CN2616362Y - Continuous production apparatus for steel-plastic composite pipe coated with adhesive on surface of holed steel skeleton - Google Patents

Abstract

The utility model provides a continuous production apparatus of steel-plastic compound pipe with apertured steel skeletons and daubed agglomerant, which comprises a forming and sizing welding mechanism, a extrusion compounding mechanism and a sizing and cooling forming mechanism. The continuous production apparatus is characterized in that one end of a hollow core mold crosses a forming mold cavity via hanging in the air inside the extrusion compounding mechanism, an agglomerant daubing mechanism which sticks simultaneously agglomerant on the inner and outer surfaces of the steel skeletons via the holes of the tubular steel skeletons is provided at the front of the ejection compounding mechanism, a dusting gun and / or inpower device is provided on a power recovery shield box and / or fluidized bed inside the agglomerant daubing mechanism, wherein one end of the dusting gun and / or inpower device extends into the fluidized bed, and a heater used for heating the steel skeletons and / or steel skeletons of sticking power is provided at the front and / or back of the agglomerant daubing mechanisms, and a inner-cooling sizing jacket used for cooling the inner surfaces of the compound pipes is equipped inside the ejection compound mechanism and communicated with the hollow core mold, wherein the cooling medium is communicated with outside through the hollow core mold. The compound pipe produced with the apparatus has high bearing capacity, strong preserving ability, high heat endurance, low cost, and extensive application area.

Description

The continuous process units of steel-plastics composite pipe that hole steel skeleton external coating binding agent is arranged

Technical field:

The utility model relates to a kind of metallic framework with hole and makes to strengthen body, extrude the process units that the compound polymeric material forms the plastic composite pipe that metallic framework strengthens at the skeleton surfaces externally and internally, particularly be the continuous process units of the plastic composite pipe of application adhesive layer in advance before composite materials is extruded on a kind of surface at pertusate metallic framework.

Background technology:

Existing with pertusate metallic framework do enhancing body, on this skeleton, extrude composite polymeric materials and many reports and open are arranged as method and apparatus and the corresponding patent that non-individual body becomes the skeleton coating production technology of steel-plastics composite pipe, as BP GB2255,148A92.10.28, Chinese patent application numbers 94104509.9, application number 98119383.8, application number 99232026.7 application number 99232162.X and 99232214.6 application numbers, 99114790.1 application numbers 00222720.7 and 00132035.1 application number, 99112221.6 application numbers 01113962.5.

These disclosed technical schemes are that steel plate with hole with holes is through being curled into cartridge type longitudinally and being welded as the cartridge type metallic framework, or helical coil coiled cartridge type and be welded as the cartridge type metallic framework, or spiral twines the broadwise reinforcing bar on the warp-wise reinforcing bar that vertically distributes, through being welded as the cartridge type metallic framework, or vertical distribution warp-wise reinforcing bar is through being welded as the cartridge type metallic framework on the broadwise reinforcing bar periphery that spiral twines, metallic framework is pushed or draws in the compound die head of the polymer that molten plastic runner and forming cavity are arranged or forming cavity mould that is connected with plastic extruder, and the hole that the polymer non-individual body of fusion passes metallic framework coats at the surfaces externally and internally formation ectonexine of metallic framework and with skeleton.Pass through cooling and shaping, just produced the composite metal plastic pipe that metallic framework strengthens the tube wall that is coated with metallic framework.This pipeline promptly has the higher bearing capacity of metallic conduit, because of inside and outside wall with plastics and the hole by metallic framework inside and outside wall is connected as a single entity again, advantages of good anticorrosion performance and pipeline switching performance are arranged, with metallic conduit and pure plastic pipe channel ratio, comprehensive performance is arranged, obtaining on chemical industry, oil transportation, delivery of fuel gas, discharge pressure and Korrosionsmedium widely and use, is a kind of structural preferably compound pipeline complex pipeline.But, the personnel that possess this field professional technique know, the surface of metallic framework such as steel and aluminium is a polar surfaces, and stronger polymer such as the polyethylene of antiseptic power, the interface of polyolefine materials such as polypropylene is an apolar surfaces, at polymer fusion clad metal skeleton, behind cooling and shaping, the interface of metallic framework and polymer non-individual body in fact only is a kind of coating, the interface do not have real affinity promptly bonding form one, should not become real composite construction composite in other words, therefore also influenced the wider application of this pipeline, even there is corrosive medium to go into metallic framework by the metallic framework of the pipe end of cut-out and the contacting permeation of polymer, the corroding metal skeleton, and then wear out the plastic outer layer on the metallic framework and danger that pipeline was lost efficacy.In order to address this problem, people have to adopt with maleic anhydride or acrylic ester grafted polymer and make the polymer non-individual body of clad metal skeleton, or adopt and can make the polymer connector with other polymeric material of metal surface affinity.But or costing an arm and a leg of this binary or ternary polymerization with the material of metal material surface affinity or bonding, or do not reach the serviceability of polypropylene or this material of polyethylene, general engineering can not be taked these schemes with pipe.People have adopted comparatively economic scheme again for this reason, the ethene of the weight ratio with 15 to 30% and maleic anhydride or acrylic ester grafted polymer and polyethylene or the polypropylene blending modified non-individual body that is used as use, though this scheme can produce affinity and promptly bond with the surface of metallic framework, but because the ratio that adds is still higher, still influence the serviceability temperature and the corrosion resistance of this pipeline, particularly the cost of polymer non-individual body is still higher, and pipeline is lacked competitiveness and can not be enlarged range of application.Particularly caliber is bigger, and the pipeline of thickness of pipe wall is big because of adding the graft polymers amount, and the cost height more can't be competed with other pipeline.Therefore need that more economical feasible scheme solves the metallic framework of metallic skeleton reinforced composite plastic pipe and the interface affinity of polymer non-individual body is an adhesion problem.Only having the patent of application number 99112221.6 to mention in method in the above-mentioned patent utilizes the steel plate that is compounded with organic matter layer earlier to make the method that the tubular metallic framework is extruded the composition polymer non-individual body again, and the method that before extruding the composition polymer non-individual body, earlier the tubular metallic framework is added composite bed or spraying organic matter composite bed, but just how to carry out or do not finish not disclosure with which kind of device and which kind of organic matter composite bed, more do not mention how processing, spraying and application binding agent, and how it to be gone to apply, application, the pertusate metallic framework of spray coating, make the polymer non-individual body by adhesive layer with skeleton bond compound the be play-by-play of composite, particularly Zhuan Zhi report.

Prior art is relevant at steel pipe or aluminum pipe, apply on the steel pipe inside and outside wall or the application adhesive layer after extrude coated polymer layer or will the polymer production tube and the report of adhesive layer bonding back formation multiple tube again, but this multiple tube is different from the multiple tube of pertusate metallic framework and polymer, this with do not have the compound multiple tube of metal tube of hole, though bearing capacity is fine, the pipeline corrosion protection ability is also strong, but the linear expansion coefficient of polymeric layer and metal tube differs from an order of magnitude, when used by thermal environment or used by cold environment, polymeric layer can have significantly than the metallic conduit in intermediate layer and elongates or shortens, the metallic conduit that makes pipe end is exposed and make anticorrosion inefficacy, pipe fitting connects with only depending on outer very thin one layer of polymeric being connected of pipeline in addition, no matter be that hot melt connects or mechanical grip connects, all there is not bonding strength, bearing capacity and pipeline bearing capacity are incoordinate for pipe network, the junction is the weakest and not durable, dangerous, this pipeline is because the linear expansion coefficient difference practical application effect of the varying number level of different materials and bad.

But the steel-plastics composite pipe of pertusate metallic framework, because of the polymer-coated metal skeleton, polymer utilizes the hole on the skeleton to form inside and outside wall, the ectonexine of the polymer on the actual tube wall is an one by hole Mao Jie Even, when this polymer ectonexine that is pinned by the hole of skeleton uses under hot-cool environment, the linear expansion coefficient of linear expansion coefficient and metallic framework is the same order of magnitude, this is the very important performance that this pipeline obtains, this steel-plastics composite pipe does not have the problem of the different linear expansion coefficients of compound polymeric layer of above-mentioned the sort of and the metal tube that does not have hole and metal tube, and this performance is in control widely this kind and uses.Particularly the polymer of skeleton ectonexine is one by the hole riveted joint of skeleton, when pipeline is connected by the pipe fitting hot melt, the intensity of junction is not only to be born by outer layer copolymer, but connect as one by polymer in skin and the hole and internal layer polymer, the intensity of metallic framework participates in addition, this bonding strength is equal to the intensity of this steel-plastics composite pipe fully, high more a lot of than the metal composite pipe pipe network bonding strength that does not have hole, combination property and antiseptic property might as well be a lot, so though the metal composite pipe of two kinds of different structures exists in all that the metal surface applies or the application adhesive layer increases plyability with polymer, but the structure difference of pipe, method difference and process units are more inequality, because of adhesive coated or application that the hole skeleton is arranged are passed hole and metal surface bonding and coating by binding agent.The metal tube that does not have hole is respectively at the inside and outside wall coated with adhesive layer composition polymer layer of metal tube, and internal layer and outer the separation by metal tube become one.

The utility model content:

The purpose of this utility model is in order to overcome above deficiency, a kind of interface affinity problem that can solve the metallic framework polymer non-individual body in the metallic skeleton reinforced composite plastic pipe is provided, can produce the bearing capacity height, anti-corrosion capability is strong, the heat resistance height, cost is low, the continuous process units of steel-plastics composite pipe that hole tubular steel skeleton external coating adhesive layer is arranged of the multiple tube that the scope of application is wide.

The purpose of this utility model is achieved like this:

The utility model has the continuous process units of steel-plastics composite pipe of hole steel skeleton surface spraying dress binding agent to comprise the moulding sizing welding mechanism that hole tubular steel skeleton is arranged that is arranged in order, the hole that passes the tubular steel skeleton within it outer surface form the cladding steel skeleton the polymer non-individual body extrude composite structure, the sizing cooling forming mechanism of multiple tube, extrude the die head of the molten polymer passage that has at least one to contain shaping mold cavity in the composite structure and be communicated with shaping mold cavity, the hollow-core mould coaxial with shaping mold cavity, it is characterized in that the unsettled shaping mold cavity that passes of hollow-core mould one end, before extruding composite structure the binding agent applying mechanism that can all adhere to binding agent by the hole of tubular steel skeleton at the steel skeleton surfaces externally and internally is simultaneously arranged, have at least an end that is contained on the Powder Recovery protecting cover box to stretch into case interior podwer gun and/or powder-feeder in the binding agent applying mechanism, and/or be contained in fluid bed in the Powder Recovery protecting cover box, the heater that the heating of pair skeleton and/or sticking powder skeleton is arranged before or after the binding agent applying mechanism, extruding has the interior cooling calibration sleeve to the cooling of multiple tube inwall that is communicated with hollow-core mould in the composite structure, cooling medium is in communication with the outside by hollow-core mould.

Above-mentioned binding agent applying mechanism has by cable or liquid cable and is connected with electrode in podwer gun or the fluid bed case and to the electrostatic generator of adhesive powder effect static.

Before the above-mentioned binding agent applying mechanism mandrel clamp mechanism is arranged, the other end of hollow core shaft is fixed on moulding sizing welding mechanism or the mandrel clamp mechanism.

The above-mentioned interior cooling sizing to the cooling of multiple tube inwall that is communicated with hollow-core mould in the composite structure of extruding is with the passage that vacuumizes that is in communication with the outside.

The above-mentioned die head of extruding in the composite structure is two, the polymer of extruding in molten polymer runner in one of them die head and the shaping mold cavity forms polymer inner layer by the sizing ring set in the shaping mold cavity on the tubular steel skeleton, the polymer of extruding in molten polymer runner in another die head and the forming cavity forms polymeric outer layer by the sizing ring set in the shaping mold cavity on the tubular steel skeleton.

Shaping mold cavity in above-mentioned two die heads extruding in the composite structure fuses.

The moulding sizing welding mechanism of above-mentioned tubular steel skeleton comprises frame, the steel plate that makes hole with holes that is loaded on the frame vertically rolls at least one composing type wheel of cylindrical skeleton and/or the former that becomes jacket to form, the shaping sizing tool that at least one group of sizing wheel and/or the calibration sleeve of the cylindrical skeleton shaping sizing of moulding are formed is with the be welded electric welding machine of tubular steel skeleton of sizing cylindrical skeleton seam.

Organic frame in the moulding sizing welding mechanism of above-mentioned tubular steel skeleton, be positioned at the radially pay off rack of frame front end, be loaded on the mandrel that contains the tubular support electrode on the frame, sky is enclosed within the broadwise pay off rack on the mandrel, be subjected to motor-operated wire spool, sky is enclosed within the motor-operated rotating disk that rotates that is subjected on the mandrel, on the rotating disk be with the mandrel symmetry axis and with tubular support electrode opposite position at least one pair of weldering that is connected with power positive cathode respectively wheel is arranged.

Organic frame in the moulding sizing welding mechanism of above-mentioned tubular steel skeleton, be contained in the motor-operated broadwise rotating disk that contains the broadwise draw drum that on mandrel, twines the broadwise reinforcing bar that is subjected on the frame, promote the cam or the broadwise reinforcing bar spiral forming device of the axially-movable of broadwise reinforcing bar, with the mandrel is that central shaft is along the radially draw drum that circumferentially is contained on the frame, anchor pad is pressed in the pressure welding wheel on the radially reinforcing bar and broadwise reinforcing bar and the electric welding machine of welding electrode conductor respectively.

Organic frame in the above-mentioned moulding sizing welding mechanism, be positioned at the main shaft that screw winding forms hole steel plate cylindrical skeleton that is used on the frame, be loaded on the interior roller of the assurance cylindrical skeleton internal diameter on the main shaft, be contained in rotating disk on the frame by bearing, the roller that is connected with rotating disk, be enclosed within the hole pattern strip charging tray that is connected with motor on the main shaft, cooperate volume to press the hole pattern strip to be shaped to the pressure roller of cylindrical skeleton with interior roller, the cam or the block that cooperate the cylindrical skeleton axially-movable that forms with roller in the promotion of dial rotation with pressure roller, be contained on the rotating disk cross the electricity ring and with the brush on the frame of being contained in of crossing that the electricity ring cooperates, the electric welding machine that rotates with rotating disk.

Organic frame in the above-mentioned moulding sizing welding mechanism, be contained in the steel band that the nip rolls of at least one pair of drive that the steel plate band that makes hole with holes on the frame pinched forms and push machine, the butt joint of steel plate band spiral is curled be the outer roller of at least three rotations of tubular, electric welding machine along what cylindrical skeleton circumferentially distributed.

Above-mentioned be provided with the shut-off mechanism that tubular steel skeleton branch is cut to the tubular steel skeleton of a section fixed length before extruding composite structure, clamp hollow shaft, prevent the mandrel clamp mechanism of mandrel to play, the tubular steel skeleton of being made up of at least one pair of pressure roller or the crawler belt of drive with the segmentation fixed length pushes the delivery device of into extruding in the composite structure.

The above-mentioned hollow-core mould of extruding in the composite structure inserts the interior tubular steel skeleton rotation with spiral forming of tubular steel skeleton, and the afterbody that is supported on the hollow core shaft on the moulding sizing welding mechanism has the rotary connector that is connected with vacuum pipe with inner cooling medium.

Referring to Fig. 1～Figure 32, moulding sizing welding mechanism is wound in pertusate tubular steel skeleton with hole pattern steel plate band or steel wire spiral, the binding agent applying mechanism is by heating and static and/or the fluidized bed painting adhesive powder of the hole outer surface utilization within it on the tubular steel skeleton to skeleton, make the steel skeleton surfaces externally and internally all adhere to binding agent and coated with adhesive, extrude the polymer continuity body of composite structure outer surface formation within it and cladding steel skeleton, sizing cooling forming mechanism is with its cooling sizing and be formed with the steel-plastics composite pipe that hole tubular steel skeleton surfaces externally and internally sprayed or be coated with tack coat.Binding agent can adopt ethene and maleic anhydride or acrylic ester grafted copolymer, or is grafted with other copolymer of polar bond on ethene or propylene.And polymeric layer material is high density polyethylene (HDPE) or crosslinked polyethylene or polypropylene.

The utility model device solves the metallic framework of metallic skeleton reinforced composite plastic pipe and the interface affinity of polymer non-individual body be adhesion problem.Adopted the binding agent applying mechanism that spraying or coated with adhesive are being arranged on the hole steel skeleton in the past extruding the composition polymer non-individual body, and made the polymer non-individual body skeleton is compound for the steel-plastics composite pipe of hole skeleton is arranged by binding agent.This composite pipe pressure-bearing ability height, anti-corrosion capability is strong, the heat resistance height, cost is low, and the scope of application is wide.

Description of drawings:

Fig. 1 is the utility model structural representation Fig. 1.

Fig. 2 is moulding sizing welding mechanism, binding agent applying mechanism, extrudes the composite structure location drawing.

Fig. 3 is another structural representation of binding agent applying mechanism.

Fig. 4 is a binding agent applying mechanism structural representation again.

Fig. 5 is the another location figure of heater.

Fig. 6 is the utility model structure chart 2.

Fig. 7 is the utility model structure chart 3.

Fig. 8 is that the steel wire spiral twines tubular steel skeleton moulding sizing welding mechanism schematic diagram among Fig. 7.

Fig. 9 is tubular welding supporting electrode structural representation.

Figure 10 is tubular welding supporting electrode and disk position Fig. 1.

Figure 11 is tubular welding supporting electrode and disk position Fig. 2.

Figure 12 is three phase mains and weldering wheel location Fig. 1.

Figure 13 is three phase mains and weldering wheel location Fig. 2.

Figure 14 is the moulding sizing welding mechanism structural representation of tubular steel skeleton.

Figure 15 is the broadwise reinforcing bar draw drum and the broadwise reinforcing bar spiral forming device location drawing among Figure 14.

Figure 16 is that A among Figure 15 is to view.

Figure 17 is the moulding sizing welding mechanism structural representation of tubular steel skeleton.

Figure 18 is the B-B cutaway view of Figure 17.

Figure 19 is pressure welding wheel location figure.

Figure 20 is the structural representation of cylindrical skeleton moulding sizing welding mechanism.

Figure 21 is binding agent applying mechanism and two inside and outside ELECTRODE WITH BILAYER POLYMERIC thing shaping mechanism locations drawing with independent forming cavity.

Figure 22 is two inside and outside ELECTRODE WITH BILAYER POLYMERIC thing builder structural representations that independent forming cavity is formed.

Figure 23 is a utility model apparatus structure schematic diagram 4.

Figure 24 is the vertical view of Figure 23.

Figure 25 is the utility model apparatus structure schematic diagram 6.

Figure 26 is the vertical view of Figure 25.

Figure 27 is a steel skeleton spiral forming mechanism structural representation.

Figure 28 is an inside and outside ELECTRODE WITH BILAYER POLYMERIC thing extrusion molding mechanism structural representation.

Figure 29 twines tubular steel skeleton moulding welding mechanism structural representation for spiral.

Figure 30 is that the C of Figure 29 is to view.

Figure 31 curls for the butt joint of steel skeleton spiral and is tubular fabric welding moulding machine structural representation.

Figure 32 is that D among Figure 31 is to view.

The specific embodiment:

Embodiment 1:

Fig. 1～Fig. 5 has provided the utility model embodiment 1 figure.By compound pipe molding technology precedence be provided with moulding sizing welding mechanism 1, binding agent applying mechanism 2, extrude composite structure 3, sizing cooling forming mechanism 4, to skeleton and/or sticking powder skeleton heater 5.

