JP2002283769A - Apparatus and method for gluing and bookbinding as well as image forming apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for gluing and bookbinding by which forming of a sheet bundle and adjustment and adhesion of a front and a back cover are secured, the deterioration in the finishing quality of bookbinding is prevented, and the productivity at a high speed processing is maintained, and to provide a gluing and bookbinding method, and an image forming apparatus equipped with a gluing bookbinding apparatus. SOLUTION: The gluing and bookbinding apparatus is provided with a sheet bundle producing apparatus C1 wherein a gluing unit N is formed in a straight line on a sheet surface by a first glue ejection means 80A during conveying the sheets S discharged out of the image forming apparatus body A, the sized sheet S is conveyed to and loaded on a sheet loading table 41, and a sheet bundle Sa is formed by pressing the gluing unit N between sheets, and a wrapping/bookbinding production apparatus C2 connected to the sheet bundle producing apparatus C1, receives the sheet bundle Sa formed by the sheet bundle producing apparatus C1, and wraps and adheres the side end part of the front cover surface side of the sheet bundle Sa and the side end part and the back of the back cover surface side with the sized front cover Ka.

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 book-form glue to a sheet on which image forming processing has been performed, in the vicinity of a side edge of the sheet, and covering the spine of the sheet bundle and its vicinity with a cover. The present invention relates to a glue binding apparatus and a glue binding method, and particularly to a glue binding apparatus, a glue binding method, and a glue suitable for being connected online to an image forming apparatus such as a copying machine, a facsimile apparatus, a printer, or incorporated in the image forming apparatus. The present invention relates to an image forming apparatus provided with a bookbinding device.

[0002]

2. Description of the Related Art Generally, paper on which an image is recorded by a main body of an image forming apparatus such as a copying machine, a facsimile machine, a printer, and a multifunction peripheral thereof is subjected to post-processing such as punching, stapling, and saddle stitching. Various processes such as folding, attaching a cover, folding, stamping, and glue binding are performed.

[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;
(4) a tape sticking device for sticking one side edge of a sheet bundle while heating a tape to which adhesive paste is applied in advance;
Etc. are 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.

As the bookbinding method using a backside tape, there is a method in which a tape on which adhesive having adhesive property is applied before heating is applied while heating or a tape on which adhesive having adhesive property is applied in advance containing water is used. It has been known.

[0007] A conventional tape sticking method is disclosed in
No. 2,847,795, U.S. Pat. No. 4,985,729
JP-A-3-151286, JP-A-6-115
No. 275, and the like.

[0008]

The conventional glue binding apparatus has the following problems.

(1) In the backside tape bonding method, a tape is stuck on the spine of a sheet bundle and then folded on the front cover side and the back cover side. If the tape can be attached with high reliability, the structure of the device becomes complicated and the device becomes large.

(2) The method of wrapping a sheet bundle and bonding the back side of the sheet bundle with the front cover and the back cover integrated with the front cover requires a cover length corresponding to the maximum thickness of the sheet bundle. It is necessary to use a special large-sized cover sheet and, after bonding the cover sheet, a step of cutting and removing an extra cover part protruding from the sheet bundle.

(3) A glue binding apparatus for producing a high-quality bookbinding by aligning a sheet bundle, a front cover, and a back cover at high speed and accurately is complicated and large in size.

(4) Since the paper discharged from the main body of the image forming apparatus is glued and bound at a high speed, the structure of the apparatus becomes complicated and large in order to maintain high-speed productivity.

(5) A booklet produced by heat bonding with a hot melt coating device cannot be reused as recycled paper.

(6) A sheet bundle producing mechanism for conveying and stacking the sheets coated with the glue and pressing the glue application section between the sheets to form a bundle of sheets, a front side and a back side of the sheet bundle. When a case binding production mechanism that wraps and attaches the back with a cover is accommodated in an integrated glue binding apparatus, a waiting time occurs in the glue binding process, and the productivity of bookbinding decreases.

The present invention solves the above-mentioned problems and improves a glue binding apparatus, and ensures formation of a sheet bundle and alignment and adhesion of a front cover and a back cover, thereby preventing a decrease in bookbinding finish quality. An object of the present invention is to provide a glue binding apparatus, a glue binding method, and an image forming apparatus provided with a glue binding apparatus that maintain the productivity of high-speed processing.

[0016]

The above object is achieved by the following apparatus and method of the present invention.

