JP2020116758A - Bookbinding apparatus and bookbinding system - Google Patents

Abstract

To provide a bookbinding apparatus that makes paste on both sides of a booklet uniform and improves appearance of the booklet.SOLUTION: There is provided a bookbinding apparatus that manufactures a booklet P3 by covering a paper bundle P1 with a cover paper P2, comprising a paste applying unit 50 that applies paste on a spine part Pa of the paper bundle P1, a cover paper adhering unit 80 that adheres a cover paper P2 on the spine part Pa on which the paste is applied by the paste applying unit 50, folds the cover paper P2, and adheres the cover paper P2 on the paper bundle P1, a heating unit that heats the cover adhering unit 80, and a control unit that controls the heating unit.SELECTED DRAWING: Figure 1

Description

The present invention relates to a bookbinding device and a bookbinding system.

2. Description of the Related Art Conventionally, there is known a bookbinding device that stacks sheets on which images are formed to form a sheet bundle, applies a heat-melting type glue to the spine of the sheet bundle, and attaches a cover sheet to produce a booklet. Specifically, glue is applied to the spine of the sheet bundle, the spine is pressed against the spine, the spine is folded and pressed from both sides with pressing plates, and the spine is attached.
The hot-melt type glue used in such a bookbinding apparatus is called "hot melt" and is a white solid at room temperature, but it becomes a fluid when heated, and therefore can be applied by a roller or the like. (For example, see Patent Document 1).

JP, 2007-296814, A

However, in the conventional bookbinding device, after the adhesive is applied to the spine of the bundle of sheets, the adhesive starts to harden by the time when the cover is folded and both sides are pressed by the pressing plates. There were cases where irregularities were formed on the part and the appearance was poor.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a bookbinding device and a bookbinding system that can make the glue on both sides of the booklet uniform and produce a good-looking booklet.

In order to solve the above problems, the present invention provides
In a bookbinding device that creates a booklet by covering a bundle of sheets with a cover,
A glue application section for applying glue to the spine of the sheet bundle,
A cover sticking unit that sticks the cover on the spine coated with the glue by the glue applying unit, folds the cover and sticks the cover on the sheet bundle,
A heating unit for heating the cover sticking unit,
A control unit for controlling the heating unit,
It is characterized by including.

The present invention also provides a bookbinding system,
An image forming apparatus that forms an image on a sheet,
A bookbinding device that receives a sheet conveyed from the image forming device to form a booklet,
It is characterized by including.

According to the present invention, the paste on both sides of the booklet can be made uniform, and a booklet with a good appearance can be manufactured.

It is a schematic block diagram of a bookbinding system. It is a figure for explaining a sheet bundle storage section and a sheet bundle transport section. It is a figure for demonstrating a glue application part. It is a figure for demonstrating a cover sticking part. It is a schematic diagram which shows a mode that a cover sheet is stuck to a sheet bundle. It is a block diagram which shows the control system of a bookbinding system. It is an example of a setting table. It is a flowchart which shows the folding process of a cover sheet. It is a figure which shows the modification of a sheet bundle storage part. It is a figure which shows the modification of a bending member.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the scope of the present invention is not limited to the following embodiments and illustrated examples.

[Schematic configuration of bookbinding system]
First, the schematic configuration of the bookbinding system S according to the present embodiment will be described.
FIG. 1 is a diagram showing a schematic configuration of the bookbinding system S.
As shown in FIG. 1, the bookbinding system S includes an image forming apparatus A and a bookbinding apparatus B. The paper P on which the image is formed by the image forming apparatus A is supplied from the image forming apparatus A to the bookbinding apparatus B, and the bookbinding apparatus B performs bookbinding processing. In the present embodiment, a booklet accommodating device C for accommodating the booklet P3 that has been bound is connected to the bookbinding device B.

<Image forming apparatus A>
The image forming apparatus A is, for example, a copying machine, a printer, a facsimile, and a multifunction machine having various functions thereof, and supplies a paper P on which an image is formed by an electrophotographic method to the bookbinding apparatus B.

