DE2136790A1 - MACHINE FOR THE PRODUCTION OF FORMS, IN PARTICULAR CONTINUOUS FORMS - Google Patents

Description

Dipl.-Ing. Adolf H. Fischer

Dipl.-Ing. Wolf-Dieter Fischer

67 Ludv; igshafen / Rhein Ri ciiar α-Wagner-Strasse 22

Machine for making forms, especially continuous forms

The invention relates to a machine for producing forms, in particular continuous forms, consisting of paper roll arranged in journals, a paper web tension control device, a side edge control, an edge trimming device, a dust brushing device, the printing units, a longitudinal perforation device, a device for gluing, a carbon paper feed device, a device for attaching the carbon paper to the paper web, devices for a filing hole, edge hole, longitudinal perforation as well Cross perforation, a zigzag folder and a form delivery.

A well-known machine with these features is built in lic-ihenbauweise, i.e. that the paper inlet on one side of the machine, while the formulation display is on the opposite end of the machine Machine is located. But this results in the essential one

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Lachtoil that a large number of components, in particular Space to set up the machine is required, v / whether ai the paper web inside the machine becomes very long and this results in a large number of tolerances in the Add the machine, which leads to inaccuracies in terms of printing and formats. For printing are namely The following factors are decisive, namely the register hairiness several colors to each other, the retention of the Colors for control holes and transverse perforations and the format length. As a result of the resulting tolerances, these conditions can only be met to a limited extent or with increased effort fulfill. Highly qualified specialists are also needed to operate the known machines, as one further perfect running of the paper web in many cases only with special problems when the difficulties mentioned occur Resources and experience is guaranteed. Both known machines occur increasingly machine vibrations that require special foundations for the machines.

The invention is now based on the object of a to train such a machine so that, in particular within the machine, the shortest possible paper web results, whereby the structural effort is reduced and the operation is simplified.

This object is achieved according to the invention in that the individual device elements between approximately U-shaped racks are arranged, with the vertical Stand up the leg of the "U" on the floor, and that the paper roll and the form delivery are arranged at the same end of the machine; and the course of the paper web from one leg to the other leg and back over the cross member of the racks for the display of forms.

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BATH

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To make the machine "particularly short, you go according to the invention so that the paper roll laterally is elevated from the form display in such a way that its axis is arranged parallel to the course of the paper web is, wherein following the tension control device is a turning bar pivoting the paper web by 90 ° is provided.

The inventive embodiment of such a The machine has the advantage that the compact design means that there is a short paper web between Paper roll and form delivery is available and thus significantly fewer tolerances have to be balanced. The machine according to the invention is easy to operate where there must be few adjustment options, to perform continuous forms printing. The machine vibrations are due to the compact design reduced to a minimum, and in particular there is also a low-noise run. The compact design also requires that few drives are needed, especially the drives and connections directly above Gears can be made, whereby there is a special pitch accuracy and rigidity of the drives, which is also has a beneficial effect on a tolerance reduction within the machine. Another advantage of the invention Machine consists in the fact that the person operating the form display and the roll of paper at the same time can observe, so that errors in the roll can be seen immediately, such as splices or uneven spots Windings on the roll. This immediately gives the operating personnel the opportunity to specifically intervene in the process sequence. This makes the committee substantial reduced.

BATH

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So far, the professional world has evidently refrained from such a structural design of such a machine because particular difficulties arise when the paper inlet and form delivery are arranged at the same end of the machine. Because be used if possible paper rolls with very large diameters, are, there is no possibility to arrange these paper rolls just before the machine, but e is required to install this rotated by about 90 ° laterally ;. To do this, however, it is necessary to guide the paper web into the machine via a turning bar, and experience has shown that when such a turning bar is used, large lateral forces occur which lead to considerable inaccuracies in the machine that must first be eliminated by special measures.

So it is proposed according to the invention that two large rotating wrap-around cylinders arranged one behind the other in front of the printing units are provided, wherein the paper web the first cylinder with its one surface and then the other surface wraps around the second cylinder and the angles of wrap are the same in each case. This measure stabilizes the paper web and produces even paper slip.

