A yarn guide device with broken yarn hot melt splicing function

Abstract

The utility model discloses a kind of fibre braided belt yarn guide devices with broken yarn hot melt winding function, belong to yarn winding technology field, the scheme is additionally provided with clamping mechanism and hot melt yarn winding mechanism on the basis of existing yarn conveying device, clamping mechanism includes guide unit and cantilever, one end of cantilever is equipped with clamp shear unit I, other end is movably connected with guide unit, the clamping mechanism is used to clamp and move broken yarn head to yarn area, hot melt yarn winding mechanism includes hot melt yarn adsorption unit, yarn winding unit and hot melt yarn guide unit, mainly used to wrap hot melt yarn in the position of broken yarn head that moves to yarn area, and using ultrasonic technology to continue connection;Compared with the prior art, the scheme is wound with hot melt yarn at broken yarn head again using ultrasonic technology winding, can significantly improve broken yarn head winding strength, uniformity and aesthetic degree, and then improve the quality of hot melt nature belt yarn, in addition, the scheme can be implemented in machine winding, and winding effect is good.

Description

Technical Field

[0001] This utility model belongs to the field of yarn splicing technology, and particularly relates to a fiber braided tape yarn guiding device with broken yarn hot melt splicing function. Background Technology

[0002] In recent years, ribbon yarn woven from small needle tubes has gradually become a new type of fancy yarn, evolving into core-spun ribbon yarn, slub ribbon yarn, spiral ribbon yarn, sprayed ribbon yarn, eyelash ribbon yarn, etc. Ribbon yarn has advantages such as being lightweight and fluffy, having a good hand feel, clear fabric texture, good drape, short production process, and low cost.

[0003] A ribbon with a spiral structure formed by continuously connected coils in the form of a net chain is also called ribbon yarn. Ribbon yarn has a higher strength than Siro yarn and double-ply yarn, and its net structure makes the yarn appear more fluffy. Therefore, the ultra-fine ribbon yarn woven by the ribbon yarn weaver has a unique yarn structure and can be used to design novel high-end fabrics.

[0004] With the advancement of science and technology, people's requirements for yarn performance have also increased. The quality of yarn splices directly affects the appearance and dimensional continuity of yarn. Traditional splicing techniques can no longer meet the requirements for yarn knotting quality. Using ultrasonic hot-melt machines to connect yarns is currently the mainstream method for splicing hot-melt yarns. However, directly using ultrasonic welding, fusion welding or soldering on yarns will produce significant defects at the joint, damaging the original structure or style characteristics of the yarn, easily generating defects, and having a significant impact on the quality of the ribbon yarn.

[0005] Based on the above analysis, this solution improves the existing yarn splicing device and designs a fiber braided ribbon yarn guiding device with broken yarn heat-melting splicing function to reduce yarn interface defects and thus improve the quality of heat-melting ribbon yarn. Utility Model Content

[0006] The purpose of this invention is to provide a fiber braided ribbon yarn guiding device with a broken yarn hot melt winding function. This device improves the yarn broken end winding strength, uniformity and aesthetics by wrapping auxiliary hot melt wire around the yarn broken end and then performing ultrasonic winding, thereby improving the quality of the hot melt ribbon yarn.

[0007] To address the aforementioned problems, this solution provides a fiber braided ribbon yarn guiding device with a broken yarn hot-melt winding function, including a yarn guiding mechanism and a yarn splicing mechanism, and further comprising a clamping mechanism and a hot-melt yarn winding mechanism, wherein...

[0008] The clamping mechanism is located on one side of the yarn path. The clamping mechanism includes a guide unit and a cantilever. The guide unit is arranged along the yarn path direction. The cantilever is arranged perpendicular to the yarn path direction. One end of the cantilever is provided with a clamping and cutting unit I for clamping the yarn. The other end is connected to the guide unit and can move up and down relative to the guide unit to clamp the broken yarn to the yarn splicing area.

[0009] A hot melt wire winding mechanism is located on the opposite side of the yarn receiving mechanism. It includes a hot melt wire adsorption unit, a winding unit, and a hot melt wire guiding unit. The hot melt wire adsorption unit can use negative pressure to adsorb the hot melt wire located at the end of the hot melt wire guiding unit to the winding unit. The winding unit is disposed between the hot melt wire adsorption unit and the hot melt wire guiding unit, and its bottom is provided with a sliding base. The winding unit can move relative to the sliding base to the yarn receiving area and spirally wind the hot melt wire around the outer periphery of the broken yarn.

[0010] As a preferred embodiment of this application: the clamping mechanism comprises at least two sets, and the guiding unit corresponding to each set of clamping mechanisms comprises a support base, a lead screw, and a guide rail. The support base is provided with a drive motor for driving the lead screw to rotate. Meanwhile, the lead screw and the guide rail are arranged side by side. The cantilever is connected to the lead screw and the guide rail respectively through a connecting seat. The cantilever corresponding to the two sets of clamping mechanisms can move towards each other and thus drive the two ends of the broken yarn to contact in the yarn receiving area through the clamping and shearing unit I.

