CN111575911A - Clothes hanger formula non-woven fabrics melt-blown mould - Google Patents
Clothes hanger formula non-woven fabrics melt-blown mould Download PDFInfo
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- CN111575911A CN111575911A CN202010452623.8A CN202010452623A CN111575911A CN 111575911 A CN111575911 A CN 111575911A CN 202010452623 A CN202010452623 A CN 202010452623A CN 111575911 A CN111575911 A CN 111575911A
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- die head
- air
- spinneret
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
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- 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
- D01D1/00—Treatment of filament-forming or like material
- D01D1/06—Feeding liquid to the spinning head
- D01D1/09—Control of pressure, temperature or feeding rate
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The invention discloses a clothes hanger type non-woven fabric melt-blowing die which comprises a die head, a spinneret plate and an air knife, wherein the die head is horizontally arranged along the length direction of the die head in a transverse mode, and the spinneret plate is fixedly installed at the bottom of the die head. The die head is internally provided with a feeding cavity with a coat hanger type structure, and the top of the die head is provided with a sprue bush which is connected and communicated with the middle position of the upper end of the feeding cavity. The spinneret plate is internally provided with a storage tank, the top of the storage tank is provided with a shunting filter assembly, and the storage tank is communicated with the feeding cavity through the shunting filter assembly. The bottom of the spinneret plate is provided with a plurality of spinneret orifices which are transversely and linearly distributed, and the storage tank is communicated with the outside through each spinneret orifice. The air knives are two and are symmetrically arranged on the front side and the rear side of the spinneret orifice. The die head of the invention adopts the feeding cavity with the coat hanger type structure inside, increases the feeding resistance in the middle part, enables the material to uniformly diffuse to two sides, realizes uniform distribution and pressure balance in the bottom groove, realizes uniform flow velocity of each spinneret orifice, and ensures uniform thickness and high quality of the formed non-woven fabric.
Description
Technical Field
The invention relates to the technical field of die manufacturing, in particular to a clothes hanger type non-woven fabric melt-blowing die.
Background
The non-woven fabric is also called non-woven fabric, is formed from oriented or random fibre, and is made up by using polypropylene granules as raw material, and has the characteristics of moisture-proofing, air-permeability, flexibility, light weight, no combustion-supporting and can be cyclically reused. The non-woven fabric has no warp and weft, is light and easy to shape, is very convenient to cut and sew, and becomes a preferred material for producing the mask. The non-woven fabrics adopts the melt-blown mould to produce, and the polypropylene aggregate makes the hot-fluid in the injection molding machine, and the spinneret orifice through the melt-blown mould injects downwards, draws out the silk thread simultaneously under the effect of both sides wind power, because the non-woven fabrics has certain width, needs thousands of spinneret orifices to be linear and arranges, and the cavity of the spinneret plate of the melt-blown mould is the rectangular form that corresponds with the spinneret orifice.
The gate sleeve of the existing melt-blowing die is arranged in the middle, hot fluid with certain pressure is injected into a cavity of a spinneret plate downwards from the middle, so that the pressure in the cavity of the spinneret plate is unbalanced, the injection pressure of spinneret orifices in the middle is high, the injection pressure of spinneret orifices on two sides is low, the produced non-woven fabric is thin in the middle and on two sides, and the quality of the product is poor. Therefore, further improvements are desired in the art.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a clothes hanger type non-woven fabric melt-blowing die, which solves the problems of non-uniform thickness and poor quality of non-woven fabrics caused by inconsistent jet pressure of each spinneret orifice of the conventional melt-blowing die.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a clothes hanger formula non-woven fabrics melt-blown mould, includes die head, spinneret and air knife, the die head is the rectangle structure, and transversely arranges along its length direction horizontally, and spinneret fixed mounting is in the bottom of die head.
The die head is internally provided with a feeding cavity with a coat hanger type structure, a sprue bush is arranged above the feeding cavity, and the sprue bush is communicated with the middle position of the upper end of the feeding cavity.
The spinneret plate is internally provided with a storage tank, the top of the storage tank is provided with a shunting filter assembly, and the storage tank is communicated with the feeding cavity through the shunting filter assembly.
The bottom of the spinneret plate is provided with a plurality of spinneret orifices which are transversely and linearly distributed, and the storage tank is communicated with the outside through each spinneret orifice.
The air knives are two and located below the spinneret plate, and the two air knives are symmetrically arranged on the front side and the rear side of the spinneret hole.
Furthermore, the feeding cavity comprises a main feeding channel, a flow dividing channel and a bottom groove, the main feeding channel is vertically arranged at the upper part of the die head, and the upper end of the main feeding channel is communicated with the feeding hole.
The two diversion channels are symmetrically arranged on the left side and the right side below the main feeding channel in an inclined mode, and the lower end of the main feeding channel is communicated with the corresponding end of each diversion channel.
The bottom groove is positioned below the flow distribution channels, and the lower ends of the two flow distribution channels are communicated with the bottom groove through the narrow slots.
Further, the bottom groove is positioned at the bottom of the die head and transversely extends to the position corresponding to the end part of the flow distribution channel along the length direction of the die head.
The slot is vertically arranged, the upper end of the slot is communicated with the bottoms of the two diversion channels, the lower end of the slot is communicated with the top of the bottom groove, and two sides of the slot respectively extend to one end, far away from the main feeding channel, of the diversion channel.
Furthermore, the cross section of the shunting channel is in a water drop shape with a wide upper part and a narrow lower part, and the upper end of the slot is in a flaring structure which opens front and back and is connected with the bottom of the shunting channel in a smooth transition way.
The cross section of the branch channel is sequentially reduced from one end connected with the main feeding channel to the end far away from the main feeding channel.
Furthermore, the die head comprises two die head bodies which are symmetrical front and back and are fixedly connected into a whole through bolts, and the bottom edge of the two die head bodies extends downwards and wraps the side wall of the spinneret plate.
The side walls, close to each other, of the two die head bodies are provided with a main feeding groove, a splitter box and an inner concave area, and the main feeding grooves in the two die head bodies are matched to form the main feeding channel.
The shunting grooves on the two die head bodies are matched to form the shunting channels, and the concave areas on the two die head bodies are matched to form the slots.
Further, the stock chest is the open long form cavity in top, and just right with feeding cavity bottom, reposition of redundant personnel filtering component fixed mounting is at the top of stock chest.
The shunting filter assembly comprises a filter screen and a filter screen supporting seat, the filter screen supporting seat is fixed on a spinneret plate in an embedded mode, and the filter screen is arranged on the upper surface of the filter screen supporting seat.
Evenly be provided with a plurality of reposition of redundant personnel hole on the filter screen supporting seat, each reposition of redundant personnel hole is the vertical through-hole of seting up.
Furthermore, the bottom of the spinneret plate is provided with a spray hole seat which is downward convex relative to the lower surface of the spinneret plate and transversely extends, and the spray hole seat is of a uniform cross-section structure.
The cross section of the spinneret orifice seat is an isosceles trapezoid with a wide upper part and a narrow lower part, all the spinneret orifices are sequentially arranged at equal intervals along the axial direction of the spinneret orifice seat, and the diameters of the spinneret orifices are 0.15 mm-0.35 mm.
Further, the die head is located the front and back both sides symmetrical arrangement of feeding cavity and is responsible for two air intakes, and every air intake is responsible for the outside and evenly is equipped with a plurality of air intake branch pipes along its length direction in proper order.
Furthermore, the air knife is of a long strip structure, the top of the air knife is provided with air cavities arranged along the length direction of the air knife, and each air cavity is communicated with the air inlet main pipe on the same side of the air cavity.
One side of the air knife close to the spray hole seat is an inclined plane, the front side and the rear side of the spray hole seat are respectively matched with the air knives on the corresponding sides to form air outlet gaps, and air flow in the air cavity can be blown out through the air outlet gaps.
Further, the spinneret plate is of a steel rectangular flat plate structure.
By adopting the technical scheme, the invention has the beneficial technical effects that: the die head of the invention adopts the feeding cavity with the coat hanger type structure inside, increases the feeding resistance in the middle part, enables the material to uniformly diffuse to two sides, realizes uniform distribution and pressure balance in the bottom groove, realizes uniform flow velocity of each spinneret orifice, and ensures uniform thickness of the formed non-woven fabric and high product quality.
Drawings
FIG. 1 is a schematic view of the structural principle of the coat hanger type nonwoven melt-blown mold of the present invention.
FIG. 2 is a left side view structural diagram of a main body part of the clothes hanger type non-woven fabric melt-blowing die of the invention.
Fig. 3 is a schematic diagram of a portion of the invention of fig. 1 showing a spinneret.
FIG. 4 is a schematic structural view of another portion of the invention of FIG. 1, showing the die body.
FIG. 5 is a schematic top view of a nonwoven fabric meltblown die of the present invention.
Fig. 6 is a cross-sectional view of the invention a-a of fig. 5 in the viewing direction.
Fig. 7 is a cross-sectional view of the invention B-B of fig. 5 in the viewing direction.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
with reference to fig. 1 to 7, a clothes hanger formula non-woven fabrics melt-blown mould, includes die head 1, spinneret 2 and air knife 3, die head 1 is the rectangle structure, and die head 1 arranges along its length direction horizontal level, spinneret 2 is steel rectangle slab construction, and spinneret 2 is located the below of die head 1, and just passes through bolt fixed mounting in the bottom of die head 1. The die head 1 is internally provided with a feeding cavity of a coat hanger type structure, a sprue bush 11 is arranged above the die head 1, the sprue bush 11 is communicated with the middle position of the upper end of the feeding cavity, and the sprue bush 11 is preferably fixedly connected with the top of the die head 1 through a bolt in a vertical mode.
The feeding cavity comprises a main feeding channel 12, a diversion channel 13 and a bottom groove 14, wherein the main feeding channel 12 is vertically arranged at the upper part of the die head 1, and the upper end of the main feeding channel is communicated with the sprue bush 11. The number of the branch channels 13 is two, the two branch channels 13 are symmetrically arranged on the left side and the right side below the main feeding channel 12 in an inclined mode, one end of each branch channel 13 connected with the main feeding channel 12 is higher than one end of each branch channel 13 far away from the main feeding channel 12, and the lower end of each main feeding channel 12 is connected and communicated with the corresponding end of each branch channel 13.
The bottom groove 14 is located below the flow dividing channels 13, the lower ends of the two flow dividing channels 13 are communicated with the bottom groove 14 through the narrow slots 15, and the vertical height of the narrow slots 15 is gradually reduced from the middle to two sides. The melt-blown mould disclosed by the invention is connected with an injection molding machine, polypropylene granules are heated to about 300 ℃ in the injection molding machine to form hot fluid, the hot fluid with certain pressure enters a main feeding channel 12 of a die head 1 through a sprue bush 11 and is conveyed downwards, and the hot fluid in the main feeding channel 12 is divided into two branch channels 13.
The cross section of the flow dividing channel 13 is in a drop shape with a wide upper part and a narrow lower part, and the upper end of the slot 15 is in a flaring structure which opens front and back and is connected with the bottom of the flow dividing channel 13 in a smooth transition way. The cross-section of the branch flow channel 13 decreases from the end connected to the main feed channel 12 to the end away from the main feed channel 12. The bottom groove 14 is located at the bottom of the die 1 and extends transversely along the length of the die 1 to a position corresponding to the end of the flow dividing channel 13. The slot 15 is vertically formed, the upper end of the slot 15 is communicated with the bottoms of the two diversion channels 13, the lower end of the slot 15 is communicated with the top of the bottom groove 14, and two sides of the slot 15 respectively extend to one end, far away from the main feeding channel 12, of each diversion channel 13.
