CN217920772U - Anti-wire-clamping unwinding device - Google Patents

Abstract

The utility model relates to an anti-sticking silk moves back around device. This kind of anti-sticking silk moves back wind, includes: an unwind spool for unwinding a wire on the unwind spool; and the blowing assembly is arranged at the downstream of the unwinding spool and used for blowing air to the unwinding spool from bottom to top by blowing air flow, and the blowing air flow is positioned in a clamping area formed by the outer surface of the unwinding spool adjacent to the unwound yarns and the unwound yarns. The yarn clamping prevention unwinding device can easily separate unwound yarns extending downwards from unwound yarn layers on an unwinding spool, and further enables the nested yarns to be separated out during unwinding, so that the yarn embedding effect is realized, and the yarn clamping problem during unwinding is prevented.

Description

Anti-wire-clamping unwinding device

Technical Field

The utility model relates to a spinning technical field especially relates to an anti-sticking silk moves back around device.

Background

Taking a hollow fiber membrane as an example, in the spinning and winding process, in order to make the hollow fiber membrane uniformly arranged and improve the winding amount of a single bobbin, the hollow fiber membrane is generally uniformly and layer-wise wound in the bobbin, but because of the nonuniformity of the gaps of the hollow fiber membrane and the sliding of the hollow fiber membrane, the hollow fiber membrane at the upper layer can be randomly embedded into the gaps of the hollow fiber membrane at the lower layer, so that the problem of yarn clamping is caused. And the clearance of card silk department is less than the diameter of hollow fiber membrane, and the hollow fiber membrane of being embedded can receive the extrusion, at the in-process of backing-off, the hollow fiber membrane of being embedded needs certain tension can break away from card silk department, and when tension was too big, the hollow fiber membrane of being embedded also can make hollow fiber membrane tensile deformation because of tension when breaking away from, destroys the pore structure of hollow fiber membrane self, reduces the membrane performance.

Therefore, in a process requiring unwinding of the hollow fiber membrane such as knitting or packaging, since the action of releasing the yarn is required to smoothly unwind the hollow fiber membrane from the bobbin, the development of a yarn jamming prevention unwinding device having the action of releasing the yarn has a very great practical significance in unwinding the hollow fiber membrane from the bobbin.

SUMMERY OF THE UTILITY MODEL

Accordingly, it is necessary to provide a yarn jam prevention device which can be applied to a hollow fiber membrane and which can prevent the hollow fiber membrane from being damaged and deformed.

The utility model discloses a realize through following technical scheme.

The utility model discloses an aspect provides an anti-sticking silk moves back wind device, include:

an unwind spool for unwinding a wire on the unwind spool; and

and the blowing assembly is arranged at the downstream of the unwinding spool and used for blowing air to the unwinding spool from bottom to top by blowing air flow, and the blowing air flow is positioned in a clamping area formed by the outer surface of the unwinding spool adjacent to the unwound yarns and the unwound yarns.

In some of these embodiments, the linear velocity direction of the highest point of the unwinding spool is taken as a reference direction, the included angle between the unwound wire and the reference direction is an unwinding angle, and the unwinding angle is between 0 ° and 150 °;

and/or the included angle between the unwound yarn and the blowing air flow is a blowing angle which is between 0 and 90 degrees.

In some of these embodiments, the unwound wire is located in the direction of the linear velocity of the unwinding point of the unwound wire.

In some embodiments, the blowing assembly is provided with a plurality of blowing holes, and the vertical distance between the tops of the blowing holes and the lower surface of the unwinding spool is 5-20 cm.

In some embodiments, the plurality of air blowing holes are arranged in a row or an array, and the distance between every two adjacent air blowing holes is 1 cm-2 cm; the aperture of the air blowing hole is 1 mm-10 mm;

and/or, the air blowing assembly is an air knife assembly.

