CN2471758Y - Yarn feeder - Google Patents

Abstract

The utility model relates to a yarn-feeding device, comprising a motor and a yarn storage wheel which are arranged on two sides of the housing respectively, a tension ring for adjusting the tension when yarn is output, a yarn-output support, a yarn-feeding probe rod, a yarn-feeding damping element and an adjustment apparatus adjusting the amount of the yarn storage through an adjustable lever; meanwhile, the lower end of the front of the housing is designed to be an extension section flush to the lower end of a yarn-pressing ring. The utility model is characterized in that the operation of the yarn storage wheel is not affected by the motor weight and is fast to start and rapid in velocity, and the highest velocity of the yarn storage wheel can reach more than two thousand nine hundred r/min with the highest yarn-feeding velocity more than seven hundred and fifty m/min. The utility model not only satisfies the nonregular and intermittent yarn-feeding demand, avoids the shortages of yarn winding and gap formed between the yarn storage wheel and the housing, and ensures the normal operation of a loom, but also has the advantages of simple structure, economy and practicability.

Description

Yarn-feeding device

The utility model relates to yarn-feeding device, especially a kind ofly supplies yarn-feeding device irregular, intermittent yarn consumption.

Continuous development along with textile industry, increasing textile machine such as rapier loom, jacquard loom, footwear machine etc. must be equipped with all that supply is irregular, the yarn-feeding device of intermittent yarn consumption, with the demand of factors such as the braiding that adapts to the cloth cover floral designs and face tension difference to yarn feeding.What the yarn-feeding device of traditional Purely mechanical can't satisfy this type of loom send the yarn requirement, as Chinese patent publication number CN87100370A " the storage line and the thread supplying device of loom ", CN2122154U " storage type active yarn conveyor ", they are a kind of devices that rely on external force to drive yarn storage wheel, self do not have independently propulsion source, be only applicable to fixed length for yarn.Publication number CN85106977A " yarn storage and yarn feeding device " comprises one in order to the coiling yarn and can realize the gearing of frequency control, utilizes detecting element detection signal to be carried out the detector of fuzzy recognition spinning velocity.Though that this device can satisfy is irregular, the supply of intermittent yarn, its structure is very complicated, and frequency control is adopted in electrical control, and cost is very expensive, is difficult to popularization and application, lacks economy.The yarn-feeding device of popularizing is that motor is directly installed in the yarn storage wheel in the market, has increased the weight of yarn storage wheel, makes its starting slow, rotating speed slows down, and rotating speed of motor can only reach 1500 rev/mins, send yarn speed to be lower than 400 meters/minute, so that only being confined to low speed send yarn, and this is one of defective; In addition, because the design of the relative position between yarn inlet, housing and the yarn storage wheel is improper, make between yarn storage wheel and the housing and leave the slit, when yarn-feeding device turns round, yarn often takes place to be wrapped on the motor shaft by this slit, make the stifled resistance running of yarn-feeding device, loom has to stop, intact stifled resistance for clearance just can make loom continue to start running, so not only time-consuming but also effort behind the yarn on the axle.

The utility model improves at the defective of prior art, provides a kind of simple in structure, and not increasing cost, to improve the yarn-feeding device that send yarn speed again be first purpose; Provide a kind of simultaneously and avoid yarn to be wrapped on the motor shaft, guarantee that the yarn-feeding device of loom normal operation is second purpose.

Goal of the invention of the present utility model is realized by following technical proposals: yarn-feeding device, have one can with the fixing housing of loom, housing is provided with motor, yarn storage wheel by the motor-driven rotation, the pressure yarn ring of built-in bearing is installed on the housing and rotates synchronously with yarn storage wheel, the tension link that the adjusting yarn goes out yarn tension is sleeved on the yarn storage wheel, also be provided with the yarn support of taking the yarn porcelain eye out of on the housing, advance the yarn feeler lever and advance the yarn damping element, also be provided with the regulating mechanism of realizing storage yarn amount size adjustment by adjust bar in the housing, it is characterized in that described motor is fixed on housing one side, motor shaft stretches out from the housing opposite side, and yarn storage wheel is fixed on the motor shaft of housing opposite side.

There is an extension the positive lower end of described housing, and this extension is concordant with the lower end of pressing the yarn ring.

The utility model has at first improved the Position Design of motor and yarn storage wheel, make the running of yarn storage wheel not influenced by motor weight, so starting rapidly, rotating speed improves, maximum speed of revolution can reach 2900 rev/mins, send yarn speed can reach more than 750 meters/minute, that has satisfied irregular, intermittent yarn consumption send the yarn requirement; Secondly, adopt the housing extension and pressed the concordant technical scheme in yarn ring lower end, avoided forming the defective that the slit causes yarn to twine motor shaft between yarn storage wheel and the housing, overcome the stifled resistance of the yarn cleaning work of wasting time and energy, guaranteed the loom normal operation; This apparatus structure is simple, does not increase cost, has economy and practicality.

Description of drawings.

Fig. 1 is the utility model structural representation.

Fig. 2 is the upward view of Fig. 1.

Fig. 3 sheds storage yarn amount size adjustment mechanism behind the motor for Fig. 1.

