WO1991001885A1 - Registration bars - Google Patents
Registration bars Download PDFInfo
- Publication number
- WO1991001885A1 WO1991001885A1 PCT/GB1990/001160 GB9001160W WO9101885A1 WO 1991001885 A1 WO1991001885 A1 WO 1991001885A1 GB 9001160 W GB9001160 W GB 9001160W WO 9101885 A1 WO9101885 A1 WO 9101885A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- roll
- leg
- support
- bar
- support means
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F27/00—Devices for attaching printing elements or formes to supports
- B41F27/005—Attaching and registering printing formes to supports
Definitions
- This invention relates to registration bars, and is particularly concerned with the location of a registration bar with respect to a printing roll.
- a support means for a registration bar comprises an angled support member one leg of which is provided with a hinged connection to a support, and the second leg of which is adjustably mounted on the said one leg, said registration bar being adjustably mounted on said second leg of said support member.
- two angled support members are provided to support the reference bar at each end thereof.
- the angled support member may be of generally L or T- shaped configuration, with the adjustable connection between the said one and second legs allowing the height of the second leg to be varied and the adjustable connection of the reference bar to the second leg allowing the distance of the reference bar from the said one leg to be varied, both to suit a particular diameter of a roll to which flexible polymer sheeting is to be applied.
- the angled support members can be swung to an inoperative position to allow a printing roll to be located by its spindle in bearing blocks on the support, and with the roll in place, the support members swung back to the operative position.
- the hinged connection of the said one leg can embody stop means to locate the support member in its operative position, following which the height of the second leg on the first leg can be adjusted, and the position of the reference bar on the second leg can be adjusted, such that the reference bar is positioned in close spaced relationship to the surface of the roll and preferably co-planar with the outer edge of the printing roll.
- bearing means on the said second leg, which, in use, contact the surface of the roll, and such that with the two adjustments referred to above for a specific roll diameter, contact between the bearing means and the roll surface guarantees the positioning of the reference bar in relation to the roll surface.
- the bearing means is a roller secured to the second leg.
- the roll may need to be rotated following the wrapping of one sheet and the wrapping of the succeeding adjacent sheet.
- Figure 1 is a perspective view of a support means for a registration bar, in accordance with the invention.
- Figure 2 is a section generally on the line II-II of Figure 1.
- a printing roll 1 is shown located in bearing blocks 2 mounted on a table 3, the bearing blocks being adjustably mounted to enable rolls of different length to be accommodated. Also adjustably mounted on the table 3 are tail stocks 4 to abut the ends of the roll spindles and to prevent transverse movement of the roll.
- a reference bar 5 bearing reference pins 6 is adjustably secured to the fi ⁇ end of one Peg 7 of a generally L or T-shaped support member 8, the leg 7 being adjustably mounted on the other leg 9 of the support.
- the leg 9 is pivotally mounted in support blocks 10 secured to the table.
- a bearing roller 11 is provided on an underslung support member 12 having a number of holes 13 for adjustably positioning the roller 11.
- the two reference bar supports 8, along with the reference bar are swung rearwardly of the table to provide unrestricted axis of the printing roll 1 to position the printing roll 1 in its bearing blocks 2, the printing roll then being moved as required horizontally to align the printing roll with the reference bar, and the tail stocks 4 then screwed up into contact with the ends of the roll spindles and hence prevent further horizontal movement of the rolls.
- the reference bar supports are then swung back to the operative position, and the height of the leg 7 on the leg 9 adjusted and the bearing roll 11 located along its support 12 such that the reference bar 5 is in a vertical disposition with the bearing roll in contact with the printing roll at approximately its top dead centre.
- the reference bar 5 is then adjusted on the leg 7 such that it is substantially co- planar with the outer edge of the printing roll.
- the lower edge of the reference bar and hence the reference pins on the registration bar can be positioned in very close proximity to the printing roll surface, irrespective as to the diameter of the roll, within the limit of the height of the legs 9 of the support 8.
- a flexible polymer sheet 13 can be located on the reference pins by holes strategically formed at the edge of the sheet and the sheet wrapped on to the roll with ease.