In some embodiments, the blowing assembly is located below the unwinding spool, and a plurality of blowing hole coverage areas of the blowing assembly form a blowing area, wherein the lateral span of the blowing area is larger than or equal to the lateral span of the winding area of the unwinding spool, so that the blowing air flow of the blowing area can act on the whole winding area.

In some embodiments, the anti-jamming unwinding device further comprises a suction gun assembly arranged at the downstream of the air blowing assembly, the suction gun assembly comprises a yarn suction pipeline and an air supply pipeline, the yarn suction pipeline is located in the extension direction of the unwound yarns and used for introducing the unwound yarns after air blowing from the air blowing assembly, and the air supply pipeline is communicated with the yarn suction pipeline and used for providing unwinding airflow for the unwound yarns.

In some embodiments, the inner diameter of the silk inlet of the silk suction pipeline is 1 mm-3 mm, the inner diameter of the silk outlet of the silk suction pipeline is 2 mm-5 mm, and/or the inner diameter of the air supply pipeline is 1 mm-3 mm;

and/or the length from the silk inlet of the silk suction pipeline to the silk outlet of the silk suction pipeline is 5 cm-10 cm;

and/or the included angle formed by the connection part of the silk inlet end of the silk suction pipeline and the air supply pipeline is 25-50 degrees.

In some embodiments, the suction gun assembly is arranged below the unwinding spool, and the vertical distance between the wire inlet of the wire suction pipeline and the lower surface of the unwinding spool is 30-120 cm;

or the suction gun assembly is arranged below the blowing assembly, and the vertical distance between the wire inlet of the wire suction pipeline and the lower surface of the blowing assembly is 30-80 cm.

In some embodiments, the suction gun assembly further comprises an inner sleeve, wherein the inner sleeve is arranged on the inner wall of the suction gun assembly;

wherein the inner sleeve is a ceramic inner sleeve or a polytetrafluoroethylene inner sleeve; and/or the presence of a gas in the gas,

the friction coefficient of the inner sleeve is 0.01-0.3.

According to the yarn jamming prevention unwinding device, the blowing assembly is arranged at the downstream of the unwinding spool, the blowing assembly is controlled to blow towards the unwinding spool by blowing air flow in the clamping area formed by the outer surface of the unwinding spool adjacent to unwound yarns and unwound yarns, the unwinding point of the yarns is separated from the unwound yarn layer on the unwinding spool under the action of blowing air pressure, and the blowing assembly blows air to the yarn unwinding corner from bottom to top, so that the unwound yarns extending downwards can be easily separated from the unwound yarn layer on the unwinding spool, nested yarns can be separated during unwinding, the yarn jamming effect is known, and the problem of unwinding yarn jamming is prevented.

This anti-sticking silk unwinding device is particularly useful for the unwinding process of hollow fiber membrane, not only can effectively realize unwinding in-process anti-sticking silk effect, easily follow-up work of weaving, adopts the mode of blowing and the contact of hollow fiber membrane simultaneously, can stop the risk that hollow fiber membrane surface is by the fish tail, has also avoided exerting tension and has forced to withdraw from the hollow fiber membrane that leads to hollow fiber membrane micropore to warp and make its loss of performance, and the tensile and cracked problem that appears unrecoverable with the hollow fiber membrane of embedding.

Drawings

Fig. 1 is a schematic structural view of an anti-jamming unwinding device according to an embodiment of the present invention.

Fig. 2 is a right-side schematic view of an example of the wire jam prevention unwinding device shown in fig. 1.

Fig. 3 is a right-side schematic view of still another example of the wire jam prevention unwinding device shown in fig. 1.

Fig. 4 is a right-side schematic view of another example of the wire jam prevention unwinding device shown in fig. 1.

