JPH107314A - Sheet bundle nipping and conveying device and bookbinding device provided with the sheet bundle nipping and conveying device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] Whether the amount of wrapping of the front cover tape and the amount of wrapping of the back cover tape are the same, or the amount of wrapping of the front cover tape is made constant, depending on the selection of the user.
Another object of the present invention is to provide a sheet bundle sandwiching and conveying device capable of switching whether the amount of folding of the back cover tape is constant, and a bookbinding device provided with the sheet bundle conveying device. SOLUTION: The value of the thickness of the sheet bundle Sb clamped by the sheet clamping units 16 and 17 detected by a sheet bundle thickness detecting unit 100 and the switching direction of the positioning member 69 in the sheet bundle thickness direction by a switching unit 111 are determined. The control means 110 controls the guide member driving means 101 based on the switching command, whereby the guide means 83 is positioned in the thickness direction of the sheet bundle, and the center Sb of the sheet bundle and the second position of the second processing station.
The center of position can be adjusted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet bundle nipping / conveying apparatus for conveying a sheet bundle among a plurality of processing apparatuses in an online sheet processing apparatus connected to an image forming apparatus and the like, and the sheet bundle nipping / conveying apparatus. More specifically, the present invention relates to a sheet bundle nipping / conveying device provided so as to be capable of switching the position in the thickness direction of a sheet bundle of a bind tape for binding a sheet bundle, and a bookbinding device including the sheet bundle nipping / conveying device. It is.

[0002]

2. Description of the Related Art A conventional sheet bundle nipping and conveying apparatus is disclosed in, for example, Japanese Unexamined Patent Publication (Kokai) No. 8-81117.
As disclosed in the above, the sheet bundle processed by the first processing station is clamped by the sheet clamping means including the movable-side clamping means and the fixed-side clamping means at the first position of the first processing station. Then, the conveyance driving unit moves the sheet holding unit to position the sheet bundle at a second position of the second processing station for processing the sheet bundle.

[0003] A positioning member movable in the same direction as the moving amount of the movable holding means in the thickness direction of the sheet bundle is approximately 1/2, and a guide for moving and moving the positioning member in the thickness direction of the sheet bundle. Means, the center of the sheet bundle binds the sheet bundle at the second processing station when the sheet nipping means holding the sheet bundle is positioned at the second position of the second processing station. Since the center of the bind tape coincides with the center of the bind tape, the width of the bind tape attached to the front cover (backside) side and the back cover (backside) side of the bundle of sheets to be bound is always the same. .

[0004]

However, in the above prior art, the center of the sheet bundle and the center of the tape position are in the same positional relationship. Therefore, when the thickness of the sheet bundle changes, the tape on the front cover side or the back cover side changes. The amount of wrap around changes.

If the front cover position of the sheet bundle is adjusted to a predetermined position on the tape, the wraparound amount of the tape on the front cover side becomes constant, but the wraparound amount of the tape on the front cover side and the back cover side becomes small. Will not match.

That is, some users prefer that the amount of wrapping of the tape is always the same on the front and the back, and some users have made the amount of wrapping of the cover tape always constant even if the sheet bundle thickness changes. I prefer something but I can't make it compatible, so I couldn't choose it and had to set only one of them.

Therefore, an object of the present invention is to make the amount of wrapping of the front cover tape and the amount of wrapping of the back cover tape the same or to make the amount of wrapping of the front cover tape constant, depending on the selection of the user. Another object of the present invention is to provide a sheet bundle sandwiching and conveying device capable of switching whether the amount of folding of the tape on the back cover is constant, and a bookbinding device provided with the sheet bundle conveying device.

[0008]

In order to achieve the above object, a first aspect of the present invention provides a movable side holding unit and a fixed side holding unit for holding a sheet bundle processed in a first processing station at a first position. Sheet holding means constituted by:
Transport driving means for positioning the sheet bundle at a second position of the second processing station for processing the sheet bundle by moving the sheet clamping means, and synchronizing with movement of the sheet clamping means in the sheet bundle thickness direction. And a guide member that moves the positioning member in the thickness direction of the sheet bundle and guides the positioning member in the thickness direction of the sheet bundle. Sheet bundle thickness detecting means for detecting the thickness of the processed sheet bundle, guide member driving means for moving the guide means in the sheet bundle thickness direction, and sheet bundle thickness of the positioning member by the guide member driving means A sheet bundle thickness detected by the sheet bundle thickness detecting means, and a switching signal from the switching means. Further comprising control means for controlling the id member driving means, and in the sheet Tabakyo lifting transfer apparatus according to claim.

According to a second aspect of the present invention, there is provided a bookbinding apparatus comprising: the sheet bundle nipping and conveying device; and a processing sheet bundle conveying means for conveying a sheet bundle bound by the sheet bundle nipping and conveying device. The first processing station is a sheet bundle storage and alignment device, and the second processing station is a tape heating device for heating and bonding a bind tape.

Further, according to a third aspect of the present invention, when the switching member raises the positioning member, the center of the sheet bundle is positioned above the center of the bind tape, and the switching member lowers the positioning member. The center of the sheet bundle is positioned lower than the center of the bind tape.

In a fourth aspect, the present invention provides a sheet holding means comprising a movable holding means and a fixed holding means for holding a sheet bundle processed in a first processing station at a first position; Transport driving means for positioning the sheet bundle at a second position of the second processing station for processing the sheet bundle by moving the means; and approximately 1/1 / the amount of movement of the movable-side holding means in the sheet bundle thickness direction.
(2) In the sheet bundle nipping and transporting device, comprising: a positioning member movable in the same direction; and guide means for moving the positioning member in a sheet bundle thickness direction to guide the sheet.
Sheet bundle thickness detecting means for detecting the thickness of the sheet bundle processed in the processing station, guide member driving means for moving the guide means in the sheet bundle thickness direction, and whether or not to activate the guide member driving means And a control means for controlling the guide member driving means, wherein the sheet bundle thickness detecting means detects when the switching operation of the guide member driving means is performed by the switching means. The control means controls the guide member driving means based on the thickness of the bundle, and the sheet bundle nipping and conveying device is provided.

According to a fifth aspect of the present invention, the positioning member moves by の of the moving amount in accordance with the moving amount of the movable-side holding means, and the reference position of the guide means is set at the center of the sheet bundle center. When the centers of the two processing stations are matched, and when the bundle thickness detected by the sheet bundle thickness detecting means is Ts, the control amount of the guide means is X1 =
a-Ts / 2 (a is a constant).

