DE2524606A1 - DEVICE FOR PROCESSING CONTINUOUS FORMS - Google Patents

Description

252460b

Patent Attorneys Dipl.-Inc. F.% ickmann,

Dipl.-Ing. H. Weickmann, Dipl.-Phys. Dr. K. Fincke Dipl.-Ing. F. A. Weickmann, Dipl.-Chem. B. Huber

8 MUNICH 86, DILTIA POSTBOX 860 820

MÖHLSTRASSE 22, NUMBER 48 39 21/22

UAEGO INGOEPOHATED, West County Line Eoad, Barrington,

Illinois, V.St.A.

Device for processing continuous forms

The invention relates to a device for processing continuous forms, which has a drive and trimming device having. Examples of the prior art are the US patents 3,039,345; 3 056 324 and 3 185 009.

Rising labor costs and other factors have resulted in a large increase in the use of continuous forms, the continuous form from a long web lying one on top of the other There are layers of paper with copying material inserted between them, such as sheets of carbon paper or carbon fields. Cross-running weakening lines limit the individual form lengths in the continuous form.

In the use of such forms, after the desired information is written thereon, various automatic Functions performed. A typical such function is paging apart the different ones making up the form Layers are separated from each other and the carbonless paper, if such is used, from the layers of the form is separated

Another typical function is the tear-off, in which the continuous form along the transverse weakening lines in

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individual form lengths is divided.

Various operations, including pre-peeling and tearing writing, depend on the accuracy of a forced movement of the continuous form β by a device such as a printer, which must be done in such a way that the registration accuracy of the layers forming the form is maintained. To such a one In order to achieve positive drive and registration, the continuous form is often along its one or both Provided the longitudinal edges with a control hole. In many cases it is very desirable to use the control holes Eliminate marginal strips at one point in the further processing of the form. That is why many are currently in use Devices for leafing apart and tearing off with a cutting device for cutting off the perforated Margin strips from the form as it unfolds or tearing off.

Such trimmers typically have Means to render them ineffective when processing forms that involve cutting off the punched hand strip is either unnecessary or undesirable. These devices generally follow the guidelines of those outlined above US-PS'n. Another typical apparatus is a trimmer with motor drive with two trimming devices on both sides of the web of the continuous form by a device, such as one for leafing apart or tearing off, are arranged. In such an apparatus, the trimming devices are typically stowed with guide means coupled. If trimming is not necessary, the trimming devices can be moved into one layer spaced far enough to allow the continuous form to cycle between them. this however, excludes the use of a sprocket transport for office supplies. There is therefore a need for a motor cutter in which the cutter is rendered ineffective

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can be without the sprocket for the form incapacitated. In addition, it is highly desirable to take precautions against breaking away in such an apparatus of the edge to provide maximum flexibility.

The invention is based on the object of providing a new, improved device for processing continuous forms, which is provided with trimming devices. These should be comfortable and reliable between a work position and be convertible to a rest position. In addition, the position of the two cutting devices on both sides of the path of the Continuous form can be changed independently of each other, so the setting can be made as efficiently as possible before processing the forms.

The way in which the invention achieves this aim emerges from the characterizing part of the first claim.

In one embodiment of the invention, a device, such as one for tearing off or leafing apart, provided which has a structure which forms a path of the continuous form through the apparatus and means has to advance the continuous form on this path through the device. The device is provided with means to to trim the opposite longitudinal edges of the continuous form, there are two pruners, one on each side of the path. Every trimmer is like this supported so that it can be moved independently to and from the other device, so that the position of the trimming devices to the sides of the path for different widths of the form is individually and selectively adjustable. Two individually and selectively operable reversing motors, one for each trimmer, are provided to drive the associated Adjust trimming device relative to the relevant side of the path and move independently. The drive

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of the device for moving the continuous form preferably comprises two transport units, one in each trimming device. Each Besohneideeinrichtung also has at least one knife and is provided with means to the To adjust the distance between the transport unit and the knife by hand, so that the width of the edge strip to be cut is conveniently adjustable.