The die head 1 comprises two die head bodies 8, the two die head bodies 8 are symmetrical front and back, two ends of the two die head bodies are respectively connected into a whole through bolt fixing and sealing, and the bottom edge of the die head 1 extends downwards and wraps the side wall of the spinneret plate 2. The side walls of the two die head bodies 8, which are close to each other, are provided with main feeding grooves, splitter boxes and concave areas, and the main feeding grooves 121 on the two die head bodies are matched to form the main feeding channel 12. The splitter channels 13 are formed by cooperation of splitter grooves on the two die bodies 8, and the slots 15 are formed by cooperation of concave areas on the two die bodies.
In the process that the hot fluid in the two branch channels 13 travels towards two sides, the hot fluid simultaneously enters the slot 15 downwards and moves downwards along the slot 15, the height of the middle of the slot 15 is larger than the strokes of the two sides of the slot 15, the hot fluid is uniformly conveyed downwards along the length direction of the die head 1 under the action of pressure, the reason is that the resistance of the position with the longer vertical height of the slot 15 to the hot fluid is larger, the conveying of the hot fluid towards two sides is facilitated, the hot fluid enters the bottom groove 14 from the lower end of the slot 15, and the pressure of the hot fluid is uniform at each position in the bottom groove 14 along the length direction of the hot fluid.
The spinneret plate 2 is internally provided with a storage tank 21, the top of the storage tank 21 is provided with a shunting filter assembly, and the storage tank 21 is communicated with the feeding cavity through the shunting filter assembly. The stock chest 21 is the open long strip form cavity in top, and just right with feeding cavity bottom, reposition of redundant personnel filtering component fixed mounting is at the top of stock chest 21.
The reposition of redundant personnel filter assembly includes filter screen 4 and filter screen supporting seat 5, and filter screen supporting seat 5 is fixed on spinneret 2 with embedded mode, filter screen 4 sets up on the upper surface of filter screen supporting seat 5, evenly arranged a plurality of on the filter screen 4 and crossed the filtration pore, the effect of filter screen 4 is its filtering action to the hot-fluid, avoids the hot-fluid to block up the spinneret orifice that is located spinneret 2.
Evenly be provided with a plurality of diffluent hole 51 on the filter screen supporting seat 5, each diffluent hole 51 is the vertical through-hole of seting up, filter screen supporting seat 5's effect is to playing supporting role to filter screen 4, avoids filter screen 4 to warp under the pressure effect of hot-fluid. The plurality of the branch holes 51 are uniformly arranged on the filter screen support base 5, the hot fluid in the bottom groove 14 enters the material storage tank 21 through the branch holes 51, and the pressure of the hot fluid in the bottom groove 14 is uniform, so that the pressure of the hot fluid in the material storage tank 21 is balanced at each position along the length direction of the hot fluid after the hot fluid enters the material storage tank 21 through the evenly distributed branch holes 51.
The bottom of the spinneret plate 2 is provided with a plurality of spinneret orifices which are transversely and linearly distributed, and the storage tank 21 is communicated with the outside through each spinneret orifice. Specifically, the bottom of the spinneret plate 2 has a nozzle hole seat 22 protruding downward and extending transversely relative to the lower surface thereof, the top of the nozzle hole seat 22 and the spinneret plate 2 are of an integral structure, and the nozzle hole seat 22 has a uniform cross-sectional structure. The cross section of the orifice seat 22 is an isosceles trapezoid with a wide upper part and a narrow lower part, all the orifices are sequentially distributed at equal intervals along the axis direction of the orifice seat 22, all the orifices are vertically arranged in parallel, and the diameter of each orifice is 0.25 mm. The hot fluid in the storage tank 21 is discharged downwards through each spinneret orifice, and the discharge pressure and the flow rate of each spinneret orifice are equal because the pressure of the hot fluid in the storage tank 21 is uniform.
