CN111118743A - Fiber non-woven fabric injection device - Google Patents
Fiber non-woven fabric injection device Download PDFInfo
- Publication number
- CN111118743A CN111118743A CN202010090774.3A CN202010090774A CN111118743A CN 111118743 A CN111118743 A CN 111118743A CN 202010090774 A CN202010090774 A CN 202010090774A CN 111118743 A CN111118743 A CN 111118743A
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- cavity
- nozzle
- rotate
- spray
- cylinder
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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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
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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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
Abstract
The invention discloses a fiber non-woven fabric injection device, which belongs to the field of fiber non-woven fabrics and comprises the following components: the net forming curtain is a cylinder, a spray cavity enclosed by the outer wall of the net forming curtain is arranged in the cylinder, the spray cavity is used for forming a net, a coolant cavity is arranged in the outer wall of the net forming curtain, and the coolant cavity is communicated with a coolant inlet and a coolant outlet; the nozzle is positioned in the spraying cavity of the net forming curtain, the nozzle is a cylinder, a fluid cavity is arranged inside the nozzle, the fluid cavity is communicated with a material inlet, a plurality of spray heads distributed towards different directions are arranged on the outer wall of the cylinder of the nozzle, the spray heads are communicated with the fluid cavity and spray fiber flow to the net forming curtain, and the nozzle can be driven to rotate; and a drive unit (230) for driving the nozzle to rotate.
Description
Technical Field
The invention relates to the field of fiber non-woven fabrics.
Background
Nonwoven fabrics, also known as nonwovens, are composed of oriented or random fibers. It is called a cloth because of its appearance and certain properties. The non-woven fabric has the characteristics of moisture resistance, air permeability, flexibility, light weight, no combustion supporting, easy decomposition, no toxicity or irritation, rich color, low price, recycling and the like. For example, the polypropylene (pp material) granules are mostly adopted as raw materials and are produced by a continuous one-step method of high-temperature melting, spinning, laying a line and hot-pressing coiling.
The production method of the non-woven fabric comprises a water-jet method, a thermal method, a melt-blowing method and the like, wherein the melt-blowing method comprises the following preparation process steps: polymer feeding, melt extrusion, fiber formation, fiber cooling, web forming and cloth reinforcement.
In the prior art, the nozzles of the nonwoven are perpendicular to the web, as shown in fig. 5, so that the fiber method of the nonwoven tends to be perpendicular to the web, especially some filaments, which have low strength and poor denseness.
Disclosure of Invention
The invention aims to: to the problem that exists among the prior art, disclose a fibre non-woven fabrics injection apparatus, include:
the net forming curtain is a cylinder, a spraying cavity enclosed by the outer wall of the net forming curtain is arranged in the cylinder, the spraying cavity is used for forming a net, a coolant cavity is arranged in the outer wall of the net forming curtain, and the coolant cavity is communicated with a coolant inlet (110) and a coolant outlet;
the nozzle is positioned in the injection cavity of the net curtain, the nozzle is a cylinder, a fluid cavity is arranged in the nozzle, the fluid cavity is communicated with a material inlet, a plurality of spray heads distributed towards different directions are arranged on the outer wall of the nozzle cylinder, a first cavity for containing resin materials and a second cavity for containing metal materials are arranged in the nozzle, each spray head comprises a first spray head communicated with the first cavity and a second spray head communicated with the first cavity, the first spray head sprays resin flow, the second spray head sprays metal flow, the first cavity and the second cavity are isolated through foamed ceramic materials, the second spray head and the second spray head are isolated through the foamed ceramic materials, and the nozzle can be driven to rotate;
a driving unit which drives the nozzle to rotate;
a driving cylinder which drives the cylindrical nonwoven web to move in a vertical direction;
a cutter which cuts the cylindrical nonwoven fabric web in the vertical direction;
and a winding drum for winding and collecting the cut nonwoven fabric net.
As an improvement, the driving unit comprises a rotating shaft, a driving wheel, a driven wheel and a conveying belt, the rotating shaft is connected with the driving wheel, the driven wheel is located on the outer wall of the nozzle, the driving wheel is connected with the driven wheel through the conveying belt, the rotating shaft is driven to rotate to drive the driving wheel to rotate, and then the nozzle is driven to rotate while the fibers are sprayed through the driven wheel.
