JP2001019261A - Sheet carrier device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheet carrier device forming a sheet bundle by arranging sheets and reducing cost by simplifying a driving mechanism to be used at the time of carrying this sheet bundle. SOLUTION: A sheet accumulation part 2 and a cover accumulation part 10 are provided on a sheet carrier device 1. A timing belt 3 is tightly stretched between a driving roller 6a and a support roller 6b to be driven by a driving motor 4. Carrier members 5a, 5b are provided on the timing belt 3. A head end of a sheet Pa is stopped by a stop plate of the carrier member 5a, when the driving motor 4 works, the carrier member 5a reciprocates in a view S direction and butting arrangement of accumulation of the sheet Pa in the lengthy direction is carried out. When a specified number of the sheets Pa are accumulated on the sheet accumulation part 2 and a sheet bundle is formed, the sheet bundle is carried as a carrier plate 5q of the carrier member 5b is made contact with a rear end of the sheet bundle and to pressurize it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet transporting apparatus which forms a sheet bundle by aligning sheets, and simplifies a driving mechanism used to transport the sheet bundle, thereby reducing costs.

[0002]

2. Description of the Related Art In a bookbinding process, there is a case where sheets output one by one from a printing machine or the like are stacked one by one by a sheet stacking unit and are conveyed to the bookbinding machine. A stopper for aligning the leading edge of the sheet, and a sheet behind the sheet in order to align the lengthwise overlap of sheets output one by one from a printing machine and sequentially fed to the position of the stopper are provided in the sheet stacking section. There is provided an abutting plate for pushing and pushing the edges, and a sheet bundle feed roller for discharging a sheet bundle formed by stacking one sheet of paper.

FIG. 5 is a schematic side view showing an example of a sheet conveying device 50 having such a sheet stacking section 60.
In FIG. 5, the conveyor 51 is stretched between a driving roller 51a and a supporting roller 51b which are connected to a rotating shaft of a driving motor (not shown).

[0005] 52 is connected to a solenoid 53 and
A stopper 54 that rotates in the direction is a guide rod for the solenoid 53. 55a and 55b are paper bundle feed rollers which are connected to a rotating shaft of a drive motor (not shown). 56
Is an abutting plate connected to the drive motor 57 and the power transmission mechanism 57a. When the drive motor 57 rotates, the rotational motion is converted into a linear motion and reciprocates in the direction of arrow S.

Reference numeral 58 denotes a carry-in section for carrying paper discharged from a printing machine or the like into the paper stacking section 60; 58a, a paper feed roller provided in the carry-in section 58; 59, a paper feed roller;
Reference numeral 1 denotes a sheet bundle discharge unit. Next, the sheet transport device 5 shown in FIG.
The operation of 0 will be described. When the size of the paper conveyed into the paper stacking unit 60 is determined, the solenoid 53 moves the guide rod 5
The position of the stopper 52 is adjusted by appropriately moving in the arrow Q direction along 3.

Next, the sheets Pa carried in from the carry-in section 58 to the sheet accumulating section 60 are sequentially accumulated with their leading ends stopped by the stopper 52. At this time, the butting plate 56
Reciprocate in the arrow S direction to push out the rear end of the paper Pa, and operate so that the overlap in the length direction of each paper Pa is aligned.

[0007] A predetermined number of sheets P
a are accumulated and a sheet bundle is formed, the solenoid 53
Operates to rotate the stopper 52 downward in the direction of arrow R to release the stopped state of the sheet bundle. The sheet bundle is moved by the driving of the conveyor belt 51 and the feed rollers 55a and 55b, and is carried out from the discharge unit 61 to the next process from the direction of arrow T. The stopper 52 rotates upward in the direction of the arrow R by the operation of the solenoid 53, and stops the leading end of the paper Pa carried into the paper stacking unit 60 to form the next bundle of paper.

[0008]

As described above, in the conventional paper conveying apparatus as shown in FIG. 5, a solenoid for rotating the stopper and a motor for reciprocating the solenoid are provided.
And a motor for driving the butting plate and a drive motor for the feed roller for transporting the bundle of sheets are required, and since there are many drive mechanisms, the mechanisms are complicated and the production cost and power cost are high. There was a problem of becoming.

The present invention has been made in view of the above problems, and has as its object to provide a sheet transport apparatus which forms a sheet bundle by aligning sheets, and which simplifies a driving mechanism used for transporting the sheet bundle and reduces costs. And

[0010]

An object of the present invention is to provide a sheet conveying apparatus for conveying a sheet bundle formed by accumulating one printed sheet in the invention according to the first aspect. A guide plate on which the paper is placed, a transport belt to which the transport member is fixed, and a drive motor for driving the transport belt are provided in the paper transport device, and the leading edge of the sequentially loaded paper is provided to the transport member. Then, the conveyance belt is reciprocated by the driving motor and the overlap in the longitudinal direction of the paper is butted by the rear plate, and the rear end of the sheet bundle is provided by the front plate provided on the conveyance member. This can be achieved by a configuration in which the sheet is pressed and conveyed.