The image forming apparatus A includes an image forming section a having a charging section 2, an image exposing section 3, a developing section 4, a transfer section 5A, a charge removing section 5B, and a cleaning section 6 arranged around a rotating image carrier 1. .. Further, an operation display unit 9 including a display unit and an operation unit is arranged above the image forming apparatus A.

The image forming unit a performs uniform charging on the surface of the image carrier 1 by the charging unit 2, and then performs exposure based on image data read from a document by the laser beam of the image exposure unit 3 or print data from a computer. A latent image is formed by scanning, and the latent image is reversely developed by the developing unit 4 to form a toner image on the surface of the image carrier 1.
The toner image formed on the surface of the image carrier 1 is transferred onto the paper P fed from the paper storage unit 7A by the transfer unit 5A at the transfer position. The sheet P on which the toner image has been transferred is separated from the image carrier 1 by removing the charges on the back surface thereof by the charge eliminating section 5B, and is conveyed by the conveying section 7B. Then, the fixing unit 8 heat-fixes the toner image on the sheet P. The paper P on which the toner image has been heated and fixed is discharged to the outside of the image forming apparatus A by the paper discharge roller 7C and is sent to the bookbinding apparatus B.

When images are to be formed on both sides of the paper P, the paper P heated and fixed by the fixing unit 8 is branched from the normal paper discharge path by the transport path switching plate 7D, and is switched back at the reverse transport unit 7E to reverse the front and back. Let The sheet P, which has been turned upside down, passes through the image forming section a again to form an image on the back side, and after passing through the fixing section 8, is discharged to the outside of the image forming apparatus A by the sheet discharge roller 7C, and the bookbinding apparatus B Sent to.

The cleaning unit 6 removes the developer remaining on the surface of the image carrier 1 after the above-described image forming process is performed, and prepares for the next image formation.

<Bookbinding device B>
The bookbinding apparatus B includes, for example, a sheet transport unit 10, a sheet discharge unit 20, a sheet bundle storage unit 30, a sheet bundle transport unit 40, a glue application unit 50, a cover sheet supply unit 60, and a cover sheet cutting unit 70. , And a cover sticking unit 80. Further, an operation display unit 90 including a display unit 90a and an operation unit 90b is arranged above the bookbinding apparatus B.

The paper transport unit 10 is composed of, for example, a plurality of transport rollers, a belt, a guide, a transport path switching gate, and the like, and transports the paper P introduced via the paper discharge rollers 7C of the image forming apparatus A to the transport path switching gate. Depending on the setting, the sheet is branched into one of the sheet discharge section 20, the sheet bundle accommodating section 30, or the cover sheet pasting section 80 and is conveyed. For example, when the bookbinding processing is not designated for the bookbinding apparatus B, the paper P ejected from the image forming apparatus A is directly ejected to the fixed paper ejection tray 22 of the paper ejection unit 20.

The paper discharge unit 20 includes, for example, a paper discharge roller 21, a fixed paper discharge table 22, and the like, and the paper P conveyed by the paper conveyance unit 10 is fixedly discharged by the paper discharge roller 21 at the top of the apparatus. The paper is discharged onto the paper table 22 and stored. In the present embodiment, the fixed paper discharge table 22 can directly receive the paper P discharged from the image forming apparatus A and stack up to about 200 sheets.

FIG. 2 is a diagram for explaining the sheet bundle storage section 30 and the sheet bundle transport section 40.
As shown in FIG. 2, the sheet bundle accommodating section 30 includes, for example, an inclined sheet placing table 31, a movable sheet trailing edge positioning member 32, an aligning member 33 for aligning the sheet P in the width direction, and the like. ..
The sheet bundle accommodating section 30 stacks the sheets P conveyed by the sheet conveying section 10 one by one on the sheet placing table 31 while sequentially aligning them to form a sheet bundle P1 of a predetermined number of sheets P.

