CN113445195B - A yarn feeder with adjustable yarn feeding speed - Google Patents

Abstract

The invention discloses a yarn feeder with adjustable yarn feeding speed, which comprises a terminal screw, a bobbin, a driven wheel cover, a bottom plate, a driven wheel, a driving wheel, a mandrel, a coil spring, a friction plate, an insert and a locking screw ; One end of the mandrel is fixed on the base plate, and the other end is fixed with a terminal screw; the driving wheel is located inside the base plate and is rotatably mounted on the mandrel; the bobbin is connected to the mandrel in rotation; It is fixedly connected with the driven wheel cover; the driven wheel cover is located outside the driven wheel and is fixedly connected with the driven wheel; the driven wheel is rotated and installed on the mandrel; the coil spring is set inside the driven wheel, one end is fixedly connected with the driven wheel, and the other end is connected with the driving wheel The wheel is fixedly connected; several inserts are fixed on the bottom plate, and the inserts have internal threads; the end of the locking screw is provided with a friction plate; the locking screw is matched with the internal thread of the insert, and the friction plate at the end can contact the driving wheel . The invention can manually adjust the yarn feeding tension and yarn feeding speed.

Description

A yarn feeder with adjustable yarn feeding speed

technical field

The invention relates to the technical field of textiles, in particular to a yarn feeder with adjustable yarn feeding speed.

Background technique

Achieving good unwinding and yarn feeding of fiber bundles is the first step in the preparation of preforms, and continuous and stable yarn feeding is conducive to the formation and weaving of preforms. At present, there are many kinds of yarn feeders, which are often used in knitting equipment, and generally yarn feeders need to be equipped with motors and corresponding transmission mechanisms, which makes the structure of yarn feeders too complicated; the functions of traditional yarn feeders are mostly yarn storage and knot prevention. The stability of yarn feeding itself is not emphasized. The document with application number 201710741329.7 discloses an automatic yarn feeder, the driving device is a brushless DC motor with an outer rotor, and a rotating mover is set on the stator shaft, and the mover drives the yarn feeder to realize the yarn feeding function, but it does not consider The manual adjustment of the yarn feeding speed and the axial fixing of the yarn feeding drum are the first step in the yarn feeding tension control.

Contents of the invention

Aiming at the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a yarn feeder with adjustable yarn feeding speed.

The technical solution of the present invention to solve the above-mentioned technical problems is to provide a yarn feeder with adjustable yarn feeding speed, which is characterized in that the yarn feeder includes a terminal screw, a bobbin, a driven wheel cover, a bottom plate, a driven wheel, a driving Wheels, mandrels, coil springs, friction plates, inserts and locking screws;

One end of the mandrel is fixed on the base plate, and the other end is fixed with a terminal screw; the driving wheel is located inside the base plate and is rotatably mounted on the mandrel; the bobbin is connected to the mandrel in rotation; one end of the bobbin is limited by the terminal screw, and the other One end is fixedly connected with the driven wheel cover; the driven wheel cover is located outside the driven wheel and is fixedly connected with the driven wheel; the driven wheel is rotated and installed on the mandrel; the coil spring is arranged inside the driven wheel, one end is fixedly connected with the driven wheel, and the other end is connected with the driven wheel The driving wheel is fixedly connected; several inserts are fixed on the bottom plate, and the inserts are provided with internal threads; the end of the locking screw is provided with a friction plate; the locking screw is matched with the internal thread of the insert, and the friction plate at the end can be connected touch.

Compared with the prior art, the present invention has the beneficial effects of:

(1) The present invention manually controls the rotational speed of the driving wheel by controlling the screwing degree of the locking screw, and realizes manual adjustment of the yarn feeding tension and yarn feeding speed, without the need for a motor to control the yarn feeding.

(2) The present invention is simple in structure, light and convenient, and small in size, and belongs to a micro yarn feeder; it can be quickly assembled, has strong adaptability, strong operability, and strong adjustability; it is beneficial to stable and continuous actual production needs, and is suitable for carbon fiber, etc. Weaving of high performance fiber preforms.

Description of drawings

Fig. 1 is the front view of overall structure of the present invention;

Fig. 2 is the A-A direction sectional view of Fig. 1 of the present invention;

Fig. 3 is the front view of the overall structure after removing the spool, driven wheel cover and base plate of the present invention;

Fig. 4 is a partial perspective view of Fig. 3 of the present invention;

Fig. 5 is another partial perspective view of Fig. 3 of the present invention;

Figure 6 is a perspective view of the bobbin of the present invention;

Figure 7 is a perspective view of the driven wheel cover of the present invention;

Fig. 8 is another perspective view of the driven wheel cover of the present invention;

Fig. 9 is a perspective view of the driven wheel of the present invention;

Fig. 10 is the schematic diagram of coil spring of the present invention;

Fig. 11 is a perspective view of the driving wheel of the present invention.

In the figure, terminal screw 1, bobbin 2, driven wheel cover 3, bottom plate 4, driven wheel 5, driving wheel 6, fixing screw 7, mandrel 8, coil spring 9, friction felt 10, friction plate 11, insert 12 , locking screw 13 , groove 201 , first bump 301 , second bump 302 , slot 501 .

detailed description

Specific examples of the present invention are given below. The specific embodiments are only used to further describe the present invention in detail, and do not limit the protection scope of the claims of the present application.

