EP0095084A1 - Racle pour une installation d'impression ou de teinture de matières en bandes - Google Patents

Racle pour une installation d'impression ou de teinture de matières en bandes Download PDF

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Publication number
EP0095084A1
EP0095084A1 EP83104583A EP83104583A EP0095084A1 EP 0095084 A1 EP0095084 A1 EP 0095084A1 EP 83104583 A EP83104583 A EP 83104583A EP 83104583 A EP83104583 A EP 83104583A EP 0095084 A1 EP0095084 A1 EP 0095084A1
Authority
EP
European Patent Office
Prior art keywords
doctor
feed
carrier
feed part
doctor device
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.)
Withdrawn
Application number
EP83104583A
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German (de)
English (en)
Inventor
Mathias Mitter
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
Application filed by Individual filed Critical Individual
Publication of EP0095084A1 publication Critical patent/EP0095084A1/fr
Withdrawn legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B19/00—Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00
    • D06B19/0088—Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00 using a short bath ratio liquor
    • D06B19/0094—Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00 using a short bath ratio liquor as a foam

Definitions

  • the invention relates to a doctor device according to the preamble of claim 1.
  • a doctor device according to the preamble of claim 1 is already known, namely from DE-OS 23 65 622. This known device points between the supply part for the application medium and the actual doctor part a pressure pad to press the squeegee against a stencil inner wall and thereby seal it.
  • the color must come from the paint tube, i.e. from the feed part of the application medium, e.g. over a myriad of tubes around the pressure pad to reach the doctor part.
  • Ink can only be introduced into the squeegee part via these hoses, since the path of the printing cushion through the ink supply hoses must be compensated.
  • DE-OS it is known from the aforementioned DE-OS either not to guide the doctor part at all, which causes an unstable suspension of the doctor part, or to hold and guide it via a laterally arranged parallelogram.
  • this parallelogram moves the squeegee part from the optimal position, for example inside a cylinder template, which means that disadvantages in the print job have to be accepted, particularly in the case of sensitive prints.
  • the invention specified in claim 1 is therefore based on the object of providing a device which is structurally simpler than the known one.
  • FIG. 1 shows a doctor device 1, installed in a cylinder template 2, which has side bearing heads 20, 21, to which the doctor device 1 is fastened in a height-adjustable manner.
  • the doctor device 1 consists of a carrier part 10, through which the feed part 11 and the doctor part 12 is held, and at least one elastic element 15 to achieve the mobility of the unit 11, 12. It is shown that the carrier part 10 is fastened to the side bearing heads 20, 21, so that there is a guarantee that if these are adjusted to adjust the pattern of the cylinder template, the entire doctor device is also adjusted. However, there is also the possibility of arranging the entire doctor device on the machine frame 3.
  • the storage of the support member 10 should be adjustable in height in any case. However, it must be a fixed bearing, since the carrier part must serve as a counter pressure bar, unless it is intended to cause the contact pressure.
  • Fig. 1 shows the active pressure via a pressure pad.
  • the medium can be fed via feed pipes 4, which are distributed laterally along the length of the feed part 12 and are assigned to the feed part 11.
  • the feed part 11 generally consists of a tube which carries the doctor part 12 in its lower region.
  • Fig. 1 the device is shown inserted in a cylinder template which is driven via drive wheels 120 and 121.
  • Fig. 2 shows the possibility of storing the carrier part 10 consisting of a rectangular profile in a bearing part provided with force-absorbing triangular supports.
  • This bearing part is mounted on a crossbar 22, which in turn rests on lateral bearings 23.
  • These bearings 23 can either be attached to the side bearing heads 20, 21 or directly on the machine frame.
  • the screws 24 allow the height adjustment of the crossbar 22 and thus of the support part 10.
  • a screwable closure 13 is provided around the bearing To close part 110. This can be swiveled in the direction of the arrows. When locked, it fixes the carrier part 10 in position. If pressure is to be exerted by the carrier part 10, the cross members 22 are set lower by tightening the screws 24.
  • FIG. 3 shows a plan view of a doctor device 1.
  • the carrier part 10 is shown in abbreviated form and has undercut guides 210 on its underside, in which a holding piece 14 is arranged in an axially displaceable manner and can be moved in the indicated arrow directions.
  • This holding piece 14 is in the form of a dovetail or in a T-shape in the guides 210 and is on its underside on a membrane 15 or the like. attached, which closes a pressure chamber 115, which is not shown in Fig. 3.
  • the membrane is held by a frame 215 and can bulge up in the middle.
  • the holding piece 14 is therefore shorter than the length of the membrane 15 or another elastic element.
  • a membrane e.g. a pressure pad can also be used.
  • the feed pipes for the feed member 11 are omitted for the sake of clarity.
  • the pressure line 315 for supplying the pressure medium to achieve a pressure cushion is only indicated with a control device 415, e.g. a pressure gauge and setting device 515, for example an adjustable valve.