- an indexing means 14 is provided formed by a toothed wheel in a housing 15 having access holes 16, to fit over the spindle of the printing roll.
- a stop bar 17 mounted on the table alongside the housing 15, is a stop bar 17 with an inturned projection 18, pivotally mounted on a support 19 and with a screw operating mechanism 20. At the outset, the stop bar can be lowered for the projection 18 to penetrate a hole 16 to engage the toothed wheel and hold the roll against rotation.
- the stop bar When rotation of the roll is required, the stop bar is raised and the roll along with the housing 15 rotated to bring a second hole 16 of a predetermined circumferential spacing to a position where the stop bar can be lowered for the projection 18 to pass through it to engage the toothed wheel, and hold the printing roll at a required displacement and to allow correct positioning of a second polymer sheet on the printing roll.
- An advantage of the invention is its ability to accommodate rolls of a variety of diameters, but a further advantage is that when a second roll is presented, of the same diameter as the first roll, all the settings previously applied can remain, and the reference bar supports and the reference bar swung back to allow the roller 11 to contact the second roll with the certainty that the reference bar is correctly positioned in relation to the roll edge.
Landscapes
- Rotary Presses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8917101.1 | 1989-07-26 | ||
GB898917101A GB8917101D0 (en) | 1989-07-26 | 1989-07-26 | Registration bars |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991001885A1 true WO1991001885A1 (en) | 1991-02-21 |
Family
ID=10660667
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1990/001160 WO1991001885A1 (en) | 1989-07-26 | 1990-07-26 | Registration bars |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0484428A1 (en) |
AU (1) | AU6173290A (en) |
GB (1) | GB8917101D0 (en) |
WO (1) | WO1991001885A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2678548A1 (en) * | 1991-07-03 | 1993-01-08 | Schisler Cie Europ Emballages | DEVICE FOR POSITIONING A CLICK ON A PRINTING CYLINDER. |
WO2017207006A1 (en) * | 2016-05-31 | 2017-12-07 | Glunz & Jensen | A pin system for easy mounting and disassembling printing plates |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2907274A (en) * | 1955-08-22 | 1959-10-06 | Taylor Machine Company | Method and apparatus for registering cylindrical forms |
EP0015471A1 (en) * | 1979-02-28 | 1980-09-17 | E.I. Du Pont De Nemours And Company | Apparatus and method for mounting flexible printing plates |
US4750248A (en) * | 1986-04-29 | 1988-06-14 | Press Ready Plate, Inc. | Film and plate registration system |
-
1989
- 1989-07-26 GB GB898917101A patent/GB8917101D0/en active Pending
-
1990
- 1990-07-26 EP EP19900912187 patent/EP0484428A1/en not_active Withdrawn
- 1990-07-26 WO PCT/GB1990/001160 patent/WO1991001885A1/en not_active Application Discontinuation
- 1990-07-26 AU AU61732/90A patent/AU6173290A/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2907274A (en) * | 1955-08-22 | 1959-10-06 | Taylor Machine Company | Method and apparatus for registering cylindrical forms |
EP0015471A1 (en) * | 1979-02-28 | 1980-09-17 | E.I. Du Pont De Nemours And Company | Apparatus and method for mounting flexible printing plates |
US4750248A (en) * | 1986-04-29 | 1988-06-14 | Press Ready Plate, Inc. | Film and plate registration system |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2678548A1 (en) * | 1991-07-03 | 1993-01-08 | Schisler Cie Europ Emballages | DEVICE FOR POSITIONING A CLICK ON A PRINTING CYLINDER. |
EP0526280A1 (en) * | 1991-07-03 | 1993-02-03 | C.E.E.- Compagnie Europeenne Des Emballages Robert Schisler | Process and device for positionning a printing plate on a form cylinder |
WO2017207006A1 (en) * | 2016-05-31 | 2017-12-07 | Glunz & Jensen | A pin system for easy mounting and disassembling printing plates |
Also Published As
Publication number | Publication date |
---|---|
GB8917101D0 (en) | 1989-09-13 |
AU6173290A (en) | 1991-03-11 |
EP0484428A1 (en) | 1992-05-13 |
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