CN103147664B - Steel liner-free plastic profile and internal co-extrusion mould head thereof - Google Patents
Steel liner-free plastic profile and internal co-extrusion mould head thereof Download PDFInfo
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- CN103147664B CN103147664B CN201310038711.3A CN201310038711A CN103147664B CN 103147664 B CN103147664 B CN 103147664B CN 201310038711 A CN201310038711 A CN 201310038711A CN 103147664 B CN103147664 B CN 103147664B
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- 238000001125 extrusion Methods 0.000 title claims abstract description 54
- 239000004033 plastic Substances 0.000 title claims abstract description 20
- 229920003023 plastic Polymers 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 16
- 239000010959 steel Substances 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 36
- 210000003205 muscle Anatomy 0.000 claims description 43
- 238000010438 heat treatment Methods 0.000 claims description 23
- 238000009413 insulation Methods 0.000 claims description 12
- 230000001788 irregular Effects 0.000 claims description 11
- 238000000605 extraction Methods 0.000 claims description 8
- 239000000155 melt Substances 0.000 claims description 6
- 210000002421 cell wall Anatomy 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 claims description 2
- 210000001161 mammalian embryo Anatomy 0.000 claims description 2
- 239000013589 supplement Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 210000002435 tendon Anatomy 0.000 abstract 5
- WSQZNZLOZXSBHA-UHFFFAOYSA-N 3,8-dioxabicyclo[8.2.2]tetradeca-1(12),10,13-triene-2,9-dione Chemical compound O=C1OCCCCOC(=O)C2=CC=C1C=C2 WSQZNZLOZXSBHA-UHFFFAOYSA-N 0.000 abstract 1
- 239000011810 insulating material Substances 0.000 abstract 1
- 230000007704 transition Effects 0.000 abstract 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 19
- -1 polybutylene terephthalate Polymers 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 241000397426 Centroberyx lineatus Species 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920003247 engineering thermoplastic Polymers 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a steel liner-free plastic profile and an internal co-extrusion mould head thereof. Two inner tendons forming a main profile chamber are extruded type PBT (Poly-Butylene Terephthalate) materials and are paved in corresponding inner tendon slots in a co-extrusion mode; the internal co-extrusion mould head comprises a machine neck, a transition plate, a bracket plate, a compressed plate, a pre-forming plate, a forming plate and an insert block; two co-extrusion runners for forming the inner tendons are arranged on a profile core and the insert block; heat-insulating layer mounting slots are respectively arranged outside the co-extrusion runners and inside a sub-runner corresponding to an outer wall of the main profile chamber; and heat-insulating layers made of heat-insulating materials are arranged in the slots. A co-extrusion method is adopted by the invention; two inner tendons of the main profile chamber are made of PBT co-extrusion materials; the strength of the inner tendons is high; no steel liner is assembled; the weight of the profile is reduced; and the production cost is lowered.
Description
Technical field
The present invention relates to a kind of do not need steel lining to strengthen plastic irregular profile and extrusion die, specifically one exempts from steel lining plastic irregular profile and interior coextrusion die head thereof.
Background technology
For process door and window plastic irregular profile inner chamber in be typically provided with muscle in several, inner chamber is separated into the chamber of difference in functionality, in order to prevent section bar in phenomenons such as producing, case, transport and easily occur bending and deformation in use procedure, break, usual needs load the steel lining of standard in the main chamber in the middle of section bar, be fixed by screws in profile wall, increase the intensity of section bar.Due to technical reason, section bar main chamber size is difficult to accomplish uniformity, and in assembling process, therefore very easily occur again that section bar inner chamber is little cannot assemble, or inner chamber great Yi such as to loosen at the problem, make assembly difficulty large, and cost is higher.
In order to overcome this defect, Chinese patent ZL201020639717.4 discloses the extrusion die that a kind of processing has the section bar of plastic inner lining, in section bar main chamber, obtain plastic inner lining by interior co-extrusion method, the cheap plastics of Lining Selection are to avoid increasing production cost too much.Fabircated shapes in this way, liner and section bar synchronous forming, do not need follow-up assembling, can improve follow-up door and window working (machining) efficiency.Because liner and section bar are plastics, its intensity is lower, and in ensureing, be lined with enough intensity, liner needs certain thickness, and therefore liner needs to consume more raw material, not only increases section bar weight, also can increase production cost.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, there is provided one to exempt from steel lining plastic irregular profile and interior coextrusion die head thereof, obtained with muscle in the section bar main chamber of high strength by interior co-extrusion method, both can remove the difficulty that assembling steel lining brings from, section bar weight can be alleviated again, reduce production cost.
