Production process and system suitable for curved bead yarn

Abstract

The invention discloses a production process and system suitable for curved bead yarn, and belongs to the technical field of curved bead yarn production. In order to effectively solve the problems of complex working procedures, large equipment investment and the like in the existing curved bead yarn preparation process, a KV2002 type high-speed silk winder is transformed, a compressed air pipe is additionally arranged, viscose filaments and nylon filaments are interlaced under the action of compressed air by utilizing a nozzle with a specific structure, spooling and silk winding working procedures are omitted, and a twisted yarn machine and a high-speed hank reeling machine are matched, so that the curved bead yarn is prepared. The processing flow of the curved bead yarn is optimized, the interlacing procedure and the reeling procedure are integrated, the curved bead yarn is manufactured through the three procedures of interlacing, yarn twisting and twisting, then the production procedures are reduced, and the production cost is saved.

Description

Technical Field

[0001] The present invention specifically relates to a production process and system suitable for curved bead yarn, belonging to the technical field of curved bead yarn production. Background Art

[0002] The market of rayon embroidery thread has shrunk seriously due to the low price and high strength of polyester embroidery thread in the market, while the consumption of polyester embroidery thread in the textile market has increased significantly. Curved bead yarn is a blended yarn (CN2739209Y), which is mostly composed of viscose fiber and nylon (or spandex). According to different varieties, it is combined in a certain proportion to combine the advantages of viscose filament and nylon. It can be woven into a fabric with excellent performance, easy to wash and maintain, breathable, moisture-absorbent, excellent elasticity, good coloring, soft and wear-resistant, and skin-friendly.

[0003] At present, the equipment used in the production of curved bead yarn mainly includes: networking machine, doubling machine, stranding machine, secondary twisting machine, grooved drum machine and yarn reeling machine (twisting machine). The production process of curved bead yarn mainly includes six steps: networking → doubling (primary twisting) → stranding → doubling (secondary twisting) → winding (grooved drum) → twisting. Among them, the production of curved bead yarn must go through the networking process, and the existing networking equipment can only realize separate stranding, and cannot realize further winding, twisting, etc., and thus there are problems such as complex process and large equipment investment.

[0004] The prior art "CN204643350U A silk winding machine with wind pre-screening function" discloses: the upper part of the Venturi dust extraction tube is connected to the compressed air tube, and the lower part of the Venturi dust extraction tube is provided with an air jet tube, but it is mainly used to extract the debris generated in the processing process, provide a good processing environment, and reduce the harm of production to workers; "CN108728970A A composite yarn of nylon filaments twisted with viscose staple yarn and its preparation method" combines the viscose staple fiber and nylon filaments that are not easy to be composited together by using the method of air flow net splicing strands, and the elastic properties of the nylon filaments are stretched by the yarn guide and tension control device, and the composite yarn bundle is given elastic properties again while being networked, but it aims to solve the problems of high production cost, complicated production steps and thick texture of the formed curved bead yarn in the prior art.

[0005] Therefore, a production process and system of curved bead yarn with simple procedures and low costs is needed. Summary of the invention

[0006] In order to effectively solve the problems of complex procedures and large equipment investment in the existing preparation process of curved bead yarn, the KV2002 high-speed winding machine was modified, a compressed air pipe was added, and a nozzle was used to make the viscose filament and nylon network under the action of compressed air, omitting the winding and winding processes. The twisting machine and the high-speed twisting machine were then used to optimize the processing flow of curved bead yarn, and the network process and the winding process were integrated. The curved bead yarn was made by three processes: network → twisting → twisting, thereby reducing the production process and saving the production cost. Therefore, a production process and system suitable for curved bead yarn were proposed.

[0007] In order to achieve the above technical objectives, the following technical solutions are proposed:

[0008] The first purpose of the technical solution is to provide: a production process suitable for curved bead yarn, comprising the following steps:

[0009] S1: Network

[0010] Through the wire guide hook I, the nylon yarn is introduced into the nozzle inlet of the high-speed winding machine at a speed of 480-550m / min;

[0011] The viscose filaments are introduced into the nozzle inlet of the high-speed winding machine at a speed of 480-550m / min by using a tensioner I. The tensioner I is a comb-type tensioner, and the tension value of the tensioner I is controlled to be 16-20g, that is, tension is applied to the viscose filaments to prevent the filaments from being tangled around the three-element bobbin after the strands are plied.

[0012] The compressed air pressure in the nozzle is controlled to be 0.16-0.2MPa. The viscose filaments and nylon yarns pass through the yarn channel in the nozzle and are subjected to the jet airflow in the vertical direction. After the lateral impact, the nylon yarns and the viscose filaments are periodically compounded and entangled into a bundle of twists to synthesize the network yarn. Then, the network yarn is guided by the wire guide hook II and wound onto the three-element bobbin. The winding speed is controlled to be 480-550m / min.

