CN212388147U - Melt-blowing die head for producing melt-blown cloth - Google Patents
Melt-blowing die head for producing melt-blown cloth Download PDFInfo
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- CN212388147U CN212388147U CN202020884056.9U CN202020884056U CN212388147U CN 212388147 U CN212388147 U CN 212388147U CN 202020884056 U CN202020884056 U CN 202020884056U CN 212388147 U CN212388147 U CN 212388147U
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Abstract
The utility model provides a melt-blown die head for producing melt-blown cloth, which comprises a shell, wherein the shell is provided with a material injection hole, the bottom of the shell is provided with micropores arranged along the length direction of the shell, the material injection hole is communicated with the micropores through a flow passage, the shell at the two sides of the micropores is internally provided with a blowing gap, the blowing gap is communicated with an air supply pipe through an air passage, the shell comprises a splitter plate and a spinneret plate which are fixedly connected, the two sides of the bottom of the spinneret plate are both provided with air plates arranged along the length direction of the spinneret plate, the utility model allows the whole melt-blown die head to realize the continuous extrusion production of material injection, the material pressure in each splitter branch is the same, the material can enter the spinneret plate at the same speed and flow rate, the phenomena of uneven material flow, material solidification and the like are avoided, and the arrangement of the air passages in the air plates and the, the problem of material residue in the production process can be solved, and the production efficiency and the processing quality of the melt-blown fabric can be improved.
Description
Technical Field
The utility model belongs to the technical field of the preparation of melt-blown fabric and specifically relates to a melt-blown die head for producing melt-blown fabric.
Background
The melt-blown fabric is the most core material of the mask, the melt-blown fabric mainly takes polypropylene as a main raw material, and the fiber diameter can reach 1-5 microns. The superfine fiber with the unique capillary structure increases the number and the surface area of the fiber per unit area, so that the melt-blown fabric has good filtering property, shielding property, heat insulation property and oil absorption property. Can be used in the fields of air and liquid filtering materials, isolating materials, absorbing materials, mask materials, warm-keeping materials, oil absorbing materials, wiping cloth and the like. The mode of current production melt-blown fabric is usually with the extruder extrude the polypropylene material earlier and keep in a jar body container, jar body container bottom installation extrusion tooling, the material need advance go into in the container then fall into extrusion tooling, just can form melt-blown fabric, however the material in jar body container often has the flow inhomogeneous, shortcoming such as solidify easily, after long-term accumulation uses, can appear the remaining problem of being not convenient for of material clearance in the container of keeping in, cause the waste of material easily, change the speed that the material got into extrusion tooling, and then seriously influence melt-blown fabric's machining efficiency and quality.
Disclosure of Invention
In order to solve the problems, an object of the utility model is to provide a melt-blown die head for producing melt-blown fabric, through the production mode of continuous injection material to and melt-blown die head inside reposition of redundant personnel branch road isotructure, realize the continuous extrusion production that the material was injected into, the material pressure homogeneous phase in each reposition of redundant personnel branch road is the same, can enter into extrusion tooling with same speed and flow in, with the remaining problem of solution production in-process material, improves melt-blown fabric's production efficiency and processingquality.
The utility model provides a technical scheme that its technical problem adopted is: the device comprises a shell, wherein a material injection hole is formed in the shell, micropores arranged along the length direction of the shell are formed in the bottom of the shell, the material injection hole is communicated with the micropores through a flow channel, a blowing gap is formed in the shell on two sides of each micropore, the blowing gap is communicated with an air supply pipe through an air passage, the shell comprises a splitter plate and a spinneret plate which are fixedly connected, the air plate arranged along the length direction of the spinneret plate is arranged on two sides of the bottom of the spinneret plate, the splitter plate is positioned on the upper side of the spinneret plate and is communicated with the spinneret plate, the material injection hole and a cavity which are communicated with each other are formed in the splitter plate, the cavity is communicated with at least two splitter branches, a long groove is formed in the bottom of the splitter plate along the length direction of the splitter plate, an outlet of each splitter branch is communicated with the long groove and corresponds to the position of the long groove, a vertical flow channel communicated with the, the bottom of connecting the chamber sets up the one row of micropore that sets up along its length direction, micropore diameter is less than the diameter of vertical runner, is equipped with first inclined plane in the bottom of spinneret, and the gas slab inboard is equipped with the second inclined plane with first inclined plane matched with, form the gap of blowing between first inclined plane and the second inclined plane, seted up two at least inlet ports on the lateral surface of gas slab, the inside air cavity of setting up along its length direction of seting up of gas slab, the inlet port all communicates with the air cavity mutually, still seted up the venthole at the upside of air cavity, corresponding to the position of venthole, seted up the air duct of arranging along its length direction in the bottom of spinneret, the air duct communicates with the gap of blowing mutually, still installs the gas slab gasket in the both ends position department of gas slab.
