JP2002254858A - Gluing bookbinding device and image forming device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent disturbance of fore end and rear end of paper to be conveyed onto a paper setting table upon conveying the paper treated by glue spreading treatment to a paper receiving unit to register and pressurize the same in order to carry out the high-speed manufacturing of a booklet and improve the productivity of paper conveyance, registering and pressurizing. SOLUTION: A gumming bookbinding device is provided with an air suction means 58, arranged near the stopping position of the fore end of paper S, set at a predetermined position on the paper setting table 520 of the paper receiving unit 52 and treated by glue spreading treatment already, while air of the lower surface side of the paper S, discharged on the paper setting table 520, is sucked by the air sucking means 58 whereby the paper S is dropped quickly onto the paper setting table 520.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of applying a paste to a sheet which has been subjected to an image forming process and discharged from an image forming apparatus main body, in the vicinity of a side edge of the sheet during the sheet conveyance, in a linear manner. Gluing and binding equipment that aligns and presses to bind
And an image forming apparatus provided with a glue binding apparatus.

[0002]

2. Description of the Related Art In recent years, there has been provided a glue binding apparatus which performs a gluing process on a predetermined position of a sheet on which an image is recorded by a main body of an image forming apparatus such as a copying machine, a printer, or a multifunction machine of the same to perform bookbinding. I have.

[0003] As the glue binding apparatus, (1) a device that discharges glue onto paper using a glue discharge nozzle, (2) a glue wheel is installed in a glue storage box, and glue is attached to the outer periphery of the rotating glue wheel. Device that makes the outer periphery of the glue wheel contact the paper to transfer
(3) A hot melt coating device that discharges a mixture of a hot melt agent (heat fusing agent) and heated compressed air from a nozzle is used.

The gluing method and apparatus described in Japanese Patent Application Laid-Open No. 7-80377 is to blow high-pressure air onto glue discharged from a glue discharging nozzle to form a thin film.

[0005] The bookbinding apparatus described in JP-T-59-500907 deflects a sheet conveyed in a first direction in a second conveyance direction orthogonal to the conveyance direction, and then deflects the end of the traveling sheet. The glue is applied linearly to the portion, and after the stacking and alignment, pressure is applied to bookbinding.

[0006] The sheet conveying means in the conventional glue binding apparatus for discharging the sheet subjected to the glue application processing to the sheet storing section is to pinch and discharge the sheet by a conveying roller. The sheets applied and stacked in the sheet storage unit are simultaneously pressed in the glue application unit by the pressing bar.

[0007]

The conventional glue binding apparatus and image forming apparatus have the following problems.

(1) The sheet on which the glue application processing has been performed is conveyed onto the sheet mounting table in the sheet storage unit, the leading end of the sheet comes into contact with the leading end stopper, the width is aligned by the width aligning means, and the sheet falls by its own weight. When the paper is stacked on the preceding paper surface placed at the predetermined position, the paper is held horizontally by holding the flat surface due to the wind pressure at the time of the paper falling, the sliding contact resistance with the leading end stopper, the width alignment means, etc. It does not drop and causes paper misalignment. Also, due to the wind pressure, sliding contact resistance, etc., the paper does not immediately fall onto the paper mounting table, and interferes with the subsequently carried paper to cause a conveyance failure or a decrease in bookbinding finish quality. I do. If a time lag is provided to prevent this interference, the paper output from the image forming apparatus main body side is made to wait, and the productivity of high-speed processing is reduced.

(2) When an image-formed sheet discharged from the main body of the image forming apparatus at a high speed is introduced and aligned and pressurized by a glue binding apparatus that performs high-speed post-processing, the rear end of the sheet is under its own weight. In the free fall, it interferes with the paper trailing edge aligning and pressing means, resulting in a conveyance failure, a reduction in bookbinding finish quality, and the like. If a time lag is provided to prevent this interference, the paper output from the image forming apparatus main body side is made to wait, and the productivity of high-speed processing is reduced.

The present invention solves the above-mentioned problems, improves a glue binding apparatus, improves the productivity of sheet conveyance, and prevents the production of defective booklets, and an image forming apparatus equipped with the glue binding apparatus. The purpose is to provide.

[0011]

The above object is achieved by the following glue binding apparatus of the present invention.

(1) A glue applying means for applying glue in a linear manner on the paper surface by a glue discharging means while the paper discharged from the image forming apparatus is being conveyed, and a paper for receiving and stacking the glue-coated paper A storage unit, a paper transporting unit that feeds the paper that has been subjected to the glue application processing to a paper mounting table of the paper storage unit, a width alignment unit that aligns a width direction of the paper fed to the paper storage unit, and the paper mounting table Pressurizing means for pressing the uppermost surface of the glue application unit of the paper stack stacked thereon, in the glue binding apparatus, wherein the glue application processing is performed to be placed at a predetermined position on the paper mounting table of the paper storage unit. An air suction means is arranged near the stop position of the leading end of the paper, and the air on the lower surface side of the paper discharged onto the paper mounting table is sucked by the air suction means, whereby the paper is quickly moved to the paper mounting table. To drop it up Glue binding equipment.

(2) A glue applying means for applying glue in a linear manner on the paper surface by a glue discharging means while the paper discharged from the image forming apparatus is being conveyed, and a paper for receiving and stacking the glue-coated paper A storage unit, a paper transporting unit that feeds the paper that has been subjected to the glue application processing to a paper mounting table of the paper storage unit, a width alignment unit that aligns a width direction of the paper fed to the paper storage unit, and the paper mounting table And a pressurizing means for pressing the uppermost surface of the glue application section of the stack of paper sheets stacked thereon. In the glue binding apparatus, the upper face of the glue-coated paper is pressed above the paper entry side of the paper storage section. A gluing bookbinding apparatus, wherein a flexible thin film member is arranged.

An image forming apparatus according to the present invention includes an image forming apparatus main body including an image writing unit, an image forming unit, and a sheet conveying unit, and the glue binding apparatus according to the above (1) or (2). It is characterized by the following.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A description will now be given, with reference to the accompanying drawings, of a paper transport direction changing apparatus, a glue binding apparatus, and an image forming apparatus having a glue binding apparatus according to the present invention.

FIG. 1 is an overall configuration diagram of an image forming system including an image forming apparatus main body A, an image reading apparatus B, and a glue binding apparatus C.

The image forming apparatus main body A includes a charging means 2, an image exposing means (writing means) 3, a developing means 4, a transferring means 5, and a rotating image carrier (hereinafter referred to as a photosensitive body) 1.
After the charge removing unit 6A, the separating claw 6B, and the cleaning unit 7 are arranged, and the surface of the photoreceptor 1 is uniformly charged by the charging unit 2, the image data read from the original by the laser beam of the image exposing unit 3 A latent image is formed by performing an exposure scan based on the image, and the latent image is reversely developed by the developing unit 4 to form a toner image on the surface of the photoconductor 1.

On the other hand, the paper (transfer paper) S fed from the paper storage means 8A is sent to the transfer position. The toner image is transferred onto the sheet S by the transfer unit 5 at the transfer position. Thereafter, the charge on the back surface of the sheet S is erased by the charge removing means 6A, separated from the photoreceptor 1 by the separation claw 6B, transported by the intermediate transport section 8B, and subsequently heated and fixed by the fixing device 9, and then discharged by the discharge roller 8C. Is discharged.

When forming images on both sides of the sheet S,
The sheet S, which has been heated and fixed by the fixing device 9, is branched from a normal sheet discharge path by a transfer path switching plate 8D, is switched back in a reverse transfer 8E, is turned over, and is discharged out of the apparatus by a sheet discharge roller 8C. You. Discharge roller 8C
Received from the receiving unit 1 of the glue binding apparatus C
It is sent to 1.

On the other hand, the developer remaining on the surface of the photoreceptor 1 after the image processing is removed by the cleaning means 7 downstream of the separation claw 6B, and the surface is prepared for the next image formation.

