JP2582339Y2 - Binding device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for compressing and bundling stacked objects. More specifically, the present invention relates to a binding device that stacks a fixed number of print books printed by a rotary press with a stacker, compresses the resultant, and then binds the band with a band.

[0002]

2. Description of the Related Art For example, a printed book discharged from a printing press such as an offset rotary press has a fold formed on one side and a needle margin formed on the other side. Such a printed book is an eight-page signature obtained by folding one sheet into four at the center, or a 15-page signature obtained by folding one sheet into three at the center. The plurality of signatures folded in this way are transported to a stacker, where they are stacked in a certain number. The stacked signatures are compressed by a binding device, banded and bound in the compressed state.

One known binding device has a flat compression plate for compressing signatures. The folds of the signature sent from the rotary press are relatively lightly folded for the purpose of preventing breakage or the like, and are in a slightly expanded state. When a large number of them (for example, 300 or 600 parts) are stacked, the central part in the width direction (width between the front edge side and the back side) of the signature is significantly dented, and both ends are turned up. When this is compressed by a flat compression plate, the compression force becomes uneven at the end and the center of the paper, and an excessive force is applied to the end. As a result, breakage of end portions, generation of wrinkles, misalignment, poor binding, and the like may occur, which may impair the commercial value of the printed matter.

[0004] Another known binding device has two hinge-shaped compression plates that can be opened and closed right and left. In this binding apparatus, first, in a state where the compression plate is closed, a central portion in the width direction of the signature is compressed by a portion corresponding to a hinge support shaft, and then the compression plate is opened to compress both end portions of the signature. As a result, good compression corresponding to the concave shape of the signature is possible. However, a very complicated mechanism is required for the opening and closing operation of the compression plate.

A binding device for solving these problems is disclosed in Japanese Patent Application No. 59-115211. The compression mechanism of this binding device has three divided compression plates,
It has a connecting compression plate formed by sequentially supporting the center and right divided compression plates. This connecting compression plate is driven by a link mechanism. At the time of compression, due to the link motion, the center divided compression plate first contacts the center of the signature to start compression, and then the left and right divided compression plates tilt from the inclined state to the horizontal state with respect to the signature. While compressing both ends of the signature. This enables compression corresponding to the concave shape of the signature. Further, by employing the link mechanism, the three divided compression plates can be linked with a simple structure.

[0006]

However, the apparatus disclosed in the above publication is difficult to adapt to a printing press that prints signatures having various dimensions, such as a gravure rotary press. For example, when compressing a signature having a relatively small width, one end of the signature in the width direction may be compressed first by the central compression plate. Therefore, there is a possibility that the commercial value of the printed matter may be impaired as in the case where a flat compression plate is used.

An object of the present invention is to solve the above-mentioned inconvenience and to provide a binding device which can cope with objects to be bound having various dimensions.

[0008]

In order to achieve the above object, a binding device according to the present invention compresses an object having a width and a length and stacked in a thickness direction from above in a thickness direction. A device that can reciprocate along the thickness direction of the object to be tied so as to compress the object to be tied, and compress one end, the center, and the other end in the width direction of the object to be tied, respectively. First, second, and third pressing plates for performing the pressing operation. These pressing plates are first compressed at the center of the object to be bound by the second pressing plate, and then at both ends of the object to be bound. The first and third pressing plates are linked so as to be compressed along the width direction of the object to be bound, and the second pressing plate is connected to the first, second and third pressing plates. Eccentrically from the center position in the entire length to the side corresponding to one of the one end and the other end of the object to be bound Comprising a compression means for location, a bundling means for bundling the compressed material to be bound, a.

According to one embodiment of the present invention, the compression means comprises:
Two sets are arranged along the length direction of the binding object, and the maximum size of the compression means along the length direction of the binding object is such that one compression means is smaller than the other compression means, and And a support plate for supporting the stacked objects to be tied along the thickness direction on the side where the small compression means is located, and the support plate is movable along the length direction of the objects to be tied.

In the present invention, the one end (or the other end) in the width direction of the object to be bound does not mean exactly one end (the other end) but includes one end (the other end) and its vicinity. .

Similarly, the central portion in the width direction of the binding object is
It includes the center and its vicinity.

[0012]

According to the above arrangement, the second pressing plate for compressing the central portion of the object to be bound is eccentrically located.
When compressing an object to be bound having a relatively small width, the central portion can be compressed first.

[0013]

1 and 2, a binding device includes a stacker 1 for stacking signatures 6, a banding device 2 for banding signatures, and a folding device attached to the banding device 2. Press device 3 for compressing
(Not shown in FIG. 1), and a signature receiving member 4 with a roller.

