Winding – tensioning – or guiding – Composite article winding – By orbiting material supply
Reexamination Certificate
2001-07-19
2004-01-20
Matecki, Kathy (Department: 3654)
Winding, tensioning, or guiding
Composite article winding
By orbiting material supply
C242S439400
Reexamination Certificate
active
06679449
ABSTRACT:
BACKGROUND OF THE INVENTION
1
. Field of the Invention
The present invention relates to a method and apparatus for winding wire around the outer periphery of a rotating wind-up tool of which the periphery is parallel to its axis of rotation, or a method and apparatus for winding wire around the outer periphery of a stationary wind-up tool of which the periphery is parallel to its axial center line.
2. Description of the Related Art
Hitherto, a winding mechanism with multi-spindles in which coil bobbins are rotated or fliers are rotated around stationary coil bobbins has been well known in the art. One of such apparatuses is shown in FIG.
16
.
In the drawing, a plurality of spindles
105
are driven by a motor
106
by the medium of a motor pulley, pulleys
100
a
~
100
d
attached to the spindles
105
, and a belt
101
. This prior art is economical because only one driving source is used, but contains problems as follows:
(1) the belt
101
looped over the motor pulley and pulleys
100
a
~
100
d
wears and gets longer with increasing use resulting in slack in the belt, which causes the deviation of rotation position due to the riding of the teeth of the belt across the teeth of the pulleys.
For this reason, in the case the bobbing rotates (shaft rotation type wire winder), the deviation of rotation position develops even if the motor is stopped at a predetermined position. Accordingly, when the wire paid out from a nozzle
102
is engaged to the terminal of the bobbin, failure of engagement occurs due to the deviation of position of the nozzle and terminal, and proper winding cannot be performed.
This is the same in the case of a flier type wire winder with a flier turning around the bobbin.
Even if the riding across of the teeth does not occur, there remains a problem that backlash develops in the meshing part of the teeth of the belt and pulley due to slack in the belt resulting in reduced accuracy of positioning.
(2) When the slack in the belt develops as mentioned above, it is necessary to adjust the position of idler pulleys in order to keep the tension of the belt, or to replace the belt if the slack is large, which demands much efforts for adjustment, maintenance, etc.
(3) There is a problem of short life of bearings because radial loads are exerted on the bearings of the spindles by the tension of the belt.
(4) As there are many mechanical contacting and moving parts such as the bearings of spindles, the belt and pulleys, bearings of idler pulleys, the idler pulleys and belt, etc., noise generated in these contacting parts is high, it becomes higher as the bearings wear and deteriorate.
(5) As there are many mechanical contacting and moving parts energy loss in these parts is large accompanying the problem of heat generation due to friction.
(6) As a plurality of pulleys and idler pulleys rotate together with the spindles, inertia moment is large, responsivity is poor, so there is a limit to the accuracy of motion at starting up with high speed, hard-stopping, etc.
SUMMARY OF THE INVENTION
The present invention is made to solve the problems described above. An object of the invention is to provide a method and an apparatus for winding wire without the failure of engagement of the wire caused by the deviation of position of a nozzle and bobbin terminal.
Another object of the invention is to provide a method and an apparatus for winding wire without using a belt transmission mechanism for drive a plurality of spindles by a driving source.
A further object of the invention is to provide a method and an apparatus for winding wire having superior responsivity to command signals.
The present invention is characterized in that, in a method of winding wire around the outer peripheries of a plurality of rotating wind-up tools of which the peripheries are parallel to their axes of rotation, each wind-up tool is installed on each of a plurality of spinning bodies rotatable about the same axis of rotation as that of the spinning body, an individual rotation driving source is provided for each spinning body, and wire is wound around each wind-up tool while each individual rotation source rotates in synchronism with each other.
The present invention is a method for winding wire around the outer periphery of a wind-up tool while rotating the wind-up tool, the wind-up tool may be a bobbin or a core other than bobbin, the wire being wound around the core to be formed into a coil which is removed from the core after the winding.
The invention has also a feature that, each of a plurality of wind-up tools are installed on each of a plurality of spinning bodies rotatable about the same axis of rotation as that of the spinning body, a rotation driving source is provided for each of the spinning bodies, and wire is wound around each wind-up tool while the rotation sources rotate in synchronism with each other.
By the art like this, as a rotation driving source is provided for each wind-up tool unlike the case the wind-up tools are driven by a driving source using a belt, it is possible to engage wire without the failure caused by the deviation of position of a nozzle and bobbin terminal, and further, as a belt transmission mechanism is not used for driving a plurality of spindles by a driving source, there occurs no problem of slacken belt, and a wire winding method with superior responsivity to command signals can be obtained.
Further, it is also an effective means of the present invention to establish a method in which the wires are supplied to the wind-up tools by way of nozzles, and the initial positions of the wires before winding are set by moving the nozzles up-and-down, right-and-left, and back-and-forth, or a method in which the nozzles are moved up-and-down, right-and-left, and back-and-forth corresponding to the wire winding motion to be adjusted to the proper position.
With the technical art like this, as the initial position of each of a plurality of nozzles is set on the same position, the failure of engagement of the wire due to the deviation of position of the nozzle and the terminal for engagement is prevented. Further, as nozzles are moved up-and-down, right-and-left, and back-and-forth corresponding to the wire winding motion, the winding can be performed with accuracy.
Accordingly, also thin wire can be wound with precision.
It is also an effective means of the present invention to regulate the position of each nozzle by moving each nozzle in the direction of up-and-down, right-and-left, and back-and-forth by rotating an individual rotation driving source for each direction.
It is desirable that, the rotation driving source is rotated by control pulses, feedback pulses with the same frequency as the control pulses are sent out from the rotation driving source, and the number of rotations of the rotation driving source is detected by counting the number of the feedback pulses which is the same as that of the control pulses.
With the technical art like this, as the feedback pulses having the same frequency as the control pulses for driving the rotation driving source, the number of rotations of the rotation driving source is detected by counting the number of the feedback pulses, and the rotation driving source is stopped in response to the detected number of the feedback pulses, the position of the nozzle can be accurately controlled. The number of rotations of the rotation driving source for rotating the spindle is controlled, so the number of rotations of the wind-up tool can also be accurately controlled.
As an apparatus for performing the present invention, here is proposed an apparatus for winding wire around the outer peripheries of a plurality of rotating wind-up tools of which the outer peripheries are parallel to their axes of rotation, wherein the apparatus comprises:
a plurality of rotatable wind-up tool holders for attaching each of the wind-up tools,
a plurality of rotation driving sources each of which is connected to each wind-up tool holder for rotating each wind-up tools, and
a rotation control means for controlling the rotation driving sources for rotat
Crowell & Moring LLP
Kim Sang
Matecki Kathy
Nittoku Engineering Co., Ltd.
LandOfFree
Method and apparatus for winding wire does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for winding wire, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for winding wire will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3208114