Splicing device
By using partially overlapping splicing channels and cyclonic airflow in the splicing device, combined with V-groove blocks and clamps, the splicing problem of high-rebound yarns was solved, and the strength, length and aesthetics were improved.
Patent Information
- Application Number
- CN202422891176.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Existing splicing devices are difficult to effectively process yarns made from high-rebound, high-elastic modulus fibers or filaments, resulting in problems such as low splice strength, insufficient length, and large friction loss.
The first and second splicing channels with partial overlap are combined with the rotary airflow, V-groove block and clamp to achieve interlaced winding of the yarn through twisting and untwisting actions. Combined with the friction anti-retraction effect of the V-groove, efficient splicing is achieved.
It improves the splicing effect of high-elastic yarn, ensures the strength, length and aesthetics of the splice, reduces the risk of yarn shrinkage, and improves the accuracy and consistency of the splicing.
Smart Images
Figure CN223458469U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to textile technology field especially, and relates to a twisting device. BACKGROUND
[0002] The task of the spinning and bobbin winding procedure is to process the ring spinning tube yarn into the specified shape bobbin, and there is the work of removing the yarn defect in the bobbin winding process, that is, the process of cutting the yarn and then connecting the tail ends of the cut yarn together through the twisting method. The quality of the joint directly affects the quality of the yarn and the feasibility of the weaving procedure and the fabric characteristics, and the main indexes contained therein include the strength, thickness, length and elasticity (elastic yarn) of the joint.
[0003] The twisting methods adopted by the bobbin winder on the market today mainly include air twisting, air mist twisting and rubbing twisting, and the most reasonable twisting method is adopted according to different yarn varieties. With the continuous diversification of yarn varieties, the adaptability of the twisting device is also continuously challenged. For some single yarn containing special fibers, core-spun yarn with high elasticity and the like, the twisting difficulty is relatively large, for example, the strength of the air twisting of high-count yarn made of lyocell fiber is low; the spandex filament of spandex core-spun yarn containing multiple thick filaments has relatively large elasticity, and the rubbing twisting is mostly used for twisting, but the joint length of the twisting is long, and the rubbing mechanical friction loss is large; in addition, for some core-spun yarn varieties with ordinary elasticity, even if the air mist twisting is used, the air mist twisting still has the situation of empty joint or low joint strength caused by the spandex elasticity.
[0004] Therefore, it is necessary to improve the twisting problem of the yarn prepared from high-elasticity and high-elasticity modulus fibers or filaments. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a twisting device to solve the problems in the prior art and improve the twisting effect of high-elasticity yarn.
[0006] To achieve the above-mentioned purpose, the utility model provides the following scheme.
[0007] The utility model provides a kind of twisting device, including twister, first V-groove block, second V-groove block, first holder and second holder;The twister has first twist passageway and second twist passageway;The axis of the first twist passageway and the axis of the second twist passageway are located on the same horizontal plane, and the longitudinal section of the first twist passageway and the second twist passageway partially overlaps;One end of the first twist passageway is communicated with one end of the second twist passageway;The first twist passageway has rotating first rotation direction airflow, the second twist passageway has rotating second rotation direction airflow, and the rotation direction of the first rotation direction airflow and the second rotation direction airflow is opposite;The first twist passageway is fixed with the first V-groove block and the first holder in sequence away from one end of the second twist passageway;The second twist passageway is fixed with the second V-groove block and the second holder in sequence away from one end of the first twist passageway;The first V-groove block has first V-groove, and the second V-groove block has second V-groove;The first holder has first clamping opening capable of being opened and closed, and the second holder has second clamping opening capable of being opened and closed;When twisting, first yarn located in the first twist passageway is disconnected on the side of the second holder away from the second V-groove block, and the part of first yarn close to its disconnected portion can be located in the second twist passageway and the second V-groove, and the position of first yarn away from its disconnected portion can be clamped by the first clamping opening;Second yarn located in the second twist passageway is disconnected on the side of the first holder away from the first V-groove block, and the part of second yarn close to its disconnected portion can be located in the first twist passageway and the first V-groove, and the position of second yarn away from its disconnected portion can be clamped by the second clamping opening;The first rotation direction airflow can make the same twisting action as the twist direction of second yarn itself on second yarn located in the first twist passageway;The second rotation direction airflow can make the same twisting action as the twist direction of first yarn itself on first yarn located in the second twist passageway.
[0008] Preferably, in vertical direction, the height of the first V-groove and the second V-groove is consistent, and the height of the first clamping opening and the second clamping opening is consistent;The axis height of the first twist passageway and the second twist passageway is higher than the height of the first V-groove, and the height of the first V-groove is higher than the height of the first clamping opening.
[0009] Preferably, the twister has upper opening, the upper opening is located above the first twist passageway and the second twist passageway, and the upper opening is communicated with the first twist passageway and the second twist passageway.
[0010] Preferably, the upper opening comprises an upper opening V-shaped groove and a vertical groove; the lower end of the upper opening V-shaped groove is communicated with the upper end of the vertical groove; the lower end of the vertical groove is communicated with the first twist joint channel and the second twist joint channel.
[0011] Preferably, the twist joint device has a first airflow cavity and a second airflow cavity; the communication structure of the first airflow cavity and the first twist joint channel is the same as the communication structure of the second airflow cavity and the second twist joint channel; the inner wall of the first twist joint channel is provided with a first airflow hole and a second airflow hole; the outlet airflow rotation directions of the first airflow hole and the second airflow hole are the same; the cross-sectional area of the first airflow hole is smaller than the cross-sectional area of the second airflow hole, so as to form a relatively high flow speed drag airflow layer and a relatively low flow speed push airflow layer; the drag airflow layer is located on the side of the push airflow layer close to the axis of the second twist joint channel; and the drag airflow layer and the push airflow layer jointly form the first rotation direction airflow.
[0012] Preferably, the second airflow hole is provided with a tapered flared end close to one end of the first airflow cavity; the large end of the tapered flared end is close to the first airflow cavity.
[0013] Preferably, the first clamp comprises a first yarn guide sheet and a first yarn pressing claw; the second clamp comprises a second yarn guide sheet and a second yarn pressing claw; the first yarn guide sheet is provided with a first yarn guide V-shaped groove; the first yarn pressing claw is located at the opening of the first yarn guide V-shaped groove; and the first yarn pressing claw and the first yarn guide V-shaped groove jointly form the first clamping opening; the second yarn guide sheet is provided with a second yarn guide V-shaped groove; the second yarn pressing claw is located at the opening of the second yarn guide V-shaped groove; and the second yarn pressing claw and the second yarn guide V-shaped groove jointly form the second clamping opening; the first yarn pressing claw is fixedly connected with a connecting shaft rod; the second yarn pressing claw is fixedly connected with the connecting shaft rod; and the connecting shaft rod can drive the first yarn pressing claw and the second yarn pressing claw to rotate around the axis of the connecting shaft rod and correspondingly change the size of the first clamping opening and the second clamping opening.
[0014] Preferably, the upper opening edges of the first V-shaped groove and the second V-shaped groove are provided with rounded corners.
[0015] Preferably, the first V-shaped groove comprises symmetrically arranged first and second flat surfaces; the lower end of the first flat surface is connected with the lower end of the second flat surface; the first yarn guide V-shaped groove comprises symmetrically arranged first and second yarn guide arc surfaces; the lower end of the first yarn guide arc surface is connected with the lower end of the second yarn guide arc surface.
[0016] Preferably, the twisting device comprises a twisting block and a twisting base; the first twisting channel and the second twisting channel are arranged on the twisting block; first gas channel grooves and second gas channel grooves are arranged on two opposite side walls of the twisting block respectively; the twisting base has a U-shaped mounting groove, and a ventilation channel is arranged at the bottom of the U-shaped mounting groove; the twisting block is fixedly arranged in the U-shaped mounting groove; the first gas channel groove and the second gas channel groove jointly form the first airflow cavity and the second airflow cavity with part of the side wall on the corresponding side of the twisting base; the first airflow cavity and the second airflow cavity are the same in shape, and the first airflow cavity and the second airflow cavity are in communication with the ventilation channel.
