JPH062242A - Breaking regulator for warp yarn winding drum of rush loom - Google Patents

Abstract

PURPOSE:To always regulate the warp yarn tenseness in a prescribed state, improve the quality of a woven fabric and save energy by automatically regulating the rotating and braking of a warp yarn winding drum through a rotation braking part with the roller displacement of a warp yarn tenseness sensor. CONSTITUTION:Rushes alternately fed from right and left rush dividers into a row of warp yarns 14 delivered in a tensed state are woven into the row in a rush weaving part 16 with a warp yarn winding drum of a rush loom. In the process, when the diameter of a winding drum 12 is gradually reduced with the advance of the weaving and the length of delivered warp yarns is reduced to raise the tenseness of warp yarns 14, a roller 64 of a tenseness sensor 24 arranged on the front surface side of the warp yarns 14 is pushed up to turn ON a proximity switch 58 and drive a motor 48 of a brake regulating mechanism 22. A screw metal 40 is transferred in the direction of an arrow by the driving with the motor 48 to loosen the urging force of a spring 34 in a rotation braking part 20. Thereby, the braking force for a braking wheel 28 is reduced to increase the rotational frequency of the winding drum 12 and automatically return the tenseness of the warp yarns 14 to the original state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a braking and adjusting device for a warp winding drum, which feeds the warp wound on a winding drum to a weed portion in a weed loom.

[0002]

2. Description of the Related Art Conventionally, in a weed loom, a warp winding drum is pivotally supported at an upper position on the back surface of the loom, and a predetermined number of warp threads wound on the winding drum are stretched from the upper surface of the loom to the weave portion. The weeds to be separated are alternately sent from the weed dividers on both sides of the weaving machine into the warp that is fed to the weaving section in conjunction with the weeding operation of weeds, and weaves broths such as tatami mats and flower buds. . The warp yarns need to be fed out under a certain tension, and for this reason, the rotation braking portions provided at both ends of the rotation shaft of the winding drum apply braking to the rotation of the winding drum to tighten the ground of the weed weave portion. The warp yarns are drawn in a predetermined tension state by pulling each warp yarn by operation and braking and rotating the winding drum. However, the diameter of the warp thread wound around the take-up drum gradually decreases as weaving in the weed weaving section progresses, and the length of the warp thread that is fed out for each ground fastening operation becomes shorter. The broth gradually becomes clogged with turf and cannot obtain a uniform product, the quality of the broth is deteriorated, and the tension of the warp threads is gradually increased to cut. In order to prevent clogging of the rush and cutting of the warp thread, the operator can gradually reduce the braking force of the winding drum manually while checking the broth and the warp thread being woven by the operator, and always feed the warp thread. Adjusted to the specified length.

[0003]

However, in the braking adjustment of the take-up drum, the operator cannot move away from the grass weaving machine in order to check the weaving condition, and manual adjustment is troublesome and troublesome. In addition, there is a problem in that the adjustment work with high precision cannot be performed because of manual work, and the quality of the woven product is deteriorated due to poor braking adjustment.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to automatically detect the degree of tension of the warp yarn fed from the winding drum while automatically rotating the rotation braking portion of the winding drum. By automatically adjusting, the operator does not need to check the weaving condition of the weed loom, the time and effort for braking adjustment of the take-up drum can be saved, and consistently high quality products can be obtained. An object of the present invention is to provide a brake adjusting device for a pickup drum.

[0005]

In order to achieve the above object, the present invention relates to a weed loom 18 in which the warp yarns 14 and the weeds 80 are weaved by a weaving weaving portion 16 that draws out the warp yarns 14 from a winding drum 12 in a tensioned state. A rotation braking unit 20 for braking the rotation of the winding drum 12 and a braking adjustment mechanism 2 for adjusting the braking force of the rotation braking unit 20 in cooperation with the rotation braking unit 20.
2 is provided on the surface side of the unwound warp yarn 14, and a tension degree detector 24 for displacing the position according to the tension state is provided, and corresponds to the displacement of the tension degree detector 24. It comprises a braking adjusting device 10 for a warp winding drum of a weaving loom which adjusts the braking force of the rotary braking portion 20 while interlocking the braking adjusting mechanism 22.

[0006]

In the braking adjusting device for the warp yarn winding drum of the weed loom according to the present invention, the tension detector can be vertically displaced on the surface side of the predetermined number of warp yarns fed from the winding drum to the weed weaving portion. It has been loaded. In the normal state, the tension detector is in a state where the warp threads are pushed down, and in this state, the broth is woven, and the tension detection detection is performed when the warp thread feeding width gradually becomes shorter and the warp thread tension becomes higher. The container is pushed up by the warp thread and the braking adjustment mechanism operates. By the operation of this braking adjustment mechanism, the rotation braking part of the winding drum linked to the braking adjustment mechanism works in conjunction to reduce the braking force on the winding drum, the rotational speed of the winding drum rises slightly, and The payout length is extended and the warp yarn tension state returns to the original state.
When the tension is restored, the tension detector that has been pushed up descends and the braking adjustment mechanism stops. As described above, as the tension of the warp yarn fed from the winding drum increases, the tension detector can repeatedly operate to automatically reduce the braking force of the rotary braking unit of the winding drum, thereby allowing the warp yarn to be woven. It is possible to obtain a high-quality product by feeding out a certain length necessary for operation, and the operator does not need to confirm the weaving condition, and the labor of braking adjustment can be saved.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 5 show a braking adjustment device 10 for a warp winding drum according to an embodiment of the present invention. As is apparent from the drawing, the braking adjustment device 10 for a warp winding drum is a weaving loom 18 in which the warp yarn 14 and the hay are weaved by a weeding weaving section 16 that draws out the warp yarn 14 from the winding drum 12 in a tensioned state. A rotation braking unit 20 for braking the rotation of the rotation member 12 and a braking adjustment mechanism 22 that adjusts the braking in cooperation with the rotation braking unit 20 are provided. A tension detector 24 for displacing the position in accordance with the above is provided, and the braking of the rotary braking unit 20 is adjusted while the braking adjustment mechanism 22 is linked in correspondence with the displacement of the tension detector 24. It is a thing. As a result, the warp yarns 14 are sequentially fed out from the winding drum 12 in conjunction with the weaving operation of the rush weaving machine 20, and when the payout width of the fed warp yarns 14 is gradually shortened and the tension of the warp yarns 14 becomes high, The tension detector 24 senses this tension state and the braking adjustment mechanism 22 is activated to brake the winding drum 12.
The braking force is reduced to increase the feeding length of the warp yarn 14 and maintain an appropriate degree of tension. A feature of the present invention is that the tension of the warp yarn 24 is automatically detected by the tension detector 24, whereby the braking adjustment mechanism 22 and the rotary braking unit 20 are operated in an interlocking manner. It is possible to obtain a high quality product without clogging the broth during weaving while properly maintaining the tension.
The operator does not need to check the weaving state, and the labor of braking adjustment can be saved.

As shown in FIGS. 1, 4 and 5, the take-up drum 12 is such that both ends of a rotary shaft 26 are attached to and detached from bearings 22, 22 projecting from both sides of the upper portion of the back surface of the weaving loom 20. Freely supported. For example, about 135 warp threads 14 each having a length of about 400 folds are wound around the winding drum 12 so as to be fed out at an interval of about 1 cm, and the diameter at this time is, for example, about It is about 35 cm. The rotation braking portions 20 are provided at both ends of the rotary shaft 26 of the winding drum 12. The braking parts 20, 20 are
6, the braking wheels 28, 28 fixed to both ends of the rotary shaft 26 at the outer positions of the bearings 22, 22, and the bearings 22, 22.
Of the brake band 30, 30 having one end fixed to the outer side surface of the brake wheel 28, 28 and an operating lever 32 having one end connected to the other end of the brake band 30, 30 pivotally attached to the bearings 22, 22. , 32, and the operating lever 32,
One end of urging springs 34, 34 for urging the operating levers 32, 32 to brake the braking wheels 28, 28 by the braking bands 30, 30 is connected to the upper end of 32.
The biasing springs 34, 34 actuate the operating levers 32, 32.
By energizing, the braking bands 30 and 30 come into close contact with the braking wheels 28 and 28, and the winding drum 12 is braked.

