CN2524912Y - External diameter positioning device for producing steel skelecton reinforced polyacrylic plastic composite tube - Google Patents
External diameter positioning device for producing steel skelecton reinforced polyacrylic plastic composite tube Download PDFInfo
- Publication number
- CN2524912Y CN2524912Y CN01256982U CN01256982U CN2524912Y CN 2524912 Y CN2524912 Y CN 2524912Y CN 01256982 U CN01256982 U CN 01256982U CN 01256982 U CN01256982 U CN 01256982U CN 2524912 Y CN2524912 Y CN 2524912Y
- Authority
- CN
- China
- Prior art keywords
- wall
- plastic layer
- plastic composite
- cooling
- steel skeleton
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model provides an external diameter positioning device for producing steel skeleton reinforced polyacrylic plastic composite tube. The utility model comprises a temperature control mechanism which is arranged at the back of a composite extrusion mold die head, is arrayed in turn along the axial movement direction of the composite tube and heats and/or makes temperature conservation to the outer wall of a plastic layer of the composite tube, a dressing mechanism containing a conical cavity used for the dressing of the outer wall of the plastic layer of the composite tube, and a cooling diameter positioning cover used for the cooling diameter positioning of the tube wall. The utility model quickly cools the plastic layer on the inner wall of the polyacrylic (or copolyacrylic) plastic composite tube, simultaneously heats and/or makes temperature conservation to the plastic layer on the outer wall, ensures the plastic layer on the outer wall possesses the plasticity and the fluidity, and has high production efficiency and high qualified production rate.
Description
Technical field:
The utility model relates to a kind of outer diameter-setting equipment, particularly be the outer diameter-setting equipment of a kind of production steel skeleton RPP (containing COPP) plastic composite pipe.
Background technology:
The production method of steel-frame reinforced plastic composite pipe and equipment are as the patent No. 97247111.1,94104509.9,99232026.7,99207916.0 a lot of reports are arranged, their basic forming method is to twine the warp-wise steel wire with the broadwise steel wire, welded contact forms the tubular steel skeleton, or form the tubular steel skeleton with porose steel plate (band) welding or the spiral welding that circumnutates that vertically circumnutates, this steel skeleton is pulled machine travel, enter compound extrusion die, the molten plastic that the machine of being extruded is extruded coats, this compound extrusion die is supporting to have one to cool off mandrel, be enclosed within on the mandrel during steel skeleton motion, when molten plastic coats skeleton, contact the inwall that cooling has but just formed the plastic layer of this multiple tube with the circumferential surface of mandrel, the cooling mandrel is the support that forms multiple tube plastic layer inwall, sizing, the key mechanism of cooling forming, the length of cooling mandrel will be grown, it is high that cooldown rate is wanted, because of it is directly connected to the Forming Quality and the production efficiency of multiple tube.The production method of the production moulding of steel-frame reinforced plastic composite pipe and traditional pure plastic pipe has very big-difference.Traditional pure plastic pipe is that molten plastic is basically formed pipe in extrusion die, the effect that pipe extrusion die or pipe are pulled machine involves die head, certain thickness is arranged in other words because of the wall of pipe is thicker, when being extruded die head, pipe just entered the cooling calibration sleeve with very short distance again, the cooling calibration sleeve is in vacuum tank, owing to vacuumize the pipe of formation the circumference of calibration sleeve is close to support and the cooling of formation to pipe, make pipe cooling sizing, the pipe of preliminary cooling and shaping can be pulled, the process of coming out to enter very soon the cooling calibration sleeve by die head is carried out continuously, also be able to continuously with regard to the production that makes pipe.From then on technology is seen, the production process of pure plastic pipe is the pipe of constantly extruding by self fully, in continuous cooling and shaping (needing cooling fast especially), utilize the preliminary rigidity and the tensile strength that self form that pipe can constantly be drawn, the production of pipe is able to continuously.Because pure plastic pipe can draw pipe in extrusion die outlet and the calibration sleeve that is rubbed and stretch, the hauling speed of the pipe that we can adjust easily (when extrusion capacity is determined when constant), with the plastic tube wall thickness that obtains different plastic tube wall wall thickness and need, also promptly adjust the adjustable homogeneous tube wall thickness of hauling speed; Also can adjust extrusion capacity (when hauling speed is determined when constant), the plastic tube wall thickness that obtains different plastic tube wall thickness and need is also promptly adjusted extrusion capacity and can be adjusted wall thickness.
