JPH08301522A - Winder - Google Patents

Abstract

PURPOSE: To move a bobbin following a specified path with a simple constitution. CONSTITUTION: A winder is provided with a rotating mechanism 3 for moving by rotating a plurality of bobbin holders 1, 2 appropriately, and a cam means 4 engaged with the bobbin holders 1, 2 so as to regulate the moving path 5. The cam means 4 has a cam groove 33 for vertically guiding the winding side bobbin holder 1. The rotating mechanism 3 moves the bobbin holder 1 so that a contact point between a touch roller 38 and a bobbin with a winding diameter increased in association with winding is constant.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding machine having a plurality of bobbin holders.

[0002]

2. Description of the Related Art In general, a winding machine has two bobbin holders into which a large number of bobbins are inserted, and is configured to wind a yarn by rotating these bobbin holders at a high speed by a spindle motor. Then, when the bobbin on the winding side becomes full, the bobbin on the winding side is rotationally moved to replace the other bobbin, and the winding is continued. This conventional winding machine has a problem that the installation pitch of the winding machine becomes larger than the substantial machine width because the yarn layers of the full package protrude in the machine width direction in the process of changing positions. . Therefore, the present applicant has developed and applied for a winding machine in which bobbin holders are moved independently of each other on the same circular orbit (Japanese Patent Application No. 6-25
793). With this configuration, the package yarn layer can be moved so as not to project from the machine body while avoiding contact between the bobbins, and the installation space can be reduced.

[0003]

By the way, the above-mentioned proposal discloses, as a holding mechanism for the bobbin holder, a mechanism for rotating and moving independently by two turret disks. Therefore, there remains a problem that its structure and control are complicated.

Therefore, the present invention was devised to provide a winding machine capable of moving a bobbin along a predetermined path with a simple structure.

[0005]

SUMMARY OF THE INVENTION The present invention comprises a rotating mechanism for appropriately rotating and moving a plurality of bobbin holders, and cam means for engaging the bobbin holders and regulating the movement paths thereof. . It is preferable that the cam means has a cam groove for vertically guiding the bobbin holder on the winding side. The rotating mechanism preferably moves the bobbin holder such that the contact point between the touch roller and the bobbin whose winding diameter increases with winding is constant.

[0006]

With the above structure, the rotating mechanism rotates the plurality of bobbin holders. The cam means engages with the rotating bobbin holder and guides it to a predetermined path. The cam groove is
Guide the bobbin holder on the winding side vertically so that the bobbin thread layer does not project in the width direction. The rotating mechanism keeps the contact point between the yarn layer and the touch roller constant and maintains a predetermined contact pressure.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 and 2 show an embodiment of the winder of the present invention. This winding machine has a rotating mechanism 3 for appropriately rotating and moving the two bobbin holders 1 and 2.
And cam means 4 that engages with the bobbin holders 1 and 2 and regulates the movement path thereof. In the present embodiment, the bobbin holders 1 and 2 are configured to move along a vertically long substantially oval movement path 5.

The rotating mechanism 3 includes a single disk-shaped turret disk 7 rotatably provided around the machine frame 6 about an axis, a ring gear 8 provided on an outer peripheral portion of the turret disk 7, and a ring rear. 8, an idle gear 9 and a drive gear 10 meshed with each other, and a rotational movement motor 12 in which the drive gear 10 is connected to an output shaft 11 thereof. Turret board 7
The outer peripheral end of is cut out in a truncated cone shape and is supported by a plurality of guide wheels 13 provided in the machine frame 6. Guide wheel 1
3 is supported on the upper part or the lower part of the machine frame 6 via a bracket 14. The ring gear 8 has an outer diameter substantially equal to the outer diameter of the turret board 7, and is attached to the rear surface of the turret board 7. The rotary movement motor 12 is provided at a lower corner of the machine frame 6 and is supported by a pedestal 16 of the machine frame 6 via a mounting plate 15.

The turret board 7 is formed with a long hole 17 having a width corresponding to the diameter of the bobbin holders 1 and 2 so that the two bobbin holders 1 and 2 can be moved in the radial direction. At the same time, a guide rail 18 is attached along the elongated hole 17. The guide rail 18 has a substantially square cross section and a slightly constricted middle portion, and is attached to the front and rear surfaces of the turret board 7 at the upper and lower positions of the elongated hole 17 in FIG. Bobbin holders 1, 2
Is composed of a rotating portion 19 for inserting the bobbin, a base portion 20 connected to a rear end of the rotating portion 19, and a connecting portion 22 for connecting the base portion 20 and the spindle motor 21.
Shafts 23 and 24 for transmitting the rotation of the spindle motor 21 to the rotating portion 19 are rotatably inserted at these axial positions. Support members 26 and 27 are respectively stretched between the base 20 and the front end of the spindle motor 21 and between the rear end flange 25, and the support members 26 and 27 are provided with a pair of upper and lower guides. An engagement body 28 that engages with the rail 18 is provided. Engaging body 2
Reference numeral 8 has an engaging groove slidably fitted to the guide rail 18, and a support member 26, 27 is supported by a bracket 29.
Attached to. Therefore, bobbin holders 1 and 2
Are supported by the turret board 7 via the guide rails 18. A gear 30 connected to the shaft 23 is attached to the rear end of the spindle motor 21, and a rotation sensor 31 that faces the tooth surface of the gear 30 and detects the rotation thereof is attached.

