Networking device for small-hole-number super-coarse-denier single filaments
By setting inclined nozzles and specifically shaped filament channels in the networker, the problem of insufficient network points for polyester FDY monofilaments was solved, resulting in better filament winding and friction, reducing filament tripping and looping, and improving the forming quality of the filament cake.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-14
AI Technical Summary
In the existing technology, polyester FDY with a fineness of more than 16D and a low number of pores forms fewer network points in conventional networkers, which makes it easy for yarn to get caught and coiled during yarn cake forming.
A network device for ultra-coarse denier monofilaments with few pores is designed. Two nozzles are set at an angle in different directions. The gas ejected from the nozzles causes the filament bundle to converge in a channel of a specific shape, changing the traditional vertical air blowing method and increasing the probability of the filament bundle entanglement in the cross section.
The increased number of network points on the monofilaments improved the cohesion and friction of the filament bundles, reduced the occurrence of strand tripping and looping, and enhanced the forming quality of the filament cake.
Smart Images
Figure CN224119175U_ABST
Abstract
Description
Technical Field
[0001] This specification relates to the field of spinning technology, and in particular to a networker for ultra-coarse denier monofilaments with a low number of pores. Background Technology
[0002] Currently, among civilian chemical fiber filaments, for polyester low-pore-count ultra-coarse denier monofilament FDY (Fully Drawn Yarn), the monofilament fineness generally exceeds 16D, such as 200D / 12f, where the monofilament fineness = 200 / 12 = 16.6. Twelve fiber monofilaments are combined to form a filament with a fineness of 200D. Due to its special rigidity and toughness, it is generally used to make home textiles, bag fabrics, tent fabrics, etc. If an irregular cross-section is added (such as flat, wavy flat, etc.), it can also be made into a stiff-haired variety of fleece, which has a considerable product premium.
[0003] In reality, when FDY varieties with thick monofilaments pass through the main networker, the conventional networker is ineffective in increasing network entanglement points due to the low number of monofilaments. Conventional main networkers typically use a single-hole, single-sided vertical air blowing method. The filament bundle's path within the networker is insufficient to create a strong, vortex-like flow from the thin-hole, thick-denier monofilaments, resulting in very few network entanglement points. One to two network points per meter is the most common. For monofilaments with a fineness exceeding 16D, there are virtually no network points. Loose network points lead to filament tangling and looping during yarn cake formation, affecting subsequent use. Utility Model Content
[0004] In view of the shortcomings of the prior art, one object of this specification is to provide a network device for low-pore-count ultra-coarse denier monofilaments, which can enable FDY processing of low-pore-count ultra-coarse denier monofilaments to produce network dots.
[0005] To achieve the above objectives, this specification provides a network device for ultra-thick denier monofilaments with a low number of pores, comprising:
[0006] Wire inlet;
[0007] An air inlet and a wire inlet are arranged opposite to each other in a first direction;
[0008] Two nozzles are connected to the air inlet, the nozzles are arranged toward the wire inlet in the first direction, and the orientation of the nozzles has a predetermined angle with the first direction; the two nozzles are oriented in opposite directions in the second direction; the second direction is perpendicular to the first direction;
[0009] The filament channel is located between the inlet and the nozzle. The cross-sectional shape of the filament channel is composed of two symmetrical shapes. The length of the filament channel in the second direction is greater than its length in the first direction. The two nozzles correspond to the two shapes respectively. The gas ejected from the nozzles gathers the filaments in the filament channel toward the center of the filament channel.
[0010] In a preferred embodiment, the two nozzles are symmetrically arranged, and the axis of symmetry of the two nozzles extends along the first direction.
[0011] In a preferred embodiment, an air intake channel is provided between the air inlet and the nozzle, with one end of each of the two air intake channels connected to the air inlet and the other end connected to the two nozzles respectively.
