EP0056630B1 - Machine rotative de sérigraphie - Google Patents

Machine rotative de sérigraphie Download PDF

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Publication number
EP0056630B1
EP0056630B1 EP82100259A EP82100259A EP0056630B1 EP 0056630 B1 EP0056630 B1 EP 0056630B1 EP 82100259 A EP82100259 A EP 82100259A EP 82100259 A EP82100259 A EP 82100259A EP 0056630 B1 EP0056630 B1 EP 0056630B1
Authority
EP
European Patent Office
Prior art keywords
pipe
screen
ink
aspiration
printing press
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP82100259A
Other languages
German (de)
English (en)
Other versions
EP0056630A1 (fr
Inventor
Wouter C. Van Ouwerkerk
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.)
Kleinewefers Jaeggli AG
Original Assignee
Kleinewefers Jaeggli AG
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=6123018&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0056630(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kleinewefers Jaeggli AG filed Critical Kleinewefers Jaeggli AG
Priority to AT82100259T priority Critical patent/ATE9883T1/de
Publication of EP0056630A1 publication Critical patent/EP0056630A1/fr
Application granted granted Critical
Publication of EP0056630B1 publication Critical patent/EP0056630B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/003—Cleaning arrangements or devices for screen printers or parts thereof
    • B41F35/004—Cleaning arrangements or devices for screen printers or parts thereof for cylindrical screens
    • 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

Definitions

  • the invention relates to rotary screen printing devices of the type mentioned in the preamble of main claim 1 and dependent claim 2.
  • DE-A-2 638 344 which defines the preamble of independent claims 1 and 2, discloses a vertical rotary screen printing machine which has the features of the preamble of the main claim.
  • the ink supply and suction tube is arranged in the vicinity of the doctor blade in the horizontal plane of the circular stencil and at a distance therefrom such that the ink first reaches an overflow in which the ink flowing from the tube via metering channels is collected to form an ink cushion and then via the length of the template is distributed to this.
  • the rotary screen printing machine provides a vertical guidance of the material web between two round screens located at the same height, the ink collecting in a sump in each round screen. Excess paint from the sump can be sucked out of the sump through a suction pipe.
  • - One squeegee inside each circular template is provided in its horizontal center plane.
  • DE-C-579480 relates to a machine for printing on running webs of material with a web guide over a stencil drum and spray nozzles inside the drum, the horizontally directed spray device for applying the paint on the paper stencil wound on the drum opposite a suction box to the color through the stencil to suck on the textile.
  • a suction device is provided below the section of the inside of the stencil on which the paint spray jet strikes. The stencil or drum is washed from the outside of the drum by spraying with washing water.
  • a rotary screen printing machine is also known in which the squeegees are pivotally mounted such that the doctor blade can be brought into any other angular position on the inner circumference of the screen stencil in addition to the known vertically downward position.
  • This adjustability of the doctor blade is provided in order to prevent the ink from passing through the doctor blade through the perforations of the circular stencil upon completion of the printing process and thus to prevent the web or at least the printing blanket or the impression roller from becoming dirty.
  • the object of the invention is to reduce ink fluid losses when changing colors, i. H. reduce and recover the amount of paint liquid to be removed from the stencil.
  • an undesired passage of the color liquid through the stencil should be avoided when the round stencil is at a standstill.
  • the use of cleaning fluid is intended to enable the color change to be carried out without removing the circular template and without losing color, thereby avoiding the damage to the sensitive circular template that occurs. This color change should be able to be carried out in a shorter time and without a great deal of work, which is particularly important in the case of small batches.
  • the advantage of the device according to the invention lies in the fact that the inside of the sensitive circular stencil is freed of color without a significant amount of color remaining in the stencil and this is recovered largely completely undiluted. The remaining residue can be removed quickly and easily when using cleaning liquid. When the stencil is at a standstill, the ink is almost completely sucked away to prevent the ink from accidentally running through the stencil. -
  • the device can be used for border printing with particular advantage. The squeegee ensures that the paint is stripped off on the inside of the stencil between the rows of holes provided for the border.
  • This excess paint is either sucked off from the suction tube in the central plane of the stencil with further supply of paint for the borders through the suction tube arranged in the vertical plane of the stencil, or the excess color between the border holes of the stencil runs deep into the stencil and is distributed there with the help of color flowing from the feed pipe in the vertical plane over the length of the template. If an excess of paint has accumulated here, it is removed by switching the feed pump to the suction of the delivery and suction pipe.
  • the suction openings of the inside of the drum can be more or less approached and the suction effect can be changed very precisely as desired.
  • the middle section 16 of this guide tube lies at the lowest point of the round template 1, preferably directly on the inside of the round template.
  • the pipe 15 is radially adjustable with its section 16 in the direction of the double arrow 17 in the circular template 1, so that the position of the section 16 of the guide tube 15 can be adapted to the circular template.
  • a squeegee 18 with the squeegee bar 12 and a squeegee knife 19 projects into the interior 21 of the circular stencil 1, the squeegee or squeegee knife being located in the horizontal central plane and thus offset by approximately 90 ° to section 16 of the ink guide tube 15.
  • the doctor blade can be adjusted horizontally in the direction of the double arrow 20. - In the embodiment according to FIG. 3, the doctor blade 22 is adjustably arranged on a bar 23.
  • the section 16 of the paint guide tube 15 has in its lower section holes 24 distributed over the length of the tube, which are directed in the direction of rotation - arrow K in FIG. 4 - of the round template 1 (cf. bore center line 25) and behind in the direction of rotation of the template the vertical center line M of the pipe section 16 are located.
  • the tube 15 can be rotated about its axis A.
  • the guide tube 15 is connected both to a paint feed pump and to a suction pump or to a combined unit, so that the pipe 15 can optionally be supplied with paint in a known manner, but excess paint can also be drawn off through the holes 24.
  • the ink initially retained by the doctor knife 19 or 22 runs down the stencil section 1a and accumulates in the direction of rotation in front of the pipe section 16 of the pipe 15 with its bores 24.
  • the onset of suction ensures that the ink flowing into the holes 24 is sucked off, so that on the one hand this results in a recovery of the paint to the feed pipe 15, and on the other hand the section 1a of the circular stencil is largely freed of paint and penetration of the paint to the material web is excluded.
  • the section 16 of the ink supply and suction pipe 15 can be pivoted about the longitudinal central axis L (FIG. 1) of the circular template.
  • a collecting trough 27 Arranged underneath the circular template 1 is a collecting trough 27, into which the washing liquid, which is introduced into the interior of the template via line 16, with a remainder of paint that has not been sucked off through the pipe 15, and via a nozzle 28 with a hose 29 can be deducted.
  • the tub 27, into which excess ink can drip even during the printing process, is height-adjustable in the direction of the arrows 30 and carries seals 31 resting against the stencil at its edge. Without deforming the stencil 1, a slight negative pressure can be present in the tub 27 are generated to draw off washing liquid from the interior of the template.
  • the paint feed and suction pipe is divided into a feed pipe and a suction pipe separate therefrom. While the first mentioned in the distance from the inner template z. B. can be arranged in the 11th circular quadrant (FIG. 4), the suction pipe is designed and arranged like the pipe 15 with the section 16. It can be rotated and swiveled about the longitudinal axis of the template. The washing liquid can be brought into the interior of the template via one of the two pipes.
  • the doctor blade 22 has an angle of attack a with respect to the vertical of less than 45 °, preferably 10-30 °. Furthermore, the doctor blade is designed in a known manner as a spring element and bears on the inside of the template 1 with a greater or lesser prestress. This small angle of attack of the doctor blade, the color in the gusset between doctor blade 22 and stencil 1 ge leads and pressed due to the acute-angled wedge surface of the doctor knife through the template, without the need for gravity.
  • the vertical arrangement of the stencils 1 and the impressioners 2 allows an apron or curtain 42 to be brought between the impressioners 2 or between the web 3 and the stencils 1 during the color change and washing process of the stencils 1, which can be raised and lowered.
  • the paint supply and suction pipe 15 of this pipe and, if the supply pipe and the suction pipe of one of these two pipes are designed separately, it can be connected to a washing liquid supply line, there is the great advantage of being able to wash the stencil in the installed state in addition to the advantage of recovering excess paint.
  • the pipe 15 takes over the function of supplying paint, suctioning off excess paint and supplying rinsing and washing water. The same applies correspondingly when using a separate paint feed pipe and a paint suction pipe.
  • the washing liquid can also be passed through a separate pipe into the interior, which preferably has spray nozzles directed towards the template.
  • the doctor bar can also be designed as a tube which supplies washing liquid or can carry such a tube.
  • a doctor bar 23 is again provided with a doctor knife 22 located approximately in the horizontal, whose angle of attack against the inner wall of the template rotating in the direction of arrow I is less than 45 °.
  • a suction pipe 31 is arranged just before the doctor blade 22, which leaves a small space 32 between it and the inner wall of the stencil.
  • the tube 31 has an indentation 33 opposite the angle a between the doctor blade 22 and the template, in the middle of which a longitudinal slot or row of holes 34 is provided.
  • the ink supply pipe 15a is arranged, the outlet slot or row of holes 35 is arranged in an indentation 36 of the tube.
  • a trough corresponding to the trough 27 of FIG. 3 can also be provided below the template 1.
  • the design of the device according to FIG. 5 offers the possibility of supplying the washing liquid through the suction pipe 31 after the ink 37 which has accumulated in front of the doctor blade has been sucked up, for which purpose this pipe can be connected to a paint suction unit and to a line supplying washing liquid. Either the washing liquid can be sucked off through the template 1 at the level of the tub or the pipe 15a serves as a suction element for the washing liquid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Claims (11)

1. Machine rotative de sérigraphie comportant au moins un pochoir cylindrique (1), une raclette (22) et un conduit (15) amenant ou évacuant l'encre à la partie inférieure du côté intérieur du pochoir (1) sur toute sa largeur, machine dont la bande de tissu (3), est guidée de façon inclinée ou verticale et dont la raclette (22) est placée dans le plan médian horizontal du pochoir (1) derrière la conduite (15) de l'encre dans le sens de rotation (K) qui peut être reliée à une pompe d'alimentation ou d'aspiration d'encre, caractérisée en ce que la conduite d'encre (15) est décalée d'environ 90° par rapport à la raclette (22) dans le sens contraire de la rotation (K) et placée directement au-dessus du côté intérieur du pochoir avec ses ouvertures de sortie (24) réparties sur la longueur de la conduite.
2. Machine rotative de sérigraphie comportant au moins un pochoir cylindrique (1), une raclette (22) et un conduit (15) amenant ou évacuant l'encre à la partie inférieure du côté intérieur du pochoir (1) sur toute sa largeur, machine dont la bande de tissu (3) est guidée de façon inclinée ou verticale et dont la raclette (22) est placée dans le plan médian horizontal du pochoir (1) derrière la conduite (15) de l'encre dans le sens de rotation (F), caractérisée en ce que la conduite d'amenée d'encre (15a) est placée approximativement dans le plan médian vertical du pochoir (1) et une conduite d'aspiration (39) se trouvant juste devant la raclette (22) à une petite distance du côté intérieur du pochoir.
3. Machine rotative de sérigraphie selon l'une des revendications 1 ou 2, caractérisée en ce que la conduite d'amenée et d'aspiration (15), ou la conduite d'amenée (15a) et la conduite d'aspiration (39), présente, dans le sens de rotation du pochoir cylindrique, un alésage d'aspiration (24, 34) et de sortie (24, 35) incliné par rapport à la verticale, alésage qui est situé derrière le plan médian (M) de la conduite dans le sens de rotation (K) du pochoir (1).
4. Machine rotative de sérigraphie selon l'une des revendications 1 ou 2, caractérisée en ce que la conduite d'amenée et d'aspiration d'encre (15) ou la conduite d'amenée (15a) et la conduite d'aspiration (39) peuvent être tournées autour de leur axe longitudinal.
5. Machine rotative de sérigraphie selon l'une des revendications 1 ou 2, caractérisée en ce que la conduite d'amenée et d'aspiration d'encre (15) ou la conduite d'amenée (15a) et la conduite d'aspiration (39) peuvent être pivotées autour de l'axe longitudinal (L) du pochoir cylindrique (1).
6. Machine rotative de sérigraphie selon la revendication 1 ou 2, caractérisée en ce que la conduite d'amenée et d'aspiration (15) ou la conduite d'amenée (15a) ou la conduite d'aspiration (39) pouvant être reliées à une pompe d'alimentation et d'aspiration sont reliées à une conduite d'amenée d'eau de rinçage.
7. Machine rotative de sérigraphie selon la revendication 1 ou 2, caractérisée par une conduite séparée amenant du liquide de lavage à l'intérieur du pochoir.
8. Machine rotative de sérigraphie selon la revendication 1 ou 2, caractérisée en ce que la conduite amenant le liquide de lavage est placée sur la barre racleuse (12).
9. Machine rotative de sérigraphie selon la revendication 6, caractérisée en ce qu'un tablier ou rideau de protection amovible (42) ou analogue peut être levé et abaissé entre le pochoir (1) et le presseur (2) situé à la même hauteur ou le pochoir et la bande en matière textile appliquée au presseur.
10. Machine rotative de sérigraphie selon les revendications 1 ou 2 et 8, caractérisée en ce que la conduite d'amenée d'encre (15a) peut être reliée à une conduite évacuant un liquide de lavage (fig. 5).
11. Machine rotative de sérigraphie selon la revendication 2, caractérisée en ce que la conduite d'aspiration d'encre 39, placée juste avant le couteau racleur (22) dans le sens de rotation (F) du pochoir (1), peut être reliée à une conduite amenant un liquide de lavage.
EP82100259A 1981-01-21 1982-01-15 Machine rotative de sérigraphie Expired EP0056630B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82100259T ATE9883T1 (de) 1981-01-21 1982-01-15 Rotationssiebdruckvorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3101766A DE3101766C1 (de) 1981-01-21 1981-01-21 Rotationssiebdruckvorrichtung
DE3101766 1981-01-21

Publications (2)

Publication Number Publication Date
EP0056630A1 EP0056630A1 (fr) 1982-07-28
EP0056630B1 true EP0056630B1 (fr) 1984-10-17

Family

ID=6123018

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82100259A Expired EP0056630B1 (fr) 1981-01-21 1982-01-15 Machine rotative de sérigraphie

Country Status (4)

Country Link
US (1) US4436032A (fr)
EP (1) EP0056630B1 (fr)
AT (1) ATE9883T1 (fr)
DE (1) DE3101766C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105620036A (zh) * 2016-03-09 2016-06-01 苏州华策纺织科技有限公司 一种圆网印花机的除尘装置

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EP0583076B1 (fr) * 1992-07-16 1996-10-16 Riso Kagaku Corporation Dispositif d'impression par stencil
BR9505844A (pt) * 1994-02-12 1996-02-13 Johannes Zimmer Dispositivo autolimpante para a aplicação de uma substância sobre uma seção de têxtil
BR9506778A (pt) * 1994-02-12 1997-10-14 Johannes Zimmer Processo e equipamento para a limpeza de um dispositivo de aplicação
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DE19806040A1 (de) * 1998-02-13 1999-09-09 Stork Mbk Gmbh Vorrichtung und Verfahren zum Aufbringen eines Mediums auf ein Substrat und System mit mehreren solchen Vorrichtungen
JPH11321063A (ja) * 1998-03-20 1999-11-24 Tohoku Ricoh Co Ltd 孔版印刷装置
US6196126B1 (en) 1999-01-12 2001-03-06 Intex Corporation Method and apparatus for preventing pigment buildup during a rotary screen printing process
JP4365479B2 (ja) * 1999-05-18 2009-11-18 東北リコー株式会社 孔版印刷装置
US6681691B2 (en) 2000-03-02 2004-01-27 Autotype International Limited Screen printing stencil production
ITMO20040222A1 (it) * 2004-09-03 2004-12-03 Giorgio Berselli Macchina per la serigrafia ad umido di elementi sostanzialmente piani particolaremente manufatti ceramici.
US8029191B2 (en) * 2006-10-11 2011-10-04 Illinois Tool Works Inc. System and method for controlling temperature indicators
US8070358B2 (en) * 2006-10-11 2011-12-06 Illinois Tool Works Inc. System and method for controlling temperature indicators
JP5069896B2 (ja) * 2006-10-23 2012-11-07 株式会社小森コーポレーション 液体供給装置
US7618184B2 (en) * 2006-11-03 2009-11-17 Illinois Tool Works System and method for multiple-temperature indicator stick
EP2689930B2 (fr) * 2012-07-23 2020-03-18 Komori Corporation Dispositif d'alimentation en liquide
CN109130463B (zh) * 2017-06-28 2019-09-13 长胜纺织科技发展(上海)有限公司 立式双面圆网转移印花装置

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105620036A (zh) * 2016-03-09 2016-06-01 苏州华策纺织科技有限公司 一种圆网印花机的除尘装置

Also Published As

Publication number Publication date
ATE9883T1 (de) 1984-11-15
US4436032A (en) 1984-03-13
EP0056630A1 (fr) 1982-07-28
DE3101766C1 (de) 1982-09-09

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