DE1549959B1 - HIGH PERFORMANCE ROTATING SERIAL PRINTER - Google Patents

Description

The invention relates to a serial printing unit with a mounted on a normal to the printing plane Shaft attached rotating type drum,

are seen, which determine the path of the print hammers (8) 35 on their forehead facing the print plane from the rest to the working position influencing surface arranged in a circle and against the print end, whereby at a bearing point (22)
clamped leaf springs (23) on their front
Divide one of the print hammers (8) into the working

having planar movable printing types.

A number of high-speed printing systems have already become known which are capable of

Position shifting anchor masses (21) carry 40 that are used by electronic machines for output

to write down the incoming data with high printing frequencies and, in addition, to

and can be actuated via magnetic core attachments (24, 25).

3. serial printing unit according to claim 1 and 2, Chen processing speeds of the electron thereby characterized in that each type of printing (2) see systems are adapted. This is it in the direction of storage under the permanent input 45 predominantly about parallel printing system types, the Flow one on the type drum base (4) arranged naturally for larger ones to be processed per unit of time or amounts of data to be printed are suitable. This includes B. Parallel printer that usually work with continuously rotating type cylinders according to the principle of flying printing and up to For example, 25 to 132-digit lines / sec print, which corresponds to an hourly data volume of 11880000 characters. This state of Technology results, for example, from the

th print hammers (8) are offset from one another, so 55 published pamphlet literature "Electronic Redaß each anchor mass (21) of a Wählmagneten chenanlagen" 4 (1962), No. 4, pp. 149 to 153.
(18) with a corresponding sub-paragraph level A printing principle has also become known at

(17, 17 ', 17 ") of a print hammer (8) in action which a type wheel on a normal to the print connection can be brought. level mounted, continuously rotating shaft is driven by a 5th serial printing unit according to claims 1 to 60 clutch, the shutdown of the 4, characterized in that when using the type wheel by a selector lever under the control multiple Wähhnagnete (18) by subdividing a selector without stopping the Andes the entire character set carried out on the type drive shaft xind the type wheel through drum (1) arranged printing types (2) this friction is carried along by the shaft (see deutzu Groups are grouped together, each 65 see patent specification 423 548).

Selector magnets part of the character stock in Finally, a device for

Depending on the bit combination of the individual control of a line printer, refer to Character is assigned. in addition to general previously known devices

Neten leaf spring (5) is held, the rear Attachment (12) of the printing type (2) on the locking bevel (13) attached to the diameter (8) fixes himself on.

4. serial printing unit according to claims 1 to 3, characterized in that when used several selector magnets (18) the impact surface of the individual, each arranged one behind the other.

3 4

a be-system also connects for the print hammer drive. In many cases, they are already familiar with writing Shock wheel assembly is provided, the machines in data processing systems as an output path this push wheel used the path of a units in the active position, such as typeface-sensitive Print hammer cuts and between machines with fixed platen and Kugeleinem Tusk and the 5-head printing system in the active position. The advantages of When a print hammer occurs, an impact occurs (see fixed platen, like simple feed German Interpretation document 1 224 072). options on continuous forms, use

Practice has now shown that up to now the use of push-on devices, etc., was not a problem Types of printing systems despite their high voltage. Due to the fixed arrangement of the printing capacity there are a number of disadvantages. io gens and for this a laterally movable printing device, for example This occurs with parallel printers due to the shortening of the job jump time Disadvantages obviously manifest themselves in a considerable speed advantage achieved when which here the extremely high energy requirement neither the mass of the printing device compared to the mass plays an essential role, but it is necessary to make the writing carriage appear appreciably minor. That Printing magnets, which are in the same number as printing positions 15, is certainly the case in particular when len (e.g. 132) must be present, at the same time as a carriage with a large line width and with irritate. Another notable disadvantage is a pre-plug device that is used, the enormously high, component-related effort required for this speed advantage is now gederlicher Storage capacity in order to express the underlying concept of the invention 20 kenden characters for a full line width are used by the printing system instead of the keep. The ToIe platen, which has a relatively low mass, also has a disadvantageous effect. rance of the pulse triggering times of the pressure magnets continuously rotating type drum with attached to it different heights in one line of the printing device printed for a leap er sign from, whereby this disadvantage often results in a necessary lateral displacement itself and very poor line spacing of the printed characters 25 is therefore a significant compared to known systems becomes obvious. higher printing performance achieved.

