JP2003054787A - Paper direction changing device - Google Patents

Paper direction changing device

Info

Publication number
JP2003054787A
JP2003054787A JP2001244412A JP2001244412A JP2003054787A JP 2003054787 A JP2003054787 A JP 2003054787A JP 2001244412 A JP2001244412 A JP 2001244412A JP 2001244412 A JP2001244412 A JP 2001244412A JP 2003054787 A JP2003054787 A JP 2003054787A
Authority
JP
Japan
Prior art keywords
sheet
rotation speed
paper
rollers
speed variable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2001244412A
Other languages
Japanese (ja)
Other versions
JP4587615B2 (en
Inventor
Akira Nakajima
Yamato Shiraishi
昌 中島
大和 白石
Original Assignee
Horizon International Inc
ホリゾン・インターナショナル株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Horizon International Inc, ホリゾン・インターナショナル株式会社 filed Critical Horizon International Inc
Priority to JP2001244412A priority Critical patent/JP4587615B2/en
Publication of JP2003054787A publication Critical patent/JP2003054787A/en
Application granted granted Critical
Publication of JP4587615B2 publication Critical patent/JP4587615B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

PROBLEM TO BE SOLVED: To enable rotation of a sheet with a simple mechanism and simple control, and to be able to convey the sheet in any direction from above to below, from below to above and horizontally. To provide a direction change device. SOLUTION: A pair of conveying belts 3, 4 facing each other are provided.
The paper 12 to be rotated is inserted and conveyed, and in the middle of the conveyance, there is a speed difference 2 between the speeds of the conveyance belts 3, 4 arranged coaxially on both sides of the conveyance belts 3, 4. The paper 12 is brought into contact with the two rotation speed variable rollers 7 and 8 and rotated, and this rotation is continued from the time when the leading edge of the paper 12 reaches the rotation speed variable rollers 7 and 8 until after a fixed time set in advance. Immediately after the elapse, the speed of the rotation speed variable rollers 7 and 8 is made equal to the conveyance speed of the conveyance belts 3 and 4 from the time when the sheet 12 passes through the rotation speed rollers 7 and 8 to the end.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper orientation conversion device for converting vertically oriented paper into horizontally oriented paper.

[0002]

2. Description of the Related Art For example, a vertically oriented sheet discharged from a printing apparatus may be converted into a horizontally oriented sheet and conveyed to a post-processing apparatus such as a bookbinding apparatus. In this case, a paper direction changing device is arranged between the printing device and the post-processing device to change the direction of the paper while conveying the paper. As such a paper direction changing device, a paper carrying force is obtained from a belt installed on a carrying surface and a ball for pressing the paper, and a turning force for changing the paper direction can be independently rotated or stopped. One that is obtained from two pairs of rollers, a rotating roller and an idle roller, and that changes the direction while confirming the position of the paper to be conveyed and the rotation state of the paper with a sensor, or a pivot that is the center of rotation of the conveyance roller pair and the paper. It is known to use.

[0003]

However, in the sheet direction changing device which uses the former belt and the conveying force of the ball for pressing the sheet and the rotational force of the two pairs of the rotating roller and the idle roller, Since the balls prevent the rotation of the paper while the paper is rotating, it is necessary to control the balls to be separated from the belt. Further, in the latter paper direction changing device that uses a pair of conveyance rollers and a pivot that is the center of rotation of the paper, it is necessary to control the operation of the pivot and press or separate one of the conveyance roller pairs against the paper. The conversion device also has a problem that it requires a complicated mechanism and control. Although it is preferable that any of the sheet direction changing devices conveys the sheet from the upper side to the lower side or in the horizontal direction, it is difficult to convey the sheet from the lower side to the upper side.

The present invention has been made in order to solve such a problem, and makes it possible to rotate a sheet with a simple mechanism and simple control, and at the same time, from the upper side to the lower side, from the lower side to the upper side, and in the horizontal direction. It is an object of the present invention to provide a sheet direction changing device that can convey a sheet in any direction.

