CN1161219C - Atactic copolypropylene pipe with marking line and making method thereof - Google Patents
Atactic copolypropylene pipe with marking line and making method thereof Download PDFInfo
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- CN1161219C CN1161219C CNB00105841XA CN00105841A CN1161219C CN 1161219 C CN1161219 C CN 1161219C CN B00105841X A CNB00105841X A CN B00105841XA CN 00105841 A CN00105841 A CN 00105841A CN 1161219 C CN1161219 C CN 1161219C
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- annular hopper
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- pipe
- random copolymer
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Abstract
The present invention relates to a random copolymerization polypropylene (PP-R) pipe and an extrusion mold, which is mainly used in a water supply pipe in a building. The present invention is characterized in that the pipe wall of the random copolymerization polypropylene pipe is provided with 2 strips or 3 strips or 4 strips of red marking lines or green marking lines in the longitudinal direction. The present invention has the advantages that a scheme design that the raw materials of random copolymerization polypropylene are prepared to be red or green and are melted and inserted on the pipe wall by a composite mold of the random copolymerization polypropylene pipe is adopted, and the purpose that installing, maintenance and repairing personnel can conveniently recognize a cold water pipes and hot water pipes is attained. Thus, unnecessary mistakes and waste are effectively avoided, and the work efficiency and the work quality are greatly improved.
Description
The present invention relates to atactic copolymerized polypropene (PP-R) pipe and extrusion die, be mainly used in the building internal feed pipe.
Background technology of the present invention: existing polypropylene random copolymer pipe, on structural design, tube wall is that single raw material is made.It is not enough point: in construction and the house decoration, and the hot-water line of Column Layout and cold water pipe can't distinguish, and the workmen often owing to debate not error, causes to install and fails, and both waste material influenced the duration again.Secondly, because color and luster is identical, caused great inconvenience in the future maintenance and maintenance.
Purpose of design of the present invention: avoid the weak point in the background technology, design a kind of by changing the extrusion die immanent structure, coloured raw material can be melted on the tube wall that is embedded in polypropylene random copolymer pipe effectively, reach installation, maintenance, the maintainer can conveniently offer an explanation hot and cold water pipe, avoids the weak point that exists in the background technology effectively.
Design of the present invention: when making polypropylene random copolymer pipe, the atactic copolymerized polypropene raw material is modulated into redness or green vertically (along the length of pipe) direct molten being embedded in the tube wall, thereby constitutes required tag line.Indicating line can be 2 or 3 or 4, and the red line that indicates is represented hot-water line, and the green line that indicates is represented cold water pipe, and purpose makes things convenient for installation, maintenance, maintenance mans' quick operation, avoids unnecessary error and waste.The means that realize:, be designed to be able to the compound extrusion die of hot melt co-extrusion with existing single raw material extrusion die.Its organization plan: 1. a kind of polypropylene random copolymer pipe that indicates line that has, it comprises polypropylene random copolymer pipe (1), and 2 or 3 or 4 red line or green lines (2) that indicate of indicating are vertically arranged on the tube wall of polypropylene random copolymer pipe (1).Red sign line or green sign line (2) melt in the tube wall that is embedded in polypropylene random copolymer pipe (1) and do not have the convex-concave sense.2. polypropylene random copolymer pipe is extruded compound die, it comprises die body (4) and core rod (3), have annular hopper (5) on the die body (4), have 2 or 3 or 4 charging through holes (6) and logical die body inner chamber in the annular hopper, annular hopper lid (7) is enclosed within on the annular hopper, its annular hopper covers and has charging aperture (8), and its import connects plastic extruder machine mouth, the logical annular hopper (5) of outlet, and compound die master charging aperture connects plastic extruder machine mouth.Material hole (6) in the annular hopper (5) is red line or the green line raw material charging hole that indicates of indicating.In annular hopper (5) 2 or 3 or 4 material holes (6) equal vertical 2 or 3 or 4 red lines or green lines (2) that indicate of indicating on the polypropylene random copolymer pipe wall.3. a kind of preparation method that has the polypropylene random copolymer pipe that indicates line, the machine mouth of main frame and random acts on the body charging aperture of compound die simultaneously and indicates the line charging aperture, the electrical heat tracing device is arranged on the compound die, the outspoken body charging aperture of the discharging of its main frame to compound die, the discharging of random is outspoken to the sign line charging aperture on the compound die, the raw material heat fused that main frame will be made body by compound die when extruding body, the random constant speed will be modulated into after redness or the green raw material heat fused by the sign line charging aperture on the compound die and enter in the annular hopper in the compound die, charging through hole in the annular hopper continuously melts redness or green material on the tube wall that is embedded in shaping soon, thereby constitute clump to indicating line, indicate the wide of line with thin, the frequency of extruding that depends on random, frequency is high more, it is wide more to indicate line, frequency is low more, and the sign line is thin more.Clump is depended on what and layout of annular hopper charging hole to what and the layout that indicates the spacing between line that are positioned at sign line on the polypropylene random copolymer pipe.
The present invention compares with background technology, the atactic copolymerized polypropene raw material is modulated into redness or green by the molten conceptual design that is embedded in its tube wall of its compound die, reach installation, maintenance, the maintainer can conveniently offer an explanation hot and cold water pipe, avoid unnecessary error and waste effectively, improved the work quality of operating efficiency widely.
Description of drawings:
Fig. 1 has 2 structural representations that indicate the polypropylene random copolymer pipe of line.
Fig. 2 is the sectional structure schematic diagram of Fig. 1.
Fig. 3 has 3 structural representations that indicate the polypropylene random copolymer pipe of line.
Fig. 4 is the sectional structure schematic diagram of Fig. 3.
Fig. 5 has 4 structural representations that indicate the polypropylene random copolymer pipe of line.
Fig. 6 is the sectional structure schematic diagram of Fig. 5.
Fig. 7 is the structural representation of compound die.
Fig. 8 has the polypropylene random copolymer pipe manufacture craft partial block diagram that indicates line.
1～8 couple of the present invention does with narration in conjunction with the accompanying drawings.
Embodiment 1 (Fig. 1, Fig. 2 and Fig. 7): 1. 2 red line or green lines (2) that indicate of indicating are vertically arranged on the tube wall of polypropylene random copolymer pipe (1).Red sign line or green sign line (2) melt in the tube wall that is embedded in polypropylene random copolymer pipe (1) and do not have the convex-concave sense.Having the red pipe that indicates line is hot-water line, and having the green pipe that indicates line is cold water pipe.2. polypropylene random copolymer pipe is extruded compound die, it comprises die body (4) and core rod (3), have annular hopper (5) on the die body (4), have 2 charging through holes (6) and logical die body inner chamber in the annular hopper, annular hopper lid (7) is enclosed within on the annular hopper, its annular hopper covers and has charging aperture (8), and its import connects plastic extruder machine mouth, the logical annular hopper (5) of outlet, and compound die master charging aperture connects plastic extruder machine mouth.Material hole (6) in the annular hopper (5) is red line or the green line raw material charging hole that indicates of indicating.2 material holes (6) in the annular hopper (5) equal vertical 2 red line or green lines (2) that indicate of indicating on the polypropylene random copolymer pipe wall.
Embodiment 2 (Fig. 3, Fig. 4 and Fig. 7): 1. 3 red line or green lines (2) that indicate of indicating are vertically arranged on the tube wall of polypropylene random copolymer pipe (1).Red sign line or green sign line (2) melt in the tube wall that is embedded in polypropylene random copolymer pipe (1) and do not have the convex-concave sense.Having the red pipe that indicates line is hot-water line, and having the green pipe that indicates line is cold water pipe.2. polypropylene random copolymer pipe is extruded compound die, it comprises die body (4) and core rod (3), have annular hopper (5) on the die body (4), have 3 charging through holes (6) and logical die body inner chamber in the annular hopper, annular hopper lid (7) is enclosed within on the annular hopper, its annular hopper covers and has charging aperture (8), and its import connects plastic extruder machine mouth, the logical annular hopper (5) of outlet, and compound die master charging aperture connects plastic extruder machine mouth.Material hole (6) in the annular hopper (5) is red line or the green line raw material charging hole that indicates of indicating.3 material holes (6) in the annular hopper (5) equal vertical 3 red line or green lines (2) that indicate of indicating on the polypropylene random copolymer pipe wall.
Embodiment 3 (Fig. 5, Fig. 6 and Fig. 7): 1. 4 red line or green lines (2) that indicate of indicating are vertically arranged on the tube wall of polypropylene random copolymer pipe (1).Red sign line or green sign line (2) melt in the tube wall that is embedded in polypropylene random copolymer pipe (1) and do not have the convex-concave sense.Having the red pipe that indicates line is hot-water line, and having the green pipe that indicates line is cold water pipe.2. polypropylene random copolymer pipe is extruded compound die, it comprises die body (4) and core rod (3), have annular hopper (5) on the die body (4), have 4 charging through holes (6) and logical die body inner chamber in the annular hopper, annular hopper lid (7) is enclosed within on the annular hopper, its annular hopper covers and has charging aperture (8), and its import connects plastic extruder machine mouth, the logical annular hopper (5) of outlet, and compound die master charging aperture connects plastic extruder machine mouth.Material hole (6) in the annular hopper (5) is red line or the green line raw material charging hole that indicates of indicating.4 material holes (6) in the annular hopper (5) equal vertical 4 red line or green lines (2) that indicate of indicating on the polypropylene random copolymer pipe wall.
Embodiment 4 (Fig. 1～Fig. 8): a kind of preparation method that has the polypropylene random copolymer pipe that indicates line, the machine mouth of main frame and random acts on the body charging aperture of compound die simultaneously and indicates line charging aperture (the same prior art of the mode of connection and structure, by the one skilled in the art is understood, so do not do concrete narration).Electrical heat tracing device (the same prior art of the structure of insulation) is arranged on the compound die, the outspoken body charging aperture of the discharging of its main frame to compound die, the discharging of random is outspoken to sign line charging aperture (the same prior art of the mode of connection and structure on the compound die, by the one skilled in the art is understood, so do not do concrete narration).The raw material heat fused that main frame will be made body by compound die when extruding body, the random constant speed will be modulated into after redness or the green raw material heat fused by the sign line charging aperture on the compound die and enter in the annular hopper in the compound die, charging through hole in the annular hopper continuously melts redness or green material on the tube wall that is embedded in shaping soon, thereby constitute clump to indicating line, indicate the wide of line with thin, the frequency of extruding that depends on random, frequency is high more, it is wide more to indicate line, frequency is low more, and the sign line is thin more.Random acts in the annular hopper on the compound die pressure that pressure and main frame in the charging through hole acts on compound die body charging aperture and equates or be slightly larger than main frame pressure.Clump is depended on what and layout of annular hopper charging hole to what and the layout that indicates the spacing between line that are positioned at sign line on the polypropylene random copolymer pipe.Main frame is identical with the random structure, and its operation principle and structural design are prior art, so, be not described herein at this.
Claims (5)
1, a kind of polypropylene random copolymer pipe is extruded compound die, it comprises die body (4) and core rod (3), it is characterized in that: have annular hopper (5) on the die body (4), have 2 or 3 or 4 charging through holes (6) and logical die body inner chamber in the annular hopper, annular hopper lid (7) is enclosed within on the annular hopper, its annular hopper covers to have and indicates line charging aperture (8), and its import connects plastic extruder machine mouth, the logical annular hopper (5) of outlet, and compound die master charging aperture connects plastic extruder machine mouth.
2, polypropylene random copolymer pipe according to claim 1 is extruded compound die, it is characterized in that: the material hole (6) in the annular hopper (5) is red line or the green line raw material charging hole that indicates of indicating.
3, polypropylene random copolymer pipe according to claim 1 is extruded compound die, it is characterized in that: in the annular hopper (5) 2 or 3 or 4 material holes (6) equal vertical 2 or 3 or 4 red lines or green lines (2) that indicate of indicating on the polypropylene random copolymer pipe wall.
4, a kind of preparation method that has the polypropylene random copolymer pipe that indicates line, it is characterized in that: the machine mouth of main frame and random acts on the body charging aperture of compound die simultaneously and indicates the line charging aperture, the electrical heat tracing device is arranged on the compound die, the outspoken body charging aperture of the discharging of its main frame to compound die, the discharging of random is outspoken to the sign line charging aperture on the compound die, the raw material heat fused that main frame will be made body by compound die when extruding body, the random constant speed will be modulated into after redness or the green raw material heat fused by the sign line charging aperture on the compound die and enter in the annular hopper in the compound die, charging through hole in the annular hopper continuously melts redness or green material on the tube wall that is embedded in shaping soon, vertically indicate line thereby constitute, indicate the wide of line with thin, the frequency of extruding that depends on random, frequency is high more, it is wide more to indicate line, frequency is low more, and the sign line is thin more.
5, the preparation method that has the polypropylene random copolymer pipe that indicates line according to claim 4 is characterized in that: what and the layout that indicates the spacing between line that vertically is positioned at sign line on the polypropylene random copolymer pipe depend on annular hopper charging hole how much and layout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB00105841XA CN1161219C (en) | 2000-04-07 | 2000-04-07 | Atactic copolypropylene pipe with marking line and making method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB00105841XA CN1161219C (en) | 2000-04-07 | 2000-04-07 | Atactic copolypropylene pipe with marking line and making method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1265969A CN1265969A (en) | 2000-09-13 |
| CN1161219C true CN1161219C (en) | 2004-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB00105841XA Expired - Fee Related CN1161219C (en) | 2000-04-07 | 2000-04-07 | Atactic copolypropylene pipe with marking line and making method thereof |
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| Country | Link |
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| CN (1) | CN1161219C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103770308A (en) * | 2013-12-25 | 2014-05-07 | 上海华维节水灌溉有限公司 | Manufacturing method and equipment of double layer PE (Polyethylene) pipe for irrigating |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1105742C (en) * | 2000-10-25 | 2003-04-16 | 招远市海星塑料厂 | Special material for modifying PP-R plastics and its preparing process |
| CN103909641B (en) * | 2014-03-10 | 2016-05-25 | 苏州金纬机械制造有限公司 | Solid wall pipe and Pipe making mold |
-
2000
- 2000-04-07 CN CNB00105841XA patent/CN1161219C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103770308A (en) * | 2013-12-25 | 2014-05-07 | 上海华维节水灌溉有限公司 | Manufacturing method and equipment of double layer PE (Polyethylene) pipe for irrigating |
| CN103770308B (en) * | 2013-12-25 | 2016-09-07 | 上海华维节水灌溉有限公司 | Irrigate with double-deck PE pipe preparation method and equipment thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1265969A (en) | 2000-09-13 |
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Owner name: YOU JIANMING Free format text: FORMER OWNER: KANGYUN PLASTIC INDUSTRY CO., LTD., YUHANG CITY Effective date: 20040910 |
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Effective date of registration: 20040910 Address after: 311121 No. 57 South Town canal, Hangzhou, Zhejiang, Yuhang Patentee after: You Jianming Address before: 311121 Hangzhou 02 Industrial Zone, Yuhang industrial town, West Suburbs of Zhejiang Province Patentee before: Kangyun Plastic Industry Co., Ltd., Yuhang City |
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Granted publication date: 20040811 |