WO2014120104A1 - Dispositif de refroidissement portable pour permettre un rotomoulage et procédé de fonctionnement de ce dernier - Google Patents

Dispositif de refroidissement portable pour permettre un rotomoulage et procédé de fonctionnement de ce dernier Download PDF

Info

Publication number
WO2014120104A1
WO2014120104A1 PCT/TR2014/000020 TR2014000020W WO2014120104A1 WO 2014120104 A1 WO2014120104 A1 WO 2014120104A1 TR 2014000020 W TR2014000020 W TR 2014000020W WO 2014120104 A1 WO2014120104 A1 WO 2014120104A1
Authority
WO
WIPO (PCT)
Prior art keywords
mold
water
air
cooling unit
mold according
Prior art date
Application number
PCT/TR2014/000020
Other languages
English (en)
Inventor
Veysel Celal BEYSEL
Original Assignee
Floteks Plasti̇k Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇
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 Plasti̇k Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ filed Critical Floteks Plasti̇k Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇
Publication of WO2014120104A1 publication Critical patent/WO2014120104A1/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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/16—Cooling
    • 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
    • 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
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/16—Cooling
    • B29C2035/1616—Cooling using liquids
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/16—Cooling
    • B29C2035/1658—Cooling using gas
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/16—Cooling
    • B29C2035/1691—Cooling using gas-liquid mixtures