Referring to Fig. 2, the moulding sizing welding mechanism of tubular steel skeleton is by frame 6, the steel plate that can make hole with holes 7 that is contained on the frame vertically rolls into the former shaping mechanism 8 that cylindrical skeleton is made up of many composing type wheels, can be with the further accurate sizing mechanism of forming by many groups fixed wheel 9 of shaping sizing of the cylindrical skeleton that is shaped, welding motor 10, cylindrical skeleton calibration sleeve 11 is formed.Powder Recovery protecting cover box 12 is arranged in the binding agent applying mechanism, be positioned at the fluid bed 13 of Powder Recovery protecting cover box, two that are installed on the Powder Recovery protecting cover box are advanced powder spray gun (or powder-feeder) 14, can to skeleton dust so that powder adherence at the skeleton surfaces externally and internally, what spray gun (or powder-feeder) had an adhesive powder can be to the powder generation static negative electrode effect by spray gun for powder pipeline and electrode, spray gun or powder-feeder connect electrostatic generator 15 by cable or liquid cable, the static electrification or the adhesive powder 16 of static electrification are not arranged in the fluid bed, when spray gun (or powder-feeder) dusts (or advancing powder), can utilize static that electrostatic generator takes place to be opposite to negative electrode discharge on the spray gun (or powder-feeder) by cable also can adopt as shown in Figure 3 the static negative electrode discharge in the fluid bed of being opposite to powder effect and the negative electrode that forms static (sequence number 17 among Fig. 3,18 are respectively microwell plate, sealing device), so that passing the positive electrode that the steel skeleton hole utilizes skeleton ground connection, powder acts on all adhering powders of surfaces externally and internally, also can not utilize electrostatic generator, adopt the fluid bed that only utilizes shown in Figure 4 to make powder pass the skeleton hole, or electrostatic generator and fluid bed all adopt simultaneously at surfaces externally and internally adhering powder all.Electrostatic generator also can be microminiaturized, place in spray gun or the feeder, be called operated type in the rifle, do not need high-tension cable just can be directly the powder effect static that passes through of electrode pair by the electrostatic generator in the rifle, the powder of static electrification is the same general also electronegative with the powder in the said apparatus, the electrode of steel skeleton ground connection is generally positive electrode, and the electrostatic interaction of powder makes powder be easier to pass the hole of skeleton, and outer surface all easily adheres to and the fusion adhesion within it.Applying mechanism also can not be provided with electrostatic generator and come the powder effect static by spray gun or powder-feeder, but the frictional static that produces when utilizing the selection design of podwer gun to make powder by podwer gun makes powder belt static realize the frictional static application.Extrude the shaping mold cavity 20 that contains die sleeve sizing ring 19 is arranged in the composite structure 3, the die head 22 of the molten polymer passage 21 that is communicated with shaping mold cavity 20, be positioned at the hollow-core mould with positioning boss 23 that is connected with hollow core shaft applying mechanism die sleeve, the interior cold cover 24 to the cooling of multiple tube inwall of the vacuum-pumping that is communicated with hollow-core mould, cooling medium and vacuum pipe are in communication with the outside by hollow-core construction.Sequence number 25 among Fig. 2 is a steel-plastics composite pipe. the heater 5 before applying mechanism, and can heat afterwards earlier skeleton and dust, stick on the skeleton Yi Bian make to dust, Yi Bian fusion is coated on the skeleton.Also heater can be installed behind applying mechanism as shown in Figure 5, can make easier the flowing of dusting to the skeleton heating of adhering powder, the powder that passes hole is easier in inner surface adhesion fusion coating skeleton.

Embodiment 2:

Fig. 6 has provided the utility model embodiment 2 figure.Present embodiment 2 is basic same with embodiment 1.Do not exist together is all to be provided with cylindrical skeleton heater 5 before and after the binding agent applying mechanism.The advantage of heater is set respectively, the thickness that can increase the application binding agent makes the better fusion of binding agent of application and coats skeleton, can increase the warm-up ability of skeleton, in extruding the die head of composite structure better the skeleton ectonexine form the polymer non-individual body and with binding agent and skeleton bonding or compound more firm.

Embodiment 3:

Fig. 7, Fig. 8 have provided the utility model embodiment 3 structural representations.Have the steel wire spiral to twine tubular steel skeleton moulding sizing welding mechanism 26 in the present embodiment, steel-wire carcass is with binding agent spray body 27, extruded polymer extrude composite structure 28, the sizing cooling forming mechanism 29 of multiple tube.Moulding sizing welding mechanism 26 comprises frame 27, be positioned at the radially pay off rack 28 of frame front end, be loaded on the mandrel 30 that contains tubular supporting electrode 29 on the frame, sky is enclosed within and is subjected to motor drives wrapping wire rotating disk 31 on the mandrel, sky is enclosed within the pad that rotates 32 that is subjected to driven by motor on the mandrel, on the pad be with the mandrel symmetry axis and with the conducting ring opposite position on a pair of weldering wheel 34 that is connected with three phase mains 33 both positive and negative polarities is respectively arranged.

Can be fixed with conducting ring 36 on it, around at least one butt welding wheel 37 of tubular supporting electrode rotation as Fig. 9, Figure 10, the tubular welding supporting electrode 35 that can evenly dispose the warp-wise steel wire of uniform tension in order at circumference shown in Figure 11.Broadwise reinforcing bar during rotating disk 38 rotations on its dish goes up broadwise reinforcing bar guide wheel by dish and the weldering wheel twines the radially reinforcing wire on the tubular supporting electrode, the source of welding current of connecting by conducting ring is communicated with the weldering wheel, during the contacting of the broadwise steel wire that weldering wheel is exerted pressure contact or coated certain cornerite and steel radial, docking point sends welding current, and at this moment weldering wheel is taken turns and left certain distance and only depend on the winding power of broadwise steel wire to weld exert pressure welding or the weldering of crosspoint that contact of broadwise steel wire and warp-wise steel wire.The welding current of at least one butt welding wheel is respectively both positive and negative polarity as shown in figure 12, or the weldering wheel is for anodal as shown in figure 13, and the tubular supporting electrode is a negative pole.

