JPH11199113A - Stacker device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To carry out high speed processing by smoothening discharge and stacking of documents by arranging a stacker base with an angle downward on a stacker device to accumulate the documents roughly horizontally discharged in succession in a state of erecting them in the diagonal direction and accumulating them. SOLUTION: When individual documents 1 are separated from a continuous document 1A by a burster device 10 constituted of delivery rollers 11, 12, a blade 13 and a discharge roller 2, the documents 1 are discharged on a stacker belt 4 in succession by the discharge roller 2 and a document guide 3. The discharged documents 1 slide on a stacker base 6A arranged inclined downward, their head ends are nipped between the stacker belt 4 and a presser roller 7, and they are carried by the stacker belt 4. Consequently, rear ends of the documents 1 quickly drop on the stacker belt 4, too. In this way, the head end of the succeeding document 1 is put on the rear end of the preceding document 1 on the stacker belt 4, and the documents 1 are accumulated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a stacker device for stacking documents that are successively discharged almost horizontally one after another in an oblique direction.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 2, a form 1 of a fixed length is successively discharged from a discharge roller 2 almost horizontally, and is guided obliquely downward by a form guide 3 while preventing the form from jumping up. The form 1 is placed on a stacker table 6 provided with a horizontally arranged stacker belt 4 and a support plate 5 for supporting the lower surface of the stacker belt 4, and is pressed against the stacker belt 4 by a holding roller 7 to give a conveying force. , Its report 1
Is transported to the end of the stacker table 6, and is raised along an accumulation guide 8 arranged at that position, and a stacker device 9 configured to accumulate is used. In this type of stacker device 9, the leading end of the next form is placed on the trailing end of the form discharged from the discharge roller 2 onto the stacker belt 4 in order to properly stack the forms 1 at the rear end of the stacker table 6. It is necessary to make them overlap, so that the conveying speed of the stacker belt 4 is set to be lower than the discharging speed of the discharging roller 2. Then, as shown in FIGS. 3A and 3B, the form 1 a discharged from the discharge roller 2 falls on the stacker belt 4 and is pressed against the stacker belt 4 by the holding roller 7. While being conveyed at a low speed, the discharge roller 2 sends out the next form 1b at a high speed,
As a result, the leading end of the following form 1b overtakes the trailing end of the form 1a on the stacker belt 4 and falls on it.

[0003]

However, in such a conventional stacker device, the form 1 discharged from the discharge roller 2 is used.
It takes time for the trailing edge of the document a to fall on the stacker belt 4, so that the leading edge of the following form 1b ejected at a high speed by the ejection roller 2 as shown in FIG. There is a problem that the sheet may hit the rear end of the form 1a or go under the sheet 1a as shown in FIG. 4B, thereby causing a jam or a stacking failure. In particular, this phenomenon increases the processing speed (for example, 200 m /
min), making high-speed operation difficult.

The present invention is intended to solve such a problem. Even during high-speed processing, a form discharged onto a stacker table hits the rear end of a preceding form or falls under the form, thereby causing a jam. To provide a stacker device which can stably stack forms by preventing the occurrence of stacking errors and stacking faults.

[0005] As a result of studying the causes of the above-mentioned conventional problems, the present inventors have found that the form discharged from the discharge roller does not always move smoothly on the stacker table. It may take some time to enter the lower part of the stack, and it may take some time for the form to fall onto the stacker table due to the difficulty in bleeding air between the form and the stacker table. (A), (b)
Had a problem as shown in Therefore, these problems can be solved if the form discharged onto the stacker table falls smoothly onto the stacker table.

[0006]

SUMMARY OF THE INVENTION The present invention has been made based on this finding, and has a configuration in which a stacker table is disposed at an angle downward. With this configuration, the form discharged obliquely downward from the discharge means upstream of the stacker table is slid quickly along the inclined stacker table and is caught under the holding roller. Is easily evacuated, so that the trailing edge of the form quickly descends, and when the leading end of the subsequent form catches up, it will surely be located under the form. For this reason, the documents discharged one after another on the stacker table can be received in a partially overlapped state, and stable stacking can be performed.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a stacker table arranged at a position for receiving a form discharged by a discharging means, comprising a stacker belt for further conveying the form and a support plate for supporting a lower surface of the stacker belt. A stacker unit having a stacker table having a stacker guide, and a stacking guide disposed downstream of the stacker table and guiding the form conveyed on the stacker table to rise in an oblique direction and be stacked. It is characterized in that the table is arranged at an angle downward.

[0008] Here, if the inclination angle given to the stacker table is too small, it is difficult for the discharged form to drop quickly and it is difficult to exert the effect of the present invention. The conveyance of the form on the table becomes unstable, and the stacking becomes difficult. In consideration of these, the angle of the stacker table with respect to the horizontal line is preferably set to about 5 to 15 degrees, and more preferably to about 7 to 10 degrees.