Description of reference numerals:

100. the wire clamping prevention unwinding device; 110. an unwinding spool; 120. a blowing assembly; 121. a gas blowing hole; 101. a blowing gas stream; 102. a reference direction; 103. unwinding the airflow; 130. a suction gun assembly; 131. a silk suction pipeline; 132. a gas supply duct; 210. the wire has been unwound; 220: the outer surface of the unwind spool adjacent to the unwound wire.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. In order to make the purpose, technical solution and advantages of the present invention more concise and clear, preferred embodiments of the present invention are given in the accompanying drawings. The embodiments described below are only preferred embodiments of the present invention and can be used to describe the present invention, which should not be interpreted as limiting the scope of the present invention, which can be implemented in many different forms. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete. It should be understood that any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, 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 belongs. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

At present, the warp knitting machine is mostly used for knitting textile yarns, the problem of yarn embedding and yarn clamping is not easy to occur in the unwinding process due to the oblique-angle winding mode of the yarns, and meanwhile, the influence on the yarns is small during unwinding and stretching, so that the yarn unwinding process can be smoothly completed by applying certain tension. However, when the hollow fiber membrane is woven, the problem of thread embedding and thread clamping is easily caused when the hollow fiber membrane is wound on a bobbin, and simultaneously, tension is applied to forcibly withdraw the embedded hollow fiber membrane, so that the micropores of the hollow fiber membrane are deformed, and the performance of the hollow fiber membrane is lost. Therefore, it is required to develop an anti-seize yarn unwinding device particularly suitable for unwinding a hollow fiber membrane.

Referring to fig. 1, one embodiment of the present invention provides a wire jamming prevention unwinding device 100, which includes an unwinding spool 110 and a blowing assembly 120.

Wherein the unwind spool 110 is used to unwind the wire on the unwind spool 110. It will be appreciated that in fig. 1, the unwind spool 110 rotates about a central spindle, completing the unwinding of the wire.

The wire can be unwound clockwise or counterclockwise about the central axis of rotation, as viewed from right to left in fig. 1. The following description will be given taking the counterclockwise direction as an example.

Referring to fig. 1, the unwound filament 210 unwound from the unwinding spool 110 and the outer surface 220 of the unwinding spool 110 adjacent to the unwound filament 210 form a nip region as required by the subsequent knitting process.

As shown in fig. 2 to 4, the air blowing assembly 120 is provided downstream of the unwinding spool 110, and the air blowing assembly 120 serves to blow air toward the unwinding spool 110 from the bottom up in the nip area. Namely: the blowing air stream 101 of the blowing assembly 120 is located within the sandwiched region of the unwound filament 210 and the outer surface 220 of the unwind spool 110 adjacent to the unwound filament 210.

It is to be noted that "downstream" refers to a position opposite to the next process in the moving direction of the material. In this particular example, the wire wound on the unwind spool 110 is unwound from the unwind spool 110 and then blown through the blowing assembly 120. The blowing process of the blowing assembly 120 is located at the next process with respect to the unwinding process of the unwinding spool 110, i.e., the blowing assembly 120 is disposed downstream of the unwinding spool 110. The following is similar.

In the yarn jamming prevention unwinding device 100, the blowing assembly 120 is disposed downstream of the unwinding spool 110, and the blowing assembly 120 is controlled to blow air toward the unwinding spool 110 by the blowing air flow in the clamping area formed by the outer surface 220 of the unwinding spool 110 adjacent to the unwound yarn 210 and the unwound yarn 210, so that the unwinding point of the yarn is separated from the un-unwound yarn layer on the unwinding spool 110 by the blowing air pressure, and the blowing assembly 120 blows air from the bottom to the top at the yarn unwinding nip, so that the unwound yarn 210 extending downward can be easily separated from the un-unwound yarn layer on the unwinding spool 110, and the nested yarn can be separated while being unwound, thereby achieving the yarn jamming prevention effect.

This anti-sticking silk moves back and winds device 100 is particularly useful for the backing-off process of hollow fiber membrane, not only can effectively realize backing-off in-process anti-sticking silk effect, easily follow-up weaving work, adopts the mode of blowing and hollow fiber membrane contact simultaneously, can stop the risk that hollow fiber membrane surface is by the fish tail, has also avoided exerting tension and has forced to withdraw from the hollow fiber membrane that leads to hollow fiber membrane micropore to warp and make its loss of performance, and the tensile and cracked problem that appears unrecoverable.