Figure 14～Figure 19 is the moulding sizing welding mechanism structural representation of tubular steel skeleton.Comprise frame 39, be contained in being subjected on the frame and twine the broadwise rotating disk 42 that the broadwise steel wire contains broadwise draw drum 41 on motor-operated hollow core shaft 40 that is beneficial to the traction moulding that tapering arranged in the front portion that is connected with support, promote the axially movable broadwise reinforcing bar of broadwise reinforcing bar spiral forming device 43, with the mandrel is that central shaft is along the radially draw drum 44, the anchor pad 45 that circumferentially are contained on the frame, be pressed in broadwise reinforcing bar and the three phase mains 46 on the reinforcing bar radially respectively, the welding electrode conductor 47 that positive and negative electrode is communicated with, pressure welding wheel 48.Electric welding machine 49.Reinforcing bar pressure roller 50 is arranged on reinforcing bar.Cam 51 is arranged in the former.Extruding in the die sleeve 52 shown in the composite structure as shown in figure 17 steel skeleton locating ring 53 is arranged.Be distributed with on the inner periphery of steel skeleton locating ring with radially reinforcing bar is the same number of and can pass through the radially groove 54 of reinforcing bar.Vacuum-pumping tube and the cooling tube 55 of the hollow core shaft of passing to interior sizing tube arranged in the hollow core shaft.Broadwise steel wire spiral on the helix former twines, the rotation of being disposed on the former can promote the cam of helically-wound shaped broadwise steel wire axially-movable and constantly push the broadwise reinforcing bar to reinforcing bar pressure welding wheel 48, when the warp-wise reinforcing bar under the pressure welding wheel contacted with the broadwise reinforcing bar, just producing the pressure type of being welded was pertusate tubular steel skeleton.When the warp-wise reinforcing bar contacts with the broadwise reinforcing bar, owing to the hauling machine of multiple tube process units to the traction of multiple tube and warp-wise reinforcing bar make draw back between the broadwise reinforcing bar certain distance form hole convenient in the application of the lip-deep binding agent of skeleton ectonexine compound and polymer extrude compound.

Figure 20 has provided the structural representation of cylindrical skeleton moulding sizing welding mechanism.Comprise frame 56, be positioned at the hollow spindle 57 that screw winding forms the cylindrical skeleton of hole steel plate that is used on the frame, be loaded on the interior roller 58 of sizing of the assurance cylindrical skeleton internal diameter on the main shaft, be contained in rotating disk 59 on the frame by bearing, be enclosed within the hole pattern steel plate band charging tray 60 that is connected with motor by transmission mechanism on the main shaft, cooperate volume to press the hole pattern strip to be shaped to the pressure roller 61 of cylindrical skeleton with interior roller, the cam 62 that cooperates the cylindrical skeleton axially-movable that is shaped with roller in the promotion of dial rotation with pressure roller, be contained on the rotating disk cross electricity ring 63 and with the brush 64 on the frame of being contained in of crossing that the electricity ring cooperates, electric welding machine 65 with the rotating disk rotation, by the roller 67 that roller support 66 is connected with rotating disk, roller 68 1 end is contained on the roller support.

Can adopt as Figure 21, shown in Figure 22 the skeleton surfaces externally and internally different respectively and extrude composite structure 69 for inside and outside ELECTRODE WITH BILAYER POLYMERIC thing, the runner 72 of extruding internal layer polymer on the cylindrical skeleton 71 of the fenestrated of spraying adhesive that the extruder 70 that comprises and extrude internal layer polymer is communicated with and the internal layer die head 74 that comprises the sizing ring 73 in the die sleeve comprise the runner of extruding outer layer copolymer on the cylindrical skeleton of compound internal layer polymer 76 that is communicated with the extruder 75 of extruding outer layer copolymer and the outer die head 78 that comprises the sizing ring 77 in the die sleeve.Cylindrical skeleton is through extruding the steel-plastics composite pipe that has become to have inside and outside different performance and form polymeric layer behind the composite structure.

Embodiment 4:

Figure 23, Figure 24 have provided the utility model embodiment 4 figure.Organic frame 80 in the moulding sizing welding mechanism 79 of tubular steel skeleton, be contained in the steel band pushers 81 that many folder rods to drive that the steel plate that makes hole with holes (band) on the frame pinched are formed, steel plate (band) spiral abutment joint circumnutated be the outer roller 82 and the electric welding machine 83 of many rotations of tubular along what cylindrical skeleton circumferentially distributed.Behind moulding sizing welding mechanism, be aligned in sequence with cutting machine 84 to the tubular steel skeleton cutting machine of rotation, clamping is passed applying mechanism and is extruded the mandrel clamp mechanism that prevents the mandrel axial float 86,87 of the mandrel 85 of composite structure, the tubular steel skeleton of being made up of many pair rollers of drive that will be segmented into a section 88 pushes the delivery device 89 of binding agent applying mechanism, the binding agent applying mechanism 90 of band heater, extruded polymer extrude composite structure 91, there are water, gas, vacuumizing joint 93,94 in the sizing cooling forming mechanism 92 of multiple tube on the mandrel.Steel band has unreeling machine 95 before pushing machine 81.

Embodiment 5:

Figure 25, Figure 26 have provided the utility model embodiment 5 figure.Organic frame 97, steel band pusher 98 in the moulding sizing welding mechanism 96 of tubular steel skeleton, ribbon spiral is curled be the outer roller 99 of many rotations of the tubular of abutment joint formula along what cylindrical skeleton circumferentially distributed, electric welding machine 100, extrude composite structure 101, hollow core shaft 102 is to insert the interior steel skeleton with spiral forming of tubular steel skeleton to rotate.The afterbody that mandrel is supported on the moulding sizing welding mechanism has the rotary jointing 103 that is connected with vacuum pipe with inner cooling medium.What polymer was arranged behind the binding agent applying mechanism successively extrudes composite structure 104, the cooling forming mechanism 105 of multiple tube.

Figure 27 is the structural representation of steel skeleton spiral forming machine.Comprise and be subjected to motor-operated interior roller 107, outer roller 108, electric welding machine 108.

