JPS5830705Y2 - Cover pasting forming device for bookbinding machine - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a cover pasting forming device for a bookbinding machine.

In a bookbinding machine, the paper is transported in a straight line,
It is known that in the process, glue is applied to the back of the paper, and then a cover is attached to the back. After the cover is attached, the corners of the back are sandwiched from both sides to form the paper. is also known.

To do this, place the cover on the pasting table in advance, and when the cover reaches the top of the pasting table, raise the pasting table and press the cover against the back of the paper to paste it, and slide the scissors. It is necessary to press the paper so that it sticks to the cover from both sides.

However, in the conventional configuration, the drive mechanism for lifting the application table and the sliding mechanism for the scissors are constructed separately, which not only complicates the configuration but also increases the size of the entire mechanism. there were.

The purpose of this invention is to miniaturize and simplify the mechanism for attaching and forming the cover.

Examples of this invention will be described below with reference to the drawings.

1 and 2 show the entire bookbinding machine. 1 is a clamper that clamps sheets 2 to be bound; 3 is a glue applicator; Glue is applied by rolling the back surfaces of the

5 is a cover pasting and forming device.

The clamper 1 is transported in a straight line by a roller 11 installed on a chain 10 driven across sprockets 8 and 9, and a rail 12 into which the roller 11 is fitted and fixed to the clamper 1.

A glue applicator 3 and a cover pasting forming device 5 are sequentially arranged along the transfer path.

In Figures 1 and 2, the clamper 1 is at the starting position,
Starting from here, the material is sequentially transferred to the glue applicator 3 and cover pasting and forming device 5.

Then, as described later, after the cover is pasted and formed, it is fed backwards and returned to the starting position.

Here, the straightening plate 13 is tilted so that the front side thereof is lowered, so that the clamp is released from the paper (at this time, the paper has already been bound).

) is discharged from below. Details of the cover pasting and forming device 5 according to this invention are shown in FIG.

21 is a base frame, and 22 is a movable frame, which is movable in the vertical direction with respect to the base frame 21.

For this purpose, a cam 24 is installed on a shaft 23 supported by a base frame 21, and the shaft 23 is rotated by a required drive source.

A shaft 25 is also supported on the movable frame 22, and a roller 26 is rotatably installed here, and the roller 26 is brought into rolling contact with the cam 24.

Therefore, the rotation of the cam 24 causes the movable frame 22 to move up and down via the rollers 26.

This movement is performed by a link 27 that is swingably supported on the base frame 21.
The movable frame 22 is guided by a shaft 28 connecting the link 27 and the movable frame 22.

A pasting table 29 is fixed to the movable frame 22. This fixation is performed by screwing the screws 30 into the screw holes 31 of the movable frame 22.

A pair of scissors 32 and 33 are installed on the pasting table 29 so that they can slide in opposite directions, and when the scissors 32 and 33 slide toward each other, they pinch the paper from the art material side of the cover. The molding is completed by pressing and molding, and sliding in the direction away from each other.

In order to slide the scissors 32 and 33, pairs of driving plates 34 and 35 are provided on the movable frame 22 (two sets are provided in the figure).

).

Each drive plate 34,35 is swingably installed on the movable frame 22 by a shaft 36, and a shaft 37 supported on the base frame 21.
are inserted through each of the drive plates 34 and 35.

Therefore, when the movable frame 22 moves up and down, each drive plate 34.
35 rotate in opposite directions about the shaft 37.

At the upper end of each driving plate 34, 35, connecting fittings 38 and 39 are supported by a shaft 40 so as to be freely swingable.

This connecting metal fitting passes through a long hole 41 formed in the pasting base 29 and reaches the surface of the pasting base 29, where it is fixedly connected to the scissor metal fittings 32 and 33 by screws 42.

Note that the spacing between the scissors 32 and 33 needs to be adjustable according to the thickness of the paper, so one of the scissors 32 is formed with a long hole 43 so that it can be moved and set at any desired position. It's Toshide.

In the above configuration, the paper 2 is clamped and transported from the start position, and before reaching the top of the pasting table 29, the cover P is fed out from the cover feeding unit (not shown).
is set on the upper surface of the pasting table 29.

When the paper reaches above the pasting table 29, rotation is transmitted to the shaft 23 by a micro switch (not shown) or the like.

As a result, the movable frame 22 starts to rise, and the cover P is pressed against the back surface of the paper 2 to be pasted.

At the same time, the drive plates 34, 35 swing about the shaft 37, so that the scissors 32, 33 press the cover P against the corner of the back surface of the sheet 2, thereby forming it under pressure.

FIGS. 4 and 5 show a series of these operations.

By one rotation of the shaft 23, the movable frame 22 returns to its initial position, and the scissors 32 and 33 also move the paper 2 and the cover P.
After tightening and shaping, return to the original position.

At this point, the transmission of rotation to the shaft 23 is stopped by the operation of a microswitch or the like, and then the paper 2 is fed back toward the starting position.

The transfer distance of the connecting fittings 38 and 39 is therefore the scissor fitting 3.
The transfer distance of 2.33 is determined by the swing angle of the drive plates 34 and 35, which is determined by the vertical movement distance of the movable frame 22.

Therefore, when the thickness of the paper 2 or the cover P changes, it is necessary to change the minimum spacing between the scissors 32 and 33. To do this, it is necessary to provide a long hole 43 in the metal fitting 32 so that the attachment position to the connecting metal fitting 38 can be adjusted. There is.

Further, the distance that the movable frame 22 moves up and down with respect to the base frame 21 is determined by the cam 24.

However, when the thickness of the adhesive layer applied to the back surface of the paper 2 is changed, or when the thickness of the cover P is changed, it is necessary to adjust the highest position of the pasting table 29.

Therefore, in the configuration shown in the figure, rollers 45 are installed on the base frame 21,
This is made to be able to rotate freely on the inclined surface 47 of the fixed base 46, and also to be freely movable by a shaft 48 identified on the base frame 21.

According to this, the base frame 21 is raised and lowered by the shaft 48 as the roller 45 rolls on the inclined surface 47, and when the base frame 21 is set at a desired height, the shaft 48
should be fixed.

As detailed above, according to this invention, simply by raising and lowering the movable frame with respect to the base frame, the scissors slide accordingly, making it possible to attach and mold the cover. is placed in the base frame and can be moved up and down using a cam, and by inserting shafts supported by the base frame and movable frame into the drive plate integrated with the scissor fittings, Since the cover is swingable, all the components for attaching the cover and forming the cover can be housed within the base frame, which has the advantage of being extremely simple and can be manufactured in a small size.

[Brief explanation of drawings]

Fig. 1 is a front view showing an embodiment of this invention, Fig. 2 is a partially cutaway perspective view, Fig. 3 is a partially cutaway exploded perspective view of the main parts, Fig. 4, FIG. 5 is a front view of a portion showing the operating state. 21... Base frame, 22... Movable frame, 29
...Passing stand, 32.33...Scissors metal fittings, 34, 35...Drive plate, 37...
・Axis, 2...Paper, P...Cover.

Claims (1)

[Scope of utility model registration request] a base frame, a cam installed on a shaft supported by the base frame and rotated by a required drive source, a movable frame disposed inside the base frame, and a cam installed on the shaft supported by the movable frame. a roller that contacts the cam so as to move the movable frame up and down with respect to the base frame; a pasting stand for cover pasting that is fixed to the upper surface of the movable frame; and a pasting table that is supported by the base frame. a pair of driving plates, which are inserted through the movable frame so that the shaft is the center of swing, are supported by the shaft on the movable frame, and swing in opposite directions as the movable frame moves up and down; and the swinging of the drive plate. A cover pasting and forming device for a bookbinding machine, comprising a pair of scissors connected to each of the drive plates so as to slide and press the rear corner of the paper from both outsides of the cover.