Tubular side air suction yarn separator for drafting

Abstract

The utility model relates to the technical field of non-woven fabric manufacturing equipment, in particular to a tubular side air suction yarn separator for drafting. The upper part of a yarn separator is arranged at the lower part of a drafting tube; the silk separator is of a vertically-through tubular structure, the upper part of the silk separator is a connecting port connected with the drafting tube, and the lower part of the silk separator is a silk outlet; a through hole for assembling the air suction interface is formed in the pipe wall of the yarn separator; the air suction connector is connected with external negative pressure equipment, and air is sucked outwards from the interior of the yarn separator through an air suction structure. And the fiber bundle is ejected from a lower fiber outlet of the fiber separator and then reaches a fiber swinging device or is directly paved on a fiber paving machine. According to the technical scheme, the problems of product quality problems such as doubling, cloud spots and the like of products due to the fact that an existing filament separator in the prior art is poor in filament bundle dispersion effect and cannot completely disperse filament bundles into monofilaments are solved.

Description

Technical Field

[0001] The invention discloses a side air suction separator for tubular drafting, which relates to the technical field of nonwoven fabric manufacturing equipment, and in particular to a side air suction separator for tubular drafting. Background Art

[0002] In the spunbond nonwoven fabric production line with tubular drafting, when the filament bundles and the drafting airflow come out of the drafting device, the filament bundles will gather in the center of the drafting tube. In order to improve the uniformity of the product, the gathered filament bundles must be dispersed into evenly distributed single filaments, that is, split filaments, and then formed into a uniform fiber web by swinging the filaments or directly spreading the single filaments evenly on the web-forming machine.

[0003] In order to disperse the gathered filament bundles into single filaments, the commonly used filament separation methods are air flow separation, mechanical separation and electrostatic separation.

[0004] The air flow and electrostatic separation methods have less yarns, but the fiber dispersion effect is limited and cannot be completely dispersed into single fibers. The final product has many "cloud spots", which affects the quality of the product.

[0005] The mechanical fiber separation method has a good fiber dispersion effect and less "cloud spots", but it is easy to produce fiber parallelism, which affects the quality of the product.

[0006] In view of the problems existing in the above-mentioned prior art, it is very necessary to study and design a new type of side suction wire separator for tubular drawing, so as to overcome the problems existing in the prior art. Summary of the invention

[0007] According to the technical problem that the existing wire separator proposed in the prior art has poor dispersion effect of the wire bundle and cannot be completely dispersed into single wires, resulting in product quality problems such as parallel wire and "cloud spots", a tubular drafting side suction wire separator is provided. The present invention mainly distributes suction interfaces symmetrically and evenly on the tube wall of the wire separator, and an external negative pressure device sucks air from the inside of the wire separator to the outside through the suction interface to disperse the wire bundle, thereby ensuring that the wire bundle is dispersed into single wires, improving the dispersion effect and avoiding the problems of parallel wire and "cloud spots" in the product.

[0008] The technical means adopted by the present invention are as follows:

[0009] A side suction wire separator for tubular drawing, the upper part of which is mounted on the lower part of the drawing tube;

[0010] Furthermore, the wire separator is a tubular structure that penetrates from top to bottom, the upper part of which is a connection port connected to the drawing tube, and the lower part is a wire outlet;

[0011] Furthermore, a through hole for assembling an air suction interface is provided on the tube wall of the wire separator;

[0012] Furthermore, the air suction interface is connected to an external negative pressure device, and air is sucked outward from the inside of the wire separator through the air suction interface;

[0013] Furthermore, the fiber bundle is ejected from the lower outlet of the fiber separator and then goes to the fiber swing device or is directly laid on the fiber laying machine.

[0014] Furthermore, the wire separator includes: a cylindrical wire separator, a split wire separator and a variable diameter flat-mouth wire separator.

[0015] Furthermore, the connection port at the upper part and the wire outlet at the lower part of the cylindrical wire separator are both circular openings;

[0016] Furthermore, the diameter of the thread outlet is not less than the diameter of the connection port.

[0017] Furthermore, the split type wire separator is integrally processed by the upper cylinder part and the diameter-changing flat mouth part;

[0018] Furthermore, the upper cylinder is a cylindrical structure, the upper part of which is a connecting port with a circular opening, and the lower part is a circular opening connected to the reduced diameter flat opening;

[0019] Further, the diameter of the circular opening at the lower portion of the upper cylinder is not less than the diameter of the circular opening of the upper connection port;

[0020] Furthermore, the lower part of the diameter-reducing flat-mouth part is an oblate-circular wire outlet, and the upper part is a circular outlet, which are assembled with the circular outlet at the lower end of the upper cylinder part to form a complete wire separator.

[0021] Furthermore, the upper connection port of the variable diameter flat-mouth type wire splitter is a circular port, the lower wire outlet port is an oblate circular port, and the cylinder in the middle is a deformed cylinder structure.

[0022] Further, the number of air intake ports is an even number;

[0023] Furthermore, at least two identical air suction interfaces are symmetrically arranged on the same horizontal plane of the wire separator.

[0024] Furthermore, the air suction interface is installed on the through holes on the tube wall of the wire separator which are symmetrically distributed with the center of the wire separator as the center of the circle.

[0025] Furthermore, the air suction interface is installed on the through hole on the tube wall of the wire separator in a relatively spaced manner.

[0026] Furthermore, the air suction interface is installed on the through hole on the tube wall of the wire separator in a spiral form.

[0027] Compared with the prior art, the present invention has the following advantages:

[0028] 1. The side suction separator for tubular drawing provided by the present invention has a suction interface connected to an external negative pressure device, and suction is performed from the inside of the separator to the outside through the suction structure, so that the fibers are forced to be sucked and dispersed in the separator.

[0029] 2. Compared with the existing air flow separators and electrostatic separators, the tubular drawing side suction separator provided by the present invention uses forced suction, so the fibers are easier to disperse and "cloud spots" are reduced.

[0030] 3. Compared with the existing mechanical wire splitting, the tubular drawing side suction wire splitter provided by the present invention is less likely to produce fiber doubling due to the use of forced suction.

[0031] In summary, the technical solution of the present invention solves the problem that the existing wire separator in the prior art has poor dispersion effect of the wire bundle and cannot be completely dispersed into single wires, resulting in product quality problems such as wire doubling and "cloud spots" in the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0033] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0034] Figure 2 For the present invention Figure 1 AA view;

[0035] Figure 3 This is an axonometric view of Embodiment 1 of the present invention;

[0036] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0037] Figure 5 For the present invention Figure 4 BB view;

[0038] Figure 6 For the present invention Figure 4 Side view;

[0039] Figure 7 For the present invention Figure 6 CC view;

[0040] Figure 8 This is an axonometric view of Embodiment 2 of the present invention;

[0041] Fig. 9This is a schematic diagram of the structure of Embodiment 3 of the present invention;

[0042] Fig.10 For the present invention Fig. 9 DD view;

[0043] Fig.11 For the present invention Fig. 9 Side view;

[0044] Fig.12 For the present invention Fig.11 EE view;

[0045] Fig.13 This is an axonometric view of Embodiment 3 of the present invention;

[0046] Fig.14 This is a schematic diagram of the structure of Embodiment 4 of the present invention;

[0047] Fig.15 For the present invention Fig.14 FF view;

[0048] Fig.16 For the present invention Fig.14 Side view;

[0049] Fig.17 For the present invention Fig.16 GG view;

[0050] Fig.18 This is an axonometric view of embodiment 4 of the present invention.

[0051] In the figure:

[0052] 1. Wire separator 11, connection port 12, upper tube 13, diameter reducing flat mouth 14, wire outlet;

[0053] 2. Air suction interface;

[0054] 3. Fiber bundles. DETAILED DESCRIPTION

[0055] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0056] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0058] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0059] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0060] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0061] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0062] Example 1

[0063] like Figure 1-3 As shown, the present invention provides a side suction wire separator for tubular drawing, the upper part of the wire separator 1 is installed on the lower part of the drawing tube; the wire separator 1 is a tubular structure that passes through from top to bottom, the upper part of which is a connecting port 11 connected to the drawing tube, and the lower part is a wire outlet 14; a through hole for assembling an air suction interface 2 is provided on the tube wall of the wire separator 1; the air suction interface 2 is connected to an external negative pressure device, and air is sucked out from the inside of the wire separator 2 through the air suction interface 2; the fiber bundle 3 is ejected from the lower wire outlet 14 of the wire separator 1 to the swing wire device or directly laid on the wire laying machine.

[0064] The connecting port 11 at the upper part of the wire separator 1 and the wire outlet 14 at the lower part are both circular openings; the diameter of the wire outlet 14 is not less than the diameter of the connecting port 11 .

[0065] The number of the air suction interfaces 2 is an even number; four identical air suction interfaces 2 are symmetrically mounted on the same horizontal plane of the wire separator 1 .

[0066] The air suction interface 2 is mounted on the through holes on the tube wall of the wire separator 1 which are symmetrically distributed with the center of the wire separator 1 as the center of the circle.

[0067] Example 2

[0068] like Figure 4-8As shown, (based on Example 1), the present invention also provides a side suction wire separator for tubular drawing, the upper part of the wire separator 1 is installed on the lower part of the drawing tube; the wire separator 1 is a tubular structure that passes through from top to bottom, the upper part of which is a connecting port 11 connected to the drawing tube, and the lower part is a wire outlet 14; a through hole for assembling an air suction interface 2 is provided on the tube wall of the wire separator 1; the air suction interface 2 is connected to an external negative pressure device, and air is sucked out from the inside of the wire separator 2 through the air suction interface 2; the fiber bundle 3 is ejected from the lower wire outlet 14 of the wire separator 1 to the wire swing device or directly laid on the wire laying machine.

[0069] The wire separator 1 is integrally formed by an upper cylinder 12 and a reducing flat-mouth portion 13; the upper cylinder 12 is a cylindrical structure, the upper portion of which is a circular connection port 11, and the lower portion is a circular opening connected to the reducing flat-mouth portion 13; the diameter of the circular opening at the lower portion of the upper cylinder 12 is not less than the diameter of the circular opening of the upper connection port 11; the lower portion of the reducing flat-mouth portion 13 is an oblate wire outlet port 14, and the upper portion is a circular opening, which are assembled with the circular opening at the lower end of the upper cylinder 12 to form a complete wire separator 1.

[0070] The number of the air suction interfaces 2 is an even number; four identical air suction interfaces 2 are symmetrically mounted on the same horizontal plane of the wire separator 1 .

[0071] The air suction interface 2 is mounted on the through holes on the tube wall of the wire separator 1 which are symmetrically distributed with the center of the wire separator 1 as the center of the circle.

[0072] Example 3

[0073] like Figure 9-13 As shown, (based on Example 1), the present invention also provides a side suction wire separator for tubular drawing, the upper part of the wire separator 1 is installed on the lower part of the drawing tube; the wire separator 1 is a tubular structure that passes through from top to bottom, the upper part of which is a connecting port 11 connected to the drawing tube, and the lower part is a wire outlet 14; a through hole for assembling an air suction interface 2 is provided on the tube wall of the wire separator 1; the air suction interface 2 is connected to an external negative pressure device, and air is sucked out from the inside of the wire separator 2 through the air suction interface 2; the fiber bundle 3 is ejected from the lower wire outlet 14 of the wire separator 1 to the wire swing device or directly laid on the wire laying machine.

[0074] The upper connection port 11 of the wire separator 1 is a circular port, the lower wire outlet 14 is an oblate circular port, and the cylinder in the middle is a deformed cylinder structure.

[0075] The number of the air suction interfaces 2 is even; two identical air suction interfaces 2 are symmetrically arranged on the same horizontal plane of the wire separator 1.

[0076] The air suction interface 2 is mounted on the through holes on the tube wall of the wire separator 1 which are symmetrically distributed with the center of the wire separator 1 as the center of the circle.

[0077] Example 4

[0078] like Figure 14-18 As shown, (based on Example 1), the present invention also provides a side suction wire separator for tubular drawing, the upper part of the wire separator 1 is installed on the lower part of the drawing tube; the wire separator 1 is a tubular structure that passes through from top to bottom, the upper part of which is a connecting port 11 connected to the drawing tube, and the lower part is a wire outlet 14; a through hole for assembling an air suction interface 2 is provided on the tube wall of the wire separator 1; the air suction interface 2 is connected to an external negative pressure device, and air is sucked out from the inside of the wire separator 2 through the air suction interface 2; the fiber bundle 3 is ejected from the lower wire outlet 14 of the wire separator 1 to the wire swing device or directly laid on the wire laying machine.

[0079] The upper connecting port 11 of the reducer-diameter flat-mouth type wire separator is a circular port, the lower wire outlet 14 is an oblate circular port, and the cylinder in the middle is a deformed cylinder structure.

[0080] The number of the air suction interfaces 2 is an even number; four identical air suction interfaces 2 are symmetrically mounted on the same horizontal plane of the wire separator 1 .

[0081] The air suction interface 2 is mounted on the through holes on the tube wall of the wire separator 1 which are symmetrically distributed with the center of the wire separator 1 as the center of the circle.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A side suction wire separator for tubular drawing, wherein the upper part of the wire separator (1) is mounted on the lower part of the drawing tube, characterized in that: The wire separator (1) is a tubular structure that penetrates from top to bottom, the upper part of which is a connection port (11) connected to the drafting tube, and the lower part is a wire outlet (14); A through hole for assembling the air suction interface (2) is provided on the tube wall of the wire separator (1); The air suction interface (2) is connected to an external negative pressure device, and air is sucked outward from the inside of the wire separator (1) through the air suction interface (2); The fiber bundle (3) is ejected from the lower fiber outlet (14) of the fiber separator (1) and then goes to a fiber swing device or is directly laid on a fiber laying machine.

2. The tubular side suction wire separator for drawing according to claim 1, characterized in that: The wire separator (1) comprises: a cylindrical wire separator, a split wire separator and a variable diameter flat mouth wire separator.

3. The tubular side suction separator for drawing according to claim 2, characterized in that: The connection port (11) at the upper part and the wire outlet (14) at the lower part of the cylindrical wire separator are both circular openings; The diameter of the wire outlet (14) is not less than the diameter of the connection port (11).

4. The tubular side suction separator for drawing according to claim 2, characterized in that: The split type wire separator is integrally processed from an upper cylinder portion (12) and a diameter-changing flat mouth portion (13); The upper cylinder (12) is a cylindrical structure, the upper part of which is a circular connection port (11), and the lower part of which is a circular opening connected to the diameter-changing flat opening (13); The diameter of the circular opening at the lower portion of the upper cylinder (12) is not less than the diameter of the circular opening of the upper connecting port (11); The lower part of the variable diameter flat mouth part (13) is an oblate wire outlet (14), and the upper part is a circular mouth, which is assembled with the circular mouth at the lower end of the upper cylinder part (12) to form a complete wire separator (1).

5. The tubular side suction separator for drawing according to claim 2, characterized in that: The upper connection port (11) of the variable diameter flat-mouth type wire splitter is a circular port, the lower wire outlet (14) is an oblate circular port, and the cylinder in the middle is a deformed cylinder structure.

6. The tubular side suction separator for drawing according to claim 1, characterized in that: The air intake interfaces (2) are an even number; The wire separator (1) is symmetrically provided with at least two identical air suction interfaces (2) on the same horizontal plane.

7. The tubular side suction separator for drawing according to claim 6, characterized in that: The air suction interface (2) is mounted on a through hole on the tube wall of the wire separator (1) symmetrically distributed with the center of the wire separator (1) as the center of the circle.

8. The tubular side suction separator for drawing according to claim 1, characterized in that: The air suction interface (2) is installed on the through hole on the tube wall of the wire separator (1) in a relatively spaced manner.

9. The tubular side suction separator for drawing according to claim 1, characterized in that: The air suction interface (2) is installed in a spiral form on the through hole on the tube wall of the wire separator (1).

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