Definitions

  • the present invention relates to an improvement realized on the cooling system in machines functioning by means of the rotational molding method used in plastic vessel manufacture.
  • plastic In today's technology, plastic has an important place since it is easily manufactured, since it is recyclable, and since it has a low cost. In today's living conditions, plastic is widely used, for instance, plastic is used in plastic glasses, in animal shelters; in cutlery, bus seats, fuel tanks, and water and sewerage systems.
  • Rotal molding is a molding method providing manufacture of hollow plastic materials which may be used in pluralities of applications. This method has an important place in worldwide plastic manufacture. Particularly, rotational molding method is preferred in plastic product manufacture in small series and in a small number of relatively bigger product range since it is more advantageous in terms of time saving and cost saving, and since the molds thereof are simpler and have a lower cost than the ones used in injection or in inflation method.
  • Pieces manufactured by means of rotation it is possible to realize a change in wall thickness without changing the mold. It is possible to obtain optionally 2-20 mm thickness by using the same mold. Pieces having complex contours and complex forms can be manufactured easily by means of the rotation method. It is possible to manufacture double- wall products by means of this method.
  • pluralities of molds can be formed and these molds can be manufactured simultaneously in the same rotation machine. In molds with different dimensions and shapes, manufacture can be realized by providing connection to the same machine simultaneously.
  • the pieces manufactured by means of the rotational molding method are hollow, and these pieces are non-welded mono-block pieces.
  • rotational molding method on a lever which is rotatable 360 degrees, there is a mold wherein raw material is placed and creating two rotational axles by rotating around itself. By means of the two axle rotation, the raw material is plastered with equal thickness on the mold walls.
  • the raw material plastered to the mold is shaped in ovens.
  • the mold removed from the oven is cooled down for certain time duration, and after the cooling process is completed and after the product is hardened, the mold is opened and the product is removed.
  • the mold is cooled down only by means of air fans from outside.
  • the water, sprayed onto the mold from outside is sometimes used as support in addition to the air fans.
  • cooling in this manner brings the result that the melt plastic provided inside the mold is cooled from outside towards inside, and the hardening of the melt plastic begins on the outer wall adhered to the mold, and the hardening is formed from outside towards inside. Since plastic is hardened firstly at outside and afterwards at inside in the wall thickness cross section, deformation problems occur. Since the hardening plastic realizes heat isolation, the cooling of the air inside the mold is retarded and as a result of this, the hardening of the plastic inner wall is retarded. Thus, the process duration is extended, efficiency decreases and the cost increases.
  • the present invention relates to the design and manufacture of a portable cooler provided for a mold and used for accelerating the cooling process, 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 provide a portable cooling unit allowing controlled cooling from inside in plastic shaping by means of the rotational method.
  • Another object of the present invention is to provide a portable cooling unit where temperature is controlled from inside and from outside in plastic shaping by means of the rotational method, and where the cooling start time and cooling speed can be adjusted depending on said two temperatures.
  • the present invention is a cooling method for cooling a product, after oven drying, provided for a mold placed on a machine lever which is rotationally movable, in order to shape polymeric materials in the desired form.
  • the present invention is characterized by comprising the steps of: a) Fixing the inner cooling unit of the mold to the machine lever as the temperature of the product exiting the oven reaches the predetermined temperature, and turning on an air supply, and applying air continuously to the system through an air input hose, b) Exiting some portion of the applied air through an air output hose, and passing through an atomizer apparatus, and blowing said air into the mold by means of the nozzle,
  • the step (d) comprises the following sub-steps: i) Reducing the pressure of the water exiting the balance tank to the desired pressure by means of a first regulator positioned on the water pipe,
  • the present invention is a portable cooling unit for a mold and comprising a balance tank wherein the water to be used is stored for cooling the inner portion of a product, provided for a mold, by means df water and air after exiting the oven and placed on a machine lever which is rotatable for shaping polymeric materials in the desired form; at least one water output hose extending into the mold from said balance tank; a pneumatic valve embodied in a connected manner with the balance tank and permitting water passage when turned on and stopping water passage when turned off; an air supply and an air output hose extending from said air supply into the mold.
