CN202595439U

CN202595439U - Yarn storage device

Info

Publication number: CN202595439U
Application number: CN 201220278401
Authority: CN
Inventors: 高山
Original assignee: CIXI TAIYANGZHOU TEXTILE TECHNOLOGY Co Ltd
Current assignee: Zhejiang Sunzhou Electric Technology Co Ltd
Priority date: 2012-06-08
Filing date: 2012-06-08
Publication date: 2012-12-12
Anticipated expiration: 2022-06-08

Abstract

The utility model relates to the field of knitting equipment. A yarn storage device comprises a motor, a shell, a photoelectric sensor, a shading sleeve, and a main shaft and a yarn conveying wheel which are arranged on the shell, wherein the photoelectric sensor is positioned on the outer side of the yarn conveying wheel; the shading sleeve is sleeved on the main shaft to prevent the main shaft from reflecting light; metal spokes which are regularly arranged and have the same width are arranged on the yarn conveying wheel; clearances with the same width are formed between every two adjacent metal spokes; the photoelectric sensor comprises at least two groups of photoelectric tubes; and at least one group of photoelectric tubes correspond to the metal spokes on the yarn conveying wheel and the clearances on the yarn conveying wheel. The yarn storage device has the advantages that the yarn storage device has a novel structure and is consistent in feeding and discharging speeds and tension force of yarns, and the motor can be accurately switched on and switched off.

Description

A kind of yarn storage device

Technical field

The utility model relates to the knitting equipment field, especially a kind of yarn storage device that is used on the knitting machine.

Background technology

Yarn storage device is the vitals on the knitting machine, and yarn storage device mainly comprises housing and main shaft and line-transmitting wheel mounted thereto, and yarn ring and tension ring are pressed in socket on the line-transmitting wheel, and main shaft is in the circle centre position of line-transmitting wheel, and main shaft drives the line-transmitting wheel rotation and stores up yarn.The storage yarn is that yarn advances yarn and is stored on the line-transmitting wheel, and defeated yarn is that yarn passes through tension ring and exports from line-transmitting wheel.Yarn storage device storage yarn process is following: motor rotates and drives the line-transmitting wheel rotation, and yarn constantly increases on line-transmitting wheel in storage yarn process, along with the increase of yarn; Afterburning constantly increase; Move on the pressure yarn hoop on the line-transmitting wheel, when on pressing the yarn hoop, moving to a certain degree, contact the switch that makes the inside with limit switch and break off; This moment, motor quit work, and the storage yarn stops.The defeated line process of yarn storage device is following: yarn constantly reduces on line-transmitting wheel in defeated line process, presses the yarn ring because tension force reduces, and is also constantly moving down; When moving down into to a certain degree, contact the switch opens that makes the inside with limit switch, machine operation continues the storage yarn; When line-transmitting wheel storage yarn arrived to a certain degree, switch was disconnected, and motor stops; The storage yarn stops, so circulation.The deficiency that existing yarn storage device exists is: 1. from start to finish rotating speed is identical for motor when storing up yarn; Along with the thickness of yarn on the increase line-transmitting wheel of yarn is different; Therefore when advancing yarn on the line-transmitting wheel yarn to advance yarn speed all different with tension force; And be that speed and tension force are substantially invariable during through the defeated yarn of the defeated yarn speed yarn storage device of tension ring control during the defeated yarn of yarn storage device; Speed and tension force when speed when line-transmitting wheel advances yarn on the yarn storage device and tension force and yarn are inconsistent, and tension fluctuation is bigger, therefore influence the quality of knit product; 2. motor stops to adopt the mode of mechanical switch; The full yarn of line-transmitting wheel is promptly pressed to move on the yarn hoop and contact the switch that makes the inside with limit switch and be disconnected to the during this period of time line-transmitting wheel of motor between stopping operating also at the storage yarn, and yarn during this period of time advances yarn tension and fluctuates very big; In like manner, defeated yarn need to begin that yarn exhausts on the line-transmitting wheel, and life period was poor between yarn exhausted and rotates to limit switch control motor, and the generation main cause of the problems referred to above is that the mode causes motor switch of mechanical type control motor switch is not accurate.

Summary of the invention

The goal of the invention of the utility model is in order to overcome the deficiency that above-mentioned existing yarn storage device exists, a kind of novel structure to be provided, and yarn advances speed, the uniform tension in order of yarn and yarn, and motor switch is yarn storage device accurately.