The glue binding apparatus C comprises an aligning and pressing means 50 in the upper part of the drawing, a glue applying means 40 and a bending deviation correcting means 30 in the middle part, a sheet conveying direction changing device 20 in a lower part, and a cover sheet feeding means in the lowermost part. 70 are arranged in tandem in a substantially vertical direction.

On the right side of the glue binding apparatus C in the figure, an entrance transport means 10 is arranged. On the left side in the drawing of the glue binding apparatus C, there is disposed a paper discharging means 60 for discharging and stacking the glued bookbinding.

FIG. 2 is a configuration diagram showing a paper transport path of the glue binding apparatus C. FIG. 3 is a schematic diagram showing a process of gluing and binding the paper S.

(1) Receiving and Conveying The glue binding apparatus C is a receiving section 11 of the entrance conveying means 10.
Are installed so as to be adjusted to a position and height that match the paper discharge roller 8C of the image forming apparatus main body A. The image-formed sheet S discharged from the image forming apparatus main body A is received by the receiving unit 11.
And is branched by a switching gate G1 into an upper paper transport path 12 and a lower paper transport path 16.

Sheet S conveyed to upper sheet conveying path 12
Are transported by the transport rollers 131 and 132, are sandwiched by the discharge rollers 14, are discharged onto the fixed paper discharge tray 15 at the upper outside of the apparatus, and are sequentially stacked. The lower sheet transport path 16 includes transport rollers 171, 172, 173, a guide plate 174, and the like.

In the paper transport process, the switching gate G
Numeral 1 is swung by the drive of a solenoid (not shown) to close the paper transport path 16 and open the paper transport path 12 to allow the paper S to pass through the fixed paper discharge tray 15.

(2) 90 ° Rotation Processing of Sheet The image-formed sheet S discharged from the image forming apparatus main body A is supplied to the receiving section 11, the sheet transport path 16, and the transport roller 17.
1, 172, 173, and the sheet conveying direction changing device 2
It is sent to 0.

The paper S introduced into the paper transport direction changing device 20 passes through a paper transport path 21 and is transported by transport rollers 22 and 2.
3, 24, and 25, and travels in the left direction shown by the arrow in the figure.

When the central portion of the paper S reaches the paper rotating means 26, the paper transport is temporarily stopped, and the transport rollers 22 to 25 are stopped.
Is released, and the separated state is maintained. When the lower rotating disk 261 and the upper rotating disk 262 of the paper rotating unit 26 rotate while holding the paper S in a state where the pressure contact of the transport rollers 22 to 25 is released, the direction of the paper S is changed by 90 degrees. For example, A4 size paper S is supplied to the paper rotating unit 2.
6, the data is converted in the direction of A4R.

The paper transport direction changing device 20 is used to transfer the 9
The 0-degree rotation and the sheet S shifting process can be executed simultaneously or independently.

The paper S whose rotation direction has been changed is conveyed by the press-contact rotation of the conveyance rollers 22 to 25, is carried out of the paper conveyance direction changing device 20, is sandwiched by the conveyance rollers 27 and 28, and is substantially perpendicular to the drawing. The light is deflected upward, passes through the switching gate G2, is further deflected rightward in the figure, and is sent to the bending deviation correcting means 30.

The paper S that does not require the glue binding process passes through the paper transport path on the left side of the switching gate G2 by the driving of a solenoid (not shown), and the transport rollers 61 and 62.
, And is discharged by a discharge roller 63 to an elevating discharge tray 64 outside the apparatus.

(3) Deflection Correction Processing Deflection correction means 30 includes conveying rollers 31, 32, 33, and 34 that can pinch and release the sheet S, a sheet conveying path 35, an alignment reference plate 36, and an alignment correction. The sheet S before the glue coating process is brought into contact with the alignment reference plate 36 and is aligned on one side.

(4) Glue coating process on the paper S The paper S sent from the skew deviation correcting unit 30 to the glue applying unit 40 advances rightward as shown by the arrow in the figure. The paper transport path 42 of the glue applying unit 40 and the skew deviation correcting unit 30
Of the paper transport direction changing device 20
Is formed substantially in parallel with the paper transport path 21 of FIG. 1, and the transport direction of the paper S is opposite to the transport direction of the paper transport direction changing device 20.

