CN116427070A

CN116427070A - Yarn conveying device

Info

Publication number: CN116427070A
Application number: CN202310421223.4A
Authority: CN
Inventors: 蔡阿体
Original assignee: Fujian Jinao Intelligent Equipment Co ltd
Current assignee: Fujian Jinao Intelligent Equipment Co ltd
Priority date: 2023-04-19
Filing date: 2023-04-19
Publication date: 2023-07-14

Abstract

The invention relates to the field of textile equipment, in particular to a yarn conveying device capable of realizing twisting and conveying of two yarns so as to improve production efficiency, which comprises a shell, a control system, a first yarn input assembly, a second yarn input assembly, a driving motor, a transmission assembly, a twisting yarn wheel, a yarn guide cover, a yarn breakage detection assembly, a twisting tension detection assembly and a yarn outlet bracket, wherein the control system is arranged on the shell, the first yarn input assembly is arranged at the input end of the first yarn channel, the twisting yarn wheel is rotatably arranged on the shell, the twisting yarn wheel is provided with a second yarn channel, the driving motor is connected with the twisting yarn wheel through the transmission assembly, the lower end of the twisting yarn wheel is provided with a guiding part in an inverted cone structure, the yarn guide cover is arranged at the lower side of the twisting yarn wheel, the yarn breakage detection assembly is arranged at the output end of the yarn guide cover, the yarn breakage detection assembly is provided with a photoelectric sensor, and the twisting tension detection assembly is arranged at the output end of the yarn breakage detection assembly.

Description

Yarn conveying device

Technical Field

The invention relates to the field of textile equipment, in particular to a yarn conveying device.

Background

Traditional yarn feeding devices, such as chinese patent application No.: 201210499845.0A knitting yarn feeding device comprises a shell and a yarn outlet frame arranged on the shell, wherein the section of the yarn outlet frame is in an inverted U shape, two free ends of the bottom of the yarn outlet frame are respectively provided with yarn outlet porcelain rings for yarns to pass through, an inductor assembly is arranged on the yarn outlet frame and consists of a mounting frame, an inductor and an inductor yarn outlet porcelain ring, the left side of the mounting frame is detachably arranged on the yarn outlet frame through a fixing block and a fixing screw, the inductor is fixedly connected to the mounting frame, the bottom of the inductor is provided with an induction port for yarns to pass through, the inductor yarn outlet porcelain rings are arranged on the inductor and are positioned on the right side of the inductor, and the two yarn outlet porcelain rings on the yarn outlet frame, the induction port at the bottom of the inductor and the inductor yarn outlet porcelain rings are positioned on the same straight line; the right side of the yarn outlet frame is provided with an installation opening, the left side of the installation frame is provided with a hollow fixing tube inserted into the yarn outlet frame installation opening, the section of the fixing block is L-shaped and consists of a straight cutting connected into a whole and a poking piece perpendicular to the straight cutting, the straight cutting is inserted into an inserting hole of the hollow fixing tube to clamp and fix the installation frame and the right side of the yarn outlet frame, the poking piece is clamped on the right side of the hollow fixing tube or the yarn outlet frame, and a fixing screw perpendicular to the straight cutting penetrates through the side wall of the hollow fixing tube to lock the hollow fixing tube and the fixing block; the two fixing blocks are respectively inserted into the insertion holes of the hollow fixing pipes at the left side and the right side of the yarn outlet frame; the induction port at the bottom of the inductor is in an inverted U shape, and the induction probe on the inductor is arranged in an inverted U shape along the side wall of the inverted U-shaped induction port.

The yarn conveying device can be suitable for yarn conveying for supplying irregular and intermittent yarn consumption in textile machinery such as jacquard circular knitting machines, hosiery knitting machines and the like so as to meet the requirements of factors such as knitting of cloth cover pattern and cloth cover tension difference on yarn supply; however, as social demands are increasing, the textile industry is continuously required to adapt to development, more than one strand or two strands of threads are twisted into a string so as to be combined together, the proper thickness and strength of the string are maintained, or when a fancy yarn is manufactured, two or more colors of threads are twisted into a string, thereby changing the thickness, color and twisting degree of the corresponding yarn, different threads are required to be respectively unreeled and twisted through a yarn twisting device in the preparation process and wound in a winding drum, and when the yarn is to be used, the twisted yarn is input into a knitting machine through a yarn conveying device for use, and the process is complex and the production efficiency is low.