It is understood that the anti-yarn-jamming unwinding device 100 is particularly suitable for unwinding process of hollow fiber membrane and the like sensitive to drawing tension, but is not limited thereto, and may also be suitable for unwinding process of textile yarn.

In some of these embodiments, the blow assembly 120 is disposed below the unwind spool 110 such that the blow assembly 120 blows from the bottom up. In this manner, the unwound filaments 210 on the unwind spool 110 extend downwardly adjacent to the blowing assembly 120, and blowing air from the bottom to top through the blowing assembly 120 at the corners of the unwinding spool can very easily cause the downwardly extending unwound filaments 210 to separate from the layer of unspooled filaments on the unwind spool 110.

Taking fig. 2 as an example, the unwind spool 110 rotates at an angular velocity ω. The linear velocity direction of the highest point a of the unwinding spool 110 is taken as the reference direction 102, the included angle between the already unwound wire 210 and the reference direction 102 is the unwinding angle α, and the unwinding angle α is between 0 ° and 150 °. It can be appreciated that the reference direction 102 is in a horizontal direction.

As shown in fig. 2, when the unwinding angle α is 90 °, the unwound wire 210 sags in the direction of gravity.

As shown in fig. 3, the unwind angle α < 90 °, which may be, for example, 30 °, 60 °, 70 °, with the unwound filaments 210 disposed obliquely downward to the left from the unwind spool 110.

As shown in fig. 4, when the unwinding angle α > 90 °, for example, may be 120 °, 130 °, 150 °, the already unwound filaments 210 are disposed obliquely downward to the right from the unwinding spool 110.

Preferably, the unwinding angle α is 30 ° to 90 °.

Further, in the specific example as in fig. 2 to 4, the already unwound wire 210 is located in the linear speed direction of the unwinding point B of the already unwound wire 210; in other words, unwound wire 210 is located in a tangential direction to unwinding point B of unwound wire 210.

Further, referring to fig. 2 to 4, an included angle between the unwound yarn 210 and the blowing air flow 101 of the blowing assembly 120 is a blowing angle β, and the blowing angle β is between 0 ° and 90 °, preferably between 5 ° and 90 °; further, the blow angle β is 30 °.

Those skilled in the art will appreciate that the blow assembly 120 is not necessarily located directly below the unwind spool 110 and is preferably not in the direction of extension of the unwound wire 210. The position of the blowing assembly 120 is set so that the blowing air flow 101 meets the requirement of the blowing angle β.

As shown in fig. 2-4, the blow assembly 120 is disposed downstream of the unwind spool 110.

Those skilled in the art can understand that the drawing of fig. 1 from right to left is similar to that of fig. 2 to 4, and the drawing is not repeated herein, as seen from left to right in fig. 1 and as seen from left in fig. 1.

In some embodiments, as shown in fig. 1, the blowing holes 121 of the blowing assembly 120 are disposed toward the unwinding spool 110, and a vertical distance L1 between the top of the blowing holes 121 and the lower surface of the unwinding spool 110 is 5cm to 20cm.

In some of these embodiments, the blow assembly 120 is an air knife assembly. Further, the blowing assembly 120 is a bar-shaped air knife.

In some embodiments, the air blowing assembly 120 has a plurality of air blowing holes 121, and the plurality of air blowing holes 121 are arranged in a row or an array. It is worth noting that the array is distributed in a plurality of rows and columns.

Further, the shape of the blowing hole 121 may be a circular hole, an elliptical hole, a square hole, a long-strip-shaped hole, and is not limited thereto.

Further, the distance between two adjacent air blowing holes 121 is 1 cm-2 cm.

Further, the aperture of the air blowing hole 121 is 1mm to 10mm. Further, when the air blowing hole 121 is a circular hole, an elliptical hole, a square hole, or a strip hole, the longest aperture of the opposite sides is 1mm to 10mm, and the shortest aperture of the opposite sides is 1mm to 5mm.

In some of these embodiments, as shown in fig. 1, the blow assembly 120 is located below the unwind spool 110, and the lateral span L3 of the blow zone of the blow assembly 120 is greater than or equal to the lateral span L2 of the winding zone of the unwind spool 110 to enable the flow of blow air from the blow zone to be applied to the entire winding zone. This ensures that the blowing assembly 120 can blow well on the wire at various locations on the unwind spool 110. It is understood that the transverse span herein refers to the dimension in the axial direction of the unwind spool 110.

Further, the blowing assembly 120 has a length 1.0 to 1.3 times the length of the unwinding spool 110.

The blowing area of the blowing assembly 120 refers to an area of the blowing assembly 120 where the blowing holes 121 are distributed, that is, the area covered by the plurality of blowing holes 121 of the blowing assembly 120 constitutes the blowing area. The winding area of the unwind spool 110 refers to the area of the unwind spool 110 around which the filament is wound.

Further, the air blowing unit 120 is supplied with an air pressure of 0.5 to 5MPa.

Further, the blowing flow rate of the blowing air of the blowing assembly 120 is 0.1 to 0.4m ³ /min。

In some of these embodiments, the anti-snag unwinding device 100 further comprises a suction gun assembly 130. The pipette assembly 130 includes a pipette line 131 and a gas supply line 132. The yarn suction duct 131 is located in the extending direction of the unwound yarn 210 for passing the unwound yarn 210 after being blown from the blowing assembly 120. The air supply duct 132 communicates with the yarn suction duct for supplying the unwinding air flow 103 to the unwound yarn 210. The gun assembly 130 is disposed downstream of the blowing assembly 120, and discharges the unwound yarn 210 blown from the blowing assembly 120 into the yarn suction duct of the gun assembly 130 and provides an unwinding air flow 103 to the unwound yarn 210 in the yarn suction duct, the unwinding air flow 103 providing a downward force to the unwound yarn 210 to promote smooth unwinding of the unwound yarn 210 by the unwinding air flow 103. Thus, the dual functions of the blowing action of the blowing assembly 120 and the unwinding air flow 103 of the suction gun assembly 130 are adopted, so that the embedded hollow fiber membrane can be gradually unwound and unwound under the micro-tension, the deformation of the hollow fiber membrane is small, and the subsequent weaving and other work is easy. In addition, the hollow fiber membrane is separated from the clamping wires through the action of gas in the whole unwinding process, no other contact is caused between the whole process and the surface of the hollow fiber membrane, and the risks that the surface of the hollow fiber membrane is scratched and the like are avoided.

It is understood that in other embodiments, other drive assemblies may be used to provide unwinding power to the unwound filament 210 after blowing air from the blowing assembly 120.

In some embodiments, the yarn suction pipe 131 and the air supply pipe 132 both extend from top to bottom, and the yarn feeding end of the yarn suction pipe 131 (the yarn feeding end is the end of the yarn suction pipe 131 close to the yarn feeding port) and the air supply pipe 132 both form an acute angle at the connection, preferably an angle of 25 ° to 50 °. The gun assembly 130 thus formed is of the "Y" type, with unwound yarn 210 blown from the blowing assembly 120 into the yarn suction duct 131, while the unwinding air stream 103 into the air supply duct 132, the unwound yarn 210 interacting with the unwinding air stream 103, which provides unwinding power to the unwound yarn 210. Unwound yarn 210 then exits from the yarn outlet of yarn suction conduit 131 and may be subjected to subsequent processing steps, such as weaving, winding, and the like.

Further, the pressure of the unwinding gas flow 103 supplied is 0.5 to 2MPa.

Further, the purge flow rate of the backing-off gas flow 103 is 0.05 to 0.2m ³ And/min. In other words, the purge flow rate in the gas supply line 132 is 0.05 to 0.2m ³ /min。

Further, the inner diameter of the filament inlet of the filament suction pipeline 131 is 1 mm-3 mm. The inner diameter of the fiber suction pipe 131 is preferably in this range in consideration of the diameter of the hollow fiber membrane to avoid the risk of scratching the surface of the hollow fiber membrane due to contact between the fiber feed pipe 131 and the hollow fiber membrane.

Further, the inner diameter of the gas supply pipe 132 is the same as the inner diameter of the silk suction pipe 131. For example, the inner diameter of the gas supply duct 132 is 1mm to 3mm. In one embodiment, the inner diameter of the filament outlet of the filament sucking pipe 131 is optionally 2mm to 5mm.

Further, the length of the yarn suction duct 131 (specifically, the yarn inlet to the yarn outlet of the yarn suction duct 131) is 5cm to 10cm.

In some embodiments, the suction gun assembly 130 is disposed below the unwinding spool 110, and the vertical distance L4 between the filament inlet of the filament suction pipe 131 and the lower surface of the unwinding spool 110 is 30cm to 120cm.

In some embodiments, the suction gun assembly 130 is disposed below the air blowing assembly 120, and the vertical distance L5 between the wire inlet of the wire suction pipe 131 and the lower surface of the air blowing assembly 120 is 30 cm-80 cm.

It is understood that the blow assembly 120 and the suction gun assembly 130 are disposed downstream of the unwind spool 110 in sequence. In one specific example, the blow assembly 120 and the suction gun assembly 130 are sequentially disposed below the unwind spool 110. In other words, the unwound filament 210 from the unwind spool 110 passes through the blow assembly 120 and the suction gun assembly 130 in sequence from top to bottom.

Further, the gas sources employed by the blowing assembly 120 and the suction gun assembly 130 may each be independently selected from compressed air, nitrogen, or an inert gas.

Further, the material of the suction gun assembly is not limited, and can be metal, ceramic or polytetrafluoroethylene.

In some embodiments, the suction gun assembly 130 further comprises an inner sleeve disposed on an inner wall of the suction gun assembly 130. Specifically, the inner sleeve is disposed on the inner wall of the silk suction pipe 131 and/or the air supply pipe 132.

Preferably, when the material of suction gun subassembly is metal, set up above-mentioned endotheca. Furthermore, the inner sleeve is a ceramic inner sleeve or a polytetrafluoroethylene inner sleeve. The inner sleeves made of the materials have small contact damage to the hollow fiber membranes, and can effectively reduce the damage to the hollow fiber membranes when the inner walls of the suction gun assembly 130 are in contact with the hollow fiber membranes.

Further, the friction coefficient of the inner sleeve is 0.01-0.3. By controlling the friction coefficient of the inner sleeve within the smaller range, damage to the hollow fiber membrane can be effectively reduced when the inner wall of the suction gun assembly 130 is in contact with the hollow fiber membrane.

The utility model discloses another embodiment still provides an anti-sticking silk backing-off method, and it can adopt any one of the above-mentioned anti-sticking silk to move back around the device and go on.

The anti-wire-jamming unwinding method comprises the following steps of S10: the filaments are unwound from the unwinding spool, and during the unwinding, the unwinding spool is blown with the above-mentioned blowing air flow from bottom to top.

It is understood that other details of the anti-jamming unwinding method have been described in detail in the above section and will not be described herein. Further, in step S10, the unwinding direction or the moving direction of the unwound wire is opposite or substantially opposite to the blowing direction. By "opposite or substantially opposite" is meant that the unwound wire is moved downwards while blowing air towards the upper or obliquely upper direction.

In some of these embodiments, the step of blowing is carried out at a feed pressure of 0.5 to 5MPa.

In some of these embodiments, the step of blowing has a purge flow rate of 0.1 to 0.4m ³ /min。

In some embodiments, the method further includes the following step S20: after the step of blowing air, an unwinding air stream is provided to the unwound filaments 210.

Further, in step S20, the unwinding direction or the moving direction of the unwound yarn is the same as or substantially the same as the blowing direction of the unwinding air stream. By "the same or substantially the same" is meant that the unwound yarn is moved downwards and the unwinding air stream is blown downwards or obliquely downwards.

Further, the pressure of the unwinding gas stream supplied is 0.5 to 2MPa.

Further, the blowing flow speed of the backing-off airflow is 0.05-0.2 m ³ /min。

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims, and the description and drawings can be used to interpret the contents of the claims.

Claims (10)

1. An anti-jamming wire unwinding device, comprising:

an unwind spool for unwinding a wire on the unwind spool; and

and the blowing assembly is arranged at the downstream of the unwinding spool and used for blowing air to the unwinding spool from bottom to top by blowing air flow, and the blowing air flow is positioned in a clamping area formed by the outer surface of the unwinding spool adjacent to the unwound yarns and the unwound yarns.

2. The anti-jamming filament unwinding device according to claim 1, wherein the unwinding angle is an angle between 0 ° and 150 ° with the reference direction being the linear velocity direction of the highest point of the unwinding spool;

and/or an included angle between the unwound silk thread and the blowing air flow is a blowing angle which is between 0 and 90 degrees.

3. The filament jam prevention unwinding device of claim 1 wherein the unwound filament is located in the direction of the linear velocity of the unwinding point of the unwound filament.

4. The wire jam prevention unwinding device of claim 1 wherein the blowing assembly has a plurality of blowing holes, and the vertical distance between the top of the blowing holes and the lower surface of the unwinding spool is 5cm to 20cm.

5. The anti-jamming wire unwinding device according to claim 4, wherein the plurality of air blowing holes are arranged in a row or an array, and the distance between two adjacent air blowing holes is 1cm to 2cm; the aperture of the air blowing hole is 1 mm-10 mm;

and/or, the air blowing assembly is an air knife assembly.

6. The filament jam prevention unwinding device of claim 1 wherein the blowing assembly is located below the unwinding spool and the plurality of blowing hole coverage areas of the blowing assembly form a blowing zone having a lateral span greater than or equal to the lateral span of the winding zone of the unwinding spool such that the blowing air flow of the blowing zone is applied to the entire winding zone.

7. The wire jamming prevention unwinding device according to any one of claims 1 to 6, further comprising a suction gun assembly disposed downstream of the air blowing assembly, the suction gun assembly including a wire suction duct located in an extending direction of the unwound wire for passing the unwound wire after being blown from the air blowing assembly, and an air supply duct communicating with the wire suction duct for providing an unwinding air flow to the unwound wire.

8. The anti-jamming yarn unwinding device according to claim 7, wherein the inner diameter of the yarn inlet of the yarn suction pipeline is 1mm to 3mm, the inner diameter of the yarn outlet of the yarn suction pipeline is 2mm to 5mm, and/or the inner diameter of the air supply pipeline is 1mm to 3mm;

and/or the length from the silk inlet of the silk suction pipeline to the silk outlet of the silk suction pipeline is 5 cm-10 cm;

and/or the included angle formed by the connection part of the silk inlet end of the silk suction pipeline and the air supply pipeline is 25-50 degrees.

9. The wire jamming prevention unwinding device of claim 7, wherein the suction gun assembly is disposed below the unwinding spool, and a vertical distance between a wire inlet of the wire suction duct and a lower surface of the unwinding spool is 30cm to 120cm;

or the suction gun assembly is arranged below the blowing assembly, and the vertical distance between the wire inlet of the wire suction pipeline and the lower surface of the blowing assembly is 30-80 cm.

10. The filament jam prevention unwinding device of claim 7 wherein the suction gun assembly further comprises an inner sleeve, the inner sleeve being disposed on an inner wall of the suction gun assembly;

wherein the inner sleeve is a ceramic inner sleeve or a polytetrafluoroethylene inner sleeve; and/or the presence of a gas in the gas,

the friction coefficient of the inner sleeve is 0.01-0.3.

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