The technical scheme that the present invention exempts from the employing of steel lining plastic irregular profile is: have two the interior muscle forming main chamber in the die cavity of described section bar; Two interior muscle materials of described formation main chamber are extrusion type PBT material; Two section bar inside outer wall of main chamber are provided with cell wall and are protruding in die cavity, are used for sandwiching the interior muscle draw-in groove of interior muscle, and described two interior muscle are laid in corresponding interior muscle draw-in groove by co-extrusion mode.
PBT is the abbreviation of polybutylene terephthalate (PBT) (English name polybutylene terephthalate).PBT is one of the most tough and tensile engineering thermoplastic material, has extraordinary chemical stability, mechanical strength, electrical insulation characteristics and heat endurance, can the intensity of effective reinforcing profile.In making with PBT, rigidity of soft tissues degree is high, with when wall thickness comparatively in plastics muscle to increase by 500 left and right, do not need to increase liner in addition when muscle wall thickness in increasing hardly and just can meet section bar intensity needs.
Consider that base-material PVC is different with the plasticization temperature of co-extrusion material PBT bi-material, and the problem that both compatibilities are bad, on section bar inwall, synchronously extrude interior muscle draw-in groove when extruding, the interior muscle after shaping embeds in draw-in groove, can prevent interior muscle from moving in section bar, to give full play to its supporting role.
Further, described interior muscle draw-in groove is dovetail groove.The double team of the internal muscle of this draw-in groove is effective, and it is firm that the interior muscle that PBT material is formed is connected with section bar outer wall.
The present invention, for exempting from coextrusion die head in steel lining plastic irregular profile, comprises machine neck, rebound, supporting plate, compressive plate, preformed board, profiled sheeting and insert; Be provided with sprue in machine neck, rebound is provided with the runner communicated with sprue, is provided with the spreader be protruding in machine neck sprue in the middle of rebound; Be provided with core in the middle of supporting plate, core one end extends in compressive plate, preformed board die cavity; Insert is fixed on the core port of export; Core and insert are provided with for extruding two co-extruding flow channels forming muscle in section bar main chamber, and rebound has the co-extrusion sprue communicated with co-extruding flow channel in core, the charging aperture of co-extrusion sprue is arranged on rebound sidewall; Core and insert outside two co-extruding flow channels, and are respectively equipped with thermal insulation layer mounting groove inside the runner corresponding with section bar main chamber outer wall, and groove is built with the thermal insulation layer be made up of heat-barrier material.
PVC base-material is entered by the sprue of machine neck, and PBT co-extrusion material is entered by the charging aperture of rebound sidewall.PVC melts the extrusion temperature of base about about 200 DEG C, and the too high meeting of temperature causes the disorderly consequently thickener of stream.PBT plasticization temperature is about about 250 DEG C, higher than PVC plastic temperature (PVC plastic temperature is about 190 DEG C), consider that temperature in extrusion declines, the PBT co-extrusion material entered in co-extruding flow channel melts base temperature can not lower than 240 DEG C, otherwise material self will not flow because of condensation.Therefore PBT co-extrusion material temperature degree in rebound is entered higher than PVC base temperature, by arranging thermal insulation layer in the core outside co-extruding flow channel and inside the runner corresponding with section bar main chamber outer wall and insert, can effectively prevent co-extrusion material heat from passing to the impact of outer field PVC base-material.
Further, the branch flow passage that the both sides of two co-extruding flow channels on the runner corresponding with section bar main chamber outer wall in oriented core two extend, described branch flow passage merges at core two port of export and corresponding co-extruding flow channel.
Further, described supporting plate is divided into the first supporting plate and the second supporting plate along extruding direction, the second core on second supporting plate and insert have heating element heater installing hole inside two co-extruding flow channels, hole is built with heating element heater, the sidewall of the second supporting plate has the cable extraction channel communicated with heating element heater installing hole, the cable of heating element heater is electrically connected with external temperature control system by cable extraction channel.By arranging heating element heater in core, can melt base heat the PBT co-extrusion in co-extruding flow channel, stable and additional heat, can meet the preference temperature that it extrudes needs, ensures that PBT co-extrusion melts the mobility of base.
As shown from the above technical solution, the present invention adopts interior co-extrusion method, and formed two interior muscle of section bar main chamber by PBT co-extrusion material, the intensity of interior muscle is high, does not need to assemble steel lining, has both alleviated section bar weight, and has reduced production cost again.
Accompanying drawing explanation
Fig. 1 is coextrusion die header structure schematic diagram in the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the sectional view along A-A line in Fig. 1.
Fig. 4 is the sectional view along B-B line in Fig. 1.
Fig. 5 is the sectional view along C-C line in Fig. 1.
Fig. 6 is D place close-up schematic view in Fig. 5.
Fig. 7 exempts from steel lining plastic irregular profile section structure schematic diagram.
Detailed description of the invention
The present invention exempts from steel lining plastic irregular profile as shown in Figure 7, in the middle of section bar 1, maximum inner chamber is main chamber 15, being provided with cell wall 111 inside two section bar outer walls 11,12 of main chamber 15 is protruding in die cavity, be used for sandwiching the interior muscle draw-in groove 112 of interior muscle, two interior muscle 13,14 are laid in corresponding interior muscle draw-in groove 112 by co-extrusion mode, and interior muscle draw-in groove 112 is dovetail groove.Article two, interior muscle 13,14 material is extrusion type PBT material.
Interior coextrusion die head as shown in Figure 1, comprises machine neck 21, rebound 22, first supporting plate 23, second supporting plate 24, compressive plate 25, preformed board 26, profiled sheeting 27 and insert 28; Be provided with sprue 211 in machine neck 21, in rebound 22, be provided with the runner 3 communicated with sprue 211, in the middle of rebound 22, be provided with the spreader 221 be protruding in machine neck 21 sprue; Be respectively equipped with the first core 231 in first supporting plate 23 and the second supporting plate 24 and second core 241, second core 241 one end extends in compressive plate 25, preformed board 26 die cavity, insert 28 is fixed on the port of export of the second core 241 by screw 281.First core 231, second core 241 and insert 28 are provided with for extruding two co-extruding flow channels 41,42 forming muscle 13,14 in section bar main chamber.
See Fig. 3, rebound 22 has the co-extrusion sprue 4 communicated with the co-extruding flow channel 41,42 in the first core 231, the charging aperture 7 of co-extrusion sprue 4 is arranged on rebound 22 sidewall.
See Fig. 1, Fig. 2, Fig. 4 and Fig. 5, second core 241 and insert 28 have the installing hole that three are used for installing heating element heater 51,52 inside two co-extruding flow channels 41,42, each hole is built with heating element heater, heating element heater 51,52 can adopt the heating rod of band temp sensing function, so that control temperature.The sidewall of the second supporting plate 24 has the cable extraction channel 81,82 communicated with heating element heater 51,52 installing hole, the cable of heating element heater 51,52 is electrically connected with external temperature control system by cable extraction channel 81,82.First core 231, second core 241 and insert 28 are outside two co-extruding flow channels 41,42, and between the runner 3 that heating element heater 51,52 is corresponding with section bar main chamber outer wall, be respectively equipped with thermal insulation layer mounting groove 61,62,63,64, each groove built with polytetrafluoroethylene (PTFE) or asbestos as thermal insulation layer.
See Fig. 2, Fig. 5 and Fig. 6, the two ends of co-extruding flow channel 41,42 are dovetail shaped.The branch flow passage 31,32 that on the runner 3 corresponding with section bar main chamber outer wall, the both sides of oriented two co-extruding flow channels 41,42 extend, branch flow passage 31,32 and runner 3 form swallowtail shape and are looped around the two ends of co-extruding flow channel 41,42, and branch flow passage 31,32 merges at second core 241 port of export and corresponding co-extruding flow channel 41,42.