This principle of a constantly circulating type - in particular, it is thought, and an essential-

cylinder also has the consequence that the paper feed rather purpose according to the invention is seen in

tion and the paper transport only with great technical - among other things, the previously known printing systems

Schem effort, for example that of the sting 30 with its spatial dimensions component-wise

instinct is to be realized. In addition, the essentials have to be reduced and simplified, while the

printing of carbon copies is very difficult, whereby production costs are reduced in order to

the printing of account cards, which by means of the device according to the invention proposal to a far greater

Plug-in devices are to be supplied completely to the outside circle of consumers, even smaller companies

is closed. 35 appeals to be able to make usable, whereby advantageous

Finally, the well-known, equally important factor was that the well-known, disadvantageous and disruptive noise and speed advantages compared to the well-known development of such, aforementioned printing systems were undercut relatively little,
stars contribute to the rejection. It is caused by the arrangement of the paper to be printed, which solves the problem that each type of printing is assigned a printing hammer loosely between the rotating type cylinder, which is arranged by means of an elongated hole on one of the type and printing hammers and with each drum shaft concentric, circular bottomed pressure must be moved with high acceleration against the type axis attached to the type drum in the rapeseed cylinder, whereby the radial direction is also displaceable and for the type-related delivery of the printing ink to this with a relative 45 stroke is pivotally mounted that also the high-speed printing printing systems is to hammer by means of a mention outside of their movement, which then make very expensive inking train arranged selection magnets from a rest required under inevitable spatial position in an operative position, with expansion of such printing systems me. the trajectory of the print hammers in their

Even the protruding print, already shown according to the system of a rotating active position, cuts the trajectory of the tusks of a pushing wheel and the type drum, and has significant disadvantages between a tusk and the pushing hammer located in the device, since a pushing telegraph is based on this Impact effect occurs, and that in movement direction, in which the type wheel can be held in place behind the impact wheel in the printing position device, or with the aid of 55 fixed run-up slope is provided through which the printing hammer located in an intermediate, continuously rotating auxiliary active position the necessary time production can be fed back into their friction shaft of a friction device,
wise stopping of the type wheel accomplished According to a further development of the invention, a is. Print hammer not only through a stationary,

Based on this above-mentioned 60 choice stand attached outside the type drum it is therefore the task of technology to bring the invented magnet into its operative position, but rather it manure to avoid these disadvantages and a facility is provided, preferably for security against to propose that instead of a parallel pressure collision of the armature with the subsequent one kers provides a significantly improved serial printing system, hammer approach, instead of a single solenoid, in the latter according to the invention proposal 65 th to arrange two or more, the Aufdie Advantages of a typewriter, in particular the striking surface of the individual, one behind the other one with a fixed platen, offset from one another with an orderly print hammer, high-speed serial printing so that each armature mass of a selector magnet with

5 6

a corresponding partial step of the printing hammer- Fig. 3 is a partial view of Fig. 1 with steps

niers can be brought into the operative position. With this division of the print hammer as a further execution order the security is proportional to the number the arranged magnets are enlarged. Fig. 4 is a partial longitudinal section through the type

With the help of a suitable, in principle known 5 drum with printing type and print hammer as well and therefore not belonging directly to the invention, so view of the Wähhnagneten with armature leaf spring in with stepping mechanism, also not shown, the rest and active action shown in dashed lines can in connection with the relatively small development to the print hammer in the direction of arrow I according to the Mass of the printing device the time for one digit Fig. 1,

lens jump can be kept small. ω Fig. 5 an enlarged perspective representation

For example, according to the invention, the drive of the printing device is for this purpose by means of a tooth beat a time of 15 to 20 ms. provided, with belts,

the pressure number of the type drum is 2400 rpm. Figure 6 is an enlarged partial front view of the applique. The time for one rotation is then 25 ms. drive of the printing device instead of the toothed belt the impulse output on the Wähhnagneten up to 15 mens according to Figure 5 by means of gears, to open a prepared and accelerated fi g. 7 erne partial top view of the drive according to FIG

The type of printing on the platen is shown in FIG. 6th

A print preparation phase of 20ms is planned. In accordance with FIG. 1, one is on the end face

this time, the excitation and attraction time of the cylindrical body, which will be short below Wähhnagneten, the displacement of the print hammer 20 is referred to as type drum 1, circularly its rest- in its real action, the flight time of the orderly pressure type 2 attached, the latter being Ty-pressure hammer and the printing type as well as enough pen drum 1 is mounted on a shaft 3 and lowering size Safety clearances between the individual runs right to the printing plane. The types of printing 2 Motion sequences. At the same time falls into the past are parallel to the shaft of the type drum 1 in In the preparation phase of the leap in the printer's 25 direction on the plane of the paper, they can move and become tion, so that an additional expenditure of time for this in the case of Blattfe disposed on the drum base 4 comes. The time sequence of two held on the magnet dem 5 in their rest position and thus remain Anchor moving past in the exemplary embodiment ins- removed from the printing plane. To do this, the a total of 50 printing units arranged in the type drum - drive described in more detail below calculated accordingly at a speed of 30, that the type drum 1 is continuously with konder Type drum rotates at constant speed, the