The sheet bundle conveying section 40 moves the sheet stacking table 31 and the sheet trailing edge positioning member 32 of the sheet stack accommodating section 30 diagonally downward by a driving section (not shown), so that the sheet stacking sheets stacked on the sheet stacking table 31. P1 is conveyed obliquely downward. Then, when the sheet bundle P1 is conveyed to the position shown by the chain double-dashed line in FIG. 2, the sheet bundle P1 is swung, and the sheet bundle P1 is placed in an upright state so that the spine portion Pa for the adhesive application process is on the lower side and stopped.
Next, the sheet bundle conveying unit 40 holds the sheet bundle P1 in the upright state by the holding unit 41, moves the sheet bundle P1 to a position at which the sheet stacking table 31 and the like are movable, and stops.
After that, the sheet placing table 31 and the like are raised and returned to the position where the sheets P are stacked.

FIGS. 3A and 3B are diagrams for explaining the glue applying section 50.
As shown in FIGS. 2 and 3A and 3B, the glue application unit 50 is arranged so as to face the back portion Pa of the sheet bundle P1 which is in the upright state with the back portion Pa facing downward. ..
The glue application unit 50 includes, for example, an application roller 51, a glue container 52 that stores the glue N, a moving body 53 that reciprocates the glue container 52 along the spine Pa of the sheet bundle P1, and a glue container 52 when the glue container 52 moves forward. A scraping member 54 and the like provided on the downstream side are provided.

The application roller 51 is provided in the glue container 52, and is rotated by a drive unit (not shown). With the rotation, the heat-melted glue N in the glue container 52 is held on the surface thereof, and the spine Pa of the sheet bundle P1 is held. Apply with the thickness specified in.
The width of the application roller 51 is set wider than the width of the spine portion Pa of the sheet bundle P1 in the thickness direction.

The glue container 52 is provided with a heat source (not shown) for heat-melting the glue N, and the liquefied glue N is stored inside the glue container 52 in an optimal state for paste application. As an example, the set temperature of the heat source for heat melting is 180° C., and the temperature of the glue in the glue container 52 is about 170° C. As the glue N, for example, one made of PUR hot melt is used.

The moving body 53 supports the glue container 52 and the coating roller 51, and reciprocates them integrally in the horizontal direction. The moving body 53 moves in the direction of arrow Z1 from the initial position on the back side of the bookbinding apparatus B (the left end in FIG. 3A) during the forward movement, and stops at a predetermined folding position on the front side of the bookbinding apparatus B, and then returns. At times, it is driven to reverse in the direction of arrow Z2 and returns to the initial position.

The scraping member 54 is for scraping the adhesive applied to the spine portion Pa of the sheet bundle P1 to the side surface of the sheet bundle P1. The scraping member 54 is provided in the glue container 52 and is supported by a shaft J1 that is axially supported on the side surface of the glue container 52. Further, the scraping member 54 is swingable along the axis J1.
As shown in FIG. 3A, the scraping member 54 waits in a state where the scraping claw portion 541 at the tip thereof is lowered to a position where it does not come into contact with the applied glue N during the forward movement.
Further, as shown in FIG. 3B, the scraping member 54 is moved along the axis J1 in a state where the scraping claw portion 541 is raised to a position having a predetermined distance from the spine Pa of the sheet bundle P1 at the time of the backward movement. Rock.
Here, by providing a predetermined space between the scraping claw portion 541 and the back portion Pa, the applied glue N is made uniform, and the applied glue N is prevented from being completely scraped by the sweeping member 54. There is. The predetermined interval is appropriately set depending on the viscosity of the glue, the amount of glue attached to the spine Pa of the sheet bundle P1, and the like, and is set to, for example, about 1 mm.

Returning to FIG. 2, the cover sheet feeding unit 60 is composed of, for example, a cover sheet stacking unit 61, a sheet feeding unit 62, conveyance rollers 63, 64, 65, and the like, and covers the cover sheet P2 stored in the cover sheet stacking unit 61. The sheet is separated and fed by the sheet feeding section 62, and is conveyed to the cover sheet pasting section 80 via the conveying rollers 63, 64, 65.

