EP0615863B1 - Dispositif pour arrondir les dos de blocs de livres - Google Patents
Dispositif pour arrondir les dos de blocs de livres Download PDFInfo
- Publication number
- EP0615863B1 EP0615863B1 EP94102772A EP94102772A EP0615863B1 EP 0615863 B1 EP0615863 B1 EP 0615863B1 EP 94102772 A EP94102772 A EP 94102772A EP 94102772 A EP94102772 A EP 94102772A EP 0615863 B1 EP0615863 B1 EP 0615863B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rounding
- book block
- elements
- rolling
- actuating
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42C—BOOKBINDING
- B42C5/00—Preparing the edges or backs of leaves or signatures for binding
- B42C5/02—Preparing the edges or backs of leaves or signatures for binding by rounding or backing
Definitions
- the invention relates to a device for back rounding of book blocks a conveyor device that clamps the book block and a back-round device, consisting of round elements after the release of the book block through the conveyor on both sides of the book block act on a defined rotary movement and by pressure.
- the spine of the book block should be an arc or a receive flattened sheets, what for the subsequent operation pressing decisive with regard to the desired back profile of the book block is.
- the curve should correspond more to the circular arc, with the Degree of rounding is determined by the round coefficient, which is made up of the height of the back sheet and the book block thickness.
- the back shape is determined by various factors influences how contact pressure of the round rolls, angle of rotation of the round rolls and by the roller diameter.
- a round roller comes in the machines that work according to the roller round principle with a single roller diameter for all book block formats to use, which inevitably only partially meets the requirements can be.
- the desired arched back curvature can be can only be achieved if the roller diameter and book block thickness are coordinated are.
- the invention has for its object a device for back rounding to create book blocks of the type mentioned, in terms of quality improvement the desired one for all book block formats Back rounding ensures and with which the back shape can be designed variably leaves.
- any height Press forces on the book block act with the result of a much better rounding even with small book block formats. Furthermore, can by the use of different round radii optimally vary the round effect.
- the effective area of the round segments 2, 2 '; 3, 3 ' preferably in two rolling areas with different round radii R1 and R2 divided, which are used depending on the round characteristics.
- the round segments 2, 2 '; 3, 3 ' are each in a displaceable intermediate frame 8, 9 with a mirror-image arrangement of the round radii R1, R2 to one another stored by front tooth segments 10, 11 in racks 12, 13th of the intermediate frame 8, 9 engage and rear cams 14, 15 on rollers 16, 17 of the intermediate frame 8, 9 support.
- the Pitch circle radius of the tooth segments 10, 11 corresponds to the average round radius, which leads to the fact that the outer sheet of the book block 1 is exactly constant Height is maintained.
- the backdrop 22 is located on a shaft 25 which, as shown in the illustration on the left emerges in Figure 2, via a drive device 26 to 29 according to Arrow direction about an axis 30 executes an alternating rotary movement and thus an opposite movement of the round segments 2, 2 '; 3, 3 'in the support frame 20 generated in coordination with the vertical stroke.
- book block 1 is released by the round segments 2, 2 '; 3, 3 'as well as the takeover of a subsequent one rounding book blocks 1, which counteracts the tensile force of the spring Force component causes a defined distance between the round segments 2, 2 '; 3, 3 'from the sides of the book block 1.
- the back round device looks according to the second embodiment 1 round segments 40, 40 'on each page of the book block; 41, 41 'before, which roll on the book block pages and at the same time upwards move after the release of the book block 1 through the transport bracket 4.
- the vertical movement of the two round segments superimposed on the rotary movement 40, 40 ', 41, 41' the vertical movement of the book block 1 is compensated and thus the outer sheets or printed sheets of the book block 1 at a constant Level maintained.
- the hold caused by the compensation movement the book block 1 in the bracket 4 of the transport system in a defined Height position is important for the subsequent work process.
- round segments 40, 40 '; 41, 41 ' are different round radii R1, R2 provided, which are used according to the round characteristics, by round segments 41, 41 'as interchangeable parts with a larger radius Grip and attack over the round segments 40, 40 'with the smaller round radius these are releasably supported.
- the round segments 40, 40 '; 41, 41 ' are each in a mirror image arrangement between angled supports 43, 43 'rotatably mounted in the perpendicular Level on vertical guideways 44, 44 'to be moved.
- the opposite angled supports 43, 43 ' are on an in Machine frame 52 mounted shaft 53 mounted horizontally.
