JPH0718544A - Brake controller of warp-winding drum of rush loom - Google Patents

Abstract

PURPOSE:To provide the warp-winding drum drake controller of a rush loom capable of automatically detecting the feeding width of warps corresponding the number of fed rushes, automatically braking a warp-winding drum so that the feeding width of the warps is controlled within the range of lengths specified in correspondence with the number of the fed rushes, and weaving the rushes into a uniform rush product free from the defective stitches of the rush. CONSTITUTION:This warp-winding drum brake controller of a rush loom is provided with a rush number detector 18 for detecting the number of rushes fed into the weaving section 14 of the rush loom, a fed warp width detector 20 for detecting the feeding width of the warps, a braking member 22 for braking the rotation of a warp-winding drum 12, and a braking member 76 for comparing the detection signal of the rush number detector with the detection signal of the fed warp width detector 20, driving the braking member and simultaneously controlling the width of the warps fed from warp-winding drum. The feeding width of the warps can automatically controlled within a specified range corresponding to the number of fed rushes, and a uniform rush woven product free from the defective stitches of the rushes can be produced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a braking adjusting device for a warp winding drum of a rush weaving machine for weaving rush products such as tatami mats and flower buds.

[0002]

2. Description of the Related Art Conventionally, in a rush weaving machine for weaving rush products such as tatami mats and flower buds, a warp winding drum is axially supported at an upper position on the back side of the looms and is wound on the warp winding drum. I want to separate a certain number of warp threads from the upper surface of the weed loom to the weaving section and separate them from the weft dividers on both sides of the weed loom between the warp threads sent to the weaving section in conjunction with the weaving operation of the weeds. While weaving grass alternately, weaving weed products such as tatami mats and flower buds. During weaving of this rush product, it is necessary to feed the warp yarns so that the feed width is constant in order to create uniform stitches of the rush, and for this reason, the warp yarns are provided at the braking portions provided at both ends of the warp winding drum. While braking the rotation of the take-up drum, the weeds are woven by the ground fastening operation of the weeds in the weaving section, and at the same time, each warp yarn is sent out in a tension state from the warp take-up drum.

However, the warp thread wound around the warp winding drum has a large diameter at the start of weaving, which is set as the weaving of the rush products in the weaving section progresses, but the diameter gradually decreases, Since the feed width of the warp yarn fed every time the fabric is fastened becomes short, it is not possible to obtain a grass product that is clogged with the rush products, and the tension of the warp yarns is gradually increased to cut. In order to prevent the clogging of the rush products and the cutting of the warp yarns, the operator always checks the tension of the warp yarns during weaving and the rush product to adjust the braking force of the warp winding drum while feeding the warp yarns. By adjusting the width to a specified length, weaves a non-uniform grass product without clogging of rush.

[0004]

However, the operator cannot leave the grass weaving machine in order to check the feed width of the warp threads and the clogging state of the rush, and the braking adjustment of the warp winding drum is complicated. However, if it is necessary to check the warp threads due to work, it may not be possible to adjust with high accuracy, clogging of the grass products may occur, and uneven grass products may not be woven. there were.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to automatically detect an excess or deficiency of the warp yarn feed width corresponding to a predetermined number of rushes to be fed, and to provide the warp yarn feed width. Rotational braking of the warp take-up drum can be automatically adjusted so that it fits within the specified length range corresponding to the number of rushes.
It is an object of the present invention to provide a braking adjustment device for a warp winding drum of a weed loom, which enables an operator to weave a uniform weave product without clogging without constantly checking the warp yarn and the hay product.

[0006]

In order to achieve the above object, the present invention is directed to the number of weeds 44 fed between the warp yarns 16 fed from the warp yarn winding drum 12 of the weed loom to the weaving section 14. Detecting unit 18 for detecting the number of weeds, a warp yarn feed width detecting unit 20 for detecting the feed width of the warp yarn 16, and a braking unit 22 for braking and adjusting the rotation of the warp yarn winding drum 12.
And a control signal for comparing the detection signal of the rush number detection unit 20 with a detection signal of the warp yarn feed width detection unit 20 to drive the braking unit 22 and adjust the warp yarn feed width from the warp yarn winding drum 12. 76, and a braking adjusting device 10 for a warp winding drum of a weaving loom.

The warp yarn feed width detecting section 10 is woven by the weaving section 14 and rotatably slidably urged against the moving rush 40 to interlock with the trochanter 46. A rotary moving body 4 that includes a rotating rotary body 48 that rotates and a sensing element 50 that senses the rotary moving body 48 and that interlocks with the trochanter.
8 may be detected by the sensing element 50 while detecting the warp feed width.

