SU924727A1 - Printing device - Google Patents

Description

one

The device touches the printing device; intended for typewriters, computer input and output devices and for other printing type recording devices.

Printing devices are known that contain a plurality of levers, to each of which a printing element is rigidly attached - a two-character letter block that strikes the color tape leaving a certain impression on the printed text carrier.

The disadvantages of these printing devices are that they have a limited amount of operational characters, a set of printing elements cannot be replaced, which means that very often the printed text needs additions by hand, either from the letters of the other alphabet, or from - for special signs and complicated devices in general.

Also known are printers with one printed element carrying a certain set of printed characters and decorated in the form of a sphere or disk, and this element can be replaced manually by another — of the same type, but with a different set of characters.

The drawbacks of the known printing devices are that the replacement of the printing elements takes place manually, which takes time, especially when the printed text requires frequent alternation of characters from different printing elements, and besides toro these printed elements are complex in design and are very expensive. in production.

The purpose of the invention is, by creating such a device that would work with one or a plurality of automatically replacing and relatively cheap multi-valued printing elements, would contain a small number of mechanical components and would have higher operating performance. This goal is achieved by the fact that in a device containing a printing unit with a setup manipulator, a percussion unit and a support surface, the printing unit has a cassette in which one or more printing elements and a setup manipulator are used for mechanically setting up the selected printing element under Cassette mounted manipulator. For magnetic adjustment, a linear stepped electric motor is integrated in the stator of which the selected printing body (element) is placed. The printing elements are made of plastic and each of them is elastic, with two parallel surfaces. Parallel surfaces can be planar. On one of the surfaces there are printed signs built in rows and columns. When mechanically adjusting the printing element, holes or protrusions are fixed in its carrier part for fixed gripping by the manipulator. When magnetic adjustment of the printing element in its carrier part is built on at least one plate of highly coercive magnetized material. In the magnetic field of the printed element, the plastic from which it is made may contain a magnetizable filler. The carrier part of each printing element can be framed as a separate element, rigidly attached to the printed one. The shock unit contains one or more hammers. On the underside of the cassette, there is at least one toothed comb, which, coupled with a gear wheel mounted on the drive shaft, performs the corresponding operation. The mechanical positioning manipulator of the selected printed element is designed in the form of two forks, in each of which there is a spring rigidly connected with one end to the fork, whereas at its other 7 end there is a knob and in the middle there is a protrusion. Along the body of the manipulator, a toothed comb, coupled with a gear wheel, is mounted (m on the drive shaft. Figure 1 shows the proposed device, vertical section; figure 2 - cassette, top view; FIG. 3 - section A -A in Fig. 2} in Fig. - section B-B in Fig. 2) in Fig. 5 - printed element and manipulator, front view} in Fig. 6 - the same, side view on Fig. 7 - node I on figob, enlarged section; in FIG. 8 - a printing element with a plate. The printing device contains a printing unit with a cassette 7, a shock unit 3 and a manipulator 2 for mechanical positioning (adjustment) of the chosen printing element 1 mounted on the carriage 12. For the magnetic adjustment of the chosen printing element 32, instead of the manipulator 2 for mechanical adjustment, a linear step is embedded electric motor (not specified). In a printed block containing a cassette 7, there are in a certain order a plurality of printing elements 1 containing several alphabets, each alphabet in several fonts, and, in addition, various sets of special characters — technical, mathematical, etc. The cassette 7 is mounted on a carriage 12 The gears 11, which are mounted on the shaft 10, engage with the toothed ridges 26 of the cassette 7 which are thus fixed in the direction perpendicular to the roll 5. The mechanical adjustment manipulator 2 is between the guide rollers 13 and the gear roller. forest E, worn on the shaft 8, which fix it in a vertical position. Impact unit 3, cassette 1C for color tape, cassette 7, manipulator 2, as well as gears 9 and 11 with rollers 13 carried by carriage 12. Impact unit 3 contains one or many hammers, the number of which may be equal to the number of character columns in the printed element. In another case (not specified) the shock unit has only one hammer. The structural elements of the printing element is a frame 21, which covers the plate (or plates) of suitable elasticity, located with one of its

the sides (sides) of the printing marks 22, the apertures 23 providing for a fixed grip of the printing element 1 by the mechanical adjustment paddle, as well as an embedded plate plate 33 for providing magnetic adjustment. The printing element is made of plastic which may contain suitable magnetizing filler to provide

magnetic set-up.

The cassette 7 is decorated with four walls, lightweight windows and a bottom with a hole that provides access located under the cassette.

the manipulator 2 (Fig. 1) to the printing element 1 located in the cassette 1. On the inner sides of two opposite walls, the channels 2k with a widening at the beginning, in which the printing elements are fixed, are decorated at a certain step. On the outer sides of the said walls are located

(guiding ribs 25 through which the connection between the cassette and its carriage 12 is carried out. Close to the ribs 25 and parallel to them are the racks 26, which fix and drive the cassette 7 by means of the gear wheels 11 ..

The manipulator 2 is designed for mechanically adjusting the printing elements 1 and in its initial position is located under the cassette. In its upper part, it is designed in the form of two forks 27, fitted with springs 28. The movable end of each spring is designed as a knob 31, the other end is fixed, and in the middle is a protrusion 20 (Fig. 7). Both forks are connected to the housing of the manipulator 2, which has a toothed ridge located longitudinally, as well as two channels located on both sides and providing the connection of the manipulator to the carriage 12 (Fig. 1).

The device works as follows.

With the help of the shaft 8 (Fig. 1) and the gear wheel 9 sliding along it, vertical adjustment of the printing element 1 carried by the manipulator 2 for mechanical adjustment takes place, which perceives the movement of the gear wheel 9 through the rail designed along its length.

With the help of the shaft 10 and the gear wheels 11 sliding along its length, which are engaged with the toothed ridges 2b, the cassette 7 is displaced perpendicularly 5 to the roller 5, as a result of which a specific printing element from the cassette 7 is fed to the manipulator. the carriage 12, the carrier cassette 7, the manipulator 2 and the shock

The 0 block performs horizontal adjustment of the favorites for the action of the printing element.

The output of a specific printing element 1 from the cassette 7 and the inclusion

5 it as an operative printing element is carried out by giving a certain command, as a result of which the manipulator 2 moves downwards in order to release the

0 printed item. This occurs when, without reaching the final lower position, the printed element carried by the manipulator rests on the bottom of the cassette 7, being released (due to the protrusion 20 (Fig.7) fitted with springs 28 and deflecting them with a fixed edge (not specified). from the printed element, the manipulator passes a certain

0, the stroke is down until it reaches its original position, and it remains entirely outside (or below) the cassette 7. At this position of the manipulator 2, the cassette 7 can be moved to supply it with a command specific to the printing body 1, which stops above it after the cassette stops . By moving upward, the manipulator 2 captures a certain printing element 1 and b is set in a static operating position in which the uppermost row of printing characters 22 is on the same vertical stu. Reni under the print row (line, which opens up visual access to the print.

The execution of the command for printing, a certain sign is related to the adjustment of the carriage 12 to a certain number of horizontal steps and the manipulator 2, rising to a certain number of vertical steps (or steps). As a result of this mechanical adjustment, the specific command

the printed mark is stopped at the desired position against the printing row, after which the shock unit 3 strikes the mark. Immediately after printing, the manipulator 2 automatically takes up its static working position, after which it is ready to carry out a new command (signal).

The command to print a certain character from this printing element 32 with an embedded plate (s) 33 is carried out by a linear stepping motor, as a result of interaction of linearly shifting magnetic fields, since the printed elements 32 are moved and fixed in the magnetic space of the stator of the specified motor in them are plates (plates) 33 or the magnetic properties of the filler of plastic from which each printed body (element) is made. 32.

Advantage. the invention consists in the fact that it enables the creation of simplified printing devices of various purposes, containing few mechanical components, which are distinguished by higher operational indicators and work with a large number of printing characters — several letters, fonts, mathematical, technical and other special characters.

Claims (16)

1. A printing device comprising a printing unit with a setup manipulator, an impact unit and a support surface, characterized in that the printing unit has a cassette in which one or more printing elements and a setup manipulator are placed. 2. The device according to Claim 1, characterized in that, for the purpose of mechanical adjustment, a manipulator is mounted under the cassette, 3. The device according to claim 1, characterized in that for magnetic commissioning a linear stepper motor is built in, in the stator, which is placed the selected printing element. C. The device according to claim 1, which is based on the fact that the printing element is elastic, with two parallel surfaces. 5. The device according to claim 4, about tl and may be the fact that parallel surfaces have the form of planes. 6. The device according to PP.4 and 5, differing in the fact that the printed characters are decorated with the printed element or embedded in it, and they are located on the same surface in rows and columns. 7. The device according to paragraphs. - 6, similar to the fact that the printing element is made of plastic. 8. The device according to PP.2,4-7, differing from the fact that when 5, the mechanical adjustment of the printing element in its carrier part is provided with holes or protrusions for fixed gripping with the manipulator in order to adjust the position. 0 9. The device according to paragraphs 3 - 7, characterized in that during the magnetic adjustment of the printing element, at least one plate made of highly coercive magnetized material is embedded in its carrier. 10. The device according to PP.2-7, which is distinguished by the fact that the carrier part of the printing element is framed as a separate element, which is attached to the printed characters. 11. The device according to para. 3 - 7, which is similar to the formation. the mass of which the printed element is made contains magnetizing and and with a filler, 12. The device according to PP, 1-11, differing in that the shock unit contains one or more hammers. 13. The device according to PP.2 and 8, O T, and that the cassette has at least one toothed ridge, by means of which the wheel mounted on the drive shaft is engaged. 1. A device in accordance with Claims 2, 4, 8 and 9, characterized in that the manipulator for mechanical adjustment of the selected printing element has two forks connected into one whole. 15. The device according to n.lt, about tl and 55 is caused by the fact that in each fork there is a spring connected at its one end rigidly with a fork, at the other end it has a shaped: knob, and in the middle part of the said spring there is a protrusion. 16. The device according to PP.2, 8, 9, and 15, different 921172710 the fact that longitudinally to the case of the manipulator of the torus is designed a toothed comb coupled with a gear wheel mounted on the drive shaft. Fig 3 6-6 H-w-fiTiHl I-1-iMti Жтг1- Н hc4 | -1-f IJIUJIJ -27 W -28 6 FIG. 6 B2 H D5 FIG. eight