In a sixth aspect of the present invention, the positioning member is moved by the moving amount in accordance with the moving amount of the movable side holding means constituting the sheet holding means, and the reference position of the guide means is a sheet bundle. When the upper surface position of the second processing station coincides with the predetermined position of the second processing station, assuming that the bundle thickness Ts is detected by the sheet bundle thickness detecting means, the control amount of the guide means is X2 = b-1 / 2Ts (b is a constant. ).

According to a seventh aspect of the present invention, the positioning member is moved by the moving amount in accordance with the moving amount of the fixed side holding means, and the arrangement position of the guide means is different from the lower surface position of the sheet bundle and the second processing. When the predetermined positions of the stations are matched, assuming the bundle thickness Ts detected by the sheet bundle thickness detecting means, the control amount of the guide means is X3 = c-1 / 2.
Ts (c is a constant).

An eighth invention is a bookbinding apparatus, comprising: the sheet bundle nipping and conveying device; and a processing sheet bundle conveying means that conveys a sheet bundle bound by the sheet bundle nipping and conveying device. The bookbinding apparatus is characterized in that one processing station is a sheet bundle storage / alignment device, and the second processing station is a tape heating device for heating and bonding a bind tape.

[Operation] As described above, based on the configuration of the first invention, the sheet bundle processed in the first processing station is provided at the first position with the movable side holding means and the fixed side holding means constituting the sheet holding means. It is pinched by. Then, the transport drive unit positions the sheet bundle at the second position of the second processing station that processes the sheet bundle with the sheet holding unit. At this time, a positioning member movable in the sheet bundle thickness direction in synchronization with the movement of the sheet clamping unit in the sheet bundle thickness direction is guided by the guide unit, and the sheet clamping unit is moved in the sheet bundle thickness direction. Moving. The control unit controls the guide member based on a value detected by the sheet bundle thickness detecting unit for the thickness of the sheet bundle held by the sheet nipping unit, and a switching command of the positioning member in the sheet bundle thickness direction by the switching unit. By controlling the driving means, the guide member is positioned in the thickness direction of the sheet bundle, and the center of the sheet bundle and the center of the second position of the second processing station can be adjusted.

Further, based on the configuration of the second invention, the sheet bundle holding / conveying device transfers the sheet bundle aligned in the sheet bundle storing / aligning device which is the first processing station.
The sheet bundle is nipped and conveyed to a tape heating device, which is a second processing station, and the bind tape is heated and adhered. The processed sheet bundle conveyer conveys the bound sheet bundle.

Further, based on the configuration of the third invention, when the positioning member is raised by the switching means, the center of the sheet bundle is positioned above the center of the bind tape, and the positioning means performs the positioning by the switching means. When the member descends, the center of the sheet bundle is positioned lower than the center of the bind tape, so that the wrap width of the tape on the front cover or the wrap width of the tape on the back cover is always constant. Can be.

Then, based on the configuration of the fourth invention, the first
The sheet bundle processed by the processing station is held at the first position by the movable-side holding unit and the fixed-side holding unit that constitute the sheet holding unit. Then, the transport drive unit positions the sheet bundle at the second position of the second processing station that processes the sheet bundle with the sheet holding unit. At this time, the positioning member moves in substantially the same direction as the moving amount of the movable side holding means in the thickness direction of the sheet bundle, and the positioning member is guided by the guide means. Move in bundle thickness direction. The control unit controls the guide member based on a value detected by the sheet bundle thickness detecting unit for the thickness of the sheet bundle held by the sheet nipping unit, and a switching command of the positioning member in the sheet bundle thickness direction by the switching unit. By controlling the driving means, the guide means is positioned in the thickness direction of the sheet bundle, and the center of the sheet bundle and the center of the second position of the second processing station can be adjusted.

Further, based on the configuration of the fifth invention, assuming that the sheet bundle thickness detected by the sheet bundle thickness detecting means is Ts, the control amount X1 of the guide means is a-Ts / 2 (a
Is a constant), the positioning member moves by の of the moving amount according to the moving amount of the movable side holding means, and the reference position of the guide means is set to the sheet bundle center and the second processing station. Centers match.

Further, based on the configuration of the sixth aspect, assuming that the bundle thickness Ts is detected by the sheet bundle thickness detecting means, the control amount X2 of the guide means is b-1 / 2Ts (b is a constant).
Therefore, the positioning member moves by the amount of movement according to the amount of movement of the movable side holding means constituting the sheet holding means, and the reference position of the guide means is set to the upper surface position of the sheet bundle and the second processing. The predetermined position of the station matches.

Further, based on the configuration of the seventh invention, assuming that the bundle thickness Ts is detected by the sheet bundle thickness detecting means, the control amount X3 of the guide means is c-1 / 2Ts (c is a constant).
Therefore, the positioning member moves by the amount of movement in accordance with the amount of movement of the fixed side holding means, and the arrangement position of the guide means matches the lower surface position of the sheet bundle with the predetermined position of the second processing station. I do.

Then, based on the configuration of the eighth invention, the first
The sheet bundle holding and aligning device which is a processing station is a sheet bundle holding and aligning device, and the sheet bundle holding and conveying device sandwiches and conveys the sheet bundle to a tape heating device which is a second processing station to heat and bond the bind tape. The bound sheet bundle is transported by the processing sheet bundle transport unit.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION

<First Embodiment> The present invention will be described below using a bookbinding apparatus to which the present invention is applied.

The bookbinding apparatus 1 includes a sheet conveying apparatus 201 and a first
A sheet storage / alignment device 202 serving as a processing station;
A sheet bundle nipping / transporting device 203 which is a sheet bundle nipping / transporting device of the present invention, a tape heating device 204 which is a second sheet processing station, a tape transporting device 205, a bookbinding bundle transporting device 206 which is a processing sheet bundle transporting means, a storage stacker 207 (FIG. 1).

The sheet conveying device 201 has a conveying path 2 for the sheet material S to be conveyed, and has a carry-in port 2a and a discharge port 2a.
b are formed, and a carry-in roller pair 3, a plurality of carry roller pairs 4, and a carry-out roller pair 5 are provided from the upstream side along the sheet conveying path 2. A flapper 6 as a branching means is disposed near the downstream of the carry-in roller pair 3, and the sheet transport path 2 is connected to the sheet transport path 7 when bookbinding.
It is designed to branch to. The sheet S branched to the sheet conveyance path 7 by the flapper 6 is carried into the sheet storage / alignment device 202 by the sheet conveyance roller pair 8.

