KR20100008926A - Tensioning device for knitting machine - Google Patents

Abstract

PURPOSE: A tensioning device for a knitting machine is provided to offer convenience by preventing foreign materials from piling up, and to adjust conveniently the tension which is applied to yarns by a disk by adjusting a location of a magnet. CONSTITUTION: A tensioning device for a knitting machine includes a holder main body(2), a central axis(3), a pair of disks(4), an elastic adjusting member(5), a stopper(8), a detector(7), and a detecting spring(6). The holder body has a lower introduction eyelet(2a), an in-between introduction eyelet(2b), and an upper introduction eyelet(2c). The holder main body passes yarns supplied from a yarn supplying reel(1) through the lower, the in-between, and the upper introduction eyelets. The disk is equipped on a vertical frame on the central axis.

Description

Tension Adding Device for Knitting Machines {TENSIONING DEVICE FOR KNITTING MACHINE}

The present invention provides a disk for rotating a thread wound on a thread feeding reel by using a device for feeding and feeding the thread with a constant tension to a yarn manufactured in a knitting machine, a weaving machine, and an apparatus for manufacturing and processing a thread. The present invention relates to a tension adding device for a knitting machine that supplies a constant tension to another thread supply reel or a knitting machine.

In general, in order to weave a fabric having a certain level of smoothness using a knitting machine or the like, it is necessary to supply the thread with a constant tension to the thread supply reel that knits the fabric, as well as another thread with foreign matter such as dust on the thread. It shall be prevented from feeding to the supply reel.

Conventional yarn supply apparatus mainly used a method of forming the tension of the yarn using a variety of disk, in the domestic patent application 10-2002-0067433 the inventors of the present invention already provides a yarn supply device to add tension using a spring It has been filed. As will be described later, in the case of adding a tension to the yarn by using a spring, there are various disadvantages, the present invention has been applied to improve the disadvantages.

The conventional thread supply apparatus disclosed in Korean Patent Application No. 10-2002-0067433 uses a method of pressurizing by a spring mainly in applying tension to the thread, and the thread is provided on the central axis provided between the middle and lower inlet eyelets. By adopting the method of passing through the hole, the disk does not rotate well, and the paraffin and dust on the thread accumulate on the disk itself, which makes it difficult to give a constant tension to the thread. There was a problem that it is difficult to apply a constant pressure.

When foreign matters such as dust accumulate, the work must be repeated periodically to remove the dust accumulated between the springs, there is a problem that also removes the dust accumulated between both disks. This is not only cumbersome, but also reduces the performance and efficiency of the machine, and the disadvantages of time loss and extended delivery date are generated because the running knitting machine must be stopped when performing the work of removing the accumulated dust.

The present invention uses the force of a magnet instead of a spring and does not pass the thread through a hole provided on the central axis with the disk, but instead of a thin and thin central axis, in any of the left and right directions of the axis within the disk. By allowing the seal to pass, a method of rotating the disk by applying a rotational force to the disk in a predetermined direction is used.

As the disc rotates, dirt will not accumulate between the discs and there is no need to periodically stop the machine and clean the discs.

In addition, the disk itself and the magnets are not provided in a manner that makes the disk itself, but a pair of disks and magnets are provided in order, the magnet pushes the two disks in one direction, and as a result the disks are brought into contact with each other by tension Use the method of adding Thus, by adjusting the repulsive force by adjusting the distance between the pair of disk and the magnet on the central axis, it is possible to control the tension applied to the thread as a result.

A more detailed description of the invention will be described with reference to the drawings in the following examples.

The present invention can provide a tension adding device for a knitting machine to supply a thread with a constant tension. In addition, in order to solve the above problems, instead of the spring pressing method which is a structure in which dust is well accumulated, it provides a tensioning device for a knitting machine that is operated by applying a tension to the yarn by pushing the disk in one direction using magnetic repulsive force. can do.

As the thread passes, the disk can be rotated in a certain direction to provide a tensioning device for a knitting machine in which dust does not accumulate between the disks due to the friction between the disks. By adjusting the repulsive force, it is possible to provide a tensioning device for the knitting machine that can easily adjust the tension applied to the disc.

Hereinafter, a tension adding device according to an embodiment of the present invention will be described with reference to the drawings.

1 is a perspective view of a tension adding device according to an embodiment of the present invention.

The tensioning device for the knitting machine according to the embodiment of the present invention is a holder body composed of a lower introduction eyelet 2a, an intermediate introduction eyelet 2b, and an upper introduction eyelet 2c for guiding the thread from the thread supply reel 1. It is composed around (2). A central axis 3 positioned on the center of the vertical axis formed by the vertical frame 2 'of the holder body 2, that is, between the lower and middle introduction eyelets 2a and 2b and extending perpendicular to the vertical frame 2'. ) Is further provided. The lower, middle and upper introduction eyelets 2a, 2b and 2c are parallel to each other and extend parallel to the central axis 3.

Further, in order to give a constant tension to the thread passing through the lower introduction eyelet 2a, the middle introduction eyelet 2b, and the upper introduction eyelet 2c in order, the elastic control member having a magnet located on the central axis 3 (5) and a pair of disks (4). The elastic adjustment member 5 is located at the distal end portion opposite to the side where the vertical frame 2 'on the central axis 3 is provided, on the contrary, the pair of disks 4 is the side on which the vertical frame 2' is provided. It is located at the distal end.

The central shaft 3 is provided at the center of the magnet 5 'and the pair of disks 4 provided in the elastic control member 5 and located near the elastic control member 5 side. The annular magnets 4 'having a hollow on the outer rim of the passing hole are manufactured to have the same poles, and the elastic control members 5 are attached to the disk 4 by the same poles. Force is applied in the direction in which the vertical frame 2 'is provided. By the repulsive force exerted on the disk 4, the pair of disks 4 are forced together on the central axis 3 in the direction opposite to the elastic control member 5. Therefore, the pair of disks 4 are brought into close contact with each other, which makes it possible to apply a constant tension to the thread passing between the pair of disks (4).

It is also provided with a sensing spring (6) for contacting the thread passing between the middle and upper introduction eyelets (2b, 2c) to detect that the thread is short-circuited, and receives a stop signal by the sensing spring (6) It further comprises a detector (7) for transmitting a stop signal to the knitting machine.

Since the pair of disks rotate in a constant direction (to be described later), dust does not accumulate on the disks, so that operations such as stopping the machine operation and wiping the dust manually manually are unnecessary, which reduces work time and improves production efficiency. Increases. More advanced method is also used to remove dust from the disk by injecting air at a constant pressure in the air cylinder, which is not appropriate because of the high cost, such as a separate installation cost. Therefore, by using the rotation of the disk there is no need for a separate dust removal air cylinder device.

In addition, it does not use the method of pressurizing the disk with the spring, so it is not necessary to take measures according to the change of the elastic force of the spring when it is used for a long time, and there is a problem of applying a constant tension to the thread due to the accumulation of dust or paraffin due to the thread itself. Does not occur.

Figure 2 is a perspective view of the tension adding device according to an embodiment of the present invention from the rear.

A sensing spring 6 pivotally connected to one side of the detector 7 extends, and the sensing spring 6 has a "-" shape. In the normal operating state, the sensing spring 6 is inclined at an angle to the vertical frame 2 'of the holder body 2, and passes between the upper inlet eyelet 2c and the middle inlet eyelet 2b. I am leaning on a thread to say. Since the thread has a constant tension, it can support the weight of the sensing spring 6, so that the sensing spring 6 is leaned on the thread and no longer falls vertically downward.

In the abnormal operating state, i.e., when the seal is shorted in the middle, the seal used to support the sensing spring 6 can no longer support the sensing spring 6, so that the vertical frame 2 'of the holder body 2 And it goes down vertically at a larger angle than the normal state, and if it goes down a certain angle inside the detector (7) detects this and transmits a constant signal to the knitting machine.

The signal may be an electronic signal and may be a physical signal that physically applies a stimulus to a receiver that senses a stimulus inside the knitting machine.

3 is an enlarged view of a portion of the central axis 3 of the tension adding device according to the embodiment of the present invention.

As described above, the elastic adjusting member 5 having magnetic properties is provided at the distal end portion of the holder main body 2 of the central shaft 3 opposite to the side where the vertical frame 2 'is provided. A pair of disks 4 are provided in the direction of the vertical frame 2 'relatively, and the pair of disks 4 are in close contact with each other by the repulsive force between the elastic control member 5 and the disks 4, Tension is added to the thread passing between the pair of disks 4.

The material of the disk 4 is not limited to metal, and if the outer edge of the hole provided at the center of the disk 4 is provided with a magnet of the same pole as the elastic control member 5, the disk may be made of any material other than metal. (4) can be produced.

The elastic control member 5 is to adjust the distance to the disk 4 to adjust the strength of the repulsive force and consequently to adjust the tension applied to the thread. That is, when the elastic control member 5 is moved closer to the disk 4, the repulsive force becomes stronger so that the force of close contact between the disks 4 becomes larger, and a greater tension is applied to the thread. On the contrary, when the elastic control member 5 is moved away from the disk 4, the repulsive force is weakened, and eventually a weak tension is applied to the thread. The central shaft 3 itself is provided with a screw thread, and by rotating the elastic adjusting member 5 along the screw thread (rotational translation), the distance from the disk 4 can be easily and easily adjusted.

The tension adding device of the present invention can be commonly used not only for knitting machines but also for other processing machines using yarns, and the type and thickness of the yarns vary according to the products made among the same knitting machines, and accordingly, different tensions In addition, by adjusting the distance between the elastic control member 5 and the disk 4 provided in the tension adding device of the present invention can be easily added a suitable tension.

Therefore, the disk 4 itself is magnetic, and the method of applying tension by the attraction force attracting each other is not necessary to adjust the tension in the end, because the disk 4 is not able to adjust the attraction force to each other, it is necessary when the thickness of the thread is different The strength of the tension will also change, making it difficult to do normal knitting. In the case of the magnetic disk 4, in order to adjust the tension, it is necessary to adjust the frame itself with the disk 4 or to replace the disk 4 as necessary, and thus, in terms of cost or time. Inefficient.