As an improvement, a bearing is arranged between the material inlet and the nozzle.
As an improvement, the driving cylinder comprises vertically distributed connecting rods and a cylinder body connected with the connecting rods, a plurality of rollers are arranged on the cylinder body, and the rollers extrude the non-woven fabric.
As a modification, the roll includes a first roll for collecting the cut nonwoven fabric and a second roll.
As a modification, the coolant is one of water and liquid metal.
As an improvement, the driving cylinder further comprises a central shaft positioned in the connecting rod, the tail end of the central shaft is connected with a first gear, the first gear is meshed with a second gear, the rotating direction of the second gear is perpendicular to that of the first gear, the second gear drives the roller to rotate, the central shaft is driven to rotate to drive the first gear to rotate, and the second gear drives the second gear to rotate to further drive the roller to rotate.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a drive unit;
FIG. 3 is a schematic view of the drive cylinder;
FIG. 4 is a schematic side view of a nonwoven fabric;
FIG. 5 is a schematic representation of a spun fiber of the prior art;
FIG. 6 is a schematic representation of a spun fiber of the present invention;
FIG. 7 is a spun fiber of the present invention;
FIG. 8 is a schematic view of a connecting layer;
FIG. 9 is a cross-sectional view of the nozzle;
the labels in the figure are: the labels in the figure are: 100-web forming curtain, 110-coolant inlet, 120-coolant outlet, 200-nozzle, 210-nozzle body, 220-nozzle, 221-first nozzle, 222-second nozzle, 230-driving unit, 231-rotating shaft, 232-driving wheel, 233-driven wheel, 234-conveying belt, 240-material inlet, 250-bearing component, 260-first cavity, 270-second cavity, 300-driving cylinder, 310-connecting rod, 320-cylinder, 330-roller, 340-central shaft, 350-first gear, 360-second gear, 400-cutter, 500-cylinder, 510-first cylinder, 520-second cylinder and 600-non-woven fabric. 700-first surface layer, 800-second surface layer, 900-connecting layer, 910-polyphenylene sulfide fiber and 920-aluminum fiber.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
Example 1: as shown in fig. 1, the present embodiment discloses a fiber non-woven fabric spinning apparatus, which comprises a fiber non-woven fabric spraying device, as shown in fig. 1, the fiber non-woven fabric spraying device comprises a web forming curtain 100, a nozzle 200, a driving unit 230, a cutter 400 and a winding drum 500. The net-forming curtain is a cylinder, a spray cavity enclosed by the outer wall of the net-forming curtain is arranged in the cylinder, the spray cavity is used for forming a net, a coolant cavity is arranged in the outer wall of the net-forming curtain, and the coolant cavity is communicated with a coolant inlet 110 and a coolant outlet 120; the nozzle 200 is located in the jetting chamber of the net curtain, the nozzle is a cylinder, the inside of the nozzle is a fluid chamber, the fluid chamber is communicated with a material inlet 240, and the outer wall of the nozzle cylinder is provided with a plurality of nozzles 220 distributed towards different directions. In a preferred embodiment, as shown in fig. 9, which is a top sectional view of a nozzle, a first cavity 260 for containing resin material and a second cavity 270 for containing metal material are provided in the nozzle, the second cavity has an annular cross section, the nozzle 220 includes a first nozzle 221 communicated with the first cavity and a second nozzle 222 communicated with the first cavity, the first nozzle ejects a resin flow, the second nozzle ejects a metal flow, the first nozzle and the second nozzle are staggered, and the number of the second nozzles is 30% of that of the first nozzles, which are uniformly distributed on the surface of the nozzle. The nozzle can be driven to rotate; the driving unit 230 drives the nozzle to rotate; the driving cylinder 300 drives the cylindrical nonwoven web to move in the vertical direction; the cutter 400 cuts the cylindrical nonwoven web in the vertical direction; the roll 500 winds and collects the cut nonwoven web.
The nozzle provided by the invention can rotate at a high speed while spraying fiber flow, as shown in fig. 6, the sprayed fibers are flatly laid on a net forming curtain, the dense performance of the fibers is good, the bonding performance between the fibers is good, on one hand, the tensile strength is high, on the other hand, the dense performance of the fibers is good, and the nozzle is used as a filtering material and other high small filtering particle structures. The nozzle of the present invention is capable of controlled formation of two fiber layers. In one case only the first spray head sprays, which can form the facing layer of the nonwoven, and in the other case the first spray head and the second spray head together spray, which can form the connecting layer of the nonwoven.
