EP0167906A2 - Tête d'impression pour machine de sérigraphie - Google Patents

Tête d'impression pour machine de sérigraphie Download PDF

Info

Publication number
EP0167906A2
EP0167906A2 EP85107727A EP85107727A EP0167906A2 EP 0167906 A2 EP0167906 A2 EP 0167906A2 EP 85107727 A EP85107727 A EP 85107727A EP 85107727 A EP85107727 A EP 85107727A EP 0167906 A2 EP0167906 A2 EP 0167906A2
Authority
EP
European Patent Office
Prior art keywords
squeegee
printhead according
profile
holder
support
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.)
Granted
Application number
EP85107727A
Other languages
German (de)
English (en)
Other versions
EP0167906B1 (fr
EP0167906A3 (en
Inventor
Rudolf August Kürten
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.)
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27436273&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0167906(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE19848420447 external-priority patent/DE8420447U1/de
Priority claimed from DE19848423641 external-priority patent/DE8423641U1/de
Priority claimed from DE19848429458 external-priority patent/DE8429458U1/de
Priority claimed from DE19858508097 external-priority patent/DE8508097U1/de
Priority to AT85107727T priority Critical patent/ATE58869T1/de
Application filed by Individual filed Critical Individual
Publication of EP0167906A2 publication Critical patent/EP0167906A2/fr
Publication of EP0167906A3 publication Critical patent/EP0167906A3/de
Publication of EP0167906B1 publication Critical patent/EP0167906B1/fr
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/40—Inking units
    • B41F15/42—Inking units comprising squeegees or doctors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/44—Squeegees or doctors

Definitions

  • the invention relates to a print head for a screen printing machine, which is guided so that it can be pushed back and forth in the longitudinal direction of the screen and comprises a printing squeegee running transversely to the longitudinal direction of the screen.
  • These pressure doctor blades have so far been made entirely of flexible material and have an elongated rectangular cross section. At the upper end of this cross-section, the printing squeegees are clamped over their entire length in a holder which, during operation, guides them over the screen at a certain angle, so that the ink applied to them is pressed through by the printing squeegee.
  • the ink In order to obtain clean prints, the ink must be evenly distributed and the squeegee should rest on the screen over its entire length with the most uniform possible pressure.
  • the squeegee should have a sharp edge on its lower end resting on the screen, but on the other hand it should be soft and elastic so that the screen is not damaged or prematurely worn out.
  • a pressure squeegee made of soft elastic material bends more or less under the pressure of the holding device, so that the angle at which the squeegee rests on the screen changes.
  • the pressure doctor blades are made of a hard elastic material in order to keep their deflection as low as possible, then the screens made of textile are quickly damaged or worn out. You are then forced to use metallic sieves, but they have other disadvantages, especially that of a very high price.
  • the invention has for its object to provide a squeegee for screen printing, which does not have the aforementioned disadvantages, but is relatively soft directly at the support point, but above it is again relatively hard, so that it does not bend too much under pressure from its holding device .
  • the squeegee comprises a squeegee holder with an elongate support rail, which is removably inserted in it, made of a hard elastic material and a profile strip made of a soft elastic material, which is located on the edge of this support rail, which is at the bottom during operation, and is connected to the support rail.
  • the two-dimensional connection can be made in various ways, for example by gluing or welding, depending on the materials used in each case.
  • the carrier rail is preferably a plate which is thin in relation to its width or consists of two plates arranged at a distance from one another.
  • the shape of the support rail can vary within relatively wide limits.
  • the support rail can have a U-shaped cross section, the profile strip being inserted between the ends of its two legs.
  • Such a relatively thin support rail can hardly be bent transversely to its longitudinal direction, since it consists of a hard elastic material, for example of glass fiber reinforced polyester or also of steel.
  • the support rail can also be made of plastic, with the edge of the support rail lying below during operation being relatively soft and the remaining part of the support rail set to be relatively soft in a special production process, and these two sections produced in one and the same production process being integrally connected to one another.
  • profile strip For the rest, however, different materials can be used for the profile strip, provided that they are only flexible on the one hand and on the other hand are resistant to the screen printing inks used.
  • natural or synthetic rubber can be used for the profile strips.
  • connection between the support rail and the profile strip is made by gluing or welding or, as stated above, by integrally connecting the two together during manufacture.
  • the carrier rail is made of glass fiber reinforced polyester and the profile strip is made of synthetic rubber, it is advisable to press the profile strip on before the polyester has finally hardened. There is then an intimate connection between the mounting rail and profile strip during curing.
  • the method of connection is not the subject of the invention.
  • the profile strip has a rectangular or L-shaped or U-shaped cross section.
  • the profile strip can also have a T-shaped or E-shaped cross-section, provided that it is inserted between two plates or legs of a support rail.
  • the pressure doctor blades proposed above are very resistant to deflection because of the hard elastic design of the support rail, they can be bent somewhat over their length. This is desirable if a holding device for the printing squeegee is used, which is provided with a plurality of adjusting screws distributed over the length, so that one can then realize any desired distribution of the pressing forces over the length.
  • printing squeegees are expediently used, in which the support rail comprises two plates arranged at a distance from one another.
  • the profile strip used in the squeegee holder is fastened either by screws or by a tensioning lever or by a pneumatic or hydraulic tensioning device.
  • the profile strip can also be attached in a simple manner by means of a plurality of balls which are distributed over the length of the blade holder and are under spring pressure.
  • the soft, elastic materials from which the doctor blade profiles are made are not sufficiently stable chemically and therefore mechanically. Rather, the doctor blade profile absorbs components of the printing inks and thereby changes its density and shape, if only slightly. These changes in the shape and also in the elasticity of the squeegee profile then change the initially set angle of attack and thus also the force exerted by it on the screen fabric.
  • This difference may be acceptable in certain cases, for example when the individual prints are hung in different places.
  • the instabilities of the doctor blade profiles mentioned at the outset also affect the length of the profiles in different ways.
  • An originally exactly linear doctor blade profile may then take on a wave form after a certain number of printing processes or at least generate different pressing forces over its length. Under certain circumstances, this means that larger color areas no longer appear uniform, but look cloudy, so that the print job can be spoiled here too.
  • the printing doctor blade In order to improve the printing doctor blade in this respect, it is proposed to assign the printing doctor blade a one-part or multi-part support profile made of a hard-elastic material, which extends over and supports the entire length of the doctor blade profile.
  • the support profile has an angular cross section and is arranged such that the end face of the free end his one leg against the doctor profile.
  • the support profile is attached with its other leg by means of several holders to a holding rail which extends parallel to and at a distance from the doctor holder.
  • each holder is pivotable about an axis that runs parallel and at a distance from the doctor profile, and that adjusting means are provided for adjusting the inclination of each holder relative to the doctor holder.
  • the adjusting means expediently each comprise an adjusting screw which support the holder and the doctor holder against one another and are screwed into a threaded bore in the holder.
  • the support profile on the squeegee namely on its support rail, can either engage somewhat closer to the clamping point or closer to the profile bar.
  • the support profile is adjustable parallel to itself, so that you can change the spring constant of the squeegee and thus its pressure properties as desired.
  • the support profile 1 can be pivoted about an axis which runs parallel and at a distance from the working edge of the profile strip, and that an adjusting screw is provided for adjustment, which is supported on the doctor holder.
  • the angle which the profile strip forms with the screen fabric or the like can still be adjusted within certain limits when the doctor holder is firmly clamped.
  • Another, simpler design of the support profile consists of an angle assigned to the printing squeegee, which is supported with its one leg against the part of the printing squeegee adjacent to the clamping point of the support rail and is attached to the squeegee holder with the other leg.
  • the printhead according to the invention in the manner described above can also carry in a manner known per se, in addition to the printing squeegee, a preliminary squeegee guided together with it, which is offset in the longitudinal direction of the screen relative to the printing squeegee and can be lowered or lowered alternately with the printing squeegee can be raised.
  • Such a known doctor blade serves for the uniform distribution of the printing ink applied to the screen.
  • the pre-squeegee and the print squeegee have a straight working edge.
  • the known pre-squeegee must be pressed down so far that the sieve finally lies more or less well against the straight working edge. Only then can the ink be distributed by moving the doctor blade forward.
  • the known squeegee must be shorter than the width of the screen, the printing ink cannot be evenly distributed up to the edge of the screen.
  • the pre-doctor blade has an arcuate working edge and is arranged in the print head so as to be rotatable about an axis running through its ends. This axis runs transverse to the direction of movement of the print head and parallel to the print doctor.
  • This squeegee can be lowered by pivoting about said axis with its arcuate working edge onto the surface of the screen sagging in the transverse direction in the center, the working edge lying against the surface of the screen over its entire length, so that the printing ink moves as the print head moves forward is evenly distributed over the entire width of the sieve.
  • the arch shape of the working edge of the pre-doctor blade can be adapted to the most frequently occurring curvature of the sag of the screen. As the doctor blade moves forward with its arcuate curved working edge, the printing ink applied in the middle of the screen on both sides of the curved working edge decreases slide so that the distribution of the printing ink is effected very evenly up to the lateral edges of the screen.
  • the pre-doctor blade is preferably formed by an arcuately curved band-shaped element.
  • the band-shaped element is preferably provided at its ends with bearing journals which are aligned with one another and are inserted into corresponding bearings in the print head.
  • a smaller or greater curvature of the band-shaped element can be achieved by displacing the two bearing journals or at least one of them in the axial direction.
  • This makes it possible to optimally adapt the pre-doctor blade to different screens. Depending on the material of the screen and its mesh size, this will have a larger or smaller sag in the transverse direction, to which the curvature of the pre-doctor can then be adjusted.
  • the known squeegee 1 shown in FIG. 1 consists of a squeegee holder 2 and a squeegee profile 3 inserted into a slot in a narrow side thereof.
  • the squeegee holder generally consists of metal or another hard and stable material, while the squeegee profile consists of a more or less soft elastic material, for example made of rubber or a thermoplastic material.
  • Fig. 1 shows this squeegee 1 in the working position, wherein an edge on the end face of the free end of the squeegee profile 3 touches the top of the screen fabric 5 and the squeegee profile 3 here at an acute angle with respect to the plane of the screen fabric is posed. In the acute angle there is an amount of ink 4 applied to the screen cloth, which is spread over the screen cloth 5 by moving the squeegee 1 (in the drawing) to the right.
  • the printing ink 4 is pressed through the permeable points of the screen fabric and there represents the print job 7 on the print carrier 6 lying under the screen fabric, which rests on a print bed 8. Paper, cardboard, textile, plastic film or the like are used as print media.
  • the contact of the doctor blade profile with the printing ink causes a chemical and physical change in the dimension of this profile and its mechanical properties, so that the deflection changes more or less strongly over time.
  • a doctor blade profile can be used made of a soft elastic material in the R akelhalter, but a support rail of a hard elastic material, which carries a profiled strip made of flexible material at its lower end.
  • FIGS. 2 to 11 different versions of such pressure doctor blades are shown, wherein either a simple support rail 9 or a double support rail 11, 12 and at the lower end of a profile strip 10 are connected to each other.
  • the same reference numerals are used in FIGS. 2 to 11 for the various exemplary embodiments, but with different indices a ... k.
  • the doctor blade holder 13a shown in FIG. 12 removably carries a support rail 19a made of a hard elastic plastic in a slot 14a on its underside.
  • the determination is made with the interposition of a steel strip 15a by means of several over the length the pressure squeegee distributed tensioning levers 18a, which are pivotably mounted in the opening 16a receiving the steel strip 15a and are provided with eccentrics 17a.
  • FIG. 13 shows a doctor blade holder 13b with a receiving slot 14b into which a support rail 19b made of sheet steel with a profile strip 20b made of soft rubber which is glued on at the bottom is inserted.
