JPH05238645A - Filament take-up method and filament take-up machine - Google Patents

Abstract

PURPOSE:To allow vibration to be suppressed to a minimum in a filament take-up machine for taking up plural filaments onto plural packages simultaneously while letting them traverse by installing traverse shoes in the state of each of them being shifted in phase by the specified angle. CONSTITUTION:A traverse device is mainly formed of a cam shaft 17 with traverse cams 16 formed in the number corresponding to the number of packages; traverse shoes 18 respectively mounted to the traverse cams 16; and traverse guides for supporting the traverse shoes 18 slidably in the axial direction of the cam shaft 17. Since filaments are taken up in the state of the traverse shoes 18 being shifted in phase by 360 deg. w/n between the respective packages, each traverse shoe 18 is installed being shifted in phase by 360 deg. w/n, where (w) is the turns of the traverse cam 16 and (n) is the number of packages.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn winding machine having an improved traverse cam installation structure for suppressing vibration of a package due to ribbon winding.

[0002]

2. Description of the Related Art A yarn winding machine is constructed such that a plurality of yarns are simultaneously traversed by a traverse shoe on a traverse cam and wound into a plurality of packages at the same time. It is known that when a package is formed by this yarn winding machine, a ribbon winding is formed in the formed package due to the interaction between the winding diameter and the traverse.

The relationship between the ribbon winding and the winding diameter (diameter) of the package is as follows.

D = 2T / Nπtan θ where D is the package diameter, T is the traverse width, N is the number of ribbons, and θ is the traverse angle.

[0005]

By the way, in the above yarn winding machine, when the number of ribbons becomes just N = 2, the bracket of the touch roller in contact with the surface of the package vibrates suddenly and greatly. There was a problem of causing the phenomenon. The following are possible causes of this phenomenon.

(1) When N = 2, the turn frequency accompanied by an impact when the traverse shoe turns and the rotation frequency of the package coincide with each other and resonate.

(2) When N = 2, a ribbon-wound bump 20 is formed on the surface of the package P as shown in FIG.
This bump 20 vibrates the bracket of the touch roller.

However, since the above causes (1) and (2) occur at the same time, it is difficult to determine which is the main cause.

Particularly, in the conventional yarn winding machine, since the traverse shoe is installed in a random manner, the impact time (phase) of the traverse shoe is also random. Position (phase)
Was also random. Therefore, in terms of timing, these phase differences become small, and large vibrations may occur.

Therefore, the object of the present invention is to solve the above-mentioned cause (1).
Another object of the present invention is to provide a yarn winding machine capable of suppressing the vibration force of (2) to a minimum and thereby suppressing the vibration to a minimum.

[0011]

In order to achieve the above object, a yarn winding machine according to the present invention is a yarn for winding a plurality of yarns into a plurality of packages while traversing them with a traverse shoe on a traverse cam. A feature of the traverse winder is that the traverse cam shoes are installed with their phases shifted by 360 ° w / n. Further, the yarn winding method of the present invention is a yarn winding method in which a plurality of yarns are simultaneously wound into a plurality of packages while traversing by a traverse shoe on a traverse cam. The feature is that the yarn is wound while being shifted by 360 ° w / n between the packages. Here, w is the traverse cam wind number, and n is the package number.

[0012]

According to the above structure, since the impact time of each traverse shoe is displaced at a predetermined interval and the position of the ribbon winding formed on each package is displaced at a predetermined interval, the phase difference is kept constant and the vibration is prevented. Will be minimized.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, the yarn winding machine 1
Is a turret disk 4 that rotates around a horizontal axis 3 with respect to the main body frame 2, and a turret disk 2 that projects from the turret disk 4.
Book bobbin holders 5 and 6, induction motors 7 and 8 fixed to the back side of the turret disk 4 to drive the bobbin holders 5 and 6, and an elevating frame 9 that is vertically movable with respect to the main body frame 2. The touch roller 10 and the yarn traverse device 11 provided on the elevating frame 9 are mainly provided. The elevating frame 9 has an air cylinder 12 provided on the base end side thereof.
The load is supported by the pressure roller, and the pressure difference between the weight and the lifting force of the cylinder 12 is the contact pressure of the touch roller 10 against the package. B is a bobbin, P is a package, and 2a is a fixed arm portion protruding from the main body frame 2.