[0011] As a preferred embodiment of this application: the clamping and cutting unit I includes a first clamping part and a second clamping part, which are hinged together in the middle to form a "scissor" shape. The first clamping part has a toothed groove on the inner side of its end for clamping yarn, and the second clamping part has a cutter head on the inner side of its end corresponding to the position of the toothed groove. The end is provided with a driving component, which drives the second clamping part to swing relative to the first clamping part, thereby driving the cutter head to engage in the toothed groove to achieve yarn cutting.

[0012] As a preferred embodiment of this application: the drive assembly includes a belt gear and a drive gear, which mesh with each other. The belt gear is disposed at the end of the second clamping part, and the drive gear is connected to the feed motor.

[0013] As a preferred embodiment of this application: the yarn winding unit consists of a yarn carrying assembly and a driving assembly. The yarn carrying assembly includes three connecting shafts and a roller seat. The three connecting shafts are arranged in a triangular shape. The roller seat is located at both ends of the three connecting shafts. The roller seat is provided with a steering wheel connected to the three connecting shafts and a winding wheel located at the center of the roller seat. The winding wheel and the steering wheel rotate synchronously through a transmission belt to form a winding structure. The winding wheel is provided with a yarn avoidance area and a hot melt wire clamping area. The hot melt wire clamping area can rotate relative to the yarn avoidance area. The driving assembly is used to drive the winding structures at both ends of the yarn carrying assembly to rotate in opposite directions to form a spiral winding path.

[0014] As a preferred embodiment of this application: the drive assembly is disposed on one side of the yarn carrying assembly, and includes two connecting rods. One end of each of the two connecting rods is provided with a drive wheel connected to the steering wheel via a transmission belt, and the other end is connected to the output of the bevel gear set. The bevel gear set can drive the two connecting rods to rotate in opposite directions, thereby driving the winding structures at both ends of the yarn carrying assembly to rotate in opposite directions.

[0015] As a preferred embodiment of this application: the hot melt wire guiding unit includes an L-shaped yarn guide tube and a yarn guide tube guide frame. The L-shaped yarn guide tube is located directly below the hot melt wire clamping area after the yarn winding unit is reset. The L-shaped yarn guide tube contains hot melt wire from the hot melt wire cylinder. The yarn guide tube guide frame is connected to the L-shaped yarn guide tube and includes a guide rail and a cantilever plate. The guide rail is vertically arranged, and the cantilever plate is disposed between the L-shaped yarn guide tube and the guide rail. It can move up and down relative to the guide rail, thereby driving the L-shaped yarn guide tube to feed the hot melt wire into the hot melt wire clamping area.

[0016] As a preferred embodiment of this application: the hot melt wire adsorption unit is disposed directly above the hot melt wire clamping area after the yarn winding unit is reset, and the hot melt wire adsorption unit includes a suction nozzle and a negative pressure mechanism.

[0017] As a preferred embodiment of this application: the sliding base includes a base and a sliding plate, the base is provided with a limiting rail and a threaded rod arranged side by side along the extended length direction, and a feed motor connected to the threaded rod is provided at the end of the base; the bottom of the sliding plate is provided with a slider and a traveling wheel respectively adapted to the threaded rod and the limiting rail.

[0018] As a preferred embodiment of this application: the yarn guiding mechanism includes an upper yarn guiding unit and a lower yarn guiding unit, and a tensioner is provided on the upper yarn guiding unit and / or the lower yarn guiding unit to sense changes in yarn tension.

[0019] The advantages of this application are:

[0020] This solution adds a clamping mechanism and a hot melt yarn winding mechanism to the existing yarn conveying device. The clamping mechanism includes a guide unit and a cantilever. One end of the cantilever is equipped with a clamping and cutting unit I, and the other end is movably connected to the guide unit. This clamping mechanism is used to clamp and move the broken yarn end to the yarn splicing area. The hot melt yarn winding mechanism includes a hot melt yarn adsorption unit, a winding unit, and a hot melt yarn guide unit. It is mainly used to wind hot melt yarn at the broken yarn end position in the yarn splicing area, and then use an existing ultrasonic hot melt machine to splice the broken yarn end. Compared with the existing method of directly applying ultrasonic technology to the broken yarn end, this solution, by winding hot melt yarn at the broken yarn end and then using ultrasonic technology for splicing, can significantly improve the splicing strength, uniformity, and aesthetics of the broken yarn end, thereby improving the quality of the hot melt ribbon yarn. In addition, this solution can achieve on-machine splicing with good splicing effect. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the fiber braided ribbon yarn guiding device with broken yarn heat-melting and splicing function provided by this utility model.

[0022] Figure 2 This is a schematic diagram of the overall structure of the yarn winding unit provided by this utility model.

