CN212533213U - Spinneret plate structure of melt-blown fabric die head with double rows of nozzles - Google Patents
Spinneret plate structure of melt-blown fabric die head with double rows of nozzles Download PDFInfo
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- CN212533213U CN212533213U CN202021575484.XU CN202021575484U CN212533213U CN 212533213 U CN212533213 U CN 212533213U CN 202021575484 U CN202021575484 U CN 202021575484U CN 212533213 U CN212533213 U CN 212533213U
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Abstract
The utility model relates to a melt-blown fabric die head spinneret plate structure of double-row nozzle, including flow distribution plate, feed plate and apron, the feed plate be rectangular form plate body, be provided with two parallel triangle sand grips at the leading flank of feed plate, cut out a rectangular form plane at the summit of triangle sand grip along length direction, seted up one row on rectangular form plane by a plurality of along the linear arrangement of length direction and run through the spinneret orifice of feed plate, the diameter of spinneret orifice is greater than rectangular form planar width, makes spinneret orifice triangle sand grip both sides wall leave the breach; simultaneously the utility model discloses still improve the structure of the inside runner of spinneret and air flue, adopt the structure of four air flues of group and double fluid passage, the air flue of four group goes out the air slot and distributes both sides about two rows of spinneret, the utility model discloses realize the structure of two rows of spinnerets on a spinneret, it is rational in infrastructure to have, and it is even to spout the silk, and the off-the-shelf characteristics that melt-blown cloth quality is better.
Description
Technical Field
The utility model relates to a spinneret structure specifically is a spout cloth die head spinneret structure that melts of double nozzle.
Background
Because the melt-blown fabric has higher hydrostatic pressure resistance, good air permeability and filtering effect, especially a material compounded with a film has good barrier property, the filtering efficiency on non-oily particles can reach more than 99 percent, when the melt-blown fabric is produced, superfine fibers are sprayed out through a spinning die head to be attached to a transmission belt, the number of the fibers in unit area is increased, the melt-blown fabric is formed, the diameter of the fibers can reach 0.5-10 micrometers, the gaps are more, the structure is fluffy, the crease resistance is good, and the melt-blown fabric can be used in the fields of air, liquid filtering materials, isolating materials, absorbing materials, mask materials, heat-insulating materials, oil absorbing materials, wiping cloth and the like; the quality of melt-blown cloth is good, the design of a spinning die head is crucial, a spinneret plate in the spinning die head is a core component, the existing spinning die heads are all single-row nozzles, the melt-blown cloth produced by the single-row nozzles is contradictory between air permeability and thickness, if thicker thickness is required, more fibers need to be attached in unit time, so that the pores are reduced, and the internal air permeability is reduced; therefore, two groups of spinning die heads are arranged side by side up and down in the prior art, the die heads have certain heights, certain intervals are formed between nozzles of the two groups of die heads, fiber yarns sprayed by the two groups of die heads are attached for a time difference of several seconds, and the fiber yarns attached twice are easily layered due to rapid cooling of the fiber yarns, so that the quality of products is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a double nozzle melt-blown fabric spinneret structure improves the structure of the inside runner of spinneret and air flue, adopts the structure of four air flues of group and double flow, and the air flue of four group goes out the gas tank and distributes both sides about two rows of spinnerets, the utility model discloses realize the structure of two rows of spinnerets on a spinneret, it is rational in infrastructure to have, and it is even to spout the silk, the better characteristics of off-the-shelf melt-blown fabric quality.