Two air inlet main pipes 6 are symmetrically arranged on the front side and the rear side of the feeding cavity of the die head 1, a plurality of air inlet branch pipes 61 are uniformly arranged on the outer side of each air inlet main pipe 6 along the length direction of the air inlet main pipe in sequence, each air inlet main pipe 6 is a section of uniform-section air duct arranged along the length direction of the die head 1, and the air inlet branch pipes 61 are longitudinally arranged in parallel. Each die head body 8 has a die head air groove 63 formed in the bottom along the length direction thereof, the top of the die head air groove 63 is communicated with the main air inlet pipe 6 above the die head air groove through a group of die head air channels, and each group of die head air channels comprises a plurality of die head air channels 64 which are sequentially arranged at equal intervals along the length direction of the die head air groove 63. The front side and the rear side of the die head 1 are respectively provided with air path adapters 37 which are equal in number and correspond to the air inlet branch pipes 61 one by one, and the air path adapters 37 are installed on the side wall of the die head 3 through fixing blocks 10. One end of each air inlet branch pipe 61 is connected with an air supply system through a corresponding air path adapter 37, the other end of each air inlet branch pipe is communicated with the corresponding air inlet main pipe 6, an air supply system arranged on the melt-blowing machine blows air into the air inlet main pipe 6 through the air inlet branch pipes 61, the air inlet main pipe 6 has certain pressure stabilization and buffering functions, and air in the air inlet main pipe 6 enters the die head air groove 63 through the die head air channels 64 which are uniformly arranged. The air supply system is in the prior art, and can adopt the existing air compressor.
The two air knives 3 are fixedly arranged at the bottom of the spinneret plate 2 in an embedded mode, and the two air knives 3 are symmetrically arranged at the front side and the rear side of all spinneret holes. The air knife 3 is of a long strip structure, an air cavity 31 formed in the length direction of the air knife 3 is formed in the top of the air knife 3, the cross section of the air cavity 31 is U-shaped, the left end and the right end of the air cavity 31 are of an open structure, the air knife 3 is located on one side, close to a spinneret hole, of the air cavity 31 and matched with the bottom of the spinneret plate 2 to form a long strip-shaped air passing gap 32, the air cavities 31 are communicated with the air inlet main pipe 6 on the same side, and the air cavities 31 transversely extend to the left end and the right end.
Specifically, two spinneret plate air grooves 23 are symmetrically formed in the front side and the rear side of the tops of the two sides of the spinneret plate 2, each spinneret plate air groove 23 is matched with the die head air groove 63 above the spinneret plate air groove to form a pressure stabilizing cavity, a group of spinneret plate air channels are formed in each spinneret plate air groove 23, each group of spinneret plate air channels comprises a plurality of spinneret plate air channels 24 which are sequentially arranged at equal intervals along the length direction of the spinneret plate air grooves 23, each spinneret plate air groove 23 is communicated with the air cavity 31 on the same side through the spinneret plate air channel 24 below the spinneret plate air groove, and the die head air grooves 63 supply air to the air cavities 31 of the air knives 3 on the same.
The left end and the right end of the die head 1 are respectively fixedly provided with a cover plate 91, a gasket 92 is arranged between the cover plate 91 and the die head 1, the cover plate 91 and the gasket 92 seal the two ends of the air cavity 31 and the air gap 32, and it is ensured that the air in the air cavity 31 can only be blown out through the air gap. One side of the air knife 3 close to the spray hole seat 22 is an inclined surface, the front side and the rear side of the spray hole seat 22 are respectively matched with the air knife 3 on the corresponding side to form an air outlet gap 7, air in the air cavity 31 is blown out through the air outlet gap 7, and the flow velocity of air flow at each position of the air outlet gap 7 along the length direction of the air knife 3 is balanced and stable.
