CN212426254U - Melt and spout cloth machine and spout a mould - Google Patents
Melt and spout cloth machine and spout a mould Download PDFInfo
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- CN212426254U CN212426254U CN202020920800.6U CN202020920800U CN212426254U CN 212426254 U CN212426254 U CN 212426254U CN 202020920800 U CN202020920800 U CN 202020920800U CN 212426254 U CN212426254 U CN 212426254U
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Abstract
The utility model relates to a melt-blown fabric production technical field, concretely relates to melt-blown fabric machine spouts a mould. The method comprises the following steps: the spinneret plate is provided with a plate body and a die point at one side of the plate body, and the top of the die point is provided with spinneret orifices for dispersing melt to a working width; the air quantity adjusting plates are arranged on two sides of the die point, form air gaps with the die point, and simultaneously form an air outlet cavity with the plate body, the air outlet cavity is communicated with the air gaps, the air quantity adjusting plates are provided with air inlet cavities, the air inlet cavities are symmetrically distributed on two sides of the die point, the air inlet cavities are communicated with the air outlet cavities to form first air holes, the air inlet cavities are internally provided with pipe bodies, gaps are reserved between the pipe bodies and the inner wall of the air inlet cavities, and the pipe bodies are far away from the first air holes to form second air holes communicated to the gaps. The utility model provides a melt-blown fabric machine that the air-out is even, and finished product quality is excellent spouts a mould.
Description
Technical Field
The utility model relates to a melt-blown fabric production technical field, concretely relates to melt-blown fabric machine spouts a mould.
Background
Meltblown webs are nonwovens made by drawing a polymer melt stream from a die orifice with a high velocity stream of hot air to form microfibers which are collected on a screen or drum and bonded to itself.
The spinning die is an indispensable machine tool in the production process of melt-blown fabric. Each set of spinning die is provided with the processes of feeding, filtering, shunting, extruding and blowing. The working principle of the existing spinning die blowing device is that air passing through an air heater directly enters a die, and the conventional air inlet mode has the following defects: 1) the air enters through the side plate of the air inlet, and the air pressure of the air outlet in the linear pipeline is higher, so that the pressure of the air at two ends of the discharge port is lower, the place with large melt-blown air distribution blown out under the condition of unbalanced air pressure is thicker, and the place with small air is thinner; 2) air is supplied from the upper side and the lower side of the air quantity adjusting plate of the spinneret plate, and the air pressure at the air inlet is larger than that of the other parts.
Above air inlet mode makes the whole width of spinning mould discharge gate department go up gas flow inhomogeneous, and the melt-blown cloth unit grammes per square metre of preparation is uneven for there is protection defect when making protective articles such as gauze mask, and simultaneously, the gained melt-blown cloth quality is not high, still can influence the sales condition.
Disclosure of Invention
In order to solve the problem of uneven gas flow in the blowing process, the utility model aims to provide a melt-blown fabric spraying machine spinning die with even air outlet and excellent finished product quality.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a melt-blowing machine spinning die comprising:
the spinneret plate is provided with a plate body and a die point at one side of the plate body, and the top of the die point is provided with spinneret orifices for dispersing melt to a working width;
the air quantity adjusting plates are arranged on two sides of the die point, form air gaps with the die point, and simultaneously form an air outlet cavity with the plate body, the air outlet cavity is communicated with the air gaps, the air quantity adjusting plates are provided with air inlet cavities, the air inlet cavities are symmetrically distributed on two sides of the die point, the air inlet cavities are communicated with the air outlet cavities to form first air holes, the air inlet cavities are internally provided with pipe bodies, gaps are reserved between the pipe bodies and the inner wall of the air inlet cavities, and the pipe bodies are far away from the first air holes to form second air holes communicated to the gaps.
Furthermore, a plurality of groups of second air holes are arranged on the pipe body, and the second air holes are symmetrically formed in the upper side and the lower side of the first air holes.
Furthermore, the side wall of the air outlet chamber on the air volume adjusting plate is provided with a blocking part, and the blocking part enables the air outlet chamber to form a C-shaped or wave-shaped airflow channel for carding airflow.
Furthermore, the included angle of the air gaps on the two sides is equal to the included angle of the bevel edges on the two sides of the die point.