The following technical scheme is adopted for achieving the purpose:
the utility model provides a melt-blown coating die head spinneret plate structure of double nozzle which characterized in that: the feeding plate is a strip-shaped plate body, two parallel triangular convex strips are arranged on the front side surface of the feeding plate, a strip-shaped plane is cut at the top of the triangular convex strips along the length direction, a row of spinneret orifices which are arranged in a straight line along the length direction and penetrate through the feeding plate are arranged on the strip-shaped plane, the diameter of each spinneret orifice is larger than the width of the strip-shaped plane, and gaps are reserved on two side walls of the triangular convex strips of the spinneret orifices;
the front side surface of the feeding plate is divided into three areas by two parallel triangular convex strips, four rows of air inlet through holes which are arranged in a straight line are further formed in two sides of the triangular convex strips along the length direction of the feeding plate, the inner air inlet through holes in the two rows in the middle are positioned between the two triangular convex strips, the two rows of outer air inlet through holes in the outer sides are positioned on two sides of the two triangular convex strips, the inner air inlet through holes and the outer air inlet through holes penetrate through the feeding plate, cover plates are further fixed in the three areas, air grooves are formed in the positions, corresponding to the inner air inlet through holes or the outer air inlet through holes, of the inner sides of the cover plates along the length direction of the feeding plate, air guide gaps are reserved between the side walls of the cover plates and the side walls of the triangular convex strips, a spinning gap is reserved between the adjacent cover plates, the spinning gap corresponds to the verte;
the rear side face of the feeding plate is provided with a groove along the length direction of the feeding plate, a splitter plate is arranged in the groove, a material cavity is formed between the inner side of the splitter plate and the groove, the splitter plate is provided with a plurality of air inlets and a plurality of feed holes, the feed holes are communicated with the material cavity, each air inlet is provided with two air outlet ports in the inner side of the splitter plate, wherein the air outlet ports are located on the outer side of the material cavity, the air outlet ports are located in the material cavity, the air outlet ports are directly in one-to-one correspondence with the outer air inlet through holes, the inner air outlet ports are provided with connecting nozzles, the end parts of the connecting nozzles abut against the inner wall of the material cavity to isolate the air inlet ports from the material cavity, the inner air outlet ports are in one.
And pressing plates are arranged at two ends of the feeding plate and seal the feeding plate, the splitter plate and two ends of the cover plate.
The air inlets are arranged in two rows, each row of air inlets are arranged in a straight line along the length direction of the splitter plate, and the feeding holes are intensively distributed between the two rows of air inlets.
The three areas of the front side surface of the feeding plate are provided with strip-shaped positioning grooves along the length direction, and the three areas are provided with a plurality of screw holes which are arranged in a straight line along the length direction of the feeding plate; the inner side of the cover plate is provided with a strip-shaped boss, and the strip-shaped boss is accommodated in the positioning groove.
A circle of sealing groove is formed in the joint surface of the flow distribution plate and the groove on the outer side of the material cavity, a sealing strip is arranged in the sealing groove, and the sealing groove isolates the gas outlet port from the material cavity; the end of the connecting nozzle is provided with an annular sealing groove, a sealing ring is arranged in the annular sealing groove, the connecting nozzle is abutted to the inner wall of the material cavity, and the sealing ring plays a role in isolating the air supply channel and the feeding flow channel.
The utility model discloses the port setting of giving vent to anger is in the material intracavity, and support material intracavity wall and interior air inlet through hole through the connector nozzle and be connected the intercommunication, and reach and keep apart with the pay-off runner, realize two big rows of spinneret orifice bilateral symmetry and spout the yarn air flue, narrow down the rectangular form plane width in triangle sand grip top simultaneously, be less than the diameter of spinneret orifice, leave the breach at triangle sand grip both sides wall like this, under the high velocity air's in both sides air guide clearance effect, thereby the cellosilk of spinneret orifice constantly rocks along with the air current, it is more equal that the shaping melts the cloth silk more finely to adhere to on the conveyer belt at last like this, and two rows spout the yarn also intervals very nearly, the layering phenomenon can not appear in the shaping, it is enough to produce out to melt the cloth thickness of.
Drawings
Fig. 1 is a schematic structural diagram (one) of the present invention;
fig. 2 is a schematic structural diagram (ii) of the present invention;
fig. 3 is an exploded view of the present invention (a);
fig. 4 is a schematic exploded view (ii) of the present invention;
FIG. 5 is an enlarged view of the point A in FIG. 4;
fig. 6 is a schematic structural view of one side of the flow distribution plate of the present invention;
FIG. 7 is a sectional view taken along line B-B of FIG. 6;
FIG. 8 is a cross-sectional view taken along line C-C of FIG. 6;
fig. 9 is an enlarged schematic view of fig. 7 at D.
Detailed Description
As shown in fig. 1-9, a spinneret plate structure of a melt-blowing cloth die head with double rows of nozzles is characterized in that: the material feeding plate is a strip-shaped plate body, two parallel triangular convex strips 21 are arranged on the front side surface of the material feeding plate 2, a strip-shaped plane 22 is cut at the top point of the triangular convex strips 21 along the length direction, a row of spinneret orifices 23 which are arranged in a straight line along the length direction and penetrate through the material feeding plate are arranged on the strip-shaped plane 22, the diameter of each spinneret orifice 23 is 0.1-0.5 mm, and the diameter of each spinneret orifice 23 is larger than the width of the strip-shaped plane 22, so that gaps 24 are reserved on two side walls of the triangular convex strips of the spinneret orifices 23; the front side surface of the feeding plate 2 is divided into three areas by two parallel triangular convex strips 21, two sides of the triangular convex strips 21 are also provided with four rows of air inlet through holes arranged in a straight line along the length direction of the feeding plate, the middle two rows of inner air inlet through holes 51 are positioned between the two triangular convex strips 21, the outer two rows of outer air inlet through holes 52 are positioned at two sides of the two triangular convex strips 21, the inner air inlet through holes 51 and the outer air inlet through holes 52 penetrate through the feeding plate 2, the three areas are also fixedly provided with a cover plate 3, air grooves 31 are arranged at the positions corresponding to the inner air inlet through holes 51 or the outer air inlet through holes 52 at the inner side of the cover plate 3 along the length direction of the feeding plate, air guide gaps 32 are reserved between the side walls of the cover plate 3 and the side walls of the triangular convex strips 21, a spinning gap 33 is reserved between the adjacent cover plates, the spinning gap 33 corresponds to the top surfaces of the triangular convex strips 21, the width of the spinning, the air inlet through hole, the air groove 31, the air guide gap 32 and the spinning gap 33 are communicated with each other to form an air passage; a groove 25 is formed in the rear side surface of the feed plate 2 along the length direction of the feed plate, a splitter plate 1 is arranged in the groove 25, a material cavity 26 is formed between the inner side of the splitter plate 1 and the groove 25, a plurality of air inlet holes 11 and feed holes 12 are formed in the splitter plate 1, the feed holes 12 are communicated with the material cavity 26, each air inlet hole 11 is provided with two air outlet ports in the inner side of the splitter plate 1, wherein an air outlet port 112 is positioned on the outer side of the material cavity 26, an inner air outlet port 111 is positioned in the material cavity 26, the air outlet ports 112 are directly in one-to-one correspondence with the outer air inlet through holes 52, a connecting nozzle 113 is arranged at the inner air outlet port 111, the end part of the connecting nozzle 113 abuts against the inner wall of the material cavity 26 to isolate the air inlet holes 11 from the material cavity 26, the inner air outlet ports 111 are in one-to; and pressing plates 4 are further arranged at two ends of the feeding plate 2, and the pressing plates 4 seal two ends of the feeding plate 2, the splitter plate 1 and the cover plate 3.
The air inlets 11 are arranged in two rows, the air inlets 11 in each row are arranged in a straight line along the length direction of the splitter plate 1, and the feed holes 12 are intensively distributed between the air inlets 11 in the two rows; a circle of sealing groove 114 is formed in the outer side of the material cavity on the joint surface of the flow distribution plate 1 and the groove 25, and a sealing strip is arranged on the sealing groove 114 and isolates the gas outlet port 112 from the material cavity 26; the end of the connecting nozzle 113 is provided with an annular sealing groove 115, a sealing ring is arranged in the annular sealing groove 115, the connecting nozzle 113 abuts against the inner wall of the material cavity 26, and the sealing ring plays a role in isolating the air feeding channel and the feeding flow channel.
The three areas of the front side surface of the feeding plate 2 are provided with strip-shaped positioning grooves 27 along the length direction, and the three areas are provided with a plurality of screw holes which are arranged in a straight line along the length direction of the feeding plate 2; the inner side of the cover plate 3 is provided with a strip-shaped boss 35, and the strip-shaped boss 35 is accommodated in the positioning groove 27.
