SU1466943A1 - Casting mould for producing polymeric articles with undercuts - Google Patents

Casting mould for producing polymeric articles with undercuts Download PDF

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Publication number
SU1466943A1
SU1466943A1 SU874209347A SU4209347A SU1466943A1 SU 1466943 A1 SU1466943 A1 SU 1466943A1 SU 874209347 A SU874209347 A SU 874209347A SU 4209347 A SU4209347 A SU 4209347A SU 1466943 A1 SU1466943 A1 SU 1466943A1
Authority
SU
USSR - Soviet Union
Prior art keywords
signs
shelves
fixed plate
undercuts
elements
Prior art date
Application number
SU874209347A
Other languages
Russian (ru)
Inventor
Карл Хаимович Дубов
Владимир Васильевич Бобров
Марлен Адольфович Шнейдерман
Григорий Иванович Гречушкин
Original Assignee
Московское Научно-Производственное Объединение По Механизированному Строительному Инструменту И Отделочным Машинам
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 Московское Научно-Производственное Объединение По Механизированному Строительному Инструменту И Отделочным Машинам filed Critical Московское Научно-Производственное Объединение По Механизированному Строительному Инструменту И Отделочным Машинам
Priority to SU874209347A priority Critical patent/SU1466943A1/en
Application granted granted Critical
Publication of SU1466943A1 publication Critical patent/SU1466943A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/44—Removing or ejecting moulded articles for undercut articles
    • B29C45/4471—Removing or ejecting moulded articles for undercut articles using flexible or pivotable undercut forming elements

Landscapes

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

Abstract

Изобретение относитс  к литьевым формам дл  изготовлени  полимерных изделий с поднутрени ми. Цель изобретени  - расширение технологических возможностей формы. Дл  этого оформл юш.ие элементы 12 в неподвижной плите подпружинены в направлении разъема формы, а знаки 7 выполнены в виде двутавровых элементов, установленных между боковыми поверхност ми подпружиненных оформл ющих элементов 12 и стенками гнезд дл  них с возможностью поворота относительно обращенных к оформл ющему элементу полок 13 на хвостовой части знаков. На оформл ющих элементах 12 выполнены углублени  дл  полок на хвостовой части знаков 7, а полки 14 передней части знаков 7, обращенные к стенкам гнезд, изготовлены со скосом 15 дл  взаимодействи  с кромкой неподвижной плиты. Поднутрени  в отливке образуютс  знаком, расположенным непосредственно в гнезде. Дл  этого не требуетс  дополнительных элементов дл  перемещени  знаков 7, поскольку они перемещаютс  при раскрытии формы за счет взаимодействи  полок 13 с углублени ми в оформл ющем эле.менте 12. 5 ил. с S СО сThe invention relates to injection molds for the manufacture of polymeric articles with undercuts. The purpose of the invention is to expand the technological capabilities of the form. To do this, the design elements 12 in the fixed plate are spring-loaded in the direction of the connector of the form, and the signs 7 are made in the form of I-beams installed between the side surfaces of the spring-loaded design elements 12 and the walls of the nests for them can be rotated relative to the design element. shelves 13 on the tail of the signs. The décor elements 12 have recesses for the shelves on the tail of the signs 7, and the front walls 14 of the signs 7 facing the nest walls are made with a bevel 15 for engagement with the edge of the fixed plate. The undercuts in the casting are formed by a sign located directly in the socket. For this, no additional elements are required to move the signs 7, since they move when opening the form due to the interaction of the shelves 13 with depressions in the design element 12. 5 ill. with S WITH with

Description

фиг. 7FIG. 7

Фиг.ЗFig.Z

. Б - Б. B - B

1818

цг. 5cg five

11eleven

1212

Claims (1)

Формула изобретенияClaim Литьевая форма для изготовления полимерных изделий с поднутрениями, содержащая подвижную и неподвижную плиты с оформляющими полостями, образованными установленными в гнездах оформляющими элементами, включающими расположенные в неподвижной плите знаки, отличающаяся тем, что, с целью расширения технологических возможностей формы, оформляющие элементы в неподвижной плите подпружинены в направлении разъема формы, а знаки выполнены в виде двутавровых элементов, установленных между боковыми поверхностями подпружиненных оформляющих элементов и стенками гнезд для них с возможностью поворота относительно обращенных к оформляющему элементу полок на хвостовой части знаков, при этом на оформляющих элементах выполнены углубления для полок на хвостовой части знаков, а полки передней части знаков, обращенных к стенкам гнезд, выполнены со скосом для взаимодействия с кромкой неподвижной плиты.An injection mold for the manufacture of polymer products with undercuts, comprising a movable and fixed plate with forming cavities formed by forming elements installed in the nests, including signs located in the fixed plate, characterized in that, in order to expand the technological capabilities of the form, the forming elements in the fixed plate are spring loaded in the direction of the mold connector, and the signs are made in the form of I-shaped elements installed between the side surfaces of the spring-loaded forming elements entrances and nest walls for them with the possibility of rotation relative to the shelves facing the forming element on the rear of the signs, while on the forming elements there are recesses for the shelves on the rear of the signs, and the shelves of the front of the signs facing the nest walls are made with a bevel for interaction with the edge of a fixed plate. А-АAa Фие. 2Fie. 2 Фиг.ЗFig.Z
SU874209347A 1987-03-13 1987-03-13 Casting mould for producing polymeric articles with undercuts SU1466943A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU874209347A SU1466943A1 (en) 1987-03-13 1987-03-13 Casting mould for producing polymeric articles with undercuts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU874209347A SU1466943A1 (en) 1987-03-13 1987-03-13 Casting mould for producing polymeric articles with undercuts

Publications (1)

Publication Number Publication Date
SU1466943A1 true SU1466943A1 (en) 1989-03-23

Family

ID=21290545

Family Applications (1)

Application Number Title Priority Date Filing Date
SU874209347A SU1466943A1 (en) 1987-03-13 1987-03-13 Casting mould for producing polymeric articles with undercuts

Country Status (1)

Country Link
SU (1) SU1466943A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2768360A1 (en) * 1997-09-16 1999-03-19 Allibert Ind Method of opening mold to clear projecting section
EP1787784A1 (en) * 2005-11-22 2007-05-23 Karl Gritscher Mould for manufacturing parts by injection moulding, pressure die casting or a deposition method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Технологическа оснастка дл переработки термопластов. Отраслевой каталог М., ЦНИИТЭстроймаш, 1983, с 55-57 рис. 31. *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2768360A1 (en) * 1997-09-16 1999-03-19 Allibert Ind Method of opening mold to clear projecting section
EP1787784A1 (en) * 2005-11-22 2007-05-23 Karl Gritscher Mould for manufacturing parts by injection moulding, pressure die casting or a deposition method

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