And a pressure gauge is arranged on the flow distribution plate, and a joint of the pressure gauge is communicated with the cavity.
The spinneret plate is characterized in that connecting pipes are mounted at two ends of the spinneret plate, control valves are arranged on the connecting pipes, and the control valves are communicated with the connecting cavities through the connecting pipes.
The gas distributor is characterized in that a connecting plate is arranged on the same side face of the flow distribution plate, the spinneret plate and the gas plate, the upper end of the connecting plate is fixedly connected with the flow distribution plate, a first screw hole and a through hole are formed in the lower end of the connecting plate, a second screw hole corresponding to the through hole is formed in the side face of the gas plate, a first bolt is installed in the first screw hole in a matched mode, a second bolt is installed in the second screw hole in a matched mode, the first inclined face of the gas plate is close to the second inclined face by rotating the first bolt, and the first inclined face of the gas plate is far away from the second inclined face by rotating the second bolt.
And a flow adjusting bolt is arranged on the flow distribution plate corresponding to the position of the flow distribution branch, and one end of the flow adjusting bolt can extend into the flow distribution branch.
The flow distribution plate is composed of two symmetrical templates, and a material injection hole, a cavity, a flow distribution branch and a long groove are formed between the two templates.
The branch road total eight with cavity looks UNICOM, every branch road that divides all is equipped with tertiary branch, and every branch road branch divide equally into two branch roads, and the branch road export with rectangular groove looks UNICOM totally sixty four.
The connecting cavities are distributed in a downward-shrinking ladder shape, and the diameters of the connecting cavities are gradually reduced from top to bottom.
The utility model has the advantages of: a melt-blown die head for producing melt-blown cloth, flow distribution plate and spinneret including fixed connection and looks UNICOM, and two gas plates of spinneret bottom, the inside structure setting of each reposition of redundant personnel branch road and vertical runner of flow distribution plate and spinneret, allow whole melt-blown die head to realize the continuous extrusion production that the material was injected into, material pressure in each reposition of redundant personnel branch road is the same, can enter into the spinneret with same speed and flow, avoid appearing the material flow inhomogeneous, phenomenons such as material solidification, and the setting of gas circuit in gas plate and the spinneret, more be favorable to the fuse-element material to form superfine fiber's melt-blown cloth, can not only solve the remaining problem of material in the production process, can also improve the production efficiency and the processingquality of melt-blown cloth.
Drawings
Fig. 1 is a schematic three-dimensional structure of the present invention;
fig. 2 is a front view of the present invention;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a sectional view taken along line A-A of FIG. 3 (the dotted line indicates the direction of flow of the material);
FIG. 5 is an enlarged view of the cross-sectional view taken along line B-B in FIG. 4;
FIG. 6 is an enlarged partial view of I of FIG. 5;
FIG. 7 is a schematic view of the split flow distribution plate;
fig. 8 is a schematic diagram of the structure of the spinneret plate;
FIG. 9 is a schematic view of the structure of the gas panel;
FIG. 10 is an enlarged view in section taken along line C-C of FIG. 2;
fig. 11 is an enlarged view of a cross-sectional view taken along line D-D in fig. 2.
In the figure, a flow distribution plate 1, a spinneret plate 3, an air plate 4, a material injection hole 5, a cavity 6, a flow distribution branch 7, a long groove 8, a connecting pipe 9, a vertical flow passage 10, a connecting cavity 11, micropores 12, a first inclined surface 13, a second inclined surface 14, an air blowing gap 15, an air inlet hole 16, an air outlet hole 17, an air groove 19, an air plate gasket 20, a pressure gauge 21, a connecting plate 23, a first screw hole 24, a through hole 25, a second screw hole 26, a first bolt 27, a second bolt 28 and flow.
Detailed Description
A melt-blown die head for producing melt-blown cloth, which comprises a housin, notes material hole (4) have been seted up on the casing, micropore (11) of arranging along its length direction are seted up to the casing bottom, annotate and pass through runner looks UNICOM between material hole (4) and micropore (11), be equipped with in the casing of micropore (11) both sides gap (14) of blowing, gap (14) of blowing passes through air flue and air supply pipe looks UNICOM, when carrying out production, the material is poured into in succession in by annotating material hole (4), finally discharge through micropore (11) via the runner, the gap (14) of blowing of both sides blow off has high velocity air, make the discharged fuse-element material form superfine fiber's melt-blown cloth.
As shown in fig. 1, the housing may include a splitter plate (1) and a spinneret plate (2) which are fixedly connected, and air plates (3) arranged along the length direction of the spinneret plate (2) are installed on both sides of the bottom of the spinneret plate (2), wherein the splitter plate (1) is located on the upper side of the spinneret plate (2) and is communicated with the spinneret plate, and is used for respectively performing multi-stage splitting and refining on the polypropylene material injected therein, and under the clamping, drafting and attenuating action of high-speed air flow blown by the air plates (3) on both sides, the melt material sprayed from the spinneret plate (2) is cooled to form ultrafine fibers, i.e., the obtained melt-blown fabric.
As shown in fig. 4 and 7, the material injection hole (4) and the cavity (5) which are communicated with each other are formed in the flow distribution plate (1), the material injection hole (4) is communicated with an external material injection pipe so as to guide a material to be produced into the melt-blown die head, and the cavity (5) is communicated with at least two flow distribution branches (6) so as to distribute the material in the cavity (5). The bottom of the flow distribution plate (1) is provided with a long groove (7) along the length direction, the outlet of each flow distribution branch (6) is communicated with the long groove (7), and materials in the material injection holes (4) finally fall into the long groove (7) through the cavity (5) and the flow distribution branches (6) in sequence, so that the materials entering the flow distribution plate (1) can uniformly fall into the spinneret plate (2) at the bottom of the flow distribution plate.
As shown in fig. 5 and 8, corresponding to the position of the long strip groove (7), a vertical flow channel (9) communicated with the long strip groove (7) is arranged in the spinneret plate (2), a connecting cavity (10) communicated with the vertical flow channel (9) is further arranged in the spinneret plate (2), as shown in fig. 6, a row of micropores (11) arranged along the length direction of the connecting cavity (10) are arranged at the bottom of the connecting cavity (10), the diameter of each micropore (11) is smaller than that of the vertical flow channel (9), and melt materials in the spinneret plate (2) sequentially pass through the vertical flow channel (9) and the connecting cavity (10) and are finally sprayed out through the micropores (11) after being refined step by step.
As shown in fig. 5 and 9, a first inclined plane (12) is arranged at the bottom of the spinneret plate (2), a second inclined plane (13) matched with the first inclined plane (12) is arranged at the inner side of the gas plate (3), a gas blowing gap (14) is formed between the first inclined plane (12) and the second inclined plane (13), the gas blowing gaps (14) at two sides are obliquely arranged, and high-speed gas blown out from the gas blowing gaps can be converged at the outlet position of the micropore (11). The outer side surface of the air plate (3) is provided with at least two air inlets (15), the air inlets (15) are communicated with an external air supply pipe, an air cavity (16) arranged along the length direction of the air plate (3) is formed inside the air plate (3), the air inlets (15) are communicated with the air cavity (16), air outlets (17) are further formed in the upper side of the air cavity (16), air grooves (18) arranged along the length direction of the spinneret plate are formed in the bottom of the spinneret plate (2) corresponding to the positions of the air outlets (17), the air grooves (18) are communicated with the air blowing gap (14), high-speed air input by the external air supply pipe sequentially passes through the air inlets (15), the air cavity (16), the air outlets (17) and the air grooves (18), and is blown downwards through the air blowing gap (14) to clamp, draw and thin melt materials sprayed by the spinneret plate (2), and finally form melt spraying cloth.
Air plate gaskets (19) are further mounted at the positions of two ends of the air plate (3) to ensure that an air cavity (16) on the air plate (3) is sealed, and leakage of high-speed air entering the air plate (3) can be effectively prevented.
Further, install manometer (20) on flow distribution plate (1), manometer (20) connect and cavity (5) looks UNICOM to pressure value in real-time supervision cavity (5) feeds back through the demonstration numerical value of pressure value and annotates whether normal clear of material and the hierarchical operation of material, so that in time handle the material and block or the material takes place the condition of card pause, guarantees the normal clear of melt-blown cloth preparation.
As shown in fig. 2, connecting pipes (8) are installed at both ends of the spinneret plate (2), a control valve (21) is arranged on the connecting pipes (8), the control valve (21) is communicated with the connecting cavity (10) through the connecting pipes (8), one end of the control valve (21) is connected with an external air path system, when the control valves (21) at both sides are opened simultaneously by controlling the opening and closing of the control valves (21) at both sides, the connecting cavity (10) and the control valves (21) at both sides form a passage, the air flow inside the connecting cavity (10) can blow out the materials remained in the connecting cavity (10), when the control valve (21) at one side is opened and the control valve (21) at the other side is closed, the introduced air flow can be blown out from the micropores (11) so as to blow off the materials inside of the micropores (11), and when the control valves (21) at both sides are closed, no air enters the connecting cavity (10), at this time, the meltblown fabric was produced.
In order to enable the melt-blowing die head for producing the melt-blown cloth of the utility model to be suitable for producing various types of melt-blown cloth, the same side surfaces of the splitter plate (1), the spinneret plate (2) and the gas plate (3) are provided with connecting plates (22), the upper ends of the connecting plates (22) are fixedly connected with the splitter plate (1), the lower end of the connecting plate (22) is provided with a first screw hole (23) and a through hole (24), as shown in figure 10, corresponding to the position of the through hole (24), a second screw hole (25) corresponding to the through hole is formed in the side face of the air plate (3), a first bolt (26) is installed in the first screw hole (23) in a matched mode, a second bolt (27) is installed in the second screw hole (25) in a matched mode, the first inclined face (12) of the air plate (3) is close to the second inclined face (13) by rotating the first bolt (26), and the first inclined face (12) of the air plate (3) is far away from the second inclined face (13) by rotating the second bolt (27). The distance between the first inclined plane (12) and the second inclined plane (13), namely the width of the air blowing gap (14), can be adjusted by respectively rotating the first bolt (26) and the second bolt (27), and further parameters such as the flow rate and the speed of high-speed air blown out can be adjusted, so that different types of melt-blown fabrics can be produced conveniently.
Further, in order to adjust the flow and the speed of the material falling into the spinneret plate (2) in the branch flow passage (6), as shown in fig. 11, a flow adjusting bolt (28) is installed on the branch flow plate (1) corresponding to the position of the branch flow passage (6), one end of the flow adjusting bolt (28) can extend into the branch flow passage (6), the size of the inner volume of the branch flow passage (6) can be changed by changing the volume of the flow adjusting bolt (28) extending into the branch flow passage (6), and then the flow of the material entering the spinneret plate (2) from the branch flow plate (1) can be adjusted.
The flow distribution plate (1) can be integrally constructed through a casting mold, in order to facilitate the disassembly and the replacement of the whole die head and the cleaning, the flow distribution plate (1) can also be composed of two symmetrical templates, and a material injection hole (4), a cavity (5), a flow distribution branch (6) and a long groove (7) are formed between the two templates, so that the disassembly and the cleaning of the inside of the flow distribution plate are facilitated.
Furthermore, as shown in fig. 4, the number of the branch paths (6) communicated with the chamber (5) is eight, each branch path (6) is provided with three-stage branches, each stage branch is divided into two branch paths, and the number of the branch path outlets communicated with the elongated slot (7) is sixty-four, as shown in fig. 6, the connecting cavities (10) are distributed in a downward-shrinking step shape, and the diameters of the connecting cavities (10) from top to bottom are gradually reduced.
Technical scheme of the utility model not be restricted to the utility model the within range of embodiment. The technical contents not described in detail in the present invention are all known techniques.