In one embodiment of the invention, each trimming device has two rotating knives, which are practically circumferentially in contact with each other, so that they have a cutting mouth form if the edges of the forms to be processed are to be cut off. The knives in every trimming device are mutually axially and radially movable so that they can be separated from each other when there are no edge strips should be cut off.

In a preferred embodiment, one knife is in the frame of the trimming device on a stationary one Place rotatably mounted and the other knife is held in the frame so that it can move axially and radially relative to the first knife. This is accomplished in that the axially and radially movable knife is attached to an eccentric element is that is axially adjustable and rotatable relative to the frame of the trimming device, including an element and the frame connecting part is provided so that the element shifts in the axial direction when it is rotated. In this way the eccentricity of the element is effective when rotated in such a way that it is one knife to the other knife moves in the radial direction, while the axial movement experienced by the element is one knife relative to the other Knife also moved in the axial direction in order to separate the two knives from each other.

In a preferred embodiment of the invention, the edge can also be broken. To break the edge,

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the intermittent incisions that run along the continuous form are used to make the edges of the main body of the continuous form without cutting off the edges with the help of cutting sheets. In the example described the breaking of the edge is done with the help of another measure, whereby a knife can be made so that it only moves axially but not radially to the other to move it a short distance. If the Hessians have one If you have a gap, you are no longer able to cut through the continuous form, but rather you bend the edge of the continuous form along the predetermined line of incisions in the form. In the preferred embodiment, there is the means that connects the eccentric element to the frame consists of a nut and it is ensured that the nut can selectively rotate relative to the frame while the element is secured against such rotation. As a result there is only an axial displacement of one knife to the other to give the knives the ability to break of the edge to give.

Further details and advantages of the invention emerge from the following description of exemplary embodiments based on the attached drawings. Show in it:

1 shows a side view of a device according to the invention for processing continuous forms j

Figure 2 is a side view of the left end of Figure 1;

Fig. 3 is an enlarged side elevation of an inventive Transport and trimming device, the knives being omitted for the sake of clarity

4 shows a vertical section approximately along the line 4-4 of

Fig. 5 is a side elevation of the transport and trimming device from the side opposite to Figure 3;

Fig. 6 is a block diagram of a control system;

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7 is a fragmentary sectional view similar to Pig. 4, but which illustrates a modified embodiment of the invention}

Pig.8 is a fragmentary view, similar to that of Fig.5 however, the example of Figure 7 shows.

The in the lig. The device shown has a base 10 which has two upstanding side panels 12. The base is intended for inclusion in a suitable housing, the Shape depends on whether the processing device for leafing apart, tearing off or the like. serves.

In the example shown, the base 10 is intended to be used in conjunction with a device for leafing apart. It carries a main drive motor 14, which has an output pulley 16, which with belts, not shown, with those parts the device is connected, which require a torque. These include shafts 18 and 20 that extend across the device extend and are stored in the side plates 12. In addition to the rotating shafts 18 and 20, a guide shaft 22 and a further guide shaft 24 also run between the two side plates 12. As for the latter, it is serrated on one surface.

An inlet guide 26 at its entry end guides the continuous form into the device. Just above the guide 26 is a rod 28 attached, which extends between the side plates 12 extends and are rotatably and displaceably supported on the edge guides 30. The edge guides 30 are adjustable by hand so that they encompass the edges of the form to be processed. The rod 28 also still carries a brush-like structure 32 which serves to grasp and tension the form as it enters the apparatus. For this purpose, an adjustable locking button 34 is provided, with the aid of which the angular position of the rod 28 and so that the brush 32 can be adjusted and fixed as desired

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is kept as desired for the passage of the form To provide frictional resistance. Transport trimming devices are provided on both sides of the device, which are each designated by 36. Parts of every transport trimming device 36 and infeed guide 26 provide a path for the form to pass through the apparatus. This path is indicated by a dashed line P in FIG. Each transport trimmer 36 is slidable on shafts 18, 20, 22 and 24 so that the two Devices can be brought closer to and away from each other and their position with respect to the associated side the path P of the form is selectively adjustable. Moreover, such an arrangement is made that each device 36 is movable independently of the other. For this purpose, each device 36 is provided with its own electric reversing motor 38, which can optionally be switched on in order to carry out this individual shift.

