EP3053754B1 - Book binding machine - Google Patents

Description

The invention relates to a bookbinding machine according to the preamble of claim 1.

Such bookbinding machines, e.g. Perfect binders, used for the production of hard-bound booklets or book blocks for hard covers, wherein the folded sheets and / or single sheets are combined to form a book block by applying an adhesive to the previously processed block back. The possible binding methods and the product variants depend on the machine equipment. This consists essentially of the functional units book block transport system, book block insertion station, back processing, back gluing, intermediate drying, side gluing, back reinforcement, creating an envelope, press the envelope and dry.

The DE202005007012 U1 and disclosing the preamble of claim 1 US2003 / 0215309 A1 show such a bookbinding machine with a book block transport system. The book block transport system consists of conveyors running around deflection wheels and a plurality of staples clamped in a same spaced mutual distance thereon for clamping sheet stacks.

According to the prior art, preferably roller chains with individually movable interlocking members are used as conveying means. The chains serve to drive the brackets. However, the slabs are guided by guideways firmly connected to the machine frame of the bookbinding machine. For this purpose, each bracket has a plurality of rollers, which roll on the running surface of the guideway.

From the US7918635 B2 An adhesive binder is known in which the transport system comprises a plurality of staples, which are guided individually driven on a guideway. For this purpose, the brackets are attached to carriage, the Have roles that run on the guideway. The previously known guideways have straight and curved sections, which are connected by assembly or welding together and then form a closed uniform guideway.

The known carriages have four fixedly arranged guide rollers. This restricts the design possibilities of the guideways. It is only a fixed radius possible and in addition the guide rollers have the transition from the straight to the curved section play to the guideway and are thus not exactly guided.

In another known embodiment, the carriages on four guide rollers, which are arranged in pairs opposite one another on each a turntable. In this embodiment, the design options of the guideway are greater, so that, for example, S-curves can be used for the guideway. However, the production of the carriages is technically complicated and expensive.

Object of the present invention is to provide an alternative transport system, which is technically simple and inexpensive to produce and ensures good guidance of the carriage.

This object is achieved according to the invention by the features of claim 1.

According to the invention, the book binding machine for the production of printed products, such as books, magazines and brochures on several processing stations. These include, for example, a book block insertion station, a spine processing station, a glue application station, a cover feeder and a pressing station. Depending on the product to be produced, even more processing stations are possible. The book blocks are transported by a book block transport system through the individual processing stations. The book block transport system has a closed guideway with straight, circular arc and curve-shaped sections on. Furthermore, the book block transport system has brackets for clamping the book blocks. The brackets have guide carriages with guide rollers which roll on the guideway. The brackets are this driven either together or individually via a drive.

In the solution according to the invention, the guide carriages have two fixed outer guide rollers which run on a master track forming the outer track of the guide track and two stationary inner guide rollers which run on a slave track. The distance between the two inner guide rollers to each other is less than the distance between the two outer guide rollers to each other.

In one embodiment of the solution according to the invention, the two fixed, inner guide rollers run on a slave path resulting according to mathematical-geometric laws. In a further embodiment of the solution according to the invention, the master track and / or the slave track can consist of rectilinear, arcuate and curved track-shaped sections. Also in this solution, the carriages are advantageously coupled to at least one drive, which is arranged outside the track.

According to an advantageous solution, the two fixed outer guide rollers are attached to the carriage and the master track can consist of rectilinear, circular arc-shaped and curved track-shaped sections. In addition, the two fixed, inner guide rollers are attached to the carriage and run on a resulting from mathematical-geometric laws slave lane of the guideway, which may also consist of rectilinear, circular arc and curve-shaped sections. The carriages are also coupled to at least one drive which is arranged outside the guideway. This ensures that the guide rollers rest against the guide track without play. In addition, the loading situation for the inner guide rollers is significantly improved, in particular on the rectilinear and arcuate sections, since the load is borne by two guide rollers.

In a further embodiment of the solution according to the invention, the outer guide rollers and the inner guide rollers are fastened approximately triangularly on the carriage.

In a further embodiment, only one of the inner guide rollers is in contact with the slave track in the curved track-shaped sections.

In a preferred embodiment, the mathematical-geometric law is dependent on the position of the guide rollers relative to one another, as well as on the contour of the master track.

In a further preferred embodiment, the mathematical-geometric law is dependent on the position of the guide rollers resting on the guide track relative to each other, as well as on the contour of the master track.

In a further advantageous embodiment, the guideway forms an oval or a triangle or a rectangle, in particular a square with straight and curved sections.

