JPS5882953A - Yarn winder with taper builder - Google Patents

Abstract

PURPOSE:To enable the traverse width of a yarn guide to be set to a desired relation by moving a mover engaging a taper builder arm on the basis of a preset movement relationship through a support member of this mover. CONSTITUTION:The rotational movement of a motor 64 controlled by a controller 66 is converted to a reciprocating one by a feed screw 64 and transmitted to a mover 61 through a support member 62. Also, the mover 61 reciprocates in a curved cam surface 59 area of a taper builder arm 56 to produce a desired taper pattern and gives a desired swing to the taper builder arm 56. Thus, the traverse width of a yarn guide engaging the swigning taper builder arm 56 is controlled from the beginning and to end of yarn winding to provide a deisred taper pattern.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a yarn winding device that forms a taper at the end of a yarn package. Therefore, the present invention relates to an improved yarn winding device with a taper builder, which has a uniform yarn package form for each spindle and has excellent operability.

Many bulky yarns, such as false-twisted yarns, are used for example.

Since the residual shrinkage force after being wound around the bobbin is large, the end face of the yarn package tends to bulge out, which has a negative effect on the unwinding of the yarn in the subsequent process. therefore.

Usually, a method is adopted in which a suitable tapered end is formed in the yarn package and the yarn is wound.

And the conventional taper end used to form a taper end in this yarn package.

For example, JP-A No. 5'0-12352;
This is a configuration found in JP-A No. 1-3818, Japanese Unexamined Patent Publication No. 124344-1980, and the like. What these conventional taper pilders have in common is a cradle arm that holds the yarn package at its tip, is rotatably supported at its rear end, and swings as the winding diameter of the yarn package increases after the start of winding. is used as the driving source for the taper pilder.

In other words, the cradle arm and taper builder are one-to-one.
Because they are mechanically connected due to

The formation of the end face of the thread package depends on the cradle arm, which swings for each weight, as the winding diameter of the thread package grows.

Therefore, even if each of the multiple spindles starts winding at any time, the
Since the yarn package after the end of winding can have the same form for each weight, this method was usually adopted in conventional operating systems in which threading was carried out sequentially and winding was started sequentially by one hand.

However, the conventional taper builder system in which the drive source is a cradle arm that swings depending on the growth of the winding diameter of the yarn package has the following drawbacks.

(1) The connection between the cradle arm and the thread builder itself has a negative effect on the contact pressure between the pressure roller and the thread cage, and conversely, the vibration of the thread thread cage is caused by the swinging of the cradle arm. This acts on the taper builder, disturbs the winding width of the thread cage, and has an adverse effect on the form.

+21 The taper pattern setting is 6 or 5 for each weight.
Since this is done by selecting the mounting positions of individual members, it is extremely difficult to make all the weights uniform and to change conditions.

(3) The Taber pattern is created by a combination of nine circular arc movements, and cannot be arbitrarily selected steplessly.

(4) The number of parts is large and the cost is high.

(5) The connecting bar connecting the cradle arm and the taper builder is an obstacle to compact device design.

In addition, in recent years, as a measure to improve productivity, reduce the amount of waste yarn generated, and reduce labor costs, we have introduced a system in which all threads are loaded onto the bobbin for one winding at the same time by mechanical force, thereby making it possible to start one winding and fully wind the winding. In particular, with the adoption of a new operating system based on the so-called take-up and simultaneous start, which completes the process at full spindle and simultaneous,
The above-mentioned drawbacks of the conventional taper builder system are becoming more and more significant.

The present invention provides an improved yarn winding device with a taper builder that is fundamentally different from the conventional yarn winding device with a taper builder that uses a cradle arm as a drive source.
It solves all of the above-mentioned drawbacks and exhibits extremely remarkable effects when used in the recently developed winding-simultaneous start operation system. i.e. 1
An improved yarn winding device with a taper builder according to the present invention.

(a) A spindle that supports the bobbin that winds the thread.

(b) A scroll cam roller provided opposite the spindle.

(c) A thread guide holder movably supported in the cam groove of the scroll cam roller and having a thread guide section at one end and a retaining section at the other end.

B) A taper builder arm that is swingably supported and has a guide groove that movably supports the engaging portion of the thread guide holder.

(e) A mover engaged with the tapered builder arm in a relationship that imparts a swinging motion to the tapered builder arm.

(f) A support member that supports the mover.

(G) A motion setting element that moves the support member based on a preset motion relationship in order to maintain the traverse width of the yarn guide in a desired relationship from the beginning of winding to the end of winding 9 of the yarn.

