JP3432544B2 - Punching device and paper processing device - Google Patents

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention is capable of opposing rotation.
Equipped with various punches and dies,
A punching device that punches paper by rolling it
And the scraps generated by the punching process of the punching device.
The empty scrap storage box is full of collected scraps.
The present invention relates to a sheet processing apparatus including a detection unit that detects

[0002]

2. Description of the Related Art In a conventional paper punching device in which a punch and a die rotate for punching, the die has a cylindrical shape, and punched scraps fall inside the cylinder of the die. Then, the dropped scraps are accumulated inside the die, and move around inside the die by the rotation of the die due to the next punching operation.

[0003]

For this reason, in the conventional apparatus, as the punching operation is continuously performed, most of the scraps accumulated in the die jump out from the inside of the die, but a part of the scrap remains inside the die. However, there was a problem that it was scattered in the room and did not fall into a predetermined storage place. The present invention is based on the punching process.
It is an object of the present invention to provide a punching device that surely guides a punch residue generated in a predetermined position . In addition, the present invention is a
If the storage box is not installed, it can be detected.
Yes, and its detection means is a means for detecting the fullness of the scraps.
Since it is the same as the above, no scrap residue storage box is installed
The scraps generated by the punching process are
There is no risk of scattering in the vicinity, and it can be provided at low cost.
It is an object of the present invention to provide a sheet processing apparatus that can be used.

[0004]

Above object In order to achieve the above, provided with two sets of phase opposed rotatable punch and die, the shaft fitted with the two da <br/> chair, the two pairs of punch and die In a punching device for punching a sheet by rotating a sheet, the shaft is fitted to the two dies.
Provided with a fitting hole, respectively, each of the two dice
The opening at one end of the fitting hole and expanded conically tapered guide portion and without, and one end of each fitting hole of the two dice
The opening surfaces of the openings are arranged to face each other,
Further, each taper guide portion of the two dies has a fitting hole portion into which the punch provided in the die is fitted.
Each made to communicate with the two dies by the tapered guide portion of the scrap generated by punching the two dice
This is achieved by the first means adapted to lead between the spaces . Further, the above-mentioned object has a punching device of the first means and a punched waste storage box capable of storing and recovering punched dust generated by the punching process of the punching device, and the punched waste storage box stores the collected punched wastes. This is achieved by the second means for detecting whether the scraps are full or not, and the detection means for detecting the fullness of the scraps .

[0005]

In the first means, the taper of one die is used.
The punched residue guided by the guide is the other die
To be deposited between the dies.
Therefore, there is no need to provide a large waste box in the axial direction of the shaft,
It can be made compact, and without scraps scattered
All the scraps can be easily collected. In the second step, this can be detected even when the punched waste container is not attached, and the detection means is the same as the means for detecting the fullness of the punched waste. Since it is a thing, the punching operation is not performed without the punched waste container box being mounted.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. Figure 1 is a schematic front view of the use Kamisho management apparatus according to the embodiment,
FIG. 2 is an enlarged front view of the same part, FIG. 3 is a perspective view of the paper punching device, and FIGS. 4A, 4B, and 4C show the punch and die operating processes of the paper punching device. FIG. 5 is a side view of the punch and die of the sheet punching device, and FIG. 6 is a side view of the punched waste storage box with a part thereof cut away.

In these figures, 1 is an image forming apparatus,
Reference numeral 2 is a sheet post-processing device, and 3 is a paper discharge roller on the image forming apparatus 1 side. Further, inside the sheet post-processing device 2, the switching claw 5, the transport roller 6, the sheet punching device 70, the transport roller 6, the discharge roller 7, and the bins vertically arranged in multiple stages in order from the upstream side in the sheet transport direction. 8 are arranged. In the vicinity of the upstream side of the switching claw 5, as shown in FIG.
Is provided. The sheet punching device 70 has a sheet transport surface S.
A pair of punches 701 and a pair of dies 702 are arranged so as to face each other with the punch 701 interposed therebetween. The pair of dies 702 has a hole portion 702a into which the punch 701 is fitted, and the hole portion 702a.
And a taper guide portion 702b that communicates with each other and is widened on the opposing surface side of the pair of dies 702. By this taper guide portion 702b, the punched waste 714 is surely guided to the punched waste storage box 715 located immediately below it. The die 702 and the punch 701 are shown in FIGS .
As shown in FIG. 5 , the shafts 703a and 703b are inserted into the fitting holes.
Are fitted with each other. Also, die 7
The opening of the one end of the fitting hole of No. 02 is expanded into a conical shape, and
A taper guide portion 702b is formed. And the figure
3, as shown in FIG. 5, each fitting hole of the two dies 702
The opening surfaces of the openings on one end side of the
There is. 704 is a home sensor, 706 is a drive motor, 707 is a transmission pulley, 708 is a timing belt, 709a and 709b are gears, 711 is a drive pulley, 7
Reference numeral 12 is a detection plate, 716 is a stay provided to fix the punched waste storage box 715, and 718 is a full detection sensor.

