CN113122936A - Spinning device for producing non-woven fabric and PP spun-bonded non-woven fabric, PET spun-bonded non-woven fabric and PE spun-bonded non-woven fabric produced by spinning device - Google Patents
Spinning device for producing non-woven fabric and PP spun-bonded non-woven fabric, PET spun-bonded non-woven fabric and PE spun-bonded non-woven fabric produced by spinning device Download PDFInfo
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- CN113122936A CN113122936A CN202110554178.0A CN202110554178A CN113122936A CN 113122936 A CN113122936 A CN 113122936A CN 202110554178 A CN202110554178 A CN 202110554178A CN 113122936 A CN113122936 A CN 113122936A
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- 238000009987 spinning Methods 0.000 title claims abstract description 163
- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 71
- 239000000835 fiber Substances 0.000 claims abstract description 33
- 238000009826 distribution Methods 0.000 claims abstract description 15
- 238000005520 cutting process Methods 0.000 claims description 16
- 239000000178 monomer Substances 0.000 claims description 11
- 239000000155 melt Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 21
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000004743 Polypropylene Substances 0.000 description 13
- 239000004698 Polyethylene Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
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Classifications
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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
- D01D4/00—Spinnerette packs; Cleaning thereof
-
- 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
- D04H3/005—Synthetic yarns or filaments
- D04H3/007—Addition polymers
-
- 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
- D04H3/005—Synthetic yarns or filaments
- D04H3/009—Condensation or reaction polymers
- D04H3/011—Polyesters
-
- 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
- D04H3/04—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 in rectilinear paths, e.g. crossing at right angles
- D04H3/045—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 in rectilinear paths, e.g. crossing at right angles for net manufacturing
-
- 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
- D04H3/14—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 yarns or filaments produced by welding
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention discloses a spinning device for producing non-woven fabrics and PP spun-bonded non-woven fabrics, PET spun-bonded non-woven fabrics and PE spun-bonded non-woven fabrics produced by the spinning device. PP spunbonded nonwoven fabric increases the distribution arrangement of fibers in the transverse direction, and the MD strength/CD strength is less than 1.5. The PET spun-bonded non-woven fabric has increased transverse fiber distribution arrangement and MD strength/CD strength lower than 1.8. The transverse fiber distribution arrangement is increased by the PE spun-bonded non-woven fabric, and the MD strength/CD strength is less than 1.8. The invention improves the product performance, improves the comprehensive yield, is beneficial to improving the production speed, greatly reduces the requirement on the control capability, greatly reduces the production difficulty and is convenient to expand.
Description
Technical Field
The invention relates to a spinning device for producing non-woven fabric, and also relates to PP spun-bonded non-woven fabric, PET spun-bonded non-woven fabric and PE spun-bonded non-woven fabric.
Background
The non-woven fabric does not need a fabric formed by spinning woven fabric, but is formed by arranging textile short fibers or filaments in an oriented or random mode to form a fiber web structure and then reinforcing the fiber web structure by adopting a mechanical method, a thermal bonding method or a chemical method. It directly uses high polymer slice, short fiber or filament to form a novel fiber product with soft, air-permeable and plane structure through various fiber web forming methods and consolidation techniques. The non-woven fabric breaks through the traditional spinning principle and has the characteristics of short process flow, high production speed, high yield, low cost, wide application, multiple raw material sources and the like.
The width of the existing non-woven fabric is mostly 1600mm, 2400mm and 3200mm, and in the production process of the non-woven fabric, because the length of the spinning component corresponds to the width of the non-woven fabric of 1600mm, 2400mm and 3200mm, the production capacity requires to increase the width of a spinneret plate, so that the difficulty of spinning cooling is increased, and the problem of the production process can be brought. Under the influences of stress release of metal materials, uneven high-temperature deformation, accurate calculation requirement of a melt flow channel and the like, the required control capability is stronger, great difficulty is brought to width increase and capacity improvement of the existing non-woven fabric, and the production cost is extremely high
Disclosure of Invention
The invention provides the spinning device for producing the non-woven fabric, which improves the product performance, improves the comprehensive yield, is beneficial to improving the production speed, greatly reduces the requirement on the control capability, greatly reduces the production difficulty and is convenient to expand.