  • the size ratios can be chosen differently. It is possible to have not only the carrier part 10, but also the feed part for the supply of the application medium protrude from the template, in which case the frame 215, the membrane 15 with the feed part 11 must be made correspondingly long. In this case, only the doctor part 12 is then as short as the application area is designed. in general, however, the entire unit which can be moved through the pressure chamber 115 is only drawn across the working width. With the pressure pad 115, the membrane serves as an elastic element 15. It can be any flat structure, designed as a hard rubber, plastic, sheet steel or spring sheet plate.
  • a square tube is shown as the carrier part 10. It can carry triangular supports 310 that support force over its entire length or only in some areas.
  • this carrier part 10 either extruded profiles provided with a U-profile are fastened or, as shown, a strip arrangement 410 for forming guides 210, in which the T-shaped head of the guide piece 14 engages and in which it can be moved longitudinally over the entire length of the carrier part is relocatable and therefore stationary.
  • the holding piece 14 is connected to the membrane 15 via a sealing plate 114, the sealing plate 114 and the holding piece 14 being screwed together in order to ensure a tight connection.
  • Other resilient parts can be used as the elastic element 15 in order to press on the unit 11, 12.
  • the membrane is clamped in a double frame 215 which is fastened to the feed part 11.
  • the feed part 11 is a square tube, and the medium can be fed in as desired.
  • the feed is shown via feed pipes 4, which are attached laterally and can be distributed over the entire length of the square tube of the feed part 11, while in Fig. 5 an end center feed is indicated as a possibility.
  • These feed pipes 4 bring the application medium into the interior 111 of the pipe-like feed part.
  • the medium can be transported via controllable and controllable pumps, controllable and controllable valves and a foam generator.
  • the paint emerges from a number of upper openings 411 in the tubular feed part 11 in the direction of arrow A, the openings being covered with a spray bar 511.
  • This spray bar forces an even flow of the working medium to the application area.
  • this passes into an ink or media pool 5, for example inside a cylindrical rotary stencil 2, in front of a doctor blade 112 of the doctor part 12.
  • the doctor blade is embedded in a possibly cage-like guide 212, which guides it over 180 ° reaches around, which has a stabilizing effect and which is continuously or partially wrapped around the preferably driven roller doctor blade 112.
  • the diaphragm 15 is an example of elastic spring elements 15 of any kind.
  • the space between the membrane 15 and the upper wall 211 of the feed part 11 is initially determined by the thickness of the lower frame strips 215 '. If, for example, compressed air or another pressure medium is introduced into the pressure chamber 115 via the pressure line 315 via corresponding openings 615 in the lower frame strip 215 ', the membrane bulges upwards or the membrane wants to bulge upwards. This cannot be achieved because the carrier part 10 is fixed and cannot move upwards. It acts as a counter pressure bar and also as a squeegee mounting bracket. As a result, the wall 211 is displaced by the pressure and the entire unit with the squeegee part is pressed against the application line and thus, in the exemplary embodiment shown, against the inner surface of the stencil and thus against the product 7. Since the pressure can be controlled and preferably regulated, the pressure in the area of the application line is variable. It can adapt to the different material of the goods 7 and can also be adjusted during work.
  • FIG. 5 shows a device very similar to that in FIG. 4. Only the feed of the application medium is chosen somewhat differently in order to show a different embodiment.
  • the doctor part 12 is equipped with an elastic doctor blade. This is only to be understood symbolically; Any other type of doctor blade made of a different material can be used here.
  • the T-shaped lip system which can be inserted into a holder 312 ', is advantageous.
  • a fastening part 412 gives the necessary distance to the feed part 11.
  • the printing medium is in a pool of ink 5 in front of the doctor blade.
  • a cylindrical screen template 2 provided with a rotary drive is shown as an application example.
  • FIGS. 6 and 7 slot doctor blade designs are shown.
  • the superstructure, consisting of carrier part 10, frame 215 with membrane 15, holding piece 14 and sealing plate 114 is the same as that described in detail in relation to FIGS. 4 and 5.
  • the lower area consists of the feed part 11 with feed tubes 4, the feed part 11 in the embodiment of FIG. 6 being provided with diverging side walls and in the embodiment, for example FIG. 7, consisting of a round tube.
  • blade part 12 adapted to the application area which is designed as a slot doctor blade with an application slot 512 which is delimited at the ends, but preferably extends over the entire length of the device.
  • an order slot 512 in the lower region, but rather an arbitrary number of order openings 512 ′, which are placed close to one another, for example.
  • These can be designed in the manner of bores.
  • the squeegee part 12 follows the shape of the cylindrical template 2, thus lies sealingly, namely over the entire working width.
  • Terminal boundary walls each close off the interior 111 and are designated 8 in the drawing. They can also serve as stabilizing agents for the overall construction.
  • FIGS. 6 and 7 are advantageous for the use of foamed media, since there is a large feed part 11, which also serves as a storage device, so that there is always enough foamed material available for the application.
  • the feed pipes 4 are also cut obliquely upwards in order to evenly fill the entire space with foamed medium. They protrude into the tubular feed parts 11.
