CN112048773A - Special polytetrafluoroethylene discharge gate mould of production polypropylene melt-blown material - Google Patents
Special polytetrafluoroethylene discharge gate mould of production polypropylene melt-blown material Download PDFInfo
- Publication number
- CN112048773A CN112048773A CN202011046094.8A CN202011046094A CN112048773A CN 112048773 A CN112048773 A CN 112048773A CN 202011046094 A CN202011046094 A CN 202011046094A CN 112048773 A CN112048773 A CN 112048773A
- Authority
- CN
- China
- Prior art keywords
- polypropylene melt
- die plate
- upper template
- filter screen
- blown
- 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.)
- Pending
Links
- -1 polytetrafluoroethylene Polymers 0.000 title claims abstract description 45
- 239000000463 material Substances 0.000 title claims abstract description 29
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 25
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 25
- 229920001343 polytetrafluoroethylene Polymers 0.000 title claims abstract description 20
- 239000004810 polytetrafluoroethylene Substances 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000009987 spinning Methods 0.000 claims abstract description 29
- 239000004744 fabric Substances 0.000 description 6
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 241000264877 Hippospongia communis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007378 ring spinning Methods 0.000 description 1
Images
Classifications
-
- 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
- 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
- D01D4/04—Cleaning spinnerettes or other parts of the spinnerette packs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The invention discloses a special polytetrafluoroethylene discharge port die for producing polypropylene melt-blown materials, which comprises an upper die plate, a filter screen, a feed channel, an air inlet pipe and a feed pipe, wherein when the discharge port die is used, the discharge end of an external device is communicated with the feed pipe, the air inlet pipe is communicated with an external air source, the polypropylene melt-blown materials are conveyed into the feed channel through the feed pipe by the external device, then enter the filament outlet channel through the filter screen and further enter the filament outlet, the polypropylene melt-blown materials are discharged through air gaps and then fall down through the filament outlet, when the interior of the discharge port die needs to be cleaned, the upper die plate is separated from the lower die plate by rotating a second bolt, then the spinning nozzle is separated from the upper die plate by rotating the first bolt, the filter screen is taken out, and through the operations, the upper die plate and the lower die plate are convenient to be conveniently cleaned, The spinneret and the filter screen are cleaned independently, and the gas tightness of the discharge hole die is improved by the arrangement of the first rubber ring and the second rubber ring.
Description
Technical Field
The invention relates to a discharge hole die, in particular to a special polytetrafluoroethylene discharge hole die for producing polypropylene melt-blown materials.
Background
The core filtering material is melt-blown cloth, the melt-blown cloth is produced by polypropylene melt-blown material, and the discharge port die is widely applied in the production process of the melt-blown cloth.
Most of the existing polytetrafluoroethylene discharge port dies special for polypropylene melt-blown material production used in the melt-blown cloth production process are single in structure, and operators are inconvenient to clean the insides of the dies after disassembling the dies, so that the dies need to be further improved.
Disclosure of Invention
The invention aims to provide a special polytetrafluoroethylene discharge hole die for producing polypropylene melt-blown materials, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a special polytetrafluoroethylene discharge hole die for producing polypropylene melt-blown materials comprises an upper die plate, wherein a plurality of equidistant feeding channels are arranged in the upper die plate, feeding pipes are arranged above the feeding channels, the bottom ends of the feeding pipes are fixedly connected with the top of the upper die plate, two first cavities are symmetrically arranged on two sides of the feeding channels in the upper die plate, two air inlet pipes are symmetrically and fixedly connected with the side wall of the upper die plate and correspondingly communicated with the first cavities, a plurality of lower die plates are arranged at equal intervals at the bottom of the upper die plate, four second bolts are symmetrically arranged at the bottoms of the lower die plates, the top ends of the four second bolts penetrate through the outer wall of the lower die plate and are in threaded connection with the bottom of the upper die plate, a plurality of spinning nozzles are arranged between the lower die plate and the upper die plate, and a main body of the spinning nozzle, which is positioned at the lower part of the, the spinning nozzle is provided with a yarn outlet channel, the yarn outlet channel is located under the feeding channel, four first bolts and four first bolt tops are connected with the bottom of the upper die plate in a symmetrical and fixed mode on the outer wall of the spinning nozzle in a penetrating mode, the outer wall of the lower die plate is provided with a yarn outlet in a penetrating mode, the yarn outlet is located under the yarn outlet channel, and two air gaps are symmetrically arranged between the lower die plate and the spinning nozzle.
As a further scheme of the invention: a first notch is formed in the top of the lower template and the bottom of the upper template, and a first rubber ring is arranged in the first notch.
As a still further scheme of the invention: the spinneret top and the upper die plate bottom are jointly provided with a third notch, a filter screen is placed in the third notch, and the filter screen is over against the filament outlet channel and the feeding channel.
As a still further scheme of the invention: and a second notch is formed at the bottom of the upper template and the top of the spinning nozzle together, and a second rubber ring is arranged in the second notch.
As a still further scheme of the invention: the first cavity, the second cavity, the air gap, the wire outlet channel and the feeding channel are communicated.
Compared with the prior art, the invention has the beneficial effects that:
1. when needs are cleared up inside the discharge port die, the upper die plate is separated from the lower die plate by rotating the second bolt, then the spinning nozzle is separated from the upper die plate by rotating the first bolt, then the filter screen is taken out, and through the above operation, the upper die plate, the lower die plate, the spinning nozzle and the filter screen are conveniently and independently cleared up, so that an operator can conveniently clear up the inside of the discharge port die.
When local jam in the discharge gate mould, dismantle the back through one of them lower bolster alone, dismantle one of them spinneret that will correspond again, and then do not need operating personnel to dismantle the mould wholly, and then saved physical power for operating personnel.
Drawings
FIG. 1 is a schematic structural view of a polytetrafluoroethylene discharge port die dedicated for producing polypropylene melt-blown material.
FIG. 2 is a front view of a special polytetrafluoroethylene discharge port die for producing polypropylene melt-blown material.
FIG. 3 is a right side view of a special polytetrafluoroethylene discharge port die for producing polypropylene melt-blown material.
FIG. 4 is a top view of a filter screen in a polytetrafluoroethylene discharge port die special for producing polypropylene melt-blown material
Shown in the figure: the device comprises an upper template 1, a first cavity 2, a first rubber ring 3, a first notch 4, a second rubber ring 5, a first bolt 6, a second cavity 7, a second bolt 8, a second notch 9, an air gap 10, a yarn outlet 11, a yarn outlet channel 12, a lower template 13, a spinning nozzle 14, a third notch 15, a filter screen 16, a feeding channel 17, an air inlet pipe 18 and a feeding pipe 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, in the embodiment of the invention, a special polytetrafluoroethylene discharge hole die for producing polypropylene melt-blown material comprises an upper die plate 1, wherein a plurality of equidistant feeding channels 17 are formed in the upper die plate 1, feeding pipes 19 are respectively arranged above the plurality of feeding channels 17, the bottom ends of the feeding pipes 19 are respectively and fixedly connected with the top of the upper die plate 1, two first cavities 2 are respectively and symmetrically formed in the upper die plate 1 at two sides of the feeding channels 17, two air inlet pipes 18 are symmetrically and fixedly connected with the side wall of the upper die plate 1, the two air inlet pipes 18 are correspondingly communicated with the first cavities 2, a plurality of lower die plates 13 are respectively and equidistantly arranged at the bottom of the upper die plate 1, first notches 4 are formed at the tops of the plurality of lower die plates 13 and the bottom of the upper die plate 1, first rubber rings 3 are arranged in the first notches 4, and four second bolts 8 are respectively and symmetrically arranged at the bottoms of the plurality of lower, the top ends of the four second bolts 8 penetrate through the outer wall of the lower template 13 and then are in threaded connection with the bottom of the upper template 1, a spinning nozzle 14 is arranged between the lower templates 13 and the upper template 1, the main body of the spinning nozzle 14, which is positioned at the lower part of the spinning nozzle, is in an inverted cone shape, a yarn outlet channel 12 is arranged in the spinning nozzle 14, the yarn outlet channel 12 is positioned under a feeding channel 17, a third notch 15 is jointly formed in the top of the spinning nozzle 14 and the bottom of the upper template 1, a filter screen 16 is arranged in the third notch 15, the filter screen 16 is over against the yarn outlet channel 12 and the feeding channel 17, a second notch 9 is jointly formed in the bottom of the upper template 1 and the top of the spinning nozzle 14, a second rubber ring spinning nozzle 5 is arranged in the second notch 9, the outer wall of the spinning nozzle 14 is symmetrically and fixedly connected with four first bolts 6, the top ends of the four first bolts 6 penetrate through the outer wall, the outer wall of the lower template 13 is provided with a filament outlet 11 in a penetrating manner, the filament outlet 11 is positioned under a filament outlet channel 12, two air gaps 10 are symmetrically arranged between the lower template 13 and the spinneret 14, the first cavity 2, the second cavity 7, the air gaps 10, the filament outlet 11, the filament outlet channel 12 and the feeding channel 17 are all communicated, and the upper template 1, the lower template 13, the spinneret 14 and the filter screen 16 are all made of polytetrafluoroethylene.
The working principle of the invention is as follows:
when the discharge port die is used, the discharge end of an external device is communicated with the feed pipe 19, the air inlet pipe 18 is communicated with an external air source, polypropylene melt-blown material is conveyed to the interior of the feed channel 17 through the feed pipe 19 by the external device and then enters the interior of the filament outlet channel 12 through the filter screen 16, most impurity particles in the polypropylene melt-blown material in a fluid state can be retained on the upper surface of the filter screen 16 by virtue of gravity, the polypropylene melt-blown material which is filtered to remove the impurity particles influencing curing forming enters the filament outlet 11, the polypropylene melt-blown material is discharged through the air gap 10 and then falls down through the filament outlet 11, when the interior of the discharge port die needs to be cleaned, the upper die plate 1 is separated from the lower die plate 13 by rotating the second bolt 8, and the spinning nozzle 14 is separated from the upper die plate 1 by rotating the first bolt 6, and then take out the filter screen 16, through the above operations, it is convenient to clean the upper template 1 and the lower template 13, the spinning nozzles 14 and the filter screen 16 separately, and then it is convenient for the operator to clean the inside of the discharge port die, the gas tightness of the discharge port die is increased by the arrangement of the first rubber ring 3 and the second rubber ring 5, when the inside of the discharge port die is partially blocked, after one lower template 13 is detached separately, the corresponding one spinning nozzle 14 is detached, and then it is unnecessary for the operator to detach the whole die, thereby saving physical strength for the operator, by making the upper template 1, the lower template 13, the spinning nozzle 14 and the filter screen 16 with polytetrafluoroethylene material instead of metal material, the material port die reduces the melt index deviation of polypropylene melt-blown material, and improves the technical parameter stability of the melt-blown fabric production process, the thickness uniformity of the melt-blown cloth is improved, fine and dense electret honeycombs are added, the particulate matter filtering efficiency is improved, and the advantages of small thermal deformation and small friction coefficient of the polytetrafluoroethylene material are utilized.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (5)
1. The utility model provides a special polytetrafluoroethylene discharge gate mould of production polypropylene melt-blown material, includes cope match-plate pattern (1), its characterized in that: a plurality of equidistant feeding channels (17) are arranged in the upper template (1), feeding pipes (19) are arranged above the feeding channels (17), the bottom ends of the feeding pipes (19) are fixedly connected with the top of the upper template (1), two first cavities (2) are symmetrically arranged on two sides of the feeding channels (17) in the upper template (1), two air inlet pipes (18) are symmetrically and fixedly connected with the side wall of the upper template (1), the two air inlet pipes (18) are correspondingly communicated with the first cavities (2), a plurality of lower templates (13) are arranged at the bottom of the upper template (1) at equal intervals, four second bolts (8) are symmetrically arranged at the bottoms of the lower templates (13), the top ends of the four second bolts (8) penetrate through the outer wall of the lower template (13) and then are in threaded connection with the bottom of the upper template (1), a plurality of all be provided with spinning jet (14) between lower bolster (13) and cope match-plate pattern (1), main part that spinning jet (14) is located its lower part is the back taper, it goes out silk passageway (12) to have seted up in spinning jet (14), it is located under feedstock channel (17) to go out silk passageway (12), four first bolt (6) of outer wall symmetry fixedly connected with of spinning jet (14), four first bolt (6) top run through behind the outer wall of spinning jet (14) with cope match-plate pattern (1) bottom threaded connection, the outer wall of lower bolster (13) is run through and has been seted up out silk mouth (11), it is located under silk passageway (12) to go out silk mouth (11), the symmetry is provided with two air gaps (10) between lower bolster (13) and spinning jet (14).
2. The special polytetrafluoroethylene discharge hole die for producing polypropylene melt-blown materials according to claim 1, characterized in that: a plurality of first notches (4) are formed in the tops of the lower templates (13) and the bottom of the upper template (1) together, and first rubber rings (3) are arranged in the first notches (4).
3. The special polytetrafluoroethylene discharge hole die for producing polypropylene melt-blown materials according to claim 1, characterized in that: the spinning head (14) top and cope match-plate pattern (1) bottom have seted up third notch (15) jointly, filter screen (16) have been placed in third notch (15), filter screen (16) just to going out silk passageway (12) and feedstock channel (17).
4. The special polytetrafluoroethylene discharge hole die for producing polypropylene melt-blown materials according to claim 1, characterized in that: and a second notch (9) is formed at the bottom of the upper template (1) and the top of the spinning nozzle (14) together, and a second rubber ring (5) is arranged in the second notch (9).
5. The special polytetrafluoroethylene discharge hole die for producing polypropylene melt-blown materials according to claim 1, characterized in that: the first cavity (2), the second cavity (7), the air gap (10), the wire outlet (11), the wire outlet channel (12) and the feeding channel (17) are communicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011046094.8A CN112048773A (en) | 2020-09-28 | 2020-09-28 | Special polytetrafluoroethylene discharge gate mould of production polypropylene melt-blown material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011046094.8A CN112048773A (en) | 2020-09-28 | 2020-09-28 | Special polytetrafluoroethylene discharge gate mould of production polypropylene melt-blown material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112048773A true CN112048773A (en) | 2020-12-08 |
Family
ID=73605851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011046094.8A Pending CN112048773A (en) | 2020-09-28 | 2020-09-28 | Special polytetrafluoroethylene discharge gate mould of production polypropylene melt-blown material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112048773A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112760724A (en) * | 2020-12-16 | 2021-05-07 | 湖南三易精工科技有限公司 | Spray head assembly of melt-blown fabric extruder for melt-blown fabric production and using method thereof |
| CN113005542A (en) * | 2021-02-03 | 2021-06-22 | 田同亮 | Melt-blown spray head structure capable of avoiding air passage blockage |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1132836A (en) * | 1964-12-08 | 1968-11-06 | Eastman Kodak Co | Improvements in or relating to spinnerettes |
| US3728061A (en) * | 1971-01-29 | 1973-04-17 | Mott Metallurg Corp | Multi-layer spinnerette with head filter |
| US6461133B1 (en) * | 2000-05-18 | 2002-10-08 | Kimberly-Clark Worldwide, Inc. | Breaker plate assembly for producing bicomponent fibers in a meltblown apparatus |
| US20050133971A1 (en) * | 2003-12-23 | 2005-06-23 | Haynes Bryan D. | Meltblown die having a reduced size |
| CN111593489A (en) * | 2020-06-23 | 2020-08-28 | 浙江恒道科技有限公司 | Melt-blown mould |
-
2020
- 2020-09-28 CN CN202011046094.8A patent/CN112048773A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1132836A (en) * | 1964-12-08 | 1968-11-06 | Eastman Kodak Co | Improvements in or relating to spinnerettes |
| US3728061A (en) * | 1971-01-29 | 1973-04-17 | Mott Metallurg Corp | Multi-layer spinnerette with head filter |
| US6461133B1 (en) * | 2000-05-18 | 2002-10-08 | Kimberly-Clark Worldwide, Inc. | Breaker plate assembly for producing bicomponent fibers in a meltblown apparatus |
| US20050133971A1 (en) * | 2003-12-23 | 2005-06-23 | Haynes Bryan D. | Meltblown die having a reduced size |
| CN111593489A (en) * | 2020-06-23 | 2020-08-28 | 浙江恒道科技有限公司 | Melt-blown mould |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112760724A (en) * | 2020-12-16 | 2021-05-07 | 湖南三易精工科技有限公司 | Spray head assembly of melt-blown fabric extruder for melt-blown fabric production and using method thereof |
| CN113005542A (en) * | 2021-02-03 | 2021-06-22 | 田同亮 | Melt-blown spray head structure capable of avoiding air passage blockage |
| CN113005542B (en) * | 2021-02-03 | 2024-01-23 | 嘉兴倍创网络科技有限公司 | Melt-blown cloth shower nozzle structure for avoiding air flue blockage |
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