[0013] Among them, the wire guide hook II plays a guiding role, stabilizing the yarn tension, normalizing the balloon shape, stabilizing the spindle vibration, reducing end breakage, reducing the hairiness, and improving the yarn quality;

[0014] The compressed air pressure is controlled by the pressure regulating valve, the pressure stabilizing valve and the pressure sensor on the compressed air main pipe. The compressed air pressure value is adjusted by adjusting the pressure regulating valve switch (there is a pressure display on the pressure regulating valve). The pressure stabilizing valve is used to stabilize the pressure difference between the air inlet of the pressure regulating valve and the air outlet of the nozzle to prevent the pressure fluctuation of the compressed air provided to the generation system, so as to keep the given pressure. The pressure sensor displays the pressure value.

[0015] S2: Twisting

[0016] The high-speed winding machine at the front side is used for network and winding processing to form a three-dimensional network tube. In this way, more than two three-dimensional network tubes can be composite twisted through the twisting machine to facilitate the primary twisting, stranding and secondary twisting processing. The specific steps are as follows:

[0017] Through the wire hook, two or more three-element network cylinders are introduced into the wire doubling device; the wire doubling device is used to gather the two or more network yarns; then, the gathered yarns are wound on the pressure roller, and the pressure roller is used to press the gathered yarns on the roller roller for twisting;

[0018] Subsequently, the twisted yarn is guided by the wire guide hook III to pass through the leaf plate, which limits the position of the yarn to prevent it from swinging left and right; then, the yarn is passed through the steel collar, which rotates on the steel collar to wind the yarn onto the bobbin;

[0019] Among them, the control is: the initial twist is 630±20T, twist direction S; the secondary twist is 530±20T, twist direction Z. Too high initial twist is easy to cause the yarn to break, which is not conducive to subsequent processing; too low twist leads to uneven appearance of the yarn; similarly, too high secondary twist is easy to cause single yarn to break, and too low twist leads to uneven appearance of the yarn. The specific twist direction is determined according to the textile texture requirements of downstream customers; and the winding speed is 11-15m / min;

[0020] S3: Stranding

[0021] Through the tensioner II, the yarn on the bobbin is introduced into the tension roller;

[0022] Under the tension and guidance of the tension rod, the yarn is wound around the twist frame, and the twist frame rotates to form a twist, thus obtaining a curved bead yarn;

[0023] Among them, the circumference of the twisted wire is controlled to be 1.27-1.34m, which is set to meet the packaging needs of customers; the twisting speed is 400-500r / min, which is set according to the strength of the twisted yarn.

[0024] The second purpose of the technical solution is to provide: a production system suitable for curved bead yarn, including a high-speed winding machine, a twisting machine and a high-speed twisting machine, wherein:

[0025] High-speed wire winding machine: including a wire stacking platform and a tensioner I, a wire guide hook I, a nozzle and a wire guide hook II arranged on one side of the wire stacking platform, the tensioner I is arranged on the tensioner I mounting frame, the wire guide hook I is arranged on the wire guide hook I mounting frame, the nozzle is arranged on the nozzle frame, the nozzle is connected with a compressed air inlet pipe, the compressed air inlet pipe is connected with the compressed air main pipe (such as: welding method), the compressed air enters into the compressed air inlet pipe through the compressed air main pipe, and then, through the nozzle on the nozzle frame, the compressed air is sprayed, and the flow direction of the compressed air in the nozzle is perpendicular to the movement direction of the wire strip in the wire path;

[0026] The compressed air main pipe is equipped with a pressure sensor, a pressure stabilizing valve and a pressure regulating valve, and the pressure sensor, the pressure stabilizing valve and the pressure regulating valve are interlocked by electrical signals;

[0027] The wire guide hook II is arranged at the rear side of the nozzle station, and a three-element bobbin is arranged at the rear side of the wire guide hook II station, and a continuous passage for network and winding is formed between the wire stacking platform, the nozzle, the wire guide hook II and the three-element bobbin;

[0028] The nozzle includes a wire channel tube and an air inlet pipe. The inner cavity of the wire channel tube forms a wire channel for the silk thread to flow. One end of the wire channel tube is a wire inlet, and the other end is a wire outlet. A continuous passage for nylon yarns and viscose filament networks is formed between the wire inlet, the wire channel and the wire outlet. The air inlet pipe is connected to the middle of the wire channel tube and has a T-shaped structure. The air inlet pipe is installed on the nozzle rack (specifically, a spring buckle connection can be used). Compressed air enters the nozzle rack connected to the compressed air inlet pipe (the connection method is a threaded connection) and enters the air inlet pipe. The air inlet pipe sprays compressed air into the wire channel, and the flow direction of the compressed air is perpendicular to the transmission direction of the silk thread.