Now the transport trimming devices 36 are in Described in detail. Since the right device 36 is a mirror image of the left device 36, only the former is mentioned described.

As Figure 3 shows, each transport trimmer 36 on a carriage 40 which, in the example shown, is a casting ο the like. can be. The reversing motor is on the carriage 40 38, which is equipped with an internal reduction gear 42 which ends in an output shaft 44. As FIG. 5 shows, the output shaft 44 carries a spur gear 46 which meshes with teeth 48 which are at least on one side of the shaft 24 are formed. Since, as mentioned above, each device 36 is supported displaceably on all shafts 18-24 is, when the reversing motor 38 is switched on, the associated device 36 is moved along the four shafts, the The direction of this shift depends on the direction of rotation of the motor 38. Because of the inner reduction gear 42 runs this movement with a relatively low

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speed, so that an accurate adjustment of the location of each Means 36 relative to the side of the web P of the continuous form is possible.

The reversible motors 38 are preferably independently controlled by a control system such as, for example shown in block form in Pig. 6. A power source 50 is connected to each reversible motor 38 via switches 52 and 54, a switch 52 and a switch 54 being provided for each motor 38. The switches 52, 54 are preferably made from normally open, spring-loaded switches that can be closed by hand with the application of pressure and which automatically return to the open position when the pressure is released. Of course, every switch can 52 and 54 are operated independently of the other switches and such an arrangement is made that when operated of a switch 52, the associated device 36 moves inwardly toward the center of the device, while when the switch 54 is actuated, the associated device 36 is displaced outwards towards the side plates 12 (FIG. 1) will. To protect the motor, an electrical or mechanical lock can be placed between switches 52 and 54 for each reversible motor 38 may be provided - not shown - in order to excite both windings of a motor 38 at the same time impede.

A bushing 62 is provided near the upper end of the carriage 40, which supports a sprocket 64 for concentric rotation about the shaft 18 in rotation. On the opposite to shaft 18 At the end of the slide 40 there is an opening 66 through which the shaft 20 passes. Sitting on the shaft 20 a sprocket 68 suitably secured to the carriage 40 against axial displacement relative to the carriage.

Around the sprockets 64 and 68 runs a transport chain 70, on one side of which pins 72 are attached, which strip on the sand in the holes of the Steuerloöhuiig on a longer one

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of a continuous form. The transport chain 70 is driven by the rotation of the shaft 20. As FIG. 5 shows, the sprocket 68 carries a key 74 which engages in a longitudinal groove 16 in the shaft 20. In this way, the sprocket 68 with the device 36 is axially displaceable on the shaft 20, but is driven by this shaft in order to drive the chain 70 in turn. The upper run of the chain 70 runs along the path P of the continuous form between the sprockets 64 and 68.

As can be seen from Pig. 4, the socket 62 has a central one Opening 80 through which a socket 82 extends. The bushing 82 is mounted in a casting 84 by means of bearings 86 and has an inwardly projecting spring 88 which is received in a longitudinal groove 90 in the shaft 18. the Shaft 18 is one of the driven shafts of the device that drives sleeve 82 as it rotates.

On one end of the socket 82 sits a disk-like knife 92 which rotates with the socket. The knife 92 has a circular circumference and is approximately at its circumference in contact with a similar knife 94, which is mainly thereby differs in that it forms a pointed cutting edge 96. The knife 94 is mounted on one end of a socket 98, a gear 100 is seated on the other end. The gear meshes when the blades 92 and 94 are in contact on the circumference, as shown in Pig. 4, with a toothed wheel 102 which is fastened on the sleeve 82. When the shaft 18 is driven, the knives 92 and 94 are rotated in opposite directions and form a cutting mouth 104 at their contact point for cutting

The bush 98 is mounted in a bearing bush 106, which in turn is received and fixed in an eccentric bore 108 in a cylindrical element 110. The middle of the bore 108 is arranged and the bush 106 is constructed so that the axis of rotation of the knife 94 is an ab-

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stood from the center of the cylindrical element 110. The cylindrical element 110 is approximately at 112 on its outer surface provided with a thread that mates with an internal thread 114 of a nut 116 that is close to the casting 84 whose upper end is fastened. A handle 118 is also attached to one end of the cylindrical element 110, on which the cylindrical element 110 can be rotated in the threaded bore of the nut 116.