The cover sheet cutting unit 70 is arranged on the right side of the conveyance roller 65 in the figure, and cuts the cover sheet P2 when the cover sheet P2 is longer than the length required for the case binding process for the sheet bundle P1. Done and remove excess parts beforehand.

FIG. 4 is a diagram for explaining the cover pasting unit 80. Further, FIGS. 5A and 5B are schematic views showing a state in which the cover sheet P2 is attached to the sheet bundle P1.
As shown in FIG. 4, the cover sticking section 80 includes, for example, transport rollers 81 and 82, a pressure member (cover sticking section) 83, a moving housing 84, an elevating section 85, a pair of folding members (cover bending). Unit) 86 and the like, and executes a cover sheet pasting process of pasting the cover sheet P2 to the sheet bundle P1.

First, the cover pasting unit 80 causes the transport rollers 81 and 82 to transport the cover sheet P2 introduced through the transport rollers 63, 64, and 65 of the cover feeding unit 60 to a predetermined position.

Next, after the adhesive applying process of the adhesive applying unit 50 to the sheet bundle P1 is completed, the cover attaching unit 80 controls the elevating unit 85 by a drive unit (not shown) to move the movable housing 84, as shown in FIG. Move it to a predetermined elevated position. At this raised position, the central portion of the cover sheet P2 placed on the pressure member 83 is pressed against and attached to the glued spine portion Pa of the sheet bundle P1 as shown in FIG. 5A. It

Next, after the cover sheet P2 is attached to the spine Pa of the sheet bundle P1, the cover sheet sticking unit 80 is driven by a pair of folding members by a driving unit (not shown) in a raised state of the cover sheet sticking unit 80 shown in FIG. The 86 are driven so as to approach each other. At this time, by lowering the grip portion 41 that grips the sheet bundle P1 to lower the sheet bundle P1, the cover sheet P2 is folded along the spine Pa as shown in FIG. 5B. Further, the sheet bundle P1 and the cover sheet P2 are pressed by horizontally moving the pair of folding members 86 from both sides, and the glue N and the cover sheet P2 sticking out to the side portion of the sheet bundle P1 are attached. , A booklet P3 is formed.

Here, the pair of bending members 86 are formed of a material having thermal conductivity such as metal. Further, the pair of folding members 86 are formed to be longer than the length of the sheet bundle P1 in the longitudinal direction, and can press both side surfaces of the booklet P3 at once.
A heater H is built in the pair of folding members 86, and the pair of folding members 86 press the booklet P3 while being heated to a predetermined temperature by the heater H. For this reason, even if the glue N on the side portion of the sheet bundle P1 is hardened, it can be softened when pressed.
Further, the pair of folding members 86 is provided with a sensor 87 for detecting the thickness of the booklet P3 (sheet bundle P1 and cover sheet P2) being manufactured. The sensor 87 detects when the distance between the pair of folding members 86 becomes the same distance (predetermined value) as the thickness of the booklet P3 at the time of completion, and the user determines that the booklet P3 has an appropriate thickness. You can confirm that it has become. The pair of bending members 86 can stop the approaching motion based on the detection signal of the sensor 87.

Here, as shown in FIG. 4, the sensor 87 is provided on the pair of bending members 86, but if the sensor 87 can detect the thickness of the booklet P3 being manufactured, the sensor 87 can be used. There is no limit to the position. For example, it may be provided at a position on the upper side of the booklet P3 being manufactured.

The booklet P3 formed by the cover sheet sticking portion 80 is placed on the transport belt 91 of the booklet accommodating apparatus C shown in FIG. 1, which can be moved up and down, and is sequentially ejected by the rotation of the transport belt 91, and on the delivery tray 92. It is loaded and housed in.

The operation display unit 90 includes a display unit 90a such as a liquid crystal display or an organic electroluminescence (EL) display, for example, and performs various display outputs according to the processing content of the control unit 100. The operation display unit 90 detects an input operation (for example, contact or proximity) with respect to the display area of the display unit 90a, and inputs a detection signal indicating a position (coordinates) at which the input operation is detected to the control unit 100. The unit 90b is provided. The control unit 100 associates the position indicated by the detection signal with the display content of the display unit 90a corresponding to the position, and receives the input operation by the user. The operation display unit 90 is not limited to the operation unit 90b, and may include switches and buttons for various inputs.

