JPH035043B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a coil winding machine that forms a coil by winding a wire around a coil bobbin, and particularly improves a mechanism for regulating the winding width of the wire on the coil bobbin. This article relates to a coil winding machine.

Prior Art A conventional coil winding machine, as shown in Fig. 5,
A main shaft 2 that rotates with the coil bobbin 1 fitted to its tip, a main shaft motor 3 that rotates the main shaft 2 in a fixed direction, and a tensioner 5 that applies tension to the wire 4 wound around the coil bobbin 1. It has a lead screw 6 for reciprocating the tensioner 5 within a winding width w relative to the coil bobbin 1, and a traverser 7 for guiding the winding of the wire 4 around the coil bobbin 1. The traverser 7 includes a movable support plate 8 screwed onto the screw shaft of the lead screw 6, a front detection switch 9 and a rear detection switch 10 provided before and after the movable support plate 8, and the lead screw 6. It consisted of a front clutch 11 and a rear clutch 12, which were provided on the axis of the user 6 and were composed of an electromagnetic clutch or the like. The lead screw 6 of the traverser 7 has a belt 15 between a pulley 13 provided at the root of the main shaft 2 and a tapered roller 14 provided at the base end of the lead screw 6.
It is designed to be rotated by rotating it. Further, the arm 1 is connected to the movable support plate 8.
6 extends, and a mounting plate 1 is attached to the tip of this arm 16.
A tensioner 5 is provided via 7. Here, in FIG. 5, reference numeral 18 is a control circuit for controlling the winding width, etc., and reference numeral 19 is a drive circuit for the main shaft motor 3, etc.

In order to regulate the winding width w of the wire 4 on the coil bobbin 1 in such a conventional coil winding machine, first, the winding width w of the wire 4 on the coil bobbin 1 is adjusted before and after the movable support plate 8. The front detection switch 9 and the rear detection switch 10 are positioned and set in correspondence. Next, in this state, the operation of the entire device is started, and the wire 4 supplied through the tensioner 5 is transferred to the coil bobbin 1 by rotation of the main shaft 2.
Wrap it around. Along with this winding operation, the lead screw 6 of the traverser 7 rotates in a fixed direction, for example, in the direction of arrow A, via the pulley 13 provided on the main shaft 2, the belt 15, and the tapered roller 14, and as a result, the movable support plate 8 moves forward along the axis of the lead screw 6, for example in the direction of arrow C. When one side of the movable support plate 8 comes into contact with the front detection switch 9, the front detection switch 9 operates and sends a detection signal _S1 to the control circuit 18. The control circuit 18 receives the detection signal S ₁ and sends a drive signal S ₂ to the drive circuit 19 . This drive circuit 19 then receives the drive signal S ₂ and sends a control signal S ₃ to the front clutch 11 .
Then, the front clutch 11 becomes "disengaged" and the rotation of the lead screw 6 in the direction of arrow A is stopped, and the forward movement of the movable support plate 8 in the direction of arrow C is stopped.

At the same time, another control signal causes the rear clutch 12 to be brought into "contact" position, and the gears are brought into a state of reverse rotation. As a result, the lead screw 6 now rotates in the direction of arrow B in the opposite direction, and as a result, the movable support plate 8 retreats in the direction of arrow D along the axis of the lead screw 6. When the other side surface of the movable support plate 8 comes into contact with the rear detection switch 10, the rear detection switch 10 operates and sends out a detection signal _S4 to the control circuit 18. Thereafter, the drive signal S ₅ and the control signal S ₆ are sent out in the same manner as described above, and the control signal S ₆ is input to the rear clutch 12 so that the rear clutch 12
becomes "broken" and the lead screw 6 stops rotating in the direction of arrow B, and the moving support plate 8 stops moving backward in the direction of arrow D. At the same time, the front clutch 11 is brought into contact by another control signal, and the gears are engaged in forward rotation.
The lead screw 6 rotates again in the direction of arrow A, and the movable support plate 8 moves forward in the direction of arrow C.

By repeating the above-described operations, the movable support plate 8 moves forward and backward between the front detection switch 9 and the rear detection switch 10. Therefore, the tensioner 5, which is provided on the movable support plate 8 via the arm 16 and the mounting plate 17, reciprocates within a certain range with respect to the coil bobbin 1. The front detection switch 9 and the rear detection switch 10 are as follows:
Since the wire 4 is positioned in accordance with the winding width w of the wire 4 on the coil bobbin 1, the winding width w of the wire 4 is regulated by the above operation.

Problems to be Solved by the Invention However, in such a conventional coil winding machine, the rear detection switch 1 of the front detection switch 9
Since the winding width w of the wire 4 with respect to the coil bobbin 1 is regulated by the positional interval from Then, the front detection switch 9 and the rear detection switch 10 had to be moved and reset to positions corresponding to the new winding width w. Therefore,
The work of adjusting the winding width w of the wire 4 is complicated, and it is difficult to adjust it correctly. Also,
The above front detection switch 9 and rear detection switch 1
This requires a moving and fixing mechanism (not shown) of 0, making the structure of the traverser 7 complicated. Therefore, an object of the present invention is to solve such problems.

Means for Solving the Problems The means of the present invention for solving the above problems includes a main shaft that rotates with a coil bobbin fitted to its tip;
The wire is wound using a main shaft motor that rotationally drives the main shaft, a tensioner that applies tension to the wire wound around the coil bobbin, and a lead screw that moves the tensioner back and forth within the winding width relative to the coil bobbin. In a coil winding machine having a traverser for guiding, a detection means for detecting the amount of rotation of the lead screw of the traverser is provided, and a winding width setting means is provided for setting a winding width within a predetermined range, and the above-mentioned A comparator is provided to compare the output signals of the detection means and the winding width setting means, and the tension movement range is controlled by rotating the lead screw forward and backward within a predetermined range based on the coincidence signal from the comparator. This is done using a coil winding machine that regulates the winding width of the wire around the coil bobbin.

Embodiments Hereinafter, embodiments of the present invention will be described in detail based on the accompanying drawings.

FIG. 1 is an explanatory diagram showing an embodiment of a coil winding machine according to the present invention. In the figure, the main shaft 2, which rotates in a fixed direction by fitting the coil bobbin 1 into its tip, is provided horizontally in the main body. A main shaft motor 3 is connected to the base end of the main shaft 2, and the main shaft 2 is driven to rotate in a fixed direction by driving the main shaft motor 3.

A traverser 7 is provided adjacent to the main shaft 2 in parallel. The traverser 7 guides the winding of the wire 4 by reciprocating the tensioner 5, which will be described later, within the winding width w of the wire 4 on the coil bobbin 1.
A movable support plate 8 is screwed onto the screw shaft of the lead screw 6, and a front clutch 1 is provided on the shaft of the lead screw 6 and includes an electromagnetic clutch or the like.
1 and a rear clutch 12. In addition,
A tapered roller 14 is provided at the base end of the lead screw 6, and by passing a belt 15 between it and a pulley 13 provided at the base of the main shaft 2, the lead screw 6 is rotated. It is designed to be rotationally driven.

A tensioner 5 is attached to the movable support plate 8 of the traverser 7. This tensioner 5
is the wire 4 wound around the coil bobbin 1.
It applies tension to the spindle 20, a reel 21 that is fixed to the spindle 20 and rotates together with the spindle 20, and a powder brake or the like that applies an appropriate braking force to the opening and rotation of the spindle 20. It consists of a tension generation source 22. The tensioner 5 is attached using a mounting plate 17 provided at the tip of an arm 16 extending from the movable support plate 8.

In FIG. 1, reference numeral 18 is a control circuit for controlling the winding width, etc., and reference numeral 19 is a control circuit for controlling the winding width, etc.
The reference numeral 23 is a brake that applies a braking force to the rotation of the main shaft 2.

Here, in the present invention, the traverser 7
A potentiometer 24 is provided near the lead screw 6. This potentiometer 24 serves as a detection means for electrically detecting the amount of rotation of the lead screw 6, and the rotary shaft 25 of the wiper slides on a resistance element provided inside.
A pulley 26 is fixed to the lead screw 6, and a belt 28 is passed between the pulley 27 and a pulley 27 fixed to the intermediate portion of the lead screw 6, so that the wiper can be rotated. As shown in FIG. 3, the potentiometer 24 has a resistance value of 0Ω when the rotation angle is 0 degrees, and the resistance value of the potentiometer 24 is 0Ω when the rotation angle is 0 degrees.
At 180 degrees, the resistance value is said to be 10KΩ.

Furthermore, inside the control circuit 18, as shown in FIG. 2, first and second variable resistors 2, 9, and 30, which serve as winding width setting means for setting the winding width within a predetermined range, are provided. and the potentiometer 24 and the first and second variable resistors 29,
First and second comparators 31, 32 are provided for comparing the output signals with 30. The first variable resistor 29 is for setting the front end of the winding width w of the wire 4 on the coil bobbin 1 shown in FIG.
As shown in FIG. 4, the resistance value can be set from 0Ω to 10KΩ corresponding to the winding width setting range from 0cm to 10cm, for example. The second variable resistor 30 sets the rear end of the winding width w of the wire 4 on the coil bobbin 1 shown in FIG. 1, and as shown in FIG. Similar to the variable resistor 29, the resistance value can be set from 0Ω to 10KΩ. The first comparator 3 above
1 inputs and compares the detection symbol from the potentiometer 24 and the output signal from the first variable resistor 29, and outputs a one-finger signal when the two match, thereby determining the winding width w of the wire 4. This detects that the lead screw 6 has rotated to a position corresponding to the front end of the lead screw 6. Further, the second comparator 32 inputs and compares the detection signal from the potentiometer 24 and the output signal from the second variable resistor 30, and outputs a match signal when the two match. , the lead screw 6 reaches a point corresponding to the rear end of the winding width w of the wire 4.
This is to detect that the has rotated. Note that, as shown in FIG. 2, behind the first comparator 31 and the second comparator 32, there are a front switching driver 33 and a rear switching driver 34 for sending drive signals to the drive circuit 19. are connected to each other.

Next, an operation for regulating the winding width w in the coil winding machine configured as described above will be explained. first,
First and second variable resistors 29, 3 shown in FIG.
The winding width is set within a predetermined range by adjusting the resistance value of 0. That is, by turning the knob of the first variable resistor 29, a resistance value of 2KΩ corresponding to, for example, 2 cm in FIG. 4 is set, and the front end of the winding width w shown in FIG. 1 is set. Also, turn the knob of the second variable resistor 30 to set a resistance value of 9KΩ corresponding to, for example, 9 cm in FIG. 4, and set the rear of the winding width w shown in FIG. As a result, the winding width w is set from 2 cm to 9 cm within the winding width setting range.

Next, in this state, the start button 35 shown in FIG. 1 is pressed to start the operation of the entire apparatus, and the wire 4 supplied via the tensioner 5 is wound around the coil bobbin 1 by rotation of the main shaft 2. Along with this winding operation, the pulley 13, belt 15, and tapered roller 14 provided on the main shaft 2
The lead screw 6 of the traverser 7 rotates in a certain direction, for example, in the direction of arrow A, and as a result, the movable support plate 8 moves forward along the axis of the lead screw 6, for example in the direction of arrow C. At this time, as the lead screw 6 rotates in the direction of arrow A, the pulley 27 also rotates in the same direction, and the belt 28 and pulley 2
6 to rotate the rotating shaft 25 of the potentiometer 24. Then, the wiper of the potentiometer 24 slides on the resistance element, and its resistance value changes according to the characteristic curve shown in FIG. This change in resistance value is output as a detection signal _S7 of the amount of rotation of the lead screw 6, and this detection signal _S7 is sent to the first comparator 31 in the control circuit 18 shown in FIG.
and one terminal of the second comparator 32, respectively. Here, a signal _S8 corresponding to a resistance value of 2KΩ set in the first variable resistor 29 is input to the other terminal of the first comparator 31,
A signal _S9 corresponding to the resistance value of 9KΩ set in the second variable resistor 30 is input to the local terminal of the second comparator 32.

Then, the lead screw 6 is rotated by a certain amount, and the resistance value of the potentiometer 24 becomes, for example,
If it becomes 2KΩ, the detection signal _S7 of the potentiometer 24 input to the first comparator 31 and the output signal _S8 from the first variable resistor 29 match,
This first comparator 31 delivers a coincidence signal _S10 .
Then, this coincidence signal _S10 is transmitted to the forward switching driver 33.
This forward switching driver 33 is connected to the drive circuit 1.
The drive signal S ₁₁ is sent to 9. The input of this drive signal S ₁₁ activates a control relay in the drive circuit 19, which in turn sends a control signal S ₁₂ to the front clutch 11, as shown in FIG. Then, the front cradle 11 becomes "broken" and the lead screw 6 stops rotating in the direction of arrow A, and the moving support plate 8 stops moving forward in the direction of arrow C.

At the same time, the rear clutch 12 is brought into "contact" by another control signal, and the gears are brought into a state of reverse rotation. As a result, the lead screw 6 now rotates in the direction of arrow B in the opposite direction, and as a result, the movable support plate 8 retreats in the direction of arrow D along the axis of the lead screw 6. If the lead screw 6 rotates a certain amount in the opposite direction and the resistance value of the potentiometer 24 becomes, for example, 9KΩ, then in FIG. 24 detection signal S ₇ and second variable resistor 3
0 coincides with the output signal S ₉ , and this second comparator 32 sends out a coincidence signal S ₁₃ . Then, this coincidence signal S ₁₃ is input to the rear switching driver 34 , and this rear switching driver 34 sends a drive signal to the drive circuit 19 .
Send S ₁₄ . The control relay of the drive circuit 19 is actuated by the input of this drive signal _S14 , and the drive circuit 1
9 sends a control signal _S15 to the rear clutch 12, as shown in FIG. Then, the rear clutch 1
2 becomes “break” and arrow B of lead screw 6
At the same time, the movement of the movable support plate 8 in the direction of arrow D stops. At the same time, the front clutch 11 is brought into "contact" by another control signal, the meshing of the gears is at the forward rotation point, the lead screw 6 is rotated in the direction of arrow A again, and the movable support plate 8 is rotated. Move forward in the direction of arrow C.

Thereafter, by repeating the above-mentioned operation, the lead screw 6 rotates forward and backward within a predetermined range, and the movable support plate 8 moves forward and backward within a predetermined range above the lead screw 6, and this movable support plate The tensioner 5, which is provided on the coil bobbin 1 via an arm 16 and a mounting plate 17, is controlled to reciprocate within a certain range with respect to the coil bobbin 1. Since the resistance values of the first variable resistor 29 and the second variable resistor 30 are set to values corresponding to the front end or rear end position of the winding width w, the above operation The winding width w of the wire 4 is regulated to a predetermined value. When the required winding operation for the coil bobbin 1 is completed, the stop button 36 shown in FIG. 1 is pressed to stop the apparatus.

In addition, in FIG. 2, the first variable resistor 2
Although one variable resistor 9 and one second variable resistor 30 are provided, and the variable resistors for setting the winding width are shown as one set, the present invention is not limited to this. Two or more sets of the variable resistor 29 and the second variable resistor 30 for setting the rear end are provided in parallel, and different winding width w ranges are set for each set. Each set may be switched depending on the size or the like.
In this case, it is possible to switch and set a plurality of types of winding widths w with a single touch.

Effects of the Invention Since the present invention is configured as described above, the resistance values of the first variable resistor 29 and the second variable resistor 30 as winding width setting means are respectively set to the winding width w of the coil bobbin 1. By simply setting the value corresponding to the front end or rear end position, the lead screw 6 of the driver 7 is rotated forward and backward within a predetermined range.Then, the movement range of the tensioner 5 is controlled, and the coil bobbin 1 is rotated.
The winding width w of the wire 4 can be regulated within a predetermined range. Therefore, even if the winding width w of the wire 4 is changed to correspond to a coil bobbin 1 or the like of a different size, simply the first and second variable resistors 2
It is only necessary to operate the knobs 9 and 30 to set the respective resistance values to values corresponding to the front end or rear end of the desired winding width w. Therefore, the work of adjusting the winding width w of the wire 4 can be easily, accurately, and quickly performed. Therefore, the working efficiency of the coil winding can be improved. Further, a complicated mechanism such as the conventional moving and fixing mechanism of the front detection switch 9 and the rear detection switch 10 is not required, and the structure of the traverser 7 can be made relatively simple.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram showing an embodiment of a coil winding machine according to the present invention, Fig. 2 is a block diagram showing parts related to the present invention in a control circuit, and Fig. 3 is a diagram showing a potentiometer as a detection means. A graph showing the characteristics, FIG. 4 is a graph for explaining the winding width setting by the first variable resistor and the second variable resistor as the winding width setting means, and FIG. 5 is a graph showing the winding width setting of a conventional coil winding machine. FIG. 1... Coil bobbin, 2... Main shaft, 3... Main shaft motor, 4... Wire, 5... Tensioner, 6
...Lead Screw, 7...Traversa, 8...
...Moving support plate, 11... Front clutch, 12...
Rear clutch, 13, 26, 27...Pulley, 1
4...Tapered roller, 15, 28...Belt, 16...Arm, 17...Mounting plate, 18...
Control circuit, 19... Drive circuit, 24... Potentiometer (detection means), 29... First variable resistor (winding width setting means), 30... Second variable resistor (winding width setting means) ), 31...first comparator, 32...
...Second comparator, w...winding width.

Claims (1)

[Claims] 1. A main shaft that rotates with a coil bobbin fitted to its tip, a main shaft motor that rotationally drives this main shaft,
A coil winding having a tensioner that applies tension to the wire to be wound around the coil bobbin, and a traverser that has a lead screw that reciprocates the tensioner within the winding width with respect to the coil bobbin and guides the winding of the wire. The machine is provided with a detection means for detecting the amount of rotation of the lead screw of the traverser, and a winding width setting means for setting the winding width within a predetermined range, and output signals of the detection means and the winding width setting means are provided. A comparator is provided to compare the values, and the lead screw is rotated in the forward and reverse directions within a predetermined range based on the matching signal from the comparator, thereby controlling the movement range of the tensioner and adjusting the winding width of the wire on the coil bobbin. A coil winding machine characterized by being regulated.