SU889444A1

SU889444A1 - Casting mould for producing elongated hollow articles from polymeric materials

Info

Publication number: SU889444A1
Application number: SU792826716A
Authority: SU
Inventors: Михаил Иванович Норкин; Игорь Михайлович Норкин
Original assignee: Запорожский Проектно-Конструкторский И Технологический Институт
Priority date: 1979-10-10
Filing date: 1979-10-10
Publication date: 1981-12-15

Description

Изобретение относится к переработке пластмасс в изделия, в частности к литьевым формам для изготовления полых длинномерных изделий.The invention relates to the processing of plastics into products, in particular to injection molds for the manufacture of hollow lengthy products.

Известна литьевая форма для изготовления длинномерных полых изделий из пластмасс, содержащая неподвижную.Known injection mold for the manufacture of long hollow plastic products containing stationary.

полуформу с наклонной колонкой, подвижную полуформу с размещенным в ней и взаимодействующим с наклонной колонкой ползуном с шарнирно установленными на нем оформляющими знаками [13 ·a half-form with an inclined column, a moving half-form with a slider placed in it and interacting with the inclined column with the design signs articulated on it [13 ·

Недостаток известной формы заклю-. чается в том, что возможны повреждения наружной поверхности готового изделия от толкателя в виде царапин, вмятин, сколов, а также возможно заклинивание изделия между оформляющим знаком и толкателем, не гарантирован полый съем изделия с оформляющего знака, так как толкатель совершает прямолинейное движение, а оформляющий знак - по радиусу.The disadvantage of the known form will end up. It is believed that damage to the outer surface of the finished product from the pusher in the form of scratches, dents, chips, as well as jamming of the product between the design mark and the pusher is possible, hollow removal of the product from the design mark is not guaranteed, since the pusher makes a rectilinear movement, and the design the sign is along the radius.

Наиболее близкий по технической сущности к предлагаемому является литьевая форма для изготовления длинномерных полых изделий из полимерных материалов, содержащая подвижную.и неподвижную полуформы, знаки, оформ- 30 ляющие полость в изделии, плиту съема установленную с возможностью перемещения вдоль знака, и средство для перемещения плиты съема [2].The closest in technical essence to the proposed one is an injection mold for the manufacture of long hollow articles made of polymeric materials, containing movable and fixed half-molds, signs forming a cavity in the product, a removal plate mounted to move along the sign, and means for moving the plate removal [2].

Однако з известной .форме необходимо регулировать величину раскрытия полуформ для каждого типоразмера изделия. Причем регулировка хода подвижной поЛуформы должна быть в строгом соответствии с длиной изделия, так как при недостаточном раскрытии формы изделие может не полностью сняться с оформляющего знака, и для окончательного съема используют ручной труд.However, with the known .form, it is necessary to adjust the opening size of the half-molds for each size of the product. Moreover, the adjustment of the movement of the moving half-mold must be in strict accordance with the length of the product, since with insufficient disclosure of the form, the product may not be completely removed from the registration mark, and manual labor is used for the final removal.

Цель изобретения - повышение производительности за счет упрощения наладки формы при переходе на другой типоразмер изделия.The purpose of the invention is to increase productivity by simplifying the adjustment of the form when switching to another standard size of the product.

Поставленная цель достигается тем, что литьевая форма для изготовления длинномерных полых изделий из полимерных материалов, содержащая подвижную и неподвижную полуформы, знаки, оформляющие полость в- изделии, плиту съема, установленную с возможностью перемещения вдоль знака, и средство для перемещения плиты съема, снаб- , жена рамой с направляющими пазами под плиту съема, а средство переме3 щения плиты съема выполнено в виде закрепленного на подвижной полуформе гидроцилиндра, причем плита съема закреплена на штоке гидроцилиндра, знаки - на раме, а на плите съема и раме выполнены продольные пазы. _This goal is achieved by the fact that the injection mold for the manufacture of long hollow articles made of polymeric materials, containing movable and fixed half-molds, signs forming the cavity in the product, a removal plate mounted to move along the sign, and means for moving the removal plate provided , the wife has a frame with guide grooves under the removal plate, and the means for moving the removal plate is made in the form of a hydraulic cylinder mounted on a movable half-mold, and the removal plate is fixed on the hydraulic cylinder rod, the signs are n and the frame, and on the removal plate and frame are made longitudinal grooves. _

