SU947885A1

SU947885A1 - Tape driving device

Info

Publication number: SU947885A1
Application number: SU802988142A
Authority: SU
Inventors: Владимир Тимофеевич Затоненко; Виталий Порфирьевич Зайцев
Original assignee: Войсковая Часть 44388-Р/П
Priority date: 1980-09-22
Filing date: 1980-09-22
Publication date: 1982-07-30

Description

Изобретение относитс к вычислительной технике и может быть использовано в устройствах дл записи информации .The invention relates to computing and can be used in devices for recording information.

известны лентопрот жные устройства факсимильных аппаратов, прот г бумаги в которых производитс с рулона посредством шаговых двигателей l.fax machines of fax machines are known, in which paper is produced from a roll by stepper motors l.

Однако при повышении быстродействи шаговых двигателей, имеющих посто нную внешнюю нагрузку, при возрастании скорости работы устройств с неизбежностью необходимо увеличить и потребнуло мощность двигателей. Така тенденци дл шаговых двигателей вл етс противоречивой. Последнее снижает возможности увеличени скорости работы устройств и тем сильнее, чем .выше уровень нагрузки. Сглаживание указанного противоречи достигаетс снижением уровн нагрузки путем уменьшени вли ни на шаговый двигатель момента инерции рулона бумаги.However, as the speed of stepping motors with a constant external load increases, as the speed of operation of the devices increases, it is inevitable that the power of the motors must be increased and required. This tendency for stepper motors is controversial. The latter reduces the possibility of increasing the speed of the devices and the stronger, the higher the load level. Smoothing of this contradiction is achieved by reducing the load level by reducing the effect on the stepper motor of the moment of inertia of the paper roll.

Наиболее близким к предлагаемому вл етс лентопрот жное устройство факсимильного аппарата 2.The closest to the present invention is a tape device of the facsimile apparatus 2.

В нем кассета с рулоном бумаги кинематически св зана с дополнительным Двигателем через зубчатую передачу и фрикционный ролик. При записиIn it, a cassette with a roll of paper is kinematically connected with an additional motor through a gear and a friction roller. When recording

информации в этом аппарате сигнал подаетс на дополнительный двигатель,, который, раскручива кассету с рулоном , сматывает с него требуемый отрезок бумаги и выключаетс . Смотанный отрезок бумаги отрезаетс и подаетс на прот жные ролики, приводимые во вращение шаговым двигателем. Инерционное вли ние бумаги на шаговый двигатель здесь сведено к минимуму .information in this device, the signal is fed to an additional motor, which, spinning the cassette with a roll, winds off the required piece of paper and turns off. The coiled piece of paper is cut and fed onto rollers driven by a stepper motor. The inertial effect of paper on the stepper motor here is minimized.

Однако известное устройство вл етс чрезвычайно сложным и громоздким , что определ етс наличием в нем специальной злектронной системы слежени , управл ющей работой дополнительного двигател и механизмом обрезки бумаги. Это затрудн ет иирокое использование известного ленто20 прот жного, устройства в факсимильных аппаратах. Кроме того, разрезка бумаги во многих случа х вл.четс нежелательной .However, the known device is extremely complex and cumbersome, which is determined by the presence in it of a special electronic tracking system that controls the operation of the additional motor and the paper cutting mechanism. This makes it difficult for the world to use the well-known tape machine in facsimile machines. In addition, paper cutting in many cases of water content is undesirable.

Цель изобретени - повы1:1ечие быстродействи и снижение потребной мощности шагового двигател путем уменьшени вли ни на него момента инерции рулона бумаги.The purpose of the invention is to increase the speed and reduction of the required power of the stepper motor by reducing the influence of the moment of inertia of the paper roll on it.

Claims

The goal is achieved by the fact that, in the device, with the support of the rolling rollers mounted on the base, the stepper motor for the paper tape, the additional motor with the pinion gear on the motor shaft, a balanced relative to its own axis and a spring-loaded two shoulders lever are installed, whose axis is coaxial with an additional motor is fixed on the shaft of the additional motor, on the one end of the two shoulders, and on the other, the pinion gear, which is constantly in engagement with the drive gear An additional engine, a friction roller is attached to the same shaft as the driven gear. FIG. 1 is a diagram of the proposed device, FIG. 2, section A-A in FIG. 1. A tape device containing rollers 1 receiving rotation from a stepper motor (not shown), a cassette 2 and an additional motor 3, kinematically connected by means of a driving gear 4 and a driven gear 5, a friction roller 6 having opportunity to communicate with the cassette 2, two shoulders swivel lever 7, at the long end of which the transfer roller 8 is mounted, the axis 9 of this lever is coaxial with the shaft of the additional motor l 3, driven by gear gear 5 and friction roller 6 by means of a common roller pivotally mounted on the short arm of the pivot arm 7, the spring 10 presses the lever 7 against the stop 11, while there is a gap between the friction roller 6 and the cassette 2, a paper tape 12, mounted on the cassette and loaded between the extension rollers 1, bends around the transfer roller 8 The device works in the following way. When a signal is applied to the stepper motor, the rollers 1 pull the paper, choosing its sagging. Then the paper begins to tighten and, through the front roller 8, acts on the lever 7 by turning it clockwise. The friction roller b makes kinematic contact with the cassette.

2. A continuously rotating motor 3 via gears 4 and 5 and a friction roller 6 transfers the rotation to the cassette. The cassette unwinds and winds paper from the roll, which again forms a loose loop. The effect of the paper on the roller 8 is terminated. The lever 7 spring 10 turns counterclockwise and lays on the stop 11. The friction roller b comes out of contact with the cassette, which stops. When the paper is subsequently tensioned, the cassette is unwound again and unwinds the paper from the roll. The coaxial arrangement of the axis 9 with the gear gear 4 eliminates jamming of the gear in the process of oscillation of the lever 7. Balancing the lever with the elements installed on it relative to its axis of rotation provides minimal tension on the paper during the insertion of the friction roller into kinematic contact with the cassette, contributing to the reduction on the stepping motor of the moment of inertia of the paper roll. The difference in the lengths of the arms of the batten 7 allows, with minimal tension on the paper, to ensure sufficient force to press the friction roller against the cassette to bring it into rotation. The proposed device allows to increase the speed and reduce the required power of the stepper motor in the tape machine of the facsimile apparatus by taking advantage of the free-hanging paper and also simplify the design of the device itself. Claims of the invention: Tape-transfer device containing extension rollers mounted on the base, stepper motor for stretching a paper tape, additional motor with driving gear on the motor shaft, characterized in that, in order to increase speed, it has a balanced relative to its own axis and a spring-loaded two-arm lever, whose axis is coaxial with the shaft of the auxiliary engine, at one end of the two shoulders of the arm is fixed the transmission roller, and on the other side the gear, about finding a conductive meshed with the driving pinion additional engine on the same shaft with the driven pinion, is mounted a friction roller. Sources of information taken into account in the examination 1. The author's certificate of the USSR 714437, cl. G About K 13/26, 19762. Japan Patent No. 51-4368, Cl. .G On K 13/28, published. 1974.