The glue discharging means 41 stores glue supplied from a bag-shaped container (not shown), and discharges glue in a straight line or intermittent broken line shape on one side edge of the running paper S to apply a glue. Form N.

The paste used in the embodiment of the present invention is a vinyl acetate resin emulsion paste, and has a viscosity of 750 to 1500 mPa · s at room temperature.

The paper S that has been subjected to the glue application processing is nipped by the thin film forming roller 43 and the glue application section N is rolled to form a thin film, and then nipped and transported by the transport rollers 441, 442, and 443, and is guided by the guide plate. , And is discharged to the aligning and pressurizing unit 50 while being nipped by the discharge roller 46.

(5) Alignment Pressing Process The first sheet S not subjected to the glue coating process is supplied to the
0 of the front end stopper 53
The paper is placed at a predetermined position on the paper storage unit 52 by contacting the leading end of the paper storage unit. The gripper 51 moves while being supported by the rotating belt 54.

The second and subsequent sheets S that have been subjected to the glue coating process are:
Similarly, the paper is sandwiched by the gripping means 51 and is sequentially placed on the preceding paper S on the paper storage unit 52 with the glue application section N facing downward. Reference numeral 55 denotes a width aligning unit that can move in the width direction, and regulates the width direction of the sheet S.

The pressing roller member 56 is configured to rotate the belt 5.
4 and moves together with the gripping means 51. The pressure roller member 56 moves while pressing the glued back side of the paper S, and ensures adhesion between the papers.

The pressing of the sheet S by the pressing roller member 56 may be performed each time the second and subsequent sheets S are placed on the stacker 52. Alternatively, the pressing process may be performed each time a plurality of sheets S are stacked.

One booklet that has been subjected to the gluing process is produced by the above steps. In this glue binding apparatus C,
A maximum of 200 sheets S can be glued and bound.

(6) Discharge A plurality of discharge belts 57 wound around a driving roller 57A and a driven roller 57B are provided on the sheet stacking table of the sheet storage section 52.
C is disposed so as to be rotatable.

The last sheet S is stacked on the sheet storage section 52, subjected to pressure processing, and glued and bound into a booklet Sa.
Is held at the rear end of the booklet Sa by the discharge claw 57D of the discharge belt 57C, slides on the mounting surface of the paper storage unit 52, is sandwiched by the discharge rollers 63 of the discharge means 60, and moves up and down. The paper is discharged and stacked on the paper discharge tray 64.

A booklet Sa that has been subjected to a glue application process and a sheet S that has not been subjected to a glue application process can be stacked in the elevating discharge tray 64, and a large amount of the paper S can be accommodated by the elevation drive.

(7) Cover Paper Feeding The cover paper feeding means 70 comprises a paper feeding cassette 71 and a paper feeding member 72. One cover sheet K fed from the sheet feeding cassette 71 is fed to the sheet feeding path 73
4 and is sent to the paper conveyance direction changing device 20;
After the skew correction means 30, the glue applying means 40 and the aligning and pressurizing means 50 glue and bind on the upper or lower surface of the above-mentioned sheet bundle.

(Gluing Pattern) FIG. 4 is a plan view showing various glue coating sections formed near the side edge of the sheet S.
FIG. 4A shows a continuous linear glue application section N1. FIG. 4B shows a glue application portion N2 in a broken line shape having a predetermined length and interval. FIG. 4C shows a dotted-line glue application portion N3 intermittent with a predetermined interval. FIG. 4D shows a linear glue application section N4 formed on the short side of the sheet S.

