JPS5997968A - Winder - Google Patents

Abstract

PURPOSE:To enable simultaneous variation of the taper end forming pattern for each of weights, by a method wherein a driving device, having a normal reverse rotating and braking mechanism for collapsing an end surface, and a taper end forming driving device are coupled to the drive shaft of the traverse width varying mechanism of a traverse device. CONSTITUTION:A take-up bobbin mounting cradle 1 and a traverse device 2 corresponding to the cradle 1, are respectively mounted along the longitudinal direction of a machine bed, a drive shaft 24 of the traverse width varying mechanism of each of traverse devices 2 is installed through each traverse device box. A driving device, having a normal reverse rotating and braking mechanism (including a double clutch brake unit 18) for collpasing an end surface, and the driving device (including a screw shaft 29 coupled to a stepping motor 27, and a proximity switch 31 for controlling movement of a shaft screwed to the screw shaft 29) of a taper end forming taper builder arm 9 are coupled to the drive shaft 24.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a winding machine for forming a taper at the end of a yarn package.

More specifically, the present invention relates to a winding machine that can obtain a uniform yarn package with a simple mechanism and has excellent operability.

In general, bulky yarns such as false-twisted yarns have a large residual shrinkage force after being wound around a bobbin, so that the end faces of the yarn package swell, resulting in poor unwinding properties of the yarn in subsequent processes. In order to prevent this bulging phenomenon, the yarn package is wound with an appropriate tapered end formed therein. In addition, an end face breaking operation is performed to prevent twill drop or end yarn pooling at the end of the package, which occurs when yarn is wound at high speed.

A winding machine for forming a tapered end on the yarn package and also breaking the end face is disclosed in, for example, Japanese Patent Laid-Open No. 50-12352 and Japanese Patent Publication No. 51-3818.

These winding machines hold a winding bobbin at one end of a cradle, and the other end is rotatably attached to a machine base, and after winding starts, the machine swings as the winding diameter of the yarn increases on the bobbin. A tapered end is formed by the movement of the cradle, and the traverse width is changed by a cam attached to an electric motor or by a forward/reverse rotating electric motor and a screw mechanism. However, in a winding machine with such a configuration, the cradle and the tapered end forming mechanism are integrally connected, so vibrations generated during winding are transmitted to the tapered end forming mechanism via the cradle, disturbing the traverse width and damaging the package. It has a negative effect on the form. Further, when setting the taper pattern, it is done by selecting the mounting positions of three to five members for each weight, so it is extremely difficult to make all the weights uniform and to change conditions. Furthermore, since a tapered end forming mechanism and an end face breaking mechanism are provided, the number of parts is large, which hinders the design of a compact device.

The present invention was obtained as a result of studies aimed at solving all the drawbacks of the winding machine as described above.

In other words, in the "main departure", a plurality of take-up bobbin mounting cradles and corresponding traverse devices are arranged along the longitudinal direction of the machine, and the drive shaft of the traverse width changing mechanism of the traverse device is connected to each traverse device box. The present invention provides a winding machine in which a drive device having a forward/reverse rotation and braking drive mechanism for breaking the i-plane and a drive device for forming a tapered end are connected to the drive shaft. It is.

An embodiment of the winding machine of the present invention is shown in FIG. 1, and its configuration will be explained with reference to the drawings.

A cradle 1 rotatably holds a winding bobbin B, and is arranged in multiple stages along the longitudinal direction of a machine stand (not shown). Reference numeral 2 denotes a traverse device, which is provided opposite to the cradle 1, respectively.

3 is a traverse box, and a shaft 4 passes through the box and is rotatably assembled therein. A scroll cam roller 5 has a spiral cam groove 5a on its circumferential surface and is fixed to the shaft 4. A thread kite holder 6 has a thread guide portion 7 at one end and an engaging portion 8 at the other end, and is engaged with the cam groove 5a. 9 is the taper builder arm and pin l
The cam curved surface 9a rotates around O as a fulcrum, and a guide groove 9b is provided along the longitudinal direction of the cam curved surface 9a at one end thereof. The engaging portion 8 of the thread guide boulder 6 is engaged with the guide groove 9b. 11 is a spring, and taper builder arm 9
is pressed against the moving member 13. Reference numeral 12 denotes a shaft that passes through the traverse box 3 and is assembled so as to be reciprocally movable. Reference numeral 13 denotes a moving member which is fixed to the shaft 12 and comes into contact with the cam curved surface 9a of the taper builder arm 9. 14 is an electric motor with a reduction gear, and a sprocket 15 is fixed to its output shaft. A sprocket 16 is fixed to the input shaft of the double clutch/brake unit 18.

