Rotary printing machine and printed web folding and handling system combination

• US 5,176,371 A
• Filed: 08/01/1991
• Issued: 01/05/1993
• Est. Priority Date: 09/29/1990
• Status: Expired due to Fees

• Current Assignee: Man Roland Druckmaschinen AG (Allianz Se)
• Original Assignee: Man Roland Druckmaschinen AG (Allianz Se)
• Inventors: Rau, Gunnar, Heller, Albert
• Primary Examiner(s): NOT, DEFINED
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US07/739,191
• Time in Patent Office: 523 Days
• Field of Search: 270/5, 270/6, 270/40, 270/41, 270/42
• US Class Current: 270/42
• CPC Class Codes: B65H 45/221 incorporating folding triangles

Abstract

To ensure accurately aligned handling of a plurality of superposed webs (3, 4) forming a composite web, which is to be folded longitudinally twice, particularly to maintain alignment of the individual folded web portions for subsequent application of indices, month, or other date identification and the like, particularly for book and calendar printing, two longitudinally located folding triangle or formers (22, 40) are located, one immediately behind the other, in the path or stream of flow of the webs, in which the first one receives the webs, after lateral alignment and the like, from the printing machine, and the second one is rotated 90° with respect to the incoming web to the first folding former, and applies a second fold. This ensures that the web is always processed in a linear path without twist or lateral offset, thus ensuring alignment of the individual elements of the composite folded web (8). Preferably, the first one, in the flow of the web, of the folding formers (9, 22) is height-adjustable to accommodate different formats of receiving paper and ensuring that the folded edge will always be in a predetermined plane, which will be the plane of arrival of the folded products to the second folding former (11, 40), and provide a reference edge for subsequent handling apparatus, such as perforators or punches (14), a cutter (16) and belt transport systems (17,19).

Claims

1. For combination with a rotary web-type printing machine,

a printed web folding and handling system, receiving a printed web (8) traveling in a direction from the printing machine, said printing machine being located, with respect to web travel, upstream of said folding and handling system in a downstream direction,

said system having

a first or upstream longitudinal folding device (9) comprising a first folding former or triangle (22), and

a second longitudinal folding device (11) comprising a second folding former or triangle (44), located downstream of said first folding device,

said longitudinal folding devices (9, 11) being positioned along the path of travel of the web, and

an arrangement which provides a linear path of said web through said system, without twist or offset of said web,

wherein the upstream folding device (9) is adjustable only in vertical direction;

the second folding device (11) is rotated by 90°

with respect to said first folding device (9);

the first and second folding devices (9,

     11) are located immediately adjacent each other in the path of travel of the web (8); and

wherein said system further comprises a pair of pull-off rollers (10, 101,

     102) located immediately downstream of said first folding former or triangle (22), and a run-on or supply roller (39) positioned immediately adjacent said first pair of pull-off rollers, and additionally immediately adjacent the second folding former or triangle (40), said system being devoid of any other rollers between said first and second folding triangles (22,

     40).

2. The system of claim 1, wherein the second longitudinal folding device (11) is fixed in said system;

wherein said system further includes at least one further unit comprising at least one of;

paper pulling or tensioning roller units (12,

     15);

paper web processing units (14,

     16);

paper transport units (17,

     19);

paper imbricating positioning units (18), and at least one subsequent paper processing station unit; and

wherein the paper path from said downstream folding device (11) towards said paper web processing unit (20) is a longitudinal path devoid of introduction of twist or lateral shift or offset to said paper web in its path towards said paper web processing unit (20).

3. The system of claim 1, wherein the run-on or supply roller (39) of the second folding device is positioned on a side of the web which is opposite the side engaged by the second folding former or triangle (40).

4. The system of claim 3, wherein the run-out or pulling roller pair (10, 101, 102) is physically coupled to and forms part of the second folding device, whereby, upon vertical adjustment of said first or upstream folding device, said run-out or pulling roller pair will remain stationary with respect to the first folding former or triangle.

5. The system of claim 3, wherein said second longitudinal folding device (11) is fixed in said system.

6. The system of claim 1, wherein the run-out or pulling roller pair (10, 101, 102) is physically coupled to and forms part of the second folding device, whereby, upon vertical adjustment of said first or upstream folding device, said run-out or pulling roller pair will remain stationary with respect to the first folding former or triangle.

7. The system of claim 6, wherein said second longitudinal folding device (11) is fixed in said system.

8. The system of claim 1 wherein said second longitudinal folding device (11) is fixed in said system.

9. The system of claim 1, wherein said pair of pull-off rollers (10, 101, 102) have axes of rotation which are fixed in said system.