The sheet storing and aligning device 202 includes a storing tray 9 for storing sheets, an aligning fence 10 for aligning sides parallel to the sheet conveying direction, an aligning paddle 11 for aligning leading edges in the sheet conveying direction, and a bookbinding area. A stop finger 12 for temporarily holding the sheet, a leading edge reference shutter 13 against which the leading end of the sheet abuts, a lower entrance guide 14 for guiding the lower surface of the sheet at the apparatus entrance, and an upper entrance guide 15 for guiding the upper surface of the sheet at the apparatus entrance. (FIG. 2).

The upper surface of the sheet S carried into the sheet storage / alignment device 202 is guided by the upper entrance guide 15 (15a, 15a).
b, 15c), while the lower surface is guided by the lower entrance guide 14, the leading edge reference shutter 13 (13a,
13b). At this time, the alignment in the transport direction of the sheet is performed by the alignment paddle 11, and the alignment parallel to the transport direction of the sheet is performed by the alignment fence 10 on the storage tray 9. The alignment fence 10 includes a fixed fence 10a and a moving fence 10b, and the sheets are aligned with the fixed fence 10a as a reference. When bookbinding is performed continuously, the stop fingers 12 (12a, 12b) are operated to temporarily hold sheets between the volumes, and after the aligned sheet bundle is carried out from the storage tray 9, the stop fingers 12 (12a, 1b).
2b) is released and the sheet that has been on standby is stored in the storage tray 9.
To be passed on.

The sheet bundle holding / conveying device 203 includes a movable grip plate 17 (17a, 17b) which is a movable side holding means of the sheet holding means, and a fixed grip plate 16 (16a, 16) which is a fixed side holding means of the sheet holding means.
b), a gripping drive mechanism described in detail after the movable grip plate 17, a moving mechanism described in detail after the movable grip plate 17 and the fixed grip plate 16, a sheet bundle guide 18, and the like (FIG. 2).

When the sheet alignment by the sheet aligning device 202 is completed, the nipping drive mechanism of the movable grip plate 17 is operated, and the movable grip plate 17 moves to sandwich the aligned sheet bundle together with the fixed grip plate 16 (FIG. 3).
(A)). When the nipping of the sheet bundle is completed, the moving mechanism of the movable grip plate 17 and the fixed grip plate 16 operates to convey the aligned sheet bundle from the sheet aligning device 202 to the tape heating device 204 in a state where the sheet bundle is nipped (FIG. 3 (b)). At this time, the lower side of the rear end of the sheet bundle is the sheet bundle guide 18 (18a, 18b, 18).
Guide support by c). The sheet bundle guide 18 moves together with the movable grip plate 17 and the fixed grip plate 16.

The tape heating device 204 includes a tape guide 1
9, 20, center heater 21, side heater 2
2, 23, a drive mechanism 24 for the center heater 21, a drive mechanism 25 for the side heaters 22, 23, and the like (FIG. 1). The bind tape 26 is supplied to the tape guides 19 and 20 by the tape transport device 205 before the aligned sheet bundle is transported to the tape heating device 204 by the sheet bundle sandwiching and transporting device 203.

The tape transport device 205 includes a tape reel R
₁ and R ₂ , a carriage conveyance body C (FIGS. 5 and 6), a tape cutter 42, a tape conveyance means 43 (44), and the like (FIG. 1). The tape wound on the tape reels R ₁ and R ₂ is cut into a predetermined length by the tape cutter 42 to become the bind tape 26, and is conveyed into the carriage conveyance body C by the tape conveyance means 43 (FIG. 5). . The bind tape 26 is moved to the tape transport means 43.
Once transported to the carriage moving body C by the carriage carrier C moves from the tape receiving position C ₁ to the tape delivery position C ₂ (FIG. 6). When moving from the tape receiving position C ₁ of the carriage carrier C into tape transfer position C ₂ is completed, the bind tape 26 is supplied to the tape guides 19 and 20 parts by tape transfer means 44 (FIG. 7).

After the supply of the bind tape 26, the center heater 21 is moved from the retracted position (not shown) to the heating position (FIG. 1) by the drive mechanism 24 of the center heater 21, and the preheating of the bind tape 26 is started. When the aligned sheet bundle is conveyed to the rear contact position H by the sheet bundle conveying device 203 (FIG. 3C), the rear surface of the sheet bundle is bound. When the binding on the back side of the sheet bundle is completed, the side heaters 22 and 23 are moved by the drive mechanism 25 while retracting the tape guides 19 and 20 (not shown) and lifting the ends of the bind tape 26, and then the sheet bundle is moved. The binding of the side surface is started by sandwiching Sb between the side heaters 22 and 23. When the side binding of the sheet bundle is completed, the pressurization by the side heaters 22 and 23 is released.

When the pressurization by the side heaters 22 and 23 is released, the completed bookbinding product Sc is transferred from the back contact position H to the delivery position to the booklet transfer device 206 by the sheet bundle transfer device 203. (FIG. 4D). The center heater 21 and the side heaters 22 and 23 return to the retreat position because the next bind tape is supplied to the tape guide unit by the drive mechanism 24 of the center heater 21 and the drive mechanism 25 of the side heaters 22 and 23, respectively.

The booklet bundle conveying device 206 includes a bookbinding completed product receiving tray 27, a bookbinding completed product conveying tray 28, driving means 29 and 30 for the bookbinding completed product receiving tray 27, and a driving means 31 for the bookbinding completed product conveying tray 28. 32, lifting means 33, 3
4 and the like (FIG. 1).

The bookbinding finished product Sc is moved from the back contact position H by the sheet bundle holding / conveying device 203 to the bookbinding conveying device 20.
6, the receiving tray 27 is moved by the driving means 29, 30 to the bound bookbinding product receiving position. When the movement of the receiving tray 27 to the bookbinding completed product receiving position is completed, the holding of the movable grip plate 17 and the fixed grip plate 18 of the sheet bundle nipping / transporting device 203 is released, and the completed binding product Sc is transferred to the receiving tray 27. Is passed. And holding the sheet bundle
The conveying device 203 returns to the aligned sheet nipping position of the sheet aligning device 202 (FIG. 4E). When the receiving tray 27 receives the bookbinding finished product Sc (FIG. 4F),
The drive unit 29, 30 moves to the transfer position T to the bookbinding finished product transfer tray 28.