Figur 1

einen Klebebinder in einer Übersichtsdarstellung,

Figur 2

ein Buchblocktransportsystem gemäss Stand der Technik,

Figur 3

ein beispielhaftes Buchblocktransportsystem,

Figur 4

ein weiteres beispielhaftes Buchblocktransportsystem mit innerer Master-Bahn,

Figur 5

ein zur Fig. 4 alternatives Buchblocktransportsystem mit äusserer Master-Bahn,

Figur 6

ein Buchblocktransportsystem nach Figur 4 mit Darstellung der Mittelpunktsbahnen der Führungsrollen,

Figur 7

ein Buchblocktransportsystem einer erfindungsgemässen Buchbindemaschine mit zwei äusseren und zwei inneren Führungsrollen sowie einer äusseren Master-Bahn und einer inneren Slave-Bahn.

The invention will be explained below with reference to various embodiments. Show it:

FIG. 1

an adhesive binder in an overview,

FIG. 2

a book block transport system according to the prior art,

FIG. 3

an exemplary book block transport system,

FIG. 4

another exemplary book block transport system with inner master web,

FIG. 5

one to Fig. 4 alternative book block transport system with outer master track,

FIG. 6

a book block transport system behind FIG. 4 with representation of the center point tracks of the guide rollers,

FIG. 7

a book block transport system of a bookbinding machine according to the invention with two outer and two inner guide rollers and an outer master track and an inner slave track.

Fig. 1 shows a section of a bookbinding machine 1000 with a part of the associated book block transport system 1050, which by a in FIG. 2 shown, driven circulating chain with clips 1002 attached thereto is formed. The drive of the circulating chain via a drive motor 13, for example, by a servo motor. Book blocks 100 are fed from a collator 1010 in the transport direction T of the bookbinding machine 1000. The book blocks 100 are grasped by staples 1002 and transported to a first processing station, a back processing station 1020. The spine processing station 1020 may have a plurality of processing tools, not shown. The book block 100 processed on its back is further transported to a glue application station 1030 and provided with adhesive. In a subsequent Fälzelstation 1040 optionally a Fälzel can be applied. In an apparatus for applying and fixing the envelope 1080, envelopes 101 fed from an envelope feeding station 1070 are applied to the book blocks 100 and fixed and pressed in the envelope pressing apparatus 1085 and joined together. Subsequently, the book blocks 100 are further transported by a cooling section 1060 to a trimming station 1090 (not shown in detail).

Fig. 2 The book block transport system 1050 of FIG FIG. 1 The book block transport system 1050 consists of several book block clamps 1002 which are each attached to guide carriages 2. The carriages 2 have a base plate 6 on which guide rollers 1, 1a are mounted, which roll on a guide track 4 ( FIG. 3 ). The book block gongs 1002 (of which in FIG. 2 For the sake of clarity, only three are shown) are attached to each other at a same mutual distance via a coupling 12 on a drive chain 5. The drive chain 5 is guided over sprockets 3, one of which is driven by a drive motor 13. Due to the connection of the staples 1002 to the drive chain 5, the staples 1002, and thus the book block 100 clamped in the staples, are moved along the guide track 4 in the transport direction T from one processing station to the next (1020, 1030, 1040, 1070, 1080, 1085, 1090 ).

Fig. 3 shows an example of the structure of a book block transport system. Since it essentially depends on the leadership of the carriage 2, was in this FIG. 3 on the representation of Buchblockklammem 1002, and the drive system (3, 5, 13) waived. The guideway 4 consists of rectilinear sections 7, curved track-shaped sections 8 and circular arc-shaped sections 9. The carriages 2 have a base plate 6 on which the guide rollers 1, 1 a are fixed. The three guide rollers 1, 1a are arranged on the base plate 6 in a triangle such that two rollers 1 run either on the outer or inner track of the guide track 4 and the single, opposite guide roller 1a on the respective other track. The track on which the two rollers 1 run is the master track 10. By establishing the constraint that the rollers 1 and the roller 1a always have contact with the track, the result for the slave track 11 on which the roller 1a The mathematical course of the slave lane 11 depends on the distance between the inner lane and the outer lane, the position of the three guide rollers 1, 1a relative to one another and the radius of the master lane. Lane 10. The course of the master lane 10 and the course of the calculated slave lane 11 can be converted into an NC program for mechanical processing. The complete guideway 4 can then be manufactured in one clamping, so that a one-piece guideway 4 is formed with very tight tolerances in all areas of the track. This results in an advantageous manner, a simple and inexpensive construction of guideway 4 and carriage 2. Furthermore, there is an almost backlash-free run of the carriage 2 on the entire guideway 4. Furthermore, good force and snapshots arise through the arranged in a triangle guide rollers 1, 1a.

