CN212451761U - Extrusion die head for melt-blown molten polymer - Google Patents
Extrusion die head for melt-blown molten polymer Download PDFInfo
- Publication number
- CN212451761U CN212451761U CN202020962211.4U CN202020962211U CN212451761U CN 212451761 U CN212451761 U CN 212451761U CN 202020962211 U CN202020962211 U CN 202020962211U CN 212451761 U CN212451761 U CN 212451761U
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- die holder
- melt
- air guide
- nozzle
- group
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Abstract
An extrusion die head for melt-blowing molten polymer comprises a die holder, a nozzle connected with the die holder and an air guide plate group arranged on the nozzle; the die holder is of a rectangular block structure, one side of the die holder is provided with a melt-blown molten polymer feed port and a plurality of die holder installation through holes, the top of the die holder is provided with a polymer detection interface, a first flow passage and a second flow passage which are communicated with each other are further arranged in the die holder, and the melt-blown molten polymer feed port and the polymer detection interface are communicated with the inside of the first flow passage of the die holder; the nozzle comprises a rectangular block part and a triangular prism part which are integrally formed, the triangular prism part is positioned in the middle of the rectangular block part, and a group of hot air heating pipelines are arranged in the nozzle. The utility model has the advantages that: the die head is convenient and quick to mount and dismount, the melt-blown cooling effect of melt-blown molten polymers is good, the spinning quality is high, turbulent flow is avoided, air is more uniform, the diameter of the discharged filaments is small, and the uniformity is higher.
Description
Technical Field
The utility model relates to a melt-blown apparatus field, concretely relates to extrusion die head for melt-blown molten polymer.
Background
The existing melt-blown die head is not easy to mount and dismount, and air turbulence is easy to occur in the cooling process of melt-blown molten polymer, so that the cooling of the discharged filaments is not uniform, and the spinning quality is influenced.
SUMMERY OF THE UTILITY MODEL
The object of the present invention is to provide an extrusion die for melt-blowing molten polymers which addresses the above-mentioned drawbacks.
The utility model comprises a die holder, a nozzle connected with the die holder and an air guide plate group arranged on the nozzle;
the die holder is of a rectangular block structure, one side of the die holder is provided with a melt-blown molten polymer feed port and a plurality of die holder installation through holes, the top of the die holder is provided with a polymer detection interface, a first flow passage and a second flow passage which are communicated with each other are further arranged in the die holder, and the melt-blown molten polymer feed port and the polymer detection interface are communicated with the inside of the first flow passage of the die holder;
the nozzle comprises a rectangular block part and a triangular prism part which are integrally formed, the triangular prism part is positioned in the middle of the rectangular block part, a group of hot air heating pipelines are arranged in the nozzle, nozzle mounting holes matched with the die holder mounting through holes are formed in one side of the nozzle, a melt-blown molten polymer accommodating cavity communicated with the second flow channel is formed in the rectangular block part, the melt-blown molten polymer accommodating cavity is communicated with a nozzle opening, and the outlet end of the nozzle opening is communicated with a group of spinneret holes formed in the top of the triangular prism part;
the air guide plate group consists of two air guide plates positioned at two sides of the triangular column part, one side of each air guide plate inclines and is matched with the side wall of the triangular column part, the part of the inclined surface of each air guide plate, which is close to the spinneret holes, is inwards sunken to form a cooling air guide groove, and a cooling air inlet pipeline and a group of cooling air feeding holes are also arranged in each air guide plate;
the area of the cooling air diversion trench on the inclined side surface of the air diversion plate is one fourth of the total area of the inclined side surface of the air diversion plate, a group of cooling air supply holes are communicated with the cooling air diversion trench, the exhaust end of the cooling air diversion trench is positioned on the outer side of a group of spinneret holes, and the included angle between the cooling air diversion trench and the group of spinneret holes is degree.