Upon receiving the bookbinding finished product Sc at the delivery position T, the bookbinding finished product transport tray 28 drives the driving units 31 and 3.
2 to move onto the storage stacker 35 (FIG. 8).
(A)), bookbinding finished product Sc by lifting means 33, 34
Moves down inside the storage stacker 35 (FIG. 8B). Then, by moving the storage stacker 35 in the direction away from the storage stacker 35 and the bookbinding product transport tray 28, the bookbinding completed product Sc is stored in the storage stacker 35.
(FIG. 8C).

Next, a configuration for holding and conveying a sheet bundle according to the present invention will be described.

FIGS. 9, 10 and 11 show sheet storage and storage.
FIG. 4 is a diagram illustrating a sheet holding / conveying device 203 located at a sheet holding position of an aligning device 202. FIG. 9 is a front sectional view,
FIG. 10 is a side view seen from the tape heating device 204 side, and FIG.
1 shows a top view. 9 to 11,
Reference numeral 50 (50a, 50b) denotes a DC servo motor of a sheet bundle holding motor, which is a holding driving means, and 51 (51a, 5b).
1b) is a mounting _{plate, 52 (52a 1, 52a 2} , 5
2b ₁ and 52b ₂ ) are linear guides and 53 (53a, 5b)
3b) is a motor mounting plate, 54 (54a, 54b) is a gear mounting plate, 55 (55a, 55b) is a reduction gear unit, 56 (56a, 56b) is a relay gear, 56as is a relay gear shaft, and 57 (57a, 57b). ) Is a relay gear, 57a
s is a relay gear shaft (FIG. 9), 58 (58a, 58b) is a drive rack as a moving means, 59 (59a, 59b) is a linear guide, 60 (60a, 60b) is a sensor flag, 6
1 (6la, 6lb) is a sensor mounting plate, 62 (62
a, 62b) are height detection sensors, 63 (63a, 63).
b) is a relay gear (FIG. 10), 64 (64
a, 64b) are relay gears as moving means, and 65 (65)
a, 65b) are the second racks 66 (66
a, 66b) are positioning shaft support plates, 67 (67a, 67b).
b) is a linear guide, 68 (68a, 68b) is a positioning first shaft, 69 (69a, 69b) is a positioning first roller, 70 (70a, 70b) is a positioning second roller, 71 (7la, 7lb) is a holding position detection sensor flag, 72 (72a, 72b) is a holding position detection sensor, 73 (73a, 73b) is a holding position detection sensor mounting plate, and 74 (74a, 74b) is a sheet storage / alignment device 202 and a sheet. A support side plate that directly or indirectly supports the bundle holding / conveying device 203 and the tape heating device 204, and 75 (75a, 75b) are slide rails, 76
(76a, 76b) is a sheet bundle transport motor as transport drive means, 77 (77a, 77b) is a sheet bundle transport drive belt, 78 (78a, 78b) is a belt fixing plate, 79
Is a connecting stay, 80 (80a, 80b) is a protective rubber sheet, 81 (8la, 8lb) is a protective rubber sheet, 82
(82a, 82b) are alignment portion height regulating members.

Next, a description will be given of a sheet bundle sandwiching operation based on the above configuration.

When a predetermined number of aligned sheet bundles are completed on the storage tray 9, the DC servo motors 50 (50a, 50b) of the sheet bundle sandwiching motor operate to reduce the speed of the motor mounted on the motor mounting plate 53 (53a, 53b). The relay gear 56 (56) rotatably supported by the output shaft 55as of the gear unit 55 (55a, 55b) and the relay gear shaft 56as attached to the gear mounting plate 54 (54a, 54b).
a, 56b) and the gear mounting plate 54 (54a, 54b) via the relay gear 57 (57a, 57b) rotatably supported by the relay gear shaft 57as mounted on the gear mounting plate 54 (54a, 54b). Drive rack 5 attached to the attached linear guide 59 (59a, 59b)
Drive is transmitted to the rack portions 58a ₁ , 58b ₁ of the movable rack plates 58 (58a, 58b) and the movable grip plate 17 (17a, 1) attached to the drive rack 58 (58a, 58b).
7b) moves and the motor mounting plate 53 (53a, 53
b) fixed grip plate 16 (16
a, 16b) is pressed against the protective rubber 80 (8
0a, 80b) and 81 (8la, 8lb) to sandwich the sheet bundle. The home position of the movable grip plate 17 (17a, 17b) is attached to the sensor flag 60 (60a, 60b) attached to the movable grip plate 17 (17a, 17b) and the sensor mounting plate 61 (6la, 61b). Positioning is performed by the height detection sensor 62 (62a, 62b).

Further, the drive rack 58 (58a, 58b)
Rack portion 58a ₂ of the rack portion 58a ₁ of a drive to 58b ₁ is transmitted to the drive rack 58 (58a, 58b),
58b ₂ to the relay gears 63 (63a, 63b), 64
(64a, 64b) via the second rack 65 (65a, 64b).
The drive is transmitted to 65b). The second rack 65 (65
a, 65b) is attached to the linear guide 67 (67a, 67b) attached to the gear attachment plate 54 (54a, 54b), and the second rack 65 (65a, 65b) is attached to the linear guide 67 (67a, 67b).
A positioning shaft support plate 66 (66a, 66b) is attached to b). At this time, the drive rack 58 (58a, 5
8b) is transmitted from the racks 58a ₂ and 58b ₂ to the relay gears 63 (63a and 63b) and 64 (64a and 64a).
64b), the positioning shaft support plate 6
6 (66a, 66b) supported by the first positioning shaft 68
The first positioning roller 69 (69a, 69b) attached to the (68a, 68b) is
(17a, 17b) It is configured to move by の of the movement.

Next, a description will be given of the sheet bundle conveying drive based on the above-described configuration.

The movable grip plate 17 (17a, 17)
b) and the fixed grip plate 16 (16a, 16b), when the nipping of the sheet bundle is completed, the pulse motor 76 (76a, 76b) of the sheet bundle transport motor operates, and the sheet bundle transport drive belt 77 (77a, 77b). The drive is transmitted to. The sheet bundle transport drive belt 77 (77
a, 77b) is attached to the attachment plate 51 (5la, 5lb) via a connecting stay 79 by a belt fixing plate 78 (78a, 78b). This mounting plate 5
1 (5la, 5lb) has a linear guide 52 (52a
₁ , 52a ₂ , 52b ₁ , 52b ₂ ), the motor mounting plate 53 (53a, 53b) described above is attached, and the positioning second roller 70 (70a, 70b) is mounted. (82a, 82b), the position of the sheet holding / conveying device 203 (203a, 203b) in the sheet storage / alignment device 202 is adjusted to the sheet loading surface of the storage tray 9 and the fixed grip plate 16 (16).
(a, 16b) is regulated so that the sheet holding surface height substantially matches.