[0005]

According to a first aspect of the present invention, there is provided a pair of conveying belts that face each other and insert a sheet between them, and convey the same, and a coaxial belt that contacts the sheet conveyed by the conveying belt. Two rotation speed variable rollers arranged in
Is arranged in the vicinity of the two rotation speed variable rollers,
A sheet detection sensor for detecting passage of the sheet conveyed by the conveyor belt on the two rotation speed variable rollers, and the sheet is conveyed by the conveyor belt with a difference in rotation speed between the two rotation speed variable rollers. The sheet detection sensor detects the leading edge of the sheet conveyed by the conveyance belt, and the trailing edge of the sheet conveyed by the conveyance belt is detected by the sheet detection sensor after a lapse of a predetermined time after the sheet detection sensor detects the leading edge of the sheet conveyed by the conveyance belt. It is characterized in that the rotation speeds of the two rotation speed variable rollers are made equal until the detection.

The present invention according to claim 2 is characterized in that the two rotation speed variable rollers according to claim 1 are separately arranged on both sides of a pair of conveyor belts. Of the two rotation speed variable rollers according to claim 1 or 2, the rotation speed of one rotation speed variable roller is faster than the speed of the pair of conveyor belts, and the rotation speed of the other rotation speed variable roller is After the paper is conveyed by the conveyor belt by the paper detection sensor after a lapse of a predetermined time after detecting the leading edge of the paper conveyed by the conveyor belt by the paper detection sensor while being slower than the speed of the pair of conveyor belts. It is characterized in that the rotation speeds of the two rotation speed variable rollers are made equal to the speeds of the pair of conveyor belts until the end is detected.

According to the present invention, the sheet to be conveyed is lightly held between the pair of conveying belts facing each other provided on the conveying surface to give a conveying force to the sheet, so that the pair of conveying belts always travels at a constant speed. There is no need for complicated control of the conveyance means that accompanies the rotation of the paper, and the paper can be conveyed in any direction from top to bottom, bottom to top and horizontal by holding it by a pair of conveyor belts. Is possible. Further, a rotational force is applied to the conveyed sheet by, for example, two rotational speed variable rollers provided with a speed difference of about twice, and while the sheet is on the two rotational speed variable rollers when a desired rotation is obtained, Since the speeds of the two rotation speed variable rollers are equalized, the paper can be rotated at high speed only by controlling the speeds of the two rotation speed variable rollers, and a complicated operation mechanism for rotating the paper is not required. The mechanism can be simplified.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of a sheet orientation conversion device according to an embodiment of the present invention, FIG. 2 is a side view, FIG. 3 is an enlarged view for explaining the operation of FIG. 1, and FIG. 4 is a view showing operation timing.

In the figure, 1 is a flat guide plate, 2 is a side guide plate, 3 is a conveyor belt, 4 is a conveyor belt for holding paper, 5 is a drive pulley, 5a and 6 are driven pulleys, 7 and 8 are rollers, 9 and 10 are stepping motors, 11
Is a paper detection sensor, 12 is a paper, and 13 is an idle roller (reference numeral is shown in FIG. 2).

The conveyor belt 3 is stretched over a drive pulley 5 and a driven pulley 5a installed at both ends of the conveying section, and similarly, the conveyor belt 4 is stretched over a driven pulley 6, and both conveyor belts 3 and 4 are tensioned. The sheets 12 face each other with a slight contact, that is, with a slight conveying force applied to the sheet 12 located between the conveyor belts 3 and 4, and move at a constant speed over the conveying section.

The roller 7 is rotated by the rotation of the stepping motor 10, and the roller 8 is rotated by the rotation of the stepping motor 9. The two rollers 7 and 8 are separately located on both outer sides of the conveyor belt 3 and equidistant from the center line of the conveyor belt 3, and are arranged side by side on the same axis. An idle roller 13 for pressing 12 onto the roller is provided. The paper detection sensor 11 includes two rollers 7 and 8
It is installed at a position on the same axis between them, and the paper 12 detects the passage of the two rollers 7 and 8.