FIG. 6 shows a block diagram of a control system of the bookbinding system S according to this embodiment.
As shown in FIG. 6, the image forming apparatus A and the bookbinding apparatus B are connected.
The image forming apparatus A includes a control unit A1, and the bookbinding apparatus B includes a control unit 100. Both control units are connected via a communication unit A2 of the image forming apparatus A and a communication unit B2 of the bookbinding apparatus B, and control a series of operations in each apparatus.
The control section 100 includes, for example, the sheet conveying section 10, the sheet discharging section 20, the sheet bundle accommodating section 30, the sheet bundle conveying section 40, the glue applying section 50, the cover supplying section 60, the cover cutting section 70, and the cover pasting section 80. The operation display unit 90, the storage unit B1, the communication unit B2, etc. are connected.
Although not shown, the control unit A1 is connected to each unit that constitutes the image forming apparatus A.

The control unit 100 includes a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), and the like. The CPU develops various programs stored in the ROM into the RAM, and collectively controls the operation of the bookbinding apparatus B in cooperation with the various programs developed in the RAM.

The storage unit B1 is a non-volatile storage device such as an HDD (Hard Disk Drive) that stores programs and various data, a semiconductor memory, or the like. The storage unit B1 stores data such as program data and various setting data so that the control unit 100 can read and write the data.
For example, the storage unit B1 stores a setting table T that is referred to when the cover sheet P2 is folded by the pair of folding members 86.

FIG. 7 is an example of the setting table T.
As shown in FIG. 7, in the setting table T, the temperature and pressurization time of the pair of folding members 86 when the cover sheet P2 is bent are set based on the number of the sheet bundle P1 and the basis weight of the cover sheet P2. It is a thing.

[Covering process of bookbinding device]
Next, a cover attaching process for attaching the cover sheet P2 to the sheet bundle P1 in the bookbinding apparatus B according to the present embodiment will be described.
FIG. 8 is a flowchart showing the cover sticking process.

First, the control unit 100 determines the thickness of the booklet P3 to be completed based on preset booklet information (step S1).
The thickness of the booklet P3 to be completed can be determined from the thickness of the sheet bundle P1, the thickness of the cover sheet P2, and the thickness of the glue N attached to the side portion of the sheet bundle P1.
The thickness of the sheet bundle P1 and the thickness of the cover sheet P2 are included in the booklet information in advance, and the control unit 100 acquires them from the booklet information.
Further, the thickness of the glue N attached to the side portion of the sheet bundle P1 can be estimated from the number of sheet bundles P1, and the control unit 100 determines the thickness based on the number of sheet bundles P1 included in the booklet information in advance. To get

Next, the control unit 100 moves the sensor 87 to a position where the thickness of the booklet P3 that has been determined to be completed is detected (step S2).

Next, the controller 100 causes the glue applying unit 50 to apply the glue N to the spine Pa of the sheet bundle P1 (step S3).

Next, the control unit 100 moves the movable housing 84 to the raised position, so that the pressing member 83 presses the cover sheet P2 against the spine Pa of the sheet stack P1 from below, so that the spine Pa of the sheet stack P1 is pressed. The central portion of the cover sheet P2 is attached (step S4).

Next, the control unit 100 drives the pair of folding members 86 to start the folding process of the cover sheet P2 (step S5).
At this time, the pair of bending members 86 are heated by the heater H to a predetermined temperature determined based on the setting table T. That is, the number of sheets P2 and the basis weight of the cover sheet P2 are acquired from the booklet information relating to the booklet P3 being manufactured, and the temperature of the pair of folding members 86 is determined with reference to the setting table T. Also, the pressurizing time is determined.
Therefore, even if the glue N on the side of the sheet bundle P1 is hardened, it can be made soft and fluid.
The flowable glue N becomes uniform between the booklet bundle P1 and the cover sheet P2 by the pressing force of the pair of bending members 86.

Next, the control unit 100 determines whether or not the sensor 87 is turned on (step S6).

Then, when the sensor is turned on (step S6: YES), the control unit 100 determines whether or not the predetermined pressurization time set in the setting table T has elapsed (step S7), and has passed. If not (step S7: NO), the determination in step S7 is repeated.
On the other hand, when the predetermined pressurizing time has elapsed (step S7: YES), the control unit 100 ends the folding process (step S8), ejects the booklet (step S9), and ends the process.

On the other hand, when the sensor 87 is not turned on (step S6: NO), the control unit 100 determines whether or not a predetermined pressurizing time has elapsed (step S10), and when it has not elapsed (step S10: NO). ), and returns to step S6 to repeat the subsequent processing.
On the other hand, when the predetermined pressurizing time has elapsed (step S10: YES), the control unit 100 determines whether or not the preset allowable time has been reached (step S11).
The allowable time is a maximum time (for example, 30 seconds) that can be applied to the bending process, which is set in advance to prevent the productivity from decreasing. The user can change the settings as appropriate.

When the allowable time has not been reached (step S11: NO), the control unit 100 returns to step S6 and repeats the subsequent processing. On the other hand, when the allowable time is reached (step S11: YES), the control unit 100 moves to step S8. That is, even if the sensor 87 is not turned on, that is, even if the booklet P3 does not reach the thickness of the booklet P3 to be completed, the folding process is forcibly terminated when the allowable time is reached.

Note that it is also preferable to eject the booklet P3 produced by the forced termination of the folding process so as to be distinguishable from the normal booklet P3 (when the folding process is not forcedly terminated).
To be identifiable may mean, for example, that the booklet P3 produced by forcibly ending the folding process is discharged to a tray different from the other booklets P3, or that some kind of mark is put on the booklet P3. Techniques are also acceptable. As a result, the user can easily judge the workability of the booklet P3 whose booklet P3 does not have the thickness of the booklet P3 to be completed.

[Effects of this Embodiment]
As described above, according to the present embodiment, in the bookbinding apparatus B that produces the booklet P3 by covering the sheet bundle P1 with the cover sheet P2, the glue application unit 50 that applies the glue N to the spine Pa of the sheet bundle P1. And a cover pasting section 80 for sticking the cover sheet P2 to the spine Pa coated with the glue N by the glue applying section 50, bending the cover sheet P2 and sticking the cover sheet P2 to the sheet bundle P1, and a cover pasting section. A heating unit that heats the attachment unit 80 and a control unit 100 that controls the heating unit are provided.
Therefore, when the cover sheet P2 is stuck to the sheet bundle P1, even if the applied glue N is solidified, it can be melted and caused to flow, so that the space between the sheet bundle P1 and the cover sheet P2 is reduced. The paste N can be made uniform, and the appearance of the booklet P3 can be improved.

Further, according to the present embodiment, the cover sheet pasting unit 80 has the pressing member 83 for pressing the pasting sheet P2 to the pasting portion Pa to which the glue N is applied by the glue applying section 50 and adhering it to the spine portion Pa. A pair of folding members that perform a folding process in which the pasted cover sheet P2 is bent along the spine Pa and pressed from both sides, and the glue N protruding from the spine Pa causes the cover sheet P2 to be stuck to the sheet bundle P1. 86, and the heating unit heats at least a pair of bending members 86 of the pressing member 83 and the pair of bending members 86.
Therefore, when the cover sheet P2 is bent and attached to both side portions of the sheet bundle P1, even if the glue N adhered to the both side portions is solidified, it can be melted and flowed, so that a pair of By the pressing force of the folding member 86, the glue N between the sheet bundle P1 and the cover sheet P2 can be made uniform, and the appearance of the booklet P3 can be improved.

In addition, according to the present embodiment, control unit 100 controls the heating unit based on preset booklet information.
Therefore, it is possible to control the heating unit suitable for the booklet P3 being manufactured.