[0023] Figure 3 This is a schematic diagram of the overall structure of the roller seat provided by this utility model.

[0024] Figure 4 This is a diagram showing the positional relationship between the winding wheel, the steering wheel, the transmission belt, and the drive gear provided by this utility model.

[0025] Figure 5 This is a structural schematic diagram of the sliding base and supporting slide provided by this utility model.

[0026] Figure 6 This is a schematic diagram of the overall structure of the guidance unit provided by this utility model.

[0027] Figure 7 This is a schematic diagram of the overall structure of the clamping and shearing unit provided by this utility model.

[0028] Figure 8 This utility model provides Figure 7 A magnified view of a portion of point A in the middle.

[0029] Figure 9a This is a schematic diagram of the structure provided by this utility model for holding the broken yarn end with a cantilever.

[0030] Figure 9b This is a schematic diagram of the structure of the clamping and cutting unit I provided by this utility model after cutting off the excess yarn at the yarn end.

[0031] Figure 9cThis is a schematic diagram of the structure provided by this utility model, which shows how a cantilever can move the broken yarn end to the yarn receiving area.

[0032] Figure 9d This is a schematic diagram of the structure of the yarn winding unit provided by this utility model, which moves to the yarn receiving area.

[0033] Figure 9e This is a schematic diagram of the structure of the yarn winding unit provided by this utility model, in which hot melt wire is wound around the broken yarn end in the yarn splicing area.

[0034] Figure 9f This is a schematic diagram of the structure after the hot melt wire winding provided by this utility model is completed.

[0035] Figure 9g This is a schematic diagram of the structure of the ultrasonic hot melt machine provided by this utility model, which moves to the yarn splicing area to reconnect broken yarn and hot melt wire.

[0036] Figure Labels

[0037] 1-Winding assembly, 2-Front support bracket, 3-Front unpowered yarn guide roller II, 4-Yarn guide hook II, 5-Lower yarn tensioner III, 6-Servo motor II, 7-Yarn guide roller, 8-Unpowered pressure roller, 9-Hook, 10-Lower yarn tensioner II, 11-Yarn, 13-Outer support plate, 14-Support slide, 15-Ultrasonic heat melter, 16-Yarn guide hook I, 17-Upper yarn tensioner I, 18-Front unpowered yarn guide roller I, 19-Guiding unit 191-Support base, 192-Screw rod, 193-Guide rail, 194-Drive motor, 195-Connecting seat, 20-Cantilever, 201-Clamping and shearing unit I, 2011-First clamping part, 2012-Second clamping part, 2013-Hinge shaft, 2013-Toothed groove, 2014-Cutter head, 2015-With gear, 2016-Drive gear, 21-Guide support frame, 22-Upper crossbeam, 23-Belt yarn bobbin, 24-Middle Support plate I, 25-Connecting shaft, 26-Suction nozzle, 27-Suction nozzle fixing rod, 28-Air supply pipe, 29-Sliding base, 30-Bevel gear set, 31-Servo motor I, 32-Middle support plate II, 33-L-shaped yarn guide tube, 34-Yarn guide tube guide frame, 35-Hot melt yarn cylinder, 36-Middle support plate III, 37-Cylinder, 38-Base plate, 39-Broken yarn end II, 40-Hot melt yarn, 41-Broken yarn end I, 42-Steering wheel III, 43- 431-Yarn avoidance zone, 432-Hot melt wire clamping zone, 44-Transmission belt, 46-Steering wheel II, 47-Drive gear I, 48-Steering wheel I, 49-Connecting rod I, 50-Connecting rod II, 51-Drive gear II, 52-Roller seat, 53-Clamping and shearing unit II, 54-Base, 55-Slide plate, 56-Threaded rod, 57-Limiting rail, 58-Slider, 59-Traveling wheel, 60-Linkage frame; 61-Feed motor. Detailed Implementation

[0038] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be emphasized that the following description is merely exemplary and not intended to limit the scope and application of the present invention.

[0039] This embodiment provides a fiber braided tape yarn guiding device with a hot-melt winding function for broken yarns. The device includes a yarn guiding mechanism, a yarn splicing mechanism, a clamping mechanism, and a hot-melt yarn winding mechanism. It is understood that the aforementioned yarn guiding mechanism, yarn splicing mechanism, clamping mechanism, and hot-melt yarn winding mechanism should all be fixed to the frame. In this embodiment, the frame preferably includes a front support bracket 2, an outer support plate 13, an upper crossbeam 22, a middle support plate I 24, a middle support plate II 32, a middle support plate III 36, and a base plate 38, etc., which are integrated by bolt assemblies or winding to provide support. Figure 1 As shown.

