DE1549832A1 - Arrangement for punching by means of dies containing combinations of holes - Google Patents

Description

Patent attorney

Applicant: Philips Patentverwaltung GmbH.

File No. PKD-865
Registration from »6« September 1967 ·.

"Containing arrangement for punching by means of hole combinations

Matrices "

The invention relates to an arrangement for punching recording media, e.g. punched tape, by pressure waves generated by gas discharges, whereby the recording medium is a limitation of the discharge space and is pressed against a die by the pressure wave.

In known tape punches, the selection of the combinations of holes to be punched is made by activating the corresponding ones Punch. The die, which can be moved for punching, contains all possible holes. When punching with the help of the Pressure waves emanating from gas discharges are replaced by a controllable spark gap.

PHD 865

1.0982O / Q-1 B9- ■

The object of the invention is to improve the punching process using pressure waves when punching closely spaced holes. It is characterized in that the die containing the hole combinations can preferably be guided continuously past the recording medium to be punched, and that there is a controllable spark gap which spans all holes of a hole combination group Move spark gaps, the perforated strip and the die perpendicular to the punching direction relative to one another. This prevents unwanted holes from being created next to the hole to be punched due to the spread of the pressure and the movement of the paper. Better use is made of the pressure waves generated by a spark, since several holes can be punched by one discharge. Fewer spark gaps are therefore required, which considerably simplifies the construction. The discharge path may be relatively long so that the spark absorbs better energy from the discharge circuit. The wear of the hole matrix is distributed over several holes.

The following is an example of the basic arrangement for punching the information holes in a conventional five-channel punched tape described. If one wants to get by with a spark gap and only one discharge per character, then one has to be

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14 mm long sparks can be generated, and all 32 possible hole combinations have to be fed past the punching station in order to punch a character. Conveniently, an arrangement with ? Is used. Spark gaps, namely one! Spark gap for the three information tracks 1, 2 and 3 and the second for the 2 information tracks 4 and 5. If necessary, the second spark gap can also punch the Eact track holes. There are 8 hole combinations for the three tracks. Since the combination "no hole" does not have to be grounded on the die, only 7 different hole combinations need to be fed past the punching station. There are only three for the two tracks 4 and 5. Hole combinations that can be guided past the punching station at the same time as the 7 hole combinations. The two spark gaps must then be able to work independently of one another, i.e. also at the same time for tracks 1, 2 and offered. If the clock hole is also to be punched, the result is the hole combination "only Eaktloch".

The drawing shows exemplary embodiments. They show:

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Fig. 1 the spark gaps with die,

Fig. 2 the development of a die,

3 shows the use of an ignition distributor,

Fig. 4 is a block diagram of the entire device »

The dies can be used to continuously guide the hole combinations past E.g. as a cylindrical tube, disc or band. In Fig. 1, a. Cross section through the principal Arrangement shows, the die MZ is cylindrical. In Fig. 2 the development of the die cylinder MZ is shown, which shows the 11 combinations of holes .. The punched tape paper LS is shown in Fig. 1 in a section perpendicular to its longitudinal extent. Ss lies between the rotating die cylinder MZ and the two pressure-generating working spark gaps, which consist of (one electrode E1 or E2 and the common electrode EO as well as the Insulator I exist. When discharging through these spark gaps, a sliding spark arises on the one facing the punched tape LS Side of the isolator I. The discharge circuit consists of the working spark gap and a capacitor C1 or 02, which is connected to the charging bipoles X1 and X3 or X2 and X4 from the operating voltage U-o is charged, and a switching spark gap SF1 or SF2.

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If pure series operation is used, as is the case with the arrangement of the Lo ciikombinat ions. Fig. 2 is possible, one can get along with a common capacitor C and a lacie two-pole X for both discharge circuits, as the circuit diagram in FIG. 3 shows. The electrodes E1, E2 and EO of the working spark gaps AF1 and AF2 are only shown symbolically here and are each _{bridged with a resistor R 1} or Rp. The resistances R ^ and Rg can already be given by the conductivity of the working spark gaps. They ensure that the full voltage is applied to the switching spark gaps before ignition.

In Pig. 3 is indicated at the same time that one when using of an ignition distributor ZV only requires one ignition generator which has the one required to ignite one of the sustaining spark gaps SPt and SP2 High voltage pulse generated. '

Pig. 4 shows the block diagram of the tape punch. With the help of an electronic control St, which is known in various Type can be executed from the punch command, the input information (data from the data source) and the position of the die cylinder MZ obtained the trigger pulse for the ignition generator ZG-. The position of the die cylinder can e.g. be scanned electro-optically or magnetically. The high-voltage ignition pulse resulting from the trigger pulse arrives

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via the ignition distributor ZV to the relevant iDrigger electrode of the maintenance spark gap. The switching spark gap is ignited and the capacitor discharges via the switching and working spark gap. At the working spark gap, the discharge momentarily (within, for example, 0.2 \ xs) creates such a high pressure (for example a few 100 atm.) That the punched tape is punched. Be punched holes corresponding to the hole combination, which is the discharge time point just on the i ^l s & unkenstre opposite side of the perforated strip. If, for example, holes are to be created in tracks 1, 2 and 5, the discharge must first be ignited via the working spark gap AP2 (electrodes EO and E2) when the 2nd hole combination (Pig. 2) is opposite the working spark gap. Then, when the 9th hole combination is in the punching position due to the rotation of the die cylinder HZ, the discharge must be ignited via the working spark gap AP1 (electrodes EO and E1).

Fixed Gieit spark gap also known point gaps can be used, in which electrodes or insulator or both are movable to reduce the erosion of electrodes and insulator or to prevent it entirely. Especially with these relatively complicated ones Spark gaps means the extension of the spark gaps made possible by the invention and the reduction of the

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required number of spark gaps a significant simplification of construction. Known discharge circuits can also be used, in which switching and working spark gaps have a Forming an unity. In order to ensure that the sliding spark gaps are easily ignitable, i.e. to obtain low breakdown voltage with relatively long sparks, It is well known that semiconductors are used for the insulator part on which the spark is supposed to slide.

In the simplest case, the paper feed takes place gradually., Es however, it is also possible to work with continuous paper feed. The punching location is then not fixed, but varies depending on the situation after the hole combination to be punched within the distance between two successive hole combinations.

The punched-out pieces of paper that fly away at high speed, are removed by baffle plates in the die cylinder led out. You can also use flowing air for this purpose.

Patent claims:

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Claims (1)

1 54Ü832 Patent claims: 1. Arrangement for punching recording media, e.g. punched tape, by pressure waves generated by gas discharges, the recording medium forming a boundary of the discharge space, and by the pressure waves against a die the is pressed, characterized in that the die containing / hole combinations is preferably continuously guided past the recording medium to be punched, and that a controllable spark gap is present which spans all holes of a hole combination group. 2. Arrangement according to claim 1, characterized in that several juxtaposed IT spark gaps are provided. 3. Arrangement according to claim 1 or 2, characterized in that the die containing the hole combinations is designed as a roller. 4. Arrangement according to claim 1 or 2, characterized in that the die containing the hole combinations is designed as a disc. ^109820/0159 5. Arrangement according to claim 1 or 2, characterized in that the die containing the Loehkombinations is designed as a band. 6. Arrangement according to one of claims 1 to 5, characterized in that the hole combination groups are arranged in parallel on the die and that the ihinkens tr corners can ignite at the same time. 7. Arrangement according to one of claims 1 to 5 » dadiirch characterized in that the Lochkonbinati _> onsgruppen are arranged one after the other on the die. 8. Arrangement according to claim 7, characterized in that only one discharge capacitor is provided for all spark gaps. 9. Arrangement according to claim 7 or 8, characterized in that working and switching spark gaps and only one ignition pulse generator are provided through which the switching spark gaps can be triggered via an ignition, distributor rigidly coupled to the matrix movement. . BATH ORIGINAL 108820/0151 - 1ο - 1ο. Arrangement according to Claims 9 _9, characterized in that working and switching spark gaps form a unit. 11. The arrangement according to claim 1 or one of the following, characterized in that! Funk ens tr eck s are used in which the electrodes and / or the insulators are movable. 12. Arrangement according to claim 1 or one of the following, characterized in that the trigger pulses for triggering the ignition pulse generator can be derived from signals generated by means of a control disk or roller rigidly coupled to the die movement. 13. Arrangement according to claim 12, characterized in that the recording medium can be punched during the movement, for example during continuous passage, in that the elements triggering the SignsLe are arranged offset relative to the hole combinations according to the movement of the recording medium during a die revolution. 109820/015 * Empty soap