CN103322340B - Double-layer coextrusion polyethylene spirally enwound structure-wall tubular product and production method thereof and manufacturing mechanism - Google Patents
Double-layer coextrusion polyethylene spirally enwound structure-wall tubular product and production method thereof and manufacturing mechanism Download PDFInfo
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Abstract
The present invention relates to a kind of double-layer coextrusion polyethylene spirally enwound structure-wall tubular product, be made up of 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 in pivotal steel core mould on the surface, and the edge of each adjacent double-layers sheet polyethylene tape overlaps the continuous solid wall pipe merging and formed successively mutually; Outer wall layer is by the double-deck arc polyethylene tape double layered tubular polyethylene tape that formed of a coated polypropylene backbone pipe jointly, this double layered tubular polyethylene tape is helically wound around inner wall layer outer surface and forms evagination stiffening rib, and double layered tubular polyethylene tape spiral cross-pressure melts commissure in the overlap joint of each adjacent double-layers sheet polyethylene strip belt edge.Tubing of the present invention is under guarantee ring stiffness prerequisite, and process time is short, and manufacturing efficiency is high, applied widely; It is reasonable that its processing method has craft science, and the advantage that energy-output ratio is little, its manufacturing mechanism has one-body molded online, and efficiency is high, the advantage of stable working.
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 thereof and manufacturing mechanism.
Background technique
Polyethylene spirally enwound structure-wall tubular product take high-density polyethylene resin as main raw material(s), adopt hot winding shaping process, with polypropylene bellows for supplemental support pipe, the flat material strip of extruding and moulding and arc material strip respectively, equidistantly be wrapped in pivotal steel core die surface, the special construction wall pipe with higher critical external compressive resistance ability made.For ensureing pipe ring stiffness, need the thickness increasing flat material strip and arc material strip.The current polyethylene spirally enwound structure-wall tubular product mode of production forms flat material strip and arc material strip respectively with the plastic warp over-allocation valve that melting extruded by an extruder, as increased the thickness of flat material strip, then need repeatedly to be wound around, there is the winding time long, manufacturing efficiency is low, and cost of goods manufactured is high.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, provide a kind of and ensure pipe ring stiffness, 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 is also the production method providing a kind of double-layer coextrusion polyethylene spirally enwound structure-wall tubular product.
Another object of the present invention is also the manufacturing mechanism providing a kind 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, be made up of 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 in pivotal steel core mould on the surface, and the edge of each adjacent double-layers sheet polyethylene tape overlaps the continuous solid wall pipe merging and formed successively mutually; Outer wall layer is by the double-deck arc polyethylene tape double layered tubular polyethylene tape that formed of a coated polypropylene backbone pipe jointly, this double layered tubular polyethylene tape is helically wound around inner wall layer outer surface and forms evagination stiffening rib, and double layered tubular polyethylene tape spiral cross-pressure melts commissure in the overlap joint of each adjacent double-layers sheet polyethylene strip belt edge.
A production method for double-layer coextrusion polyethylene spirally enwound structure-wall tubular product, is characterized in that: this production method comprises the steps:
(1). adopt the flat material strip of the first flat material strip extruder polyethylene extrusion to form body internal layer;
(2). adopt the flat material strip of the second flat material strip extruder polyethylene extrusion to form body clad, above-mentioned internal layer and clad form double-layer tablets shaped polyethylene band jointly through flat rubber belting die head, and be spirally wound on 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;
(3). the first arc material strip extruder polyethylene extrusion material strip forms clad strip in polypropylene backbone pipe;
(4). the second arc material strip extruder polyethylene extrusion material strip forms polypropylene backbone pipe outer cladding band, jointly coated for polypropylene backbone pipe formation is formed double layered tubular polyethylene tape through clad strip die head, this double layered tubular polyethylene tape is wound in inner wall layer outer surface and forms evagination reinforcing rib structure, and spiral cross-pressure melts commissure in the overlap joint of each adjacent sheet shaped polyethylene strip edge, form outer wall layer.
A kind of manufacturing mechanism of double-layer coextrusion polyethylene spirally enwound structure-wall tubular product, comprise the first flat material strip extruder, the first arc material strip extruder and steel core drum die, it is characterized in that: also comprise the second flat material strip extruder, second arc material strip extruder, flat rubber belting die head and clad strip die head, the discharge port front of the first flat material strip extruder and the second flat material strip extruder is jointly accepted and is installed flat rubber belting die head, and the discharge port front of the first arc material strip extruder and the second arc material strip extruder is jointly accepted and installed clad strip die head.
And described flat rubber belting die head side is shaped with the import of body clad and the import of body internal layer, the opposite side of flat material strip die head is shaped with the outlet of body clad and the outlet of body internal layer.
And, the sidewall of described clad strip die head is shaped with clad strip import in the band import of polypropylene backbone pipe outer cladding and polypropylene backbone pipe, the end of clad strip die head is shaped with clad strip outlet in annular polypropylene backbone pipe outer cladding band outlet and polypropylene backbone pipe.
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 material strip extruder and the second flat material strip extruder can use different polyethylene raw material respectively, comprise different colours, meet the need of market, and the material strip that two extruders can extrude different-thickness superposes, form the requirement that different thickness meets product rigidity, once-through, enhances productivity.
2, double-layer coextrusion polyethylene spirally enwound structure-wall tubular product of the present invention, 3rd arc material strip extruder and the 4th arc material strip extruder, different polyethylene raw material can be used respectively to comprise different colours, meet the need of market, two extruders can extrude the material strip superposition of different-thickness simultaneously, form different thickness and meet production requirement, once-through, enhance productivity.
3, the production method of double-layer coextrusion polyethylene spirally enwound structure-wall tubular product of the present invention and manufacturing mechanism, inner wall layer can be formed by one-step moulding double-layer sheet polyethylene tape online, one-step moulding double-layer tubular polyethylene band, there is simple process, workable, efficiency is high, shortens the production time, improves manufacturing efficiency.
4, tubing of the present invention is under guarantee ring stiffness prerequisite, and process time is short, and manufacturing efficiency is high, applied widely; It is reasonable that its processing method has craft science, and the advantage that energy-output ratio is little, its manufacturing mechanism has one-body molded online, and efficiency is high, the advantage of stable working.
Accompanying drawing explanation
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 tubular object extruding equipment of the present invention;
Fig. 3 is the structural representation of the flat rubber belting die head of tubular object extruding equipment of the present invention;
Fig. 4 is the structural representation of the clad strip die head of tubular object extruding equipment of the present invention.
Accompanying drawing explanation
1-body clad, 2-body internal layer, 3-polypropylene backbone pipe outer cladding band, clad strip in 4-polypropylene backbone pipe, 5-inner wall layer, 6-outer wall layer, 7-steel core drum die, the flat material strip extruder of 8-first, the flat material strip extruder of 9-second, 10-first arc material strip extruder, 11-second arc material strip extruder, 12-flat rubber belting die head, 13-clad strip die head, the import of 14-body clad, the import of 15-body internal layer, 16-body clad exports, 17-body internal layer exports, the import of 18-polypropylene backbone pipe outer cladding band, clad strip import in 19-polypropylene backbone pipe, 20-polypropylene backbone pipe outer cladding band exports, clad strip outlet in 21-polypropylene backbone pipe.
Embodiment
Below by specific embodiment, the invention will be further described, 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, be made up of 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 in pivotal steel core mould on the surface, and the edge of each adjacent double-layers sheet polyethylene tape overlaps the continuous solid wall pipe merging and formed successively mutually; Outer wall layer is by the double-deck arc polyethylene tape double layered tubular polyethylene tape that formed of a coated polypropylene backbone pipe jointly, this double layered tubular polyethylene tape is helically wound around inner wall layer outer surface and forms evagination stiffening rib, and double layered tubular polyethylene tape spiral cross-pressure melts commissure in the overlap joint of each adjacent double-layers sheet polyethylene strip belt edge.
A production method for double-layer coextrusion polyethylene spirally enwound structure-wall tubular product, this production method comprises the steps:
(1). adopt the flat material strip of the first flat material strip extruder 8 polyethylene extrusion to form body internal layer 2;
(2). adopt the flat material strip of the second flat material strip extruder 9 polyethylene extrusion to form body clad 1, above-mentioned internal layer and clad form double-layer tablets shaped polyethylene band jointly through flat rubber belting die head 12, and be spirally wound on 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.
(3). the first arc material strip extruder 10 polyethylene extrusion material strip forms clad strip 4 in polypropylene backbone pipe,
(4). the second arc material strip extruder 11 polyethylene extrusion material strip forms polypropylene backbone pipe outer cladding band 3, jointly coated for polypropylene backbone pipe formation is formed double layered tubular polyethylene tape through clad strip die head 13.
This double layered tubular polyethylene tape is wound in inner wall layer outer surface and forms evagination reinforcing rib structure, and 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 material strip extruder, the first arc material strip extruder and steel core drum die, it also comprises the second flat material strip extruder, second arc material strip extruder, flat rubber belting die head and clad strip die head, the discharge port front of the first flat material strip extruder and the second flat material strip extruder is jointly accepted and is installed flat rubber belting die head, and the discharge port front of the first arc material strip extruder and the second arc material strip extruder is jointly accepted and installed clad strip 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 material strip die head is shaped with body clad outlet 16 and body internal layer outlet 17.The sidewall of clad strip die head is shaped with clad strip import 19 in polypropylene backbone pipe outer cladding band import 18 and polypropylene backbone pipe, the end of clad strip die head is shaped with clad strip outlet 21 in annular polypropylene backbone pipe outer cladding band outlet 20 and polypropylene backbone pipe.
Although disclose embodiments of the invention and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that: in the spirit and scope not departing from the present invention and claims, various replacement, change and amendment are all possible, therefore, scope of the present invention is not limited to the content disclosed in embodiment and accompanying drawing.
Claims (4)
1. a production method for double-layer coextrusion polyethylene spirally enwound structure-wall tubular product, is characterized in that: this production method comprises the steps:
(1). adopt the flat material strip of the first flat material strip extruder polyethylene extrusion to form body internal layer;
(2). adopt the flat material strip of the second flat material strip extruder polyethylene extrusion to form body clad, above-mentioned internal layer and clad form double-layer tablets shaped polyethylene band jointly through flat rubber belting die head, and be spirally wound on 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;
(3). the first arc material strip extruder polyethylene extrusion material strip forms clad strip in polypropylene backbone pipe;
(4). the second arc material strip extruder polyethylene extrusion material strip forms polypropylene backbone pipe outer cladding band, through clad strip die head jointly by coated for polypropylene backbone pipe formation double layered tubular polyethylene tape, this double layered tubular polyethylene tape is wound in inner wall layer outer surface and forms evagination reinforcing rib structure, and spiral cross-pressure melts commissure in the overlap joint of each adjacent double-layers sheet polyethylene strip belt edge, form outer wall layer.
2. the manufacturing mechanism of a double-layer coextrusion polyethylene spirally enwound structure-wall tubular product, comprise the first flat material strip extruder, the first arc material strip extruder and steel core drum die, it is characterized in that: also comprise the second flat material strip extruder, second arc material strip extruder, flat rubber belting die head and clad strip die head, the discharge port front of the first flat material strip extruder and the second flat material strip extruder is jointly accepted and is installed flat rubber belting die head, and the discharge port front of the first arc material strip extruder and the second arc material strip extruder is jointly accepted and installed clad strip die head.
3. the manufacturing mechanism of double-layer coextrusion polyethylene spirally enwound structure-wall tubular product according to claim 2, it is characterized in that: described flat rubber belting die head side is shaped with the import of body clad and the import of body internal layer, the opposite side of flat rubber belting die head is shaped with the outlet of body clad and the outlet of body internal layer.
4. the manufacturing mechanism of double-layer coextrusion polyethylene spirally enwound structure-wall tubular product according to claim 2, it is characterized in that: the sidewall of described clad strip die head is shaped with clad strip import in the band import of polypropylene backbone pipe outer cladding and polypropylene backbone pipe, the end of clad strip die head is shaped with clad strip outlet in annular polypropylene backbone pipe outer cladding band outlet and polypropylene backbone pipe.
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| CN103322340B true CN103322340B (en) | 2015-12-09 |
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| 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 |
| 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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| 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 |
| CN202719284U (en) * | 2012-06-01 | 2013-02-06 | 刘睿 | High-rigidity polyethylene winding structure wall pipe |
| 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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| FI125098B (en) * | 2007-05-23 | 2015-05-29 | Uponor Innovation Ab | A piping element and a method and apparatus for making it |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN202719284U (en) * | 2012-06-01 | 2013-02-06 | 刘睿 | High-rigidity polyethylene winding structure wall pipe |
| 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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