[0029] Wire twisting machine: It is located at the rear side of the high-speed winding machine. The Z98 type twisting machine is used. It can perform primary twisting, stranding and re-twisting on the network wire processed by the high-speed winding machine. Each spindle position of the twisting machine includes an upper spindle bar, a wire hook, a wire doubling device, a pressure roller, a roller roller, a wire guide hook III, a leaf plate, a steel collar and a lower spindle bar arranged in sequence. A continuous passage for primary twisting, stranding and re-twisting of the network wire is formed between the upper spindle bar, the wire hook, the wire doubling device, the pressure roller, the roller roller, the wire guide hook III, the leaf plate, the steel collar and the lower spindle bar;

[0030] High-speed twisting machine: It is located at the rear side of the twisting machine. The high-speed twisting machine includes a tensioner II, a tensioning rod and a twisting frame arranged in sequence. A continuous passage for the network wire to be twisted is formed between the tensioner II, the tensioning rod and the twisting frame.

[0031] The control system involved in this technical solution: The KV2002 high-speed winding machine adopts a control system for timely monitoring, and sets size control parameters to meet the requirements of the twisting machine. The length and size of the network ternary are controlled by four indicators: the inner length of the ternary tube, the outer length, the empty tube diameter, and the full tube diameter. If the length is too long, a trumpet tube will be formed, and if it is too short, a clamped tube will be formed. Among them, the inner edge length is 130-135mm, the outer edge length is 130-135mm, the empty tube diameter is 35-40mm, and the full tube diameter is 78-82mm; the forming control parameters are: wire guide speed 40-50mm / s, winding position 5-10mm, and micro-difference length 1-3mm. The wire guide speed is the wire travel speed, which affects the forming of the wire; if the winding position is too small, it will rub the edge, and if it is too large, the finished product will be unsatisfactory and the length will be insufficient; a reasonable micro-difference length can prevent wire overlap; the winding speed refers to the speed of the KV2002 high-speed winding machine winding the network three-element cylinder. If the winding speed is too fast, the wire will produce broken ends and hairy wires, and if it is too slow, it will affect the network twist number. For this reason, the winding speed is set to 480-550m / min.

[0032] In the present technical scheme, positional relationships such as "upper", "one side", "rear side of the workstation", "inside", "middle", "interior", "one end", "the other end", "between", and "middle" are defined according to the situations under actual usage conditions and are conventional terms in this technical field, as well as conventional terms used by technical personnel in this field in actual use.

[0033] In the description of this technical solution, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "provided with", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this technical solution can be understood according to specific circumstances.

[0034] The beneficial technical effects brought about by adopting this technical solution are:

[0035] The present invention realizes the integration of the equipment of the two-step process of networking and winding, and reduces the cost investment of the equipment for producing curved bead yarn; the twisting machine, the high-speed twisting machine and the modified high-speed winding machine are used to streamline the production and processing flow of the curved bead yarn, and the purpose of completing the processing in three steps is achieved, which accelerates the high-quality development of the textile industry, helps expand the market scale of the curved bead yarn, and alleviates the problem of overcapacity after the shrinkage of the embroidery thread market;

[0036] The twist of the curved bead yarn prepared by the invention is uniform, and after being straightened, the number of twisting points in each meter of the twisted synthetic filament is greater than 80. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a flow chart of the production process of the present invention;

[0038] Figure 2 It is a structural block diagram of the production system in the present invention;

[0039] Figure 3 Schematic diagram of the structure of the high-speed silk winding machine involved in the present invention (I);

[0040] Figure 4 Schematic diagram of the structure of the high-speed silk winding machine involved in the present invention (II);

[0041] Figure 5 It is a schematic diagram of the working principle of the high-speed silk winding machine involved in the present invention;

[0042] Figure 6 is a cross-sectional view of the nozzle of the present invention;

[0043] Figure 7 is a side view of the nozzle of the present invention;

[0044] Figure 8 It is a structural diagram of the nozzle holder in the present invention;

[0045] Fig. 9 This is a real picture of the network yarn after the network process in the present invention;

[0046] Fig.10 This is a physical picture of the ternary network cylinder after the network process in the present invention;

[0047] Fig.11 This is a physical picture of the curved bead yarn product after the hanking process in the present invention;

[0048] Fig.12 It is a production process flow chart in the prior art;

[0049] Fig.13 It is a structural block diagram of a production system in the prior art;

[0050] In the figure, 1, high-speed winding machine, 10, wire stacking table, 11, tensioner I, 12, wire guide hook I, 13, nozzle, 131, wire channel cylinder, 132, air inlet pipe, 133, wire channel, 134, wire inlet, 135, wire outlet, 14, wire guide hook II, 15, tensioner I mounting frame, 16, wire guide hook I mounting frame, 17, nozzle frame, 171, spring;

[0051] 2. Twisting machine;

[0052] 3. High-speed stranding machine, 4. Compressed air inlet pipe, 5. Compressed air main pipe, 51. Pressure regulating valve, 52. Pressure regulating valve, 53. Pressure sensor, 6. Three-element bobbin. DETAILED DESCRIPTION

[0053] The following is a clear and complete description of the technical solutions 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. 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.