When the utility model works, the plastic raw material in a molten state enters the material cavity 26 from the feed hole 12 under the action of pressure, and the plastic raw material in the material cavity is extruded to the two rows of spinneret orifices 23; high-pressure gas in the other direction is divided into four groups after passing through the gas inlet holes 11, high-speed gas flow is formed at two sides of the triangular raised lines after passing through the internal gas passages, and gaps 24 are reserved on two side walls of the triangular raised lines of the spinneret holes 23 because the diameter of the spinneret holes 23 is larger than the width of the long strip-shaped plane 22; when the plastic raw material in a molten state does not exit the spinneret orifice 23, the notches 24 on the two sides are atomized into filaments with thinner diameters under the action of high-speed airflow, and the filaments are sprayed out from the spinneret slit 33, and finally, the melt-blown cloth is formed on the attached medium.
The utility model discloses the port setting of giving vent to anger is in the material intracavity, and support material intracavity wall and interior air inlet through hole through the connector link and be connected the intercommunication, and reach and keep apart with the pay-off runner, realize two big rows of spinneret orifice bilateral symmetry and spout the yarn air flue, narrow down the rectangular form plane width in triangle sand grip top simultaneously, be less than the diameter of spinneret orifice, leave the breach at triangle sand grip both sides wall like this, under the high velocity air's in both sides air guide clearance effect, thereby the cellosilk of spinneret orifice constantly rocks along with the air current, it is more all that the shaping melt-blown fabric is more subdivided to adhere to on the conveyer belt at last like this, and two rows are spouted also the interval very nearly, the phenomenon of layering can not appear after adhering to the cooling, it is enough to produce out melt-blown fabric.
Claims (7)
1. The utility model provides a melt-blown coating die head spinneret plate structure of double nozzle which characterized in that: the device comprises a splitter plate (1), a feeding plate (2) and a cover plate (3), wherein the feeding plate (2) is a long strip-shaped plate body, two parallel triangular raised lines (21) are arranged on the front side surface of the feeding plate (2), a long strip-shaped plane (22) is cut at the top point of the triangular raised lines (21) along the length direction, a row of spinneret orifices (23) which are arranged in a straight line along the length direction and penetrate through the feeding plate are arranged on the long strip-shaped plane (22), the diameter of each spinneret orifice (23) is larger than the width of the long strip-shaped plane (22), and gaps (24) are reserved on two side walls of the triangular raised lines of each spinneret orifice (23);
the front side surface of the feeding plate (2) is divided into three areas by two parallel triangular convex strips (21), two sides of the triangular convex strips (21) are also provided with four rows of air inlet through holes which are arranged in a straight line along the length direction of the feeding plate, two middle rows of inner air inlet through holes (51) are positioned between the two triangular convex strips (21), two outer rows of outer air inlet through holes (52) are positioned at two sides of the two triangular convex strips (21), the inner air inlet through holes (51) and the outer air inlet through holes (52) penetrate through the feeding plate (2), cover plates (3) are further fixed in the three areas, air grooves (31) are arranged on the inner sides of the cover plates (3) corresponding to the inner air inlet through holes (51) or the outer air inlet through holes (52) along the length direction of the feeding plate, air guide gaps (32) are left between the side walls of the cover plates (3) and the side walls of the triangular convex strips (21), and a spinning gap (33) is, the spinning gaps (33) correspond to the top surfaces of the triangular convex strips (21), and the air inlet through holes, the air grooves (31), the air guide gaps (32) and the spinning gaps (33) are communicated with each other to form air passages;
the rear side surface of the feeding plate (2) is provided with a groove (25) along the length direction of the feeding plate, the groove (25) is internally provided with a splitter plate (1), a material cavity (26) is formed between the inner side of the splitter plate (1) and the groove (25), the splitter plate (1) is provided with a plurality of air inlets (11) and a feeding hole (12), the feeding hole (12) is communicated with the material cavity (26), each air inlet (11) is provided with two air outlet ports on the inner side of the splitter plate (1), wherein the air outlet port (112) is positioned on the outer side of the material cavity (26), the inner air outlet port (111) is positioned in the material cavity (26), the air outlet ports (112) are directly in one-to-one correspondence with the outer air inlet through holes (52), the inner air outlet ports (111) are provided with connecting nozzles (113), the end parts of the connecting nozzles (113) are abutted against the inner wall of the material cavity (26) to isolate the air inlets (11, and the inner air outlet ports (111) are in one-to-one correspondence with the inner air inlet through holes (51), and the material cavities (26) are communicated with the spinneret orifices (23).
