EP0453988A1 - Dispositif d'impression de sérigraphie avec une mobile plaque de table - Google Patents

Dispositif d'impression de sérigraphie avec une mobile plaque de table Download PDF

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Publication number
EP0453988A1
EP0453988A1 EP91106317A EP91106317A EP0453988A1 EP 0453988 A1 EP0453988 A1 EP 0453988A1 EP 91106317 A EP91106317 A EP 91106317A EP 91106317 A EP91106317 A EP 91106317A EP 0453988 A1 EP0453988 A1 EP 0453988A1
Authority
EP
European Patent Office
Prior art keywords
table top
screen printing
printing device
grippers
screen
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Withdrawn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
EP91106317A
Other languages
German (de)
English (en)
Inventor
Uwe Richter
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.)
SPS- SIEBDRUCKMASCHINEN GmbH
Original Assignee
SPS- SIEBDRUCKMASCHINEN GmbH
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 SPS- SIEBDRUCKMASCHINEN GmbH filed Critical SPS- SIEBDRUCKMASCHINEN GmbH
Publication of EP0453988A1 publication Critical patent/EP0453988A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/0804—Machines for printing sheets
    • B41F15/0813—Machines for printing sheets with flat screens
    • B41F15/0818—Machines for printing sheets with flat screens with a stationary screen and a moving squeegee
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/16—Printing tables
    • B41F15/18—Supports for workpieces
    • B41F15/22—Supports for workpieces for single sheets

Definitions

  • the invention relates to an automatically operating flatbed screen printing device with a movable table top and a fixed screen and with a belt delivery.
  • the printer places the printing material in sheet form on the extended table top. Pins determine the correct position of the sheet. Suction air fixes the printed sheet on the suction field of the printing table. Then the table top moves into an exact end position in the machine under the printing frame or printing form. The squeegee movement is carried out. Then the gripper, which is fixed to the frame, grips the printed sheet in the area of its front edge and holds it in the machine, while the table top moves back to the outside position without a vacuum system. The printer creates the next sheet to be printed, while the sheet already printed is placed on a delivery belt and transported out of the machine.
  • the object of the invention is to provide a sheet system with simple means with a proven design, with which the intermediate time described can be bridged.
  • the screen printing device has a stable upper frame 1 resting on a frame 4, in which the most important functional parts of the machine are arranged and housed (not shown), e.g. the squeegee device 2, which can be moved in the double arrow direction 3, with the pre-squeegee 5 and the printing squeegee 6, which operate the printing form arranged below them, the screen 7.
  • the table top 9 (FIG. 4) is located under the screen 7 during the printing process and can be extended in the direction of the arrow 11 to the inlet side 12 of the machine in order to take over a printing sheet 10 (FIG. 1). After taking over the printing sheet 10, the table top 9 moves back into its printing position in the direction of arrow 13 (FIG. 4). In the time during which the table top 9 moves into the take-over position, takes over the printing sheet and returns to the printing position, the screen 7 is flooded; the squeegee touches the screen 7, the squeegee 6 is lifted off the screen (Fig. 1). If the table top 9 with the printing sheet 10 is located under the screen 7, the printing squeegee 6 is placed on the screen 7 (the pre-squeegee 5 is lifted off) and carries out the printing process (FIG. 4).
  • a number of spring-loaded grippers 14 known in the art which are known per se and are arranged laterally next to one another and are provided beneath the sieve 7 in the table top plane and belong to a delivery device 15 which has an extension belt 16 arranged below the table top 9.
  • the grippers 14 - viewed from the side - can be moved on a square guideway, so that they can automatically be moved back, from the plane of the table top up, then forward over the edge of the sheet and then down to grasp the sheet.
  • recesses 17 are provided in the table top 9, so that the table top 9 can receive the grippers 14 approximately in a form-fitting manner (FIG. 5).
  • the sheet remains under the sieve 7 and falls in the direction of arrow 18 after being released by the grippers 14 onto the delivery belt 16 and is discharged from the delivery belt 16 in the direction of arrow 19 (FIG. 6 , 7).
  • the screen printing device corresponds to a so-called flat bed screen printing machine known per se.
  • a pre-application device 20 is provided above the table top 9 at the landing point in front of the inlet side 12, which advantageously has a fixed, thin application plate 21, which ends in a wedge-shaped manner on the inlet side 22 and under which the table top 9 is located when the table top is located has moved into the sheet transfer position (Fig. 1).
  • a hold-down plate 23 Arranged above the contact area 22 is a hold-down plate 23, which on the front edge has side-by-side, forwardly projecting stop webs 24, the front free end area of which is bent down approximately at right angles as stop lugs 25 and is located in the area of the front edge 26 of the contact plate 21.
  • a print sheet 10 is placed on the feed plate 21 by hand or with suitable, automatically working feeders and its front edge is pushed against the stop lugs 25 while the printing process is carried out in the printing device (FIG. 1). In this advance position, the printed sheet 10 waits for the take-over by the table top 9.
  • sheet grippers 27 are arranged, which are expediently designed like the grippers 14 known per se and can also be displaced on an approximately square or semicircular guideway. In the starting position they are on the table level (Fig. 1). They grip on the roughly rectangular or semicircular guideway.
  • the arrangement of the stop webs 24 and the gripper 27 is such that the grippers are located laterally next to the stop webs 24 when the table top 9 has moved into the take-over position (FIGS. 1, 2, 3).
  • the recesses 17 of the table top 9 are arranged at locations that are not covered by the stop webs 24.
  • 9 register stops 28 are arranged on the table top in addition to the take-over grippers 27.
  • the table top 9 moves under the contact plate 21.
  • the take-over grippers 27 are open; the register stops 28 abut the leading edge of the printed sheet; the take-over grippers 27 grip the sheet in register and the hold-down plate 23, which can be pivoted in the double arrow direction 29, pivots upward, so that the stop lugs 25 release the leading edge of the printed sheet.
  • the table top 9 charged with suction air moves into the printing position, taking the printing sheet 10 with it.
  • the printing process is carried out while the feeder 20 is being loaded with a next printed sheet.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)
EP91106317A 1990-04-26 1991-04-19 Dispositif d'impression de sérigraphie avec une mobile plaque de table Withdrawn EP0453988A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9004738U DE9004738U1 (de) 1990-04-26 1990-04-26 Siebdruckvorrichtung mit beweglicher Tischplatte
DE9004738U 1990-04-26

Publications (1)

Publication Number Publication Date
EP0453988A1 true EP0453988A1 (fr) 1991-10-30

Family

ID=6853237

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91106317A Withdrawn EP0453988A1 (fr) 1990-04-26 1991-04-19 Dispositif d'impression de sérigraphie avec une mobile plaque de table

Country Status (2)

Country Link
EP (1) EP0453988A1 (fr)
DE (1) DE9004738U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0578551B1 (fr) * 1992-07-07 1997-10-01 SILIUM Société française à responsabilité limitée Perfectionnements aux machines d'impression, notamment aux machines de sérigraphie
EP1068953A1 (fr) * 1999-06-18 2001-01-17 LOSI, Bruno Procédé d'impression par sérigraphie et machine pour la mise en oeuvre du procédé

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1568343A (en) * 1978-01-18 1980-05-29 Svecia Silkscreen Maskiner Ab Printing machine
EP0179010A1 (fr) * 1984-10-04 1986-04-23 Dany Freminet Dispositif de marge automatique pour machine à imprimer en sérigraphie à plateau sortant
US4848226A (en) * 1982-01-19 1989-07-18 Ake Svantesson Material gripping arrangement for stencil printing machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE960357C (de) * 1954-11-14 1957-03-21 Habil Wilhelm Christian Hauck Siebdruck-Maschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1568343A (en) * 1978-01-18 1980-05-29 Svecia Silkscreen Maskiner Ab Printing machine
US4848226A (en) * 1982-01-19 1989-07-18 Ake Svantesson Material gripping arrangement for stencil printing machine
EP0179010A1 (fr) * 1984-10-04 1986-04-23 Dany Freminet Dispositif de marge automatique pour machine à imprimer en sérigraphie à plateau sortant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0578551B1 (fr) * 1992-07-07 1997-10-01 SILIUM Société française à responsabilité limitée Perfectionnements aux machines d'impression, notamment aux machines de sérigraphie
EP1068953A1 (fr) * 1999-06-18 2001-01-17 LOSI, Bruno Procédé d'impression par sérigraphie et machine pour la mise en oeuvre du procédé

Also Published As

Publication number Publication date
DE9004738U1 (de) 1991-08-29

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

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Designated state(s): DE ES FR GB IT NL SE

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Effective date: 19920430

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Withdrawal date: 19930722