As shown in FIGS. 1 and 2, the braking adjustment mechanism 2 is provided.
2 is provided above the rush weaving section 16 on the front side of the weed loom 12 so as to project from the interlocking shaft 38 rotatably supported in the lateral frame 36 that is laid in both directions and the upper positions of both side surfaces of the weed loom 18. And a pair of bearings 40, 40, and screw shafts 42, 42 pivotally supported by the pair of bearings 40, 40, and screw metals 44, 44 screwed to the screw shafts 42, 42.
Both ends of the shaft and the ends of the screw shafts 42, 42 are interlocked by bevel gear interlocking parts 46, 46 meshing with each other. The left and right screw shafts 42, 42 that are interlocked with each other via the interlocking shaft 38 and the bevel gear interlocking parts 46, 46 rotate in opposite directions, but the screw metals 42, 42 are provided with reverse screws.
4, 44 are moved in the same direction. As shown in FIGS. 2 and 4, a motor 48 is installed below the one screw shaft 42, and the rotation shaft of the motor 48 and the end of the screw shaft 42 are interlocked by a spur gear interlocking part 50. ing. The screw metal 4 screwed to the screw shafts 42 of the braking adjustment mechanism 22.
The other end portions of the left and right biasing springs 34, 34 of the rotation braking portion 20 are connected to the second and second screw portions 42, 42, and the one screw shaft 4
Limit switches 52, 52 for detecting the screw metal 44 and stopping the motor 48 are fixed to the bearings 40, 40 on the second side.

As shown in FIGS. 1, 2 and 3, the tension sensor 24 is pivotally attached to the upper surface of the weed loom 18 at a position below the substantially central portion of the lateral frame 36 of the braking adjustment mechanism 22. The tension sensing portion 54 mounted on the upper surface of the plurality of warp threads 14
And a switch operating lever 56 pivotally supported on the side surface of the tension sensing portion 54, and a proximity switch 58 that senses the switch operating lever 56 to turn the motor 48 of the braking adjustment mechanism 22 on and off. ing. The tension sensing portion 54 is provided with a frame body 62 pivotally mounted on supporting plates 60, 60 projectingly provided on the upper surface of the weeding loom 18, and an end surface of the frame body 62 which is pivotally supported and contacts the upper surface of the warp yarn 14. Rolled roller 64
And a downwardly urging spring 68 is connected to a projecting rod 66 projecting above the weave portion 16 from the frame 62. The elastic force of the biasing spring 68 causes the roller 64 to lightly press the warp yarn 14. The switch actuating lever 56 has an end portion pivotally attached to a side surface of one support plate 60, and a lower surface of a V-shaped portion bent to an intermediate position thereof has a frame 62.
It is received by a shaft 70 protruding from the side surface of the. The proximity switch 58 is fixed to the lateral frame 36 so as to face the end of the switch operating lever 56. Winding drum 1
2 The warp yarn 14 delivered to the weeding portion 16 is delivered while contacting the roller 64 at the end of the frame 62 at the position of the tension sensor 24, and when the tension of the warp yarn 14 increases, 62 is pushed upward, the proximity switch 58 is turned on by the switch operating lever 56, and the motor 48 of the braking adjustment mechanism 22 is rotated and the operating lever 3 of the rotary braking unit 20 is rotated.
The braking force is reduced by weakening the urging force of 2, 32,
The tension of is automatically restored to the original state.

Next, the operation of the braking adjusting device 10 for the warp winding drum according to the embodiment of the present invention will be described. As shown in FIG. 6 and FIG. 7, in the weed loom 18, the weed weaving section 16 including the weed frame 72, the reed rod 74, the ground fastening rod 76 and the like is installed on the front side thereof, and is detachable at the upper rear position. The weaving unit 7 installed on both sides of the weed loom 18 by stretching the warp yarn 14 drawn out from the winding drum 14 supported by the
The weeds 80 are alternately sent from Nos. 8 and 78 to weave broths 82 such as tatami mats and flower buds. When the braking adjusting device 10 for a warp winding drum of the present invention is installed in the weaving loom 18, a roller 64 which is axially supported by the frame 62 of the tension detector 24 is mounted on the surface side of the warp yarn 14. The elasticity of the bias spring 68 is adjusted appropriately. Further, the braking adjustment mechanism 22
The screw metal 44, 44 screwed to the screw shafts 42, 42 while the motor 48 of FIG.
To the side opposite to the take-up drum 12 to rotate the braking unit 2
The tension springs 34, 34 of 0, 20 are tensioned, and the braking load is applied to the braking wheels 28, 28 by the braking bands 30, 30.
The take-up drum 1 in synchronization with the weaving operation of the weeding section 16
Adjust so that 2 is braked.

Then, the weed weave portion 16 is operated to move the broth 8
In synchronism with the weaving operation of No. 2, the winding drum 12 is rotated while being pulled by the warp yarns 14 and the weave portion 16 by a predetermined length. When the diameter of the wound warp yarn 14 is gradually reduced and the feeding length is shortened, and the tension of the warp yarn 14 is increased, the roller 64 of the tension detection detector 24 is pushed up by the warp yarn 14 and the frame 62 Rises, the end of the switch operating lever 56 rises in the direction of the arrow in FIG.
N. When the proximity switch 58 is turned on, the motor 48 of the braking adjustment mechanism 22 is driven to drive the screw shafts 42, 42.
Is rotationally interlocked by the interlocking shaft 38, and the screw metals 44, 44 screwed to the screw shafts 42, 42 gradually move in the arrow direction of FIG.

By the movement of the screw metals 44, 44, the biasing spring 3 of the rotation braking portions 20, 20 of the winding drum 12 is moved.
The elastic forces of 4, 34 are relaxed, and the braking force of the braking bands 30, 30 on the braking wheels 28, 28 is reduced. Due to the decrease in the braking force, the rotation speed of the winding drum 12 is slightly increased, the length of the warp to be fed is extended, and the tension of the warp 14 is returned to the original state. By returning to this tension,
The tension detector 24 that has been pushed up descends, the switch operating lever 56 separates from the proximity switch 58, the proximity switch 58 turns off, and the motor 48 of the braking adjustment mechanism 22 stops. As described above, as the tension of the warp yarn 14 fed from the winding drum 12 increases, the tension detector 24 repeatedly operates to automatically reduce the braking force of the rotation braking unit 20 of the winding drum 12. As a result, the warp yarns 14 are fed out for a certain length necessary for weaving operation, the tension is not extremely increased, and the broth to be woven becomes a high quality product without clogging. Since the rotation braking of the take-up drum 12 can be automatically adjusted, it is not necessary to constantly check the weaving state, and the labor of the operator can be saved. The braking adjustment device for the take-up drum according to the present invention is not limited to the above-mentioned embodiment, and any improvement or change may be made within the technical scope described in the claims of the present invention. Therefore, it is possible to achieve the intended purpose in the weaving operation of the broth.

[0014]

As described above, according to the braking adjusting device for the warp yarn winding drum of the weed loom according to the first aspect of the present invention, the warp yarns are taken out from the winding drum in a tension state and the warp yarns and the weeds are woven in the weed portion. The weed loom includes a rotation braking unit for braking the rotation of the winding drum, and a braking adjustment mechanism that adjusts the braking force of the rotation braking unit in cooperation with the rotation braking unit. Is provided with a tension degree detector for displacing the position according to the tension state, and adjusts the braking force of the rotary braking unit while interlocking the braking adjustment mechanism corresponding to the displacement of the tension degree detector. By doing so, it is possible to automate the rotation braking of the winding drum, the operator does not need to check the weaving condition of the weed loom, the labor of braking adjustment can be saved, and at the same time a high quality product can be obtained. Become.

[Brief description of drawings]

FIG. 1 is a plan view of a braking adjustment device for a warp winding drum of a weed loom according to an embodiment of the present invention.

2 is a front view of a braking adjustment device for the warp winding drum of FIG. 1. FIG.

FIG. 3 is an enlarged perspective view of a tension detector.

FIG. 4 is a partial left side view of a braking adjustment device for a warp winding drum.

FIG. 5 is a partial right side view of a braking adjustment device for a warp winding drum.

FIG. 6 is a front view of a grass loom in which a braking adjustment device for a warp winding drum is desired to be installed.

FIG. 7 is a plan view of the rush weaving machine.

FIG. 8 is a right side view of the rush weaving machine.

FIG. 9 is a left side view of the rush weaving machine.

[Explanation of sign]

 10 Brake adjusting device for warp winding drum of Igusa loom 12 Winding drum 14 Warp 16 Igusa weaving unit 18 Igusa weaving machine 20 Rotation braking unit 22 Brake adjusting mechanism 24 Tension detector 58 Proximity switch 80 Igusa 82 Fuyo

Claims (1)

[Claims] 1. A weaving loom in which warp yarns are weaved from a winding drum in a tensioned state and weaving wefts and weeds in a weaving weaving unit, and a rotation braking unit for braking the rotation of the winding drum and a linkage with the rotation braking unit. And a braking adjustment mechanism for adjusting the braking force, and a tension detector for displacing the position in accordance with the tension state is provided on the surface side of the warp to be fed, and the tension A braking adjustment device for a warp winding drum of a weaving loom, which adjusts the braking force of a rotary braking unit while interlocking a braking adjustment mechanism according to the displacement of the degree detector.