JPH11117148A - Weaving apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve various problems in which operation for controlling crease (network) by speed (feed amount) in a driving part of vertical wire material feed out apparatus is troublesome operation requiring skill and weaving efficiency is not only low, but also unevenness of crease is liable to occur. SOLUTION: This weaving apparatus transmits rotation driving of a spindle 1 in linkage with a feed out device 2 for winding a vertical wire material 20 in rows in width direction and feeding out in length direction, shedding motion 3 for vertically moving so as to divide the vertical wiring material into vertical two portions, a lateral wire material inserting device for running horizontal wire material between vertical wire materials divided into upper and lower portions and inserting the horizontal wire material thereinto, a beating up device 4 for driving the horizontal material in winding direction and a device 5 for rolling the woven sheet. In the weaving apparatus, non-stage transmission 12 is interposed so as to directly transmit rotation driving of a spindle as rotation motion when rotation driving of the spindle 1 is transmitted to a vertical wire feed out device 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for weaving a woven sheet using a wire such as a fiber yarn or a metal wire, and more particularly to an apparatus for feeding a vertical wire in an apparatus for weaving a woven wire mesh, a fiber woven fabric, or the like. The present invention relates to a drive mechanism and a mechanism for adjusting the feeding amount and the winding amount during weaving in a device for winding a woven woven sheet.

[0002]

2. Description of the Related Art An apparatus for sequentially weaving a woven wire mesh and a fiber woven fabric by using a wire material such as a metal wire and a fiber yarn in a vertical direction and a horizontal direction as shown in FIG. An apparatus 2 in which a main shaft (crankshaft) 21 to be taken out sends out a vertical wire 30
2. It is linked to operate all devices such as a device 23 for winding up a woven sheet such as a woven wire mesh, and other devices.

[0003] Among them, a device 22 for sending out a vertical wire is
A vertical wire 30 which is sent out in parallel in the longitudinal direction by an opening device 24 composed of a heald (commonly called "kazari") that repeats vertical opening movement.
The openings 30 are regularly and alternately moved up and down, and horizontal wires are sequentially inserted into the openings to perform a beating 25. In synchronism with the operation of forming a woven mesh such as a wire mesh such as the beating 25. The vertical wire 30 is sent out.

A conventional vertical wire feeder 22 takes out a rod 26 which reciprocates by rotating a main shaft 21 using a crank 21a or a cam as shown in FIG.
The other end of the ratchet wheel 6 is connected to a ratchet drive arm 27a provided on the axis of the ratchet wheel 27, and the ratchet wheel 2 is returned to one-way intermittent rotational motion by a ratchet mechanism.
The warp beam system in which the vertical wire 30 is sent out via a reduction gear (eg, a pinion gear shaft) 29 to the rotation of 7 or the friction system in which a fixed amount is sent by sandwiching the vertical wire with a press roll and a friction roll surface-treated with urethane rubber The woven sheet take-up device 23 is similarly linked to the friction roll and is transmitted in linkage with the warp beam 22a, and is wound by the cross beam 23a.

[0005] The tension (tension) of the vertical wire 30 in the weaving device acts in the sending direction from the warp beam 22a, and a rotating torque in the same sending direction is generated on the warp beam shaft 22b.

[0006]

The rotational torque due to such tension causes idling in the ratchet drive by being combined with a ratchet mechanism transmitted through a reduction gear 29 such as a pinion gear shaft.

[0007] Due to this idling, the warp beam 22a is sent out by one rotation of the main shaft 21 by a constant operation of the heddle opening device 24 and reed 25 for one pitch forming one weave to accurately feed the vertical wire 30. In addition to being unable to rotate regularly, it also has an adverse effect on maintaining a constant tension, which forms an irregular woven mesh on the woven woven sheet and produces an inaccurate product with poor precision. Results.

In order to prevent this, in this type of conventional feeding device, an anti-spin brake (limiter) 28 is provided on the ratchet shaft.

Generally, the brake 28 is a band brake for the brake drum 27b on the ratchet shaft, and the brake is constantly applied to the slip with an appropriate striking force. A noise peculiar to the brake is generated, and a change in the temperature, humidity, and the like causes a change in the braking force, so that a uniform braking force does not always work.

