JPS62259966A - Connecting quadruple bending machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a buckle plate bending unit for first bending (parallel bending) and a buckle plate bending unit for second bending (cross bending) arranged on the rear side in the feeding direction of the sheet. two knife bending units for a third bending which can be carried out in the manner of book binding bending or newspaper bending; and two knife bending units removably attached after said bending units in a direction perpendicular to the sheet feeding direction. The fourth turn, which can be done like a British or German fourth turn, is arranged
and a knife bending unit for the bending of.

Such a combined quadruple folding machine is described in West German Published Patent Application No. 271
No. 9784 (see especially FIG. 4). The known quadruple folding machine has a knife folding unit for the fourth fold, which is located in the alignment plane and is mounted on the frame of the machine rotatably about an axis parallel to the feeding direction of the sheet. It has one that can be locked in two positions pivoted to each other, acting from the bottom up or acting from the top down. When viewed from the sheet feeding direction, the quadruple folding unit can be placed on the left after the triple folding unit to obtain a book binding fold, or it can be placed on the right after the triple folding unit to obtain a newspaper fold. I can bring it. In either of these two positions the knife can pivot 180°, acting from below upwards or from above downwards.

In known quadruple bending machines, quadruple bending of all bases can be obtained. namely, the British quadruple fold (the quadruple fold unit is rear left, the knife points downward from the top), the international quadruple fold (the quadruple fold unit is rear left, the knife points upward from the bottom), and the German 241 fold. (Quadruple folding unit rear right, knife pointing upwards from below).Although the known quadruple folding machine can thus be widely employed, in many applications, especially in bookbinding, the required pivoting mechanism is The quadruple folding unit is therefore relatively complex and therefore expensive;
It is also difficult to operate due to the large number of possible adjustments and, therefore, the possibility of operator error, and precise temporal control of the quadruple bending unit must be carried out by means of a trouble-prone cardan shaft. It has the following drawback.

The present invention consists of a simpler quad folding machine of the type mentioned at the outset, which is easier to operate and less troublesome, particularly suitable for bookbinding, and in which the quad fold unit can be simply replaced. Just from the British quadruple to the German quadruple,
It is based on the problem of providing something that can be switched or vice versa, and that this can be done with a minimum of installation time.

This problem is solved in the combined quadruple folding machine according to the invention of the type mentioned at the outset, in which the folding unit for the fourth fold is removably fixed at right angles to the feeding direction of the sheet;
The solution is to be lockable in two positions and have a single delivery means for both positions of the folding unit.

By removably fixing the knife of the folding unit for the fourth bend at right angles to the sheet feeding direction and locking it in two positions, the structure is very simple and trouble-free. In an embodiment, the knife bending unit for the fourth bend can be installed such that a single knife always faces the same side, and its drive can be fixed, i.e. by removing the entire bending unit. becomes unnecessary. As a result, the quadruple folding unit as a whole is simpler, cleaner, easier to operate and less trouble-prone. Nevertheless, with a few manual operations it is possible to switch the quadruple folding machine of the invention from English to German style or vice versa.

It is simple to remove the quadruple folding unit and the knife in order to switch to a particular other quadruple folding type, and therefore the number of possible errors is reduced from the outset. is significantly reduced.

A single dispensing means is provided on the same side of the machine for both positions of the folding unit for the fourth bend, so that the operator can: There is no need to move its position when switching or vice versa, and according to the invention the combined quadruple folding device is further simplified considerably. This is due to the structure disclosed in DE-A-2719784, i.e. the dispensing means must necessarily change from right to left or from left to right due to the pivoting of the structural unit that supports the knife. This is a significant advantage over the structure.

Preferred embodiments of the quadruple folding machine according to the invention are characterized by the features of the dependent claims.

Once the paper sheet is delivered in the direction E, it passes into a buckling plate folding plate formed from a folding roller 1 and a buckle plate 2 for parallel bending, on the output side of which there are transport rollers and cutting or perforating means 15. At the outlet A for the bent sheet a knife shut or output shaft with .16 is provided, a rigid frame bridge 5 extending between and fixed to the side walls 3. Or, it is arranged like a plate and forms the rear wall of the upper part of the frame. Fixed to the frame bridge 5 is a cantilever 6 carrying a knife folding unit 7 for cross folding, 8 for book binding triple folding and 9 for newspaper triple folding.

The knife bending unit 7.8.9 is sheet-controlled by a light barrier and is driven by at least one electric motor 17, with transmission means and not shown for transmitting time-synchronized movements to the knives, bending rollers, conveyor belt and guide rollers. Electronic control means are provided.

The machine is provided with means known per se for dispensing the sheet after a parallel fold, a cross fold or two selectable third folds. These known means also include:
Contains conveying means for feeding the sheet further after each turn.

That is, for example, triple folding knife folding unit 8.9
Below the folding roller 11 is arranged, the zero folding roller 11 sends the third folded sheet to the transport roller 12, from where it is fed by the guide plate 13 to the conveyor belt 31 and via the conveyor belt 31 to the third folded sheet. The trifold sheet or the quadruple diffraction unit 25 (FIG. 1) is fed.