[0017] The utility model discloses relative to prior art has obtained following technical effect:
[0018] The twisting device provided by the utility model, by adopting two first twist joint channels and second twist joint channels with partially overlapped longitudinal sections, matching V-shaped groove blocks and clamps arranged on the outer sides respectively, when the first yarn and the second yarn are twisted, the respective end portions thereof are cut by corresponding mechanical scissors, and the corresponding broken places are untwisted by the untwisting pipes on the corresponding sides, that is, the broken places of the first yarn and the second yarn are in the form of fluffy fiber bundles, then, taking the first yarn as an example, the part of the first yarn in the second twist joint channel is subjected to the twisting action of the second rotational airflow, and the part of the first yarn in the first twist joint channel is subjected to the first rotational airflow and generates two actions, that is, the twisting action of the first yarn on one side in the second twist joint channel is continuously strengthened, and the part of the first yarn in the first twist joint channel is clamped and fixed by the first clamping opening on the side, so that the untwisting motion is generated, and the action of the second yarn in the first twist joint channel and the second twist joint channel is opposite, that is, the twisting action of the first yarn in the second twist joint channel and the untwisting action of the second yarn in the second twist joint channel, at this time, under the action of the second rotational airflow, the loose fiber bundles of the first yarn are intertwined on the second yarn segment in the untwisted state, forming the effect of the interlaced winding of the fiber bundles of the first yarn and the second yarn, enhancing the twist joint effect, and the same twist joint effect is formed in the first twist joint channel; based on the high resilience of the first yarn, the first yarn will shrink after being broken, and at this time, the part of the first yarn close to the broken place is in the first V-shaped groove, the first V-shaped groove is in the half-holding state for the position of the first yarn close to the broken place, that is, a large part of the area around the first yarn is in contact and friction with the inner wall of the first V-shaped groove, so that a certain anti-retraction effect is generated for the broken place of the first yarn, so as to ensure the length of the first yarn in the second twist joint channel and provide protection for the twist joint length of the first yarn and the second yarn, and the contact and friction rotating action between the first V-shaped groove and the first yarn and the second yarn can also generate the effect similar to twisting for the twist joint of the first yarn and the second yarn, and the knot effect similar to twisting appears; comprehensively, the airflow twist joint is formed at the overlapped position of the middle part of the first yarn and the second yarn, and the twist joint effect similar to twisting is formed at the end part of the broken place of the first yarn and the second yarn, so that the twist joint effect of the high-elasticity yarn can be improved.
[0019] Further, the first twist joint channel, the first V-shaped groove and the first clamping opening are respectively arranged in a certain height level, which is beneficial to reasonably control the tension of the yarn, and after the end part of the yarn is broken, the yarn can be better limited by the corresponding first V-shaped groove and second V-shaped groove, the retraction of the yarn is reduced, and the twist joint effect is improved.
[0020] Further, the setting of the upper opening facilitates the first yarn and the second yarn to enter the first twist joint channel and the second twist joint channel of the twist joint device, and the installation and use are simpler and more convenient; and the twist joint effect of the first yarn and the second yarn can be directly observed.
[0021] Further, the V-shaped groove facilitates the entry of the first and second yarns into the first and second twist joint channels, and the vertical groove further facilitates the entry of the first and second yarns into the space corresponding to the longitudinal cross-sectional overlapping region of the first and second twist joint channels.
[0022] Further, the communication structure of the first airflow cavity and the first twist joint channel is the same as that of the second airflow cavity and the second twist joint channel, which makes the entire twist joint device have similar working principles and modes in terms of airflow supply, simplifies the design and manufacturing process of the device, and enables unified standards and methods to be used in equipment debugging, maintenance, and daily operation, thereby reducing operation errors caused by structural differences and improving work efficiency. The drag airflow layer increases the gap between the yarn and the inner wall of the corresponding twist joint channel, increases the rotational speed of the airflow around the yarn, and thus increases the twist of the twist joint position, so that the thickness of the twist joint section can be made finer, thereby enhancing the overall appearance of the yarn.
[0023] Further, the conical flared structure can act as a buffer and adjuster, allowing the airflow to enter the second airflow hole more smoothly and uniformly, and then entering the twist joint channel, thereby ensuring the formation of stable rotational airflow in the twist joint channel.
[0024] Further, the structure of the V-shaped groove cooperating with the presser pawl can achieve precise positioning and clamping of the yarn. The presser pawl tightly clamps the yarn through cooperation with the V-shaped groove, effectively preventing the yarn from shifting or slipping during clamping, ensuring that the yarn is accurately positioned during twist joint operation, and improving the accuracy and quality of twist joint. The same connecting shaft is used to control the size change of the two clamping openings, so that the first and second clamping openings can maintain the same size change at any time, making the clamping force on the two yarns relatively uniform, avoiding the influence of twist joint quality caused by the difference in clamping force, thereby ensuring the consistency of the twist joint process and the quality of the twist joint product.
[0025] Further, the rounded corners can effectively prevent the yarn from directly contacting the sharp edges of the groove, allowing the yarn to smoothly transition when entering the groove, greatly reducing the risk of yarn abrasion, ensuring the integrity of the yarn, and helping to improve the strength and appearance quality of the yarn after twist joint.
[0026] Further, the first V-shaped groove is symmetrically provided with a first flat surface and a second flat surface, so that the bottom V-shaped angle formed is more likely to form contact friction between the yarns; and the first yarn guide V-shaped groove is formed by a first yarn guide arc surface and a second yarn guide arc surface, which can not only guide the yarn well, but also avoid excessive extrusion of the yarn on both sides to cause wear of the yarn.
[0027] Further, the twisting connector is composed of a twisting block and a twisting base, and the twisting block is fixedly arranged in a U-shaped mounting groove of the twisting base, so that the embedded mounting mode can provide stable support for the twisting block during work, effectively avoiding displacement or shaking of the twisting block due to external vibration or other factors, thereby ensuring the stability of the twisting device during operation, which is crucial for maintaining the accuracy and consistency of the twisting operation; since the two airflow cavities have the same structure and the same communication mode with the air passage, the airflow in the two twisting channels can be synchronously and accurately regulated when the airflow is adjusted. BRIEF DESCRIPTION OF DRAWINGS
[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.
[0029] Figure 1 The overall structure schematic diagram of the twisting device provided by the present application is shown in the figure.
[0030] Figure 2 The structure schematic diagram of the twisting device provided by the present application is shown in the figure.
[0031] Figure 3 The structure schematic diagram of the twisting device provided by the present application is shown in the figure.
[0032] Figure 4 The structure schematic diagram of the twisting device provided by the present application is shown in the figure.
[0033] Figure 5 The structure schematic diagram of the twisting device provided by the present application is shown in the figure.
[0034] Figure 6 The internal structure perspective view of the twisting block in the twisting device provided by the present application is shown in the figure.
[0035] Figure 7 The internal structure perspective view of the twisting block in the twisting device provided by the present application is shown in the figure.
[0036] Figure 8 The utility model provides a twist joint device first twist joint passageway and second twist joint passageway's communication schematic view is provided for the utility model,
[0037] Figure 9 The utility model provides a twist joint device first airflow hole and second airflow hole's structure schematic view is provided for the utility model,
[0038] In the drawing,
[0039] 10-twist jointer;11-twist joint block;111-first twist joint passageway;112-second twist joint passageway;113-upper open V-shaped groove;114-vertical groove;115-first airflow hole;116-second airflow hole;117-conical flared opening;12-twist joint base;13-first airflow cavity;14-second airflow cavity;
[0040] 20-first V-shaped groove block;
[0041] 30-second V-shaped groove block;
[0042] 40-first holder;41-first yarn guide;42-first yarn pressing claw;
[0043] 50-second holder;51-second yarn guide;52-second yarn pressing claw;
[0044] 60-twist joint base. DETAILED DESCRIPTION
[0045] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0046] The utility model aims at providing a twist joint device to solve the problems in the prior art and improve the twist joint effect on high-elasticity yarn.
[0047] To make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the utility model will be further described in detail in conjunction with the drawings and specific embodiments.
[0048] Embodiment one
[0049] This embodiment provides a twist joint device, such as Figures 1-9As shown, it comprises a twisting connector 10, a first V-shaped groove block 20, a second V-shaped groove block 30, a first holder 40 and a second holder 50; the twisting connector 10 has a first twisting channel 111 and a second twisting channel 112; the axis of the first twisting channel 111 and the axis of the second twisting channel 112 are located on the same horizontal plane, and the longitudinal section of the first twisting channel 111 and the second twisting channel 112 partially overlaps; one end of the first twisting channel 111 communicates with one end of the second twisting channel 112; the first twisting channel 111 has a rotating first rotational airflow, and the second twisting channel 112 has a rotating second rotational airflow, the rotational direction of the first rotational airflow is opposite to that of the second rotational airflow; the first V-shaped groove block 20 and the first holder 40 are fixedly arranged in sequence at the end of the first twisting channel 111 away from the second twisting channel 112; the second V-shaped groove block 30 and the second holder 50 are fixedly arranged in sequence at the end of the second twisting channel 112 away from the first twisting channel 111; the first V-shaped groove block 20 has a first V-shaped groove, and the second V-shaped groove block 30 has a second V-shaped groove; the first holder 40 has an openable and closable first clamping opening, and the second holder 50 has an openable and closable second clamping opening; during twisting, the first yarn located in the first twisting channel 111 is disconnected on the side of the second holder 50 away from the second V-shaped groove block 30, the part of the first yarn close to the disconnected part can be located in the second twisting channel 112 and the second V-shaped groove, and the position of the first yarn away from the disconnected part can be clamped by the first clamping opening; the second yarn located in the second twisting channel 112 is disconnected on the side of the first holder 40 away from the first V-shaped groove block 20, the part of the second yarn close to the disconnected part can be located in the first twisting channel 111 and the first V-shaped groove, and the position of the second yarn away from the disconnected part can be clamped by the second clamping opening; the first rotational airflow can make the same twisting action on the second yarn located in the first twisting channel 111 as the twisting direction of the second yarn itself; the second rotational airflow can make the same twisting action on the first yarn located in the second twisting channel 112 as the twisting direction of the first yarn itself.
