SU732994A1

SU732994A1 - Tape transport mechanism

Info

Publication number: SU732994A1
Application number: SU782599210A
Authority: SU
Inventors: Владимир Михайлович Барцалкин; Иван Владимирович Ешан; Михаил Николаевич Струсовский; Адриан Георгиевич Цымбаларь
Original assignee: Производственное Объединение "Виброприбор"
Priority date: 1978-04-04
Filing date: 1978-04-04
Publication date: 1980-05-05

Description

1one

Изобретение относитс к области приборостроени и может быть использовано в аппарутуре магнитной записи, где привод ленты осуществл етс непосредственно за рулон .The invention relates to the field of instrumentation and can be used in the magnetic recording equipment, where the tape is driven directly by the roll.

Известен лентопрот жный механизм (ЛПМ), где привод магнитной ленты (МЛ) осуществл етс не традиционным ведущим валом с прижимным роликом, а одним лишь пассиком, охватывающим оба рулона МЛ, расположенные на бобинах, установленных в одной плоскости на параллельных ос х 1 . юA tape drive mechanism (LPM) is known, where the magnetic tape (ML) is driven not by a traditional drive shaft with a pressure roller, but by a belt only, which covers both ML rolls located on reels mounted in the same plane on parallel axes x 1. Yu

Этот привод потребл ет мало энергии, но МЛ прот гиваетс неравномерно, что приводит к сбою записываемой информации.This drive consumes little energy, but the ML is unevenly distributed, which leads to a failure of the recorded information.

Известен ЛПМ, содержащий расположенные в одной плоскости на параллельных ос х бобины с рулонами магнитной ленты, первую пару направл ющих роликов, один из которых установлен между рулонами МЛ, а другой - вне зоны рулонов, эластичный пассик, помещенный на эти ролики, вторую пару направл ющих роликов, формирующих 20 пр молинейный участок МЛ, и электродвигатель 2.The known LPM contains in the same plane on parallel axes reels with rolls of magnetic tape, the first pair of guide rollers, one of which is installed between the rolls ML, and the other outside the zone of rolls, the elastic belt placed on these rollers, the second pair rollers, forming a 20 straight linear section of the ML, and an electric motor 2.

Недостаток ЛПМ - довольно значительные колебани скорости движени МЛ.The lack of LPM is quite significant fluctuations in the speed of movement of the ML.

Целью изобретени вл етс уменьщение колебаний скорости движени МЛ.The aim of the invention is to reduce fluctuations in the speed of movement of the ML.

Цель достигаетс тем, что ЛПМ снабжен дополнительным пассиком, помещенным на ролик первой пары, который установлен вне зоны рулонов, и на ролик второй пары , который св зан с электродвигателем, при этом оба последних ролика выполнены со щкивами.The goal is achieved by the fact that the LPM is provided with an additional belt placed on the roller of the first pair, which is installed outside the rolls area, and on the roller of the second pair, which is connected with the electric motor, while both of the latter rollers are made with hooks.

На чертеже показана схематично конструкци ЛПМ.The drawing shows a schematic of the structure of the LMU.

На параллельных ос х 1 и 2 расположены бобины 3 и 4, на которые помещена МЛ 5. Эластичный пассик 6 св зывает между собой ролики 7 и 8. Ролик 8 находитс ближе к роликам 9 и 10. Ролик 9 св зан с роликом 7 посредством пассика 11, помещенного на щкивах 12 этих же роликов. Электродвигатель 13 соединен с роликом 9 через механизм 14. На бобинах же расположены рулоны 15 и 16 МЛ 5. Ролик 8 установлен между рулонами , а ролик 7 - вне зоны рулонов. Ролики 9 и 10 формируют пр молинейный участок МЛ 5.On parallel axes x 1 and 2 there are reels 3 and 4 on which ML 5 is placed. The elastic belt 6 connects the rollers 7 and 8. The roller 8 is located closer to the rollers 9 and 10. The roller 9 is connected to the roller 7 through the belt. 11, placed on the shkivy 12 these same rollers. The motor 13 is connected to the roller 9 through the mechanism 14. On the reels, rolls 15 and 16 ML 5 are located. The roller 8 is installed between the rolls, and the roller 7 is located outside the rolls area. Rollers 9 and 10 form a straight line segment of ML 5.

Claims

When the motor is turned on, roller 9 comes in rotation, which, through belt 11, transmits rotation to roller 7, and the latter rotates roller 8 through belt B. Due to the frictional contact of roller 8 with the rolls, the latter begin to rotate and the ML starts to move. It should be noted that a sufficiently large angle of coverage of the roller 9, as well as the presence of compensation due to the accelerated transfer between the rollers 9 and 7, the effect of stretching and slippage of the belt 6 make it possible to obtain a very high stability of the speed of movement of the ML. Improving the uniformity of movement of the ML allows not only to extend its service life, but also to increase the reliability of the recorded and reproduced information. However, the described LPM has low energy intensity. The invention of the Tape mechanism, containing in the same plane on parallel axes of a reel with rolls of magnetic tape, the first pair of guide rollers, one of which is installed between the rolls of magnetic tape, and the other - outside the rolls, the elastic belt placed on these rollers a second pair of guide rollers forming a straight-line section of the magnetic tape and an electric motor, characterized in that, in order to reduce fluctuations in the speed of movement of the magnetic tape, it is provided with an additional pass placed on the roller of the first pair, which is installed outside the roll zone, and on the roller of the second pair, which is associated with the electric motor, with both of the latter rollers being made with hooks. Sources of information taken into account in the examination 1. US patent number 3692255, cl. 242-192, 1974.

2. The patent of France No. 2212981, cl. G & B 15/00, 1976 (prototype).

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