JP3173762B2 - Insulation coating stripping device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a peeling device for peeling off a coating of a coated wire used for winding a coil.

[0002]

2. Description of the Related Art For example, Japanese Patent Application Laid-Open No. 5-284622 is known as an apparatus for peeling a coated wire used for winding a coil.

[0003] In this method, a pair of heated blades are cut into a coating of a wire from both sides, and the coating is peeled from a core by moving the blades along the wire in a state as it is.

[0004]

In this apparatus, the stripping length of the coating is equal to the moving distance of the blade along the wire, and if the coating is to be stripped over a long section, the moving range of the blade is set to be longer accordingly. is necessary. Therefore, there is a problem that the space occupied by the peeling device becomes large.

[0005] Further, in a switching transformer or the like, it is necessary to entangle the wire with the terminal many times during winding. In such a case, the coating of the wire is partially peeled off in the middle of the winding, and the winding is continued again after the peeled portion is entangled with the terminal. It is necessary to accurately control the position where the coating is peeled off so as not to be displaced. In order to satisfy this need, it is desirable to provide a peeling device as close to the nozzle as possible to facilitate the determination of the peeling device, and to shorten the moving distance of the wire after the peeling to reduce the cause of errors. However, as described above, it has been difficult to satisfy such requirements with a peeling apparatus requiring a large work space.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide an insulating coating stripping apparatus which can cope with an arbitrary stripping length and requires a small space for the stripping operation. .

[0007]

According to the first aspect of the present invention, a three-axis
Insert the coated wire for winding into the arm with
In the winding machine provided with a passing nozzle,
Guide means for guiding the wire rod to the nozzle;
And a pair of blades positioned between the nozzle bite from both sides in the coating of the wire, preparative and means for opening and closing these blades, and heat the heater blades to the arm, respectively
I attached.

According to a second aspect of the present invention, in the first aspect of the present invention, the guide means is configured to move the wire in a direction perpendicular to the blade.
I will guide you in the direction.

According to a third aspect of the present invention, a moving means in three axial directions is provided.
A nozzle for inserting the coated wire for winding into the arm provided
In only winding machine, and a pair of blades bite from both sides in the coating of the wire is guided to said nozzle, and means for opening and closing these blades, and means for moving a predetermined distance along these blades to the wire, The heater for heating these blades is configured as an integrated unit ,
Is attached to the arm .

According to a fourth aspect of the present invention, in the third aspect of the present invention, the unit is provided with means for gripping a wire.

According to a fifth aspect of the present invention, in the fourth aspect of the present invention, the gripping means is provided on both outer sides of the moving distance of the blade.
It is provided in each position .

In the first aspect of the present invention, for example,
Move the arm while it is wound on the bobbin for winding.
As a result, the nozzle and the wire are relatively moved, and the blade and the wire are also relatively displaced. Therefore, by performing this relative movement with the heated blade biting into the coating of the wire, the coating corresponding to the relative movement distance is peeled off.

According to the second aspect of the present invention, the guide means guides the wire at right angles to the blade, so that the angle at which the blade bites into the wire is constant and the subsequent peeling operation is ensured.

According to the third aspect of the present invention, the heated blade cuts into the coating of the wire, and the moving means moves the blade to peel off the coating for the moving distance. In addition, by moving the wire relative to the blade, it is possible to perform stripping of a length that has finished the maximum moving distance of the blade.

According to a fourth aspect of the present invention, when the coating is peeled off by the blade, the gripping means grips the wire to facilitate the peeling operation of the coating by the blade.

According to the fifth aspect of the present invention, the gripping means provided on both outer sides of the moving distance of the blade holds the wire before and after the operating blade, thereby facilitating the peeling operation.

[0017]

1 to 4 show a first embodiment of the present invention.

The arm 2 shown in FIG. 1 constitutes a part of a coil winding machine disclosed in, for example, Japanese Patent Application Laid-Open No. Hei 6-222063, and has a three-axis moving device 11,
The sub-arm 2a is supported at the tip via a rotary actuator 13.

The nozzle 1 having a wire 12 for coil winding inserted therein is fixed to the tip of the sub arm 2a. The wire 12 is covered with an insulating coating and supplied under a predetermined tension via a tension device (not shown). The nozzle 1 moves in three axial directions according to the driving of the moving device 11 and the rotary actuator 13, and rotates at an arbitrary angle on a vertical plane.

The wire 12 is provided above the nozzle 1 with two ceramic rings 3 attached to the sub-arm 2a.
And guide pulley 5 which is inserted between
Is guided downward. The ceramic rings 3 and 4 and the guide pulley 5 constitute guide means for the wire 12.

A wire 12 supplied from the nozzle 1 is wound around a coil bobbin (not shown) supported by a winding machine, entangled with a terminal of the bobbin, and cut by a cutter 6 attached to the same sub-arm 2.

Prior to binding to the terminal, a pair of blades 7 are provided between the ceramic ring 4 and the nozzle 1 in order to remove the insulating coating at the kinked portion of the wire. The blades 7 are arranged on both sides of the wire rod extending from the ceramic ring 4 to the nozzle 1, and are opened and closed by driving an air chuck 8 fixed to the sub arm 2. A heater 9 for heating the blade 7 is attached to the sub arm 2 via a heater attachment plate 10.

Next, the operation will be described.

In a normal winding operation, the blade 7 is held at a position away from the wire 12, and the wire 12 guided from the tension device is supplied from the nozzle 1 to the bobbin under a predetermined tension. Then, it is wound around the bobbin according to the rotation of the bobbin.

Before and after the winding operation, the wire 12 is entangled with the terminal of the bobbin. For this purpose, it is necessary to remove the insulating coating of the entangled portion from the wire 12.

In this operation, first, the rotation of the bobbin is stopped,
After heating the blade 7 with the ceramic heater 9, the blade 7 is operated in the closing direction by driving the air chuck 8,
The blade 7 is cut into the wire by the thickness of the coating.

When the arm 2 is moved upward in FIGS. 2 and 3 in this state, the blade 7 attached to the sub arm 2a and the wire 12 are relatively displaced. Since the blade 7 that has penetrated the wire 12 is heated, the displacement causes the insulating coating in contact with the blade 7 to melt and peel off. The delaminated coating residue is deposited on the blade 7.

Since the wire 12 is always moved at right angles to the blade 7 by the ceramic rings 3 and 4 and the guide pulley 5, the angle at which the blade 7 bites into the wire is always constant. Therefore, peeling of the coating is performed completely and smoothly.

Instead of moving the arm 2, the blade 7 and the wire 12 may be relatively displaced by rotating the bobbin.

Alternatively, a device for gripping the wire 12 is provided above the peeling device, the blade 7 bites into the wire 12 while the gripping device is gripping the wire 12, and the arm 2 is moved downward to peel the coating. Operation can be performed.

In this manner, since the coating is removed from the wire 12 over a length equal to the distance of the relative displacement, the coating removing portion which can cope with an arbitrary peeling length moves the arm 2 or By rotating the bobbin, the nozzle 1
Sent out from. In this state, the sub-arm 2a is moved by the moving device 11 so that the nozzle 1 goes around the terminal, so that the coating removing unit is entangled with the terminal. At this time, the sub arm 2a is tilted by driving the motor 13 according to the position and direction of the terminal.

It is necessary to determine in advance the position at which the coating of the wire 12 is removed from the end position of the winding operation to the terminal, etc. In the case of this peeling apparatus, the blade 7 provided on the sub arm 2 is used. Is located near the nozzle 1, the peeling position and the length can be easily determined. If the disposition position of the blade 7 is far from the nozzle 1, this calculation is difficult, and an error due to elongation of the wire and other factors is likely to occur in the middle because the movement distance from the peeling operation position to the terminal is long. Like this, nozzle 1
Such a problem does not occur because the coating is removed just above the surface.

Further, since the peeling device is provided on the sub arm 2, there is no need to provide a moving means for the blade 7 in the peeling device. The blade 7 can be arranged in the vicinity of the nozzle 1 because the peeling device is downsized and the configuration is simplified.

FIG. 5 shows a second embodiment of the present invention.

Here, the blade 7 and the ceramic heater 9 are supported by a clamp cylinder 20 as opening / closing means, and the clamp cylinder 20 is supported by a vertically moving cylinder 21. Further, a pair of gripping cylinders 22 and 23 that open and close to grip the wire 12 are configured as a unit integrated with the vertical cylinder 21 via a member 24.

The stroke distance of the vertical cylinder 21 can be adjusted in advance by a stopper (not shown).
The holding cylinders 22 and 23 are arranged so as to hold the wire 12 outside the maximum stroke distance.

The stripping of the wire coating is performed by the gripping cylinders 22 and 2
3 is closed, the wire 12 is gripped, the blade 7 is cut into the coating of the wire 12 by driving the clamp cylinder 20, and the blade 7 is moved along the wire 12 by the upper and lower cylinders 21. The stripping length of the coating is set by the stopper position of the vertical cylinder 21. If the bobbin is further rotated as necessary, the vertical cylinder 21 is removed.
Can be stripped over any length exceeding the maximum stroke distance of the coating. For this reason, for example, it is possible to perform the normal peeling operation by the stroke of the upper and lower cylinders 21 and selectively use the bobbin to rotate to increase the peel distance only when a particularly long peel distance is required. If such proper use is made, the vertically moving cylinder 21
Therefore, it is not necessary to set the maximum stroke distance large, and the peeling device unit can be made compact.

In this peeling device, all the members are configured as an integrated unit, and a device is provided between the tension device and the nozzle.
Since it attached to Oite arm, upper downward cylinder 21
Can be performed by moving the arm without depending on the rotation of the bobbin .

[0039]

As described above, the invention of claim 1 is, for example,
For example, with the wire wound on a bobbin for winding,
By the movement, the nozzle and the wire are relatively moved, and the blade and the wire are also relatively displaced. Therefore, by performing this relative movement with the heated blade biting into the coating of the wire, the coating corresponding to the relative movement distance is peeled off. There is no need to provide a dedicated moving means on the blade, the configuration of the peeling device is simplified, and the size of the peeling device can be reduced.

The invention according to claim 2 further comprises means for guiding the wire rod in a direction perpendicular to the blade, so that the blade bites into the wire rod at a constant angle and can stably peel off the coating. For this reason, there is an effect of improving the peeling accuracy of the coating.

According to a third aspect of the present invention, the blade is moved along the wire.
Means that moves by a predetermined distance with the nozzle
Because, by relative movement of the wire and the blade, it is possible to peel off the coating beyond the moving distance of the blade,
The size of the device can be reduced while ensuring the peeling distance of the coating.

According to a fourth aspect of the present invention, since the gripping means is provided in the third aspect of the present invention, the wire is gripped during the stripping operation by the blade, and the coating stripping operation by the blade is facilitated.

According to a fifth aspect of the present invention, since the gripping means are provided on both outer sides of the moving distance of the blade in the fourth aspect of the invention, the wire is held before and after the operating blade.
The peeling operation can be performed easily and reliably.

[Brief description of the drawings]

FIG. 1 is a perspective view of a peeling device according to a first embodiment of the present invention.

FIG. 2 is a side view of the sub arm to which the peeling device is attached.

FIG. 3 is a side view of the sub arm as viewed from a direction perpendicular to FIG. 2;

FIG. 4 is a plan view of a sub arm to which a peeling device is attached.

FIG. 5 is a side view of a peeling device according to a second embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 nozzle 3, 4 ceramic ring 5 guide pulley 7 blade 8 air chuck 9 heater 11 moving device 12 wire rod

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-61-285017 (JP, A) JP-A-60-97178 (JP, A) JP-A-6-224063 (JP, A) JP-A-5-205 111123 (JP, A) JP-A-5-284622 (JP, A) JP-A-4-51121 (JP, U) JP-A-63-176312 (JP, U) JP-A-3-112924 (JP, U) 52-102, 37882 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H02G 1/12 H01F 41/06

Claims (5)

(57) [Claims] 1. An arm provided with a moving means in three axial directions.
Winding machine equipped with a nozzle through which a coated wire rod is inserted
Guide means for guiding the wire to the nozzle on the arm.
Provided, a pair of blade bite from both sides positioned between the guide means and the nozzle to the coating of the wire, and means for opening and closing these blades, and heat the heater blades
The winding machine, which is mounted on each arm
For stripping insulation coatings. 2. A guide means for moving the wire to a blade.
The peeling device for an insulation coating in the winding machine according to claim 1, wherein the device is guided in a right angle direction . 3. An arm provided with a moving means in three axial directions is wound on the arm.
Winding machine equipped with a nozzle through which a coated wire rod is inserted
Te, a pair of blades bite from both sides in the coating of the wire is guided to said nozzle, and means for opening and closing these blades, and means for moving a predetermined distance along these blades to the wire, these blades The heater to be heated is configured as an integrated unit , and this unit is
An insulating coating stripping device in a winding machine, wherein the device is attached to an arm . 4. A device for peeling off the insulating coating on the winding machine according to claim 3, comprising means for gripping the wire to the unit. Wherein said gripping means peeling device of the insulating coating on the winding machine according to claim 4 provided respectively positioned on both outer sides of the moving distance of the blade.