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 PDFInfo
- 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
Links
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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4242—Means for deforming the parison prior to the blowing operation
- B29C49/4247—Means for deforming the parison prior to the blowing operation using spreading or extending means
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4242—Means for deforming the parison prior to the blowing operation
- B29C49/4247—Means for deforming the parison prior to the blowing operation using spreading or extending means
- B29C49/425—Means 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)
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) |
-
1986
- 1986-11-18 SU SU4149097A patent/SU1431951A1/en active
Non-Patent Citations (1)
Title |
---|
Патент Швеции № 349975. кл. В 29 С 5/06. 1971. * |
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