[0040] In this embodiment, the specific structure and function of the yarn guiding mechanism, yarn receiving mechanism, clamping mechanism, and hot melt yarn winding mechanism include: the yarn guiding mechanism consists of an upper yarn guiding unit and a lower yarn guiding unit, and a tensioner is provided on the upper yarn guiding unit and / or the lower yarn guiding unit to sense the tension change of the yarn 11. In this embodiment, it is preferable to provide tensioners in both the upper and lower yarn guiding units. Specifically, the upper yarn guiding unit consists of a yarn guide hook I16, an upper yarn tensioner I17, and a front unpowered yarn guide roller I18. In this embodiment, the yarn 11 is preferably a hot melt ribbon yarn that passes through the front unpowered yarn guide roller I18 and the upper yarn tensioner I17. The upper yarn tensioner I17 identifies yarn defects and adjusts the tension, and the yarn passes through the yarn guide hook I16. 6. Downward transmission; The lower yarn guide unit consists of a winding assembly 1, a front unpowered yarn guide roller II 3, a yarn guide hook II 4, a lower yarn tensioner III 5, a yarn guide roller 7, an unpowered pressure roller 8, and a lower yarn tensioner II 10. The ribbon yarn 11 passes through the lower yarn tensioner II 10, is held by the unpowered pressure roller 8 and the yarn guide roller 7, and then passes through the lower yarn tensioner III 5, the yarn guide hook II 4, and the front unpowered yarn guide roller II 3 to the winding assembly 1, where it is wound into a cylinder. The unpowered pressure roller 8 is installed in the groove of the hook 9. The unpowered pressure roller 8 presses the heat-melting ribbon yarn (or yarn 11) onto the yarn guide roller 7 by its own gravity. The servo motor II 6 drives the yarn guide roller 7 to rotate, pulling the heat-melting ribbon yarn downward for output.

[0041] The yarn splicing mechanism is mainly an ultrasonic heat melter 15, which is fixed on the support slide 14. The ultrasonic heat melter 15 can reciprocate back and forth relative to the support slide 14, thereby enabling the ultrasonic heat melter 15 to enter or exit the yarn splicing area. In this embodiment, the support slide 14 is an existing structure of the existing conveying device, so it will not be described in detail here.

[0042] The clamping mechanism is located on one side of the yarn path and is fixed between the front support 2 and the upper crossbar 22 of the frame via (upper and lower) guide support frame 21. This clamping mechanism includes a guide unit 19 and a cantilever 20. The guide unit 19 is arranged along the yarn path direction, and the cantilever 20 is perpendicular to the yarn path direction. One end of the cantilever 20 is equipped with a clamping and cutting unit I 201 for clamping the yarn 11, and the other end is connected to the guide unit 19 and can reciprocate up and down relative to the guide unit 19 to clamp the broken yarn to the yarn splicing area. In this embodiment, since yarn breakage often occurs in the yarn feeding section, it is preferable to set the clamping mechanism 17 in the yarn feeding section. After the yarn breakage occurs, the guide unit 19 can drive the cantilever 20 to move up and down and use the clamping and cutting unit I 201 to clamp the two broken yarn ends and move them to the yarn receiving area. It can be understood that the yarn 11 passes through the clamping and cutting unit I 201 during the transmission process, or the broken yarn is manually put into the clamping and cutting unit I 201 after the yarn breaks. The specific choice can be made according to actual needs. In this embodiment, the former is preferred.

[0043] As a preferred embodiment, the clamping mechanism includes at least two sets, which are arranged opposite to each other. Each set of clamping mechanisms corresponds to a guide unit 19, which includes a support base 191, a lead screw 192, and a guide rail 193. The support bases 191 of the two sets of clamping mechanisms are respectively fixed on the upper and lower guide support frames 21. Each support base 191 is equipped with a drive motor 194 that drives the lead screw 192 to rotate. The lead screw 192 and the guide rail 193 are arranged side-by-side. The cantilever 20 is connected to the lead screw 192 and the guide rail 193 respectively via a connecting seat 195. The guide rail 192 is used to limit the movement of the cantilever 20, ensuring stable movement of the cantilever 20. The cantilever arms 20 corresponding to the clamping mechanism can move synchronously towards each other, thereby driving the two ends of the broken yarn to contact in the yarn splicing area through the clamping and cutting unit I201. In this embodiment, it is preferable that the distance between the cantilever arms corresponding to the two sets of clamping mechanisms is the largest in the initial stage, and the yarn 11 passes through the clamping and cutting unit I201 corresponding to the two sets of cantilever arms 20. When the yarn breaks, if the break point is located between the two cantilever arms 20, it is only necessary to move the two sets of cantilever arms 20 to pull the two broken yarn ends to contact in the yarn splicing area. If the break point is located outside the two cantilever arms, the broken yarn ends can be manually assisted to be connected to the clamping and cutting unit I201, and then the two sets of cantilever arms 20 can be moved to pull the two broken yarn ends to contact in the yarn splicing area.