In other words, the taper builder system of the present invention having the above configuration does not use the cradle arm, which swings depending on the growth of the winding diameter of the yarn package, as the drive source for the hilder, as in the conventional case, but instead uses the cradle arm, which is engaged with the taper builder arm, as the drive source for the hilder. The traverse width of the thread guide supported on the Taber builder arm via the thread guide holder is adjusted to a desired relationship by moving the mover based on the preset movement relationship via the support member of the mover. It can be set so that

Next, the present invention will be explained in detail based on an embodiment shown in the drawings, but first, FIG. This will be explained using a schematic configuration diagram.

In FIG. 1, a yarn 1 (for example, unwound from a raw yarn package and heated to a desired degree as necessary) is shown.

The drawn, false-twisted, oil-treated yarn) is traversed by a yarn traverse element 4 that engages with a common traverse element drive shaft 6, while being traversed by a winding bobbin mounted on a winding spindle 7. It is wound up.

As the yarn 1 is wound onto the bobbin, the radius of the yarn package 8 gradually increases, and if this continues, the yarn winding speed will gradually increase. In order to control the spring winding speed of the yarn to be substantially constant from the start to the end of winding the yarn, the rotation speed of the take-up spindle 7 is adjusted as the radius of the yarn package 8 increases. need to be reduced. As a means for this purpose, the apparatus shown in FIG.

Tension detection rotation speed control means is provided. This means applies periodic active vibration to the yarn guide 11 provided upstream of the traversing fulcrum guide 6, the yarn tension detection 4612 provided between these guides 3 and 11, and the running yarn. The tension values detected by the yarn deflection means 16, the representative tension signal generating means 61, and the yarn tension detection end 12 are set to a set tension value selected so that the winding speed of the yarn on the bobbin is constant. Tension determination element to be compared 14. The tension determination element 14
It is comprised of a speed controller that controls the rotation speed of the electric motor 90 and increases or decreases the rotation speed of the bobbin rotation drive shaft according to the determination result, and a speed change means 15 that controls the rotation speed of the electric motor 9.

The details of this tension detection rotation speed control means are disclosed in Japanese Patent Application Laid-Open No. 54-9
Publication No. 3137 1% Publication No. 1987-93142.

JP-A-54-112235, British Published Patent Publication No. 2,015,589 and British Published Patent Publication No. 2.0
No. 29,023.

The yarn tension detection end 12 is attached to several of the many winding spindles. For example, if 200 winders are lined up, yarn tension detection ends are attached to 10@A.

The output force signal from each yarn tension sensor 12 is sent to means 61 for producing a representative tension signal.

As an implementation means, each yarn tension detection end 12
There is a means to average the signals from the

The averaged representative tension signal is sent to the tension determination element 14. As another means, a plurality of thread tension detection ends 1
There is one that selects one of the output signals from 2 and sends it to the tension determining element 14. The deviation output between the representative tension signal from the tension determination element 14 and a predetermined control setting signal is
The signal is sent to a speed change means 15 that controls the rotation speed of the electric motor 9.

The output from the speed change means 15 is sent to the electric motor 9, and the speed of the electric motor is changed.

The winding spindles 7 of the plurality of winders are simultaneously driven by a yarn package common drive shaft 53 via a timing belt 62. The yarn package common drive @66 is driven by the electric motor 9.

Next, a means for maintaining a constant wind ratio will be explained. A pulse generator 21 is attached to the yarn package common drive shaft 33 and generates 28P pulses in one rotation. A pulse pickup 22 is provided opposite the pulse generator 21, and the pulse generator 2
Pick up the pulse generated from 1. On the other hand, a pulse generator 25 is also attached to the traverse element drive shaft 6 and generates Z and R pulses in one rotation. A pulse pickup 24 is provided opposite the pulse generator 26 and picks up pulses generated from the pulse generator 25. pulse pickup 2
The pulse signals picked up by the pulse pickup 2 and the pulse pickup 24 are input as electrical signals to the wind ratio control element 34 and compared. In response to the change, a control signal is output from the wind ratio control element 64 so that the wind ratio becomes a constant value, and the toranose element drive shaft 6 is rotationally driven via the speed change element 25. The rotation speed of the electric motor 10 is controlled.

2 and 6 are detailed views of the winding section of the yarn winding device illustrated in FIG. 1, showing a plan view and a side view, respectively.

The yarn 1 is formed as a thread 7C cage 8 which passes through a traverse element 4 driven by a traverse element drive shaft 6. It is a roller bail that fixes the yarn path constant while applying the yarn, and participates in the swinging of the cradle arm as the diameter of one winding increases.