The mounting plate 51 (5la, 5)
lb) itself is a slide rail 75 (75a, 75b)
Is attached to a slide member (not shown). On the other hand, the slide rails 75 (75a, 75b) are attached to the support side plates 74 (74a, 74b) that directly or indirectly support the sheet storage / alignment device 202, the sheet bundle holding / transporting device 203, and the tape heating device 204. When a pulse motor 76 (76a, 76b), which is a conveyance driving means for conveying a sheet bundle, is operated, the sheet storage
It can move between the aligning device 202 and the tape heating device 204.

The sheet bundle holding / conveying device 203 (2
03a, 203b) are the mounting plates 51 (5la, 5lb) in the sheet storage / alignment device 202 (FIG. 3A).
Position detection sensor flag 71 (7 l
a, 7 lb), a sheet storage / alignment device 202, a sheet bundle holding / conveying device 203, and a tape supporting device 204 that directly or indirectly support the tape heating device 204.
4b) Nipping position detection sensor mounting plate 73 mounted in 4)
(73a, 73b) is a position detecting means Toritsui the clamping position detecting sensor 72 (72a, 72b) are substantially positioned at the first position P ₁ by.

Similarly, the tape heating position of the tape heating device 204 (FIG. 3 (c)) and the binding bundle transfer position (FIG. 4)
(D)) also in the mounting plate 51 (51a, 51a).
b) The pinch position detection sensor flag 71 (7
1a, 71b), a sheet storage / alignment device 202, a sheet bundle holding / conveying device 203, and a support side plate 74 (74a, 74b) directly or indirectly supporting the tape heating device 204.
By another clamping position detection sensor Toritsui to another clamping position detecting sensor mounting plate attached with an appropriate position of 74b) to the second position P ₂ is substantially positioned.

The sheet bundle holding / conveying devices 203a and 203a
One of the sheet bundle clamping / conveying devices 203a and 203b is connected by a connecting stay 79 so as to be movable by a predetermined amount in the sheet bundle conveying direction (front and rear), and the sheet bundle is fed by a pulse motor 76 (76a, 76b). A predetermined amount of the holding / transporting devices 203a and 203b can be independently controlled.

Next, with reference to FIG. 1 and FIGS. 9 to 12, the operation of the sheet bundle nipping and conveying apparatus of the present invention and the bookbinding apparatus having the same will be described.

Sheet S carried into bookbinding apparatus of the present invention
Passes through the entrance 2a of the sheet transport path 2 and is branched into the sheet transport path 7 by the flapper 6, and is loaded into the sheet storage / alignment device. The sheet S conveyed into the sheet storage / alignment device 202 is guided by the leading edge reference shutter 13 (13a, 13b) while the upper surface is guided by the upper entrance guide 15 (15a, 15b, 15c) and the lower surface is guided by the lower entrance guide 14. ). At this time, the sheet S is placed on the upper surface of the storage tray 9 with the fixed fence 10a and the movable fence 10b.
Thus, the sheet is aligned based on the fixed fence 10a side, and the alignment is performed in the sheet conveying direction by the alignment paddle 11, thereby forming an aligned sheet bundle Sb.

When the sheet alignment by the sheet aligning device 202 is completed, the DC servo motor 50 (50a, 50b) of the sheet bundle holding motor operates to operate the reduction gear unit mounted on the motor mounting plate 53 (53a, 53b). A relay gear 56 (56) rotatably supported by a relay gear shaft 56as attached to an output shaft 55as of a 55 (55a, 55b) and a gear mounting plate 54 (54a, 54b).
a, 56b) and the gear mounting plate 54 (54a, 54b) via the relay gear 57 (57a, 57b) rotatably supported by the relay gear shaft 57as mounted on the gear mounting plate 54 (54a, 54b). Drive rack 5 attached to the attached linear guide 59 (59a, 59b)
Drive is transmitted to the rack portions 58a ₁ , 58b ₁ of the movable rack plates 58 (58a, 58b) and the movable grip plate 17 (17a, 1) attached to the drive rack 58 (58a, 58b).
7b) moves and the motor mounting plate 53 (53a, 53
b) fixed grip plate 16 (16
a, 16b) is pressed against the protective rubber 80 (8
0a, 80b) and 81 (8la, 8lb) to hold the alignment sheet bundle Sb.

Here, FIGS. 12A and 12A
A first position in which alignment sheet Tabakyo lifting position P ₁ in the positioning the first roller 69 (69a, 69b) and positioning the second roller 70 (70a, 70b) and movable gripping plates 1
7 (17a, 17b) and the fixed grip plate 16 (1
6a, 16b) and the amount of movement in the sheet bundle thickness direction.

[0053] The In-aligned sheet Tabakyo lifting position P _1, positioning the second roller 70 (70a, 70b) is regulated by the height matching section height regulating member 82 (82a, 82b) the first guide portion 82 of the "and , Pinching position detection sensor flag 71 (7 l
a, 7lb) and the holding position detection sensor mounting plate 73 (7
3a, 73b) Nipping position detection sensor 72 attached to
(72a, 72b), in addition to the approximate positioning, the butting portion 8 of the alignment portion height regulating member 82 (82a, 82b).
The movable grip plate 17 (17
a, 17b) and the fixed grip plate 16 (16a,
16b) and the tip reference shutter 13 (13a, 13b)
The position of the sheet bundle nipping / conveying device 203 (203a, 203b) is adjusted so that the positional relationship with the sheet bundle does not change.

The movable grip plate 17 (17a, 17)
When the b) pinches the sheet bundle and moves by Tf (FIG. 12A), as described above, the positioning first roller 69 (69)
a, 69b) move by Tf / 2. At this time,
Upper surface of the fixed grip plate 16 (16a, 16b) from the lower reference position G of the receiving tray 9 is located at the first height of the height T _1.

When the nipping of the alignment sheet bundle Sb by the movable grip plate 17 and the fixed grip plate 16 is completed, the pulse motors 76 (76a, 76b) of the sheet bundle transport motor operate, and the sheet bundle transport drive belt 77 (77a). , 77b), the sheet bundle clamping / conveying device 203 is operated by a tape heating device 204.
Move to. Also at the tape heating position (second position P ₂ ) of the tape heating device 204 (FIGS. 9 and 12), the holding position detection sensor flags 71 (71a, 71b) attached to the attachment plates 51 (51a, 51b) The positioning is substantially performed by another holding position detection sensor attached to another holding position detection sensor mounting plate attached to an appropriate position of the support side plate 74 (74a, 74b).