Its operation principle is as follows: the PVC base-material that temperature is about about 200 DEG C is entered by the sprue of machine neck 21, is shunted enter in runner 3 by spreader 221; Simultaneously, the extrusion type PBT co-extrusion material of temperature about about 250 DEG C is entered by the charging aperture 7 of rebound 22 sidewall, being divided into two-way through co-extrusion sprue 4 enters in co-extruding flow channel 41,42 respectively, both merge in insert 28, PBT co-extrusion melt embryo in the instantaneous expansion of insert 28 port of export and two cell walls 111 being disposed in muscle draw-in groove 112 in muscle 13,14 edge in section bar 1 clamp, synchronously go out die head with PVC major ingredient, and enter stock mould and water tank cooling forming.In extrusion, the co-extrusion that the heat of heater element 51,52 is passed in co-extruding flow channel 41,42 by the second core 241 melts base, heats, supplements and stable heat, to meet the preference temperature that it extrudes needs it.And the heat conduction path between co-extrusion material and base-material separates by the thermal insulation layer in heat dam 61,62,63,64, prevent co-extrusion material heat from passing to outer field PVC base-material, ensure uniformity and the stability of discharging.
In the present invention coextrusion die head core in also can not heating element heater be set, namely above-mentioned first supporting plate and the second supporting plate unite two into one.Owing to not arranging heating element heater in die head, the feeding temperature of co-extrusion material is slightly high, and temperature is preferably at about 260 DEG C, and temperature control requirement is strict, requires that feeding temperature fluctuates little.
Claims (4)
1. exempt from steel lining plastic irregular profile, there are in the die cavity of described section bar (1) two interior muscle (13,14) of formation main chamber (15); It is characterized in that: two interior muscle (13, the 14) material of described formation main chamber is extrusion type PBT material; Two section bar outer walls (11,12) inner side of main chamber is provided with cell wall (111) and is protruding in die cavity, form the interior muscle draw-in groove (112) being used for sandwiching interior muscle, described two interior muscle (13,14) are laid in corresponding interior muscle draw-in groove (112) by co-extrusion mode, the process that described two interior muscle (13,14) are laid on interior muscle draw-in groove (112) is as follows: the PVC base-material of temperature 200 DEG C is entered by the sprue of machine neck, is shunted enter in runner by spreader; Simultaneously, the extrusion type PBT co-extrusion material of temperature 250 DEG C is entered by the charging aperture of rebound sidewall, be divided into two-way through co-extrusion sprue to enter respectively in co-extruding flow channel, both merge in insert, PBT co-extrusion melts embryo in the instantaneous expansion of insert outlet end and is disposed in two cell walls (111) clamping of the interior muscle draw-in groove (112) at interior muscle (13, the 14) edge of section bar (1), synchronously go out die head with PVC major ingredient, and enter stock mould and water tank cooling forming; In extrusion, the co-extrusion that the heat of heating element heater (51,52) is passed in co-extruding flow channel (41,42) by the second core (241) melts base, it is heated, supplements and stable heat, heat conduction path between co-extrusion material and base-material separates by the thermal insulation layer in thermal insulation layer mounting groove (61,62,63,64), prevents co-extrusion material heat from passing to outer field PVC base-material; Described interior muscle draw-in groove (112) is dovetail groove;
The structure of the interior coextrusion die head that the process coordinating above-mentioned two interior muscle (13,14) to be laid on interior muscle draw-in groove (112) uses is as follows:
Comprise machine neck (21), rebound (22), supporting plate (23,24), compressive plate (25), preformed board (26), profiled sheeting (27) and insert (28), sprue (211) is provided with in machine neck (21), rebound (22) is provided with the runner (3) communicated with sprue (211), is provided with the spreader (221) be protruding in machine neck sprue (211) in the middle of rebound (22), be provided with core (231,241) in the middle of supporting plate (23,24), core one end extends in compressive plate (25), preformed board (26) die cavity, insert (28) is fixed on the core port of export, core (231,241) and insert (28) are provided with for extruding two co-extruding flow channels (41,42) forming muscle in section bar main chamber, rebound (22) has the co-extrusion sprue (4) communicated with co-extruding flow channel in core (41,42), the charging aperture (7) of co-extrusion sprue is arranged on rebound (22) sidewall, core (231, 241) at two co-extruding flow channels (41, 42) inner side, insert (28) is at two co-extruding flow channels (41, 42) outside, and runner (3) inner side corresponding with section bar main chamber outer wall is respectively equipped with thermal insulation layer mounting groove (61, 62, 63, 64), groove is built with the thermal insulation layer be made up of heat-barrier material, runner (3) upper oriented two co-extruding flow channels (41 corresponding with section bar main chamber outer wall, 42) branch flow passage (31 that both sides extend, 32), described branch flow passage (31, 32) at the core port of export and corresponding co-extruding flow channel (41, 42) merge, described supporting plate (23, 24) the first supporting plate (23) and the second supporting plate (24) is divided into along extruding direction, the second core (241) on second supporting plate (24) and insert (28) are at two co-extruding flow channels (41, 42) inner side has heating element heater (51, 52) installing hole, hole is built with heating element heater, the sidewall of the second supporting plate (24) has the cable extraction channel (81 communicated with heating element heater installing hole, 82), heating element heater (51, 52) cable is by cable extraction channel (81, 82) be electrically connected with external temperature control system.