The yarn looseness screw 8 is connected to a winding nozzle/window driven by timing pulleys 41 and 42 and timing belts 43 and 44.
It is being held at $7.

The timing pulley 42 is attached to a common drive shaft 63 for the two yarns, and the other timing pulley 41 is attached to a swinging fulcrum shaft of the cradle arm 45. The conventional technique builder in a spindle drive type yarn winding machine configured as described above is driven via a bar (not shown) that engages with a cradle arm that swings as the winding diameter increases. It has become.

The yarn winding machine shown in FIG. 1 is effectively used when multiple spindles are operated at the same time, such as a draw winder or a rewinding machine. 1
A specific embodiment will be described in which the present invention is installed in the spindle drive type yarn winding machine shown in the figure.

That is, FIG. 4 is a schematic diagram of a specific embodiment in which the taper builder according to the present invention is incorporated into the yarn winding device shown in FIG. 1. This is a part of a yarn winding device in which a plurality of spindles are continuously arranged, and shows a mechanism and a control system including a drive source for a simultaneous taper builder provided corresponding to each spindle.

In FIG. 4, a scroll cam roller 51 is provided opposite the yarn package 8, and a spiral cam groove 52 of the scroll cam roller has a yarn guide portion 53 at one end. A thread guide holder 55 having an engaging portion 54 at the other end is supported so as to be freely driven by the cam groove. Scroll cam roller 51
The tapered builder arm 56 adjacent to has a fulcrum 57 at the center of the arm, and one end of the builder arm 56 has a fulcrum 57 at its center, and one end of the builder arm 56 has a fulcrum 57 at its center.
8, and on the cam curved surface 59 provided at the other end, a slider 61 is supported by a support member 62 in such a manner that it moves while pressing the cam curved surface and imparts a swinging motion to the taper pilder arm. is engaged.

Further, this taber builder arm 56 is provided with a guide groove 66 in which the engaging portion 54 of the thread guide holder 55 engages and slides therein.

Mover 61. An electric motor 64 is used as a drive source as a means for imparting reciprocating motion in the longitudinal direction of the array of winding devices to the support member 62 that supports the mover 61, and is controlled by a controller 66, which will be described later. This rotational motion of the electric motor 64 is converted into the reciprocating motion by a feed screw 65 (preferably a ball screw in terms of efficiency and accuracy), and is transmitted to the movable element 61 via the support member 62. That is, the mover 61 reciprocates on the cam curved surface area of the Taber builder arm so as to produce a desired taper pattern, thereby imparting desired swinging motion to the Taber builder arm. therefore.

From the beginning to the end of winding the thread, this new mechanism controls the traverse of the thread guide that engages with the swinging taper pilder arm, resulting in the desired taper pattern.

Next, a description will be given of how the rotational movement of the electric motor 64, which is the driving source of the taper builder, is controlled. In FIG. 1, which has already been explained, the pulse signal related to the rotational speed of the yarn package detected by the first pulse energator 21 attached to the yarn package common drive shaft 63 and picked up by the pulse pickup 22, that is, the 1, the wind ratio control element 54
The same electrical signal applied to the wind ratio control element 34 is also applied to the controller 66 by branching the circuit to the wind ratio control element 34. Based on this yarn package rotation speed information, the controller 66 indicates the gradual decrease rate of the yarn package rotation speed from the start of winding to the end of winding, and at the same time calculates N/No, which is the reciprocal of Hani, which indicates an increase in the winding diameter. By calculating values.

Always obtain the minato diameter information of the yarn package. here.

No is the initial rotational speed of the yarn package at the beginning of winding, which is stored in advance in the controller, and N is the rotational speed of the yarn package after winding for an arbitrary period of time.

On the other hand, the controller 66 has the function of issuing a command to the pulse motor driver 67 based on the winding diameter information of the yarn paracage to set any desired taper pattern.

Here, since any taper pattern is created from the correlation between the winding diameter and the winding width, setting the taper pattern is nothing more than setting the required winding width corresponding to each winding diameter. .

In addition to the taper pattern setting function, the controller 66 also has an end face breaking pattern setting function, and can form a tapered end while performing end face breaking.

FIG. 5 shows a locus at the stroke end of a traverse guide for forming a tapered end according to the configuration of FIG. 4 according to the present invention.

Broom Figure 5 (a) is a pattern when the end face is not broken. If viewed minutely, the taper formation is a step-like locus.

That is, when the change in the winding diameter of the thread cage '8 reaches a preset value of 6L (the setting value can be adjusted arbitrarily), the controller 66 sets the turn-back position of the thread cage '8 to (b,). Make it narrower. Furthermore, the change in winding diameter (
When a p l is reached, narrow the folding position of the toranosu guide by (b2). below.

Every time the winding diameter changes from (a,) to Can), change the turning position of the torano (-sguide) to (b,)... (b
N) and narrow. Here, (bl) to (corresponding to each winding diameter)
By setting the value of b,) to the desired pattern,
Any desired taper angle can be obtained.

FIG. 5(B) shows a pattern in which a tapered end is formed while breaking the end face. (Co), (C,
).

(D), (El is a value set in advance in the controller.

When the end face breaking operation starts, the amplitude of the traverse guide narrows at the set speed (Oo+, then widens (C4). At this time, the value ΔC of (C!ol−(C!,)
is the decrease in the winding width commensurate with the increase in the winding diameter during the end face breaking operation.

(D+ indicates the area where the end face breaking is in operation, (E'1 indicates the area where the end face breaking is stopped.) The operation of the taper builder in the area (F,) is the same as in Fig. 5 (a). Set values (C, 1 to (E3) are set to appropriate values depending on the yarn type and winding conditions.

The above description has been made of the case where the taper end and end face breaking are driven by electrical control as shown in Fig. 4, but the invention is not necessarily limited to this, and for example, mechanical operation as shown in Fig. 6 is also used. It is possible. That is, FIG. 6 is a schematic configuration diagram of a taper builder and a drive section for performing end face breaking by mechanical operation. When the builder cam 68 that determines the taper pattern is driven by the gear motor 9 for driving the team builder, and the reciprocating motion of the cylinder 70 for driving the end face breaking is added, the taper builder and end face breaking operations are common to each traverse device. The support member 62 for transmitting information to the builder cam 6
The pattern No. 8 and the end face breaking motion are combined and transmitted to each traverse device.

As mentioned above, the present invention does not use the cradle arm, which swings depending on the growth of the winding diameter of the thread package, as the driving source of the Chihahilder, but instead uses the mover engaged with the Taber builder arm as the drive source for the mover. An electric motor is provided to move the motor according to a preset movement relationship via a supporting member, and this is used as a driving source, so that the following effects are achieved.

(1) When setting or changing the conditions of the taper pattern or end face breaking pattern, this can be done by changing the setting values of the controller common to all bells or changing the pattern of the drive source common to all weights, compared to the conventional method that required adjustment of each weight. The number of operations is significantly reduced compared to the previous method, and the yarn package form of all spindles can be made uniform.

(The controller or taper pattern that is common to all 21 spindles allows conditions to be set freely, and has a wider degree of freedom than the conventional method, which only allows patterns based on combinations of one circular arc movements.

(3) Since the configuration is simplified and the number of parts is reduced, costs can be reduced and smart equipment design can be achieved.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of an example of a yarn winding device to which a taper builder according to the present invention can be effectively attached. 2 and 3 are detailed views of the winding section of the yarn winding device illustrated in FIG. 1, and are a plan view and a side view, respectively. FIG. 4 is a schematic configuration diagram of a specific embodiment in which the Taber end according to the present invention is incorporated into the yarn winding device shown in FIG. 1@1. Figure 5 is 1
FIG. 5 is a schematic configuration diagram of a stroke end of a temporary traverse guide forming a taber end according to the configuration of FIG. 4 according to the present invention. [Explanation of symbols] 7: Winding spindle 11: Yarn guide 21.25: Pulse generator 22.24 Nibal pickup 25: Speed change element 51 Ni roll cam roller 52: Cam groove 55: Yarn guide holder 56: Taper builder arm 59 Ni arm curved surface 61: Mover 62: Support member 63 Ni guide groove 64 Two electric motors 65 Two feed screws 66: Controller 67: Pulse motor driver 68 = Builder cam 69: Guard motor 70 Niji cylinder Fig. 1 Hayabusa Fig. 21

Claims (1)

[Claims] (a) A spindle that supports a bobbin for winding yarn. ←) A scroll cam roller provided opposite the spindle. (c) An unguided holder movably supported in the cam groove of the scroll cam roller and having a thread guide portion at one end and an engaging portion at the other end. B) A taper builder arm that is swingably supported and has a guide groove that movably supports the retaining portion of the thread guide holder. (e) A mover engaged with the taper pilder arm in a relationship that imparts a rocking motion to the taper builder arm. (f) A support member that supports the mover. (G) With a taper builder comprising a movement setting element that moves the support member based on a preset movement relationship in order to maintain the traverse width of the yarn guide in a desired relationship from the beginning to the end of winding the yarn. Yarn winding device.