In addition, compared with the conventional method of applying tension by the spring, because the dust itself, a lot of dust, residues and paraffin is accumulated in the spring itself, it is difficult to control the proper elasticity, the spring is also appropriate elasticity for the stretch or deformation This can cause problems.

In the case where the thread passes through the disk 4 at a predetermined speed or more, a hole is provided in the central axis 3 itself so that the thread passes through the center of the disk 4 in the disk 4 so as to pass through the disk. Unlike the conventional method, in which there is no rotation at all, in the tension adding device according to the embodiment of the present invention, the disk 4 is held between the disks 4 about the central axis 3 in the disks 4 where the threads are in close contact with each other. Since the center axis 3 bypasses the central axis 3 and is biased toward either of the left or the right side, a biasing force is generated and a rotational force is generated in one direction by friction between the seal and the disk 4, and the disk 4 itself rotates. Done.

The direction of rotation of the disk 4 is determined according to which direction the thread passes in the disk 4, and the rotational speed of the disk 4 is determined according to the passing speed of the thread and the material of the thread.

Due to the rotational effect of the disk 4, there is an effect of automatically removing the residue and dust accumulated in the disk 4 between the disks passing between the disks 4 while the operation continues. Therefore, an additional device such as an air cylinder used in the seal supply device according to the conventional method is unnecessary, and the work of stopping the machine first and removing the disk 4 for removal is also unnecessary, thereby increasing the efficiency in the work.

4 is an enlarged partial side view of the central axis 3 portion of the tension adding device according to the present invention.

A stopper 8 is provided at the opposite end of the elastic control member 5 on the central axis 3 to prevent the pair of disks 4 from being pushed beyond the stopper 8.

This prevents the disk from being pushed further so that the disk is held on the path through which the thread passes, allowing the thread to pass between the pair of disks.

Although the present invention has been described through the above-described embodiments, the present invention is not limited to the above-described embodiments, and those skilled in the art may facilitate various modifications and changes within the scope of the present invention. For example, the elasticity adjusting member 5 which adds tension by adjusting the degree of adhesion of the disk 4 with a magnetic force is replaced electronically to automatically adjust the appropriate tension by attaching a tension sensor to the thread. Could be

1 is a perspective view of a tension adding device according to an embodiment of the present invention.

Figure 2 is a perspective view of the tension adding device according to an embodiment of the present invention from the rear.

3 is an enlarged view of a portion of the central axis 3 of the tension adding device according to the embodiment of the present invention.

4 is an enlarged partial side view of the central axis 3 portion of the tension adding device according to the present invention.

Claims (3)

A lower introduction eyelet 2a, an intermediate introduction eyelet 2b, and an upper introduction eyelet 2c extending perpendicular to the vertical frame 2 'with respect to the vertical frame 2' and parallel to each other; A holder main body (2) which receives a thread from a supply reel (1) so that the thread passes through the lower, middle and upper introduction eyelets (2a, 2b, 2c) in sequence; Located between the center portion on the vertical axis formed by the vertical frame 2 'provided in the holder body 2, that is, between the lower and middle introduction eyelets 2a and 2b, and perpendicular to the vertical frame 2'. A central axis (3) extending in parallel with the introduction eyelets (2a, 2b, 2c); It is provided on the vertical frame (2 ') side on the central axis (3), a pair of passes through the thread in the disc 4 in the direction of the left and right of the center axis (3) to bypass Disk 4; The disk, which is provided on the opposite side of the disk 4 on the central axis 3, exerts a magnetic repulsive force on the pair of disks 4 to apply a force in the direction of the vertical frame 2 ', and receives the force. (4) is in close contact with each other to apply tension to the thread passing therebetween, by adjusting the distance to the disk (4) along the thread provided on the central axis (3) to adjust the repulsive force of the disk (4) Elastic adjustment member 5 for adjusting the degree of adhesion to adjust the tension; A stopper provided at the distal end side of the disk 4 on the central axis 3 to prevent the disk 4 from being pushed by the repulsive force so that the disk 4 is held on the path through which the thread passes. (8); A detector (7) attached to a rear surface of the vertical frame (2 ') in a direction in which the axis extends to transmit a stop signal to a knitting machine; And a sensing spring (6) pivotally connected from one side of the detector (7), extending in the form of an "a", and detecting a short circuit of the thread. 2. The disk according to claim 1, wherein the elastic control member (5) has a magnet (5 ') therein, and the disk (4) located close to the elastic control member (5) side of the pair of disks (4) is in the center. It is provided with an annular magnet (4 ') having a hollow on the outer edge of the hole through which the central axis (3) passes, The magnet 5 'and the magnet 4' are manufactured to have the same poles, so that the elastic control member 5 exerts a force in the direction in which the vertical frame 2 'is provided on the disk 4. The tension adding device for an editor. The tension adding device for an editor according to claim 2, wherein the disk (4) is made of metal.

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