JP2556511B2 - Concatenated quadruple folding machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is arranged on a rear side in a sheet feeding direction for a buckle plate bending unit for a first bending (parallel bending) and a second bending (cross bending). Knife folding unit, two knife folding units for the third folding functioning as book binding folding or newspaper folding, and arranged reciprocally in the direction transverse to the sheet feeding direction after the third folding unit. And a knife folding unit for a fourth bend functioning to make a British or German fourth bend, and a quadruple folding machine.

The unmodified connection-type quadruple folding machine, which is the prior art of the connection-type quadruple folding machine of the present invention, is disclosed in West German Published Patent Specification No.
It is known by No. 4 (see especially Figure 4). Known interlocking quadruple folding machines include one knife folding unit for making a fourth folding, the folding unit comprising:
It is mounted on the machine frame so as to rotate in a vertical plane about an axis provided in the alignment plane and to be parallel to the sheet feeding direction. The folding unit can be locked in two positions which can be pivoted and moved in a vertical plane, in one of which the folding knife acts from bottom to top and in the other position conversely to the top. It works from downward. This fourth bending unit is provided either at the rear left hand of the third bending unit for performing the main binding bending or the rear right hand of the third bending unit for performing the newspaper bending when viewed from the sheet feeding direction. In these two positions, the folding knife can in each case rotate 180 degrees in the vertical plane, so that the knife acts from bottom to top or top to bottom. You can In this known connection type quadruple folding machine, all types of quadruple folding modes can be achieved. English quadruple fold (quadruple fold unit rear left hand, knife top to bottom), international quadruple fold (quadruple bend unit rear left hand, knife from bottom to top), and German quadruple fold (The quadruple folding unit is in the rear right hand, the knife is from top to bottom). The known quadruple fold can thus be adopted in such a wide range, but in many applications, especially in bookbinding, the turning mechanism required by the fourth fold unit is rather complicated and expensive. In addition, it is difficult to operate because it has a wide variety of adjustments to be made, and as a result,
There is also a drawback that it is easy for operator errors in the future.
There is also the disadvantage that in order to operate the quadruple folding unit at precise time intervals, it must be carried out by a trouble-prone telescope type cardan shaft.

The present invention is a simpler concatenated quadruple folding machine of the type described at the beginning, which is easier to operate, less prone to troubles, especially suitable for bookbinding, and for moving the fourth folding unit. It was made based on the problem of providing the one that can switch from the English quadruple fold to the German quadruple fold, or vice versa, and can switch this setting in the shortest time. is there.

According to the present invention, a bending unit for performing a fourth bending according to the first aspect of the present invention is mounted so as to be able to reciprocate across a sheet feeding direction, and the bending unit is provided in the transverse direction. It is solved by being able to lock in two desired positions along, and by providing sheet transfer means for transferring sheets from the fourth folding unit in both said locked positions.

The knife of the folding unit for the fourth folding is reciprocally movable in a direction transverse to the sheet feeding direction, and
By installing it in a structurally extremely simple and trouble-free manner so that it can be locked in one position, a knife folding unit for the fourth bending can always be actuated from the same side by a single knife. The knife can be driven in a fixed drive mode, that is, it is unnecessary to remove and move the entire folding unit. As a result, the fourth bending unit is not only trouble-free, but also
As a whole, it is possible to configure the system in a simpler and more straightforward manner and easier to operate. Nevertheless, the quadruple folding machine of the present invention is capable of switching the folding mode from English type to German type or vice versa with a slight manual operation.
To switch to another particular quadruple fold,
Since the folding unit and its knife only have to be moved to a position where other quadruple folding aspects are obtained, the operation performed by the operator is simple and therefore the number of possible errors is greatly reduced from the beginning. .

In said two locking positions for performing a fourth folding, a single transfer means for transferring a folded sheet from said fourth folding unit is provided on one and the same side of the machine, Even after the worker has switched from the English-style fourth bending mode to the German-type fourth bending mode,
Operation of the articulated quadruple folding machine of the present invention is made even easier in that there is no need to change their working position.

