JPH07112754B2 - Device for aligning book blocks fed to the book block clamp of a wireless binding machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a book block clamp comprising an inner scissor plate and an outer scissor plate movable relative to the inner scissor plate, and when the book block is passed to the book block clamp. The present invention relates to a device for aligning book blocks to be supplied to a book block clamp of a wireless binding machine, the back portion of which is supported on one frame.

[Conventional technology]

When the book block is fed to the book block clamp of the wireless binding machine, the individual signatures that make up the book block first reach between the open book block clamps, in this case the signature. Are supported with their backs on one stand. The closing movement of the outer scissors pushes the signature towards the inner scissors so that the still loose book block becomes a compressed block. When moving in the lateral direction, a frictional force is generated between the fold portion of the back of the signature and the pedestal, so that the back portion of the pressed signature cannot follow the closing motion of the outer scissor plate. This problem mainly occurs when the stability of the signature is not good, but is more serious when the fold portion of the spine protruding below the scissors plate is set to be relatively large. That is,
The back portion of the signature not gripped by the bookblock clamps is laid down in a mushroom shape, at the same time there is a relative shift in their height between the individual signatures. During the subsequent rimming, it is unavoidable that the outside, the signatures protruding from the gantry are further separated, and the typesetting surface is displaced in the book block.

[Problems to be solved by the invention]

An object of the present invention is to provide a book block clamp for an edgeless binding machine, which overcomes the above-mentioned problems of the prior art and allows the book block to be fed in the book block clamp with even corners. An object of the present invention is to provide a device for including a book block.

[Means for solving problems]

The device for aligning the book block of the present invention is capable of moving inward while keeping parallel to the outer scissor plate, and at that time, a long ruler piece that pushes the fold portion of the spine of the book block on the gantry. , And a facing length ruler piece that is parallel to the movable length ruler and that faces the movable ruler piece, and that receives the fold portion of the spine of the book block pushed by the long ruler piece. Other advantageous features are as indicated in the dependent claims.

By means of the controlled length ruler according to the invention, the back part of the signature is moved over the rack simultaneously with the closing movement of the scissors. Distortion of the signature due to the frictional force acting on the back cannot occur. After the book block is clamped by the book block clamp, the back of the book block is always flat and aligned so as to maintain a right angle.

〔Example〕

 Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a plan view showing an embodiment of an apparatus for aligning book blocks according to the present invention with both outer and inner scissor plates of a book block clamp removed, and FIG. 2 is an embodiment of FIG. Figure 3 shows both the outer and inner scissors with side view in the direction of arrow X, Figures 3 and 4 show the book block without the device according to the invention before and after being taken up by the book block clamps. FIG. 5 and FIG. 5 are views showing another embodiment.

In the aligning device according to the present invention, the book block is brought to a horizontal conveying surface via a feeding path extending obliquely upward, and the book block clamp of the wireless binding machine pulls the book block. Used in the machine's retractor.

At the time of delivery, the book block 1 is supported by its back on one frame 2 so as to be sandwiched by the inner scissors plate 3 and the outer scissors plate 4 movable therewith. The closing movement of the outer scissors plate 4 causes the outer signature in the book flock to be moved inward. FIG. 3 shows the book block standing on the pedestal 2 and not yet taken up by the book block clamp, while FIG. 4 shows the book block sandwiched by the book block clamp. As is apparent from FIG. 4, when the outer scissor plate 4 works inward, the back of the signature is bent by the frictional force between the back of the signature and the rack 2. Therefore, in the present embodiment, the long ruler piece 5 and the long ruler piece 5 which can move inward while keeping parallel to the outer scissor plate 4 and push the back fold portion of the book block at that time are provided. Opposite length ruler pieces 6 are provided which face each other in parallel and receive the folds. The movement of the long ruler piece 5 as shown in FIG.
The long ruler strips 5 are set so that the outer scissor plates 4 stop by a small dimension "a" from the position where the outer scissors plate 4 starts to press against the book block so that the back of the book block is held together but not tightened. Is set. As soon as this alignment process is completed, the long ruler piece 5 returns to its original position.

On the side opposite to the movable scissors plate 4, below the scissors plate 3,
The inner surface of the facing length ruler 6 is located at a position retracted outward by a slight dimension "b" with respect to the inner surface. Therefore, the back portion of the book block is not obstructed by the counter length ruler piece 6 during transfer.

As shown in FIG. 1, the long ruler piece 5 is pin-connected to two mutually parallel angled levers 7 received by one intermediate frame 9. The intermediate frame 9 is movably mounted on parallel guide rods 8 on the frame of the machine and, by the action of a threaded spindle 10, for adjusting the position of the long ruler strip 5 according to the format,
Worked back and forth. Each free end of the two angled levers 7 is pin-coupled to a push rod 11, which, due to the action of an operating cam not shown in the figure, causes a closing movement of the book block clamp. It can move longitudinally for opening and closing in synchronization.

As a modified embodiment, the movable long ruler piece 5 and the counter length ruler piece 6 at the fixed position can be moved in the transport direction in synchronization with the book block clamp.
In this way, not only the fold line portion can be maintained integrally during the synchronous running, but also the pressure can be applied to this portion additionally.

As can be seen in FIG. 5, the long ruler piece 5 and the counter long ruler piece 6
A groove 13 is formed in each of the holes 13 in the forward direction when viewed in the transport direction. At the time of relative movement, a force pulling the book block 1 toward the gantry 2 acts on the book block 1 and contributes to improving the state of uniform back.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of an apparatus for aligning book blocks according to the present invention with both outer and inner scissors of a book block clamp removed, and FIG. 2 is an embodiment of FIG. FIG. 3 is a side view of the outer and inner scissor plates as viewed in the direction of arrow X, and FIGS. 3 and 4 show a book block without the device according to the present invention before and after being taken up by a book block clamp. FIG. 5 and FIG. 5 are views showing another embodiment. 1 ... Book block, 2 ... Stand, 3 ... Inner scissors, 4 ... Outer scissors. 5: Long ruler piece (movable), 6: Counter length ruler piece, 7: Angled lever, 8
…… Guide rod, 9 …… Intermediate frame, 10 …… Screwed spindle, 11 …… Push rod, 13 …… Slanted groove.

Claims (6)

[Claims] 1. A book block clamp comprises an inner scissor plate and an outer scissor plate movable relative to the inner scissor plate, and when the book block is passed to the book block clamp, its back portion is supported by one rack. In a device for aligning book blocks supplied to a book block clamp of a wireless binding machine, the device can be operated inward while being kept parallel to the outer scissor plate (4), and at that time, the frame (2 ) The long ruler piece (5) that pushes the spine of the spine of the upper book block (1) and the movable long ruler piece (5) are parallel to each other at the opposite position, and A device for aligning book blocks, characterized in that it comprises a counter length ruler (6) which receives the spine fold portion of the book block (1) to be pushed. 2. Device according to claim 1, characterized in that the inner surface of the counter-length ruler (6) is arranged slightly outwardly offset with respect to the inner surface of the inner scissor plate (3). . 3. The long ruler piece (5) is controlled so that its inward movement ends before compression by the scissors plates (3, 4) begins. The apparatus according to item 2. 4. A long ruler piece (5) and a counter long ruler piece (6),
An apparatus according to claim 1, which is movable in the transport direction in synchronization with the book block clamp. 5. When the long ruler piece (5) and the counter long ruler piece (6) move in the conveying direction in synchronization with the book block clamp,
Claims: The long ruler piece (5) is operable and the counter-long ruler piece (6) is positioned so that further pressure is applied to the spine fold of the book block (1). The apparatus according to item 4 of the above paragraph. 6. A long ruler piece (5) and a counter long ruler piece (6),
Device according to any one of claims 1 to 5, characterized in that it is provided with an oblique groove (13) which is downwardly slanted in the conveying direction.