EP1333988A1 - Positioniereinrichtung für druckköpfe - Google Patents
Positioniereinrichtung für druckköpfeInfo
- Publication number
- EP1333988A1 EP1333988A1 EP01996464A EP01996464A EP1333988A1 EP 1333988 A1 EP1333988 A1 EP 1333988A1 EP 01996464 A EP01996464 A EP 01996464A EP 01996464 A EP01996464 A EP 01996464A EP 1333988 A1 EP1333988 A1 EP 1333988A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- holder
- positioning device
- receptacle
- guide
- parallelogram
- 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- Withdrawn
Links
- 230000005489 elastic deformation Effects 0.000 claims description 5
- 238000007639 printing Methods 0.000 description 4
- 239000000969 carrier Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J25/00—Actions or mechanisms not otherwise provided for
- B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
- B41J2202/01—Embodiments of or processes related to ink-jet heads
- B41J2202/14—Mounting head into the printer
Definitions
- the invention relates to a positioning device for print heads according to the preamble of claim 1.
- GB 2349607 A discloses a printing device with several printing heads.
- the printheads are arranged on holders with guides.
- Printing systems such as inkjet printing systems use printheads that have to be precisely positioned in order to achieve a high-quality print image.
- all printheads must be aligned with one another with great accuracy and position errors of just a few ⁇ m. This is made more difficult by the necessity that the alignment of the print heads in the other directions, that is to say apart from the distance from one another, should remain as unaffected as possible by the aforementioned alignment.
- very good positional accuracy should be ensured over a long period of time after alignment.
- the invention has for its object to provide a positioning device for printheads.
- a positioning device for printheads is to be created, which permits precise alignment of the printheads to one another and, after alignment, guarantees great positional accuracy over a long period of time.
- the object is achieved by the features of claim 1.
- the advantages which can be achieved with the invention consist in particular in that a linear guide of the printhead is provided relative to the holder, that is to say the respective printhead can be linearly adjusted without changing its orientation with respect to other axes.
- the parallelogram guide can implement the principle of a four-bar linkage.
- the recording is stored in the manner of a four-joint three-stroke. This ensures simple, precise and permanently stable positioning of the print head.
- the receptacle is integrally formed in one piece on the holder. It can be connected to the holder via the parallel guide, which is also preferably made in one piece.
- the receptacle, the parallel guide and the holder therefore preferably do not consist of several interconnected components, but rather are made of one piece.
- the parallel guide can be moved by elastic deformation, so that the holder can carry out the desired linear adjustment movement.
- Correspondingly designed sections of the parallel guide are elastically deformable and thereby form the joints of the parallel guide. As a result, efficient producibility is achieved. Installation steps required to connect separate components are not required.
- the parallel guide can consist of a linear guide, e.g. B. two parallel, preferably bar-shaped guide parts and a common connecting part, which is connected to the two guide parts.
- the two guide parts can be connected to the holder at first ends, so that they can be pivoted about said first ends. With their opposite second ends, the two parallel guide parts are connected to the common connecting part, the connecting points between the common connecting part and the second ends - like the first ends of the guide parts - being elastically deformable, so that the connecting part is connected in an articulated manner to the two guide parts is.
- the common connecting part when pivoting the two parallel guide parts around their first ends translationally displaced, that is, without experiencing a rotational movement.
- the receptacle for the print head is preferably articulated on the common connecting part.
- the receptacle can be formed by two spaced-apart, preferably parallel fastening arms, between which the print head can be fastened.
- the fastening arms extend away from the common connecting part, in particular parallel to the two guide parts.
- the two fastening arms can be molded onto the connecting part in such a way that only one slot-shaped recess extends between the two fastening arms and the bar-shaped guide parts. The fastening arms thus form a U with the respective corresponding guide part of the parallelogram guide.
- the printheads are preferably fastened to the fastening arms at a distance from the connection of the fastening arms to the common connecting part between the guide parts, so that any torsion is completely decoupled or rotary components by the elastic deformation of the parallelogram parts are switched off. Accordingly, the print head is moved purely translationally.
- the holder can have a rigid, preferably block-like setting base on which the adjusting device, which acts and moves the parallelogram guide, is supported.
- the parallelogram guide is preferably arranged directly opposite the setting base, so that the parallelogram guide is separated from the setting base only by a slot-shaped recess.
- the parallelogram guide is formed by mutually parallel slot-shaped recesses in the holder, which run open on different sides of the holder. The sections lying between two adjacent slots form the guide parts of the parallelogram guide.
- the setting base forms the associated one Guide part and the adjoining mounting arm each have a meandering arrangement, which ensure the linear adjustability of the corresponding printhead.
- the respective print head can also be attached to the receptacle by means of dowel pins or by means of stencils.
- the adjusting device is preferably designed mechanically.
- a preferably self-locking adjusting screw can be provided with which the parallelogram guide can be subjected to tension and / or pressure so that it moves accordingly.
- the adjusting device can also have a piezo element or a spindle drive with a nut.
- the setting device can engage at various points in the parallelogram guide.
- the setting device is arranged in such a way that it acts on the parallelogram guide in the region of its common connecting part. This achieves a high degree of precision in setting the position of the print head holder.
- the carrier has a plurality of receptacles for a plurality of print heads and the associated plurality of parallelogram guides, so that each of the receptacles can be adjusted in position.
- the parallelogram guides are aligned parallel to each other so that each print head can be moved and adjusted in the same direction. This enables precise alignment of the printheads to one another without changing the alignment of the printheads in other axes. The distance between the printheads depends on their firing order.
- the holder can be attached to a central carrier with a precise fit. Several holders with a corresponding number of print heads can be attached to the central support.
- the holder and carrier are formed separately from one another.
- a detachable, in particular positive connection is provided between the holder and the carrier.
- the holder can be precisely positioned on the carrier by means of dowel pins and fastened to the carrier by means of fastening screws.
- the invention is explained in more detail below with the aid of a preferred exemplary embodiment and an associated drawing.
- the single drawing shows a positioning device in a schematic sectional view according to a preferred embodiment of the invention.
- the positioning device shown in the figure has a holder 1 which is fastened on a carrier 2.
- the holder 1 is precisely positioned on the carrier 2 by means of dowel pins 3 and detachably fastened to the carrier 2 with fastening screws 4.
- the holder 1 is generally block-shaped. It has two recesses 5 which are open towards the carrier 2 and in each of which a print head 6 is arranged.
- the carrier 2 has corresponding recesses 5 through which the print heads 6 can protrude.
- a receptacle 7 is provided, which receives the respective print head 6 with a precise fit.
- the receptacles 7 are integrally formed on the holder 1.
- the receptacles 7 are each linearly displaceable relative to the body of the holder 1 by a parallelogram guide 8.
- the parallelogram guide 8 is both with of the receptacle 7 and also integrally formed in one piece with the rest of the body of the holder 1 and connects the receptacle 7 to the body of the holder 1.
- Each of the parallel guides 8 consists of two bar-shaped, mutually parallel guide parts 9, each of which has a first end on the body of the holder 1.
- the opposite second ends of the guide parts 9 are connected by a common, transversely extending connecting part 10, which synchronizes a deflection of the guide parts 9 around their first ends.
- the guide parts 9 and the common connecting part 10 form a three-part four-bar linkage which is fixed to the body of the holder 1 with the first ends of the guide parts 9 and can be deformed in the manner of a parallelogram.
- the guide parts 9 are each through two parallel slots 11; 12 limited in the holder 1, which run open on different sides of the holder 1, so that the respective guide part 9 can move about its first end with elastic deformation of the root area.
- an adjusting screw 17 is provided as an adjusting device 17, which is mounted in a threaded bore in the body of the holder 1.
- the holder 1 has an adjustment base section 18 which is guided through the Slot 12 is separated from the guide part 9.
- the adjusting screw 17 acts perpendicular to the longitudinal direction of the guide part 9. It acts on the parallelogram guide 8 in the area of the common connecting part 10, which connects the two guide parts 9, whereby a high precision in the setting of the position of the respective printhead 6 is achieved.
Landscapes
- Ink Jet (AREA)
- Common Mechanisms (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10057060 | 2000-11-17 | ||
| DE2000157060 DE10057060C1 (de) | 2000-11-17 | 2000-11-17 | Positioniereinrichtung für Druckköpfe |
| PCT/DE2001/003941 WO2002040284A1 (de) | 2000-11-17 | 2001-10-15 | Positioniereinrichtung für druckköpfe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1333988A1 true EP1333988A1 (de) | 2003-08-13 |
Family
ID=7663670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01996464A Withdrawn EP1333988A1 (de) | 2000-11-17 | 2001-10-15 | Positioniereinrichtung für druckköpfe |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1333988A1 (de) |
| AU (1) | AU2002223482A1 (de) |
| DE (1) | DE10057060C1 (de) |
| WO (1) | WO2002040284A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018202658A1 (de) * | 2017-03-27 | 2018-09-27 | Heidelberger Druckmaschinen Ag | Verfahren zum Einsetzen eines Tintendruckkopfes in einen Halter |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57103853A (en) * | 1980-12-19 | 1982-06-28 | Seiko Epson Corp | Ink jet recorder |
| US4608576A (en) * | 1983-06-15 | 1986-08-26 | Ricoh Company, Ltd. | Multi-pen plotter-printer |
| JPS60125158U (ja) * | 1984-01-31 | 1985-08-23 | ブラザー工業株式会社 | 印字装置 |
| JPS6389358A (ja) * | 1986-10-02 | 1988-04-20 | Toyota Autom Loom Works Ltd | 高画質サ−マルプリンタ |
| JPH05238004A (ja) * | 1992-02-26 | 1993-09-17 | Canon Inc | 記録方法及び装置及びその記録物 |
| DE69412805T2 (de) * | 1994-07-18 | 1999-03-11 | Oce-Nederland B.V., Venlo | Drucker mit einem beweglichen Druckkopf |
| US5598192A (en) * | 1995-06-08 | 1997-01-28 | Xerox Corporation | Thermal ink jet printhead with extended print capability |
| US6154232A (en) * | 1999-01-19 | 2000-11-28 | Hewlett-Packard Company | Drum-based printers using multiple pens per color |
-
2000
- 2000-11-17 DE DE2000157060 patent/DE10057060C1/de not_active Expired - Fee Related
-
2001
- 2001-10-15 EP EP01996464A patent/EP1333988A1/de not_active Withdrawn
- 2001-10-15 AU AU2002223482A patent/AU2002223482A1/en not_active Abandoned
- 2001-10-15 WO PCT/DE2001/003941 patent/WO2002040284A1/de not_active Ceased
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO0240284A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2002223482A1 (en) | 2002-05-27 |
| DE10057060C1 (de) | 2002-05-08 |
| WO2002040284A1 (de) | 2002-05-23 |
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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 |
|
| 17P | Request for examination filed |
Effective date: 20030201 |
|
| AK | Designated contracting states |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: SCHASCHEK, KARL, ERICH, ALBERT Inventor name: KOBLINGER, MICHAEL Inventor name: ECK, RAINER |
|
| 17Q | First examination report despatched |
Effective date: 20061228 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
| 18W | Application withdrawn |
Effective date: 20090325 |