Further, according to the present embodiment, the control unit 100 determines the temperature of the pair of folding members 86 in the folding process based on the booklet information, and the heating unit determines the temperature of the pair of folding members in the folding process. The temperature of 86 is maintained at the determined temperature.
Therefore, in the bending process, the temperatures of the pair of bending members 86 can be appropriately maintained.

Further, according to the present embodiment, the control unit 100 determines the pressing time of the pair of folding members 86 in the folding process based on the booklet information.
Therefore, it is possible to press for a time suitable for the booklet P3 being manufactured.

Further, according to the present embodiment, the sensor 87 is provided which detects that the thickness of the booklet P3 has reached a predetermined value during the folding process.
Therefore, it is possible to confirm that the booklet P3 having a predetermined thickness is formed by the folding process.

Further, according to the present embodiment, if the sensor 87 does not detect that the thickness of the booklet P3 has reached the predetermined value even after the determined pressing time has elapsed, the control unit 100 sets a preset allowance. The pressing time of the pair of bending members 86 is extended to the time.
Therefore, when the booklet P3 having a predetermined thickness is not formed, the pair of bending members 86 can further press the booklet P3.

Further, according to the present embodiment, control unit 100 forcibly terminates the folding process when sensor 87 does not detect that the thickness of booklet P3 has reached the predetermined value even after the allowable time has elapsed.
Therefore, it is possible to prevent productivity from being excessively reduced.

Further, according to the present embodiment, the control unit 100 ejects the booklet P3 produced when the folding process is forcibly terminated from the booklet P3 for which the folding process is not forcibly terminated.
Therefore, the user can easily check the state of the booklet P3 produced when the folding process is forcibly terminated.

[Other]
The embodiments to which the present invention can be applied are not limited to the above-described embodiments and can be appropriately modified without departing from the spirit of the present invention.

For example, as shown in FIG. 9, a sensor S2 as a temperature detection unit may be provided in the alignment member 33 of the sheet bundle storage unit 30, and the temperatures of the pair of folding members 86 may be controlled based on the detection result. .. That is, the temperature of the pair of folding members 86 may be controlled by the temperature of the sheet bundle P1 when the sheets are stacked in the sheet bundle storage unit 30.
Specifically, for example, as a detection result of the sensor S2, when the temperature of the sheet bundle P1 is 20° C. or higher, the pair of folding members 86 are heated based on the setting table T, and when the temperature is lower than 20° C., the pair of folding members 86 are paired. Control such as heating the bending member 86 to 110° C. can be performed.
As a result, even when the sheet bundle P1 is cold, the glue N can be surely softened by pressing the pair of folding members 86, and the effect of improving the appearance of the booklet P3 can be further enhanced. it can.
Further, a heater is provided on at least one of the sheet stacking table 31 and the aligning member 33 of the sheet bundle accommodating section 30, and when the detection result of the sensor S2 is less than or equal to a predetermined value, the sheet bundle P1 stacked by the heater is heated. Also good.
Further, the sensor S2 may be provided at a position that detects the temperature inside the bookbinding apparatus B.

Further, for example, as shown in FIG. 10, a protrusion 88 having a semicircular cross-sectional shape may be provided on the contact surface of the folding member 86 with the cover sheet P2. It is preferable that a plurality of protrusions 88 are provided in the vertical direction at a predetermined interval, and the radius of curvature thereof is 0.1 to 0.15 mm. Further, the plurality of protrusions 88 may have a larger dimension as they are farther from the back portion Pa.
As a result, during the folding process, the protrusion 88 crushes the glue N via the cover sheet P2, and the glue N can be moved to a space not hit by the protrusion 88, so that the fluidity of the glue N is further improved. Can be increased.

Further, it is preferable that the pressing member 83 also be provided with a heater. Even when the cover sheet P2 is attached to the back portion Pa of the sheet bundle P1, the paste N on the back portion Pa can be made more uniform by keeping the pressure member 83 heated to a predetermined temperature by the heater.

