WO2014092470A1 - 고분자 역류 방지부를 갖는 고분자 성형 장치 - Google Patents
고분자 역류 방지부를 갖는 고분자 성형 장치 Download PDFInfo
- Publication number
- WO2014092470A1 WO2014092470A1 PCT/KR2013/011510 KR2013011510W WO2014092470A1 WO 2014092470 A1 WO2014092470 A1 WO 2014092470A1 KR 2013011510 W KR2013011510 W KR 2013011510W WO 2014092470 A1 WO2014092470 A1 WO 2014092470A1
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- WO
- WIPO (PCT)
- Prior art keywords
- polymer
- backflow prevention
- blowing agent
- passage
- outlet
- Prior art date
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Classifications
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- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3442—Mixing, kneading or conveying the foamable material
- B29C44/3446—Feeding the blowing agent
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- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/35—Component parts; Details or accessories
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/60—Measuring, controlling or regulating
-
- 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
- B29C45/18—Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
- B29C45/1816—Feeding auxiliary material, e.g. colouring material
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- 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
- B29C45/76—Measuring, controlling or regulating
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76003—Measured parameter
- B29C2945/76006—Pressure
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- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76655—Location of control
- B29C2945/76775—Fluids
Definitions
- the present invention relates to a polymer molding apparatus having a polymer backflow prevention section, and more particularly, to a polymer molding apparatus having a polymer backflow prevention section that can effectively prevent the molten polymer material from flowing back to the blowing agent inlet.
- the polymer molding technology is used to manufacture various plastic products by melting polymer pellets, ie pellets, made in a chemical plant using electric heat and mechanical friction, and then pushing them into a mold or die formed by applying a force.
- polymer pellets ie pellets
- foaming technology is being developed by efforts to reduce the material cost and further reduce the weight of the polymer product.
- the above-mentioned foaming technology is a technology for generating a large number of bubbles having a fine size in the polymer product, by mixing the chemical or physical blowing agent with the polymer material well and applying heat or pressure difference from the outside to vaporize the foamed product Allow bubbles to form inside.
- bubbles When bubbles are formed, bubbles occupy a large part of the product, which greatly reduces material costs, reduces the weight of the product, and has an advantage of obtaining thermal insulation performance due to bubbles.
- the foaming process is performed by injecting a foaming gas into the molten polymer resin in the cylinder or barrel of the injection molding machine or the extruder.
- the foaming gas is injected into the barrel through a gas inlet. If the pressure inside the barrel in which the polymer resin is stored is higher than the injection pressure of the foaming gas, the polymer resin flows back toward the gas inlet. Thus, the phenomenon of blocking the gas inlet is generated.
- An object of the present invention is to provide a polymer molding apparatus having a polymer backflow prevention portion that can effectively prevent the molten polymer material from flowing back to the blowing agent inlet.
- the present invention provides a chamber comprising a chamber for forming a constant pressure and storing a molten polymer resin;
- a blowing agent injection unit connected to the chamber and configured to supply a blowing agent supplied from the outside to the inside of the chamber by forming a pressure higher in the chamber;
- a polymer backflow prevention part installed in the blowing agent injection part and including a polymer backflow prevention part through which the blowing agent to be supplied passes and increasing a contact surface area with the polymer resin to prevent backflow of the polymer resin.
- the blowing agent injecting unit includes an inlet flow passage forming an inlet of a blowing agent, an outlet flow passage forming an outlet of a blowing agent, and a central flow path connecting the inlet flow passage and the outlet flow passage and having an inner diameter smaller than an inner diameter of the inlet flow passage and the outlet flow passage. And a resilient opening and closing means for elastically installed in the outlet passage so as to be positioned at the outlet side of the central passage and opening and closing the central passage in accordance with the supply pressure of the blowing agent.
- the said polymer backflow prevention part is provided in the edge part of the said exit flow path, and the said elastic opening / closing means is supported by the said polymer backflow prevention part.