Disclosure of Invention

Accordingly, in view of the above-described problems, the present invention provides a yarn feeding device capable of twisting and feeding two types of yarns to improve the productivity.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

the yarn conveying device comprises a shell, a control system arranged on the shell, a first path yarn input assembly, a second path yarn input assembly, a driving motor, a transmission assembly, a twisting yarn wheel, a yarn guiding cover, a yarn breaking detection assembly, a twisting yarn tension detection assembly and a yarn outlet bracket, wherein the shell is provided with a first yarn channel which vertically penetrates through the shell, the first path yarn input assembly is arranged at the input end of the first yarn channel, the twisting yarn wheel is rotatably arranged on the shell and distributed at the output end of the first yarn channel, the twisting yarn wheel is provided with a second yarn channel which vertically penetrates through the shell and is connected with the first yarn channel, the driving motor is connected with the twisting yarn wheel through the transmission assembly, the lower end of the twisting yarn wheel is provided with a guiding part which is in an inverted cone structure, the yarn guiding cover is arranged at the lower side of the twisting yarn wheel and covers the outer side of the guiding part, the yarn breakage detection assembly is arranged at the output end of the yarn guide cover and is provided with a photoelectric sensor, the yarn twisting tension detection assembly is arranged at the output end of the yarn breakage detection assembly and is provided with a first pressure sensor, the yarn discharging support is arranged on the shell and is provided with yarn discharging porcelain eyes, the yarn discharging porcelain eyes are arranged at the output end of the yarn twisting tension detection assembly and are respectively and electrically connected with the control system, the yarn breakage detection assembly comprises a yarn breakage shell fixedly arranged on the shell, the yarn breakage shell is arranged at the output end of the yarn guide cover and is provided with a channel along the vertical direction, the yarn breakage shell is provided with mounting holes communicated with the channel and distributed along the transverse direction, the photoelectric sensor is arranged at the mounting holes, the periphery of the mounting groove is provided with a blowing hole, and the blowing hole is connected with an air pump through a connecting pipe.

Further, the twisting yarn wheel includes rotationally locates the link of casing lower part, locates the link middle part and along the body of vertical distribution, sets firmly in the last yarn wheel of body upper portion, cover and locates the lower yarn wheel of body lower part, the second yarn passageway is located on the body, the lower part of body is equipped with the card strip of following its axial direction distribution, the inner circle of yarn wheel down is equipped with the guide way with card strip complex, realizes down yarn wheel and slides along the axis direction of body, encircles go up yarn wheel is last evenly to be equipped with at least three logical groove, each logical groove distributes along vertical direction, each logical groove department is equipped with the supporting shoe, be equipped with first spring between supporting shoe and the body, the lower extreme of supporting shoe has an inclined plane, the guide part set firmly with the lower end of yarn wheel down, be equipped with the second spring between the lower terminal surface of guide part and the body, the upper end of yarn wheel upwards is equipped with the extension, through the second spring for the extension upper end supports in the supporting shoe and the upper end and the yarn of the upper and lower size of this yarn is 3mm, and the interval exists between the yarn wheel and the upper end is 3 mm.

Further, upper and lower limiting blocks are respectively arranged on the upper and lower parts of the circumferential outer surface of the lower yarn wheel, the upper and lower limiting blocks are of arc-shaped plate structures, the convex surfaces of the upper and lower limiting blocks face to the outer side, and the upper end of the upper limiting block and the lower yarn wheel are fixedly connected, so that the arc-shaped plate is inclined downwards.

Further, the supporting block comprises a bottom and a protruding portion arranged on the front face of the bottom, the orthographic projection area of the bottom is larger than that of the protruding portion, the protruding portion is embedded in the through groove, the inclined face is arranged at the lower end of the bottom, and a positioning hole for embedding the first spring is formed in the back face of the bottom.

Further, the first path yarn input assembly comprises a yarn guiding tube, a first yarn feeding plate, a yarn clamping assembly and a first tension adjusting assembly, and a first yarn feeding porcelain hole and a second yarn feeding porcelain hole are respectively arranged on the yarn guiding tube and the first yarn feeding plate.

Further, the yarn clamping assembly comprises a first intermediate shaft, a first pressure plate, a second pressure plate, a third spring and a fourth spring, wherein the first intermediate shaft is fixedly arranged on the shell along the transverse direction, the first pressure plate, the second pressure plate, the third spring and the fourth spring are all sleeved on the first intermediate shaft, the first pressure plate and the second pressure plate are respectively abutted against each other through the third spring and the fourth spring, and the elastic coefficient of the third spring is larger than that of the fourth spring.

Further, the first disk body, the second disk body are all including being the first portion of semicircle ball structure and locating the second portion of first portion week edge, the second portion is curved surface structure, and its concave surface is opposite with the concave surface of first portion, the middle part of first portion is equipped with the through-hole that supplies first intermediate shaft to pass, press from both sides yarn subassembly still including cover body and the seventh spring of cover on the first intermediate shaft, the middle part of cover body is equipped with the slot, the slot is spiral structure, between the first portion of cover body, seventh spring distribution first disk body, second disk body, the both ends distribution of seventh spring are supported on cover body and second disk body.

