CN105835386A - Method for synchronously and continuously producing thermal insulation pipes by rolling thin-walled metal sleeves and spraying polyurethane foam - Google Patents
Method for synchronously and continuously producing thermal insulation pipes by rolling thin-walled metal sleeves and spraying polyurethane foam Download PDFInfo
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- CN105835386A CN105835386A CN201610404204.0A CN201610404204A CN105835386A CN 105835386 A CN105835386 A CN 105835386A CN 201610404204 A CN201610404204 A CN 201610404204A CN 105835386 A CN105835386 A CN 105835386A
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- thin
- core pipe
- pipe
- wall metal
- metal bushing
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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 method for synchronously and continuously producing thermal insulation pipes by rolling thin-walled metal sleeves and spraying polyurethane foam. The method is characterized in that a synchronous and continuous production line which integrates rolling of the thin-walled metal sleeves and spraying of the polyurethane foam, the axis of a core pipe and the axis of a rolled thin-walled metal sleeve are superposed, when the core pipe and the rolled thin-walled metal sleeve are propelled axially at the same speed, polyurethane raw materials are sprayed from a sandwich layer between the core pipe and the thin-walled metal sleeve, the core pipe and the thin-walled metal sleeve are fixed integrally by a hard foam thermal insulation layer formed by foaming, and a polyurethane foam thermal insulation pipe of the thin-walled metal sleeve is manufactured. Compared with the prior art, the method has the characteristics that rolling of the thin-walled metal sleeves and spraying of the foams are integrated, a whole manufacturing process is controlled by a programmable controller, the thermal insulation pipes are formed at a time and are full-automatically and continuously produced, quality and production efficiency of products are greatly improved, surfaces are smooth and attractive, and the method is particularly suitable for interiors and underground pipe galleries of buildings.
Description
Technical field
The present invention relates to steam insulation pipe and manufacture technical field, a kind of method rolling thin-wall metal bushing continuously production Tong Bu with polyurethane spray foam insulating tube.
Background technology
At present, utilidor is widely used in district heating, cooling, supplies industrial steam, and wherein hard polyurethane foams is higher because of its cost performance as insulation material, most popular.The insulating tube of polyurethane foam is mainly used in underground laying, and insulation core pipe is mainly steel pipe, and lagging casing high density polyethylene (HDPE), fiberglass or steel are made, be most widely used with high density polyethylene (HDPE) overcoat.The processing of existing polyurethane hot water or cold water's insulating tube typically uses perfusion and spraying coating process to make, and instillation process is through in sleeve pipe by core pipe, then filling polyurethane raw material in the core pipe mezzanine space with sleeve pipe, and foaming forms polyurethane foam heat-insulation pipe.Spraying coating process is that polyurethane spray foam, after foam hardens, is wound around the high density polyethylene (HDPE) of hot mastication in foam on core pipe, forms insulating tube after outer casing hardening by cooling.For the direct buried utilidor that lays, above-mentioned material and processing technique are all ripe.But in other occasions, as inside building, in piping lane and built on stilts lay, the insulating tube shell that above-specified high density polyethylene, fiberglass and thick steel sheet make is the most inadaptable.For the demand that market is new, developed thin metal plate, machined helix seaming trocar sheath, product appearance is exquisite smooth bright and clean, is received by the market very much, and insulating tube processing technique still uses filling polyurethane raw material, foaming mode.Owing to the foaming of method for filling fully belongs to manual operation, production efficiency is low, the resistance combustion polyurethane foam cost of material especially irrigating foaming exceeds by about one time than the flame-proof material that spraying method foams, and cost of manufacture is high and hinders polyurethane foam heat-insulation pipe and enters building, piping lane and built on stilts lay pipe network market.
The insulating tube of prior art is used for direct-burried underground, and its shell uses heavy wall high density polyethylene pipe, fiberglass or thick walled steel tube, is not suitable for built on stilts laying, and is not particularly suitable for and underground pipe gallery internal for building.Thin metal plate spiral seam rolls sleeve pipe introducing insulating tube production makes the problems referred to above be resolved, and the thin-wall metal bushing surface smooth finish lines of machining are regular, are received by the market very much.Polyurethane foam is widely used in insulating tube as the insulation material that cost performance is at a relatively high, and polyurethane foam has two kinds of manufacture methods, and one is perfusion foaming, and another kind is spray coating foaming method.Spray coating foaming method is to be sprayed onto on the core pipe of insulating tube by polyurethane foam raw material, after treating foam hardening, again the high density polyethylene (HDPE) of semi-molten state is wound into foam surface, this first spray twine afterwards technique cannot be applied to thin-wall metal bushing do shell insulating tube produce, therefore thin-wall metal bushing polyurethane foam heat-insulation pipe still continues to use perfusion foaming method production, first roll sleeve pipe with metal sheet, afterwards sleeve pipe is set on core pipe, then in core, chuck layer, irrigate foaming raw material.This mode manual operations inefficiency completely, also a problem is non-direct buried insulating tube, and the polyurethane foam of employing needs fire resistance, and perfusion foam process is incompatible with flame-retardancy requirements at present.
Summary of the invention
It is an object of the invention to a kind of method rolling thin-wall metal bushing continuously production Tong Bu with polyurethane spray foam insulating tube designed for the deficiencies in the prior art, use and integrate the synchronization tinuous production rolling thin-wall metal bushing and spray foam, whole manufacturing process is by Controlled by Programmable Controller, realize one-shot forming full-automation and produce utilidor continuously, labor intensity is low, good product quality, production efficiency is high, cost of manufacture can be reduced further, cost performance is high, surface is smooth, attractive in appearance, is especially suitable for building inside and underground pipe gallery.
The object of the present invention is achieved like this: a kind of method rolling thin-wall metal bushing continuously production Tong Bu with polyurethane spray foam insulating tube, including core pipe with polyurethane foam as heat-insulation layer, thin-wall metal bushing is the insulating tube of overcoat, it is characterized in using and integrates the synchronization tinuous production rolling thin-wall metal bushing and polyurethane spray foam, when the thin-wall metal bushing making core pipe and roll is with dead in line and synchronized axial propelling, interlayer between core pipe and thin-wall metal bushing sprays urethane raw, core pipe is integrated by the rigid foam heat-insulation layer that foaming is formed with thin-wall metal bushing consolidation, make the polyurethane foam heat-insulation pipe of thin-wall metal bushing.
Described synchronization tinuous production is made up of core pipe conveyer device, polyurethane spray coating device, Xin Guan guide-localization mechanism, sleeve pipe sizing detent mechanism, Programmable Logic Controller, rolling machine and pipe cutting machine, and described core pipe conveyer device is that coaxial line sets gradually on a production line with Xin Guan guide-localization mechanism and sleeve pipe sizing detent mechanism；What described Xin Guan guide-localization mechanism was arranged on core pipe conveyer device goes out pipe end；Described sleeve pipe sizing detent mechanism is arranged on the thin-wall metal bushing of rolling machine rolling machine spiral seam；Described Programmable Logic Controller is connected with core pipe conveyer device, polyurethane spray coating device, rolling machine and pipe cutting machine respectively, and the conveying of Programmable Logic Controller whole-process control core pipe, thin-wall metal bushing roll sprays the continuous production synchronizing to carry out and insulating tube cutting is rolled off the production line with interlayer polyurethane foam.
The present invention compared with prior art have roll thin-wall metal bushing and spray foam in one, whole manufacturing process is by Controlled by Programmable Controller, realize one-shot forming full-automation and produce utilidor continuously, labor intensity is low, cost of manufacture can be reduced further, product quality and production efficiency are greatly improved, and surface is smooth, attractive in appearance, are especially suitable for building inside and underground pipe gallery.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram.
Detailed description of the invention
Embodiment 1
Refering to accompanying drawing 1, the present invention is made up of core pipe conveyer device 1, polyurethane spray coating device 2, Programmable Logic Controller 7, rolling machine 8, pipe cutting machine 9 and Xin Guan guide-localization mechanism 3 and sleeve pipe sizing detent mechanism 6.Described core pipe conveyer device 1 and Xin Guan guide-localization mechanism 3 and sleeve pipe sizing detent mechanism 6 set gradually on a production line for coaxial line；What described Xin Guan guide-localization mechanism 3 was arranged on core pipe conveyer device 1 goes out pipe end；Described sleeve pipe sizing detent mechanism 6 is arranged on the thin-wall metal bushing of rolling machine 8 spiral seam；Described Programmable Logic Controller 7 is connected with core pipe conveyer device 1, polyurethane spray coating device 2, rolling machine 8 and pipe cutting machine 9 respectively, and the conveying of Programmable Logic Controller 7 whole-process control core pipe, thin-wall metal bushing roll sprays the continuous production synchronizing to carry out and insulating tube cutting is rolled off the production line with interlayer polyurethane foam.
The present invention is so work: be placed in by core pipe 4 on core pipe conveyer device 1, sheet metal curling, flanging that rolling machine 8 will be fed into, heal up, seaming, roll, form cylindrical metallic sleeve pipe, sleeve pipe sizing positioner 6 ensures that the diameter dimension of the thin-wall metal bushing 5 rolled determines constant, and ensures that the position of center line of thin-wall metal bushing 5 determines constant simultaneously.While rolling thin-wall metal bushing 5, core pipe 4 quilt core pipe conveyer device 1 is sent in thin-wall metal bushing 5, core pipe guide locating device provided 3 can ensure that sent into core pipe 4 is concentric with thin-wall metal bushing 5, polyurethane foam is sprayed onto in the annular gap space of thin-wall metal bushing 5 and core pipe 4 by polyurethane spray coating device 2, the insulating tube 10 made is cut off from tubulation platform by pipe cutting machine 9, becomes finished product thermal insulation pipe and rolls off the production line.The cutting advancing conveying and polyurethane spray foam and finished product thermal insulation pipe rolling thin-wall metal bushing 5 and core pipe 4 is Tong Bu carried out, and this process has instructed according to Programmable Logic Controller 7.While rolling thin-wall metal bushing 5, core pipe 4 is admitted in the thin-wall metal bushing 5 of roll-forming, Programmable Logic Controller 7 ensures that the production fltting speed of thin-wall metal bushing 5 is consistent with core pipe 4 feed rate, meanwhile polyurethane spray coating device 2 sprays polyurethane foam in thin-wall metal bushing 5 with core pipe 4 interlayer, after insulating tube to be produced reaches the length set, pipe cutting machine 9 is by insulating tube transversely cutting, the insulating tube made rolls off the production line and enters storage of finished products district, next root insulating tube produces and continues not stop to carry out, and overall process is controlled by Programmable Logic Controller 7.
More than simply the present invention is further illustrated, and is not used to limit this patent, all implements for equivalence of the present invention, within being intended to be limited solely by the right of this patent.
Claims (2)
1. one kind rolls the thin-wall metal bushing method that continuously produce insulating tube Tong Bu with polyurethane spray foam, including core pipe with polyurethane foam as heat-insulation layer, thin-wall metal bushing is the insulating tube of overcoat, it is characterized in that using and integrate the synchronization tinuous production rolling thin-wall metal bushing and polyurethane spray foam, when the thin-wall metal bushing making core pipe and roll is with dead in line and synchronized axial propelling, interlayer between core pipe and thin-wall metal bushing sprays urethane raw, core pipe is integrated by the rigid foam heat-insulation layer that foaming is formed with thin-wall metal bushing consolidation, make the polyurethane foam heat-insulation pipe of thin-wall metal bushing.
Roll the thin-wall metal bushing method that continuously produce insulating tube Tong Bu with polyurethane spray foam the most according to claim 1, it is characterized in that described synchronization tinuous production is made up of core pipe conveyer device, polyurethane spray coating device, Xin Guan guide-localization mechanism, sleeve pipe sizing detent mechanism, Programmable Logic Controller, rolling machine and pipe cutting machine, described core pipe conveyer device is that coaxial line sets gradually on a production line with Xin Guan guide-localization mechanism and sleeve pipe sizing detent mechanism；What described Xin Guan guide-localization mechanism was arranged on core pipe conveyer device goes out pipe end；Described sleeve pipe sizing detent mechanism is arranged on the thin-wall metal bushing of rolling machine spiral seam；Described Programmable Logic Controller is connected with core pipe conveyer device, polyurethane spray coating device, rolling machine and pipe cutting machine respectively, and the conveying of Programmable Logic Controller whole-process control core pipe, thin-wall metal bushing roll sprays the continuous production synchronizing to carry out and insulating tube cutting is rolled off the production line with interlayer polyurethane foam.
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 |
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| Application Number | Priority Date | Filing Date | Title |
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| 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 |
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| CN105835386A true CN105835386A (en) | 2016-08-10 |
| CN105835386B CN105835386B (en) | 2018-12-14 |
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Cited By (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 |
| CN113580622A (en) * | 2021-07-20 | 2021-11-02 | 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 |
| CN114889178A (en) * | 2022-05-24 | 2022-08-12 | 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 |
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| 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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2016
- 2016-06-12 CN CN201610404204.0A patent/CN105835386B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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Cited By (6)
| 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 |
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| 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 |
| CN114889178A (en) * | 2022-05-24 | 2022-08-12 | 江苏奥瑞斯智能装备有限公司 | Environment-friendly low-loss spraying winding insulating pipe 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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| CN105835386B (en) | 2018-12-14 |
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