The stacker of the present invention can be applied to any form, for example, a form consisting of a single form, a form in which paper is folded, a form in which paper is folded and stuck, and a postcard or sealed form, a plurality of forms. It can be used to accumulate forms and the like created by collating the single forms described above, and can be used in combination with any form processing device. Specific examples of the form processing device include a device for cutting a continuous form printed by a printer into individual forms and discharging the form, a device for folding the continuous form and cutting and discharging the form to individual forms, and a form for folding a continuous form. Stack,
A device that cuts individual forms, attaches them together, and discharges them.
A device for overlapping and binding a plurality of cut sheets and discharging the cut sheets can be used.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the stacker of the present invention is combined with a burster will be described below. FIG. 1 is a schematic side view showing a bar star device 10 and a stacker device 9A according to an embodiment of the present invention combined therewith, and the same components as those in the conventional example shown in FIG. . In FIG. 1, reference numeral 10 denotes a burster device, which includes a first feed roller 11 that conveys a continuous form 1A, a second feed roller 12 that rotates at a higher speed than the first feed roller 11, and a first feed roller. 11 and second feed roller 12
, A blade 13 disposed at a position in contact with the continuous form 1A, a discharge roller 2 disposed downstream of the second feed roller 12, a form guide 3, and the like.
By using the horizontal perforations formed in the continuous form 1A, the first feed roller 11, the second feed roller 12
Speed difference and individual form 1 by blade 13
And the sheet is discharged by the discharge roller 2 one after another. The discharge roller 2 and the form guide 3 constitute a discharge unit for discharging a form to the stacker 9A.

The stacker device 9A includes a stacker table 6A having a stacker belt 4 and a support plate 5 for supporting the lower surface of the stacker belt 4, which are arranged at a position for receiving the form 1 discharged by the discharge roller 2. Pressing roller 7 for pressing 1 against stacker belt 4 to impart a conveying force
And a stacking guide 8 and the like arranged at the end of the stacker table 6A. Unlike the conventional apparatus, the stacker base 6A is arranged at an angle downward. The angle θ (the angle with respect to the horizontal line) given to the stacker table 6A is usually set to about 5 to 15 degrees, and is set to about 7 degrees in the present embodiment. Other configurations are the same as the conventional one.

Next, the operation of the bar star device 10 and the stacker device 9A will be described. The burster device 10 separates the continuous form 1A into individual forms 1, and discharges the form 1 onto the stacker belt 4 one after another by the discharge roller 2 and the form guide 3. The discharged form 1 quickly slides on the inclined stacker table 6, and the leading end is immediately inserted between the stacker belt 4 and the holding roller 7, and is conveyed by the stacker belt 4. As a result, the form 1
Also falls quickly onto the stacker belt 4. Also,
Since the stacker table 4 is inclined, the air between the form 1 and the stacker table 4 that has fallen is easy to escape, and the rear end of the form 1 quickly descends onto the stacker table 4 from this point. For this reason, the discharge speed of the form by the discharge roller 2 is
For example, even when the height is set to 200 m / min, when the discharge roller 2 discharges the next form 1, the rear end of the preceding form 1 has already descended, and the leading end of the subsequent form 1 When the trailing end of the preceding form 1 being conveyed by the stacker belt 4 is overtaken, the top of the preceding form 1 is overtaken. As shown in FIG. It doesn't hit the back edge or get under it. Thus, as shown in FIG. 1, the forms 1 successively discharged from the discharge rollers 2 are such that the leading end of the following form 1 is superimposed on the rear end of the preceding form 1 on the stacker belt 4, and therefore, No paper jam occurs in this portion, and thereafter, the sheet is fed to the rear end of the stacker belt 4 and is collected well.

[0013]

As described above, in the stacker device of the present invention, the rear end of the form discharged on the stacker belt of the stacker table is quickly lowered by the downward angle of the stacker table. Therefore, the leading end of the following form ejected at a higher speed than the stacker belt is superimposed on the trailing end of the preceding form, so that the form can be discharged and stacked smoothly, and high-speed processing is possible. It has the effect of becoming.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing a bar star device and a stacker device according to an embodiment of the present invention combined therewith.

FIG. 2 is a schematic side view showing a conventional stacker device.

FIGS. 3A and 3B are schematic side views illustrating a state where forms are discharged and stacked on a stacker belt.

FIGS. 4A and 4B are schematic side views illustrating a problem that occurs when a form is discharged and stacked on a stacker belt.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 form 1A continuous form 1a preceding form 1b subsequent form 2 discharge roller 3 form guide 4 stacker belt 5 support plate 6, 6A stacker stand 7 holding roller 8 stacking guide 9, 9A stacker device 10 barster device 11 first feed roller 12 Second feed roller 13 Blade

Continuing on the front page (72) Inventor Kenichi Kobayashi 1-1-1, Ichigagaga-cho, Shinjuku-ku, Tokyo Inside Dai Nippon Printing Co., Ltd. (72) Inventor Naoki Masuda 353 Uedai, Kokawa-cho, Naga-gun, Wakayama Prefecture Duplo Seiko Co., Ltd.

Claims (2)

[Claims] 1. A stacker table arranged at a position for receiving a form discharged by a discharging means, the stacker table having a stacker belt for further conveying the form and a support plate for supporting a lower surface of the stacker belt; A stacking device, which is disposed at a position downstream of the stacker table and guides the forms conveyed on the stacker table to rise in an oblique direction and to be stacked, wherein the stacker table is angled downward. A stacker device, wherein the stacker device is arranged in a position. 2. The stacker according to claim 1, wherein an angle of the stacker table with respect to a horizontal line is set to 5 to 15 degrees.