DE19817902A1 - Method of strengthening the filing hole edges of paper or light cardboard sheets - Google Patents

Abstract

The method involves transporting the paper (46) or cardboard through an associated arrangement and applying the strengthening ring (4.1) and punching the hole for each hole during the same operating step. The paper or cardboard is moved stepwise to the punch, a strip (4) of strengthening rings is positioned, a ring is punched out and stuck onto the paper or cardboard, the hole is punched and the tool returns to its starting position. The paper or cardboard is transported out of the arrangement An Independent claim is also included for an arrangement for implementing the method.

Description

The invention relates to methods and a device for copiers and printers, preferably PC Printers as well as for fax machines or for a separate office device to reinforce the binding hole edges the sticking of self-adhesive reinforcement rings and for punching the tack holes in paper or light Cardboard sheets.

The separate punching of stitching holes in sheets of paper by means of a hand punch is well known and the subsequent reinforcement of these holes by manually sticking on reinforcement rings. DE OS 38 14 000 also provides a device for applying a reinforcing ring to the Edge area of a stitching hole proposed that like a hand punch from a base part and a there is a pivotable, spring-loaded handle. There is a pressure sensitive adhesive in the handle occupied band of reinforcement rings housed. The coated tape is delivered when pressing down the handle by a knob with a transport wheel, which in the holes of the Insert reinforcement rings and bring the first reinforcement ring into the adhesive position. For Generating the feed, the transport wheel is assigned a reel, which is located on the base part a pawl supports. The positioned reinforcement ring becomes one-sided when pressed down cut off and with its adhesive surface pressed on the attached document and glued.

Also known is a manual booster punch (skre-loma booster punch from skrebba) in which a paper strip (similar to a reinforcement ring plaster) is stuck around the hole before the hole is punched and the document is punched. A disadvantage must be considered that a paper reinforcement roll is required for each punch. For a machine system with the need for a variable determination of the number of holes, this solution is disadvantageously complex
Perforating devices for the endless perforation of paper tapes in printers of computer systems are also known, which are very complicated and complex in terms of their technical equipment. They are not suitable as office equipment of the type mentioned above. There are also suggestions, such as according to DE OS 195 33 879, where a continuous hole reinforcement strip with punched holes is applied to reinforce the existing stitching holes. The use of this method requires a great deal of mechanical engineering work with regard to the exact paper and punched tape guidance when the reinforcement strips are stuck on, but this is not industrially suitable for an office device.

Also known are copying machines that are used to provide different paper qualities and Formats have multiple paper trays. These cassettes can also be single or quadruple punched paper and retrieved as needed. The construction effort this multiple cassette is considerable and is not transferable to simple tabletop devices. Is expensive also the necessary stocking with different punched paper.

Also known is a copying device from Minolta (see brochure EP 4050) with one coupled Sorter (ST-206) equipped with a punching and stapling device. Here are the created Copies after delivery to the sorter and if specified via the input display of the copier in Landscape format perforated in pairs. This system is programmed for easy manufacturing Hole pairs are an advantage. However, for freely selectable hole pair spacing (double and quadruple perforation) an additional effort for further punching tools.

The invention aims to punch holes in a simple device regardless of the number of holes in paper sheets or light cardboard boxes with simultaneous reinforcement enable the edges of the stitching holes to be made in one operation using reinforcement rings. The With little technical effort, the device should offer great flexibility in specifying the pair of holes own art and thus limit and simplify the workload in the office. The facility to be coupled with other paper-processing office equipment or to be inserted as a single component or can also be used as an independent, independent, space-saving office device.

The object of the invention provides a method and a device for gluing Reinforcement rings towards the stitch hole edges and for punching out the stitch holes in one operation create. For the reinforcement of the hole edges are tear-resistant self-adhesive reinforcement rings provided that are to be punched out of a film strip. The facility is intended for copiers,  Printers, preferably PC printers, and can be installed for fax machines or as an attachment or separate Office equipment to be executable.

The features of the invention for realizing this task are in Protection claim and its subclaims summarized.