[0050] By adopting the first and second twist joint channels 111 and 112 with partially overlapped longitudinal sections, and the V-shaped groove blocks and clamps arranged on the respective outer sides, when the first and second yarns are twisted, the respective ends thereof will be cut by the corresponding mechanical scissors, and the corresponding broken places will be untwisted by the untwisting pipes on the respective sides, that is, the broken places of the first and second yarns are in the form of fluffy fiber bundles, and then, taking the first yarn as an example, the part of the first yarn in the second twist joint channel 112 will be twisted by the second rotational airflow, and the part of the first yarn in the first twist joint channel 111 will produce two actions under the action of the first rotational airflow, that is, the first yarn on one side in the second twist joint channel 112 will continue to strengthen the twisting action, and the part of the first yarn in the first twist joint channel 111 will be untwisted because it is clamped and fixed by the first clamping opening on the side, and the action of the second yarn in the first and second twist joint channels 111 and 112 is opposite to that of the first yarn, that is, the first yarn is twisted in the second twist joint channel 112, and the second yarn is untwisted in the second twist joint channel 112, and at this time, under the action of the second rotational airflow, the loose fiber bundles of the first yarn are intertwined on the second yarn segment in the untwisted state, forming the effect of intertwining the fiber bundles of the first and second yarns, enhancing the twist joint effect, and the first and second yarns in the first twist joint channel 111 form the same twist joint effect. Based on the high resilience of the first yarn, it will shrink after being broken, and at this time, the part of the first yarn close to the broken place is in the first V-shaped groove, and the first V-shaped groove is in a half-holding state for the position of the first yarn close to the broken place, that is, a large part of the area around the first yarn is in contact and friction with the inner wall of the first V-shaped groove, thereby producing a certain anti-retraction effect for the broken place of the first yarn, to ensure the length of the first yarn in the second twist joint channel 112 and provide protection for the twist joint length of the first and second yarns, and the contact and friction rotating action between the first V-shaped groove and the first and second yarns can also produce a twisting effect similar to that of the first and second yarns, thereby improving the twist joint effect of the high-elasticity yarn.
[0051] Among them, the structure related setting of the twist joint device 10 is explained as follows:
[0052] In the optional scheme of the embodiment, it is more preferred that Figures 1-4As shown, the twisting connector 10 comprises a twisting block 11 and a twisting base 12; the twisting block 11 is provided with a first twisting channel 111 and a second twisting channel 112; the first gas channel groove and the second gas channel groove are respectively arranged on the two opposite side walls of the twisting block 11; the twisting base 12 is provided with a U-shaped mounting groove, and the bottom of the U-shaped mounting groove is provided with an air passage; the twisting block 11 is fixedly arranged in the U-shaped mounting groove; the first gas channel groove and the second gas channel groove jointly form a first airflow cavity 13 and a second airflow cavity 14 with the part of the side wall on the corresponding side of the twisting base 12; the first airflow cavity 13 and the second airflow cavity 14 are the same in shape, and both the first airflow cavity 13 and the second airflow cavity 14 are in communication with the air passage. The twisting connector 10 is composed of the twisting block 11 and the twisting base 12, and the twisting block 11 is fixedly arranged in the U-shaped mounting groove of the twisting base 12. This embedded mounting mode enables the twisting block 11 to obtain stable support during operation, effectively avoiding the displacement or shaking of the twisting block 11 caused by external vibration or other factors, thereby ensuring the stability of the twisting device during operation, which is crucial for maintaining the accuracy and consistency of the twisting operation. Since the two airflow cavities are the same in structure and consistent in communication mode with the air passage, the airflow in the two twisting channels can be synchronously and accurately regulated when the airflow is adjusted.
[0053] Specifically, the twisting block 11 and the twisting base 12 can be fixedly connected together by an adhesive method.
[0054] Specifically, Figure 8 is a structural schematic view of the twisting block 11 after being cut by a certain horizontal plane; Figure 9 is a structural schematic view of the twisting block 11 after being cut by a certain longitudinal plane.
[0055] In the optional scheme of the present embodiment, more preferably, as shown in Figures 1-7 and Figure 9 As shown, the twisting connector 10 has an upper opening, the upper opening is located above the first twisting channel 111 and the second twisting channel 112, and the upper opening is in communication with the first twisting channel 111 and the second twisting channel 112. The setting of the upper opening facilitates the entry of the first yarn and the second yarn into the first twisting channel 111 and the second twisting channel 112 of the twisting connector 10, making the installation and use more simple and convenient; and the twisting effect of the first yarn and the second yarn can be observed intuitively.