One cylinder is advantageous around the axis of the other The cylinder can be swiveled. In this way, the wrap angle and thus also the paper slip can be influenced, which leads to deliberate small changes in the length of the web.

An advantageous embodiment of the invention consists in that the edge trimming device, the dust scrubbing device and the wrap cylinders in one leg and the printing units in the other leg of the

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Racks arranged; are, while the longitudinal perforation device, the device for gluing, the devices for attaching the carbon paper, for the filing holes, the Edge perforation, the longitudinal perforation, the transverse perforation and the zigzag folder between the cross members the racks are attached.

In one embodiment of the machine "in which the Web tension control device has two guide rollers and a paper loop roller, and the loop roller over a potentiometer control is in operative connection with a brake, the paper loop roller is on two sides Racks guided on gears and has a. Friction disc over which a brake band is guided, which is arranged at one end at a fixed point, and at the other end has a weight. A .Particularly damping the movement of the paper loop roller.

Another advantageous embodiment of the invention is that three printing units are provided and in in a manner known per se a plate cylinder, a transfer cylinder and .ein impression cylinder, and that two printing units on a common impression cylinder work. Due to this special arrangement of the printing units there is the possibility of the im Continuous printing processes used both printing processes, namely to carry out the indirect and direct process «

Fixed-format machines are known in rotary printing machines, i.e. machines with which a change in the basic

is not possible and also machines where the format can be changed, once through Cylinder shift, where a) the change with the help of

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Sliding bearings and t>) takes place with the help of rockers or through. Exchange of an entire printing unit made can be. There are also variable rotary printing machines, where the iOrmatausgleich by back-. pulling the paper web takes place. In all of these machines to be changed, there is the disadvantage that Tolerances and clearance have an effect on the printing accuracy and machine vibrations. This There is no disadvantage with the fixed-format machines, since the bearings are mounted directly in the machine frames are.

■ A particularly advantageous embodiment of the invention now provides that to change the basic formats and use of transfer printing cylinders and plate cylinders of different Diameter can be used in the frame core eccentric, on which the cylinder is eccentrically mounted are. This has the advantage that the advantages of the variable machines with the advantages of the fixed format Machines are combined and one changes the basic formats is possible.

A further advantageous embodiment of the invention is that the transfer printing cylinder on a means * a lever adjustable eccentric is mounted, in one end position of the lever the drive wheel except There is engagement with the drive wheel of the transfer printing cylinder, while the transfer printing cylinder and plate cylinder are not in contact stay in mesh »This enables the individual operating processes to be carried out with a single lever in an advantageous manner take place, with a simple in the end position of the lever Rotation of the pressure level by a maximum of 360 °, in particular from tooth pitch to tooth pitch, is possible.

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With a machine, "with a tool for attaching an edge or drainage hole on a shaft Slidable block is attached, it is also advantageous that the shaft is designed as a rack and a transverse hole is made in the block into which a toothed rack to be engaged Tooth wrench is retractable. This is a particularly simple and advantageous way of moving the Block and thus the tool given, so far the block arranged in a snug fit on the shaft with the help an impact object has moved, resulting in damage and inaccurate adjustment of the tool leads.

Finally, the invention proposes that the device for the transverse perforation 'two on an impression cylinder has working cylinder, which during the run, for example by axial displacement of meshing helical gears that can be turned against each other sensitively. By the possibility The sensitive adjustment of the cylinders provided with the perforation tool can result in the formation of bevels Stacks of forms corrected while the machine is running will.

Further features of the invention emerge from the following description of exemplary embodiments in FIG Connection with the drawings and claims,

Show it,

Figure 1 is a longitudinal view of the machine according to the invention,

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Figure 2 is a side view of the machine according to Figure 1,

Figure 3 is a view of the paper web stabilization device,

FIG. 4 is a view of the paper web tension control device;

Figure 5 is a side view according to Figure 4 ·,

FIG. 6 a view of the printing units in an enlarged representation,

FIG. 7 shows a particular embodiment of a printing unit in a view,

Figure 8 shows a partial cross-section along the line A-A in Figure 7 »

FIG. 9 shows a special switching device for a printing unit,

Figure 10 shows a special arrangement of the tool

for attaching a margin or filing hole.