[0054] The existing equipment used in the production of curved bead yarn mainly includes: network machine, two-for-one twisting machine, stranding machine, secondary twisting machine, groove drum machine and yarn reeling machine (twist machine). The production process of curved bead yarn mainly includes six steps: network → two-for-one twisting (primary twisting) → stranding → two-for-one twisting (secondary twisting) → winding (groove drum) → twisting (such as Figure 12-13 As shown), the production of curved bead yarn must go through a networking process, and the existing networking equipment can only achieve separate plying, and cannot achieve further winding, twisting, etc., which leads to problems such as complex process and large equipment investment.

[0055] To this end, the present invention transforms the KV2002 high-speed winding machine, adds a compressed air pipe, and uses a nozzle to enable the viscose filament and nylon to achieve networking and winding under the action of compressed air. The processed three-element network cylinder can be directly put on the twisting machine for twisting, stranding and re-twisting, so as to form a curved yarn. The production of curved yarn that originally required five kinds of equipment and six processes, including networking (network machine), primary twisting (double twisting machine), stranding (stranding machine), re-twisting (double twisting machine), winding (groove drum machine) and twisting (twisting machine), is reduced to only three kinds of equipment and three processes, including networking (winding machine), twisting (twisting machine) and twisting (twisting machine), thereby optimizing the production process of curved yarn.

[0056] The operations involved are as follows:

[0057] 1. Set the size control parameters, forming control parameters, winding speed and other parameters of the high-speed winding machine;

[0058] 2. Place the nylon yarn and viscose filament raw materials on the wire pile table, pass the nylon yarn through the wire guide hook Ⅰ, the nozzle wire inlet, and the wire guide hook Ⅱ respectively, pass the viscose filament through the tensioner Ⅰ, the nozzle wire inlet, and the wire guide hook Ⅱ respectively, then wind the nylon yarn and viscose filament together onto the three-element bobbin, and start the high-speed winding machine;

[0059] 3. After the high-speed silk winding machine is turned on, immediately open the compressed air regulating valve and set the corresponding compressed air pressure;

[0060] 4. After the three-element bobbin is fully wound, a three-element network tube is formed. The two three-element network tubes are twisted and stranded using a twisting machine to combine them into a curved bead yarn, and twisted to the required twist of the product (the twisting machine twist is set according to the requirements);

[0061] 5. After twisting and stranding, the strands are processed into stranded products using a stranding machine. The purpose of using a high-speed stranding machine in this technical solution is to improve production efficiency.

[0062] This is illustrated by the following example.

[0063] Example 1

[0064] This embodiment provides: a production process suitable for curved bead yarn, such as Figure 1 As shown, the following steps are included:

[0065] S1: Network

[0066] like Figure 5 As shown, the nylon yarn is introduced into the nozzle inlet 134 on the high-speed winding machine 1 at a speed of 480-550 m / min through the wire guide hook Ⅰ12;

[0067] The viscose filaments are introduced into the nozzle inlet 134 on the high-speed winding machine 1 at a speed of 480-550 m / min by using a tensioner Ⅰ11; the tensioner Ⅰ11 is a comb-type tensioner, and the tension value of the tensioner Ⅰ11 is controlled to be 16-20 g, that is, tension is applied to the viscose filaments to prevent the filaments from being tangled around the three-element bobbin 6 after the strands are plied;

[0068] The compressed air pressure in the nozzle 13 is controlled to be 0.16-0.2MPa. The viscose filaments and nylon yarns pass through the yarn channel 133 in the nozzle 13 and are subjected to the jet airflow in the vertical direction. After the lateral impact, the nylon yarns and the viscose filaments are periodically compounded and entangled into a bundle of twists to synthesize the network yarn. Then, the network yarn is guided by the wire guide hook II 14 and is wound onto the three-element bobbin 6 (such as Figure 9-10 shown);

[0069] Among them, the wire guide hook II 14 plays a guiding role, stabilizing the yarn tension, normal balloon shape, and stabilizing spindle vibration.

[0070] Reduce ends down, reduce hairiness, and improve yarn quality;

[0071] The compressed air pressure is controlled by the pressure regulating valve 52, the pressure stabilizing valve 51 and the pressure sensor 53 on the compressed air main pipe 5. The compressed air pressure value is adjusted by adjusting the switch of the pressure regulating valve 52 (a pressure display is provided on the pressure regulating valve 52). The pressure stabilizing valve 51 is used to stabilize the pressure difference between the air inlet of the pressure regulating valve 52 and the air outlet of the nozzle 13 to prevent the pressure fluctuation of the compressed air provided to the generating system so as to maintain the given pressure. The pressure sensor 53 displays the pressure value.

[0072] S2: Twisting

[0073] The high-speed winding machine 1 on the front side is used for network and winding processing to form a three-dimensional network tube. In this way, more than two three-dimensional network tubes can be compositely twisted through the twisting machine 2, so as to realize the processing of primary twisting (primary twisting degree is 630±20T, twisting direction S), stranding and secondary twisting (secondary twisting degree is 530±20T, twisting direction Z). The specific steps are as follows:

[0074] Through the wire hook, two or more three-element network cylinders are introduced into the wire doubling device; the wire doubling device is used to gather the two or more network yarns; then, the gathered yarns are wound on the pressure roller, and the pressure roller is used to press the gathered yarns on the roller roller for twisting;

[0075] Subsequently, the twisted yarn is guided by the wire guide hook III to pass through the leaf plate, which limits the position of the yarn to prevent it from swinging left and right; then, the yarn is passed through the steel collar, which rotates on the steel collar to wind the yarn onto the bobbin;

[0076] S3: Stranding

[0077] Through the tensioner II, the yarn on the bobbin is introduced into the tension roller;

[0078] Under the tension and guidance of the tension rod, the yarn is wound onto the twist frame, which rotates to form a twist (such as Fig.11 The circumference of the twisted wire is controlled to be 1.27-1.34m, and the twisting speed is 400-500r / min.

[0079] In addition, the control system involved: The KV2002 high-speed winding machine 1 uses a control system for timely monitoring, and sets size control parameters to meet the requirements of the twisting machine 2. The length and size of the network ternary are controlled by four indicators: the inner length of the ternary tube, the outer length, the empty tube diameter, and the full tube diameter. If the length is too long, a trumpet tube will be formed, and if it is too short, a clamped tube will be formed. Among them, the inner edge length is 130-135mm, the outer edge length is 130-135mm, the empty tube diameter is 35-40mm, and the full tube diameter is 78-82mm; the forming control parameters are: wire guide speed 40-50mm / s, winding position 5-10mm, and micro-difference length 1-3mm. The wire guide speed is the wire travel speed, which affects the forming of the wire; if the winding position is too small, it will rub the edge, and if it is too large, the finished product will be unsatisfactory and the length will be insufficient; a reasonable micro-difference length can prevent the wire from overlapping; the winding speed refers to the speed of the KV2002 high-speed winding machine 1 winding the network three-element cylinder. If the winding speed is too fast, the wire will produce broken ends and hairy wires, and if it is too slow, it will affect the network twist number. For this reason, the winding speed is set to 480-550m / min, and preferably, the winding speed is 500m / min.

[0080] Example 2

[0081] The present embodiment provides: a winding machine for producing curved bead yarn, comprising a wire stacking platform 10 and a tensioner Ⅰ11, a wire guide hook Ⅰ12, a nozzle 13 and a wire guide hook Ⅱ14 arranged on one side of the wire stacking platform 10, the tensioner Ⅰ11 is arranged at the front side of the station of the nozzle 13, the wire guide hook Ⅰ12 is arranged at the front side of the station of the nozzle 13, the wire guide hook Ⅱ14 is arranged at the rear side of the station of the nozzle 13, and a three-element bobbin 6 is arranged at the rear side of the station of the wire guide hook Ⅱ14; the nozzle 13 is connected to a compressed air inlet pipe 4;

[0082] A continuous passage for introducing viscose filaments is formed between the filament stacking table 10, the tensioner I 11 and the nozzle 13;

[0083] A continuous passage for introducing nylon yarns is formed between the wire pile platform 10, the wire guide hook I 12 and the nozzle 13;

[0084] A continuous passage for the network and winding of viscose filaments and nylon yarns is formed between the wire stacking platform 10, the nozzle 13, the wire guide hook II 14 and the three-element bobbin 6.

[0085] Example 3

[0086] On the basis of Example 2, this example further defines the nozzle 13 to further illustrate the technical solution.

[0087] The nozzle 13 includes a wire channel tube 131 and an air inlet pipe 132. The inner cavity of the wire channel tube 131 forms a wire channel 133 for the circulation of the wire thread. One end of the wire channel tube 131 is a wire inlet 134, and the other opposite end is a wire outlet 135. A continuous passage for the nylon yarn and the viscose filament network is formed between the wire inlet 134, the wire channel 133 and the wire outlet 135. The inner cavity of the air inlet pipe 132 is connected to the wire channel 133, and the inner cavity of the air inlet pipe 132 is perpendicular to the wire channel 133.

[0088] Preferably, the nozzle 13 is a T-shaped nozzle 13, and the wire tube 131 and the air inlet pipe 132 are integrally formed, which effectively improves the integrity of the nozzle 13 structure and facilitates the networking of the viscose filaments and the nylon filaments.

[0089] Furthermore, the air inlet pipe 132 is connected to the middle of the yarn tube 131, thereby improving the stability and uniformity of the viscose filament and nylon yarn network.

[0090] Example 4

[0091] On the basis of Examples 1-3, this example further limits the installation of the tensioner Ⅰ11, the wire guide hook Ⅰ12, the nozzle 13 and the wire guide hook Ⅱ14 to further illustrate the technical solution.

[0092] The tensioner Ⅰ11 is arranged on the tensioner Ⅰ mounting frame 15, the wire guide hook Ⅰ12 is arranged on the wire guide hook Ⅰ mounting frame 16, the nozzle 13 is arranged on the nozzle frame 17, and the tensioner Ⅰ mounting frame 15, the wire guide hook Ⅰ mounting frame 16 and the nozzle frame 17 are all arranged on the winding machine frame; the air inlet pipe 132 is installed on the nozzle frame 17 (such as Figure 6 As shown, a spring 171 snap connection may be used.)

[0093] Example 5

[0094] On the basis of Examples 1-4, this example further limits the control of the compressed air entering the nozzle 13 to further illustrate the technical solution.

[0095] The compressed air inlet pipe 4 is connected to the compressed air main pipe 5 (e.g., by welding), and the compressed air main pipe 5 is provided with a pressure sensor 53, a pressure stabilizing valve 51 and a pressure regulating valve 52. The pressure sensor 53, the pressure stabilizing valve 51 and the pressure regulating valve 52 are interlocked by electrical signals.

[0096] The compressed air enters the compressed air inlet pipe 132 through the compressed air main pipe 5, and then is sprayed into the compressed air through the nozzle 13 on the nozzle rack 17, and the flow direction of the compressed air in the nozzle 13 is perpendicular to the movement direction of the silk strip in the silk channel 133.

[0097] Example 6

[0098] Based on Example 1, this example provides: a production system suitable for curved bead yarn, such as Figure 2 As shown, it includes a high-speed winding machine 1, a twisting machine 2 and a high-speed twisting machine 3, wherein:

[0099] High speed winding machine 1: Figure 3-4 As shown, it includes a wire stacking platform 10 and a tensioner Ⅰ11, a wire guide hook Ⅰ12, a nozzle 13 and a wire guide hook Ⅱ14 arranged on one side of the wire stacking platform 10, the tensioner Ⅰ11 is arranged on the tensioner mounting frame, the wire guide hook Ⅰ12 is arranged on the wire guide hook Ⅰ mounting frame 16, and the nozzle 13 is arranged on the nozzle frame 17. The nozzle 13 is connected to a compressed air inlet pipe 4, and the compressed air inlet pipe 4 is connected to a compressed air main pipe 5 (such as: welding method), and the compressed air enters the compressed air inlet pipe 132 through the compressed air main pipe 5, and then, through the nozzle 13 on the nozzle frame 17, the compressed air is sprayed into, and the flow direction of the compressed air in the nozzle 13 is perpendicular to the movement direction of the wire strip in the wire path 133;

[0100] The compressed air main pipe 5 is provided with a pressure sensor 53, a pressure stabilizing valve 51 and a pressure regulating valve 52, and the pressure sensor 53, the pressure stabilizing valve 51 and the pressure regulating valve 52 are interlocked by electrical signals;

[0101] The wire guide hook II 14 is arranged at the rear side of the station of the nozzle 13, and a continuous passage for network and winding is formed between the wire stacking platform 10, the nozzle 13, the wire guide hook II 14 and the three-element bobbin 6;

[0102] Among them, Figure 6-7 As shown, the nozzle 13 includes a wire channel tube 131 and an air inlet pipe 132. The inner cavity of the wire channel tube 131 forms a wire channel 133, and the wire channel 133 is used for the flow of wire. One end of the wire channel tube 131 is a wire inlet 134, and the other end is a wire outlet 135. A continuous passage for the nylon yarn and the viscose filament network is formed between the wire inlet 134, the wire channel 133 and the wire outlet 135; the air inlet pipe 132 is connected to the middle part of the wire channel tube 131 and has a T-shaped structure. The air inlet pipe 132 is installed on the nozzle frame 17 (as shown in FIG. Figure 8 As shown, the spring 171 can be used for snap connection), the compressed air enters the nozzle holder 17 connected to the compressed air inlet pipe 132 (the connection method is threaded connection) and enters the inlet pipe 132, the inlet pipe 132 sprays the compressed air into the wire path 133, and the flow direction of the compressed air is perpendicular to the transmission direction of the wire strip;

[0103] Wire twisting machine 2: It is arranged at the rear side of the workstation of the high-speed winding machine 1. The Z98 type wire twisting machine is selected, which can perform primary twisting, stranding and re-twisting on the network wire processed by the high-speed winding machine 1. The wire twisting machine 2 includes an upper spindle bar, a wire hook, a wire doubling device, a pressure roller, a roller roller, a wire guide hook III, a leaf plate, a steel collar and a lower spindle bar arranged in sequence. A continuous passage for primary twisting, stranding and re-twisting of the network wire is formed between the upper spindle bar, the wire hook, the wire doubling device, the pressure roller, the roller roller, the wire guide hook III, the leaf plate, the steel collar and the lower spindle bar;

[0104] High-speed twisting machine 3: It is located at the rear side of the twisting machine 2. The HBF126 twisting machine is selected. The high-speed twisting machine 3 includes a tensioner II, a tension rod and a twisting frame arranged in sequence. A continuous passage for twisting the network wire is formed between the tensioner II, the tension rod and the twisting frame.

[0105] Discussion Example 1

[0106] Based on Example 1 and Example 6, this example uses nylon yarn (specification 40-70D) and viscose filament (specification 75-300D) as raw materials to prepare curved bead yarn. At the same time, the conditions involved in the production process (specifically including compressed air pressure) are discussed.