Below in conjunction with above-mentioned accompanying drawing embodiment concrete structure of the present utility model being done one describes in detail.

Referring to Fig. 1-3, yarn-feeding device have one can with the fixing housing (1) of loom frame, housing one side is fixed a motor (3), motor adopts the phase asynchronous structure of internal rotor, external stator, specifically can use bolt on housing motor assembling back, or motor cover or motor casing and housing fused, and then the stator of fixed electrical machinery and rotor.Motor shaft stretches out from opposite side by housing, yarn storage wheel (10) is fixed on the motor shaft and is rotated by motor-driven, yarn storage wheel fixing on motor shaft can be passed through fixed cover or back-up ring, use bolt tightening again, also can directly use bolt tightening on motor shaft, motor drives the yarn storage wheel rotation by motor shaft and reaches the function that stores yarn.The pressure yarn ring (11) of built-in radial ball bearing is installed on the housing and rotates synchronously with yarn storage wheel, and pressing the radial ball bearing inner ring in the yarn ring is bearing support, presses the yarn ring just to be riveted on the bearing support, is used for the control apparatus switch.The tension link (12) that the adjusting yarn goes out yarn tension is sleeved on the yarn storage wheel, also be provided with the yarn support (14) of taking yarn porcelain eye (13) out of on the housing, advance yarn feeler lever (8) and advance the yarn damping element, advance that the yarn damping element comprises yarn withdrawal plate (4), advances yarn plate (5), yarn clip board (6), enter yarn porcelain eye (7), (9) or the like.

Simultaneously, be designed to extension (15) in the lower end in housing front, this extension is concordant with the lower end of pressing yarn ring (11), has eliminated the slit, is wrapped on the motor shaft and causes loom to have to shut down the trouble of cleaning yarn in order to avoid enter at storage yarn process yarn.

When yarn is stored on yarn storage wheel when a certain amount of, the yarn circle can promote to be installed in the pressure yarn ring on the housing, and the pressure yarn ring that is pushed is by the tension rail break contact, and yarn-feeding device just stops operating, and yarn storage wheel also stops to store up yarn.

Also be provided with the regulating mechanism of realizing storage yarn amount size adjustment in the housing, but this mechanism comprises the adjust bar (2) that is located at manual regulation on the housing, this adjust bar regulating block (19) interior with being located at housing links to each other, and regulating block can with the sliding tray of the fixing regulating block base (20) of housing in slippage, extension spring (18) is connected between tension rail (17) and the regulating block (19), and tension rail is simultaneously inconsistent with the contact of micro-switch (16).

When regulating yarn storage wheel storage yarn amount, can preset a pulling force on tension rail, an initial tension promptly is set, the thrust when initial tension twines with the yarn storage wheel yarn is relative, can guarantee certain storage yarn amount like this.Initial tensile force is provided by extension spring, by the rotation adjust bar, regulating block is slided in the regulating block base, and the slip of regulating block has realized the flexible of extension spring, thereby has changed the tension force of tension rail, has realized regulating the purpose of storage yarn amount size.

When loom has drawn work when requiring, the tension adjustment of the yarn of from yarn storage wheel, extracting out be by tension link more bring realization, can design many tension links, thereby the thickness of their muscle differs, the change of realization yarn yarn tension different in size.

When yarn is pumped to when a certain amount of, when the tension force of extension spring had surpassed the yarn on the yarn storage wheel and twines the thrust that is produced, tension rail is energized just, makes electric motor starting, drives the yarn storage wheel rotation, thereby has reached the purpose of storing up yarn once more.Move in circles like this, realized that the yarn-feeding device supply is irregular, the purpose of intermittent yarn feeding.

Claims (3)

1. yarn-feeding device, have one can with the fixing housing (1) of loom, housing is provided with motor (3), yarn storage wheel (10) by the motor-driven rotation, the pressure yarn ring (11) of built-in bearing is installed on the housing and rotates synchronously with yarn storage wheel, the tension link (12) that the adjusting yarn goes out yarn tension is sleeved on the yarn storage wheel, also be provided with the yarn support (14) of taking yarn porcelain eye (13) out of on the housing, advance yarn feeler lever (8) and advance the yarn damping element, also be provided with the regulating mechanism of realizing storage yarn amount size adjustment by adjust bar (2) in the housing, it is characterized in that described motor (3) is fixed on housing one side, motor shaft stretches out from the housing opposite side, and yarn storage wheel (10) is fixed on the motor shaft of housing opposite side.

2. yarn-feeding device as claimed in claim 1 is characterized in that there is an extension (15) the positive lower end of described housing (1), and this extension is concordant with the lower end of pressing yarn ring (11).

3. yarn-feeding device as claimed in claim 1, it is characterized in that described storage yarn amount size adjustment mechanism comprises the adjust bar (2) that is located on the housing, this adjust bar regulating block (19) interior with being located at housing links to each other, and regulating block can with the sliding tray of the fixing regulating block base (20) of housing in slippage, extension spring (18) is connected between tension rail (17) and the regulating block (19), and tension rail is simultaneously inconsistent with the contact of micro-switch (16).

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