На фиг. 1 представлена форма,вид ³в плане, на фиг. 2 - разрез А-А на фиг. 1, на фиг. 3 - разрез Б-Б на фиг. 1.In FIG. 1 shows a form, view ³ in plan, in FIG. 2 is a section AA in FIG. 1, in FIG. 3 - section BB in FIG. 1.

Литьевая форма содержит неподвиж- . ную полуформу 1_? и подвижную полуфор- '0 му 2, на которой закреплен гидроили пневмоцилиндр 3, на штоке 4 которого установлена плита съема 5, размещенная с возможностью перемещения по направляющим пазам рамы 6 15 вдоль знаков 7, оформляющих полость в изделии. Рама 6 и плита съема 5 установлены с возможностью одновременного перемещения относительно штока 4 благодаря трению в направляющих 20 колонках 8 и упругим элементом 9,установленным на упоре 10, который ограничивает ход рамы 6 с плитой съема 5.Injection mold contains fixed-. new half-form 1 _? and a movable semiforce '0 mu 2, on which a hydraulic cylinder 3 is fixed, on the rod 4 of which a removal plate 5 is mounted, which is arranged to move along the guide grooves of the frame 6 15 along the signs 7 forming the cavity in the product. The frame 6 and the plate 5 are installed with the possibility of simultaneous movement relative to the rod 4 due to friction in the guides 20 of the columns 8 and an elastic element 9 mounted on the stop 10, which limits the progress of the frame 6 with the plate 5.

Литьевая форма работает следующим 25 образом.Injection mold works as follows 25.

После оформления изделия происходит разъем литьевой формы, в результате чего на подвижной полуфорМе 2 под влиянием трения в направляющих колонках и упругих элементов 9 плита 40 съема 5 и рама 6 с укрепленными неподвижно в ней оформляющими знаками 7 и оформленными на них изделиями премещаются относительно штока 4 до контакта с упором 10 на величину,дос-35 таточную для гарантийного перемещения плиты съема 5. В результате этого появляется возможность перемещать плиту съема 5 по направляющим пазам рамы б относительно оформляющих зна- 4Q ков 7, за счет чего оформленное изделие освобождается из литьевой формы, причем плита съема 5 получает перемещение от штока 4 гидро- или пневмоцилиндра 3. После съема готового изделия с оформляющего знака 7 шток 4 возвращает плиту съема 5 в исходное положение относительно знаков 7, а при смыкании литьевой формы неподвижная полуформа 1 возвращает плиту съема 5 и направляющую раму 6 в подвижную полуформу. Цикл повторяется.After the design of the product, an injection mold connector occurs, as a result of which, on the movable half-mold 2 under the influence of friction in the guide columns and elastic elements 9, the plate 40 of the stripper 5 and the frame 6 with the decorating signs 7 fixed on it and the products decorated on them move relative to the stem 4 to contact with the emphasis 10 to an amount sufficient to guarantee that the removal plate 5 is guaranteed to move. As a result, it becomes possible to move the removal plate 5 along the guide grooves of the frame b relative to the 4Q marking 7, due to whereupon the designed product is released from the injection mold, and the removal plate 5 receives movement from the rod 4 of the hydraulic or pneumatic cylinder 3. After removing the finished product from the registration plate 7, the rod 4 returns the removal plate 5 to its original position relative to the signs 7, and when the injection mold closes the half-mold 1 returns the removal plate 5 and the guide frame 6 to the movable half-mold. The cycle repeats.

Применение данной литьевой формы позволяет сократить вспомогательное время на наладку· на 10-15%.The use of this injection mold allows to reduce the auxiliary time for commissioning · by 10-15%.

Claims

The invention relates to the processing of plastics into articles, in particular, injection molds for the manufacture of long hollow articles. A well-known injection mold for the manufacture of long hollow plastic articles, comprising a stationary half-form with a sloping column, a movable half-form with housed in it and an interaction with an inclined column, a slider with hinged signs on it. 1. A disadvantage of the known form is that damage is possible the outer surface of the finished product from the pusher in the form of scratches, holes, chips, as well as the possible clogging of the product between the etched cadm sign and the pusher, not guaranteed by first removal of the article from oformp kadogo mark, since the pusher makes a rectilinear movement, and Layout yuschi sign - radially. The closest in technical essence to the present invention is a casting mold for the manufacture of long-numbered hollow products from polymeric materials, containing a movable and fixed half-form, marks that make up the cavity in the product, a removal plate mounted for movement along the mark, means for moving the plate removal (2. However, 3 of the known form, it is necessary to adjust the amount of opening of the half mold for each size of the product. Moreover, the adjustment of the motion of the moving half of the mold should be strictly in accordance with other products, since with insufficient disclosure, the product may not be completely removed from the registration mark, and manual labor is used for the final removal. The purpose of the invention is to increase productivity by simplifying the adjustment of the form when changing to another size of the product. that the mold for the manufacture of long hollow articles made of polymeric materials, including fixed and fixed half-molds, marks that make up the cavity in the product, a removable plate displacement along 3Haka, and means for moving the removal plate, siab, wife frame with guide slots under the removal plate, and means of movement of the removal plate made in the form of fixed on the movable cylinder half of the cylinder, and the removal plate is fixed on the hydraulic rod of the cylinder, the signs on the frame , and on the plate of removal and the frame are made longitudinal grooves. FIG. 1 shows a form, a plan view, FIG. 2 shows section A-A in FIG. 1, in FIG. 3 shows a section BB in FIG. 1. The casting mold comprises a fixed half-mold 1 and a mobile half-mold 2 on which a hydraulic or pneumatic cylinder 3 is fixed, on the stem 4 of which there is a removal plate 5 placed with the possibility of movement along the guiding grooves of the frame 6 along the signs 7 that define the cavity in the product. The frame b and plate 5 are mounted with the possibility of simultaneous movement relative to the rod 4 due to friction in the guide columns 8 and the elastic element 9 mounted on the stop 10, which limits the movement of the frame 6 with the plate 5 removed. The casting mold works as follows a mold mold connector occurs, with the result that on a movable half-mold 2 under the influence of friction in the guide columns and elastic elements 9, an ultrasound plate 5 and a frame 6 with fixed fortified signs 7 and decorated (on They move against the stem 4 before contact with the stop 10 by an amount sufficient to guarantee the removal plate 5. As a result, it is possible to move the removal plate 5 along guide grooves b with respect to the signs 7, whereby the decorated part is released from the injection mold, the removal plate 5 receiving movement from the stem 4 of the hydraulic or pneumatic cylinder 3. After removing the finished product from the design mark 7, the stem 4 returns the removal plate 5 to its original position relative to the marks 7, and SRI mold fixed mold 1 returns the pickup plate 5 and a guide frame 6 in the movable mold. The cycle is repeated. The use of this mold allows you to reduce the auxiliary set-up time by 10-15%. Formula of the Injection Molding form for the manufacture of long hollow articles made of polymeric materials, containing movable and stationary semi-molds, signs that define the cavity in the product, the removal plate mounted for movement along the sign, and the means for moving the removal plate, characterized in that , in order to increase productivity by simplifying the set-up of the mold when switching to another size of the product, it is provided with a frame with guide grooves for the removal plate, and the means for moving the removal plate is completed in the hydraulic cylinder fixed on the movable half-form, the removal plate is fixed on the hydraulic cylinder rod, the signs are on the frame, and longitudinal are made on the removal plate and the frame. Sources of information taken into account during the examination 1. USSR author's certificate No. 583917, cl. B 29 C 5/00, 1976.

2. USSR author's certificate number 534364, cl. In 29 C 5/00, 1975 (prototype).