In FIG. 12, reference numeral 83 denotes a tape heating portion height regulating member which is a guide means, and the support body side plate 7 is provided similarly to the matching portion height regulating member 82 (82a, 82b).
4 (74a, 74b). FIG.
(B) and 12 (b), the second position P positioned at _second tape heating position P ₂ is a first roller 69 (69a, 69
b), the position of the positioning second roller 70 (70a, 70b), the position of the movable grip plate 17 (17a, 17b) and the fixed grip plate 16 (16a, 16b) and the amount of movement in the sheet bundle thickness direction. Tape heating position P ₂
Then, the first positioning roller 69 (69a, 69b) is lifted in the height direction while being guided by the second guide portion 83 '''of the tape heating portion height regulating member 83 (83a, 83b), and is lifted in the height direction. The height is regulated by "", and is lifted by Ta (head).
(71a, 71b) and the tape heating unit height regulating member 8 in addition to the approximate positioning by the another clamping position detection sensor attached to the another clamping position detection sensor mounting plate.
3 (83a, 83b), the positional relationship between the movable grip plate 17 (17a, 17b) and the fixed grip plate 16 (16a, 16b) and the center heater 21 (the sheet bundle and the center heater 21). The position of the sheet bundle sandwiching / conveying device 203 (203a, 203b) is determined so that the positional relationship does not change.

At this time, the movable grip plate 17 (17
a, 17b) and the fixed grip plate 16 (16a, 1).
The sheet bundle sandwiched by the 6b) is guided by the linear guide _{52 (52a 1, 52a 2,} 52b 1, 52b 2), the movable grip plate 17 (17
a, 17b) and the fixed grip plate 16 (16a,
16b) and the drive units related thereto are lifted by Ta so that the center of the sandwiched sheet bundle Sb coincides with the center of the center heater 21. At this time, the fixed grip plate 16 (16
The holding surface on the a, 16b) side is located at the second height Tc from the lower reference position G.

After the supply of the bind tape 26, the center heater 21 is moved from the retracted position (not shown) to the heating position (FIG. 1) by the drive mechanism 24 of the center heater 21 to start preheating the bind tape 26. When the aligned sheet bundle is conveyed to the rear contact position H by the sheet bundle conveying device 203 (FIG. 3C), the rear surface of the sheet bundle is bound. When the binding on the back side of the sheet bundle is completed, the side heaters 22 and 23 are moved by the drive mechanism 25 while retracting the tape guides 19 and 20 (not shown) and lifting the ends of the bind tape 26, and then the sheet bundle is moved. The binding of the side surface is started by sandwiching Sb between the side heaters 22 and 23. When the side binding of the sheet bundle is completed, the pressurization by the side heaters 22 and 23 is released. And the side heaters 22 and 2
When the pressurization in Step 3 is released, the completed bookbinding product Sc is transferred from the back contact position H to the transfer position to the booklet bundle transfer device 206 by the sheet bundle transfer device 203 (FIG. 4).
(D)).

The finished book bundle Sc received by the bookbinding completed product receiving tray 27 (FIG. 1) of the booklet bundle transport device 206.
Is moved to the transfer position T to the bookbinding finished product transport tray 28 by the driving means 29, 30. When the completed bookbinding bundle Sc is received at the delivery position T by the bookbinding completed product transport tray 28, it is moved onto the storage stacker 35 by the driving units 31 and 32 (FIG. 8A).
The bookbinding completed product Sc is lowered in the storage stacker 35 by the lifting / lowering means 33, 34 (FIG. 8B). At this time, the fixed side grip plate 16 is
The first roller 69 positioned by the second guide portion 84 '''
(69a, 69b) is then lowered while being guided, the first position P ₁ matching portion in the vicinity of the height regulating member 82 the second guide portion 82 '' positioned 'second rollers 70 (70a, 70
b) it is restored while being guided by the first position P _1. The bookbinding completed product Sc is stored in the storage stacker 35 by moving the storage stacker 35 in the direction away from the storage stacker 35 and the bookbinding completed product transport tray 28 (FIG. 8C), and the bookbinding is completed. .

Here, the case where the number of bundles changes will be described.

As shown in FIG. 13, when a certain number of sheet bundles are clamped in the sheet storage / alignment device 202, the movable grip plates 17 (17a, 17b)
Move by f '. That is, the movable grip plate 17
With respect to the position Tf of (17a, 17b), Tf′−Tf
Is located only low (high). At this time, the first positioning rollers 69 (69a, 69b) are (Tf'-Tf) / 2.
Only go down (up). When the bundle is nipped and transported by the tape heating unit, the positioning first roller 69 (69a, 69b) is raised to the position of the first guide part 83 ″, so that the sheet bundle nipping drive unit is raised upward by Ta ′ (Ta). Therefore, the center of the sandwiched sheet bundle is located at the height of Tc from the lower reference position, and the folded amount of the tape is always equal between the front and back sides even if the number of bundles changes.

However, some users prefer that the amount of fold of the tape is always the same on the front and back, but many users prefer that the amount of wrap of the tape on the front cover is always constant. Therefore, the user selects on the operation unit whether the return amount of the front cover tape is to be constant or not, and performs a switching operation by the switching unit 111, so that the thickness of the sheet bundle is The control section 100 calculates the position of the first guide portion 83 ″ of the tape heating portion height regulating member 83 (83a, 83b) in the bundle thickness direction based on the output result, and guides the tape based on the value. The pulse motor 101, which is a member driving unit, is controlled, that is, a predetermined number of sheets are stored on the storage tray 9 as shown in FIG.
When (17a, 17b) falls and pinches the sheet bundle,
The sheet bundle thickness Ts is detected by a distance measuring sensor 100 which is a sheet bundle thickness detecting means. The number of pulses of the pulse motor 101 is determined from the output result of the detected bundle thickness Ts, the drive is transmitted to the rack 83r via the relay gear 102, and the first of the tape heating unit height regulating members 83 (83a, 83b).
The position of the guide portion 83 ″ in the bundle thickness direction is moved.
The tape heating unit height regulating member 83 (83a, 83b) is connected via the linear guide 103 to the above-described support member measuring plate 74 (74).
a, 74b) so as to be vertically movable. When the printed surface of the sheet stored on the storage tray 9 is up (f
aceup), as shown in FIG. 14, the first guide portion 83 ″ of the tape heating portion height regulating member 83 (83a, 83b).
Is raised by a-Ts / 2 = X1 (a is a constant). Thus, the positioning first roller 69 (6
9a, 69b) are a-
Ts / 2 = X1, the position of the uppermost sheet bundle (movable grip plate 17
Is the position of Tc + a (Tc is the center of the center heater, a is a constant), and is constant regardless of the number of bundles. When the bind tape 26 is bound, the wrap width of the tape on the front cover side can always be kept constant.