The quadruple folding unit 25 lies between the side walls 3.4 of the machine frame and the side walls 28 of the zero folding unit 25 are mounted on circular crossbeams 26 by means of ball bushing guides 34.
．． 29 has a nose 27 which presses against a crossbeam 30 which is also fixedly mounted on the side wall 3.4. In this way,
The bending unit 25 can be easily removed as a whole perpendicular to the sheet feeding direction E by removing the clamp screw 41 (FIG. 3), and can be locked in a desired position by tightening the clamp screw 41. .

A knife 36 (FIG. 1) of the quadruple bending unit 25 is fixed to the frame bridge 5 via a cantilever 35. For this purpose, a knife carrier 37 (FIGS. 3 and 4) is provided on the cantilever 35 in the form of a strain-free plate with a dovetail guide 38. guide 38
A knife 36 with its knife clamp holder 39 is guided therein in a clampable manner. The knife holder 39 has a corresponding dovetail (FIG. 1).

The knife 36 is driven by a drive 40 in both knife movement planes, whether arranged in the folding unit 25 or in the rear right newspaper folding unit 9 or in the rear left book binding folding unit 8.

In order to move the quad fold unit 25 from right to left, i.e. to convert from a German quad to a British quad or vice versa, all that is required is a knife clamp holder 39.
Just release it from the dovetail guide 38 and clamp screw 41. The bending unit 25 can then be fixedly clamped again on the circular crossbeam 26 and the knife 36 by means of the clamp holder 39 on the dovetail guide 38 in its new position.

The lower exit belt 42 (FIGS. 1 and 3) is connected to the roller 4
3 by the bending unit 25, while
The conveyor belt 31 and the folding roller 32 are driven by the machine body by a shaft 33 via a shift sleeve.

A frame 44 is fixed in the machine frame, in which guide rollers 45 for the lower exit belt 42 are fixed.
．． 46 is fixedly mounted. The loop guide of the exit belt 42 rotates a guide roller 45 fixedly mounted in the frame 44 and a guide roller 47 mounted in the bending unit 25. When the loop guide unit 25 is removed, the drive roller 43 (third
and FIG. 4), allowing completely independent driving of the dispensing means 10 regardless of whether the bending unit 25 is on the left or the right.

In the German quadruple fold, if the crystallization unit 25 is located in the right rear interfold unit 9, an upper belt 48 (FIG. 3) is also required for distribution, and the upper belt 48 (FIG. 3) is placed in.

It lies on the lower distribution belt 42. Clamp holder 5
0, the upper frame 49 is held between the lower frame 44. In the British style quadruple bend, the first bend unit 25 is on the left (
4), and the upper belt 48 is not required.

[Brief explanation of drawings]

FIG. 1 is a partial side view of an embodiment of a coupled quadruple folding machine according to the present invention. 2 is a plan view of the machine of FIG. 1, in which a knife bending unit for the fourth bend is arranged on the right side, viewed from the sheet feeding direction, for forming, for example, a German fourth bend; FIG. 1 is a rear view of the machine shown in FIGS. 1 and 2. FIG. 4 is a rear view of the same machine in which the knife folding unit for the fourth fold is arranged on the left side as viewed from the sheet feeding direction so as to result in an English fourth fold. 3・Meeting・Side wall, 5Φ・・Frame bridge, 6・・Cantilever/<-, 25・・・Kikaku folding unit/ ), 35−・
Cantilever, 36 Knife, 37 Knife moving body, 38 Guide, 39 Clamp holder, 42 Lower exit belt, 45.47 Guide roller.

Claims (7)

[Claims] (1) A buckle plate bending unit for the first bending, a knife bending unit arranged on the rear side in the sheet feeding direction for the second bending (cross bending), and a book binding bending or newspaper bending unit. two knife folding units for a third fold, which can be carried out as follows, and a fourth fold, either British or German, removably arranged after said folding units in a direction perpendicular to the sheet feeding direction. and a knife bending unit for the fourth bend, which can be carried out in a combined quadruple bending machine,
The knife (36) of the bending unit (25) for the fourth bend
) is removably fixed at right angles to the sheet feeding direction (E) and lockable in two positions, the bending machine having a single bending unit (25) for both positions of the bending unit (25). A quadruple bending machine characterized by having. (2) The knife (36) of the bending unit (25) is removably attached by a clamp holder (39) on the knife moving body (37). Quadruple bending machine. (3) The knife moving body (37) has a dovetail guide (38), and the clamp holder (39) has a corresponding dovetail groove in which the guide (38) engages. A quadruple bending machine according to scope 2. (4) The knife moving body (37) has a frame bridge (5
) A quadruple bending machine according to any one of claims 1 to 3, which is arranged on a cantilever (35) fixed to a cantilever (35). (5) The cantilever (35) and the cantilever (6) for the knife holder of the bending unit for the second and third bends are mounted in conjunction on the same frame bridge (5). The quadruple folding machine according to item 4. (6) Quadruple folding machine according to any one of claims 1 to 5, wherein the distribution means (10) are arranged in or immediately after the side wall (3) of the machine frame. (7) the lower outlet belt (42) of the distribution means (10) has a loop guide formed by guide rollers (45, 47); Quadruple bending machine.