According to the method, the relevant one is used to reinforce the edge of the hole and to punch the stitching hole Paper or light cardboard sheets using longitudinal means of transport through the proposed Device transported and with each stitch hole the reinforcement of the intended stitch hole edge with a reinforcement ring and punching the tack hole in the same work cycle. The in the facility introduced paper or light cardboard sheets is accordingly with the each tack hole area in front of a punch and a self-adhesive in front of it Reinforcement film positioned. Then the free between the punch and the Perforated plate tensioned reinforcement film with a ring knife punched out a reinforcement ring and pressed onto the paper or light cardboard sheet with an ejector and glued. Subsequently, while maintaining the hold-down tension of the ejector with the same one Lifting axis guided hole punch the stitch hole through the reinforcement ring and the paper or light Cardboard sheet punched. Then the punching tool is in its starting position returned and the reinforcement film from a stepper motor coupled to the empty coil adjusted. After step-by-step reinforcement and punching all the stitching holes, the processed paper or light cardboard sheets are transported out of the device.

The device comprises a cassette for receiving a non-perforated film-like self-adhesive reinforcement film and a tool for sticking on the reinforcement rings and Punch out the stitching holes. For transporting, guiding and positioning the holes to be punched On paper sheets, the facility is equipped with appropriate transport rollers and control sensors.

In a closed cassette, the reinforcement film carried by a film reel is placed over Deflection rollers led to an empty spool. The adhesive layer of the reinforcing film is before Punching tool directed outwards and is clamped in front of a perforated plate without contact. In the Perforated plate is the punch hole for punching out the reinforcement ring. The tool (hereinafter called punching tool) for punching out the reinforcement ring and the stitching holes as well for gluing the reinforcement rings consists of a guide cylinder in which a limited stroke Ring knife and a perforated mandrel, which is also guided, is mounted telescopically. The piercing pin bears an axially movably mounted and spring-loaded ejector. In the starting position the contact surface of the ejector is in front of the cutting edge of the punch. With the ring knife the reinforcement ring is first punched out of the reinforcement film. From the ejector punched out reinforcement ring from the ring knife and then on the paper sheet increasing contact pressure pressed and glued. The punch then punches the staple hole in the reinforcement ring and the paper sheet.

The idle coil with a stepper motor is used for the intermittent feed of the reinforcement film coupled. The working stroke for the ring knife and the piercing mandrel is controlled by a rocker arm Camshaft drive introduced. According to the given work sequence of the Punching tool, the working stroke is controlled by cams offset by rotation angle.

The rocker arm drive for the ring knife and punch can be separated or in a kinematic Coupling. In the case of a kinematically coupled functional unit, the working stroke for the Complete punching tool only realized via a rocker arm drive. This rocker arm is with the Piercing pin mechanically coupled directly. The kinematic coupling between the piercing mandrel and the Ring knife is made by a spring element (ring knife spring). The one brought in by the rocker arm The working stroke is simultaneously transferred from the punch to the ring knife via the spring element. The The spring tension of this spring element is greater than that for punching out the reinforcement ring required cutting force set. This ensures that the punch with its ejector only takes action after reaching the ring knife stop. The return stroke for the punch and the ring knife is replaced by a second one between the punch and guide cylinder arranged spring element (return spring) causes.

Instead of a camshaft drive, an electromagnet or Pneumatic / hydraulic servomotor can be provided, either with the rocker arms for the Ring knife and the perforated bolt are coupled or with a direct rocker arm-free individual drive  are directly connected to the punch. The kinematic coupling with the ring knife takes place as described above, by a spring element. This type of drive eliminates the otherwise required Return spring.

For an exact transport of the paper sheets, especially for fixing the edge of the stitching hole the cassette on the punch side has a U-shaped guide rail with the punch hole for the punch. Depending on the installation conditions, the guide rail can be installed rotated around the hole axis. Below the guide rail is the waste chamber or a removable container for the Stitch hole residues provided.

According to the invention, the device is an independent functional unit with a conveyor designed for longitudinal paper feed. It includes the cassette described above and as Carrying and transport device a flat bed housing with a paper feed shaft with transverse to Conveyor rollers arranged in the paper transport direction. The top side of the flatbed housing is preferably designed as a storage surface for paper ejection. The paper feed chute is for this purpose deflected to the deck side by 180 degrees. The cassette with the punching tool Before the chute emerges, tack holes and sticking on the reinforcement rings are all in one Side part of the flatbed housing used interchangeably. In the side part are the Drive elements for the punching tool and the empty coil housed. The kinematic coupling takes place via simple plug-in couplings. On the other hand, the drive can also be installed directly in the cassette be housed. Such an arrangement lends itself when the cassette as a single assembly in existing devices should be taken over. For example, the transport and positioning means of the copier, printer equipment (PC printer) or the fax machine. Also for both sides The cassette can be used to perforate and reinforce the perforated edge of continuous paper.

The control of the paper feed and the positioning of the individual for punching the staple holes continuous sheets of paper and the setting of the stitching hole sequence (hole spacing and number of holes per Binding margin) is done by sensors positioned in the paper feed chute. Control the sensors in connection with a microprocessor the drive motors for the conveyor rollers and that Stamping tool coordinated according to the workflow.

The coupling of the flatbed housing with a copier, printer (PC printer) or a fax machine takes place on the entry side of the paper feed chute opposite the paper exit of the respective Office equipment. Is at the same time a separate use of the device for punching out holes and provided for gluing the reinforcement rings of single sheets, the flatbed housing is one assigned additional paper input cassette on which the flatbed housing is positioned. The The input cassette is also equipped with a conveyor roller and a paper hold-down device Paper loading slot equipped. There is a transfer shaft tangential to the conveyor roller corresponds to a take-up shaft arranged in the bottom of the flat bed housing. Of the Take-over shaft opens in front of the first transport roller in the paper feed shaft. Through a sensor in the paper insertion slot, the complete set-up is inserted into the individual paper sheets Operation set.

Regardless of the paper input cassette described above, it is of course also possible Flatbed housing with cassette can also be used as an independent office table device.

In one embodiment, the device according to the invention should be constructive Basic structure can be clarified again. Show it:

Fig. 1 shows a cartridge with means for adhering of reinforcement rings and punching binding holes in the paper or light Kartonagebögen in side view,

Fig. 2 c shows the schematic functional sequence in piercing and reinforcing the stitching holes in the operating positions a, b and,

Fig. 3, the rocker arm actuation for the ring knife and the punch

• a) in side view
• b) in top view,

Fig. 4 is a spring supporting common actuation mechanism for the piercer and the ring diameter,

Fig. 5 is a flat-bed housing with cassette and a paper input tray,

Fig. 6 is a lever operating mechanism with an electromagnet,

Fig. 7 shows the direct drive of the punch by an electromagnet,

Fig. 8 The basic scheme of the cassette with an angle rocker arm drive.

In the cassette 1 according to FIG. 1, the interchangeable film spool 2 with the self-adhesive, non-perforated reinforcing film 4 (over-emphasized for better recognition) is mounted on the right-hand side. The empty coil 3 is arranged to the left of the punching tool. To advance the reinforcing film 4 , the shaft of the empty coil 3 is operatively connected to a stepper motor 40 via a transfer case 42 . The mechanical drive for the punching tool takes place by means of the camshaft 26 , which is kinematically coupled to the stepping motor 40 via the transfer case 44 . The reinforcing film 4 is guided over the two deflection and guide rollers 5 and 6 with a slight pretension. The adhesive layer of the reinforcing film 4 faces outward toward the paper sheet 46 . In order to avoid surface contact with the perforated plate 7 , the reinforcing film 4 is stretched at a distance from the perforated plate 7 . The punching tool for punching the tack holes and for gluing the reinforcing rings 4.1 is also arranged without direct contact over the tensioned reinforcing film 4 between the film spool 2 and the empty spool 3 . This tool consists of the guide cylinder 20 in which a ring knife 15 for punching out the reinforcement rings 4.1 and a piercing pin 10 with spring-supported ejector 11 for punching the stitching holes and sticking the reinforcement rings 4.1 are supported in a liftable manner. The stroke between the ring blade 15 and the guide cylinder 20 is limited by the abutment 17 on the jacket of the ring blade 15 and the stop 21 on the guide cylinder 20th The axially guided ejector 11 is mounted on the punch 10 . The ejector 11 is supported via the ejector spring 19 on the spring plate 12 , which is firmly connected to the piercing pin 10 . The return stroke of the piercing mandrel 10 in the ring knife 15 is limited by the abutment 17.1 or by an upper end collar on the ring knife 15 . The ejector spring 19 is fixedly connected to the spring plate 12 and the ejector 11 to reset the ejector 11 . The ring knife 15 and the punch 10 are actuated by the rocker arms 23 and 24 via the ring bearings 13 and 14 . They are driven by the camshaft 26 by the cam tracks 26.1 and 26.2 offset by the angle of rotation in accordance with the work sequence. The ring bearing 14 is welded, soldered or screwed directly to the spring plate 12 . The ring bearing 13 is fastened to the ring knife 15 via the longitudinal gap 16 by the bearing bracket 18 . The longitudinal gap 16 enables the rocker arm 24 to be guided freely relative to the ring knife 15 . The longitudinal gap 22 in the guide cylinder 20 serves the same purpose for the rocker arms 23 and 24 . The ring bearing 14 is fastened on the spring plate 12 of the punch 10 .

The basic principle of the rocker arm drive is shown in a side view in FIG. 3a and in a top view in FIG. 3b. A further passage gap is provided in the rear wall of the cassette for the rocker arms 23 and 24 . (Not shown in the illustrations for a better overview.) This gap is covered with a flexible sleeve (rubber or bristles). The rocker arms 23 and 24 are supported on the rocker arm shaft 25 . The rotational angle offset of the cam tracks 26.1 and 26.2 corresponds proportionally to the function-related working stroke of the ring knife 15 and the piercing mandrel 10 . The rocker arms 23 and 24 , the punch 10 and the ring knife 15 are reset by the compression spring 27 .

As the diagram of Fig. 1 further shows, the cassette 1 is arranged a guide rail 8 for the paper sheet 46 in front of the perforated plate 7 at the outer side. It fixes the standardized binding margin width of the paper sheet 46 to be punched. The punch hole 9 for the punch mandrel 10 is located in the groove 8.1 on the paper support side. The guide rail 8 itself is releasably attached to the cassette 1 . This fastening offers the possibility of carrying out the installation of the cassette 1 in a carrier device in a space-saving manner regardless of the transport direction of the paper feed. The cassette 1 can thus be installed rotated by 90, 180 or 270 degrees with respect to the hole axis.

FIGS. 2a to 2c shows the essential steps for punching out the reinforcing rings and 4.1 to punch the punched holes in the paper sheet 46 and the adhesive bonding of the reinforcement ring 4.1 on the paper sheet 46. According to FIG. 2a, the entire punching tool is at rest. In this position, the ring knife 15 and the punch 10 with the ejector 19 are completely retracted in the guide cylinder 20 . The spring plate 12 with the punch 10 lies against the abutment 17.1 and the contact surface of the ejector 19 lies directly in front of the cutting edge of the punch 10 . The reinforcing film 4 is non-contact and is stretched parallel to the perforated plate 7 in front of the punch.

FIG. 2b shows the position of the ring blade 15 after punching of a reinforcing ring 4.1 on the reinforcing foil 4. The working stroke for the ring knife 15 was carried out by the rocker arm 23 . The piercing pin 10 with the ejector 11 were carried along by the abutment 17.1 without any change in position relative to the ring knife 15 . The ejector spring 19 remains untensioned. During the lifting movement of the ring knife 15 , the reinforcing film 4 is pressed by the ring knife 15 together with the ejector 19 against the perforated plate 7 and the reinforcing ring 4.1 is punched out of the reinforcing film 4 as the lifting movement progresses. After punching out, the stretched reinforcing film 4 springs back into its transport plane. When the stop 21 on the guide cylinder 20 is reached by the abutment 17 , the punching process for punching out the reinforcing ring 4.1 is completed. In this phase, the sheet of paper 46 is not yet reached in the groove 8.1 of the guide rails 8 by the ring knife 15 and the punch 10 with ejector 11 and the punched-out reinforcing ring 4.1 . After completion of the working stroke of the ring knife 15 , the punch 10 comes into action with the ejector 11 . Through the rocker arm 24 in the ring bearing 14 , the piercing pin 10 is extended with the ejector 11 from the ring knife 12 . The punched-out reinforcement ring 4 is formed by the ejector 19 . run pressed the paper sheet 46 and both pressed against the underside of the groove 8.1 in the guide rail 8 . The punch 10 then, in engagement with the punch hole 9, punches the stitching hole into the reinforcing ring 4.1 and the paper sheet 46 . Due to the increasing spring tension of the ejector spring 19 , the reinforcing ring 4.1 is pressed firmly onto the edge of the stitching hole of the sheet of paper 46 and is securely glued. The ejector 11 at the same time prevents the paper sheet 46 from slipping or shifting in the groove 8.1 as a hold-down device. After completing this working stroke, the piercing pin 10 is reset with the ejector 11 from the rocker arm 24 into the ring knife 15 until the spring plate 12 stops on the abutment 17.1 . At the same time, the ring knife 15 is moved back from the rocker arm 23 into the guide cylinder 20 into the starting position (rest position). After the reinforcing film 4 has been released by the ring knife 15 , the empty spool 3 winds up the remaining rest of the reinforcing film 4 and pulls a new, unused section of the reinforcing film 4 in front of the perforated plate 7 and the punching tool without contact. This means that the device is ready to work for the next punching process and reinforcement of the stitching hole edges.

Fig. 4 shows the principle of constructive design of a coupled drive between the ring diameter hole 15 and mandrel 10. The kinematic coupling is carried out by a ring knife spring 29 and return spring 30 . The ring knife spring 29 is clamped between the ring knife 15 and a second spring plate 28 flanged to the mandrel 10 . The return spring 30 , which is larger in diameter than the ring knife spring 29, is supported on the guide cylinder 20 and on the spring plate 28 . On the spring plate 28 , the ring bearing 14.1 for the rocker arm 24 is attached. Instead of this drive concept with the rocker arm 24 , a stroke servomotor, preferably an e-magnet 47 , as shown in FIG. 7, can also be coupled directly to the spring plate 28 . The working stroke is introduced by the rocker arm 24 or the electromagnet 47 directly onto the upper bearing plate 28 of the piercing mandrel 10 . This moves with the punch 10 towards the perforated plate 7 . At the same time, the lifting movement is transmitted to the ring knife 15 by the ring knife spring 29 . The ring knife 15 is thus moved out of the guide cylinder 20 together with the piercing mandrel 10 and punches the reinforcing ring 4.1 out of the reinforcing film 4 . In order to prevent the mandrel 10 from advancing when the reinforcing ring 4.1 is punched out, the spring tension of the ring knife spring 29 is greater than the spring tension of the ejector spring 19 for the ejector 12 and the return spring 30 . The working stroke of the ring knife 15 ends at the stop 21 . The punch 10 then continues the working stroke with the ejector 12 . The punched-out reinforcement ring 4.1 is pushed out of the ring knife 15 by the ejector 12 and pressed against the paper sheet 46 with increasing contact pressure and perforated with the paper sheet 46 . Then the rocker arm 24 is released by the cam drive and the tensioned return spring 30 causes the perforated dome 10 to move back into the ring knife 15 to the abutment 17.1 . At the same time, the ring knife 15 is returned to its starting position in the guide cylinder 20 . As already described above, the reinforcing film 4 is then re-fed by the empty coil 3 with the stepper motor 40 .

According to the exemplary embodiment, the cassette 1 , as shown in FIG. 5, is stationed on the flat bed housing 31 in a side part 32 . In the flat bed body 31 itself transport rollers 34 and 35, the controls are for the function according to the paper transport (sensor 43.1 - 43.4) and in the housing side part 32 of the mechanical drive for the cassette l, consisting of the step motor 40, transfer gear 42 and quick-release couplings 41 housed. The paper feed duct 33 penetrates the flat bed housing 31 in the longitudinal axis. For an unhindered transfer paper from an upstream office device (PC printer, copier, fax machine) of the slot entrance is flared 33.1. The chute exit 33.2 is located on the top of the flat bed housing 31 opposite to the conveying direction of the paper sheets. In front of the chute exit 33.2 , the cassette 1 is positioned transversely to the paper transport. The guide rail 8 engages in the paper feed chute 33 and closes with the groove 8.1 flush with the edge of the paper feed chute 33 . The power transmission to the camshaft 26 and the empty coil 3 takes place via the transfer case 42 and plug-in couplings 41 . Below the paper threading shaft 33 and the punch 9 in the guide rail 8 is the waste chamber 44 for the hole residues.

A transport roller 34 for the paper feed and a second transport roller 35 are arranged in the paper feed chute 33 behind the chute inlet 33.1 and in front of the chute outlet 33.2 . Both rollers run synchronously during operation and ensure that the paper is drawn through evenly. 33 sensors 43.1 to 43.4 are positioned in the paper feed shaft for their control and for the function control of the punching tool. The transport rollers 34 and 35 are put into operation via the control contact from the sensor 43.1 . The sensors 43.2 and 43.3 control the feed for positioning the paper sheet 46 for sticking on the reinforcing rings 4.1 and punching the stitching holes in accordance with the hole command (number of holes), in cooperation with a microcomputer and in operative contact with the paper sheet edge which is guided past, and releases the sticking and punching after the positioning out. The perforation is done separately for each stitching hole. After completing these steps, the finished paper sheet 46 is conveyed out of the paper feed shaft 33 through the transport roller 35 on the top of the flat bed housing 31 . When the last paper edge of the paper sheet 46 is detected, the device 43.4 switches off the device.

A separate input cassette 37 is assigned to the flatbed housing 31 for the perforation and reinforcement of the stitching holes in individual sheets of paper or light cardboard. A transport roller 38 is also arranged in the rear part of the insertion shaft 37.1 . A hold-down device 45 ensures a crease-free paper feed to the transport roller 38 in the insertion shaft 37.1 . In the area of action of this transport roller 33 , an upwardly directed transfer shaft 39 for the paper transport connects tangentially. Congruent to this transfer shaft 39 is a take-up shaft 36 in the bottom of the flat-bed housing 31 , which opens in front of the transport roller 34 in the conveying direction of the paper flow in the paper feed-through shaft 33 . Via a contact sensor 43 . 5 in insertion slot 37.1 , the device complex is started up when paper is inserted. All other functional sequences then take place as described and are taken over by the control in the flat bed housing 31 .

With Figs. 6, 7 and 8, the drive alternatives described above for the punching tool are shown schematically.

Fig. 6 shows a rocker arm drive with an electromagnet 47 as a servomotor. The tie rod 48 of the electromagnet 47 is struck in front of the rocker arm shaft 25 with the fork holder 49 on the rocker arm 24 . The lever torque can be varied via the constructive choice of the distance between rocker arm shaft 25 and fork bracket 49 , and the drive power can thus be optimized.

In the example according to FIG. 7, the electromagnet 47 is coupled with its tie rod 48 directly to the piercing pin 10 . This solution enables a very compact drive.

In FIG. 8, a lever operating mechanism is shown with an angled 90 degrees rocker arm. This variant allows a further optimization of the structural dimensions with a mechanical drive concept and a special adjustment of the drive power via the lever torque as in FIG. 6. This drive is particularly suitable for an autonomous cassette use in existing office machine systems.

Reference list

1

cassette

2nd

Foil spool

3rd

Empty coil

4th

Reinforcement film

4.1

Reinforcement ring

5

Leadership role

6

Leadership role

7

Perforated plate

8th

Guide rail

8.1

Guide groove

9

Punch hole

10th

Lochdom

11

Ejector

12th

Spring plate

13

Ring bearing

14

Ring bearing

14.1

Ring bearing

15

Ring knife

16

Longitudinal gap

17th

Abutment

17.1

Abutment

18th

Bearing bracket

19th

Ejector spring

20th

Guide cylinder

21

attack

22

Longitudinal gap

23

rocker arm

24th

rocker arm

24.1

rocker arm

25th

Rocker arm shaft

26

camshaft

26.1

Cam track

26.2

Cam track

27

Compression spring

28

Spring plate

28.1

Spring plate

29

Ring knife spring

30th

Return spring

31

Flatbed housing

32

Side panel

33

Paper feed chute

33.1

Shaft entry

33.2

Exit

34

Transport roller

35

Transport roller

36

Take-over shaft

37

Input cassette

37.1

Insertion slot

38

Transport roller

39

Transfer shaft

40

Stepper motor

41

Plug-in coupling

42

Transfer case

43

Sensor (

43.1-43.5

)

44

Waste chamber

45

Hold-down

46

Sheets of paper

47

Electromagnet

48

Tie rod

49

Fork bracket

Claims (13)

