SU774951A2

SU774951A2 - Pressure-casting injection die

Info

Publication number: SU774951A2
Application number: SU792745696A
Authority: SU
Inventors: Лев Рувинович Школьник; Михаил Мартынович Толочкин
Original assignee: Предприятие П/Я М-5514
Priority date: 1979-01-29
Filing date: 1979-01-29
Publication date: 1980-10-30

Description

Изобретение относится к области переработки пластмасс.The invention relates to the field of plastics processing.

Известна по основному авт. св.Known for the main author. St.

» 443776 литьевая пресс.-форма для изготовления изделий из полимерных материалов, содержащая неподвижную плиту с жестко укрепленной на ней полуматрицей и подвижную плиту с жестко укрепленными на ней полуматрицей и. |θ наклонной колонкой, на которой установлен знакодержатель со знаком, параллельным плоскости разъема, причем знакодержатель со стороны, обращенной к подвижной плите, выполнен с. наклонной поверхностью, а на неподвижной плите укреплены снабженный отврестием под наклонную полонку вкладыш с наклонной поверхностью, взаимодействующий со знакодержателем, и упоры, расположенные по обе стороны знака перпендикулярно плоскости разъема [1] ."443776 injection mold for manufacturing products from polymeric materials, comprising a fixed plate with a semi-matrix rigidly fixed on it and a movable plate with a semi-matrix rigidly fixed on it and. | θ an inclined column on which the sign holder is installed with a sign parallel to the plane of the connector, and the sign holder on the side facing the movable plate is made with. an inclined surface, and on a fixed plate, a liner with an inclination for an inclined hollow is mounted with an inclined surface, interacting with the sign holder, and stops located on both sides of the sign perpendicular to the plane of the connector [1].

В известной литьевой пресс-форме в начальный момент раскрытия воэмож- 25 но залипание изделия в одной из полуматриц, а это может привести к поломке формующего знака, перемещение которого по наклонной плоскости происходит с момента раскрытия формы.In the well-known injection mold, at the initial moment of opening it is possible to stick the product in one of the half-dies, and this can lead to breakage of the forming sign, the movement of which along the inclined plane occurs from the moment the mold is opened.

Цель изобретения - повышение на'дежности работы формы.The purpose of the invention is to increase the reliability of the form.

Поставленная цель достигается тем чтолитьевая пресс-форма по авт. св. № 443776 для изготовления изделий из полимерных материалов, содержащая неподвижную плиту с жестко укрепленной на ней полуматрицей и подвижную плиту с жестко укрепленными на ней полуматрицей и наклонной колонкой, на которой установлен знакодержатель со знаком, параллельным плоскости разъема, причем знакодержатель со₄стороны, обращенной к неподвижной плите, выполнен с наклонной поверхностью, а на неподвижной плите укреп лены снабженный отверстием под наклонную колонку вкладыш с наклонной, поверхностью, взаимодействующий со знакодержателем, и упоры, расположенные по обе стороны знака перпендикулярно плоскости разъема, согласно изобретению, снабжена подпружиненной плитой с установленными на ней выталкивателями и контртолкателями, взаимодействующими с полуматрицей, укрепленной на подвижной плите.This goal is achieved by the fact that the injection mold by ed. St. No. 443776 for the manufacture of products from polymeric materials, comprising a fixed plate with a semi-matrix rigidly mounted on it and a movable plate with a semi-matrix rigidly mounted on it and an inclined column on which a sign holder is installed with a sign parallel to the connector plane, with the sign holder on the ₄ sides facing fixed plate, made with an inclined surface, and on a fixed plate reinforced liner equipped with a hole for an inclined column insert with an inclined surface interacting with the sign holder cm and abutments disposed on both sides perpendicular to the plate plane of the connector according to the invention provided with a spring-loaded plate with the attached ejectors and kontrtolkatelyami interacting with jaws fixed on the movable plate.

