SU704802A1

SU704802A1 - Versatile block-mould for making polymeric products

Info

Publication number: SU704802A1
Application number: SU772530619A
Authority: SU
Inventors: Евгений Николаевич Степанов; Ибрагим Бекирович Мискевич
Priority date: 1977-10-05
Filing date: 1977-10-05
Publication date: 1979-12-25

Description

(54) УНИВЕРСАЛЬНАЯ БЛОК-ФОРМА ДЛЯ ИЗГОТОВЛЕНИЯ ПОЛИМЕРНЫХ ИЗДЕЛИЙ(54) UNIVERSAL UNIT FORM FOR MANUFACTURING POLYMERIC PRODUCTS

1one

Изобретение относитс к области переработки полимерных материалов в издели методом лить под давлением и может быть использовано дл изготовлени мелких пластмассовых изделий типа каблука. --,„„The invention relates to the field of processing of polymeric materials into articles by injection molding and can be used for the manufacture of small plastic products such as heels. -, „„

Известны универсальные блок-формы дл изготовлени полимерных изделий, содержащие плиты креплени формообразующих элементов сменного блока, плиты выталкивающей системы блок-формы, толкающую плиту сменного блока с выталкивател ми изделий и узел креплени плит выталкивающей системы с толкающей плитой 1 .Universal block molds for the manufacture of polymeric products are known, comprising plates for fastening the shaping elements of a replaceable block, plates for pushing out a block-forming system, a pushing plate for an interchangeable block with pushing parts for products, and an attachment assembly for plates of the pushing system with a pushing plate 1.

В известных универсальных блок-формах узел креплени толкающей плиты блока с плитами выталкивающей системы выполнен в виде щарнйрных болтов. В случае использовани в блок-форме нескольких сменных блоков, необходимо закрепл ть индивидуально каждый блок, что увеличивает врем переналадки блок-формы.,In the well-known universal block-forms, the assembly unit of the pushing plate of the block with the plates of the push-out system is made in the form of side bolts. In the case of using several replaceable blocks in the block form, each block must be individually fixed, which increases the changeover time of the block form.

Цель изобретени - сокращение времени переналадки блок-формы.The purpose of the invention is to reduce the block changeover time.

Поставленна цель достигаетс тем, что узел креплени выталкивающей системы с толкающей плитой выполнен в виде планкиThe goal is achieved by the fact that the attachment unit of the push system with the pushing plate is made in the form of a bar

с пазами переменного сечени , установленной между плитами выталкивающей системы с возможностью перемещени вдоль этих плит, пальца с кольцевой проточкой, закрепленного в толкающей плите, проход щего через плиты выталкивающей системы и взаимодействующего кольцевой проточкой с пазом планки, и подпружиненного фиксатора , размещенного в одной из плит выталкивающей системы, взаимодействующего с планкой.with variable cross-section grooves installed between the pushes of the pusher system with the ability to move along these plates, a finger with an annular groove fixed in a pushing plate, passing through the plates of the extrusion system and an interacting annular groove with a slot groove, and a spring-loaded retainer placed in one of the plates ejector system interacting with the strap.

Предлагаема универсальна блок-форма схематично изображена на чертеже, где: на фиг. 1 - общий вид универсальной блок-формы в сомкнутом состо нии, продольный разрез; на фиг. 2 - сменный блок в разрезе; на фиг. 3 - разрез А-А на фиг. 1; на фиг. 4 - разрез Б-Б на фиг. 1.The proposed universal block form is shown schematically in the drawing, where: in FIG. 1 is a general view of a universal block shape in a closed state, a longitudinal section; in fig. 2 - replaceable unit in section; in fig. 3 shows section A-A in FIG. one; in fig. 4 shows a section BB in FIG. one.

Универсальна блок-форма содержит неподвижную плиту 1 с закрепленной на ней обоймой 2, подвижную плиту 3, св занную опорными брусь ми 4 с основанием 5 иThe universal block-form contains a fixed plate 1 with a holder 2 fixed on it, a movable plate 3 connected by supporting bars 4 with a base 5 and

Claims

the holder 6. Between the plates 3 and 5 are the plates 7 and 8 of the ejector system, the block forms with the shank 9 fixed in them. The replaceable unit contains parts of the matrix 10 and 11, fixed in the holder 6 and plate 3 with a pin 12, and parts of the matrix 13 and 14, fixed. in the cage 2 by the pin 15, the pushing plate 16 with the pushers 17 products. The pushers 17 pass through the half-sleeves 18 secured in the plate 19. Between the plates 7 and 8 of the ejector system there is a strip 20 with grooves of variable cross-section, mounted for movement along these plates. In the 1-plate 16 is fixed a finger 21 with an annular groove, which passes through the plates of the ejector system, and the annular groove interacts with the grooves of the plank 20 ... In the extreme positions, the strap 20 is fixed by a spring-loaded retainer 22 installed in one of the plates of the ejector system of the block form. The installation of the plug-in unit in the block form is carried out as follows. The plates 7 and 8 of the ejection system of the block form are retracted to the extreme position towards the base 5, and the bar 20 is raised up and fixed. A replaceable unit is installed, a finger is put into the groove of the bar 20 (into the expanded part of the groove), the bar is lowered, the narrow part of the groove is located in the annular groove of the finger. In this position, the bar is locked with a spring-loaded lock. Then, the forming cavity is filled with a polymeric material and a product is obtained. This universal block-shape ensures the simultaneous replacement of several interchangeable blocks simultaneously. The invention is a universal block-form for the manufacture of polymer products, comprising fastening plates for forming elements of a replaceable block, an ejector plate system for a block form, pushing a plate of an interchangeable block with product pushers, and an attachment unit for an ejector plate with a pushing plate characterized in that , in order to reduce the changeover time of the block form, the mount node of the pusher system with the pushing plate is made in the form of a bar with grooves of variable cross section installed between the plates of the pushes a sliding system with the ability to move along these plates, a finger with an annular groove, fixed in a pushing plate, passing through the plates of the pushing system, and interacting with an annular groove with a slot groove, and a spring-loaded retainer placed in one of the plates of the expelling system, joint. modded with a strap. Sources of information taken into account in the examination 1. N. Leikin. Designing molds for plastics products, Mashinostroenie, M., L., 1966, p. 222-224 (prototype).