EP0426014A2 - Dispositif d'application d'une substance sur une bande de matériau - Google Patents

Dispositif d'application d'une substance sur une bande de matériau Download PDF

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Publication number
EP0426014A2
EP0426014A2 EP90120525A EP90120525A EP0426014A2 EP 0426014 A2 EP0426014 A2 EP 0426014A2 EP 90120525 A EP90120525 A EP 90120525A EP 90120525 A EP90120525 A EP 90120525A EP 0426014 A2 EP0426014 A2 EP 0426014A2
Authority
EP
European Patent Office
Prior art keywords
doctor
doctor blade
pin
end plates
roller
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
EP90120525A
Other languages
German (de)
English (en)
Other versions
EP0426014A3 (en
EP0426014B1 (fr
Inventor
Johannes Zimmer
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
Priority claimed from DE8912899U external-priority patent/DE8912899U1/de
Priority claimed from DE9003129U external-priority patent/DE9003129U1/de
Application filed by Individual filed Critical Individual
Publication of EP0426014A2 publication Critical patent/EP0426014A2/fr
Publication of EP0426014A3 publication Critical patent/EP0426014A3/de
Application granted granted Critical
Publication of EP0426014B1 publication Critical patent/EP0426014B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B41F15/14—Details
    • B41F15/40—Inking units
    • B41F15/42—Inking units comprising squeegees or doctors

Definitions

  • the invention relates to a device for applying a substance to a material web by means of a magnetically pressed doctor blade, wherein a supporting beam parallel to the doctor blade carries axial delimiting parts for the doctor blade in the form of end plates extending normal to the supporting beam.
  • the advantage of the magnetic pressure of doctor blades is above all that the pressure force of the doctor blade does not have to be introduced into the latter via lateral bearings, so that the doctor blade does not deflect. Nevertheless, limiting parts for their movement make sense even when the doctor is pressed magnetically.
  • Lateral end plates which usually serve at the same time to delimit the ink sump, can cooperate, for example, with a magnetically pressed doctor blade by placing a doctor blade roller exactly normal to the web direction by means of inclined surfaces.
  • the squeegee rollers can be loosely guided in end plates arranged on the side of the support bar, so that they can be easily removed from the template after the application process has ended.
  • Thin rollers are guided directly in a hole in the end plates that is open at the bottom, thicker rollers are provided with side journals, which are undercut by the end plates.
  • magnetically pressed doctor blades can also be guided in vertical guide grooves of the end plates, with either the cross section of the doctor blade as such fitting into the guide groove or the doctor blade being provided with lateral guide pins.
  • the variety of possible end plates is further increased by the fact that these can optionally also be magnetically attracted or displaceable in the vertical direction.
  • EP-A-297 528 and EP-A-297 529 A disadvantage of the current situation described for example by EP-A-297 528 and EP-A-297 529 is that the change in the doctor blade diameter or the doctor blade type required for technical reasons often also requires a change in the end plates. Since the end plates are releasably, if at all, releasably connected to the support bars, this means that different support bars with corresponding delimiting parts have to be kept in stock for different types of doctor blades.
  • the invention is based on the consideration that substantial savings can be achieved if different end plates are assigned to a support bar (which usually also contains the ink supply). When changing the doctor blade diameter or the doctor blade type and the end plates, only the doctor blade and the end plates would then have to be replaced.
  • connection between the support beam and the end plate can be released by actuating a handle.
  • the application of the invention is particularly advantageous for doctor blades with doctor rollers which are pin-shaped at the ends and are connected to the end plates in such a way that the doctor roller does not have any of the possible spatial arrangements of the doctor apparatus, that is to say neither in the installed state nor when or dismantling or transport, can be involuntarily separated from the support beam.
  • the pin-shaped end of the roller doctor engages in a cage adjoining the end plate and is held in this by a cage cover, which in turn is held in place by a plug pin on the End plate is secured.
  • the interchangeability of the end plate itself allows the doctor blade to be stored in a recess in the end plate, as is per se is known from DE-U-87 13 787. Since the end plates there are not easily removable, however, horizontal slots have to be connected to the recesses which receive the end pins of the doctor blade, through which the bearing pins of the doctor roller roll when inserted. will. In operation, the bearing journals are located lower than these lateral slots, so that there is no fear of the roller doctor being inadvertently lost. When the roller doctor device is rotated around the spar carrying the end plates, the doctor roller can fall out of the holder and thereby damage the surrounding circular templates. This possibility also exists when the roller doctor device is inserted and when it is removed, so that there are concerns in the known device against handling the roller doctor device together with the doctor roller.
  • FIG. 1 is a view of a support beam with an end plate attached thereto
  • FIG. 2 shows the inside view of the end plate from FIG. 1
  • FIG. 3 shows a horizontal section through the recess 3 in FIG. 1
  • FIG. 4 shows the assembly of the device according to FIG . 1.
  • the device shown in Fig. 1 is used to apply a substance to a base 7 by means of a doctor roller 1, which is arranged by a magnet, not shown, arranged below the base 7 is attracted.
  • a doctor roller 1 which is arranged by a magnet, not shown, arranged below the base 7 is attracted.
  • Such devices are known and are not described in detail here.
  • the end plate 4 can be displaced vertically in relation to the support bar 9 between a sheet metal 10 running vertically in the machining direction and a guide plate 11 and can be detached from the support bar 9 by means of the handle 12.
  • the end plate 4 has a slot 13, which is penetrated by a pin 14. This pin can be retracted against the force of a spring 17, which is supported on the one hand on a fixed plug 18 and on the other hand on a movable disk 19. As a result, the end plate 4 is easily detachable by means of the handle 12.
  • the end plate 4 carrying the doctor roller 1 is pushed onto the fastening plate 15 in the direction thereof until the pin 14 penetrates the opening 16 in the fastening plate 15. Since this opening 16 only loosely surrounds the pin 14, there is a certain vertical mobility for the end plate. In the lateral direction, this is secured by the plate 10 and by the guide plate 11 on the mounting plate 15. A magnetizable plate on the outside of the end part 4 allows it to be pressed against the base 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
EP90120525A 1989-10-28 1990-10-26 Dispositif d'application d'une substance sur une bande de matériau Expired - Lifetime EP0426014B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE8912899U DE8912899U1 (de) 1989-10-28 1989-10-28 Einrichtung zum Auftragen einer Substanz auf eine Warenbahn
DE8912899U 1989-10-28
DE9003129U DE9003129U1 (de) 1990-03-15 1990-03-15 Rollrakelgerät, insbesondere für Rundschablonen-Auftragungen
DE9003129U 1990-03-15

Publications (3)

Publication Number Publication Date
EP0426014A2 true EP0426014A2 (fr) 1991-05-08
EP0426014A3 EP0426014A3 (en) 1991-07-17
EP0426014B1 EP0426014B1 (fr) 1994-12-21

Family

ID=25955466

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90120525A Expired - Lifetime EP0426014B1 (fr) 1989-10-28 1990-10-26 Dispositif d'application d'une substance sur une bande de matériau

Country Status (3)

Country Link
EP (1) EP0426014B1 (fr)
AT (1) ATE115914T1 (fr)
DE (1) DE59008077D1 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2919097A (en) * 1956-08-22 1959-12-29 Ivan C Bohlman Holding device
DE8709029U1 (de) * 1987-06-30 1988-11-03 Zimmer, Johannes, Klagenfurt Einrichtung zum Auftragen einer Substanz auf eine Warenbahn

Also Published As

Publication number Publication date
ATE115914T1 (de) 1995-01-15
EP0426014A3 (en) 1991-07-17
EP0426014B1 (fr) 1994-12-21
DE59008077D1 (de) 1995-02-02

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