Further, in the above embodiment, as shown in the flowchart of FIG. 8, when the allowable time is reached, the bending process is forcibly ended, but the bending process is continued until the sensor 87 is turned on. It may be controlled to

S Bookbinding system A Image forming apparatus A1 Control section A2 Communication section a Image forming section B Bookbinding apparatus 100 Control section B1 Storage section T Setting table B2 Communication section 30 Paper bundle accommodating section 31 Paper stacking table 32 Paper trailing edge positioning member 33 Alignment member 40 Paper Bundle Conveying Unit 41 Gripping Unit 50 Glue Applying Unit 51 Applying Roller 52 Glue Container 53 Moving Body 54 Scraping Member 541 Scraping Claw 60 Cover Cover Feeding Unit 61 Cover Stacking Unit 62 Feeding Units 63, 64, 65 Conveying Rollers 70 Cover Cutting Part 80 Cover sticking parts 81, 82 Conveying roller 83 Pressing member (cover sticking part)
84 Moving housing 85 Elevating part 86 Bending member (cover folding part)
87 sensor (thickness detection part)
H heater (heating part)
88 Protrusion 90 Operation display 90a Display 90b Operation 91 Transfer belt 92 Paper ejection tray C Booklet storage device P Paper P1 Paper bundle Pa Back P2 Cover paper P3 Booklet N Adhesive

Claims (12)

In a bookbinding device that creates a booklet by covering a bundle of sheets with a cover,
A glue application section for applying glue to the spine of the sheet bundle,
A cover sticking unit that sticks the cover on the spine coated with the glue by the glue applying unit, folds the cover and sticks the cover on the sheet bundle,
A heating unit for heating the cover sticking unit,
A control unit for controlling the heating unit,
A bookbinding apparatus comprising: The cover sticking part is
A cover pasting unit for sticking the cover by pressing the back cover to which the glue is applied by the glue applying unit;
A cover folding part that folds the cover attached to the spine along the spine and presses it from both sides, and performs a folding process to attach the cover to the sheet bundle by the glue protruding from the spine. ,
Equipped with
The bookbinding apparatus according to claim 1, wherein the heating unit heats at least the cover sheet folding unit of the cover sheet pasting unit and the cover sheet folding unit. The bookbinding apparatus according to claim 2, wherein the control unit controls the heating unit based on booklet information preset for the booklet. Based on the booklet information, the control unit determines the temperature of the cover folding portion in the folding process, and the heating unit sets the temperature of the cover folding portion in the folding process to the determined temperature. The bookbinding apparatus according to claim 3, wherein the bookbinding apparatus is maintained. The bookbinding apparatus according to claim 3, wherein the control unit determines a pressing time of the cover folding unit in the folding process based on the booklet information. The bookbinding apparatus according to claim 2, further comprising a thickness detection unit that detects that the thickness of the booklet has reached a predetermined value during the folding process. When the thickness detecting unit does not detect that the thickness of the booklet has reached the predetermined value even after the determined pressing time has elapsed, the control unit may cover the cover folding unit up to a preset allowable time. 7. The bookbinding apparatus according to claim 6, wherein the pressing time of is extended. The control unit forcibly ends the folding process when the thickness detection unit does not detect that the thickness of the booklet has reached the predetermined value even after the allowable time has elapsed. The bookbinding apparatus according to Item 7. 9. The control unit discharges a booklet produced by forcibly ending the folding process so as to be distinguishable from a booklet produced without forcibly ending the folding process. Bookbinding device. 10. The bookbinding apparatus according to claim 2, wherein the cover sheet bending portion is a plate body having a protrusion on a contact surface with the cover sheet. It is equipped with a paper stack accommodating unit that stacks paper and forms a paper stack.
The sheet bundle accommodating section includes a temperature detecting section for detecting the temperature of the formed sheet bundle,
The bookbinding device according to any one of claims 2 to 10, wherein the control unit controls the heating unit based on a detection result of the temperature detection unit. An image forming apparatus that forms an image on a sheet,
The bookbinding device according to any one of claims 1 to 11, which receives a sheet conveyed from the image forming apparatus to form a booklet,
A bookbinding system comprising:

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