SU1431951A1 - Collapsible mould for extrusion/blow-moulding of articles from thermoplastic material - Google Patents

Collapsible mould for extrusion/blow-moulding of articles from thermoplastic material Download PDF

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Publication number
SU1431951A1
SU1431951A1 SU4149097A SU4149097A SU1431951A1 SU 1431951 A1 SU1431951 A1 SU 1431951A1 SU 4149097 A SU4149097 A SU 4149097A SU 4149097 A SU4149097 A SU 4149097A SU 1431951 A1 SU1431951 A1 SU 1431951A1
Authority
SU
USSR - Soviet Union
Prior art keywords
plane
branches
thermoplastic material
articles
extrusion
Prior art date
Application number
SU4149097A
Other languages
Russian (ru)
Inventor
Виктор Георгиевич Боков
Павел Алексеевич Бударков
Леонид Андреевич Васев
Артур Васильевич Козырев
Original Assignee
Предприятие П/Я Р-6760
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Предприятие П/Я Р-6760 filed Critical Предприятие П/Я Р-6760
Priority to SU4149097A priority Critical patent/SU1431951A1/en
Application granted granted Critical
Publication of SU1431951A1 publication Critical patent/SU1431951A1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42Component parts, details or accessories; Auxiliary operations
    • B29C49/4242Means for deforming the parison prior to the blowing operation
    • B29C49/4247Means for deforming the parison prior to the blowing operation using spreading or extending means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42Component parts, details or accessories; Auxiliary operations
    • B29C49/4242Means for deforming the parison prior to the blowing operation
    • B29C49/4247Means for deforming the parison prior to the blowing operation using spreading or extending means
    • B29C49/425Means for deforming the parison prior to the blowing operation using spreading or extending means rods or bars entering the preform

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

Изобретение относитс  к переработке термопластов и предназначено дл  изготовлени  вилкообразных изделий, имеющих ответвлени , на машинах, снабженных механизмом поперечного раст жени  заготовок 11а, 116. Целью изобретени   вл етс  повышение коэффициента использовани  материала, ДЛЯ чего полуформы 2 и 3 разъемной формы снабжены ножами 4 и 5, соответственно установленными на участке между разветвлени ми полости и расположенными в ПЛОСКОСТИ, нормальной к плоскости разъема и пересекающейс  с плоскостью ее основани . 4 ил. ФThe invention relates to the processing of thermoplastics and is intended for the manufacture of fork-shaped products with branches on machines equipped with a transverse stretching mechanism for workpieces 11a, 116. The purpose of the invention is to increase the utilization rate of the material. For this, half-molds 2 and 3 of detachable form are equipped with knives 4 and 5 respectively installed in the area between the branches of the cavity and located in a PLANE, normal to the plane of the connector and intersecting with the plane of its base. 4 il. F

Description

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Изобретение относитс  к переработке термопластичных материалов в издели х и предназначено дл  изготовлени  вилкообразных изделий, имеющих ответвлени , на машинах, снабженных механизмом поперечного раст жени  заготовок.The invention relates to the processing of thermoplastic materials in articles and is intended for the manufacture of fork-shaped products with branches, on machines equipped with a transverse stretching mechanism for blanks.

Цель изобретени  - повышение коэффициента использоани  материала.The purpose of the invention is to increase the utilization of the material.

На фиг. 1 изображена предлагаема  разъемна  форма в разомкнутом положении, общий вид; на фиг. 2 - вид А на фиг. 1 (положение полуформ перед их окончательным смыканием); на фиг. 3 - сечение Б-Б на фиг. 1, положение полуформ перед разрезкой заготовки; на фиг. 4 - то же, положение полуформ перед их окончательным смыканием.FIG. 1 shows the proposed detachable form in the open position, the general view; in fig. 2 is a view A of FIG. 1 (the position of the half-form before their final closure); in fig. 3 is a section BB in FIG. 1, the position of the molds before cutting the workpiece; in fig. 4 - the same, the position of the half-form before their final closing.

Предлагаема  разъемна  форма содержит полость 1, полуформы 2 и 3, снабженные ножами 4 и 5 соответственно, установленными между разветвлени ми 6 и 7 полости 1 и расположенными в плоскости 00, нормальной плоскости NN разъема и пересекающейс  с плоскостью ее основани  8.The proposed split form comprises a cavity 1, half-molds 2 and 3, equipped with knives 4 and 5, respectively, installed between branches 6 and 7 of cavity 1 and located in plane 00, the normal plane of connector NN and intersecting with its base plane 8.

Форма выполнена с разветвлени ми 6 и 7, симметричными относительно плоскости NN, ножи 4 и 5 расположены нормально плоскости основани  8 формы.The mold is made with branches 6 and 7 symmetrical with respect to the NN plane, the knives 4 and 5 are arranged normally for the base plane 8 of the mold.

Перед началом формовани  издели  (фиг. 1) полуформы 2 и 3 наход тс  в разомкнутом положении. Захваты 9 и 10 механизма поперечного раст жени  заготовки 11 сведены (перемещены к оси полости 1) и наход тс  в зоне формовани  издели .Before starting the molding of the product (Fig. 1), the half molds 2 and 3 are in the open position. The grips 9 and 10 of the mechanism for cross-stretching the workpiece 11 are reduced (moved to the axis of cavity 1) and are in the molding zone of the product.

Затем в зону формовани  издели  подают расплав термопластического материала в виде трубчатой заготовки 11, имеющей форму, наиболее близкую по поперечному габариту к профилю полости 1 на участке до ее разветвлени  (заготов0Then, a melt of a thermoplastic material in the form of a tubular billet 11 having the shape closest in transverse dimension to the profile of cavity 1 in the area before its branching (blank 0

ка имеет форму цилиндрической трубы). После этого полуформы 2 и 3 смыкают. При встречном движении ножи 4 и 5 разрезают нижнюю часть заготовки 11 на две части На и 116, достаточно пропорциональные по поперечному габариту профилю разветвлений 6 и 7 полости 1 (фиг. 4). Разрезанные части 11а и 116 перемещают захватами 9 и 10 в зону разветвлений б и 7 полости 1.ka has the shape of a cylindrical tube). After that, the molds 2 and 3 are closed. When oncoming movement, the knives 4 and 5 cut the lower part of the workpiece 11 into two parts On and 116, sufficiently proportional in cross-sectional dimension to the branching profile 6 and 7 of cavity 1 (Fig. 4). The cut parts 11a and 116 are moved by the grippers 9 and 10 to the zone of the branches B and 7 of cavity 1.

После полного смыкани  полуформ 2 и 3 внутрь заготовки 11 подаетс  сжатый воздух и производитс  формование издели . После окончани  процесса формовани  издели  полуформы 2 и 3 размы- г кают и извлекают готовое изделие. Повышение коэффициента использовани  материала достигаетс  за счет уменьшени  обло , как на участке между разветвлени ми , так и на сужающемс  участке, так как благодар  ножам, обеспечивающим разрезку нижней части заготовки, дл  раздува можно использовать заготовку , имеющую меньший поперечный габарит.After the semi-molds 2 and 3 are completely closed, compressed air is fed into the blank 11 and the product is formed. After the molding process has been completed, molds 2 and 3 are opened and the finished product is removed. An increase in the utilization rate of the material is achieved by decreasing the surge, both in the area between the branches and in the narrowing area, because thanks to the knives that cut the lower part of the workpiece, a preform having a smaller transverse dimension can be used for blowing.

При применении предлагаемой формы коэффициент использовани  материала повышаетс  в 1,6 раза.When using the proposed form, the material utilization rate increases 1.6 times.

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Claims (1)

Формула изобретени Invention Formula Разъемна  форма устройства дл  экстру- зионно-раздувного формовани  издели  изThe detachable form of the device for extrusion blow molding an article from термопластичного материала, имеюща  разветвл ющуюс  полость, расположенную в плоскости разъема полуформ, отличающа с  тем, что с целью повышени  коэффициента использовани  материала, кажда  полуформа снабжена ножом, установленнымa thermoplastic material having a branching cavity located in the plane of the joint of the half-form, characterized in that in order to increase the utilization of the material, each half-form is provided with a knife на участке между разветвлени ми полости и располженны в плоскости, нормальной к плоскости разъема и пересекающейс  с плоскостью ее основани .in the area between the branches of the cavity and located in a plane normal to the plane of the connector and intersecting with the plane of its base.
SU4149097A 1986-11-18 1986-11-18 Collapsible mould for extrusion/blow-moulding of articles from thermoplastic material SU1431951A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU4149097A SU1431951A1 (en) 1986-11-18 1986-11-18 Collapsible mould for extrusion/blow-moulding of articles from thermoplastic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU4149097A SU1431951A1 (en) 1986-11-18 1986-11-18 Collapsible mould for extrusion/blow-moulding of articles from thermoplastic material

Publications (1)

Publication Number Publication Date
SU1431951A1 true SU1431951A1 (en) 1988-10-23

Family

ID=21268260

Family Applications (1)

Application Number Title Priority Date Filing Date
SU4149097A SU1431951A1 (en) 1986-11-18 1986-11-18 Collapsible mould for extrusion/blow-moulding of articles from thermoplastic material

Country Status (1)

Country Link
SU (1) SU1431951A1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Патент Швеции № 349975. кл. В 29 С 5/06. 1971. *

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