- the movement to open and close the round segments 40, 40 '; 41, 41 'in timing with their rotary movement is carried out by the main drive from a rotary cam 61 which has a drive lever 62 a control roller 63 actuated by a tension spring 64 is actuated.
- the drive lever 62 carries a pivot bearing 65, one on the two-armed Lever 56 articulated actuating rod 66 is penetrated, which is on Rotary bearing 65 by means of a compression spring 67 on the opposite side supports.
- the compression spring 67 can be more or less adjusted by means 68 compress and thus the pressing force between the round segments 40, 40 '; 41, 41 'vary.
- the cross member 48 connecting the angled supports 43, 43 ′ to one another is operated between an upper and lower end station, operated by one in the machine frame 52 rotatably mounted two-armed lever 69, one of which Lever arm carries a follower roller 73, which is in a circular groove curve 74 of the cam 61 runs and its other arm via a coupling rod 75 is articulatedly connected to the traverse 48.
- the pivot point of the drawbar can be adjusted via a link adjustment device 72 70 in an elongated hole 50 in the arm of the drive lever 47 in view vary on the different round radii.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Transmission Devices (AREA)
Claims (15)
- Dispositif pour arrondir le dos de corps douvrages (1), comportant un dispositif de serrage (4) du corps d
- Dispositif selon la revendication 1 caractérisé en ce que les éléments d
- Dispositif selon les revendications 1 ou 2 caractérisé en ce qu
- Dispositif selon la revendication 3 caractérisé en ce que le mouvement alternatif des éléments d
- Dispositif selon les revendications 1 à 4 caractérisé en ce que les rayons (R1, R2) des éléments d
- Dispositif selon les revendications 1 à 5 caractérisé en ce que les éléments d
- Dispositif selon les revendications 1 à 6 caractérisé en ce que les rayons d
- Dispositif pour arrondir le dos de corps d
- Dispositif selon la revendication 8 caractérisé en ce que les éléments d
- Dispositif selon la revendication 9 caractérisé en ce que la traverse (48) est entraínée par un levier à deux bras (69) par l
- Dispositif selon les revendications 9 ou 10 caractérisé en ce que le point d
- Dispositif selon les revendications 9 à 11 caractérisé en ce que le mouvement de commande des éléments d
- Dispositif selon les revendications 8 à 12 caractérisé en ce que le mouvement d
- Dispositif selon la revendication 13 caractérisé en ce que la tige d
- Dispositif pour arrondir le dos de corps d
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4308602 | 1993-03-18 | ||
DE4308602 | 1993-03-18 | ||
DE4330719A DE4330719A1 (de) | 1993-03-18 | 1993-09-10 | Vorrichtung zum Rückenrunden von Buchblocks |
DE4330719 | 1993-09-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0615863A1 EP0615863A1 (fr) | 1994-09-21 |
EP0615863B1 true EP0615863B1 (fr) | 1998-08-05 |
Family
ID=25924054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94102772A Expired - Lifetime EP0615863B1 (fr) | 1993-03-18 | 1994-02-24 | Dispositif pour arrondir les dos de blocs de livres |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0615863B1 (fr) |
JP (1) | JPH071863A (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6160052B2 (ja) * | 2012-09-28 | 2017-07-12 | 大日本印刷株式会社 | 丸み出し装置 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1536507A1 (de) * | 1967-02-01 | 1970-01-15 | Smyth Mfg Company | Vorrichtung zum intermittierenden Befoerdern von ungebundenen Buechern durch eine Runde- und Hinterklebemaschine |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4005949A1 (de) * | 1990-02-26 | 1991-08-29 | Kolbus Gmbh & Co Kg | Verfahren zum maschinellen abpressen von buchblocks und vorrichtung zur durchfuehrung des verfahrens |
DE4005948A1 (de) * | 1990-02-26 | 1991-08-29 | Kolbus Gmbh & Co Kg | Buchbindemaschine zum rueckenrunden von buchblocks |
-
1994
- 1994-02-24 EP EP94102772A patent/EP0615863B1/fr not_active Expired - Lifetime
- 1994-03-17 JP JP4706394A patent/JPH071863A/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1536507A1 (de) * | 1967-02-01 | 1970-01-15 | Smyth Mfg Company | Vorrichtung zum intermittierenden Befoerdern von ungebundenen Buechern durch eine Runde- und Hinterklebemaschine |
Also Published As
Publication number | Publication date |
---|---|
JPH071863A (ja) | 1995-01-06 |
EP0615863A1 (fr) | 1994-09-21 |
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