[0056] In the optional scheme of the present embodiment, more preferably, as shown in Figures 1-7 and Figure 9As shown, the upper opening includes an upper opening V-shaped groove 113 and a vertical groove 114; the lower end of the upper opening V-shaped groove 113 is communicated with the upper end of the vertical groove 114, and the lower end of the vertical groove 114 is communicated with the first twist joint channel 111 and the second twist joint channel 112. The upper opening V-shaped groove 113 is beneficial to the first yarn and the second yarn entering the first twist joint channel 111 and the second twist joint channel, and the vertical groove 114 is more convenient for guiding the first yarn and the second yarn to enter the space corresponding to the longitudinal cross-section overlapping area of the first twist joint channel 111 and the second twist joint channel 112.
[0057] In the optional scheme of the embodiment, preferably, as shown in Figures 6-9 As shown, the twist joint device 10 has a first airflow cavity 13 and a second airflow cavity 14; the communication structure of the first airflow cavity 13 and the first twist joint channel 111 is the same as the communication structure of the second airflow cavity 14 and the second twist joint channel 112; the inner wall of the first twist joint channel 111 is provided with a first airflow hole 115 and a second airflow hole 116, the outlet airflow rotation directions of the first airflow hole 115 and the second airflow hole 116 are the same, and the cross-sectional area of the first airflow hole 115 is smaller than that of the second airflow hole 116, so as to form a relatively high drag airflow layer and a relatively low push airflow layer, the drag airflow layer is located on the side of the push airflow layer close to the axis of the second twist joint channel 112, and the drag airflow layer and the push airflow layer jointly form a first rotation direction airflow. The communication structure of the first airflow cavity 13 and the first twist joint channel 111 is the same as the communication structure of the second airflow cavity 14 and the second twist joint channel 112, and such consistency makes the whole twist joint device have similar working principles and modes in terms of airflow supply, simplifies the design and manufacturing process of the device, and in the process of equipment debugging, maintenance and daily operation, unified standards and methods can be used to reduce operation errors caused by structural differences and improve work efficiency; the cooperation of the drag airflow layer and the push airflow layer is adopted, the drag airflow layer can increase the gap between the yarn and the inner wall of the corresponding twist joint channel, the rotation speed of the airflow around the yarn is increased, and thus the twist of the twist joint position of the yarn is increased, the thickness of the twist joint section can be made thinner, and the overall beauty of the yarn is enhanced.
[0058] In the optional scheme of the embodiment, preferably, as shown in Figures 6-7 and Figure 9 As shown, the second airflow hole 116 is provided with a tapered flared portion 117 close to one end of the first airflow cavity 13, and the large end of the tapered flared portion 117 is close to the first airflow cavity 13. The structure of the tapered flared portion 117 can play a buffering and adjusting role, which makes the airflow gather at the flared portion before entering the second airflow hole 116, so that the airflow can enter the second airflow hole 116 more stably and uniformly, and then enter the twist joint channel, so as to ensure that a stable rotation direction airflow is formed in the twist joint channel.
[0059] Among them, the related structure of the first V-shaped groove block 20 and the second V-shaped groove block 30 is as follows:
[0060] In the optional scheme of the embodiment, preferably, as shown in the figure, Figures 1-4 The upper opening edge of the first V-shaped groove and the second V-shaped groove is provided with a rounded corner. The rounded corner can effectively avoid the direct contact between the yarn and the sharp groove edge, so that the yarn can smoothly transition when entering the groove, greatly reducing the risk of yarn abrasion, ensuring the integrity of the yarn, and helping to improve the strength and appearance quality of the yarn after twisting.
[0061] Among them, the related structure of the first V-shaped groove block 20 and the second V-shaped groove block 30 is as follows:
[0062] Specifically, the first clamping device 40 and the second clamping device 50 have the same structure.
[0063] In the optional scheme of the embodiment, preferably, as shown in the figure, Figures 1-3 The first clamping device 40 includes a first yarn guide sheet 41 and a first yarn pressing claw 42; the second clamping device 50 includes a second yarn guide sheet 51 and a second yarn pressing claw 52; the first yarn guide sheet 41 is provided with a first yarn guide V-groove, the first yarn pressing claw 42 is located at the opening of the first yarn guide V-groove, and the first yarn pressing claw 42 and the first yarn guide V-groove together form a first clamping opening; the second yarn guide sheet 51 is provided with a second yarn guide V-groove, the second yarn pressing claw 52 is located at the opening of the second yarn guide V-groove, and the second yarn pressing claw 52 and the second yarn guide V-groove together form a second clamping opening; the first yarn pressing claw 42 is fixedly connected with a connecting shaft, and the second yarn pressing claw 52 is fixedly connected with the connecting shaft; the connecting shaft can drive the first yarn pressing claw 42 and the second yarn pressing claw 52 to rotate around the axis of the connecting shaft and correspondingly change the size of the first clamping opening and the second clamping opening. The structure of the V-groove and the yarn pressing claw can accurately position and clamp the yarn. The yarn pressing claw tightly clamps the yarn through cooperation with the V-groove, effectively avoiding displacement and slipping of the yarn during clamping, ensuring that the yarn is accurately positioned during twisting, improving the accuracy and quality of twisting; the size change of the two clamping openings is controlled by the same connecting shaft, so that the first clamping opening and the second clamping opening can maintain the same size change at any time, making the clamping force on the two yarns relatively uniform, avoiding the influence of the clamping force difference on the twisting quality, and ensuring the consistency of the twisting process and the quality of the twisted product.
[0064] Among them, the related structure of the first V-shaped groove block 20 and the second V-shaped groove block 30 is as follows:
[0065] In the optional scheme of the embodiment, preferably, as shown in the figure, Figures 1-3As shown, in the vertical direction, the height of the first V-shaped groove and the second V-shaped groove is consistent, and the height of the first clamping opening and the second clamping opening is consistent; the axis height of the first twisting channel 111 and the second twisting channel 112 is higher than the height of the first V-shaped groove, and the height of the first V-shaped groove is higher than the height of the first clamping opening. The first twisting channel 111, the first V-shaped groove and the first clamping opening are arranged in a certain height level respectively, which is beneficial to reasonably control the tension of the yarn, and after the yarn end is disconnected, the yarn end can be better limited by the corresponding first V-shaped groove and second V-shaped groove, the yarn shrinkage is reduced, and the twisting effect is improved.
[0066] In the optional scheme of the embodiment, preferably, as shown in the figure, Figures 1-4 As shown, the first V-shaped groove comprises symmetrically arranged first flat surface and second flat surface; the lower end of the first flat surface is connected with the lower end of the second flat surface; the first yarn guide V-shaped groove comprises symmetrically arranged first yarn guide arc surface and second yarn guide arc surface; the lower end of the first yarn guide arc surface is connected with the lower end of the second yarn guide arc surface. The first V-shaped groove is symmetrically arranged by the first flat surface and the second flat surface, so that the bottom V-shaped angle formed is more easy to form contact friction between the yarns; and the first yarn guide V-shaped groove is composed of the first yarn guide arc surface and the second yarn guide arc surface, which can not only guide the yarn well, but also avoid excessive extrusion of the yarn on both sides to cause wear of the yarn.
[0067] Specifically, the twisting device 10 is integrally assembled and fixed on the compressed gas outlet of the twisting base 60, and the compressed gas outlet is in communication with the air passage.
[0068] Specifically, when the yarn is introduced by the external mechanical hand, the yarn is introduced into the corresponding twisting channel through the yarn guide sheet, at this time, the presser gripper is pressed down to hold the yarn at the yarn guide sheet; the two yarn tail ends are cut by the two mechanical scissors, and are pulled back by the stretching device. For high-elasticity yarn, a larger shrinkage will occur along the axial direction of the yarn itself. At this time, if the V-shaped groove block is not set, the yarn end of the shrinkage is easy to escape from the control of the yarn guide sheet and the presser gripper, so that the yarn tail ends on both sides are separated from the overlapping, and finally an empty twist joint is formed.
[0069] The principle and implementation mode of the specific examples are described in the utility model, and the above embodiment is only used to help understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the utility model, the specific implementation mode and application range will be changed. In conclusion, the content of the specification should not be understood as the limitation of the utility model.
Claims
1. A stranding apparatus characterized by: The twisting device comprises a twisting device, a first V-shaped groove block, a second V-shaped groove block, a first clamping device and a second clamping device. The twisting device has a first twisting channel and a second twisting channel; the axis of the first twisting channel and the axis of the second twisting channel are located on the same horizontal plane, and the longitudinal section of the first twisting channel and the second twisting channel partially overlap; one end of the first twisting channel is in communication with one end of the second twisting channel. The first twisting channel has a rotating first rotational airflow, and the second twisting channel has a rotating second rotational airflow; the rotational direction of the first rotational airflow is opposite to that of the second rotational airflow. One end of the first twisting channel away from the second twisting channel is sequentially fixed with the first V-shaped groove block and the first clamping device; one end of the second twisting channel away from the first twisting channel is sequentially fixed with the second V-shaped groove block and the second clamping device. The first V-shaped groove block has a first V-shaped groove, and the second V-shaped groove block has a second V-shaped groove; the first clamping device has an openable and closable first clamping opening, and the second clamping device has an openable and closable second clamping opening. During twisting, the first yarn located in the first twisting channel is disconnected on the side of the second clamping device away from the second V-shaped groove block; the part of the first yarn close to the disconnected position can be located in the second twisting channel and the second V-shaped groove, and the position of the first yarn away from the disconnected position can be clamped by the first clamping opening. The second yarn located in the second twisting channel is disconnected on the side of the first clamping device away from the first V-shaped groove block; the part of the second yarn close to the disconnected position can be located in the first twisting channel and the first V-shaped groove, and the position of the second yarn away from the disconnected position can be clamped by the second clamping opening. The first rotational airflow can perform a twisting action on the second yarn located in the first twisting channel, and the twisting direction of the second yarn is the same as that of the first rotational airflow; the second rotational airflow can perform a twisting action on the first yarn located in the second twisting channel, and the twisting direction of the first yarn is the same as that of the second rotational airflow.