In a preferred embodiment, as shown in fig. 2, the driving unit 230 includes a rotational shaft 231, a driving wheel 232, a driven wheel 233, and a conveying belt 234, the rotational shaft being connected to the driving wheel, the driven wheel being located on an outer wall of the nozzle, the driving wheel and the driven wheel being connected through the conveying belt, the rotational shaft being driven to rotate to drive the driving wheel to rotate and thus drive the nozzle 200 through the driven wheel to rotate while ejecting the fibers. The rotating shaft 231 is controlled by external power, in other embodiments, a gear may be fixed outside the nozzle, the nozzle is fixed at the center of the gear, the gear is driven to rotate the nozzle, the rotating speed of the rotating shaft can be controlled, the control structure and method thereof belong to the conventional technical means, the rotating speed of the rotating shaft can be controlled to increase the speed of controlling the rotating shaft according to the compactness requirement of the non-woven fabric, for example, when the compactness requirement is high, the rotating speed is high, and when the compactness requirement is low, the rotating speed is slow, and the rotating speed of the rotating shaft can also be zero.
The nozzle of the invention can be driven to rotate, in one embodiment, a bearing 250 is arranged between the material inlet and the nozzle, the material inlet does not rotate, the nozzle rotates relative to the material inlet, the material inlet is of a tubular structure and is made of high-temperature resistant materials such as metal and ceramic, and the material inlet flows in viscous materials. Of course, the material inlet and the nozzle can also be rotated in other conventional ways so that the nozzle can be rotated relative to the material inlet.
The drive cylinder 300 described in this embodiment includes the connecting rod 310 of vertical distribution, the barrel 320 of being connected with the connecting rod, is equipped with a plurality of gyro wheel 330 on the barrel, and the gyro wheel extrudes non-woven fabrics 600, and in radial direction (horizontal direction), can distribute a plurality of groups of gyro wheels, like three groups etc. the gyro wheel provides certain power for the non-woven fabrics on the one hand, and drive non-woven fabrics upward movement can extrude the non-woven fabrics on the one hand. In a further preferred embodiment, the driving cylinder 300 further includes a central shaft 340 located inside the connecting rod, the central shaft is connected to a first gear 350 at an end thereof, the first gear is engaged with a second gear, the second gear is perpendicular to the rotation direction of the first gear, the second gear drives the roller 330 to rotate, the central shaft is driven to rotate to drive the first gear to rotate, and the second gear rotates to drive the second gear to rotate to further drive the roller to rotate. The roll 500 includes a first roll 510 and a second roll 520 for collecting the cut nonwoven fabric, and the coolant is one of water and liquid metal. The flow rate of the coolant is controlled, such as by a pump, to increase the flow rate when it is desired to have a higher heat dissipation capability for the retracting curtain, and to decrease the flow rate when a lower heat dissipation rate is desired. The spinning apparatus disclosed in this example was able to continuously spin to form the tie layer or face layer described in example 2, in one case. In another case, it can also be spun through the nozzle and collecting screen of the present invention to form a three layer combination as described in example 2, but not continuously.
Example 2: the embodiment discloses a preparation method of a composite fiber non-woven fabric, which comprises the following steps:
1) the spraying device comprises a spraying device and is characterized in that a polyphenylene sulfide resin material is added into a first cavity of the spraying device, an aluminum material is added into a second cavity of the spraying device, the first cavity and the second cavity are not communicated, the first cavity and the second cavity are respectively provided with a spray head for spraying, and a foamed ceramic material is arranged between the first cavity and the second cavity. The foamed ceramic layer can be used for effectively insulating heat, and the foamed ceramic comprises the following components in parts by weight: 100 parts of silicon nitride, 25-35 parts of silicon carbide, 8-10 parts of foaming agent, 0.2-2 parts of chromium, 0.2-2 parts of titanium and 1-2 parts of toughening agent, and trace elements of the foaming ceramic can effectively improve the temperature resistance and the heat insulation property of the foaming ceramic.
2) Electromagnetically melting the resin material in the first cavity and the metal material in the second cavity;
3) rotating a nozzle of the injection device, and respectively ejecting the resin material in the first cavity and the metal material in the second cavity from a nozzle communicated with the first cavity;
4) the sprayed resin fibers and metal fibers are bonded and cooled in the air, and a net is formed on a net collecting curtain:
5) and (5) post-treatment.
In other embodiments, the materials added into the second cavity are iron and copper.
The materials in the first cavity and the second cavity are melted by electromagnetic heating, and the electromagnetic heating is a conventional technical means.
Further, the step 3 comprises:
3-1: closing the spray head of the second cavity, so that only the first cavity sprays the resin fibers to form a first surface layer formed by the polyphenylene sulfide fibers on the net forming curtain, wherein the thickness of the first surface layer is determined by the actual length of the step and the spraying speed, and the first surface layer is specifically adjusted according to the requirement;
3-2: opening the spray head of the second cavity to enable the first cavity and the second cavity to spray fibers simultaneously, in the step, the polyphenylene sulfide fiber flow (melt flow without fibers) and the metal flow sprayed out from the spray head are bonded and cooled in the air, further, mixed fibers with good bonding performance are formed on the net forming curtain to form a connecting layer, and in the step, when the first cavity and the second cavity are sprayed, the spraying flow ratio of the first cavity to the second cavity is 10: 2
3-3: the spray head of the second chamber is closed so that only the first chamber sprays resin fibers, which form a second facing formed of polyphenylene sulfide fibers.
The invention also discloses a non-woven fabric fiber which can be prepared according to the preparation method, as shown in fig. 7, the non-woven fabric fiber comprises a first surface layer 700, a connecting layer 900 and a second surface layer 800, the first surface layer 700 and the second surface layer 800 are polyphenylene sulfide fibers, the connecting layer 900 is a polyphenylene sulfide metal mixed fiber, the connecting layer connects the first surface layer and the second surface layer, as shown in fig. 9, the connecting layer 900 comprises a polyphenylene sulfide fiber 910 and an aluminum fiber 920, and the fiber diameter of the connecting layer can be adjusted according to needs. On the one hand, the connecting layer containing the metal fibers has higher strength, the fibers in the first surface layer and the connecting layer are mutually wound, the bonding connection of the surface layer and the connecting layer is greatly improved, and if the metal fibers and the resin fibers are simply mixed, the metal fibers and the resin fibers have poor bonding performance due to large difference of the connecting mechanical properties, so that the connecting effect of the metal fibers is difficult to achieve.
The invention does not introduce new impurities, and the product has high temperature resistance; meanwhile, the metal fiber and the polyphenylene sulfide fiber are bonded without cooling and forming, and the polyphenylene sulfide fiber and the metal fiber in the connecting layer have high bonding performance. On the other hand, the metal fibers can play a role of a framework, and the bulkiness of the fibers is improved.
In another preparation method, the surface layer and the connecting layer of the non-woven fabric fibers are separately spun into a net, and then the layers are connected by the processes of spunlacing, needling and the like, and compared with the three layers, the method can be continuously produced by equipment, but the bonding performance between the layers is low.
Claims (7)
1. A fibrous nonwoven fabric spray apparatus comprising:
the net forming curtain (100) is a cylinder, a spray cavity surrounded by the outer wall of the net forming curtain is arranged in the cylinder and used for forming a net, a coolant cavity is arranged in the outer wall of the net forming curtain and communicated with a coolant inlet (110) and a coolant outlet (120);
the spray nozzle (200) is positioned in the spray cavity of the net curtain, the spray nozzle is a cylinder, a fluid cavity is arranged inside the spray nozzle, the fluid cavity is communicated with a material inlet (240), a plurality of spray heads (220) distributed towards different directions are arranged on the outer wall of the nozzle cylinder, a first cavity 260 for containing resin materials and a second cavity 270 for containing metal materials are arranged in the spray nozzle, each spray head 220 comprises a first spray head 221 communicated with the first cavity and a second spray head 222 communicated with the first cavity, the first spray head sprays resin flow, the second spray head sprays metal flow, the first cavity and the second cavity are isolated through foamed ceramic materials, the second spray head and the second spray head are isolated through the foamed ceramic materials, and the spray nozzle can be driven to rotate;
a drive unit (230) that drives the nozzle to rotate;
a driving cylinder (300) which drives the cylindrical nonwoven web to move in the vertical direction;
a cutter (400) which cuts the cylindrical nonwoven fabric web in the vertical direction;
and a reel (500) for winding and collecting the cut nonwoven fabric web.