According to a second aspect of the present invention, in the paper transport apparatus of the first aspect, a transport belt is disposed below the guide plate with a gap therebetween.

According to a third aspect of the present invention, in the paper transport apparatus according to the first or second aspect,
The conveyance member is detachably fixed to a conveyance belt.

According to the first aspect of the present invention, the conveying member fixed to the conveying belt causes the rear plate for stopping the leading edge of the sheet to perform an action of abutting the overlap in the longitudinal direction of the sheet and to form the sheet bundle. It has a front plate that presses and conveys the rear end. Since the operation of stopping the leading edge of the sheet, the operation of aligning the sheets, and the operation of transporting the sheet bundle can be realized only by the operation of the drive motor that drives the transport belt, the solenoid that drives the stopper is different from the conventional example. This is unnecessary, and the number of places for installing various motors as driving sources is reduced, so that the cost can be reduced.

According to the second aspect of the present invention, the transport belt is disposed below the guide plate with a gap therebetween. For this reason, only the transport belt can be moved without moving the paper placed on the guide plate, and the transport member fixed to the transport belt can be smoothly operated.

In the invention according to claim 3, the transport member is detachably fixed to the transport belt, so that maintenance such as repair and replacement of the transport member can be easily performed.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A paper transport device according to an embodiment of the present invention will be described below. FIG. 1 is a side view showing an abutting state of a sheet conveying device according to an embodiment of the present invention, FIG. 2 is a side view showing a state of feeding a sheet bundle, and FIG.
FIG. 3 is a perspective view illustrating a main part of the sheet transport device. In FIG. 1, a sheet transport unit 1 includes a sheet stacking unit 2 and a cover stacking unit 1.
0 is provided. Timing belt (transport belt)
Numeral 3 is stretched between a driving roller 6a driven by the driving motor 4 and a supporting roller 6b.

The timing belt 3 includes a conveying member 5a,
5b is provided. Reference numeral 7 denotes a carry-in portion for the paper Pa discharged from a printing machine or the like, 7a and 7b paper feed rollers, 7x a rear end of the paper Pa, and a guide plate 9 provided on the paper stacking portion 2. A reference numeral 8 denotes a sheet bundle discharge unit, and 8a denotes a sheet discharge roller. A transport plate 5q is provided at the front and a stop plate 5p is provided at the rear when viewed from the transport direction of the sheet bundle of the transport members 5a and 5b.

Referring now to FIG. 3, the guide plates are disposed on the left and right of the timing belts 3 and 3a, and are composed of a flat plate 9a and a side plate 9r perpendicular to the flat plate 9a, and a flat plate 9b and a side plate 9s perpendicular to the flat plate 9b. You. Reference numeral 21 denotes a guide plate interval adjusting belt, which is connected to the flat plate 9 of each guide plate by connecting portions 9x and 9y.
a, 9b.

Reference numeral 22 denotes a driving motor of the interval adjusting belt 21;
22a is a pulley connected to the output shaft, and 22b is a supporting pulley. By driving the drive motor 22, the interval adjusting belt 21 is appropriately moved in the direction of the arrow V to adjust the interval between the side plates 9r and 9s of each guide plate to the size in the width direction of the sheet.

The positions of the flat plates 9a and 9b of each guide are shown in FIG.
As shown in (2), it is set at a high position with a gap between the timing belts 3 and 3a. When the paper Pa is carried into the paper stacking unit 2, the leading end of each paper Pa is stopped by the stop plate 5 of the transport member 5a.
Stop by p. Also, each time one sheet of paper Pa is carried in, the drive motor 4 is rotated forward and reverse to continuously switch the moving direction of the timing belt 3 forward and backward, and the transport member 5a reciprocates in the arrow S direction. Let it. In this way,
The overlap in the length direction of the paper Pa is aligned. As described above, in order to reciprocate the timing belt 3, the driving motor 4 uses, for example, a stepping motor.

At this time, since the positions of the flat plates 9a and 9b of each guide are set at a high position with a gap from the timing belts 3 and 3a, the timing belt 3 continuously moves forward and backward in the moving direction. Even if it is changed
The lowermost part of the paper Pa placed on the sheets a and 9b does not move in conjunction with the timing belt 3, and the overlap of the paper Pa in the length direction can be stably aligned.

When a predetermined number of sheets Pa are stacked on the sheet stacking unit 2 to form a sheet bundle, the timing belt 3 is driven to move the conveying member 5a to the sheet bundle P as shown in FIG.
b, and separates the transport plate 5q of the transport member 5b provided on the opposite side of the timing belt 3 from the sheet bundle Pb.
Contact the rear end of Thus, the transport members 5a, 5b
When the timing belt 3 is moved to change the position, the sheet bundle Pb placed on the flat plates 9a and 9b can move in conjunction with the movement of the timing belt 3 as described above. Absent.