In order to solve the technical problems, the technical scheme of the invention is as follows: the spinning device for producing the non-woven fabric is positioned above the swing fiber net-forming device and used for receiving the melt conveyed by the metering pump and uniformly dividing the melt into a plurality of strands of thin streams, and comprises a plurality of spinning die heads which are arranged in an array mode, wherein the number of the spinning die heads distributed on a cutting line along the running direction of a conveying belt of the swing fiber net-forming device is equal to that of the spinning die heads, and the spinning die heads and the running direction of the conveying belt of the swing fiber net-forming device are obliquely and/or vertically arranged.
As a preferred technical scheme, the length of the spinning die head is not more than the width of the non-woven fabric.
As a preferable technical scheme, the angle formed by inclining the spinning die head and the running direction of the cycloidal silk-laying device is 20-70 degrees.
Preferably, the spinning dies are arranged in parallel and/or at an angle.
According to a preferable technical scheme, the spinning die head comprises a spinning box, a feeding channel is arranged above the spinning box, a spinneret plate is connected below the spinning box, and spinneret holes are densely distributed in the spinneret plate.
According to the preferable technical scheme, the discharge end of the feeding channel is connected with a material distribution plate, a heating pipe is arranged above the material distribution plate, a single suction groove is formed in the periphery of the lower portion of the spinning box and communicated with the inside of the spinning box inwards, and a single suction pipe is connected to the outside of the single suction groove.
Preferably, a sealing air bag is arranged on the outer periphery of the spinneret plate; and a fixed connecting column is connected above the spinning box.
The invention provides a PP (polypropylene) spunbonded non-woven fabric produced by a spinning device for producing non-woven fabric, which is added with transverse fiber distribution arrangement, and MD strength/CD strength is less than 1.5.
The invention provides a PET spun-bonded non-woven fabric produced by a spinning device for producing non-woven fabric, wherein the PET spun-bonded non-woven fabric is additionally provided with transverse fiber distribution, and the MD strength/CD strength is less than 1.8.
The invention provides a PE (polyethylene) spun-bonded non-woven fabric produced by a spinning device for producing non-woven fabric, wherein the PE spun-bonded non-woven fabric is additionally provided with transverse fiber distribution, and the MD strength/CD strength is less than 1.8.
By adopting the technical scheme, the running directions of the spinning die head and the conveying belt of the swinging-silk-forming device are obliquely arranged, so that the transverse strength of the PP spunbonded non-woven fabric is improved, the ratio of the longitudinal and transverse strengths of the PP spunbonded non-woven fabric is reduced to 1.0-1.5 from the traditional 1.5-2, and the product performance is improved. The angle adjustment of the fiber structure can be realized through the inclined angle of the running direction of the conveying belt of the spinning die head and the swinging-silk-forming device, the traditional fiber net structure produced by the parallel arrangement of the spinning die head has more longitudinal fiber arrangement, less transverse fiber arrangement and difficult adjustment of the fiber direction, and the longitudinal and transverse strength ratio of the product is 1.5-2.0. The design of a plurality of spinning die heads increases the number of the spinning die heads, increases the width of the spinning die heads on the whole, can improve the yield of products, can provide sufficient melt trickle, and is favorable for improving the production speed. Meanwhile, compared with the traditional single spinning die head design, the combined design of the plurality of spinning die heads has the advantages that the length and the width are separated from the limitation of the size of the traditional spinning die head, the combined design can be expanded according to actual requirements, the requirement on the control capacity is greatly reduced, and the production difficulty is greatly reduced. The invention improves the product performance, improves the comprehensive yield, is beneficial to improving the production speed, greatly reduces the requirement on the control capability, greatly reduces the production difficulty and is convenient to expand.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention, showing a top-view arrangement of the spinning die;
FIG. 2 is a schematic illustration of FIG. 1 taken in transverse and longitudinal extension;
FIG. 3 is a schematic structural view of the spinning die according to the first embodiment of the present invention;
FIG. 4 is a side view of the spinning die of the first embodiment of the present invention;
FIG. 5 is a sectional view taken along line A-A of FIG. 4;
FIG. 6 is a sectional view taken along line B-B of FIG. 4;
FIG. 7 is a front view of the spinning die of the first embodiment of the present invention;
fig. 8 is a schematic structural view of the spinneret plate according to the first embodiment of the present invention;
FIG. 9 is a surface view of a sample according to a first embodiment of the present invention;
FIG. 10 is a schematic structural view of a second embodiment of the present invention, showing a top-view arrangement of the spinning die;
FIG. 11 is a schematic illustration of FIG. 10 taken in transverse and longitudinal extension;
FIG. 12 is a schematic structural view of a third embodiment of the present invention, showing a top-view arrangement of the spinning die;
FIG. 13 is a schematic illustration of FIG. 12 taken in transverse and longitudinal extension;
FIG. 14 is a schematic structural view of a fourth embodiment of the present invention, showing a top-view arrangement of the spinning die;
FIG. 15 is a schematic illustration of FIG. 14 taken in transverse and longitudinal extension;
FIG. 16 is a schematic structural view of example five of the present invention, showing the spinning die in a top-down arrangement;
FIG. 17 is a schematic structural view of example six of the present invention, showing the spinning die in a top view orientation arrangement.