Furthermore, sealing plates are arranged on two sides of the spinneret plate and the air volume adjusting plate.
Furthermore, a splitter plate is arranged in the spinneret plate, a plurality of melt flow channels formed by extending towards two sides are formed in the splitter plate, and a filter screen is arranged on the inlet side of each melt flow channel.
The utility model discloses a chamber built-in body admits air, the body with the chamber inner wall admits air leaves the clearance, and hot air current gets into the body from both sides, through the second wind hole diffusion of seting up on the body gets into behind the clearance, the low pressure air current at both ends with the outside high pressure draught intensive mixing of clearance department body to reach through certain route first wind hole, this moment, get into the gas in first wind hole has the unanimous characteristics of flow on the whole broad width of mould, the spinneret orifice goes out the silk evenly, and the melt-blown cloth density that so blows the material and make is even, and the protective articles performance that makes is excellent, and the sales conditions is good.
The utility model discloses a promotion blow the mode of material process gas flow homogeneity, design benefit, simple structure, convenient operation, the effect is outstanding.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is an exploded view of the present invention;
fig. 3 is a side view of the present invention.
Detailed Description
For the related technical personnel to more clearly understand the technical scheme of the utility model, the utility model will now be described in further detail with reference to the attached drawings.
In the description of the present invention, it is to be understood that the positional or orientational relationships denoted by the terms "upper", "lower", "front", "rear", "left", "right", "lateral", "longitudinal", and the like are positional or orientational relationships shown in the drawings, which are for convenience of description only and to simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Examples
As shown in fig. 1-3, a spinneret die of a melt-blowing machine comprises:
a feeding plate 1, wherein one side of the feeding plate is provided with a feeding hole, and the other side of the feeding plate is provided with a first groove for the melt to diffuse along two sides;
the spinneret plate 4 is located on one side of the feeding plate 1 and is provided with a second groove corresponding to the first groove, a filter screen 2 for filtering impurities and gel particles is arranged at the notch of the second groove, a splitter plate 3 for supporting the filter screen 2 is arranged inside the second groove, and a plurality of melt flow channels for distributing melt are arranged on the splitter plate 3 and extend towards two sides, so that the melt distribution is more uniform. And a die point is arranged on one side of the spinneret plate 4 far away from the feeding plate 1, a row of spinneret holes 11 are processed at the top end of the die point, and the spinneret holes 11 are communicated with the melt flow channel to disperse the melt to the working width. Through holes for accommodating heating rods 13 are formed in the spinneret plate 4 at two sides of the melt flow channel;
air volume adjusting plate 5, set up in the mould point both sides, with the mould point forms the air gap that supplies the draft air current to pass through, simultaneously with the plate body forms air outlet chamber 12, air outlet chamber 12 with the air gap intercommunication, both sides the contained angle of air gap with the contained angle of the hypotenuse of mould point both sides is unanimous, lie in on the air volume adjusting plate 5 air outlet chamber 12's lateral wall has stop part 14. The air volume adjusting plate 5 is provided with an air inlet cavity 15, the air inlet cavity 15 is symmetrically distributed on two sides of the die tip, a first air hole 9 is formed in the air inlet cavity 15 and the air outlet cavity 12 in a penetrating mode, a pipe body 8 is arranged in the air inlet cavity 15, a gap is reserved between the pipe body 8 and the inner wall of the air inlet cavity 15, and a second air hole communicated to the gap is formed in the pipe body 8, far away from the first air hole 9. Preferably, a plurality of groups of second air holes with the aperture of 2mm are arranged on the pipe body 8, and the second air holes are symmetrically arranged on the upper side and the lower side of the first air hole 9;
the feeding plate 1, the spinneret plate 4 and the air volume adjusting plate 5 are fixedly connected through a plurality of through holes correspondingly formed. Is convenient to disassemble and clean.
The spinning die is also provided with a plurality of spinning nozzles which are arranged in sequence in the direction vertical to the flow direction of the melt:
and the sealing plate 6 is used for supporting the pipe body 8 and sealing one side of the air outlet chamber 12, so that the high-speed airflow entering the air outlet chamber 12 is forced to blow out along the air gap.
And the side plate 7 is positioned on the outer side of the sealing plate 6, and is enclosed and fixed together with the feeding plate 1, the spinneret plate 4 and the air volume adjusting plate 5.
Through the technical scheme, 1) the tube body is arranged in the air inlet chamber, a gap is reserved between the tube body and the inner wall of the air inlet chamber, hot air flows enter the tube body from two sides, and after the hot air flows are diffused into the gap through double rows of second air holes symmetrically formed in the tube body, low-pressure air flows at two ends are fully mixed with high-pressure air flows outside the tube body at the gap and respectively reach the first air holes through the same path, at the moment, the gas entering the first air holes has the characteristic of consistent flow on the whole width of the die, filaments are uniformly discharged from the filament spraying holes, the density of the melt-blown fabric prepared by blowing is uniform, and the prepared protective article is excellent in performance and good in sales condition; 2) the side wall of the air volume adjusting plate, which is positioned in the air outlet chamber, is provided with blocking parts, the blocking parts can be arranged at intervals in multiple rows to form a C-shaped or wave-shaped airflow channel for carding airflow, and blown air is further carded by the blocking parts and then is more uniformly dispersed to the spinneret orifice end; 3) the contained angle of air gap with the contained angle of the equal hypotenuse of mould point both sides is unanimous for blow the material gas position in both sides the air current of air gap department is even, and atmospheric pressure is stable, blows simultaneously that the material gas is followed certain angle and is drafted the fuse-element trickle, is favorable to the unordered range of fuse-element trickle to congealing on collection device such as net curtain, and the fuse-blown cloth anisotropic ability that finally obtains is excellent.
The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can also substitute or change the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (6)
1. A melt-blowing machine spinning die, comprising:
the spinneret plate (4) is provided with a plate body and a die point on one side of the plate body, and the top of the die point is provided with spinneret orifices (11) for dispersing melt to a working width;
the air volume adjusting plate (5) is arranged on two sides of the die point, an air gap is formed between the air volume adjusting plate and the die point, an air outlet cavity (12) is formed between the air outlet cavity (12) and the air gap, the air volume adjusting plate (5) is provided with an air inlet cavity (15), the air inlet cavity (15) is symmetrically distributed on two sides of the die point, a first air hole (9) is formed in the air inlet cavity (15) and the air outlet cavity (12) in a penetrating mode, a pipe body (8) is arranged in the air inlet cavity (15), a gap is reserved between the pipe body (8) and the inner wall of the air inlet cavity (15), and a second air hole (10) communicated to the gap is formed in the pipe body (8) far away from the first air hole (9).
2. The spinneret die of the melt-blowing machine according to claim 1, wherein a plurality of sets of the second air holes (10) are arranged on the tube body (8), and the second air holes (10) are symmetrically arranged on the upper and lower sides of the first air holes (9).
3. The spinneret die of claim 1, wherein the air volume adjusting plate (5) has a blocking portion (14) on the side wall of the air outlet chamber (12), and the blocking portion (14) enables the air outlet chamber (12) to form a C-shaped or wave-shaped airflow channel for carding airflow.
4. The meltblowing die of claim 1 wherein the air gap is angled at an angle equal to the angle of the beveled edges of the die tip.
5. The spinneret die of the melt-blowing machine according to claim 1, wherein the spinneret plate (4) and the air volume adjusting plate (5) have sealing plates (6) on both sides.
6. The spinneret die of the melt blowing machine according to claim 1, wherein a splitter plate (3) is arranged in the spinneret plate (4), the splitter plate (3) is provided with a plurality of melt channels extending towards two sides, and a filter screen (2) is arranged at the inlet side of the melt channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020920800.6U CN212426254U (en) | 2020-05-27 | 2020-05-27 | Melt and spout cloth machine and spout a mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020920800.6U CN212426254U (en) | 2020-05-27 | 2020-05-27 | Melt and spout cloth machine and spout a mould |
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| Publication Number | Publication Date |
|---|---|
| CN212426254U true CN212426254U (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020920800.6U Active CN212426254U (en) | 2020-05-27 | 2020-05-27 | Melt and spout cloth machine and spout a mould |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113005542A (en) * | 2021-02-03 | 2021-06-22 | 田同亮 | Melt-blown spray head structure capable of avoiding air passage blockage |
-
2020
- 2020-05-27 CN CN202020920800.6U patent/CN212426254U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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