JPH1194U - Printing equipment - Google Patents

Abstract

(57) [Summary] [PROBLEMS] In a stacking mode, sheets can be surely stacked on a sheet discharge tray, and in a collation mode, sheets can be reliably distributed to a sheet receiving tray without rubbing and discharged. It is to provide a printing device. A collating device is provided in a vertical direction along a plurality of paper receiving trays, and the first device of the paper guiding device.
A belt absorbing / conveying means for receiving a sheet guided by swinging to a position and conveying the belt while sucking air in a vertical direction, and provided to be vertically drivable along a sheet conveying path of the belt absorbing / conveying means. And a paper carrying means for carrying the paper into any of the plurality of paper receiving trays from above the belt of the belt absorbing and carrying means.
Guides the sheet discharged from the printing apparatus main body at the first position diagonally upward toward the upper part of the collating apparatus.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 According to the present invention, a printing apparatus main body having discharge means for discharging printed paper outside the machine, and a plurality of paper receivers arranged and arranged side by side on the side of the printing apparatus main body in a paper discharging direction side, receive the conveyed paper. A collating device for sequentially discharging to a tray, a discharge tray supported between the printing device main body and the collating device and supported by the printing device main body and capable of stacking sheets discharged from the paper discharging means, A sheet guide device selectively oscillated between a first position for receiving the sheet discharged from the sheet discharging means into the collating apparatus main body and a second position for discharging the sheet to the discharge tray; In the stacking mode, the present invention relates to a printing apparatus that discharges sheets discharged from the sheet discharging means to the discharge tray, and in the collation mode, conveys a plurality of sheets discharged from the sheet discharging means to a collating apparatus.

[0002]

[Prior art]

 An increasing number of electrophotographic copiers for copying plain paper are provided with a collating device (sorter). This is very useful when copying conference materials, as it does not require manual collation. On the other hand, recently, with the spread of plate-making and printing integrated machines, printing machines have come to be used for those that print a relatively small number of sheets from a single document. Approaching. For this reason, the demand for online sorters for printing presses has increased.

[0005] However, in the case of a printing machine, unlike a copying machine, if an on-line sorter is connected, a paper output storage tray which does not require collation work is required separately. There is. That is, since the printing press is often used for printing a large number of copies, it requires a discharge tray having a large discharge stacking amount (500 to 1000 sheets), and the location of the discharge tray becomes a problem.

In order to solve this problem, as shown in FIG. 6, a conventional collating apparatus is generally provided with a dedicated non-sorting discharge tray 42a (Japanese Patent Laid-Open No. 60-248). 566).

In a sort mode that requires collation work, printed paper takes a path like A, but in a non-sort mode where collation is unnecessary, it takes a path like B to respond. I was

However, such a conventional method has a drawback that the installation space of the sorter becomes large and the protruding portion of the non-sort discharge tray becomes an obstacle. Furthermore, in non-sort mode, skew occurs due to the length of the conveyance path, and the ejection alignment on the ejection tray becomes poor, and the probability of paper jam occurring on the way increases. There is also a problem that the treatment when it occurs is very troublesome.

[0007] As one method for dealing with such a problem, as shown in FIG. 7, there is a method in which the uppermost tray of the sorter is a dedicated large-capacity discharge tray 42b for non-sorting. According to this method, the space can certainly be reduced and there is no protrusion.

However, even with this apparatus, the problem that the transport path for non-sorting is still long, the height of the entire sorter is high, and the path of the paper is not linear, so that the problem that the thick paper cannot be transported cannot be solved. Also, since the paper transport guide wrapping part of the large capacity tray is small, it is not possible to discharge the paper with sufficient stiffening, which may cause a paper discharge jam or decrease the paper discharge uniformity. There is also a problem.

[0009]

[Problems to be solved by the invention]

 The present invention solves the above-mentioned problems in the prior art, and in the stacking mode, ensures that sheets are stacked in the output tray, and in the collation mode, the sheets are reliably distributed to the sheet receiving tray without rubbing. It is an object of the present invention to provide a printing device capable of discharging the paper.