[0008]

The braking adjusting device for the warp yarn winding drum of the weed loom according to the present invention detects the number of weeds inserted into the warp yarns of the weaving section, and the feed width of the warp yarns. The detection signal from the warp yarn feed width detection unit is input to the control unit to detect the total number of weeds inserted into the warp yarns of the weaving unit with respect to the warp yarn feed width. Then, when the warp yarn feed width is insufficient with respect to the total number of inserted rushes, the braking portion of the warp yarn winding drum is relaxed, and when the warp yarn feeding width is excessive, the warp yarn winding drum braking portion is tensioned. To adjust automatically. As a result, the warp yarns can be fed to a predetermined width corresponding to the total number of rushes to be introduced, and weeds can be woven to form a non-uniform grass product with no clogging or see-through, and the commercial value of the rush product can be increased.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a schematic configuration diagram of an embodiment of a brake adjusting device 10 for a warp yarn winding drum of a weed loom according to the present invention, and FIG. 2 shows a warp yarn fed from the warp yarn winding drum. A moving circuit diagram of a herb product that has been orbited to and is woven is shown.

As is apparent from the drawing, the braking adjustment device 10 for the warp yarn winding drum of the weed loom includes a warp yarn winding drum 12 pivotally supported at an upper position on the back side of the weed loom from the front side of the weed loom. A rush number detecting unit 18 for detecting the number of rushes fed between the warp yarns 16 fed to the weaving unit 14, and a warp yarn feed width detecting unit 20 for detecting the feed width of the warp yarns 16.
And a braking unit 2 for braking and adjusting the rotation of the warp winding drum 12.
2 is provided.

As shown in FIGS. 1 and 2, both ends of a rotary shaft 24 of the warp winding drum 12 are rotatably supported by bearings 26, 26, and the rotary shaft 24 is located near the bearings 26, 26. Braking wheels 28, 28 of a braking unit 22 described later are fixed. The warp yarn 16 wound on the warp yarn winding drum 12 by a predetermined number is drawn out to the front side of the rush weaving machine and wound around the guide shaft 30, and the weaving unit 1 provided below the guide shaft 30.
4, it is stretched around the ground fastening rod 32, the idler roller 34, and the like, and is further wound around a holding and feeding roller 36 which is axially supported on the lower side of the warp winding drum 12.

As a result, the weed separator (not shown) installed on both sides of the weaving loom between the warp yarns 16 in the weaving section 14 including the unillustrated bushing rod, ramming frame, reed rod, etc. The rush will be thrown in by turns. The weeds that are alternately thrown into the weaving section 14 from the left and right are pushed down to the upper position of the ground fastening rod 32 by the reed rod, and, for example, at the time when a total of about four weeds gather, As shown in FIG. 2, the ground fastening rod 32 retreats upward as shown by the arrow A and moves forward to move the ground fastening rod 32.
Ground fastening claws 38 projecting from each warp thread 16 in the direction of the left-right mutual spacing are engaged with each warp thread 16. Further, while the ground fastening rod 32 descends and gathers about 4 rushes as shown by the arrow B while the ground fastening claws 38 fasten the ground, a tatami mat or a grass product 40 without a flower bud is woven. At the time of this ground fastening operation, each warp yarn 16 is pulled out and sent out from the warp yarn winding drum 12.

A feature of the present invention is that the number of weeds is detected to detect the number of weeds to be inserted into the warp of the weaving section, and the warp feed width detection unit to detect the feed width of the warp.
By comparing the feed width of the warp yarn with the total number of weeds to be put into the warp yarn of the weaving part at that time, when the feed width is insufficient, the braking portion of the warp winding drum is loosened, and the feed width is In the case of an excessive amount, the braking of the warp winding drum is tightened, and a uniform grass product without clogging of rush and transparent eyes can be woven while the warp is fed to a predetermined width corresponding to the total number of input rush.

As shown in FIGS. 1 and 3, the grass weeding number detecting unit 18 includes a sensing element 42 for detecting the ground fastening rod 32 when the ground fastening rod 32 moves to the lower limit position of the ground fastening operation. ing. The sensing element 42 is arranged close to the end face of the ground fastening rod 32, and is connected to a counter incorporated in the control unit described later. As the sensing element 42, for example, a proximity switch, a photo sensor, an ultrasonic sensor or the like is used. As a result, the grounding rod 32, which operates in one cycle of backward ascent and forward ascent, is sensed by the sensing element 42 and a sensing signal is transmitted to the counter of the controller. For example, in the embodiment, the counter is 20 because the four grasses 44 are clamped in one cycle of the clamp rod 32.
When recording a signal of 80 times, a total of 80 rushes were thrown into the weaving section 14, and when the counter recorded a signal of 30 times, it was detected that 120 rushes were thrown into the weaving section 14. It is set to be possible.

