CN103322340A - Double-layer co-extrusion polyethylene winding structural wall pipe and production method and equipment thereof - Google Patents
Double-layer co-extrusion polyethylene winding structural wall pipe and production method and equipment thereof Download PDFInfo
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- CN103322340A CN103322340A CN2013102098476A CN201310209847A CN103322340A CN 103322340 A CN103322340 A CN 103322340A CN 2013102098476 A CN2013102098476 A CN 2013102098476A CN 201310209847 A CN201310209847 A CN 201310209847A CN 103322340 A CN103322340 A CN 103322340A
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Abstract
The invention relates to a double-layer co-extrusion polyethylene winding structural wall pipe which is composed of an inner wall layer and an outer wall layer. The double-layer co-extrusion polyethylene winding structural wall pipe is characterized in that for the inner wall layer, double-layer sheet-shaped polyethylene strips are wound on the surface of a rotary steel core die in a spiral mode, edges of each adjacent double-layer sheet-shaped polyethylene strips are sequentially connected and fused into a continuous solid-wall pipe in a lap joint mode; and for the outer wall layer, double-layer arc-shaped polyethylene strips coat a polypropylene framework pipe together to form a double-layer tubular polyethylene strip, and the double-layer tubular polyethylene strip is wound on the outer surface of the inner wall layer in a spiral mode to form a convex reinforcing rib and is pressed at lap-joint and fusion seams of the edges of the adjacent double-layer sheet-shaped polyethylene strips in a spiral mode. According to the pipe, on the premise that the ring stiffness is guaranteed, the machining time is short, the production efficiency is high, and the application range is wide. A machining method of the pipe has the advantages of being scientific and reasonable in process and low in energy consumption. Production equipment of the pipe has the advantages of being integrally formed online, high in efficiency and stable in operation.
Description
Technical field
The invention belongs to plastic tube and processing technique field thereof, particularly a kind of double-layer coextrusion polyethylene spirally enwound structure-wall tubular product and production method and manufacturing mechanism.
Background technique
Polyethylene spirally enwound structure-wall tubular product is as main raw material(s) take high-density polyethylene resin, adopt hot winding shaping process, take the polypropylene bellows as the supplemental support pipe, the difference flat strip of extruding and moulding and arc strip, equidistantly be wrapped in rotating steel core die surface, the special construction wall pipe with higher critical external compressive resistance ability of making.For guaranteeing pipe ring stiffness, need to increase the thickness of flat strip and arc strip.The current polyethylene spirally enwound structure-wall tubular product mode of production is to form respectively flat strip and arc strip with the plastic warp over-allocation valve that an extruder is extruded melting, as increase the thickness of flat strip, and then need repeatedly twine, exist the winding time long, manufacturing efficiency is low, and cost of goods manufactured is high.The distributing valve rate of fault is high simultaneously.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of assurance pipe ring stiffness is provided, process time is short, the double-layer coextrusion polyethylene spirally enwound structure-wall tubular product that manufacturing efficiency is high.
Another object of the present invention also is to provide a kind of production method of double-layer coextrusion polyethylene spirally enwound structure-wall tubular product.
Another object of the present invention also is to provide a kind of manufacturing mechanism of double-layer coextrusion polyethylene spirally enwound structure-wall tubular product.
The present invention solves its technical problem and is achieved through the following technical solutions:
A kind of double-layer coextrusion polyethylene spirally enwound structure-wall tubular product, consisted of by inner wall layer and outer wall layer, it is characterized in that: inner wall layer is that double-layer tablets shaped polyethylene helix is wrapped on the rotating steel core die surface, and the edge of each adjacent double-layers sheet polyethylene band overlaps the continuous solid wall pipe that merges formation successively mutually; Outer wall layer is served as reasons, and double-deck arc polyethylene band is common to coat the double layered tubular polyethylene band that a polypropylene skeleton pipe forms, this double layered tubular polyethylene band spiral winding forms the evagination stiffening rib in the inner wall layer outer surface, and double layered tubular polyethylene band spiral cross-pressure melts commissure in the overlap joint of each adjacent double-layers sheet polyethylene strip belt edge.
A kind of production method of double-layer coextrusion polyethylene spirally enwound structure-wall tubular product is characterized in that: this production method comprises the steps:
⑴. adopt the flat strip of the first flat strip extruder polyethylene extrusion to form the body internal layer;
⑵. adopt the flat strip of the second flat strip extruder polyethylene extrusion to form the body clad, above-mentioned internal layer and clad form double-layer tablets shaped polyethylene band jointly through the flat rubber belting die head, and be spirally wound on the steel core drum die, and each adjacent double-layers sheet polyethylene strip belt edge overlaps fusion formation inboard wall of tube body layer successively mutually;
⑶. the first arc strip extruder polyethylene extrusion strip forms in the polypropylene skeleton pipe and coats band;
⑷. the second arc strip extruder polyethylene extrusion strip forms polypropylene skeleton pipe outer cladding band, jointly the coating of polypropylene skeleton pipe is formed double layered tubular polyethylene band through coating the band die head, this double layered tubular polyethylene band is wound in the inner wall layer outer surface and forms the evagination reinforcing rib structure, and the spiral cross-pressure melts commissure in the overlap joint of each adjacent sheet shaped polyethylene strip edge, forms outer wall layer.
A kind of manufacturing mechanism of double-layer coextrusion polyethylene spirally enwound structure-wall tubular product, comprise the first flat strip extruder, the first arc strip extruder and steel core drum die, it is characterized in that: also comprise the second flat strip extruder, the second arc strip extruder, flat rubber belting die head and coating band die head, discharge port the place ahead of the first flat strip extruder and the second flat strip extruder is jointly accepted the flat rubber belting die head is installed, and discharge port the place ahead of the first arc strip extruder and the second arc strip extruder is jointly accepted to install and coated the band die head.
And described flat rubber belting die head one side is shaped with the import of body clad and the import of body internal layer, and the opposite side of flat strip die head is shaped with the outlet of body clad and the outlet of body internal layer.
And, be shaped with on the sidewall of described coating with die head and coat the band import in the outer cladding band import of polypropylene skeleton pipe and the polypropylene skeleton pipe, coat end with die head and be shaped with in the polypropylene skeleton pipe outer cladding band outlet of annular and the polypropylene skeleton pipe and coat the band outlet.
Advantage of the present invention and beneficial effect are:
1, double-layer coextrusion polyethylene spirally enwound structure-wall tubular product of the present invention, adopt the first flat strip extruder can use respectively different polyethylene raw material with the second flat strip extruder, comprise different colours, meet the need of market, and the strip that two extruders can be extruded different-thickness superposes, form the requirement that different thickness satisfies product rigidity, once-through is enhanced productivity.
2, double-layer coextrusion polyethylene spirally enwound structure-wall tubular product of the present invention, the 3rd arc strip extruder and the 4th arc strip extruder, can use respectively different polyethylene raw material to comprise different colours, meet the need of market, two extruders can be extruded the strip stack of different-thickness simultaneously, form different thickness and satisfy production requirement, once-through is enhanced productivity.
3, the production method of double-layer coextrusion polyethylene spirally enwound structure-wall tubular product of the present invention and manufacturing mechanism, one-step moulding double-layer sheet polyethylene band forms inner wall layer online, one-step moulding double-layer tubular polyethylene band, has simple process, workable, efficient is high, has shortened the production time, has improved manufacturing efficiency.
4, tubing of the present invention is guaranteeing that process time is short under the ring stiffness prerequisite, and manufacturing efficiency is high, and Applicable scope is extensive; It is reasonable that its processing method has craft science, the advantage that energy-output ratio is little, and its manufacturing mechanism has one-body molded online, and efficient is high, the advantage of stable working.
Description of drawings
Fig. 1 is the structural representation (partial cross-sectional cut-away view) of tubing of the present invention;
Fig. 2 is the structural representation of tubing process equipment of the present invention;
Fig. 3 is the structural representation of the flat rubber belting die head of tubing process equipment of the present invention;
Fig. 4 is that the coating of tubing process equipment of the present invention is with the structural representation of die head.
Description of drawings
1-body clad, 2-body internal layer, 3-polypropylene skeleton pipe outer cladding band, coat band in the 4-polypropylene skeleton pipe, the 5-inner wall layer, the 6-outer wall layer, 7-steel core drum die, 8-the first flat strip extruder, 9-the second flat strip extruder, 10-the first arc strip extruder, 11-the second arc strip extruder, 12-flat rubber belting die head, 13-coats the band die head, the import of 14-body clad, the import of 15-body internal layer, the outlet of 16-body clad, the outlet of 17-body internal layer, the import of 18-polypropylene skeleton pipe outer cladding band, coat the band import in the 19-polypropylene skeleton pipe, the outlet of 20-polypropylene skeleton pipe outer cladding band, coat the band outlet in the 21-polypropylene skeleton pipe.
Embodiment
The invention will be further described below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
A kind of double-layer coextrusion polyethylene spirally enwound structure-wall tubular product, consisted of by inner wall layer 5 and outer wall layer 6, its innovation is: inner wall layer is that double-layer tablets shaped polyethylene helix is wrapped on the rotating steel core die surface, and the edge of each adjacent double-layers sheet polyethylene band overlaps the continuous solid wall pipe that merges formation successively mutually; Outer wall layer is served as reasons, and double-deck arc polyethylene band is common to coat the double layered tubular polyethylene band that a polypropylene skeleton pipe forms, this double layered tubular polyethylene band spiral winding forms the evagination stiffening rib in the inner wall layer outer surface, and double layered tubular polyethylene band spiral cross-pressure melts commissure in the overlap joint of each adjacent double-layers sheet polyethylene strip belt edge.
A kind of production method of double-layer coextrusion polyethylene spirally enwound structure-wall tubular product, this production method comprises the steps:
⑴. adopt the flat strip of the first flat strip extruder 8 polyethylene extrusions to form body internal layer 2;
⑵. adopt the flat strip of the second flat strip extruder 9 polyethylene extrusions to form body clad 1, above-mentioned internal layer and clad are through the flat rubber belting die head 12 common double-layer tablets shaped polyethylene bands that form, and be spirally wound on the steel core drum die 7, and each adjacent double-layers sheet polyethylene strip belt edge overlaps fusion formation inboard wall of tube body layer successively mutually.
⑶. the first arc strip extruder 10 polyethylene extrusion strips form to coat in the polypropylene skeleton pipe is with 4,
⑷. the second arc strip extruder 11 polyethylene extrusion strips form polypropylene skeleton pipe outer cladding band 3, jointly the coating of polypropylene skeleton pipe are formed double layered tubular polyethylene band through coating band die head 13.
This double layered tubular polyethylene band is wound in the inner wall layer outer surface and forms the evagination reinforcing rib structure, and the spiral cross-pressure melts commissure in the overlap joint of each adjacent sheet shaped polyethylene strip edge, the formation outer wall layer.
A kind of manufacturing mechanism of double-layer coextrusion polyethylene spirally enwound structure-wall tubular product, comprise the first flat strip extruder, the first arc strip extruder and steel core drum die, it also comprises the second flat strip extruder, the second arc strip extruder, flat rubber belting die head and coating band die head, discharge port the place ahead of the first flat strip extruder and the second flat strip extruder is jointly accepted the flat rubber belting die head is installed, and discharge port the place ahead of the first arc strip extruder and the second arc strip extruder is jointly accepted to install and coated the band die head.The first side of flat material strip mold is shaped with body clad import 14 and body internal layer import 15, and the opposite side of flat strip die head is shaped with the outlet 16 of body clad and body internal layer outlet 17.Be shaped with on the sidewall of coating with die head and coat band import 19 in the import 18 of polypropylene skeleton pipe outer cladding band and the polypropylene skeleton pipe, coat end with die head and be shaped with in the polypropylene skeleton pipe outer cladding band outlet 20 of annular and the polypropylene skeleton pipe and coat band outlet 21.
Although disclose for the purpose of illustration embodiments of the invention and accompanying drawing, but it will be appreciated by those skilled in the art that: in the spirit and scope that do not break away from the present invention and claims, various replacements, variation and modification all are possible, therefore, scope of the present invention is not limited to embodiment and the disclosed content of accompanying drawing.
Claims (5)
1. double-layer coextrusion polyethylene spirally enwound structure-wall tubular product, consisted of by inner wall layer and outer wall layer, it is characterized in that: inner wall layer is that double-layer tablets shaped polyethylene helix is wrapped on the rotating steel core die surface, and the edge of each adjacent double-layers sheet polyethylene band overlaps the continuous solid wall pipe that merges formation successively mutually; Outer wall layer is served as reasons, and double-deck arc polyethylene band is common to coat the double layered tubular polyethylene band that a polypropylene skeleton pipe forms, this double layered tubular polyethylene band spiral winding forms the evagination stiffening rib in the inner wall layer outer surface, and double layered tubular polyethylene band spiral cross-pressure melts commissure in the overlap joint of each adjacent double-layers sheet polyethylene strip belt edge.
2. the production method of a double-layer coextrusion polyethylene spirally enwound structure-wall tubular product, it is characterized in that: this production method comprises the steps:
⑴. adopt the flat strip of the first flat strip extruder polyethylene extrusion to form the body internal layer;
⑵. adopt the flat strip of the second flat strip extruder polyethylene extrusion to form the body clad, above-mentioned internal layer and clad form double-layer tablets shaped polyethylene band jointly through the flat rubber belting die head, and be spirally wound on the steel core drum die, and each adjacent double-layers sheet polyethylene strip belt edge overlaps fusion formation inboard wall of tube body layer successively mutually;
⑶. the first arc strip extruder polyethylene extrusion strip forms in the polypropylene skeleton pipe and coats band;
⑷. the second arc strip extruder polyethylene extrusion strip forms polypropylene skeleton pipe outer cladding band, jointly the coating of polypropylene skeleton pipe is formed double layered tubular polyethylene band through coating the band die head, this double layered tubular polyethylene band is wound in the inner wall layer outer surface and forms the evagination reinforcing rib structure, and the spiral cross-pressure melts commissure in the overlap joint of each adjacent sheet shaped polyethylene strip edge, forms outer wall layer.
3. the manufacturing mechanism of a double-layer coextrusion polyethylene spirally enwound structure-wall tubular product, comprise the first flat strip extruder, the first arc strip extruder and steel core drum die, it is characterized in that: also comprise the second flat strip extruder, the second arc strip extruder, flat rubber belting die head and coating band die head, discharge port the place ahead of the first flat strip extruder and the second flat strip extruder is jointly accepted the flat rubber belting die head is installed, and discharge port the place ahead of the first arc strip extruder and the second arc strip extruder is jointly accepted to install and coated the band die head.
4. the manufacturing mechanism of double-layer coextrusion polyethylene spirally enwound structure-wall tubular product according to claim 3, it is characterized in that: described flat rubber belting die head one side is shaped with the import of body clad and the import of body internal layer, and the opposite side of flat strip die head is shaped with the outlet of body clad and the outlet of body internal layer.
5. the manufacturing mechanism of double-layer coextrusion polyethylene spirally enwound structure-wall tubular product according to claim 3, it is characterized in that: be shaped with on the sidewall of described coating with die head and coat the band import in the outer cladding band import of polypropylene skeleton pipe and the polypropylene skeleton pipe, coat end with die head and be shaped with in the polypropylene skeleton pipe outer cladding band outlet of annular and the polypropylene skeleton pipe and coat the band outlet.
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| CN201310209847.6A CN103322340B (en) | 2013-05-30 | 2013-05-30 | Double-layer coextrusion polyethylene spirally enwound structure-wall tubular product and production method thereof and manufacturing mechanism |
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| CN201310209847.6A CN103322340B (en) | 2013-05-30 | 2013-05-30 | Double-layer coextrusion polyethylene spirally enwound structure-wall tubular product and production method thereof and manufacturing mechanism |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925431A (en) * | 2014-03-31 | 2014-07-16 | 天津业和科技有限公司 | Polythene glass fiber winding structure wall tube stock and production method thereof |
| CN104879579A (en) * | 2015-05-28 | 2015-09-02 | 天津业和科技有限公司 | Polyethylene special pipe with winding structure wall and production method of polyethylene special pipe |
| CN107379575A (en) * | 2017-09-06 | 2017-11-24 | 青岛克拉波罗塑料科技有限公司 | Glass winding structure wall pipe process equipment and its processing method |
| CN110056718A (en) * | 2019-05-27 | 2019-07-26 | 四川胜煌创世管业有限公司 | High abrasion composite reinforced polyethylene structure wall winding tube and its manufacturing method |
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| CN203273060U (en) * | 2013-05-30 | 2013-11-06 | 天津业和科技有限公司 | Double-layer co-extrusion polyethylene winding structure wall tube and production equipment thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20100170590A1 (en) * | 2007-05-23 | 2010-07-08 | Uponor Innovation Ab | Manufacturing a piping element, and piping element |
| CN202302370U (en) * | 2011-10-24 | 2012-07-04 | 韩路平 | Pipe with walls wound with reinforced polyethylene and production device thereof |
| CN102644807A (en) * | 2012-04-27 | 2012-08-22 | 华创天元实业发展有限责任公司 | Middle-and-low pressure delivery seamless helical corrugated composite pipe and forming method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925431A (en) * | 2014-03-31 | 2014-07-16 | 天津业和科技有限公司 | Polythene glass fiber winding structure wall tube stock and production method thereof |
| CN103925431B (en) * | 2014-03-31 | 2016-09-14 | 天津业和科技有限公司 | Polyethylene glass winding structure wall pipe and production method thereof |
| CN104879579A (en) * | 2015-05-28 | 2015-09-02 | 天津业和科技有限公司 | Polyethylene special pipe with winding structure wall and production method of polyethylene special pipe |
| CN107379575A (en) * | 2017-09-06 | 2017-11-24 | 青岛克拉波罗塑料科技有限公司 | Glass winding structure wall pipe process equipment and its processing method |
| CN107379575B (en) * | 2017-09-06 | 2024-03-01 | 青岛新大成塑料机械有限公司 | Glass fiber winding structure wall pipe machining equipment and machining method thereof |
| CN110056718A (en) * | 2019-05-27 | 2019-07-26 | 四川胜煌创世管业有限公司 | High abrasion composite reinforced polyethylene structure wall winding tube and its manufacturing method |
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| CN103322340B (en) | 2015-12-09 |
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