CN2110527U - Rotary and floating drawbench for internal screw tube - Google Patents
Rotary and floating drawbench for internal screw tube Download PDFInfo
- Publication number
- CN2110527U CN2110527U CN 92210100 CN92210100U CN2110527U CN 2110527 U CN2110527 U CN 2110527U CN 92210100 CN92210100 CN 92210100 CN 92210100 U CN92210100 U CN 92210100U CN 2110527 U CN2110527 U CN 2110527U
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- China
- Prior art keywords
- die
- floating
- core print
- rotary
- revolving
- Prior art date
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- Granted
Links
- 238000005096 rolling process Methods 0.000 claims abstract description 14
- 230000000295 complement effect Effects 0.000 claims description 4
- 239000011438 cord wood Substances 0.000 claims description 4
- 238000009987 spinning Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 8
- 238000004513 sizing Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000000725 suspension Substances 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000009776 industrial production Methods 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- UWCBNAVPISMFJZ-GFCCVEGCSA-N 2-[2-[(2r)-3-(tert-butylamino)-2-hydroxypropoxy]phenoxy]-n-methylacetamide Chemical compound CNC(=O)COC1=CC=CC=C1OC[C@H](O)CNC(C)(C)C UWCBNAVPISMFJZ-GFCCVEGCSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
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- Metal Extraction Processes (AREA)
Abstract
The utility model relates to the metal tube processing field, more specifically to a device which draws on a mandrel and forms spiral guide grooves on a pipe inner wall through rolling with moulds, namely a rotary and floating drawing machine for internal screw tubes. The utility model is mainly characterized in that the device skillfully integrates three deformation processes of floating drawing, rotary rolling and hollow drawing sizing with the suspension method, so as to get compact structure, shorten a deformation zone, reduce the loss of head materials and continuously draw internal screw coilers. Besides, modular composite moulds bring simple mould replacement which is favorable for industrial production.
Description
The utility model relates to the manufacture field of metal pipe material, has specifically just provided a kind ofly to form the device of helical guide slot in drawing on the mandrel and by the mould roll extrusion on inside pipe wall, and promptly riffled tube revolves floating draw-off gear.
Mostly heat exchange copper tube in the past heat exchanger of air condition is the minute surface pipe, and the pipe of this form has two shortcomings: the one, and area of dissipation is little, and another is that the interior liquid of pipe moves in the mode of laminar flow, can not carry out sufficient heat exchange.Begun to adopt a kind of update type product one inside spin ripple heat radiation copper pipe recently, this product inwall has N triangular hill on one week, to become the line distribution in the shape of a spiral of α angle with axis, the heat radiation copper pipe of this form has increased heat exchange area under the certain situation of size, and the helical raised of inwall has upset the flow regime of liquid in pipe, mode with turbulent flow is moved, thereby can carry out heat exchange more fully.Usually the heat exchange effect of riffled tube improves nearly one times than same size minute surface pipe, thus can save the non-ferrous metal copper pipe near half, saves energy consumption improves the serviceability of air-conditioner, volume-diminished 1/3.Produce riffled tube at present and adopt the rotation compression method usually, the advantage of this kind mode of texturing is that internal thread easily is full of, and deformation force is little, core print is not easy to wear, and is not strict to base pipe dimensional requirement.In in day patent of the present disclosure, entire processing apparatus is by floating core head, with groove core print and be fixed on the mould that moves about on the certain position of stretching-machine respectively separately, empty drawing-die and revolving-rolling device five parts are formed, floating core head is connected with bar with the with groove core print, be characterized in the drawing deformation that floats, spinning internal thread drawing deformation and sizing sky draw the distortion three separately to carry out.Its shortcoming is that more mold exchange is more cumbersome, and because the total deformation zone is long, the loss of head material is big, is difficult to be implemented on the dish stretching-machine of garden and produces riffled tube, and is unfavorable to big production.
The utility model is by the withdrawing pattern seat, rotary tube and assembling die and combination core print constitute, rotary tube links by bearing and withdrawing pattern seat, assembling die can be fixed on the rotary tube, the combination core print places the inside of base pipe, it is characterized in that: assembling die is made of the mould that moves about, empty drawing-die and three cordwood assemblies of revolving-rolling device, closely puts into same combination die sleeve, and the mould that moves about links to each other with die sleeve by radial-thrust bearing respectively with empty drawing-die.The revolving-rolling device is fixed by key and die sleeve.Combination core print and assembling die are complementary, and are made up of floating core head and with groove core print two parts, and, revolving-rolling device directly continuous by tourelle can be planetary, column-style also can be the spinning roller formula.Radial-thrust bearing in the assembling die makes move about mould and empty drawing-die be in suspended state, and when the revolving-rolling device rotated with rotary tube one superhigh speed along with die sleeve, move about mould and room mould movably also can be motionless.This suspended state has three big benefits:
1, can realize floating drawing, revolving-rolling, sky draws that sizing is Trinitarian to revolve floating drawing combination die, makes equipment compact, and total deformed region shortens, thereby reduces the loss of head material, and makes that producing the internal thread coil pipe on the dish stretching-machine of garden becomes possibility;
What 2, suspended pattern can realizable force self regulates;
3,, shape in the time of with realization internal and external screw ripple because the residing suspended state of empty drawing-die can be left groove thereon.
