JP4077214B2 - Bookbinding book back press - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a back pressing device for booklet for bookbinding.
[0002]
[Prior art]
A well-known bookbinding method is to create a booklet by stacking one sheet of printed paper in page order, and apply a hot-melt adhesive melted on the back of the booklet to attach a cover. A bookbinding machine that performs bookbinding includes a clamp plate that fixes and holds a booklet, a press plate that presses the back side of the booklet that is fixedly held on the clamp plate, and both side surfaces of the back side end of the booklet that is pressed by the press plate. The back side of the booklet that is mainly equipped with a pressing nip plate and fixedly held by the clamp plate and the back side of the cover that is attached to the back side of the booklet are positioned on the pressing plate and nip plate, and hot melt adhesive is placed on the back side of the booklet and the cover page. The sheet is supplied between the back parts of the booklet, pressed against the back of the booklet through the cover with a pressing plate, and attached to the back of the booklet, and pressed by the nip plate through the cover to form. .
[0003]
The hot melt adhesive is supplied by a means for preparing a hot melt adhesive heated and melted in a heating container, and applying the hot melt adhesive heated and melted to the back of a booklet fixed and held on a clamp plate with a roller. There is a means for applying a hot melt adhesive in advance to the back surface of the cover.
[0004]
[Problems to be solved by the invention]
By the way, in the former means for preparing the hot melt adhesive melted in the heating container, the hot melt adhesive corresponding to the thickness of the booklet is applied, so that high bookbinding strength is obtained, but depending on the thickness of the booklet In addition, the amount of hot melt adhesive is large, and much time is required for cooling and solidification after attaching the cover. Therefore, after pasting the cover, it is moved to another place and cooled and solidified. However, there is a problem that a space for that is required and the bookbinding machine is enlarged.
[0005]
Further, in the latter method in which the hot melt adhesive is applied to the back surface of the cover in advance, the hot melt adhesive layer is almost constant and thin regardless of the thickness of the body, so that it is relatively easy to leave without heating. However, there is a problem that the bookbinding strength and finish may be inferior due to the thin thickness of the hot melt adhesive layer.
[0006]
The present invention has been made to solve these problems, enables the use of a hot melt adhesive having a thickness corresponding to the thickness of the booklet, and does not increase the space and is cooled and solidified after pasting the cover. An object of the present invention is to provide a bookbinding book back press device that can reduce the time required for the bookbinding.
[0007]
[Means for Solving the Problems]
The present invention according to claim 1 is a bookbinding book back press device that presses the back face of a booklet and attaches paper to the back face of the booklet, and includes a heating plate and a cooling plate, and the heating plate and the cooling plate. Are fixed to a common rotatable shaft at an angle, and the back of the booklet is pressed by either the heating plate or the cooling plate by driving the rotatable shaft.
[0008]
According to a second aspect of the present invention, in the first aspect of the present invention according to the first aspect, the first lever fixed to the drive shaft and the second lever fixed to the rotatable shaft engaged with the first lever are provided. The heating plate and the cooling plate are fixed to the second lever at an angle.
[0009]
According to a third aspect of the present invention, in the first or second aspect of the present invention, the present invention has the nip plate for forming the back portion of the booklet by pressing the back side end portion of the booklet to which the paper is attached from both side surfaces. At least when the cooling plate is pressed, the back side end of the booklet is pressed from both side surfaces with the nip plate.
[0010]
In the present invention, since the heating plate is used when attaching the cover, and the cooling plate is used after the cover is attached, the time required for solidifying the hot melt adhesive can be reduced while saving space. Can do. In addition, when the nip plate is provided, the back portion of the booklet can be formed easily and reliably by pressing the back side end of the booklet from both side surfaces with the nip plate at least when the cooling plate is pressed.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing an overall configuration of a bookbinding machine using a bookbinding book back press device according to an embodiment of the present invention, and FIGS. 2 to 15 are explanatory diagrams of operations of the bookbinding machine.
[0012]
In FIG. 1, 1 is a main body of a bookbinding machine, 2 is a hot melt adhesive sheet (hereinafter referred to as an adhesive sheet) in which hot melt adhesive layers are formed on both surfaces of a substrate such as a nonwoven fabric and paper, and 3 is an adhesive sheet. A supply base, 4 is an adhesive sheet feed roller, 5 is a feed roller drive motor, and 6 is a cutting blade (the vertical drive mechanism itself is well known and omitted in the figure).
[0013]
7 is a pick-up arm fixed with a needle 7a that sticks and holds an adhesive sheet at the tip, 8 is a clamper unit, 9 is a clamp plate for fixing and holding a booklet installed in the clamper unit 8 (the opening and closing mechanism may be a well-known one in the figure) 10) A clamper unit drive motor for moving the clamper unit 8 via, for example, a rack and pinion mechanism or a chain, and 11 for an opening width of the clamp plate when the clamp plate 9 holds the booklet fixedly. Is a booklet thickness detecting device that detects the thickness of the booklet by a rack and pinion mechanism, for example. The pick-up arm 7 is fixed to the clamper unit 8 so as to be movable up and down via, for example, a spring, moves with the movement of the clamper unit 8, and is normally positioned upward by the reaction force of the spring. In addition, you may make it move up and down with a motor irrespective of a spring.
[0014]
12 is a paper pasting unit, 13 is a lifting nut of the paper pasting unit 12, 14 is a lifting screw of the paper pasting unit 12, and 15 is a paper pasting that drives the lifting screw 14 to raise and lower the paper pasting unit. Unit driving motor, 16 is a rotatable shaft, 17 is a heating plate with a built-in heater, 18 is a cooling plate provided with cooling fins, 19 is a first lever, 20 is a second lever, 21 is a lever driving motor, and 22 is a nip. A plate (opening / closing mechanism is well known and omitted in the figure), 23 is a paper feeder (feeds pasted paper such as a cover), 24 is a paper feeder feed screw, and 25 is paper feed A machine feed screw drive motor, 26 is a booklet, and 27 is a sheet (cover) to be attached to the back of the booklet.
[0015]
The rotatable shaft 16, the heating plate 17, the cooling plate 18, the first lever 19, the second lever 20, and the lever driving motor 21 are mounted on the paper pasting unit 12, the paper pasting unit 12 on which these are mounted, and this paper The sticking unit 12 includes a lifting nut 13, a lifting screw 14, and a driving motor 15 to form a paper sticking device. The paper pasting unit 12 is held by an elevating nut 13 that meshes with the elevating screw 14. The elevating screw 14 is rotated by the rotation of the driving motor 15, and the elevating nut 13 engaged with the elevating screw 14 is raised and lowered. This raises and lowers.
[0016]
The second lever 20 bends approximately 90 degrees, an engagement groove 20a is formed on the outer side of the bend corner, the central portion of the bend is fixed to the rotatable shaft 16, and the heating plate 17 is on the other end of the bend. A cooling plate 18 is attached to the end of the. Therefore, by rotating the rotatable shaft 16 by 90 degrees forward and backward, either the heating plate 17 or the cooling plate 18 becomes a pressing plate that presses the back surface of the booklet 27.
[0017]
The first lever 19 is connected to the lever drive motor 21, and an engagement protrusion 19 a is provided at the tip thereof. The engagement protrusion 19 a is engaged with the engagement groove 20 a of the second lever 20. Therefore, when the lever drive motor 21 is rotated, the first lever 19 is rotated, and the second lever 20 is rotated by the engagement between the engagement protrusion 19a of the first lever 19 and the engagement groove 20a of the second lever 20, and heating is performed. Either the plate 17 or the cooling plate 18 can be a pressing plate that presses the back of the booklet 27.
[0018]
The reason for using the lever is to reduce the power of the lever drive motor 21 to reduce the size and weight (the motor can be used also for driving the nip plate 22 if the power is reduced in this way). The rotatable shaft 16 may be directly rotated by a motor or a handle. Further, when the clamper unit 8 is configured to move up and down, the mechanism for raising and lowering the paper pasting unit 12 is omitted, and the paper pasting unit 12 itself is configured as a paper pasting device.
[0019]
The nip plate 22 that forms the back of the booklet by pressing the back side edge of the booklet from both sides is positioned above the pressing plate (heating plate 17 or cooling plate 18) that presses the back side of the booklet 26, and is attached to the paper. It is mounted on the attaching unit 12 and moves up and down as the paper pasting unit 12 is raised and lowered.
[0020]
The feed roller drive motor 5 rotates by an amount corresponding to the thickness of the booklet 26 based on the thickness signal of the booklet 26 from the booklet thickness detection device 11 to drive the feed roller 4, and the width corresponding to the back width of the booklet 26 (hereinafter referred to as the booklet 26) The adhesive sheet 2 having a predetermined width is intermittently sent out at a predetermined timing. The cutting blade 6 cuts the adhesive sheet 2 fed by the feed roller 4. By this cutting, the adhesive sheet 2 having a width corresponding to the width of the back surface of the booklet 26 is created.
[0021]
When the clamp plate 9 is in an upper position (this position is the origin) facing the pressing plate (heating plate 17 or cooling plate 18), the needle 7a fixed to the tip of the pickup arm 7 is in the vicinity of the cutting blade 6. Then, the adhesive sheet 2 is pushed down by the lowering of the cutting blade 6 to pierce the adhesive sheet 2, and the adhesive sheet having a predetermined width that has been cut by returning to the original position by lifting and returning the cutting blade 6 is lifted. That is, the pickup arm 7 is interlocked with the movement of the cutting blade 6. Further, when the clamper unit 8 moves to the left in the figure (front direction of the bookbinding machine) and the needle 7a fixed to the tip of the pickup arm 7 is located at the origin, it is pushed down by the paper pasting unit 12 and the paper pasting is performed. When the attachment unit 12 is lowered, the attachment unit 12 is raised to return to the original position. That is, the pickup arm 7 is interlocked with the movement of the paper pasting unit 12.
[0022]
The paper feeder 23 is, for example, a chuck that is screwed into the paper feeder feed screw 23, and a cover 27 that is held by the paper feeder 22 when the paper feeder feed screw 24 is rotated by the rotation of the paper feeder feed screw drive motor 25. Is passed over the nip plate 22 at a predetermined timing, and the back surface portion of the cover 27 is positioned on the pressing plate (heating plate 17 or cooling plate 18) nip plate 22, that is, at the origin position. That is, the drawing is performed according to the size of the cover 27.
[0023]
The operation of the bookbinding machine configured as described above will be described below. The adhesive sheet 2 is set so that the tip of the adhesive sheet 2 is positioned at the feed roller 4, the cover 27 is set on the paper feeder 23, and the paper pasting unit 12 is set at the raised position using the heating plate 17 as a pressing plate It is assumed that the clamp plate 9 is set at the origin position (see FIG. 15). The clamp plate 9 is opened manually or by power, and the back side of the booklet 26 is inserted into contact with the heating plate 17, and the clamp plate 9 is closed and the booklet 26 is fixedly held by the clamp plate 9. At this time, the thickness of the booklet 26 is detected by the booklet thickness detection device 11, and the signal is sent to a control device (not shown) to determine the rotation amount of the feed roller drive motor 5.
[0024]
When a start button (not shown) is pressed, the paper pasting unit 12 is lowered, and the feed roller 4 is driven to feed out the adhesive sheet 2 having a predetermined width corresponding to the thickness of the booklet 26. When the adhesive sheet 2 having a predetermined width is sent out, the cutting blade 6 is driven downward to cut the adhesive sheet 2, and at the same time, the pickup arm 7 is lowered and the needle 7 a bites into the adhesive sheet 2. Thereafter, the cutting blade 6 is raised, and the pickup arm 7 is also raised with the adhesive sheet 2 having a predetermined width held by the needle 7a.