Further, the first tensioning force adjusting component comprises a first rotating shaft, a second rotating shaft, a third rotating shaft, two first adjusting cylinders arranged on the shell, a fifth spring arranged in the first adjusting cylinders and a first sliding rod, wherein the two axial ends of the first rotating shaft and the third rotating shaft are respectively and rotatably arranged on the shell through bearings, the second rotating shaft is distributed between the first rotating shaft and the third rotating shaft, the free end of the first sliding rod is provided with a connecting seat, the two transverse ends of the second rotating shaft are rotatably arranged on the connecting seat through bearings, the central axis of the first sliding rod is vertically distributed with the central axis of the second rotating shaft, and a second pressure sensor is arranged in any adjusting cylinder.

Further, the control system comprises a controller, a display screen, a wireless connection module, a loudspeaker, an angle sensor for detecting the rotation angle of the turntable and a position sensor for detecting the position of the yarn feeding wheel, wherein the first pressure sensor, the second pressure sensor, the third pressure sensor, the photoelectric sensor, the angle sensor and the position sensor are respectively electrically connected with the input end of the controller, the display screen, the driving motor and the loudspeaker are respectively electrically connected with the output end of the controller, and the controller is connected with the movable equipment through the wireless connection module.

By adopting the technical scheme, the invention has the beneficial effects that: this yarn conveying device, first yarn enters into first yarn passageway through first way yarn input subassembly in proper order, in the second yarn passageway, and wear out through the bottom of guiding part, the second yarn enters into the twisting yarn through second way yarn input subassembly and take turns to, simultaneously, through the rotation of driving motor drive twisting yarn wheel, realize the winding traction and the yarn storage effect of second yarn, and follow guiding part downward spiral slip, twine in the surface of the first yarn that wears out by guiding part bottom in yarn guide cover department again, realize the twisting of two kinds of yarns, control system rethread photoelectric sensor detects the quality of twisting yarn and detects the tensioning force of the twisting yarn of synchronous detection input through the first pressure sensor on the twisting yarn tensioning force detection subassembly, feed back in control system again, and in the rotational speed of control driving motor, namely under the circumstances that first yarn is carried at uniform velocity, the rotation speed control second yarn takes turns to, thereby the density size of the second yarn in the unit length on the control first yarn, realize the tensioning adjustment of twisting yarn and the twisting force and the twisting yarn quality of twisting yarn and the twisting force of twisting yarn and the twisting device of colour and the yarn can be realized, the yarn can be more simply and the twisting device is more intelligent, the yarn can be produced and the twisting device is more simply, and the yarn is more accurate.

Drawings

FIG. 1 is a schematic elevational view of an embodiment of the present invention;

FIG. 2 is a schematic right-side view of a second tension adjustment assembly according to an embodiment of the present invention;

FIG. 3 is a schematic view of a first yarn input assembly according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a twist yarn wheel in an embodiment of the invention;

FIG. 5 is a right side view of a clamping assembly according to an embodiment of the present invention;

FIG. 6 is a schematic elevational view of a tension sensing assembly in accordance with an embodiment of the present invention;

FIG. 7 is a schematic diagram of a right-hand construction of a tension detecting assembly in accordance with an embodiment of the present invention;

FIG. 8 is a schematic view of the structure of a yarn twisting tension detecting assembly according to an embodiment of the present invention;

fig. 9 is a circuit block diagram of an embodiment of the present invention.

Detailed Description

The invention will now be further described with reference to the drawings and detailed description.

The embodiment of the invention comprises the following steps:

referring to fig. 1 to 9, a yarn feeding device comprises a housing 1, a control system 2 arranged on the housing 1, a first yarn input assembly 3, a second yarn input assembly 4, a driving motor 5, a transmission assembly 6, a twisting yarn wheel 7, a yarn guiding cover 8, a yarn breaking detection assembly 9, a yarn twisting tension detection assembly 10 and a yarn discharging support 11, wherein the housing 1 is provided with a first yarn channel 12 vertically penetrating the housing, the first yarn input assembly 3 is arranged at the input end of the first yarn channel 12, the twisting yarn wheel 7 is rotatably arranged on the housing 1 and distributed at the output end of the first yarn channel 12, the twisting yarn wheel 7 is provided with a second yarn channel 13 vertically penetrating the housing and connected with the first yarn channel 12, the driving motor 5 is connected with the twisting yarn wheel 7 through the transmission assembly 6, the lower end of the twisting yarn wheel 7 is provided with a guiding part 14 in an inverted cone structure, the yarn guiding cover 8 is arranged at the lower side of the twisting yarn wheel 7, the guiding part 14 is arranged at the outer side of the guiding part, the yarn breaking detection assembly 8 is arranged at the yarn breaking tension detection assembly 9, the yarn sensor 10 is arranged at the yarn sensor 5, the yarn sensor is electrically connected with the yarn sensor 10, the yarn sensor is arranged at the yarn sensor 1, the yarn sensor is electrically connected with the yarn sensor 10, the yarn sensor is arranged at the yarn sensor is electrically connected with the yarn sensor 1, the yarn sensor is electrically connected with the yarn sensor 10, and the yarn sensor is electrically connected with the yarn sensor is provided with the yarn sensor 1, and is electrically connected with the yarn sensor 1.

