CN204401153U - A kind of production asphalt felt meltblown beam - Google Patents
A kind of production asphalt felt meltblown beam Download PDFInfo
- Publication number
- CN204401153U CN204401153U CN201420853173.3U CN201420853173U CN204401153U CN 204401153 U CN204401153 U CN 204401153U CN 201420853173 U CN201420853173 U CN 201420853173U CN 204401153 U CN204401153 U CN 204401153U
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- China
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- slit
- mould steel
- distribution plate
- melt
- semicircular arc
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Abstract
The utility model belongs to spinneret die technical field, is specifically related to a kind of production asphalt felt meltblown beam.The utility model mainly solves traditional ropy problem of chevron shaped die head properties of product.The technical solution of the utility model is: a kind of production asphalt felt meltblown beam, comprise two blocks of mould steel plates, every block mould steel plate is arranged manifold and the inlet duct of a semicircle, mould steel plate concaves and forms semicircular arc slit, multilayer slit area distribution plate is set in semicircular arc slit, mould steel plate concave 0.2 ~ 3mm formed for pitch flow region melt flow out outlet, two blocks of mould steel plates are fixed by holding screw, wherein: described multilayer slit area distribution plate flows out outlet from inlet duct to melt, narrow from the width, many by few change, between the distribution plate of multilayer slit area, gap increases progressively successively from top to bottom in semicircular arc slit, slit area distribution plate height equals slit width.
Description
Technical field
The utility model belongs to spinneret die technical field, is specifically related to a kind of production asphalt felt meltblown beam.
Background technology
The spinning difficulty of pitch is large more than the spinning difficulty of high polymer, due to pitch viscous flow activation energy than thread-forming polyester and polyacrylic viscous flow activation energy much larger, belong to the high responsive melt of temperature.Therefore pitch has comparatively hypersensitivity to temperature, thus controls the stability that melt thermally equivalent determines spinning.The distribution of pitch melt-blown felt equipment die head runner is different from other melts, and main cause is that the former belongs to high-viscosity melt by melt, and the uniformity difficulty that melt distributes in producing is larger.And in melt-blowing equipment, the design rationality that melt distributes runner will have a strong impact on the performance of product, particularly its horizontal homogeneity and the melt thermally equivalent in die head.The key factor of melt-blown production properties of product instability, the segmental defect of its equipment itself is depended primarily on except melt-blown process parameter, traditional chevron shaped die head distributes long-pending the diminishing suddenly of cross section of fluid channel between manifold and slit area in runner, can cause flow fluid in VELOCITY DISTRIBUTION great changes will take place, thus fluid produces very large Pressure Drop, and then affect the performance quality of product.
Utility model content
Long-pending the diminishing suddenly of cross section of fluid channel between manifold and slit area is there is in the utility model mainly for traditional chevron shaped die head, cause flow fluid in VELOCITY DISTRIBUTION great changes will take place, thus fluid produces very large Pressure Drop, and then affect the problem of properties of product quality, provide a kind of and produce asphalt felt meltblown beam.
The utility model is the technical scheme taked that solves the problem:
A kind of production asphalt felt meltblown beam, comprise two blocks of mould steel plates, every block mould steel plate is arranged manifold and the inlet duct of a semicircle, the mould steel plate 0.1 ~ 5mm that concaves is formed for the semicircular arc slit of pitch flow region, multilayer slit area distribution plate is set in semicircular arc slit, mould steel plate concave 0.2 ~ 3mm formed for pitch flow region melt flow out outlet, two blocks of mould steel plates are fixed by holding screw, wherein: described multilayer slit area distribution plate flows out outlet from inlet duct to melt, narrow from the width, many by few change, between the distribution plate of multilayer slit area, gap increases progressively successively from top to bottom in semicircular arc slit, slit area distribution plate height equals slit width.
Further, the arc diameter of the utility model semicircular arc slit is 1:1.2 ~ 1:3 with mould steel plate length ratio.
The utility model adopts technique scheme, after material enters die head manifold, and then enter in herringbone slit, by the gap between the multilayer slit area distribution plate of semicircular arc slit area, carry out repeatedly flow guide distribution, finally make melt thermally equivalent in slit, simultaneously by melt uniform distribution by flowing into spinning pack in equilibrium area, or the flow such as material enter spinning pack.Compared with prior art, the utility model has following beneficial effect: 1, ensureing that melt to melt in chamber at die head can thermally equivalent, uniform distribution on whole fabric width direction simultaneously, that is melt is in the horizontal same full width orientation of die head exit, melt flow uniformity, namely the flow such as melt flows out; 2, to flow through the Pressure Drop of whole die head runner suitable for melt, and the time of staying of melt in whole runner is short as far as possible, and melt material first in first out, occur without stagnant material phenomenon.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is sectional view of the present utility model.
Detailed description of the invention
Embodiment 1
As depicted in figs. 1 and 2, a kind of production asphalt felt meltblown beam, comprise two blocks of mould steel plates 7, every block mould steel plate 7 is arranged manifold 2 and the inlet duct 1 of a semicircle, the mould steel plate 7 0.1 ~ 5mm that concaves is formed for the semicircular arc slit 3 of pitch flow region, multilayer slit area distribution plate 4 is set in semicircular arc slit 3, mould steel plate 7 concave 0.2 ~ 3mm formed for pitch flow region melt flow out outlet 6, two blocks of mould steel plates 7 are fixed by holding screw 5, wherein: described multilayer slit area distribution plate 4 flows out outlet 6 from inlet duct 1 to melt, narrow from the width, many by few change, between multilayer slit area distribution plate 4, gap increases progressively successively from top to bottom in semicircular arc slit 3, slit area distribution plate 4 highly equals slit width, the arc diameter of semicircular arc slit 3 is 1:1.2 ~ 1:3 with mould steel plate 7 length ratio.
The course of work of the utility model device is as follows:
Operationally, melt material enters inlet duct 1 to this melt-blown herringbone die head, slowly flows in manifold 2 and slit 3, carries out repeatedly flow guide distribution by slit area distribution plate 4; Because melt enters in slit space, carry out repeatedly water conservancy diversion, form even fabric width direction thermally equivalent melt by distribution plate slit and flow out from outflow outlet 6.
Raw material is pitch, and melt temperature is 250--380 DEG C, and melt-blowing equipment and technological parameter are: orifice diameter 0.3mm, and melt-blown melt temperature is 350 DEG C, and air themperature is 400 DEG C, prepares the uneven rate of the more general meltblown fibers of asphalt felt reduce 10% through melt-blown process.
Claims (2)
1. produce asphalt felt meltblown beam for one kind, comprise two pieces of mould steel plates (7), every block mould steel plate (7) is arranged manifold (2) and the inlet duct (1) of a semicircle, mould steel plate (7) 0.1 ~ 5mm that concaves is formed for the semicircular arc slit (3) of pitch flow region, multilayer slit area distribution plate (4) is set in semicircular arc slit (3), mould steel plate (7) concave 0.2 ~ 3mm formed for pitch flow region melt flow out outlet (6), two pieces of mould steel plates (7) are fixed by holding screw (5), it is characterized in that: described multilayer slit area distribution plate (4) flows out outlet (6) from inlet duct (1) to melt, narrow from the width, many by few change, between multilayer slit area distribution plate (4), gap increases progressively successively from top to bottom in semicircular arc slit (3), slit area distribution plate (4) highly equals slit width.
2. one according to claim 1 produces asphalt felt meltblown beam, it is characterized in that: the arc diameter of semicircular arc slit (3) and mould steel plate (7) length are than being 1:1.2 ~ 1:3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420853173.3U CN204401153U (en) | 2014-12-29 | 2014-12-29 | A kind of production asphalt felt meltblown beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420853173.3U CN204401153U (en) | 2014-12-29 | 2014-12-29 | A kind of production asphalt felt meltblown beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204401153U true CN204401153U (en) | 2015-06-17 |
Family
ID=53425030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420853173.3U Expired - Fee Related CN204401153U (en) | 2014-12-29 | 2014-12-29 | A kind of production asphalt felt meltblown beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204401153U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105908277A (en) * | 2016-07-05 | 2016-08-31 | 无锡谛诺伟业科技有限公司 | Spinning process and die head of chinlon 66 monofilament of high-strength and high-precision industry |
| CN114850422A (en) * | 2022-05-16 | 2022-08-05 | 北京化工大学 | Method for preparing metal micro-nano fibers through centrifugal melt electrostatic spinning |
-
2014
- 2014-12-29 CN CN201420853173.3U patent/CN204401153U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105908277A (en) * | 2016-07-05 | 2016-08-31 | 无锡谛诺伟业科技有限公司 | Spinning process and die head of chinlon 66 monofilament of high-strength and high-precision industry |
| CN114850422A (en) * | 2022-05-16 | 2022-08-05 | 北京化工大学 | Method for preparing metal micro-nano fibers through centrifugal melt electrostatic spinning |
| CN114850422B (en) * | 2022-05-16 | 2023-02-28 | 北京化工大学 | Method for preparing metal micro-nano fibers through centrifugal melt electrostatic spinning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Melt-blowing die head for producing asphalt felt Effective date of registration: 20161104 Granted publication date: 20150617 Pledgee: Ma Jiaolu Pledgor: Sichuan Chuangyue Carbon Material Co., Ltd. Registration number: 2016510000060 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20181229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |