阅读说明：本技术 一种环形中空编织绳索扁带 (Annular hollow braided rope flat belt ) 是由 李甜 邱延平 沈明 宋炳涛 巩亮 方文青 石士超 张樱花 宋其晶 于 2019-11-21 设计创作，主要内容包括：本申请实施例公开了一种环形中空编织绳索扁带,该扁带由中空编织绳索扁带通过多次交叉曲折缝制得到,该中空编织绳索扁带由中空编织绳索经由至少两组差速挤压对辊依次旋转挤压得到,中空编织绳索由多根纤维绳股编织而成,其中,编织中空编织绳索的Z捻向纤维绳股和S捻向纤维绳股的数量相等,编织循环花结长度为中空编织绳索的直径的4～5倍；多次交叉曲折缝制至少为三次,每次缝制路径呈锯齿状,在后缝制线与在先缝制线相互交叉,且在后缝制线完全覆盖在先缝制线。(The embodiment of the application discloses an annular hollow braided rope bandlet, which is obtained by sewing the hollow braided rope bandlet in a crossed and zigzag mode for multiple times, the hollow braided rope bandlet is obtained by sequentially rotating and extruding a hollow braided rope through at least two groups of differential extrusion double rollers, the hollow braided rope is formed by braiding a plurality of fiber rope strands, the number of Z-lay-direction fiber rope strands and S-lay-direction fiber rope strands for braiding the hollow braided rope is equal, and the length of a braiding circulating knot is 4-5 times of the diameter of the hollow braided rope; the multiple crossed and zigzag sewing is at least three times, the sewing path is zigzag each time, the back sewing thread and the front sewing thread are crossed, and the back sewing thread completely covers the front sewing thread.)

1. The utility model provides a rope bandlet is woven to annular cavity, its characterized in that, the bandlet is woven the rope bandlet by the cavity and is sewed up through the tortuous of crossing many times and obtain, the rope bandlet is woven by the cavity and is woven the rope through at least two sets of differential extrusion pair rollers rotatory extrusion in proper order and obtain, the rope is woven by many fibre strands to the cavity and is woven and form, wherein:

the number of the Z-twist fiber rope strands and the number of the S-twist fiber rope strands for weaving the hollow weaving rope are equal, and the length of the weaving circulating knots is 4-5 times of the diameter of the hollow weaving rope;

the multiple times of crossed and zigzag sewing is at least three times, the sewing path is zigzag each time, the back sewing thread and the front sewing thread are crossed, and the back sewing thread completely covers the front sewing thread.

2. The annular hollow braided rope bandlet of claim 1 wherein said hollow braided rope is braided from 8Z-lay fiber strands and 8S-lay fiber strands.

3. The hollow braided rope ribbon according to claim 1, wherein the number of twists of said Z-twist fiber strands is 100 to 180 twists/m, and the number of twists of said S-twist fiber strands is set to 100 to 180 twists/m.

4. The hollow woven rope flat belt according to claim 1, wherein a sewing thread used for the multiple zigzag sewing is the same as a material used for weaving the hollow woven rope, and a sewing length is set to 5 to 10 cm.

5. The endless hollow braided rope flat belt of claim 1, wherein said differential pressure pinch roller pair comprises a first set of counter rollers and a second set of counter rollers having different rotational speeds, said first set of counter rollers having a rotational speed greater than said second set of counter rollers.

6. The endless hollow braided rope flat belt of claim 5, wherein the ratio of the rotational speeds of said first pair of rollers and said second pair of rollers is set to 1.03-1.08: 1.

7. The endless hollow braided rope flat belt of claim 5, wherein said first set of counter-rollers and said second set of counter-rollers are disposed in a common vertical plane and the axes of rotation of both said first set of counter-rollers and said second set of counter-rollers are perpendicular to said common vertical plane.

8. The endless hollow braided rope flat belt of claim 5, wherein said first set of counter-rollers and said second set of counter-rollers are staggered.

9. The annular hollow braided rope bandlet of claim 1, wherein said fiber strands braid the hollow braided rope under applied pressure.

10. The annular hollow braided rope flat belt of claim 1, wherein said fiber strands comprise natural fiber strands, chemical fiber strands, or hybrid fiber strands.

Technical Field

The application belongs to the technical field of rope weaving, and particularly relates to an annular hollow woven rope flat belt.

Background

In the fields of valley detection, hole exploration, rock climbing, ice climbing, high-rise escape and the like, the function of the auxiliary rope is as important as that of the main bearing rope, and when a person is out of hand and is separated from the main bearing rope, the auxiliary rope can timely pull the person to avoid tragedies. At present, the auxiliary rope mainly takes a round knitting rope made of nylon as a main material, the manufacturing requirement of the auxiliary rope of the structure type is high, and a gap is required to be completely reserved between ropes when the auxiliary rope is folded. Because the existing circular knitting auxiliary rope is mostly in a sheath-core structure, the requirement that no gap exists can not be met due to the existence of the rope core when the rope is folded, and potential safety hazards are left for the protection effect of the auxiliary rope.

Disclosure of Invention

In order to solve at least one of the above-mentioned technical problems of the prior art, an embodiment of the present application discloses an annular hollow braided rope flat belt, which is obtained by multiple zigzag sewing of a hollow braided rope flat belt, and which is obtained by sequentially rotating and extruding a hollow braided rope through at least two sets of differential extrusion pair rollers, wherein:

the number of the Z-twist fiber rope strands and the number of the S-twist fiber rope strands of the braided hollow braided rope are equal, and the length of the braided circulating knots is 4-5 times of the diameter of the braided hollow braided rope;

the multiple crossed and zigzag sewing is at least three times, the sewing path is zigzag each time, the back sewing thread and the front sewing thread are crossed, and the back sewing thread completely covers the front sewing thread.

Some embodiments disclose an annular hollow braided rope flat belt, the hollow braided rope being braided from 8Z-lay fiber strands and 8S-lay fiber strands.

Some embodiments disclose an annular hollow braided rope flat belt, wherein the twist of the fiber strand in the Z twist direction is 100-180 twist/m, and the twist of the fiber strand in the S twist direction is set to be 100-180 twist/m.

In the annular hollow braided rope flat belt disclosed in some embodiments, the sewing thread adopted by multiple times of cross zigzag sewing is the same as the material for weaving the hollow braided rope, and the sewing length is set to be 5-10 cm.

Some embodiments disclose an endless hollow braided rope flat belt, the differential extrusion pair of rollers comprising a first set of rollers and a second set of rollers having different rotational speeds, the first set of rollers having a rotational speed greater than the rotational speed of the second set of rollers.

Some embodiments disclose an annular hollow braided rope flat belt, wherein the ratio of the rotational speeds of the first pair of rollers and the second pair of rollers is set to be 1.03-1.08: 1.

Some embodiments disclose an endless hollow braided rope flat belt, the first and second set of counter-rollers being disposed in a common vertical plane, and the axes of rotation of the first and second set of counter-rollers being perpendicular to the common vertical plane.

Some embodiments disclose an endless hollow braided rope flat belt, the first pair of rollers and the second pair of rollers being staggered.

Some embodiments disclose an endless hollow braided rope flat belt in which fiber strands are braided under applied pressure to form a hollow braided rope.

Some embodiments disclose an endless hollow braided rope flat belt, the fiber strands comprising natural fiber strands, chemical fiber strands, or mixed fiber strands.

The rope bandlet is woven to annular cavity disclosed in the embodiment of the application can be used as climbing, supplementary rope when descending, has sufficient brute force and good elasticity, has the shape that is bandlet appearance simultaneously, and when using one end is tied to main load rope through the pile formula knot on, one end is passed through D type hook and is hung on the people body. The impact force of falling of personnel can be effectively absorbed, and simultaneously, due to the effect of the pilu knot, the pilu knot can firmly grasp the main rope to prevent the personnel from falling, so that the safety protection effect is realized.

The annular hollow braided rope flat belt disclosed by the embodiment of the application can be used in a plurality of fields such as the field of sports climbing and the field of high-altitude operation.

Drawings

FIG. 1 embodiment 1 is a schematic view of a side view of a sewn part of a flat band of a circular hollow braided rope

FIG. 2 is a schematic view of the top view of the sewing part of the flat band of the hollow circular braided rope in the embodiment 1

FIG. 3 schematic diagram of the position of the differential extrusion pair rollers for making hollow braided rope flat belts in example 1

Detailed Description

The word "embodiment" as used herein, is not necessarily to be construed as preferred or advantageous over other embodiments, including any embodiment illustrated as "exemplary". Performance index tests in the examples of this application, unless otherwise indicated, were performed using routine experimentation in the art. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; other test methods and techniques not specifically mentioned in the present application are those commonly employed by those of ordinary skill in the art.

The terms "substantially" and "about" are used throughout this disclosure to describe small fluctuations. For example, they may mean less than or equal to ± 5%, such as less than or equal to ± 2%, such as less than or equal to ± 1%, such as less than or equal to ± 0.5%, such as less than or equal to ± 0.2%, such as less than or equal to ± 0.1%, such as less than or equal to ± 0.05%. Concentrations, amounts, and other numerical data may be expressed or presented herein in a range format. Such range format is used merely for convenience and brevity and thus should be interpreted flexibly to include not only the numerical values explicitly recited as the limits of the range, but also to include all the individual numerical values or sub-ranges encompassed within that range as if each numerical value and sub-range is explicitly recited. For example, a numerical range of "1 to 5%" should be interpreted to include not only the explicitly recited values of 1% to 5%, but also include individual values and sub-ranges within the indicated range. Thus, included in this numerical range are individual values, such as 2%, 3.5%, and 4%, and sub-ranges, such as 1% to 3%, 2% to 4%, and 3% to 5%, etc. This principle applies equally to ranges reciting only one numerical value. Moreover, such an interpretation applies regardless of the breadth of the range or the characteristics being described.

In this disclosure, including the claims, all conjunctions such as "comprising," including, "" carrying, "" having, "" containing, "" involving, "" containing, "and the like are to be understood as being open-ended, i.e., to mean" including but not limited to. Only the conjunctions "consisting of … …" and "consisting of … …" are closed conjunctions.

In the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present application may be practiced without some of these specific details. In the examples, some methods, means, instruments, apparatuses, etc. known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application. On the premise of no conflict, the technical features disclosed in the embodiments of the present application may be combined arbitrarily, and the obtained technical solution belongs to the content disclosed in the embodiments of the present application. The first and second mentioned in this application are only intended to express different parts or components; the Z twist and S twist are merely intended to describe two opposite twisting directions. In the present application, the post-sewing thread is mentioned to completely cover the pre-sewing thread, and generally means that the width of the post-sewing thread, i.e., the height of the saw-teeth, and the length of the sewing portion are larger than those of the pre-sewing thread.

In some embodiments, the annular hollow braided rope flat belt is obtained by multiple times of cross-zigzag sewing of the hollow braided rope flat belt, the multiple times of cross-zigzag sewing are at least three times, a back sewing thread and a front sewing thread are crossed with each other, the back sewing thread completely covers the front sewing thread, each sewing path is in a zigzag shape, the hollow braided rope flat belt is obtained by sequentially rotating and extruding a hollow braided rope through at least two groups of differential extrusion double rollers, the hollow braided rope is braided by a plurality of fiber strands, the plurality of fiber strands are divided into Z-twist fiber strands and S-twist fiber strands, the number of the two-twist fiber strands is equal, and the braiding cycle knot length is 4-5 times of the diameter of the hollow braided rope.

Generally, a hollow braided rope flat belt is subjected to multiple-time cross sewing, one end of the hollow braided rope flat belt is mutually overlapped with the other first end, multiple times of sewing are carried out on the overlapped part, sewing threads are all zigzag, the height of the zigzag sewing threads in each sewing process is larger than that of the zigzag sewing threads sewn at the previous time, the length of the sewing threads in the length direction of the rope flat belt is also larger than that of the sewing threads sewn at the previous time, after multiple times of sewing are carried out in sequence, the sewing threads at the next time completely cover the sewing threads at the previous time, and the zigzag sewing threads of the sewing threads at each time are mutually crossed to form a firm sewing part without losing the strength of the hollow braided rope flat belt.

Generally, the weaving circulating knot length refers to a straight line distance between two positions when the same rope strand in the axial direction of a weaving rope appears at the same straight line position from the first time to the next time, and when the circulating knot length is 4-5 times of the diameter of the rope, the rope has a small pitch, so that the rope strands are favorably compactly gathered together, and a more three-dimensional state is presented when the rope is rotated, extruded and flattened in a subsequent process.

As an alternative embodiment, 16 fiber strands are selected to weave an annular hollow braided rope, the 16 fiber strands are divided into two groups of equal numbers, 8 of the fiber strands are in the Z-lay direction, and 8 of the fiber strands are in the S-lay direction, and then the hollow braided rope is obtained by braiding.

Further as an optional embodiment, the twist of the fiber strand in the Z-twist direction is 100-180 twist/m, the twist of the fiber strand in the S-twist direction is 100-180 twist/m, the increase of the twist is favorable for the strand to form a larger reverse twist breaking tendency, and the hollow braided rope is favorable for rotating and extruding to form a rope bandlet. As an alternative embodiment, the twist of the fiber strand in the Z twist direction is 150-180 twists/m, and the twist of the fiber strand in the S twist direction is set to be 150-180 twists/m.

Further alternatively, the hollow braided rope is subjected to rotary extrusion of a differential extrusion pair roller to obtain a hollow braided rope flat belt, the end parts of the rope flat belt are mutually overlapped, and the overlapped part is subjected to multiple times of cross zigzag sewing to obtain an annular hollow rope flat belt. The sewing thread adopted by the multiple times of cross zigzag sewing is the same as the material for weaving the hollow weaving rope, and the sewing length is set to be 5-10 cm. The extrusion double-roll comprises two rollers which are arranged together and can form rotary extrusion between the two rollers, the rotating shafts of the two rollers are parallel to each other, the two rollers can rotate in opposite directions, the rotating speeds are equal, the rotating directions are opposite, and traction force and extrusion force for weaving ropes are formed in the rotating process. Two groups of extrusion double rollers are generally adopted, the rotating speeds of the two groups of extrusion double rollers are different, and the hollow braided rope is subjected to rotary extrusion forming, namely two groups of differential extrusion double rollers. As an alternative embodiment, the differential pressure pinch pair rollers comprise a first set of pair rollers and a second set of pair rollers having different rotational speeds, the rotational speed of the first set of pair rollers being greater than the rotational speed of the second set of pair rollers. The hollow braided rope is extruded by the first group of double rollers and then deformed to a certain extent, and then further deformed under the rotary extrusion of the second group of double rollers, so that a braided rope flat belt is obtained. Since the rotating speed of the second group of counter rollers is lower than that of the first group of counter rollers, the braided rope between the first group of counter rollers and the second group of counter rollers is in a loose state in the process of rotating and extruding the braided rope, and the loose braided rope is beneficial to further deforming to form a flat belt under the pressurization of the second group of counter rollers. Considering that the different rotation speeds of the two pairs of rollers may cause the accumulation of the braided rope, it is possible to arrange for the rotation speeds of the two pairs of rollers to be independently controlled so as to be able to independently adjust the rotation speeds of the different pairs of rollers and thus adjust the degree of slack of the braided rope between the two pairs of rollers. As an alternative, during the process of rotating and pressing the braided rope to form the flat belt, the rotating speed of each set of pressing rollers can be dynamically adjusted, so that the braided rope between the two sets of pressing rollers is in a stable and loose state.

As an alternative embodiment, the ratio of the rotation speed of the first group of counter rollers to the rotation speed of the second group of counter rollers is set to be 1.03-1.08: 1. As an alternative embodiment, the rotation speed ratio of the first group of counter rollers and the second group of counter rollers is dynamically adjusted between 1.03 and 1.08: 1.

As an optional implementation manner, a third group of squeezing roller pairs may also be further provided, the rotation speed of which is lower than that of the second group of squeezing roller pairs, so as to realize third rotation squeezing on the hollow braided rope, i.e. three groups of differential squeezing roller pairs, wherein the rotation speed of each group of squeezing roller pairs can be independently adjusted, and dynamic adjustment can be realized in the production process, so as to realize adjustment on the slack degree of the braided rope between the two groups of squeezing roller pairs.

As an alternative embodiment, a plurality of groups of extrusion double rollers can be further arranged to form a plurality of stages of differential extrusion double rollers, so that the extrusion deformation of the braided rope can be well controlled.

As an alternative embodiment, a pressing roller pressure adjusting mechanism may be provided to adjust the pressure between the pressing rollers to effectively control the rotary pressing effect on the braided rope. The pressure is usually adjusted according to the kind of fibres, the diameter of the braided rope, etc.

Some embodiments disclose an endless hollow braided rope flat belt, the first and second pairs of rollers being disposed in a common vertical plane, and the axes of rotation of the first and second pairs of rollers being perpendicular to the common vertical plane. The second set of counter-rollers so positioned is located below the first set of counter-rollers to facilitate the loose braided rope remaining in a stable position on the second set of counter-rollers. Further, as an alternative embodiment, the first set of counter rollers and the second set of counter rollers are arranged alternately such that the second set of counter rollers is arranged below the side of the first set of counter rollers, making the slack state of the braided rope easier to control.

As an alternative embodiment, the first set of counter-rollers and the second set of counter-rollers are staggered. The first group of counter rollers and the second group of counter rollers are arranged in the same vertical plane, the rotating shafts of the first group of counter rollers and the second group of counter rollers are perpendicular to the vertical plane, the first group of counter rollers and the second group of counter rollers are further arranged in a staggered mode, and the second group of counter rollers are prevented from being arranged right below the first group of counter rollers; the second group of double rollers are arranged below the first group of double rollers, so that the weaving rope can form a natural drooping state between the two groups of double rollers, and the loosening degree of the weaving rope can be effectively controlled by controlling the length of the weaving rope between the two groups of double rollers.

Alternatively, the multiple sets of pressure counter-rollers are arranged in the same vertical plane, and the rotation axis of each set of pressure counter-roller is perpendicular to the same vertical plane. In the multiple groups of extrusion rollers arranged in this way, the rear group of extrusion rollers is positioned below the front group of extrusion rollers, so that the loose braided rope can be kept in a stable position on the extrusion rollers. Further, as an alternative embodiment, two sets of directly adjacent pressing double rollers are staggered so that the succeeding pressing double roller is disposed below the side of the preceding pressing double roller, making it easier to control the slack state of the braided rope.

As an alternative embodiment, the fiber strands making up the endless hollow braided rope flat include natural fiber strands, chemical fiber strands or mixed fiber strands. For example, the endless hollow braided rope flat may be made of any one of polyamide fiber, ultra-high molecular weight polyethylene fiber, carbon fiber, silk fiber, or a combination thereof.

As an alternative embodiment, the use of the hollow loop type rope flat belt comprises winding one end of the hollow loop type rope flat belt on the main bearing rope by prussian knots, and hanging the other end of the hollow loop type rope flat belt on the human body through a D-shaped hook and connecting the hollow loop type rope flat belt with a safety belt worn by the human body.

As an alternative embodiment, the annular hollow braided rope flat belt is made according to the following method:

selecting fibers with a certain specification;

fiber stranding and twisting to obtain a fiber strand;

the fiber rope strands are woven into a hollow woven rope under a pressure applying state;

the braided hollow braided rope deforms under the rotary extrusion of at least two groups of extrusion double rollers, the rotating speeds of the extrusion double rollers are set to be different, and finally the braided hollow braided rope is shaped into a flat belt;

the hollow flat weaving belt is sewn for multiple times to obtain an annular hollow flat weaving belt.

The technical details are further illustrated in the following examples.