2., for exempting from coextrusion die head in steel lining plastic irregular profile, comprise machine neck (21), rebound (22), supporting plate (23,24), compressive plate (25), preformed board (26), profiled sheeting (27) and insert (28); Sprue (211) is provided with in machine neck (21), rebound (22) is provided with the runner (3) communicated with sprue (211), is provided with the spreader (221) be protruding in machine neck sprue (211) in the middle of rebound (22); Be provided with core (231,241) in the middle of supporting plate (23,24), core one end extends in compressive plate (25), preformed board (26) die cavity; Insert (28) is fixed on the core port of export; Core (231,241) and insert (28) are provided with for extruding two co-extruding flow channels (41,42) forming muscle in section bar main chamber, rebound (22) has the co-extrusion sprue (4) communicated with co-extruding flow channel in core (41,42), the charging aperture (7) of co-extrusion sprue is arranged on rebound (22) sidewall; It is characterized in that: core (231,241) is in two co-extruding flow channels (41,42) inner side, insert (28) is in the outside of two co-extruding flow channels (41,42), and runner (3) inner side corresponding with section bar main chamber outer wall is respectively equipped with thermal insulation layer mounting groove (61,62,63,64), groove is built with the thermal insulation layer be made up of heat-barrier material.
3. interior coextrusion die head according to claim 2, it is characterized in that: the branch flow passage (31,32) that the both sides of runner (3) upper oriented two co-extruding flow channels (41,42) corresponding with section bar main chamber outer wall extend, described branch flow passage (31,32) merges at the core port of export and corresponding co-extruding flow channel (41,42).
4. coextrusion die head according to Claims 2 or 3, it is characterized in that: described supporting plate (23, 24) the first supporting plate (23) and the second supporting plate (24) is divided into along extruding direction, the second core (241) on second supporting plate (24) and insert (28) are at two co-extruding flow channels (41, 42) inner side has heating element heater (51, 52) installing hole, hole is built with heating element heater, the sidewall of the second supporting plate (24) has the cable extraction channel (81 communicated with heating element heater installing hole, 82), heating element heater (51, 52) cable is by cable extraction channel (81, 82) be electrically connected with external temperature control system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310038711.3A CN103147664B (en) | 2013-01-31 | 2013-01-31 | Steel liner-free plastic profile and internal co-extrusion mould head thereof |
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| CN201310038711.3A CN103147664B (en) | 2013-01-31 | 2013-01-31 | Steel liner-free plastic profile and internal co-extrusion mould head thereof |
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| CN103147664A CN103147664A (en) | 2013-06-12 |
| CN103147664B true CN103147664B (en) | 2015-04-08 |
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| CN104029371B (en) * | 2014-05-27 | 2016-06-15 | 大连华工创新科技股份有限公司 | The plastic material former of sandwich layer filled polyurethane foaming |
| CN106863753A (en) * | 2016-12-26 | 2017-06-20 | 铜陵中发三佳科技股份有限公司 | The control method of wood moulding extrusion die part stream speed |