(1) While the paper discharged from the main body of the image forming apparatus is being transported, a linear glue application section is formed on the paper surface by the glue discharging means, and the glue-coated paper is transported to the paper mounting table. And a sheet bundle producing apparatus for forming a sheet bundle by pressing the glue application section between the sheets, and receiving the sheet bundle formed by the sheet bundle producing apparatus and connected to the sheet bundle producing apparatus. And a case binding production apparatus for wrapping and bonding the side edge on the front side of the sheet bundle and the side edge and the back side on the back side of the sheet bundle with a cover coated with glue. Bookbinding equipment.

(2) In a glue binding method for wrapping and gluing a front side, a back side, and a back of a bundle of sheets with a front cover and a back cover to produce a booklet, the front cover is supplied by a cover feeding means. After forming a glue application section on a predetermined area of the front cover by glue discharging means, placing the glue on a predetermined position on a paper loading table by a transport means, and then forming the Conveyed on the cover, first, glue the glue application part of the cover and the front side of the sheet bundle,
A first fold is formed on the cover, the back of the sheet bundle and the glue application portion of the cover corresponding to the back are bonded, and a second fold is formed on the cover along the upper surface of the sheet bundle. A fold is formed, and the upper surface side edge of the sheet bundle and the glue application portion of the front cover corresponding to the upper surface side edge are bonded to each other. A linear glue application section is formed by a discharge unit, and is conveyed, placed, and adhered to the upper surface of the cover folded back along the first fold by the conveyer, and then the cover, the sheet bundle, and the back are formed. A glue binding method, wherein a glue binding portion is produced by pressing a glue application portion of a cover.

(3) 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 (1). It is a feature.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a glue binding apparatus according to the present invention,
An image forming apparatus provided with a glue binding apparatus will be described with reference to the drawings.

[One Embodiment of Image Forming Apparatus] 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, a first glue binding apparatus C1, and a second glue binding apparatus C2. It is.

The main body A of the image forming apparatus comprises a charging means 2, an image exposure means (writing means) 3, a developing means 4, and a transfer means 5 around a rotating image carrier (hereinafter, referred to as a photosensitive body) 1.
A, the charge removing means 5B, the separating claw 5C, and the cleaning means 6 are arranged, and the surface of the photoreceptor 1 is uniformly charged by the charging means 2 and thereafter, the image read from the original by the laser beam of the image exposing means 3 A latent image is formed by performing exposure scanning based on the data, 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 transfer paper (hereinafter referred to as paper) S fed from the paper storage means 7A is sent to the transfer position.
At the transfer position, the toner image is transferred onto the sheet S by the transfer unit 5A. After that, the paper S is discharged by the discharging means 5B.
As a result, the charge on the back surface is erased, separated from the photoreceptor 1 by the separation claw 5C, conveyed by the intermediate conveyance unit 7B, subsequently heated and fixed by the fixing unit 8, and discharged by the paper discharge roller 7C.

When forming an image on both sides of the sheet S,
The sheet S, which has been heated and fixed by the fixing unit 8, is branched from a normal sheet discharge path by a transfer path switching plate 7D, is switched back in a reverse transfer 7E, is turned over, and is discharged outside the apparatus by a sheet discharge roller 7C. You. Discharge roller 7C
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 6 downstream of the separation claw 5C, and the surface is prepared for the next image formation.

An image reading device B provided with an automatic document feeder of a document moving type reading system is provided above the image forming device main body A.

[Gluing and Binding Apparatus] The gluing and binding apparatus is composed of a first gluing and binding apparatus C1 connected to the paper discharge section of the image forming apparatus main body A, a sheet discharge port of the first glue and binding apparatus C1, and a sheet bundle discharge. Second glue binding apparatus C2 connected to the outlet
Consisting of

[First glue binding apparatus C1] FIG.
1 is a front sectional view of a glue binding apparatus (sheet bundle producing apparatus) C1.

The first glue binding apparatus C1 includes a top direct discharge unit 10, a horizontal transfer unit 20A below it, a direction change transfer unit 30A, a sheet storage unit 40A, and a discharge unit 50.
A, a paper transport device including a first paper supply unit (cover cover paper supply unit) 70A, a second paper supply unit (back cover paper supply unit) 70B, a first glue discharge unit 80A, and a glue supply device 89 Have been.

The sheet S introduced into the receiving section 11 is selected by the switching plate 12 to either the upper direct sheet discharging means 10 or the horizontal conveying means 20A.

The paper S directly introduced into the paper discharging means 10 is
The sheet is conveyed upward, is nipped by the conveying rollers 13 and 14, and is discharged onto the fixed sheet discharge tray 16 by the discharge roller 15.