[0044] like Figure 7-8The diagram shown is a front view of the clamping and shearing unit provided in this embodiment. As the name suggests, the clamping and shearing unit should have the dual functions of clamping and shearing. In this embodiment, the clamping and shearing unit I 201 includes a first clamping part 2011 and a second clamping part 2012. The middle parts of the first clamping part 2011 and the second clamping part 2012 are hinged together by a hinge shaft 2013 to form a "scissor" shape. The inner side of the end of the first clamping part 2011 has toothed grooves 2013 arranged at equal intervals for clamping the yarn 11. The inner side of the end of the second clamping part 2012 is provided with a cutter head 2014 corresponding to the position of the toothed groove 2013. The end is provided with... There is a drive assembly that drives the second clamping part 2012 to swing relative to the first clamping part 2011, thereby causing the cutter head 2014 to engage in the toothed groove 2013 to cut the yarn 11. Specifically, in the initial position, the clamping and cutting unit I 201 is in the open position, that is, the cutter head 2014 is not engaged in the toothed groove 2013. At this time, the yarn 11 runs through the toothed groove 2013 in the yarn path. When the yarn breaks and it is ensured that the broken yarn end is in the toothed groove 2013, the drive assembly can drive the cutter head 2014 to swing and engage in the toothed groove 2013 to cut off the excess yarn, which is a pre-processing for subsequent yarn breakage splicing.

[0045] In this embodiment, the drive assembly includes a belt gear 2015 and a drive gear 2016, which mesh with each other. The belt gear 2015 is located at the end of the second clamping part 2012, and the drive gear 2016 is connected to a motor (not shown in the figure). The drive assembly can drive the second clamping part 2012 to swing. In this embodiment, the motor can be a micro motor.

[0046] The hot melt wire winding mechanism is located on the opposite side of the yarn receiving mechanism. It includes a hot melt wire guiding unit, a winding unit, and a hot melt wire adsorption unit arranged sequentially in the same direction as the yarn path. The hot melt wire adsorption unit can use negative pressure to adsorb the hot melt wire 40 located at the end of the hot melt wire guiding unit to the winding unit, ensuring that the winding unit carries the hot melt wire 40. The winding unit is located between the hot melt wire adsorption unit and the hot melt wire guiding unit, and its bottom is provided with a sliding base 29. The winding unit can move relative to the sliding base 29 to the yarn receiving area and spirally wind the hot melt wire 40 around the outer periphery of the broken yarn. That is, the winding unit can move back and forth relative to the sliding base 29, thereby entering and moving away from the yarn receiving area.

[0047] like Figure 2The diagram shows a schematic of the yarn winding unit structure provided in this embodiment. The yarn winding unit is fixed on the central support plate II32 and includes a yarn carrying assembly and a sliding base. The yarn carrying assembly includes three connecting shafts 25 and a roller seat 52. The length of the three connecting shafts 25 is sufficient to wrap the broken end of the yarn with the carried hot melt wire. The three connecting shafts 25 are arranged in a triangular shape, meaning there is a gap between adjacent connecting shafts 25. The roller seat 52 is located at both ends of the three connecting shafts 25. The roller seat 52 has steering wheels (steering wheels I48, II46, and III42) connected to the three connecting shafts 25 and a winding wheel 43 located at the center of the roller seat 52. The winding wheel 43 is located at the center of the three connecting shafts 25, and the winding wheel 43 rotates synchronously with the steering wheels via a transmission belt 44, forming a winding structure. Specifically, as shown... Figure 3-4 As shown in the figure, the steering wheel I48, steering wheel II46, steering wheel III42, and winding wheel 43 form a "V"-shaped winding structure via the transmission belt 44. When the transmission belt 44 rotates, it can drive the steering wheel I48, steering wheel II46, steering wheel III42, and winding wheel 43 to rotate synchronously. The winding wheel 43 is provided with a yarn avoidance area 431 and a hot melt wire clamping area 432. The yarn avoidance area 431 is used to accommodate the yarn 11 in the winding wheel 43 and the winding wheel 43. The steering wheel passes through the "V"-shaped winding structure formed by the transmission belt 44, ensuring that the yarn 11 does not rotate with the winding structure. The hot melt wire clamping area 432 is used to clamp the hot melt wire 40. The hot melt wire clamping area 432 can rotate with the winding structure, that is, the hot melt wire clamping area 432 can rotate relative to the yarn avoidance area 431, thereby realizing the hot melt wire 40 is wound around the outer periphery of the yarn. The drive component is used to drive the winding structures at both ends of the yarn carrying component to rotate in the opposite direction to form a spiral winding path.

[0048] In this embodiment, the yarn avoidance area 431 is a groove arranged along the length of the yarn wheel 43. Broken yarn located in the yarn receiving area can enter the groove. The hot melt wire clamping area 432 is a limiting hole that passes through the length of the yarn wheel. When the yarn wheel 43 rotates, it can drive the hot melt wire 40 located in the limiting hole to rotate around the groove as the center, thereby spirally winding the hot melt wire around the outer periphery of the broken yarn.