2. A twister as claimed in claim 1, characterized in that: In the vertical direction, the height of the first V-shaped groove is consistent with that of the second V-shaped groove, and the height of the first clamping opening is consistent with that of the second clamping opening. The height of the axis of the first twisting channel and the second twisting channel is higher than that of the first V-shaped groove, and the height of the first V-shaped groove is higher than that of the first clamping opening.
3. A twister as claimed in claim 1, wherein: The twisting device has an upper opening, which is located above the first twisting channel and the second twisting channel, and is in communication with the first twisting channel and the second twisting channel.
4. A twister as claimed in claim 3, wherein: The upper opening comprises an upper opening V-shaped groove and a vertical groove; the lower end of the upper opening V-shaped groove is in communication with the upper end of the vertical groove, and the lower end of the vertical groove is in communication with the first twisting channel and the second twisting channel.
5. The twister as claimed in claim 1, wherein: The twisting device has a first airflow cavity and a second airflow cavity; the communication structure of the first airflow cavity and the first twisting channel is the same as that of the second airflow cavity and the second twisting channel. The first twist joint passage inner wall is provided with a first gas flow hole and a second gas flow hole, the outlet gas flow directions of the first gas flow hole and the second gas flow hole are the same, the cross-sectional area of the first gas flow hole is smaller than that of the second gas flow hole, to form a relatively high flow speed drag gas flow layer and a relatively low flow speed push gas flow layer, the drag gas flow layer is located on the side of the push gas flow layer close to the second twist joint passage axis, and the drag gas flow layer and the push gas flow layer jointly form the first twist joint passage.
6. A twisting apparatus according to claim 5, wherein: The second gas flow hole is provided with a tapered flared end close to one end of the first gas flow cavity.
7. A twister as claimed in claim 1, wherein: The first clamp comprises a first yarn guide sheet and a first yarn pressing claw; the second clamp comprises a second yarn guide sheet and a second yarn pressing claw; The first yarn guide sheet is provided with a first yarn guide V-shaped groove, the first yarn pressing claw is located at the opening of the first yarn guide V-shaped groove, and the first yarn pressing claw and the first yarn guide V-shaped groove jointly form the first clamping opening; the second yarn guide sheet is provided with a second yarn guide V-shaped groove, the second yarn pressing claw is located at the opening of the second yarn guide V-shaped groove, and the second yarn pressing claw and the second yarn guide V-shaped groove jointly form the second clamping opening; The first yarn pressing claw is fixedly connected with a connecting shaft rod, and the second yarn pressing claw is fixedly connected with the connecting shaft rod; the connecting shaft rod can drive the first yarn pressing claw and the second yarn pressing claw to rotate around the axis of the connecting shaft rod and correspondingly change the size of the first clamping opening and the second clamping opening.
8. A twister as claimed in claim 1, wherein: The upper opening edges of the first V-shaped groove and the second V-shaped groove are chamfered.
9. A twister as claimed in claim 7 wherein: The first V-shaped groove comprises symmetrically arranged first and second flat surfaces; the lower end of the first flat surface is connected with the lower end of the second flat surface; The first yarn guide V-shaped groove comprises symmetrically arranged first and second yarn guide arc surfaces; the lower end of the first yarn guide arc surface is connected with the lower end of the second yarn guide arc surface.
10. A twisting apparatus as claimed in claim 5, wherein: The twist joint device comprises a twist joint block and a twist joint base; The twist joint block is provided with the first twist joint passage and the second twist joint passage; the two opposite side walls of the twist joint block are respectively provided with first and second gas passage grooves; The twist joint base has a U-shaped mounting groove, and the bottom of the U-shaped mounting groove is provided with an air passage; The twist joint block is fixedly arranged in the U-shaped mounting groove; the first and second gas passage grooves jointly form the first and second gas flow cavities with the corresponding side walls of the twist joint base; The first and second gas flow cavities have the same shape, and the first and second gas flow cavities are in communication with the air passage.