CN115387026A - Low-resistance high-filtering melt-blown fabric production system and production process thereof - Google Patents
Low-resistance high-filtering melt-blown fabric production system and production process thereof Download PDFInfo
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- CN115387026A CN115387026A CN202211110115.7A CN202211110115A CN115387026A CN 115387026 A CN115387026 A CN 115387026A CN 202211110115 A CN202211110115 A CN 202211110115A CN 115387026 A CN115387026 A CN 115387026A
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- 239000004744 fabric Substances 0.000 title claims abstract description 43
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 37
- 238000001914 filtration Methods 0.000 title claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 71
- 238000007664 blowing Methods 0.000 claims abstract description 38
- 238000002156 mixing Methods 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims description 53
- 239000000835 fiber Substances 0.000 claims description 30
- 238000009987 spinning Methods 0.000 claims description 30
- 239000000155 melt Substances 0.000 claims description 22
- 230000000712 assembly Effects 0.000 claims description 20
- 238000000429 assembly Methods 0.000 claims description 20
- 238000006073 displacement reaction Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 15
- 238000003780 insertion Methods 0.000 claims description 13
- 230000037431 insertion Effects 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- 238000005491 wire drawing Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 5
- 230000007306 turnover Effects 0.000 description 5
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000011358 absorbing material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
Classifications
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
-
- 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
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/02—Spinnerettes
-
- 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
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
-
- 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
- D01D7/00—Collecting the newly-spun products
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
- D10B2505/04—Filters
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The invention relates to the technical field of melt-blown fabric production, in particular to a low-resistance high-filtration melt-blown fabric production system which comprises a feeding and mixing mechanism, an extruder, a melt-blowing die head mechanism and a melt-blowing receiving mechanism which are sequentially connected, wherein the melt-blowing receiving mechanism comprises a mounting seat, a pitch adjusting screw rod, a push-pull connecting rod, a movable support and a receiving belt assembly; one end of a mounting seat is fixed on the melt-blown die head mechanism, the other end of the mounting seat is rotatably connected with one end of two push-pull connecting rods, the other ends of the two push-pull connecting rods relatively slide on a transverse shaft on a movable support, and a receiving belt assembly opposite to the melt-blown die head mechanism is connected on the movable support; the distance between the internal melt-blown die head mechanism and the melt-blown receiving mechanism is convenient to adjust, the distance is convenient to adjust according to actual requirements, and the melt-blown fabric is further suitable for production and processing of melt-blown fabrics with different density gradients.
Description
Technical Field
The invention relates to the technical field of melt-blown fabric production, in particular to a low-resistance high-filtration melt-blown fabric production system and a production process thereof.
Background
The melt-blown cloth is the most core material of the mask, the melt-blown cloth 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, heat-insulating material oil-absorbing materials, wiping cloth and the like.
When the melt-blown fabric production system in the prior art works, the distance between the melt-blown die head mechanism and the melt-blown receiving mechanism is inconvenient to adjust, and the melt-blown fabric with different density gradients is inconvenient to process and produce.
Disclosure of Invention
The invention aims to provide a low-resistance high-filtration melt-blown fabric production system and a production process thereof, which can effectively solve the problems in the prior art.
The purpose of the invention is realized by the following technical scheme:
a low-resistance high-filtering melt-blown fabric production system comprises a feeding and mixing mechanism, an extruder, a melt-blowing die head mechanism and a melt-blowing receiving mechanism which are sequentially connected, wherein the melt-blowing receiving mechanism comprises a mounting seat, a distance adjusting screw rod, a push-pull connecting rod, a movable support and a receiving belt assembly; one end of the mounting seat is fixed on the melt-blowing die head mechanism, the other end of the mounting seat is rotatably connected with one end of two push-pull connecting rods, the other ends of the two push-pull connecting rods relatively slide on a transverse shaft on a movable support, and a receiving belt assembly opposite to the melt-blowing die head mechanism is connected on the movable support; one end of the distance adjusting screw is in threaded fit with the mounting seat, and the other end of the distance adjusting screw is rotatably connected to the movable support.
The receiving belt assembly comprises a power motor, a rotating roller, a receiving belt body, a lifting support and a lifting linkage unit; four rotating rollers which are arranged in parallel are rotatably connected above the lifting support, and a receiving belt body is sleeved on the outer sides of the four rotating rollers so as to be in transmission connection with the receiving belt body; an output shaft of a power motor fixed on the lifting bracket is in transmission connection with a rotating roller; the lower end of the lifting bracket is in sliding fit with the longitudinal slide way of the movable support; one end of the lifting linkage unit is connected to the lifting support, and the other end of the lifting linkage unit is connected to the movable support; the lifting linkage unit is in transmission connection with a rotating roller.
The lifting linkage unit comprises a linkage inserted rod, a linkage worm wheel, a wheel shaft and an eccentric rod; one end of the linkage worm is inserted in the insertion groove of the rotating roller, the screw rod on the rotating roller is matched with the linkage insertion rod, and the inner end of the linkage insertion rod can be inserted in the insertion hole of the linkage worm; the linkage worm is rotatably connected to the lifting support through the bearing frame, the linkage worm is meshed with the linkage worm wheel, the linkage worm wheel is fixed to one end of the wheel shaft, the other end of the wheel shaft is rotatably connected to the lifting support through the bearing frame, the eccentric position of the wheel face of the linkage worm wheel is rotatably connected to one end of the eccentric rod, and the other end of the eccentric rod is rotatably connected to the movable support.
The melt-blown die head mechanism comprises a fixed support, a spinning assembly, a sliding groove frame, a hot air wire drawing assembly and a cooling forming assembly; the fixed support is fixed with one end of the mounting seat; a spinning assembly arranged opposite to the receiving belt assembly is arranged on the fixed support; the upper end and the lower end of the spinning assembly are respectively connected with a hot air wire drawing assembly in a matching way; two cooling forming assemblies are arranged, one ends of the two cooling forming assemblies relatively slide at the upper end and the lower end of the inner side of the chute frame, and the chute frame is fixed at the side end of the spinning assembly; the cold air outlets of the two cooling forming assemblies are positioned at the upper end and the lower end of one side of the spinning assembly, and the two cooling forming assemblies are connected with the spinning assembly in a matching way.
The spinning assembly comprises a die head box, one end of the die head box is provided with a feeding pipe connected with the extruder, and the other end of the die head box is provided with a plurality of spinning holes at equal intervals; a plurality of orifices are located between the two cooled shaping assemblies.
The spinning pack also comprises a spinning amount adjusting unit; the spinning quantity adjusting unit comprises an upper spinning orifice plate, a lower spinning orifice plate, a sliding vertical plate, a linkage transverse plate, an adjusting connecting rod, an adjusting plate and an adjusting screw rod; the upper spinneret orifice plate and the lower spinneret orifice plate are respectively provided with a plurality of upper spinneret orifice plates and a plurality of lower spinneret orifice plates, the upper spinneret orifice plates and the lower spinneret orifice plates are sealed relatively and slide at the upper end and the lower end inside the spinneret orifices, the bottom surface of each upper spinneret orifice plate is provided with an upper semicircular hole, and the top surface of each lower spinneret orifice plate is provided with a lower semicircular hole; the upper ends of the upper spinneret orifice plates and the lower ends of the lower spinneret orifice plates are respectively fixed with a sliding vertical plate, the sliding vertical plates positioned above slide in the upper vertical holes of the die head box, and the sliding vertical plates positioned above are fixed on a linkage transverse plate; a plurality of lower sliding vertical plates slide in a plurality of lower vertical holes of the die head box, and a plurality of lower sliding vertical plates are fixed on the other linkage transverse plate; the two linkage transverse plates slide in two slide ways of the die head box relatively, one ends of the two linkage transverse plates are rotatably connected with one ends of two adjusting connecting rods, the other ends of the two adjusting connecting rods rotate at two ends of an adjusting plate, the middle part of the adjusting plate is in threaded fit with an adjusting screw rod, and the adjusting screw rod rotates on the outer side surface of the die head box; the other ends of the two linkage transverse plates are fixedly connected with the two cooling forming assemblies one by one.
The adjusting plate is in threaded fit with the fastening bolt, and the inner end of the fastening bolt is pressed against the adjusting screw rod.
The hot air wire drawing assembly comprises a hot air box with a fan inside, and an electric heater is arranged on the inner wall of the hot air box; the hot air outlet of the hot air box is arranged towards the front of the spinneret orifice, the hot air box is connected to one end of the turnover frame, the other end of the turnover frame is fixed to the turnover shaft, the middle of the turnover shaft is rotated on the die box through the vertical frame, the vertical frame is rotatably connected with the inclination adjusting worm, and the inclination adjusting worm is meshed with the driven worm wheel fixed to the turnover shaft.
The cooling molding assembly comprises a bearing sliding frame, a horizontal sliding pipe, a cooling pipe, a displacement sliding block and a rotating screw rod; the bearing sliding frame is fixed at the other end of the linkage transverse plate and is in sliding fit in a longitudinal slideway of the sliding chute frame; the transverse slide way of the bearing pipe bracket is in sliding fit with the middle part of a horizontal sliding pipe, one end of the horizontal sliding pipe is connected with an air cooler, the other end of the horizontal sliding pipe is connected with a pipe orifice at one end of a cooling pipe through a right-angle bent pipe, a pipe orifice at the other end of the cooling pipe is arranged in a closed manner, and a plurality of cooling branch air outlets are arranged on the cooling pipe at equal intervals so as to cool fibers sprayed out through a spinneret orifice; one end of the displacement sliding block is fixed on the horizontal sliding pipe, the other end of the displacement sliding block is in threaded fit with the middle of the rotary screw, the rotary screw rotates on the bearing sliding frame through the screw support, and the axis of the rotary screw is perpendicular to the axis of the cooling pipe.
The production process for preparing the melt-blown fabric by the low-resistance high-filtration melt-blown fabric production system comprises the following steps:
s1, selecting raw materials and auxiliary materials for preparing low-resistance high-filtration melt-blown fabric, and putting the raw materials and the auxiliary materials into a material mixing mechanism for mixing treatment to obtain a mixture;
s2, feeding the mixture into an extruder through a feeding and mixing mechanism, extruding and melting the mixture through the extruder to form a viscous-state melt, filtering the melt through a melt filter, and conveying the melt into a melt-blowing die head mechanism through a metering pump;
and S3, extruding the melt in the viscous state by the melt-blowing die head mechanism, stretching the melt by high-temperature air flow to form fibers, cooling the fibers by cold air on the side part to form fiber tows, winding and distributing the fiber tows on the melt-blowing receiving mechanism to form low-resistance high-temperature filtering melt-blown cloth, and finally performing water electret and drying treatment.
The invention has the beneficial effects that: the distance between the internal melt-blowing die head mechanism and the melt-blowing receiving mechanism is convenient to adjust, the distance is convenient to adjust according to actual requirements, and the melt-blowing die head mechanism is further suitable for production and processing of melt-blown cloth with different density gradients; the height of the internal receiving belt assembly can be adjusted, and reciprocating displacement motion in the vertical direction can be performed, so that the production and processing requirements of melt-blown cloth with different densities can be met better; the internal spinneret assembly also comprises a spinneret quantity adjusting unit, and the size of the spinneret holes can be adjusted through the spinneret quantity adjusting unit to change the quantity of the spinneret threads so as to produce melt-blown cloth products with different properties.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is an overall schematic view provided by an embodiment of the present invention;
FIG. 2 is a first schematic diagram of a melt-blowing die mechanism and a melt-blowing receiving mechanism provided by an embodiment of the invention;
FIG. 3 is a second schematic diagram of a meltblowing die mechanism and a meltblowing receiving mechanism provided by an embodiment of the invention;
FIG. 4 is a first structural schematic diagram of a meltblowing die mechanism provided by an embodiment of the invention;
FIG. 5 is a schematic structural diagram of a spin pack provided in an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a spinning quantity adjusting unit provided in the embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a hot air wire drawing assembly provided by an embodiment of the invention;
FIG. 8 is a schematic view of a cooling molding assembly according to an embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a meltblown receiving mechanism provided by an embodiment of the invention;
FIG. 10 is a schematic structural view of a receptor tape assembly provided by an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a lifting linkage unit according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of a second meltblown die mechanism according to an embodiment of the invention.
Icon: a feeding and mixing mechanism 1; an extruder 2; a melt-blowing die mechanism 3; a fixed support 31; spin pack 32; a die case 321; a feed pipe 322; a spinning amount adjusting unit 323; an upper orifice plate 3231; a lower orifice plate 3232; a sliding riser 3233; a linkage transverse plate 3234; an adjusting link 3235; an adjustment plate 3236; an adjusting screw 3237; a chute frame 33; a hot air wire drawing assembly 34; a hot air box 341; a roll-over stand 342; a flip shaft 343; a stand 344; a tilt adjusting worm 345; a driven worm gear 346; cooling the molded component 35; a holding carriage 351; a horizontal slide tube 352; a cooling tube 353; the displacement slide 354; a rotating screw 355; a melt-blown receiving mechanism 4; a mount 41; a pitch adjusting screw 42; a push-pull link 43; a movable support 44; a receiving belt assembly 45; a power motor 451; a rotating roller 452; a receiving belt body 453; a lifting bracket 454; the lifting link unit 455; a linkage plunger 4551; a ganged worm 4552; a linked worm gear 4553; a hub 4554; eccentric rod 4555.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings to facilitate the description of the application and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be constructed in operation as a limitation of the application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, the meaning of a plurality of or a plurality of is two or more unless specifically limited otherwise.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for understanding and reading the contents disclosed in the specification, and are not used for limiting the conditions that the present application can implement, so the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the technical content disclosed in the present application without affecting the efficacy and the achievable purpose of the present application. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present application, and changes or modifications in the relative relationship may be made without substantial technical changes.
The present invention is described in further detail below with reference to figures 1-12.
As shown in fig. 1-12, a low-resistance high-filtration melt-blown fabric production system comprises a feeding and mixing mechanism 1, an extruder 2, a melt-blowing die head mechanism 3 and a melt-blowing receiving mechanism 4 which are connected in sequence, wherein the melt-blowing receiving mechanism 4 comprises a mounting seat 41, a pitch adjusting screw 42, a push-pull connecting rod 43, a movable support 44 and a receiving belt assembly 45; one end of a mounting seat 41 is fixed on the melt-blowing die head mechanism 3, the other end of the mounting seat 41 is rotatably connected with one end of two push-pull connecting rods 43, the other ends of the two push-pull connecting rods 43 relatively slide on a transverse shaft on a movable support 44, and a receiving belt assembly 45 opposite to the melt-blowing die head mechanism 3 is connected on the movable support 44; one end of the pitch adjusting screw 42 is screwed on the mounting base 41, and the other end of the pitch adjusting screw 42 is rotatably connected to the movable support 44.
When the low-resistance high-filtration melt-blown fabric production system is used for producing and processing melt-blown fabric, firstly, raw materials and auxiliary materials for preparing the low-resistance high-filtration melt-blown fabric are selected, and then the raw materials and the auxiliary materials are put into the material mixing mechanism 1 for mixing treatment to obtain a mixture; then the mixture is fed into an extruder 2 through a feeding and mixing mechanism 1, the mixture is extruded and melted by the extruder 2 to form a viscous-state melt, and the melt is filtered by a melt filter and then is conveyed into a melt-blowing die head mechanism 3 through a metering pump; the melt-blown die head mechanism 3 extrudes the melt in a viscous flow state, the melt is stretched through high-temperature airflow, so that fibers are formed, the fibers are cooled through cold air on the side part to form fiber tows, the fiber tows are wound and distributed on the melt-blown receiving mechanism 4 to form low-resistance high-filtering melt-blown cloth, and finally water electret and drying treatment are carried out; the distance between the melt-blown die head mechanism 3 and the melt-blown receiving mechanism 4 is convenient to adjust, the distance can be conveniently adjusted according to actual requirements, the melt-blown die head mechanism is further suitable for production and processing of melt-blown cloth with different density gradients, during adjustment, the contact position between the melt-blown die head mechanism and the mounting seat 41 can be changed by rotating the distance adjusting screw 42, so that the included angle between the two push-pull connecting rods 43 is changed, the other ends of the two push-pull connecting rods 43 slide oppositely or deviate from the sliding on the transverse shaft on the movable support 44, so that the distance between the movable support 44 and the mounting seat 41 is changed, the distance between the receiving belt assembly 45 and the melt-blown die head mechanism 3 is finally adjusted, the receiving distance is changed, and melt-blown cloth products with different performances can be processed.
The receptor band assembly 45 comprises a power motor 451, a rotating roller 452, a receptor band body 453, a lifting bracket 454 and a lifting linkage unit 455; four rotating rollers 452 arranged in parallel are rotatably connected above the lifting support 454, and a receiving belt body 453 is sleeved outside the four rotating rollers 452 so as to be in transmission connection through the receiving belt body 453; an output shaft of a power motor 451 fixed on the lifting bracket 454 is in transmission connection with a rotating roller 452; the lower end of the lifting bracket 454 is in sliding fit in the longitudinal slide way of the movable support 44; one end of the lifting linkage unit 455 is connected to the lifting bracket 454, and the other end of the lifting linkage unit 455 is connected to the movable support 44; the elevating link unit 455 is drivingly connected to a rotating roller 452. After the power motor 451 is started, the power motor 451 can drive the rotating rollers 452 connected with the output shafts of the power motor to rotate, and when the rotating rollers 452 rotate, the other three rotating rollers 452 can be driven to rotate through the transmission of the receiving belt body 453, so that the receiving belt body 453 is driven to move, and fiber tows sprayed on the receiving belt body 453 are wound; when the rotating roller 452 connected with the lifting linkage unit 455 rotates, the lifting linkage unit 455 can be controlled to operate in a transmission manner, and when the lifting linkage unit 455 operates, the lifting support 454 can be driven to perform reciprocating displacement motion in the vertical direction in the longitudinal slide way of the movable support 44, so that the production and processing requirements of the melt-blown cloth with different densities can be better met; the horizontal heights of the lifting bracket 454 and the ribbon housing body 453 can also be adjusted by the lifting link unit 455 and height limit locking is performed.
The lifting linkage unit 455 comprises a linkage plunger 4551, a linkage worm 4552, a linkage worm wheel 4553, a wheel shaft 4554 and an eccentric rod 4555; one end of a linkage worm 4552 is inserted into an insertion groove of a rotating roller 452, a screw on the rotating roller 452 is matched with a linkage insertion rod 4551, and the inner end of the linkage insertion rod 4551 can be inserted into an insertion hole of the linkage worm 4552; the linkage worm 4552 is rotatably connected to the lifting support 454 through a bearing bracket, the linkage worm 4552 is meshed with the linkage worm gear 4553, the linkage worm gear 4553 is fixed at one end of a wheel shaft 4554, the other end of the wheel shaft 4554 is rotatably connected to the lifting support 454 through the bearing bracket, the eccentric position of the wheel surface of the linkage worm gear 4553 is rotatably connected with one end of an eccentric rod 4555, and the other end of the eccentric rod 4555 is rotatably connected to the movable support 44.
When the lifting support 454 needs to be controlled to perform reciprocating displacement motion in the vertical slide way of the movable support 44 in the vertical direction, the linkage insert rod 4551 is rotated to be inserted into the insertion hole of the linkage worm 4552, at the moment, the linkage worm 4552 can be driven to rotate through the matching of the rotating roller 452 and the linkage insert rod 4551, the linkage worm 4552 is rotatably engaged with the linkage worm gear 4553 to rotate, the linkage worm gear 4553 rotates to drive one end of the eccentric rod 4555 to perform circumferential encircling motion, the other end of the eccentric rod 4555 performs reaction on the linkage worm gear 4553 through matching with the movable support 44, and finally the lifting support 454 is driven to perform reciprocating displacement motion in the vertical direction in the vertical slide way of the movable support 44, so that the continuous change of the horizontal height of the receiving belt body 453 is realized, and areas with different densities can be processed on one piece of melt-blown cloth at intervals; the lifting linkage unit 455 can also be used only for adjusting the horizontal heights of the lifting support 454 and the receiving belt body 453, at this time, the linkage insert rod 4551 is separated from the insert hole of the linkage worm 4552, the linkage worm 4552 is rotated to be meshed with the transmission linkage worm wheel 4553 to rotate, the linkage worm wheel 4553 is matched with the eccentric rod 4555 when rotating, the lifting support 454 can be driven to slide in the longitudinal slide way of the movable support 44, so that the horizontal heights of the lifting support 454 and the receiving belt body 453 are adjusted, and the worm wheel and the worm are structurally arranged to realize self-locking after adjustment.
The melt-blown die head mechanism 3 comprises a fixed support 31, a spinneret assembly 32, a sliding groove frame 33, a hot air wire drawing assembly 34 and a cooling forming assembly 35; the fixed support 31 is fixed with one end of the mounting seat 41; the fixed support 31 is provided with a spinning assembly 32 which is arranged opposite to the receiving belt assembly 45; the upper end and the lower end of the spinning assembly 32 are respectively connected with a hot air wire drawing assembly 34 in a matching way; two cooling forming assemblies 35 are arranged, one ends of the two cooling forming assemblies 35 slide at the upper end and the lower end of the inner side of the sliding groove frame 33 relatively, and the sliding groove frame 33 is fixed at the side end of the spinning assembly 32; the cold air outlets of the two cooling forming assemblies 35 are positioned at the upper end and the lower end of one side of the spinning assembly 32, and the two cooling forming assemblies 35 are connected with the spinning assembly 32 in a matching way.
The spinneret assembly 32 in the melt-blowing die head mechanism 3 is used for extruding a melt in a viscous state, then the melt is stretched through high-temperature air flows generated by the two hot air wire drawing assemblies 34 at the upper end and the lower end, so that fibers are formed, the stretched fibers are cooled through cold air generated by the two cooling forming assemblies 35, so that fiber tows are formed, and the fiber tows are wound and distributed on the melt-blowing receiving mechanism 4 to form low-resistance high-filtration melt-blowing cloth.
The spinneret assembly 32 comprises a die head box 321, one end of the die head box 321 is provided with a feeding pipe 322 connected with the extruder 2, and the other end of the die head box 321 is provided with a plurality of spinneret holes at equal intervals; a plurality of orifices are located between the two cooled shaping assemblies 35. The melt is fed through a feed tube 322 to a die box 321 and ejected through a plurality of orifices.
The spinning pack 32 further includes a spinning amount adjusting unit 323; the filament spraying amount adjusting unit 323 comprises an upper filament spraying hole plate 3231, a lower filament spraying hole plate 3232, a sliding vertical plate 3233, a linkage transverse plate 3234, an adjusting connecting rod 3235, an adjusting plate 3236 and an adjusting screw 3237; the upper spinneret orifice plate 3231 and the lower spinneret orifice plate 3232 are respectively provided with a plurality of upper spinneret orifice plates 3231 and a plurality of lower spinneret orifice plates 3232 which are sealed relatively and slide at the upper end and the lower end inside the spinneret orifices, the bottom surface of the upper spinneret orifice plate 3231 is provided with an upper semicircular hole, and the top surface of the lower spinneret orifice plate 3232 is provided with a lower semicircular hole; the upper ends of the upper spinneret orifice plates 3231 and the lower ends of the lower spinneret orifice plates 3232 are respectively fixed with a sliding vertical plate 3233, the sliding vertical plates 3233 positioned above slide in the upper vertical holes of the die head box 321, and the sliding vertical plates 3233 positioned above are fixed on a linkage transverse plate 3234; a plurality of lower sliding risers 3233 slide in a plurality of lower vertical holes of the die head box 321, and the lower sliding risers 3233 are fixed on the other linkage transverse plate 3234; two linkage transverse plates 3234 slide in two slide ways of the die head box 321 relatively, one ends of the two linkage transverse plates 3234 are rotatably connected with one ends of two adjusting connecting rods 3235, the other ends of the two adjusting connecting rods 3235 rotate at two ends of an adjusting plate 3236, the middle part of the adjusting plate 3236 is in threaded fit with an adjusting screw 3237, and the adjusting screw 3237 rotates on the outer side surface of the die head box 321; the other ends of the two linkage transverse plates 3234 are fixedly connected with the two cooling forming assemblies 35 one by one. The internal spinneret assembly 32 further comprises a spinneret quantity adjusting unit 323, the size of spinneret holes can be adjusted through the spinneret quantity adjusting unit 323, and the spinneret quantity can be changed, so that melt-blown cloth products with different properties can be produced; during adjustment, the adjusting screw 3237 is rotated to change the contact position between the adjusting screw and the adjusting plate 3236, the adjusting plate 3236 moves horizontally to drive one end of the two adjusting connecting rods 3235 to move, the included angle between the two adjusting connecting rods 3235 changes, the other end of the two adjusting connecting rods 3235 drives the two linkage transverse plates 3234 to move in the opposite direction or in the opposite direction, the two linkage transverse plates 3234 move to drive the upper spinneret orifice plates 3231 and the lower spinneret orifice plates 3232 to move in the opposite direction or in the opposite direction through the sliding vertical plates 3233, and when the upper spinneret orifice plates 3231 and the lower spinneret orifice plates 3232 move in the opposite direction, the size of the spinneret orifices is reduced, and when the upper spinneret orifice plates 3231 and the lower spinneret orifice plates 3232 move in the opposite direction, the size of the spinneret orifices is increased.
The adjusting plate 3236 is in threaded fit with a fastening bolt, and the inner end of the fastening bolt is pressed against the adjusting screw 3237.
The hot air wire drawing assembly 34 comprises a hot air box 341 with a fan inside, and an electric heater is arranged on the inner wall of the hot air box 341; the hot air outlet of the hot air box 341 faces the front of the spinneret orifice, the hot air box 341 is connected with one end of a turning frame 342, the other end of the turning frame 342 is fixed on a turning shaft 343, the middle part of the turning shaft 343 is rotated on the die head box 321 through a vertical frame 344, the vertical frame 344 is rotatably connected with an inclination adjusting worm 345, and the inclination adjusting worm 345 is engaged with a driven worm wheel 346 fixed on the turning shaft 343. The orientation of the hot air outlet of the hot air box 341, that is, the inclination angle of the hot air box 341, can be adjusted by rotating the inclination adjusting worm 345, and the spraying angle thereof can be adjusted, so that the performance of the melt-blown fabric formed by stretching can be changed; during adjustment, the inclination adjusting worm 345 rotates to drive the driven worm wheel 346 to rotate, the driven worm wheel 346 rotates to drive the turning shaft 343 to rotate, the turning shaft 343 rotates to drive the turning frame 342 to turn, and therefore the inclination angle of the hot air box 341 is driven to be adjusted, and melt-blown cloth with different densities can be obtained conveniently.
The cooling and forming assembly 35 comprises a supporting sliding frame 351, a horizontal sliding pipe 352, a cooling pipe 353, a displacement sliding block 354 and a rotating screw 355; the bearing sliding frame 351 is fixed at the other end of the linkage transverse plate 3234, and the bearing sliding frame 351 is in sliding fit in a longitudinal slide way of the slide groove frame 33; the transverse slide way of the support tube bracket is in sliding fit with the middle part of a horizontal sliding tube 352, one end of the horizontal sliding tube 352 is connected with an air cooler, the other end of the horizontal sliding tube 352 is connected with a nozzle at one end of a cooling tube 353 through a right-angle bent tube, the nozzle at the other end of the cooling tube 353 is arranged in a closed manner, and a plurality of cooling branch air outlets are arranged on the cooling tube 353 at equal intervals so as to cool fibers sprayed out through a spinneret orifice; one end of a displacement slide block 354 is fixed on the horizontal sliding pipe 352, the other end of the displacement slide block 354 is in threaded fit with the middle of a rotating screw 355, the rotating screw 355 rotates on the supporting sliding frame 351 through a screw support, and the axis of the rotating screw 355 is perpendicular to the axis of the cooling pipe 353. One end of a horizontal sliding pipe 352 in the cooling forming assembly 35 is connected with a cold air device, cold air generated by the cold air device can be sent into the cooling pipe 353 through the horizontal sliding pipe 352, and is sprayed out through a plurality of cooling branch air outlets of the cooling pipe 353, so that fibers formed by high-temperature stretching are cooled, and fiber tows are obtained; when the size of the spinneret orifice is increased, the two linkage transverse plates 3234 synchronously drive the two bearing carriages 351 to slide away from each other, so that the distance between the two cooling forming assemblies 35 is increased, the distance between the two cooling forming assemblies 35 and fibers sprayed from the spinneret orifice is kept in a relatively fixed state, and the production and processing quality is ensured; the position of cooling tube 353 apart from the spinneret orifice can be adjusted properly, and during the regulation, rotate rotatory screw 355 and change its and displacement slider 354 contact position to drive horizontal slide pipe 352 through displacement slider 354 and carry out lateral sliding in bearing carriage 351, finally drive the position of cooling tube 353 and adjust, in order to satisfy different production and processing demands.
The production process for preparing the melt-blown fabric by the low-resistance high-filtration melt-blown fabric production system comprises the following steps:
s1, selecting raw materials and auxiliary materials for preparing low-resistance high-filtration melt-blown fabric, and putting the raw materials and the auxiliary materials into a material mixing mechanism 1 for mixing treatment to obtain a mixture;
s2, feeding the mixture into an extruder 2 through a feeding and mixing mechanism 1, extruding and melting the mixture through the extruder 2 to form a viscous-state melt, filtering the melt through a melt filter, and conveying the melt into a melt-blowing die head mechanism 3 through a metering pump;
and S3, extruding the melt in the viscous state by the melt-blowing die head mechanism 3, stretching the melt by high-temperature air flow to form fibers, cooling the fibers by cold air on the side part to form fiber tows, winding and distributing the fiber tows on the melt-blowing receiving mechanism 4 to form low-resistance high-filtering melt-blown cloth, and finally performing water electret and drying treatment.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A low-resistance high-filtering melt-blown fabric production system comprises a feeding and mixing mechanism (1), an extruder (2), a melt-blowing die head mechanism (3) and a melt-blowing receiving mechanism (4) which are sequentially connected, and is characterized in that the melt-blowing receiving mechanism (4) comprises a mounting seat (41), a distance adjusting screw rod (42), a push-pull connecting rod (43), a movable support (44) and a receiving belt assembly (45); one end of a mounting seat (41) is fixed on the melt-blowing die head mechanism (3), the other end of the mounting seat (41) is rotatably connected with one end of two push-pull connecting rods (43), the other ends of the two push-pull connecting rods (43) relatively slide on a transverse shaft on a movable support (44), and the movable support (44) is connected with a receiving belt assembly (45) opposite to the melt-blowing die head mechanism (3); one end of the distance adjusting screw rod (42) is in threaded fit with the mounting seat (41), and the other end of the distance adjusting screw rod (42) is rotatably connected to the movable support (44).
2. The low resistance, high filtration meltblown production system of claim 1, wherein the receptor band assembly (45) comprises a powered motor (451), a rotating roller (452), a receptor band body (453), a lifting bracket (454), and a lifting linkage unit (455); four rotating rollers (452) arranged in parallel are rotatably connected above the lifting support (454), and a receiving belt body (453) is sleeved on the outer sides of the four rotating rollers (452) and is in transmission connection with the receiving belt body (453); an output shaft of a power motor (451) fixed on the lifting bracket (454) is in transmission connection with a rotating roller (452); the lower end of the lifting bracket (454) is in sliding fit in a longitudinal slideway of the movable support (44); one end of the lifting linkage unit (455) is connected to the lifting support (454), and the other end of the lifting linkage unit (455) is connected to the movable support (44); the lifting linkage unit (455) is in transmission connection with a rotating roller (452).
3. The low resistance high filtration meltblown production system according to claim 2, wherein said lifting linkage unit (455) comprises a linkage plunger (4551), a linkage worm (4552), a linkage worm gear (4553), a wheel axle (4554), and an eccentric rod (4555); one end of a linkage worm (4552) is inserted into an insertion groove of a rotating roller (452), a screw rod on the rotating roller (452) is matched with a linkage insertion rod (4551), and the inner end of the linkage insertion rod (4551) can be inserted into an insertion hole of the linkage worm (4552); the linkage worm (4552) is rotatably connected to the lifting support (454) through a bearing frame, the linkage worm (4552) is meshed with a linkage worm wheel (4553), the linkage worm wheel (4553) is fixed at one end of a wheel shaft (4554), the other end of the wheel shaft (4554) is rotatably connected to the lifting support (454) through the bearing frame, the eccentric position of the wheel surface of the linkage worm wheel (4553) is rotatably connected with one end of an eccentric rod (4555), and the other end of the eccentric rod (4555) is rotatably connected to the movable support (44).
4. The low resistance high filtration meltblown production system according to claim 1, wherein said meltblown die head mechanism (3) comprises a fixed support (31), a spinneret assembly (32), a chute frame (33), a hot air wire drawing assembly (34) and a cooling forming assembly (35); the fixed support (31) is fixed with one end of the mounting seat (41); a spinning assembly (32) arranged opposite to the receiving belt assembly (45) is arranged on the fixed support (31); the upper end and the lower end of the spinning assembly (32) are respectively connected with a hot air wire drawing assembly (34) in a matching way; two cooling forming assemblies (35) are arranged, one ends of the two cooling forming assemblies (35) relatively slide at the upper end and the lower end of the inner side of the sliding groove frame (33), and the sliding groove frame (33) is fixed at the side end of the spinning assembly (32); the cold air outlets of the two cooling forming assemblies (35) are positioned at the upper end and the lower end of one side of the spinning assembly (32), and the two cooling forming assemblies (35) are connected with the spinning assembly (32) in a matching way.
5. The low resistance high filtration meltblown production system according to claim 4, wherein the spin pack (32) comprises a die box (321), one end of the die box (321) is provided with a feed pipe (322) connected to the extruder (2), and the other end of the die box (321) is provided with a plurality of orifices at equal intervals; a plurality of orifices are located between the two cooled shaping modules (35).
6. The low resistance, high filtration meltblown production system of claim 5, wherein said spin pack (32) further comprises a die feed adjustment unit (323); the spinning amount adjusting unit (323) comprises an upper spinning orifice plate (3231), a lower spinning orifice plate (3232), a sliding vertical plate (3233), a linkage horizontal plate (3234), an adjusting connecting rod (3235), an adjusting plate (3236) and an adjusting screw rod (3237); the upper spinneret orifice plate (3231) and the lower spinneret orifice plate (3232) are respectively provided with a plurality of upper spinneret orifice plates and a plurality of lower spinneret orifice plates, the upper spinneret orifice plates (3231) and the lower spinneret orifice plates (3232) are sealed relatively and slide at the upper end and the lower end inside the spinneret orifices, the bottom surface of the upper spinneret orifice plate (3231) is provided with an upper semicircular hole, and the top surface of the lower spinneret orifice plate (3232) is provided with a lower semicircular hole; the upper ends of the upper spinneret orifice plates (3231) and the lower ends of the lower spinneret orifice plates (3232) are respectively fixed with a sliding vertical plate (3233), the sliding vertical plates (3233) positioned above slide in the upper vertical holes of the die head box (321), and the sliding vertical plates (3233) positioned above are fixed on a linkage transverse plate (3234); a plurality of lower sliding vertical plates (3233) slide in a plurality of lower vertical holes of the die head box (321), and the lower sliding vertical plates (3233) are fixed on the other linkage transverse plate (3234); the two linkage transverse plates (3234) slide in two slide ways of the die head box (321) relatively, one ends of the two linkage transverse plates (3234) are rotatably connected with one ends of two adjusting connecting rods (3235), the other ends of the two adjusting connecting rods (3235) rotate at two ends of an adjusting plate (3236), the middle part of the adjusting plate (3236) is in threaded fit with an adjusting screw rod (3237), and the adjusting screw rod (3237) rotates on the outer side surface of the die head box (321); the other ends of the two linkage transverse plates (3234) are fixed with the two cooling forming components (35) one by one.
7. The low resistance high filtration meltblown production system according to claim 6, wherein said adjustment plate (3236) is threadably engaged with a fastening bolt, the inner end of which abuts against the adjustment screw (3237).
