KR100603241B1 - An apparatus for controlling tension of yarn - Google Patents

Abstract

The present invention relates to a yarn tension holding device, the holder 10 is built-in safety control device; Accumulation drum 20 which is rotated by the belt rotation drum (5) (7); A guide drum 30 fixed to the lower portion of the accumulation drum 20 and into which the ring 31 is inserted; It is fixed to one side of the holder 10, the first guide hole 41 formed at a position corresponding to the outer circumference of the accumulation drum 20, and the second guide formed at a lower position corresponding to the rotation axis of the guide drum 30 A guide bar 40 in which the ball 42 is formed; A first tension bar 50 hinged to a predetermined portion of the holder 10 to apply tension to the yarn introduced into the first guide hole 41; It is installed on the other side of the holder 10, a pair of guide plates 62, 64, and a pair of guide plates each having a third guide hole 61 and a fourth guide hole 63 facing each other spaced apart from each other, and a pair of guide plates ( 62) 64, including a light emitting portion 65 for generating light and a light receiving portion 66 for receiving light. An optical switch unit 60 for controlling the operation of the safety control device by a change in the luminous flux between the light emitting unit 65 and the light receiving unit 66; And a second tension bar 70 hinged to a predetermined portion of the holder 10 and rotated between the pair of guide plates 62 and 64.

Description

Yarn tension holding device {AN APPARATUS FOR CONTROLLING TENSION OF YARN}

1 is a side view of a yarn tensioning device according to the present invention,

2 is a view illustrating a state in which yarn is walked in the yarn tension holding device of FIG. 1;

<Explanation of symbols for main parts of the drawings>

5 ... first belt rotating drum 6 ... belt rotating drum selector switch

7 ... 2nd belt rotating drum 10 ... holder

10a ... Hanging bracket 10b ... Fixing bolt

11 ... subguide ball 12 ... subguide bar

13 ... Pulley 20 ... Accumulation Drum

30 ... guide drum 31 ... ring

40 ... guide bar 41 ... first guide hole

42 ... 2nd guide ball 50 ... 1st tension bar

51 ... first guider 60 ... optical switch unit

61 ... 3rd guide hole 62 ... Guide plate

63 ... 4th guide hole 64 ... Guide plate

65 ... light emitting part 66 ... light receiving part

70 ... 2nd tension bar 71 .. 2nd guider

The present invention relates to a yarn tension holding device capable of keeping the tension of the yarn fed to the loom constant.

Typically the yarns released from the bobbin should be fed to the loom while maintaining a constant tension. To this end, the loom is provided with a yarn tension holding device for maintaining the yarn at a constant tension.

In general, the yarn tensioning device is fixed to the loom, the holder with the built-in safety control device, the accumulation drum rotated to the motor, the guide bar for guiding the yarn supplied from the bobbin to the accumulation drum, and is supplied to the guide bar And a first tension bar for applying tension to the yarn, and a second tension bar for applying tension to the yarn supplied to the loom. By this structure, the yarns released from the bobbin are fed to the loom via the first tension bar-> guide bar-> accumulation drum-> second tension bar, while the accumulation drum is rotated at a constant speed and a certain amount of yarn is transferred to the loom. Make sure to supply as much as possible.

By the way, in the case of the tension holding device as described above, since the amount of yarn used is constant when the pattern of the fabric to be woven is constant, the yarn supplied to the weaving machine can maintain a constant tension, but when the pattern formed on the fabric is varied The tension of the yarn is changed by changing the amount of yarn used in the loom. Then, since the amount of yarn supplied by the rotation of the accumulation drum and the amount of yarn used in the weaving machine are different, there is a problem that the yarn is stretched or broken, and thus the loom is stopped to increase the defective rate.

The present invention has been made to solve the above problems, even if the amount of yarn used in the weaving machine to maintain a constant tension on the yarn to maintain the yarn tension device that can prevent the yarn stretch or break The purpose is to provide.

In order to achieve the above object, the yarn tension holding device according to the present invention,

A holder 10 having a safety control device (not shown); Accumulation drum 20 which is rotated by the belt rotation drum (5) (7); A guide drum 30 fixed to the lower portion of the accumulation drum 20 and into which a ring 31 is inserted; It is fixed to one side of the holder 10, the first guide hole 41 formed at a position corresponding to the outer circumference of the accumulation drum 20 and formed in a lower position corresponding to the rotation axis of the guide drum 30 A guide bar 40 having a second guide hole 42 formed therein; A first tension bar (50) hinged to a predetermined portion of the holder (10) to apply tension to the yarn introduced into the first guide hole (41); A pair of guide plates 62 and 64 formed on the other side of the holder 10 and having a third guide hole 61 and a fourth guide hole 63 facing each other and spaced apart from each other; and the pair of guides A light emitting portion 65 for generating light and a light receiving portion 66 for receiving light between the plates 62 and 64. An optical switch unit 60 for controlling the operation of the safety control device by a change in the luminous flux between the light emitting unit 65 and the light receiving unit 66; And a second tension bar 70 hinged to a predetermined portion of the holder 10 and rotated between the pair of guide plates 62 and 64.

In the present invention, the holder 10 via the sub-guide bar 12, the sub-guide ball 11 is formed so as to guide the yarn released from the bobbin (not shown), and through the sub-guide hole (11) It is preferable that a pulley 13 on which one yarn hangs is installed.

Hereinafter, a yarn tension holding device according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a side view of the yarn tension holding device according to the present invention, Figure 2 is a view showing a state in which the yarn is caught in the yarn tension holding device of FIG.

As shown, the yarn tension holding device according to the present invention, which is installed in the loom, the holder 10 has a safety control device (not shown) built therein to control the yarn tension holding device therein; An accumulation drum 20 which is rotated by the belt rotating drum 5 and 7; A guide drum 30 fixed to the lower portion of the accumulation drum 20 and into which the ring 31 is inserted, and fixed to one side of the holder 10 and formed at a position corresponding to the outer circumference of the accumulation drum 20. A guide bar 40 having a ball 41 and a second guide hole 42 formed at a lower position corresponding to the rotation axis of the guide drum 30; A first tension bar 50 hinged to a predetermined portion of the holder 10 to apply tension to the yarn introduced into the first guide hole 41; It is installed on the other side of the holder 10, a pair of guide plates 62, 64, and a pair of guide plates each having a third guide hole 61 and a fourth guide hole 63 facing each other spaced apart from each other, and a pair of guide plates ( A light emitting unit 65 for generating light and a light receiving unit 66 for receiving light are built in between 62 and 64, and a safety control device is formed by a change in the luminous flux between the light emitting unit 65 and the light receiving unit 66. An optical switch unit 60 for controlling the operation of the controller; And a second tension bar 70 hinged to a predetermined portion of the holder 10 and rotated between the pair of guide plates 62 and 64. The holder 10 has a subguide bar 12 having a subguide hole 11 formed thereon so as to guide the yarn unwound from a bobbin (not shown), and a yarn passing through the subguide hole 11. The pulley 13 is installed.

The sub guide holes 11, the first and second guide holes 41 and 42, and the third and fourth guide holes 61 and 63 are provided with a sub guide bar 12, a guide bar 40, and a guide. It is formed in an annular guider which is separately installed in each of the through holes of the plates 62 and 64.

In addition, separate cylindrical first and second guiders 51 and 71 are also provided at ends of the first tension bar 50 and the second tension bar 70.

In addition, the belt rotation drum selector switch 6 is the first belt rotation drum (5) or the second belt rotation drum (6) to be rotated by tightening the belt depending on whether the accumulation drum 20 to rotate at high speed or low speed When the switch is placed in the middle of the first belt rotation drum (5) and the second belt rotation drum (6) will not rotate any belt rotation drum.