When the shift mode or the non-sort mass discharge mode is set, the switching plate 12 directly closes the transport path of the paper discharge means 10, opens the transport path of the horizontal transport means 20 A, and allows the sheet S to pass. enable. Horizontal transfer means 20A
The paper S introduced into the transport rollers 21, 22, 23,
The sheet S that is pinched and conveyed by the sheet 24 and is not subjected to the glue coating process is pinched by a sheet discharge roller 26 via a shift unit (not shown), and is introduced from a top discharge port 27 into a second glue binding apparatus C2 described below. . Second glue binding apparatus C
The paper S, which has not been subjected to the glue coating process, is transported while being pinched and transported by the horizontal transport means 20B.
1 through the upper discharge port 62 and the elevating discharge tray 6 outside the machine.
3 is discharged. On the elevating sheet discharge tray 63, for example, a maximum of 3000 sheets S can be stacked.

FIG. 3 is a side cross-sectional view of the first glue binding apparatus C1, FIG. 4 is a plan view, and FIG. 5 describes the paper transport path and glue application process during the glue application process. FIG.

When the mode is set to the glue binding process in which the sheet is orthogonally U-turned by the direction changing / conveying means 30A, the sheet S discharged from the image forming apparatus main body A is as shown in FIG.
Conveying roller 21 driven and rotated by a motor M1 shown in FIG.
-24 to be conveyed. When the leading end of the sheet S comes into contact with the positioning member 25, the bending of the sheet S is corrected, and positioning is performed in the transport direction (the first transport path X1 in the direction of the arrow in FIGS. 2, 4, and 5). Thereafter, the driving of the motor M1 is stopped, and the upper rollers of the transport rollers 21 to 24 are retracted upward from the sheet surface by a driving means (not shown) to release the pressure contact.

Further, the sheet S is nipped by conveying rollers 31 and 32 driven and rotated by a driving source (not shown),
The sheet is conveyed in the conveyance direction deflected by an angle (the second conveyance path Y1 in the direction indicated by the arrow in FIGS. 3 to 5). The paper S is continuously nipped by the transport rollers 33 and 34, transported in a U-turn, and sent to the paper storage unit 40A (third direction in the arrow direction in FIGS. 3 to 5).
Transport path Z).

(Glue coating process on paper S) The first glue discharging means 80A is driven by the transport rollers 31-34 to the second transport path Y.
Glue is discharged in a linear or broken line shape on one side edge of the paper S traveling from the first transport path Z to the third transport path Z to form a glue application portion N on the upper surface of the paper S (see FIG. 7).

The first sheet S is not subjected to the glue coating process.
The paper is nipped and transported by the transport rollers 33 and 34 of the direction changing transport unit 30A, sent to the fourth transport path Y2, and placed on the paper loading table 41. The subsequent second and subsequent sheets S that have been subjected to the glue coating process are nipped and transported by the transport rollers 33 and 34 and stacked on the preceding sheet.

(Glue discharging means) FIG. 6 shows the first glue discharging means 8.
It is sectional drawing of OA and 2nd glue discharge means 80B. In addition,
Since the first paste discharging means 80A and the second paste discharging means 80B have the same configuration, the paste discharging means 80A will be described below as a representative.

The first glue discharging means 80A has a nozzle member 81 having an opening 81a for discharging glue, a movable needle member (hereinafter, referred to as a needle) 82 for opening and closing the opening 81a, and a needle 82 movable. The housing 83 includes a solenoid SL that drives the needle 82 so as to be movable, and the like.

The return spring 85 is inserted between the bottom of the housing 84 of the first glue discharging means 80A and the upper surface of the flange portion 82b, and presses the needle 82 downward. When the solenoid SL is not operated, the return spring 85 causes the needle 8 to move.
The second end 82 a closes the opening 81 a of the nozzle member 81.

When a voltage is applied to the solenoid SL, the plunger SLa is moved upward, the needle 82 directly connected to the plunger SLa is pulled up, and the opening 81a of the nozzle member 81 is opened to allow the paste to be discharged.

An inlet member 87 is fixed to a side surface of the casing 83, and introduces the glue supplied from a glue supply device 89 described later into the glue accommodating chamber 83a through a supply pipe 88.

(Glue Application Section) FIG. 7 is a plan view showing various glue application sections formed near the side edges of the sheet S. FIG.
(A) shows a continuous linear glue application section N1. FIG.
(B) shows a broken-line-shaped glue application portion N2 intermittently having a predetermined length and interval. FIG. 7 (c) shows a dotted line glue application section N3 intermittently with a predetermined interval. FIG. 7D 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 papers over the entire length near the side edge of the paper S, so that the booklet 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.

(Attachment of cover sheet) When a cover sheet (front cover or back cover) of the same size as the sheet bundle Sa is attached to the sheet bundle Sa, the cover sheet is attached to the lower part of the first glue binding apparatus C1. The cover sheet is supplied from the disposed first paper supply means 70A or the second paper supply means 70B. The paper feed cassette 71A of the first paper feed unit 70A or the paper feed cassette 7 of the second paper feed unit 70B
1B is fed by the paper feed unit 72A or 72B, passes through the transport rollers 73 and 74, is transported by the horizontal transport unit 20A, and is then glued by the first glue discharge unit 80A. The cloth portion N is formed and sent to the paper storage portion 40A via the direction changing / conveying means 30A.
The sheet is attached to the uppermost surface of the sheet bundle Sa (see FIG. 2).

The paste used in the embodiment of the present invention is an aqueous emulsion paste, for example, a vinyl acetate resin emulsion paste, and has a viscosity of 750 to 1500 mPa · s at room temperature. The sheet bundle Sa bonded by the water-soluble glue is
It can be reused as recycled paper.

(Loading, Alignment, and Pressing of Sheets S) (See FIGS. 4 and 6) The first sheet of paper S that has not been subjected to the glue application processing is nipped and conveyed by conveying rollers 33 and 34 that are driven and rotated. The sheet is conveyed to the fourth conveyance path Y2 and is placed on the sheet table 41. The subsequent second and subsequent sheets S that have been subjected to the glue application processing are nipped and conveyed by the conveying rollers 33 and 34, conveyed to the fourth conveying path Y2, and stacked on the preceding sheet S on the sheet mounting table 41. .

That is, the leading end of the sheet S nipped and conveyed by the conveying rollers 34 is gripped by gripping means (grippers) 43 held by the rotating endless belt 42, and the upper part of the sheet placing table 41 is moved upward. The sheet is transported to the four transport path Y2. The pressurizing unit 44 held by the moving gripping unit 43 presses and moves the back side of the glue application unit N forming surface of the preceding sheet bundle Sa placed on the sheet placing table 41, and moves between the sheets. Ensure adhesion. The leading end of the sheet S gripped by the gripping means 43 contacts the leading edge stopper 45 and the leading edge is aligned. The tip stopper 45 can be moved by driving means (not shown).
It stops at a predetermined position according to the size setting of the paper S. Paper S
The rear end of the paper aligning and pressing means 4 which is movably driven
6, the rear end of the paper is aligned and the upper surface of the rear end of the paper is pressed. Both end portions of the sheet S are positioned by the width matching means 47. The alignment and positioning of the leading end, the trailing end, and both sides of the sheet S are performed before the pressing process by the pressing unit 44. The pressing process of the sheet S by the pressing unit 44 may be performed each time the second and subsequent sheets S are placed on the sheet placing table 41. Alternatively, the pressing process may be performed each time a plurality of sheets S are stacked.

The above-described process completes one sheet bundle Sa that has been glued. This first glue binding apparatus C1
Then, for example, a maximum of 200 sheets S can be glued and bound.

(Discharge from First Gluing and Binding Apparatus C1) A plurality of discharge belts 53 wound around a driving roller 51 and a driven roller 52 are provided on a part of the sheet stacking surface of the sheet mounting table 41. It is arranged rotatably.

The last sheet S is stacked on the sheet mounting table 41, subjected to pressure processing, and glued and bound.
The paper bundle discharge roller 5 slides on the mounting surface of the paper mounting table 41 while the rear end of the paper bundle Sa is held by the discharge claw 53a of the discharge belt 53 rotated by the motor M2.
4 and is discharged from the lower discharge port 55 to the entrance of the second glue binding apparatus C2 and introduced (fifth transport path X2 in the direction of the arrow in FIG. 5). Prior to the sheet discharging process, the pressing unit 44 and the width aligning unit 47 are retracted above the transport path by a driving unit (not shown).

[Second Glue Binding Apparatus C2] The glue binding apparatus of the present invention is a first glue binding apparatus (sheet bundle producing apparatus) C1 for producing a bundle of sheets Sa by gluing and binding between sheets.
And a second glue binding device (case binding making device) C2 for gluing and binding the front and back covers on the front and back and back of the sheet bundle Sa to produce the booklet Sb.

FIG. 8 is a schematic perspective view for explaining the paper transport path and the glue applying process in the glue applying process in the first glue binding apparatus C1 and the second glue binding apparatus C2. FIG. 9 is a schematic perspective view showing a sheet transport path and a glue applying process of the second glue binding apparatus C2. FIG. 10 is a front sectional view of the second glue binding apparatus C2.

In these figures, horizontal transport means 20B, which constitute a paper transport path of the second glue binding apparatus C2,
Direction changing conveyance means 30B, paper storage unit 40B, and second
The components constituting the glue discharging means 80B are the horizontal transport means 20A, the direction changing transport means 3 of the first glue binding apparatus C1.
0A, the paper storage unit 40A, and the members constituting the first glue discharging means 80A have substantially the same configuration. Therefore, members having the same functions as those of the first glue binding apparatus C1 are denoted by the same reference numerals. Is omitted.

The sheet S not subjected to the glue binding process or the sheet S subjected to the shift process is conveyed by the horizontal conveying unit 20A and the horizontal conveying unit 20B, is sandwiched by the discharge rollers 61, and is discharged from the upper discharge port 62. External lifting tray 6
3 (see FIGS. 2 and 3).

The sheet bundle Sa produced by the first gluing and binding apparatus C1 is conveyed by the discharging means 50A, discharged from the lower discharge port 55, and is discharged by the second gluing and binding apparatus C2.
And is conveyed by the discharge means 50B, discharged from the lower discharge port 65, and placed on the elevating discharge tray 63 outside the machine (see FIGS. 2 and 3).

The mechanism of the case binding production function includes a horizontal transport unit 20B, a direction changing transport unit 30B, and a paper storage unit 40.
B, a crease roller 91, a second glue discharging unit 80B, a first paper feeding unit (front cover paper feeding unit) 70A, and a second paper feeding unit (back cover paper feeding unit) 70B.

The creasing roller 91 is connected to the second conveying path Y1.
A first fold a is formed on the front cover Ka to be conveyed and conveyed, and the front cover Ka is folded into a loose V-shape to form a front cover part b and a spine part c having the same size as the paper S.

The first paper feeding means 70A in the upper stage shown in FIG.
Paper feed cassette 71A for storing front cover Ka, paper feed unit 72
A. One cover sheet Ka fed from the sheet feeding cassette 71A by the sheet feeding section 72A is raised by being nipped by the conveying rollers 73 and 74, passes through the horizontal conveying means 20A of the first glue binding apparatus C1, and Horizontal transfer means 20B, direction change transfer means 3 of second glue binding apparatus C2
After passing through 0B, the first fold a is formed by the fold roller 91, and is fed into the paper storage unit 40B.

The lower second paper feeding means 70B shown in FIG.
Paper cassette 71B that accommodates back cover Kb, paper supply unit 72
B. One back cover Kb fed from the paper feed cassette 71B by the paper feed unit 72B is sandwiched between the transport rollers 73 and 74, rises, passes through the horizontal transport means 20A of the first glue binding apparatus C1, and The sheet is sent to the horizontal transfer means 20B of the second glue binding apparatus C2, is sent to the sheet storage section 40B via the direction changing transfer means 30B, and is stacked on the upper surface of the sheet bundle Sa for bookbinding.

FIG. 11 is a perspective view showing a case binding process of gluing the front cover Ka and the back cover Kb to the sheet bundle Sa, and FIGS. 12 to 18 are glue case binding by a glue binding apparatus. It is a perspective view which shows the detail of a manufacturing process. Hereinafter, the glue case binding production process will be described.

(1) The front cover Ka which is conveyed by the conveying roller 32 in the Y1A direction indicated by a white arrow on the second conveying path Y1.
Is a first fold a by a pair of fold rollers 91.
, And are bent into a loose V-shape to form a cover surface portion b and a spine portion c having the same size as the paper S (FIG. 1).
2, see FIG. 11 (1)).

(2) The transport rollers 31, 32 of the direction changing transport means 30B are rotated in the reverse direction, and the front cover Ka is transported backward in the Y1B direction of the white arrow on the upstream side of the second transport path Y1. While the front cover Ka is being conveyed in the Y1B direction, the second paste discharging means 80B discharges glue, and one line is formed near the first fold a on the surface of the spine portion c of the front cover Ka. A glue-applied portion Na is formed (see FIG. 13A).

Next, after moving the second glue discharging means 80B in the direction orthogonal to the Y1B direction, the conveying rollers 31 and 32 are moved.
Is switched to forward rotation, and the front cover Ka is transported in the Y1A direction. The glue discharged from the second glue discharging means 80B while the front cover Ka is being conveyed in the Y1A direction forms a second linear glue applying portion Nb on the front cover Ka adjacent to the glue applying portion Na. (See FIG. 13B).

Subsequently, the second glue discharging means 80B is set to Y1A
After moving in the direction perpendicular to the direction, the transport rollers 31,
32 is switched to reverse rotation, and the front cover Ka is transported in the Y1B direction. While transporting the front cover Ka in the Y1B direction, the second
The glue discharged from the glue discharging means 80B forms a third linear glue application portion Nc on the front cover Ka adjacent to the glue application portion Nb (see FIG. 13C).

In this manner, the spine portion c of the front cover Ka
Near the first fold a on the surface of
A wide glue application portion N5 composed of a, Nb, and Nc is formed (see FIG. 11B). The width of the glue application section N5 is set to be wider than the width of the spine of the sheet bundle Sa to be glued and bound.
It is set by the number of linear glue application sections (Na to Nc).

The cover Ka, which has been folded and has the wide glue application portion N5, is sandwiched by the transport rollers of the direction changing transport means 30B, is once transported downward in the direction of the third transport path Z, and then is switched back. The paper is transported upward and transported in the direction of the fourth transport path Y2, and is placed on the paper loading table 41 of the paper storage unit 40B with the spine portion c facing upward, and the width direction is regulated by the paper alignment pressing means 46. And the tip stopper 45
And stops (see FIG. 14).

The paper storage unit 4 of the first glue binding apparatus C1
0A indicates that the preceding sheet bundle Sa is the second glue binding apparatus C2.
Then, the paper S discharged from the image forming apparatus main body A can be continuously placed in the paper storage unit 40A.

(3) After the front cover Ka is conveyed onto the paper placing table 41 and placed at a predetermined position, the sheet bundle Sa glued and bound by the first glue binding apparatus C1 is converted into a second glue binding apparatus. The sheet is introduced into C2, is conveyed to the upper surface of the front cover Ka on the sheet storage section 40B, and is positioned and determined by the sheet alignment pressing means 46.

Next, the first folding means 93 supported at the retreat position below the paper placing table 41 is raised, and the cover Ka is lifted.
Is pressed, and the loosely bent backstrip c is bent substantially at right angles along the first fold a to form a wide backstrip c formed on the surface of the backstrip c of the front cover Ka. The glue application section N5 is adhered to the back of the sheet bundle Sa (FIG. 15).
(A), see FIG. 11 (3)).

(4) After bending the cover Ka at right angles,
The second folding means 94 is advanced in the horizontal direction by the driving means to form a second fold d on the front cover Ka, fold it at a right angle, and form a folded portion. (See FIG. 15 (b) and FIG. 11 (4)).

(5) The second folding means 94 is retracted and retracted to the initial position, the cover pressing member 92 is lowered, and the upper surface of the folded portion of the cover Ka is pressed, and the folded portion is moved to the final position of the sheet bundle Sa. Adhering to paper Sn (FIG. 16A, FIG. 1)
1 (5)).

(6) The cover pressing member 92 is driven up and retracts upward. On the other hand, the back cover Kb sent out by the second sheet feeding means 70B is used for the horizontal conveying means 20A, 20B.
After the conveyance in the X1 direction by B and the conveyance in the Y1 direction, the Z direction, and the Y2 direction by the direction changing / conveying means 30B, the sheet is fed onto the paper placing table 41 with the glue application section N on the lower side.

FIG. 19 is a partially enlarged sectional view of a sheet bundle Sa stacked on the sheet mounting table 41. The second and subsequent sheets S on which the glue application section N has been formed are stacked on the preceding paper S, and the sheets are adhered to each other. The back of the cover Ka and the back of each sheet S are formed of a wide glue application section. Bonded by N5.

The back cover Kb, on which the glue application section N is formed and fed onto the paper placing table 41, is width-aligned by pressing the side edges of the back cover Kb by the paper aligning and pressing means 46, so that the uppermost sheet bundle Sa is formed. The upper layer and the folded back portion of the front cover Ka are placed and adhered to the back of the front cover Ka (FIG. 16B,
FIG. 11 (6) and FIG. 15).

(7) The upper surface of the joining surface between the folded portion of the front cover Ka and the back cover Kb is pressed by the cover pressing member 92 to reinforce the adhesion (see FIGS. 17 and 11 (7)).

(8) The first folding means 93 is lowered and retracted to the initial position below. The booklet Sb that has been glued and bound is held on the trailing end of the booklet by the discharge claw 53a of the rotating discharge belt 53, and is discharged onto the elevating discharge tray 63.
The sheets are stacked (fifth transport path X2 in the direction indicated by the arrow). (FIG. 18,
FIG. 11 (8)).