When the printing surface of the sheet stored on the storage tray 9 is down (face down), as shown in FIG. 15, the tape heating unit height regulating member 83 (83a, 83a,
83b), the position of the first guide portion 83 ″ in the bundle thickness direction is lowered by a−Ts / 2 = X1 (a is a constant).
9a, 69b) are a-
Ts / 2 = X1 and the sheet bundle nipping drive unit is lowered to the lowermost position of the sheet bundle (fixed grip plate 16
Is the position of Tc-a (Tc is the center of the center heater, a is a constant), and is constant regardless of the number of bundles. Therefore, when the bind tape 26 is bound,
The folded width of the tape on the back cover side can always be kept constant.

<Second Embodiment> In this embodiment, the case where the first positioning roller 69 (69a, 69b) is fixed to the movable grip plate 17 (17a, 17b) (faceup) will be described. . At this time,
When the bundle is nipped and transported by the tape heating unit, as shown in FIG. 16, the first rollers 69 (69a, 69b) positioned to the position of the first guide 83 "rise, and the movable grip plate 17 (17a, 17b). That is, the uppermost surface of the sheet bundle is constant irrespective of the bundle thickness, and when the bind tape 26 is bound, the folding width of the tape on the front cover side is always constant. For example, the user prefers that the amount of wrapping of the tape on the front cover is always constant, but not a few users prefer that the amount of wrapping of the tape is always equal between the front and back sides.

Then, the user selects on the operation unit whether the amount of folding of the tape is equal on the front and back sides, and the sheet storage / alignment unit 202 detects the thickness of the sheet bundle and outputs the same. According to the result, the first guide portion 8 of the tape heating portion height regulating member 83 (83a, 83b).
The position of the first guide portion 83 "(= the position of the movable grip plate 17 = the top surface of the sheet bundle) Tg1 and the tape center Tc are controlled as shown in FIG. Let b be the distance. A predetermined number of sheets are stored on the storage tray 9 and the movable grip plate 17
(17a, 17b) detects the sheet bundle thickness Ts by the distance measuring sensor 100 when the sheet bundle is sandwiched. Here, the position in the bundle thickness direction of the first guide portion 83 ″ of the tape heating portion height regulating member 83 (83a, 83b) by the pulse motor 101 is represented by b− ／ Ts = X2 (b = Tg1−Tc constant) ), So that the positioning first roller 69 (6
9a, 69b) is a b-
The sheet bundle holding drive unit is lowered by だ け Ts = X2. Accordingly, the center of the sandwiched sheet bundle is located at the position of Tc (Tc is the center of the bind tape) and becomes constant regardless of the number of bundles. When the bind tape 26 is bound, the folding width of the tape on the front cover side and the back cover side is reduced. Can always be equal.

<Third Embodiment> In the present embodiment, the case where the first positioning roller 69 (69a, 69b) is fixed to the fixed grip plate 16 (16a, 16b) (fadeddown) will be described. . At this time, when the bundle is nipped and conveyed by the tape heating unit, as shown in FIG. 17, the positioning first rollers 69 (69a, 69b) move up to the position of the first guide portion 83 ", and the fixed grip plate 16 (16a , 16b) are also positioned at the same height, that is, the lowermost surface of the sheet bundle is constant irrespective of the bundle thickness, and when the bind tape 26 is bound, the folding width of the front cover side tape is always constant. ,
While some users prefer a cover with a constant amount of wrap around the tape, many users prefer that the amount of wrap around the tape always be the same on both sides.

Therefore, the user selects whether the folded amount of the tape is equal between the front side and the back side, and the thickness of the sheet bundle is detected in the sheet storage / alignment unit 202, and the re-taping is performed based on the output result. The position in the bundle thickness direction of the first guide portion 83 ″ of the heating portion height regulating member 83 (83a, 83b) is controlled. As shown in FIG. 17, the position of the first guide portion 83 ″ (= fixed grip plate 16). Position =
Let c be the distance between the lowermost surface of the sheet bundle (Tg2) and the tape center Tc. A predetermined number of sheets are stored on the storage tray 9, and the movable grip plates 17 (17a, 17a) are provided.
b), when the sheet bundle is nipped, the distance measuring sensor 100 detects the sheet bundle thickness Ts. Here, the tape motor heating section height regulating member 83 (83
a, 83b) in the bundle thickness direction of the first guide portion 83 ″ is raised by c−ＴTs = X3 (c = Tg2−Tc = constant).
9a, 69b) are c-
ＴTs = X3, 83 ″ for each sheet bundle nipping drive unit
Accordingly, the sheet bundle nipping drive unit is raised by c-1 / 2Ts = X3. Accordingly, the center of the sandwiched sheet bundle is located at the position of Tc (Tc is the center of the bind tape), and becomes constant regardless of the number of bundles.
When the is bound, the folding width of the tape on the front cover side and the tape on the back cover side can always be made equal.

[0068]

As described above, according to the invention of the present application, based on the value of the thickness detection of the sheet bundle processed in the first processing station and the switching instruction by the switching means,
By the control means controlling the positioning of the guide member,
Since the sheet bundle can be positioned at a predetermined position in the second sheet processing station, the amount of wrapping of the front cover tape and the wrapping of the back cover tape can be determined based on the user's selection without being affected by the change in the thickness of the sheet bundle. The same amount, or a constant amount of wrap around the cover tape,
Alternatively, it is possible to switch whether the amount of folding of the tape on the back cover is constant.

[Brief description of the drawings]

FIG. 1 is a front sectional view of a bookbinding apparatus to which a sheet storage / alignment apparatus according to the present invention is applied.

FIG. 2 is a perspective view of a sheet storage / alignment device according to the present invention.

FIG. 3 is a perspective view illustrating a state in which a sheet bundle is conveyed.

FIG. 4 is a perspective view showing the same operation.

