CN105835386B - The method for rolling thin-wall metal bushing continuous production insulating tube synchronous with polyurethane spray foam - Google Patents
The method for rolling thin-wall metal bushing continuous production insulating tube synchronous with polyurethane spray foam Download PDFInfo
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- CN105835386B CN105835386B CN201610404204.0A CN201610404204A CN105835386B CN 105835386 B CN105835386 B CN 105835386B CN 201610404204 A CN201610404204 A CN 201610404204A CN 105835386 B CN105835386 B CN 105835386B
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- thin
- wall metal
- metal bushing
- core pipe
- pipe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
Abstract
The invention discloses a kind of methods for rolling thin-wall metal bushing continuous production insulating tube synchronous with polyurethane spray foam, its main feature is that rolling thin-wall metal bushing tinuous production synchronous with polyurethane spray foam using integrating, when core pipe being made to be overlapped with the thin-wall metal bushing rolled with axis and axially promote at the same speed, urethane raw is sprayed in interlayer between core pipe and thin-wall metal bushing, core pipe and thin-wall metal bushing consolidation are integrated by the rigid foam insulating layer formed that foams, and the polyurethane foam heat-insulation pipe of thin-wall metal bushing is made.The present invention has compared with prior art rolls thin-wall metal bushing and spray foam in one, entire manufacturing process is controlled by programmable controller, realize one-pass molding full-automation continuous production utilidor, substantially increase product quality and production efficiency, smooth surface, beauty are especially suitable for building inside and underground pipe gallery.
Description
Technical field
Thin-wall metal bushing is rolled the present invention relates to steam insulation pipe manufacturing technology field, especially one kind and sprays poly- ammonia
The method of the synchronous continuous production insulating tube of ester foam.
Background technique
Currently, utilidor is widely used in district heating, cooling supply, for industrial steam, wherein hard polyurethane foams conduct
Thermal insulation material is most popular because its sexual valence is relatively high.The insulating tube of polyurethane foam is mainly used for underground laying, keeps the temperature core pipe
Mainly steel pipe, lagging casing high density polyethylene (HDPE), glass reinforced plastic or steel production are the widest with high density polyethylene (HDPE) housing application
It is general.Generally using perfusion and spraying process production, instillation process is to wear core pipe for the processing of existing polyurethane hot water or cold water insulating tube
Into casing, then the filling polyurethane raw material into the interlayer space of core pipe and casing, foaming form polyurethane foam heat-insulation pipe.
Spraying process is that polyurethane spray foam winds the highly dense of hot mastication after foam hardening in foam in core pipe
Polyethylene is spent, forms insulating tube after outer shell hardening by cooling.For direct buried laying utilidor, above-mentioned material and processing
Technique is all mature.But in other occasions, as inside building, in piping lane and aerial laying, above-specified high density polyethylene,
Glass reinforced plastic and the heat preservation pipe shell of thick steel sheet production are all inadaptable.For the new demand in market, thin-wall metal developed
Plate, machined helix seaming outer tube, product appearance is exquisite smooth bright and clean, is received by the market very much, and heat preservation pipe processing technique is still
Using filling polyurethane raw material, foaming mode.Since the foaming of method for filling fully belongs to manual operation, production efficiency is low
Under, the resistance combustion polyurethane foam cost of material that foaming is especially perfused is higher by by about one time than the flame-proof material that spraying method foams, system
Make at high cost and hinders polyurethane foam heat-insulation pipe and enter building, piping lane and aerial laying pipe network market.
The insulating tube of the prior art is used for direct-burried underground, and shell uses heavy wall high density polyethylene pipe, glass reinforced plastic or thickness
Wall steel pipe is not suitable for aerial laying, is not particularly suitable for for building inside and underground pipe gallery.Thin metal plate spiral seam
Rolling casing and introducing insulating tube and produce is resolved the above problem, and the thin-wall metal bushing smooth surface of machining is bright and clean
Lines are regular, are received by the market very much.Polyurethane foam is widely used in insulating tube as the quite high thermal insulation material of cost performance, is gathered
There are two types of production methods for urethane foam, and one is perfusion foamings, and another kind is spray coating foaming method.Spray coating foaming method is by poly- ammonia
Ester foam raw material is sprayed onto the core pipe of insulating tube, is hardened to foam and then is wound the high density polyethylene (HDPE) of semi-molten state
To foam surface, this first spray twines technique afterwards and can not be applied to the insulating tube production that thin-wall metal bushing does shell, therefore
Thin-wall metal bushing polyurethane foam heat-insulation pipe still continues to use perfusion foaming method production, first rolls casing with metal sheet, it
Casing is set in core pipe afterwards, then foaming raw material is perfused into core, chuck layer.This mode inefficiency completely hand-manipulated,
It is non-direct buried insulating tube there are one problem, the polyurethane foam of use needs flame retardant property, at present perfusion foaming
Technique is incompatible with flame-retardancy requirements.
Summary of the invention
The purpose of the present invention is in view of the deficiencies of the prior art and one kind for designing rolls thin-wall metal bushing and spraying is poly-
The method of the synchronous continuous production insulating tube of urethane foam, using integrating, to roll thin-wall metal bushing synchronous with spray foam
Tinuous production, entire manufacturing process are controlled by programmable controller, realize one-pass molding full-automation continuous production insulating tube
Road, labor intensity is low, good product quality, high production efficiency, can further decrease cost of manufacture, cost performance is high, smooth surface, beauty
It sees, is especially suitable for building inside and underground pipe gallery.
The object of the present invention is achieved like this: it is synchronous with polyurethane spray foam continuous that one kind rolling thin-wall metal bushing
The method for producing insulating tube by insulating layer, thin-wall metal bushing of polyurethane foam is the insulating tube of housing including core pipe, special
Point is to use to integrate to roll thin-wall metal bushing tinuous production synchronous with polyurethane spray foam, makes core pipe and rolls
Thin-wall metal bushing with axis coincidence and it is synchronized axial promote when, spray in the interlayer between core pipe and thin-wall metal bushing
Core pipe and thin-wall metal bushing consolidation are integrated by the rigid foam insulating layer of urethane raw, formation of foaming, and thin-walled gold is made
Belong to the polyurethane foam heat-insulation pipe of casing.
The synchronous tinuous production is by core pipe conveying device, polyurethane spray coating device, core pipe guide and locating mechanism, casing
Sizing positioning mechanism, programmable controller, rolling machine and pipe cutting machine composition, the core pipe conveying device and core pipe guide-localization machine
Structure and casing sizing positioning mechanism are that coaxial line is set gradually in the production line；The core pipe guide and locating mechanism is arranged in core pipe
Conveying device goes out pipe end；The thin-wall metal bushing of rolling machine rolling machine spiral seam is arranged in described sleeve pipe sizing positioning mechanism
On；The programmable controller is connect with core pipe conveying device, polyurethane spray coating device, rolling machine and pipe cutting machine respectively, can be compiled
The conveying of range controller whole-process control core pipe, thin-wall metal bushing roll progress synchronous with the injection of interlayer polyurethane foam and heat preservation
Pipe cuts offline continuous production.
The present invention has compared with prior art rolls thin-wall metal bushing and spray foam in one, entire manufacturing process
It is controlled by programmable controller, realizes one-pass molding full-automation continuous production utilidor, labor intensity is low, can further drop
Low cost of manufacture, product quality and production efficiency greatly improve, smooth surface, beauty, are especially suitable for building inside and ground
Lower piping lane.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Specific embodiment
Embodiment 1
Refering to attached drawing 1, the present invention is by core pipe conveying device 1, polyurethane spray coating device 2, programmable controller 7, rolling machine
8, pipe cutting machine 9 and core pipe guide and locating mechanism 3 and casing sizing positioning mechanism 6 form.The core pipe conveying device 1 and core pipe
Guide and locating mechanism 3 and casing sizing positioning mechanism 6 are that coaxial line is set gradually in the production line；The core pipe guide-localization machine
The pipe end out of core pipe conveying device 1 is arranged in structure 3；The thin of 8 spiral seam of rolling machine is arranged in described sleeve pipe sizing positioning mechanism 6
On wall metal sleeve；The programmable controller 7 respectively with core pipe conveying device 1, polyurethane spray coating device 2, rolling machine 8 and
Pipe cutting machine 9 connects, and the conveying of 7 whole-process control core pipe of programmable controller, thin-wall metal bushing are rolled to be sprayed with interlayer polyurethane foam
It penetrates synchronous progress and insulating tube cuts offline continuous production.
The present invention operates in such a way: core pipe 4 is placed in core pipe conveying device 1, the sheet metal that rolling machine 8 will be fed into
Curling flanging, heals up, seaming, rolls, and forms cylindrical metallic casing, and casing sizing positioning device 6 guarantees rolled thin-walled gold
The diameter dimension for belonging to casing 5 determines constant, and it is constant to guarantee that the position of center line of thin-wall metal bushing 5 determines simultaneously.It is rolling
While thin-wall metal bushing 5, core pipe 4 is sent into thin-wall metal bushing 5 by core pipe conveying device 1, core pipe guide locating device provided 3
It can ensure that be sent into core pipe 4 and thin-wall metal bushing 5 are concentric, polyurethane foam is sprayed onto thin-walled gold by polyurethane spray coating device 2
In the annular gap space for belonging to casing 5 and core pipe 4, manufactured insulating tube 10 is cut off from tubulation platform by pipe cutting machine 9, is become into
Product insulating tube is offline.Roll propulsion conveying and polyurethane spray foam and the finished product thermal insulation pipe of thin-wall metal bushing 5 and core pipe 4
Cutting it is synchronous carry out, this process is instructed according to programmable controller 7 and is completed.While rolling thin-wall metal bushing 5, core pipe
4 are admitted in the thin-wall metal bushing 5 of roll-forming, and programmable controller 7 guarantees the production fltting speed of thin-wall metal bushing 5
Consistent with 4 feed rate of core pipe, the injection into thin-wall metal bushing 5 and 4 interlayer of core pipe of polyurethane spray coating device 2 at the same time is poly-
Urethane foam, after insulating tube to be produced reaches the length of setting, pipe cutting machine 9 is by insulating tube transversely cutting, manufactured insulating tube
Offline to enter storage of finished products area, next insulating tube production continues not stop to carry out, and overall process is controlled by programmable controller 7.
Above only the present invention is further illustrated, and not to limit this patent, all is equivalence enforcement of the present invention,
It is intended to be limited solely by within the scope of the claims of this patent.
Claims (1)
1. a kind of method for rolling thin-wall metal bushing continuous production insulating tube synchronous with polyurethane spray foam, including core pipe with
The insulating tube that polyurethane foam is insulating layer, thin-wall metal bushing is housing, it is characterised in that thin-wall metal set is rolled using collection
It manages with polyurethane spray foam in the synchronous tinuous production of one, is overlapped core pipe with axis with the thin-wall metal bushing rolled
And it is synchronized axial spray urethane raw in the interlayer between core pipe and thin-wall metal bushing when promoting, formation of foaming it is hard
Core pipe and thin-wall metal bushing consolidation are integrated by matter foam heat-insulation layer, and the polyurethane foam insulation of thin-wall metal bushing is made
Pipe, the synchronous tinuous production are formed by core pipe conveying device, polyurethane spray coating device, core pipe guide and locating mechanism, casing
Positioning mechanism, programmable controller, rolling machine and pipe cutting machine composition, the core pipe conveying device and core pipe guide and locating mechanism and
Casing sizing positioning mechanism is that coaxial line is set gradually in the production line；The core pipe guide and locating mechanism setting is conveyed in core pipe
Device goes out pipe end；Described sleeve pipe sizing positioning mechanism is arranged on the thin-wall metal bushing of rolling machine spiral seam；It is described can
Programmable controller is connect with core pipe conveying device, polyurethane spray coating device, rolling machine and pipe cutting machine respectively, and programmable controller is complete
The conveying of process control core pipe, thin-wall metal bushing roll progress synchronous with the injection of interlayer polyurethane foam and insulating tube cutting is offline
Continuous production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610404204.0A CN105835386B (en) | 2016-06-12 | 2016-06-12 | The method for rolling thin-wall metal bushing continuous production insulating tube synchronous with polyurethane spray foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610404204.0A CN105835386B (en) | 2016-06-12 | 2016-06-12 | The method for rolling thin-wall metal bushing continuous production insulating tube synchronous with polyurethane spray foam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105835386A CN105835386A (en) | 2016-08-10 |
| CN105835386B true CN105835386B (en) | 2018-12-14 |
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| CN201610404204.0A Active CN105835386B (en) | 2016-06-12 | 2016-06-12 | The method for rolling thin-wall metal bushing continuous production insulating tube synchronous with polyurethane spray foam |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111438016A (en) * | 2020-04-17 | 2020-07-24 | 江苏枂硕电子科技有限公司 | Novel pipeline machining automation equipment and use method |
| CN113580622B (en) * | 2021-07-20 | 2023-03-14 | 京华派克邯郸机械科技有限公司 | Continuous production process of composite heat-insulating pipe |
| CN114347523A (en) * | 2021-12-22 | 2022-04-15 | 荥阳市坛山热力保温管道有限公司 | Insulating tube production line |
| CN114889178B (en) * | 2022-05-24 | 2023-09-08 | 江苏奥瑞斯智能装备有限公司 | Environment-friendly low-loss spraying winding insulating pipe production line |
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|---|---|---|---|---|
| US4438056A (en) * | 1980-07-07 | 1984-03-20 | Bethlehem Steel Corporation | Method for producing a corrugated pipe having a smooth lining of foam plastic |
| CN103072268A (en) * | 2011-10-25 | 2013-05-01 | 天华化工机械及自动化研究设计院 | Spraying and winding molding method for anti-corrosion thermal insulation blanket of steel pipeline |
| CN104149355A (en) * | 2014-08-18 | 2014-11-19 | 唐山兴邦管道工程设备有限公司 | One-step forming process of insulating pipe |
| CN105135080A (en) * | 2015-08-06 | 2015-12-09 | 唐山兴邦管道工程设备有限公司 | Prefabricated overhead insulating pipe and outer sheath rolling molding device thereof |
| CN105383066A (en) * | 2015-12-08 | 2016-03-09 | 朗格斯特哈尔滨环保节能产品制造有限公司 | Continuous production device and method for straight pipe polyurethane thermal insulation pipes |
-
2016
- 2016-06-12 CN CN201610404204.0A patent/CN105835386B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4438056A (en) * | 1980-07-07 | 1984-03-20 | Bethlehem Steel Corporation | Method for producing a corrugated pipe having a smooth lining of foam plastic |
| CN103072268A (en) * | 2011-10-25 | 2013-05-01 | 天华化工机械及自动化研究设计院 | Spraying and winding molding method for anti-corrosion thermal insulation blanket of steel pipeline |
| CN104149355A (en) * | 2014-08-18 | 2014-11-19 | 唐山兴邦管道工程设备有限公司 | One-step forming process of insulating pipe |
| CN105135080A (en) * | 2015-08-06 | 2015-12-09 | 唐山兴邦管道工程设备有限公司 | Prefabricated overhead insulating pipe and outer sheath rolling molding device thereof |
| CN105383066A (en) * | 2015-12-08 | 2016-03-09 | 朗格斯特哈尔滨环保节能产品制造有限公司 | Continuous production device and method for straight pipe polyurethane thermal insulation pipes |
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| CN105835386A (en) | 2016-08-10 |
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