During operation, the wind in the wind inlet main pipe 6 is provided by each wind inlet branch pipe 61 on the same side, and is buffered and balanced for the first time inside the wind inlet main pipe 6, the wind in the wind inlet main pipe 6 enters the spinneret plate wind groove 23 through the die head wind channel 64 and is matched with the die head wind groove 63 to form the pressure stabilizing cavity 25, the wind is buffered and balanced for the second time in the pressure stabilizing cavity, and then enters the wind cavity 31 at the top of the wind knife 3 through the spinneret plate wind channel 24, after the third buffering and balancing is performed in the wind cavity 31, the wind knife 3 is matched with the bottom of the spinneret plate 2 to form the strip-shaped wind passing gap 32 to blow out, and the flow velocity of each air flow of the wind outlet gap 7 along the length direction of the wind.
In the downward discharging process of the spinneret orifices, hot fluid below the spinneret orifices is drawn into continuous threads by airflows blown out from the air outlet gaps 7 on the front side and the rear side of the spinneret orifices, the forming speed of the threads below each spinneret orifice is consistent, and the thickness of each part of the formed non-woven fabric is uniform.
Parts which are not described in the invention can be realized by adopting or referring to the prior art.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.
Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (10)
1. A clothes hanger type non-woven fabric melt-blowing die comprises a die head, a spinneret plate and an air knife, and is characterized in that the die head is of a rectangular structure and is horizontally arranged along the length direction of the die head in a transverse direction, and the spinneret plate is fixedly arranged at the bottom of the die head;
a feeding cavity of a coat hanger type structure is formed in the die head, a sprue bush is arranged above the die head, and the sprue bush is communicated with the middle position of the upper end of the feeding cavity;
a storage tank is arranged in the spinneret plate, a shunting filter assembly is arranged at the top of the storage tank, and the storage tank is communicated with the feeding cavity through the shunting filter assembly;
the bottom of the spinneret plate is provided with a plurality of spinneret orifices which are transversely and linearly distributed, and the storage tank is communicated with the outside through each spinneret orifice;
the air knives are two and located below the spinneret plate, and the two air knives are symmetrically arranged on the front side and the rear side of the spinneret hole.
2. The clothes hanger type non-woven fabric melt-blowing die according to claim 1, wherein the feeding cavity comprises a main feeding channel, a shunting channel and a bottom groove, the main feeding channel is vertically arranged at the upper part of the die head, and the upper end of the main feeding channel is communicated with the feeding hole;
the two diversion channels are symmetrically arranged on the left side and the right side below the main feeding channel in an inclined mode, and the lower end of the main feeding channel is communicated with the corresponding end of each diversion channel;
the bottom groove is positioned below the flow distribution channels, and the lower ends of the two flow distribution channels are communicated with the bottom groove through the narrow slots.
3. The clothes hanger type non-woven fabric melt-blowing die according to claim 2, wherein the bottom groove is positioned at the bottom of the die head and transversely extends to a position corresponding to the end part of the shunt channel along the length direction of the die head;
the slot is vertically arranged, the upper end of the slot is communicated with the bottoms of the two diversion channels, the lower end of the slot is communicated with the top of the bottom groove, and two sides of the slot respectively extend to one end, far away from the main feeding channel, of the diversion channel.
4. The clothes hanger type non-woven fabric melt-blowing die according to claim 2, wherein the cross section of the shunting channel is in a water drop shape with a wide upper part and a narrow lower part, the upper end of the slot is in a flaring structure with a front opening and a rear opening, and the upper end of the slot is connected with the bottom of the shunting channel in a smooth transition way;
the cross section of the branch channel is sequentially reduced from one end connected with the main feeding channel to the end far away from the main feeding channel.
5. The clothes hanger type non-woven fabric melt-blowing die of claim 1, wherein the die head comprises two die head bodies which are symmetrical in front and back and are fixedly connected into a whole by bolts, and the bottom edge of the two die head bodies extends downwards and wraps the side wall of the spinneret plate;
the side walls of the two die head bodies, which are close to each other, are provided with a main feeding groove, a splitter box and an inner concave area, and the main feeding grooves on the two die head bodies are matched to form the main feeding channel;
the shunting grooves on the two die head bodies are matched to form the shunting channels, and the concave areas on the two die head bodies are matched to form the slots.
