CN104943122A - Gas-assisted mouth die assembly - Google Patents
Gas-assisted mouth die assembly Download PDFInfo
- Publication number
- CN104943122A CN104943122A CN201510221508.9A CN201510221508A CN104943122A CN 104943122 A CN104943122 A CN 104943122A CN 201510221508 A CN201510221508 A CN 201510221508A CN 104943122 A CN104943122 A CN 104943122A
- Authority
- CN
- China
- Prior art keywords
- gas
- gas secondary
- flow
- air chamber
- secondary segment
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 239000012528 membrane Substances 0.000 claims description 15
- 239000011148 porous material Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 108
- 229920000642 polymer Polymers 0.000 description 41
- 238000001125 extrusion Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 235000012438 extruded product Nutrition 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/14—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration
- B29C48/147—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration after the die nozzle
- B29C48/1472—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration after the die nozzle at the die nozzle exit zone
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides an improved gas-assisted mouth die assembly of an extruder. The improved gas-assisted mouth die assembly comprises a non-gas-assisted section, a gas chamber section and a gas-assisted section, which are coaxially and sequentially arrayed, wherein a flow channel pipe is arranged on the non-gas-assisted section in an integral molding manner; a flow channel inlet is formed in the other side, corresponding to the flow channel pipe, on the non-gas-assisted section; a flow channel pipe inserting hole and a gas chamber cavity are axially and sequentially formed in the central part of the gas chamber section; the gas chamber section is further provided with a gas hole which is used for communicating the gas chamber section and an outer shaft surface in the radial direction; a gas-assisted flow channel hole is formed in the gas-assisted section in a manner of corresponding to the flow channel pipe; the length of the flow channel pipe is greater than the length of the gas chamber section and smaller than the sum of the lengths of the gas chamber section and the gas-assisted section; the other end, corresponding to the non-gas-assisted section, of the flow channel pipe penetrates through the flow channel pipe inserting hole and the gas chamber cavity to be inserted into the gas-assisted flow channel hole; and a gas cushion is reserved between the radial periphery of the flow channel pipe and a peripheral hole wall of the gas-assisted flow channel hole to form a gap.
Description
Technical field
The present invention relates to polymeric molds field, refer to the auxiliary mouth membrane module of a kind of gas of polymer-extruded machine of improvement especially.
Background technology
The extruded product of polymeric material needs, by extruder, molten polymer material is plastified uniformly melt in producing shaped process, finally by the discharging of mouth mould, form product, mouth mould is steelwork, steel coefficient of friction is large, produce the friction of adhesion during the polymer flow passage of high temperature polymer melt by mouth mould between meeting and the wall of mouth mould, and then the Forming Quality of extruded product can be affected, add energy consumption simultaneously.
For above-mentioned situation, people improve traditional mouth mould based on traditional extruder, a kind of gas-assisted extrusion technology is proposed, by controlling high-temperature gas to be injected in mouthful mould, form the very thin air cushion layer of one deck between mouth mould inwall and polymer melt, realization adhesion non-slip shifts to the transformation that the complete slippage of non-adhesive is extruded.And the design of the key core of the These gases Extrusion Molding technology auxiliary mouth mould that is gas, mode conventional both at home and abroad at present has two kinds, is specially:
One, clearance type intake method, the airintake direction which mesohigh high-temperature gas has just entered in polymer flow passage is vertical with the flow direction of polymer melt in mouth mould, and mainly there are the following problems for the auxiliary mouth mould of this gas:
(1) in gas-assisted extrusion process, if first allow polymer melt pass through a mouthful mould, rear gas is by mouth mould, mouth mould air inlet gap place can be blocked, with gases at high pressure, polymer melt blowout herein need can be formed air cushion layer at polymer melt and mouth die side wall just now, therefore on gas pressure regulates, increase complexity;
(2) after completing gas-assisted extrusion, once first gas be closed, rear stopping extruder cohering polymer melt, mouthful mould air inlet gap place and mouth mould air chamber place can be made to have many polymer melts, can solidify by ramming material once the time has been grown, not easily utilize when next gas-assisted extrusion gases at high pressure to be blown off by polymer melt, thus affect the stability of air cushion layer, mould need be disassembled when ramming material melts completely and the polymer melt of the inside is removed, reduce operating efficiency;
(3) this mode mouth mould is only applied to polymer melt and extrudes straight down, once extrude in level (and extruding in the majority in polymer-extruded shaping production industry with level), therefore polymer melt gravity effect impels air cushion layer the latter half not easily to be formed, thus causes this process failure;
Two, hole intake method, which existing problems are as follows:
(1) the easy putty of hole, very difficult removing, and then destroy the formation of air cushion layer, to such an extent as to this mouth mould can only be used in the not high polymer melt extrusion of viscosity;
(2) in mouth mould, whole air cushion interval pressure is consistent, and the pressure of polymer melt in this region reduces gradually, like this because pressure imbalance easily causes extrudate surface quality to reduce.
Although produce sticking friction between the polymer flow passage that above-mentioned two kinds of existing gases assist mouthful mould can overcome traditional extrusion neck ring mold polymer melt and mouth mould in concrete use procedure, but it is mutually vertical that the airintake direction when gas due to HTHP just contacts with polymer melt and polymer melt extrude direction, therefore easily affect polymer product quality and also affect stability in air-assist extrusion process, and then there is very much necessity of further Improvement.
Summary of the invention
The invention provides a kind of auxiliary mouth membrane module of extruder gas of improvement, its technical problem underlying to be solved is: the auxiliary mouth mould of existing gas is when extrusion molding polymeric articles, when two kinds of fluids just contact, it is vertical that the high-temperature gas flow direction and polymer melt extrude direction, and then affect the quality of extruded product and the stability of extrusion.
For the deficiencies in the prior art, the invention provides the auxiliary mouth membrane module of a kind of gas, it comprise coaxially be arranged in order setting without gas secondary segment, air chamber section and gas secondary segment, the described centre without described air chamber section side corresponding on gas secondary segment is integrated is provided with a flow-path tube, described flow-path tube is with described coaxial without gas secondary segment, the described opposite side without described flow-path tube corresponding on gas secondary segment offers the flow channel entry point be communicated with described flow-path tube, described air chamber section is positioned at centre and axially offers flow-path tube jack and air chamber successively, described flow-path tube jack and described flow-path tube match, described flow-path tube jack is communicated with described air chamber and axially runs through described air chamber section, described air chamber section also offers the pore of air chamber described in radial communication and outer axial face, the corresponding described flow-path tube of described gas secondary segment offers hole, gas secondary flow road, the length of described flow-path tube is greater than the length of described air chamber section, be less than the length sum of described air chamber section and described gas secondary segment, described flow-path tube is inserted in hole, described gas secondary flow road with the described other end corresponding without gas secondary segment through described flow-path tube jack and air chamber, be reserved with air cushion between the radial surrounding of described flow-path tube and the surrounding hole wall in hole, described gas secondary flow road and form gap.
Be preferable over: described without gas secondary segment, air chamber section and gas secondary segment all in cylindrical shape, between the described axial end adjacent without gas secondary segment, air chamber section and gas secondary segment, sealing paste leans on, describedly offer at least two dowel holes without axially corresponding respectively on gas secondary segment, air chamber section and gas secondary segment, describedly offer at least three bolt mounting holes without axially corresponding respectively on gas secondary segment, air chamber section and gas secondary segment, described dowel hole and bolt mounting holes all stagger described pore.
To be preferable over: described flow channel entry point is coniform, and corresponding with described flow-path tube in the conical top of cone shape described flow channel entry point, describedly to form a funnel-shaped structure without gas secondary segment and flow-path tube.
Be preferable over: the central axis of the relatively described gas secondary segment in center in hole, described gas secondary flow road departs to side, the central axis level of the relatively described gas secondary segment in hole, described gas secondary flow road is deflected downwardly.
Be preferable over: described flow-path tube is than described air chamber segment length 5mm.
Be preferable over: the central axis of the relatively described gas secondary segment in center in hole, described gas secondary flow road departs from 0.25mm to side.
The present invention in the specific implementation, described without gas secondary segment, relative positioning is realized by inserting shop bolt in dowel hole between air chamber section and gas secondary segment, will without gas secondary segment through bolt mounting holes by construction bolt, air chamber section and gas secondary segment level are arranged on the head exit of extruder, without gas secondary segment, axial end adjacent between air chamber section and gas secondary segment close contact under the squeezing action of construction bolt realizes sealing, the polymer melt that extruder level is extruded enters in the flow-path tube of horizontal positioned by the described flow channel entry point without gas secondary segment, polymer melt delivers in hole, described gas secondary flow road through described flow-path tube, meanwhile, the gas of HTHP can be filled with to described air chamber from described pore, the gas of HTHP forms gap by described air chamber through described air cushion and is formed to flow on the hole wall in hole, gas secondary flow road and flow to identical air cushion with polymer melt, when installing described gas secondary segment, the central axis level of the relatively described gas secondary segment in hole, described gas secondary flow road is deflected downwardly.
Compared with prior art, the invention has the beneficial effects as follows:
1, achieving polymer melt flows to gas flow level consistent with the melt of high-temperature gas intersection, instead of it is original mutually vertical, therefore the radial surrounding of polymer melt extrudate is made all can to form uniform air cushion, improve extrusion material quality, improve air-assist extrusion process stability;
2, the flow-path tube without gas secondary segment is longer than air chamber section and inserts in hole, gas secondary flow road, due to polymer melt effect because of inertia force in extrusion, it is contrary that the polymer melt flow direction and air cushion form clearance opening direction, therefore effectively inhibits polymer melt to produce the phenomenon of polymer melt along pore adverse current when high-temperature gas stops air inlet;
3, in new extruded product process, because considering the gravity effect of polymer melt, so make the central axis level of the relative gas secondary segment in the center in hole, gas secondary flow road be deflected downwardly the headspace adding air cushion layer Lower Half, Lower Half air cushion layer is inhibit to block phenomenon.
Accompanying drawing explanation
Fig. 1 is overall structure cross-sectional schematic of the present invention.
Fig. 2 is the sectional structure decomposing schematic representation of Fig. 1.
Fig. 3 is stereo decomposing structural representation of the present invention.
Fig. 4 is another angle schematic diagram of Fig. 3.
Fig. 5 is gas secondary segment end face structure schematic diagram.
Detailed description of the invention
Below with reference to accompanying drawing 1 to 5 and preferred embodiment, the auxiliary mouth membrane module of a kind of gas that the present invention proposes specifically is illustrated.
Embodiment one: the invention provides the auxiliary mouth membrane module of a kind of gas, it comprise coaxially be arranged in order setting without gas secondary segment 1, air chamber section 2 and gas secondary segment 3, the described centre without described air chamber section 2 side corresponding on gas secondary segment 1 is integrated is provided with a flow-path tube 11, described flow-path tube 11 is with described coaxial without gas secondary segment 1, the described opposite side without described flow-path tube 11 corresponding on gas secondary segment 1 offers the flow channel entry point 12 be communicated with described flow-path tube 11, described air chamber section 2 is positioned at centre and axially offers flow-path tube jack 21 and air chamber 22 successively, described flow-path tube jack 21 matches with described flow-path tube 11, described flow-path tube jack 21 is communicated with described air chamber 22 and axially runs through described air chamber section 2, described air chamber section 2 also offers the pore 23 of air chamber 22 and outer axial face described in radial communication, one end of the corresponding outer axial face of described pore 23 offers the connection internal thread for grafting high temperature conveying tracheae, the corresponding described flow-path tube 11 of described gas secondary segment 3 offers hole, gas secondary flow road 31, the length of described flow-path tube 11 is greater than the length of described air chamber section 2, be less than the length sum of described air chamber section 2 and described gas secondary segment 3, described flow-path tube 11 is inserted in hole, described gas secondary flow road 31 with the described other end corresponding without gas secondary segment 1 through described flow-path tube jack 21 and air chamber 22, be reserved with air cushion between the radial surrounding of described flow-path tube 11 and the surrounding hole wall in hole, described gas secondary flow road 31 and form gap 32.
Embodiments of the invention one in the specific implementation, high temperature and high pressure gas is introduced into after described air chamber 22 carries out stable buffering by described pore 23, to flow between described flow-path tube 11 same direction in hole, described gas secondary flow road 31 with polymer melt and converge, the flow direction level of these two kinds of fluids of meet is consistent, wherein gas is wrapped in polymer melt to extrude together, enter hole, gas secondary flow road 31 after polymer melt and high temperature and high pressure gas converge, and together extrude.
Embodiment two: on the basis of above-described embodiment one, described without gas secondary segment 1, air chamber section 2 and gas secondary segment 3 all in cylindrical shape, between the described axial end adjacent without gas secondary segment 1, air chamber section 2 and gas secondary segment 3, sealing paste leans on, describedly offer at least two dowel holes 4 without axially corresponding respectively on gas secondary segment 1, air chamber section 2 and gas secondary segment 3, describedly offer at least three bolt mounting holes 5 without axially corresponding respectively on gas secondary segment 1, air chamber section 2 and gas secondary segment 3, described dowel hole 4 and bolt mounting holes 5 all stagger described pore 23.In the middle of the process of assembling, changing of the relative positions phenomenon is had in order to prevent each parts, adding man-hour, first the overall processing of whole mouth membrane module becomes cylinder, and make a call to two dowel holes 4 at the upper horizontal line place of mouth membrane module entirety, cut according to the height of each parts afterwards, process its internal structure, between the end face that the axis of each parts in mouth membrane module is adjacent, close contact is screwed to cross-head by construction bolt and realizes sealing.
Embodiment three: in conjunction with the embodiments one or embodiment two, described flow channel entry point 12 is in coniform, and it is corresponding with described flow-path tube 11 in the conical top of cone shape described flow channel entry point 12, describedly form a funnel-shaped structure without gas secondary segment 1 and flow-path tube 11, described flow-path tube 11 is rectangular tube, and hole, described gas secondary flow road 31 is square opening.
Embodiment four: in embodiment as above, the central axis of the relatively described gas secondary segment 3 in center in hole, described gas secondary flow road 31 departs from 0.25mm to side, and described gas secondary segment 3 is when concrete installation is implemented, the central axis level of the relatively described gas secondary segment 3 in hole, described gas secondary flow road 31 is deflected downwardly, for preventing polymer melt gravity factor from causing air cushion layer Lower Half to block, therefore add the size of hole 31, gas secondary flow road the latter half when gas secondary segment 3 designs.
Embodiment five: described flow-path tube 11 5mm longer than described air chamber section 2, in order to avoid producing polymer melt adverse current air inlet chamber 22, described flow-path tube 11 inserts 5mm through after described air chamber 22 in hole, gas secondary flow road 31, and then the opening direction making described air cushion form gap 32 flows to identical with the polymer melt in flow-path tube 11, when high-temperature gas in polymer melt extrusion stops conveying, the structure of the present embodiment in the specific implementation, polymer melt can continue to extrude along hole, gas secondary flow road under the effect of extruding inertia, and then effectively avoid in the radial overflow air admission hole 23 of polymer melt.
Described on comprehensive, technical scheme of the present invention can fully effectively complete foregoing invention object, and structural principle of the present invention and the principle of work and power are all verified in an embodiment fully, and effect and the object of expection can be reached, and embodiments of the invention also can convert according to these principles, therefore, the present invention includes all in claim mention all replacement contents in scope.Any equivalence change done in the present patent application the scope of the claims, within the scope of the claims of all genus this case applications.