In the figure: 1-a spinning die head; 2-spinning box; 3-a feed channel; 4-spinneret plate; 5-spinneret orifices; 6-material distributing plate; 7-heating a tube; 8-monomer aspiration groove; 9-a single suction tube; 10-sealing the air bag; 11-fixed connection column.
Detailed Description
The invention is further illustrated below with reference to the figures and examples. In the following detailed description, certain exemplary embodiments of the present invention are described by way of illustration only. Needless to say, a person skilled in the art realizes that the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.
In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The first embodiment is as follows: as shown in figure 1 of the drawings, in which,
the spinning device for producing the non-woven fabric is positioned above the yarn swinging and net forming device, is used for receiving the conveyed melt and uniformly dividing the melt into a plurality of strands of thin streams, comprises a plurality of spinning die heads 1 which are arranged, the number of the spinning die heads 1 which are distributed is equal on a cutting line along the running direction of a conveying belt of the yarn swinging and net forming device, and the spinning die heads 1 and the running direction of the conveying belt of the yarn swinging and net forming device are obliquely arranged.
In fig. 1, five spinning die heads 1 are shown in an arrangement, the number of the spinning die heads 1 can be increased transversely or longitudinally according to actual requirements, the number of the spinning die heads 1 is only used for better explaining the embodiment, the five spinning die heads 1 are obliquely arranged with the running direction of a conveyer belt of a swing wire netting device, so that the transverse strength of the PP spunbonded non-woven fabric is improved, the ratio of the longitudinal strength to the transverse strength of the PP spunbonded non-woven fabric is reduced from the traditional 1.5-2 to 1.0-1.5, and the product performance is improved.
The embodiment can pass through spinning die head 1 and the realization of pendulum silk web-forming device's conveyer belt traffic direction inclination angle to fibrous structure's angular adjustment, and the tradition the longitudinal fiber arrangement of fibrous web structure that spinning die head 1 parallel arrangement produced is many, and horizontal fiber arrangement is few, and the fibre direction is difficult to adjust, and the product is indulged horizontal strength ratio 1.5-2.0, can utilize different through this embodiment design 1 angle of spinning die head changes indulge horizontal fiber structure, and the fibre presents certain angle with equipment traffic direction and arranges after the fibre spinning at lapping position to increase horizontal fiber distribution, reached the effect of adjusting fibrous structure, make the vertical and horizontal strength ratio of PP spunbonded nonwoven realize 1.0-1.5.
The lengths of the first spinning die head 1 and the last spinning die head 1 are shorter, for example (the following numerical values are only used for better explaining the embodiment), the lengths of the first spinning die head 1 and the last spinning die head 1 are 800mm, the lengths of the middle three spinning die heads 1 are 1600mm, transverse and longitudinal extension can be performed, the transverse extension is suitable for width extension, such as 1600mm and 3200mm of width, and the longitudinal extension can provide sufficient melt trickle due to the plurality of spinning die heads 1, so that the production speed of the swing-silk-forming and the subsequent processes thereof can be improved, and the productivity can be greatly improved. Meanwhile, the requirement on the control capability of the spinning die head 1 only needs to be maintained at the requirement of the size of 800mm or 1600mm in width, the requirement on the control capability is greatly reduced, and the production difficulty is greatly reduced.
The number of the spinning die heads 1 distributed on the cutting line along the running direction of the conveying belt of the swing-silk-forming device is equal, the structure can ensure that the melt trickle falls onto the swing-silk-forming device after being stretched, and the thickness of the product running on the conveying belt of the swing-silk-forming device is consistent. Particularly, the end arrangement of the spinning die heads 1 ensures the butt joint, as shown in fig. 1, the tail end of the first spinning die head 1 is butted with the head end of the third spinning die head 1, and the tail end of the third spinning die head 1 is butted with the head end of the fifth spinning die head 1 on a cutting line in the running direction of a conveyer belt of the swing-net device, so that the number of the spinning die heads 1 on the cutting line is kept the same as that of other positions. The number of the spinning die heads 1 is not fixed, and the spinning die heads 1 with the middle 1600mm are in one group or multiple groups. The length of the single spinning die head 1 can be adjusted, the length of each spinning die head 1 can be 0.8 m-4.2 m, and the overall width of the non-woven production equipment can be 0.8 m-10 m after the non-woven production equipment is arranged and installed through the combined design of the number and the length of the combined spinning die heads 1. The actual equipment width can be varied in both the transverse and longitudinal dimensions, increasing or decreasing the number of spinning dies 1 in the arrangement. Fig. 2 is a schematic diagram showing the horizontal and vertical extension of the array of fig. 1.
The length of the spinning die 1 is not more than the width of the nonwoven fabric. The length of the spinning die head 1 is the width of the non-woven fabric or less than the width of the non-woven fabric, the requirement on the control capability of the spinning die head 1 is reduced, and the manufacturing cost of the spinning die head 1 is greatly reduced on the premise of ensuring the production capacity and the product performance.
The angle formed by the inclined arrangement of the spinning die head 1 and the running direction of the swing wire netting device is 20-70 degrees. The angle can be adjusted according to the actual situation, for example, 30 degrees, 45 degrees, etc.
The spinning die heads 1 are arranged in parallel, and the structure is convenient to arrange.
Referring to fig. 3, 4, 5, 6, 7 and 8, the spinning die head 1 includes a spinning manifold 2, a feeding channel 3 is provided above the spinning manifold 2, a spinneret 4 is connected below the spinning manifold 2, and spinneret holes 5 are densely distributed on the spinneret 4. The melt enters from the feed channel 3 and flows out through the spinneret orifice 5 to become a fine flow.
The discharge end of charge passage 3 is connected with divides flitch 6, and the top of dividing flitch 6 is equipped with heating pipe 7, and the below periphery of spinning case 2 is equipped with monomer suction groove 8, and inside 8 inside intercommunication spinning case 2 in monomer suction groove, the monomer suction groove 8 outwards was connected with monomer suction tube 9. Divide flitch 6 can evenly drain the top of spinneret 4 with the fuse-element, can discharge the flue gas after the fuse-element melts through monomer suction tube 9 and monomer suction groove 8.
A sealing air bag 10 is arranged on the outer periphery of the spinneret plate 4; the upper part of the spinning box 2 is connected with a fixed connecting column 11. The sealing air bag 10 can ensure the sealing performance when being butted with a stretching process, and the fixed connecting column 11 is convenient to mount.
The swinging-wire-laying device and the stretching process corresponding device are conventional devices for producing non-woven fabrics, are not in the protection range defined by the invention, are known to the technical personnel in the field, and are not described in detail herein.
As shown in fig. 9, the PP spun-bonded nonwoven fabric produced by the spinning apparatus for nonwoven fabric production has increased fiber distribution in the cross direction and MD/CD strength < 1.5.
The results of the comparison of the PP spunbonded nonwoven of the present example with the PP spunbonded products of the current market are given in the following table:
comparative test conditions: the width of the test sample is 50mm, the test fixture is 100mm, and the stretching speed is 300 mm/min.