The rush number detecting unit 18 detects the ground fastening rod 32 for fastening the four rushes in one cycle to the sensing element 42.
It is also possible to detect the rush of two, six, eight, etc., which are thrown in by the grounding rod 32, while tightening the ground. Further, instead of sensing the operation of the ground fastening rod 32 by the sensing element 42, the number of rushes to be fed may be detected while the rush to be fed into the weaving section 14 is being sensed by a sensing mechanism provided on the lure rod or the like. .

As shown in FIGS. 1 and 4, in the warp feed width detecting section 20, the weed grass product 40 woven by the ground fastening operation by the ground fastening rod 32 has the idle roller 34 below the ground fastening rod 32. It is installed at a position where it moves while changing its direction from the nip feed roller 36. As shown in FIGS. 5, 6 and 7, the warp yarn feed width detection unit 20 is provided with a rotator 46 which is rotated by the idle roller 34 and is rotatably biased to the moving rush product 40. , A rotary moving body 48 that rotates in conjunction with the trochanter 46
And a sensing element 50 for sensing the rotary moving body 48.

As shown in FIGS. 5, 6 and 7, the warp yarn feed width detecting portion 20 is provided on the side portion of the idler roller 34 so as to project from the machine frame 52 of the weed loom. A long bearing 56 having an intermediate position pivotally mounted in the horizontal direction, and a rotary shaft 58 fitted and supported by the long bearing 56.
And have.

At one end of the rotary shaft 58, the rotator 46 composed of a metal wheel, a rubber wheel or the like is fixed, and the long bearing 58 is provided.
An urging spring 60 stretched between the end of the trochanter 46 and the machine frame 52 rotatably contacts and urges the trochanter 46 to the grass product 40. As shown in FIGS. 6 and 7, the rotary moving body 48 includes a substantially fan-shaped plate 62, and the rotary shaft 58.
The fan-shaped base is fixed to the other end of the. The sensing element 50 includes, for example, a proximity switch, a photo sensor, an ultrasonic sensor, etc., and is installed on the machine frame 52 so as to be close to the plate surface of the substantially fan-shaped plate 62.

As a result, the rotator 46 is brought into contact sliding rotation with the grass product 40 moving around the idler roller 34, and the rotary moving body 48 is rotated at the same speed as the rotator 46. Therefore,
The moving width of the rush product 40 can be converted into a rotation locus of the rotary moving body 48. In the embodiment, the sensing element 50 senses the substantially fan-shaped plate 62 and transmits a signal to the controller until the substantially fan-shaped plate 62 of the rotary moving body 48 reaches the front of the sensing element 50 and finishes passing. This signal transmission time is converted by the control unit as the movement width of the rush product 40, that is, the feed width of the warp yarn 16. The rotary moving body 48 is not limited to the substantially fan-shaped plate 62, and a slit disk or the like having a plurality of slits may be used. Alternatively, two fan-shaped plates may be stacked so that the central angle can be adjusted arbitrarily.

Then, the control section compares the number of times that the sensing element of the weeding number detecting section 18 senses the operation of the ground fastening rod 32 during the signal transmission from the sensing element of the warp thread width detecting section 20. For example, the feed width of the warp yarn 16 during one signal transmission by the sensing element of the warp yarn feed width detection unit 20 is approximately 5 cm, and the number of sensing times of the sensing element of the rush number detection unit 18 at this time is in the range of 23 to 25 times. , Approximately 90 to 10
The setting is made so that 0 grasses will be added to weave an abnormal grass product.

At this time, if the number of times of detection by the rush number detecting unit 18 is 23 to 25 times, it is determined that the woven product is normally woven, and the weaving operation is continued without adjusting the warp yarn 16. When the number of times of detection by the rush number detection unit 18 becomes 25 times or more, the rush number 4 for the feed width of the warp yarn 16
The control unit determines that the weeding product 40 is woven in the clogging state due to an increase in the number of input yarns of No. 4, and when the number of times of detection of the weeding plant number detection unit 18 is 23 times or less, the warp yarn It is judged that the weeds product 40 is woven in a state in which the number of rushes 44 to be fed with respect to the feed width of 16 is reduced and the eyes are transparent, and the braking portions 22 of the warp winding drum 12 are adjusted respectively.

As shown in FIGS. 1 and 2, the braking portion 22
Is a braking wheel 28 fixed to both ends of the rotary shaft 24 of the warp winding drum 12, and a braking band 64 having one end fixed to a position near the lower side of the braking wheel 28 and being wound around the braking wheel 28. The other end of the braking band 64 is connected to one end, and the braking lever 68 is pivotally attached to the hinge 66 at the lower position of the braking wheel 28, and is connected to the upper end of the braking lever 68.
Energizing spring 70 for energizing the braking wheel 28 with the braking band 64 while energizing the braking lever 68 toward the braking wheel 28 side.
And are equipped with.

As shown in FIG. 2, a urging member connected to the braking levers 68, 68 shown in FIG. 1 is attached to a winding shaft 72 rotatably supported near the guide shaft 30 above the woven portion 14. The other ends of the springs 70, 70 are wound and locked, and the winding shaft 72 is
The rotation shaft of the braking adjustment motor 74 is connected to the end of the. The forward rotation of the braking adjustment motor 74 causes the bias spring 7 to rotate.
While one end of 0 and 70 is wound around the winding shaft 72, the urging force is tense and the braking bands 64 and 64 increase the braking force of the warp winding drum 12, and the braking adjustment motor 74 is urged by the reverse rotation. The springs 70, 70 are rewound from the winding shaft 72 to relax the urging force, and the braking force of the warp winding drum 12 by the braking bands 64, 64 is reduced.

As shown in FIG. 1, the above-mentioned grass number detection unit 18
Detection signal of the warp feed width detection unit 20,
A counter circuit, a timer circuit, a comparison circuit, etc. are built in the control unit 76 which drives the braking unit 22 by comparing the above, and the sensing element 42 of the weed grass number detection unit 18 and the warp yarn feed are provided on the input side of this control unit 76. The sensing element 50 of the width detection unit 20 is connected, and the braking adjustment motor 74 on the braking unit 22 side is connected to the output side of the control unit 76.

Next, the operation of the braking adjustment device 10 for the warp winding drum of the weed loom according to the embodiment of the present invention will be described. When weaving the weed products 40 with a weaving loom, each warp yarn 16 is wound from the warp winding drum 12 to the weaving portion 14, the idler roller 34, and the nip feed roller 36 so as to be tense, and at the same time, the braking adjustment of the braking portion 22 is performed. The motor 74 is manually rotated in the forward direction to wind the ends of the urging springs 70, 70 around the winding shaft 72, pull the braking levers 68, 68 toward the braking wheels 28, 28, and brake with the braking bands 64, 64. The wheels 28, 28 are braked and held. After that, the braking adjustment motor 74 is automatically switched and the weeds are put into the weaving section 14 while the weeding 4 is carried out by the ground fastening rod 32.
4 is fastened to the ground and the grass product 40 is woven.

During the weaving of this rush product, the sensing element 42 of the rush number detecting unit 18 detects the ground fastening operation of the ground fastening rod 32 for each cycle, and the warp feed width detecting unit 2
The trochanter 46 of 0 rotates in contact with the grass product 40, and this trochanter 4
Substantially fan-shaped plate 62 of rotary moving body 48 that rotates at the same speed as 6
Is sensed by the sensing element 50. Then, in the control unit 76, the number of times that the sensing element 42 of the rush number detecting unit 18 senses the ground fastening rod 32 is counted within the time when the sensing element 50 of the warp yarn feed width detecting unit 20 senses the substantially fan-shaped plate 62. To do. When the count number sensed by the sensing element 42 of the rush number detecting unit 18 is within the range corresponding to the normal weaving operation, the braking unit 22 does not operate and continues the weaving operation as it is.

When the count number sensed by the sensing element 42 of the rush number detecting unit 18 increases from the count number in the normal weaving operation, the feed width of the warp yarn 16 decreases and the feed number of rush depending on the feed width increases. The control unit determines that the stuffed grass product 40 is woven in a clogged state. And
The control unit 76 reversely rotates the braking adjustment motor 74 of the braking unit 22, reduces the urging force of the urging spring 70, and relaxes the braking force of the warp winding drum 12, whereby the warp 1
The feed width of 6 is increased to restore the normal weaving state, and the braking adjustment motor 74 is stopped.

Further, the sensing element 42 of the rush number detecting unit 18
When the number of counts sensed in step 3 decreases from the number of counts in the normal weaving operation, the feed width of the warp yarn 16 increases and the number of rushes fed into the feed width decreases, and the weed product 40 is woven in a transparent state. Judge that it has been done. Then, the control unit 76 rotates the braking adjustment motor 74 of the braking unit 22 in the forward direction to increase the urging force of the urging spring 70 and tension the braking force of the warp winding drum 12, thereby increasing the feed width of the warp yarn 16. It will be reduced and it will automatically return to a normal weaving state.