Further, as shown in FIG. 6, the fullness detection sensor 718 is provided with a stay 71 for fixing the scrap residue storage box 715.
6 is attached via a rotatable lock member 717. In FIG. 6, a position indicated by a chain double-dashed line indicates a state where the punched waste container box 715 is not mounted, and a position indicated by a solid line indicates a state where the punched waste container box 715 is mounted. Further, the scrap residue storage box 715 is provided so as to be detachable from the sheet post-processing device 2.

Next, the operation will be described. Image forming apparatus 1
The copy paper ejected from the paper ejection roller 3 is conveyed to the paper post-processing device 2. The copy sheet conveyed to the sheet post-processing device 2 passes through the entrance sensor 4, is conveyed to the distribution section by the switching claw 5, and is conveyed to the sheet punching device 70 by the conveying roller 6. Copy paper is a paper punching device 70
When a trailing edge of the copy sheet passes through the entrance sensor 4 and a certain period of time elapses, the driving motor 706 for punching operates and the driving pulley 71 attached to the driving motor 706.
1 rotates, and the transmission pulley 707 rotates via the timing belt 708. The rotation of the transmission pulley 707 depends on the rotation of the gear 70.
9a, 709b, the rotation of the gears 709a, 709b is transmitted to the shaft 70 integral with the gears 709a, 709b.
3a, 703b, a die 702 attached to the shaft 703a and a punch 70 attached to the shaft 703b.
1 rotates in the direction of the arrow in FIG. The copy sheet is conveyed between the punch 701 and the die 702 of the sheet punching device 70, and the punch 701 and the die 702 rotate (see FIG. 4).
(See (a)), hole 702a of die 702 and punch 70
When the 1s are engaged (see FIG. 4 (b)), they are perforated. After a certain period of time after the copy sheet passes through the entrance sensor 4, the punch 701 and the die 702 are rotationally engaged with each other, so that the copy sheet can be punched at a predetermined position. Further, the time from when the copy sheet passes through the entrance sensor 4 to when the punch 701 and the die 702 start to rotate can be set arbitrarily, and thereby, the punching can be performed at an arbitrary position of the copy sheet. Is possible. The copy sheet punched by the sheet punching device 70 is transported to the discharge roller 7 by the transport roller 6 and discharged to the bin 8. The punch 701 and the die 702, which have finished punching the copy sheet, rotate further (see FIG. 4C).
When the home sensor 704 detects the cutout portion 713 of the detection plate 712 attached to the gear 709b,
Both stop in place.

The above-described series of operations are performed for each copy sheet discharged from the image forming apparatus 1. Immediately after the punching punch 701 and the punch dies 702 punches out the copy sheet, the scraps 714 drop into the hole 702a of the die 702 and reach the taper guide portion 702b on the inner surface of the die 702. 702b
With this, it surely falls from the inside of the die 702 to the inside of the punched waste storage box 715 provided in the lower portion.

When the punching operation is continued by the sheet punching device 70, the punched dust 714 falls into the punched dust box 715, and when a certain amount is accumulated, the full detection sensor 718 detects this and the punched dust 714 is full. LE not shown
Notify by D.

Further, the punched waste storage box 715 is detachable from the sheet post-processing apparatus 2, and when the fullness of the punched waste 714 is detected by the fullness detection sensor 718, it is pulled out from the sheet post-processing apparatus 2 and pulled out the scraps 714. Can be processed.

The post-processing device 2 for the sheet is provided with the scrap residue box 715.
When it is further pulled out (position indicated by a chain double-dashed line), the lock member 71 rotatably attached to the stay 716.
7 rotates, and the full detection sensor 718 attached to the lock member 717 is blocked by the stay 716, so that the full detection sensor 718 is in the same state as when the empty waste is full, and the LED indicates that the empty waste storage box 715 has not been opened. Notify that you are wearing it. On the other hand, when the scrap residue storage box 715 is normally mounted (position indicated by the solid line), the lock member 717 is fixed at the regular position (position indicated by the solid line), and the full detection sensor 718 is also set at the regular position and the full state is detected. Detection sensor 718
Can detect again whether the scraps 714 are full in the scraps storage box 715 without being blocked by the stay 716. In the above-described embodiment, in the paper post-processing device that distributes the copy paper discharged from the image forming apparatus 1 onto the bins 8 arranged in multiple stages, on the front side of the bin 8,
It consists of a punch 701 and a die 702 facing each other.
A paper punching device 70 that punches each copy sheet by rotating them is provided.
Since the taper guide portion 702b for guiding the punching scrap 714 generated by the punching operation to a predetermined place is formed on the die 702, the punching scrap 714 of the copy sheet generated by the punching operation is guided by the taper guide portion 702b.
Since the drop dust 714 is surely dropped and accumulated in the predetermined storage box 715, the punch dust 714 does not scatter inside and around the sheet punching device 70, and all the punch dust 714 can be easily collected. In the above embodiment, the paper punching device 7
No. 0 has a scrap residue storage box 715 capable of accommodating and recovering the scrap waste 714. The scrap scrap storage box 715 is provided with a full detection sensor 718 for detecting the fullness of the scrap waste 714, and the full detection sensor 718. Since it also serves as a detection means for discriminating whether the punched waste storage box is mounted or not mounted, it is possible to detect this when the punched waste storage box 715 is not mounted, and the detection means is full. Since the detection means is the same as the detection means, the storage box 71
There is no possibility that the punching operation will be performed with 5 not attached to scatter the scraps inside and around the sheet punching apparatus, and the cost can be provided at low cost.

[0014]

Effects of the Invention According to the first aspect of the invention, provided with a hole for fitting the shaft respectively to two Da <br/> chairs, 2
The fitting of the One of the opening at one end of the fitting hole of the die is expanded conically tapered guide portion and without and two dies,
Arranged so that the opening surfaces of the openings on one end side of the holes face each other
And, in each taper guide part of two dies ,
The fitting hole portion punch provided in the die is fitted it
Re and communicated, two scrap resulting from punching
Since it was designed to guide between the two dies by each taper guide part of the die ,
Therefore, the scraps introduced are discharged to the other die.
Since it was designed to be deposited between the dice of each other,
Compact without the need for a large storage box in the axial direction of the shaft.
In addition, all the scraps can be easily collected without being scattered . According to the second aspect of the invention, in addition to the effect of the first aspect, it is possible to detect when the punched waste storage box is not installed, and the detection means is full of the punched waste. Since the detection means is the same as the detection means, there is no risk that the scraps generated by the perforation processing will be scattered inside the apparatus and the vicinity thereof while the punched waste box is not mounted, and the cost can be provided at low cost .

[Brief description of drawings]

FIG. 1 is a schematic front view of a sheet processing apparatus according to an embodiment of the present invention.

FIG. 2 is an enlarged front view of a main part of the sheet processing apparatus according to the embodiment of the present invention.

FIG. 3 is a perspective view of a sheet punching device of the sheet processing apparatus according to the embodiment of the present invention.

FIG. 4 is an explanatory view showing an operation process of a punch and a die of a sheet punching device.

FIG. 5 is a side view of a punch and a die of the sheet punching device.

FIG. 6 is a partially cutaway side view of the punched waste storage box.

[Explanation of symbols]

1 Image Forming Apparatus 4 Inlet Sensor 5 Switching Claw 6 Conveying Roller 8 Bin 70 Paper Punching Device 701 Punch 702 Die 702a Hole (fitting hole) 702b Tapered Guide 703a Shaft 706 Drive Motor 714 Extracted Waste 715 Extracted Waste Storage Box 718 Full Detection sensor (detection means)

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Nobuyoshi Seki 2-28-24 Izumi, Higashi-ku, Nagoya-shi, Aichi Yokota Building Ricoh Elemex Co., Ltd. (72) Inventor Mitsu Ichikawa 2-28, Izumi, Higashi-ku, Nagoya-shi, Aichi −24 Yokota Building Ricoh Electrics Co., Ltd. (72) Inventor Yuji Ueno 2-28-24 Izumi, Higashi-ku, Nagoya-shi, Aichi Prefecture (56) References Japanese Patent Laid-Open No. 4-41199 (JP, 4-41199) A) JP 60-6398 (JP, A) Actual development 62-88599 (JP, U) Actual public 32-4484 (JP, Y1) (58) Fields investigated (Int.Cl. ⁷ , DB name) ) B26F 1/00-1/46

Claims (2)

(57) [Claims] 1. A pair of opposed rotatable punches and dies, and a shaft to which the two dies are attached,
In drilling apparatus for performing a punching process on the sheet by rotating the two pairs of punch and die, said two dies it a fitting hole for fitting the shaft
Provided with which the opening at one end of the fitting holes of the two dice is enlarged conically tapered guide portion and without, or
Opening surface of one end side opening of each fitting hole of the two dies
Are arranged facing each other, and the two
Of each tapered guide portion of the die, said punch provided on the die is allowed to communicate respectively communicating the insertion hole portion for fitting, the scrap generated by the punching of the two dies
A punching device, characterized in that it is guided between two dies by each taper guide portion of the punch. 2. The punching device according to claim 1, and a punched waste storage box capable of storing and recovering punched dust generated by the punching process of the punching device, and the punched waste storage box has a punched waste collected therein. A sheet processing apparatus, comprising: a detection unit for detecting the fullness of waste, and detecting whether the waste waste storage box is mounted or not mounted by the detection unit.