In the yarn conveying device, a first yarn 100 sequentially enters a first yarn channel 12 and a second yarn channel 13 through a first yarn input assembly 3 and passes out through the bottom of a guide part 14, a second yarn 200 enters a twisting yarn wheel 7 through a second yarn input assembly 4, meanwhile, the twisting yarn wheel 7 is driven to rotate through a driving motor 5, the winding traction and yarn storage effect of the second yarn 200 are realized, the second yarn slides downwards in a spiral manner along the guide part 14, the second yarn is wound on the outer surface of the first yarn 100 passing out from the bottom of the guide part 14 at a yarn guide cover 8, the twisting of the two yarns is realized, a control system detects the quality of the twisting yarns through a photoelectric sensor 91 and the tension of the twisting yarns synchronously detected through a first pressure sensor 101 on a twisting tension detecting assembly 10, and the second yarn is fed back to the control system 2, and the rotating speed of the driving motor 5 is controlled, namely, the rotating speed of the twisting yarn wheel 7 on the second yarn 200 is used for controlling the conveying speed of the second yarn 200 under the condition that the first yarn 100 is conveyed at a constant speed, so that the density of the second yarn 200 in unit length on the first yarn 100 is controlled, the tensioning force adjustment of the twisting yarn and the thickness, the color and the twisting degree of the twisting yarn are realized, the yarn conveying device is simple in structure, the specification of the twisting yarn can be controlled well and intelligently, the twisting and conveying functions of the two yarns can be realized, and the production efficiency is further improved.

The twisting yarn wheel 7 comprises a connecting frame 71 rotatably arranged at the lower part of the shell 1, a tube body 72 arranged at the middle part of the connecting frame 71 and distributed vertically, an upper yarn wheel 73 fixedly arranged at the upper part of the tube body 72, and a lower yarn wheel 74 sleeved at the lower part of the tube body 72, wherein the second yarn 200 is arranged on the tube body 72 in a channel manner, the lower part of the tube body 72 is provided with clamping strips 75 distributed along the axial direction thereof, the inner ring of the lower yarn wheel 74 is provided with guide grooves 76 matched with the clamping strips 75, so that the lower yarn wheel 74 slides along the axial direction of the tube body 72, at least three through grooves 77, preferably six through grooves 77 are uniformly arranged around the upper yarn wheel 73, each through groove 77 is distributed along the vertical direction, each through groove 77 is provided with a supporting block 78, a first spring 79 is arranged between the supporting block 78 and the pipe body 72, an inclined surface 781 is arranged at the lower end of the supporting block 78, a second spring 80 is arranged between the inner surface of the guiding part 14 and the lower end surface of the pipe body 72, an extending part 81 is upwards arranged at the upper end of the lower yarn wheel 74, the upper end of the extending part 81 is abutted against the inclined surface 781 of the supporting block 78 through the second spring 80, a space is arranged between the upper yarn wheel 73 and the lower yarn wheel 74, the space is 3 mm-6 mm, preferably 4mm, and an upper limit block 82 and a lower limit block 83 are respectively arranged at the upper part and the lower part of the circumferential outer surface of the lower yarn wheel 74;

the upper limiting block 82 and the lower limiting block 83 are arc-shaped plate structures, the convex surfaces of the upper limiting block 82 and the lower limiting block 83 face outwards, and the upper ends of the upper limiting block and the lower yarn wheel 74 are fixedly connected, so that the arc-shaped plate structures are inclined downwards;

the supporting block 78 includes a bottom 782 and a protrusion 783 disposed on a front surface of the bottom 782, where a front projection area of the bottom 782 is larger than a front projection area of the protrusion 783, the protrusion 783 is embedded in the through groove 77, the inclined surface 781 is disposed at a lower end of the bottom 782, and a positioning hole 784 in which the first spring 79 is embedded is disposed on a back surface of the bottom 782;

the driving motor 5 drives the connecting frame 71 to rotate, thereby driving the tube body 72, the upper yarn wheel 73 and the lower yarn wheel 74 on the connecting frame 71 to synchronously rotate, the input second yarn 200 is wound on the upper yarn wheel 73 and the lower yarn wheel 74, the yarn storage effect is realized, meanwhile, when the tensioning force of the second yarn 200 is changed, the force of winding on the upper yarn wheel 73 is changed, the supporting block 78 on the upper yarn wheel 73 floats up and down under the action of the first spring 79, the supporting block 78 floats, the lower yarn wheel 74 abutted against the inclined surface 781 of the supporting block 78 moves along the axial direction of the tube body 72 under the action of the second spring 80, namely the distance between the upper yarn wheel 73 and the lower yarn wheel 74 is changed, thereby realizing the automatic adjustment of the tensioning force of the second yarn 200, so that the tensioning force of the second yarn is consistent with the twisting yarn, thereby improving the consistency of the tensioning force of the twisting yarn, and further improving the quality of the twisting yarn.

The first path yarn input assembly 3 comprises a yarn drawing tube 31, a first yarn feeding plate 32, a yarn clamping assembly 33 and a first tension adjusting assembly 34, wherein the yarn drawing tube 31 and the first yarn feeding plate 32 are respectively provided with a first yarn feeding porcelain eye 35 and a second yarn feeding porcelain eye 36;

the yarn clamping assembly 33 comprises a first intermediate shaft 331, a first pressing disc 332, a second pressing disc 333, a third spring 334 and a fourth spring 335, wherein the first intermediate shaft 331 is fixedly arranged on the shell 1 along the transverse direction, the first pressing disc 332, the second pressing disc 333, the third spring 334 and the fourth spring 335 are sleeved on the first intermediate shaft 331, the first pressing disc 332 and the second pressing disc 333 are respectively abutted against each other through the third spring 334 and the fourth spring 335, and the elastic coefficient of the third spring 334 is larger than that of the fourth spring 335;

the first disc 332 and the second disc 333 each comprise a first portion 201 with a semi-spherical structure and a second portion 202 disposed at the periphery of the first portion 201, the second portion 202 is in a curved surface structure, the concave surface of the second portion 202 is opposite to that of the first portion 201, a through hole 203 for the first intermediate shaft 331 to pass through is formed in the middle of the first portion 201, the yarn clamping assembly 33 further comprises a sleeve body 336 and a seventh spring 337 sleeved on the first intermediate shaft 331, a groove 338 is formed in the middle of the sleeve body 336, the groove 338 is in a spiral structure, the sleeve body 336 and the seventh spring 337 are distributed between the first portion 201 of the first disc 332 and the first portion 201 of the second disc 333, and two ends of the seventh spring 337 are distributed and abutted to the sleeve body 336 and the second disc 333.

The working principle of the yarn clamping component is as follows: the first yarn 100 is led into the yarn clamping assembly 33 through the yarn guiding tube 31, the first yarn feeding porcelain hole 35 and the second yarn feeding porcelain hole 36 of the first yarn feeding plate 32 in sequence, primary tensioning of the yarn is achieved, the first disc 332 and the second disc 333 on the yarn clamping assembly 33 are clamped through the third spring 334 and the fourth spring 335, vibration during conveying of the first yarn 100 is prevented, the first yarn 100 is wound on the groove 338 on the sleeve body 336, stability of the first yarn 100 is further improved, friction force between the first yarn 100 and the sleeve body 336, friction force between the first disc 332 and the second disc 333 is stable through cooperation of the third spring 334 and the fourth spring 335 and the seventh spring 337, dynamic balance of pulling force, friction force and transverse pulling force is achieved, and accordingly tensioning force of the first yarn 100 is stable.

The first tension adjusting assembly 34 includes a first rotating shaft 341, a second rotating shaft 342, a third rotating shaft 343, two first adjusting cylinders 344 disposed on the housing 0, a fifth spring 345 disposed in the first adjusting cylinders 344, and a first sliding rod 346, wherein axial ends of the first rotating shaft 341 and the third rotating shaft 343 are rotatably disposed on the housing 1 through bearings, the second rotating shaft 342 is distributed between the first rotating shaft 341 and the third rotating shaft 343, free ends of the first sliding rod 346 are provided with connecting seats 347, lateral ends of the second rotating shaft 342 are rotatably disposed on the connecting seats 347 through bearings, a central axis of the first sliding rod 346 is vertically distributed with a central axis of the second rotating shaft 342, and a second pressure sensor 348 is disposed in any one of the first adjusting cylinders 344;

the first yarn 100 is sequentially wound on the first rotating shaft 341, the second rotating shaft 342 and the third rotating shaft 343 for conveying, when the tensioning force of the first yarn 100 is changed, the force acting on the second rotating shaft 342 is changed, so that the force compressed on the fifth spring 345 is changed, the connecting seat 347 is driven to move, the second rotating shaft 342 moves along the axial direction of the first adjusting cylinder 344 of the second rotating shaft 342, namely, the distance between the second rotating shaft 342 and the first rotating shaft 341 and the distance between the second rotating shaft 342 and the third rotating shaft 343 are changed, the tensioning force of the first yarn 100 are changed, and meanwhile, the first yarn 100 is matched with the seventh spring 345 and the sleeve body 337, so that the first yarn 100 can be well positioned at the axial position of the second rotating shaft 342, the detection error on the second pressure sensor 348 caused by transverse offset in the conveying process of the first yarn 100 is reduced, and the detection accuracy of the second sensor 348 is improved.