Claims (6)
1. the auxiliary mouth membrane module of gas, it is characterized in that: comprise coaxially be arranged in order setting without gas secondary segment, air chamber section and gas secondary segment, the described centre without described air chamber section side corresponding on gas secondary segment is integrated is provided with a flow-path tube, described flow-path tube is with described coaxial without gas secondary segment, the described opposite side without described flow-path tube corresponding on gas secondary segment offers the flow channel entry point be communicated with described flow-path tube, described air chamber section is positioned at centre and axially offers flow-path tube jack and air chamber successively, described flow-path tube jack and described flow-path tube match, described flow-path tube jack is communicated with described air chamber and axially runs through described air chamber section, described air chamber section also offers the pore of air chamber described in radial communication and outer axial face, the corresponding described flow-path tube of described gas secondary segment offers hole, gas secondary flow road, the length of described flow-path tube is greater than the length of described air chamber section, be less than the length sum of described air chamber section and described gas secondary segment, described flow-path tube is inserted in hole, described gas secondary flow road with the described other end corresponding without gas secondary segment through described flow-path tube jack and air chamber, be reserved with air cushion between the radial surrounding of described flow-path tube and the surrounding hole wall in hole, described gas secondary flow road and form gap.
2. the auxiliary mouth membrane module of a kind of gas according to claim 1, it is characterized in that: described without gas secondary segment, air chamber section and gas secondary segment all in cylindrical shape, between the described axial end adjacent without gas secondary segment, air chamber section and gas secondary segment, sealing paste leans on, describedly offer at least two dowel holes without axially corresponding respectively on gas secondary segment, air chamber section and gas secondary segment, describedly offer at least three bolt mounting holes without axially corresponding respectively on gas secondary segment, air chamber section and gas secondary segment, described dowel hole and bolt mounting holes all stagger described pore.
3. the auxiliary mouth membrane module of a kind of gas according to claim 2, it is characterized in that: described flow channel entry point is coniform, and corresponding with described flow-path tube in the conical top of cone shape described flow channel entry point, describedly form a funnel-shaped structure without gas secondary segment and flow-path tube.
4. the auxiliary mouth membrane module of a kind of gas according to claim 3, is characterized in that: the central axis of the relatively described gas secondary segment in center in hole, described gas secondary flow road departs to side, and the central axis level of the relatively described gas secondary segment in hole, described gas secondary flow road is deflected downwardly.
5. the auxiliary mouth membrane module of a kind of gas according to claim 4, is characterized in that: described flow-path tube is than described air chamber segment length 5mm.
6. the auxiliary mouth membrane module of a kind of gas according to claim 5, is characterized in that: the central axis of the relatively described gas secondary segment in center in hole, described gas secondary flow road departs from 0.25mm to side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510221508.9A CN104943122B (en) | 2015-05-04 | 2015-05-04 | Gas auxiliary mouth die assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510221508.9A CN104943122B (en) | 2015-05-04 | 2015-05-04 | Gas auxiliary mouth die assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104943122A true CN104943122A (en) | 2015-09-30 |
| CN104943122B CN104943122B (en) | 2017-01-04 |
Family
ID=54158441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510221508.9A Expired - Fee Related CN104943122B (en) | 2015-05-04 | 2015-05-04 | Gas auxiliary mouth die assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104943122B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382078A (en) * | 2015-11-27 | 2016-03-09 | 徐州立方机电设备制造有限公司 | Pipe production pressure stabilizing device |
