SU908514A1

SU908514A1 - Device for removing lower core and pushing a casting out of metal mould

Info

Publication number: SU908514A1
Application number: SU802966956A
Authority: SU
Inventors: Александр Яковлевич Крупин; Петр Васильевич Горьков
Original assignee: Калужский Ордена Октябрьской Революции Машиностроительный Завод
Priority date: 1980-07-28
Filing date: 1980-07-28
Publication date: 1982-02-28

Description

1one

Изобретение относитс к литейному производству, а именно к машинам дл лить 8 кокиль деталей из черных и цветных сплавов.The invention relates to a foundry, namely, to machines for casting 8 chill molds of parts from ferrous and non-ferrous alloys.

Известно устройство дл извлечени нижнего стержн и выталкивани отливки из кокил , содержащее неподвижную подкокильную плиту, силовой цилиндр с направл ющими колонками и выталкиватели 1 .A device is known for extracting a lower rod and forcing a casting out of a chill mold, containing a fixed under-hammer plate, a power cylinder with guide columns and ejectors 1.

Недостатками этого устройства вл етс сложность конструкции и ненадежность ее в работе.The disadvantages of this device is the complexity of the design and its unreliability in operation.

Цель изобретени - упрощение конструкции и повышение надежности.The purpose of the invention is to simplify the design and increase reliability.

Поставленна цель достигаетс тем, что в известном устройстве, содержащем неподвижную подкокильную плиту, силовой -цилиндр с направл ющими колонками и выталкиватели, последние жестко закреплены на головной крышке силового цилиндра, а направл ющие колонны на подкокильной плите.This goal is achieved by the fact that in a known device containing a fixed sub-hammer plate, a power cylinder with guide columns and ejectors are rigidly fixed on the head cover of the power cylinder, and the guide columns on the hammer board.

снабженной упором дл ограничени хода поршн силового цилиндра.equipped with a stop to limit the stroke of the power cylinder.

На чертеже показан силовой механизм дл извлечени нижнего стержн и выталкивани отливки.The drawing shows a force mechanism for extracting the lower rod and ejecting the casting.

Механизм состоит из неподвижной подкокильной плиты 1, направл ющих колонн 2, жестко закрепленных в подкокильной плите, подвижного корпуса силового цилиндра 3. перемещающегоto с по колоннам в направл ющих втулках t. К штоку поршн 5 крепитс стержень 6. Выталкиватели 7 отливки одним концом опираютс в отливку 8, другим - на подвижную крышку 9 кор15 пуса силового цилиндра. Ограничитель движени штока - упор 10 жестко крепитс на колоннах 11 с неподвижной плитой.The mechanism consists of a fixed tuck slab 1, guide columns 2, rigidly fixed in the tuck plate, a movable body of the power cylinder 3. moving to the columns in the guide sleeves t. A rod 6 is fastened to the piston rod 5. The ejectors 7 of the casting are supported at one end in the casting 8, and the other on the movable cover 9 of the power cylinder housing 15. The rod movement limiter — stop 10 is rigidly mounted on columns 11 with a fixed plate.

Устройство работает следующим об20 разом.The device works as follows.

Claims

In the initial position, the ram 3 and the piston rod 5 is in the lower position. The ejectors 7 390 of the casting at one lower end rests in the movable body of the ram 3 and the upper one touches the casting 8. To prepare the chill mold for pouring, pressurized liquid is fed into the lower cavity of the cylinder. The piston rod 5 moves the rod 6 to its original position under the fill. After pouring the chill, the liquid is fed into. the upper cavity under the piston of the power cylinder. Under the action of pressure on the piston, the piston rod 5 moves downwards and removes the rod 6 from the casting 8. The piston rod moves downwards against the stop of the rod 6, while the body of the power cylinder 3 begins to move upward along the guide columns 2 all the way into the columns 11, and the ejector 7 fipn this extrusion casting from the chill mold. After the casting is removed from the chill mold, the pressurized fluid is supplied to the lower cavity of the cylinder, the rod 6 with the piston rod moves upward to its original position for priming, and the cylinder body is moved to its lowest position. The design of the device makes it possible for the forces of one piston of the power cylinder to simultaneously transmit opposing forces aimed at removing the rod down and pushing the casting up. The design of the device is easy to manufacture and has passed the test in the manufacture of chill castings, showed its reliability in operation. Apparatus of the Invention A device for extracting a lower rod and forcing a casting out of a chill mold, containing a fixed chill plate, a power cylinder with guide columns and ejectors, characterized in that, in order to simplify the design and improve reliability, the ejectors are rigidly fixed on the head cover of the power cylinder and the winding columns on the podkokilny plate, equipped with a stop to limit the stroke of the power cylinder. Sources of information and information taken into account during the examination 1. USSR author's certificate t i 76082, cl. B 22 D 29/00, 197.