6. The clothes hanger type non-woven fabric melt-blowing die according to claim 1, wherein the material storage tank is an elongated cavity with an open top and is opposite to the bottom of the feeding cavity, and the shunting filter assembly is fixedly arranged at the top of the material storage tank;
the shunting filter assembly comprises a filter screen and a filter screen supporting seat, the filter screen supporting seat is fixed on the spinneret plate in an embedded mode, and the filter screen is arranged on the upper surface of the filter screen supporting seat;
evenly be provided with a plurality of reposition of redundant personnel hole on the filter screen supporting seat, each reposition of redundant personnel hole is the vertical through-hole of seting up.
7. The clothes hanger type non-woven fabric melt-blowing die according to claim 1, wherein the bottom of the spinneret plate is provided with a nozzle hole seat which is downwardly convex relative to the lower surface and transversely extends, and the nozzle hole seat is of a uniform cross-section structure;
the cross section of the spinneret orifice seat is an isosceles trapezoid with a wide upper part and a narrow lower part, all the spinneret orifices are sequentially arranged at equal intervals along the axial direction of the spinneret orifice seat, and the diameters of the spinneret orifices are 0.15 mm-0.35 mm.
8. The clothes hanger type non-woven fabric melt-blowing mold according to claim 7, wherein the two main air inlet pipes are symmetrically arranged on the front side and the rear side of the die head located on the feeding cavity, and a plurality of branch air inlet pipes are uniformly arranged on the outer side of each main air inlet pipe in sequence along the length direction of the main air inlet pipe.
9. The clothes hanger type non-woven fabric melt-blowing die according to claim 8, wherein the air knife is of a long strip structure, the top of the air knife is provided with air cavities arranged along the length direction of the air knife, and each air cavity is communicated with the air inlet main pipe on the same side of the air cavity;
one side of the air knife close to the spray hole seat is an inclined plane, the front side and the rear side of the spray hole seat are respectively matched with the air knives on the corresponding sides to form air outlet gaps, and air flow in the air cavity can be blown out through the air outlet gaps.
10. The cradle-type nonwoven melt-blown die of claim 1, wherein the spinneret plate is a steel rectangular plate structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010452623.8A CN111575911A (en) | 2020-05-26 | 2020-05-26 | Clothes hanger formula non-woven fabrics melt-blown mould |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010452623.8A CN111575911A (en) | 2020-05-26 | 2020-05-26 | Clothes hanger formula non-woven fabrics melt-blown mould |
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| CN111575911A true CN111575911A (en) | 2020-08-25 |
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| CN202010452623.8A Pending CN111575911A (en) | 2020-05-26 | 2020-05-26 | Clothes hanger formula non-woven fabrics melt-blown mould |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112501699A (en) * | 2020-11-11 | 2021-03-16 | 杭州浅影文化创意有限公司 | Melt-blown mould |
| CN112877791A (en) * | 2021-01-12 | 2021-06-01 | 浙江精功机器人智能装备有限公司 | Spinneret plate of melt-blowing die |
| CN113373593A (en) * | 2021-07-01 | 2021-09-10 | 佛山市启新模具有限公司 | Melt-blown fabric mould of double row hole shower nozzle |
-
2020
- 2020-05-26 CN CN202010452623.8A patent/CN111575911A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112501699A (en) * | 2020-11-11 | 2021-03-16 | 杭州浅影文化创意有限公司 | Melt-blown mould |
| CN112501699B (en) * | 2020-11-11 | 2022-01-25 | 肇庆市众通无纺布有限公司 | Melt-blown mould |
| CN112877791A (en) * | 2021-01-12 | 2021-06-01 | 浙江精功机器人智能装备有限公司 | Spinneret plate of melt-blowing die |
| CN113373593A (en) * | 2021-07-01 | 2021-09-10 | 佛山市启新模具有限公司 | Melt-blown fabric mould of double row hole shower nozzle |
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