In Figures 1 and 2, the machine according to the invention is shown in its entirety, the for the production of Forms, especially continuous forms. The machine has two roughly U-shaped machine

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stand 19, with the vertical legs 20,2O ^{1 of} the "U" on the ground. The individual device elements of the machine are located between the machine frames 19 ″, whereby a paper roll 1 is initially mounted on the side of the machine in such a way that its axis is arranged parallel to the course of the paper web 21. Following the paper roll 1 is a paper web tension control device 2 provided, which serves for keeping constant the Bähnspannung. This is followed by a turning rod 3 follows, which causes the paper web can be pivoted by 90 ° into the machine. the machine also has a side edge control 4 and a Randbesäumungsvorrichtung 5 _v "wherein the The paper web is guided further over a dust brushing device 6 and a paper web stabilizing device 7. The last-mentioned parts are located in the area of one vertical leg 20 of the frames 19. The paper web is then passed on to printing units δ, β ', δ ¹¹ , whereby it these printing units are a three-color printing unit h andelt, of which the upper printing unit 8 ¹ 'can be switched from front side printing to back side printing by changing the direction of rotation and inserting the paper web 21 from the other side. Then the paper web 21 is guided over the cross member 22 of the frames 19 back to the end of the machine where the paper roll 1 is located, namely over a longitudinal perforation device 9 »a device for gluing 10, a device 12 for attaching the carbon paper to the Paper web, with a carbon paper feed device 11 arranged directly above the machine, and further via a device for the filing holes 13, a device for the edge holes 14, a device for the longitudinal perforation 15 * a device for the transverse perforation 16 and a zigzag Folding device 17 to form a form delivery 18. With the Zick-Zaek folding device 1? it can be, for example, a known embodiment according to the German patent specification 1 275 075 which has the task of producing the finished continuous form

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to fold or lay the web in the appropriate length. It can therefore be seen that the course of the paper web 21 is such that the paper web, starting from the paper roll at one end of the machine, finally at the form delivery 18 back to the same end of the machine is.

FIG. 3 shows the one provided with the reference number 7 in FIG Paper web stabilization device in an enlarged view, the device from two CJmschlingungszylindern 23 and 23 'consists of the Paper web 21 is looped first with one side and then with the back, the angle of wrap is the same for both cylinders 23, 23 '. It is crucial that the paper web 21 the Cylinder 23, 23 'wrapped around alternately, so that a uniform Slippage and thus perfect stabilization of the paper web 21 can be achieved. The wrap-around cylinder 23 'is; pivotable about the axis of the cylinder 23 arranged so that there is the possibility of the angle of wrap to change in order to generate a uniform larger or smaller slip, so that with it the track length can be varied.

Figures 4 and 5 show the paper web tension control device 2, which has two deflection rollers 24, as well as a paper loop roller arranged below the rollers 25, v / obei the paper web 21 is guided over these rollers 24 and 25. At the shaft ends of the Loop roller 25 are gear wheels 27 arranged with vertically arranged side racks 26 mesh, wherein when lifting and lowering the loop roller 25 as a result of paper tension changes a in the Drawings not shown potentiometer control

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a brake arranged on the paper roll 1 opens or closes. In addition, a damping device is provided, which causes "when going up the loop roller 25 this movement is damped, while with a Downward movement accelerates the movement of the roller 25 will. This damping device consists of a friction disc 28 attached to the paper loop roller 25, over which a brake band 29 is guided, whose one end is attached to a plague point 30 while a weight 31 is arranged at the other end. the The mode of operation is such that during the upward movement of the loop roller 25, in addition to the friction work the lifting work for the weight 31 is added, while during the downward movement the pull by the weight 31 has a negative effect.