The linear glue application sections N1 and N4 firmly adhere between the sheets over the entire length near the side edge of the sheet S, so that the booklet Sa has durability and good finish quality.
Both the dashed glue application section N2 and the dotted glue application section N3 have a small adhesive application area, so the adhesive strength between the sheets is weaker than the glue application sections N1 and N4, and the tensile strength is slightly lower. There is little occurrence of paper waving after the glue application processing. Further, since the adhesive force between the sheets is weak, the sheets can be easily peeled off after the adhesive treatment. Therefore, after the papers are temporarily fixed and bonded, the papers are separated and the operations such as rearranging, removing, and inserting the papers S can be easily performed without damaging the papers S. Suitable for distribution.

(Glue Discharging Means) FIG. 5 is a sectional view of the glue discharging means 41.

The glue discharging means 41 has an opening 4 for discharging glue.
It comprises a nozzle member 411 having 11a, a movable needle 412 for opening and closing the opening 411a, a casing 413 for movably housing the needle 412, a solenoid SL for movably driving the needle 412, and the like.

The return spring 415 is inserted between the bottom of the housing 414 of the glue discharging means 41 and the upper surface of the flange 412b, and presses the needle 412 downward. When the solenoid SL is not operated, the tip 412 a of the needle 412 closes the opening 411 a of the nozzle member 411 by the return spring 415.

When a voltage is applied to the solenoid SL, the plunger SLa is moved upward, the needle 412 directly connected to the plunger SLa is pulled up, and the nozzle member 41 is pulled up.
The first opening 411a is opened to enable the paste discharge.

On the side of the casing 413, the inlet member 41 is provided.
7 is fixed, and the glue supplied from a glue supply device (not shown) is introduced into the glue accommodating chamber 413a via the supply pipe 418.

(First Embodiment) FIG. 6 is a sectional view of the alignment pressing means 50.

The paper transport means for gripping and transporting the leading end of the paper S comprises gripping means 51 for gripping the leading edge of the paper S, and moving means for linearly moving the gripping means 51 in the paper transport direction.

The moving means includes a driving pulley 541 connected to a driving source, an endless belt 54 wound around the driving pulley 541 and a driven pulley 542 wound around the belt 54 and driven to rotate. The gripper 51 is fixed to a part of the belt 54 by a locking member 513, and rotates together with the belt 54.

The gripping means 51 includes a traveling body 510 fixed by the locking member 513, a first gripping member 511 fixed to the bottom of the traveling body 510, and a first gripping member 511 which can be pressed and separated from the tip of the first gripping member 511. It has two gripping members 512.

The second gripping member 512 is swingably supported by a shaft 514 implanted in the traveling body 510. The second gripping member 512 is urged by the spring 515 and presses against the first gripping member 511. In this pressed state, the first
The leading end of the holding member 511 and the leading end of the second holding member 512 hold the leading end of the sheet.

A first cam member 521 is fixed to the apparatus main body in the vicinity of the entrance of the sheet storage section 52. A second cam member 522 is movably supported in the vicinity of the leading end of the paper S stacked on the paper mounting table 520 of the paper storage unit 52 according to the paper size.

The roller 516 rotatably supported on the upper part of the second gripping member 512 can be in rolling contact with the first cam member 521 and the second cam member 522.

Moving body 52 supporting second cam member 522
3 is locked via a locking member 525 to a belt 54 rotated forward and backward by a motor M1 and reciprocates with the belt 54. The motor M1 moves and stops the moving body 523 to a position corresponding to the paper size.

The motor M2 fixed to the moving body 523 is
The tip stopper 53 is swung through the gear train. When the leading end stopper 53 is held in the hanging state, the leading end of the sheet S comes into contact with the leading end stopper 53, and the leading end is positioned. After aligning and pressing the sheet bundle to produce a booklet Sa,
The leading end stopper 53 is oscillated by the motor M2 and retracts upward to allow the booklet Sa to be discharged.

The motor M3 rotates the belt 526 via a reduction gear train. Belt 526 and paper table 52
0 is locked by a locking member 527 to one end.
The motor M4 rotates the belt 528 via a reduction gear train. The belt 528 and the other end of the paper mounting table 520 are locked by a locking member 529. Belt 52
The paper loading table 520 can be moved up and down by the rotation of 6,528.

The motors M3 and M4 are driven in synchronization with each other, and guide the sheet mounting table 520 up and down by being guided by guide means (not shown).

In the direction orthogonal to the sheet transport direction of the sheet storage section 52, there is arranged a width adjusting means 55 comprising a fixed alignment reference member 551 and an alignment correcting member 552 movable in the width direction of the sheet S. ing. The alignment correcting member 552 is moved in a direction perpendicular to the sheet conveying direction by a driving unit (not shown).

FIG. 7 is a perspective view of the paper storage unit 52 showing a state in which the paper S is conveyed onto the paper mounting table 520, and FIG. 8 is a partial sectional view.

The tip stopper 53 can swing about a shaft 53a and is driven by a motor M2. A large number of air inlets 53c are formed in the paper front end contact surface 53b of the front end stopper 53. Paper leading end contact surface 53
On the back surface of b, the intake housing 581 of the air suction means 58 is fixed closely.

An inlet opening 582 formed above the inside of the intake housing 581 communicates with an intake pipe 583 and is further connected to intake means 584 such as a blower and a suction pump.

When the leading end of the paper S gripped and conveyed by the gripping means 51 comes into contact with the leading edge stopper 53, the gripping by the gripping means 51 is released, and the paper S falls by its own weight. When the sheet falls, the decompressed air by the suction means 584 is supplied to the suction pipe 583, the inlet opening 582, and the suction housing 58.
After 1, the air outside the intake port 53c is sucked. Due to the suction operation of the air suction means 58, the falling sheet S is quickly placed on the sheet bundle on the sheet placing table 520. Therefore, when the sheet falls, the tip stopper 53, the alignment reference member 551, and the alignment correction member 552 are forcibly dropped due to the sliding contact resistance. Therefore, the sheet is accurately and quickly placed at a predetermined position on the sheet placing table 520. This is effective for preventing poor alignment and ensuring productivity.

(Second Embodiment) FIG. 9 is a cross-sectional view of the sheet storage section 52 in the vicinity of a sheet entry section.

The paper rear end aligning and pressing means 59 for pressing and pressing the rear end of the paper S discharged to the paper mounting table 520 to align the paper has a pressing member 591. Pressing member 59
Reference numeral 1 denotes a vertically movable unit and a movable unit that can be moved in a vertical direction by a driving unit.

The moving member 592 fixed to the back side of the pressing member 591 is driven by a motor M5 for alignment, and is horizontally movable in the sheet conveying direction and in the opposite direction via a driving means. The elevating member 593 holding the motor M6 includes an elevating motor M5, gears g1 and g2, a rotating disc 594,
The crank lever 596 vertically moves up and down.

The process of raising and lowering and horizontally moving the pressing member 591 will be described below. (Up) The up-and-down motor M5 is driven to drive the gear g
The rotating disk 594 is rotated via 1 and g2. The eccentric pin 595 implanted at the eccentric position of the rotating disk 594 drives the crank lever 596 to raise the elevating member 593 vertically upward. The pressing member 591 mounted on the elevating member 593 also moves up to reach the position indicated by the one-dot chain line in the figure.

(Alignment) The aligning motor M6 is driven to horizontally move the moving member 592 movably mounted on the elevating member 593 in the sheet transport direction. Moving member 59
The pressing member 591 fixed to 2 also moves horizontally and reaches the position shown by the broken line in the figure. Due to the horizontal movement of the pressing member 591, the vertical surface 591 a of the pressing member 591 presses the rear end of the sheet S, and the front end of the sheet S comes into contact with the front end stopper 53, thereby aligning the sheet S in the transport direction. .

(Descent) The motor M5 for ascending and descending is driven in the reverse direction to rotate the rotating disk 594, and the crank lever 5
96 is driven to lower the elevating member 593 vertically downward. The pressing member 591 mounted on the elevating member 593 also moves down to reach the position indicated by the solid line in the drawing. At the bottom dead center of the lowering operation, the elastic member 597 fixed to the lower surface of the leading end of the pressing member 591 presses the upper surface near the rear end of the preceding bundle of sheets stacked on the sheet mounting table 520, and reliably. Hold.

The paper trailing end aligning and pressing means 59 positions the sheet S discharged to the paper storage section 52 by the leading end stopper 53 and the vertical surface 591 a of the pressing member 591, and the vicinity of the rear end of the sheet bundle by the elastic member 597. After pressing the top of
The pressure roller member 56 moves by pressing against the back side of the glue application portion N of the paper S. When the sheet bundle is pressed by the pressure roller member 56 that rotates and moves horizontally and presses the glue application section N, the top layer of the sheet bundle is prevented from shifting and wrinkling due to holding of the sheet rear end portion. Is done.

(To HP) After the completion of the alignment and pressurizing operations, the aligning motor M6 is driven in the reverse direction to move the moving member 592 horizontally in the direction reverse to the sheet conveying direction, and return to the initial position (home position HP). Let it return.

Above the paper entry side of the paper storage section 52,
A flexible thin film member 598 is disposed. The vicinity of the upper end of the flexible thin film member 598 forms a fixed end bonded to the support member 599 with a double-sided adhesive tape or the like. The lower portion of the flexible thin film member 598 is inclined downwardly with respect to the paper transport path, and the lower end portion of the flexible thin film member 598 is a free end that presses the upper surface of the glued coated paper S to be transported. It is.

The flexible thin film member 598 is formed of a sheet-like polyethylene terephthalate (PET), and has, for example, a rectangular shape having a thickness of 0.1 to 0.3 mm, a width of 20 to 30 mm, and a length of 100 to 200 mm. . The flexible thin-film member 598 has a larger adhesive coating portion N than the central portion in the sheet width direction.
It is better to be installed on the opposite side. Further, a plurality of sheets may be provided in the sheet width direction.

The leading end of the sheet S entering above the sheet entering side of the sheet placing table 520 is grasped by the grasping means 51 and advances in the direction indicated by a white arrow. When the trailing end of the sheet S passes through the holding position of the discharge roller 46, the flexible thin film member 59
The vicinity of the rear end of the sheet S is immediately forcibly dropped and placed on the sheet placement table 520 side by the urging force of the downward direction of the sheet 8.

By the forced drop near the rear end of the sheet, the pressing member 591 of the sheet rear end aligning and pressing means 59 is adjusted.
Is prevented, and paper conveyance failure is eliminated. In particular, in the glue binding apparatus C that introduces paper discharged from the image forming apparatus main body A capable of high-speed processing and performs high-speed post-processing, the vicinity of the rear end of the paper is forcibly dropped to align the width of the paper, High-speed productivity is ensured by performing the edge alignment and pressurization processing quickly and stably.

The glue binding apparatus C of the present invention is connected to an image forming apparatus such as a copying machine, a printer, or a multifunction machine of these. Desired digital processing is performed by the image forming apparatus,
After performing processing such as single-sided recording, double-sided recording, and page editing, and fixing the paper, the discharged paper is subjected to accurate and efficient paper conveyance and gluing by the image forming apparatus equipped with the glue binding apparatus C of the present invention. We are bound.

[0083]

As apparent from the above description, the following effects can be obtained by the glue binding apparatus and the image forming apparatus of the present invention.

(1) In the glue binding apparatus according to the first aspect of the present invention, the falling sheet is quickly placed on the sheet bundle on the sheet placing table by the suction operation of the air suction means provided near the leading end stopper. Place. Therefore, when the sheet falls, the sheet is forcibly dropped against the sliding contact resistance of the leading end stopper, the alignment reference member, and the alignment correction member. It is effective for prevention and ensuring productivity.

(2) In the glue binding apparatus according to the second and third aspects of the present invention, the interference between the rear end of the paper and the pressing member of the rear end aligning and pressing means due to the forced drop near the rear end of the paper. This prevents paper conveyance failure. In particular, in a glue binding apparatus that performs high-speed post-processing by introducing paper discharged from the image forming apparatus main body capable of high-speed processing, the vicinity of the rear end of the paper is forcibly dropped to align the width and the rear end of the paper. ,
High-speed productivity is ensured by performing the pressurizing process quickly and stably.

(3) The image forming apparatus provided with the glue binding apparatus according to the fourth aspect of the present invention uses the glue binding apparatus to form a uniform glue applying section on a sheet conveyed at a high speed from the image forming apparatus. To perform stable paper conveyance, alignment, and pressurization processing, continuously and automatically perform bookbinding processing with high productivity at a high speed, and produce a high-quality booklet.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of an image forming system including an image forming apparatus main body, an image reading device, and a glue binding device.

FIG. 2 is a configuration diagram illustrating a sheet transport path of the glue binding apparatus.

FIG. 3 is a schematic diagram showing a process of gluing and binding to paper.

FIG. 4 is a plan view showing various glue application sections formed near the side edges of the sheet.

FIG. 5 is a sectional view of the glue discharging means.

FIG. 6 is a cross-sectional view of an alignment pressing unit.

FIG. 7 is a perspective view of a sheet storage unit showing a state in which sheets are conveyed onto a sheet mounting table.

FIG. 8 is a partial cross-sectional view of a paper storage unit.

FIG. 9 is a cross-sectional view of the vicinity of a paper entry portion of the paper storage unit.

[Explanation of symbols]

 40 Glue application means 41 Glue discharge means 46 Discharge roller 50 Alignment and pressurization means 51 Holding means 52 Paper storage section 520 Paper placement table 53 Lead stopper 53b Paper leading end contact surface 53c Inlet port 55 Width alignment means 56 Pressure roller member 57 Discharge Means 58 Air suction means 581 Suction housing 582 Inlet opening 583 Suction pipe 584 Suction means 59 Paper rear end alignment pressing means 591 Pressing member 598 Flexible thin film member 599 Support member A Image forming apparatus main body C Glue binding apparatus S Paper Sa Booklet

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B65H 31/26 B65H 31/26 (72) Inventor Katsunori Takahashi 2970 Ishikawacho, Hachioji-shi, Tokyo Konica Corporation (72) Inventor Toshitaka Matsumoto 3-51-4 Kanamecho, Toshima-ku, Tokyo F-term (reference) 3F054 AA01 AC01 BA02 BB08 BB16 BH05 BH08 BH14 3F101 FC18 LA01 LB03

Claims (4)

[Claims] 1. A glue applying means for applying glue on a paper surface in a linear manner by a glue discharging means while a paper discharged from an image forming apparatus is being conveyed, and a paper storage for receiving and stacking the glue-coated paper. Unit, paper transporting means for feeding the paper coated with glue to the paper mounting table of the paper storage unit, width alignment means for aligning the width direction of the paper fed to the paper storage unit, and Pressurizing means for pressing the uppermost surface of the glue application section of the sheet bundle loaded on the sheet bundle, the glue binding apparatus having a pre-applied glue that is placed at a predetermined position on the paper mounting table of the paper storage section. An air suction means is arranged near the stop position of the leading end of the paper, and the air on the lower surface side of the paper discharged onto the paper mounting table is sucked by the air suction means to quickly hold the paper on the paper mounting table. It is characterized by being dropped on Glue binding equipment. 2. A glue applying means for applying glue on a paper surface in a linear manner by a glue discharging means while a paper discharged from an image forming apparatus is being conveyed, and a paper storage for receiving and stacking the glue-coated paper. Unit, paper transporting means for feeding the paper coated with glue to the paper mounting table of the paper storage unit, width aligning means for aligning the width direction of the paper fed to the paper storage unit, and Pressurizing means for pressing the uppermost surface of the glue application section of the sheet bundle loaded on the sheet bundle, and presses the upper surface of the paper on which the glue application processing has been performed, above the paper entry side of the paper storage section. A glue binding apparatus, wherein a flexible thin film member is arranged. 3. The glue binding apparatus according to claim 2, wherein the flexible thin film member is a sheet-like polyethylene terephthalate. 4. An image forming apparatus main body comprising an image writing unit, an image forming unit, and a sheet conveying unit, and a glue binding apparatus according to any one of claims 1 to 3. Image forming device.