Tourelle in the combination core print makes the with groove core print be in the state that freely rotates, and accompanying drawing 2 has provided the stress of combination core print, in revolving floating drawing deformation, must satisfy following equilibrium condition:
F
f＋μ（N
W＋N
SCosβ）＝N
sSinβ
In the formula: F
f-in the revolving-rolling distortion, total axial force that buckle groove core print is suffered.
μ-coefficient of friction.
Normal pressure on the cylinder of the little garden of Nw-core print.
Normal pressure on the Ns-core print awl cylinder.
β-core print awl cylinder half-angle.
For this reason, as long as in drawing process, adjust every experimental parameters such as V, N, R1, R2, α, β, μ, can produce qualified product.In addition, this cordwood combination die of the utility model and building block system combination core print as long as change building block by designing requirement, can be realized the production of different size riffled tube, thereby simplify the replacing process of mould.Below in conjunction with accompanying drawing in detail one embodiment is described in detail.
Accompanying drawing 1 revolves floating draw-off gear for a kind of riffled tube.
Among the figure: 1, base pipe; 2, unsteady core print; 3, floated trip mould; 4, with groove core print; 5, tourelle; 6, radial-thrust bearing; 7, rotary tube; 8, ball; 9, rotation die holder; 10, key; 11, floated empty drawing-die; 12, withdrawing pattern seat; 13, riffled tube; 14, combination die sleeve.
Embodiment:
As shown in drawings, the trip mould (3) that the suspends empty drawing-die (11) that suspends is packed into by radial-thrust bearing (6) and is made up in the die sleeve (14), when die sleeve and the rotation of rotary tube (7) one superhigh speeds, trip mould and empty drawing-die can keep motionless, planetary revolving-rolling device is made up of ball (8) rotation die holder (9), is connected with die sleeve (14) with key (10).The combination core print is put into pipe (1) inside, its floating core head part is made of big or small garden post and awl post, its face angle is complementary with the modular angle of the trip mould (3) that suspends, large head external diameter is slightly smaller than base pipe (1) internal diameter, small head external diameter and this die orifice internal diameter are complementary, to realize the support positioning action of work in-process to groove core print (4) part.The with groove core print is connected with floating core head by tourelle (5), and is free rotary state.Tourelle can be one group of ball.In the work, ball (8) is revolution and spinning motion at base pipe (1) outer surface, makes inside pipe wall be processed into the inside spin ripple from the pressurization of the interior outside together with groove core print (4), forms riffled tube (13) through empty drawing-die (11) sizing again.
When selecting the assembling die size for use:
Trip mould internal diameter (mm) φ 11.2
Trip mould half-angle (degree) 13 °
Ball diameter (mm) φ 10.32
Ball quantity (individual) 6
Internal orifice dimension (mm) φ 10.40 rolls spin
Empty drawing-die internal diameter (mm) φ 9.52
Combination floating core head size:
Large head external diameter (mm) φ 11.6
Small head external diameter (mm) φ 10.2
β ° of (degree) 11 ° of conical surface half-angle
Groove dimensions: the thick 0.41mm of wave base, ripple height 0.15mm, pitch angle alpha will 25 degree, the ripple head is counted N:65 and drift angle r90 degree.N=3000 rev/min of adjustment garden tube revolution is 2R to external diameter.13 millimeters of φ, the T2 oxygen-free copper of wall thickness t=0.5 millimeter, the base pipe of Tup phosphorized copper has carried out drawing respectively, and drawing speed reaches more than 30 meters/minute.The copper pipe size that obtains:
External diameter OD(mm): 0.52
Inner diameter, ID (mm): 8.54
Average wall thickness (mm): 0.41
Wave base thick (mm): 0.34
The high H(mm of ripple): 0.15
Angle of rifling α degree: 25
The ripple head is counted N:65
Drift angle r(degree): 90
Conform to the demand of air-condition heat exchanger copper pipe fully, and smooth outer surface, inner thread is full of.
In sum, the utility model makes unsteady drawing dexterously with suspension method, revolving-rolling and sky draw three deformation processes of sizing integrated, thereby make compact conformation, deformed area shorten greatly, simultaneously can realize continuous drawing internal thread coil pipe, cordwood in addition combination die and building block system combination core print makes that more mold exchange is easy, is beneficial to big production.
Claims (3)
1, a kind of riffled tube that is made of withdrawing pattern seat, rotary tube and assembling die, combination core print revolves floating draw-off gear, rotary tube links by bearing and withdrawing pattern seat, assembling die can be fixed on the rotary tube, and the combination core print places base pipe inside, it is characterized in that:
(1) assembling die is made of the mould that moves about, empty drawing-die and three cordwood chunks of revolving-rolling device, closely pack in the same combination die sleeve, the mould that moves about links to each other with die sleeve by radial-thrust bearing respectively with empty drawing-die, and the revolving-rolling device is fixed by key and die sleeve;
(2), combination core print and assembling die be complementary, and is made up of floating core head and with groove core print two parts, and be directly continuous by tourelle.
2, revolve floating draw-off gear by claim 1 is described, it is characterized in that: described revolving-rolling device can be planetary, column-style or the spinning roller formula.
3, describedly revolve floating draw-off gear by claim 1,2, it is characterized in that: described tourelle can be one group of ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92210100 CN2110527U (en) | 1992-01-18 | 1992-01-18 | Rotary and floating drawbench for internal screw tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92210100 CN2110527U (en) | 1992-01-18 | 1992-01-18 | Rotary and floating drawbench for internal screw tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2110527U true CN2110527U (en) | 1992-07-22 |
Family
ID=4955255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92210100 Granted CN2110527U (en) | 1992-01-18 | 1992-01-18 | Rotary and floating drawbench for internal screw tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2110527U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366353C (en) * | 2004-11-26 | 2008-02-06 | 罗宁 | Reciprocating steel pipe drawer |
| CN100435996C (en) * | 2006-12-15 | 2008-11-26 | 华南理工大学 | Micro channel making equipment and process |
| CN102172812A (en) * | 2010-12-31 | 2011-09-07 | 马志强 | Hollow aluminium division bar continuous moulding method |
| CN102218453A (en) * | 2010-04-16 | 2011-10-19 | 江苏兴荣高新科技股份有限公司 | Drawing method and drawing machine for internal-threaded pipe |
| CN102284527A (en) * | 2011-07-27 | 2011-12-21 | 潍坊潍尔达钢管有限公司 | Cold-drawing machine for seamless steel pipe |
| CN102527755A (en) * | 2011-11-27 | 2012-07-04 | 胡顺珍 | Tube drawing device of spherical core head compound die |
| CN106269977A (en) * | 2016-08-07 | 2017-01-04 | 嘉兴市杰希希管道工程有限公司 | A kind of small-bore stainless steel tube drawing production process |
| CN107716818A (en) * | 2017-11-08 | 2018-02-23 | 铜陵市宏达家电有限责任公司 | A kind of internal thread forming machine pinch roller |
-
1992
- 1992-01-18 CN CN 92210100 patent/CN2110527U/en active Granted
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366353C (en) * | 2004-11-26 | 2008-02-06 | 罗宁 | Reciprocating steel pipe drawer |
| CN100435996C (en) * | 2006-12-15 | 2008-11-26 | 华南理工大学 | Micro channel making equipment and process |
| CN102218453A (en) * | 2010-04-16 | 2011-10-19 | 江苏兴荣高新科技股份有限公司 | Drawing method and drawing machine for internal-threaded pipe |
| CN102218453B (en) * | 2010-04-16 | 2013-09-04 | 江苏兴荣高新科技股份有限公司 | Drawing machine for internal-threaded pipe |
| CN102172812A (en) * | 2010-12-31 | 2011-09-07 | 马志强 | Hollow aluminium division bar continuous moulding method |
| CN102172812B (en) * | 2010-12-31 | 2012-11-07 | 马志强 | Hollow aluminium division bar continuous moulding method |
| CN102284527A (en) * | 2011-07-27 | 2011-12-21 | 潍坊潍尔达钢管有限公司 | Cold-drawing machine for seamless steel pipe |
| CN102527755A (en) * | 2011-11-27 | 2012-07-04 | 胡顺珍 | Tube drawing device of spherical core head compound die |
| CN106269977A (en) * | 2016-08-07 | 2017-01-04 | 嘉兴市杰希希管道工程有限公司 | A kind of small-bore stainless steel tube drawing production process |
| CN107716818A (en) * | 2017-11-08 | 2018-02-23 | 铜陵市宏达家电有限责任公司 | A kind of internal thread forming machine pinch roller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |