduit body 61 to thereby physically align liquid reservoir 54 with conduit 64. In this embodiment, 0-ring 73 serves as the sole or primary seal [0041] In a fifth sealing configuration embodiment, as shown in FIG. 8, the flange of open outlet 42 is in the form of a channeled seat 46 and the flange of open outlet 54 is in the form of a seal 56. As assembled, channeled seat 46 supports seal 56, which in turn encloses
7 conduit 64 of conduit body 01 to thereby physically align liquid. reservoir 54 with conduit 64. In this embodiment, seal 56 serves as the sole or primary !eat [0042] In a sixth sealing configuration embodiment, .as shown in FIG. 9.
the flange of open outlet 42 isagain in the form of channeled seat 46 and the flange of open outlet 54 is in the form of seal 56 and a hinge 57. .As assembled, channeled seat 46 supports seal 56, which in turn encloses conduit 64 of conduit body 61 to thereby physically align liquid reservoir 54 with conduit 64. Hinge 57 has a flexible material composition to facilitate an expansion of liquid reservoir 54 and more importantly., to facilitate a movement of conduit body:
61 relative: to disposable cup insert 50 due to imperfections in the surface contact between cliché plate 20 and conduit body 61 and to the pressurized environment within liquid reservoir 54.
In this embodiment, seal 56 again serves as the sole or primary seal.
[0043] In a seventh sealing configuration embodiment, as shown in FIG, 11, the flange of open outlet 42 is again in the form of channeled seat 46 and the flange of open .ain let 54 is in the form of seal 56. In contrast to the fifth sealing configuration, the seventh sealing configuration includes an inner bottom portion. 70 of seal 56 substantially collinear with an Miter lower portion 71 of Channeled seat 46. Additional stability is provided whereby seal 56 extends adjacent outer lower portion 71 of channeled. seat 46. As assembled, channeled seat 46 supports Seal 56, which in turn encloses conduit 64 of conduit body 51 to thereby ph-ysically align liquid. reservoir 54 with conduit 64. in this embodiment, seal 56 serves as the sole or primary seal. An orientation of the elements in such a fashion allows ink to flow substantially unimpeded to the edge of a scraping element, and allows better ink coverage of the image. In one embodiment, the :reservoir body 5.1 includes an inner bottom portion 70 and an outer lower portion 7.1 separated by a recessed portion, such that the recessed portion is configured to mate with a conduit body, and the inner bottom portion 70 and an outer lower portion 71 are substantially collinear in another embodiment, the reservoir body 51 includes an inner bottom portion 70 and an outer lower portion 71 separated by a recessed portion, such that the recessed portion is configured to mate with a conduit body, and the inner bottom portion 70 and an outer lower portion 71 are not substantially collinear. In another embodiment, the channeled seat includes a recessed portion separating an inner portion and an outer portion such that a lower surface of the inner portion is
8 not Collinear with a lower surface of the outer portion and each of the inner portion, recessed portion, and outer porti Oil is configured_ to mate with a reservoir body holding ink.
[0044] In an eighth sealinp, configuration embodiment, as shown in FIGS.
12 and 13, the flange Of the open outlet 42 is again in the form of the channeled seat 46 of the disposable cup insert 50. A sealing material 1200 is loaded into the channeled seat 46. The disposable cup insert 50 extends between a closed base or end 1202 and an opposite first end 1204 haying the open outlet 42 through which ink held in the reservoir of the disposable cup insert 50 is dispensed. This sealing material 1200 can be loaded into the channeled seat 46 prior to placing the scraping element or doctor blade 60 into the channeled seat 46.
Alternatively, the scraping element 60 can be positioned into the channeled seat 46 and the sealing material 1200 can be loaded into the channeled seat 46 afterward (e.g., at least partially around the scraping element 60).
[00451 The sealing material 1200 can be a fluid material or compound when the sealing material 1200 is placed into the channeled seat 46, in one aspect, the sealing material 1200 may be a liquid or gel material when loaded into the channeled seat 46. For example, the sealing material 1200 may be a fluid (e.g., uncured) silicone material, a caulk material, or another material that is capable of flowing at room temperature (e.g., 20 degrees Celsius). The scraping element 60 may then be at least partially placed into the fluid sealing material 1200. The fluid sealing material 1200 may then cure into a flexible material that forms a seal between the scraping element 60 and the disposable cup insert 50 in the channeled seat 46.
Alternatively, the fluid sealing material 1200 may cure into a rigid or semi-rigid material that forms a seal between the scraping element 60 and the disposable cup insert 50 in the channeled seat 46, as shown in FIG. 13.
100461 The disposable cup insert 50 may then be positioned in the reusable cup 40 with the sealing material 1200 and the scraping element 60 in the channeled seat 46 of the disposable cup insert 50. Depending on how much sealing material 1200 is placed into the channeled seat 60, where the scraping element 60 is positioned in the channeled seat 46 :reh-Ove to the sealipg material 1200 in the channeled seat 60, the width of the channeled seat 46, the width of the scraping element 60, and the like, the sealing material 1200 may extend between the scraping
9 element 60 and the disposable cup insert 50 along all three sides 1202, 1204, 1206 of the disposable cup insert 50 in the channeled seat 46 (in the perspective of 'FIGS. 1.2 and 13).
Alternatively, the sealing material 1200 may extend between the scraping element 60 and the disposable cup insert 50 along fewer than all three sides of the disposable cup insert 50 within the Channeled seat 46. For example, from the perspective of FIGS. 12 and 13, the sealing material 1200 may only be disposed beneath the scraping element 60, to the right of the scraping element 60, to the left of the scraping element 60, or a combination of two of these locations (e.g., beneath and to the left of the scraping element 60, beneath and to the right of the scraping element 60, or to the right and left of the scraping element 60).
100471 Placing the sealing material 1200 in the channeled seat 46 can provide an.
improved seal between the scraping element 60 and the disposable cup insert 50. The sealing material 1200 can physically and/or chemically bond with the disposable cup insert 50 and/or the scraping element 60 to improve the seal therebetween. Additionally, use of a sealing material 1200 that is flexible after curing can prevent cracking or tearing of the disposable cup insert 50.
Extended use of the disposable cup insert 50 can result in the scraping element 60 tearing or cracking the disposable cup insert 50 in or near the channeled seat 46. The flexible cured sealing material 1200 can prevent this tearing or cracking for an extended period of time relative to the scraping element 60 being placed into the channeled seat 46 without the sealing material 1200, thereby extending the time period over which the disposable cup insert 50 can be used.
100481 In another embodiment, the sealing material 1200 may be positioned between other components. For example, the sealing material 1200 may be positioned between two or more of the reusable hollow body, the disposable cup insert, and/or the scraping element described herein.
100491 FIG. 14 is a flowchart of one embodiment of a method 1400 for sealing a scraping element to a disposable cup insert. The method 1400 may be used to seal the scraping element 60 with the disposable cup insert 50. At 1402, a sealing material is placed into a channeled seat of the disposable cup insert. For example, the sealing material 1200 may be placed into the channeled seat 46 of the disposable cup insert 50 while the sealing material 1200 is in a fluid state. At 1404, the scraping element is placed into the channeled seat of the disposable cup insert. For example, the scraping element 60 may be placed into the channeled seat 46 of the disposable cup insert 50 and at least partially into the sealing material 1200. Alternatively, the scraping element 60 may be placed into contact with, but not into, the sealing material 1200. At 1406, the sealing material forms a seal between the scraping element and the disposable cup insert within the channeled seat of the disposable cup insert. For example, the sealing material 1200 may cure and bond (e.g., chemically and/or physically bond) with the disposable cup insert 50 and/or the scraping element 60 to form a flexible, semi-rigid, or rigid body that forms a seal between the scraping element 60 and the disposable cup insert 50 in the channeled seat 46 of the disposable cup insert 50.
100501 The previously disclosed flange embodiments of open outlet. 52 of disposable cup insert 50 can also have a flexible material composition to facilitate an expansion of liquid reservoir 54 as indicated by the dashed outline of reservoir body 51.
Furthermore, disposable cup insert 50 may be supported by reusable cup 40 by any other technique (e.g., friction and snaps).
0051.1 Referring to FIGS. 1-13, the embodiments described herein provide many advantages of the liquid, supply assembly including, but not limited to, a disposable cup insert nesting in a reusable cup to thereby hold liquid away from the reusable cup while permitting the normal use of the reusable cup by a pad printing system. The result is a significant reduction in labor, material and costs associated with a cleaning of the reusable cup.
100521 Furthermore, for the sealing configuration embodiment shown in FIG.
9, a suitable compressive engagement between cliché plate 20 and doctor blade 60 can be maintained over the circumference of doctor blade 60 irrespective of imperfections in the surface contact between cliche plate 20 and doctor blade 60 and irrespective of the pressurized environment within liquid reservoir 54.
100531 Additional sealing configurations are possible with in the scope of the invention as modifications or combinations of the presently illustrated embodiments, 100541 FIG. 10 illustrates a further advantage of the present invention.
Specifically, a black liquid supply assembly 30A includes a disposable cup insert 50.A
inserted into reusable liquid reservoir 44 of reusable cup 40 with its temporary liquid reservoir 54A
holding a black 41k/thinner liquid mixture 89 within reusable liquid resemon 44. As such, black ink held by temporary liquid reservoir 54A can be deposited in a receiving region of cliche plate 20A and any excess of the black ink in the receiving region can be scraped from cliche plate 20A by doctor ring 60, [00551 Upon a conclusion of a printing use of the black ink deposited in the receiving region of cliche plate 20A, another batch of the black ink/thinner liquid mixture 80 can be held by temporary liquid reservoir 54A within reusable liquid reservoir 44 for purposes of depositing more black ink in the receiving region of cliché plate 20A to thereby use the new hatch of black ink in another printing process. Alternatively, black liquid supply assembly 30A can be disassembled with a removal of disposable cup insert 50A from reusable liquid reservoir 44, and a red liquid supply assembly 30B can be assembled with a disposable cup insert 508 being inserted into reusable liquid reservoir 44 of reusable cup 40 with its temporary liquid reservoir 548 bolding a red inkftlinmer liquid mixture 81 within reusable liquid reservoir 44. As such, red ink held by temporary liquid reservoir 548 can be deposited in a receiving region of cliche plate 208 and any excess of the red ink in the receiving region can be scraped from cliché plate 208 by doctor ring 60.
10056] Upon a conclusion of a printing use of the red ink deposited in the receiving;
region of cliche plate 2013, another batch of the red ink/thinner liquid mixture 81 'can be held by temporary liquid reservoir 54/3 within reusable liquid reservoir 44 for purposes of depositing more red ink in the receiving region of cliché plate 208 to thereby use the new batch of red ink, in another printing process. Alternatively, red liquid supply assembly 3013 can be disassembled with a removal of disposable cup insert 50B from reusable liquid reservoir 44, and another liquid supply assembly can be assembled with reusable cup 40 as taught herein.
10057] In the disclosure, the words "a" or "an" are to be taken to include both the singular and the plural. Conversely, any reference to plural items shall, where appropriate, include the singular.
[0058] From the foregoing it will be observed that numerous modification and variations can be effectuated without departing from the true spirit and scope of the novel concepts of the present invention, It is to be understood that no limitation with respect to the specific embodnnetits illustrated is intended Or Should be interred. The disclosure is intended to cover by the appended claims all such modifications as 11d1 within the. scope of the claims.

Claims (10)

WHAT IS CLAIMED IS:
1. A liquid supply assembly for a printing system, the liquid supply assembly comprising:
a disposable cup insert that defines a liquid reservoir for holding ink, the disposable cup insert having a closed base and an opposite open outlet that is positioned at a first end of the disposable cup insert, the first end of the disposable cup insert including a channeled seat extending around the open outlet;
a scraping element shaped to be positioned inside the channeled seat of the first end of the disposable cup insert, the scraping element defining a conduit through which the ink flows from the liquid reservoir of the disposable cup insert to a cliché plate for applying the ink to one or more objects via the cliché plate; and a sealing material bonded to and positioned between the disposable cup insert and the scraping element;
wherein the sealing material is a flexible body that is bonded to the disposable cup insert and the scraping element when the scraping element is at least partially positioned in the sealing material when the sealing material is in a fluid state and the sealing material cures around the scraping element; and wherein the channeled seat of the disposable cup insert is defined by three sides of the disposable cup insert at the first end of the disposable cup insert, and the sealing material is disposed between the scraping element and each of the three sides of the disposable cup insert.
2. The liquid supply assembly of claim 1, wherein the sealing material forms a seal between the scraping element and the disposable cup insert in the channeled seat of the disposable cup insert that prevents passage of the ink between the scraping element and the disposable cup insert in the channeled seat.
3. The liquid supply assembly of claim 1 or 2, wherein the sealing material is formed from at least one of silicone or caulk.
4. The liquid supply assembly of any one of claims 1 to 3, wherein the sealing material is a rigid material.
5. The liquid supply assembly of any one of claims 1 to 4, wherein the sealing material prevents leakage of the ink in the liquid reservoir of the disposable cup insert outside of the scraping element.
6. The liquid supply assembly of any one of claims 1 to 5, wherein the disposable cup insert is flexible to allow the disposable cup insert to expand due to pressure increases within the liquid reservoir of the disposable cup insert.
7. A method comprising:
loading a fluid sealing material into a channeled seat in a first end of a disposable cup insert of a liquid supply assembly for a printing system, the disposable cup insert defines a liquid reservoir for holding ink used for printing with the printing system, the disposable cup insert having a closed base and an opposite open outlet that is positioned at the first end of the disposable cup insert;
placing a scraping element in the channeled seat of the disposable cup insert and at least partially into the fluid sealing material, the scraping element defining a conduit through which the ink flows from the liquid reservoir of the disposable cup insert to a cliché plate for applying the ink to one or more objects via the cliché plate; and bonding the fluid sealing material to the disposable cup insert and the scraping element within the channeled seat of the disposable cup insert, the sealing material forming a seal between the scraping element and the disposable cup insert in the channeled seat of the disposable cup insert that prevents passage of the ink between the scraping element and the disposable cup insert in the channeled seat;
wherein bonding the fluid sealing material to the disposable cup insert and the scraping element includes curing the fluid sealing material; and wherein the channeled seat of the disposable cup insert is defined by three sides of the disposable cup insert at the first end of the disposable cup insert, and the scraping element is placed into the channeled seat of the disposable cup insert such that the sealing material is disposed between the scraping element and each of the three sides of the disposable cup insert.
8. The method of claim 7, wherein the fluid sealing material cures into a flexible sealing body.
9. The method of claim 7 or 8, wherein the fluid sealing material cures into a rigid sealing body.
10. The method of any one of claims 7 to 9, wherein the sealing material is formed from at least one of silicone or caulk.
CA2904513A 2013-03-11 2014-02-08 Disposable cup insert for pad printing and decorating Active CA2904513C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US13/793,689 US20130327414A1 (en) 2005-12-29 2013-03-11 Disposable cup insert for pad printing and decorating
US13/793,689 2013-03-11
PCT/US2014/015444 WO2014163755A1 (en) 2013-03-11 2014-02-08 Disposable cup insert for pad printing and decorating

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CA2904513C true CA2904513C (en) 2017-12-19

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US5852972A (en) * 1998-01-22 1998-12-29 Wolstenholme; Marc W. Transfer printing pad socket assembly
DE19908865A1 (en) * 1999-03-01 2000-09-07 Itw Morlock Gmbh Ink pot for pad printing press, including bottom closing cap for temporarily closing lower end of pot
WO2007078525A2 (en) * 2005-12-29 2007-07-12 Illinois Tool Works Inc. Disposable cup insert for pad printing and decorating
US8393267B2 (en) * 2005-12-29 2013-03-12 Illinois Tool Works, Inc. Disposable cup insert for pad printing and decorating
DE102008029300B4 (en) * 2008-06-19 2012-01-26 Itw Morlock Gmbh Pad Printing Machine
US9821546B2 (en) * 2009-01-13 2017-11-21 Illinois Tool Works Inc. Digital cliche pad printing system and method
WO2010113373A1 (en) * 2009-04-01 2010-10-07 株式会社秀峰 Printing method and object to be printed
CN102145575B (en) * 2010-11-19 2012-10-03 吴东杰 Printing system for backing sheet-free tags

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CN105189121B (en) 2018-08-24
WO2014163755A1 (en) 2014-10-09
EP2969569A1 (en) 2016-01-20
MX2015011790A (en) 2016-01-14
CN105189121A (en) 2015-12-23
EP2969569B1 (en) 2016-11-30
CA2904513A1 (en) 2014-10-09
MX369706B (en) 2019-11-19

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