This is an advantage provided by the connection type quadruple folding machine of the present invention as compared with the structure disclosed in West German Published Patent Specification No. 27 19 784. That is, in the one described in the above-mentioned published patent specification, since the structural unit carrying the knife rotates, the position of the sheet transfer means inevitably changes from right to left or from left to right. is there.

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

Prior to the description of the embodiments, the principle of "knife bending unit" and "buckle plate bending unit", which are basic components of a general connecting quadruple folding machine, will be first described with reference to FIG. 6 and 7, the definition of each bending mode referred to in the present invention will be described.

First, FIGS. 5A and 5B show a “knife bending unit” and a “buckle plate bending unit”, respectively.

In the knife bending unit shown in FIG. 5 (a), at the moment when the leading edge of the sheet fed in the direction of the arrow comes into contact with the stopper set at the desired position, the bending knife at the upper side descends to grasp and feed the sheet downward. A fold line is formed by feeding the fold line between a pair of folding rollers that rotate in a vertical direction. This unit is inferior in productivity because it depends on the raising and lowering movement of the folding knife, but has a characteristic that it operates reliably and is not so affected by the material of the sheet. On the other hand, in the buckle plate bending unit shown in FIG. 5 (b), the sheet is fed into the buckle plate also provided with the stopper, and the loop formed by bending after the sheet comes into contact with the stopper automatically forms a pair. The folds are formed by being fed between the folding rollers. This type has high productivity because it does not depend on the raising and lowering of the folding knife, but is characterized by being affected by the material unique to the sheet. The connection-type folding machine combines these units as needed to bend a sheet.

Next, FIGS. 6 (a) to 6 (f) are symbolic representations of the respective folding modes appearing in the claims of the present invention, wherein (a) cross bending, (b) triple folding, respectively.
(C) Mie newspaper fold, (d) international quadruple fold, (e) English quadruple fold, (f) German quadruple fold.

The symbols are read as follows. The arrow indicates the sheet feeding direction. One horizontal bar means a state in which the sheet passes through one buckle plate folding unit and one fold line is provided in a direction transverse to the sheet feeding direction. 1
Each rectangular symbol means the direction of a fold line which is given by passing the sheet through one knife roller bending unit, and when there are a plurality of rectangles, these are arranged in order toward the back of the paper. Means that. Fig. 6 (a)-
As is clear from (f), the angle of the folds given to the sheet sequentially changes by 90 degrees. The sheet always advances toward the back of the paper while changing the direction with the newly added crease at the beginning. The change in the size of the rectangle has no special meaning.

As an example, FIGS. 7 (b ₀ ) to (b ₃ ) show, in order, an actual bending mode of triple-fold bending represented by the symbols shown in FIG. 6 (b). The alternate long and short dash line indicates the bent portion that is added at the stage immediately after that.

Based on the above, embodiments of the present invention will be described below.

Following the paper sheet feeding direction E, a buckle plate folding unit formed of a folding roller 1 and a buckle plate 2 for performing parallel folding is provided, and a transfer roller and a cutting or sewing machine are provided at the exit of the buckle plate folding unit. A rotating knife shaft or output shaft is provided, which comprises the means for forming a row of rows 15, 16. At the exit A of the folded sheet, a rigid frame bridge 5 extending between the side walls 3, 4 of the machine frame and fixed to said side walls forms a plate which forms the upper rear wall of said frame. It is arranged. A cantilever 6 carrying a knife bending unit 7 for cross bending, a knife bending unit 8 for triple folding of the binding, and a Niwa bending unit 9 for triple folding of a newspaper is fixed to the frame bridge 5.

Knife bending unit 7,8,9 is controlled by the presence or absence of the paper sheet as a light barrier, the opening and closing of the optical path,
A transmission and electronic control means (not shown) driven by at least one electric motor 17
It is provided for transmitting a time-synchronized movement to knives, folding rollers, conveyor belts and guide rollers.