In Figure 6, the various printing units 8, 8 ', 8, ¹ ' are shown in an enlarged view, these printing units each having a plate cylinder 32, a transfer cylinder 33 and an impression cylinder 34 >> 3 ^ '. The printing units 8, 8 * work on a common impression cylinder 34- '. This special arrangement and design of the printing units makes it possible to work with simple means in what is known as the indirect letterpress process or in the direct letterpress process. In the drawing, the course of the paper web 21 is shown in dashed lines for the direct method, while in the indirect method the course of the paper web 21 is indicated by the solid line. In the direct process, the transfer cylinder 33 works as an impression cylinder, for which purpose it is necessary to replace the soft rubber blanket for the indirect process with a support suitable for the direct process.

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In Figures 7 and 8, a "particularly advantageous Possibility to change the basic formats shown, whereby 19 frame holes 4-8 are provided in the frames, are inserted into the core eccentric 35, with eccentric bores 4-9, 4-9 'being provided in the core eccentric 35, those for receiving the plate cylinder 32 or transfer cylinder 33 serve. With the reference number 4-9 'is included the hole in the core eccentric 35 "at the largest and with the Reference numeral 4-9 'the hole in the core eccentric 35 at the smallest cylinder diameter.

Figures 9 and 8 show a possibility of switching on and off a printing unit 8 or 8 ¹ or 8 ' ¹ , where' fc the transfer cylinder 33 is mounted on an eccentric 37; _ which via a linkage 52 with a Lever 36 is connected. In the first position 50 of the lever 36, the transfer cylinder 33 rests both on the impression cylinder 34 '34-' and on the plate cylinder 32, while in the position of the lever 36 printing is switched off, ie the transfer cylinder 33 is removed from the impression cylinder 34 - or 54- 'and

tr

lifted from the plate cylinder 32, while still a Gear connection to the drive wheel 39 and the plate cylinder remains. In the end position 38 of the lever 36 is the transfer cylinder 53 finally swung out of engagement with the drive wheel 39. This results in this

Position a simple shutdown of the relevant printing ' works and also the possibility of rotating the printing status, in particular from tooth pitch to tooth pitch.

In Figure 10, an advantageous arrangement of the tool is shown, which is particularly in the with the reference numerals 12, 13 and 14 in Figure 1 designated devices can be used. There is tool 4-0

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for making the perforation on a block 42, which is in A snug fit on a shaft 41 is slidably arranged. The shaft 41 is designed as a rack 43, wherein there is a transverse bore 44 in the block 42 in the area of the rack 43, into which the rack To be brought into engagement tooth wrench is one. In this way, the tool 40 can be set precisely, furthermore, damage to the tool 40 or to the block 42 during displacement is not to be feared.

In FIG. 1, the device for the transverse perforation is identified by the reference numeral 16, this being the case The device consists of two cylinders 46 and 47 working on an impression cylinder 45 and on the Cylinders 46 and 47 the perforation knives in certain Distances are appropriate. The two cylinders 45 and 47 are sensitive to each other during the run rotatable, which can be done for example with the help of meshing helical gears. ■ can. This simple adjustment of the cylinders 46 and a sloping stack of zigzag-folded forms is straightened. This sloping stacking was observed when different types of paper, in particular with different paper weights, were used, see above that in the known devices then the machine * had to be stopped in order to change the distance between the perforation knife. For example, one of the following resulted in a

60 g / m paper weight in a completely straight stack, while with the same setting for one paper weight

of 40 g / m the stack was formed at an angle.

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Claims (1)

Patent claims 1) "Machine_for producing forms, in particular Continuous forms, consisting of arranged in racks Paper roll, a paper web tension control device, a side edge control. an edge trimmer, a dust brushing device, the printing units, a longitudinal perforation device, a device for gluing, a carbon paper feeding device, a device for attaching the carbon paper to the paper web, devices for filing holes, Eandlochung, longitudinal perforation and transverse perforation, a zigzag folding device and a Form display, characterized in that the individual device elements between approximately U-shaped Racks (19) are arranged, the vertical legs (20, 20 ') of the "U" standing up on the ground, and that the paper roll (1) and the form delivery (18) are arranged at the same end of the machine and the Course of the paper web (21) from one leg (20) to the other leg (20 ') and back over the cross member (22) of the frames (19) to the form display (18) he follows. 2) Machine according to claim 1, characterized in that "that the paper roll (i) is raised to the side of the form delivery (18) in such a way that its axis is arranged parallel to the course of the paper web (21), wherein following the tension control device (2) is a turning piece which swivels the paper web (21) by 90 ° ange (3) is provided. 2Q9886 / Q060 5) Machine according to claim 1 and 2, characterized in that in front of the printing ^{units (8, 8 ', 8 I!} ) Two large rotating wrap cylinders (23, 23' arranged one behind the other are provided, the paper web (21) the first cylinder ( 23) wraps around with its one surface and then wraps around the second cylinder (23 ') with the other surface and the wrap angles are each the same. 4-) Machine according to claim 3 »characterized in that one cylinder (23 ¹ ) can be pivoted about the axis of the other cylinder (23). 5) Machine according to claim 1 to 4-, characterized in that the edge trimming device (5) »the dust brushing device (6) and the wrap-around cylinder (7» 7 ') in one leg (20) and the printing units (8, 8', 8 ¹ ') are arranged in the other leg (20 ¹ ) of the frames (19), while the longitudinal perforation device (9), the device for gluing (1O), the devices for attaching the carbon paper (12), for the. Filing holes (13) _S the tape holes (1 ² O, the longitudinal perforation (15), the transverse perforation (16) and the zigzag folding device (17) are attached between the cross members (22) of the frames (19). 6) Machine in which the web tension control device has two pulleys and a paper loop roller and the loop roller is in operative connection with a brake via a potentiometer control, after. Claim 1 to 5, characterized in that " - 16 - BATH ORIGINAL 2098Ö6 / Ö0C0 the paper loop roller (25) sn two lateral racks (26) is guided on gears (27) and one Has friction disc (28), over which a brake band (29) is guided, which at one end at a fixed point (30) is arranged and at the other end has a weight (31). 7) Machine according to claim 1 to 6, characterized in that three printing ^{units (8,8 ', δ 11} ) are provided "and in (34- »34- '), and in that two printing units (8,8' per se known manner a plate cylinder (32), a Umdruckzylinder (33) and an impression cylinder) operate on a common impression cylinder (34- ¹⁾ *, and the other printing unit (8 ^f ') can be switched from front to back printing. 8) Machine according to one of claims 1 to 7 »characterized in that for changing the basic formats and inserting transfer printing cylinders (33) ^{and (} ^ plate cylinders (32) of different diameters in the frames (19) core eccentrics (35) can be used on which the cylinders (32,33) are mounted eccentrically. 9) Machine according to one of claims 1 to 8, characterized in that that the transfer cylinder (33) is mounted on an eccentric (37) which can be adjusted by means of a lever (36) w , wherein in an end position (38) of the lever (36) the drive wheel (39) is out of engagement with the drive wheel of the transfer cylinder "(33), while the transfer cylinder (33) and plate cylinder (32) remain in meshing engagement without contact. 10) Machine that has a tool for attaching a Edge or Abheftlochung is attached to a block displaceable on a shaft, according to one of the Claims 1 to 9, characterized in that the shaft (41) is designed as a rack (4-3) and in - 17 -. BATH ORIGINAL 209886/0 0 60 the block (42) has a transverse bore (44) into which one engages with the rack (4 $) bringing tooth wrench can be inserted. 11) machine according to one of claims 1 to 10, characterized characterized in that the device for the transverse perforation (16) two on an impression cylinder (45) working cylinder (46,47) which during the run, for example by axial displacement of helical gears in mesh, which can be turned against each other with care. BAD ORSGiNAL 203888/006