Reference numeral 17 is a chain, which is stretched between sprockets 15 and 16. 19 is a sprocket, which is attached to the outgoing shaft of the double clutch brake lever (18). A sprocket 2o is rotatably attached to the bracket 22 via a bearing 23. A screw hole is bored in the axis of the sprocket 2o. 21 is Cheno and Sprocket
-19 and 20 are stretched. The shaft 24 is moved in the axial direction by a threaded sprocket 20, and one end thereof is connected to the shaft 12 via a coupling 25. The shaft 24 is provided with a sliding key or the like so that it does not rotate relative to the bracket 22. Reference numeral 26 denotes an operating piece, which is fixed to the end of the shaft 24. 27 is a stepping motor, which is connected to a screw shaft 29 rotatably attached to a bracket 28. The moving piece 30 is screwed onto a screw shaft 29 and moves in the axial direction by rotation of the shaft 29. A proximity switch 31 is attached to the movable piece 30 and operated by the actuating piece 26.

A limit switch 32 is attached to the bracket 28 so as to be movable in the same direction as the movable piece 30, and is used to determine the initial winding width. Limit switch 33.3
Reference numeral 4 operates by an operating piece 26 attached to a bracket 28 and fixed to the shaft 24 to regulate the amount of movement of the shaft 24.

A control device 35 includes a setting device, a comparator circuit, a timer, an operation command circuit, etc., and controls the double clutch/brake unit 18, the stepping motor 27, etc. Reference numeral 36 is a scale plate indicating the initial winding 14, and is used for positioning the limit switch 32.

The winding operation in the winding machine having the above configuration will be explained.

First, the limit switch 32 is manually moved according to the scale plate 36 to set the initial winding width.

Next, the stepping motor 27 is operated to rotate the screw shaft 29, and the moving piece 30 operates the limit switch 32 and moves it until it stops. After the above operation is completed, the control device 3
5, input the yarn winding speed, taper amount Cr, winding time, end face breaking time x end face breaking stop time Z, etc., respectively.

Next, each drive device of the winding machine is started to rotate the winding bobbin B of the cradle l, and at the same time, the scroll cam roller 5 is rotated to cause the yarn guide holder 6 to reciprocate at a predetermined speed. In this state, each thread is threaded at a predetermined position, and then the thread is wound around the bobbin B of the cradle 1 by traversing the thread using the thread guide section 7.

First, the tapered end forming operation will be explained.

The control device 35 sends an operation command signal to the stepping motor 27 to rotate the stepping motor 27 intermittently so as to form a predetermined taper based on a preset taper amount Cr. When the stepping motor 27 rotates, the proximity switch 31 is moved in the A direction together with the moving piece 30 screwed onto the screw shaft 29. The proximity switch 31 is used as a reference for setting the traversing and turning locus for forming the tapered end of the actuating piece 26. Therefore, when the proximity switch 3 moves in the A direction, the folding operation position of the actuating piece 26 also moves in the A direction.

This operation will be explained together with the end face breaking operation.

By moving the folding operation position of the actuating piece 26 in the A direction, the shaft 24 to which the actuating piece 26 is attached moves in the A direction, and the moving member together with the shaft 12 connected by the coupling 25] 3 is a taper builder. Cam curved surface 9 of arm 9
The taper builder arm 9 is moved in the direction A along the arrow a to rotate the taper builder arm 9 using the pin 10 as a fulcrum. As the taper builder arm 9 rotates, the thread guide section 7 of the thread guide holder 6 is tilted toward the center of traversing by the engaging portion 8 that engages with the guide groove 9b, and the folded section topping motor 27 is intermittently rotated. By doing so, from the position of C2...an, respectively b2
. . . While repeating the movement and stopping to the position bn, the traverse width gradually narrows in a stepwise manner, and when the predetermined winding amount is reached, the predetermined taper amount Cr is reached.

Next, the end face breaking operation will be explained.

An operation command signal is sent from the control device 35 to the electric motor 14 with a reduction gear based on a preset end face breakage amount l to rotate the sprocket at a predetermined speed)15. ', 16 and the input shaft of the double clutch/brake unit 18 via the chain. Next, an operation command signal is sent to the double clutch/brake unit 18 and the forward rotation clutch 18
Sprocket 19 fixed to the output shaft with a turned on
is rotated for a preset amount of time. At this time, the reverse rotation clutch 181] and the brake 18c are in an OFF state.