FIG. 20A is a perspective view showing the finish of the case binding, and FIG. 20B is a perspective view showing the case binding with the back cover half opened.

The ascending and descending discharge tray 63 is a sheet S, which is sandwiched between the discharge rollers 61 and discharged from the upper discharge port 62 and is not subjected to the glue coating process, and a paste coat which is clamped between the discharge rollers 64 and discharged from the lower discharge port 65. A sheet bundle Sa subjected to cloth processing and a booklet Sb subjected to case binding can be stacked, and a large amount of sheets S, a sheet bundle Sa, and a booklet Sb can be accommodated by driving up and down.

The first glue binding apparatus C1 of the present invention
It is also possible to form a glue binding apparatus including the second glue binding apparatus C2 and an independent apparatus, and produce a glue binding for a sheet processed by another image forming apparatus.

[0081]

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

(1) The glue binding apparatus and glue binding method of the present invention are produced by a sheet bundle producing apparatus for producing a booklet by adhering the sheets discharged from the image forming apparatus main body to form a booklet. The case bookbinding apparatus is configured such that the front cover and the back cover are bonded to the bundled sheet to create a booklet, and the case bookbinding apparatus is configured to be connected as a separate body. Bonding the front cover, the back cover, and the sheet bundle to produce a booklet;
The process of storing a subsequent sheet discharged from the image forming apparatus main body by the sheet bundle manufacturing apparatus, and aligning, bonding, and pressurizing to form a booklet can be performed in parallel. By performing these two steps in parallel, a time margin is created in the case binding production step, and high-quality and reliable bookbinding can be produced.

(2) By using the image forming apparatus having the glue binding apparatus of the present invention, it is possible to reduce the productivity of the image forming apparatus main body without deteriorating the high-speed productivity of the sheet carried out of the image forming apparatus main body. The glue binding apparatus including the bundle producing apparatus and the case binding producing apparatus makes it possible to continuously produce high quality and reliable bookbinding.

[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, a first glue binding device, and a second glue binding device.

FIG. 2 is a front sectional view of a first glue binding apparatus.

FIG. 3 is a side sectional view of the first glue binding apparatus.

FIG. 4 is a plan view of a first glue binding apparatus.

FIG. 5 is a schematic perspective view illustrating a paper transport path and a glue application process during the glue application process.

FIG. 6 is a cross-sectional view of a first glue discharging unit and a second glue discharging unit.

FIG. 7 is a plan view showing various glue application sections formed near a measuring portion of the sheet.

FIG. 8 is a schematic perspective view illustrating a paper transport path and a glue applying process in a glue applying process in a first glue binding apparatus and a second glue binding apparatus.

FIG. 9 is a schematic perspective view showing a sheet transport path and a glue applying process of the second glue binding apparatus.

FIG. 10 is a front sectional view of a second glue binding apparatus.

FIG. 11 is a perspective view showing a step of gluing a front cover and a back cover to a sheet bundle and performing case binding;

FIG. 12 is a perspective view showing details of a glued case binding production process by the glue binding apparatus.

FIG. 13 is a perspective view showing details of a glued case binding production process by the glue binding apparatus.

FIG. 14 is a perspective view showing details of a glued case binding production process by the glue binding apparatus.

FIG. 15 is a perspective view showing details of a glued case binding production process by the glue binding apparatus.

FIG. 16 is a perspective view showing details of a glued case binding production process by the glue binding apparatus.

FIG. 17 is a perspective view showing details of a glued case binding production process by the glue binding apparatus.

FIG. 18 is a perspective view showing details of a glued case binding production process by the glue binding apparatus.

FIG. 19 is a partially enlarged cross-sectional view of a sheet bundle stacked on a sheet mounting table.

FIG. 20 is a perspective view showing the finish of case binding, and a perspective view showing case binding with the back cover half-opened.