2. The spinneret plate structure of the melt-blowing die head of the double-row nozzle as claimed in claim 1, wherein: the two ends of the feeding plate (2) are also provided with pressing plates (4), and the two ends of the feeding plate (2), the splitter plate (1) and the cover plate (3) are sealed by the pressing plates (4).
3. The spinneret plate structure of a double row nozzle meltblown die according to claim 1 or 2, wherein: the air inlets (11) are arranged in two rows, the air inlets (11) in each row are arranged in a straight line along the length direction of the splitter plate (1), and the feeding holes (12) are intensively distributed between the two rows of the air inlets (11).
4. The spinneret plate structure of the melt-blowing die head of the double-row nozzle as claimed in claim 3, wherein: a circle of sealing groove (114) is formed in the joint surface of the flow distribution plate (1) and the groove (25) on the outer side of the material cavity, a sealing strip is arranged on the sealing groove (114), and the sealing strip isolates the gas outlet port (112) from the material cavity (26); the end part of the connecting nozzle (113) is provided with an annular sealing groove (115), a sealing ring is arranged in the annular sealing groove (115), the connecting nozzle (113) is abutted against the inner wall of the material cavity (26), and the sealing ring plays a role in isolating the air feeding channel and the feeding flow channel.
5. The spinneret plate structure of the melt-blowing die head of the double-row nozzle as claimed in claim 1, wherein: the three areas of the front side surface of the feeding plate (2) are provided with strip-shaped positioning grooves (27) along the length direction, and the three areas are provided with a plurality of screw holes which are arranged in a straight line along the length direction of the feeding plate (2); the inner side of the cover plate (3) is provided with a strip-shaped boss (35), and the strip-shaped boss (35) is accommodated in the positioning groove (27).
6. The spinneret plate structure of the melt-blowing die head of the double-row nozzle as claimed in claim 1, wherein: the diameter of the spinneret orifice (23) is 0.1 to 0.5 mm.
7. The spinneret plate structure of the melt-blowing die head of the double-row nozzle as claimed in claim 6, wherein: the width of the spinning gap (33) is slightly larger than the diameter of the spinning hole, and the width of the spinning gap (33) is between 0.5 and 1.2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021575484.XU CN212533213U (en) | 2020-08-01 | 2020-08-01 | Spinneret plate structure of melt-blown fabric die head with double rows of nozzles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021575484.XU CN212533213U (en) | 2020-08-01 | 2020-08-01 | Spinneret plate structure of melt-blown fabric die head with double rows of nozzles |
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| CN212533213U true CN212533213U (en) | 2021-02-12 |
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| CN202021575484.XU Active CN212533213U (en) | 2020-08-01 | 2020-08-01 | Spinneret plate structure of melt-blown fabric die head with double rows of nozzles |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111850707A (en) * | 2020-08-01 | 2020-10-30 | 王海玲 | Spinneret plate structure of melt-blown fabric die head with double rows of nozzles |
| CN114250521A (en) * | 2021-11-24 | 2022-03-29 | 浙江科达包装机械厂 | Processing technology of melt-blown die and melt-blown die |
| CN115029797A (en) * | 2022-05-20 | 2022-09-09 | 山东陆宇非织造材料有限公司 | Clean structure of spinneret is used in meltblown fabric production |
-
2020
- 2020-08-01 CN CN202021575484.XU patent/CN212533213U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111850707A (en) * | 2020-08-01 | 2020-10-30 | 王海玲 | Spinneret plate structure of melt-blown fabric die head with double rows of nozzles |
| CN111850707B (en) * | 2020-08-01 | 2024-05-28 | 王海玲 | Melt-blown cloth die head spinneret plate structure with double rows of nozzles |
| CN114250521A (en) * | 2021-11-24 | 2022-03-29 | 浙江科达包装机械厂 | Processing technology of melt-blown die and melt-blown die |
| CN114250521B (en) * | 2021-11-24 | 2022-11-25 | 浙江科达包装机械厂 | Processing technology of melt-blown die and melt-blown die |
| CN115029797A (en) * | 2022-05-20 | 2022-09-09 | 山东陆宇非织造材料有限公司 | Clean structure of spinneret is used in meltblown fabric production |
| CN115029797B (en) * | 2022-05-20 | 2024-01-23 | 山东陆宇非织造材料有限公司 | Spinneret plate cleaning structure for melt-blown cloth production |
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