But the production moulding of steel-frame reinforced plastic composite pipe is to lean on the rigidity and the tensile strength of steel skeleton to realize continuous production moulding is done in the continuous traction of tubing, the attenuation that can not be stretched of the compound wall thickness of extruding the plastic layer inner and outer wall on steel skeleton, their size is determined by squeezing the molten plastic amount on skeleton in the compound extrusion die, and the reservation installation dimension of inboard wall of skeleton and cooling mandrel outer wall is determined, it can not be as the production moulding of pure plastic pipe, can adjust hauling speed or adjusts extrusion capacity and determine the plastic layer of composite plastic pipe inner and outer wall and total wall thickness of tubing.
The production moulding of steel skeleton plastic clad pipe also has any to be very different with pure plastic pipe production, be exactly the multiple tube nominal dimension because of will being final size with the cooling outside dimension, it must be the plastic layer that cools off the sizing inboard wall of skeleton earlier in forming process, cool off the plastic layer of sizing and smoothing skeleton outer wall again, and can not utilize the plastic layer of band conical cavity smoothing mechanism's smoothing outer wall plastic layer and cooling outer wall simultaneously at the plastic layer of cold inwall, otherwise the displacement that can produce skeleton and plastic layer with separate, steel skeleton plastic clad pipe is exactly an external diameter nominal dimension of determining final pipe with such method.
The cooling speed of plastic layer on the cooling mandrel of steel skeleton inwall mentioned in the front, effective cooling length of cooling mandrel is all closed the quality and the efficient of serial multiple tube, but everybody also knows, when having long contacting, multiple tube inwall plastic layer and cooling mandrel must increase the friction on plastic layer and cooling mandrel surface, plastic layer is also big because of the contraction to the cooling source direction that cooling produces when cooling effectiveness is high, increased the friction of plastic layer more with cooling mandrel surface, when the synchronization-moving plastic layer of companion steel skeleton to the adhesive capacity of steel skeleton during less than the friction on plastic layer and cooling mandrel surface, will appear separating of plastic layer and steel skeleton, promptly can produce displacement between two kinds of materials, make the plastic layer that sticks on the skeleton and simultaneously and skeleton generation displacement by plastic layer compound on the hole on the skeleton and the skeleton outer wall.Because of skeleton is a rigidity, can be along with traction continues motion, but plastic layer because cooling shrink to produce excessive to mandrel friction and be left on the mandrel, the structure of or skeleton higher when the viscosity of plastics or surface can increase adhered area and adhesive capacity to the adhesive capacity of skeleton when strong, displacement is not serious with the phenomenon of separating, otherwise understand serious displacement and separate, multiple tube can't be produced.Up to the present, we are in order to overcome this phenomenon, have to select for use the higher resin material of viscosity to produce multiple tube, such as polyvinyl chloride (PVC) or high density polyethylene (HDPE) (HDPE), and will cool off mandrel simultaneously and make bullet by the big young pathbreaker's mandrel of cooling shrinkage factor of multiple tube inwall plastic layer, multiple tube is shunk has a suitable mandrel tapering to cooperate with it simultaneously, do not influence cooling effectiveness, but simultaneously be unlikely to again to make multiple tube inwall plastic layer be retracted to the locking mandrel and produce with the displacement of skeleton with separate.Owing to multiple tube inwall plastic layer can be cooled off fast with this way, corresponding cooling is delivered to multiple tube skeleton outer wall plastic layer and makes the molten plastic layer adhere to network framework more in cooling procedure and move in company with steel skeleton, make the plastic layer that adds motion with bone have enough adhesions to overcome the frictional resistance of plastic layer to mandrel surface and calibration sleeve surface, inner plastic can better be cooled off by mandrel, conical cavity smoothing mechanism smoothing appearance and cooling calibration sleeve cooling sizing that plastic outer layer can be cooled off calibration sleeve outward make multiple tube obtain final outside dimension, make multiple tube energy ordinary production.
