JPH1121013A - Traverse device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily prevent the ribbon-winding and the high shoulder at the end of a package at a low cost by counting that moving distance of a traverse guide to be reciprocated through the drive of a servo motor in the right-to-left direction, and comparing the count data with the input data to control a forward/reverse switching means of the servo motor. SOLUTION: A traverse guide 4 is reciprocated by pulling it by a forward/ reverse traveling means 6 using a servo motor 5. The center of the reciprocation width is detected by a center detecting means 17. The working pulse is prepared by a speed pulse preparing means 20 during the movement from the center P in the right-to-left direction, and counted by a counter 21. When the data from the counter 21 is agreed with the data to be inputted by an inputting means 22 in advance, the working signal is outputted to a forward/reverse switching means 23 of the servo motor 5 by a CPU 18. A servo amplifier 24 is operated by the working signal to switch the rotational direction of the servo motor 5. The movement distance in the right-to-left direction from the center of the traverse guide 4 is established thereby.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a traverse device,
In particular, the present invention relates to a traverse device suitable for use in a winding section of a covering machine or the like.

[0002]

2. Description of the Related Art In general, a traverse device is provided with a yarn path on the left and right sides when a yarn processed by a processing unit such as a covering machine is wound around a winding tube (winding core) at the winding unit. Conventionally, a traverse shaft is reciprocated from a take-up shaft via a cam box (mechanical type).

[0003]

However, what is important in the reciprocating travel of the traverse guide is that the traverse guide does not pass through the same place (location) (prevention of ribbon winding) and that the swing width is delicately changed (prevention of ear height). ) Is required, but if this is to be realized by a conventional mechanical method, there is a problem that the mechanism becomes complicated and the production cost increases.

[0004] The present invention has been developed in view of the above points, and it is an object of the present invention to provide a novel traverse apparatus which can realize the above operations simply and at low cost. .

[0005]

In order to achieve the above object, the present invention provides a forward / reverse running means using a servomotor as a drive source, and a traverse guide which is reciprocated by being pulled by the forward / reverse running means. A center detecting means for detecting the center of the swing width, a counter for counting the moving distance from the center detected by the center detecting means to the left and right, and comparing the data of the counter with the input data to switch the servo motor forward / reverse. The means is provided with a control means for outputting an operation signal, and the combination of a servo motor and a computer realizes high performance of ribbon winding prevention and ear height prevention.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a first embodiment of the present invention. FIG. 1 is a schematic explanatory view showing an overall image of the traverse device of the present application, FIG. 2 is a front view showing forward / reverse running means, FIG. 3 is a side view showing a relationship between a traverse guide and a winding tube, and FIG. (B) is a front view showing a change in the swing width of the traverse guide.

As shown in FIG. 1, a traverse device 1 of the present invention transfers a yarn S processed by a processing section (not shown) such as a covering machine to a winding tube (winding core) 3 at a winding section 2 thereof. When the wound ball T is formed by winding, the traverse guide 4 is swung right and left to provide a yarn path.

The traverse guide 4 is reciprocated by being pulled by forward / reverse traveling means 6 using a servo motor 5.
The forward / reverse running means 6 includes a servo motor 5 as shown in FIG.
A drive timing pulley 7 fixed to the output shaft 5a of
A traverse shaft 12 is connected to a slider 11 which can be slid along a guide rail 10 by being pulled by a timing belt 9 stretched between the driven timing pulley 8 and the driven timing pulley 8 fixed to the opposed shaft 5b. ing.

As shown in FIGS. 4A and 4B, the swing width H of the traverse guide 4 changes according to the inclination angle θ of the ruler member 13 with which the traverse guide 4 slides. That is, when the ruler member 13 is parallel to the traverse direction, the swing width H is wide as shown in FIG. 7A, but the swing width H becomes narrower as the tilt angle θ of the ruler member 13 becomes larger as shown in FIG. .

As shown in FIG. 3, the inclination angle θ of the ruler member 13 changes in accordance with the change in the winding diameter M of the winding ball T of the winding tube 3 which rotates in contact with the driving drum 14. That is, as the winding diameter M of the wound ball T increases, the inclination angle θ of the ruler member 13 increases accordingly.

The ruler member 13 is rotatable in a horizontal direction about a fulcrum 13a as shown in FIG. 4, and one end 13b of the ruler member 13 holds the winding tube 3 as shown in FIG. A short piece 15a extending in a hook shape from the base end side of the holding frame 15 is connected via a wire 15b, and the holding frame 15 is arranged around a support shaft 16 in accordance with a change in the winding diameter M of the ball T as shown in FIG. When rotated from the solid line position to the position indicated by the dashed line, one end portion 13b of the ruler member 13 is pushed forward,
Since it rotates in the horizontal direction about the fulcrum 13a, an inclination angle θ corresponding to a change in the winding diameter M of the winding ball T of the winding tube 3 is formed. The ruler member 13 is for changing the inclination angle θ to gradually reduce the swing width to form a conical winding.

The traverse guide 4 has a swing width H.
And moves left and right with the center P as the starting point. The center P of the swing width H is detected by the center detecting means 17. That is, the traverse guide 4 always moves toward the center P of the swing width H when the traverse device 1 of the present application is activated, and when the center P is detected by the center detecting means 17, the control means moves left or right from the center point. (CPU) 1
In accordance with the instruction of _No. 8, it moves by the necessary distances K ₁ and K ₂ .