In order to realize the foregoing invention purpose, the utility model has adopted following technical scheme:

A kind of yarn storage device; Comprise motor, housing and main shaft and line-transmitting wheel mounted thereto, yarn ring and tension ring are pressed in socket on the line-transmitting wheel, and main shaft is in the circle centre position of line-transmitting wheel; Motor drives line-transmitting wheel through main shaft and rotates; Also comprise photoelectric sensor and shading sleeve, photoelectric sensor is in the outside of line-transmitting wheel, and shading sleeve is enclosed within and prevents on the main shaft that it is reflective; Said line-transmitting wheel is provided with metal spoke regularly arranged and that width is identical, is provided with the identical gap of width between the adjacent metal spoke; Said photoelectric sensor comprises two groups of photoelectric tubes at least, the gap location on the metal spoke on the corresponding line-transmitting wheel of at least one group of photoelectric tube wherein, at least one group of corresponding line-transmitting wheel of photoelectric tube.

As preferably, said shading sleeve is the round plastic shading sleeve, and round plastic shading sleeve and line-transmitting wheel are center of circle concentric arrangement with the main shaft, and the distance of all photoelectric tubes to shading sleeve lateral wall is identical, and the distance of all photoelectric tubes to metal spoke lateral wall is identical.

As preferably, said photoelectric sensor is made up of three groups of photoelectric tubes; Said metal spoke is identical with the width in gap, and photoelectric sensor is installed on the housing and the position is in the outside that photoelectric sensor is in line-transmitting wheel.

Adopted a kind of yarn storage device of technique scheme, during yarn storage device storage yarn, photoelectric sensor is luminous to the gap location on metal spoke and the line-transmitting wheel respectively; Different according to rotating speed and material; The reflected signal of metal spoke and shading sleeve is different, and the reflected signal strengths different with shading sleeve through the metal spoke produce difference, through the variation control rotating speed of motor of difference; Speed and the tension force of the speed that makes yarn storage device storage yarn during with tension force and yarn is consistent the quality of raising knit product.The advantage of this yarn storage device is a novel structure, and yarn advances speed, the uniform tension in order of yarn and yarn, and motor switch is accurate.

Description of drawings

Fig. 1: the structural representation of the yarn storage device of the utility model.

Fig. 2: the utility model does not have the structural representation of yarn storage device of the line-transmitting wheel of assembling.

The specific embodiment

The utility model is done with Fig. 2 below in conjunction with accompanying drawing 1 and to be further described.

A kind of yarn storage device as depicted in figs. 1 and 2; Comprise motor, housing 1 and be installed in photoelectric sensor 2, main shaft, shading sleeve 6 and the line-transmitting wheel 3 on the housing 1, yarn ring 5 and tension ring 4 are pressed in socket on the line-transmitting wheel 3; Press yarn ring 5 to make yarn, speed and tension force when yarn is failed in tension ring 4 controls to downslide.Main shaft is in the circle centre position of line-transmitting wheel 3, and motor drives line-transmitting wheel 3 through main shaft and rotates, and photoelectric sensor 2 is installed on the housing 1 and the position is in the outside of line-transmitting wheel 3.

Shading sleeve 6 is enclosed within and prevents on the main shaft that it is reflective.Line-transmitting wheel 3 is provided with metal spoke 31 regularly arranged and that width is identical, is provided with the identical gap of width 32 between the adjacent metal spoke 31, and metal spoke 31 is identical with the width in gap 32.Photoelectric sensor 2 comprises two groups of photoelectric tubes at least, 32 places, gap on the metal spoke 31 on the corresponding line-transmitting wheel 3 of at least one group of photoelectric tube wherein, at least one group of corresponding line-transmitting wheel 3 of photoelectric tube.Shading sleeve 6 is round plastic shading sleeves; Round plastic shading sleeve and line-transmitting wheel 3 are center of circle concentric arrangement with the main shaft; The distance of all photoelectric tubes to shading sleeve 6 lateral walls is identical; The distance of all photoelectric tubes to metal spoke 31 lateral walls is identical, has guaranteed that promptly the time of reception of all photoelectric tubes in the gap 32 on the corresponding line-transmitting wheel 3 is identical.At least one group of photoelectric tube transmits to metal spoke 31, metal spoke 31 reflection produce reflection strong and weak signals and reflection interval signal.At least one group of photoelectric tube transmits to 32 places, gap, shading sleeve 6 reflection produce reflection strong and weak signals and reflection interval signal.Difference through two reflection strong and weak signals produces control signal control rotating speed of motor.Through two reflection interval signal can further confirm into amount of thread, also can be, and the motion mode and the rotating speed of the reflected signal control motor through photoelectric sensor 2 through signal adjustment reflection interval rotating speed of motor.

