CN103213265A - Extruder head of foaming flat belt of supercritical carbon dioxide/polypropylene extruder - Google Patents
Extruder head of foaming flat belt of supercritical carbon dioxide/polypropylene extruder Download PDFInfo
- Publication number
- CN103213265A CN103213265A CN2013101206492A CN201310120649A CN103213265A CN 103213265 A CN103213265 A CN 103213265A CN 2013101206492 A CN2013101206492 A CN 2013101206492A CN 201310120649 A CN201310120649 A CN 201310120649A CN 103213265 A CN103213265 A CN 103213265A
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- Prior art keywords
- pipe die
- die
- pipe
- sleeve
- extruder
- 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.)
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Links
- 238000005187 foaming Methods 0.000 title claims abstract description 35
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 19
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 15
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 15
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 15
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 239000004033 plastic Substances 0.000 abstract description 8
- 229920003023 plastic Polymers 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000004513 sizing Methods 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000006260 foam Substances 0.000 description 4
- 206010000269 abscess Diseases 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 235000012054 meals Nutrition 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Images
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
- 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
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- 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
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
-
- 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
- B29C48/362—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using static mixing devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention belongs to the technical field of plastic extruders, and relates to an extruder head of a foaming flat belt of a supercritical carbon dioxide/polypropylene extruder. A pipe die rear die sleeve is fixedly connected with a pipe die front die sleeve; a pipe die positioning sleeve is installed on the rear side of the inner cavity of the pipe die rear die sleeve; a pipe die core is installed on the front side of the inner cavity of the pipe die rear die sleeve; the front part of the pipe die core is arranged in the pipe die front die sleeve; exhaust rods communicated with the central hole of the a pipe die core are installed on the pipe die rear die sleeve and the pipe die core; a pressure regulating valve is connected with the exhaust rod through a screw; a frustum part formed by necking and a straight pipe part are arranged at the head of the pipe die core; homogenizing cavities are formed between the pipe die core and the pipe die rear die sleeve and between the pipe die core and the pipe die front die sleeve; a compressing cavity is formed between the frustum part of the pipe die core and the pipe die front die sleeve; a sizing cavity is formed between the straight pipe part of the pipe die core and the pipe die front die sleeve; and the homogenizing cavities, the compressing cavity and the sizing cavity are communicated with the inner cavity of the pipe die positioning sleeve. The extruder head has the advantages that the surface of the prepared PP foaming flat belt is smooth, the width of the surface is uniform, the surface has matte effect, and the yield is high.
Description
Technical field
The invention belongs to the plastic extruder technical field, refer in particular to the extruder head of the foaming bandlet of a kind of supercritical carbon dioxide/polypropylene extruder.
Background technology
Foamed plastics is the focusing body that gas dispersion forms in solid polymer, is to use higher products similar.PP(polypropylene wherein), is widely applied to and makes heat insulation and amortizing packaging material etc. in the field of high standards such as automobile, electronics, office stationary, high performance requirements with its higher rigidity, excellent mechanical property, good chemistry and heat endurance and good environmental adaptation with advantage such as be easy to reclaim and become the preferred material of foamed plastics.Because foamed plastics, particularly PP(polypropylene) be a kind of easy degraded, good rigidly, environmentally friendly material heat-resisting and that easily reclaim, so in the handicraft field, particularly the application on the meal pad begins extensively to replace the plastics table linen.Bandlet is its essential raw material in the material that fills up with braiding meal and make, and has particularly alleviated weight and has greatly reduced cost after the foaming, so more and more be used widely.
Extruder is to be used for rubber, plastics mix continuously, the device of extrusion molding, its head is the critical piece of extruder, stock mould is housed in the head, head makes the equal one from the plastics of extruder and blowing agent change the parallel lines motion into by rotatablely moving, pass through in the importing stock mould of head neck uniform and stable along certain runner, and give the necessary briquetting pressure of homogeneous system moulding, make its system that becomes homogeneous and stop nucleation and foaming in machine, the shape of material finalized the design and stable, simultaneously to its finishing, thereby it is more accurate to obtain sectional dimension, the continuous foamed material of cross sectional shape unanimity.
Because the supercritical pressure of carbon dioxide is very high, and for physical blowing, the polymer/supercritical carbon dioxide systems that becomes homogeneous phase in extruder and head is very crucial, so head and runner design thereof also just seem crucial especially.After this system went out head, pressure discharged suddenly, therefore can cause foaming process to be difficult to control.Consequent effect is that expanded material occurs that surface irregularity, wash boarding, feel are hard, abscess merges and breaks and surface-brightening etc.In addition, because foaming process is wayward, and build-up of pressure is inhomogeneous, thereby causes the difference of foam degrees.It is inconsistent at surface quality, expansion ratio, cell size and uniformity, feel and matt effect that the consequence that directly causes is exactly the bandlet of preparing, and causes yield rate extremely low.
Requirement for foaming bandlet moulding is surfacing, do not have obvious striped, soft and have matt effect, the conventional flat die head of its extruder, common tubulose die head or blowpipe die head all are difficult to reach requirement.Because traditional flat-die head and traditional tubulose die head are because the rate of closed hole that produces in foaming process is very high, and the less feel that causes of expansion ratio is stone, and the tearing strength extreme difference; Traditional tubulose die head is extruded is a foaming pipe, and the difference of foam degrees causes the diameter difference of the pipe of extruding, thereby can make the width of the bandlet of preparation be difficult to the tolerance that reaches less, and therefore, yield rate also reduces greatly.Common blowpipe die head is because what produce is open-celled structure fully, can generate a hollow tube rapidly after going out die head, and therefore, the internal stress of generation is big, causes the surface smoothness of foaming bandlet bad, striped many and do not have matt effect.Because the tolerance of staying in the hollow tube in process of production is uncontrollable, therefore, the diameter of the hollow tube that generates at different time differs very big, thereby causes production technology can't stablize control and be difficult to obtain the uniform product of width, and yield rate is extremely low.
Summary of the invention
The extruder head that the purpose of this invention is to provide the foaming bandlet of a kind of supercritical carbon dioxide/polypropylene extruder, make the foaming bandlet of preparing surfacing, do not have obvious striped, soft, width evenly, have a matt effect, guarantee in the production preparation process, to keep the diameter of foaming hollow tube consistent all the time by the stable gas pressure in the automatic foaming hollow tube of controlling out behind the tubulose head simultaneously, thereby the width uniformity of the foaming bandlet that assurance is prepared, the yield rate height.
The object of the present invention is achieved like this:
The extruder head of the foaming bandlet of supercritical carbon dioxide/polypropylene extruder, die sleeve is fixedlyed connected with die sleeve before the pipe die behind the pipe die, the rear side of die sleeve inner chamber is equipped with the pipe die positioning sleeve behind the pipe die, installed in front has the pipe die core rod, the front portion of pipe die core rod is arranged in the preceding die sleeve of pipe die, on die sleeve and the pipe die core rod air exhaust rod that is communicated with pipe die core rod centre bore is installed behind the pipe die, be bolted with pressure regulator valve on the air exhaust rod, the head outer surface of pipe die core rod be provided with frustum portion that necking down forms with the identical straight sections of extending forward of external diameter of the minor diameter part of frustum portion, be formed with the homogenizing chamber between the inner surface of die sleeve before die sleeve and the pipe die behind the outer surface of pipe die core rod and the pipe die, be formed with compression chamber between the inner surface of die sleeve before the outer surface of pipe die core rod frustum portion and the pipe die, be formed with typing chamber, homogenizing chamber before the outer surface of pipe die core rod straight sections and the pipe die between the inner surface of die sleeve, compression chamber, the inner chamber of typing chamber and the pipe die positioning sleeve formation inner flow passage that is interconnected.
Die sleeve is spirally connected by screw with the preceding die sleeve of pipe die and is connected, locatees by alignment pin behind the above-mentioned pipe die of stating.
Above-mentioned automatic pressure regulator can be the pressure valve that opens or closes automatically under the preset pressure of setting up.
Above-mentioned automatic pressure regulator is overflow valve or safety valve.
Above-mentioned pipe die core rod stretches out outside the front end face of pipe die front mould cover.
The present invention gives prominence to compared to existing technology and beneficial technical effects is:
1, the present invention can enter air exhaust rod with the hole of the gas in the foaming hollow tube of extruding by pipe die by pipe die core rod center by air exhaust rod, be discharged in the atmosphere by automatic pressure regulator again, change pressure in the foaming hollow tube by the amount that changes the gas in the foaming hollow tube at any time.The size of pressure can directly cause the foaming size of diameter of hollow tube.And automatic pressure regulator pre-sets pressure according to process conditions, after the pressure of foaming in the hollow tube is greater than preset pressure, automatic pressure regulator can open automatically and the hollow tube that will foam in unnecessary gas be discharged in the atmosphere and the interior pressure of reduction hollow tube; When pressure was lower than the default pressure of automatic pressure regulator, automatic pressure regulator can be closed automatically, thereby the pressure in the foaming hollow tube is raise.Therefore, to foam gas pressure in the hollow tube of interaction energy by automatic pressure regulator remains in the minimum scope and fluctuates, this scope is only relevant with the precision of automatic pressure regulator, therefore, it is controlled fully to make this foaming process realize, the width of the foaming bandlet of preparing is even, and width tolerance is very little, thereby has improved yield rate greatly.
2, tubulose head of the present invention is formed long runner by forward and backward die sleeve of pipe die and pipe die core rod, this runner has very long homogenizing zone and certain typing section, thereby guarantees that supercritical carbon dioxide/polypropylene keeps homogeneous system in extruder and head.The homogenizing zone length that increases the tubulose head can become rectilinear motion at this preferably with the screw of material, thereby guarantees the homogeneity of foaming.Can make by this design that abscess uniformity, cell size good uniformity, the expansion ratio of the bandlet of preparing are accurately controlled, rate of closed hole is higher, the goods of micropore abscess.And the effect that is characterized as surfacing, good pliable and tough, higher tearing strength, soft, the no obvious striped in surface and surperficial inferior light that shows from macroscopic view.
3, the present invention is applicable to the extruder head of making high-quality PP formed product equipment.
Description of drawings
Fig. 1 is a structure cutaway view of the present invention.
Fig. 2 is the local amplification view of stock mould inner flow passage structure of the present invention.
The specific embodiment
The present invention is further described with specific embodiment below in conjunction with accompanying drawing, referring to Fig. 1-Fig. 2:
The extruder head of the foaming bandlet of supercritical carbon dioxide/polypropylene extruder, die sleeve 2 is fixedlyed connected with die sleeve 5 before the pipe die behind the pipe die, the rear side of die sleeve 2 inner chambers is equipped with pipe die positioning sleeve 1 behind the pipe die, installed in front has pipe die core rod 3, the front portion of pipe die core rod 3 is arranged in the preceding die sleeve 5 of pipe die, on die sleeve 1 and the pipe die core rod 3 air exhaust rod 11 that is communicated with pipe die core rod 3 centre bores 10 is installed behind the pipe die, be bolted with pressure regulator valve 12 on the air exhaust rod 11, the head outer surface of pipe die core rod 3 be provided with frustum portion 31 that necking down forms with the identical straight sections 32 of extending forward of external diameter of the minor diameter part of frustum portion 31, be formed with homogenizing chamber 9 between the inner surface of die sleeve 5 before die sleeve 2 and the pipe die behind the outer surface of pipe die core rod 3 and the pipe die, be formed with compression chamber 7 between the inner surface of die sleeve 5 before the outer surface of pipe die core rod frustum portion 31 and the pipe die, be formed with typing chamber 6 before the outer surface of pipe die core rod straight sections 32 and the pipe die between the inner surface of die sleeve 5, homogenizing chamber 9, compression chamber 7, the inner chamber of typing chamber 6 and the pipe die positioning sleeve 1 formation inner flow passage that is interconnected, set up the required pressure of foaming bandlet moulding to guarantee suitable rate of closed hole by this inner flow passage, cell size and structure, thus prepare surfacing, good is pliable and tough, higher tearing strength, soft, the bandlet goods of the effect of no obvious striped in surface and surperficial inferior light.
Die sleeve 2 is spirally connected by screw 8 with the preceding die sleeve 5 of pipe die and is connected, locatees by alignment pin 4 behind the above-mentioned pipe die of stating.
Above-mentioned automatic pressure regulator 12 can be the pressure valve that opens or closes automatically under the preset pressure of setting up.
Above-mentioned automatic pressure regulator 12 is overflow valve or safety valve, but is not limited to overflow valve or safety valve.
Above-mentioned pipe die core rod 3 stretches out outside the front end face 51 of pipe die front mould cover 5, so that typing reaches the guiding of extruding for product.
The foregoing description is preferred embodiment of the present invention only, is not to limit protection scope of the present invention according to this, so: all equivalences of doing according to structure of the present invention, shape, principle change, and all should be covered by within protection scope of the present invention.
Claims (5)
1. the extruder head of the foaming bandlet of supercritical carbon dioxide/polypropylene extruder, it is characterized in that: die sleeve is fixedlyed connected with die sleeve before the pipe die behind the pipe die, the rear side of die sleeve inner chamber is equipped with the pipe die positioning sleeve behind the pipe die, installed in front has the pipe die core rod, the front portion of pipe die core rod is arranged in the preceding die sleeve of pipe die, on die sleeve and the pipe die core rod air exhaust rod that is communicated with pipe die core rod centre bore is installed behind the pipe die, be bolted with pressure regulator valve on the air exhaust rod, the head outer surface of pipe die core rod be provided with frustum portion that necking down forms with the identical straight sections of extending forward of external diameter of the minor diameter part of frustum portion, be formed with the homogenizing chamber between the inner surface of die sleeve before die sleeve and the pipe die behind the outer surface of pipe die core rod and the pipe die, be formed with compression chamber between the inner surface of die sleeve before the outer surface of pipe die core rod frustum portion and the pipe die, be formed with typing chamber, homogenizing chamber before the outer surface of pipe die core rod straight sections and the pipe die between the inner surface of die sleeve, compression chamber, the inner chamber of typing chamber and the pipe die positioning sleeve formation inner flow passage that is interconnected.
2. the extruder head of the foaming bandlet of supercritical carbon dioxide according to claim 1/polypropylene extruder is characterized in that: die sleeve is spirally connected by screw with the preceding die sleeve of pipe die and is connected, locatees by alignment pin behind the described pipe die.
3. the extruder head of the foaming bandlet of supercritical carbon dioxide according to claim 1/polypropylene extruder is characterized in that, automatic pressure regulator can be the pressure valve that opens or closes automatically under the preset pressure of setting up.
4. the extruder head of the foaming bandlet of supercritical carbon dioxide according to claim 3/polypropylene extruder is characterized in that: described automatic pressure regulator is overflow valve or safety valve.
5. according to the extruder head of the foaming bandlet of each described supercritical carbon dioxide/polypropylene extruder of claim 1-4, it is characterized in that: described pipe die core rod stretches out outside the front end face of pipe die front mould cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310120649.2A CN103213265B (en) | 2013-04-08 | 2013-04-08 | The extruder head of the foaming bandlet of supercritical carbon dioxide/polypropylene extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310120649.2A CN103213265B (en) | 2013-04-08 | 2013-04-08 | The extruder head of the foaming bandlet of supercritical carbon dioxide/polypropylene extruder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103213265A true CN103213265A (en) | 2013-07-24 |
| CN103213265B CN103213265B (en) | 2015-08-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310120649.2A Expired - Fee Related CN103213265B (en) | 2013-04-08 | 2013-04-08 | The extruder head of the foaming bandlet of supercritical carbon dioxide/polypropylene extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103213265B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112297382A (en) * | 2020-08-31 | 2021-02-02 | 扬州吉山津田光电科技有限公司 | Injection molding equipment of hollow pipe fitting |
| CN112297383A (en) * | 2020-08-31 | 2021-02-02 | 扬州吉山津田光电科技有限公司 | Hollow pipe injection molding equipment with wide application range |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101480831A (en) * | 2009-01-19 | 2009-07-15 | 北京中拓机械有限责任公司 | Supercritical fluid aerating powder conveying device and control method |
| CN102615805A (en) * | 2012-03-22 | 2012-08-01 | 大连理工大学 | Right-angle extrusion die for multi-cavity plastic micro-pipe |
| CN203198218U (en) * | 2013-04-08 | 2013-09-18 | 天台县富力产业用布厂 | Extrusion head of foaming flat ribbon of supercritical carbon dioxide/polypropylene extruder |
-
2013
- 2013-04-08 CN CN201310120649.2A patent/CN103213265B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101480831A (en) * | 2009-01-19 | 2009-07-15 | 北京中拓机械有限责任公司 | Supercritical fluid aerating powder conveying device and control method |
| CN102615805A (en) * | 2012-03-22 | 2012-08-01 | 大连理工大学 | Right-angle extrusion die for multi-cavity plastic micro-pipe |
| CN203198218U (en) * | 2013-04-08 | 2013-09-18 | 天台县富力产业用布厂 | Extrusion head of foaming flat ribbon of supercritical carbon dioxide/polypropylene extruder |
Non-Patent Citations (1)
| Title |
|---|
| 杨经涛等: "《发泡塑料制品与加工》", 31 July 2012, 化学工业出版社, article "泡沫塑料发泡方法及成型原理和新技术", pages: 156-158 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112297382A (en) * | 2020-08-31 | 2021-02-02 | 扬州吉山津田光电科技有限公司 | Injection molding equipment of hollow pipe fitting |
| CN112297383A (en) * | 2020-08-31 | 2021-02-02 | 扬州吉山津田光电科技有限公司 | Hollow pipe injection molding equipment with wide application range |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103213265B (en) | 2015-08-12 |
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Owner name: TIANTAI CHENGYI NEW MATERIAL CO., LTD. Free format text: FORMER OWNER: TIANTAI FULI INDUSTRIAL CLOTH FACTORY Effective date: 20141201 |
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Effective date of registration: 20141201 Address after: 317200, Tiantai County, Zhejiang province Baihe Town under the road Applicant after: The sincere new material Co., Ltd of balcony Address before: 317200, Zhejiang City, Taizhou province Tiantai County Baihe Town under the road Applicant before: Tiantai County Fuli Industrial Cloth Factory |
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Effective date of registration: 20170504 Address after: 6, No. 28, building 2, building 1, 1 West Avenue, Qingyang District, Sichuan, Chengdu, 610000 Patentee after: Liu Ke Address before: 317200, Tiantai County, Zhejiang province Baihe Town under the road Patentee before: The sincere new material Co., Ltd of balcony |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20150812 Termination date: 20210408 |