  • a steel bar 15b for distributing the clamping forces over the entire length of the support rail is placed on it, which was introduced into the opening 16b.
  • a plurality of cam levers 17b distributed over the length of the doctor holder are also pivotably mounted in this opening.
  • the piston rod of a pneumatic clamping device 22b is articulated to the other ends of these cam levers at 21b.
  • This tensioning device is fastened to the doctor holder 13b by means of an angle 23b.
  • all cam levers 17b arranged distributed over the length of the doctor holder 13b can be actuated by a single pneumatic clamping device 22b.
  • the printing doctor blade 24 shown in FIG. 14 comprises a doctor blade holder 25 made of metal, which can be inserted into a print head (not shown), and a doctor blade profile 26 made of a predetermined softness inserted into a slot of the doctor blade holder.
  • the squeegee 25 takes over the task of the support rail.
  • the squeegee profile 26, which is made of soft rubber is supported over its entire length on its side opposite the printing ink 4 by an angled support profile 27 made of sheet steel.
  • the support profile has a lower leg 29, which lies just above the lower free end of the doctor profile 26 against it and thereby supports it.
  • the upper leg 28 the support professional 27 is attached to a holder 30, which is also attached to the printhead.
  • FIG. 27 A simplified form of fastening the support rail in the doctor blade holder is shown in FIG. 27.
  • the squeegee holder 13m with screwed-on cover plate 82 has a slot 80 on the underside for receiving the upper edge of a support rail 19m, and has a plurality of bores distributed over its length, in which there are compression springs 81 and balls 15m acted upon by them.
  • the bores are somewhat narrowed at their openings in the slot 80, which is done in a simple manner by deforming the edges of the bores with a chisel.
  • the balls cannot fall into the slot, but are partially pressed into this slot 80 by the compression springs 15m.
  • the dimensions are such that the balls hold a pressed-in support rail 19m under pressure.
  • the doctor blade holder 35 carries a solid support rail 25c, into which a profile strip 26c made of soft rubber is inserted on the underside.
  • the support rail 25c is plugged onto the doctor holder 35 and is held thereon by fastening means, not shown.
  • the squeegee holder 35 also carries a plurality of supports 33 distributed over its length, each of which is fastened to the squeegee holder 35 by means of two fastening screws 34.
  • Each of these carriers 33 has at its lower free end a transverse bore (without reference number) which runs parallel to the longitudinal direction of the doctor holder 35. This bore receives the bearing part 38 of a bearing pin 36, which has a threaded part 37 at its other end.
  • the bearing pin 36 is with this threaded part 37 in a threaded hole in a holder 30c screwed tight.
  • Each of these holders 30c which is distributed over the length of the doctor holder, is screwed to an angled support profile 27c by means of two screws 31, to be precise with the upper leg 28c thereof, while the lower leg 29c is supported against the profile strip 26c.
  • the support profile 27c is thus supported at several points along its length by such holders 30c, which are each pivotally connected to the doctor holder 35 via the bearing bolts 36 and the supports 33.
  • the profile strip 26c should not be aligned quite uniformly over its length, or if the paint application across the profile strip 26c should be different for any other reason, these differences can be eliminated by adjusting the individual adjusting screws 32 in FIG Adjust holder 30c in different ways.
  • the support profile 27c consists of relatively thin sheet steel, one can use the adjusting screws 32 make a slight bend of the support profile 27c along its length in the desired manner, provided that it is only a slight bend.
  • FIG. 18 A stronger deformation of the support profile is no longer possible due to its angled shape. If you want to make major bends, use the multi-part design of the support profile shown in FIG. 18, which here consists of several short parts 27d. The lower legs 29d of these individual parts lie side by side on the profile strip 26d. The upper legs of the individual support profiles 27 d are then each attached to individual holders which can be adjusted independently of one another by means of their adjusting screws (not shown).
  • the squeegee holder 25e shown in FIG. 19 in turn has a slot 14e on its underside, into which a support rail 9e made of sheet steel with a profiled strip 10e made of soft rubber is inserted, a steel strip 15e again being placed underneath and fastened by screws 40.
  • the doctor blade holder 25e has a further slot at a distance from the aforementioned slot 14e, which continuously runs through it from top to bottom. At certain distances distributed over the length of the doctor holder 25e, however, webs (not shown) are provided which pass through the aforementioned slot and hold the part of the doctor holder 25e located to the left of the slot.
  • the upper leg 27e of an angled support profile is slidably arranged, the lower leg of which lies against the support rail 9e.
  • the upper leg of the support profile 27e which is displaceable in the slot, is provided with a toothing 41 into which a pinion 42 rotatably mounted in the doctor holder 25e engages.
  • This pinion can be rotated by a lever 44, so that the support profile 27e then inevitably moves in the direction of the arrow 43 downwards or upwards.
  • the free length "1" of the support rail 9e can be changed within certain limits, as a result of which the spring characteristic can then be changed as desired.
  • the squeegee holder 25f again has a slot 14f on the underside for receiving a support rail 9f made of sheet steel with a profiled strip 10f made of soft rubber placed at the bottom. A steel strip 15f is in turn inserted into the slot, which can be tightened by screws 40f.
  • the squeegee holder 25f has a rounded projection 45, which serves as a pivot bearing for an n support profile 1 27f. This support profile is angled on the underside and presses with the lower leg 29f against the support rail 9f.
  • a screw 46 is screwed into said projection 45, which extends through a slightly further held hole in the upper leg of the support profile 27f.
  • This support profile can be pivoted to a limited extent.
  • FIG. 21 shows a doctor holder 25g with a receiving slot 14g and fastening screw or fastening screws 40g.
  • a support rail 9g made of hard plastic with a profile strip 10g made of soft-elastic plastic glued on at the bottom is used.
  • a continuous support bracket 48 is screwed onto the underside of the squeegee holder 25g by means of screws 49, which, with its free, downwardly projecting leg, fits snugly against one side of the support rail 9g and thereby supports it.
  • the squeegee holder shown in FIG. 22 consists of an upper part 25h to be clamped in the printhead and a lower part 50 connected to the latter via a joint 51, which again has a slot 14h on the underside for receiving a support rail 9h made of a rigid plastic.
  • a steel bar 15h is inserted into the opening 16h and the fastening is carried out by a tensioning lever 18h, which is designed as an eccentric 17h in its part adjacent to the joint.
  • a leaf spring 53 is fastened by means of screws 54, which presses with its lower free end against the other part 50 of the squeegee holder and, when the upper part 25h is clamped in, the lower part 50 and thus the support rail 9h is pivoted to the right.
  • FIG. 23 shows another embodiment of a two-part doctor blade holder, the two parts 25i and 50i of which are pivotally connected to one another by a joint 51i.
  • the upper part 25i is intended for clamping in the print head of a screen printing machine and has a blind hole 55, into which a helical compression spring 56 is inserted.
  • two or more such bores with helical compression springs are expediently provided.
  • the lower part 50i of the squeegee holder is angular in profile and carries, by means of screws 40i, a support rail 9i made of a hard plastic, which carries a profile strip 10i made of flexible plastic on the underside.
  • the helical compression spring 56 presses with its lower end onto the upper side of the lower part 50i of the squeegee holder and thereby pivots this and with it the support rail 9i counterclockwise.
  • the print head shown in FIGS. 24 to 26 contains not only the actual print doctor, but also a preliminary doctor connected upstream of it.
  • the printhead is designed so that either the pre-squeegee or the printing squeegee is alternately lowered onto the screen while the other squeegee is raised. This technique is known and the pre-squeegee is used to distribute ink applied to the screen as evenly as possible over the screen before printing.
  • This screen 61 of a screen printing machine which is only indicated by two rails 64, 65 running alongside the screen in the longitudinal direction thereof, can consist of silk, nylon or V2A steel wire or for textile printing of polyester or bronze wire with a different number of meshes.
  • the screen has reinforcements 62 on its longitudinal edges, which are also tensioned when the screen is tensioned in the longitudinal direction.
  • the central area in the transverse direction of the screen depends more or less depending on the different material properties.
  • rails 64, 65 run in the longitudinal direction thereof, on which the print head is slidably arranged.
  • the printhead includes two slides 66, 67 guided on the rails, one extending between the slides and for printing on the Sieve 61 lowerable printing squeegee 70 and a preliminary squeegee 71 and 71 ′′ offset with respect to the printing squeegee in the longitudinal direction of the sieve.
  • Both the printing squeegee 70 and the preliminary squeegee 71 are carried at their ends by holders 68, 69 which are arranged on the slides 66, 67
  • the brackets 68, 69 comprise mechanisms by means of which the squeegee 70 can be lowered for printing on the screen 61 and then raised again, and the same mechanism comprises the brackets 68, 69 for the squeegee 71. Both mechanisms cooperate in such a way that when the squeegee is lowered, the squeegee is raised, and when the squeegee 71 is lowered, the mechanisms automatically raise the squeegee 70.
  • the doctor blade 71 is formed by a band-shaped element which is curved in an arc.
  • the curvature is shown in solid lines in Fig. 24. (However, the band-shaped element can also be curved in the opposite direction in the form of an arc, as is illustrated in dash-dot lines at 71 "in FIG. 24.)
  • the two ends of the band-shaped element carry journals 72, 73. These journals are rotatably supported in the brackets 68, 69.
  • the bearing pin 73 carries a stop disc 77 so that it cannot move further than shown in the drawing into the holder.
  • the bearing journal 72 is provided with an external thread in the area between the end of the band-shaped element and the holder, onto which nuts 75, 76 are screwed.
  • the trunnion 72 becomes out of the holder 69 moved to the other journal 73.
  • a predetermined curvature of the band-shaped element can be set by the displacement of the bearing pin. The set curvature is fixed by tightening the two nuts 75, 76.
  • the free end of the journal 72 is provided with a handle 74 in a rotationally fixed manner.
  • the entire preliminary doctor blade can be pivoted about the axis of the two bearing journals 72, 73.
  • the curved area of the pre-squeegee can thus be lowered onto the screen, as is illustrated by dash-dotted lines in FIG. 26 at 71 '.
  • the working edge of the pre-doctor adapts to the sagging surface of the screen.
  • the applied printing ink becomes in front of the arrow head as it moves forward in the direction of arrow X. reach the inclined surface of the doctor blade 71 '.
  • the printing ink which is initially only in the middle, moves outward along the working edge of the squeegee, that is to say toward the two edges of the ribbon. In this way, the printing ink is distributed over the entire width of the band 61 as the print head moves forward.
  • the squeegee 71 ' is raised by the corresponding mechanism in the direction of the arrow 78, while the squeegee 70 is lowered in the direction of the arrow 79.
  • the pad to be printed is then moved up against the screen as the print head is moved in the direction of arrow X ', the lowered squeegee 70 pressing the ink through the screen onto the pad.
  • the printing squeegee 70 is raised again in the direction of the arrow 79, as a result of which the preliminary squeegee 71 'lowers onto the screen 61, which is now sagging again in its central region.
  • the print head is returned in the direction of the arrow X, the printing ink is again distributed evenly over the entire width of the screen 61, so that after the mechanisms have been changed, i. by lowering the squeegee 70 and raising the squeegee 71 ', a new printing process can begin.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)
EP85107727A 1984-07-07 1985-06-22 Tête d'impression pour machine de sérigraphie Expired - Lifetime EP0167906B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85107727T ATE58869T1 (de) 1984-07-07 1985-06-22 Druckkopf fuer eine siebdruckmaschine.

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
DE19848420447 DE8420447U1 (de) 1984-07-07 1984-07-07 Druckrakel fuer den siebdruck
DE8420447U 1984-07-07
DE19848423641 DE8423641U1 (de) 1984-08-09 1984-08-09 Rakel fuer siebdruck
DE8423641U 1984-08-09
DE8429458U 1984-10-06
DE19848429458 DE8429458U1 (de) 1984-10-06 1984-10-06 Druckrakel fuer den siebdruck
DE8508097U 1985-03-19
DE19858508097 DE8508097U1 (de) 1985-03-19 1985-03-19 Druckkopf für eine Siebdruckmaschine

Publications (3)

Publication Number Publication Date
EP0167906A2 true EP0167906A2 (fr) 1986-01-15
EP0167906A3 EP0167906A3 (en) 1987-10-28
EP0167906B1 EP0167906B1 (fr) 1990-12-05

Family

ID=27436273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85107727A Expired - Lifetime EP0167906B1 (fr) 1984-07-07 1985-06-22 Tête d'impression pour machine de sérigraphie

Country Status (3)

Country Link
US (1) US5001979A (fr)
EP (1) EP0167906B1 (fr)
DE (1) DE3580797D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19512696A1 (de) * 1994-10-14 1996-04-18 Rk Siebdrucktechnik Gmbh Siebdruckverfahren
FR2746704A1 (fr) * 1996-03-29 1997-10-03 Fimor Tete de raclage, notamment pour serigraphie

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5099783A (en) * 1990-04-17 1992-03-31 Graco Inc. Doctor blade cap
FR2691925B1 (fr) * 1992-06-05 1994-08-05 Fimor Porte-racle destine notamment a une machine de serigraphie, ensemble de raclage et procede de montage d'une racle et de reglage d'un tel porte-racle.
US5458060A (en) * 1993-05-03 1995-10-17 Sony Electronics Inc. Screen printing squeegee system
JP3431729B2 (ja) 1995-07-12 2003-07-28 松下電器産業株式会社 回路基板の製造方法及び製造装置
US5813330A (en) * 1996-06-10 1998-09-29 Stretch Devices, Inc. Adjustable flexibility squeegee with replaceable contact blade
US5722321A (en) * 1996-10-16 1998-03-03 Elexon Ltd. Blade mounting assmbly for sreen printing apparatus
GB9913496D0 (en) * 1999-06-10 1999-08-11 Williams David G Improved squeegee or sealing means/wiper
GB2351259A (en) * 1999-06-22 2000-12-27 Dek Printing Machines Ltd Blades for screen printing
CN102886979A (zh) * 2012-11-03 2013-01-23 海南亚元防伪技术研究所 柔版/凹版用柔性刮刀
GB2582635B (en) * 2019-03-28 2021-12-29 Archipelago Tech Group Ltd Device, method, and assembly for loading nozzles with fluid
DE102019127817A1 (de) * 2019-10-15 2021-04-15 Lambotec GmbH Computerimplementiertes Verfahren zur Steuerung einer Siebdruckmaschine, computergesteuerte Siebdruckmaschine
DE102023135190A1 (de) * 2023-12-14 2025-06-18 TKM Meyer GmbH Rakeleinrichtung einer Tiefdruckmaschine und Verfahren zum Einstellen der effektiven Steifigkeit einer Rakel

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR749535A (fr) * 1932-02-13 1933-07-25 Perfectionnements aux racles pour machines textiles et autres
US2187421A (en) * 1937-01-05 1940-01-16 Interchem Corp Doctor blade
US2151969A (en) * 1938-06-09 1939-03-28 Standard Process Corp Inking apparatus and method
GB675257A (en) * 1947-12-16 1952-07-09 Meyercord Co Improvements in or relating to stencil screen printing machines
FI32443A (fi) * 1958-01-10 1962-04-10 Pyörivien telojen kaavinlaite
FR1212378A (fr) * 1958-10-14 1960-03-23 Perfectionnements aux racles pour l'impression à la lyonnaise
CH391639A (de) * 1958-11-11 1965-05-15 Ichinose Hisakichi Automatische Stoffdruckmaschine
US3040442A (en) * 1959-04-27 1962-06-26 Lyle S Overton Blade assembly for drum dryers or the like
US3143961A (en) * 1962-07-16 1964-08-11 Matthew L Jaffa Screen printing head and improved squeegee assembly therefor
US3186339A (en) * 1963-07-17 1965-06-01 Flynn & Emrich Company Fluid operated fountain blade
DE2323209A1 (de) * 1973-05-08 1974-11-28 Haka Textildruckerei Heinz Kar Siebdruckmaschine
US3866266A (en) * 1973-11-09 1975-02-18 Lodding Engineering Corp Self-adjusting doctor blades
FR2302199A1 (fr) * 1975-02-25 1976-09-24 Alsacienne Constr Meca Perfectionnement aux porte-racles de machines a imprimer au pochoir
GB1523874A (en) * 1975-09-17 1978-09-06 Letraset International Ltd Squeegee blade
DE2710673A1 (de) * 1977-03-11 1978-09-14 Barwick E T Ind Siebdruck-rakelvorrichtung
US4102266A (en) * 1977-03-18 1978-07-25 James A. Black Squeegee, ink scoop and flood blade assembly
NL7811246A (nl) * 1978-11-14 1980-05-19 Stork Brabant Bv Rakel voor zeefdrukmachine.
DD153476A3 (de) * 1980-04-10 1982-01-13 Hans Johne Verschmutzungsschutz an farbkaesten von druckmaschinen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19512696A1 (de) * 1994-10-14 1996-04-18 Rk Siebdrucktechnik Gmbh Siebdruckverfahren
FR2746704A1 (fr) * 1996-03-29 1997-10-03 Fimor Tete de raclage, notamment pour serigraphie
WO1997036747A1 (fr) * 1996-03-29 1997-10-09 Fimor Societe Anonyme Racle pour une machine de serigraphie

Also Published As

Publication number Publication date
EP0167906B1 (fr) 1990-12-05
DE3580797D1 (de) 1991-01-17
EP0167906A3 (en) 1987-10-28
US5001979A (en) 1991-03-26

Similar Documents

Publication Publication Date Title
EP0315817B1 (fr) Machine pour impression sérigraphique
EP0167906B1 (fr) Tête d'impression pour machine de sérigraphie
DE19718113A1 (de) Druck-Walzenrakelvorrichtung
DE2207935A1 (de) Einstellbare Halterung für eine Abstreichklinge im Inneren einer drehbaren Schablone einer Druckmaschine für Streifenmaterial
DE602004009477T2 (de) Vorabstreifer für ein förderband
CH668922A5 (de) Verfahren und vorrichtung fuer die streichbeschichtung einer sich bewegenden materialbahn.
EP0602431A1 (fr) Dispositif de racle d'essuyage
DE3101300C2 (de) Rakelvorrichtung
DE10362093B4 (de) Vorrichtung zum Siebdrucken und Siebdruckverfahren zum Bedrucken gekrümmter Oberflächen
DE4207731A1 (de) Abstuetzleiste fuer eine beschichtungsvorrichtung
DE1966853A1 (de) Rakelvorrichtung fuer rotationssiebdruckmaschinen
DE69620464T2 (de) Klingenhalterung
DD275992A3 (de) Rakelmesserhalter mit selbsttaetigem rakeldruckausgleich
EP0082462B1 (fr) Imprimante électrographique
DE3220489A1 (de) Siebdruckmaschine
DE2739987A1 (de) Mehrzweck-siebdruckmaschine
DE69903490T2 (de) Farbwerk
DE3032345C2 (de) Lagerung einer Rakel mit seitlich außerhalb der Schablone eines Siebdruckwerkes angeordneten Lagern
EP0808668A2 (fr) Dispositif d'application pour l'application directe ou indirecte d'un liquide ou d'une pâte sur une bande en défilement
EP0608661A1 (fr) Dispositif pour le revêtement des écrans d'impression
DE8420447U1 (de) Druckrakel fuer den siebdruck
DE9416951U1 (de) Dosiereinrichtung
DE8423641U1 (de) Rakel fuer siebdruck
DE3032401A1 (de) Druckwerk einer siebdruckmaschine mit zylindrischer schablone
DE9107637U1 (de) Vorrichtung zur Rakellagerung bei Druckmaschinen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19870619

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17Q First examination report despatched

Effective date: 19890613

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 58869

Country of ref document: AT

Date of ref document: 19901215

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3580797

Country of ref document: DE

Date of ref document: 19910117

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ITF It: translation for a ep patent filed
ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: PRSS MASCHINEN AG

Effective date: 19910904

NLR1 Nl: opposition has been filed with the epo

Opponent name: PRSS MASCHINEN AG.

PLBM Termination of opposition procedure: date of legal effect published

Free format text: ORIGINAL CODE: 0009276

PLAD Information related to termination of opposition procedure modified

Free format text: ORIGINAL CODE: 0009299OPPC

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION PROCEDURE CLOSED

ITTA It: last paid annual fee
27C Opposition proceedings terminated

Effective date: 19930304

R27C Opposition proceedings terminated (corrected)

Effective date: 19930304

NLR2 Nl: decision of opposition
EPTA Lu: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 85107727.1

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20040607

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20040611

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20040617

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20040618

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20040623

Year of fee payment: 20

Ref country code: CH

Payment date: 20040623

Year of fee payment: 20

Ref country code: BE

Payment date: 20040623

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20040628

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20040824

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20050621

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20050622

BE20 Be: patent expired

Owner name: *KURTEN RUDOLF AUGUST

Effective date: 20050622

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed
NLV7 Nl: ceased due to reaching the maximum lifetime of a patent

Effective date: 20050622

BE20 Be: patent expired

Owner name: *KURTEN RUDOLF AUGUST

Effective date: 20050622