JPH102U - Printing device with collating device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To reduce the size and simplification of an online type sorter, improve the paper ejection performance in a stack mode, and enable printing of thick paper. SOLUTION: A sheet transport guide device 1 is supported from a sorter main body 100 so as to be swingable between C and D. In a stack mode, a large number of sheets are discharged onto a discharge tray 42 at a position C, and in a sort mode, D is discharged. To the paper receiving tray 23
Are sequentially discharged to The mode is selected on the operation panel of the printing apparatus.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a printing apparatus with a collating device for collating printing paper discharged from a printing apparatus main body.

[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 enables thick paper to be passed.There is no protrusion and the installation area is small and the height is small. It is an object of the present invention to provide an inexpensive printing device with a collating device having a low cost and a simple structure.

[0010]

[Means for Solving the Problems]

 In order to solve the above-mentioned problem, the present invention discharges the paper discharged from the paper discharging means of the printing apparatus main body to a discharge tray provided in the printing apparatus main body in the stacking mode, and discharges the paper in the collating mode. A collating device that conveys the paper discharged from the paper discharging means to the collating device, and sequentially discharges the paper to a plurality of paper receiving trays provided in the collating device body. A sheet guiding unit for receiving the sheet discharged from the sheet discharging unit into the body of the collating apparatus; and a sheet discharge tray for receiving the sheet discharged from the sheet discharging unit. Swinging means for selectively swinging between a second position for discharging paper to the printer and a selecting means for selecting a stacking mode or a collation mode on the operation panel of the printing apparatus main body. And the swing of the collating device Means is characterized in that to swing to the first position location of the paper guide section and the collation mode is selected, and a loading mode is selected the paper guide unit to the second position.

[0011]

Embodiment

 FIG. 1 shows a schematic structure of an on-line collating apparatus (hereinafter referred to as a "sorter") according to an embodiment of the present invention in combination with a stencil printing machine as a printing apparatus.

The printing apparatus includes a stencil 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 a 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.

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

FIG. 2 is a schematic diagram showing the structure of the online sorter of the embodiment. The sheet conveyance guide device 1 is configured to convey a sheet by an endless belt 4 stretched between a roller 2 and a roller 3. The sheet conveyance guide device 1 is moved up and down around the axis of the roller 3 from the sorter body 100. The worm 5 which is supported so as to be swingable in the direction and is engaged with a worm wheel 6 having a semicircular shape is rotated by a rotation of a motor 7 having the worm 5 attached to a tip end thereof. Has become. The worm 5, the worm wheel 6, the motor 7, and the like are examples of the swinging means.

The sorter includes, as transport means, a cylindrical hollow cylinder 10 having an opening on the outer periphery, a slave cylinder 11 provided in parallel therebelow, and a net-like endless belt 12 stretched between both cylinders. And a portion formed by projecting a part of the net-shaped endless belt 12 outwardly by using the middle guide roller 13, the lower guide roller 14 and the upper guide roller 15.

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 the figure, and the slave cylinder 11 is rotated.

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 slide 16 is slidable along the guide 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 rotatably provided 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. As shown in the drawing, an air suction force is generated to suck and transport the printing paper to the surface of the mesh belt.

A plurality of sheet receiving trays 23 are arranged in a vertical direction at regular intervals at the tip of the projecting portion of the mesh belt 12. With such a device, the printing paper conveyed by the paper conveyance guide device 1 is conveyed while being sucked onto the surface of the net-like endless belt 12, and is indicated by an arrow F in FIG. As described above, 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 mesh belt and conveyed, and distributed to each tray, the roller 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 period of time via the CPU 200 that performs overall control, and the sheet conveyance guide device 1 swings downward to the first position D shown by a solid line in FIG. All paper ejected from the printing device will be 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 swinging motor 7 of the sorter rotates again for a predetermined time, and the paper transport guide device 1 swings upward again in FIG. The printing paper discharged from the plate-making printing apparatus at the position C, which is the second position indicated by the dashed line, is all discharged and stacked on the dedicated discharge tray 42. In this case, the paper conveyance 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 discharge guide 43 on the paper discharge tray 42 is of a foldable type. When a sorter is used, the paper transport guide device 1 is swung downward so as not to obstruct the sorter. It is best to use it.

The transport speed of the paper transport guide device 1 can be set to a speed substantially equal to the paper discharge speed when the stencil printing device is printing at the highest speed. Become stable.

When printing is performed on thick paper, the sorter of this embodiment cannot perform collating work depending on the thickness. 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 of the present invention can easily cope with printing presses having different heights of the printing paper outlet from the floor. FIG. 5 is a detailed view showing an embodiment in the case where the position of the sheet transport guide device of the sorter is detected and positioned.

As described above, the worm 5 and the semicircular worm wheel 6 are engaged with each other, and the rotation of the oscillating motor 7 causes the paper conveyance guide device 1 to oscillate around the central axis of the roller 3 as shown by an arrow. It is supposed to. On the other hand, sensors 25 and 26 for detecting a swing angle are provided on a bracket 24 fixed to the sorter main body, and fixed on a semicircular worm wheel 6 by screws 27. A detection plate 28 is provided. Then, when the projection 28a of the detection plate 28 pushes the filler of the sensor 25 or 26, the angle of the sheet conveyance guide device 1 can be detected.

FIG. 5 shows the state of the sort mode, in which the projection 28 a pushes the sensor 25. However, in the non-sort mode, the motor 7 rotates and the paper conveyance guide device 1 swings upward, When the projection 28a of the detection plate 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 center axis of the roller 3 with respect to the semicircular worm wheel 6, Since the swing stop position of the paper transport guide device 1 in the sort mode and the non-sort mode can be adjusted, the paper transport 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 a paper transport guide device 1 that can guide a print paper and transport 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 paper 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.

[0034]

[Effect of the invention]

 As described above, according to the present invention, the inside of the paper sheet that is swingably supported by the body of the collating apparatus is provided, and the inside of the paper sheet is moved from the first position for receiving the paper from the paper discharging means of the printing apparatus and the path through which the paper is discharged. In the collation mode, the paper can be guided to the conveyance means of the collating device by swinging between the second position retracted upward and setting the paper guide portion to the first position in the collation mode. .

In addition, even though the paper guiding unit for guiding the paper to the discharge tray or the collating device is provided in the collating device, the selection means for selecting whether or not to use the collating device is provided. Since it is provided on the operation panel of the printing device, the operator can instruct the start of the printing operation on the operation panel of the printing device and also whether or not to use the collating device, which improves the operability of the operator. it can.

[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 sheet conveyance 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]

 DESCRIPTION OF SYMBOLS 1 Paper conveyance guide device (paper guide part) 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 Second position D First position P Path of discharged paper

Claims (1)

[Utility model registration claims] In a stacking mode, a sheet discharged from a sheet discharging means of a printing apparatus main body is discharged to a discharge tray provided in the printing apparatus main body. In a printing apparatus with a collating device for sequentially discharging paper to a plurality of paper receiving trays provided in a main body of the collating device, the collating device includes a paper guide for receiving paper discharged from the paper discharging means into the main body of the collating device. And a first position for receiving the paper discharged from the paper discharge means into the collating apparatus main body, and a second position for discharging the paper discharged from the paper discharge means to the paper discharge tray. Rocking means for selectively rocking between the printer and the printing apparatus main body, wherein a selection means for selecting a loading mode or a collation mode is provided on an operation panel, and Means collation mode is selected That the said paper guide unit first
A printing apparatus with a collating device, wherein the paper guide section is swung to the second position when the loading mode is selected.