[0049] In a preferred embodiment, the drive assembly is located on one side of the yarn-carrying assembly and includes two connecting rods. One end of each connecting rod is connected to a drive wheel via a transmission belt and the other end is connected to the output of a bevel gear set. The bevel gear set can drive the two connecting rods to rotate in opposite directions, thereby causing the winding structures at both ends of the yarn-carrying assembly to rotate in opposite directions. Specifically, the connecting rods include connecting rod I49 and connecting rod II50. One end of connecting rod I49 and connecting rod II50 is connected to drive gear I47 and drive gear II51, respectively, and the other end is connected to the output of the bevel gear set 30. The end connection is understandable. The bevel gear set 30 is connected to the servo motor I 31. Through the bevel gear set 30, the torque of the servo motor I 31 can be transmitted to the connecting rod I 49 and the connecting rod II 50, and the connecting rod I 49 and the connecting rod II 50 are ensured to rotate in opposite directions. Then, the corresponding drive gear I 47 and drive gear II 51 are driven to rotate through the connecting rod I 49 and the connecting rod II 50. When the drive gear I 47 and the drive gear II 51 rotate, they can drive the transmission belt 44 wrapped around the outside of the winding wheel 43 and the steering wheel to rotate, thereby driving the winding structure at both ends of the three connecting shafts 25 to rotate in opposite directions.

[0050] As a preferred embodiment, the specific structure of the sliding base 29 that drives the yarn winding unit to move left and right is as follows: Figure 5 As shown, it includes a base 54 and a slide plate 55. The base 54 is provided with a limiting rail 57 in the extended length direction and a threaded rod 56 connected to the end of a feed motor 61. The bottom of the slide plate 55 is provided with a slider 58 and a traveling wheel 59 that are respectively adapted to the threaded rod 56 and the limiting rail 57. The yarn winding unit is directly or indirectly fixed on the slide plate 55, and when the feed motor 61 drives the threaded rod 56 to rotate, it drives the slide plate 55 to drive the yarn winding unit to move back and forth.

[0051] In a preferred embodiment, the hot melt wire guiding unit includes an L-shaped yarn guide tube 33 and a yarn guide tube guide frame 29. The L-shaped yarn guide tube 33 is located directly below the hot melt wire clamping area 432 after the yarn winding unit is reset. The L-shaped yarn guide tube 33 contains a hot melt wire 40 from the hot melt wire cylinder 35. The yarn guide tube guide frame 34 is connected to the L-shaped yarn guide tube 33 and includes a guide rail and a cantilever plate. The guide rail is vertically arranged, and the cantilever plate is located between the L-shaped yarn guide tube 33 and the guide rail. It can move up and down relative to the guide rail to drive the L-shaped yarn guide tube to feed the hot melt wire 40 into the hot melt wire clamping area 432. In this preferred embodiment, the structure of the yarn guide tube guide frame 29 is the same as the structure and operating principle of the guiding unit 19, that is, the guide rail includes a support base 191, a lead screw 192, and a guide rail. 193. The lead screw 192 and guide rail 193 are arranged side by side on the support base 191. The cantilever plate, i.e., the cantilever 20, is slidably connected to the guide rail through the connecting seat 195. In actual use, when the lead screw 192 is rotated by the drive motor 194, the cantilever plate will move up and down relative to the lead screw 192. Since the end of the cantilever plate is connected to the L-shaped yarn guide tube 33, it will drive the L-shaped yarn guide tube 33 to move up and down. Specifically, the forward rotation of the lead screw 192 drives the L-shaped yarn guide tube 33 to move upward, thereby driving the hot melt wire 40 into the hot melt wire clamping area 432 of the winding unit. Then, the hot melt wire adsorption unit is activated to adsorb the hot melt wire 40. Finally, the lead screw 192 is driven to reverse and drive the L-shaped yarn guide tube 33 to move downward and exit the hot melt wire clamping area 432, thus completing the hot melt wire 40 conveying process.

[0052] In this embodiment, after the hot melt wire 40 is conveyed, excess hot melt wire 40 can be manually cut off, or an automatic cutting mechanism can be used to ensure that the independent hot melt wire 40 carried by the yarn winding unit moves to the yarn receiving area. In this embodiment, a clamping and cutting unit II 53 is preferably provided at the end of the hot melt wire clamping area 432. The structure and principle of the clamping and cutting unit II 53 are preferably exactly the same as those of the clamping and cutting unit I 201. Therefore, this embodiment again omits a detailed description of its structure and operating principle. In addition, it is understood that the size of the toothed groove 2013 provided inside the first clamping part 2011 of the clamping and cutting unit II 53 should be adapted to the diameter of the hot melt wire 40 to ensure that the hot melt wire 40 can be clamped and fixed. Specifically, after the hot melt wire 40 enters the hot melt wire limiting area 432, the hot melt wire can be manually clamped into the toothed groove 2013.

