CN212688378U - Uniform vacuumizing device for melt-blown fabric screen conveyer - Google Patents
Uniform vacuumizing device for melt-blown fabric screen conveyer Download PDFInfo
- Publication number
- CN212688378U CN212688378U CN202020709041.9U CN202020709041U CN212688378U CN 212688378 U CN212688378 U CN 212688378U CN 202020709041 U CN202020709041 U CN 202020709041U CN 212688378 U CN212688378 U CN 212688378U
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- Prior art keywords
- grid
- air
- air cavity
- wind chamber
- grids
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- 239000004744 fabric Substances 0.000 title claims abstract description 10
- 239000000835 fiber Substances 0.000 abstract description 6
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 239000000155 melt Substances 0.000 abstract description 2
- 238000009423 ventilation Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004750 melt-blown nonwoven Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- Treatment Of Fiber Materials (AREA)
Abstract
The utility model discloses an even evacuating device for melt-blown cloth net curtain conveyer, including the grid containing box, install the grid frame in the grid containing box, the grid frame comprises upper and lower floor, the lower floor include the middle part wind chamber that is located the middle part, the left side of middle part wind chamber is equipped with left side wind chamber, left side second wind chamber, left side third wind chamber, left side fourth wind chamber in proper order, and the right side of middle part wind chamber is equipped with right side first wind chamber, right side second wind chamber, right side third wind chamber, right side fourth wind chamber in proper order; the upper layer comprises a plurality of square middle grids positioned in the middle, a left first grid, a left second grid, a left third grid and a left fourth grid are sequentially arranged on the left side of the middle grids, and a right first grid, a right second grid, a right third grid and a right fourth grid are sequentially arranged on the right side of the middle grids; the grid frame is provided with a plurality of ventilation holes. The utility model discloses make the suction of middle part grid corresponding with the injection region that melts for the fibre web surface on the net curtain conveyer is arranged evenly, improves the holistic homogeneity of melt-blown cloth.
Description
Technical Field
The utility model particularly relates to an even evacuating device for melt-blown fabric net curtain conveyer.
Background
The melt-blown process principle is that polymer melt is extruded from a die head spinneret orifice to form melt trickle, heated stretching air is blown out from air ducts (air gaps) on two sides of the die head spinneret orifice at high speed to stretch the polymer melt trickle. Cooling air is supplemented from two sides at a certain position below the die head to cool and crystallize the fibers, and in addition, a spraying device can be arranged below the cooling air device to further rapidly cool the fibers. A vacuum suction device is arranged below the web forming curtain of the receiving device, so that the superfine fibers formed by high-speed air flow drawing are uniformly collected on the web forming curtain (or a roller) of the receiving device and become the melt-blown nonwoven material by self-bonding or other reinforcing methods.
In the prior art, the uneven arrangement of the surface of the fiber web is caused due to the unbalanced wind field of the vacuum suction device, so that the integral uniformity of melt-blown fabric is reduced, the quality is reduced, and the quality standard required by mask production cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects of the prior art, and provides an even vacuumizing device for a melt-blown fabric screen conveyer, which comprises a grid accommodating box, wherein a grid frame is arranged in the grid accommodating box, the grid frame consists of an upper layer and a lower layer, the lower layer comprises a middle air cavity positioned in the middle, the left side of the middle air cavity is sequentially provided with a left air cavity, a left second air cavity, a left third air cavity and a left fourth air cavity, and the right side of the middle air cavity is sequentially provided with a right first air cavity, a right second air cavity, a right third air cavity and a right fourth air cavity; the upper layer comprises a plurality of square middle grids positioned in the middle, a left first grid, a left second grid, a left third grid and a left fourth grid are sequentially arranged on the left side of the middle grids, and a right first grid, a right second grid, a right third grid and a right fourth grid are sequentially arranged on the right side of the middle grids; a plurality of vent holes are formed in the grid frame;
the lower end of the grid containing box is provided with a left air duct, a right air duct and a middle air duct; the top of the grid containing box is provided with a perforated plate, and the perforated plate is provided with a plurality of waist-shaped holes.
Furthermore, the middle air duct is installed at a position corresponding to the middle air cavity.
Furthermore, both sides of the middle air duct are provided with a middle air outlet.
Furthermore, the lower ends of the left air cavity, the left air cavity and the left air cavity are converged at the left air channel.
Furthermore, the lower ends of the right first grid, the right second grid, the right third grid and the right fourth grid are converged at the right side air channel.
Furthermore, the bottom of the air ducts at the two sides is provided with air outlets at the two sides.
Furthermore, each middle grid is internally provided with a vent hole.
Has the advantages that: the utility model discloses in, through the grid structure, will induced draft the homogenization to adjust through middle part air outlet and the different wind speeds with the lateral part air outlet, make the vacuum suction of middle part grid corresponding with the injection region who melts the shower, make the fibre web surface arrangement on the net curtain conveyer even, improve the holistic homogeneity of melt-blown cloth.
Drawings
FIG. 1 is a schematic perspective view of a uniform evacuation device for a meltblown web conveyor (hidden perforated plate);
FIG. 2 is a first schematic perspective view of a first vacuum extractor for a meltblown web conveyor;
FIG. 3 is a bottom perspective view of FIG. 2;
FIG. 4 is a top view of FIG. 1;
FIG. 5 is a schematic cross-sectional view of the middle portion of FIG. 2;
in the figure: 1. grid containing box, 2, grid frame, 201, middle air cavity, 202, middle grid, 211, left air cavity, 212, left air cavity, 213, left air cavity, 214, left air cavity, 221, right air cavity, 222, right air cavity, 223, right air cavity, 224, right air cavity, 231, left air grid, 232, left air grid, 233, left air grid, 234, left air grid, 241, right air grid, 242, right air grid, 243, right air grid, 244, right air grid, 3, vent hole, 4, left air channel, 5, right air channel, 6, middle air channel, 7, perforated plate, 8, waist-shaped hole.
Detailed Description
In order to deepen the understanding of the present invention, the present invention will be further described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.
As shown in fig. 1-5, an even vacuum pumping device for a melt-blown fabric curtain transporter comprises a grid accommodating box 1, a grid frame 2 is installed in the grid accommodating box 1, the grid frame 2 is composed of an upper layer and a lower layer, the lower layer comprises a middle air chamber 201 located in the middle, a left air chamber 211, a left air chamber 212, a left air chamber 213 and a left air chamber 214 are sequentially arranged on the left side of the middle air chamber 201, and a right air chamber 221, a right air chamber 222, a right air chamber 223 and a right air chamber 224 are sequentially arranged on the right side of the middle air chamber; the upper layer comprises a plurality of square middle grids 202 positioned in the middle, a left first grid 231, a left second grid 232, a left third grid 233 and a left fourth grid 234 are sequentially arranged on the left side of the middle grids, and a right first grid 241, a right second grid 242, a right third grid 243 and a right fourth grid 244 are sequentially arranged on the right side of the middle grids 202; a plurality of vent holes 3 are arranged on the grid frame 2;
the lower end of the grid containing box 1 is provided with a left air duct 4, a right air duct 5 and a middle air duct 6; the top of the grid containing box 1 is provided with a perforated plate 7, and the perforated plate is provided with a plurality of waist-shaped holes 8.
In this embodiment, the middle air duct is installed at a position corresponding to the middle air cavity.
In this embodiment, the air outlet in the middle part is all installed to the both sides in middle part wind channel.
In this embodiment, the lower ends of the left air chamber, the left air chamber and the left air chamber are converged at the left air duct.
In this embodiment, the lower ends of the right first grid, the right second grid, the right third grid and the right fourth grid are converged at the right side air duct.
In this embodiment, the bottom of the two side air channels is provided with a side air outlet.
In this embodiment, each middle grid is provided with a vent hole therein.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The uniform vacuumizing device for the melt-blown fabric screen conveyer is characterized by comprising a grid containing box, wherein a grid frame is installed in the grid containing box and consists of an upper layer and a lower layer, the lower layer comprises a middle air cavity positioned in the middle, a left air cavity, a right air cavity, a left air cavity and a left air cavity are sequentially arranged on the left side of the middle air cavity, and a right air cavity, a right air cavity and a right air cavity are sequentially arranged on the right side of the middle air cavity; the upper layer comprises a plurality of square middle grids positioned in the middle, a left first grid, a left second grid, a left third grid and a left fourth grid are sequentially arranged on the left side of the middle grids, and a right first grid, a right second grid, a right third grid and a right fourth grid are sequentially arranged on the right side of the middle grids; a plurality of vent holes are formed in the grid frame;
the lower end of the grid containing box is provided with a left air duct, a right air duct and a middle air duct; the top of the grid containing box is provided with a perforated plate, and the perforated plate is provided with a plurality of waist-shaped holes.
2. The uniform vacuum extractor of claim 1, wherein the central duct is mounted at a location corresponding to the central air chamber.
3. The uniform vacuum extractor of claim 1, wherein the middle air channel has a middle air outlet on each side.
4. The uniform vacuum extractor of claim 1, wherein the lower ends of the first, second, third and fourth left air chambers converge at the left air duct.
5. The uniform evacuation device for a meltblown web conveyor of claim 1 wherein the lower ends of the right first, second, third and fourth grids converge at the right side duct.
6. The uniform vacuum extractor of claim 1, wherein the bottom of the two side ducts is provided with side air outlets.
7. The apparatus of claim 1 wherein each of said central grills has a vent hole therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020709041.9U CN212688378U (en) | 2020-05-01 | 2020-05-01 | Uniform vacuumizing device for melt-blown fabric screen conveyer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020709041.9U CN212688378U (en) | 2020-05-01 | 2020-05-01 | Uniform vacuumizing device for melt-blown fabric screen conveyer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212688378U true CN212688378U (en) | 2021-03-12 |
Family
ID=74886999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020709041.9U Expired - Fee Related CN212688378U (en) | 2020-05-01 | 2020-05-01 | Uniform vacuumizing device for melt-blown fabric screen conveyer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212688378U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116262995A (en) * | 2021-12-15 | 2023-06-16 | 浙江朝隆纺织机械股份有限公司 | Melt-blown suction net forming structure |
-
2020
- 2020-05-01 CN CN202020709041.9U patent/CN212688378U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116262995A (en) * | 2021-12-15 | 2023-06-16 | 浙江朝隆纺织机械股份有限公司 | Melt-blown suction net forming structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210312 |
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| CF01 | Termination of patent right due to non-payment of annual fee |