[0107] 1. Determination of compressed air pressure:

[0108] A compressed air main pipe is installed between the tensioner I and the wire guide hook II. Corresponding to each spindle position, the compressed air main pipe is connected to the compressed air inlet pipe, the nozzle is connected to the compressed air inlet pipe through a thread, and the nozzle is connected to the nozzle holder through a spring bayonet to realize compressed air intake. The wire tube in the nozzle is made of PVC material, and the wire path is made of FRPP material (PVC material has low cost under the condition of meeting basic coating requirements. FRPP material is used to meet the requirement of good heat resistance when the yarn passes at high speed); the pressure in the compressed air main pipe is controlled by the pressure regulating valve, pressure stabilizing valve and pressure sensor on the compressed air main pipe;

[0109] The test was conducted by setting different compressed air pressures, and the number of network nodes, node uniformity, and three-dimensional network tube forming were confirmed. The results are shown in Table 1 below;

[0110] Table 1

[0111]

[0112]

[0113] In order to ensure the quality of the nylon yarn and viscose filament network, the compressed air pressure is controlled to 0.16-0.2MPa.

[0114] 2. Determination of the tension value of tensioner Ⅰ:

[0115] Specifically, a comb-type tensioner is used, and the tension value is adjusted by the tension sheet on the corresponding tensioner. The tension value will directly affect the number of network nodes and the final forming. The specific results are shown in Table 2 below;

[0116] Table 2

[0117]

[0118] In order to ensure the network quality of nylon yarns and viscose filaments and ensure the formation of the ternary network tube, the tension value of the tensioner I is controlled to be 16-20g.

[0119] 3. Determination of network system control parameters:

[0120] The specific raw materials used are 120D viscose filament and 30D nylon yarn, as follows:

[0121] Table 3 Dimensional control parameters

[0122]

[0123] Table 4 Molding control parameters

[0124] index Guide wire speed (mm / s) Winding position (mm) Differential length(mm) Test scope 40-50 5-10 1-3 Best Value 45 6 2

[0125] Table 5 Winding speed

[0126] project Planning indicators First trial Second test Trial 3 The fourth test Winding speed (m / min) 400 450 500 600 Hair (root) ≤1 root 0 0 0 2 Decapitation (times) ≤1 time 0 1 0 2 Output per machine (kg / unit.day) 650 458 564 665 730 Select × × × √ ×

[0127] Therefore, in order to ensure the network quality of nylon yarns and viscose filaments, the winding speed is controlled to be 480-550m / min, preferably 500m / min.

[0128] Discussion Example 2

[0129] Based on Example 1 and Example 6, this discussion example adopts the following three curved bead yarn production methods to determine the best production method.

[0130] The details are as follows:

[0131] 1. Adopting the production method of "network-winding-twisting-twisting"

[0132] Among them, a grooved drum machine is used, and a nozzle and an air compression pipe are added to the grooved drum machine to realize the network and form a network drum; then, it passes through a wire winding machine to form a three-element network drum, and a twisting machine is used to realize the initial twisting, stranding and twisting; finally, a twisting machine is used to twist, which is recorded as production method 1;

[0133] 2. Adopting the "network-direct twisting-twisting" production method

[0134] Among them, a grooved drum machine is used, and a nozzle and an air compression pipe are added to the grooved drum machine to realize the network and form a network drum; then, the straight twisting machine is used for twisting; finally, a twisting machine is used for twisting, which is recorded as production method 2;

[0135] 3. Adopting the "network-twisting-twisting" production method

[0136] Among them, a KV2002 high-speed winding machine is used, and a nozzle and an air compression pipe are added to the KV2002 high-speed winding machine to realize the network and form a network tube; then, the winding machine is used to form a three-element network tube, and the twisting machine is used to realize the initial twisting, stranding and twisting; finally, the twisting machine is used to twist, which is recorded as production method 3 (that is, the production method adopted by the present invention);

[0137] It can be seen that compared with production method 1, production method 2-3 reduces the winding process;

[0138] Compared with production method 2, production method 3 is more difficult to modify. The KV2002 high-speed winding machine has its own tension frame, while the grooved drum machine does not have a tension frame and needs to be installed. Therefore, production method 3 has a good industrial production prospect.

[0139] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described with reference to the above embodiment, it is still possible for a person skilled in the art to modify the technical solutions described in the above embodiment or to replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A production process suitable for curved bead yarn, characterized in that: It includes the network process, the twisting process and the stranding process; In the web process: the nylon yarn is introduced into the nozzle inlet (134) on the high-speed winding machine (1) via the wire guide hook I (12); the viscose filament is introduced into the nozzle inlet (134) on the high-speed winding machine (1) using the tensioner I (11); the web yarn is synthesized between the nylon yarn and the viscose filament; then, the web yarn is guided out via the wire guide hook II (14) and wound onto a three-element bobbin (6) to form a three-element web bobbin; The control method includes: the tension value of the tensioner I (11) is 16-20 g, the compressed air pressure in the nozzle (13) is 0.16-0.2 MPa, and the flow direction of the compressed air is perpendicular to the conveying direction of the filament; the winding speed is 480-550 m / min; In the twisting process: two or more three-element network tubes are introduced into the wire doubling device through the wire hook to gather two or more network wires; then, the gathered network wires are wound on the pressure roller, and the gathered network wires are pressed on the roller roller through the pressure roller for twisting; then, the twisted network wires are guided by the wire guide hook III to pass through the leaf plate and the steel collar in sequence, and the network wires are wound onto the yarn tube to obtain the curved bead yarn; In the skeining process: the curved bead yarn on the yarn tube is introduced into the tension rod through the tensioner II, the curved bead yarn is wound onto the skein frame, and the skein frame is rotated to form a skein.

2. The production process for curved bead yarn according to claim 1, characterized in that: The nylon yarns enter the nozzle inlet (134) at a speed of 480-550 m / min, and the viscose filaments enter the nozzle inlet (134) at a speed of 480-550 m / min.

3. The production process for curved bead yarn according to claim 2 is characterized in that: In the network process, control: the inner length of the three-element network tube is 130-135mm, the outer length is 130-135mm, the empty tube diameter is 35-40mm and the full tube diameter is 78-82mm; The wire guide speed of the ternary network tube is 40-50mm / s, the winding position is 5-10mm and the micro-difference length is 1-3mm.

4. The production process for curved bead yarn according to claim 1, characterized in that: In the twisting process, the primary twist involved is 630±20T and the secondary twist is 530±20T; The winding speed of the gathered yarn on the pressure roller is 11-15m / min.

5. The production process for curved bead yarn according to claim 4, characterized in that: In the twisting process, the twist direction of the primary twist is S, and the twist direction of the secondary twist is Z.

6. The production process for curved bead yarn according to claim 1, characterized in that: In the stranding process, the circumference of the stranded wire is controlled to be 1.27-1.34m and the stranding speed is 400-500r / min.

7. A production system suitable for curved bead yarn, characterized in that: A production system used in the production process according to any one of claims 1 to 6, the production system comprising a high-speed winding machine (1), a twisting machine (2) and a high-speed twisting machine (3); The high-speed wire winding machine (1) comprises a wire stacking platform (10) and a tensioner I (11), a wire guide hook I (12), a nozzle (13) and a wire guide hook II (14) arranged on one side of the wire stacking platform (10), wherein the tensioner I (11) is arranged on a tensioner I mounting frame (15), the wire guide hook I (12) is arranged on a wire guide hook I mounting frame (16), the nozzle (13) is arranged on a nozzle frame (17), the nozzle (13) is connected to a compressed air inlet pipe (4), the wire guide hook II (14) is arranged on the rear side of the working position of the nozzle (13), and a three-element bobbin (6) is arranged on the rear side of the working position of the wire guide hook II (14), and a network and a continuous winding passage are formed between the wire stacking platform (10), the nozzle (13), the wire guide hook II (14) and the three-element bobbin (6); The twisting machine (2) is arranged at the rear side of the workstation of the high-speed winding machine (1), and each spindle position of the twisting machine (2) includes an upper spindle bar, a wire hook, a doubling device, a pressure roller, a roller roller, a wire guide hook III, a leaf plate, a steel collar and a lower spindle bar which are arranged in sequence, and a continuous passage for the initial twisting, doubling and re-twisting of the network wire is formed between the upper spindle bar, the wire hook, the doubling device, the pressure roller, the roller roller, the wire guide hook III, the leaf plate, the steel collar and the lower spindle bar; The high-speed stranding machine (3) is arranged at the rear side of the workstation of the twisting machine (2). The high-speed stranding machine (3) comprises a tensioner II, a tensioning rod and a stranding frame which are arranged in sequence. A continuous passage for stranding the network wire is formed between the tensioner II, the tensioning rod and the stranding frame.

8. The production system for curved bead yarn according to claim 7, characterized in that: The compressed air inlet pipe (4) is connected to a compressed air main pipe (5), and a pressure sensor (53), a pressure stabilizing valve (51) and a pressure regulating valve (52) are provided on the compressed air main pipe (5), and the pressure sensor (53), the pressure stabilizing valve (51) and the pressure regulating valve (52) are interlocked by an electrical signal.

9. The production system for curved bead yarn according to claim 7, characterized in that: The nozzle (13) comprises a wire channel tube (131) and an air inlet pipe (132); the inner cavity of the wire channel tube (131) forms a wire channel (133); one end of the wire channel tube (131) is a wire inlet (134), and the other end opposite thereto is a wire outlet (135); a continuous passage for a nylon yarn and a viscose filament network is formed between the wire inlet (134), the wire channel (133) and the wire outlet (135); The inner cavity of the air inlet pipe (132) is in communication with the silk channel (133), and the inner cavity of the air inlet pipe (132) is perpendicular to the silk channel (133).

10. The production system for curved bead yarn according to claim 9, characterized in that: The nozzle (13) is a nozzle (13) with a T-shaped structure, and the air inlet pipe (132) is connected to the middle part of the silk channel tube (131).

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