FIG. 5 is a top view showing a tape cutting state in the tape transport device.

FIG. 6 is a front sectional view of the same.

FIG. 7 is a top view showing a tape transport state in the tape transport device.

FIG. 8 is a perspective view showing a state where a bookbinding bundle is put into a stacker.

FIG. 9 is a front sectional view of the sheet holding / conveying device.

FIG. 10 is a side view of the sheet holding / conveying apparatus as viewed from a tape heating apparatus side.

FIG. 11 is a top view of the sheet holding / conveying device.

FIG. 12 is a diagram illustrating a state in a sheet bundle thickness direction in a sheet bundle conveyance process.

FIG. 13 is an explanatory diagram illustrating a moving state of a sheet bundle in a sheet bundle thickness direction.

FIG. 14 is an explanatory diagram for explaining a state in which the tape heating unit height regulating member moves in the sheet bundle thickness direction.

FIG. 15 is an explanatory diagram illustrating a state in which the center of the sheet bundle is moved from the center of the bind tape.

FIG. 16 is an explanatory diagram illustrating a state in which the center of the sheet bundle is moved from the center of the bind tape in the second embodiment.

FIG. 17 is an explanatory diagram illustrating a state in which the center of the sheet bundle is moved from the center of the bind tape in the third embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Bookbinding apparatus 16a Sheet holding means (fixed side holding means) (fixed grip plate) 16b Sheet holding means (fixed side holding means) (fixed grip plate) 17a Sheet holding means (movable side holding means) (movable grip plate) 17b Sheet Holding means (movable side holding means) (movable grip plate) 69 Positioning member (first positioning roller) 76a Transport driving means (pulse motor) 76b Transport driving means (pulse motor) 83 Guide means (tape heating section height regulating member) REFERENCE SIGNS LIST 100 sheet bundle thickness detecting means (distance measuring sensor) 101 guide member driving means (pulse motor) 110 control means 111 switching means 202 first processing station (sheet storing / aligning apparatus) 203 sheet bundle nipping and conveying apparatus 204 second processing station ( Tape heating device) 206 Physical sheet bundle conveying means (bound bundle conveying device) P ₁ a first position (alignment sheet Tabakyo lifting position) P ₂ a second position (tape heating position) Sb sheet bundle Sc sheet bundle (Completed bound bundle)

Claims (8)

[Claims] 1. A sheet holding means comprising a movable holding means and a fixed holding means for holding a sheet bundle processed in a first processing station at a first position, and by moving the sheet holding means. Transport driving means for positioning the sheet bundle at a second position of the second processing station for processing the sheet bundle, and moving in the sheet bundle thickness direction in synchronization with movement of the sheet pinching means in the sheet bundle thickness direction In a sheet bundle nipping and conveying device comprising a positioning member capable of moving the positioning member in the thickness direction of the sheet bundle and guiding the sheet member, the thickness of the sheet bundle processed by the first processing station may be reduced. Sheet bundle thickness detecting means for detecting, guide member driving means for moving the guide means in the sheet bundle thickness direction, and the position by the guide member driving means Switching means for switching the moving direction of the determining member in the sheet bundle thickness direction; and the thickness of the sheet bundle detected by the sheet bundle thickness detecting means,
Control means for controlling the guide member driving means based on a switching signal from the switching means. 2. The bookbinding apparatus according to claim 1, further comprising: a sheet bundle nipping and transporting device according to claim 1; and a processing sheet bundle transporting unit that transports a sheet bundle bound by the sheet bundle nipping and transporting device. The bookbinding apparatus is characterized in that the station is a sheet bundle storage / alignment device, and the second processing station is a tape heating device that heats and bonds the bind tape. 3. When the switching member raises the positioning member, the center of the sheet bundle is positioned above the center of the bind tape. When the switching member lowers the positioning member, the sheet bundle moves. 3. The bookbinding apparatus according to claim 2, wherein a center of the binding tape is located below a center of the bind tape. 4. A sheet holding means comprising a movable holding means and a fixed holding means for holding a sheet bundle processed in the first processing station at a first position, and by moving the sheet holding means. Transport driving means for positioning the sheet bundle at a second position of the second processing station for processing the sheet bundle, and movable in substantially the same direction as the moving amount of the movable side holding means in the sheet bundle thickness direction. A sheet bundle nipping and conveying device having a positioning member and guide means for moving the positioning member in the sheet bundle thickness direction to guide the sheet bundle, wherein the thickness of the sheet bundle processed by the first processing station is detected. Sheet bundle thickness detecting means, guide member driving means for moving the guide means in the sheet bundle thickness direction, and whether or not to activate the guide member driving means And a control means for controlling the guide member driving means. The sheet detected by the sheet bundle thickness detecting means when the switching of the guide member driving means is performed by the switching means. Wherein the control means controls the guide member driving means based on a thickness of the bundle. 5. The positioning member moves by 移動 of the movement amount according to the movement amount of the movable side holding means, and the reference position of the guide means is set at the center of the sheet bundle center and the center of the second processing station. When the sheet bundle thickness detected by the sheet bundle thickness detecting means is set to Ts, the control amount X1 of the guide means is expressed as follows: X1 = a−Ts / 2 (a is a constant). The sheet bundle holding and conveying device according to claim 4. 6. The positioning member is moved by the moving amount according to the moving amount of the movable side holding means constituting the sheet holding means, and the reference position of the guide means is set to be equal to the upper surface position of the sheet bundle. When the predetermined positions of the two processing stations are matched, assuming the bundle thickness Ts detected by the sheet bundle thickness detecting means, the control amount X2 of the guide means is X2 = b-1 / 2Ts (b is a constant). The sheet bundle nipping and conveying device according to claim 1, wherein: 7. The positioning member moves by the moving amount according to the moving amount of the fixed side holding means, and the arrangement position of the guide means is such that the lower surface position of the sheet bundle and the predetermined position of the second processing station are set. The control amount X3 of the guide means is expressed as X3 = c-1 / 2Ts (c is a constant), assuming that the sheet thickness Ts detected by the sheet bundle thickness detecting means is the same. 3. The sheet bundle sandwiching and conveying device according to item 1. 8. A bookbinding comprising: the sheet bundle holding and conveying device according to claim 4; and a processing sheet bundle conveying means for conveying a sheet bundle bound by the sheet bundle holding and conveying device. In the apparatus, the first processing station is a sheet bundle storage / alignment apparatus, and the second processing station is a tape heating apparatus for heating and bonding a bind tape.