DE1099769B - Bump blower - Google Patents

Description

Counting card punch provided with a test arrangement In punch card technology punch cards have been punched by hand again for a long time and in a well-known manner subjected to a test process, which can also be used to determine whether a Column of numbers, (which should normally only contain a single hole, accidentally there are multiple holes or no holes at all. According to the newer However, development in punch cards has shown that an increasingly larger the increasing proportion of cards that are actually accumulated is no longer created by punching by hand, but rather as sum cards or as duplicated cards (with additional cards if necessary Information) or as automatically sensed and punched information from with conductive Cards marked with pencil (so-called mark-sensing) are incurred. These cards then no longer contain the errors caused by the operator Incorrect holes. However, incorrect holes can still be found in the automatic machines themselves develop. It has been shown that if your percentage is also very high is small, but especially additional wrong holes in one otherwise too perforating column (double perforation) and the lack of perforation in one Gaps (incorrect holes) occur during the one-time punching in the correct Column, but in a wrong metering point location, occurs comparatively rarely.

The detection of double holes or incorrect holes, that is mainly with fast-working punches, where the eighty-column cards be advanced line by line, in question, could be in an obvious manner from Test relays are carried out, but then at least eighty of them would have to be Test relays and the corresponding number of contacts assigned to them are available be, which in addition to a large space requirement for their accommodation also results in a high cost results.

The punch machine according to the present invention eliminates these Defects through the complete elimination of these relays and achieved this through a simple test device that only works each time a punch is set and prepared so that it can be used immediately after the completion of the Punching the card shows whether any punch punches multiple times or not at all, or whether all punches have only been activated once.

This preparatory setting of the test device is carried out by the one that selects a specific punching process and its connection with the drive in a known manner controlling intermediate element during the downward movement of the punch such that during the first downward movement of a punch the intermediate element associated slide brought into a first position and through this a test contact is closed, the opening of which on a second actuation of the punch in the same operation and the resulting movement of the associated slide takes place in a second position. Becomes one of the punches during punching of the card does not move, the assigned intermediate element and that of this controlled slide remains unmoved and thus the corresponding test contact is opened.

Immediately after the last row of holes or card is punched An electrical test pulse is transmitted via the test contacts in series and, if all punches have only been actuated once, a single control relay is energized, to indicate the correct punching of the card. As soon as - also only one of the Test contacts as a result of repeated actuation or failure to actuate the assigned Punch is open, this control relay remains de-energized and lights up a signal lamp, an acoustic signal or the stopping of the machine to thereby indicate the incorrect punching of the card.

The test device is used in conjunction with a known Punching machine then described on the basis of the drawings. It shows Fig. 1 a longitudinal section through a known punching machine in which the testing device is installed according to the invention, Fig. 2 is a section or a view perpendicular to line 2-2 in FIG. 1 on an enlarged scale, Fig. 3 a Partial view .s perpendicular to the line 3-3 in FIG. 2 on a reduced scale, -Fig. 4 shows a side view perpendicular to the line 4 = 4 in FIG. 2. - for better illustration one of the side plates for the attachment of the test device according to the invention, 5 shows a section along the line 5-5 in FIG. 2, FIG. 6 shows the circuit diagram of the machine, FIG. 7 a diagram of the operating times of the various cam contacts and: the cam for resetting the test slide.

The device according to the present invention can be used in connection can be used with any of the known tape punching or card punching machines, preferably but it can be used in connection with card holes, through which punch cards cards that have already been punched can be produced under the control. Since this type of Punching machines is known, only their most important parts are described, so far it is necessary for understanding the present invention.

The punching device contains punch 23 (FIG. 1), which are guided in a stripping plate 25, a further plate 24 and in holes of the die plate 21 so as to be vertically displaceable. At the upper end of each punch 23, an actuating lever 26 is rotatably attached, which is tensioned in the counterclockwise direction by a spring 27 attached to a holding rail 28 and is normally held in the position shown in FIG. The upper ends of the actuating levers 26 are guided in the slots 29 of a comb-like rail 30 when they are rotated about the pin connecting them to the associated hole = punch. The rotation of the operating lever 26 in the counterclockwise direction is limited by .ein axis 32 rotatable pawls 31 which, under the action of springs 33, normally rest with their short arm on the left side surface of a block 34 which is attached to the plate 24 and both the axis 32 and the plate 35 for fastening the springs 33 carries.

each punch 23 or its operating lever 26 is through a Handlebar 40 with the arm 41 of the armature 42 of an associated punch selector magnet PM connected, when excited, the operating lever 26 rotated clockwise will.

At a pivotable about the transverse shaft 45 frame 46 is by means of a Pin 48 attached to a threaded base 49 rotatably. The threaded base 49 is through ; a left-hand and right-hand threaded bolt 59 with the pin 51 of an eccentric housing 52 connected, and the eccentric disk 53 provided in the interior of this housing is attached to the continuously rotating shaft 54. The threaded bolt 59 can by means of his; Hexagon rotated to change the position of the frame 46, and is secured in the desired position in a known manner by locking nuts. On the left edge of the frame 46 is a punch actuating plate 55 (FIG. 1 and 5) fastened, and parallel to this and to the row of punches a peel plate 56 is arranged.

Each vertical column of the card is therefore assigned a punch 23 with an actuating lever 26 and a punch selector V, and the machine therefore contains eighty punches and the associated magnets and other parts.

The shaft 54 (FIG. 1) is driven in a known manner in order to continuously lower and nzuh- the frame 46 as long as the machine is operating. When a magnet P1U is excited, it attracts its armature 42 and rotates the associated actuating lever 26 clockwise through the handlebar 40 so that it engages the left edge of the actuating plate 55 by means of a notch after it has moved a little downwards. With the actuation plate 55 now lying in the notch 60 (FIG. 5), the punch 23 is also moved downwards during its further downward movement and pressed through the card lying between the stripping plate 25 and the die plate 21.

After the magnet P111 has been de-energized and upon the return movement of the frame 46, the spring 27 rotates the actuating lever 26 back into: the position shown in FIG. 1. In the event that the armature 42 remains adhering to the core of the magnet due to remanence, a round nose 61 (FIG. 5) provided on the lever 26 is gripped by the inclined edge 62 of the peeling plate 56 and the lever 26 is thereby rotated counterclockwise and its notch 60 brought out of cooperation with the plate 55.

The pawls 31 (Fig. 1) are provided to prevent the punch from breaking. In earlier embodiments of the punching machines, the movement of the punch operating lever 26 was limited by the slots in the guide rails, and if an operating lever 26 was only partially gripped by the operating plate 56, the operating lever 26 could become jammed and the punch 23 bent as a result. enough to break him. The springs 33 allow a slight clockwise rotation of the pawls 31 when such a case occurs, so that there is a somewhat greater leeway for the actuating lever 26, which is not voidly gripped, and its jamming and the breaking of the punch is prevented.

The rollers 20 and 22 are driven intermittently in such a way that that the card is moved by one corresponding to the distance between two index points Moved away and then stopped while the punch punch through the card be pressed.

The device according to the present invention is above that Punching device arranged and is operated by the punch operating lever 26 controlled during the punch movement. After the punch movement is complete shows whether a card column has double holes or no holes at all received. In general, this facility usually contains a number open contacts, one for each column of the card, by: through a slider is operated. This slide is at the first punch movement by one Tooth moves and closes the associated contact. If there is a second hole in the is punched in the same card column, the slider is punched during the second punch movement moved by a second tooth and opens the associated contact again. In in the event that the punch has not been actuated, the associated slide not actuated and its contact remains open.

As shown in FIGS. 2, 3 and 4, the rail 30 carries a left and a right upstanding side plate 65 and 66, respectively, on which the device fastened to determine whether there is a double hole or a completely punched card column is. An L-shaped rail 67 with side flanges 68 (Fig. 4) is by means of the screws 69 attached to the side plates 65 and 66. On the vertical flange the L-shaped rail 67 is a rail 70 made of insulation material by means of the screwdriver 71 attached, which carries eighty contacts. Each of these contacts 72 consists of one Bundle of elastic contact wires 73 (Figs. 2 and 5) and a fixed contact element 74. The contact wires 73 are pivotable about pins 75 so that they are by their own Elasticity either in contact with the fixed contact elements 74 or against their elasticity can be brought out of contact with these.

The test circuit to be described later requires that these contacts 72 be connected in series, and this is achieved in that the contact elements 74 carried by the insulation rail 70 have a width such that they come into contact with two adjacent contact wire bundles 73 at the same time -en, as Fig.2 shows. Between the pivot points 75 and the contact elements 74 are arranged additional bridging contacts 76, which are also supported by the rail 70 and have a width to two adjacent bridge Kontaktdrahtbünd-E173, which are not bridged together by a contact member 74th As a result of this alternating arrangement of the bridging contact elements 76 and the fixed contact elements 74, the eighty contacts 72 are electrically connected in series.

Each card column is assigned a slide 80, which is in a slot 81 an inverted L-shaped rail 82 is guided. Usually everyone lies this slide 80 with a projection 83 on the nose 84 at the upper edge of the peeling plate 56 an, d_e also carried by the side plates 65 and 66 (Fig. 4): or. at this is fastened by screws 85. Between each slider 80 and your assigned Contact wire bundles; l 73 is a hole in the insulation rail 70 slidable plunger 87 is provided, and as FIG. 2 shows, these are contact plungers staggered in two rows.

A spring 90 attached to the slide 80 and to a retaining strip 91 carried by the rail 82 normally holds the projection 83 of the slide in abutment with the nose 84 of the peeling plate 56 and in such a position in which the lower part of the slide 80 against the Rail 67 rests and the plunger 87 holds the associated contact 72 open. As soon as a punch selector magnet PAT is energized to cause the first movement of a punch 23, the operating lever 26 is rotated clockwise, and its upper hook-shaped end 92 (Fig. 5) engages the lowermost tooth 93 of the associated slide 80, so that in the subsequent downward movement of the operating lever 26 and the punch 23 as a result of the lowering of the plate 25 of the slide 80 by one step, the action of the spring 90 is moved downward. During this movement of the slide 80, its first notch 94, arranged above the projection 83, comes under the nose 84 of the peeling plate 56, and since this notch 94 is deeper than the extension 83, the slide is sufficiently far around by its spring 90 the rail 67 rotated clockwise in order to enable a movement of the plunger 87 to the right under the action of the associated contact wire bundle 73 and thus the closure of the contact 72. The first working movement of the punching device therefore causes the associated contact 72 to close, which now remains closed while the card is punched, except when the same punch is moved again to make a punch.

When the punch returns to its upper position and thereby , the operating lever 26 is rotated counterclockwise, leaves the hook-shaped upper end 92 of which is the notch 93 of the scraper 80 and is located after reaching the home position in correspondence with the second notch 95 of the slide 80. As soon as the punch selector magnet P, 11 is energized a second time the card column would be double-punched (in the case of the present Machine will only punch one hole in each column of cards), and when moving down of the operating lever 26 is through the interaction of its handle-shaped end 92 with the second notch 95 of the slide 80 of the slide by a second step moved downwards so that its <third notch 96 comes under the nose 84. the Notch 96 is the same depth as shoulder 83 so that slider 80 is a Turn the rail 67 slightly in an anti-clockwise direction can, whereby the contact plunger 87 and the contact wire binding 173 moves to the left and contact 72 is opened. A second actuation of a punch opens @dalier again! the contact 72 or puts it back in its basic position.

It can be seen that in the event that any one of the card columns The associated punch was not moved during one punch cycle, too the associated slide 80 is not actuated and therefore the corresponding contact 72 remains open, as shown in FIG. It follows that the contacts 72 are normally open by the first movement of the associated Punch closed; ii and by a second movement of the same punch be opened again and if not operated: g the punch remain open.

After the completion of the punching of a card, it is necessary to return all actuated slides 80 to their basic position and to open the associated contacts 72 again. For this purpose, the inverted L-shaped rail 82 (FIG. 5) is fastened to a pivot shaft 100 supported in the side plates 65 and 66 by means of the screws 101, and an arm 102 pinned to the end of the shaft 100 (FIGS. 1 and 3) ) comprises with its forked end a pin 103 fastened in a two-armed cam follower lever 104. The cam follower lever 104 can be rotated about a pin 105, and its roller 107, which is rotatably seated at the lower end, is fastened by a spring 106 against the end face of a shaft 109 Cam 108 pressed. The cam 108 is rotated clockwise in such a way that after the completion of all punching processes for one card, its raised part 110 hits the roller 107 and the pivot shaft 100 is turned clockwise through the lever 104 and the arm 102 (Fig. 5). turns. During this rotation of the shaft 100, the inverted U-shaped rail 82 engages all of the slides 80 and rotates them slightly in order to rotate either the notch 94 or 96 out of cooperation with the wet 84 so that the slides 80 are lifted by their springs 90 and their projections 83 are brought into contact with the nose 84 again. If one or more of the slides 80 remained in their normal position during the punching processes, then the rail 82 only causes a small rotation of the slides in the counterclockwise direction, but without their projections 83 out of engagement with the nose 84 of the