The lower drive pulley 14 shown in FIG.
Is for driving a conveyor belt for carrying the paper discharged from the printing machine into the paper direction changing device. The paper direction changing device shown in each drawing is installed almost vertically and conveys the paper from the lower side to the upper side. It shows the state to do.

When the direction of the paper is changed by 90 degrees by the paper direction changing device constructed as described above, the roller 8 is moved faster than the speed of the conveyor belts 3 and 4 as shown in FIG. The speed of the roller 8 is set slower than the reference speed by increasing the speed of the roller 7, and the rollers 7 and 8 are rotationally driven at the set speed. Then, the central portion of the paper 12 is inserted between the moving conveyor belts 3 and 4, and the paper 12 is conveyed by the conveyor belts 3 and 4. When the leading edge of the sheet 12 reaches the rollers 8 and 7, the sheet detection sensor 11 detects the leading edge and outputs it.

On the other hand, the paper 12 is pressed against the idle roller 13 and comes into pressure contact with the rollers 7 and 8, and due to the speed difference between the rollers 7 and 8, as shown by reference numeral 12a in FIGS. It rotates about the center as a fulcrum (the holding force by the conveyor belts 3 and 4 is set small). This rotation is continued while the sheet 12 is in contact with the rollers 7 and 8, and is rotated 90 degrees as indicated by reference numeral 12b in FIGS.

The controller (not shown) has a time from the time when the paper 12 comes into contact with the rollers 7 and 8 to the time when the paper 12 rotates by approximately 90 degrees (this time does not change in the size range of A3 size to A5 size). Is set, the detection signal of the leading edge of the paper 12 of the paper detection sensor 11 is input, and the measurement of this time is started. Then, as shown in FIG. 4, when the set time is reached, the rotation speeds of the rollers 7 and 8 are set to the conveyance belt 3,
The speed is controlled to 4 and this speed is continued until the paper detection signal of the paper detection sensor 11 disappears, that is, until the paper 12 no longer contacts the rollers 7 and 8. When the paper detection signal disappears, the rollers 7 and 8 are returned to their original speed difference, and the next paper is rotated. Note that this rotation does not have to be a strict 90 degrees, and the angle can be set to a desired 90 degrees by contact between the rotated paper and the side guide plate 2.

In the above embodiment, the sheet direction changing device is installed vertically and the sheet is conveyed from the lower side to the upper side. However, the sheet may be conveyed from the upper side to the lower side. It goes without saying that the direction changing device may be installed horizontally.

[0017]

As described above, according to the present invention, the sheet to be conveyed comes into contact with the rollers and immediately starts to rotate. Therefore, the sheet can be rotated at a high speed in a short conveying path, and the vertical direction can be obtained by installing the sheet direction changing device. The space including the direction can be reduced.

[Brief description of drawings]

FIG. 1 is a plan view of a sheet orientation conversion device according to an embodiment of the present invention.

FIG. 2 is a side view of the sheet orientation conversion device shown in FIG.

FIG. 3 is an enlarged view for explaining the operation of the sheet orientation conversion device shown in FIG.

FIG. 4 is a diagram showing an operation timing of the sheet orientation conversion device shown in FIG.

[Explanation of symbols]

1 Flat guide plate 2 Side guide plate 3 Conveyor belt 4 Conveyor belt for holding paper 5 drive pulley 5a, 6 driven pulley 7, 8 rollers (Rotary speed variable roller) 9,10 stepping motor 11 Paper detection sensor 12 sheets 13 Idol roller

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Masaru Nakajima             1601 Jonoshita, Asahi, Shin-Asahi-cho, Takashima-gun, Shiga Prefecture             Local Horizon International Stock Association             In-house F-term (reference) 3F102 AA13 AB01 BA03 EB01 EC02                       FA04

Claims (3)