Machine shall be provided with parallel folds, or cruciform folds, or one of two selectable third folds.
Means known per se are provided for transporting the crimped sheet. These known means also include transfer means for further guiding the sheet after each folding. Thus, for example, the folding roller 11 is arranged immediately below the third folding units 8 and 9, and the folding roller 11 transports the third folded sheet to the transport roller 12, The sheet is supplied to the conveyor belt 31 by the guide plate 13.
The sheet is supplied to the fourth folding unit 25 (FIG. 1) via the conveyor belt 31.

The fourth bending unit 25 includes the side walls 3 of the machine frame,
4 and is mounted on a cross beam 26 having a circular cross section by a ball bush guide 34. Both side walls 28, 29 of the folding unit 25 have a nose 27 for pressing a cross beam 30, which is also fixedly mounted on the side walls 3, 4. In this way, the folding unit 25 can be easily moved in the direction transverse to the sheet feeding direction E by loosening the clamp screw 41 (FIG. 3), and by tightening the clamp screw 41, the desired bending unit 25 can be moved. Can be clocked in position.

The knife 36 (FIG. 1) of the fourth bending unit 25 is fixed to the frame bridge 5 via a cantilever 35. The cantilever 35 has a knife carrier 37 for this purpose.
(FIGS. 3 and 4) are provided in the form of a strain-free plate having a dovetail-shaped guide 38. The knife 36 is guided in such a manner that the knife clamp holder 39 holds the guide 38. The knife holder 39 has a dovetail groove (FIG. 1) which coincides with the dovetail-shaped guide 38.

The knife 36 is located in either of the moving positions (lock position), that is, the fourth folding unit is located on the right rear side of the newspaper folding unit (German folding) 9, but on the left side of the binding unit 8. It is driven by the drive mechanism 40 regardless of whether it is in the rear position.

In order to convert the fourth folding unit 25 from right to left, i.e. to transform the folding manner from German quadruple folding to English quadruple folding, or from left to right, i.e. vice versa, Insert the knife clamp holder 39 into the dovetail guide
All you have to do is loosen from 38 and clamp screw 41. The fourth folding unit 25 is moved in a direction transverse to the sheet feeding direction, and then is again clamped by the cross beam 26 having a circular cross section, and the knife 36 is moved to the new position by the clamp holder 39 to guide the dovetails. Fixed at 38.

The lower exit belt 42 (FIGS. 1 and 3) is driven by the folding unit 25 via rollers 43, 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 to the machine frame, on which guide rollers 45, 46 for the lower outlet belt 42 are fixedly mounted. When the loop-shaped guide portion of the exit belt 42 that revolves around the guide roller 45 fixedly attached to the frame 44 and the folding unit 25 move, similarly to the drive roller 43 (FIGS. 3 and 4). With respect to the guide roller 47 mounted on the moving bending unit 25, the transfer means 10 can be driven regardless of the left or right position of the bending unit 25.

When the folding unit 25 is a German quadruple folding unit arranged at the right rear of the newspaper folding unit 9, an upper belt 48 (FIG. 3) for transferring sheets is required. Is attached to the frame 49 and contacts the lower outlet belt 42. In this case, the upper frame 49
Is clamped to the lower frame 44 by another clamp holder 50. If the folding unit 25 is a British quadruple folding located on the left (FIG. 4), the upper belt 48 is not necessary.