FIG. 4 shows by way of example a guide track 4, in which the master track 10 is the inner track, and the calculated slave track 11 forms the outer track of the guide track 4. The FIG. 5 shows an alternative solution of the guideway 4, in which the master track 10 is the outer track, and the calculated slave track 11, the inner track of the guideway 4 forms.

1. 1. Punkt P_1n(x1n;y1n) liegt auf einer die Master - Bahn beschreibenden Funktion (Gerade, Kreis, Kreisbogen, Polynom...) f(X;Y_Master-Bahn). Am Punkt P1 befindet sich der Ausgangspunkt mit einer Schrittweite von Delta s_n.
2. 2. Punkt P_2n(x2n;y2n) liegt auch auf der die Master - Bahn beschreibenden Funktion f(X;Y_Master-Bahn) im Abstand von l₂. D.h. der Schnittpunkt einer die Kreisbahn beschreibenden Funktion um den Punkt P₁ mit dem Radius l₂ (l₂ ²= x_1n ²+y_1n ²) mit f(X;Y_Master-Bahn) liefert eine sinnvolle Lösung für P_2n(_x2n;y2n).
3. 3. Durch die Punkte P_1n(x1n;y1n) und P_2n(_x2n;y2n) geht eine Gerade g_n mit dem Anstieg m_n=(y_2n-y_1n)/x_2n-x_1n). Der arctan(m_n) entspricht dem Winkel zwischen g_n und der y - Achse des Bezugskoordinatensystems.
4. 4. Die Abstände der Führungsrollen oder der Punkte P_1nP_3n =l₃ und P_1nP_2n = l₁ und P_2nP_3n =l₂ sind konstruktiv festgelegt und damit bekannt. Damit lässt sich der Winkel (ϕ) zwischen P_1nP_2n (g_n) und P_1nP_3n über cos(ϕ)=(l₃ ²+l₂ ²-l₁ ²)/2*l_3*l₂ bestimmen. Die Koordinaten des Punktes P_3n(x3n;y3n) lassen sich dann wie folgt ermitteln: $${\mathrm{x}}_{3\mathrm{n}}={\mathrm{<figure-callout\; id="3"\; label="l"\; filenames="imgf0002.png"\; state="\{\{state\}\}">l</figure-callout>}}_3*\cos \left(\mathrm{\varphi }+\arctan \left(\mathrm{mn}\right)\right){\mathrm{und\; y}}_{3\mathrm{n}}={\mathrm{<figure-callout\; id="3"\; label="l"\; filenames="imgf0002.png"\; state="\{\{state\}\}">l</figure-callout>}}_3*\sin \left(\mathrm{\varphi }+\arctan \left({\mathrm{m}}_{\mathrm{n}}\right)\right)$$
   
5. 5. Durch Verschieben des Punktes P1 mit der Schrittweite Delta s erhält man Punktreihen P₁₁;P₁₂...P_1n, welche sich auf der Funktion f(X;Y_Master-Bahn) befinden und P₃₁;P₃₂...P_3n, welche die Funktion f(X;Y_slave-Bahn) bilden.
6. 6. Die eigentliche Führungsbahn ist eine Äquidistante der beiden Funktionen, welche von der Wahl der Durchmesser der Führungsrollen abhängt.
7. 7. CNC - Postprozessoren interpolieren die Punktereihen mit Geraden und Radien derart, dass sich die so erzeugte Fräsbahn im Rahmen der vorgegebenen Toleranzfelder bewegt. Je kleiner diese Toleranzfelder gehalten werden können, umso weniger Spiel hat der Führungswagen mit drei feststehenden Führungsrollen auf der beschriebenen Führungsbahn.

In FIG. 6 is exemplary according to the embodiment according to FIG. 4 the course of the master track and the calculated slave track is shown. The mathematical determination of the slave path results from the following steps:

1. 1. Point P _{1n (x1n; y1n)} lies on a function describing the master path (straight line, circle, circular arc, polynomial ...) f (X; Y _{master path} ). At point P1 is the starting point with a step size of delta s _n .
2. 2. Point P _{2n (x2n; y2n) also} lies on the function f (X; Y _{master path} ) describing the _{master path} at a distance of l ₂ . That is, the point of intersection of a function describing the circular path around the point P ₁ with the radius l ₂ (l ₂ ² = x _1n ² + y _1n ² ) with f (X; Y _{master path} ) provides a reasonable solution for P _2n ( _{x2n y2n} ).
3. 3. By the points P _{1n (x1n; y1n} ) and P _2n ( _{x2n; y2n} ) a straight line g _n with the slope m _n = (y _2n -y _1n ) / x _2n -x _1n ). The arctan (m _n ) corresponds to the angle between g _n and the y axis of the reference coordinate system.
4. 4. The distances between the guide rollers or the points P _1n P _3n = l ₃ and P _1n P _2n = l ₁ and P _2n P _3n = l ₂ are structurally determined and thus known. Thus, the angle (φ) between P _1n P _2n (g _n ) and P _1n P _{3n can be determined} via cos (φ) = (l ₃ ² + l ₂ ² -l ₁ ² ) / 2 * l _{3 *} l ₂ , The coordinates of the point P _{3n (x3n; y3n)} can then be determined as follows: $${\mathrm{x}}_{3\mathrm{n}}={\mathrm{<figure-callout\; id="3"\; label="l"\; filenames="imgf0002.png"\; state="\{\{state\}\}">l</figure-callout>}}_3*\cos \left(\mathrm{\phi }+\arctan \left(\mathrm{mn}\right)\right){\mathrm{and\; <figure-callout\; id="3"\; label="y"\; filenames="imgf0002.png"\; state="\{\{state\}\}">y</figure-callout>}}_{3\mathrm{n}}={\mathrm{<figure-callout\; id="3"\; label="l"\; filenames="imgf0002.png"\; state="\{\{state\}\}">l</figure-callout>}}_3*\sin \left(\mathrm{\phi }+\arctan \left({\mathrm{m}}_{\mathrm{n}}\right)\right)$$
   
5. 5. By shifting the point P1 with the step size delta s one obtains point rows P ₁₁ , P ₁₂ ... P _1n , which are located on the function f (X; Y _{master track} ) and P ₃₁ ; P ₃₂ ... P _3n , which form the function f (X; Y _{slave path} ).
6. 6. The actual guideway is an equidistant of the two functions, which depends on the choice of the diameter of the guide rollers.
7. 7. CNC - Postprocessors interpolate the rows of points with straight lines and radii in such a way that the milling path thus created moves within the given tolerance ranges. The smaller these tolerance fields can be held, the less play the carriage has with three fixed guide rollers on the described track.

In principle, there are also other mathematical methods to determine the course of the slave lane.

In the FIGS. 2 to 5 Any tracks 4 were shown. However, it is also possible to produce special geometric guideways from straight and curved sections, which then essentially form an oval, or a triangle, or a rectangle, in particular a square.

1

Führungsrollen für Master-Bahn

1a

Führungsrollen für Slave-Bahn

2

Führungswagen

3

Kettenrad

4

Führungsbahn

5

Antriebskette

6

Grundplatte

7

geradliniges Teilstück

8

kurvenbahnförmige Teilstücke

9

kreisbogenförmiges Teilstück

10

Master-Bahn

11

Slave-Bahn

12

Koppel

13

Antriebsmotor

14

Mittelpunktsbahn der auf der Master-Bahn laufenden Führungsrollen

15

Mittelpunktsbahn der auf der Slave-Bahn laufenden dritten Rolle

100

Buchblock

101

Umschlag

1000

Buchbindemaschine

1002

Buchblockklammer

1010

Position Zusammentragmaschine

1020

Position Rückenbearbeitungsstation

1030

Position Leimauftragsstation

1040

Position Fälzelstation

1050

Buchblocktransportsystem

1060

Position Kühlstrecke

1070

Position Umschlagzuführstation

1080

Position Umschlaganlegestation

1085

Position Umschlaganpressstation

1090

Position Beschnittstation

T

Transportrichtung

P₁, P₂, P₃

Mittelpunkte der Führungsrollen

P_1n, P_2n

Punkte auf der Master-Bahn

P_3n

berechneter Koordinationspunkt auf der Slave-Bahn

g_n

Gerade

FIG. 7 shows an embodiment of the book block transport system of a bookbinding machine according to the invention. The carriages 2 are equipped with four fixed rollers 1, 1a. The master web 10 is the outer web; on this run the outer guide rollers 1. The slave track 11 is the inner track; on this run the inner guide rollers 1a. The inner guide rollers 1a are positioned as close as possible to each other. The distance between the two outer guide rollers 1 to one another is substantially greater than the distance between the two inner guide rollers 1a, whereby an approximately triangular structure of the rollers is formed to each other. This embodiment has all the advantages of the above-described solutions with three fixed guide rollers 1, 1a, but always four guide rollers 1, 1a lie on the guide track 4 on the rectilinear and arcuate sections, which significantly improves the load on the inner guide rollers 1a. For this embodiment, only concave guideway geometries are possible and the master lane 10 must be the outer lane. Unlike a solution with three guide rollers 1, 1a, only one of the inner rollers 1a has contact with the slave track in the transition region from the straight section to the circular section, that is to say in the curved section.

1

Guide rollers for master track

1a

Guide rollers for slave web

2

carriages

3

Sprocket

4

guideway

5

drive chain

6

baseplate

7

rectilinear section

8th

curve-shaped sections

9

arcuate section

10

Master-Bahn

11

Slave web

12

paddock

13

drive motor

14

Center-point track of the guide rollers running on the master track

15

Center point track of the third roller running on the slave track

100

book block

101

envelope

1000

Bookbinding machine

1002

Book block clamp

1010

Position gathering machine

1020

Position back processing station

1030

Position of glue application station

1040

Position Fälzelstation

1050

Book block transport system

1060

Position cooling section

1070

Position envelope feed station

1080

Position handling station

1085

Position envelope press station

1090

Position trim station

T

transport direction

P ₁ , P ₂ , P ₃

Centers of leadership roles

P _1n , P _2n

Points on the master course

P _3n

calculated coordination point on the slave lane

g _n

Just

Claims (10)

1. Bookbinding machine (1000) for producing printed products such as books, magazines and brochures, having a plurality of processing stations, such as, for example, book block insertion station, spine processing station, glue application station, cover feeder and press station, and having a book block transport system, which transports the book blocks (100) through the individual processing stations, the book block transport system having a closed guide track (4) having straight (7), arcuate (9) and curved-path (8) sections and clamps (1002) for clamping the book blocks, the clamps (1002) having guide carriages (2) with guide rollers (1, 1a) which roll on the guide track (4), and the clamps (1002) being driven jointly or individually via a drive, characterized in that the guide carriages (2) have two fixed outer guide rollers (1), which run on a master track (10) forming the outer track of the guide track (4), and have two fixed inner guide rollers (1a), which run on a slave track (11), wherein the distance of the two inner guide rollers (1a) from each other is smaller than the distance of the two outer guide rollers (1) from each other.
2. Bookbinding machine (1000) according to Claim 1, characterized in that the two fixed inner guide rollers (1a) run on a slave track (11) that results from mathematical geometric laws.
3. Bookbinding machine (1000) according to Claim 1 or 2, characterized in that the master track (10) and/or the slave track (11) can be composed of straight (7), arcuate (9) and curved-path (8) sections.
4. Bookbinding machine (1000) according to one of Claims 1 to 3, characterized in that the guide carriages (2) are coupled to at least one drive (3, 5, 12, 13), which is arranged outside the guide track (4).
5. Bookbinding machine (1000) according to Claim 1, characterized in that the two fixed outer guide rollers (1) are fixed to the guide carriage (2) and the master track (10) can be composed of straight (7), arcuate (9) and curved-path (8) sections, and in that the two fixed inner guide rollers (1a) are fixed to the guide carriage (2) and run on a slave track (11) resulting from mathematical geometric laws, which can likewise be composed of straight (7), arcuate (9) and curved-path (8) sections, wherein the guide carriages (2) are coupled to at least one drive (3, 5, 12, 13), which is arranged outside the guide track (4).
6. Bookbinding machine (1000) according to one of the preceding claims, characterized in that the outer guide rollers (1) and the inner guide rollers (1a) are fixed approximately triangularly to the guide carriage (2).
7. Bookbinding machine (1000) according to one of the preceding claims, characterized in that in the curved-path sections (8) of the guide track (4), only one of the inner guide rollers (1a) is in contact with the slave track (11).
8. Bookbinding machine (1000) according to one of the preceding claims, characterized in that the mathematical geometric law depends on the position of the guide rollers (1, 1a) relative to one another and the contour of the master track (10).
9. Bookbinding machine (1000) according to one of the preceding claims, characterized in that the mathematical geometric law depends on the position of the two outer guide rollers (1) relative to each other and also the two inner guide rollers (1a) in contact with the slave track (11), and the contour of the master track (10).
10. Bookbinding machine (1000) according to one of the preceding claims, characterized in that the guide track (4) is composed of straight (7) and curved (8) sections, which form an oval or a triangle or a rectangle, in particular a square.

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