When the cylindrical element 110 is rotated by means of the handle 118 the knife 94 moves due to the eccentric mounting of the bushing 98 in the cylindrical member 110 away from knife 92 in the radial direction. However, since the cylindrical element 110 is also in the thread of the bore 114 is screwed in, there is also an axial movement of the knife 94 away from the knife 92. When turning the handle 118 are the knives 92 and 94 by a relative movement from the position shown in Pig. 4, in which they are in the cutting position are transferred to a second layer in which they have no functional connection. In the example shown takes the knife 94 in its inoperative position in the position shown in broken lines in Figure 4, in which it is removed from the knife 92 is a considerable distance apart.

A curved extension 120 of the handle can be used for locking be provided with a first and second detent 122 and 124 in the form of notches. A spring 126 can be attached to the casting 84 be attached, which is arranged so that it snaps into the notch 122 or 124. In the preferred embodiment For example, a spring 128 can be provided which connects the casting 84 with a suitable part of the cylindrical element 110 for common Movement connects to provide spring loading in the rest position.

The invention also provides means for the position of the cutting jaws 104 to adjust relative to the transport chain 70, see above

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that the width of the edge strip to be cut can be changed. As can be seen from Pig.5, on the carriage 40 is a Plate 140 attached, which has an opening, not shown, through which a vertical shaft 142 protrudes, on its upper At the end of a button 144 sits. The lower end of the shaft 142 is in an eye 146 bent out of a plate 148 mounted and carries a gear 150. The gear 150 is with a gear 152 in engagement, which on a partially with Threaded stub axle 154 is received, which is attached to the casting 40. The stub axle 154 has besides the thread on its upper and lower surface still flat guide surfaces 156, which are surrounded by arms 158, which at the two legs 160 (only one of which is shown) of a U-shaped fastening iron 162 are formed. By Web 164 of the Ü-iron 162 is attached to the casting 84 by suitable means and the gear 152 is between the Legs 160 of the U-iron 162 arranged.

As a result of this construction, when the knob 144 is turned, the gear 152 is finally rotated, wherein it is along the threaded parts of the stub axle 154 moved. Since the gear 152 is locked between the legs 160, move the TJ iron 162 and with it the casting 84 on the shafts 18 and 22 and take the knives 92 and 94 with them. Since the location of the Slide 40 including the casting is fixed with the motor 38 switched off, the described movement leads change of position between the transport chain 70 and the cutting mouth 104, whereby the width of the edge strip to be cut can be adjusted.

If desired, a spring 170 can include the components in FIG Connect way to the friction in the gear 150, the gear 152 and the stub axle 154 comprising structure to increase so that, once the adjustment has been made by hand, the situation also occurs in use Vibrations of the device is retained.

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A modified embodiment is shown in Pig. 7 and 8 shown a trimming device according to the invention. This example is especially suitable for breaking the edge. As those skilled in the art know, many have continuous forms on one or both sides of the form, a strip of margins running along the edge of the main body of the form is separated by an interrupted incision. Often you want these marginal strips when tearing off the continuous form without actually cutting the edge strips by removing the edge strip along the incision. The example of FIGS. 7 and 8 shows an embodiment for this Two For the most part, the construction of Fig.7 and 8 almost identical to that of FIGS. 3 and 4, which is why the same elements are denoted by the same apostrophized reference numerals.

As Figure 7 shows, the upper part of the casting 84 * has a Threaded hole 200 into which a screw bolt 202 is screwed, on which a button 204 sits. When turning the Button 204, the screw bolt 202 blocks the sleeve 116 » against rotation in the casting 84 * or unlocks the sleeve again. When a combined axial and radial displacement of the knife 94 'to the knife 92' is desired, the sleeve 116 'is blocked against this rotation. However, if you can only one axial displacement of the knife 94 'to the knife 92 want to have, for example to break the verge, For example, the knob 204 can be rotated accordingly to unlock the sleeve 116 'to rotate within the casting 84' can*

As FIG. 8 shows, there is a small actuator on the sleeve 116 ' 206 attached. By moving the actuator 206, the sleeve 116 'can be rotated in the manner described. With such a Rotation is the cylindrical member 110 · against one Rotation secured because the spring 126 'engages in the notch 124 · is. As a result, there is relative rotation and due to the threaded connection between the sleeve 116 'and

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the cylindrical element 110, the latter does not rotate, but rather moves in the axial direction, as a result of which the upper knife 94 'is transferred into a position which is indicated by dashed lines in FIG is. The parts are preferably arranged in such a way that the spacing of the knives 94 'and 92 * is of the order of magnitude Is 0.64 mm. Then a continuous form can be inserted into the device in such a way that the incision comes to lie in the gap between the two knives in order to then break away the edge strip.

Pig.7 also illustrates a useful construction for use in devices such as tear-off devices that process relatively thin forms that can only have a single ply. In detail, the bearing bush 106 used in the example of FIGS. 1-5 is omitted in this construction and a bearing 210 is used in its place. The bearing 210 is received with an interference fit in the bore 108 · in the element 110 ^f . A slide bearing 212 is provided near the knife 94 'which has a spring 214 which engages a cap 216 of the cylindrical member 110 to prevent the bearing 212 from rotating but to make it axially displaceable between the bearings 210 and 212 a helical spring 218 is attached, which presses the last-mentioned bearing and thus the knife 94 'to the right according to FIG. This resilient bias makes it possible for the knives 94 'and 92' to align automatically; this improves the function of the device, whether it is used for trimming or breaking off the tape.

As is clear from the foregoing description, the device according to the invention provides an independent mechanical one Adjustment of the position of the trimming devices in the machine, thereby improving the setting efficiency. aside from that it provides a simple but effective means of rendering the trimmers ineffective when a form is used that does not require trimming of the edge.

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Claims (7)

Expectations 1.! Device for processing continuous forms, marked-V y is characterized by Device parts (26) which form a path (P) for the continuous form to pass through the device, a drive (20, 64, 68, 70) for moving the continuous form on the path (P) through the device and a trimming device (36) for trimming at least a longitudinal edge of the continuous form, which has two rotating knives (92, 94), which on a peripheral Are in such contact with each other that a cutting mouth (104) is formed on one edge of the web (P), and which are arranged such that they are axially and radially movable with respect to one another, an arrangement with a single Actuator (11.8) is provided, by means of which the axial and radial movement can be carried out simultaneously. 2. Apparatus according to claim 1, characterized in that the trimming device (36) has a frame part (84) and that one knife (92) is rotatably mounted in a position fixed to this frame part and the other Knife (94) on the one hand knife (92) and axially and radially displaceably supported in relation to the frame part in the frame part is. 3. Apparatus according to claim 2, characterized in that the other knife (94) on the frame part with the aid of a axially displaceable and rotatable eccentric element (110) is supported and that the element is connected to the frame part in such a way that it shifts in the axial direction when it is rotated, the Actuator is a handle (118) attached to the element. 4. Apparatus according to claim 3, characterized in that 6 0 9809/0310 252460b - ι ί? - the displaceable knife (94) is mounted on the element (110) is. 5. Apparatus according to claim 3, characterized by a selectively actuatable arrangement (204) through which the parts connecting the element (110) to the frame part (84 ') are displaceable in such a way that the element (110 ¹ ) moves in the axial direction, but does not rotate to the knife (92 ¹ , 94 ') for breaking off the edge strip axially to beab was en. 6. Apparatus according to claim 5, characterized in that the connecting parts have an internal thread (114) provided with a sleeve (116 ^{) which is mounted in the frame part (84 1} ), and a thread (112) on the element (110), which is screwed into the sleeve, and that the selectively actuatable arrangement includes a first locking device (202) which normally secures the sleeve (116) against rotation relative to the frame (84 ') and a second locking device (124', 126 ·), Which secures the eccentric element (110 ·) against rotation, and an actuator (206) for rotating the sleeve after releasing the first locking device. 7. The device according to claim 1, characterized by a selective actuatable arrangement for executing an exclusively axial movement between the knives (92, 94 ') to switch the device to cancel the edge strip. 6098Ü9 / Ü310