- the outlet passage is connected to a lower end of the central passage, and has an inclined passage in which an inner diameter gradually expands downward from the lower end of the central passage.
- the elastic opening and closing means includes an opening and closing ball disposed in the inclined flow path and opening and closing the inclined flow path, and an elastic member elastically supporting the opening and closing ball and the polymer backflow prevention part.
- the polymer backflow prevention part is provided at an end of the outlet flow path, and includes a backflow prevention plate body on which an end of the elastic member is supported, and a plurality of backflow prevention holes formed in the backflow prevention plate body.
- the reverse flow prevention hole is preferably formed of a polygonal hole.
- the reverse flow prevention hole is preferably formed to gradually narrow along the supply direction of the blowing agent.
- a plurality of protrusions may be further formed on the inner circumferential surface of the backflow prevention hole.
- the said backflow prevention plate body is detachable from the edge part of the said outlet flow path.
- the said backflow prevention plate is formed so that it may incline toward the center from the edge along the supply direction of the said foaming agent.
- the present invention has the effect of effectively preventing the polymer resin from flowing back into the flow path of the blowing agent injection pipe in the physical foam molding process of the thermoplastic polymer material, thereby preventing the loss of the process.
- the backflow prevention holes formed by the polygonal holes increase the surface area with respect to the volume of the polymer resin, so that the polymer resin having a higher viscosity than the foaming gas flows back into the flow path of the blowing agent injection tube by the resistance of the backflow prevention holes. It has an effect that can be prevented.
- the present invention has the effect that the foaming gas can be dissolved into the polymer resin at a faster time by increasing the surface area relative to the volume of the gas through a plurality of backflow prevention holes.
- FIG. 1 is a configuration diagram schematically showing the configuration of a polymer molding apparatus having a polymer backflow prevention unit of the present invention.
- Figure 2 is an exploded perspective view showing the blowing agent injection portion according to the present invention.
- FIG 3 is a cross-sectional view showing a state before the blowing agent supply of the blowing agent injection unit according to the present invention.
- Figure 4 is a cross-sectional view showing a state in which the blowing agent is supplied in the blowing agent injection unit according to the present invention.
- FIG. 5 is a cross-sectional view showing an example of the polymer backflow prevention unit according to the present invention.
- FIG. 6 is a cross-sectional view showing another example of the polymer backflow prevention unit according to the present invention.
- FIG. 7 is a cross-sectional view showing another example of the polymer backflow prevention unit according to the present invention.
- FIG. 8 is a cross-sectional view showing another example of the polymer backflow prevention unit according to the present invention.
- FIG. 9 is a cross-sectional view showing another example of the polymer backflow prevention unit according to the present invention.
- FIG. 1 is a configuration diagram schematically showing the configuration of a polymer molding apparatus having a polymer backflow prevention unit of the present invention.
- the polymer molding apparatus having the polymer backflow prevention part according to the present invention includes a chamber 100, a blowing agent injection part 200, and a polymer backflow prevention part 300 (see FIG. 2).
- the chamber 100 is stored in a predetermined amount of the polymer resin. A predetermined pressure is formed inside the chamber 100.
- the blowing agent injection unit 200 supplies or injects the blowing agent supplied from the outside to the chamber 100 at a predetermined pressure.
- the pressure at the time of supplying the blowing agent may be formed above the pressure inside the chamber 100.
- blowing agent injection unit 200 The configuration of the blowing agent injection unit 200 will be described in more detail.
- the blowing agent injection unit 200 is composed of a blowing agent injection tube 210, and the elastic opening and closing means (230).
- the blowing agent injection pipe 210 is connected to the upper end of the chamber 100.
- the blowing agent injection pipe 210 is formed in a hollow shape, there is formed a flow path 220 through which the blowing agent flows.
- the flow path 220 is formed to penetrate the upper and lower sides of the foam injection pipe 210, and includes an inlet flow path 221, a central flow path 222, and an outlet flow path 223.
- the inner diameters of the inlet passage 221 and the outlet passage 223 may be the same or may be different from each other. This is preferably determined by the amount of blowing agent.
- the central passage 222 connects the inlet passage 221 and the outlet passage 223 to each other and forms an inner diameter smaller than the inner diameters of the inlet passage 221 and the outlet passage 223.
- the inlet flow passage 221 is connected to the upper end of the central passage 222, the inlet side inclined passage 221a is formed along the upper end of the central passage 222 gradually smaller.
- outlet passage 223 is connected to the lower end of the central passage 222, the outlet side inclined passage 223a of the inner diameter is gradually extended along the lower end of the central passage 222 is formed.
- exit side inclined flow path 223a shows a cross section that extends downward through the lower end of the central flow path 222.
- the inlet side inclined passage 221a and the outlet side inclined passage 223a are formed to be symmetric with respect to the central passage 222.
- the elastic opening and closing means 230 is disposed in the outlet passage 223.
- the elastic opening and closing means 230 is composed of an opening and closing ball 231, the elastic member 232.
- the opening and closing ball 231 is disposed in the outlet passage 223, it is preferably disposed in the outlet side inclined passage (223a).
- the elastic member 232 elastically supports the polymer backflow prevention part 300 installed at the lower end of the opening and closing fire 231 and the outlet passage 223.
- the elastic member 232 is formed of an elastic spring having a predetermined elastic modulus.
- the elastic member 232 opens and closes the central passage 222 and the outlet passage by pressing the opening / closing ball 231 downward by the supply pressure of the blowing agent. It is good to have elastic modulus as much as possible.
- the opening and closing ball 231 is returned to its original position by the return elastic force of the elastic member 232.
- the polymer backflow prevention part 300 is installed at a lower end of the outlet passage 223.
- the polymer backflow prevention part 300 includes a backflow prevention plate body 310 and a plurality of backflow prevention holes 311.
- the non-return plate body 310 may be formed in a disc shape, and is installed to be detachable at a lower end of the outlet passage 223.
- the desorption method may be a screw coupling method.
- the circumference of the non-return plate body 310 and the lower inner wall of the outlet passage 223 may be screwed to each other.
- the plurality of backflow prevention holes 311 may be formed as holes having a polygonal shape.
- the plurality of backflow prevention holes 311 may be formed as a rectangular hole.
- the backflow prevention hole 312 may be formed as a triangular hole, or may be formed as a cross-shaped hole 313 as shown in FIG. 7.
- the inner diameters of the plurality of backflow prevention holes 315 may be formed as holes whose inner diameters are gradually narrowed along the supply direction of the blowing agent.
- the inner circumference of the backflow prevention hole 315 is formed with an inclined surface 315a along the lower side.
- the supply flow rate of the blowing agent may increase along the feeding direction.
- the inner diameter of the backflow prevention hole 315 is increased along the reverse direction of the supply direction of the foaming agent, even if the foaming agent flows backward, the amount flowing back into the backflow prevention hole 315 is minimized to minimize the amount of backflowing upward. There is an advantage to this.
- a plurality of protrusions 314a protruding inward of the hole may be further formed on the inner circumference of the plurality of backflow prevention holes 314.
- the present invention further includes a first pressure sensor 240 for measuring the pressure generated when the blowing agent is supplied, the device body 10, the second pressure sensor 20 for measuring the resin pressure inside the chamber 100 ) Can be installed.
- the first pressure sensor 240 may measure the pressure of the blowing agent when the blowing agent is supplied.
- the first pressure sensor 240 may be installed on the inner upper end of the foam injection pipe 210, or may be installed on the foam supply line 401.
- the first and second pressure sensors 240 and 20 are electrically connected to the control unit 410, and the control unit 410 is the pressure of the blowing agent when supplying the blowing agent measured by the first and second pressure sensors 240 and 20, The resin pressure inside the apparatus main body 10 is transmitted.
- blowing agent injection unit 200 is connected to the blowing agent supply unit 400.
- the blowing agent supply unit 400 includes a blowing agent storage unit 440, a chiller 430, a pump 420, a valve 402, and a blowing agent supply line 401.
- the blowing agent supply line 401 is connected to the inlet passage 221 of the blowing agent injection pipe 210.
- the valve 402 is installed on the blowing agent supply line 401 and opens and closes the blowing agent supply line 401 by receiving a control signal from the controller 410.
- the pump 420 is also installed on the foaming agent supply line 401, and receives a control signal from the control unit 410 to forcibly supply the foaming agent along the foaming agent supply line 401.
- the chiller 430 and the foaming agent storage unit 440 are also installed in the foaming agent supply line 401.
- the chiller 430 may or may not be necessary depending on the type of blowing agent.
- the chiller 430 may be used when carbon dioxide is used as a blowing agent.
- control unit 410 uses a pump 420 to forcibly flow the blowing agent stored in the blowing agent storage unit 440 along the blowing agent supply line 401. At this time, the control unit 410 forms a state in which the open / close valve 402 is opened.
- foaming agent in this invention demonstrates typical examples as being foaming gas.
- the foaming gas is forcedly flowed along the foaming agent supply line 401 and is supplied to the foaming agent injection pipe 210.
- the foaming gas enters the inlet flow passage 221.
- the first pressure sensor 240 measures the pressure value of the foaming gas entering the flow path 220, and transmits it to the controller 410.
- the foaming gas enters the central flow path 222 and presses the opening / closing ball 231 at a predetermined pressure, the opening / closing ball 231 is pressed downward, and the elastic member 232 forms a compressed state.
- the foaming gas flows from the central flow passage 222 along the outlet flow passage 223 and is injected into the chamber 100 through the plurality of backflow preventing holes 311 formed in the polymer backflow preventing portion 300.
- the foamed polymer resin is stored in the chamber 100.
- the second pressure sensor 20 measures the pressure value inside the chamber 100 and transmits it to the controller 410.
- the controller 410 When the pressure value of the foaming gas is higher than the pressure value in the chamber 100, the controller 410 maintains the injection state of the foaming gas, and the pressure value of the foaming gas is lower than the pressure value in the chamber 100.
- the closing valve 402 is closed to block the supply state of the foaming gas.
- the polymer backflow prevention part 300 installed at the lower end of the foaming agent injection tube 210 increases the area in which the polymer resin is in contact with the polymer resin when the polymer resin flows back, so that the polymer resin is the foaming agent injection tube 210. To prevent flow back to the flow path 220.
- the polymer backflow prevention part 300 in the present invention includes a plurality of backflow prevention holes 311, which are formed of a plurality of rectangular holes as shown in FIGS. 4 and 5.
- the polymer resin flowing back inside the chamber 100 is increased in contact with the inner circumference of the slope of the backflow prevention hole 311 which is a rectangular hole.
- the backflow prevention holes 312 may be formed as a triangular hole or a cross-shaped hole 313 as shown in FIG. 7.
- the polymer resin to be flowed back may further increase the surface area contacted by the inner circumference forming the three sides or the inner circumference forming the plurality of surfaces in the triangular hole.
- the polymer resin may not flow back into the flow path in the blowing agent injection tube by the polygonal backflow prevention holes formed in the backflow prevention plate body in the present invention.
- the plurality of backflow prevention holes 315 may be formed such that the inner diameter gradually narrows along the inside of the chamber 100 in the flow path 220 of the foam injection pipe 210.
- the foaming gas when the foaming gas is injected into the interior of the chamber 100 from the flow path 220, the flow rate is gradually increased while flowing along the non-return holes 315 formed as described above, and eventually the chamber 100 It can be injected as the flow rate increases into the.
- the shape of the backflow prevention hole 311 formed as described above may be formed in the shape of the polygon shown in Figs.
- a plurality of protrusions 315a protruding along the inside may be further formed on the inner circumference of the backflow prevention hole 314 according to the present invention.
- the protrusions 315a may be hemispherical protrusions or polygonal protrusions.
- the protrusions 315a may be continuously formed from the upper end to the lower end in the inner circumference of the backflow prevention hole 311.
- the size of the protrusions 315a may be formed to gradually increase along the chamber 100 side, so that the area of the hole may be gradually narrowed along the chamber side.
- the protrusions 315a may further increase the contact area with the polymer resin when the polymer resin flows back into the backflow prevention hole 315, so that the polymer resin flows through the injection pipe 210. 220 can be efficiently prevented from flowing back.
- thermoplastic polymer material in the physical foam molding process of the thermoplastic polymer material, it is possible to effectively prevent the polymer resin from flowing back into the flow path of the blowing agent injection pipe to cause the loss of the process.
- the backflow prevention holes formed by the polygonal holes increase the surface area with respect to the volume of the polymer resin, so that the polymer resin having a higher viscosity than the foaming gas can be prevented from flowing back into the flow path of the blowing agent injection tube by the resistance of the backflow prevention holes.
- the embodiment according to the present invention allows the foaming gas to melt into the polymer resin at a faster time by increasing the volumetric surface area of the gas through a plurality of backflow prevention holes.
- the unit of the reverse flow rate is m3 / s.
- the backflow preventing plate A is a backflow preventing plate shown in FIG. 5
- the backflow preventing plate B is a backflow preventing plate shown in FIG. 6
- the backflow preventing plate C is a backflow preventing plate shown in FIG. 7.
- the comparative example shows a backflow flow rate twice as compared to Example 1, and results in forming a backflow flow rate more than twice as compared with Examples 2 and 3 It is showing.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
비교예 | 실시예1 | 실시예2 | 실시예3 | |
역류방지판없음 | 역류방지판A | 역류방지판B | 역류방지판C | |
역류유량 | 83 | 40 | 35 | 30 |
Claims (9)
- 일정 압력을 형성하며, 용융된 고분자 수지가 저장되는 챔버;상기 챔버에 연결되며, 외부로부터 공급 받은 발포제를 상기 챔버 내의 압력 이상을 형성하여 상기 챔버의 내부로 공급하는 발포제 주입부; 및상기 발포제 주입부에 설치되며, 공급하는 상기 발포제가 통과하며 상기 고분자 수지와의 접촉 표면적을 증가시켜 상기 고분자 수지의 역류를 방지하는 고분자 역류 방지부를 포함하는 것을 특징으로 하는 고분자 역류 방지부를 갖는 고분자 성형 장치.
- 제 1항에 있어서,상기 발포제 주입부는,발포제 입구를 형성하는 입구유로와, 발포제 출구를 형성하는 출구유로와, 상기 입구유로와 상기 출구유로를 연결하고 내경이 상기 입구유로와 상기 출구유로의 내경보다 작게 형성되는 중앙 유로를 갖는 발포제 주입관과,상기 중앙유로의 출구측에 위치되도록 상기 출구유로의 내부에 탄성적으로 설치되며, 상기 발포제의 공급 압력에 따라 상기 중앙유로를 개폐하는 탄성 개폐 수단을 구비하되,상기 고분자 역류 방지부는, 상기 출구유로의 단부에 설치되고,상기 탄성 개폐 수단은 상기 고분자 역류 방지부에 지지되는 것을 특징으로 하는 고분자 역류 방지부를 갖는 고분자 성형 장치.