The second yarn input assembly 4 comprises a second yarn feeding plate 41, a tension detecting assembly 42 and a second tension adjusting assembly 43, and a third yarn feeding porcelain hole 44 is arranged on the second yarn feeding plate 41;

the tension force detection assembly 42 comprises a second intermediate shaft 421 fixedly arranged on the shell 1, a rotary table 422 rotatably arranged on the second intermediate shaft 421, a clamping block 423 and a raised strip 424 fixedly arranged on the second intermediate shaft 421, a sliding block 425 sleeved with the second intermediate shaft 421 and clamped at the raised strip 424, a torsion spring 426, a swinging rod 427 and a third pressure sensor 428, wherein the clamping block 423 is distributed between the rotary table 422 and the raised strip 424, the raised strip 424 is distributed along the axial direction of the second intermediate shaft 421, two ends of the torsion spring 426 are respectively connected with the peripheral edge of the rotary table 422 and the sliding block 425, the third pressure sensor 428 is arranged on the clamping block 423 and faces one side of the sliding block 425, one end of the swinging rod 427 is fixedly arranged on the peripheral edge of the rotary table 422, and the other end of the swinging rod 427 is provided with a first yarn guiding porcelain eye 429; when the yarn tension changes, the swing rod 427 is driven to swing, the swing rod 427 swings to drive the turntable 422 to rotate, the sliding block 425 is pulled to move along the axial direction of the second intermediate shaft 421 under the action of the torsion spring 426, so that the pressing force between the sliding block 425 and the clamping block 423 changes, the third pressure sensor 428 detects the pressing force between the sliding block 425 and the clamping block 423, and further the tension of the second yarn 200 is detected, and the device has the advantages of simple structure, high detection accuracy, capability of rapidly reflecting the change of the yarn tension and improving the use accuracy;

the second tension adjusting assembly 43 comprises two second adjusting cylinders 431 arranged on the shell 1, a sixth spring 432 and a second sliding rod 433 arranged in the second adjusting cylinders 431, and a first adjusting rod 434 and a second adjusting rod 435 distributed on the outer side of the circumference of the upper yarn wheel 73, wherein the upper ends of the first adjusting rod 434 and the upper ends of the second adjusting rods 435 are respectively hinged with the outer ends of the second sliding rods 433, the first adjusting rod 434 and the second adjusting rod 435 are respectively arranged between the second yarn feeding plate 41 and the upper yarn wheel 73, the lower end of the first adjusting rod 434 is provided with a second yarn guiding porcelain eye 436, the lower end of the second adjusting rod 435 is provided with a third yarn guiding porcelain eye 437, the height of the second yarn guiding porcelain eye 436 is equal to that of the third yarn guiding porcelain eye 437, and the central axis of the second yarn guiding porcelain eye 436 is parallel to the central axis of the third yarn guiding porcelain eye 437;

the second yarn 200 sequentially passes through the first adjusting rod 434 and the second adjusting rod 435 on the second tension adjusting assembly 43, and the tension of the second yarn 200 drives the first adjusting rod 434 and the second adjusting rod 435 to swing, so that the sixth spring 432 stores force, when the tension of the second yarn 200 slightly changes, the opposite or opposite swinging of the first adjusting rod 434 and the second adjusting rod 435 is realized through the reaction of the sixth spring 432, so that the tension of the second yarn 200 is stable, and the yarn delivery stability of the yarn output by the yarn outlet porcelain eye 15 is good.

The broken yarn detection assembly 9 comprises a broken yarn shell 92 fixedly arranged on the shell 1, the broken yarn shell 91 is arranged at the output end of the yarn guide cover 8, a channel 93 is arranged on the broken yarn shell 92 along the vertical direction, a mounting hole 94 communicated with the channel 93 and distributed along the transverse direction is arranged on the broken yarn shell 92, the photoelectric sensor 91 is arranged at the mounting hole 94, a blowing hole 95 is arranged at the periphery of the mounting hole 94, and the blowing hole 95 is connected with an air pump through a connecting pipe.

The twisted yarn is output through the yarn guide cover 8 and enters the channel 93, the air pump blows air flow into the channel 93 through the connecting pipe and the air blowing hole 95, so that the twisted yarn conveyed along the vertical direction acts on from the transverse direction, the twisted yarn is tremble, the twisted yarn is detected through the photoelectric sensor 91, the detection accuracy is improved, redundant cotton wool and dust are prevented from being attached to the twisted yarn or the photoelectric sensor 91, the dust removal effect is achieved, and the detection accuracy is improved.