The moving distances K ₁ and K ₂ are stored in the control means (CPU) 18 by the data input means 22 so that the ear height can be controlled. Reference numeral 19 denotes a pulse extracting means such as an encoder from a main shaft (take-up axis) of a covering machine or the like, and 20 is a speed pulse generating means for processing a pulse extracted by the pulse extracting means 19;
1 is a counter for counting the pulses generated by the speed pulse generating means 20.

The counter 21 has a traverse guide 4
Also starts moving when moving toward the center P of the swing width H, the counting of the machining pulse created by the speed pulse creating means 20 starts. However, when the center P is detected by the center detecting means 17, It becomes clear based on the reset signal from the control means 18, counts the pulses from the center again, and returns the data to the control means 18.

The control means 18 having received the data from the counter 21 transmits the received data to the input means 2 in advance.
2 is compared with the data (data (m / m) based on the reciprocating running pattern of the traverse guide) input by the control unit 2 and an operation signal is output to the forward / reverse switching means 23 of the servo motor 5 when the data match. Has become.

When the switching means 23 receives the operation signal from the control means 18, it activates the servo amplifier 24 to actually switch the rotation direction of the servo motor 5. Thereby, the left and right moving distances K ₁ and K ₂ from the center of the traverse guide 4 based on the reciprocating traveling pattern are defined.

The control means (CPU) 18 inputs speed data (twill angle) into the control means, so that the ratio of input to output pulses generated by the speed pulse generating means 20 is 1: 1 to 1 : 0 can be controlled, and the data is instructed to the servo motor 5 via the servo amplifier 24 to slightly change the traveling speed of the traverse guide 4 so that the yarn does not always pass through the same place (place). So that ribbon winding can be effectively prevented.

The control means (CPU) 18 is connected via an inverter 25 to a main controller 2 such as a covering machine.
6 and output a stop signal, RAN / STOP
A signal can be received.

Next, the operation of the traverse device 1 of the present application will be described. First, the necessary speed pulse is generated by controlling the speed pulse generating means 20 based on the speed data (twill angle) input to the control means 18.

The pulse created by the speed pulse creating means 20 is sent to a counter 21 and a servo amplifier 24. At this time, the counter 21 operates as a monitor of the servo amplifier 24.

The power of the servo motor 5 is turned on (started) by the operation of the servo amplifier 24. At the time of the start, the operation direction of the traverse guide 4 is controlled so as to be directed to the center P of the swing width H.

When the center P of the swing width H is detected by the center detecting means 17, the count of the counter 21 is cleared. Thereafter, the count from the center P to the left or right edge is counted. Is input to the control means 18 as true data.

The true control means 18 data received the compares the data entered by the input means 22 in advance, and actuating the switching means 23 at a match, reverses upon reaching the moving distance K ₁ or K ₂ .

Thus, the inverted traverse guide 4
When the center detecting means 17 detects that the head reaches the center P of the swing width H and reaches the center, the count of the counter 21 is cleared in the same manner as described above, and the count from the center P to the edge in the opposite direction is counted. Is performed, and the data is input to the control means 18, which is compared with the input data to invert the switching means 23 again. This operation is repeated.

[0025]

As described above, according to the present invention, the center of the swing width of the traverse guide which reciprocates by being driven by the forward / reverse running means and the forward / reverse running means using the servomotor as the driving source is detected. And a counter for counting the moving distance from the center to the left and right detected by the center detecting means, comparing the data of the counter with the input data and outputting an operation signal to the forward / reverse switching means of the servomotor. It is characterized by having a control means that performs
In the reciprocating travel of the traverse guide, there is an excellent effect that the control of the ribbon winding prevention and the ear height prevention can be easily realized at low cost.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view showing an overall image of a traverse device of the present application.

FIG. 2 is a front view showing forward / reverse running means.

FIG. 3 is a side view showing a relationship between a traverse guide and a winding tube.

FIGS. 4A and 4B are front views showing changes in the swing width of the traverse guide.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Traverse device of this application 2 Take-up part 3 Take-up tube (take-up core) 4 Traverse guide 5 Servo motor 6 Forward / reverse running means 7 Drive timing pulley 8 Driven timing pulley 9 Timing belt 10 Guide rail 11 Slider 12 Traverse shaft 13 Ruler member 14 drive drum 15 holding frame 15a short piece 15b wire 16 support shaft 17 center detection means 18 control means 19 pulse extraction means 20 speed pulse creation means 21 counter 22 input means 23 forward / reverse switching means 24 servo amplifier 25 inverter 26 main controller S Thread T Roll ball H Swing width M Roll diameter K ₁ , K ₂ Travel distance

Claims (1)

[Claims] 1. A forward / reverse running means using a servomotor as a drive source, a center detecting means for detecting a center of a swing width of a traverse guide which is reciprocated by being pulled by the forward / reverse running means, and the center detecting means. And a control means for comparing the data of the counter with the input data and outputting an operation signal to the forward / reverse switching means of the servomotor. Traverse device.