[0025]
Then, the clamper unit 8 moves to the left in the drawing, and in conjunction with this, the pickup arm 7 also moves to the left in the state where the adhesive sheet 2 having a predetermined width is held by the needle 7a. This movement is continued until the needle 7a reaches the origin position, and when that position is reached, the clamper unit 8 stops. During this movement of the clamper unit 8, the paper feeder 23 moves in the right direction (the back of the bookbinding machine) in the figure, and this movement is continued until the back portion of the cover 27 reaches the origin position. Stop and position the back of the cover 27 at the origin position (this state is shown in FIG. 2).
[0026]
Subsequently, the paper pasting unit 12 is raised, and in conjunction with this rise, the pickup arm 7 holding the adhesive sheet 2 with a predetermined width by the needle 7a is lowered, and the adhesive sheet 2 holds the cover 27. Then, the heating plate 17 is pressed and lightly adhered to the cover 27 (this state is shown in FIG. 3). That is, at this position, the pickup arm 7 is interlocked with the movement of the paper pasting unit 12, and the direction is opposite to that of the paper pasting unit 12. The paper pasting unit 12 is lowered, and the pickup arm 7 is raised in conjunction with this. At this time, since the adhesive sheet 2 is lightly bonded to the cover 27 by the heating of the heating plate 17, it remains on the cover 27 (this state is shown in FIG. 4). Then, the clamper unit 8 moves to the right in the figure and returns to the origin position. At this time, the pickup needle 7a also returns to the position in the vicinity of the cutting blade 6.
[0027]
While the adhesive sheet 2 is temporarily bonded to the cover 27, the sheet pasting unit 12 is raised (this state is shown in FIGS. 5 and 6), and the heating plate 17 is pushed to the back of the cover 27 and the booklet 26. 7 (this state is shown in FIG. 7), the nip plate 22 is driven in a state where the heating plate 17 is pressed, the cover 27 is sandwiched and the back side end of the booklet 26 is pressed from both sides (this state) 8), the back portion is temporarily formed and at the same time, the excessive amount of horizontal glue on the back of the booklet 26 is prevented. Next, the reed pressure is released and the paper pasting unit 12 is lowered (this state is shown in FIG. 9).
[0028]
Here, for example, the lever driving motor 21 is rotated 90 degrees clockwise, the first lever 19 is rotated 90 degrees clockwise, the second lever 20 is rotated 90 degrees counterclockwise, and the pressing plate is heated to the heating plate 17. To the cooling plate 18 (this state is shown in FIG. 10). Then, the sheet pasting unit 12 is raised again, and the cooling plate 18 is pressed against the back of the booklet 26 via the cover 27 (this state is shown in FIG. 11), and the nip plate 22 is pressed with the cooling plate 18 pressed. , The cover 27 is squeezed and the back side end of the booklet 26 is crushed from both sides, and the state is maintained as appropriate (until the adhesive in the molten state is almost cured) to cool and mold the back. (This state is shown in FIG. 12). Thereafter, the reed pressure is released and the paper pasting unit 12 is lowered (this state is shown in FIG. 13).
[0029]
Then, the clamper unit 8 moves in the left direction (front side of the bookbinding machine) in the state where the booklet 26 with the cover 27 attached and formed on the back surface is fixedly held on the clamp plate 9, opens the clamp plate 9, and opens the back surface. The booklet 26 with the cover 27 attached and molded is taken out from the bookbinding machine (this state is shown in FIG. 14). Thereafter, when a reset button (not shown) is pressed, the state returns to the start state (this state is shown in FIG. 15). That is, the clamp plate 9 returns to the origin position, and the paper pasting unit 12 is replaced with the heating plate 17 from the cooling plate 18 and set to the raised position. Thereafter, this operation is repeated every time the cover is pasted.
[0030]
The above bookbinding operation stores a program for calculating the hot melt adhesive melting time, penetration time, hot melt adhesive pressing time, etc. in advance by setting the thickness and type of hot melt adhesive (can be manually set), It is controlled by a control device having a control CPU that executes the program and outputs a command signal. In the above description, a hot melt adhesive sheet is used as an adhesive, but the adhesive is not limited to a hot melt adhesive sheet.
[0031]
【The invention's effect】
As described above in detail, according to the present invention, the hot-melt adhesive melted by heating can be cured in a small space, and the bookbinding machine can be downsized. In addition, a hot melt adhesive sheet having a thickness corresponding to the thickness width of the booklet can be used, and high-quality bookbinding can be obtained while improving the working environment due to the odor of the hot melt adhesive by heat melting.
[Brief description of the drawings]
FIG. 1 is a side view showing an overall configuration of an example bookbinding machine using a bookbinding book back press device according to an embodiment of the present invention.
FIG. 2 is an operation explanatory diagram of the bookbinding machine shown in FIG.
FIG. 3 is an operation explanatory diagram of the bookbinding machine shown in FIG. 1;
FIG. 4 is an operation explanatory diagram of the bookbinding machine shown in FIG. 1;
5 is an operation explanatory diagram of the bookbinding machine shown in FIG. 1. FIG.
6 is an operation explanatory diagram of the bookbinding machine shown in FIG. 1. FIG.
FIG. 7 is an operation explanatory diagram of the bookbinding machine shown in FIG. 1;
8 is an operation explanatory diagram of the bookbinding machine shown in FIG. 1. FIG.
FIG. 9 is an operation explanatory diagram of the bookbinding machine shown in FIG. 1;
10 is an operation explanatory diagram of the bookbinding machine shown in FIG. 1. FIG.
FIG. 11 is an operation explanatory diagram of the bookbinding machine shown in FIG. 1;
12 is an operation explanatory diagram of the bookbinding machine shown in FIG. 1. FIG.
13 is an operation explanatory diagram of the bookbinding machine shown in FIG. 1. FIG.
FIG. 14 is an operation explanatory diagram of the bookbinding machine shown in FIG. 1;
FIG. 15 is an operation explanatory diagram of the bookbinding machine shown in FIG. 1;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Bookbinding machine main body 2 Hot melt adhesive sheet 3 Adhesive sheet supply stand 4 Adhesive sheet feed roller 5 Feed roller drive motor 6 Cutting blade 7 Pickup arm 7a Needle 8 Clamper unit 9 Clamp plate 10 Clamper unit drive motor 11 Booklet thickness detection Device 12 Paper pasting unit 13 Paper pasting unit lift nut 14 Paper pasting unit lift screw 15 Paper pasting unit drive motor 16 Rotating shaft 17 Heating plate (pressing plate)
18 Cooling plate (pressing plate)
19 First lever 20 Second lever 21 Lever drive motor 22 Nip plate 23 Paper feeder 24 Paper feeder feed screw 25 Paper feeder feed screw drive motor 26 Booklet 27 Cover

Claims (3)

In a bookbinding booklet back pressing device that presses the back of a booklet and attaches paper to the back of the booklet, the booklet has a heating plate and a cooling plate, and the heating plate and the cooling plate are angled to a common rotatable shaft The bookbinding booklet back-pressing device is formed by pressing the back surface of the booklet with either the heating plate or the cooling plate by driving the rotatable shaft. A first lever fixed to the drive shaft; a second lever fixed to the rotatable shaft that engages the first lever; and a heating plate and a cooling plate spaced apart from each other by the second lever. The bookbinding booklet back-pressing device according to claim 1, wherein the bookbinding booklet is fixed. There is a nip plate that forms the back of the booklet by pressing the back side edge of the booklet to which the paper is attached from both sides. At least when the cooling plate is pressed, the back side edge of the booklet is turned from both side surfaces by the nip plate. 3. A bookbinding book back press device according to claim 1, wherein the bookbinding booklet is pressed.

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