WO2019078800A2 - Système de chauffage de moule spécial servant à chauffer des noyaux profonds à la température souhaitée en rotomoulage - Google Patents

Système de chauffage de moule spécial servant à chauffer des noyaux profonds à la température souhaitée en rotomoulage Download PDF

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Publication number
WO2019078800A2
WO2019078800A2 PCT/TR2018/050566 TR2018050566W WO2019078800A2 WO 2019078800 A2 WO2019078800 A2 WO 2019078800A2 TR 2018050566 W TR2018050566 W TR 2018050566W WO 2019078800 A2 WO2019078800 A2 WO 2019078800A2
Authority
WO
WIPO (PCT)
Prior art keywords
mold
heat
core
housing
cores
Prior art date
Application number
PCT/TR2018/050566
Other languages
English (en)
Other versions
WO2019078800A3 (fr
Inventor
Veysel Celal BEYSEL
Original Assignee
Floteks Plastik Sanayi Ve Ticaret Anonim Sirketi
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 Floteks Plastik Sanayi Ve Ticaret Anonim Sirketi filed Critical Floteks Plastik Sanayi Ve Ticaret Anonim Sirketi
Priority to DE112018004611.7T priority Critical patent/DE112018004611T5/de
Publication of WO2019078800A2 publication Critical patent/WO2019078800A2/fr
Publication of WO2019078800A3 publication Critical patent/WO2019078800A3/fr

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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
    • B29C41/06—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould about two or more axes
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/34—Component parts, details or accessories; Auxiliary operations
    • B29C41/38—Moulds, cores or other substrates
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/34—Component parts, details or accessories; Auxiliary operations
    • B29C41/46—Heating or cooling

Definitions

  • the present invention relates to a mold heating system developed for use in shaping materials by means of heat exchange inside the mold.
  • Rotational molding is a method where the powder material, placed into a mold, is molten and dispersed on the mold inner surface by means of applying heat to the mold from outside and by means of rotating the mold in the horizontal and orthogonal axis and where said material is cooled, hardened and takes the shape of the mold.
  • rotation, heating and cooling play important role.
  • the rotation process is frequently provided by means of a mold carrier system which can be brought to the required heat by means of a special mold carrier system and which can be kept at that temperature and which can rotate in two axles after entering an air blowing furnace.
  • this method there are problems in heating the deep cores placed into the mold. These deep cores are essentially heated without putting the mold inside the furnace or they are tried to be heated thanks to the hot air blowers guided thereon.
  • the present invention is a system which provides bringing of the cores to equal temperature with the other regions of the mold in rotation technology, for eliminating the above mentioned disadvantages and for bringing new advantages to the related technical field.
  • the main object of the present invention is to bring the heat of cores to the equal level with the other wall of the mold rapidly. Another object of the present invention is to provide acceleration of the heating of the core and thus to increase efficiency.
  • Another object of the present invention is to bring the heat in the core region to the same level with the mold and to bring the product wall thickness in the core regions to the same level with the wall thicknesses in the other regions of the mold.
  • Another object of the present invention is to provide a core heating system which increases energy saving in shaping of materials by means of the mold.
  • Another object of the present invention is to provide a mold heating system which decreases carbon footprint in rotational molding.
  • the present invention comprises a mold used for shaping polymer-based materials by means of melting said polymer-based materials with heat, cores positioned on said mold, and heat pipes connected to said cores and which snap-fit in a manner transferring heat into said cores when required, where said heat pipes use the energy occurring during vaporization and condensation of the liquid therein and heat the cores and have thin walls and may have desired length and various diameters and have two closed ends and have liquid therein.
  • each heat pipe is connected to a different point of the mold from an end thereof.
  • each heat pipe heats an area which is at an amount equal to the region where said heat pipe affects on the mold, each point in the mold can be heated separately up to the desired degree since there are pluralities of heat pipes.
  • each heat pipe is placed to the cores in a snap-fit manner. Thus, the heat transmission speed increases.
  • said core comprises housing which defines a thermal oil region wherein thermal oil can be applied and where one end of each heat pipe is inserted therein in a manner contacting the thermal oil.
  • each heat pipe extends outwardly from the mold such that one end of said heat pipe is inserted to said housing in relation thereto. Thus, each heat pipe is contacted to the hot air existing outside.
  • the diameter of the heat pipe is between 6 mm and 20 mm.
  • the mold is positioned such that the cores and the heat pipes are positioned on a carrier arm in a manner rotating together with the carrier arm.
  • the present invention is a core heating method where a mold and the core in relation are heated where said mold is used in melting and shaping polymer-based materials. Accordingly, said invention comprises the steps of:
  • the used heat pipes provide the required heat by means of the air circulation in the furnace.
  • the heat, coming from the heat pipes is spread to at least one predetermined region of the core with the help of thermal oil provided in the housing wherein the related heat pipe is immersed from one end thereof.
  • the mold is provided such that the cores and the heat pipes are rotated in two axles together with the carrier arm and thus, the polymer raw material is wrapped around the cores with equal thicknesses, where the temperature of said cores have been brought to the same temperature as the inner walls of the mold.
  • Figure 1 is a representative view of the lower chamber of the mold.
  • Figure 2 is a representative cross sectional view of the lower chamber of the mold.
  • Figure 3 is a cross sectional view of the mold.
  • Figure 4 is a representative view of the mold.
  • Figure 5 is a representative view of the mold.
  • said mold (10) essentially comprises a lower chamber (1 1) and an upper chamber (12). Said lower chamber (11) and said upper chamber (12) have a hollow semi-cubicle-like form.
  • a base (13) is provided on each of the lower chamber (11) and the upper chamber (12).
  • One each core housings (14) are embodied on each of said bases (13).
  • One each cores (30) extend from the core housings (14) towards each other and inside the mold (10).
  • At least one housing (31) is embodied on each core (30).
  • a heat pipe (20) is placed to each housing (31). The heat pipes (20) are placed in a snap-fit manner to the housing (31) provided on the core (30).
  • connection lips (15) are embodied which extend partially outwardly.
  • connection element (16) provided on said connection lip (15)
  • the temperature of the cores (30) is brought to the same level as the other wall of the mold (10) in a rapid manner.
  • the inner part and the outer part of the mold (10), for instance, the base (13) and the core (30) regions can be heated equally. Thanks to this, the wall thickness of the polymer material shaped inside the mold (10) can be brought to the same level as the levels of the all other surfaces in the core (30) regions.
  • thermal oil region wherein a thermal oil can be applied therein, in the part where the housing (31), embodied on the core (30), contacts the heat pipe (20), and one end of each heat pipe (20) is placed in a manner contacting the thermal oil.
  • a thermal oil can be applied therein, in the part where the housing (31), embodied on the core (30), contacts the heat pipe (20), and one end of each heat pipe (20) is placed in a manner contacting the thermal oil.

Landscapes

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

Abstract

La présente invention concerne un système permettant d'amener la température de noyaux à la même température que les autres régions du moule en rotomoulage, afin d'offrir de nouveaux avantages au domaine technique associé.
PCT/TR2018/050566 2017-10-17 2018-10-08 Système de chauffage de moule spécial servant à chauffer des noyaux profonds à la température souhaitée en rotomoulage WO2019078800A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112018004611.7T DE112018004611T5 (de) 2017-10-17 2018-10-08 Spezielles formheizungssystem zum heizen von tiefkernen auf die gewünschte temperatur mit drehtechnik

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2017/15990A TR201715990A2 (tr) 2017-10-17 2017-10-17 Rotasyon teknoloji̇si̇nde deri̇n maçalarin i̇steni̇len isiya geti̇ri̇lmesi̇ i̇çi̇n özel kalip isitma si̇stemi̇
TR2017/15990 2017-10-17

Publications (2)

Publication Number Publication Date
WO2019078800A2 true WO2019078800A2 (fr) 2019-04-25
WO2019078800A3 WO2019078800A3 (fr) 2019-06-06

Family

ID=66172927

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2018/050566 WO2019078800A2 (fr) 2017-10-17 2018-10-08 Système de chauffage de moule spécial servant à chauffer des noyaux profonds à la température souhaitée en rotomoulage

Country Status (3)

Country Link
DE (1) DE112018004611T5 (fr)
TR (1) TR201715990A2 (fr)
WO (1) WO2019078800A2 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61279516A (ja) * 1985-06-05 1986-12-10 Mitsubishi Electric Corp 美粧用ｆｒｐ製構造体の製造方法
JP3896461B2 (ja) * 2003-11-05 2007-03-22 独立行政法人産業技術総合研究所 精密成形金型
KR20050117939A (ko) * 2004-06-11 2005-12-15 삼성전자주식회사 금형장치
CN203957247U (zh) * 2014-06-25 2014-11-26 佛山金豹低碳科技有限公司 一种利于滚塑制品成型的模具

Also Published As

Publication number Publication date
WO2019078800A3 (fr) 2019-06-06
DE112018004611T5 (de) 2020-07-02
TR201715990A2 (tr) 2018-01-22

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