1. A method for punching stitch holes in paper or light cardboard sheets and reinforcing the stitch hole edges by sticking self-adhesive reinforcement rings, in particular for use in copiers, printers, preferably PC printers and in fax machines or a separate office device, characterized in that for reinforcing the The edge of the hole and for punching the stitching hole the paper or light cardboard sheet in question is transported through a device by means of longitudinal transport means and for each stitching hole the intended stitching hole edge is reinforced by a reinforcement ring and the stitching hole is punched in the same working cycle by using the paper or light cardboard sheet is positioned step by step with the respective stitch hole area in front of a punching tool and a tape in front of it of a self-adhesive reinforcing film, from which a reinforcing ring is then punched out with a ring knife and with egg nem ejector is pressed onto the paper or light cardboard sheet and glued and the hole is then punched through the reinforcement ring and the paper or light cardboard sheet while maintaining a hold-down tension of the ejector with a perforated mandrel guided in the same stroke axis, and then the punching tool is returned to its starting position returned and the tape of the reinforcing film is adjusted by a stepper motor coupled to the empty spool and the finished paper or light cardboard sheet is transported out of the device. 2. Device for performing the method according to claim 1, in particular for using the device as an attachment or built-in device for copying and / or printing devices, preferably for PC printers or for fax machines and as a separate office device, characterized in that the device is a cassette ( 1 ) a film-like guide ( 5 , 6 ) for the reinforcing film ( 4 ) and means for its cyclical feed, preferably a stepper motor ( 40 ) and a tool for punching out the reinforcing rings ( 4.1 ) from the reinforcing film ( 4 ) and the stitching holes the reinforcing rings ( 4.1 ) and the paper sheet ( 46 ) or light cardboard and for gluing the reinforcing rings ( 4.1 ) onto the hole edge of the stitching holes in the paper sheet ( 46 ) or the light cardboard, by the tool comprising a ring knife ( 15 ), a piercing mandrel ( 10 ) with a sprung axially guided ejector ( 11 ) and a fixed guide cylinder ( 20 ) consists of telescoping that the ring knife ( 15 ) and the piercing mandrel ( 10 ) is operatively connected to a lifting drive, that the cassette ( 1 ) has a guide rail ( 8 ) which can be rotated about the perforated axis and has the punched hole ( 9 ) for the piercing mandrel ( 10 ) carries and that the device, in particular for receiving the cassette ( 1 ) is assigned a device carrier with means for longitudinal paper transport and for positioning the paper or light cardboard sheets for punching the staple holes. 3. Device according to claim 2, characterized in that a flat-bed housing ( 31 ) with a paper feed shaft ( 33 ) is provided as the device carrier, in which transport rollers ( 34 ; 35 ) are arranged on the inlet and outlet side and a cassette holder is present in which engages the cassette ( 1 ) with its guide rail ( 8 ) and groove ( 8.1 ) flush in the paper feed duct ( 33 ), the sensors ( 43.1 ; 43.4 ) in the paper feed duct ( 33 ) for starting up and shutting down the device and for the cyclical positioning of the The hole spacing of the paper sheets ( 46 ) or the light cardboard and position-determining sensors ( 43.2 and 43.3 ) for controlling the punching tool are arranged. 4. Device according to claim 2, characterized in that for guiding the self-adhesive reinforcing film ( 4 ) within the cassette ( 1 ) a film spool ( 2 ), an empty spool ( 3 ) and guide rollers ( 5 , 6 ) and a perforated plate ( 7 ) are present, and that the punching tool ( 10 , 11 , 15 , 20 ) is arranged perpendicular to the perforated plate ( 7 ) behind the guide plane of the reinforcing film ( 4 ) and that the guide plane for the reinforcing film ( 4 ) is parallel and contact-free in front of the perforated plate ( 7 ) runs and in this plane the reinforcing film ( 4 ) with its adhesive layer is aligned with the perforated plate ( 7 ). 5. Device according to claim 2 and 3, characterized in that for a single sheet input the flat bed housing ( 31 ) is assigned a separate paper input cassette ( 37 ) via a paper insertion slot ( 37.1 ) with at least one transport roller ( 38 ) and a sensor ( 43.5 ) has to start operating the device and to the transport roller (38) has a transfer shaft (39) is provided tangentially to the associated alignment in the platen housing (31) to the paper pulling shaft (33) leading and einmündender front of the first transport roller (34) a removal eight (36) . 6. Device according to claim 2 and 4, characterized in that as a lifting mechanism for the punching tool ( 10 , 11 , 15 ) a rocker arm camshaft gear ( 23 , 24 , 25 , 26 ) or a rocker arm electromagnetic drive ( 24 , 47 , 48 , 49 ) or a pneumatically or hydraulically acting servomotor or directly with the perforated mandrel ( 10 ) or ring knife ( 15 ) electromagnetic, pneumatic or hydraulic acting lifting means are provided and that the rocker arm camshaft drive ( 23 , 24 , 25 , 26 ) via a transfer case ( 42 ) by the stepper motor ( 40 ) for the empty coil ( 3 ). 7. Device according to claim 2, 4 and 6, characterized in that the one or more rocker arms ( 23 ; 24 ) for reducing the overall depth of the cassette ( 1 ) or for a separate cassette drive is designed as an angle rocker arm ( 24.1 ) and that Accordingly, the rocker arm shaft ( 26 ) forms a structural unit with the bearing shaft for the film reel ( 2 ). 8. Device according to claim 2 and 4, characterized in that the ejector ( 11 ) is axially movably mounted on the piercing mandrel ( 10 ) and against it by an ejector spring ( 19 ) on a spring plate ( 12 ) connected to the piercing mandrel ( 10 ) ) and the ejector ( 11 ) is in the starting position with its free side in front of the cutting edge of the punch ( 10 ) and is supported in this position on an abutment ( 17.1 ) in the ring knife ( 15 ) or directly at the upper end of the ring knife. 9. Device according to claim 2, 3 and 6, characterized in that the mechanical drive for the ring knife ( 15 ) and the piercing mandrel ( 10 ) with ejector ( 12 ) and the drive for the empty spool ( 3 ) in the flat bed housing ( 31 ), is preferably arranged in a vertical side part ( 32 ) and the kinematic connection takes place via plug-in couplings ( 41 ). 10. The device according to claim 2, 4, 6 and 7, that the drive for the punching tool ( 10 , 15 ) and the empty spool ( 3 ) is arranged in the cassette ( 1 ). 11. The device according to claim 2, characterized in that is arranged for limiting the travel between the guide cylinder (20) and the ring blade (15), an abutment (17 / 2-1). 12. The device according to claim 2, 6 and 7, characterized in that the piercing mandrel ( 10 ) and the ring knife ( 15 ) are kinematically coupled by a force-transmitting spring element ( 29 ) and the lifting drive via the piercing mandrel ( 10 ) takes place by the piercing mandrel ( 10 ) for the spring element ( 29 ) carries a spring plate ( 28.1 ), and the force-transmitting spring element ( 29 ) is arranged between this spring plate ( 28.1 ) and the ring knife ( 15 ). 13. The device according to claim 2, 6, 7 and 12, characterized in that a return spring ( 30 ) is arranged between the punch ( 10 ), in particular the spring plate ( 28.1 ) and the guide cylinder ( 20 ) in a rocker arm drive.