SU749543A1

SU749543A1 - Apparatus for removing excess of moulding sand from moulds

Info

Publication number: SU749543A1
Application number: SU782600298A
Authority: SU
Inventors: Борис Васильевич Рябов; Василий Васильевич Никитин
Priority date: 1978-04-06
Filing date: 1978-04-06
Publication date: 1980-07-23

Description

Изобретение относится к литейному производству.The invention relates to foundry.

Известно устройство для срезки излишков смеси, содержащее подвижную в вертикальной плоскости каретку с наклонной поверхностью для взаимодействия с формой и с установленным поршневым приводом, на штоке которого укреплен нож [1].A device for cutting excess mixture is known, containing a movable carriage in a vertical plane with an inclined surface for interacting with the mold and with a mounted piston drive, on the rod of which a knife is mounted [1].

Недостаток известного устройства состоит в том, что в его конструкции не предусмотрено удаление срезанной формовочной смеси, а система управления переходом ножа с верхней позиции на нижнюю и наоборот значительно усложнена.A disadvantage of the known device is that its design does not provide for the removal of the cut molding sand, and the control system for the transition of the knife from the upper position to the lower and vice versa is significantly complicated.

Известно также устройство для удаления формовочной смеси с форм, содержащее подвижную в вертикальной плоскости траверсу, на которой установлены режущий инструмент, желоба для удаления сре-^д занной смеси и упор (У,A device is also known for removing the moldable mixture from molds, containing a cross-arm movable in a vertical plane on which a cutting tool is mounted, chutes for removing the mixed mixture and an abutment (U,

Однако наличие в известном устройстве трех электродвигателей, приводного шнека и выполнение режущего инструмен2 та в виде приводного фрезерного барабана делает конструкцию очень сложной и ненадежной в работе.However, the presence in the known device of three electric motors, a drive screw and a cutting tool in the form of a drive milling drum makes the design very complex and unreliable in operation.

Цель изобретения - упростить конструкцию устройства.The purpose of the invention is to simplify the design of the device.

Это достигается тем, что устройство снабжено смонтированными на траверсе с противоположной стороны относительно ножей роликами, режущий инструмент выполнен в вице подвижных в горизонтальной плоскости и установленных в один ; ряд, по меньшей мере, двух ножей, к каждому из которых укреплен одним своим концом соответствующий желоб, другой ‘ конец которого свободно установлен на одном из упомянутых роликов, причем упор имеет Т—образную форму и его поперечный элемент размещен на нижнем торце траверсы, наклонно в сторону ножей * а продольный элемент - между ножами и имеет форму клина.This is achieved by the fact that the device is equipped with rollers mounted on the traverse on the opposite side relative to the knives, the cutting tool is made in the vice movable in a horizontal plane and installed in one; a row of at least two knives, to each of which a corresponding trench is fixed at one end, the other end of which is freely mounted on one of the said rollers, the emphasis having a T-shape and its transverse element placed at the lower end of the beam towards the knives * and the longitudinal element is between the knives and has the shape of a wedge.

На фиг. 1 представлена кинематическая схема устройства (процесс срезания излишков смеси); на фиг. 2 - то же, проз 749543 4 цесс удаления срезанной смеси; нафиг. 3? узел J на фиг. 2', на фиг. 4 - разрез А-А на фиг.2^га фиг, 5 - узел I на ' фиг. 1’, на фиг. 6 - виц по стрелке Б на фиг. 1; на фиг. 7 - виц по стрелке В на. фиг. 2. ¹ In FIG. 1 shows the kinematic diagram of the device (the process of cutting off the excess mixture); in FIG. 2 - the same, prose 749543 4 cess removal of the sheared mixture; nafig. 3? node J in FIG. 2 ', in FIG. 4 - section AA in FIG. 2 ^ ha of FIG. 5 - node I in 'FIG. 1 ', in FIG. 6 - vice along arrow B in FIG. 1; in FIG. 7 - Vice in the direction of the arrow on. FIG. 2. ¹

Устройство содержит траверсу!, прикрепленную к штоку 2 неподвижно установленного цилиндра 3. На направляющих 4 траверсы 1 расположен подвижный в горизон- ₁₀тальной плоскости цилиндр 5, шток 6 которого жестко прикреплен к траверсе 1. К цилиндру 5 жестко присоединен режущий инструмент, состоящий из ножей 7 и 8. К каждому ножу шарнирно прикреплены желоба 9 и 10, опирающиеся на ролик 11, который установлен на траверсе 1.The device comprises a traverse !, attached to the stem 2 is fixedly mounted on the cylinder 3. The guides 4 located crosspiece 1 movable in the horizontal plane ₁₀ tal cylinder 5, the piston rod 6 is rigidly attached to the cross member 1. To cylinder 5 is rigidly connected a cutting tool consisting of knives 7 and 8. To each knife, gutters 9 and 10 are pivotally attached, resting on a roller 11, which is mounted on a crossarm 1.

Траверса 1 внизу, со стороны опоки 12 имеет Т-образный упор, поперечный элемент 13 которого выполнен с уклоном, обеспечивающим уплотнение срезаемой смеси 14, а продольный элемент 15 имеет форму клина и расположен между частями ножа.The traverse 1 at the bottom, from the side of the flask 12, has a T-shaped stop, the transverse element 13 of which is made with a slope that provides a seal for the sheared mixture 14, and the longitudinal element 15 has the shape of a wedge and is located between the parts of the knife.

Между острой кромкой элемента 15 и нижней плоскостью ножа имеется зазор Си, гарантирующий необходимый зазор между ножом и контрпадом опоки. Величина зазора выбирается в каждом конкретном случае в зависимости откачества обработки, контрлаца опок.Between the sharp edge of the element 15 and the lower plane of the knife there is a gap Ci, which guarantees the necessary clearance between the knife and the counterfall of the flask. The size of the gap is selected in each case, depending on the quality of processing, the counterflask.

Работает устройство следующим образом.The device operates as follows.

Подачей сжатого воздуха в поршневую полость цилиндра 3 опускают траверсу 1 на остановившуюся под устройством опоку 12. Цилиндр 5 вместе с ножом при этом находятся в крайнем правом положении. При опускании траверсы Т-образный упор своим продольным эпементом 15 врезается в массу и ложится на ( контрлац опоки 12. После чего сжатый воздух подают в штоковую полость цилиндра и ножи начинают перемещаться влево, поперек опоки, срезая излишки формовочной смеси. Благодаря наклонному расположению поперечного элемента 13 срезаемая смесь, несколько уплотняясь, попадает на желоба 9 и 10.By supplying compressed air to the piston cavity of the cylinder 3, lower the yoke 1 to the flask 12, which stopped under the device. The cylinder 5 together with the knife are in the extreme right position. When lowering the traverse, the T-shaped stop with its longitudinal ephemente 15 cuts into the mass and rests on the flask (counterflag 12. After that, compressed air is fed into the rod cavity of the cylinder and the knives begin to move to the left, across the flask, cutting off excess molding sand. 13 the sheared mixture, slightly condensing, enters the gutters 9 and 10.

При обратном ходе ножей желоба, опираясь на ролик 11, поворачиваются и срезанная смесь самотеком ссыпается в емкость 16 или на уборочный транспортер (не показан).During the reverse stroke of the gutter knives, leaning on the roller 11, they turn and the cut mixture is gravity poured into a container 16 or onto a harvesting conveyor (not shown).

Claims

(54) DEVICE FOR REMOVING THE FORMS OF A FORMING MIXTURE WITH FORMS The invention relates to foundry. A device for cutting off excess mixtures is known, which means a carriage movable in the vertical plane with an inclined surface for interaction with the mold and a piston drive installed, on the stem of which the knife is fixed. A disadvantage of the known device is that its design does not provide for the removal of the cut molding sand, and the knife transition control system from the top position to the bottom position and vice versa is significantly complicated. It is also known a device for removing molding sand from molds, comprising a traverse that is movable in a vertical plane, on which the cutting tool is installed, chutes for removing the cut mixture and stop 2, However, there are three electric motors in the known device, a driving screw and making the cutting tool as drive milling drum makes the design very difficult and unreliable in operation. The purpose of the invention is to simplify the design of the device. This is achieved by the fact that the device is equipped with rollers mounted on a traverse on the opposite side relative to the blades, the cutting tool is designed as moving in a horizontal plane and installed in one; a series of at least two knives, each of which is fixed at its one end with a corresponding chute, the other end of which is loosely mounted on one of the said rollers, the stop having a T-shape and its transverse element is placed on the lower end of the traverse, obliquely in the direction of the knives and the longitudinal element - between the knives and has the shape of a wedge. FIG. 1 shows a kinematic device diagram (the process of cutting off excess mixture)} in FIG. 2 - the same, the process of removing the cut mixture nafig. H useed J in FIG. 2, in FIG. 4 is a section A-A in FIG. 21ra of FIG. 5, a node C in FIG. 1, in FIG. b - vic according to the bolt B in fig. Ij in FIG. 7 - Vits on an arrow In on. 2. The device contains a yoke attached to the rod 2 of a fixedly mounted cylinder 3. On the guides 4 of the yoke 1 there is a horizontally movable cylinder 5, the rod of which is rigidly attached to the yoke 1. To the cylinder 5 there is a rigidly attached cutting tool consisting from knives 7 and 8, to each knife are chamfered trenches 9 and 10, supported on roller 11, which is mounted on traverse 1, Traverse 1 below, on the side of flask 12 has a T-shaped stop, the transverse element 13 of which is filled with a slope providing a seal with ezaemoy mixture 14 and the longitudinal member 15 has a wedge shape and is disposed between portions of the blade. Between the sharp edge of the element 15 and the lower blade of the knife there is a gap Ci-j that guarantees the necessary gap between the knife and the flask counter. The size of the gap is chosen in each particular case depending on the quality o6pa "i; workings, control opok. The device operates as follows. By supplying compressed air to the piston cavity of the cylinder 3, lower the yoke 1 to the side 12 that stops under the device. The cylinder 5 together with the knife is in the extreme right position. Lowering the crosshead, the T-shaped stop with its longitudinal element 15 cuts into the mass and rests on the flask checker 12. After that, the compressed air is fed into the rod end of the cylinder 5 and the blades begin to move to the left, across the flask, cutting off the excess molding sand. Due to the inclined arrangement of the transverse element 13, the mixture is cut, somewhat compacted. falls on the chutes 9 and 10. When the knives return, the gutters, supported by the roller 11, are rotated and the cut mixture is spontaneously poured into the tank 16 or onto a harvest conveyor (not shown). Apparatus of the Invention A device for removing excess molding sand from molds, comprising a traverse, movable in a vertical plane, on which the cutting tool is installed, chutes for removing the cut mixture, and a stop that is equipped with a crossbar mounted on the opposite rail. sides with respect to knives with rollers, the cutting tool is made in the form of moving in the horizontal-4 horizontal plane and installed in one row of at least two knives, each of which is reinforced with At its end there is a corresponding chute, the other end of which is freely mounted on one of the said rollers, the emphasis being T-shaped and its transverse element is placed on the lower end of the crosshead obliquely toward the blades, and the longitudinal element between the blades and has a wedge shape. Information sources, . taken into account during the examination 1. USSR author's certificate N9 5.47280, cl. B 22 C 9/18, 1971,

2. USSR author's certificate No. 402416, cl. B 22 C 23 / GS, 1970.

Xy / y / X / X / XX

F (/ & 3

L-4

/ y.

Fi (.4

yv

. "

-t

/five

/

Fie.7