A plurality of mounting and fixing holes are formed in the air guide plate in a penetrating mode, and a plurality of air guide plate mounting holes matched with the mounting and fixing holes are formed in one side, close to the air guide plate group, of the nozzle.
The diameters of the spinneret orifices are all 0.15 mm.
The utility model has the advantages that: the die head is convenient and quick to mount and dismount, the melt-blown cooling effect of melt-blown molten polymers is good, the spinning quality is high, turbulent flow is avoided, air is more uniform, the diameter of the discharged filaments is small, and the uniformity is higher.
Description of the drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the vertical cross-section structure of the present invention.
Fig. 3 is an enlarged view of the structure at the cooling air guide groove.
Fig. 4 is a schematic structural view of the nozzle.
FIG. 5 is a schematic diagram of a melt blown molten polymer receiving chamber.
Fig. 6 is a schematic structural view of the die holder.
Fig. 7 is a schematic view of an air deflector.
Detailed Description
As shown in the attached drawings, the utility model comprises a die holder 1, a nozzle 2 connected with the die holder 1 and an air guide plate group arranged on the nozzle 2;
the die holder 1 is of a rectangular block structure, one side of the die holder 1 is provided with a melt-blown molten polymer feed port 4 and a plurality of die holder installation through holes 6, the top of the die holder 1 is provided with a polymer detection interface 5, a first flow channel 7 and a second flow channel 8 which are communicated with each other are also arranged in the die holder 1, and the melt-blown molten polymer feed port 4 and the polymer detection interface 5 are communicated with the inside of the first flow channel 7 of the die holder 1;
the nozzle 2 comprises a rectangular block part 11 and a triangular prism part 12 which are integrally formed, the triangular prism part 12 is positioned in the middle of the rectangular block part 11, a group of hot air heating pipelines 9 is arranged in the nozzle 2, nozzle mounting holes 10 matched with the die holder mounting through holes 6 are formed in one side of the nozzle 2, a melt-blown molten polymer accommodating cavity 13 communicated with the second flow channel 8 is formed in the rectangular block part 11, the melt-blown molten polymer accommodating cavity 13 is communicated with a nozzle opening 14, and the outlet end of the nozzle opening 14 is communicated with a group of spinneret holes 15 formed in the top of the triangular prism part 12;
the air guide plate group consists of two air guide plates 3 positioned at two sides of the triangular prism part 12, one side of each air guide plate 3 inclines and is matched with the side wall of the triangular prism part 12, the part of the inclined side surface of each air guide plate 3, which is close to the spinneret orifices 15, is inwards sunken to form a cooling air guide groove 16, and a cooling air inlet pipeline 17 and a cooling air feeding hole 18 are also arranged in each air guide plate 3;
the area of the cooling air guide groove 16 occupied by the surface of the inclined side of the air guide plate 3 is one fourth of the total area of the surface of the inclined side of the air guide plate 3, a group of cooling air supply holes 18 are communicated with the cooling air guide groove 16, the exhaust end of the cooling air guide groove 16 is positioned at the outer side of a group of spinneret holes 15, and the included angle between the cooling air guide groove 16 and the group of spinneret holes 15 is 60 degrees.
A plurality of mounting and fixing holes 20 are formed in the air guide plate 3 in a penetrating mode, and a plurality of air guide plate mounting holes 21 matched with the mounting and fixing holes 20 are formed in one side, close to the air guide plate group, of the nozzle 2.
The diameter of each spinneret orifice 15 is 0.15 mm.
The working principle is as follows: the melt-blown molten polymer enters the first flow channel 7 and the second flow channel 8 through the melt-blown molten polymer feed inlet 4, then flows into the melt-blown molten polymer accommodating cavity 13, is heated and insulated through a group of hot air heating pipelines 9, flows through the nozzle opening 14, and finally is ejected from a group of spinneret orifices 15; when the spinning jet is sprayed out, cooling air enters the cooling air diversion trench 16 through the cooling air inlet pipeline 17 and the group of cooling air supply holes 18 and directly flows out, so that air turbulence is avoided, and the sprayed spinning jet is cooled. The utility model has the advantages that: the die head is convenient and quick to mount and dismount, the melt-blown cooling effect of melt-blown molten polymers is good, the spinning quality is high, turbulent flow is avoided, air is more uniform, the diameter of the discharged filaments is small, and the uniformity is higher.
Claims (3)
1. An extrusion die head for melt-blown molten polymer is characterized by comprising a die holder (1), a nozzle (2) connected with the die holder (1) and an air guide plate group arranged on the nozzle (2);
the die holder (1) is of a rectangular block structure, one side of the die holder (1) is provided with a melt-blown molten polymer feed port (4) and a plurality of die holder installation through holes (6), the top of the die holder (1) is provided with a polymer detection interface (5), a first flow passage (7) and a second flow passage (8) which are communicated with each other are further arranged in the die holder (1), and the melt-blown molten polymer feed port (4) and the polymer detection interface (5) are communicated with the first flow passage (7) of the die holder (1);
the nozzle (2) comprises a rectangular block part (11) and a triangular prism part (12) which are integrally formed, the triangular prism part (12) is positioned in the middle of the rectangular block part (11), a group of hot air heating pipelines (9) is arranged in the nozzle (2), nozzle mounting holes (10) matched with the die holder mounting through holes (6) are formed in one side of the nozzle (2), a melt-blown molten polymer accommodating cavity (13) communicated with the second runner (8) is formed in the rectangular block part (11), the melt-blown molten polymer accommodating cavity (13) is communicated with a nozzle opening (14), and the outlet end of the nozzle opening (14) is communicated with a group of spinneret holes (15) formed in the top of the triangular prism part (12);
the air guide plate group consists of two air guide plates (3) positioned at two sides of the triangular prism part (12), one side of each air guide plate (3) inclines and is matched with the side wall of the triangular prism part (12), the part of the inclined side surface of each air guide plate (3) and close to one group of spinneret holes (15) is inwards sunken to form a cooling air guide groove (16), and a cooling air inlet pipeline (17) and one group of cooling air supply holes (18) are further arranged in each air guide plate (3);
the area of the cooling air guide groove (16) occupied by the surface of one inclined side of the air guide plate (3) is one fourth of the total area of the surface of one inclined side of the air guide plate (3), a group of cooling air feeding holes (18) is communicated with the cooling air guide groove (16), the exhaust end of the cooling air guide groove (16) is positioned on the outer side of a group of spinneret holes (15), and the included angle between the cooling air guide groove (16) and the group of spinneret holes (15) is 60 degrees.
2. An extrusion die for melt-blown molten polymer according to claim 1, wherein a plurality of mounting holes (20) are formed through the air deflector (3), and a plurality of air deflector mounting holes (21) matched with the plurality of mounting holes (20) are formed on one side of the nozzle (2) close to the air deflector group.
3. An extrusion die for melt blowing molten polymers according to claim 1, characterised in that the orifices (15) of a set each have a pore size of 0.15 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020962211.4U CN212451761U (en) | 2020-06-01 | 2020-06-01 | Extrusion die head for melt-blown molten polymer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020962211.4U CN212451761U (en) | 2020-06-01 | 2020-06-01 | Extrusion die head for melt-blown molten polymer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212451761U true CN212451761U (en) | 2021-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020962211.4U Expired - Fee Related CN212451761U (en) | 2020-06-01 | 2020-06-01 | Extrusion die head for melt-blown molten polymer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212451761U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113373594A (en) * | 2021-07-01 | 2021-09-10 | 佛山市启新模具有限公司 | Melt-blown fabric mould of multi-row hole shower nozzle |
-
2020
- 2020-06-01 CN CN202020962211.4U patent/CN212451761U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113373594A (en) * | 2021-07-01 | 2021-09-10 | 佛山市启新模具有限公司 | Melt-blown fabric mould of multi-row hole shower nozzle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210202 |