Claims (8)
1. A meltblown die head for producing meltblown fabric, comprising: comprises a shell, wherein the shell is provided with a material injection hole (4), the bottom of the shell is provided with micropores (11) arranged along the length direction of the shell, the material injection hole (4) is communicated with the micropores (11) through a flow channel, air blowing gaps (14) are arranged in the shell at the two sides of the micropores (11), the air blowing gaps (14) are communicated with an air supply pipe through an air channel, the shell comprises a splitter plate (1) and a spinneret plate (2) which are fixedly connected, the air plate (3) arranged along the length direction of the spinneret plate is arranged at the two sides of the bottom of the spinneret plate (2), the splitter plate (1) is positioned at the upper side of the spinneret plate (2) and is communicated with the spinneret plate, the material injection hole (4) and a cavity (5) which are communicated with each other are arranged on the splitter plate (1), the cavity (5) is communicated with at least two splitter branches (6), and a long groove (7) is arranged, the outlet of each branch flow branch (6) is communicated with the long groove (7) and corresponds to the position of the long groove (7), a vertical flow passage (9) communicated with the long groove (7) is arranged in the spinneret plate (2), a connecting cavity (10) communicated with the vertical flow passage (9) is also arranged in the spinneret plate (2), the bottom of the connecting cavity (10) is provided with a row of micropores (11) arranged along the length direction of the connecting cavity, the diameter of each micropore (11) is smaller than that of the vertical flow passage (9), the bottom of the spinneret plate (2) is provided with a first inclined surface (12), the inner side of the air plate (3) is provided with a second inclined surface (13) matched with the first inclined surface (12), an air blowing gap (14) is formed between the first inclined surface (12) and the second inclined surface (13), the outer side surface of the air plate (3) is provided with at least two air inlets (15), and the air cavity (16) arranged along the length direction of the air plate (3) is arranged in the air plate, the air inlets (15) are communicated with the air cavities (16), air outlets (17) are further formed in the upper side of the air cavities (16), air grooves (18) arranged along the length direction of the spinneret plate (2) are formed in the bottom of the spinneret plate (2) corresponding to the positions of the air outlets (17), the air grooves (18) are communicated with the air blowing gaps (14), and air plate gaskets (19) are further mounted at the positions of the two ends of the air plate (3).
2. A meltblowing die for producing meltblown fabric according to claim 1 wherein: the flow distribution plate (1) is provided with a pressure gauge (20), and a joint of the pressure gauge (20) is communicated with the cavity (5).
3. A meltblowing die for producing meltblown fabric according to claim 1 wherein: connecting pipe (8) are all installed at the both ends of spinneret (2), are equipped with control valve (21) on connecting pipe (8), control valve (21) pass through connecting pipe (8) and be connected chamber (10) looks UNICOM.
4. A meltblowing die for producing meltblown fabric according to claim 1 wherein: install connecting plate (22) on the same side of flow distribution plate (1), spinneret (2) and gas board (3), the upper end and flow distribution plate (1) fixed connection of connecting plate (22), first screw (23) and through-hole (24) have been seted up at the lower extreme of connecting plate (22), position corresponding to through-hole (24), set up second screw (25) that correspond with it on the side of gas board (3), first bolt (26) of first screw (23) fit-in installation, second bolt (27) are installed in second screw (25) fit-in, rotate first bolt (26) and enable first inclined plane (12) of gas board (3) and be close to second inclined plane (13), rotate second bolt (27) and enable first inclined plane (12) of gas board (3) and keep away from second inclined plane (13).
5. A meltblowing die for producing meltblown fabric according to claim 1 wherein: corresponding to the position of the shunt branch (6), a flow adjusting bolt (28) is arranged on the shunt plate (1), and one end of the flow adjusting bolt (28) can extend into the shunt branch (6).
6. A meltblowing die for producing meltblown fabric according to claim 1 wherein: the flow distribution plate (1) is composed of two symmetrical templates, and a material injection hole (4), a cavity (5), a flow distribution branch (6) and a long groove (7) are formed between the two templates.
7. A meltblowing die for producing meltblown fabric according to claim 1 wherein: eight branch roads (6) that communicate with cavity (5) totally, every branch road (6) of dividing all is equipped with three grades of branches, and every grade is divided equally into two branch roads, and the branch outlet with rectangular groove (7) looks UNICOM totally sixty four.
8. A meltblowing die for producing meltblown fabric according to claim 1 wherein: the connecting cavities (10) are distributed in a downward-shrinking ladder shape, and the diameters of the connecting cavities (10) are gradually reduced from top to bottom.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020207629176 | 2020-05-11 | ||
| CN202020762917 | 2020-05-11 |
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| Publication Number | Publication Date |
|---|---|
| CN212388147U true CN212388147U (en) | 2021-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020884056.9U Active CN212388147U (en) | 2020-05-11 | 2020-05-21 | Melt-blowing die head for producing melt-blown cloth |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112877790A (en) * | 2021-03-10 | 2021-06-01 | 广元水木新材料科技有限公司 | Spinning machine |
| CN115537946A (en) * | 2022-11-07 | 2022-12-30 | 仙桃永利医疗用品有限公司 | Non-woven fabric melt-blowing device |
-
2020
- 2020-05-21 CN CN202020884056.9U patent/CN212388147U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112877790A (en) * | 2021-03-10 | 2021-06-01 | 广元水木新材料科技有限公司 | Spinning machine |
| CN115537946A (en) * | 2022-11-07 | 2022-12-30 | 仙桃永利医疗用品有限公司 | Non-woven fabric melt-blowing device |
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