| CN107553857A (en) * | 2017-10-20 | 2018-01-09 | 南昌工程学院 | A kind of gas for Polymer Processing aids in micro- coextrusion mold device |
| CN110421819A (en) * | 2019-07-23 | 2019-11-08 | 南昌大学 | A kind of wire and cable clad extrusion die and method |
| CN111844686A (en) * | 2020-07-21 | 2020-10-30 | 四川大学 | Ultrahigh molecular weight polyethylene plasticizing extrusion device and extrusion method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811358A (en) * | 2010-04-16 | 2010-08-25 | 大连海事大学 | Composite metal plastic pipe extrusion molding device and molding method thereof |
| CN102825752A (en) * | 2012-08-16 | 2012-12-19 | 南昌大学 | Gas-assistant extrusion molding device |
-
2015
- 2015-05-04 CN CN201510221508.9A patent/CN104943122B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811358A (en) * | 2010-04-16 | 2010-08-25 | 大连海事大学 | Composite metal plastic pipe extrusion molding device and molding method thereof |
| CN102825752A (en) * | 2012-08-16 | 2012-12-19 | 南昌大学 | Gas-assistant extrusion molding device |
Non-Patent Citations (2)
| Title |
|---|
| 余忠等: "气辅挤出口模的研究现状", 《上饶师范学院学报》 * |
| 黄益宾等: "气体辅助挤出成型技术的研究进展", 《塑料科技》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382078A (en) * | 2015-11-27 | 2016-03-09 | 徐州立方机电设备制造有限公司 | Pipe production pressure stabilizing device |
| CN105382078B (en) * | 2015-11-27 | 2019-01-08 | 徐州立方机电设备制造有限公司 | A kind of pipe fitting production stable-pressure device |
| CN107553857A (en) * | 2017-10-20 | 2018-01-09 | 南昌工程学院 | A kind of gas for Polymer Processing aids in micro- coextrusion mold device |
| CN107553857B (en) * | 2017-10-20 | 2024-04-05 | 南昌工程学院 | Gas-assisted micro-co-extrusion forming device for polymer processing |
| CN110421819A (en) * | 2019-07-23 | 2019-11-08 | 南昌大学 | A kind of wire and cable clad extrusion die and method |
| CN111844686A (en) * | 2020-07-21 | 2020-10-30 | 四川大学 | Ultrahigh molecular weight polyethylene plasticizing extrusion device and extrusion method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104943122B (en) | 2017-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104943122A (en) | Gas-assisted mouth die assembly | |
| CN203141765U (en) | Air-assisted forming mould for automobile door handle | |
| CN104802387A (en) | Reducing mold on pipe production line | |
| CN106738757A (en) | Double-layer composite pipe extruded mould improved structure | |
| CN219543975U (en) | Three-cavity tube extrusion molding device | |
| CN103128929A (en) | Horn molding automobile door plate type injection mold with exhaust structure | |
| CN203110295U (en) | Extruding die for reinforced type composite flat cable | |
| CN101544051A (en) | Method for producing fiber reinforced plastic pressure container | |
| CN107553857B (en) | Gas-assisted micro-co-extrusion forming device for polymer processing | |
| CN203448424U (en) | Porous magnesium alloy tube extrusion die | |
| CN205997268U (en) | It is easy to the automobile lampshade mold of the demoulding | |
| CN205386927U (en) | Novel inflation film manufacturing machine die head | |
| CN201192895Y (en) | Mold head of hollow molding machine | |
| CN102152462B (en) | Pipe extruding mold | |
| CN106273273A (en) | A kind of thin-walled plastic extrusion die | |
| CN103192493A (en) | Gas-assisted forming die of automobile door handle | |
| CN107661905B (en) | Concurrent flow mold | |
| CN201506025U (en) | One blank double-cavity bottom-to-bottom squeeze blowing mould | |
| CN111216335A (en) | Inner-tube inner-separating agent spraying device | |
| CN220031119U (en) | Bar extrusion die | |
| CN206140826U (en) | Plastic pours into piece and plastic mould into | |
| CN205255467U (en) | A mould for extrusion moulding plastic open tube | |
| CN211492747U (en) | Building block type pipe extrusion forming die | |
| CN204801014U (en) | Cross filter core pipe | |
| CN2362681Y (en) | Annular double-material co-extrusion mould |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170509 Address after: School of Shangrao Normal University No. 401 Jiangxi city of Shangrao province Xinzhou 334000 Zhimin District Road Patentee after: Shangrao Normal University Address before: 401 No. 334000 Jiangxi city of Shangrao province Xinzhou District Zhimin Road Patentee before: Liu Hesheng |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170104 Termination date: 20180504 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |