JPH05222638A - Tension regulator for warping creel - Google Patents

Abstract

PURPOSE:To accurately control the taking out tension by braking an output shaft and regulating the relative positions when a sensed value of an output shaft for moving movable rods attains the set value in a process for taking out yarn in contact with fixed rods and the movable rods at relative positions according to the set value from a creel. CONSTITUTION:Yarn (y) of each package (P) mounted on a warping creel is stretched in contact with many fixed rods 5 and movable rods 6 and 7 arranged in the vertical directions of a creel in a fixed plate 1 and movable plates 2 and 3 installed in the front and back direction of the creel so as to enable the taking out. A value corresponding to the grade of the yarn (y) is set in a setter. A rotary actuator 13 for moving the movable rods 6 and 7 is then driven to take out the yarn (y) under a prescribed tension in a state of the relative positions of the movable rods 6 and 7 set at the set value. When a sensed value for the rotated position of the output shaft in the rotary actuator 13 sensed with a rotary encoder 15 attains the set value, the output shaft is braked and stopped with a disk brake 14 to control the tension of the yarn (y).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for adjusting the tension of a yarn drawn from a package mounted on a warp creel.

[0002]

2. Description of the Related Art A tension adjusting device of this type is disclosed in Japanese Patent Laid-Open No. 61-
As disclosed in JP-A-275436 and JP-A-63-28932, a fixed plate and a movable plate are provided on the yarn drawing side of the warp creel along the front-rear direction of the warp creel, respectively. A large number of fixed rods and movable rods are attached along the vertical direction of the warp creel, and the fixed rod and the movable rod are arranged between the columns of the warp creel and the thread breakage detector. The yarn of the package set on the warp creel is pulled out by coming into contact with the fixed rod and the movable rod, and is wound up by the warper via the yarn breakage detector.

A rack is provided at the end of a movable plate that can move in the front-rear direction of the warp creel, a pinion is engaged with the rack, and a handwheel is attached to the pinion shaft. A lever mechanism is attached to the pinion shaft via an electromagnetic clutch, and the lever mechanism is connected to an air cylinder that operates in conjunction with the operation and stop of the warper.

When adjusting the thread tension according to the thickness of the thread,
Release the electromagnetic clutch and turn it by hand to rotate the handle. Then, the movable plate moves, the movable rod moves, the relative position of the movable rod and the fixed rod changes, and the angle at which the thread of the package set on the warp creel contacts the movable rod and the angle at which the fixed rod contacts. Respectively, the pulling resistance of the yarn of the package increases and decreases, and the tension is adjusted.

[0005]

However, in the above-described warping creel tension adjusting device, since the thread tension is adjusted manually by manually operating the handle, it takes a lot of time and labor to accurately adjust the thread tension. It costs.

An object of the present invention is to solve the above conventional problems.

[0007]

According to the present invention, a warp creel is provided with a fixed plate and a movable plate, respectively, and a plurality of fixed rods and movable rods are provided on the fixed plate and the movable plate, respectively. It is attached along the vertical direction of the warp, and the thread of the package set on the warp creel is brought into contact with the fixed rod and the movable rod to pull it out, and the movable shaft that moves the movable plate along the front and rear direction of the warp creel is moved. The movable plate is moved by the rotation of the rotary shaft to change the relative positions of the movable rod and the fixed rod, and the angle at which the yarn of the package contacts the movable rod and the angle at which the yarn contacts the fixed rod are increased or decreased. In a tension adjusting device for a warp creel configured to adjust the tension of a rotation driving device, a braking device that connects an output shaft of a rotation driving device to a rotation shaft and brakes and stops the output shaft of the rotation driving device, and an output shaft of the rotation driving device. The rotational position of An output device is provided and a setting device that sets a value according to the yarn type of the package to be set on the warp creel is provided.The rotation drive device is driven, and when the detection value of the detector reaches the value set in the setting device, rotation drive is performed. A warp creel tension adjusting device is provided with a control device that stops driving of the device and operates a braking device to stop braking of an output shaft of a rotation driving device.

[0008]

In the present invention, when the value corresponding to the yarn type of the package set on the warp creel is set in the setter and the rotary drive device is driven, the output shaft of the rotary drive device rotates,
When the detection value of the detector reaches the value set in the setting device, the driving of the rotary drive device is stopped and the braking device is activated to stop the output shaft of the rotary drive device by braking.

That is, the rotation of the output shaft of the rotary drive moves the movable plate to move the movable rod, the relative positions of the movable rod and the fixed rod become as set in the setting device, and the thread moves the movable rod. The angle of contact with the thread and the angle of contact with the fixed rod are respectively adjusted to adjust the thread tension.

[0010]

According to the present invention, the value corresponding to the yarn type of the package set on the warp creel is set in the setter,
When the rotary drive device is driven, the relative position of the movable rod and the fixed rod becomes as set in the setting device, and the tension of the yarn is adjusted, so that the adjustment of the yarn tension does not take much time.

Further, the detector detects the rotational position of the output shaft of the rotary drive device, and when the detected value reaches the value set in the setting device, the output shaft of the rotary drive device stops braking. Therefore, the relative positions of the movable rod and the fixed rod are accurately adjusted.

That is, it does not take much time to accurately adjust the thread tension.

[0013]

EXAMPLE A warp creel tension adjusting device of this example is shown in FIG.
2, the strip-shaped fixed plate 1 is provided horizontally along the front-back direction of the warp creel (not shown), and the strip-shaped movable plates 2 and 3 are arranged adjacent to each other on both sides of the fixed plate 1. ,
The inner movable plate 2 on the warp creel side and the outer movable plate 3 on the opposite side are connected by a connecting plate 4 so as to be movable along the fixed plate 1.

As shown in FIGS. 1 and 2, the fixed plate 1 and the movable plates 2 and 3 are respectively provided with a large number of fixed rods 5 and movable rods 6 and 7 having circular cross sections in the vertical direction of the warp creel. The inner movable rod 6, the fixed rod 5, and the outer movable rod 7 are arranged between the warp creel and the columns 8 of the yarn breakage detector, respectively.

The yarn y of the package P set on the warp creel is pulled out by coming into contact with the inner movable rod 6, the fixed rod 5 and the outer movable rod 7, and is wound around the warper through a yarn breakage detector (not shown). Be done.

A rack 9 is provided at the end of the outer movable plate 7 as shown in FIG. 1, a pinion 10 is meshed with the rack 9, and the pinion shaft 11 is rotated, as shown in FIGS. 4 and 5. The movable rods 2 and 3 are moved to change the relative positions of the movable rods 6 and 7 and the fixed rod 5, and the angle y at which the yarn y of the package P contacts the inner movable rod 6 and the angle β at which the fixed rod 5 contacts. And the angle γ of contact with the outer movable rod 7 is increased or decreased to adjust the tension of the yarn y.

As shown in FIGS. 1 and 2, a pinion shaft 11, which is a rotary shaft for moving the movable plates 2 and 3, is provided with a rotary actuator 1 of a rotary drive device via a pair of gears 12.
3, the output shaft of the rotary actuator 13 is connected to the output shaft of 3 and is provided with the disc brake 14 of the braking device on the output shaft of the rotary actuator 13, and the rotary encoder 15 of the rotational position detector is provided on the output shaft of the rotary actuator 13. There is.

As shown in FIG. 3, the rotary actuator 13 has a forward rotation input port, a reverse rotation input port, and a disc brake 14 input port.
A high pressure air source 19 is connected via 18.

Further, as shown in FIG.
The control device 20 is provided with a setting device 21 and a display device 22, respectively.
Is connected to the forward rotation solenoid valve 16 and the reverse rotation solenoid valve 17 of the rotary actuator 13 and the solenoid valve 18 of the disc brake 14, respectively, and the output end of the rotary encoder 15 is connected to the input end of the control device 20. The device 21 is connected to the input end of the control device 20, and the output end of the control device 20 is connected to the display device 22.

When the warping creel tension adjusting device of this example is used, a value corresponding to the thickness of the yarn y of the package P to be set on the warping creel and the kind of material etc. is set in the setter 21, and the rotary is set. The actuator 13 is driven.

Then, when the output shaft of the rotary actuator 13 rotates normally or reversely and the detected value of the rotary encoder 15 reaches the value set in the setter 21, the drive of the rotary actuator 13 is stopped and the disc brake 14 is activated. Then, the output shaft of the rotary actuator 13 is stopped by braking and held at that position.

That is, the rotation of the output shaft of the rotary actuator 13 causes the pinion shaft 11 to rotate, the two movable plates 2 and 3 move, and the relative positions of the movable rods 6 and 7 and the fixed rod 5 are set in the setter 21. As described above, the angle α at which the yarn y of the package P contacts the inner movable rod 6, the angle β at which it contacts the fixed rod 5 and the angle γ that contacts at the outer movable rod 7 are adjusted, respectively, and the tension of the yarn y is adjusted. Adjusted. Further, the display 22 displays the relative positions of the movable rods 6 and 7 and the fixed rod 5.

When the relative positions of the movable rods 6 and 7 and the fixed rod 5 are adjusted to the positions shown in FIG. 5, the yarn y has the inner movable rod 6 as compared with the case where it is adjusted to the positions shown in FIG. The contact angle .alpha., The contact angle .beta. Of the fixed rod 5 and the contact angle .gamma. Of the outer movable rod 7 increase, and the tension of the yarn y increases.

In the warp creel tension adjusting device of this example, when the rotary actuator 13 is driven by setting the value according to the yarn type of the package P to be set on the warp creel in the setter 21, the movable rods 6, 7 are moved. Since the relative positions of the fixing rod 5 and the fixing rod 5 are set as set by the setting device 21, the tension of the yarn y is adjusted, so that the adjustment of the yarn tension does not take much time.

Further, when the rotary encoder 15 detects the rotational position of the output shaft of the rotary actuator 13 and the detected value reaches the value set in the setter 21, the output shaft of the rotary actuator 13 is stopped by braking. The relative positions of 6, 7 and the fixed rod 5 are accurately adjusted.

In the above-described embodiment, the rotary actuator 13 uses the rotary actuator 13 that rotates forward and backward within a fixed angle by the pressure of air, but uses a stepping motor whose output shaft rotates by a fixed angle in response to an electric signal. May be.

Further, although the disc brake 14 operated by the pressure of air is used as the braking device, a brake operated by an electric signal may be used.

[Brief description of drawings]

FIG. 1 is a plan view of a main part of a warp creel tension adjusting device according to an embodiment of the present invention.

FIG. 2 is a side view of a main part of the warp creel tension adjusting device of the example.

FIG. 3 is a block diagram of a warp creel tension adjusting device of the example.

FIG. 4 is an explanatory diagram of an adjustment state of the warp creel tension adjusting device in the same example.

FIG. 5 is an explanatory diagram of another adjustment state of the warp creel tension adjusting device in the same example.

[Explanation of symbols]

 1 fixed plate 2 inner movable plate 3 outer movable plate 5 fixed rod 6 inner movable rod 7 outer movable rod 11 pinion shaft, rotary shaft 13 rotary actuator, rotary drive device 14 disc brake, braking device 15 rotary encoder, rotary position detector 20 Control device 21 Setting device P package y Thread α Angle at which the yarn contacts the inner movable rod β Angle at which the yarn contacts the fixed rod γ Angle at which the yarn contacts the outer movable rod

Claims (1)

[Claims] 1. A fixed plate and a movable plate are respectively provided along the front and rear direction of the warp creel, and a plurality of fixed rods and movable rods are attached to the fixed plate and the movable plate, respectively, in the vertical direction of the warp creel, The thread of the package set on the warp creel is brought into contact with the fixed rod and the movable rod to pull it out, and a movable plate that moves the movable plate along the longitudinal direction of the warp creel is provided. , The movable plate is moved to change the relative positions of the movable rod and the fixed rod, and the angle of contact between the package thread and the fixed rod is increased or decreased to adjust the thread tension. In a warping creel tension adjusting device, a braking device that connects an output shaft of a rotation driving device to a rotation shaft and brakes and stops the output shaft of the rotation driving device, and a detector that detects a rotational position of the output shaft of the rotation driving device. The warp cree There is a setter that sets the value according to the yarn type of the package to be installed in the package, drives the rotation drive device, and stops the drive of the rotation drive device when the detected value of the detector reaches the value set in the setter. A tension adjusting device for a warp creel, comprising a control device for operating a braking device to stop braking an output shaft of a rotary drive device.