Figure 28 is an inside and outside ELECTRODE WITH BILAYER POLYMERIC thing extrusion molding mechanism structural representation.Comprise containing die sleeve 109, be positioned at sizing ring 110, the shaping mold cavity 111 of die sleeve, the die head 113 of the runner 112 that is communicated with the crowded machine of extruding internal layer polymer.Contain die sleeve 114, be positioned at the runner 116 that the sizing ring 115 of die sleeve is communicated with the extruder of extruding outer layer copolymer, the die head 118 of shaping mold cavity 117.The die sleeve and the shaping mold cavity of two die heads are connected as a single entity.On the cylindrical skeleton 119 of the fenestrated of application binding agent, apply internal layer polymer and outer layer copolymer respectively, make it to become steel-plastics composite pipe 120 with inside and outside different performance and form polymeric layer.

Figure 29, the 30th, spiral twine tubular steel skeleton moulding welding mechanism structural representation.Comprise frame 121, place the warp-wise pay off rack 122 on the frame, sky is enclosed within the motor-operated rotating disk 123 that is subjected on the frame of being contained on the mandrel, target 124, be contained in the weldering wheel 127 that the broadwise draw drum 125 on the rotating disk is connected with three phase mains 126, a utmost point of welding electrode 128 coexists on the rotating disk.The broadwise reinforcing bar twines the warp-wise reinforcing bar and is welded as the tubular steel skeleton as can be seen from diagram, and the weldering wheel of this structure is not pressed on the broadwise reinforcing bar, but produces welding pressure and make the contact point welding by the winding power of broadwise reinforcing bar to the warp-wise reinforcing bar.

Embodiment 6:

Figure 31,32 have provided the structural representation of the utility model embodiment 6, present embodiment is that the steel plate that utilizes the butt joint of porose steel plate spiral to curl to form for the nip rolls of at least one pair of drive of the moulding sizing welding mechanism 129 of tubular welding pushes three outer rollers 131 of machine 130 and rotation at least and plasmatron 132 seam of curling steel plate 133 is welded into cylindrical skeleton 134, it is hollow utilizing the skeleton endoporus, do not extrude the hollow core shaft of composite structure at this, at the cylindrical skeleton inner surface endoporus spray gun or powder-feeder 135 are set, in the cylindrical skeleton periphery outer surface spray gun or powder-feeder 136 and fluid bed 137 are set, Powder Recovery protecting cover box 138, electrostatic generator 139 is connected with cable with the outer surface spray gun with the endoporus spray gun, form the binding agent applying mechanism, before applying mechanism and after heater 5 all is set, this mechanism can make powder melts and coat skeleton simultaneously at skeleton endoporus and outer surface application adhesive powder.In the skeleton week that adheres to and coat binding agent shut-off mechanism 140 is set upwards, so that skeleton utilizes the mandrel 85 of Figure 23, Figure 24 again after being cut by a section and prevents the mandrel clamp mechanism 86,87 of mandrel axial float, the propulsive mechanism 89 of tubular steel skeleton, extrude composite structure 91, the sizing cooling forming mechanism 92 of multiple tube, water on the mandrel, the tubular steel skeleton of coated with adhesive is extruded compound coated polymer to gas vacuumizing joint 93,94 and the sizing cooling forming is a steel-plastics composite pipe.

Claims (13)

1, the continuous process units of steel-plastics composite pipe that hole steel skeleton external coating binding agent is arranged, comprise the moulding sizing welding mechanism that hole tubular steel skeleton is arranged that is arranged in order, the hole that passes the tubular steel skeleton within it outer surface form the cladding steel skeleton the polymer non-individual body extrude composite structure, the sizing cooling forming mechanism of multiple tube, extrude the die head of the molten polymer passage that has at least one to contain shaping mold cavity in the composite structure and be communicated with shaping mold cavity, the hollow-core mould coaxial with shaping mold cavity, it is characterized in that the unsettled shaping mold cavity that passes of hollow-core mould one end, extrude have before the composite structure can be by the tubular steel skeleton hole in steel skeleton, outer surface all adheres to the binding agent applying mechanism of binding agent simultaneously, there is an end that is contained on Powder Recovery protecting cover box and/or the fluid bed to stretch into case interior podwer gun and/or powder-feeder in the binding agent applying mechanism, the heater that the heating of pair steel skeleton and/or sticking powder steel skeleton is arranged before or after the binding agent applying mechanism, extruding has the interior cooling calibration sleeve to the cooling of multiple tube inwall that is communicated with hollow-core mould in the composite structure, cooling medium is in communication with the outside by hollow-core mould.

2,, it is characterized in that the binding agent applying mechanism has by cable or liquid cable to be connected with electrode in podwer gun or the fluid bed and to the electrostatic generator of adhesive powder effect static as claims 1 described continuous process units of steel-plastics composite pipe that hole steel skeleton external coating binding agent is arranged.

3, the continuous process units of steel-plastics composite pipe that hole steel skeleton external coating binding agent is arranged as claimed in claim 1 or 2, it is characterized in that before the binding agent applying mechanism mandrel clamp mechanism being arranged, the other end of hollow core shaft is fixed on moulding sizing welding mechanism or the mandrel clamp mechanism.

4,, it is characterized in that extruding the interior cooling sizing that is communicated with hollow-core mould in the composite structure and be with the passage that vacuumizes that is in communication with the outside the cooling of multiple tube inwall as right 1 or the 2 described continuous process units of steel-plastics composite pipe that hole steel skeleton external coating binding agent is arranged.

5, the continuous process units of steel-plastics composite pipe that hole steel skeleton external coating binding agent is arranged as claimed in claim 1 or 2, the die head that it is characterized in that extruding in the composite structure is two, the polymer of extruding in molten polymer runner in one of them die head and the shaping mold cavity forms polymer inner layer by the sizing ring set in the shaping mold cavity on the tubular steel skeleton, the polymer of extruding in molten polymer runner in another die head and the forming cavity forms polymeric outer layer by the sizing ring set in the shaping mold cavity on the tubular steel skeleton.

6, the continuous process units of steel-plastics composite pipe that hole steel skeleton external coating binding agent is arranged as claimed in claim 5, the shaping mold cavity that it is characterized in that extruding in two die heads in the composite structure fuses.

7, the continuous process units of steel-plastics composite pipe that hole steel skeleton external coating binding agent is arranged as claimed in claim 1 or 2, the moulding sizing welding mechanism that it is characterized in that the tubular steel skeleton comprises frame, the steel plate that makes hole with holes that is loaded on the frame vertically rolls at least one composing type wheel of cylindrical skeleton and/or the former that becomes jacket to form, the shaping sizing tool that at least one group of sizing wheel and/or the calibration sleeve of the cylindrical skeleton shaping sizing of moulding are formed is with the be welded electric welding machine of tubular steel skeleton of sizing cylindrical skeleton seam.

8, the continuous process units of steel-plastics composite pipe that hole steel skeleton external coating binding agent is arranged as claimed in claim 1 or 2, it is characterized in that organic frame in the moulding sizing welding mechanism of tubular steel skeleton, be positioned at the radially pay off rack of frame front end, be loaded on the mandrel that contains the tubular support electrode on the frame, sky is enclosed within the broadwise pay off rack on the mandrel, be subjected to motor-operated wire spool, sky is enclosed within the motor-operated rotating disk that rotates that is subjected on the mandrel, on the rotating disk be with the mandrel symmetry axis and with tubular support electrode opposite position at least one pair of weldering that is connected with power positive cathode respectively wheel is arranged.

9, the continuous process units of steel-plastics composite pipe that hole steel skeleton external coating binding agent is arranged as claimed in claim 1 or 2, it is characterized in that organic frame in the moulding sizing welding mechanism of tubular steel skeleton, be contained in the motor-operated broadwise rotating disk that contains the broadwise draw drum that on mandrel, twines the broadwise reinforcing bar that is subjected on the frame, promote the cam or the broadwise reinforcing bar spiral forming device of the axially-movable of broadwise reinforcing bar, with the mandrel is that central shaft is along the radially draw drum that circumferentially is contained on the frame, anchor pad is pressed in the pressure welding wheel on the radially reinforcing bar and broadwise reinforcing bar and the electric welding machine of welding electrode conductor respectively.

10, the continuous process units of steel-plastics composite pipe that hole steel skeleton external coating binding agent is arranged as claimed in claim 1 or 2, it is characterized in that organic frame in the moulding sizing welding mechanism, be positioned at the main shaft that screw winding forms hole steel plate cylindrical skeleton that is used on the frame, be loaded on the interior roller of the assurance cylindrical skeleton internal diameter on the main shaft, be contained in rotating disk on the frame by bearing, the roller that is connected with rotating disk, be enclosed within the hole pattern strip charging tray that is connected with motor on the main shaft, cooperate volume to press the hole pattern strip to be shaped to the pressure roller of cylindrical skeleton with interior roller, the cam or the block that cooperate the cylindrical skeleton axially-movable that forms with roller in the promotion of dial rotation with pressure roller, be contained on the rotating disk cross the electricity ring and with the brush on the frame of being contained in of crossing that the electricity ring cooperates, the electric welding machine that rotates with rotating disk.

The continuous process units of steel-plastics composite pipe that 11, hole steel skeleton external coating binding agent is arranged as claimed in claim 1 or 2, it is characterized in that organic frame in the moulding sizing welding mechanism, be contained in the steel band that the nip rolls of at least one pair of drive that the steel plate band that makes hole with holes on the frame pinched forms and push machine, the butt joint of steel plate band spiral is curled be the outer roller of at least three rotations of tubular, electric welding machine along what cylindrical skeleton circumferentially distributed.

12, the continuous process units of steel-plastics composite pipe that hole steel skeleton external coating binding agent is arranged as claimed in claim 1 or 2, it is characterized in that before extruding composite structure, being provided with the shut-off mechanism that tubular steel skeleton branch is cut to the tubular steel skeleton of a section fixed length, clamp hollow core shaft, prevent the mandrel clamp mechanism of hollow core shaft axial float, the tubular steel skeleton of being made up of at least one pair of pressure roller or the crawler belt of drive with the segmentation fixed length pushes the delivery device of into extruding in the composite structure.

13, the continuous process units of steel-plastics composite pipe that hole steel skeleton external coating binding agent is arranged as claimed in claim 1 or 2, the hollow core shaft that it is characterized in that extruding in the composite structure is inserted the interior tubular steel skeleton rotation with spiral forming of tubular steel skeleton, and the afterbody that is supported on the hollow-core mould on the moulding sizing welding mechanism has the rotary connector that is connected with vacuum pipe with inner cooling medium.

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