- 제 2항에 있어서,상기 출구유로는 상기 중앙유로의 하단에 연결되고, 상기 중앙 유로의 하단으로부터 하방을 따라 내경이 점진적으로 확장되는 경사유로를 갖고,상기 탄성 개폐 수단은,상기 경사 유로에 배치되어 상기 경사 유로를 개폐하는 개폐볼과, 상기 개폐볼과 상기 고분자 역류 방지부를 서로 탄성 지지하는 탄성 부재를 구비하는 것을 특징으로 하는 고분자 역류 방지부를 갖는 고분자 성형 장치.
- 제 3항에 있어서,상기 고분자 역류 방지부는,상기 출구유로의 단부에 설치되며, 상기 탄성 부재의 단부가 지지되는 역류 방지판 몸체와,상기 역류 방지판 몸체에 형성되는 다수의 역류 방지홀을 구비하는 것을 특징으로 하는 고분자 역류 방지부를 갖는 고분자 성형 장치.
- 제 4항에 있어서,상기 역류 방지홀은,다각 형상의 홀로 형성되는 것을 특징으로 하는 고분자 역류 방지부를 갖는 고분자 성형 장치.
- 제 4항에 있어서,상기 역류 방지홀은,상기 발포제의 공급 방향을 따라 점진적으로 좁아지도록 형성되는 것을 특징으로 하는 고분자 역류 방지부를 갖는 고분자 성형 장치.
- 제 4항에 있어서,상기 역류 방지홀의 내주면에는,다수의 돌기들이 더 형성되는 것을 특징으로 하는 고분자 역류 방지부를 갖는 고분자 성형 장치.
- 제 4항에 있어서,상기 역류 방지판 몸체는,상기 출구 유로의 단부에서 탈착 가능한 것을 특징으로 하는 고분자 역류 방지부를 갖는 고분자 성형 장치.
- 제 4항에 있어서,상기 역류 방지판은,상기 발포제의 공급 방향을 따라, 테두리에서 중앙을 향해 경사지도록 형성되는 것을 특징으로 하는 고분자 역류 방지부를 갖는 고분자 성형 장치.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015547853A JP6403169B2 (ja) | 2012-12-12 | 2013-12-12 | 高分子逆流防止部を有する高分子成形装置 |
EP13863333.4A EP2933085B1 (en) | 2012-12-12 | 2013-12-12 | Apparatus for forming polymer, comprising polymer backflow prevention portion |
US14/650,392 US10201920B2 (en) | 2012-12-12 | 2013-12-12 | Apparatus for forming polymer, comprising polymer backflow prevention portion |
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KR10-2012-0144487 | 2012-12-12 | ||
KR1020120144487A KR101607361B1 (ko) | 2012-12-12 | 2012-12-12 | 고분자 역류 방지부를 갖는 고분자 성형 장치 |
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US (1) | US10201920B2 (ko) |
EP (1) | EP2933085B1 (ko) |
JP (1) | JP6403169B2 (ko) |
KR (1) | KR101607361B1 (ko) |
WO (1) | WO2014092470A1 (ko) |
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JP7519967B2 (ja) * | 2021-08-24 | 2024-07-22 | マクセル株式会社 | 物理発泡剤導入用フィルタ、発泡成形体の製造装置および製造方法 |
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- 2013-12-12 US US14/650,392 patent/US10201920B2/en active Active
- 2013-12-12 EP EP13863333.4A patent/EP2933085B1/en active Active
- 2013-12-12 WO PCT/KR2013/011510 patent/WO2014092470A1/ko active Application Filing
- 2013-12-12 JP JP2015547853A patent/JP6403169B2/ja not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
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EP2933085A4 (en) | 2016-01-20 |
JP2016500347A (ja) | 2016-01-12 |
EP2933085A1 (en) | 2015-10-21 |
US10201920B2 (en) | 2019-02-12 |
KR20140080602A (ko) | 2014-07-01 |
US20160185020A1 (en) | 2016-06-30 |
JP6403169B2 (ja) | 2018-10-10 |
EP2933085B1 (en) | 2022-02-02 |
KR101607361B1 (ko) | 2016-03-30 |
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