SU944946A1

SU944946A1 - Casting mould for producing plastic material articles

Info

Publication number: SU944946A1
Application number: SU802984764A
Authority: SU
Inventors: Валентин Федорович Бакуменко; Александр Семенович Вепринский; Евгений Абрамович Рахмилевич
Original assignee: Специальное конструкторско-технологическое бюро
Priority date: 1980-07-21
Filing date: 1980-07-21
Publication date: 1982-07-23

Description

1one

Изобретение относитс к переработке пластмасс и может быть использовано дл изготовлени из них изделий в многогнездных формах.The invention relates to the processing of plastics and can be used to make products from them in multi-cavity forms.

Наиболее .близкой к предлагаемой по технической сущности и достигаемому эффекту вл етс литьева форма дл изготовлени изделий из пластмасс, содержаща неподвижную и подвижную полуформы, в последней из которых размещены выталкивающа система, опорна плита и хвостовик 1.The closest to the proposed technical essence and the achieved effect is a casting mold for the manufacture of plastic products, containing fixed and movable half-molds, in the latter of which the ejector system, the base plate and the shank 1 are placed.

Однако производительность известной формы ограничиваетс усилием выталкивани .However, the performance of a known form is limited by the pushing force.

Цель изобретени - увеличение усили выталкивани изделий.The purpose of the invention is to increase the force of ejection of products.

Поставленна цель достигаетс тем, что литьева форма дл изготовлени изделий из пластмасс, содержаща неподвижную и подвижную полуформы, в последней из которых размещены выталкивающа система , опорна плита и хвостовик, снабжена размещенными на опорной плите зубчатыми колесами, установленными в зацеплении с участком хвостовика, который выполнен в виде двусторонней рейки, зубчатымиThe goal is achieved by the fact that a mold for the manufacture of plastic products containing fixed and movable half-molds, in the latter of which there is an ejector system, a support plate and a shank, fitted with gears arranged on a support plate that engage with a portion of the shank, which is made in the form of double-sided rack, serrated

щестерн ми, укрепленными с зубчатыми колесами на одних ос х, в которых закреплены толкающие стержни, установленные с возможностью перемещени в опорной плите , и зубчатыми рейками, установленными в зацеплении с зубчатыми щестерн ми.gears, fixed with gear wheels on one axis, in which push rods fixed with movement in the base plate, and gear racks mounted in engagement with gear gears are fixed.

На фиг. 1 показана литьева форма, продольный разрез; на фиг. 2 - то же, поперечный разрез.FIG. 1 shows a mold, a longitudinal section; in fig. 2 - the same cross section.

Литьева форма содержит неподвижную 1 и подвижную полуформы, последн из Casting form contains a fixed 1 and movable half-form, the last of

10 которых включает опорную плиту 2, размещенную на ней торцовую плиту 3 с закрепленным в ней хвостовиком 4, с участком, выполненным в виде зубчатой двусторонней рейки 5, в зацеплении с которой установлены зубчатые колеса 6, укрепленные на одних ос х 7 с зубчатыми щестерн ми 8, взаимодействующими с зубчатыми рейками 9. Оси 7 закреплены в толкающих стержн х 10, установленных с возможностью пе20 ремещени в опорной плите.10 of which includes a support plate 2, an end plate 3 placed on it with a shank 4 fixed in it, with a section made in the form of a toothed double-sided rail 5, in gear with which gears 6 are mounted, fixed on one axis x 7 with gear-shaped gear 8, interacting with the toothed racks 9. The axes 7 are secured in the push rods 10, which are installed with the possibility of displacement 20 in the base plate.

Claims

The ejector plates 11, in which the pushers 12 are installed, are connected by means of columns 13 to the base plate. Casting form works as follows. After completion of the casting process, the mold is opened, the shank 4 rests on the machine pusher and stops, and the movable half-form continues to move, with this rail 9, the gear 8 dies, and gear 6 through the axis 7, which moves along the toothed section of the shank 4, simultaneously by moving the push rods 10 secured to their axes, which move in the direction of opening the molds at a speed slower than the speed of the movable half-form. The plates 11 interacting with the rods 10 are moving at the same speed. The ejection speed of the products is equal to the speed difference between the movable half-form and the plates 11. Pass the distance A, the plates 11 rest directly on the shank 4 and stop. The rods 10 then move away from the plates 11 and the speed of pushing becomes equal to the speed of opening the form. The pushing amplifier is actually turned off. The size A may be small, since the increase in force is only necessary at the beginning of the ejection, with a general increase in the ejection stroke slightly. The use of the proposed mold will increase the productivity of the equipment / by increasing the ejection force. The invention The casting mold for the manufacture of plastic products, containing fixed and movable half-molds, in the latter of which there is an ejector system, a support plate and a shank, which in order to increase the force of ejection of products, it is equipped with gear wheels placed on the support plate mounted in engagement with a portion of the shank, which is made in the VID of a double-sided gear rack, toothed bristles, fortified with gear wheels on one axis, in which are fixed guide rods, ustanovlenn1e movably in the base plate, and the toothed racks mouth. ,, tained in engagement with the toothed gears. Sources of information taken into account in the examination 1. Technological equipment for cold forming, pressing plastics and injection molding. Directory directory under. ed. V.D. Korsakov. NIIinformash, 1967, Part 2, p. 138, fig. 115 (prototype).

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