The present invention provides a yarn feeder with adjustable yarn feeding speed (short for yarn feeder), which is characterized in that the yarn feeder includes a terminal screw 1, a bobbin 2, a driven wheel cover 3, a bottom plate 4, and a driven wheel 5 , driving wheel 6, fixing screw 7, mandrel 8, coil spring 9, friction plate 11, insert block 12 and locking screw 13;

One end of the mandrel 8 is fixed on the base plate 4 by a fixing screw 7, and the other end is fixed with a head screw 1; the driving wheel 6 is located inside the base plate 4 and is mounted on the mandrel 8 by bearing rotation; the bobbin 2 is nested in the core The outer side of the shaft 8 is rotationally connected with the mandrel 8 through the bushing; one end of the bobbin 2 is limited by the end screw 1, and the other end is fixedly connected with the driven wheel cover 3; the driven wheel cover 3 is located outside the driven wheel 5 and is connected with the driven wheel The driven wheel 5 is fixedly connected; the driven wheel 5 is mounted on the mandrel 8 through bearing rotation; the coil spring 9 is arranged inside the driven wheel 5, one end is fixedly connected with the driven wheel 5, and the other end is fixedly connected with the driving wheel 6; several inserts 12 Fixed on the bottom plate 4, the insert 12 has an internal thread; the end of the locking screw 13 is provided with a friction plate 11; the locking screw 13 passes through the insert 12 and cooperates with the internal thread of the insert 12, and the friction plate at the end 11 can contact with driving wheel 6.

Preferably, a groove 201 is formed on the outer surface of one end of the bobbin 2; a first protrusion 301 is formed on the outer surface of one end of the driven wheel cover 3; The detachable plug-in fixed connection of the cover 3 realizes the synchronous movement of the two.

Preferably, both ends of the bobbin 2 are circular plates, and a groove 201 is formed on the outer surface of one circular plate.

Preferably, the inner surface of the driven wheel cover 3 is circumferentially provided with a second protrusion 302; the outer surface of the driven wheel 5 is circumferentially provided with a slot 501; the second protrusion 302 cooperates with the slot 501 to realize the driven wheel cover 3 The detachable plug-in fixed connection with the driven wheel 5 realizes the synchronous movement of the two.

Preferably, the end of the friction plate 11 is provided with a friction felt 10 for contacting with the driving wheel 6 to increase the friction resistance.

Preferably, at least one insert 12 is uniformly fixed on the circumference of the bottom plate 4 .

Preferably, the fixing screw 7 is a flat head screw.

Principle of work and work flow of the present invention are:

Fix the yarn bobbin on the bobbin 2 and start the yarn feeding process. The external power drives the bobbin 2 to rotate, and the rotating speed of the bobbin 2 is the yarn feeding speed; Tighten the coil spring 9 to a certain extent until the coil spring 9 is no longer deformed, and the coil spring 9 stores elastic potential energy. At this time, the coil spring 9 drives the driving wheel 6 to rotate to continue the yarn feeding process.

When it is necessary to adjust the yarn feeding speed, turn the locking screw 13, so that the locking screw 13 moves along the internal thread of the insert 12 toward the direction close to the driving wheel 6, and then contacts the driving wheel 6; adjust the friction through the locking screw 13 The degree of contact between the felt 10 and the driving wheel 6 can then adjust the frictional resistance of the driving wheel 6; the rotating speed of the driving wheel 6 is affected by the frictional resistance and changes, and the driving wheel 6 controls the rotating speed of the driven wheel 5 through the coil spring 9, and the speed of the driven wheel 5 The rotating speed controls the rotating speed of the driven wheel cover 3, and the rotating speed of the driven wheel cover 3 controls the rotating speed of the spool 2, so that the yarn feeding speed can be adjusted.

What is not mentioned in the present invention is applicable to the prior art.

Claims (6)

1. A yarn feeder with adjustable yarn feeding speed, characterized in that the yarn feeder comprises a terminal screw, a spool, a driven wheel cover, a base plate, a driven wheel, a driving wheel, a mandrel, a coil spring, a friction plate, inserts and locking screws; One end of the mandrel is fixed on the base plate, and the other end is fixed with a terminal screw; the driving wheel is located inside the base plate and is rotatably mounted on the mandrel; the bobbin is connected to the mandrel in rotation; one end of the bobbin is limited by the terminal screw, and the other One end is fixedly connected with the driven wheel cover; the driven wheel cover is located outside the driven wheel and is fixedly connected with the driven wheel; the driven wheel is rotated and installed on the mandrel; the coil spring is arranged inside the driven wheel, one end is fixedly connected with the driven wheel, and the other end is connected with the driven wheel The driving wheel is fixedly connected; several inserts are fixed on the bottom plate, and the inserts are provided with internal threads; the end of the locking screw is provided with a friction plate; the locking screw is matched with the internal thread of the insert, and the friction plate at the end can be connected touch. 2. The yarn feeder with adjustable yarn feeding speed according to claim 1, wherein a groove is formed on the outer surface of one end of the bobbin; a first bump is formed on the outer surface of one end of the driven wheel cover; The groove cooperates with the first protrusion to realize the detachable fixed connection of the bobbin and the driven wheel cover and realize the synchronous movement of the two. 3. The yarn feeder with adjustable yarn feeding speed according to claim 1 or 2, characterized in that both ends of the bobbin are circular plates, and grooves are formed on the outer surface of the circular plates. 4. The yarn feeder with adjustable yarn feeding speed according to claim 1, characterized in that, the inner surface of the driven wheel cover is provided with a second protrusion; the outer surface of the driven wheel is provided with a slot; The second protrusion cooperates with the slot to realize the detachable fixed connection between the driven wheel cover and the driven wheel, and realize the synchronous movement of the two. 5. The yarn feeder with adjustable yarn feeding speed according to claim 1, characterized in that, the end of the friction plate is provided with a friction felt for contacting with the driving wheel to increase the friction resistance. 6. The yarn feeder with adjustable yarn feeding speed according to claim 1, characterized in that at least one insert is evenly fixed in the circumferential direction of the bottom plate.

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