[Claims]
1. A pair of conveyor belts which face each other and insert a sheet between them to convey the sheet, and two rotation speed variable rollers which are coaxially arranged and contact the sheet conveyed by the conveyor belt. A sheet detection sensor that is disposed in the vicinity of the two rotation speed variable rollers and that detects passage of a sheet conveyed by the conveyor belt on the two rotation speed variable rollers. The sheet detection sensor is used to change the direction of the sheet conveyed by the conveyance belt by providing a difference in rotation speed, and the sheet detection sensor after a predetermined time has elapsed after the leading edge of the sheet conveyed by the conveyance belt is detected by the sheet detection sensor. The rotation direction of the two rotation speed variable rollers is made equal until the trailing edge of the paper conveyed by the conveyance belt is detected by Place
2. The sheet direction changing device according to claim 1, wherein the two rotation speed variable rollers are separately arranged on both sides of the pair of conveyor belts.
3. The rotation speed of one rotation speed variable roller of the two rotation speed variable rollers is higher than the speed of the pair of conveyor belts, and the rotation speed of the other rotation speed variable roller is of the pair of conveyor belts. And the trailing edge of the sheet conveyed by the conveying belt is detected by the sheet detecting sensor after a predetermined time has elapsed after the sheet detecting sensor detects the leading edge of the sheet conveyed by the conveying belt. The sheet direction changing device according to claim 1 or 2, wherein the rotation speeds of the two rotation speed variable rollers are set to be equal to the speeds of the pair of conveyor belts until that time.
JP2001244412A 2001-08-10 2001-08-10 Paper orientation conversion device Expired - Fee Related JP4587615B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001244412A JP4587615B2 (en) 2001-08-10 2001-08-10 Paper orientation conversion device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001244412A JP4587615B2 (en) 2001-08-10 2001-08-10 Paper orientation conversion device

Publications (2)

Publication Number Publication Date
JP2003054787A true JP2003054787A (en) 2003-02-26
JP4587615B2 JP4587615B2 (en) 2010-11-24

Family

ID=19074343

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001244412A Expired - Fee Related JP4587615B2 (en) 2001-08-10 2001-08-10 Paper orientation conversion device

Country Status (1)

Country Link
JP (1) JP4587615B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2424734A1 (en) * 2009-04-29 2012-03-07 Goss International Americas, Inc. High speed printed product reorientation method and apparatus

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4838814B1 (en) * 1969-03-15 1973-11-20
JPS4927408Y1 (en) * 1969-03-17 1974-07-25
JPS60258036A (en) * 1984-05-31 1985-12-19 Fuji Xerox Co Ltd Sheet direction change device
JPH02132040A (en) * 1988-11-09 1990-05-21 Sharp Corp Sheet direction changing device
JPH038648A (en) * 1989-06-05 1991-01-16 Katsuragawa Denki Kk Sheet transport device
JPH04133943A (en) * 1990-09-26 1992-05-07 Ricoh Co Ltd Sheet direction control device
JPH04226240A (en) * 1990-07-31 1992-08-14 Xerox Corp Sheet rotator
JPH04277151A (en) * 1991-03-04 1992-10-02 Canon Inc Sheet material transport device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4838814B1 (en) * 1969-03-15 1973-11-20
JPS4927408Y1 (en) * 1969-03-17 1974-07-25
JPS60258036A (en) * 1984-05-31 1985-12-19 Fuji Xerox Co Ltd Sheet direction change device
JPH02132040A (en) * 1988-11-09 1990-05-21 Sharp Corp Sheet direction changing device
JPH038648A (en) * 1989-06-05 1991-01-16 Katsuragawa Denki Kk Sheet transport device
JPH04226240A (en) * 1990-07-31 1992-08-14 Xerox Corp Sheet rotator
JPH04133943A (en) * 1990-09-26 1992-05-07 Ricoh Co Ltd Sheet direction control device
JPH04277151A (en) * 1991-03-04 1992-10-02 Canon Inc Sheet material transport device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2424734A1 (en) * 2009-04-29 2012-03-07 Goss International Americas, Inc. High speed printed product reorientation method and apparatus
EP2424734A4 (en) * 2009-04-29 2012-09-26 Goss Int Americas Inc High speed printed product reorientation method and apparatus

Also Published As

Publication number Publication date
JP4587615B2 (en) 2010-11-24

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