  • the present invention comprises a first time relay and a second time relay positioned on the cage and giving the command to said pneumatic valve for applying the water, provided in the balance tank, into the mold periodically within predetermined durations; and the inner cooling unit is configured in a manner rotating together with the mold.
  • a pressure transmitter positioned on the cage and sensing the air applied by the air supply and activating the first time relay.
  • control unit sending turning on/off command by a processor to the air supply through a wireless communication interface in order to cool the product in a controlled manner in the direction of the information received from an environment temperature sensor measuring the temperature of the environment where the mold is provided, a mold inner temperature sensor placed to the inner portion of the mold, and a product outer temperature sensor positioned so as to be provided between the product outer surface and the mold.
  • an environment temperature sensor measuring the temperature of the environment where the mold is provided
  • a mold inner temperature sensor placed to the inner portion of the mold
  • a product outer temperature sensor positioned so as to be provided between the product outer surface and the mold.
  • control unit comprises a display panel where the data received from the sensors can be monitored.
  • the temperature values of the product outer surface, the environment and temperature values inside the mold can be monitored instantaneously.
  • the air supply can be turned on/off manually by an operator in the direction of the data monitored through said display panel.
  • the operation of the system can be started manually.
  • at least one rapid connection member is provided permitting fixation to/removal from the machine lever.
  • the rapid connection member is fixable onto/removal from the mold.
  • the pressured air tank comprises at least one second regulator provided at the continuation of the air pipe in order to adjust the pressure of the air applied into the mold.
  • the pressure of air sent into the mold can be controlled and can be kept at a standard level.
  • At least one first regulator is provided at the continuation of the water pipe in order to adjust the pressure of the water applied from the balance tank into the mold.
  • the pressure of the water sent into the mold can be controlled and can be kept at a standard level.
  • the balance tank comprises at least one chamber filled with air having a pressure of 4 atmospheres in order to send water into the mold by applying pressure to at least one elastic water chamber wherein water is provided.
  • environment pressure applies pressure to the elastic liquid chamber and water exits outside as a result of turning on the second pneumatic valve.
  • there is at least one atomizer apparatus where the air and water, applied by the air output hose and water output hose, are joined and where air and water are transferred into the mold in an atomized manner.
  • a manometer connected to a water connection pipe in order to measure the pressure of water applied to the elastic water chamber.
  • the air supply is a pressurized air tank positioned on the inner cooling unit.
  • the air supply is supply air provided by the machine where the inner cooling unit is positioned.
  • a gas transfer pipe embodied in a manner extending to the balance tank from the pressurized air tank.
  • the chamber comprises a second pneumatic valve positioned for providing pressure control.
  • the second pneumatic valve provides the air to be transferred into the chamber from the pressurized air tank by turning on when required.
  • the rotational shaping system there is a plate (20) which is rotating by means of the mirror-bevel drive connected to the transfer system coming from the machine lever (10) and connected by using a connection member (not illustrated in the figures) on the machine lever (10) rotating and used in shaping the plastic materials by means of thermal process; and there is a mold (30) fixed on the plate (20).
  • the plate (20) is seated on a shaft ( 1) provided on the machine lever (10).
  • the present invention comprises a cooling unit (40) for a mold and provided in a connected manner to the mold (30) in order to cool the inner portion of said mold (30); and a control unit (50) which may give the required commands for the operation of the system when required.
  • the mold (30) there is a body (31) having a shape desired to be given to the plastic material; a cover (32) covering the body (31); and atomizer apparatus input hole (34) embodied on the cover (32).
  • the mold (30) comprises an inner surface (35) and an outer surface (36) facing the outer environment.
  • the mold (35) used is generally metal having thickness of 3 mm or aluminum having thickness of 8-12 mm.
  • a water pipe (403) embodied in a manner extending outwardly from the balance tank (402) and there is a pneumatic valve (405) connected to the water pipe (403) and provided on the water pipe (403) in order to control the liquid passage inside said water pipe (403).
  • a pneumatic valve (405) connected to the water pipe (403) and provided on the water pipe (403) in order to control the liquid passage inside said water pipe (403).
  • a first regulator (406) regulating the pressure of liquid to be sent into the mold (30) is provided.
  • the water output hose (4061) and the air output hose (408) are joined on an atomizer apparatus (410), in order to join the air coming from the air output hose (408) and the water coming from the water output hose (4061) for cooling inside of the mold (30).