[0053] As a preferred embodiment, the hot melt wire adsorption unit is located directly above the hot melt wire clamping area 432 after the yarn winding unit is reset. The hot melt wire adsorption unit includes a suction nozzle 26 and a negative pressure mechanism. The suction nozzle 26 is fixed below the middle support plate I24 by a suction nozzle fixing rod 27. The negative pressure mechanism includes a cylinder 37 and an air supply pipe 28. The cylinder 37 is fixed on the base plate 38.

[0054] This embodiment is combined with the appendix Figures 9a-9gThe specific operating principle of this embodiment will be explained as follows:

[0055] (1) On the yarn conveyor, the upper yarn tensioner I17, lower yarn tensioner III5, and lower yarn tensioner II10 of the upper and lower yarn paths sense the yarn tension and determine whether the yarn is broken. When the yarn tension decreases, the tension sensor is activated, and the control unit drives the yarn drawing unit and the winding unit to stop rotating. At this time, if Figure 9a As shown, the cantilever 20 clamps the broken yarn end through the clamping and shearing unit I201;

[0056] (2) Start the feed motor to drive the second clamping part 2012 of the clamping and cutting unit I201 to cut off the excess wire ends, such as Figure 9b As shown, simultaneously, the start drive motor 194 drives the cantilever 20 to move via the lead screw 192, thereby pulling the broken yarn ends (broken yarn end I 41 and broken yarn end II 39) to the yarn receiving area, as shown. Figure 9c ;

[0057] (3) Start the feed motor 61 to drive the yarn winding unit to the yarn receiving area and spirally wind an auxiliary hot melt wire around the broken yarn (assuming the yarn winding unit carries a hot melt wire). Figure 9d-9f When winding the hot melt wire, the servo motor I31 is started, and the torque of the servo motor I31 is output to the connecting rod I49 and connecting rod II50 through the bevel gear set, so that the connecting rod I49 and connecting rod II50 rotate in opposite directions, thereby driving the winding structure at both ends of the three connecting shafts 25 to rotate in opposite directions to realize the spiral winding of the hot melt wire 40 at the yarn break end.

[0058] (4) After the yarn splicing is completed, the yarn splicing unit and clamping mechanism are reset. At the same time, the ultrasonic hot melt machine 15 is started and moved to the yarn splicing area to splice the broken yarn. Figure 9g As shown, the ultrasonic hot melt machine 15 is reset after the winding is completed.

[0059] (5) Start the yarn guide tube guide frame to drive the L-shaped yarn guide tube 33 to move upward and pass through the hot melt wire clamping area 432 of the yarn winding unit to the hot melt wire adsorption unit side. Start the hot melt wire adsorption unit and pick up the hot melt wire 40 through the suction nozzle 27. The picked-up hot melt wire 40 is clamped by the clamping and cutting unit I201. The L-shaped yarn guide tube 33 is reset. Finally, start the clamping and cutting units I201 at both ends of the yarn winding unit to cut off the excess auxiliary hot melt wire for the next use.

[0060] (6) The yarn drawing unit and the winding unit are started and resumed operation.

[0061] In summary, compared with existing methods that use ultrasonic technology to directly apply ultrasonic waves to the broken yarn ends, this embodiment, by wrapping hot melt wire around the broken yarn ends and then using ultrasonic technology to reconnect them, can significantly improve the reconnection strength, uniformity, and aesthetics of the broken yarn ends, thereby improving the quality of the hot melt ribbon yarn. In addition, this embodiment can achieve in-machine reconnection and reconnection, significantly improving the efficiency and effectiveness of the conveying device.

[0062] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various improvements without departing from this utility model, and these improvements should also be considered within the scope of protection of this utility model. These improvements will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of the claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A fiber braided ribbon yarn guiding device with yarn breakage heat-melting splicing function, comprising a yarn guiding mechanism and a yarn splicing mechanism, characterized in that: It also includes a clamping mechanism and a hot melt wire winding mechanism, among which, The clamping mechanism is located on one side of the yarn path. The clamping mechanism includes a guide unit and a cantilever. The guide unit is arranged along the yarn path direction. The cantilever is arranged perpendicular to the yarn path direction. One end of the cantilever is provided with a clamping and cutting unit I for clamping the yarn. The other end is connected to the guide unit and can move up and down relative to the guide unit to clamp the broken yarn to the yarn splicing area. A hot melt wire winding mechanism is located on the opposite side of the yarn receiving mechanism. It includes a hot melt wire adsorption unit, a winding unit, and a hot melt wire guiding unit. The hot melt wire adsorption unit can use negative pressure to adsorb the hot melt wire located at the end of the hot melt wire guiding unit to the winding unit. The winding unit is disposed between the hot melt wire adsorption unit and the hot melt wire guiding unit, and its bottom is provided with a sliding base. The winding unit can move relative to the sliding base to the yarn receiving area and spirally wind the hot melt wire around the outer periphery of the broken yarn.

