SU908506A2

SU908506A2 - Chill casting machine

Info

Publication number: SU908506A2
Application number: SU802935309A
Authority: SU
Inventors: Алексей Васильевич Дробышевский
Original assignee: Минский Проектно-Конструкторский Технологический Институт
Priority date: 1980-06-05
Filing date: 1980-06-05
Publication date: 1982-02-28

Description

(54) КОКИЛЬНЫЙ СТАНОК(54) COILING MACHINE

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Изобретение относитс к литейному производству, в частности к кокильным станкам.The invention relates to foundry, in particular, to chill machines.

По основному авт. св. № 707687 известен кокильный станок, включающий основание, на котором установлена колонна с поддоном, и формообразующие части кокил , закрепленные на основных подкокильных плитах, св занных с рычагами раскрыти кокил . На колонне установлен с возможностью осевого перемещени стакан с кулачками, взаимодействующими с концами рычагов раскрыти кокил , выполненных Г -образными поворотными, а подкокильные плиты закреплены на других концах упом нутых рычагов шарнирно fl .According to the main author. St. No. 707687 is known for a chill machine, including a base on which a column with a pallet is installed, and forming parts of a chill mold attached to the main tofig plates associated with the levers to open the chill mold. On the column, a cup with cams interacting with the ends of the chill mold levers, made with T-shaped rotatables, is mounted with the possibility of axial movement, and the under-iron plates are fixed at the other ends of the said arms hingedly fl.

В известном кокильном станке при литье деталей типа гильз используют песчаные стержни, которые необходимо фиксировать от всплыти в момент создани искусственного воздушного зазора между отливкой и кокилем. Всплытие стержн происходит потому, что кIn a well-made chill machine, sand cores are used in casting parts such as liners, which need to be fixed from ascending at the time of creating an artificial air gap between the casting and the chill mold. Rod ascent occurs because to

моменту раскрыти кокил на воздушный зазор тверда корочка металла успевает образоватьс только на поверхности отливки, соприкасакицейс с кокилем, в то врем как между стержнем и образовавшейс корочкой металл находитс в жшшой фазе. Фиксацию стержн от всплыти осуществл ют специальным металлическим кольцом, которое перед заливкой устанавливают на верхнюю часть центроto вого стержн и которое своим весом удерживает стержень от всплыти . Однако кольцо мешает заливке металла, его необходимо очищать от заливов, при переливе металла кольцо привариваетс к At the moment of opening the mold, the hard gap of the metal has time to form only on the surface of the casting, in contact with the chill mold, while between the core and the crust formed, the metal is in the upper phase. The rod is secured from floating up by a special metal ring, which, before pouring, is placed on the upper part of the central rod and which, with its weight, keeps the rod from floating up. However, the ring interferes with the pouring of the metal; it must be cleaned of bays; when the metal overflows, the ring is welded to

IS отливке и при съеме его надо отбивать. Перечисленные недостатки, а также наличие ручной операции по установке кольца привод т в конечном счете к повышению трудоемкости и обслужива20 ни и снижению производительности.IS casting and when removing it must be repulsed. These disadvantages, as well as the presence of a manual operation to install the ring, ultimately lead to an increase in labor intensity and maintenance and a decrease in productivity.

Claims

The purpose of the invention is to reduce the complexity of maintenance and increase productivity. This goal is achieved by the fact that the chill machine is equipped with rod clamps, made in the form of levers hinged on the pallet, which are installed so that they can interact with the glass at the time of full opening of the formative parts of the chill mold. FIG. 1 shows a chill mill in the position when the mold is filled and closed, a general view in section; in fig. 2 - the same, the metal mold is opened by the size of the air gap A; in fig. 3 the same, the chill mold is opened completely for the removal of the finished casting; in fig. 4 shows a section BB in FIG. one; in fig. 5 - rod lock. The chill machine contains a base 1, to which brackets 1 2 are fastened, on which the L-shaped levers 3 are hinged. On the L-shaped levers 3, the side-hinged plates 4 with sectors 5 of the chill mold are fixed with hinges. In the center of the base 1, a movable copon 6 is mounted on which a cup 7 is mounted for axial movement, which controls the opening of the mold sectors 5 of the mold. In the upper part of the column 6 there is a fixed subsoil 3, the outer diameter of which is centered on the mold 5 sectors, and a sand core 9 is mounted on the inner surface. In the pallet 8 there are grooves in which clamps 11 of the rod 9 are fixedly fixed to the brackets 10. be two or. In order to influence the latches 11 at the moment of complete opening of the sectors 5, the molds on the glass 7 are set by adjustable stops 12. An actuator is provided for mixing the glass 7 along column 6 (not shown). To ensure free locking of the retainers 11 at the moment of retaining the rod 9, grooves are made on the retainers. Chill machine works as follows. A composite sand core 9 is placed on the fixed pallet 8. In this case, the chuck mold actuator cup 7 is in the uppermost position, and the adjustable stops 12 act on the latches 11 and hold them in the open position, which does not prevent the core from being inserted or the casting removed. After the core 9 has been inserted, the cup 7 is moved to the lower position, with the chill mold 5 sectors being closed, the adjustable stops 12 moving away from the latches 11. The clips 11 rotate on the axes to the rod 9 and with their weight press it to the pallet 8. After pouring the metal into the chill mold the shaping sectors 5 of the mold are placed on the gap A, while the adjustable stops 12 still do not act on the latches 11 and they continue to keep the rod 9 from ascending from their weight. After the casting crystallizes, the formative sectors of the 5 chill mold are diluted completely. stirring the cup 7 to the upper position, with the shears 12 acting on the latches 11 to pull the latter from the rod. Then the casting with the core is removed and the mixture is repeated. The invention makes it possible to increase labor productivity when working on chill machines by approximately 10-15% and expands the field of application of the machines, and also allows them to be used on automatic lines of high productivity of flax. Formula izobetheni Chill machine on author. St. 6 O7687, characterized in that, in order to reduce maintenance labor intensity and increase productivity, it is equipped with rod locks made in the form of hinged levers mounted on a pallet at the moment of complete opening of the forming parts of the chill mold. Sources of information taken into account during the examination 1. USSR Copyright Certificate № 707687, cl. In 22D 15 / O4, 1977.

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