8. The low resistance high filtration meltblown production system according to claim 7, wherein the hot air wire drawing assembly (34) comprises a hot air box (341) having a fan therein, and an electric heater is disposed on an inner wall of the hot air box (341); the hot air outlet of the hot air box (341) is arranged towards the front of the spinneret orifice, the hot air box (341) is connected to one end of the turning frame (342), the other end of the turning frame (342) is fixed on the turning shaft (343), the middle part of the turning shaft (343) is rotated on the die head box (321) through the vertical frame (344), the vertical frame (344) is rotatably connected with the inclination adjusting worm (345), and the inclination adjusting worm (345) is meshed with the driven worm wheel (346) fixed on the turning shaft (343).
9. The low resistance high filtration meltblown manufacturing system of claim 8, wherein said cold forming assembly (35) comprises a support carriage (351), a horizontal slide tube (352), a cooling tube (353), a displacement slide (354), and a rotating screw (355); the bearing sliding frame (351) is fixed at the other end of the linkage transverse plate (3234), and the bearing sliding frame (351) is in sliding fit in a longitudinal slideway of the sliding groove frame (33); the transverse slide way of the bearing pipe bracket is in sliding fit with the middle part of a horizontal sliding pipe (352), one end of the horizontal sliding pipe (352) is connected with an air cooler, the other end of the horizontal sliding pipe (352) is connected with a pipe orifice at one end of a cooling pipe (353) through a right-angle bent pipe, a pipe orifice at the other end of the cooling pipe (353) is arranged in a closed manner, and a plurality of cooling branch air outlets are arranged at equal intervals on the cooling pipe (353) so as to cool fibers sprayed out through a spinneret orifice; one end of a displacement slide block (354) is fixed on the horizontal sliding pipe (352), the other end of the displacement slide block (354) is in threaded fit with the middle part of a rotary screw rod (355), the rotary screw rod (355) rotates on the bearing sliding frame (351) through a screw rod support, and the axis of the rotary screw rod (355) is vertical to the axis of the cooling pipe (353).
10. The low resistance, high filtration meltblown production system of any of claims 1-9, wherein the production process comprises the steps of:
s1, selecting raw materials and auxiliary materials for preparing low-resistance high-filtration melt-blown fabric, and putting the raw materials and the auxiliary materials into a material mixing mechanism (1) for mixing treatment to obtain a mixture;
s2, feeding the mixture into an extruder (2) through a feeding and mixing mechanism (1), extruding and melting the mixture through the extruder (2) to form a viscous-state melt, filtering the melt through a melt filter, and conveying the melt into a melt-blowing die head mechanism (3) through a metering pump;
and S3, extruding the melt in the viscous state by the melt-blowing die head mechanism (3), stretching the melt by high-temperature air flow to form fibers, cooling the fibers by cold air on the side part to form fiber tows, winding and distributing the fiber tows on the melt-blowing receiving mechanism (4) to form low-resistance high-filtering melt-blowing cloth, and finally performing water electret and drying treatment.
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| CN202211110115.7A CN115387026A (en) | 2022-09-13 | 2022-09-13 | Low-resistance high-filtering melt-blown fabric production system and production process thereof |
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| CN202211110115.7A CN115387026A (en) | 2022-09-13 | 2022-09-13 | Low-resistance high-filtering melt-blown fabric production system and production process thereof |
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| DE10338821A1 (en) * | 2003-08-21 | 2005-05-12 | Zimmer Ag | Manufacture of fine, partially-orientated melt-spun polyester fiber for processing to staple fibers, passes extruded molten fibers from nozzle plate to oiler and galette |
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| CN111648041A (en) * | 2020-06-13 | 2020-09-11 | 哈尔滨极者科技有限责任公司 | Melt-blown fabric and preparation system and preparation process thereof |
| CN111648042A (en) * | 2020-06-13 | 2020-09-11 | 哈尔滨极者科技有限责任公司 | Preparation method of hydrophobic melt-blown fabric |
| CN211665208U (en) * | 2019-12-09 | 2020-10-13 | 浙江悦丰智能机电有限公司 | Spandex filament spinning device spinneret plate for textile printing and dyeing |
| CN212640791U (en) * | 2020-06-28 | 2021-03-02 | 江阴市雅泽毛纺织有限公司 | Angle-adjustable melt-blown fabric receiving device |
| CN216514485U (en) * | 2021-12-28 | 2022-05-13 | 常州市福欧车辆配件有限公司 | Sound-absorbing cotton felt preparation equipment for car replacing PU foaming process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK626686D0 (en) * | 1985-12-27 | 1986-12-23 | Chisso Corp | SPIN HEADS FOR STABLE FIBER MANUFACTURING |
| DE10338821A1 (en) * | 2003-08-21 | 2005-05-12 | Zimmer Ag | Manufacture of fine, partially-orientated melt-spun polyester fiber for processing to staple fibers, passes extruded molten fibers from nozzle plate to oiler and galette |
| US9260799B1 (en) * | 2013-05-07 | 2016-02-16 | Thomas M. Tao | Melt-blowing apparatus with improved primary air delivery system |
| CN211665208U (en) * | 2019-12-09 | 2020-10-13 | 浙江悦丰智能机电有限公司 | Spandex filament spinning device spinneret plate for textile printing and dyeing |
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| CN212640791U (en) * | 2020-06-28 | 2021-03-02 | 江阴市雅泽毛纺织有限公司 | Angle-adjustable melt-blown fabric receiving device |
| CN216514485U (en) * | 2021-12-28 | 2022-05-13 | 常州市福欧车辆配件有限公司 | Sound-absorbing cotton felt preparation equipment for car replacing PU foaming process |
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