The circular path of the printing types is tangent to the axis of the platen 6 at a point that is the actual 2400 rpm to —-— = 0.0005 s = 0.5 ms. Represents pressure zone 7.

40-50 35 On the type drum 1 are further so-called

called print hammers 8, which in radial to the type de-drum shaft 3 arranged slots 9 out

Compared to the named types of Schnelldruk- are on a circularly curved axis 10 core and their higher pressure output are rotatably mounted and guided in elongated holes 11, wherein of the present invention, despite the lower 40, the print hammer 8 according to FIGS. 1 and 4 Printing performance major benefits. The invention is in the position shown in the rest position The serial printer according to the present invention has a far lower energy requirement, and in this position it is in a stop ring 20 to excite the pressure magnets, one will be held. They are fixed by a substantial lower component-related expenditure on sentence 12, which is under the active position of the leaf springs 5 required storage capacity, a better and 45 standing print types 2, as well as by the clearer line position as well as a better and clearer hammering 8 attached locking bevels 13. Above ren imprint of the printed mark. Further the addition the centrifugal force acts in the same that Paper guide, paper transport and the printing hammer in the rest position holding direction, ken of paper copies compared to the state.

technology improved. Through the invention, 50 belts or toothed gears are also known, also the printing of account cards, which can be done by means of a construction plug-in device, which is advantageously inserted here are supplied, allows. arrangement, therefore in the functional description noises of the paper to be printed are far and in the drawing at the following point avoided, wrote, connected to type drum 1. The use of a very simple coloring 55 shaft 15 of the impact wheel 14 is offset by 90 ° bandsystems can arrange the very complex ribbon to the shaft 3 of the type drum 1, however no printing units. offset so far that the shock wheel 14 does not reach the shaft 3 In the F i g. 1 to 7 of the drawings is the cut. Which was on the circumference of the push wheel 14 of the invention on hand a preferred ordered tusks 16 are mounted so that they Exemplary embodiment of a high-performance series 60 with the stepped attachment 17 of that pressure hammer printer, which can work together in detail, which is directly or is described in more detail below. It shows just before the pressure zone is located when this ham-

Fig. 1 a longitudinally shown longitudinal mer was previously brought into its operative position, cut through the type drum with it- Accordingly, the type drum 1 and the push-

neter pressure device in the rest position, 65 rad 14 to be viewed as a gear unit, which means

F i g. 2 is an enlarged schematic representation of the shaft 15 of a designed as a continuous runner Use position of the tusks of the push wheel to th synchronous or asynchronous motor in known the print hammers according to Fi g. 1, way is powered. The rotary behaves

7 8

number of the thrust wheel 14 to the speed of the typentrom- Here the pressure hammer 8 is according to the thrust-

mel 1 like the number of printing types 2 to the number law to almost twice the tusk

of the tusks 16, for example by moving at 50 to the speed of the type drum 1

the circumference of the type drum arranged accelerates, whereby it is imposed on it

Print types and a number of 25 on the circular 5 Relativbann contact-free from the area of the

circumference of the shock wheel 14 attached tusks the tusk 14 exits.

Shock wheel 14 twice the speed of rotation. 2 clarified in a schematic representation must. At the same time, the circling corresponds to this process, in that the position when the print hammers 8 move in a certain stroke of the tusk 16 on the print hammer is set with the circular path of the tusks 16, while in the dashed position it is always on Print hammer and a tusk is shown how the print hammer 8 previously hit the in this predetermined point. A shock-disturbing area 16 'of the preceding tooth 16 "occurs when both parts come into contact at this point. For this purpose, the direction of arrow I _{5 means} that the path only takes place if a hammer has previously been brought into action of tooth 16, the same as the direction of rotation of the push-wheel, arrow position With the correct setting 15 direction II, that the path of the print hammer hits the same, there is always a tooth tip 16 of the type turning direction and finally the relative path of the mer8 on a print hammer light in the working position arrow direction III. Pressure hammer 8 and its contactless outward movement, part of the impact energy from which recedes from the area of the impact wheel 14.
resilient tooth added, which this 20 For additional security against collision of the fore-springing back on the hammer and printing type back magnet armature with the following hammer. The speed of hammer and pressure set 17 can be doubled according to the law of impact, instead of a single selector magnet type, th 18 two or more, if possible, one behind the other so that the contact between tooth and hammer is arranged so that they are in different paths with during half an oscillation period persists. 25 the magnet armature mass 21 is reduced to the respective pressure, this speed is hit by a hammer.

Leaf spring 5 (FIG. 1) for the purpose, type and hammer. For this purpose, according to FIG. 3 an execution

fetch back and the hammer shown in its latching example with three selector magnets, with

to guide slot 9 against the centrifugal force or expediently the impact surface of the ham-

to keep. Appropriately, several 30 mer approaches 17 were divided into 17 ', 17 "steps, see above

Leaf springs connected to a segment 5 '. that each magnet armature mass 21 with a certain

The active position of the print hammer is corresponded by the partial approach of the print hammer,

a stationary outside the type drum 1 in this way, the security is propor-

brought selector magnets 18 to the extent that "tional to the number of magnets arranged

by the selector magnet on the step approaches 17 of the 35 borrowed enlarged.

Print hammer 8 can act to, if necessary, in an arrangement of two or more

to move one of the print hammers into its effective position.

push. storage space depending on the bit combination

The circulation of the printing types 2 and thus also that of the individual characters assigned, for example

Print hammer 8 is a magnet by a per se known fo- 40 all characters that are in the first bit

electrical or inductive transmitter device with the track one bit, a second magnet those

synch the connected electronic storage unit that has no bit in the first bit track,

chronized. To move a certain alike for security against collision of the

The pressure hammer in its effective position is the magnet 18 armature mass 21 with the following hammer

with one on the hammer or type circulation set 17, 17 'or 17 ", the hammer is driven by the

speed coordinated phase shift, magnet armature accelerated abruptly, in such a way,

stimulates as soon as the relevant print hammer 8 moves in that the magnet armature upon impact with the hammer

its predetermined suitable position for anchor merger approach its kinetic energy almost completely

mass 21 is located, the latter transferring the print hammer dig to the hammer,

jerkily accelerated at the appropriate moment. 50 Appropriately, according to the construction

Such a print run according to FIG. 4 hammer one at bearing point 22 now protrudes with its conical part 13 'in front of ordered leaf spring 23 with at its outer end one of the tusks 16, the hammer in Rieh- corresponding to the Magnetkemansätze 24, 25 austung is accelerated to the pressure zone 7. Since the balanced anchor mass 21 is used for the application of the shock wheel 14 brought in connection with the type drum 1 55, the one at rest, but attracted to it Hammer and print type as infinite magnet armature the dashed position 19 in Considered large mass and the tusk as elastic - a certain distance 26 outside the pressure shear Schwinger can be viewed, hammerbahn occupies. When pressed against it According to the law of impact hammer and type, the anchor mass 21 hits the pressure hammer 8 almost twice the speed of rotation of the shock 60 and pushes the latter into its working position while tooth accelerated, whereby the shock in turn the balanced anchor mass 21 itself by virtue of the Temporally out of phase with the actual pressure oscillation elasticity of the leaf spring 23 backward time takes place so that the printing type is thrown exactly into the and thus not into the print hammer pressure zone 7 to the stop on the platen 6 can easily re-enter.

is enough. The type of printing and the printing hammer move 65 This is based on the time for a change

mer on a relative path, the direction of which is determined by the running phase of 25 ms and for a preparatory

Hammer speed and the speed of the type phase of 20 ms, the time minimum between

pentrommel is determined on the printing plane 7 too. two characters to be printed also equal 20 ms

Γ 5491959

Ι ίο

cheats; if immediately after the pressure of the first hammer 8.

ZelclieiisV Üäs Hern Wähiniagnbteii 18 temporally removed from the area of the thrust wheel 14. By the effect

next _r standing characters next to the selection of the beini imprint, resulting recoil as well as

pending: Is, on the other hand, the, following character, which will become due to _i the action of the leaf spring 5

Pressure should be selected;, furthest from 5 pressure type 2 and hammer 8 in their starting position.