The stacker 1 automatically collates signatures, that is, signatures 6 printed by a printing machine (not shown), stacks the signatures in a certain number, and transports them to the banding device 2.

In the banding apparatus 2, the stacked signatures 6 are placed on a placing table 5 with rollers. Here, the mounting table 5 supports the back side of the signature 6. The band transfer mechanism 7 sends out and pulls back the band 8 made of a heat-returnable plastic or the like. The sealer unit 9 cuts and welds the band 8 wound around the material 6 to be bound at the overlapping portion 10. Chamber 11 for retaining band 8
To the band reel 13 by the band feed roller 12
Sends band 8. The arch 14 for guiding the band is provided with an operation switch 15 for starting the banding operation of the banding device 2 and an operation switch 16 for vertically moving a support 17 described later of the press device 3.

The mechanism of the press device 3 attached to the banding device 2 will be described mainly with reference to FIGS.

The pressing device 3 has a support 17. A support 18 that can reciprocate along the thickness direction Z of the signature 6 is attached to the upper surface of the support base 17 by driving means such as an air cylinder (not shown). On the lower surface of the support table 17, upper ends of two arms 19a and 19b opposed to each other at a predetermined interval along the width X of the signature 6 (width between the front edge side and the back side) are fixed. An air damper 20 is provided between these two arms 19a and 19b.
Is attached. The air damper 20 is connected to a discharge pipe 21a for removing air. The amount of air bleeding by the discharge pipe 21a is, for example, adjusted by adjusting screw 21
It can be adjusted by b.

The lower ends of the two arms 19a, 19b are connected to elongated holes 23a, 23a near the outer ends of the pressing plates 22a, 22c, respectively.
The pressing plates 22a, 22c are pivotally supported via pins 24a, 24c inserted into the member 23c. Pressing plates 22a, 22
The inner ends of c are pivotally supported at both ends of the central pressing plate 22b by hinge pins 25a and 25c. Accordingly, the pressing plates 22a, 22b, 22c form a link mechanism.

The center pressing plate 22b is connected to the air damper 20 via a telescopic rod 27 which expands and contracts in the Z direction in response to the repulsive force of a spring 26. Spring 2
The repulsion force of the signature 6 can be adjusted by the adjustment screw 21b according to the type of the signature 6. This adjustment is performed by adjusting the three pressing plates 22 at the initial position of the link mechanism, that is, before compression.
a, 22b, and 22c maintain the positional relationship shown in FIG. More specifically, before compression, of the three pressing plates, the central pressing plate 22b is substantially vertical to the Z direction and located at the lowest position, and the pressing plates 22a,
22c is inclined between the central pressing plate 22b and the arms 19a, 19b. The shape formed by the three pressing plates before this compression corresponds to the curved shape of the signature 6 along its width direction X.

The operation of the press device 3 will be described. In this embodiment, two press devices 3
Are attached so as to sandwich the band guide arch 14 along the up-down direction of the signature, but these two (only one is shown)
Press devices 3 operate synchronously.

When a certain number of signatures 6 stacked by the stacker 1 are conveyed along the paths indicated by arrows a and b and the receiving member 4 and the mounting table 15 are pressed, the driving means of the column 18 is activated, and the support table 17 is activated. The compression by the lowering of is started. In this case, first, the center pressing plate 22b compresses the central portion 6b in the width direction of the signature 6, and then the pressing plates 22a and 22c at both ends are
Are compressed at both end portions 6a and 6c. As the compression proceeds, the pressing plates 22a and 22c at both ends gradually shift from the inclined posture to a posture parallel to the central pressing plate 22b.

When the compression is completed, the three pressing plates are linearly connected in series as shown in FIG. Therefore, only by lowering the support 17, first, the central portion 6 b of the signature 6 is compressed, and then both end portions 6 a,
6c can be compressed. Support 17 following compression
Rises and the three pressing plates are separated from the signature 6, so that no force is applied to the lower surface of the central pressing plate 22b, so that the three pressing plates return to the initial shape by the repulsive force of the spring 27.

Such a press device 3 can cope with signatures 6 having various widths, such as gravure-printed signatures. For this purpose, the pressing plates 22a, 22c on both sides
Is such that the pressing plate 22a located on the back side of the signature 6 is shorter than the other pressing plate 22c.
Therefore, the center pressing plate 22b is provided with two arms 19a, 1
It is not located at the center position between 9b, but is eccentrically located on the back side.

If the center pressing plate 22b is located at the center between the two arms 19a, 19b without being eccentric, as shown in FIG. Since the front edge 6c of the signature 6 on the front edge side is first compressed by the central pressing plate 22b, there is a possibility that a frame shift or wrinkles may occur.

However, as shown in FIG.
When the center 2b is eccentric to the back side, the center of the signature 6 can be compressed first by the pressing plate 22b even for the signature 6 having a relatively small width.