[Brief description of drawings]

FIG. 1 is a partial side view of an embodiment of a connecting quadruple folding machine according to the present invention, and FIG. 2 is a view showing that a knife folding unit for a fourth folding forms a German fourth folding, for example. 1 is a plan view of the machine shown in FIG. 1 arranged on the right side when viewed from the sheet feeding direction, FIG. 3 is a rear view of the machine of FIGS. 1 and 2, and FIG. The knife bending unit
A rear view of the same machine arranged on the left side as seen from the sheet feeding direction so as to result in the English type 4th bending, FIG. 5 is an explanatory view of a basic unit of the connection type folding machine, and FIG. 6 is a symbol FIG. 7 is a comparison diagram of one of the symbols shown in FIG. 6 and an actual bending mode. 3, 4 ... Side wall, 5 ... Frame bridge, 6 ... Cantilever, 10 ... Sheet transfer means, 25 ... Bending unit, 26 ...
… Cross beam, 31 …… Conveyor belt, 32 …… Bending roller, 33 …… Shaft, 35 …… Cantilever, 36 …… Bending knife, 37 …… Knife moving body, 38 …… Dove-shaped guide, 39
…… Clamp holder, 41 …… Clamp screw, 42 …… Lower exit belt, 43 …… Driving roller, 44 …… Lower ram, 45,
47 …… Guide roller, 48 …… Upper belt, 49 …… Upper frame, 50 …… Separate clamp holder.

 ─────────────────────────────────────────────────── --- Continuation of the front page (56) References JP-A-56-93657 (JP, A) JP-A-50-118822 (JP, A) JP-A-53-53427 (JP, A) JP-A-60- 191967 (JP, A) Actually open Sho 60-16459 (JP, U) Japanese Patent Sho 29-6813 (JP, B1) Japanese Patent 28-104 (JP, B1) Japanese Sho 55-28987 (JP, B2) JP-B-51-11973 (JP, B2) JP-B-56-23906 (JP, B2) JP-B 34-19408 (JP, Y1) JP-B-12-5719 (JP, Y1 T) West German patent publication 1761377 (DE, A) West German Patent Publication 1436596 (DE, A)

Claims (7)

(57) [Claims] 1. A bending unit (25) for performing a fourth bending.
The folding knife (36) is attached so as to be able to reciprocate in the direction transverse to the sheet feeding direction (E), and can be locked at two desired positions in the transverse direction. At some point, and in that the folding machine includes a single sheet transfer means (10) for transferring sheets from the folding unit (25) in both locking positions of the folding unit (25). A buckle plate bending unit for performing a first parallel bending and a knife bending unit for performing a second cross bending, which have characteristics, are arranged in this order in front of and behind the sheet feeding direction, Further arranged behind these, two knife folding units for performing a third folding, each of which may function as a book binding folding or a newspaper folding, and further behind these, A folding unit (25) which is arranged so as to be able to reciprocate across the feeding direction of the chair and which functions as the fourth bending of the English type or the German type and which performs the fourth bending. Heavy folding machine. 2. A bending knife (36) of a fourth bending unit (25) is attached to a knife moving body (37) so as to be able to reciprocate by a taramp holder (39). The connection type quadruple folding machine according to claim 1, which is characterized. 3. The knife moving body (37) comprises a dovetail-shaped guide (38) and a clamp holder (39) having a corresponding dovetail groove with which the dovetail-shaped guide (38) engages. The quadruple folding machine according to claim 2, further comprising: 4. A patent characterized in that the knife moving body (37) is arranged on a cantilever (35) fixed to a frame bridge (5) provided so as to cross the sheet feeding direction. The connection type quadruple folding machine according to any one of claims 1 to 3. 5. The respective cantilevers (6) and (35) for the holders of the knives of the folding unit for performing the third and fourth folds are arranged together on said common frame bridge (5). The connection type quadruple folding machine according to claim 4, characterized in that 6. The sheet transfer means (10) according to any one of claims 1 to 5, characterized in that the sheet transfer means (10) is arranged on one side wall (3) of the machine frame or immediately after that. Connected quadruple folding machine described in paragraph. 7. The lower outlet belt (42) of the sheet transfer means (10) is characterized in that it has a loop-shaped guide portion of the belt formed by guide rollers (45, 47). The connection type quadruple folding machine according to any one of items 1 to 6.