[0010] Further, since the braking force is exerted by constantly holding the brake drum 27b of the ratchet shaft with a constant force, frictional heat is generated in the brake drum 27b, and this heat causes the brake 28 to become too effective (overload). (Braking) is likely to occur, resulting in useless force.
This is one of the factors that cause unevenness in the mesh in the weaving mesh forming process, such as the oil and the like adhering to the portion, causing the braking force to decrease and causing slipping easily.

In addition, the excessive braking by the frictional heat of the brake 28 causes the above-mentioned considerable useless force to act, so that the wear is intense, and sometimes the pawl of the ratchet wheel 27 or the cam clutch may be damaged. There is a trouble that the maintenance of the effectiveness of the brake 28 must be constantly checked.

Next, the operation must be stopped due to some troubles during weaving, for example, troubles such as a supply operation of the weft wire (weft), a poor insertion of the weft wire, and a cut of the weft wire or the warp (warp). If the reverse operation is performed without the operation of once releasing the feeding mechanism in the stopped state or without the rewinding operation, extra weaving is performed when weaving is resumed, and a gap outside the predetermined range (texture) is formed. Interval).

In addition, when the feed-out mechanism is released, the timing for starting (input) in the forward rotation when the weaving is restarted, and the amount of rewinding in the case of performing the rewinding operation, are accurately performed. Matching requires skill and requires very difficult techniques.

Further, the fine adjustment of the feeding amount in the weaving process is performed by temporarily stopping the loom and installing the adjusting device, that is, the driving arm 27a of the ratchet shaft,
Alternatively, the user has to move to the crank 21a (a device for adjusting the amount of reciprocating movement, commonly known as an indexer) and adjust the ratchet drive to a predetermined amount by using a tool such as a spanner.

On the other hand, in the take-up device 23, the ratchet wheel 2 driven to take up in the same manner as the feeding device is used.
3g and the claw 23h are easily worn, and the detent claw 23i composed of a plurality of members has a high-precision configuration (stepping).
Since accurate fine adjustment is obtained, unevenness is likely to occur in mesh formation due to wear of these members.

Even in the winding device 23, when the fabric is reversely rotated, the winding for returning the material that has been rewound at the restart of the weaving operation is unnecessarily wound. Unnecessary gaps are created. In order to prevent this, an accurate manual rewinding operation is performed, but this also requires a difficult and skilled technique.

Next, regarding a device for adjusting the tension at the time of weaving in the woven sheet take-up device 23, conventionally, the rotation of the main shaft 21 is used as a power, and the woven sheet is positively wound one by one at every beating movement. There is a type and a depolarizing type in which the ratchet drive arm is driven by using the tension of a spring or the weight of a weight to rotate the ratchet shaft and take up.

The tension (tension) acting on the vertical wire (warp yarn) in the weaving device changes according to the amount of each ticking sent out by the feeding device 22 in the positive winding system, and in the negative winding system, the tension or weight of the spring is used. It changes depending on the weight of the object.

As shown in FIG. 8, the vertical wire (warp) 30 sent out by the feeder 22 is reduced by the beating 25 by the amount (one pitch) sent out for each revolution of the main shaft 21. The ratchet shaft 23b, which has been decelerated and transmitted by the beam 23a and the gear, is connected to the ratchet drive arm 23.
In the negative direct winding system in which the woven sheet woven on the cross beam 23a is directly driven by being rotated and driven by the tension of the spring 23f acting on the force point 23c of e, the cross beam 23
As the woven sheet is wound on a and the winding diameter increases, the tension acting on the vertical wire (warp) 30 gradually decreases. To adjust this, the tension of the normal spring 23f is gradually increased to operate. However, many people rely on intuition.

Such a problem is a phenomenon that occurs because the ratchet shaft 23b is rotated with a constant torque. For this purpose, a reference is set to reduce or increase the tension of the spring or the weight of the weight. The operation must be performed sequentially, but this operation requires skill and was not easy.

The operation of the spring and the like is performed by the cross beam 23a.
After a certain amount of woven sheet is wound up, it often starts with increased tension when restarting, in which case,
At the beginning and end of weaving of a woven sheet such as a woven wire mesh or woven fabric, different unevenness of the woven mesh occurs, and a product with inferior quality is produced.

[0022] From the above, the improvement of the quality of the wire mesh (woven fabric) weaving depends on the accuracy of the texture as the quality of the wire mesh (woven fabric), the flatness, the smoothness of the surface of the wire mesh (woven fabric), and the curl. It is said that the gutter habit, strength, and the like that bend in the width direction are affected by the height of the heald during weaving, the timing of opening, and the tension acting on the vertical wire.

The proper tension varies depending on the degree of bending of the vertical wire at the time of weaving, the material of the wire and the tensile strength, and is formed by a balance between the feeding amount and a predetermined winding amount. It is almost impossible to grasp the expansion and contraction ratio during the operation of weaving by the conventional weaving apparatus, and it is particularly remarkable in a woven wire net having a large tensile strength.

Therefore, this kind of conventional loom is not only difficult in that the above-mentioned various operations require a skilled technique, but also has a poor weaving efficiency of a wire mesh or the like. It is an object of the present invention to solve the above problems and to realize a weaving apparatus which can be easily operated to increase the weaving efficiency.

[0025]

According to the present invention, in order to achieve the above object in a weaving apparatus for a wire mesh, a woven fabric, or the like, the rotational driving force of a main shaft as a driving shaft is obtained by winding a vertical wire in parallel in a width direction. A feeding device equipped with a warp beam method or a friction roll type warp beam that sends out in the longitudinal direction, an opening device that moves a heald (kazari) in the vertical direction to divide the sent vertical wire into upper and lower groups, and a vertical device that opens vertically A device for inserting a horizontal wire by moving a rapier by a shuttle or rapier drive device by a throwing device between wires, a beating device for driving the inserted horizontal wire in the winding direction, a weaving woven by beating In a weaving device that operates in series with the device that winds the sheet into a cross beam, the rotational drive of the main shaft is transmitted to the warp beam of the feeding device In order to transmit the rotational driving of the main shaft as it is, a continuously variable transmission capable of precisely adjusting the rotation speed is provided, and the rotation transmitted to the continuously variable transmission is constituted by a reduction gear or a belt wheel. We propose a weaving device for controlling the amount of warp beam sent from a device for sending a vertical wire through a reduction gear.

By operating the continuously variable transmission, the rotation speed of the warp beam can be finely adjusted without stopping the operation of the apparatus during the weaving process. The apparatus allows fine adjustment of the pitch (texture including mesh) formed by the horizontal wire of the woven sheet being woven, and the positive winding type weaving apparatus allows fine adjustment of the tension.

By using the continuously variable transmission, the rotational drive of the main shaft can be directly transmitted as an eccentric rotation to the warp beam in the vertical wire feeder, so that the feed of the vertical wire can be carried out at a predetermined speed without stagnation. It can be sent out by a warp beam that rotates smoothly, and can be exactly rewinded by the reverse rotation.

Since the main shaft and the warp beam are transmitted in an occlusal manner as a rotational motion, the torque generated by the tension acting on the warp beam prevents the continuously variable transmission and the reduction gear from idling. Since it works in the normal rotation direction of the main shaft, the driving force of the main shaft is assisted and stable tension is obtained.

Next, as a device for winding the woven sheet,
In the negative direct winding method, the driving pawl is turned to the ratchet shaft wheel by the driving force of the main shaft, and the woven sheet woven using the tension of the spring or the weight of the weight is wound directly on the cross beam. On the side of the cross beam take-up cylinder, a detection unit that detects the amount of displacement of the take-up amount (body side diameter) is placed in contact with the biased state, and installed on the ratchet drive arm provided on the ratchet shaft of the take-up device. The detecting portion is connected to a moving portion for moving the mounting portion such as the spring, which is the point of eccentricity, in the eccentric direction, and the power point of the spring or the like on the ratchet drive arm moves in the centrifugal direction in conjunction with the detection amount of the detecting portion. As the driving force to the ratchet drive arm increases due to the movement, the tension and weight of the spring and the like are not changed each time, and the cross by the spring etc. caused by the increase in the winding amount of the woven sheet by the cross beam With a decrease of the tension (tension) acting on the outer periphery of the over arm, automatically gradually rotated to increase the constant torque, it is capable of holding a predetermined tension (tension).

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a weaving apparatus according to the present invention will be described with reference to the drawings, taking a wire mesh weaving apparatus as an example.

In FIGS. 1 and 2, a wire mesh weaving apparatus includes a vertical wire feeder 2 for sending out vertical wires 20, 20 wound in parallel in the width direction and a lengthwise direction.
The opening device 3 in which the heald moves up and down so as to alternately open the 0, 20 up and down, a horizontal wire insertion device (not shown) for inserting a horizontal wire made of a metal wire between the vertical wires 20, 20 at the time of opening, and was inserted. It comprises a beating device 4 for driving a horizontal wire in a winding direction, and a wire mesh winding device 5 for winding a wire mesh 19 woven by beating.

The tapping (cam) of the tappet shaft 11 provided to transmit the vertical wires 20, 20 sent from the vertical wire feeding device 2 by the rotating main shaft 1 by a power source (not shown) by the power source (not shown). Vertical rods 20, 20 sent out from the vertical wire feeder 2 by raising and lowering the heald are alternately opened vertically, and a reed by a crank 1b provided on the main shaft 1 with a horizontal wire inserted into the opening by a horizontal wire insertion device. By the operation of the driving device 4, the wire net 19 is woven by sequentially driving in the winding direction and wound around the wire netting device 5.

The vertical wire feeder 2 transmits a warp beam 2a on a warp beam shaft 2b in which vertical wires 20, 20 made of a metal wire are wound in parallel in the width direction from a main shaft 1 by a timing belt 12a. The step transmission 12 is further rotated through a speed reducer 13 composed of a plurality of gears 13a, 13b, 13c to send out the vertical wires 20, 20 in the longitudinal direction.
The wire mesh 19 is sequentially woven by the respective operations of the opening device 3, the horizontal wire rod insertion device, and the beating device 4.

By employing the continuously variable transmission 12, the rotational drive of the main shaft 1 is transmitted through the speed reducer 13 while keeping the rotational motion,
The feed amount can be controlled by adjusting the rotation of the warp beam 2a. Of the adjustment of the feed amount of the woven wire mesh 19, the rough adjustment is performed by the gear 13 of the speed reducer 13.
a, 13b and 13c, and the most frequently used fine adjustment is performed by operating the continuously variable transmission 12.

The transmission of the main shaft 1 to the continuously variable transmission 12 is driven by a gear, a chain, or the like in addition to the illustrated timing belt 12a. A clutch device 12b composed of a clutch or the like is installed, and a handle 13d is provided on a gear 13a of the speed reducer 13, so that when the weaving device is stopped in trouble or inspection of the device, the timing of the insertion of the horizontal wire material, which is the key to the formation of a mesh at restart, is performed. The unwinding and idle feeding operations of the vertical wire 20 for measuring the speed can be easily performed manually. By installing the clutch device 12b on both the input side and the output side of the continuously variable transmission 12, the vertical wire 20 Can be more accurately and conveniently rewinded and fed by an empty feed.

By providing the double gears 13b, 13c on the shafts of the gears 13b, 13c of the speed reducer 13, the gear changing work for rough reduction adjustment is facilitated.

Although not shown in the drawings, it operates to release and brake in synchronism with the shaft of the gear 13a of the reduction gear 13 meshed with the output side of the continuously variable transmission 12 when the clutch device 12b is engaged and disconnected. By installing the brake device, the operation of the vertical wire feeding device 2 is ensured.

Warp beam 2a of vertical wire feeder 2
Alternatively, it is also possible to transmit the vertical wires 20, 20 by transmitting to a friction roll surface-treated with a friction-resistant material such as urethane rubber to increase the friction effect with a press roll.

The wire mesh winding device 5 is a woven wire mesh 1
9, a guide roll 5b for feeding the wire mesh 19 to the cross beam 5a, a friction roll 5c, and a press roll 5d. The friction roll 5c works to determine the mesh pitch formed by the horizontal wire. The transmission structure is the vertical wire feeder 2
And the continuously variable transmission 14 and the gears 15a, 15b, 1 transmitted from the main shaft 1 by the timing belt 14a.
5c through the speed reducer 15 comprising the friction roll 5
By driving the wire c, the wire mesh winding device 5 is driven. The driving of the friction roll 5c always rotates by a predetermined mesh (mesh pitch) for one rotation of the main shaft 1.

The woven wire net 19 is used for the wire netting device 5.
The frictional roll 5c is driven by the guide roll 5b and the press roll 5d to enhance the frictional action, whereby the frictional roll 5c is sequentially pulled out from between the friction roll 5c and the press roll 5d and stretched and transported. The rotary drive of the cross beam 5a is usually powered by a winding pinion gear shaft via a torque limiter.

Although the wire mesh winding device 5 is not shown in the drawings in addition to the above-described one, the friction roll 5c is replaced with a cross beam, and the wire mesh 19 sent from the breast roll 5e is directly wound around the cross beam. It is also possible to use a winding method.

A back roll 2c is provided on the side of the vertical wire feeder 2 and a breast roll 5e is provided on the side of the wire net take-up device 5 to set the height of the heald (the horizontality with the vertical wire 20). 20, 20 delivery and woven wire mesh 19
To facilitate winding.

Delivery of vertical wires 20, 20 and wire mesh 1
The winding speed 9 is relatively adjusted by the thickness and material of the wire material of the wire mesh 19 to be woven, the size of the mesh, and the like, and is finely adjusted by operating the continuously variable transmission 12 as described above. It can be solved sufficiently.

The tension (tension) during the weaving of the fed vertical wires 20, 20 is formed by the difference between the feeding amount and the winding amount per one revolution of the main shaft 1. The horizontal wire in the weaving process is formed. It varies depending on the bending of the vertical wires 20, 20 due to insertion and beating, the material of the wires, tensile strength, thickness, size of the mesh to be formed, and the like.

The rotation speed of the wire netting device 5 forms a mesh pitch composed of horizontal wires. On the other hand, by adjusting the rotation speed of the vertical wire feeding device 2,
It is possible to change the tension (tension) of the vertical wires 20, 20 during weaving.

The tension acting on the vertical wires 20, 20 can be adjusted by installing a load cell on the bearing of the back roll 2c,
Read the load on c and use it as a guide to obtain accurate tension.

[0047]

FIG. 3 shows an embodiment of the transmission mechanism of the vertical wire feeder 2, in which the main shaft 1 and the timing belt 12a are used.
The bevel gear 12c on the output side of the continuously variable transmission 12 having the clutch device 12b which is transmitted by the transmission is connected to the bevel gear 16a of the worm speed reducer 16 provided as a speed reducer.
The warp beam 2a of the vertical wire feeder 2 is driven via the b and 16c. Although not shown in the drawings, if another transmission mechanism is described with reference to FIG. 1, the two continuously variable transmissions 12 and 14 are connected by a single chain from the main shaft 1 via a clutch device.
A transmission is transmitted to the warp beam 2a through a worm speed reducer provided with a brake device, and is transmitted to the warp beam winding device 5 through a worm speed reducer provided with a brake device. By transmitting the friction to the friction roll 5c by the worm speed reducer or the like via the step transmission 14, there is an advantage in that the unwinding and winding operations can be manually performed simultaneously or separately with almost no change in tension. is there.

[0048]

FIG. 4 shows another embodiment of the transmission mechanism of the vertical wire feeding device 2 and the wire mesh winding device 5. The tappet shaft 11 transmitted by the main shaft 1 is connected to the continuously variable transmission 1 of each other.
The clutch device 1 is connected to the input sides of the gears 2 and 14 by gears (not shown) or the like, and has a brake 18a as a reduction gear at the output side of the continuously variable transmission 14 of the wire netting device 5.
Worm reduction gears 17 provided with the bevel gears 1
The friction roll 5c of the wire netting device 5 is driven by linking the worm gear 17a and the worm gear 17a of the worm reduction gear 17b so as to be transmitted to the reduction gears 17b and 17c.

By transmitting the warp beam 2a of the vertical wire feeder 2 and the friction roll 5c of the wire net take-up device 5 via the continuously variable transmissions 12 and 14 so as to transmit the rotational driving force of the main shaft 1 as rotary motion as it is. During the wire mesh weaving operation, by simply operating the rotation speed adjusting handle (knob) of the continuously variable transmission 14 on the winding device 5 side, the feeding speed of the vertical wires 20, 20 is changed slowly and sharply, and the horizontal wire is used. By adjusting the mesh pitch to be formed, a mesh having a predetermined size can be obtained.

On the other hand, the tension can be easily set by operating the rotation speed adjusting handle of the continuously variable transmission 14 during the weaving operation on the side of the vertical wire feeder 2 as well, and the wire mesh 19 with high accuracy can be efficiently used. Can be well woven.

As described above, the speed change operation of the continuously variable transmissions 12 and 14 can be accurately changed without depending on intuition by setting and operating the scale displayed on the operation handle in a predetermined manner. By reading the scales set with the operation handles of the transmissions 12 and 14, it is possible to easily calculate the pitches of feeding and winding, and by comparing the pitches, it is possible to grasp the expansion ratio. The grasp of the expansion / contraction ratio is a standard for weaving the wire mesh 19 having a uniform mesh pitch and high accuracy.

The wire mesh weaving apparatus according to the present invention comprises a continuously variable transmission 1
The ring cone continuously variable transmission (SCM-E)
Type, manufactured by Simpo Industry Co., Ltd.), but other continuously variable transmissions, for example, a cup continuously variable transmission (Asahi Seiki Co., Ltd.)
), Bayer continuously variable transmission (manufactured by Sumitomo Heavy Industries, Ltd.)
, DISCO continuously variable transmission (made by Tsubakimoto Chain Co., Ltd.),
Equipped with a continuously variable transmission function such as a chain gear continuously variable transmission (manufactured by Nippon Chain Gear continuously variable transmission Co., Ltd.) and a belt-type continuously variable transmission (manufactured by Miki Pulley Co., Ltd., manufactured by Sakai Seisakusho Co., Ltd.) With such a transmission, the functions and effects expected by the present invention can be obtained.

The vertical wire feeder 2, the wire net take-up device 5, and the speed reducers 13 and 15 can be implemented by using any device other than those described above.

[0054]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of an automatic tension adjusting device in a woven sheet winding device in which a weaving device is woven will be described with reference to FIGS.

The wire mesh winding device 5 of the wire mesh weaving device using the negative direct winding method includes a ratchet feed arm 6a provided with a slide pin 6b and a driving claw 6c, and a ratchet drive arm 6d provided with a spring 10 as a rotary drive source. A drive pawl 6 attached to a freewheel on the ratchet shaft 6 for transmitting a rotational driving force to the ratchet shaft 6
The ratchet feed arm 6a provided with the
a slide lot 1c that feeds c in an idle manner, and a cross beam 5a interlocked with a ratchet shaft 6 via a reduction gear;
The wire netting device 5 is provided with an automatic tension (tension) adjusting device.

The wire mesh winding device 5 connects the slide lot 1c to the crank mechanism 1a of the main shaft 1, and connects the slide lot 1c to the slide pin 6 of the ratchet feed arm 6a.
b, and slides on the slide pin 6b with the set collar 1d installed in the slide lot 1c advanced by the rotation of the main shaft 1, and the ratchet feed arm 6a
The drive pawl 6c provided on the ratchet feed arm 6a engages with the ratchet wheel 6e on the ratchet shaft 6 with the further rotation of the main shaft 1 by one rotation. When the set collar 1d of the slide lot 1c is retracted, the slide pin 6b of the ratchet feed arm 6a is released from the set collar 1d, and is loosened by the beating of the amount (one pitch) by which the vertical wires 20, 20 have been fed. The ratchet drive arm 6d is rotated by the tension of the spring 10 to drive the ratchet wheel 6e with the drive pawl 6c of the ratchet feed arm 6a, thereby driving the ratchet shaft 6 and the cross beam 5a, thereby causing the top dead. Detent pawl 6 when ratchet drive arm 6d stops at a point
f is engaged with the ratchet wheel 6e on the ratchet shaft 6 and the tension is maintained, and the woven wire mesh 19 is sequentially wound by the repeated driving.

The automatic tension adjusting device according to the present invention is configured such that the base of the mounting arm 7b having the ear pressing roll 7a attached to the tip thereof can be swung by the arm shaft 7c on the cross beam 5a of the wire netting device 5. Pivotally supporting the mounting arm 7b
And a detection unit 7 composed of a fan-shaped lever arm 7d integrally formed at a predetermined angle and supported by an arm shaft 7c, and the ear pressing roll 7a is attached to the ear of the cross beam 5a by its own weight or a spring 7g. The spring 1 attached to the ratchet driving arm 6d is brought into contact with the urging state.
A device for moving the zero point of force (fulcrum) in the eccentric direction is defined as a moving portion 8, and the moving portion 8 is connected to the distal end portion of the lever arm 7d via a turn roller 9a by a wire release-shaped wire 9. The unit 8 moves in the eccentric direction in conjunction with the swing of the mounting arm 7b of the detection unit 7.

The lever arm 7 d is provided with a device for adjusting the base end of the wire 9 so as to be able to advance and retreat with a screw or the like to a receiving portion 7 h provided at the arc-shaped tip portion formed in a fan shape. It is installed to adjust the amount of transmission of the take-up amount to the moving unit 8, loosens the screw and adjusts the length of the fixed part at the base end of the wire 9 so that the power point is increased by increasing the diameter of the cross beam 5 a transmitted from the detection unit 7. This makes it possible to finely adjust the amount of movement of the moving section 8, and to easily keep the tension of the vertical wires 20, 20 in the weaving device constant at all times according to the situation.

An elongated hole-shaped fixed guide 7e is formed on the lever arm 7d along an arc shape, and a bolt nut 7f is passed through the fixed guide 7e and tightened and supported on the side of the frame. By loosening the nut 7f, the lever arm 7d is released from the bolt nut 7f, and the mounting arm 7b is formed integrally with the lever arm 7d while maintaining a predetermined angle.
Is pressed against the cross beam 5a. Conversely, when the bolt / nut 7f on the fixed guide 7e is tightened at a position away from the cross beam 5a against the urging of the mounting arm 7b of the ear pressing roll 7a, the mounting arm 7
Since b is fixed in that state and the urging roll 7a does not act on the cross beam 5a, the wire net 19 wound and wound into a roll can be easily taken out from the cross beam 5a.

The diameter of the cross beam 5a increases as the amount of the wire net 19 wound on the cross beam 5a of the wire net winding device 5 increases. The diameter of the cross beam 5a is sequentially detected by the ear pressing roll 7a of the detection unit 7, and the lever The power point moving portion 8 is automatically moved in the eccentric direction by the wire 9 connected by the leverage of the arm 7d to increase the driving torque by the spring 10 to the ratchet shaft 6, and the amount of the wire mesh 19 to be wound is increased. The adverse effect that the tension (tension) acting on the vertical wire member 20 caused by the increase in the diameter of the beam 5a gradually decreases is eliminated by the automatic tension (tension) adjusting device.

The automatic tension adjusting device is
The configuration in which the detection unit 7 and the power point moving unit 8 are linked and linked by the release wire 9 has been described. However, other linkages are also possible. In addition to forming the lever arm 7d in a fan shape, a simple rod-shaped The intended operation and effect of the present invention can also be obtained by configuring the lever arm so as to adjustably receive the base end of the wire 9 at the distal end so as to be able to advance and retreat, and to fix and connect with the set screw.

[0062]

The weaving apparatus of the present invention has the above-described structure, and the speed change operation of the continuously variable transmission can be remotely controlled by a flexible shaft or the like. It can be installed in place, and during the weaving operation by operating the continuously variable transmission, without stopping the operation and without using additional tools, the mesh formation and tension of the wire mesh to be woven Can be easily and reliably adjusted to a predetermined size, and work efficiency is improved.

In addition, since the driving force of the main shaft is transmitted as a rotary motion as it is, the weaving operation is stopped due to a trouble or the like, and the operation of inching (forward motion) and reverse rotation is repeated. Also, unevenness due to interruption is not generated.

Further, the transmission structure that does not cause the idling phenomenon eliminates the need for members such as a driving claw, a reverse prevention claw, or a brake, which come into intense contact friction by operating during operation, at the biting portion of each other, so that these members are worn out. And there is no danger of the texture accuracy drop caused by the breakage,
It is a weaving device that also has durability.

In addition, it is possible to easily grasp the expansion / contraction ratio during the weaving operation, which was impossible with the prior art, by reading the scale of the continuously variable transmission and performing simple measurement and calculation. This expansion and contraction rate is very useful for weaving a high-accuracy wire mesh as a quantified guide in setting the tension (tension).

Tension In a self-adjusting device, a winding device of a negative direct winding type is used to increase the length of a woven sheet made of a long wire such as a woven wire mesh or a woven fabric which is sequentially wound by weaving. An automatic adjustment device that gradually detects the take-up diameter and moves the driving force point of the ratchet shaft linked to this in the eccentric direction, automatically adjusting the take-up torque automatically as the take-up amount of the woven sheet increases. Therefore, the change in the tension (tension) acting on the vertical wire material by the vertical wire material feeding device and the winding device in the weaving device during weaving is gradually corrected to carry out weaving while keeping the tension constant at all times. be able to. Therefore, even if it is a long object, a predetermined seam (texture) can be accurately obtained over the entire woven sheet,
A high-precision woven sheet without weaving unevenness can be easily produced, and the drive torque can be reduced without taking special measures to increase the tension and gravity of springs and weights each time. Since the tension can be automatically and gradually increased in accordance with the increase to keep the tension constant, the working efficiency can be further increased.

[Brief description of the drawings]

FIG. 1 is a side view of a wire mesh weaving apparatus embodying the present invention.

FIG. 2 is a plan view showing a part of the wire mesh weaving apparatus of FIG.

FIG. 3 is a plan view showing another embodiment corresponding to FIG. 2;

FIG. 4 is a side view of a wire mesh weaving apparatus showing another embodiment.

FIG. 5 is a side view showing an automatic tension adjusting device in a winding device of a negative polarity direct winding type of a wire mesh weaving device embodying the present invention.

FIG. 6 is a side view showing a main part of the automatic tension adjusting device of FIG. 5;

FIG. 7 is a side view showing a conventional wire mesh weaving apparatus.

FIG. 8 is a side view showing a conventional negative winding direct winding device of a wire mesh weaving device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main shaft 2 Vertical wire feeding device 3 Opening device 4 Reeding device 5 Wire mesh winding device 6 Ratchet shaft 7 Detecting unit 8 Force point moving unit 9 Wire 10 Spring 12 Continuously variable transmission 12b Clutch device 13 Reduction gear 14 Continuously variable transmission 15 Reduction gear 18 Clutch device 18a Brake 19 Wire mesh 20 Vertical wire

Claims (6)

[Claims] 1. A feeder for rotating a main shaft to be wound in parallel in a width direction and sending it out in a longitudinal direction, an opening device for vertically moving a heald so as to divide the vertical wire into upper and lower groups, and A horizontal wire rod insertion device that makes a horizontal wire rod fly between the separated vertical wire rods, a beating device that drives the inserted horizontal wire rod in the winding direction, and a winding device that winds a woven woven sheet In the weaving device that is linked to each other and transmitted, in order to transmit the rotational drive of the main shaft to the vertical wire feeder, a continuously variable transmission is provided so as to transmit the rotational drive of the main shaft as rotational motion as it is, and the continuously variable transmission of the continuously variable transmission is provided. Weaving device for transmitting rotation via a reduction gear. 2. The winding device according to claim 1, further comprising: a stepless transmission for transmitting the rotational driving force of the main shaft to the rotational driving of the main shaft. 2. The weaving device of claim 1, wherein the weaving device is adapted to transfer the woven woven sheet to an apparatus for winding the woven sheet. 3. The weaving device according to claim 1, wherein the continuously variable transmission is linked to an input (spindle) side or an output (reduction gear) side via a clutch device. 4. A transmission mechanism provided with the clutch device, wherein a transmission (output) side shaft adjacent to the continuously variable transmission has:
It operates and stops when the driving force is cut off by the clutch device,
4. The weaving device according to claim 3, further comprising a brake device which is released and can be manually operated. 5. A feeding device for rotating a main shaft to be wound in parallel in a width direction and sending it out in a longitudinal direction, an opening device for vertically moving a heald so as to divide the vertical wire into upper and lower groups, and A horizontal wire rod insertion device that inserts a horizontal wire rod by flying it between divided vertical wire rods, a beating device that drives the inserted horizontal wire rod in the winding direction, a spring and weight by a ratchet mechanism for woven woven sheets. For example, in a weaving device that is driven in association with a depolarizing direct winding device that drives and winds by using another force, a winding amount detection unit is installed in the winding device, and the force point of the ratchet mechanism is moved in an eccentric direction. An automatic tension adjusting device for a weaving device, wherein a moving section is connected to the detecting section, and a force point of the moving section is moved in an eccentric direction in conjunction with an increase in a winding amount. 6. The vertical wire feeder is provided with a continuously variable transmission for transmitting the rotational drive of the main shaft to transmit the rotational drive of the main shaft as it is, to reduce the rotation of the continuously variable transmission. 6. The method according to claim 5, wherein said signal is transmitted via a device.
Automatic tension adjusting device for weaving equipment.