CN111593423A - Equal-flow-rate melt-blowing die head device - Google Patents
Equal-flow-rate melt-blowing die head device Download PDFInfo
- Publication number
- CN111593423A CN111593423A CN202010523999.3A CN202010523999A CN111593423A CN 111593423 A CN111593423 A CN 111593423A CN 202010523999 A CN202010523999 A CN 202010523999A CN 111593423 A CN111593423 A CN 111593423A
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- China
- Prior art keywords
- plate
- air inlet
- main body
- spinneret
- holes
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- 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.)
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Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/098—Melt spinning methods with simultaneous stretching
- D01D5/0985—Melt spinning methods with simultaneous stretching by means of a flowing gas (e.g. melt-blowing)
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/02—Spinnerettes
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The invention discloses a melt-blown die head device with equal flow rate, which comprises: two main body boards, a distribution board, a spinneret plate, two air inlet boards and a piano board which are symmetrical and tightly attached. The clothes hanger type flow channel is arranged on the binding face of the two body main boards from the top downwards, the distributing plate is arranged at the bottom of the two body main boards, the spinneret plate is arranged at the bottom of the distributing plate, the two air inlet plates are respectively arranged on the side walls of the two body main boards, and the organ plate is arranged at the bottom of the spinneret plate. The invention has the beneficial effects that: through the arrangement of the coat hanger type flow channel and the uniform distribution of the plurality of discharge holes at the bottom of the splitter box of the distribution plate, the molten material fed into the V-shaped discharge groove on the spinneret plate is more uniformly and stably distributed. And through set up fairing groove and V type air-out groove on the wind instrument board for high-speed hot gas flow can be more even and stable enter into the V type air-out groove in, thereby make the melt that comes out from the spinneret orifice of V type blown down tank evenly stretched and solidify.
Description
Technical Field
The invention relates to the technical field of melt-blown fabric manufacturing, in particular to a melt-blown die head device with equal flow rate.
Background
The main raw material of the melt-blown fabric is polypropylene (PP), and the melt-blown fabric is superfine electrostatic fiber fabric with the fiber diameter of about 2 microns. The network is also called medical mask melt-blown cloth, melt-blown non-woven cloth and mask cloth. The melt-blown fabric is one of non-woven fabrics, and the non-woven fabrics have a plurality of processing technologies, and the melt-blown method is the most common processing technology in the plurality of technologies. The melt blowing method is a spinning method in which a melt of a polymer just extruded is rapidly subjected to high-speed stretching, solidification and molding by means of a high-speed hot gas stream. The factors influencing the melt-blown cloth are many, wherein the most central point is the quality of the melt-blown die head, and the uniformity and the stability of the discharge of the melt-blown die head are the heaviest indexes influencing the quality of the melt-blown die head and have a decisive effect on the quality of the melt-blown cloth. The discharge uniformity and stability of the existing melt-blowing die head are not ideal.
Disclosure of Invention
Aiming at the problems in the prior art, the invention mainly aims to provide a constant-flow-rate melt-blowing die head device, aiming at solving the problem that the discharging uniformity and stability of the existing melt-blowing die head are not ideal enough.
In order to achieve the above object, the present invention provides a constant flow rate meltblown die apparatus, comprising: two main body boards, a distribution board, a spinneret plate, two air inlet boards and a piano board which are symmetrical and tightly attached.
The binding surfaces of the two main body main boards are provided with a clothes rack type flow channel used for feeding from the top to the bottom, the cross section of the clothes rack type flow channel is large at the top, small at the middle and large at the bottom.
The distribution plate is arranged at the bottom of the main plates of the two bodies. The top of the distributing plate is provided with a splitter box which is communicated with the bottom of the coat hanger type flow channel, and the bottom of the splitter box is uniformly provided with a plurality of discharging holes penetrating through the distributing plate.
The spinneret plate is arranged at the bottom of the distribution plate. The spinneret plate is provided with a V-shaped discharge chute, the top of the V-shaped discharge chute is communicated with a plurality of discharge holes, and a plurality of spinneret holes are uniformly distributed at the bottom of the V-shaped discharge chute.
The two air inlet plates are arranged on the side walls of the main body boards along the length directions of the two main body boards respectively. A plurality of air inlet holes are uniformly distributed on the air inlet plate, and air inlet channels which are communicated with the air inlet holes in a one-to-one correspondence mode are arranged on the main body main plate.
The piano plate is arranged at the bottom of the spinneret plate. The top of the piano plate is provided with a rectifying groove communicated with the air inlet channel, the bottom of the rectifying groove is provided with a V-shaped air outlet groove, and the V-shaped air outlet groove is arranged under the V-shaped discharge groove.
Preferably, a plurality of containing holes are uniformly distributed in the main body board along the vertical direction, and heating tubes are arranged in the containing holes.
Preferably, a filter screen is arranged in the splitter box.
Preferably, the aperture of the discharge hole is 3 mm.
Preferably, the orifice diameter is 0.2mm or 0.25 mm.
Preferably, a plurality of rows of speed reduction upright columns are densely distributed in the rectifying groove, and the speed reduction upright columns in each row are arranged in a staggered mode.
Compared with the prior art, the invention has the beneficial effects that: the coat hanger type flow channel is arranged on the binding face of the two main body main boards, the cross section of the coat hanger type flow channel is large in top, small in middle and large in bottom, and the melt is distributed more uniformly and stably in the V-shaped discharge groove on the spinneret plate through the discharge holes uniformly distributed at the bottom of the distribution groove of the distribution plate. And through set up fairing groove and V type air-out groove on the wind instrument board for high-speed hot gas stream that enters into the fairing groove through a plurality of fresh air inlets and inlet air channel can be more even and stable enters into V type air-out inslot, after even and stable high-speed hot gas stream passes through V type air-out groove air-out again, can make the melt that comes out from the spinneret orifice of V type blown out groove evenly stretched and solidification.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of an overall assembly structure according to an embodiment of the present invention;
FIG. 2 is a cross-sectional block diagram of one embodiment of the present invention;
FIG. 3 is a diagram illustrating a structure of a main board of the main body according to an embodiment of the present invention;
FIG. 4 is a diagram illustrating a distribution plate according to an embodiment of the present invention;
FIG. 5 is a block diagram of a wedge plate in an embodiment of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5 at A;
the objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The invention provides a melt-blowing die head device with equal flow rate.
Referring to fig. 1 to 3, fig. 1 is a schematic view of an overall assembly structure according to an embodiment of the present invention, fig. 2 is a structural view of a cross section according to an embodiment of the present invention, and fig. 3 is a structural view of a main body board according to an embodiment of the present invention.
In an embodiment of the present invention, as shown in fig. 1-3, the meltblowing die apparatus of the same flow rate comprises: two symmetrical and closely attached main body boards 100, a distribution board 200, a spinneret 300, two air inlet boards 400 and an organ board 500.
The binding surfaces of the two main body boards 100 are provided with a coat hanger type flow channel 110 for feeding from the top to the bottom, and the cross section of the coat hanger type flow channel 110 is large at the top, small at the middle and large at the bottom. After the melt enters the coat hanger type runner 110, the flow of the coat hanger type runner 110 is longer along the length direction of the main body main board 100, and the space of the middle position of the coat hanger type runner 110 is smaller, so that the melt can be decelerated and spread along the runner, and the melt flowing out from the bottom of the coat hanger type runner 110 is uniform and stable.
Specifically, in the present embodiment, in order to ensure the fluidity of the molten material in the main body 100, a plurality of accommodating holes 120 are uniformly distributed in the main body 100 along the vertical direction. When in use, the accommodating hole 120 is internally provided with a heating tube.
The distribution plate 200 is disposed at the bottom of the two main bodies 100. As shown in fig. 4, a diversion channel 210 is disposed at the top of the distribution plate 200, the diversion channel 210 is communicated with the bottom of the coat hanger type flow channel 110, a plurality of discharge holes 211 penetrating through the distribution plate 200 are uniformly distributed at the bottom of the diversion channel 210 along the length direction, and the melt flows out from the bottom of the coat hanger type flow channel 110 and then flows into the diversion channel 210, and is further uniformly distributed and discharged through the plurality of discharge holes 211 uniformly distributed at the bottom of the diversion channel 210.
Specifically, in the present embodiment, in order to prevent impurities in the molten material from blocking the discharge hole 211 at the bottom of the dividing channel 210, a filter (not shown) is disposed in the dividing channel 210.
The spinning plate 300 is disposed at the bottom of the distribution plate 200. The spinneret plate 300 is provided with a V-shaped discharge chute 310, the top of the V-shaped discharge chute 310 is communicated with a plurality of discharge holes 211, and a plurality of spinneret holes 311 are uniformly distributed at the bottom of the V-shaped discharge chute 310 along the length direction thereof. The molten material in the branch chute 210 flows into the V-shaped discharge chute 310 through the discharge holes 211 uniformly, and is discharged out from the several spinneret holes 311 uniformly distributed along the length direction of the bottom of the V-shaped discharge chute 310.
The two air inlet plates 400 are respectively disposed on the sidewalls of the main body panels 100 along the length direction of the two main body panels 100. A plurality of air inlet holes 410 are uniformly distributed on the air inlet plate 400, the air inlet holes 410 are connected with an external air inlet system through pipelines, and the main body main plate 100 is provided with air inlet channels 130 which are correspondingly communicated with the air inlet holes 410 one by one. The external air inlet system injects high-speed hot air into the air inlet channel 130 through the air inlet holes 410.
The piano plate 500 is provided at the bottom of the spinning plate 300. The top of the piano plate 500 is provided with a rectifying groove 510 communicated with the air inlet channel 130, the bottom of the rectifying groove 510 is provided with a V-shaped air outlet groove, and the V-shaped air outlet groove is arranged right below the V-shaped discharge groove 310.
Specifically, in this embodiment, in order to facilitate processing the V-shaped air outlet groove of the piano plate 500, the organ plate 500 is formed by splicing two wedge-shaped plates 520 in a gap manner, and the gap between the two wedge-shaped plates 520 is the V-shaped air outlet groove of the piano plate 500.
High-speed hot air flows through the air inlet channels 130 and is sprayed into the gusset plate 500, and because the air inlet channels 130 are arranged at intervals, the high-speed hot air flow just entering the gusset plate 500 is unstable. By arranging the rectifying grooves 510 in the organ plate 500, unstable high-speed hot air flows from the air inlet channels 130 can be fully rectified together to form relatively stable high-speed hot air flows, and then the air flows are ejected through the V-shaped air outlet grooves.
The melt material uniformly sprayed from the plurality of orifices 311 at the bottom of the V-shaped discharge slot 310 of the spinneret 300 is rapidly stretched and solidified by the stable high-speed hot air flow sprayed from the V-shaped discharge slot, thereby manufacturing a high-quality melt-blown fabric.
Specifically, in the present embodiment, in order to further improve the rectification effect of the rectification trough 510, as shown in fig. 5, a plurality of rows of deceleration columns 512 are densely distributed in the rectification trough 510, and each row of deceleration columns 512 is arranged in a staggered manner. In order to avoid the excessive loss of the flow velocity of the high-speed hot air flow by the pillars 512, as shown in fig. 6, the windward side of each pillar 512 is configured as a circular arc.
Preferably, in the present embodiment, the aperture of the discharging hole 211 is 3 mm.
Preferably, in this embodiment, the diameter of the orifice 311 is 0.2 mm.
It should be noted that in other embodiments of this embodiment, the aperture of the spinneret hole 311 may also be set to 0.25mm as needed.
Compared with the prior art, the invention has the beneficial effects that: the coat hanger type runner 110 is arranged on the binding face of the two main body main boards 100, the cross section of the coat hanger type runner 110 is large in top, small in middle and large in bottom, and a plurality of discharge holes 211 are uniformly distributed at the bottom of the splitter 210 of the distribution plate 200, so that molten materials fed into the V-shaped discharge groove 310 on the spinneret plate 300 are distributed more uniformly and stably. And through setting up fairing groove 510 and V type air-out slot on organ board 500, make the high-speed hot gas stream that enters into fairing groove 510 through a plurality of fresh air inlets 410 and inlet air channel 130 can be more even and stable enter into V type air-out slot, after even and stable high-speed hot gas stream is through V type air-out slot air-out again, can make the melt that comes out from spinneret orifice 311 of V type blown out slot 310 stretched evenly and solidify.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. A constant flow rate meltblowing die apparatus comprising:
two symmetrical and closely attached main body boards; a clothes hanger type flow channel for feeding is arranged on the binding surface of the two main body boards from the top to the bottom, and the cross section of the clothes hanger type flow channel is large at the top, small at the middle and large at the bottom;
a distribution plate; the distribution plate is arranged at the bottoms of the two main body boards; the top of the distribution plate is provided with a diversion channel which is communicated with the bottom of the coat hanger type flow channel, and the bottom of the diversion channel is uniformly provided with a plurality of discharge holes which penetrate through the distribution plate;
a spinneret plate; the spinneret plate is arranged at the bottom of the distribution plate; a V-shaped discharge groove is formed in the spinneret plate, the top of the V-shaped discharge groove is communicated with the discharge holes, and a plurality of spinneret holes are uniformly distributed at the bottom of the V-shaped discharge groove;
two air inlet plates; the two air inlet plates are arranged on the side walls of the main body boards along the length direction of the two main body boards respectively; a plurality of air inlet holes are uniformly distributed on the air inlet plate, and air inlet channels which are communicated with the air inlet holes in a one-to-one correspondence mode are arranged on the main body main plate;
a piano plate; the piano plate is arranged at the bottom of the spinneret plate; the top of wind instrument board be equipped with the rectifier tank of inlet air channel intercommunication, the tank bottom of rectifier tank is equipped with V type air-out groove, V type air-out groove sets up under the V type blown down tank.
2. The equal-flow-rate melt-blown die head device according to claim 1, wherein a plurality of accommodating holes are uniformly distributed in the main body plate along the vertical direction, and heating pipes are arranged in the accommodating holes.
3. The equal flow rate meltblowing die apparatus of claim 1 wherein a screen is disposed within the manifold.
4. The equal flow rate meltblowing die apparatus of claim 1 wherein the discharge orifice has a pore size of 3 mm.
5. The equal flow rate meltblowing die apparatus of claim 1 in which the orifices have a diameter of 0.2mm or 0.25 mm.
6. A constant flow rate meltblown die apparatus according to any of claims 1 to 5, wherein a plurality of rows of deceleration posts are densely arranged in said flow straightening slots, and wherein said rows of deceleration posts are staggered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010523999.3A CN111593423A (en) | 2020-06-10 | 2020-06-10 | Equal-flow-rate melt-blowing die head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010523999.3A CN111593423A (en) | 2020-06-10 | 2020-06-10 | Equal-flow-rate melt-blowing die head device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111593423A true CN111593423A (en) | 2020-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010523999.3A Pending CN111593423A (en) | 2020-06-10 | 2020-06-10 | Equal-flow-rate melt-blowing die head device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111593423A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113373593A (en) * | 2021-07-01 | 2021-09-10 | 佛山市启新模具有限公司 | Melt-blown fabric mould of double row hole shower nozzle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4889476A (en) * | 1986-01-10 | 1989-12-26 | Accurate Products Co. | Melt blowing die and air manifold frame assembly for manufacture of carbon fibers |
| US5728407A (en) * | 1995-05-26 | 1998-03-17 | Japan Vilene Company, Ltd. | Die for melt-blowing apparatus |
| US6013223A (en) * | 1998-05-28 | 2000-01-11 | Biax-Fiberfilm Corporation | Process and apparatus for producing non-woven webs of strong filaments |
| EP1057903A1 (en) * | 1999-06-01 | 2000-12-06 | Reifenhäuser GmbH & Co. Maschinenfabrik | Apparatus for the production of multicomponent yarns |
| CN1898418A (en) * | 2003-12-23 | 2007-01-17 | 金伯利-克拉克环球有限公司 | Meltblown die having a reduced size |
| CN203710902U (en) * | 2014-01-22 | 2014-07-16 | 北京利德衡环保工程有限公司 | Flue gas rectifying and oxidizing device for denitrifying by using wet oxidation absorption method |
| CN209619511U (en) * | 2018-12-13 | 2019-11-12 | 北京钧毅微纳新材科技有限公司 | A kind of clothes rack shape spinning die head flow passage structure, clothes rack shape spinning die head and device for melt blowing |
-
2020
- 2020-06-10 CN CN202010523999.3A patent/CN111593423A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4889476A (en) * | 1986-01-10 | 1989-12-26 | Accurate Products Co. | Melt blowing die and air manifold frame assembly for manufacture of carbon fibers |
| US5728407A (en) * | 1995-05-26 | 1998-03-17 | Japan Vilene Company, Ltd. | Die for melt-blowing apparatus |
| US6013223A (en) * | 1998-05-28 | 2000-01-11 | Biax-Fiberfilm Corporation | Process and apparatus for producing non-woven webs of strong filaments |
| EP1057903A1 (en) * | 1999-06-01 | 2000-12-06 | Reifenhäuser GmbH & Co. Maschinenfabrik | Apparatus for the production of multicomponent yarns |
| CN1898418A (en) * | 2003-12-23 | 2007-01-17 | 金伯利-克拉克环球有限公司 | Meltblown die having a reduced size |
| CN203710902U (en) * | 2014-01-22 | 2014-07-16 | 北京利德衡环保工程有限公司 | Flue gas rectifying and oxidizing device for denitrifying by using wet oxidation absorption method |
| CN209619511U (en) * | 2018-12-13 | 2019-11-12 | 北京钧毅微纳新材科技有限公司 | A kind of clothes rack shape spinning die head flow passage structure, clothes rack shape spinning die head and device for melt blowing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113373593A (en) * | 2021-07-01 | 2021-09-10 | 佛山市启新模具有限公司 | Melt-blown fabric mould of double row hole shower nozzle |
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| PB01 | Publication | ||
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Application publication date: 20200828 |