  • FIG. 6 is also particularly advantageous for the supply of foam, wherein the side walls 311 are smooth, extend over the entire working width, stand diverging from one another and enter the application gap 512, which also diverges in its side walls, without edges, corners or. the like face the foam with an obstacle.
  • FIGS. 6 and 7 The principle of operation of these devices, shown in FIGS. 6 and 7, is the same as that described for FIG. 4.
  • the carrier part 10 and also the holding piece 14 with its guidance on the carrier part 10 are formed in the same way in both exemplary embodiments as in the aforementioned examples. Only the elastic element in these embodiments is not designed as a pressure chamber 115 with a membrane 15, they are passive springs.
  • a bridge-like holder 9 is attached to the holding piece 14, each of which carries a spring strut at its two ends, which is guided through a respective counter bearing 611, which is attached to the outside of the feed part 11.
  • the springs 715 are supported on height-adjustable sleeves 90. Grub screws 91 secure the height adjustment of the sleeves 90.
  • the strut-like supports 92 lie opposite each other in pairs. A number of such strut-like supports 92 can be arranged in the direction of the working length.
  • the design of the feed part and the doctor part 12, the design of the feed pipes 4 are only given in this form as an example and can be changed, as the other exemplary embodiments show.
  • the doctor blade part 12 adapts to a cylinder template 2 in the exemplary embodiment shown, which is also only intended as an exemplary embodiment. If a rotating screen belt is arranged, the doctor part 2, which can also be called a doctor shoe, will have a different shape than shown.
  • the holder 9 is in turn fastened to the holding piece 14 and lies in a bridge-like manner above the tubular feed part 11.
  • Consoles serve as counter bearings 611 and the elastic spring elements 15 are resilient plates standing made of rubber-elastic material, made of plastic or steel.
  • the holder 9 or the carrier is U-shaped and engages in counter bearings, which are also U-shaped, in which the elastic or resilient elements 15 are clamped. There is the possibility in this area of normal pressure springs, rubber buffers or the like. to use.
  • brackets 9 or supports 9 it is possible to provide a number of brackets 9 or supports 9 and also to distribute a corresponding number of elastic spring elements 15 over the total working width. Uniform pressure forces should be able to be absorbed. The change in the pressure takes place through the height adjustment of the carrier part 10, which has already been described.
  • a closed system consisting of a tubular feed part 11 and a doctor part 12 arranged on it and designed as a slotted doctor blade can be adjusted to the application surface under elastic pressure.
  • the holding piece 14 can be moved over the entire length of the carrier 10 and there is the possibility of replacing the entire unit in a few minutes, for example in order to change from a doctor blade 112 to a doctor blade 312 or to use a slot doctor blade.
  • the individual doctor blade shapes shown in FIGS. 4 to 7 and also other doctor blade shapes can be stored in any machine and used optionally without lengthy assembly work. For assembly, only the carrier part 10 is removed from its bearing parts 110, which are shown in FIG. 2, but possibly also detached from the bearings 23 of the side bearing heads with the cross members 22 and the entire unit is pulled out of the template.
  • the entire device can be reinserted in a few simple steps and the carrier part 10 can be fastened in the bearing part 110 by means of a closure 13.
  • the carrier part must have the opposing forces, e.g. the membrane or the pressure chamber 115.
  • the total unit that is moved is preferably in the range of the working width.
  • the membrane 15 is designed to be relatively thick, e.g. Made of elastic material and should have a thickness that exceeds 5 mm.
  • a dovetail or another guide can also be used.
  • the doctor device can be designed differently.
  • a doctor blade can be driven or not driven, it can be in a cage or in a continuous guide 212.
  • the device can apply any medium in liquid, pasty or foamed form with a wide variety of chemicals. It is essentially intended for the application of paint or for dyes or dye liquors. However, other media can also be applied, e.g. Equipment chemicals.
  • the goods can be treated, coated, colored, printed.
  • the medium can be applied directly to the goods or through a template, through a sieve or the like.
  • the screens or stencils can be patterned or unpatterned.
  • webs with a fibrous structure such as textiles of all kinds, including carpets, pile goods, such as velvet, nonwovens or felts, but also paper, plastic and also any other material that also works, for example, as non-absorbent, are suitable as substrates.
  • pile goods such as velvet, nonwovens or felts
  • paper, plastic and also any other material that also works, for example, as non-absorbent are suitable as substrates.
  • thought of webs but it can also be piece goods, plates, sheets or the like. be treated like this.
  • this device By designing this device according to the invention, it is possible to work with one or the same device, for example in screen printing, with a wide variety of materials, wherein the unit in question can be easily replaced with different doctor blade parts 12 depending on the medium to be applied and the substrate present.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Screen Printers (AREA)
EP83104583A 1982-05-13 1983-05-10 Racle pour une installation d'impression ou de teinture de matières en bandes Withdrawn EP0095084A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823218071 DE3218071A1 (de) 1982-05-13 1982-05-13 Rakelvorrichtung fuer eine einrichtung zum bedrucken oder faerben von warenbahnen
DE3218071 1982-05-13

Publications (1)

Publication Number Publication Date
EP0095084A1 true EP0095084A1 (fr) 1983-11-30

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Family Applications (1)

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EP83104583A Withdrawn EP0095084A1 (fr) 1982-05-13 1983-05-10 Racle pour une installation d'impression ou de teinture de matières en bandes

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EP (1) EP0095084A1 (fr)
DE (1) DE3218071A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2281251A (en) * 1993-08-27 1995-03-01 Minami Engineering Co Ltd Squeegee apparatus for screen printing machine
WO2002007900A1 (fr) 2000-07-19 2002-01-31 Peter Zimmer Keg Dispositif d'application de colorant sur une nappe de tissu

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29621878U1 (de) * 1996-12-17 1997-02-13 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Reinigungsvorrichtung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2093509A5 (fr) * 1970-05-15 1972-01-28 Ichinose Shirou
DE2365622A1 (de) * 1972-12-21 1975-09-11 Zimmer Peter Rakelvorrichtung fuer eine einrichtung zum bedrucken von warenbahnen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2093509A5 (fr) * 1970-05-15 1972-01-28 Ichinose Shirou
DE2365622A1 (de) * 1972-12-21 1975-09-11 Zimmer Peter Rakelvorrichtung fuer eine einrichtung zum bedrucken von warenbahnen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2281251A (en) * 1993-08-27 1995-03-01 Minami Engineering Co Ltd Squeegee apparatus for screen printing machine
GB2281251B (en) * 1993-08-27 1996-11-06 Minami Engineering Co Ltd Squeegee apparatus for screen printing machine
WO2002007900A1 (fr) 2000-07-19 2002-01-31 Peter Zimmer Keg Dispositif d'application de colorant sur une nappe de tissu
AT410182B (de) * 2000-07-19 2003-02-25 Peter Zimmer Keg Einrichtung zum aufbringen von farbe auf eine warenbahn

Also Published As

Publication number Publication date
DE3218071A1 (de) 1983-11-17

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