Therefore, the excess or deficiency of the warp feed width corresponding to the number of rushes inserted is automatically detected, and the warp winding is carried out so that the warp feed width falls within the specified length range corresponding to the number of rushes inserted. It will be possible to automatically adjust the rotation braking of the drum,
It is not necessary for the operator to constantly check the warp yarn and the rush plant product, and it is possible to weave a uniform grass product without clogging.

The braking adjusting device for the warp winding drum of the weed loom according to the present invention is not limited to the above-mentioned embodiments, and is arbitrarily modified within a range not departing from the essence of the invention described in the claims. It also includes the case of performing.
That is, it is not necessary for the rush number detecting unit, the warp yarn feeding width detecting unit, the braking unit, and the control unit to be limited to the specific configurations shown in the embodiments.

[0031]

As described above, according to the braking adjusting device for the warp winding drum of the weed loom according to the first aspect of the present invention, it is inserted between the warp yarns fed from the warp winding drum of the weed loom to the weaving section. A rush number detecting unit for detecting the number of rushes to be formed, and a warp feed width detecting unit for detecting the warp feed width,
From the warp winding drum while driving the braking unit by comparing the braking signal for braking and adjusting the rotation of the warp yarn winding drum, the detection signal of the weed number detecting unit, and the detection signal of the warp yarn feeding width detecting unit. By providing a control unit for adjusting the warp yarn feed width of, the rotation braking of the warp take-up drum is performed so that the warp yarn feed width falls within a specified length range corresponding to the number of rushes inserted. It can be automatically adjusted, and it is not necessary for the operator to constantly check warp yarns and grass products, and it is possible to weave non-uniform grass products without clogging or see-through.

According to a second aspect of the present invention, the warp yarn feed width detecting section is woven by the weaving section and rotatably urged by sliding contact with the moving grass product, and the rolling element. A rotary moving body that rotates in conjunction with the child, and a sensing element that senses this rotary moving body,
By detecting the warp thread feed width while detecting the rotary moving body that interlocks with the trochanter with a sensing element, the warp moving body rotating at the same speed as the rush product can be detected with the sensing element. The feed width can be detected, whereby the weaving condition such as clogging of the grass product can be easily and automatically detected while comparing with the number of grasses to be detected by the grass number detecting unit.

[Brief description of drawings]

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

FIG. 2 is an explanatory view showing the circulation of the warp yarn sent out from the warp winding drum to the weaving portion and the movement circulation of the woven grass product.

FIG. 3 is a front view showing a grounding rod for fastening the input rush to the ground and a sensing element of a rush number detecting unit for detecting the grounding operation and converting the number of input grasses.

FIG. 4 is a front view showing a warp yarn feed width detection unit that detects a warp yarn feed width while sliding on a woven grass product.

FIG. 5 is an enlarged plan view of a warp yarn feed width detection unit.

FIG. 6 is an enlarged left side view of a warp yarn feed width detection unit.

FIG. 7 is an enlarged perspective view of a warp yarn feed width detection unit.

[Explanation of symbols]

 10 Braking adjustment device for warp winding drum of rush weaving machine 12 Warp winding drum 14 Weaving unit 16 Warp yarn 18 Number of weeds detecting unit 20 Warp yarn feeding width detecting unit 22 Braking unit 28 Braking wheel 32 Ground fastening rod 40 Weeding product 42 Sensing element 48 rotary moving body 50 sensing element 76 control unit

Claims (2)

[Claims] 1. A rush number detecting unit for detecting the number of rushes fed between the warp yarns fed from a warp winding drum of a rush weaving machine to a weaving unit, and a warp yarn feed width detection unit for detecting a feed width of the warp yarns. Section, a braking section that brakes and adjusts the rotation of the warp winding drum, a detection signal of the rush number detection section, and a detection signal of the warp thread width detection section are compared to drive the braking section while driving the warp winding section. A braking adjustment device for a vertical thread winding drum of a weed loom, comprising: a controller for adjusting a vertical thread feed width from the winding drum. 2. The warp feed width detecting unit is a weaving unit that is woven and rotatably urged into contact with a moving rush product, and a rotary moving body that rotates in conjunction with the rotator. 2. The warp winding of the weaving loom according to claim 1, further comprising: a sensing element for sensing the rotary moving body, wherein the warp thread feed width is detected while sensing the rotary moving body interlocking with the trochanter by the sensing element. Braking adjustment device for take-up drum.