II

Ча фиг·. 1 изображена предлагаемая пресс-форма в продольном разрезе,об3 щий вид;на фиг.2 - сечение Ά-Α на :фиг.1. . „Cha fig. 1 shows the proposed mold in longitudinal section, a general view; in Fig.2 - section Ά-Α in: Fig.1. . „

Литьевая пресс-форма содержит подвижную плиту 1 с жестко закрепленными на ней полуматрицей 2, вставкой 3 оформляющей наружную поверхность изделия 4, и наклонной колонкой 5, на которой установлен перемещаемый по •наклонной направляющей 6 знакодержатель 7 с формующим ί знаком 8,параллельным плоскости разъёма пресс-фор- ₍мы, неподвижную плиту 9 с жестко закрепленными на ней полуматрицей 10, вставкой 11, оформляющей наружную поверхность изделия со стороны неподвижной плиты, и вкладышем 12 с наклонной поверхностью,взаимодействующим со знакодержателем. Вкладыш выполнен с 'отверстием под наклонную колонку и снабжен фиксатором 13, ограничивающим перемещение знакодержате_гля.На полуматрице 10 по обе стороны формующего знака расположены.упоры 14. для снятия изделия со знака.The injection mold contains a movable plate 1 with a semi-matrix 2 rigidly fixed on it, an insert 3 forming the outer surface of the product 4, and an inclined column 5 on which a sign holder 7 with a sign 8 forming ί parallel to the plane of the press connector is mounted -for- ₍ we, a fixed plate 9 with a semi-matrix 10 rigidly fixed on it, an insert 11 forming the outer surface of the product from the side of the fixed plate, and a liner 12 with an inclined surface interacting with the sign holder The insert is made with an opening for an inclined column and is provided with a latch 13 restricting the movement of the sign holder _g. On the half-matrix 10, there are located on both sides of the forming sign. Supports 14. For removing the product from the sign.

Для выталкивания изделий 4 из оформляющей полости внутри вставки 11 размещены выталкиватели 15, закрепленные на плите 16, подпружиненной пружиной 17. Для возврата выталкивателей в исходное положение на плите 16 размещены контртолкатели 18, взаимодействующие с подвижной полуматрицей.To push the products 4 from the forming cavity inside the insert 11 there are ejectors 15 mounted on the plate 16, spring-loaded with a spring 17. To return the ejectors to the initial position on the plate 16 are placed counter pushers 18, interacting with the movable semi-matrix.

Пресс-форма работает следующим образом.The mold works as follows.

При смыкании пресс-формы плита 1 •давит на контртолкатели 18, которые через плиту 16, сжимая пружины 17, отводят выталкиватели 15 в исходное положение, т.е. до уровня оформляющей поверхности в неподвижной вставкеИ.When the mold is closed, the plate 1 • presses on the counter pushers 18, which, through the plate 16, compressing the springs 17, push the pushers 15 to their original position, i.e. to the level of the forming surface in the fixed insert

После формовки ^;иэделия 4 в полости образуемой полуматрицами 2 и 10 и вставками 3, 11, пресс-форму размыкают.' При этом плита 1 с полуматрицей 2 и вставкой 3 отходят от непод-After molding ^; ideas 4 in the cavity formed by the half-matrices 2 and 10 and inserts 3, 11, the mold is opened. ' In this case, the plate 1 with the semi-matrix 2 and insert 3 depart from the unsuitable

вижной полуматрицы 10, а выталкиватели 15 под действием пружин 17 отрывают изделие 4 от оформляющей поверхности вставки 11, одновременно с этим наклонная колонка 5 пресс-формы перемещает знакодержатель 7 с закрепленным формуюшим знаком 8 по наклонной плоскости вкладыша 12 до стопорения фиксатором 13. Знакодержатель 7, совершая сложное движение, свободно извлекает из формующего гнезда изделие, а упоры 14, расположенные на пути перемещения изделий, сталкивают с формующих знаков, влечения изделий форму цикл повторяется.of the movable half-matrix 10, and the ejectors 15, under the action of the springs 17, tear off the product 4 from the forming surface of the insert 11, at the same time, the inclined column 5 of the mold moves the sign holder 7 with the form forming sign 8 fixed along the inclined plane of the insert 12 until it is locked by the lock 13. Sign holder 7, making a complex movement, it freely removes the product from the forming socket, and the stops 14 located on the path of moving the products push against the forming signs, attracting the products, the cycle repeats.

В данной конструкции пресс-формы, снабженной лями изделий, поломка формующих знаков исключена.In this design of the mold equipped with the products, the breakage of the forming marks is excluded.

Наибольшего экономического эффекта от применения изобретения можно достигнуть при изготовлении в полимерных изделиях отверстий с малым сечением, при оформлении которых происходят наиболее частые поломки мующих знаков.The greatest economic effect from the application of the invention can be achieved by making holes in polymer products with small cross-sections, the design of which causes the most frequent breakdowns of washing marks.

После изсмыкают и литьевой выталкиватеФорсв. я что, с целью повышения надеж-After izmykayut and injection pushForsv. What am I, in order to increase reliability

Claims

This invention relates to the field of plastics processing. Known for the main author. St. 443776 injection molds for the manufacture of products from polymeric materials, containing a fixed plate with a semi-matrix rigidly fixed on it and a movable plate with a semi-matrix rigidly fixed on it. an inclined column on which the sign holder is mounted with a sign parallel to the plane of the connector, the sign holder from the side facing the movable plate made with. on a clone surface, and on a fixed slab, a liner with a sloping surface, equipped with a hole under the inclined polonka, interacting with the sign holder, and stops located on both sides of the sign perpendicular to the plane of the connector 1 are reinforced. In the well-known injection molding form, at the initial moment of opening, it is possible for the product to stick in one of the floors. matrices, and this can lead to the hollow of the forming sign, which moves on an inclined plane from the moment the forca opens. The purpose of the invention is to increase the reliability of the form. The goal is achieved flow-chtoliteva mold avt. St. No. 443776 for the manufacture of products from polymeric materials, containing a fixed plate with a papimatrix rigidly fixed on it and a movable plate with a semi-matrix rigidly fixed on it and an inclined column on which the sign holder is installed with a sign / parallel plane of the connector, and the sign holder on the “side facing the fixed plate is made with an inclined surface, and on the fixed plate ukre; lena equipped with a hole for a nazlonny column with a sloping. According to the invention, the surface O interacting with the inoculum and the stops located on both sides of the sign perpendicular to the plane of the connector are provided with a spring-loaded plate with mounted ejector and counter-tappers interacting with a half-matrix mounted on the movable plate. FIG. 1 shows the proposed mold in a longitudinal section, a general view; FIG. 2 - section AA on; FIG. one., . The lithium mold contains under the movable plate 1 with a semi-matrix 2 rigidly attached to it, an insert 3 that decorates the outer surface of the product 4, and an inclined column 5 on which the sign holder 7 is mounted along the inclined guide 6 with the forming sign 8 parallel to the plane press-onNM connector, fixed plate 9 with a semi-matrix 10 rigidly attached to it, insert 11 that forms the outer surface of the product from the side of the fixed plate and an insert 12 with an inclined surface that interacts with the sign holder eat. The liner you. filled with a hole, under the sloping column and provided with a latch 13, limiting the movement of the sign holder. In the semi-matrix 10, on both sides of the shape of the mark, stop 2 is located to remove the item from the mark. In order to push the products 4 out of the outgoing cavity inside the insert 11, the pushers 15 are mounted, mounted on the plate 16 spring loaded 17. To return the pushers to the initial position, the counter pushing devices 18 interacting with the movable semi-matrix were placed 16. The mold works as follows. When the mold is closed, the plate 1 presses the counter pushers 18, which, through the plate 16, compressing the spring 17, retract the ejectors 1b to the initial position, i.e. up to the level of the surface in the fixed insert 1. After forming the Part 4 into the cavity formed by the semi-matrix 2 and 10 and the inserts 3, 11, the mold is opened. At the same time, the plate 1 with the half matrix 2 and the insert 3 moves away from the fixed semi-matrix 10, and the extractors 15 under the action of the springs 17 tear off the product 4 from the decorating surface of the insert 11, simultaneously the inclined column 5 of the mold moves the sign holder 7 with the forming sign 8 on the inclined plane of the liner 12 until it is locked with a latch 13. The sign holder 7, having made a complex movement, freely removes the product from the forming socket, and the stops 14 located on the way of moving the products face the forming signs. After removing the products, the mold is closed and the cycle repeats. In this design of the injection mold provided with product pushers, the breakage of forming marks is excluded. The greatest economic effect from the application of the invention can be achieved in the manufacture of holes with small cross section in polymer products, during the design of which the most frequent breakages of forming marks occur. The formula of the invention. Molney mold on the author. St. (443776, about t and chayusha with the fact that, in order to increase the reliability of the form, it is equipped with a spring-loaded plate placed in a fixed semi-matrix with installed ejectors and co-rollers interacting with a semi-matrix mounted on the movable plate. Sources of information, J taken into account during the examination 1. USSR Copyright Certificate 443776, class B 29 C 7/00, B 29 C 5/00, 04.24.73 (prototype).