When the sprocket 19 rotates, the sprocket 20 is rotated via the chino 21, and the shaft 12 is moved in the A direction together with the shaft 24. When the shaft 12 moves, the moving member 13
The taper builder arm 9 is also moved in the A direction along the cam curved surface 9a of the taper builder arm 9, and the taper builder arm 9 is rotated about the pin 10 as a fulcrum. When the taper builder arm 9 rotates, the thread guide portion 7 of the thread guide holder 6 is inclined toward the traversing center side by the engaging portion 8 engaged with the kite groove 9b, and the trajectory of the folded portion is as shown in FIG. dl from the C1 position to
decrease towards the position.

The set end face breakage amount, that is, the preset X
When time elapses, an operation command signal is sent from the control device 35 to the forward rotation clutch 18a, and at the same time, the reverse rotation clutch 18-
b, turn the forward rotation crankshaft 1.8a OFF, and turn on the reverse rotation clutch 181 to instantly rotate the sprocket 19 in the reverse direction. At this time, the brake 18c is in an OFF state. When the sprocket 19 rotates in the opposite direction, the sprocket 20 rotates in the opposite direction via the chain 21. When the sprocket 20 rotates in the opposite direction, the shaft 12 and the shaft 24 move toward the mouth. When the shaft 12 moves, the moving member 13 moves toward the mouth along the cam curved surface 9 of the taper builder arm 9, and rotates the taper builder arm 9 in the opposite direction using the pin 0 as a fulcrum. When the taper builder arm 9 rotates, the thread kite part 7 of the thread guide holder 6 is tilted to the opposite side from the traversing center by the engaging part 8 engaged with the kite groove 9b, and the trajectory of the folded part is changed to dl in FIG. It increases from the position to the position c1'. When the shaft 24 moves toward the mouth due to the rotation of the sprocket 20 and the operating piece 2G fixed to the shaft 24 operates the proximity switch 31 and a detection signal is sent to the control device 35, the control device 3
5 sends an operation command signal to the reverse rotation clutch 18b and at the same time sends it to the brake 18C to turn the reverse rotation clutch 18b OFF.
F and turns on the brake 18c to instantly stop the rotation of the output shaft to which the sprocket 19 is fixed. At this time, the forward rotation clutch 18a is in an OFF state, and even though the input shaft is rotating, the output shaft is not rotating and is stopped.

The ON time of the brake 18c is set based on the form of end face breakage, and when the set time Z has elapsed, an operation command signal is sent from the control device 35 to the brake 18C and also to the forward rotation clutch 18a, and the operation command signal is sent to the brake 18C.
is turned OFF, and the forward rotation crank 18a is turned ON.
1. The output shaft to which the sprocket 19 is fixed is rotated in the forward direction. When the sprocket 19 rotates in the forward direction, the sprocket 20 is rotated through the chino 21 and the shaft 12 is moved in the A direction together with the shaft 24 from the position C1 in FIG. 3. Perform the same operation as when moving to the dl position and move from the C2 position to d2
The above operations are repeated in sequence until a predetermined amount of winding is achieved.

As described above, the maximum traverse width at each point in time is determined by the amount of movement of the shaft 24 in the mouth direction and the position at which the operating piece 26 fixed to the shaft 24 operates the proximity switch 31. Therefore, as the proximity switch 31 is intermittently moved in the A direction by the stepping motor 27, the traverse width gradually narrows while breaking the end face, forming a stepped tapered end locus, as shown in FIG.

When the bobbin is fully wound and the yarn is wound onto a waist roller (not shown) and each winding operation is completed, the control device 35 sends an operation command signal to the stepping motor 27, which rotates it in the opposite direction and limits the moving piece by 3 degrees. It is moved until it contacts the switch 32 and returned to the initial winding width setting position to complete one cycle of winding operation.

Although the present invention can be practiced as described above, it is not limited to the examples.

・The drive device that reciprocates the drive shaft of the traverse width changing mechanism consists of a double clutch/brake unit consisting of an electric motor, electromagnetic forward/reverse rotation clutches and brakes, as well as a fluid cylinder, rack/pinion, and brake. It can also be made into a device.

0 A sprocket is screwed onto the drive shaft to transmit the rotation of the drive device to change the motion to a reciprocating motion, but it is also possible to screw a gear onto the drive shaft and transmit the rotation through a toothed belt, as well as through a gear mechanism. be able to.

・For the formation of a tapered end, the traverse width may be linearly decreased (the rate of decrease is constant) depending on the yarn quality, yarn thickness, winding speed, etc., but as shown in Fig. 5, the end surface bulges out. Therefore, if the traverse width is changed to a curved shape with a concavity of σ relative to the reference line 1 in accordance with the winding amount (by changing the reduction ratio), a package with a beautiful end face as shown by i can be obtained. It will be done.

The amount of edge surface breakage is determined by the relationship between the amount of selvage during winding and the amount of twill drop, etc. The amount of end surface breakage es at the beginning of winding is small and gradually increases, and the amount of end surface breakage is approximately constant l from the intermediate winding amount. If the angle is set to 0, a pan cage with a beautiful end surface will be obtained.

That is, the end face breaking pattern from the beginning of winding to the end of winding is stored in advance in the control device, and clutches a1, clutch 1] and brake C are turned on and off according to the winding time.
The end face can be broken by changing the OFF time.

・The proximity switch may be attached to a movable piece screwed onto the screw shaft, or it can be screwed directly onto the screw shaft.

As described above, the present invention provides the following effects by connecting the drive shaft of the traverse width changing mechanism of the traverse device with a drive device having a forward/reverse rotation and braking mechanism for breaking the end face and a drive device for forming a tapered end. play.

(a) The tapered end formation pattern can be changed simultaneously for each spindle, and a uniform yarn package can be obtained.

(b) The tapered end formation pattern and the amount of end face collapse can be arbitrarily selected.

(c) The initial winding width and the winding position can be changed simultaneously and easily.

2) Even for high-frequency forward and reverse rotation operations, it is only necessary to change the clutch, resulting in a longer service life compared to conventional electric motors that rotate in forward and reverse directions. Moreover, since the switching time from normal rotation to reverse rotation is short, a /za package with a beautiful end face can be obtained.

(Determination of the traverse width for forming a taper at the end of the feather hackage is not based on the winding diameter of the package but on the winding time. Therefore, as shown in Figure 6-1. Even if the winding tension of a certain weight increases and the winding diameter becomes smaller than the standard winding diameter, the winding tension decreases because the traverse width Ls becomes smaller than the standard traverse width Lm, and the winding diameter decreases. It acts in the direction of lowering the tension.Also, as shown in Figure 6-2, even if the winding tension decreases and the package winding diameter increases, the traverse width Lx will be smaller than the standard traverse width Lm. This increases the winding tension, which acts in the direction of increasing the winding tension.Therefore, it is possible to obtain a package with a small winding diameter error.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing one embodiment of the winder of the present invention. FIG. 2 is a schematic diagram showing the locus at the stroke end of the traverse guide for forming the tapered end. Figure 3 shows the trajectory of the end face breaking and the turning on of the clutch and brake of the double clutch/brake unit. It is a schematic diagram showing OFF operation. FIG. 4 is a schematic view showing the trajectory when the end face is broken while forming the tapered end. FIG. 5 is a schematic diagram showing the stroke end locus of the traverse guide when forming the tapered end and the form of the resulting package. FIG. 6 is a schematic diagram showing the relationship between the winding diameter and the traverse width. l: Cradle 2: Traverse device 3
: Traverse box 4, 12.24 : Axis 5
: Scroll cam roller 6 : Thread guide halter
7: Yarn guide part 8: Engagement part 9: Taper builder arm 10: Pin 11 spring 13: Moving member 14: Electric motor with reducer
15, 16, 19, 20: Sprocket 22, 28 Bracket 23: Bearing 25: Coupling 26: Operating piece 27: Stepping motor 29: Screw shaft 30: Moving piece 31: Proximity switch 32.33.34: Limit switch 35
: Control device applicant Toshi Engineering Co., Ltd. Figure 2 18a 18b 18c Figure 6 (6-1) (6-2) Commissioner of the Japan Patent Office Kazuo Wakasugi 1, Indication of case 1982 Patent Application No. 206720 No. 2, Name of the invention Winder 3, Relationship with the case of the person making the amendment Patent applicant address 3-4-18 Nakanoshima, Kita-ku, Osaka (No. 2, Lord 4, Mikata Building) Date of amendment order In-house 5. Number of inventions to be increased due to amendment. Letter O, page 5, line 3, ``The surface 9a is in the longitudinal direction'' is corrected to ``the curved surface 9a is provided, and also in the longitudinal direction.'' (2) Page 6 of the specification "Bracket 28" on line 17 is corrected to "Machine frame (not shown) J. (3) Figures 1 and 4 of the drawings are corrected as shown in the attached sheet.

Claims (2)

[Claims] (1) A plurality of take-up bobbin mounting cradles and traverse devices corresponding to the cradles are arranged along the longitudinal direction of the machine base, and the drive shaft of the traverse width changing mechanism of the traverse device is passed through each traverse device box. This winder is patented in that the drive shaft is connected to a drive device having a braking mechanism for forward and reverse rotation of end face scraps, and a drive device for forming a tapered end. (2) Claim 1, characterized in that the driving device for forming the tapered end is constituted by a screw shaft connected to a stepping motor and a proximity switch for regulating shaft movement screwed onto the screw shaft. winding machine.