2. The nonwoven fabric spraying apparatus according to claim 1, wherein the driving unit (230) comprises a rotating shaft (231), a driving wheel (232), a driven wheel (233), and a conveying belt (234), the rotating shaft is connected to the driving wheel, the driven wheel is located on the outer wall of the nozzle, the driving wheel is connected to the driven wheel through the conveying belt, the rotating shaft is driven to rotate to drive the driving wheel to rotate so as to drive the nozzle (200) to rotate while spraying the fibers through the driven wheel.
3. The fibrous nonwoven fabric spraying apparatus according to claim 2, wherein a bearing (250) is provided between the material inlet and the nozzle.
4. The spraying device for the non-woven fabric fabrics of claim 3, characterized in that the driving cylinder (300) comprises a connecting rod (310) which is vertically distributed and a cylinder body (320) which is connected with the connecting rod, and a plurality of rollers (330) are arranged on the cylinder body and press the non-woven fabric (600).
5. The fibrous nonwoven fabric spraying apparatus according to claim 4, wherein said roll (500) comprises a first roll (510) and a second roll (520) for collecting the cut nonwoven fabric.
6. The fibrous nonwoven fabric spray apparatus according to claim 5, wherein the coolant is one of water and liquid metal.
7. The nonwoven fabric spraying apparatus according to claim 6, wherein the driving cylinder (300) further comprises a central shaft (340) located inside the connecting rod, the central shaft is connected with a first gear (350) at the end, the first gear is engaged with a second gear, the second gear is perpendicular to the first gear in rotation direction, the second gear drives the roller (330) to rotate, the central shaft is driven to rotate to drive the first gear to rotate, and the second gear rotates to drive the second gear to rotate to further drive the roller to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010090774.3A CN111118743A (en) | 2020-02-13 | 2020-02-13 | Fiber non-woven fabric injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010090774.3A CN111118743A (en) | 2020-02-13 | 2020-02-13 | Fiber non-woven fabric injection device |
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| Publication Number | Publication Date |
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| CN111118743A true CN111118743A (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010090774.3A Pending CN111118743A (en) | 2020-02-13 | 2020-02-13 | Fiber non-woven fabric injection device |
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| CN (1) | CN111118743A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5514199A (en) * | 1994-09-20 | 1996-05-07 | Owens-Corning Fiberglas Technology, Inc. | Spinner for producing dual component fibers |
| JP2001181953A (en) * | 1999-12-27 | 2001-07-03 | Nippon Petrochem Co Ltd | Method for producing composite nonwoven fabric and production apparatus therefor |
| CN104389037A (en) * | 2014-11-26 | 2015-03-04 | 魏保平 | Nested spinning body |
| CN106222767A (en) * | 2016-08-29 | 2016-12-14 | 天津工业大学 | A kind of coaxial eccentricity device for spinning and method |
| CN107059145A (en) * | 2017-05-18 | 2017-08-18 | 武汉纺织大学 | One kind can recombinate the micro-nano spinning technique device of centrifugal rotor |
| CN107299402A (en) * | 2017-07-17 | 2017-10-27 | 苏州大学 | Centrifuge film device for spinning and micro Nano material preparation method |
-
2020
- 2020-02-13 CN CN202010090774.3A patent/CN111118743A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5514199A (en) * | 1994-09-20 | 1996-05-07 | Owens-Corning Fiberglas Technology, Inc. | Spinner for producing dual component fibers |
| JP2001181953A (en) * | 1999-12-27 | 2001-07-03 | Nippon Petrochem Co Ltd | Method for producing composite nonwoven fabric and production apparatus therefor |
| CN104389037A (en) * | 2014-11-26 | 2015-03-04 | 魏保平 | Nested spinning body |
| CN106222767A (en) * | 2016-08-29 | 2016-12-14 | 天津工业大学 | A kind of coaxial eccentricity device for spinning and method |
| CN107059145A (en) * | 2017-05-18 | 2017-08-18 | 武汉纺织大学 | One kind can recombinate the micro-nano spinning technique device of centrifugal rotor |
| CN107299402A (en) * | 2017-07-17 | 2017-10-27 | 苏州大学 | Centrifuge film device for spinning and micro Nano material preparation method |
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Application publication date: 20200508 |