SU897540A1

SU897540A1 - Casting mould for producing thermoplastic material articles

Info

Publication number: SU897540A1
Application number: SU802909335A
Authority: SU
Inventors: Григорий Иванович Гречушкин; Карл Хаимович Дубов; Марлен Адольфович Шнейдерман
Priority date: 1980-04-14
Filing date: 1980-04-14
Publication date: 1982-01-15

Description

Изобретение относится к переработке пластмасс, а именно к формам для литья под давлением изделий из термопластичных материалов.The invention relates to the processing of plastics, namely to molds for injection molding of products from thermoplastic materials.

Известна форма для литья под давлением изделий из термопластичных материалов, содержащая'неподвижную и опорную плиты оформляющие детали и боковые ползуны для оформления в изделии боковых отверстий, расположенных под прямым углом к линии разъема [13.A known form for injection molding of products from thermoplastic materials, comprising fixed and base plates forming parts and side sliders for forming in the product side holes located at right angles to the connector line [13.

Недостатком известной формы яаля·? ется ограниченность применения, поскольку в такой форме невозможно Изготавливать изделия с боковыми отверстиями под углом отличным от пря-’ мого.The disadvantage of the known form of yaal ·? There is limited use, since it is impossible to produce products with side holes at an angle different from the straight one in this form.

Наиболее близкой по технической сущности и достигаемому эффекту к предлагаемому является форма, содержащая неподвижную плиту с закрепленным в ней наклонным пальцем, соединенную с ней плиту матрицы, подвижную пли- .The closest in technical essence and the achieved effect to the proposed one is a form containing a fixed plate with an inclined finger fixed in it, a matrix plate connected to it, a movable plate.

ту пуансона, размещенный на ней боковой знак с ползуном, имеющим наклонные направляющие и паз, с которым взаимодействует наклонный палец [2that punch, a lateral sign placed on it with a slider having inclined guides and a groove with which the inclined finger interacts [2

Однако в данной форме невозможно изготовление изделий с боковыми пе- _:рекрещивающимйся не под прямым углом углублениями.However, in this form it is impossible to manufacture products with a side _pe-: rekreschivayuschimysya not at a right angle grooves.

Цель изобретения - получение изделий с поднутрениями сложной кон· фигурации, имеющими боковые перекрещивающиеся не под прямым углом углубления.The purpose of the invention is to obtain products with undercuts of complex configuration having lateral overlapping recesses not at right angles.

Указанная цель достигается тем, что литьевая форма, содержащая неподвижную плиту с закрепленным в ней наклонным пальцем, соединенную с ней плиту матрицы, подвижную плиту пуансона, размеценный на ней боковой знак с ползуном, имеющим наклонные направляющие и паз, с которым взаимодействует наклонный палец, она снабжена вторым боковым знаком с ползуном, расположенным в ползуне эThis goal is achieved by the fact that the injection mold containing a fixed plate with an inclined finger fixed in it, a matrix plate connected to it, a movable punch plate, a side sign marked on it with a slider having inclined guides and a groove with which the inclined finger interacts, it equipped with a second side sign with a slider located in the slider e

.897540 первого знака под углом, равным углу наклона второго знака к горизонтали и с возможностью перемещения, причем паз ползуна первого знака выполнен длиной равной ходу второго знака. j.897540 of the first sign at an angle equal to the angle of inclination of the second sign to the horizontal and with the possibility of movement, moreover, the groove of the slider of the first sign is made with a length equal to the stroke of the second sign. j

На фиг.1 изображена форма а сомкнутом состоянии, продольный разрез; на фиг.2 - то же, в момент извлечения второго знака; на фиг.З то же, в момент извлечения обоих знаков. юFigure 1 shows the shape of a closed state, a longitudinal section; figure 2 is the same at the time of extraction of the second character; in Fig. 3 the same, at the time of extraction of both characters. Yu

Форма содержит неподвижную плитуThe mold contains a fixed plate

1, жестко связанную с плитой 2 матрицы, опорную плиту 3 с установленным в ней пуансоном 4 и подвижную плиту 5, пуансона. Первый боковой знак 6 ;s закреплен в ползуне 7, установленном с возможностью перемещения по наклонным направляющим 8, в плите 5 пуансона. Второй боковой знак 9, закг репленный в ползуне 10, установлен ад в отверстии а ползуна 7 первого знака 6. Ползун 10 установлен с возможностью перемещения по наклонным направляющим 11, имеющимися в ползуне 7 , в котором выполнен паз 12с ад длиной, по крайней мере, равный ходу второго знака 9. Наклонный палец 13, осуществляющий боковое перемещение обоих ползунов, закреплен в неподвижной плите 1 и размещен в пазу 14 пол-ад зуна 10 и в пазу 12 ползуна 7. Длина паза 12, по крайней мере, равна ^ходу ползуна 10 для обеспечения полного извлечения из изделия знака 9.1, rigidly connected to the matrix plate 2, a base plate 3 with a punch 4 installed therein and a movable plate 5, a punch. The first side sign 6; s is fixed in the slider 7, mounted for movement along the inclined guides 8, in the plate 5 of the punch. The second lateral sign 9, mounted in the slider 10, installed hell in the hole a of the slider 7 of the first sign 6. The slider 10 is mounted to move along the inclined guides 11 available in the slider 7, in which the groove 12c is made of at least a length equal to the stroke of the second sign 9. The inclined finger 13, performing lateral movement of both sliders, is fixed in a fixed plate 1 and placed in the groove 14 of the half-adzun 10 and in the groove 12 of the slider 7. The length of the groove 12 is at least equal to the slider’s stroke 10 to ensure complete removal of the sign 9 from the product.

За счет этого движение ползуна 7 и извлечение знака 6 происходит только после полного извлечения знака 9· Клин 15, установленный в неподвижной плите 1, фиксирует ползуны в сомкнутой форме.Due to this, the movement of the slider 7 and the extraction of the sign 6 occurs only after the complete removal of the sign 9 · Wedge 15, installed in the fixed plate 1, fixes the sliders in closed form.

В процессе работы материал подается в гнездо, образованное плитой 2 матрицы, знаками 6 и 9, пуансоном 4 и его плитой 5. После отверждения материала производится разъем формы, входе которого наклонный палец 13 перемещает по направляющим 11 в ползуне 7 ползун 1Q и извлекает знак 9 из изделия 16. Вслед за этим, за счет взаимодействия наклонного пальца 13 с ползу ном 7, в пазу 12 осуществляется извлечение из отливки знака 6, После выталкивания изделия из гнезда производится смыкание формы с одновременным перемещением а обратной последовательности боковых знаков в исходное положение.In the process, the material is fed into the socket formed by the matrix plate 2, signs 6 and 9, the punch 4 and its plate 5. After the material is cured, a mold connector is made, the input of which the inclined finger 13 moves the slide 1Q along the guides 11 in the slider 7 and extracts the sign 9 from the product 16. Following this, due to the interaction of the inclined finger 13 with the slider 7, the sign 6 is removed from the casting in the groove 12. After the product is pushed out of the socket, the mold is closed while the side sequences are reversed and in reverse Nakov to its original position.

Использование данной формы позвои ляет упростить технологию изготовления изделий с поднутрениями сложной конфигурации, для изготовления которых в ранее известных формах потребовалась бы дополнительная механическая операция.The use of this form makes it possible to simplify the technology of manufacturing products with undercuts of complex configuration, for the manufacture of which in previously known forms would require additional mechanical operation.

Claims

The invention relates to the processing of plastics, and in particular to molds for injection molding products from thermoplastic materials. The well-known mold for molding products from thermoplastic materials, containing a fixed and base plate, decoration parts and side sliders for forming side openings in the product, which are located at a right angle to the line of the connector 13. A disadvantage of the known form is In this form, it is impossible to manufacture products with side holes at an angle other than straight. The closest to the technical essence and the achieved effect to the proposed is the form containing a stationary plate with an inclined finger fixed in it, a matrix plate connected to it, a movable plate of a punch, a side mark placed on it with a slider having inclined directions sushi and groove, which interacts oblique finger 2. However, in this form it is impossible to manufacture products with lateral intersecting angles that are not at right angles. The purpose of the invention is to obtain products with complex configuration undercuts, having lateral intersections not at a right recess angle. This goal is achieved by the fact that the casting mold containing a fixed plate with an inclined finger fixed in it, a matrix plate connected to it, a puinson movable plate, a lateral sign degraded on it with a slider having inclined guides and a notch with which the inclined finger interacts it is provided with a second lateral sign with a slider located in the slider of the first sign at an angle equal to the angle of inclination of the second sign to the horizontal and movable, with the slit of the slider of the first sign made of a length equal to orogo sign. Hij of FIG. 1 shows the form in a closed state, a longitudinal section; FIG. 2 is the same at the moment of extracting the second character; Fig. 3 is the same, 8 moment of extraction of both signs. The form contains a fixed plate 1, rigidly connected with the plate 2 of the matrix, the base plate 3 with the punch k installed in it and the movable plate 5 of the Punch. The first side mark 6 is fixed in the slider 7 by means of an installation that can be moved along the glued guides 8 in the plate 5 of the punch. The second side mark 9, fixed in the slider 10, is installed in the aperture of the slider 7 of the first mark 6. The slider 10 is mounted for movement along inclined rails 11, which are in the slider 7, in which the groove 12c is at least equal to the stroke the second character 9. The inclined finger 13, which performs lateral movement of both the sliders, is fixed in the fixed plate 1 and is placed in the groove of the pole 10 and S the groove 12 of the slide 7. The length of the groove 12 is at least equal to the stroke of the slide 10 to ensure full of stopping out of the mark product 9 The movement of the slider 7 and the "removal of the mark 6 occurs only after the complete extraction of the mark 9 Wedge 15, mounted in the fixed plate 1, fixes the sliders in a closed one. In the process, the material feeds into the nest formed by the matrix plate 2, signs 6 and 9, punch k and its plate 5. After the material cures, the mold is disconnected, the entrance of which the inclined finger 13 moves in directions 11 in slider 7 slider 10 and extracts the sign 9 from the product 16. Thereafter, due to the interaction of the inclined pin 13 with the slider 7g. In the groove 12, the sign 6 is removed from the casting. After the unwrapping of the slot, the inverse sequence of the side sign is removed. s original position. The use of this form permits one to simplify the manufacturing technology of products with complex configuration undercuts, for which production in previously known forms would require additional mechanical operation. Formula of the Invention Molding form d; 1 I manufacture products from thermoplastic materials, comprising a fixed plate with an inclined finger fixed in it, a matrix plate connected to it, a movable punch plate, a side mark on it with a slider having inclined guides and a groove with which an inclined finger interacts, characterized in that, in order to obtain products c. the undercuts of the puff configuration, having lateral intersecting not direct angles of recess, are provided with a second lateral sign with a slider located in the slider of the first sign at an angle equal to the angle of the sign to the horizontal and movable, with the slit of the slider of the first sign of the second mark. Sources of information taken into account in the examination 1. Molding, molds for parts from thermoplastics. Directory reference. TsNIITEstroymash, M., 1978, p. 179, ris.118a.

2. Molding molds for parts from the plates, Directory Guide, TsNIITEstroymash, M., 1978, p. 179, fig. 188 (prototype).