Method and device for feeding a cover

Abstract

A method and apparatus for feeding a cover (10, 11, 12, 13) in the production of perfect-bound or saddle-stitched books, brochures, magazines or similar printed products (14, 15) featuring an inner part (2) that consists of a collection of folded sections, layers and/or individual sheets and a cover (10, 11, 12, 13) that is placed around the inner part (2) and connected thereto. A roll (3) comprising a wound-up cover web (4) is supplied, the cover web (4) is unwound and a cover sheet (10, 11, 12, 13) with the desired format height is separated from the cover web (4, 8) and fed to the inner part (2) in order to be placed around the inner part and connected thereto. This allows a reliable and flawless feed of the covers to the inner parts, and the operating effort for the cover feed is reduced.

Description

BRIEF DESCRIPTION OF THE DRAWING

The invention is disclosed in greater detail in the following description of the preferred embodiments and accompanying drawing, in which the figures contain simplified partial perspective representations:

FIG. 1 shows an adhesive binder with a cover feed for the production of a simple brochure with a cover that is scored twofold or fourfold;

FIG. 2 shows an adhesive binder with a cover feed for the production of lay-flat brochures with advertising cards glued to the inside of the cover;

FIG. 3 shows an adhesive binder with a cover feed for the production of perfect-bound book blocks by means of combined end sheets, and

FIG. 4 shows an adhesive binder with a cover feed for the production of brochures with folded-in cover flaps.

Claims

1. A method for feeding a cover with a desired format height in the production of bound printed products having an inner part and a cover that is placed around the inner part and connected thereto, comprising: providing a roll of a wound-up cover web;unwinding the cover web;separating a cover sheet with the desired format height from the cover web;feeding the separated cover sheet to the inner part; andplacing the cover sheet around the inner part and connecting the cover sheet thereto.

2. The method according to claim 1, wherein the cover web is printed after it is unwound.

3. The method according to claim 1, wherein the unwound cover web is selectively pre-treated by means of at least one of coating, scoring, embossing, punching and/or perforating.

4. The method according to claim 1, wherein the cover has a desired width and the unwound cover web is reduced to the desired cover width by trimming the cover web along at least one longitudinal edge.

5. The method according to claim 1, wherein a supplement is applied on the unwound cover web.

6. The method according to claim 1, wherein a lining strip is glued along the unwound cover web.

7. The method according to claim 1, wherein cover flaps are folded in on one or both sides of the unwound cover web.

8. The method according to claim 1, wherein the cover web consists of two material webs that are unwound parallel to one another;both webs are folded; andthe two webs are flatly glued into a combined end sheet web with a lining strip while their folded edges face one another at a defined distance from one another.

9. The method according to claim 1, wherein the cover sheet is separated from the cover web shortly before it is combined with the inner part.

10. The method according to claim 1, wherein the cover sheets are separated from the cover web and fed to a buffer magazine in order to be intermediately stored; anda cover sheet is decollated from the magazine and fed to the inner part.

11. The method according to claim 1, wherein the method is performed in an adhesive binder for producing perfect-bound book blocks, brochures or magazines.

12. The method according to one of claim 1, wherein the method is performed in a gather-stitcher machine and the cover sheet is essentially folded centrally after separation from the cover web.

13. Apparatus for producing bound printed products having an inner part and a cover, comprising: a transport device for the inner part;a cover feed device for supplying the covers in a synchronous cycle with and placing each cover around an inner part;a roll of a wound-up cover web;an unwinding device between the roll and the feed device, for unwinding the cover web from the roll; anda cross cutter between the unwinding device and the feed device, for separating a cover sheet from the cover web for delivery to the feed device.

14. Apparatus according to claim 13, including a printing device arranged downstream of the unwinding device for printing the cover web on at least one side.

15. Apparatus according to claim 13, including a processing station arranged downstream of the unwinding device for performing at least one of coating, scoring, embossing, punching and/or perforating the cover web.

16. Apparatus according to claim 13, including a longitudinal trimming device arranged downstream of the unwinding device for trimming along at least one longitudinal edge of the cover web.

17. Apparatus according to claim 13, including a supplement glue-on station arranged downstream of the unwinding device for applying supplements on the cover web.

18. Apparatus according to claim 13, including a lining device arranged downstream of the unwinding device for gluing a lining strip on the cover web.

19. Apparatus according to claim 13, including a flap scoring and fold-in device arranged downstream of the unwinding device for producing folded-in cover flaps on at least one side of the cover web.

20. Apparatus according to claim 13, including a web splitter for dividing two parallel cover web portions that lie adjacent to one another;folding devices for folding the web portions; anda lining device for flatly gluing the two web portions into a combined end sheet web with a lining strip.

21. Apparatus according to claim 13, including a magazine buffer for the cover sheets arranged between the cross cutter and the cover feed device.

22. Apparatus according to claim 13, wherein the unwinding device, the cross cutter and the cover feed device are arranged on an adhesive binder with a transport device comprising a multitude of book block grippers that can be continuously moved along a closed loop and are interconnected with respect to their drive.