SU491829A1

SU491829A1 - Recording device for registering instrument

Info

Publication number: SU491829A1
Application number: SU7402015256A
Authority: SU
Inventors: С.А. Шмитт; В.М. Дубков
Original assignee: Предприятие П/Я А-7141
Priority date: 1974-04-12
Filing date: 1974-04-12
Publication date: 1978-02-05

Description

1one

Изобретение предназначено дл записи и автоматической Записи чернилами при помощи пера-при наличии контакта- между записываю1дим элементом и диаграммной бумагой, при Э.ТОМ резервуар с пишущей жидкостью должен находитьс над диаграммой .The invention is intended for recording and automatic recording with ink using a pen — with contact — between the recording element and the chart paper, and at that time, the reservoir with writing fluid should be above the diagram.

Известно пишущее устройство дл регистрирующего прибора, состо щее из пера и резервуара дл пишущей жидкости, имеющего отверстие дл подачи жидкости к перу и капилл рное отверстие дл подачи воздуха в резервуар.A recording device for recording equipment is known, consisting of a pen and a reservoir for writing liquid, having an opening for supplying a liquid to the pen and a capillary opening for supplying air to the reservoir.

Однако в известном устройстве в услови х измен ющейс температуры не обеспечиваетс посто нное давление в резервуаре, а при большом препаде температуры пишуща жидкост может быть вытеснена из резервуара через отверстие дл подачи воздуха.However, in a known device, under conditions of varying temperature, there is no constant pressure in the tank, and with a large temperature differential, the writing fluid can be forced out of the tank through the air inlet.

Дл обеспечени посто нного давлени в резервуаре дл улучшени подачи жидкости к перу з предлагаемом , устройстве в дне резервуара выполнен сообщающийс с атмосферой горизонтально расположенный капилл р , а отверстие дл подачи воздуха расположено не выше отверсти дл подачи жидкости к перу и сообщаетс с капилл ром в дне. Кроме того, в резервуаре может быть расположен поплавок с острыми кррмками .To provide a constant pressure in the tank to improve the supply of fluid to the pen, the device at the bottom of the tank is made of a horizontally arranged capillary that communicates with the atmosphere, and the air inlet is located no higher than the opening for the supply of fluid to the pen and communicates with the capillary in the bottom . In addition, in the tank can be located float with sharp krrmki.

На фиг. 1 изображено предлагаемое устройствоf вид спереди ; на фиг. 2 - то же, вид сбоку; на фиг. 3 - разрез А-А на фиг. 1.FIG. 1 shows the proposed device front view; in fig. 2 - the same, side view; in fig. 3 shows section A-A in FIG. one.

Пишущее устройство состоит изThe writing device consists of

резервуара 1 и-пера 2. Резервуар герметично закрыт пробкой 3 и в нем помещен поплавок 4.tank 1 and pen 2. The tank is hermetically closed by a stopper 3 and a float 4 is placed in it.

В дне резервуара выполнен капилл р 5, сообщанмциКс с одной стороны с атмосферой, ас другой через отверстие 6 - с резервуаром. Пунктиром показан капилл р 5 в месте его соединени с отверстием б. КогдаAt the bottom of the tank there is a capillary p 5, connected with the atmosphere on one side, and the other through the opening 6 with the tank. The dotted line shows the capillary 5 at the point of its connection with the hole b. When

резервуар заполнен жидкостью и гакрыт пробкой, пишуща жидкость поступает через отверстие б в капилл р 5 и заполн ет его до тех пор, пока сумма давлений в резервуаре и столбаthe reservoir is filled with liquid and is closed with a stopper; the writing fluid enters through the b port in the capillary 5 and fills it until the sum of the pressures in the reservoir and the column

жидкости, koTOpyRT может подн ть капилл р 5, не окажетс равной атмосферному ..liquids, koTOpyRT can raise the capillary 5, will not be equal to the atmospheric ..

Claims

As the ambient temperature rises, the writing fluid and the air in the reservoir heat up. the pressure in the tank increases and the capillary fluid flows again until the pressure in the tank is equalized. In the event of a decrease in the temperature or the flow rate of the liquid during recording, the liquid that is removed by atmospheric pressure from the capillary enters the reservoir. In case of renewed consumption. liquid (production of the record), it again goes from the capillary to the reservoir, the voir finally comes the moment when the young one completely comes out of the capillaries for 5 and the orifice 6. Continuing the flow of the liquid creates an even greater negative pressure in the reservoir, because of this air it begins to flow through the capillary p 5 into the reservoir, forming bubbles of rivers in the liquid. At a certain critical size (it depends on the diameter of the hole) the bubble pops up. The pressure in the reservoir somewhat increases, as a result, under the action of capillary forces, part of the fluid enters the hole b and the capillary. In order for the force of the liquid to be drawn at different quantities in the capillary, the latter is horizontal. Thus, a constant pressure of less than atmospheric pressure is always maintained in the tank. . . Puzzas Ghazu. For various reasons, formed in a liquid, grouped around the sharp edges of the float 4. Due to the sharp edges, the bubbles have an irregular (non-spherical) shape, which contributes to the occurrence of uneven stresses in their surface film, due to which they quickly burst. Claim 1. A recording device for a recording device, consisting of a pen and a reservoir for a recording fluid, having an opening for supplying a fluid to the pen and a capillary opening for supplying air to the reservoir, in order to ensure constant pressure In the tank to improve the supply of liquid to the pen, in the bottom of the tank there is a horizontally arranged capillary connected to the atmosphere, and the air inlet is not located outside the supply hole of the fluid to the pen and communicates with each other. Fig rum in the day.

2. Device According to Clause 1, refer to the fact that the float with sharp crowns is located in the tank.