On the other hand, although not shown, when a signature 6 having a relatively large width is compressed, a position slightly shifted from the center of the signature 6 to the back side is compressed first. 6
Is supported by the mounting table 5, so that frame shift and wrinkles are prevented.

Since such a press device 3 has a simple structure, it can be easily combined with a conventional binding line.

The operation of the binding machine after the completion of the compression work by the press device 3 will be described. Transmission and reception of each signal in the following description is performed by an electric control system (not shown) of the binding machine.

When the compression work of the press device 3 is completed and the support 17 is raised, a compression work completion signal is issued to the sealer unit, and the sealer unit 9 is operated to operate the band 8.
Pinch the tip of. Next, the band 8 is pulled back by the band transfer mechanism 7, and when the band 8 wraps around the signature 6 and reaches a predetermined tension, the sealer unit 9 is operated again,
The band 8 is welded and cut in the polymerization section 10. The support 17 of the press device 3 is raised to the initial position by the welding cut completion signal. Further, the band 8 is conveyed into the arch 14 by the transfer mechanism 7, and the tape is fed to the chamber 11 by the feed roller 12, whereby one process is completed. The above description is for the case where the strapping device 2 and the press device 3 are interlocked.
5 and the operation switch 16 of the press device 3,
A configuration in which each of them is operated independently is also possible.

FIG. 6 shows a second embodiment of the present invention. In this embodiment, a movable support plate 29 that supports the signature is disposed on the top side or the ground side of the signature 6. The movable support plate 29 is moved along the vertical direction of the signature 6 by a known guide means such as a guide rail (not shown) so that the length along the vertical direction Y can correspond to various signatures 6. Can be moved. In order to secure the moving space for the movable support plate 29,
Among the two pressing devices 3a and 3b similar to the first embodiment, the pressing device 3a located on the support plate 29 side has a maximum dimension along the vertical direction Y of the signature than the other pressing device 3b. Is also smaller. Accordingly, it is possible to cope with a dimensional change of the signature 6 in the vertical direction Y.

Generally, the signature 6 has a width smaller than the top and bottom dimensions, but the binding device of the present invention can also be applied to a signature whose width is larger than the top and bottom dimensions.

[0032]

As described above, according to the binding device of the present invention, it is possible to cope with the objects to be bound having various widths, to prevent a decrease in the commercial value due to wrinkles and misalignment, and to improve the binding quality. Improvement can be achieved. Further, since the compression operation is simple, it is possible to reduce the individual differences in the finish by the operator of the binding device and reduce the burden on the operator.

[Brief description of the drawings]

FIG. 1 is a front view schematically showing a binding device according to a first embodiment of the present invention.

FIG. 2 is a side view schematically showing a banding device and a press device in the device of FIG.

FIG. 3 is an enlarged view showing the press device of FIG. 1 along a width direction of the signature, in a state before compression.

FIG. 4 is an enlarged view corresponding to FIG. 3, showing the press device in a state after compression.

FIG. 5 is a view for explaining inconvenience when the center pressing plate of the press device is not eccentric in contrast to the present invention.

FIG. 6 is a side view schematically showing a main part of a binding device according to a second embodiment of the present invention along a vertical direction of a signature;

[Explanation of symbols]

2: Banding device (binding means), 3, 3a, 3b: Press device (compression means), 6: signature, 6a: one end of signature, 6b: central portion of signature, 6c: signature other edge,
22a: pressing plate (first pressing plate), 22b: central pressing plate (second pressing plate), 22c: pressing plate (third pressing plate),
29 ... Support plate.

Claims (2)

(57) [Scope of request for utility model registration] An apparatus for compressing and bundling objects to be bound having a width and a length and stacked in a thickness direction from above in a thickness direction, wherein the objects to be bound are compressed so as to compress the objects to be bound. The first, second and third pressing plates for compressing one end, the center and the other end in the width direction of the object to be bound, respectively, Of the object to be tied is first compressed by the second pressing plate, and then both ends of the object to be tied are compressed by the first and third pressing plates. The second pressing plate is linked along the direction, and the second pressing plate is moved from a central position in the entire length of the connected first, second, and third pressing plates to one side along the width direction of the binding object. A binding device comprising: eccentrically located compression means; and binding means for binding the compressed binding object. 2. Compression means are arranged in two sets along the length direction of the object to be tied, and the maximum size of the compression means along the length direction of the object to be tied is that one compression means is the other compression means And a support plate for supporting the stacked objects to be tied along the thickness direction on the side where the compressing means having the smaller maximum size is located, the support plate being provided in the longitudinal direction of the object to be tied. The binding device according to claim 1, wherein the binding device is movable along.