10. For combination with a rotary web-type printing machine,

a printed web folding and handling system, receiving a printed web (8) traveling in a direction from the printing machine, said printing machine being located, with respect to web travel, upstream of said folding and handling system in a downstream direction,

said system having

a first or upstream longitudinal folding device (9) comprising a first folding former or triangle (22), and

a second longitudinal folding device (11) comprising a second folding former or triangle (44), located downstream of said first folding device,

said longitudinal folding devices (9, 11) being positioned along the path of travel of the web, and

an arrangement which provides a linear path of said web through said system, without twist or offset of said web,

wherein the second folding device (11) is rotated by 90°

with respect to said first folding device (9);

the first and second folding devices (9,

     11) are located immediately adjacent each other in the path of travel of the web (8); and

further including means for vertically adjusting said first longitudinal folding device (9) to shift said device vertically, said vertically adjusting means including

a threaded spindle (28);

drive means (29) coupled to said spindle for rotating the spindle;

rack means (30,

     31) extending in a plurality of planes, each of which is perpendicular to the run-off direction of the web, after leaving the folding device;

gear means (34,

     35) engageable with said rack means;

coupling means (32, 33,

     36) coupling said gear means for synchronous, concurrent rotation;

bearing blocks (26,

     27) retaining said gear means, one of said bearing blocks being coupled to said spindle (28);

and link means (24,

     25) secured to spaced positions on the first folding former or triangle (22) and coupling said bearing blocks (26,

     27) to the folding former or folding triangle, for shifting said folding former or folding triangle, without tilt or twist, in a direction parallel to the plane of the web (8), folded by the folding triangle or former and leaving said first folding triangle or former (22).

11. The system of claim 10, wherein said direction of the folded web (8) leaving said first folding former or triangle (22) is vertical, and said first folding former or triangle (22) is shifted in a vertical direction.

12. The system of claim 10, wherein said second longitudinal folding device (11) is fixed in said system.

13. The system of claim 10, wherein said system further comprises a pair of pull-off rollers (10, 101, 102) located immediately downstream of said first folding former or triangle (22), and a run-on or supply roller (39) positioned immediately adjacent said first pair of pull-off rollers, and additionally immediately adjacent the second folding former or triangle (40), said system being devoid of any other rollers between said first and second folding triangles (22, 40).

14. The system of claim 13, wherein said pair of pull-off rollers (10, 101, 102) have axes of rotation which are fixed in said system.

15. For combination with a rotary web-type printing machine,

a printed web folding and handling system, receiving a printed web (8) traveling in a direction from the printing machine, said printing machine being located, with respect to web travel, upstream of said folding and handling system in a downstream direction,

said system having

a first or upstream longitudinal folding device (9) comprising a first folding former or triangle (22), and

a second longitudinal folding device (11) comprising a second folding former or triangle (44), located downstream of said first folding device,

said longitudinal folding devices (9, 11) being positioned along the path of travel of the web, and

an arrangement which provides a linear path of said web through said system, without twist or offset of said web,

wherein the upstream folding device (9) is vertically adjustable;

the second folding device (11) is rotated by 90°

with respect to said first folding device (9);

the first and second folding devices (9,

     11) are located immediately adjacent each other in the path of travel of the web (8);

the second longitudinal folding device (11) is fixed in said system;

wherein said system further includes at least one further unit comprising at least one of;

paper pulling or tensioning roller units (12,

     15);

paper web processing units (14,

     16);

paper transport units (17,

     19);

paper imbricating positioning units (18), and at least one subsequent paper processing station unit (20);

wherein the paper path from said downstream folding device (11) towards said paper web processing station unit (20) is a longitudinal path devoid of introduction of at least one of;

twist, lateral shift, and offset to said paper web in its path towards said paper web processing station unit (20); and

wherein one of said paper web processing units comprises

a cutter means (16) cutting said web into cut, printed products, and at least one belt or web transport unit (17,

     19);

and wherein one of said paper transport units (17,

     19) comprises

a pair of transport belts (43,

     54) in surface engagement with each other and rotating about spaced drive rollers (47, 48;

61,

     62), at a fixed axial position about said rollers, the printed cut products being positioned between the surfaces of the transport webs or belts of a pair;

a plurality of additional transport belt pairs (44, 45, 46;

55, 56,

     57);

and guide roller means (44, 45, 46;

55, 56,

     57) engageable with respective ones of said further transport webs or belts, and axially adjustable, with respect to the axes of rotation of said drive rollers, for commonly shifting said further transport belt or web pairs in accordance with the format and size of the printed cut products being transported by said transport belt unit.

16. The system of claim 15, wherein said paper transport units comprise

a first web or belt transport system (17);

a second web or belt transport system (19), said transport systems being located downstream of said cutting device and transporting the cut products;

and further including a stabilization unit having a cam (181) located between the first transport system (17) and the second transport system (19), said cam being positioned for engagement with the printed, cut products, and positively feeding said printed, cut products, received from the first transport system (17) to the second transport system (19).