But, when we need higher multiple tube production efficiency and change the lower higher resin material of crystallization rate of viscosity to produce multiple tube, run into very big difficulty.The front is mentioned and will be raised the efficiency, must increase cooling mandrel length and reduce coolant temperature, but after increasing cooling mandrel length, multiple tube enters cooling calibration sleeve this section space again and just exposes longlyer (because of the composite pipe blank pipe is to have left after the cooling mandrel after complex extruder head comes out, the base pipe just enters outer cooling calibration sleeve), this segment length can be brought very serious consequence, if the production environment temperature is low, special in the higher north of china in winter production of latitude, the plastic layer surface that contacts with the very low air of temperature, can produce chilling layer very soon on the surface, this phenomenon of resin material that crystalline rate is high is more obvious, when calibration sleeve was to external diameter dressing and cooling sizing outside entering, multiple tube outer wall plastic layer surface serious tree crackle can occur and scratch trace, becomes defective work.Sometimes even because of the surface produces cool off hard formation, can produce excessive frictional resistance with the outer calibration sleeve inner surface of cooling by the conical cavity of calibration sleeve smoothing outside, make plastic layer produce displacement and separate with steel skeleton, the higher resin material of resin that viscosity is low and crystallization rate particularly, to fat, above-mentioned phenomenon is more serious as medium density polyethylene (MDPE) of polypropylene (PP), atactic copolymerized polypropene COPPs such as (PP-R) (PP-B, PP-C) and octene and ethylene copolymer etc.But these resins are important materials of making the higher multiple tube of delivery, heating and temperature resistant grade, and our kind of being lacked in engineering is used should be developed energetically just.If will adopt these resins to produce, higher production efficiency and accepted product percentage are arranged again, we also must overcome aforesaid multiple tube outer wall plastic layer and produce corrugated surface and reduce the friction that its smoothing and cooling fixed diameter process are handled except cooling off the length and increase cooling exchange capacity of mandrel by lengthening.Guaranteeing that plastic layer can not produce separation in company with steel skeleton with moved further, effective method is that multiple tube inwall plastic layer is heated the outer wall plastic layer cooling time fast and/or is incubated, and makes the outer wall plastic layer also have plasticity and flowability.
The utility model content:
The purpose of this utility model is in order to overcome above deficiency, providing a kind of can heat to the outer wall plastic layer cooling time fast and/or be incubated multiple tube inwall plastic layer, make the outer wall plastic layer that plasticity and mobile production efficiency height be arranged, close the outer diameter-setting equipment of the high production steel skeleton RPP plastic composite pipe of product rate.
The purpose of this utility model is achieved in that
The outer diameter-setting equipment that the utility model is produced steel skeleton RPP plastic composite pipe comprises and is positioned to what moving direction was arranged in order multiple tube plastic layer outer wall is heated and/or the temperature-controlling mechanism that be incubated, contains the smoothing mechanism that multiple tube plastic layer outer wall is carried out the conical cavity of smoothing along tubular axle combined behind the compound extrusion die, tube wall is cooled off the cooling calibration sleeve of sizing.
Above-mentioned temperature-controlling mechanism is to be arranged between compound extrusion die and cooling calibration sleeve or to be contained on the smoothing mechanism outer wall or to be positioned at the electric heater of smoothing mechanism inwall.
Above-mentioned electric heater is Kraft formula or drum type brake electrical heating ring, and electrical heating ring inner peripheral surface has coating or the medium of strengthening radiant heat or conduction heat, can carry out heat radiation or carry out heat by smoothing mechanism passing layer to multiple tube plastic layer outer wall.
Above-mentioned coating is far ultrared paint.
Above-mentioned temperature-controlling mechanism is to be positioned between compound extrusion die and cooling calibration sleeve or the heater of the media outlet that contains medium import, the medium runner that communicates with the medium import, communicates with medium runner in the smoothing mechanism, and medium can adopt hot blast, deep fat, hot water etc.
In the above-mentioned heater medium channel electric heater is arranged.
Above-mentioned heater shape is a Kraft formula or cylindric.
Above-mentioned heater for smoothing mechanism be the annulus that the temperature control medium runner is arranged of one.
The outer diameter-setting equipment of the utility model has adopted temperature-controlling mechanism, smoothing mechanism, cooling calibration sleeve, multiple tube inwall plastic layer is heated outer plastic layer cooling the time fast and/or is incubated, make the outer wall plastic layer that plasticity and flowability be arranged, thereby guarantee that plastic layer does not produce separation in company with steel skeleton with moved further.The production efficiency height, the accepted product percentage height.
Description of drawings:
Fig. 1 is the utility model structural representation that contains air-heater blast type temperature-controlling mechanism.
Fig. 2 is the utility model structural representation that contains the temperature-controlling mechanism of electric heater formula.
Fig. 3 is the utility model structural representation that contains the temperature-controlling mechanism of temperature control medium runner.
Fig. 4 is the utility model structural representation that contains the electrical heating type temperature-controlling mechanism.
Fig. 5 is the utility model structural representation that contains the heat radiation type temperature-controlling mechanism.
Fig. 6 is another structural representation of the utility model that contains the heat radiation type temperature-controlling mechanism.
The specific embodiment:
Embodiment 1:
Fig. 1 has provided the utility model embodiment 1 structural representation.Temperature-controlling mechanism-drum type brake storage heater 1 is between compound crowded pipe die head 2 and smoothing mechanism 3.Have on it hot blast runner 4 and communicate with the hot blast runner respectively send hot-air mouth 5, air outlet 6.In the smoothing body 7 in the smoothing mechanism 3 smoothing conical cavity 8 is arranged.Cooling calibration sleeve 9 is contained in the cooling body 10 and is positioned at smoothing mechanism afterbody.During work, steel skeleton pipe 11 is compounded with polypropylene plastics (or COPP) internal layer 12 and polypropylene plastics (or COPP) skin 13 through compound crowded pipe die head internal and external walls, again through temperature-controlling mechanism.This moment is through sending hot-air mouth to send hot blast in temperature-controlling mechanism, to multiple tube heating or insulation.Multiple tube after heating or the insulation forms steel skeleton RPP (or COPP) plastic composite pipe through the cooling of cooling calibration sleeve again after its outer wall of smoothing mechanism is by smoothing.
Embodiment 2:
Fig. 2 has provided embodiment 2 structural representations.Present embodiment 2 is basic same with embodiment 1.Do not exist together is in the medium runner chamber 15 of temperature-controlling mechanism heater 14 electric heater 16 to be housed.The air outlet 17 that communicates with the medium runner chamber is arranged on the heater, and air outlet 18 enters in the heater from air outlet and to be heated by electric heater and pipeline is heated or is incubated.
Embodiment 3:
Fig. 3 has provided embodiment 3 structural representations.Present embodiment 3 is basic same with embodiment 1.Do not exist together is that temperature-controlling mechanism heater 19 is an one with smoothing mechanism.Heat medium flow channel 20 is arranged, the thermal medium inlet 21, the media outlet 22 that communicate with heat medium flow channel 20 on it.Carry out the heat conduction to multiple tube heating or insulation by smoothing mechanism.
Embodiment 4:
Fig. 4 has provided embodiment 4 structural representations.Present embodiment 4 is basic same with embodiment 3.Not existing together is that temperature-controlling mechanism is an electric heater 23, multiple tube is heated or is incubated by smoothing mechanism.This electric heater can controlled voltage or the size of electric current and power.
Embodiment 5:
Fig. 5 has provided embodiment 3 structural representations.Present embodiment 5 is basic same with embodiment 4.Not existing together is on temperature-controlling mechanism heater 24 cavitys 25 walls polylith heat radiation plate 26 to be arranged, and scribbles red line coating 27 far away (or other adds the coating that heat-flash passes layer) on it, is undertaken that heat is conducted and multiple tube is heated or is incubated by smoothing mechanism.
Embodiment 6:
Fig. 6 has provided embodiment 6 structural representations.Present embodiment 6 is basic same with embodiment 5.Do not exist together is that temperature-controlling mechanism heater 28 is between compound crowded pipe die head and smoothing mechanism.The heat conducting coating 30 of reinforcement is arranged on the heat radiation plate 29 in its heater control body.The multiple tube plastic outer layer is carried out heat radiation heating or insulation.
Claims (8)
1, produces the outer diameter-setting equipment of steel skeleton RPP plastic composite pipe, it is characterized in that comprising be positioned at behind the compound extrusion die along the tubular axle combined temperature-controlling mechanism that multiple tube plastic layer outer wall is heated and/or is incubated that is arranged in order to moving direction, contain the smoothing mechanism that multiple tube plastic layer outer wall is carried out the conical cavity of smoothing, to the cooling calibration sleeve of tube wall cooling sizing.
2, the outer diameter-setting equipment of production steel skeleton RPP plastic composite pipe according to claim 1 is characterized in that temperature-controlling mechanism is to be arranged between compound extrusion die and cooling calibration sleeve or to be contained on the smoothing mechanism outer wall or to be positioned at the electric heater of smoothing mechanism inwall.
3, the outer diameter-setting equipment of production steel skeleton RPP plastic composite pipe according to claim 2 is characterized in that electric heater is Kraft formula or drum type brake electrical heating ring, and electrical heating ring inner peripheral surface has coating or the medium of strengthening radiant heat or conduction heat.
4, the outer diameter-setting equipment of production steel skeleton RPP plastic composite pipe according to claim 3 is characterized in that coating is far ultrared paint.
5, the outer diameter-setting equipment of production steel skeleton RPP plastic composite pipe according to claim 1 is characterized in that temperature-controlling mechanism is between compound extrusion die and cooling calibration sleeve or the heater of the media outlet that contains medium import, the medium runner that communicates with the medium import, communicates with medium runner in the smoothing mechanism.
6, the outer diameter-setting equipment of production steel skeleton RPP plastic composite pipe according to claim 5 is characterized in that in the heater medium channel electric heater being arranged.
7, the outer diameter-setting equipment of production steel skeleton RPP plastic composite pipe according to claim 5 is characterized in that heater shape is a Kraft formula or cylindric.
8, the outer diameter-setting equipment of production steel skeleton RPP plastic composite pipe according to claim 5 is characterized in that heater is is the annulus that the temperature control medium runner is arranged of one with smoothing mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01256982U CN2524912Y (en) | 2001-12-21 | 2001-12-21 | External diameter positioning device for producing steel skelecton reinforced polyacrylic plastic composite tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01256982U CN2524912Y (en) | 2001-12-21 | 2001-12-21 | External diameter positioning device for producing steel skelecton reinforced polyacrylic plastic composite tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2524912Y true CN2524912Y (en) | 2002-12-11 |
Family
ID=33665839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01256982U Expired - Fee Related CN2524912Y (en) | 2001-12-21 | 2001-12-21 | External diameter positioning device for producing steel skelecton reinforced polyacrylic plastic composite tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2524912Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109225756A (en) * | 2018-11-05 | 2019-01-18 | 福建亚通新材料科技股份有限公司 | A kind of multiple tube protective layer coating line |
-
2001
- 2001-12-21 CN CN01256982U patent/CN2524912Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109225756A (en) * | 2018-11-05 | 2019-01-18 | 福建亚通新材料科技股份有限公司 | A kind of multiple tube protective layer coating line |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103722717B (en) | A kind of PEI sticking plaster production equipment and process | |
| IE45933B1 (en) | Extrusion process for the manufacture of hollow bodies | |
| CN110978445A (en) | PE pipeline production process and device | |
| CN207156414U (en) | A kind of plastic tube production extrusion die | |
| CN102173972A (en) | Production method and production line of conducting tube | |
| CN1169666C (en) | Method for manufacturing steel-plastic composite pipe with zinc plated outside and polyethylene lined inside | |
| CN2524912Y (en) | External diameter positioning device for producing steel skelecton reinforced polyacrylic plastic composite tube | |
| CN104760261B (en) | A kind of preparation technology of PE super large calibers thick-wall tube | |
| CN105196514B (en) | A kind of extrusion molding mould of online biaxial orientation plastics heavy caliber pipe | |
| CN113002033B (en) | Compression-resistant winding pipe and production device and process thereof | |
| CN208576161U (en) | Foaming composite pipe material production line | |
| CN101444955A (en) | Extrusion cooling method of pipe production line | |
| CN1146482C (en) | Production process of composite aluminium-plastic pipe and its special pipe drawing machine | |
| CN207207071U (en) | Tube forming equipment extrusion die | |
| CN216658896U (en) | Density-reducing full-biodegradable film extrusion molding machine | |
| CN1342549A (en) | Technology for making seamless composite Al-plastic pipe | |
| CN205989497U (en) | A kind of quincunx plastic pipe molding extruder | |
| CN101891567A (en) | Production method for preparing detonating tube with low cost and high strength through three-layer co-extrusion and production line thereof | |
| CN213321561U (en) | PVC pipe draw gear | |
| CN211763312U (en) | Extrusion molding device for flame-retardant corrosion-resistant cable protection pipe | |
| CN210161569U (en) | Gas flow closed-loop control device for double-gas-assisted extrusion of plastic microtubes | |
| EP0149335A2 (en) | Apparatus and method for extruding polymer melts | |
| CN203622901U (en) | One-output-twelve rubber plastic extrusion die-head | |
| CN102601958A (en) | Process for rapidly extruding crosslinked polyethylene tube | |
| CN204869570U (en) | Online biaxial stretching plastic extrusion mould |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |