EP0883494A1 - Gripper actuating cam - Google Patents
Gripper actuating camInfo
- Publication number
- EP0883494A1 EP0883494A1 EP97949983A EP97949983A EP0883494A1 EP 0883494 A1 EP0883494 A1 EP 0883494A1 EP 97949983 A EP97949983 A EP 97949983A EP 97949983 A EP97949983 A EP 97949983A EP 0883494 A1 EP0883494 A1 EP 0883494A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet
- gripper
- grippers
- row
- cylinder
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F21/00—Devices for conveying sheets through printing apparatus or machines
- B41F21/10—Combinations of transfer drums and grippers
Definitions
- the invention relates to a gripper actuation curve for printing machines.
- Printing presses are known (DR 435 592) which have a triple-size impression cylinder with three printing calipers and three rows of grippers, the impression cylinder interacting with a double-size offset cylinder with two printing blanket saddles and this with a double-size printing form cylinder with two printing plate saddles.
- the printing form cylinders are each assigned two inking and dampening units which can be brought into active connection with the two printing forms of the printing form cylinder.
- Two revolutions of the printing cylinder are required to produce a multi-color print, and only one sheet in two is fed by a feed device to a second printing saddle. Furthermore, a printed sheet is only removed from a discharge device by every second pressure saddle.
- the object of the invention is to create a gripper actuation curve for printing presses with a plurality of gripper rows, with only one sheet being fed to every second gripper row and only one sheet being removed from every second row of grippers.
- Fig. 2 sheet feed to the 1st row of grippers
- Fig. 1 is a printing press with a printing cylinder 1 with three printing surfaces 2.1; 2.2; 2.3 and three gripper rows 3.1; 3.2; 3.3 shown.
- the pressure cylinder 1 interacts with two offset cylinders 4.
- Each offset cylinder inder 4 has two active surfaces 9.1; 9.2 equipped.
- the printing cylinder 1 thus has i + 1 printing areas in relation to the offset cylinder 4 with i active areas.
- the sheet transfer point sheet feed / impression cylinder is identified with the reference number 6.
- a sheet discharge 7 is also assigned to the impression cylinder 1.
- the sheet transfer point printing cylinder / sheet discharge is identified by the reference number 8.
- the impression cylinder 1 is shown in the individual sheet transfer and sheet transfer phases.
- Each gripper row 3.1; 3.2; 3.3 is each equipped with a roller lever 10.1 equipped with a roller; 10.2; 10.3 connected.
- the rollers of the roller levers are operatively connected to a gripper actuation curve 11.
- the gripper actuation curve 11 is rotatable the axis of the pressure cylinder 1 and provided via a not shown, firmly connected to the gripper actuation curve 11 gear, which is operatively connected to a fixed to the offset cylinder 4 gear. If the role of a roller lever 10 is on the high stroke 12 of the gripper actuation curve 11, ie on the circular arc, the grippers of the gripper row 3 assigned to the respective roller lever 10 are closed. If the roller of a roller lever 10 is on the low stroke 13, the grippers of the gripper row 3 assigned to the respective roller lever 10 are opened.
- the gripper opening point is identified with the reference number 14 and the gripper closing point with the reference number 15.
- the curve angle o between the opening and closing point of the gripper is half the magnitude of the frame angle t between the sheet transfer and transfer point 6; 8th.
- a first sheet 16 to be printed is transferred from the sheet feeder 5 at the sheet transfer point 6 to the first row of grippers 3.1.
- the role of the roller lever 10.1 moves from the low stroke 13 to the high stroke 12 and the grippers of the first row of grippers 3.1 are closed.
- a second and third sheet 17 to be printed; 18 is in the phase shown in FIG. 2 on the two remaining printing areas 2.2; 2.3 of the printing cylinder 1.
- a fourth sheet 19 is transferred to the third gripper row 3.3 at the sheet transfer point 6, since the roller of the third roller lever 10.3 runs from the low stroke 13 to the high stroke 12 and the first sheet 16 passes the sheet transfer point 8 without opening the row of grippers, since the roller of the first roller lever 10.1 runs on the high stroke 12.
- the first gripper row 3.1 with the first sheet 16 passes the sheet transfer point 6 without the gripper opening and the second sheet 17 is transferred from the opened grippers of the second row of grippers 3.2 to the sheet discharge 7.
- the fourth sheet 19 passes the sheet transfer point 8 without the gripper opening and a fifth sheet 20 is transferred to the open grippers of the second row of grippers 3.2.
Landscapes
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19650011A DE19650011A1 (en) | 1996-12-03 | 1996-12-03 | Gripper actuation curve |
DE19650011 | 1996-12-03 | ||
PCT/DE1997/002797 WO1998024628A1 (en) | 1996-12-03 | 1997-11-28 | Gripper actuating cam |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0883494A1 true EP0883494A1 (en) | 1998-12-16 |
EP0883494B1 EP0883494B1 (en) | 2000-07-19 |
Family
ID=7813441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97949983A Expired - Lifetime EP0883494B1 (en) | 1996-12-03 | 1997-11-28 | Printing machine |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0883494B1 (en) |
DE (2) | DE19650011A1 (en) |
WO (1) | WO1998024628A1 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE84115C (en) * | ||||
US1651409A (en) * | 1923-06-30 | 1927-12-06 | Babcock Printing Press Mfg Com | Sheet-transfer mechanism for multicylinder presses |
GB235269A (en) * | 1924-03-04 | 1925-06-04 | Fred Waite | Improvements appertaining to gripper mechanism for rotary printing machines |
DD153473A3 (en) * | 1979-12-27 | 1982-01-13 | Oskar Birke | DEVICE FOR CONTROLLING THE FOLDING FLAPS OF A FOLDING CYLINDER |
US5469787A (en) * | 1994-03-15 | 1995-11-28 | Heath Custom Press, Inc. | Multi-color printing press |
-
1996
- 1996-12-03 DE DE19650011A patent/DE19650011A1/en not_active Withdrawn
-
1997
- 1997-11-28 EP EP97949983A patent/EP0883494B1/en not_active Expired - Lifetime
- 1997-11-28 DE DE59702056T patent/DE59702056D1/en not_active Expired - Fee Related
- 1997-11-28 WO PCT/DE1997/002797 patent/WO1998024628A1/en active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO9824628A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0883494B1 (en) | 2000-07-19 |
DE19650011A1 (en) | 1998-06-04 |
DE59702056D1 (en) | 2000-08-24 |
WO1998024628A1 (en) | 1998-06-11 |
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Legal Events
Date | Code | Title | Description |
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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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Effective date: 19981123 |
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Owner name: KOENIG & BAUER AKTIENGESELLSCHAFT |
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RTI1 | Title (correction) |
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