The yarn twisting tension detecting assembly 10 comprises a detecting frame 102 hinged to the yarn outlet frame 11, a reset spring 103 connected with the detecting frame 102 and a pressing block 104 arranged at the free end of the reset spring 103, wherein the first pressure sensor 101 is arranged between the pressing block 104 and the yarn outlet frame 11, and the reset spring 103 is driven by the swinging angle of the detecting frame 102 to realize stroke compression, so that the pressure value on the pressing block 104 changes, and the tension of twisted yarns is detected by the first pressure sensor 101.

The control system 2 comprises a controller 21, a display screen 22, a wireless connection module 23, a loudspeaker 24, an angle sensor 25 for detecting the rotation angle of the turntable 422 and a position sensor 26 for detecting the position of the lower yarn wheel 74, wherein the first pressure sensor 101, the second pressure sensor 348, the third pressure sensor 428, the photoelectric sensor 91, the angle sensor 25 and the position sensor 26 are respectively and electrically connected with the input end of the controller 21, the display screen 22, the driving motor 5 and the loudspeaker 24 are respectively and electrically connected with the output end of the controller 21, the controller 21 is connected with a movable device 27 through the wireless connection module 23, preferably, the wireless connection module 23 is a Bluetooth module, and the movable device 27 is a mobile phone.

Because the lower yarn wheel 74 is in a sliding state, the yarn storage amount on the lower yarn wheel 74 changes, or the tension of the second yarn 200 changes to drive the lower yarn wheel 74 to move along the axial direction of the pipe body 72, the position of the lower yarn wheel 74 in a suspension state is detected through the position sensor 26, the rotation angle of the rotary table 422 is detected through the angle sensor 25, and the combination detection of the three positions is realized through the combination detection of the third pressure sensor 428, so that the yarn storage amount of the yarn and the tension of the second yarn 200 are detected, the detection precision is improved, and data are transmitted to the controller 21, on one hand, the data are displayed in real time through the display screen 22, or connected with the movable equipment 27 through the wireless connection module 23 and displayed in real time, so that an operator can intuitively observe the yarn tension changes, an alarm is realized through a loudspeaker, on the other hand, the controller 21 transmits data judgment, and the rotation speed of the driving motor 5 is controlled to realize yarn tension adjustment, and the stability of the tension is kept.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A yarn feeding device, characterized in that: comprises a shell, a control system arranged on the shell, a first path yarn input assembly, a second path yarn input assembly, a driving motor, a transmission assembly, a twisting yarn wheel, a yarn guiding cover, a broken yarn detection assembly, a twisting yarn tension detection assembly and a yarn outlet bracket, wherein the shell is provided with a first yarn channel which vertically penetrates through the shell, the first path yarn input assembly is arranged at the input end of the first yarn channel, the twisting yarn wheel is rotatably arranged on the shell and distributed at the output end of the first yarn channel, the twisting yarn wheel is provided with a second yarn channel which vertically penetrates through the shell and is connected with the first yarn channel, the driving motor is connected with the twisting yarn wheel through the transmission assembly, the lower end of the twisting yarn wheel is provided with a guide part in an inverted cone structure, the yarn guiding cover is arranged at the lower side of the twisting yarn wheel, the cover is arranged at the outer side of the guide part, the yarn breakage detection assembly is arranged at the output end of the yarn guide cover and is provided with a photoelectric sensor, the yarn twisting tension detection assembly is arranged at the output end of the yarn breakage detection assembly and is provided with a first pressure sensor, the yarn discharging support is arranged on the shell, the yarn discharging support is provided with yarn discharging porcelain eyes, the yarn discharging porcelain eyes are arranged at the output end of the yarn twisting tension detection assembly, the photoelectric sensor, the first pressure sensor and the driving motor are respectively and electrically connected with the control system, the yarn breakage detection assembly comprises a yarn breakage shell fixedly arranged on the shell, the yarn breakage shell is arranged at the output end of the yarn guide cover and is provided with a channel along the vertical direction, the yarn breakage shell is provided with mounting holes communicated with the channel and distributed along the transverse direction, the photoelectric sensor is arranged at the mounting holes, the periphery of the mounting grooves is provided with air blowing holes, the air blowing hole is connected with an air pump through a connecting pipe.

2. Yarn feeding device as in claim 1, wherein: the twisting yarn wheel comprises a connecting frame rotatably arranged at the lower part of the shell, a tube body arranged at the middle part of the connecting frame and distributed vertically, an upper yarn wheel fixedly arranged at the upper part of the tube body, and a lower yarn wheel sleeved at the lower part of the tube body, wherein a clamping strip distributed along the axial direction of the tube body is arranged at the lower part of the tube body, a guide groove matched with the clamping strip is arranged at the inner ring of the lower yarn wheel, the lower yarn wheel slides along the axial direction of the tube body, at least three through grooves are uniformly formed in the upper yarn wheel in a surrounding manner, the through grooves are distributed along the vertical direction, supporting blocks are arranged at the through grooves, a first spring is arranged between the supporting blocks and the tube body, an inclined surface is arranged at the lower end of each supporting block, a second spring is arranged between the inner surface of the guide part and the lower end surface of the tube body, an extending part is arranged upwards at the upper end of the lower yarn wheel, the extending part is enabled to be abutted against the inclined surface of the supporting blocks, and the distance between the upper yarn wheel and the lower yarn wheel is between the upper yarn wheel and the distance and the lower yarn wheel is between the distance and 3 mm.

3. Yarn feeding device as in claim 2, wherein: the upper part and the lower part of the circumferential outer surface of the lower yarn wheel are respectively provided with an upper limiting block and a lower limiting block, the upper limiting block and the lower limiting block are of arc-shaped plate structures, the convex surfaces of the upper limiting block and the lower limiting block face to the outer side, and the upper end of the upper limiting block and the lower limiting block are fixedly connected with the lower yarn wheel, so that the arc-shaped plate structures are inclined downwards.

4. A yarn feeding device as claimed in claim 3, wherein: the supporting block comprises a bottom and a protruding portion arranged on the front face of the bottom, the orthographic projection area of the bottom is larger than that of the protruding portion, the protruding portion is embedded in the through groove, the inclined face is arranged at the lower end of the bottom, and a positioning hole for embedding a first spring is formed in the back face of the bottom.

5. Yarn feeding device according to any one of claims 1 to 4, characterised in that: the first yarn input assembly comprises a yarn guiding tube, a first yarn feeding plate, a yarn clamping assembly and a first tension adjusting assembly, and a first yarn feeding porcelain eye and a second yarn feeding porcelain eye are respectively arranged on the yarn guiding tube and the first yarn feeding plate.

6. Yarn feeding device as in claim 5, wherein: the yarn clamping assembly comprises a first dielectric shaft, a first pressure plate, a second pressure plate, a third spring and a fourth spring, wherein the first dielectric shaft is fixedly arranged on the shell along the transverse direction, the first pressure plate, the second pressure plate, the third spring and the fourth spring are all sleeved on the first dielectric shaft, the first pressure plate and the second pressure plate are respectively abutted against each other through the third spring and the fourth spring, and the elastic coefficient of the third spring is larger than that of the fourth spring.

7. Yarn feeding device as in claim 6, wherein: the yarn clamping assembly comprises a first disc body, a second disc body, a sleeve body, a seventh spring, a sleeve body and a winding mechanism, wherein the first disc body and the second disc body are both of a semi-spherical structure, the second portion is arranged on the periphery of the first portion, the second portion is of a curved surface structure, the concave surface of the second portion is opposite to that of the first portion, a through hole for a first medium shaft to pass through is formed in the middle of the first portion, the sleeve body and the seventh spring are sleeved on the first medium shaft, a groove is formed in the middle of the sleeve body, the groove is of a spiral structure, the sleeve body and the seventh spring are distributed between the first portion of the first disc body and the first portion of the second disc body, and two ends of the seventh spring are distributed and propped against the sleeve body and the second disc body.

8. Yarn feeding device as in claim 7, wherein: the first tensioning force adjusting component comprises a first rotating shaft, a second rotating shaft, a third rotating shaft, two first adjusting cylinders arranged on the shell, a fifth spring and a first sliding rod, wherein the fifth spring and the first sliding rod are arranged in the first adjusting cylinders, the two axial ends of the first rotating shaft and the third rotating shaft are respectively and rotatably arranged on the shell through bearings, the second rotating shaft is distributed between the first rotating shaft and the third rotating shaft, the free end of the first sliding rod is provided with a connecting seat, the two transverse ends of the second rotating shaft are rotatably arranged on the connecting seat through bearings, the central axis of the first sliding rod is vertically distributed with the central axis of the second rotating shaft, and a second pressure sensor is arranged in any adjusting cylinder.

9. Yarn feeding device as in claim 1, wherein: the control system comprises a controller, a display screen, a wireless connection module, a loudspeaker, an angle sensor for detecting the rotation angle of the turntable and a position sensor for detecting the position of the yarn feeding wheel, wherein the first pressure sensor, the second pressure sensor, the third pressure sensor, the photoelectric sensor, the angle sensor and the position sensor are respectively electrically connected with the input end of the controller, the display screen, the driving motor and the loudspeaker are respectively electrically connected with the output end of the controller, and the controller is connected with the movable equipment through the wireless connection module.