[0010]

[Means for Solving the Problems]

 In order to solve the above-mentioned problem, the present invention provides a printing apparatus main body having a discharging means for discharging printed paper outside the apparatus, and a printer which is disposed side by side on the side of the printing apparatus main body in the paper discharging direction and transported. A collating device for sequentially discharging the collected sheets to a plurality of paper receiving trays arranged in a vertical direction, and a printing apparatus main body supported between the printing apparatus main body and the collating apparatus, and Between a first position for receiving the sheet discharged from the sheet discharging means in the main body of the collating apparatus and a second position for discharging the sheet discharged from the sheet discharging means to the sheet discharging tray. And a paper guide device that is selectively oscillated in the stacking mode. In the stacking mode, the paper discharged from the paper discharging unit is discharged to the paper discharging tray. In the collation mode, the paper discharged from the paper discharging unit is discharged. A printing device that transports multiple sheets to a collating device The collating device is provided in a vertical direction along a plurality of paper receiving trays, and receives the paper guided by the swing of the paper guiding device to the first position and sucks the air in the vertical direction. A belt absorbing / conveying means for conveying the belt, and a vertically movable drive provided along a sheet conveying path of the belt absorbing / conveying means; A sheet feeding means for feeding the sheet, wherein the sheet guiding device guides the sheet ejected from the printing apparatus main body obliquely upward toward the upper portion of the collating apparatus when the sheet is in the first position. Features.

The present invention is effective when the paper guided to the upper part of the collating device via the paper guiding device is urged by airflow in a direction in which the paper comes into contact with the belt absorbing and conveying means. is there.

[0012]

[Embodiment of the invention]

 FIG. 1 shows an embodiment of the present invention, and shows a schematic structure of a stencil-type stencil printing machine provided with an online collating device (hereinafter referred to as a "sorter").

The printing apparatus includes a base paper clamping device and an ink supply device (not shown) on the outer peripheral surface and the inner side, respectively (not shown), and a cylindrical plate cylinder 31 having a porous structure that is driven to rotate counterclockwise in the figure. A press roller 32, a paper feeding table 33, a paper feeding roller 34, a belt-type forced paper discharging device 35 as a paper discharging means, a thermal head 36 and a platen roller 37, the original paper stored in a roll shape. 38, there is provided a plate making device for performing thermal plate making, a stencil cutting cutter 39, and a plate discharging device 40 for separating used stencils from the cylindrical plate cylinder 31 and storing them.

The printing paper on the paper feed table 33 is fed one by one from the top by the paper feed roller 34, and an image is formed between the cylindrical plate cylinder 31 and the press roller 32. The sheet is peeled off from the plate cylinder 31, conveyed by a forced sheet discharging device 35, and stacked on a sheet discharging tray 42. On the discharge tray 42, a pair of discharge side guides 43 and a discharge end fence 44 are provided for aligning and stacking print sheets.

As shown in FIG. 1, the paper discharge tray 42 is arranged to be inclined below the paper guide device 1 so that the downstream side in the paper discharge direction is downward. Then, between the printing press and the sorter, the space formed between the paper guiding device 1 and the paper output tray 42 widens from the paper output port of the printing press toward the paper discharging direction in the vertical direction. Has become.

In such a printing apparatus, during normal printing in the non-sorting mode, which is the stacking mode, the paper guide device 1 of the sorter is located at the position C shown by the broken line in the drawing, and the printed paper is discharged as described above. It will be discharged onto the tray 42.

FIG. 2 is a schematic diagram showing the structure of an online sorter. The sheet guide device 1 is configured to convey a sheet by an endless belt 4 stretched between the rollers 2 and 3, and is moved up and down from the sorter body 100 around the axis of the roller 3 as a rotation center. The worm 5 is swingably supported in the direction, and the oscillating operation is performed by rotating the worm 5 meshing with the semicircular worm wheel 6 by the rotation of the motor 7 having the worm 5 attached to the tip. ing. The worm 5, the worm wheel 6, the motor 7, and the like are examples of the swinging means.

The sorter includes, as belt absorbing and conveying means, a cylindrical hollow cylinder 10 having an opening on the outer periphery, a slave cylinder 11 provided below and parallel thereto, and a net-like endless belt 12 bridged between both cylinders. A portion formed by projecting a part of the net-shaped endless belt 12 outwardly by using a middle guide roller 13, a lower guide roller 14, and an upper guide roller 15 as a paper carrying means.

The main cylinder 10 is driven to rotate in a direction indicated by an arrow E by a driving device (not shown), and accordingly, the mesh endless belt 12 is also rotated and moved in a direction indicated by an arrow E in FIG.

The middle guide roller 13, the lower guide roller 14, and the guide roller 15 are fixed to a slider 16 as a unit. The slider 16 is slidable along the rail 17 in the vertical direction in the figure. The middle guide roller 13, the lower guide roller 14, and the upper guide roller 15 are provided rotatably around the central axis of each roller.

The raising and lowering operation of the slider 16 is performed by engaging a screw 18 with a nut 19 and rotating the screw 18 by rotation of a lifting motor 20.

An air suction box 21 is provided between the main cylinder 10 and the slave cylinder 11 along the net-shaped endless belt 12, and the suction operation of the suction fan 22 causes a number of small arrows in FIG. As shown in the figure, an air suction force is generated by the airflow, and the printing paper is suctioned to the surface of the mesh belt and transported.

A plurality of paper receiving trays 23 are arranged in a vertical direction at regular intervals at the tip of the protruding portion of the mesh belt 12. With such a device, the printing paper conveyed by the paper guiding device 1 is conveyed while being sucked on the surface of the endless belt 12, and at the end of the protruding portion of the endless belt 12, as shown by an arrow F in FIG. Then, the paper is discharged toward the paper receiving tray 23 and is stored thereon.

Then, the printing paper is discharged and stored one after another toward the respective trays 23 by sequentially moving the slider 16 up and down in accordance with the discharge of the printing paper from the plate making printing apparatus.

As described above, in the sorter of the type in which the printed paper is sucked by the net belt and conveyed, and distributed to each tray, the rollers and the guide plate do not rub the image surface immediately after printing, so that the image is printed. There is an advantage that no dirt is generated.

FIG. 3 shows an example of an operation panel and a control system of a plate-making printing apparatus to which a sorter is connected. The operation panel is provided with a key for selecting whether or not to use the sorter. When the sorter use key 45 is pressed to turn on the LED lamp 46, a sort mode (collating mode) is set. The swing motor 7 of the sorter is rotated for a predetermined time via the CPU 200 that performs overall control, and the paper guide device 1 swings downward to the first position D shown by a solid line in FIG. All paper discharged from the device is sent to the sorter.

When the sorter use key 45 on the operation panel is pressed again to turn off the LED lamp 46, the swing motor 7 of the sorter rotates again for a predetermined time, and the paper guide device 1 swings upward, and the chain line in FIG. The printing paper discharged from the plate-making printing apparatus at the position C, which is the second position indicated by, is all discharged and stacked on the dedicated discharge tray 42. In this case, the paper guide device 1 retreats upward from the print paper path P and does not hinder the discharge of the paper to the lower discharge tray 42.

FIG. 4 is a diagram simply showing a paper path. In the sort mode, a route like G is taken, and in the non-sort mode, a route like H is taken. The upper guide roller 15 is not a single long roller, but is divided into two rollers. The upper guide roller 15 is provided only at both ends of the endless belt 12, and the roller 15 does not rub the image surface of the printing paper. It has been like that. Further, the paper ejection side guide 43 on the paper ejection tray 42 is of a foldable type. When a sorter is used, the paper guide device 1 is swung downward so as not to obstruct the sorter. It is the best way to use it.

The conveyance speed of the paper guide device 1 can be set to a speed substantially equal to the paper discharge speed when the plate making printing device is printing at the highest speed, and therefore, the conveyance of the printing paper in the sorter is stable. It will be.

When printing is performed on thick paper, the sorter of the embodiment cannot perform collating work depending on the thickness. In this case, the sorter is set to the non-sort mode and directly on the discharge tray 42. To be stored. However, unlike the conventional sorter which cannot perform printing on cardboard at all as shown in FIG. 7, it is greatly improved.

The sorter according to the present invention can easily cope with a printing machine in which the height of the printing paper outlet from the floor surface is different. FIG. 5 is a detailed diagram showing an embodiment in the case of detecting and positioning the angle of the sheet guide device of the sorter.

As described above, the worm 5 and the semicircular worm wheel 6 are engaged with each other, and the rotation of the swing motor 7 causes the paper guide device 1 to swing around the center axis of the roller 3 as shown by an arrow. It has become. On the other hand, sensors 25 and 26 for detecting a swing angle are provided on a bracket 24 fixed to the sorter body, and a detection plate fixed by screws 27 on the semicircular worm wheel 6. 28 are provided. Then, when the projection 28a of the detection plate 28 presses the filler of the sensor 25 or 26, the angle of the paper guide device 1 can be detected. FIG. 5 shows the state of the sort mode, in which the projection 28a pushes the sensor 25. However, in the non-sort mode, the motor 7 rotates and the paper guide device 1 swings upward, and the projection of the detection plate is formed. When the sensor 28a presses the sensor 26, the CPU 200 as a control device controls the motor 7 to stop.

According to such a device, the operator loosens the screw 27 and moves the detection plate 28 around the central axis of the roller 3 with respect to the semicircular worm wheel 6, whereby Since the swing stop position of the paper guide device 1 in the sort mode and the non-sort mode can be adjusted, the paper guide device 1 can be easily adapted to the height of the paper outlet of the printing device.

In the above-described embodiment, a case has been described in which the paper guide unit 1 is the paper guide device 1 that can guide the print paper and convey the print paper. In this way, the printing paper discharged from the forced paper discharging device 35 as the paper discharging means can be reliably transported and guided to the mesh endless belt 12 as the paper discharging means. However, when the distance from the sheet discharging means to the conveying means is short, or when the inclination is not upward, a guide plate having no conveying function may be used.

[0035]

[Effect of the invention]

 As described above, according to the present invention, in the invention of claim 1, the collating device sucks and conveys the printed paper by the belt absorbing / conveying means and distributes it to the respective paper receiving trays. Has the advantage that it does not rub the image surface immediately after printing and does not cause image stains.

Further, since the paper is aligned and stocked in a space divergent in the vertical direction from the paper discharge port toward the paper discharge direction, the printing condition of the paper discharged to the paper discharge tray can be easily checked, and the paper can be widely printed. The space makes it easy to handle paper.

On the other hand, in the stacking mode, by setting the paper guide device to the second position, the paper guide device does not prevent the discharge of the paper. For this reason, it is possible to use the optimally designed exclusive discharge means of the printing apparatus as it is, and as a result, the discharge tray is separately provided above the collating apparatus or downstream of the collating apparatus. This eliminates the need to provide a collating device, which can reduce the height and installation space of the collating device, reduce costs, and improve transport performance.

Further, even when a large number of sheets are stacked on the paper discharge tray, the paper discharge can be prevented from occurring because the paper discharge is well aligned, and printing and discharging of thick paper can be performed. Become. On the other hand, such a collating device can be made optional, and a user who does not need it can select a printing device having only the output tray. Another advantage is that if the collating device is separated from the printing device, it can be used as a printing device as it is.

According to the second aspect of the present invention, in addition to the above, it is possible to reliably suck the sheet sent to the collating device via the sheet guiding device by the belt absorbing and conveying means.

[Submission date] February 5, 1999

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction contents]

[0010]

[Means for Solving the Problems]

In order to solve the above-mentioned problem, the present invention provides a printing apparatus main body having a discharging means for discharging printed paper outside the apparatus, and a printer which is disposed side by side on the side of the printing apparatus main body in the paper discharging direction and transported. A collating device for sequentially discharging the collected sheets to a plurality of paper receiving trays arranged in a vertical direction, and a printing apparatus main body supported between the printing apparatus main body and the collating apparatus, and Between a first position for receiving the sheet discharged from the sheet discharging means into the main body of the collating apparatus and a second position for discharging the sheet discharged from the sheet discharging means to the tray. And a paper guide device that is selectively oscillated in the stacking mode. In the stacking mode, the paper discharged from the paper discharging unit is discharged to the paper discharging tray. In the collation mode, the paper discharged from the paper discharging unit is discharged. A printing device that transports multiple sheets to a collating device The collating device is provided in a vertical direction along a plurality of paper receiving trays, and receives the paper guided by the swing of the paper guiding device to the first position and sucks the air in the vertical direction. A belt absorbing / conveying means for conveying the belt, and a vertically movable drive provided along a sheet conveying path of the belt absorbing / conveying means; and a for paper loading means that let transportable oN, the sheet guide apparatus in plan the sheet discharged from the printing apparatus main body when the first position obliquely upward toward the top of the collating device It is characterized by:

[Brief description of the drawings]

FIG. 1 is an explanatory diagram in a case where an online collating apparatus according to an embodiment is connected to a stencil type stencil printing apparatus.

FIG. 2 is a side view of the sorter of the embodiment.

FIG. 3 is an explanatory diagram of an operation panel and a control system.

FIG. 4 is a side view illustrating a path of a printing sheet.

FIG. 5 is an explanatory diagram of a drive control system of the paper guide device.

FIG. 6 is an explanatory diagram of a conventional printing apparatus and an online sorter.

FIG. 7 is an explanatory diagram of a conventional printing apparatus and an online sorter.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 paper guide device (paper guide portion) 5 worm (oscillation means) 6 worm wheel (oscillation means) 7 motor (oscillation means) 12 net-like endless belt (conveyance means) 23 paper receiving tray 35 forced paper ejection device (paper ejection means) 42 Discharge tray 100 Main body of sorter (main body of collating device) 200 CPU (control means) C 2nd position D 1st position P Path of discharged paper

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[Procedure amendment]

[Submission date] February 5, 1999

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims for utility model registration

[Correction method] Change

[Correction contents]

[Utility model registration claims]

Claims (2)

[Utility model registration claims] 1. A printing apparatus main body having discharge means for discharging printed paper out of the machine, and a paper sheet disposed side by side on the paper discharging direction side of the printing apparatus main body and transported paper in a vertical direction. A collating device for sequentially discharging the paper to a plurality of arranged paper receiving trays, and a printing device main body supported between the printing device main body and the collating device, capable of stacking the paper discharged from the paper discharging means. Paper tray selectively swung between a first position for receiving paper discharged from the paper discharge means into the collating apparatus body and a second position for discharging paper to the paper discharge tray. A guide device for discharging the paper discharged from the paper discharge means to the paper discharge tray in the stacking mode, and transporting a plurality of papers discharged from the paper discharge means to the collation device in the collation mode. In a printing apparatus, the collating device includes a plurality of collating devices. Belt absorbing and conveying means provided in the vertical direction along the sheet receiving tray, for receiving the sheet guided by the swing of the sheet guiding device to the first position, and conveying the belt while sucking the air in the vertical direction; A paper loading means is provided so as to be vertically drivable along the paper transport path of the belt absorbing and transporting means and is loaded into any of the plurality of paper receiving trays from above the belt of the belt absorbing and transporting means. The printing apparatus, wherein the paper guide device guides the paper discharged from the printing device main body at the first position diagonally upward toward the upper part of the collating device. 2. The printing apparatus according to claim 1, wherein the sheet guided to the upper part of the collating device via the sheet guiding device is urged by airflow in a direction in which the sheet contacts the belt absorbing and conveying means. A printing device characterized by the above-mentioned.