The two bobbin holders 5 and 6 are switched by rotating the turret disk 4 by 180 ° by a drive source (not shown), and when the winding on the bobbin B on one bobbin holder 5 is completed, it is emptied. The other bobbin holder 6 into which the bobbin B has been inserted is rotated and lifted, and winding is started again on a new empty bobbin that has reached the lifted position.

In this yarn winding machine 1, the empty bobbin B brought to the uppermost position by rotating the turret disc 4 and the touch roller 10 brought to the lowermost position by the elevating frame 9 descending.
A slight gap D (several mm to 10 mm) is still provided between the support roller 10a and the support shaft 10a of the touch roller 10.
Induction motor 1 via pulley 13 and belt 14
5 are connected.

In the yarn winding machine 1, a plurality of (six in the embodiment) yarns Y are traversed by the traverse device 11.
While traversing, the bobbin B mounted on the bobbin holder 5 at the uppermost position is wound around the bobbin B, and the package P
Feedback control is performed by the touch roller 10 so that the peripheral speed becomes constant, and a plurality of (six in the embodiment) packages P are simultaneously formed.

In particular, as shown in FIG. 3, the traverse device 11 has traverse cams (traverse cam grooves) 16 of a number corresponding to the number of packages (six in the embodiment).
4, a traverse shoe 18 mounted on the traverse cam 16 as shown in FIG. 4, and a traverse guide 19 for slidably supporting the traverse shoes 18 in the axial direction of the cam shaft 17. It is mainly composed of and.

Since the yarn Y is wound while the phase of the traverse shoe 18 is shifted by 360 ° w / n between the packages, the traverse shoe 18 is 360 ° w / n.
It is installed by shifting the phase by n. Here, w is the traverse cam wind number, and n is the package number.

In the case of the embodiment, the traverse cam 16 is shown in FIG.
Since the traverse shoe 18 is formed to reciprocate once in four rotations (4 × 360 °) as shown in FIG. 2, the wind number w is 2 and the package number n is 6. Therefore, according to the above equation, The traverse shoes 18 are installed with their phases shifted by 120 °.

In this case, specifically, the traverse cams 16 are formed on the cam shaft 17 by shifting the phase by 120 ° in order to dispose the traverse shoes 18 having the shifted phases on the common traverse guide 19. The traverse shoe 18 is installed at the corresponding position. For convenience of description, FIG. 3 shows a state in which the traverse shoes 18 are installed on the traverse cam 16 formed on the cam shaft 17 in the same phase with the phase shifted by 120 °.

According to the above configuration, each traverse shoe 1
The impact time of 8 shifts at a predetermined interval (phase interval of 120 °), and the position of the ribbon-wound bump 20 formed on each package P is set at a predetermined interval (120 °) as shown in FIG.
The phase difference is kept constant and the vibration is suppressed to the minimum.

[0023]

In summary, according to the present invention, since the traverse shoes are installed at a predetermined interval, the impact time of each traverse shoe is displaced at a predetermined interval and the position of the ribbon winding formed on each package is increased. Shifts at a predetermined interval, and vibration can be suppressed to a minimum.

[Brief description of drawings]

FIG. 1 is a front view of a yarn winding machine showing an embodiment of the present invention.

FIG. 2 is a side view of the yarn winding machine.

FIG. 3 is a front view of a traverse cam used in the yarn winding machine.

FIG. 4 is an enlarged view of a shoe attached to a traverse cam.

FIG. 5 is a diagram showing installation locations of shoes on the traverse cam.

6A and 6B are diagrams showing a state in which the ribbon winding of the package is evenly distributed, FIG. 6A is a front view, and FIG. 6B is a side view.

7A and 7B are diagrams showing ribbon winding of a package, FIG. 7A is a developed view of the package, and FIG. 7B is a side view.

[Explanation of symbols]

 16 Traverse cam 18 Traverse shoe Y Yarn

Claims (2)

[Claims] 1. A yarn winding machine that simultaneously winds a plurality of yarns on a plurality of packages while traversing them with a traverse shoe on a traverse cam, by shifting the phase of the traverse shoes by 360 ° w / n. A yarn winding machine characterized by being installed. Here, w is the traverse cam wind number, and n is the package number. 2. A yarn winding method in which a plurality of yarns are simultaneously wound around a plurality of packages while traversing with a traverse shoe on a traverse cam, and the phase of the traverse shoe is 360 ° w / A yarn winding method characterized in that the yarn is wound while being shifted by n. Here, w is the traverse cam wind number, and n is the package number.