2. The fiber braided tape yarn guiding device with yarn breakage heat-melting splicing function according to claim 1, characterized in that: The clamping mechanism comprises at least two sets, and the guiding unit corresponding to each set of clamping mechanisms includes a support base, a lead screw, and a guide rail. The support base is equipped with a drive motor that drives the lead screw to rotate. Meanwhile, the lead screw and the guide rail are arranged side by side. The cantilever is connected to the lead screw and the guide rail respectively through a connecting seat. The cantilever corresponding to the two sets of clamping mechanisms can move towards each other and thus drive the two ends of the broken yarn to contact in the yarn receiving area through the clamping and shearing unit I.

3. The fiber braided ribbon yarn guiding device with yarn breakage heat-melting splicing function according to claim 1, characterized in that: The clamping and cutting unit I includes a first clamping part and a second clamping part, which are hinged together in the middle to form a "scissor" shape. The first clamping part has a toothed groove on the inner side of its end for clamping yarn, and the second clamping part has a cutter head on the inner side of its end corresponding to the position of the toothed groove. The end is provided with a driving component, which drives the second clamping part to swing relative to the first clamping part, thereby driving the cutter head to engage in the toothed groove to achieve yarn cutting.

4. The fiber braided ribbon yarn guiding device with yarn breakage heat-melting splicing function according to claim 3, characterized in that: The drive assembly includes a belt gear and a drive gear that mesh with each other. The belt gear is located at the end of the second clamping part, and the drive gear is connected to the feed motor.

5. The fiber braided tape yarn guiding device with yarn breakage heat-melting splicing function according to claim 1, characterized in that: The yarn winding unit consists of a yarn carrying assembly and a driving assembly. The yarn carrying assembly includes three connecting shafts and a roller seat. The three connecting shafts are arranged in a triangular shape. The roller seat is located at both ends of the three connecting shafts. The roller seat is provided with a steering wheel connected to the three connecting shafts and a winding wheel located at the center of the roller seat. The winding wheel and the steering wheel rotate synchronously through a transmission belt to form a winding structure. The winding wheel is provided with a yarn avoidance area and a hot melt wire clamping area. The hot melt wire clamping area can rotate relative to the yarn avoidance area. The driving assembly is used to drive the winding structures at both ends of the yarn carrying assembly to rotate in opposite directions to form a spiral winding path.

6. The fiber braided tape yarn guiding device with broken yarn hot-melt splicing function according to claim 5, characterized in that: The drive assembly is located on one side of the yarn carrying assembly and includes two connecting rods. One end of each connecting rod is provided with a drive wheel that is connected to the steering wheel via a transmission belt, and the other end is connected to the output of a bevel gear set. The bevel gear set can drive the two connecting rods to rotate in opposite directions, thereby driving the winding structures at both ends of the yarn carrying assembly to rotate in opposite directions.

7. The fiber braided ribbon yarn guiding device with yarn breakage heat-melting splicing function according to claim 5, characterized in that: The hot melt wire guiding unit includes an L-shaped yarn guide tube and a yarn guide tube guide frame. The L-shaped yarn guide tube is located directly below the hot melt wire clamping area after the yarn winding unit is reset. The L-shaped yarn guide tube contains hot melt wire from the hot melt wire cylinder. The yarn guide tube guide frame is connected to the L-shaped yarn guide tube and includes a guide rail and a cantilever plate. The guide rail is vertically arranged, and the cantilever plate is located between the L-shaped yarn guide tube and the guide rail. It can move up and down relative to the guide rail, thereby driving the L-shaped yarn guide tube to feed the hot melt wire into the hot melt wire clamping area.

8. The fiber braided tape yarn guiding device with yarn breakage heat-melting splicing function according to claim 5, characterized in that: The hot melt wire adsorption unit is located directly above the hot melt wire clamping area after the yarn winding unit is reset. The hot melt wire adsorption unit includes a suction nozzle and a negative pressure mechanism.

9. The fiber braided ribbon yarn guiding device with yarn breakage heat-melting splicing function according to claim 1, characterized in that: The sliding base includes a base and a sliding plate. The base has a limiting rail and a threaded rod arranged side by side along its extended length, and a feed motor connected to the threaded rod is provided at the end of the base. The bottom of the sliding plate is provided with a slider and a traveling wheel that are adapted to the threaded rod and the limiting rail, respectively.

10. The fiber braided ribbon yarn guiding device with yarn breakage heat-melting splicing function according to claim 1, characterized in that: The yarn guiding mechanism includes an upper yarn guiding unit and a lower yarn guiding unit, and a tensioner is provided on the upper yarn guiding unit and / or the lower yarn guiding unit to sense changes in yarn tension.

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