| CN109466040B (en) * | 2018-11-30 | 2024-04-12 | 洛阳艾佳模具制造有限公司 | Double-layer material profile extrusion die with steel lining |
Citations (5)
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|---|---|---|---|---|
| JPH06106599A (en) * | 1992-09-28 | 1994-04-19 | Mitsubishi Plastics Ind Ltd | Co-extruding feed block |
| CN2654332Y (en) * | 2003-11-25 | 2004-11-10 | 保定宝硕新型建筑材料有限公司 | Plastic profiled material coextrusion mould |
| CN102079127A (en) * | 2010-12-02 | 2011-06-01 | 铜陵三佳科技股份有限公司 | Method for forming section with plastic lining and extrusion die head thereof |
| CN102121563A (en) * | 2011-01-05 | 2011-07-13 | 湖南中财化学建材有限公司 | Plastic section and special production equipment and production method thereof |
| CN203050381U (en) * | 2013-01-31 | 2013-07-10 | 铜陵格瑞特挤出技术有限公司 | Steel-lining-free plastic profile and inner co-extrusion die head thereof |
-
2013
- 2013-01-31 CN CN201310038711.3A patent/CN103147664B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06106599A (en) * | 1992-09-28 | 1994-04-19 | Mitsubishi Plastics Ind Ltd | Co-extruding feed block |
| CN2654332Y (en) * | 2003-11-25 | 2004-11-10 | 保定宝硕新型建筑材料有限公司 | Plastic profiled material coextrusion mould |
| CN102079127A (en) * | 2010-12-02 | 2011-06-01 | 铜陵三佳科技股份有限公司 | Method for forming section with plastic lining and extrusion die head thereof |
| CN102121563A (en) * | 2011-01-05 | 2011-07-13 | 湖南中财化学建材有限公司 | Plastic section and special production equipment and production method thereof |
| CN203050381U (en) * | 2013-01-31 | 2013-07-10 | 铜陵格瑞特挤出技术有限公司 | Steel-lining-free plastic profile and inner co-extrusion die head thereof |
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| CN103147664A (en) | 2013-06-12 |
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Owner name: DALIAN SHIDE TECHNOLOGY DEVELOPMENT CO., LTD. Free format text: FORMER OWNER: TONGLING GREAT EXTRUSION TECH. CO., LTD. Effective date: 20140902 |
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Inventor after: Yang Feihu Inventor after: Cheng Xiansheng Inventor after: Jiang Feng Inventor after: Fan Huaijin Inventor after: Yin Zhijun Inventor before: Cha Anping Inventor before: Ao Wanlu Inventor before: Xu Rui Inventor before: Wang Jing Inventor before: Zhou Hansheng |
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Free format text: CORRECT: ADDRESS; FROM: 244061 TONGLING, ANHUI PROVINCE TO: 116318 DALIAN, LIAONING PROVINCE Free format text: CORRECT: INVENTOR; FROM: CHA ANPING AO WANLU XU RUI WANG JING ZHOU HANSHENG TO: YANG FEIHU CHENG XIANSHENG JIANG FENG FAN HUAIJIN YIN ZHIJUN |
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Effective date of registration: 20140902 Address after: Shide Industrial Park, No. 55 Liaoning street 116318 mosquito mouth of city of Dalian province Changxing Island Lingang Industrial Zone Applicant after: DALIAN SHIDE GROUP CO., LTD. Address before: 13-2, room 951, 244061 Taishan Avenue, Tongling Economic Development Zone, Anhui, China Applicant before: Tongling Great Extrusion Technology Co.,Ltd. |
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Effective date of registration: 20200414 Address after: 750000 no.218, Wenchang South Street, Yinchuan economic and Technological Development Zone, Ningxia Hui Autonomous Region Patentee after: Ningxia Shide new building materials Co., Ltd Address before: Shide Industrial Park, No. 55 Liaoning street 116318 mosquito mouth of city of Dalian province Changxing Island Lingang Industrial Zone Patentee before: DALIAN SHIDE SCIENCE & TECHNOLOGY DEVELOPMENT Co.,Ltd. |