  • Said atomizer apparatus (410) generally comprises a pipe (4102), and a nozzle (4101) provided on the end of said pipe (4102) facing the inner surface (35) of the mold (30).
  • the balance tank (402) comprises an elastic water chamber (4022) positioned inside a chamber (4201); a water connection pipe (4023) provided in a connected manner with the elastic water chamber (4022) for providing water addition in case the water therein is reduced; and a water valve (4024) provided on the water connection pipe (4023) for controlling flow of water to the elastic water chamber (4022) by turning on/off.
  • a manometer 4025 connected to the water connection pipe (4023) through a manometer hose (4026) for measuring the pressure of water passing through the water connection pipe (4023).
  • first time relay (431) for providing the pneumatic valve (405) to turn on for certain duration and for providing the pneumatic valve (405) to turn off for certain duration
  • second time relay (432) connected to said first time relay (431) through a cable (not illustrated in the figures).
  • the power required for operation of the first time relay (431) and of the second time relay (432) is provided by a power supply (430) positioned on the cooling unit (40) for the mold.
  • Said first time relay (431) is connected to a pressure transmitter (433) through a cable from one side and connected to the pneumatic valve (405) and to the second time relay (432) from the other side.
  • an air input hose (407) embodied in a manner extending outwardly from the pressurized air tank (412).
  • a second regulator (417) is positioned for controlling the pressure value of the air exiting the pressurized air tank (412).
  • the air input hose (407) is connected to a dispenser pipe (404) from the other end.
  • the dispenser pipe (404) may have input and output ends in pluralities of numbers. There is an air input hose (407) at the input end and there is an air output hose (408) at the output ends and there is the first pressure transmitter (433).
  • the outer cooling unit (60) comprises a cool air fan (61) provided in a connected manner to the machine at the vicinity of the mold (30) for cooling the outer surface (36) of the mold (30) from pluralities of regions by means of air; a water hose (65) for cooling the outer surface (36) of the mold (30) in a similar manner and having a nozzle (64) at one end thereof; a water pump (63) providing water application to said water hose (65); and a water depot (62) for use as water supply.
  • a cool air fan (61) provided in a connected manner to the machine at the vicinity of the mold (30) for cooling the outer surface (36) of the mold (30) from pluralities of regions by means of air
  • a water hose (65) for cooling the outer surface (36) of the mold (30) in a similar manner and having a nozzle (64) at one end thereof
  • a water pump (63) providing water application to said water hose (65)
  • a water depot (62) for use as water supply.
  • the control unit (50) comprises an environment temperature sensor (52) measuring the environment temperature where the mold (30) exits the oven and the temperature inside the oven wherein the mold (30) enters for melting the plastic material provided inside the mold (30); a product outer temperature sensor (54) measuring the temperature by being placed between the mold (30) and the outer surface (36) of the product plastered onto the mold (30); a product inner temperature sensor (53) measuring the temperature of the inner portion of the product; and a display panel (55) where the data received from the sensors (52, 53, 54) can be monitored. There is a processor (57) sending command to the system through a wireless communication interface (56) as a result of the data received from the sensors (52, 53, 54).
  • the inner chamber (4021) pressure of the balance tank (402) Prior to usage, the inner chamber (4021) pressure of the balance tank (402) is adjusted as 4 atmospheres.
  • the second pneumatic valve (419) connected on the gas transfer pipe (418) is turned on, and sends air from the pressurized air tank (412) to the balance tank (402).
  • the elastic water chamber (4022) and the water connection pipe (4023) are connected to a water supply and the water valve (4024), positioned thereon, is turned on and filled with water. Afterwards, the water valve (4024) is turned off; and the water connection pipe (4023) and the water supply are disconnected.
  • the pressure of the water passing through the water connection pipe (4023) is measured by means of the manometer (4025).
  • the polymer-based raw material is disposed inside the mold (30) positioned on the machine lever (10), and the mold (30) enters into an oven together with the machine lever (10) realizing rotational movement.
  • the polymer-based raw material melts in time depending on the increasing temperature, and is plastered onto the inner surface (35) of the mold (30) as a result of the rotational movement realized by the machine lever (10).
  • the raw material, taking the shape of the mold (30) whose inner surface (35) is plastered by the raw material is afterwards removed from the oven, and is cooled down, it hardens and the final product is obtained.
  • the mold (30), having raw material therein plastered to the inner surface (35), is cooled after being removed from the oven. In the most ideal case, this cooling is realized both from the inner side and from the external side. External cooling is provided by blowing cool air onto the outer surface (36) of the mold (30) by the cold air fans (61) provided outside the mold (30) and by spraying the cooling water carried by the water hose (65) through the nozzle (64) tips onto the outer surface (36) of the mold (30) in a pressurized manner by a water pump.
  • Inner cooling is realized by the cooling unit (40) for the mold disposed at the vicinity of the mold (30) exiting the oven.
  • the cooling unit (40) for the mold is preferably fixed onto the rotary machine lever (10) by means of a rapid connection member (411).
  • the atomizer apparatus (410) is passed through the atomizer apparatus input hole (34) provided on the cover (32), and is disposed onto the cover (32).
  • the rapid connection member (41 1 ) covers the connection types like clamp, magnets, screwing, etc.
  • the pneumatic valve (405) is turned off, and the command of "turn on duration of the pneumatic valve (405) is completed" is transferred from the first time relay (431) to the second time relay (432).
  • the second time relay (432) counts the turn off duration of the first pneumatic valve (405) and at the end of said duration, it sends the "the turn off duration of the pneumatic valve (405) is completed” command to the first time relay (431).
  • the first time relay (431) is activated again, and it turns on the pneumatic valve (405). This cycle between the first time relay (431 ) and the second time relay (432) continues during the inner cooling.
  • the first time relay (431) is adjusted so as to permit air passage for duration of 1 second in 30 seconds through the pneumatic valve (405). Said time duration adjustment is changing depending on the type and thickness of the produced product.
  • the pneumatic valve (405) permits water passage through the water pipe (403) by turning on for the duration adjusted by means of the command applied by the first time relay (431). Water exits the elastic water chamber (4022) by means of the pressure applied by 4 atmospheres pressure from the chamber (4021), and reaches the first regulator (406) as a result of turning on the second pneumatic valve (405).
  • the first regulator (406) decreases the pressure of the water coming with 4 atmospheres pressure to 0,5 atmosphere value, and transfers the water to the water output hose (4061) by means of 0,5 atmosphere pressure. Said water pressure may change depending on the type and thickness of the produced product.
  • the air temperature inside the mold (30) measured continuously by the sensors (52, 53, 54) provided in the control unit (50), the product outer surface (36) temperature and the environment temperature values outside the mold (30) can be monitored by means of the display panel (55). Air is blown continuously into the mold (30). Water spraying besides air is provided at certain intervals. The reason for this is to prevent dropping of the drop which may form at the nozzle (4101) tip inside the product and to prevent damaging of the inner surface of the product in case air and water are interrupted. In case air is blown continuously, even if there is water in drop form at the nozzle (4101) tip and/or inside the atomizer apparatus (410), water will not fall as a drop inside the product thanks to the continuous air flow, and it will evaporate by means of the effect of heat. Thus, the product surface is prevented from being damaged.
  • the application of water spraying is adjusted by observing the values taken from the display panel (55) and the product inner temperature value and product outer temperature values and the differences in between, and thus, the desired cooling speed is tried to be reached.
  • the operation of the cooling unit is controlled by a processor (57).
  • the cooling unit (40) for the mold is fixed onto the machine lever (10) by using rapid connection members (411), and the cooling system is activated by activating the pressurized air tank (412) by the operator and/or by the processor (57).
  • the processor (57) can automatically manage the operation of the cooling unit (40) for the mold according to the programming state within programmable heats and within programmable durations.
  • the first time relay (431) is adjusted in a manner permitting water passage for 1 second within 30 seconds. These cycles are repeated periodically, and the cooling inside the mold (30) and the external cooling are provided in a balanced manner.
  • the rotation machine can be managed manually by an operator according to the data received from the sensors (52, 53, 54) and sent to the display panel (55) in an independent manner from the processor (57).
  • the operator first of ail sends the oven door opening command in order for the machine lever (10) whereon mold (30) is provided to be removed from the oven, as a result of the thermal data received from the display panel (55).
  • the cooling unit (40) for the mold is disposed to the machine lever (10) and to the mold (30).
  • the pressurized air tank (412) is opened manually by the operator, and air blow into the mold (30) is started.
  • the processor (57) controls the system, if the air temperature inside the mold (30) and if the temperature of the outer surface of the product do not reach the desired level, the temperature value is tried to be decreased by application of water to the outer cooling unit (60) for certain duration. When the temperature difference reaches the desired value, the process of spraying the water and air mixture from the atomizer apparatus (410) to the inner portion of the mold (30) in an atomized manner is repeated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

La présente invention se rapporte à une unité de refroidissement portable (40) pour au moins un moule (30) placé sur un levier de machine (10) qui peut être mis en rotation afin de former des matériaux polymères selon une forme souhaitée, ladite unité de refroidissement portable étant caractérisée par le fait qu'elle comprend au moins un tuyau souple de sortie d'eau (409) qui s'étend dans le moule (30) depuis ledit réservoir d'équilibre (402); au moins un tuyau souple de sortie d'air (408) qui transporte l'air reçu d'une alimentation en air (412) dans le moule (30); caractérisée en ce que l'unité de refroidissement interne (40) est configurée de manière à tourner conjointement avec au moins un levier de machine (10).
PCT/TR2014/000020 2013-01-31 2014-01-31 Dispositif de refroidissement portable pour permettre un rotomoulage et procédé de fonctionnement de ce dernier WO2014120104A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
TR2013/01245 2013-01-31
TR201301245 2013-01-31
TR2013/07452 2013-06-20
TR201307452 2013-06-20

Publications (1)

Publication Number Publication Date
WO2014120104A1 true WO2014120104A1 (fr) 2014-08-07

Family

ID=50440794

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2014/000020 WO2014120104A1 (fr) 2013-01-31 2014-01-31 Dispositif de refroidissement portable pour permettre un rotomoulage et procédé de fonctionnement de ce dernier

Country Status (1)

Country Link
WO (1) WO2014120104A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113681792A (zh) * 2021-07-16 2021-11-23 托普工业(江苏)有限公司 模具降温装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3350745A (en) * 1966-05-26 1967-11-07 Nat Distillers Chem Corp Rotational molding
JPS6262717A (ja) * 1985-09-13 1987-03-19 Nishikawa Kasei Kk スラツシユ成形金型の冷却方法
US20020187213A1 (en) * 2001-04-30 2002-12-12 Durrant Richard A. Bi-axial rotational molding oven
FR2856625A1 (fr) * 2003-06-27 2004-12-31 Rhodia Engineering Plastics Sa Fabrication d'articles par rotomoulage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3350745A (en) * 1966-05-26 1967-11-07 Nat Distillers Chem Corp Rotational molding
JPS6262717A (ja) * 1985-09-13 1987-03-19 Nishikawa Kasei Kk スラツシユ成形金型の冷却方法
US20020187213A1 (en) * 2001-04-30 2002-12-12 Durrant Richard A. Bi-axial rotational molding oven
FR2856625A1 (fr) * 2003-06-27 2004-12-31 Rhodia Engineering Plastics Sa Fabrication d'articles par rotomoulage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113681792A (zh) * 2021-07-16 2021-11-23 托普工业(江苏)有限公司 模具降温装置
CN113681792B (zh) * 2021-07-16 2023-08-04 托普工业(江苏)有限公司 模具降温装置

Similar Documents

Publication Publication Date Title
WO2017108004A1 (fr) Système de production de plastification de matériau
US11648725B2 (en) Method and apparatus for heating plastic preforms
US20110294085A1 (en) Method and device for the temperature control and/or temperature regulation of a preform heating device
JP6116329B2 (ja) プラスチック材料粒状体を製造するための処理プラント始動方法、及び、プラスチック材料粒状体を製造するための処理プラント
CN104456853B (zh) 空调器的控制方法、空调器的控制系统和空调器
WO2020064163A1 (fr) Dispositif et procédé de création de supports, de coffrages ou de structures en plastique alvéolaire, ainsi que dispositif et procédé de création de constructions
EP2848388B1 (fr) Procédé pour le refroidissement post-moulage d'un article moulé
WO2014120104A1 (fr) Dispositif de refroidissement portable pour permettre un rotomoulage et procédé de fonctionnement de ce dernier
KR101870290B1 (ko) 직선형 관로 코팅장치
US7647134B2 (en) Method of operating a temperature management device
CN104511401A (zh) 一种点胶系统及其方法
US6516862B2 (en) Method of fabricating a mold-cast porous metal structure
CN101032853A (zh) 滚塑成型设备多点加热装置
CN107263790A (zh) 用于生产空调部件发泡层的发泡模具及生产系统
US20120119413A1 (en) Method and apparatus for post-mold cooling a molded article
CA2192034A1 (fr) Procede et dispositif de formation de garniture interieure de canalisation
EP1436131B1 (fr) Procede de et dispositif pour la production d'une coque en plastique
KR102346717B1 (ko) 방수액 분사 장치
KR100579299B1 (ko) 도장부스 에어 제어장치
CN201055835Y (zh) 轮胎防漏自补机
EA200800671A1 (ru) Устройство для распыления серного материала
JP2004314399A (ja) 成形機の温度調整装置
KR20090088052A (ko) 운휴온도 제어를 포함한 도장부스의 온도제어방법
KR101790492B1 (ko) 차량용 실러 토출 제어 시스템
WO2020209328A1 (fr) Dispositif de réglage de température de préforme et procédé de réglage de température

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14715718

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14715718

Country of ref document: EP

Kind code of ref document: A1