The cam means 4 includes a cam plate 32 provided in front of the turret board 7 and a cam groove 3 formed in the cam plate 32.
3 and 3. The cam plate 32 has a size that covers the turret board 7, and is attached to the machine frame 6 with bolts 34. A substantially elliptical opening 3 is formed in the center of the cam plate 32.
5 is formed, and the cam groove 33 is formed along the opening edge. The cam groove 33 has a rectangular cross section, and the cam followers 36 provided on the bobbin holders 1 and 2 are slidably fitted therein. That is, the bobbin holders 1 and 2 are restrained and held in the radial direction. The cam follower 36 is attached to the base 20 of the bobbin holders 1 and 2 via a bracket 37. The orbit of the cam groove 33 is formed so as to form a substantially elliptical movement path 5 having an arcuate section 5a at the top and the vertical section 5b at the left and right by being combined with the rotational movement. The vertical section 5b is a section in which winding is performed, and the arc-shaped section 5b.
The lower end position connected to a is set to the winding position.

In addition, the winding machine is provided with a touch roller 38 for applying an appropriate contact pressure to the winding package. The touch roller 38 is axially supported by an elevating box 39 that is moved up and down by an air cylinder (not shown) so that the axis of the touch roller 38 and the axis of the bobbin holder 1 in the vertical section 5b are vertically aligned. It is located. Further, the turret board 7 is provided with a rotary encoder (not shown) for detecting the rotation angle thereof, and the detection value thereof together with the detection value of the rotation speed of the bobbin holders 1 and 2 by the rotation sensor 31 is controlled by the control box ( (Not shown).
Based on these detected values, the control box causes the bobbin holders 1 and 2 to gradually move to the winding position as the winding progresses, and the peripheral speed (winding speed) of the winding package becomes constant. Thus, the rotary movement motor 12 and the spindle motor 21 are feedback-controlled.

Next, the operation of this embodiment will be described.

When the winding of the yarn is started, as shown in FIG. 3, the bobbin holder 1 is rotated at a high speed by setting the vicinity of the upper end of the vertical section 5b on the right side of the drawing as the winding start position 1a, and is inserted into this. The yarn Y is wound around the bobbin thus wound.
Then, as the winding diameter increases, the turret board 7 is rotated around the axis, and the bobbin holder 1 is guided by the cam groove 33 to be lowered. As the lowering control, for example, a relationship between a change in the winding time or the spindle rotation speed and a desired bobbin position may be set, and feedback control may be performed so that the rotation position is reached. The standby side bobbin (2a, 2b) is the same as the winding side bobbin (1a, 1b).
The phase of 180 degrees is maintained, and it goes up along the vertical section 5b on the left side. That is, the distance between the bobbins is the closest when they are aligned in the machine width direction, the distance is larger as the winding diameter is larger, and is the maximum at the hoisting position 1b. Then, the winding speed and the rotational movement speed are adjusted so that the increase amount of the winding diameter and the lowering amount of the bobbin holder 1 become equal until the winding position 1b is reached, and the contact point A with the touch roller 38 is adjusted. Is constant (immovable). When the winding-side bobbin becomes a full-winding winding package P, as shown in FIG. 4, the yarn is transferred to the standby-side bobbin (2b), and then the doffing cart (not shown) is used Doffing is performed at the doffing position 1c at the lower end. Then, the bobbin to which the yarn has been passed is moved from the upper end position 2c to the winding start position 1a, and the touch roller 38 is appropriately raised and lowered to come into contact with this bobbin, and then new winding is started.

Thus, one rotating turret board 7
With the cam plate 32 having the cam groove 33, the two bobbin holders 1 and 2 are wound while being moved along the movement path 5 including the vertical section 5a, so that the bobbin holders 1 and 2 are moved to the doffing position 1c. The yarn layer of the winding package P does not significantly project in the machine width direction, the installation pitch can be reduced, and the installation space can be reduced. The mechanism for moving the bobbin holders 1 and 2 along the movement path 5 can be simplified. That is, by simply rotating the turret board 7, the bobbin holder 1,
2 can be moved closer to the center side in the machine width direction. Further, since the axis of the touch roller 38 and the vertical section 5b are vertically aligned so that the lowering speed of the bobbin holder 1 becomes equal to the winding diameter increasing speed, the touch roller 38 is not required to be complicatedly controlled to move up and down. The contact pressure of the package P can be made constant, and the winding shape can be improved.

In this embodiment, the position from the winding start position 1a to the winding position 1b is moved vertically downward. For example, the path immediately before reaching the winding position 1b is arcuate. The contact pressure to the package P having a large winding diameter may be changed. This path change can be easily performed by slightly changing the elliptical orbit of the cam groove 33. That is, according to the present invention, the bobbin holders 1 and 2 can be moved along a desired path only by appropriately changing the shape of the cam groove 33.

[0017]

In summary, according to the present invention, the bobbin can be moved along a predetermined path with a simple mechanism, and the excellent effect that the installation space can be reduced can be achieved.

[Brief description of drawings]

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

FIG. 2 is a side view of a main part of FIG.

FIG. 3 is a front view for explaining the operation of the present invention.

FIG. 4 is a front view for explaining the operation of the next step in FIG.

[Explanation of symbols]

 1 and 2 bobbin holder 3 rotation mechanism 4 cam means 5 movement path 5a arcuate section 5b vertical section 32 cam plate 33 cam groove 38 touch roller A contact point

Claims (3)

[Claims] 1. A winding machine comprising: a rotation mechanism for appropriately rotating and moving a plurality of bobbin holders; and a cam means for engaging with the bobbin holders to regulate a movement path thereof. 2. The cam means has a cam groove for vertically guiding the bobbin holder on the winding side.
The winding machine described. 3. The bobbin holder according to claim 1, wherein the rotating mechanism moves the bobbin holder so that a contact point between the touch roller and the bobbin whose winding diameter increases with winding is constant. Winder.