If the selector magnet is removed, then the time limit is returned. The Hammer8 is thereby through a

iritmi with 2ö_-j-.25 = 45 ms; with the mean time stationary on tread 27, which is immediately behind

between two, characters then (20 + 4S) ¹ Zi = Si ₁ SmS the pressure zone is located, in addition to the outside in

as well as the, middle Dmckfrbqubnz 30.8 characters per its, ineffective length printed back,

Second. ......... ¹⁰ Geinäß der ί? i g. 5 a simplified execution

For a better understanding, an example of the printing process of the drive by means of toothed belt 28 is shown

described below:. . shown, ^ whose, basic principle is well known per se

The Typütrorfimei i _r is _ in this case with more constant, .sicri äßgr jn the described arrangement advantageous speed at 24dÖ _r Ü / _r miii .. fbtiferend. ärigeitieben: _r rjaft inserts, the latter toothed belt runs, one on iriduktiyer agent or, photoelectric Geberein- 15 .on the dpi. Typpntrorrimelwelle 3.befestigte gear device is the Speicherelfektrönik, in one of the 29 Übe.r _f oie iJmlehkrdllen 30 dasijnit. the shock wheel impulse time, the white JiB iest connected gear wheel 31 corresponding to the gear wheel 18 and a gear wheel 31 in phase relation! the passage d ^ r; Zei ^ hbri reported: the. Stbßr, ä, dwelle 15, also fixed, arranged at coincidence; between ^^ eMerri ^ m ^ memory anliegeri- gear wheel 32. To ground the placement of the belt and a point in the phase as well as the gearbox. largely aiiszü - .. üBs aira {, _- , ^ i} w: - :, Cii ^ ^. ^ in.,; .-. ^. öiJ-. _£ . Cold, is a better pulley 33 in one

Läriglbpii 3Ϊ4 verscHiebbär ahgeprdiiet. .

The jig. 6. and 7 show the drive through.Zahn-Drucktyfe 2. itself. defl shock point zübbwegbn,, wheels, after which a.jparaÜel to the shockwheel shaft geiapreiit dbr Harmner in his effective position, .in dei; He 25 gerte and iii dbir Xypentrpinmelwelle 3 in relation to \ vanglä, ufig JHIt ₁ one of the.stpßzäl | ne 16 of the StpjJra- correct distance intersecting intermediate shaft.35 from dfes 14 iii .touch, kdüimbii muÖ, .which in the bumper Typentromnielwelle übej a. 45 ^C ? - helical teeth with Se | bst ttammbr uiid printing type - against the pair of wheels 36 .driven, which ^ in turn to bbschleuriigt via writing rollers. The 36 moves.

For this purpose 2 sheets of Ze

Claims (1)

Patent claims: 1. Mail merge unit with a rotating shaft mounted on a shaft that is normal to the printing plane Type drum, which is arranged in a circle on its end face facing the printing plane and has printing types movable against the printing plane, characterized in that that each printing type (2) is assigned a print hammer (8), which by means of a Elongated hole (11) on a circular curved concentric to the type drum shaft (3) the type drum (1) attached axis (10) displaceable in the radial direction and to the type stop (7) is pivotally mounted that also the print hammer (8) by means of an outside of their Movement path arranged selector magnet (18) from a rest position into an operative position are displaceable, the path of movement of the print hammer in its active position the path the tusks (16) of a push wheel (14) intersects and an elastic one between a tusk and the print hammer in the operative position Impact occurs, and that in the direction of movement of the print hammer behind the Shock wheel a stationary run-up bevel (27) is provided through which the active position Print hammers (8) are returned to their rest position. 2. serial printing unit according to claim 1, characterized in that one and or more stationary outside and independent of the type drum (1) arranged selector magnets (18) in front 6. serial printing unit according to claims 1 to 5, characterized in that with the printing types (2) are in permanent operative connection Leaf springs (S) are advantageously connected to form segment sets (5 '). 7. serial printing unit according to claims 1 to 6, characterized in that the control drive from the type drum shaft (3) by means of a toothed belt (28) via a gearwheel (29) fixedly arranged on the type drum shaft and via pulleys (30) on the gear (31) firmly connected to the shockwheel shaft (15) and one likewise on the shockwheel shaft mounted gear (32) takes place, with a further pulley (33) for the purpose Facilitation of placing or tensioning the toothed belt (28) in an elongated hole (34) is slidably attached. 8. serial printing unit according to claims 1 to 6, characterized in that one parallel to Shockwheel shaft (15) arranged intermediate shaft (35) via a 45 ° helical gear pair (36) in Drive connection with the type drum shaft (3) is, with a pair of spur gears (37) the Forms drive from the intermediate shaft (35) to the shockwheel shaft (15).