[0012] In a preferred embodiment, the two air intake channels are symmetrically arranged, and the axis of symmetry of the two air intake channels extends along the first direction.
[0013] In a preferred embodiment, the included angle between the two air intake channels is an acute angle.
[0014] In a preferred embodiment, the air inlet is connected to a compressed air port for introducing compressed air.
[0015] In a preferred embodiment, the cross-section of the filament channel is formed by the overlapping of two circular portions of the same size, the two circles being aligned in the second direction, and the distance between the centers of the two circles being greater than the radius of the circle and less than the diameter of the circle.
[0016] In a preferred embodiment, the nozzle is located at the end of the circle that is furthest from the wire inlet in the first direction.
[0017] In a preferred embodiment, the inlet is located at the center of the networker in the second direction.
[0018] In a preferred embodiment, the air inlet is located at the center of the network device in the second direction. Beneficial effects
[0019] The networker for low-pore-count, ultra-coarse denier monofilaments provided in this embodiment can increase the network points of low-pore filaments. Specifically, by setting two parallel nozzles with their orientations at a predetermined angle to the first direction and opposite orientations in the second direction (i.e., the two nozzles have a certain degree of inclination), the traditional vertical air blowing method can be changed. The cross-sectional shape of the filament channel in this application is also different from that of a general networker. The cross-section of the filament channel in a general networker is circular or triangular, while the cross-section of the filament channel provided in this application is composed of two symmetrical shapes, and the length of the filament channel in the second direction is greater than that in the first direction. Under dual-jet compressed air, the loose low-pore filament bundles move in opposite directions on the left and right sides of the two shapes, meet in the middle of the cross-section, collide and entangle, greatly increasing the probability of filament entanglement and intersection, increasing the probability of knots, and ultimately increasing the network points. The increased network points result in better cohesion of low-pore filaments, and the filament bundles with knots increase the number of nodes for filament-to-filament contact, increasing the friction between filaments. After these two benefits, the occurrence of strand tripping and looping in subsequent winding will be reduced.
[0020] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be employed. It should be understood that the scope of the embodiments of the present invention is not limited thereto.
[0021] Features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.
[0022] It should be emphasized that the term "including / comprises" as used herein refers to the presence of a feature, whole, step, or component, but does not exclude the presence or addition of one or more other features, wholes, steps, or components. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of a network device for ultra-coarse denier monofilaments with few pores provided in this embodiment.
[0025] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;
[0026] Figure 3 This is a schematic diagram illustrating the working principle of a networker provided in this embodiment.
[0027] Explanation of reference numerals in the attached figures:
[0028] 1. Fiber inlet; 2. Air inlet; 3. Nozzle; 4. Fiber bundle channel; 5. Air inlet channel; 6. Compressed air inlet; 7. Fiber bundle; X, first direction; Y, second direction. Detailed Implementation
[0029] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
[0030] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or may be interposed with another element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or may be interposed with another element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.
[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0032] Please see Figures 1 to 3 To address the problem that existing equipment produces coarse polyester FDY with loose filament bundles 7 and no network points (the main networker cannot apply network points), this application provides a networker for ultra-coarse denier monofilaments with few holes, comprising: a filament inlet 1, an air inlet 2, a filament bundle channel 4, and two nozzles 3.
[0033] The air inlet 2 and the yarn inlet 1 are arranged opposite each other in the first direction X. Two nozzles 3 are connected to the air inlet 2. The nozzles 3 are positioned towards the yarn inlet 1 in the first direction X, and the orientation of the nozzles 3 forms a predetermined angle with the first direction X. The two nozzles 3 are oriented in opposite directions in the second direction Y. The second direction Y is perpendicular to the first direction X. Thus, the orientation of both nozzles 3 has components in the first direction X and components in the second direction Y, and the components in the first direction X are oriented in the same direction, while the components in the second direction Y are oriented in opposite directions.
[0034] The filament channel 4 is located between the inlet 1 and the nozzle 3. The cross-sectional shape of the filament channel 4 is composed of two symmetrical shapes aligned in the second direction Y. The length of the filament channel 4 in the second direction Y is greater than its length in the first direction X. The two nozzles 3 correspond to the two shapes respectively, and the gas ejected from the nozzles 3 gathers the filaments 7 within the filament channel 4 towards the center of the filament channel 4.
[0035] The network device for low-pore-count, ultra-coarse denier monofilaments provided in this embodiment can increase the number of network points for low-pore filaments. Specifically, by setting two parallel nozzles 3, with the nozzles 3 facing at a predetermined angle to the first direction X and the two nozzles 3 facing opposite directions in the second direction Y, i.e., the two nozzles 3 have a certain degree of inclination, the traditional vertical blowing method can be changed. The cross-sectional shape of the filament channel 4 in this application is also different from that of a general networker. The cross-section of the filament channel of a general networker is circular or triangular, while the cross-section of the filament channel 4 provided in this application is composed of two symmetrical shapes. The length of the filament channel 4 in the second direction Y is greater than the length in the first direction X. Under the dual-jet pressure air, the loose filament bundles 7 with fewer holes move the single filaments on the left and right sides in opposite directions of the two shapes, meet in the middle of the cross-section, collide and entangle, greatly increasing the probability of single filament entanglement and intersection, increasing the probability of knots, and ultimately increasing the number of network points. The better cohesion of the filaments with fewer holes in the network points, and the filament bundles 7 with knots increase the number of nodes for contact between filaments, increasing the friction between filaments. After the two gains, the occurrence of strand tripping and looping in subsequent winding will be reduced.
[0036] In this embodiment, the two nozzles 3 are symmetrically arranged, and the axis of symmetry of the two nozzles 3 extends along the first direction X, so that air can be blown evenly on both sides of the filament bundle 7.
[0037] like Figure 2As shown, an air intake channel 5 is provided between the air inlet 2 and the nozzle 3. One end of each of the two air intake channels 5 is connected to the air inlet 2, and the other end is connected to the two nozzles 3 respectively. Specifically, the two air intake channels 5 are symmetrically arranged, and the axis of symmetry of the two air intake channels 5 extends along the first direction X. Preferably, the included angle between the two air intake channels 5 is an acute angle, which can minimize the distance between the nozzle 3 and the air inlet 2 and reduce the loss of compressed air in the path.
[0038] In this embodiment, the air inlet 2 is connected to a compressed air inlet 6 for introducing compressed air. Although this application provides two nozzles 3, only one compressed air inlet 6 is needed, which saves space in terms of structure and reduces the need for consumable parts.
[0039] like Figure 3 As shown, the cross-section of the filament channel 4 can be formed by overlapping two circular parts of the same size. The two circles are aligned in the second direction Y, and the distance between the centers of the two circles is greater than the radius of the circle and less than the diameter of the circle. Figure 3 The arrows in the diagram indicate the direction of compressed air flow.
[0040] Specifically, the nozzle 3 is located at the end of the circle furthest from the inlet 1 in the first direction X. Under the dual-jet pressure, the loose, low-pore fiber bundle 7 moves the single filaments on the left and right sides in opposite directions to the two circles, meeting and colliding in the middle of the two circles, greatly increasing the probability of single filament entanglement and intersection, increasing the probability of knots, and ultimately increasing the number of network points.
[0041] Preferably, the yarn inlet 1 is located at the center of the network device in the second direction Y. The air inlet 2 is also located at the center of the network device in the second direction Y.
[0042] Overall, the novel networker described in this application is significantly different from the networkers used in conventional civilian filament production processes, and can solve the problem of loose filament bundles 7 without network points when existing equipment produces coarse monofilament polyester FDY.
[0043] It should be noted that in the description of this specification, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this specification, unless otherwise stated, "a plurality of" means two or more.
[0044] Any numerical values cited herein include all values ranging from a lower limit to an upper limit, increasing by one unit, with at least two units between any lower and any higher value. For example, if the quantity of a component or the value of a process variable (e.g., temperature, pressure, time, etc.) is described as being from 1 to 90, preferably from 20 to 80, more preferably from 30 to 70, the purpose is to illustrate that values such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 are also explicitly listed in this specification. For values less than 1, a unit is appropriately considered to be 0.0001, 0.001, 0.01, 0.1, etc. These are merely examples intended for explicit expression, and it can be assumed that all possible combinations of values listed between the minimum and maximum values are explicitly described in this specification in a similar manner.
[0045] Unless otherwise stated, all ranges include the endpoints and all numbers between them. The terms "approximately" or "about" used with ranges apply to both endpoints of the range. Thus, "approximately 20 to 30" is intended to cover "approximately 20 to approximately 30," including at least the specified endpoints.
[0046] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified elements, components, parts, or steps, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute included by “may” is optional.
[0047] Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The use of the word "a" or "an" to describe an element, component, part, or step does not imply the exclusion of other elements, components, parts, or steps.
[0048] It should be understood that the above description is for illustrative purposes and not for limitation. Many embodiments and applications beyond the provided examples will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this teaching should not be determined by reference to the above description, but rather by reference to the appended claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended as a waiver of that subject matter, nor should it be construed as an indication that the inventors have not considered that subject matter as part of the disclosed utility model subject matter.
Claims
1. A network device for ultra-thick denier monofibers with few pores, characterized in that, include: Wire inlet; An air inlet and a wire inlet are arranged opposite to each other in a first direction; Two nozzles are connected to the air inlet, the nozzles are arranged toward the wire inlet in the first direction, and the orientation of the nozzles has a predetermined angle with the first direction; the two nozzles are oriented in opposite directions in the second direction; the second direction is perpendicular to the first direction; The filament channel is located between the inlet and the nozzle. The cross-sectional shape of the filament channel is composed of two symmetrical shapes. The length of the filament channel in the second direction is greater than its length in the first direction. The two nozzles correspond to the two shapes respectively. The gas ejected from the nozzles gathers the filaments in the filament channel toward the center of the filament channel.
2. The network device for ultra-thick denier monofibers with few pores according to claim 1, characterized in that, The two nozzles are symmetrically arranged, and the axis of symmetry of the two nozzles extends along the first direction.
3. The network device for ultra-thick denier monofilaments with few pores according to claim 1, characterized in that, An air intake channel is provided between the air inlet and the nozzle. One end of each of the two air intake channels is connected to the air inlet, and the other end is connected to the two nozzles respectively.
4. The network device for ultra-thick denier monofilaments with few pores according to claim 3, characterized in that, The two air intake channels are symmetrically arranged, and the axis of symmetry of the two air intake channels extends along the first direction.
5. The network device for ultra-thick denier monofibers with few pores according to claim 4, characterized in that, The angle between the two air intake channels is an acute angle.
6. The network device for ultra-thick denier monofilaments with few pores according to claim 1, characterized in that, The air inlet is connected to a compressed air port for introducing compressed air.
7. The network device for ultra-coarse denier monofilaments with few pores according to claim 1, characterized in that, The cross-section of the filament channel is formed by the overlapping of two identical circular portions, which are aligned in the second direction. The distance between the centers of the two circles is greater than the radius of the circle and less than the diameter of the circle.
8. The network device for ultra-thick denier monofilaments with few pores according to claim 7, characterized in that, The nozzle is located at the end of the circle that is furthest from the wire inlet in the first direction.
9. The network device for ultra-thick denier monofilaments with few pores according to claim 1, characterized in that, The wire inlet is located in the middle of the networker in the second direction.
10. The network device for ultra-coarse denier monofilaments with few pores according to claim 1, characterized in that, The air inlet is located in the middle of the network device in the second direction.