Holder 10 has a hook bracket (10a) is formed on one side to be mounted to a loom or other predetermined portion, the fixing bolt (10b) is fastened to the hook bracket (10a). Therefore, the holder 10 can be fixed by tightening the fixing bolt 10b after the hook bracket 10a extends over a predetermined portion of the loom.

The ring 31 is adapted to be movable on the guide drum 30.                     

Next, the operation of the yarn tension holding device having the above structure will be described.

As shown in FIG. 2, the yarns released from the bobbin are subguide holes 11-> pulleys 13-> first guide 51 of the first tension bar 50-> first guide of the guide bar. After passing through the ball 41, it is wound around the accumulation drum 20, and thereafter, between the accumulation drum 20-> between the guide drum 30 and the ring 31-> the second guide ball 42 of the guide bar-> It is supplied to the loom via the third guide hole 61 of the guide plate-> the second guide 71 of the second tension bar 70-> the fourth guide hole 63. In this case, the first tension bar 50 and the second tension bar 70 apply tension to the yarn to maintain a taut state.

If the pattern of the fabric weaving in the weaving machine is varied, the tension of the yarn is changed by changing the amount of yarn used in the weaving machine. In this case, even though the accumulation drum 20 and the guide drum 30 are continuously rotated, since the yarn passing through the guide drum 30 passes through the second guide hole 42 formed on the rotation axis, the yarn is the second guide hole. Rotate around 42. Therefore, even if the amount of yarn used in the weaving machine changes, for example, when the supply of the yarn to the weaving machine is exaggerated due to exaggeration, the yarn via the ring 31 of the guide drum 30 is second guide hole 42. Since it is rotated about, the tension of the yarn becomes constant. In the conventional case, since the yarn is released from the rotating accumulation drum when the yarn supply to the weaving machine is stopped, the tension of the yarn is changed so that the yarn is stretched or broken.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

According to the yarn tension holding device according to the present invention having the above structure, since the yarn passing through the accumulation drum and the guide drum passes through the second guide hole at a position corresponding to the rotation axis, the pattern of the fabric to be woven is varied in the weaving machine. The tension of the yarn can be kept constant even if the amount of yarn is changed. Therefore, unlike the related art, the tension of the yarn can be prevented from sagging or breaking of the yarn, which is generated by changing the yarn, thereby preventing the loom from being stopped.

Claims (2)

Holder 10 with a built-in safety control device; Accumulation drum 20 which is rotated by the belt rotation drum (5) (7); A guide drum 30 fixed to the lower portion of the accumulation drum 20 and into which a ring 31 is inserted; It is fixed to one side of the holder 10, the first guide hole 41 formed at a position corresponding to the outer circumference of the accumulation drum 20 and formed in a lower position corresponding to the rotation axis of the guide drum 30 A guide bar 40 having a second guide hole 42 formed therein; A first tension bar (50) hinged to a predetermined portion of the holder (10) to apply tension to the yarn introduced into the first guide hole (41); A pair of guide plates 62 and 64 formed on the other side of the holder 10 and having a third guide hole 61 and a fourth guide hole 63 facing each other and spaced apart from each other; and the pair of guides A light emitting portion 65 for generating light and a light receiving portion 66 for receiving light between the plates 62 and 64. An optical switch unit 60 for controlling the operation of the safety control device by a change in the luminous flux between the light emitting unit 65 and the light receiving unit 66; And a second tension bar (70) hinged to a predetermined portion of the holder (10) and rotated between the pair of guide plates (62) (64). The method of claim 1, The holder 10 has a subguide bar 12 having a subguide hole 11 formed thereon so as to guide the yarn released from a bobbin (not shown), and a yarn through the subguide hole 11 to hang. Yarn tension holding device, characterized in that the pulley (13) is installed.

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