[Explanation of symbols]

40A, 40B Paper storage unit 41 Paper mounting table 45 Lead stopper 46 Paper alignment pressing unit 47 Width alignment unit 70A First paper supply unit (front cover paper supply unit) 70B Second paper supply unit (back cover paper supply unit) 71A, 71B Paper feed cassette 80A First glue discharging means 80B Second glue discharging means 91 Folding roller 92 Cover pressing member 93 First bending means 94 Second bending means A Image forming apparatus main body C1 First glue binding apparatus (sheet bundle production) Device) C2 Second glue binding device (case binding production device) Ka Front cover Kb Back cover N, N1, N2, N3, N4, N5, Na, Nb, Nc
Glue application section S Transfer paper (paper) Sa Paper bundle Sb Booklet

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G03G 15/00 534 G03G 15/00 534 (72) Inventor Katsunori Takahashi 2970 Ishikawacho, Hachioji-shi, Tokyo Konica shares In-company (72) Inventor Takenobu Kimura 2970, Ishikawacho, Hachioji-shi, Tokyo Konica Corporation In-company (72) Inventor Toshitaka Matsumoto 3-51-4 Kanamecho, Toshima-ku, Tokyo F-term (reference) 2H072 CA01 CA02 CB01 FB01 GA09 JA02 JA03 3F102 AA09 AB01 AB04 BB02 BB04 DA05 EA14 3F108 GA09 GB01 HA02 HA12

Claims (9)

[Claims] A glue discharging unit forms a linear glue application section on the paper surface while the paper discharged from the image forming apparatus main body is being transported, and transports the glue-coated paper to a paper mounting table. Stacked, a sheet bundle producing device for forming a sheet bundle by pressing the glue application section between the sheets, and connected to the sheet bundle producing device, receiving the sheet bundle formed by the sheet bundle producing device, A glue binding apparatus, comprising: a case binding production apparatus for wrapping and bonding the side edge on the front surface side, the side edge on the back surface side, and the back of the bundle of sheets with a glue-coated cover sheet. apparatus. 2. The case binding production apparatus according to claim 1, wherein the cover binding includes a cover wrapping around a front side, a back portion, and a part of a back cover side of the sheet bundle, and a back cover having the same size as the sheet of the sheet bundle. 2. The glue binding apparatus according to claim 1, wherein a wrapping process is performed for attaching the sheet to a sheet bundle. 3. The case binding producing apparatus is formed by a glue discharging means for forming a glue application section on a front cover and a back cover, a conveying means for transporting a front cover and a back cover, and the paper bundle producing apparatus. Aligning means for receiving the sheet bundle and aligning the front and back covers; folding means for folding the front cover sheet which has been subjected to the glue application processing by the glue discharging means to cover the back of the sheet bundle; The glue binding apparatus according to claim 1, further comprising a pressing unit that bonds and presses the cover to the cover. 4. The glue discharging means of the case binding producing apparatus is configured to apply glue to a back surface portion of the front cover in contact with a side edge on a front surface side, a side edge on a back cover surface side, and a back portion of the sheet bundle. The glue binding apparatus according to any one of claims 1 to 3, wherein the glue binding apparatus forms a part. 5. The first sheet of the sheet bundle loaded on the sheet mounting table of the sheet bundle producing apparatus does not perform the glue coating process, and
2. The glue binding apparatus according to claim 1, wherein the second and subsequent sheets are stacked and bonded with the linear glue application section facing downward. 6. The glue according to claim 1, wherein the glue for bonding between the sheets of the bundle of sheets, the front cover, and the back cover is an aqueous emulsion glue. Bookbinding equipment. 7. The case bookbinding apparatus according to claim 1, wherein the glue is discharged from the glue discharging unit while the cover is moved in a paper transporting direction and the glue discharging unit is moved in a direction orthogonal to the paper transporting direction. The glue binding according to any one of claims 1 to 6, wherein a plurality of linear glue application portions are formed in a portion of the back surface portion of the cover sheet where the spine portion of the sheet bundle is bonded. apparatus. 8. A glue binding method for wrapping and gluing a front surface side, a back surface side, and a back portion of a sheet bundle with a front cover and a back cover to produce a booklet. After the paper is fed, a glue application unit is formed in a predetermined area of the front cover by the glue discharging unit, and is placed at a predetermined position on the paper mounting table by the transporting unit. The sheet is conveyed onto the cover, and first, the glue-coated portion of the cover is adhered to the front side of the sheet bundle, and then a first fold is formed on the cover to correspond to the back of the sheet bundle and the back. Bonding a glue-coated portion of the cover, and forming a second fold on the cover along the upper surface of the sheet bundle;
The upper surface side edge of the sheet bundle and the glue application portion of the front cover corresponding to the upper surface side edge are bonded to each other, and then the back cover fed by the back cover feeding device is linearly bonded by the glue discharging device. Is formed, and is conveyed, placed, and adhered to the upper surface of the cover folded back along the first fold by the convey means, and then glued on the cover, the sheet bundle, and the back cover. To produce a glue-bound book by applying pressure. 9. 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 7. Image forming device.