The PET spunbonded non-woven fabric produced by the spinning device for the non-woven fabric production is added with transverse fiber distribution arrangement, and the MD strength/CD strength is less than 1.8.
The results of the PET spunbonded nonwoven of this example compared to the existing commercial PET spunbonded product are given in the following table:
comparative test conditions: the width of the test sample is 50mm, the test fixture is 100mm, and the stretching speed is 300 mm/min.
The PE spun-bonded non-woven fabric produced by the spinning device for producing the non-woven fabric is added with transverse fiber distribution, and the MD strength/CD strength is less than 1.8.
The results of the PE spunbond nonwoven fabric of this example compared to the existing market PE spunbond product are given in the following table:
comparative test conditions: the width of the test sample is 50mm, the test fixture is 100mm, and the stretching speed is 300 mm/min.
The PP spunbonded nonwoven fabric, the PET spunbonded nonwoven fabric and the PE spunbonded nonwoven fabric can also be used for producing corresponding products with other gram weights, the performances are greatly improved compared with the same type of products in the market, and the performance slightly different due to the gram weight difference can be confirmed without objection for the technical personnel in the field, and the products are required to fall into the protection scope of the application.
Example two: as shown in fig. 10, the difference from the first embodiment is that the arrangement positions of the spinning die heads 1 are different, the tail ends of the first, second, third and fourth spinning die heads 1 are located on an inclined line which is obliquely arranged with the running direction of the conveyer belt of the swing-wire netting device, and the head ends of the second, third, fourth and fifth spinning die heads 1 are located on an inclined line which is obliquely arranged with the running direction of the conveyer belt of the swing-wire netting device. The tail end of the first spinning die head 1 is butted with the head end of the third spinning die head 1, and the tail end of the third spinning die head 1 is butted with the head end of the fifth spinning die head 1 on a cutting line in the running direction of a conveyer belt of the swing-wire netting device, so that the number of the spinning die heads 1 on the cutting line is kept the same as that of other positions. As shown in fig. 11, when the transverse and longitudinal extensions are performed, the number of spinning dies 1 is increased in an arrangement manner.
Example three: as shown in fig. 12, the difference from the first embodiment lies in that the arrangement positions of the spinning die heads 1 are different, the first and fourth spinning die heads 1 are arranged perpendicular to the running direction of the conveyer belt of the swing-wire-laying device, the second and third spinning die heads 1 are arranged obliquely to the running direction of the conveyer belt of the swing-wire-laying device, and an angle combination mode is adopted, and the spinning die heads 1 are arranged in parallel and in an angle combination mode. Wherein the tail end of the second spinning die head 1 and the head end of the third spinning die head 1 are butted on a cutting line in the running direction of a conveyer belt of the swing-net forming device, so that the number of the spinning die heads 1 on the cutting line is kept the same as that of other positions. As shown in fig. 13, when the transverse and longitudinal extensions are performed, the number of spinning dies 1 is increased in an arrangement manner.
Example four: as shown in fig. 14, the difference from the first embodiment lies in that the arrangement positions of the spinning die heads 1 are different, the first and fifth spinning die heads 1 are arranged perpendicular to the running direction of the conveyer belt of the swing-wire-laying device, the second, third and fourth spinning die heads 1 are arranged obliquely to the running direction of the conveyer belt of the swing-wire-laying device, and an angle combination mode is adopted, and the spinning die heads 1 are arranged in parallel and in an angle combination mode. Wherein the tail end of the second spinning die head 1 is butted with the head end of the third spinning die head 1, and the tail end of the third spinning die head 1 is butted with the head end of the fourth spinning die head 1 on a cutting line in the running direction of a conveyer belt of the swing-wire netting device, so that the number of the spinning die heads 1 on the cutting line is kept the same as that of other positions. As shown in fig. 15, when the transverse and longitudinal extensions are performed, the number of spinning dies 1 is increased in an arrangement manner.
Example five: as shown in fig. 16, the difference from the first example is that the spinning dies 1 are arranged at different positions, and the longitudinal direction is extended, wherein the tail end of the first spinning die 1 and the head end of the second spinning die 1, the tail end of the second spinning die 1 and the head end of the third spinning die 1, and the tail end of the fourth spinning die 1 and the head end of the fifth spinning die 1 are butted on the cutting line in the running direction of the conveyer belt of the web laying device, so that the number of the spinning dies 1 on the cutting line is kept the same as that of other positions.
Example six: as shown in fig. 17, unlike the first example, the spinning dies 1 are arranged at different positions, and the spinning dies 1 are arranged in parallel and at an angle while being extended in the longitudinal direction. Wherein the tail end of the second spinning die head 1 is butted with the head end of the third spinning die head 1, and the tail end of the third spinning die head 1 is butted with the head end of the fourth spinning die head 1 on a cutting line in the running direction of a conveyer belt of the swing-wire netting device, so that the number of the spinning die heads 1 on the cutting line is kept the same as that of other positions.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The spinning device for producing the non-woven fabric is positioned above the swinging-silk-forming device and used for receiving the conveyed melt and uniformly dividing the melt into a plurality of strands of thin streams, and is characterized in that: the device comprises a plurality of spinning die heads (1) which are arranged, wherein the number of the spinning die heads (1) which are distributed on a cutting line along the running direction of a conveying belt of a swing-silk-forming device is equal, and the spinning die heads (1) are inclined and/or vertical to the running direction of the conveying belt of the swing-silk-forming device.
2. The spinning apparatus for producing a nonwoven fabric according to claim 1, wherein: the length of the spinning die head (1) is not more than the width of the non-woven fabric.
3. The spinning apparatus for producing a nonwoven fabric according to claim 2, wherein: the angle formed by the spinning die head (1) and the running direction of the cycloidal silk-forming device in an inclined mode is 20-70 degrees.
4. The spinning apparatus for producing a nonwoven fabric according to claim 1, wherein: the spinning die heads (1) are arranged in parallel and/or at an angle.
5. The spinning apparatus for producing a nonwoven fabric according to claim 1, wherein: the spinning die head (1) comprises a spinning box (2), a feeding channel (3) is arranged above the spinning box (2), a spinneret plate (4) is connected below the spinning box (2), and spinneret holes (5) are densely distributed in the spinneret plate (4).
6. The spinning apparatus for producing a nonwoven fabric according to claim 5, wherein: the discharge end of charge-in passage (3) is connected with divides flitch (6), the top of dividing flitch (6) is equipped with heating pipe (7), the below periphery of spinning case (2) is equipped with monomer suction groove (8), monomer suction groove (8) inwards communicate inside spinning case (2), monomer suction groove (8) are outwards connected with monomer suction tube (9).
7. The spinning apparatus for producing a nonwoven fabric according to claim 5 or 6, wherein: a sealing air bag (10) is arranged on the periphery of the outer side of the spinneret plate (4); the upper part of the spinning box (2) is connected with a fixed connecting column (11).
8. The PP spun-bonded non-woven fabric produced by the spinning device for producing the non-woven fabric is characterized in that: the PP spunbonded non-woven fabric increases the distribution arrangement of transverse fibers, and the MD strength/CD strength is less than 1.5.
9. The PET spun-bonded non-woven fabric produced by the spinning device for producing the non-woven fabric is characterized in that: the PET spunbonded nonwoven fabric is added with transverse fiber distribution arrangement, and the MD strength/CD strength is less than 1.8.
10. The PE spun-bonded non-woven fabric produced by the spinning device for producing the non-woven fabric is characterized in that: the transverse fiber distribution arrangement is increased, and the MD strength/CD strength is less than 1.8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110554178.0A CN113122936A (en) | 2021-05-20 | 2021-05-20 | Spinning device for producing non-woven fabric and PP spun-bonded non-woven fabric, PET spun-bonded non-woven fabric and PE spun-bonded non-woven fabric produced by spinning device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110554178.0A CN113122936A (en) | 2021-05-20 | 2021-05-20 | Spinning device for producing non-woven fabric and PP spun-bonded non-woven fabric, PET spun-bonded non-woven fabric and PE spun-bonded non-woven fabric produced by spinning device |
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| CN113122936A true CN113122936A (en) | 2021-07-16 |
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