The transport plate 5q of the transport member 5b is
When the timing belt 3 is in contact with the rear end of the
When the sheet bundle Pb is moved in the direction, the sheet bundle Pb is pushed by the conveying member 5b and is conveyed toward the discharge unit 8. When the timing belt 3 is further moved and the sheet bundle Pb is discharged from the discharge unit 8 by the conveying member 5b, the conveying member 5a is again moved to a predetermined position of the sheet stacking unit 2 as shown in FIG. The leading edge of the sheet that is carried in to form the sheet bundle is stopped.

As shown in FIG. 2, a sheet bundle of one book is formed, is conveyed by the conveying member 5b, and is discharged from the discharge section 8, and is conveyed again as shown in FIG. 1 instead of the conveying member 5b. While the member 5a moves to a predetermined position on the sheet stacking unit 2, the printing of the sheet Pa forming a new sheet bundle is stopped by the program of the printing press, and the sheet Pa is in a standby state. By making the moving speed of the timing belt 3 faster than the carrying speed of the paper Pa from a printing machine or the like, the standby time can be reduced and a paper bundle can be formed efficiently.

FIG. 4 (a) shows the transfer member 5a and the fixed member 3
FIG. 4B is an exploded perspective view showing a state before engagement with x, and FIG. 4B is a perspective view showing a state where the transport member 5a and the fixed member 3x are engaged. As shown in FIG. 4A, a fixing member 3x having an engaging groove 3y is fixed to the timing belt 3 with an adhesive or the like. An engagement projection 5x is provided on the stop plate 5p of the transport member 5a, and the stop plate 5p and the transport plate 5q are
Connect by y.

The engaging projection 5x provided on the stop plate 5p of the conveying member 5a is engaged with the engaging groove 3y formed on the fixing member 3x to fix the conveying member 5a to the fixing member 3x. As described above, since the transport member 5a is detachably fixed to the fixing member 3x, maintenance such as repair and replacement of the transport member 5a can be easily performed. Further, maintenance of the fixing member 3x can be easily performed in a state where the transport member 5a is pulled out.

In the above example, the timing belt 3 is provided with a plurality of transport members 5a and 5b, and the stop plate 5 of the transport member 5a is provided.
Using p and the transport plate 5q of the transport member 5b to stop the leading edge of the sheet, align the overlap in the longitudinal direction of the sheet,
The conveyance is performed by pressing the rear end of the sheet bundle. The present invention is not limited to such a configuration, and it is also possible to adopt a configuration in which the above-described operation is performed using a stop plate and a transport plate of a single transport member.

[0028]

As described above, according to the first aspect of the present invention, the transport member fixed to the transport belt is
A rear plate for stopping the leading edge of the sheet also has a function of abutting the overlap in the longitudinal direction of the sheet and a front plate for pressing and conveying the rear end of the sheet bundle. Since the operation of stopping the leading edge of the sheet, the operation of aligning the sheets, and the operation of transporting the sheet bundle can be realized only by the operation of the drive motor that drives the transport belt, the solenoid that drives the stopper is different from the conventional example. This is unnecessary, and the number of places for installing various motors as driving sources is reduced, so that the cost can be reduced.

Further, in the invention according to claim 2, the transport belt is arranged below the guide plate with a gap therebetween. For this reason, since only the transport belt can be moved without moving the paper placed on the guide plate, the transport member fixed to the transport belt can be smoothly operated.

According to the third aspect of the present invention, since the transport member is detachably fixed to the transport belt, maintenance such as repair and replacement of the transport member can be easily performed.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a sheet conveying device according to an embodiment of the present invention.

FIG. 2 is a schematic side view of a sheet conveying device according to an embodiment of the present invention.

FIG. 3 is a perspective view showing a main part of FIGS. 1 and 2;

FIG. 4 is a perspective view of a transport member.

FIG. 5 is a side view of a conventional example of a sheet conveying device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Paper conveyance apparatus 2 Paper accumulation part 3 Timing belt 4 Driving motor 5a, 5b Transportation member 5p Stop plate 5q Transportation plate 9 Guide plate 10 Cover accumulation part 11 Cover transportation path Pa paper

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Masashige Sugimoto 1601 Asahi Jinoshita, Shin-Asahi-cho, Takashima-gun, Shiga Prefecture Horizon International Co., Ltd. F-term (reference) 3F054 AA01 AB01 AC04 BA01 BA03 BA04 BH07 BJ05 BJ06 BJ07

Claims (3)

[Claims] 1. A sheet conveying device for conveying a sheet bundle formed by accumulating one printed sheet of paper, wherein a guide plate on which sheets are placed and a conveying member are fixed to the sheet conveying device. And a driving motor for driving the conveying belt are provided, the leading edge of the paper sequentially conveyed is stopped at the rear plate provided on the conveying member, and the conveying belt is reciprocated by the driving motor. A sheet transport device, wherein the overlap in the longitudinal direction of the sheets is aligned by the rear plate, and the rear end of the sheet bundle is pressed and transported by a front plate provided on a transport member. 2. The sheet conveying device according to claim 1, wherein a conveying belt is disposed below the guide plate with a gap therebetween. 3. The sheet conveying device according to claim 1, wherein the conveying member is detachably fixed to a conveying belt.