The method of line-transmitting wheel motion state comprises the steps: that the transmitter on (1) all photoelectric tubes is luminous on the control yarn storage device; Wherein at least one group of light process metal spoke 31 reflections that transmitter sends, corresponding receiving tube receives the reflection strong and weak signals that metal spoke 31 reflects; Wherein the light that sends of at least one group of transmitter gets into 32 places, gap on the line-transmitting wheel 3, and its corresponding receiving tube receives the reflection strong and weak signals that the plastics shading sleeve reflects; (2) the reflection strong and weak signals that reflection strong and weak signals that metal spoke 31 is reflected and plastics shading sleeve reflect is compared, and produces a difference; (3) can calculate current amount of thread through difference; And calculate motor speed according to the yarn tension that advances that current amount of thread and needs reach; The variation of difference forms a variable signal after control chip calculates; Silicon controlled conducting angle and time are controlled rotating speed of motor with this in the variable signal control circuit.

When work, along with the rotation of line-transmitting wheel 3, the yarn on the line-transmitting wheel 3 increases, and the amplitude of input reduces, and explains that into yarn speed lets motor speed reduce greater than yarn speed this moment.When advancing yarn speed and be lower than yarn speed, the amplitude of input increases, and control motor and rev up this moment, and storage yarn speed strengthens.This a reference value changes according to the difference of yarn; For example when sending white yarn, constant defeated yarn speed and tension value during the defeated yarn of corresponding line-transmitting wheel 3, its signal voltage is 2V; Storage during yarn when signal voltage maintenance present speed during for 2V; Control motor reduction of speed when hanging down with 2V, the control motor quickens when being higher than 2V, and adjusts motor speed accordingly through the scope of difference variation.Photoelectric sensor 2 constitutes best mode by three groups of photoelectric tubes; Can guarantee the metal spoke 31 of at least one group of photoelectric tube on can corresponding line-transmitting wheel; At least one group of photoelectric tube 32 places, gap on can corresponding line-transmitting wheel 3 guarantee can not omit, and photoelectric tube quantity is many again will to increase production cost.Will have following three kinds of signal arrangement modes when adopting three groups of photoelectric tube work: 1. the arrangement mode of three groups of signals is a little less than the two powers one; Two powers are the signals that reflect through metal spoke 31; Two groups of signal values are identical; Be the signal that reflects through the round plastic shading sleeve a little less than in the of one, have difference between two groups of strong and weak various signals; 2. the arrangement mode of three groups of signals is a little less than the last one two, and the last one is the signal that reflects through metal spoke 31, is the signal that reflects through the round plastic shading sleeve a little less than two, and two groups of signal values are identical, have difference between two groups of strong and weak various signals; 3. the arrangement mode of three groups of signals is that three groups of signal values are identical; And be weak signal value, the expression yarn blocks the gap 32 between metal spoke 31 and the adjacent metal spoke 31 fully, and signal is to be fired back by yarn; Yarn on the line-transmitting wheel has stored up and has expired at this moment, and motor stops automatically.Exist difference to change between two groups of strong and weak various signals in the above-mentioned the 1st and the 2nd in the situation; And the difference during electric motor starting is can be predefined; Therefore when difference arrived preset value, motor started automatically, promptly detected the yarn amount through photoelectric sensor 2 and how much controlled motor switch.

Claims

1. yarn storage device; Comprise motor, housing and main shaft and line-transmitting wheel mounted thereto, yarn ring and tension ring are pressed in socket on the line-transmitting wheel, and main shaft is in the circle centre position of line-transmitting wheel; Motor drives line-transmitting wheel through main shaft and rotates; It is characterized in that also comprising photoelectric sensor and shading sleeve, photoelectric sensor is in the outside of line-transmitting wheel, and shading sleeve is enclosed within and prevents on the main shaft that it is reflective; Said line-transmitting wheel is provided with metal spoke regularly arranged and that width is identical, is provided with the identical gap of width between the adjacent metal spoke; Said photoelectric sensor comprises two groups of photoelectric tubes at least, the gap location on the metal spoke on the corresponding line-transmitting wheel of at least one group of photoelectric tube wherein, at least one group of corresponding line-transmitting wheel of photoelectric tube.

2. a kind of yarn storage device according to claim 1; It is characterized in that said shading sleeve is the round plastic shading sleeve; Round plastic shading sleeve and line-transmitting wheel are center of circle concentric arrangement with the main shaft; The distance of all photoelectric tubes to shading sleeve lateral wall is identical, and the distance of all photoelectric tubes to metal spoke lateral wall is identical.

3. a kind of yarn storage device according to claim 1 is characterized in that said photoelectric sensor is made up of three groups of photoelectric tubes; Said metal spoke is identical with the width in gap, and photoelectric sensor is installed on the housing and the position is in the outside that photoelectric sensor is in line-transmitting wheel.