JP3381413B2 - Coil manufacturing equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil manufacturing apparatus for winding a wire around a winding die to obtain a coil.

[0002]

2. Description of the Related Art A conventional coil manufacturing apparatus is shown in FIGS.
It shows in 0. FIG. 9 is a block diagram of the entire coil manufacturing apparatus,
FIG. 10 is a configuration diagram of a coil manufacturing apparatus, and FIG.
Is a front view, and FIG. 10 (b) is a right side view. As shown in FIG. 9, the main components of the coil manufacturing device are a winding device 2 for winding a winding device, an insulating paper supplying device 3 for supplying insulating paper to the winding device, and an electric wire for sending an electric wire wound around the winding device as well. The feeding device 4 includes an insulating paper pressing device 5 that presses the wound insulating paper when wound on a winding form, and a lap pressing device 6 that presses the winding start portion of the insulating paper. The configuration of each device will be described below with reference to FIGS.
Explained by. FIG. 11 is a perspective view of the lap holding device 6.

First, the winding device 2 is provided with a winding form 11 for winding an electric wire and the like, and a motor 31 fixed to the shaft 32 and directly connected to the shaft 32 as a power source. The insulating paper supply device 3 has an insulating paper 21 wound around a drum 24, and two rollers 22 are arranged opposite to each other. The insulating paper 21 is press-fitted between the rollers 22 and is attached to the shaft of the lower roller 22. Is connected to the shaft of the pulley 26a. The belt 25 is wound around pulleys 26a and 26b, and the central portion of the pulley 26b is connected to the shaft of a motor (not shown). 2
A cutter 3 cuts the insulating paper 21. In addition, the electric wire feeding device 4 includes the electric wire supply unit 50 storing the electric wires 14 and the winding form 1
1 is a wire feeding section 4a for feeding a wire, and the wire feeding section 50 is a brake for rotatably fixing a drum 52 for winding the wire around which the wire 14 is wound by a shaft 65 and restraining / releasing the shaft 65. It consists of 51. The electric wire feeding portion 4a has a screw shaft 27 directly connected to the shaft of the motor 28, and a female screw hole provided at the center of a coupling plate 68 that rotatably fixes the rollers 33a and 33b. There is. The screw shaft 27 is rotated by the rotation of the motor 28,
The roller 33a and the roller 33b are horizontally moved to the left and right to uniformly wind the electric wire 14 around the winding form 11.
Incidentally, 64 is a roller for guiding the electric wire 14.

Further, when the insulating paper pressing device 5 winds the insulating paper 21, it presses the insulating paper 21 against the outer circumference of the winding form 11 or the coil 11b, so that the pulleys 20a, 20b, 20c, 20 are provided.
A belt 61 is wound around the outer sides of d, 20e, 20f, and 20g to make a loop, thereby forming a pressing unit 61a. A cylinder 15a is coupled to the pulley 20e, and the pulley 20e is pressed by the operation of the cylinder 15a to push the belt 6a.
1 is given a tension. Arms 63a, 6
3b are pulley 20a, pulley 20b, and pulley 2 respectively.
0c and both ends of the pulley 20g are joined, and the insulating paper 21 is pressed against the winding form 11 or the coil 11b at the position of the solid line, and the pulley 20b and the pulley 20c can be moved as fulcrums as shown by arrows in the figure. And at the position of the dotted line,
The press of the insulating paper 21 from the winding form 11 or the coil 11b is released. In addition, 62 is a fixed stand, and on the fixed stand 62, the winding device 2, the insulating paper supply device 3, the electric wire feeding section 4 are provided.
a, the insulating paper pressing device 5 is fixed. As shown in FIG. 11, the lap holding device 6 comprises an insulating paper guide 56 and a shaft 57.
It has a curved portion 56a for pressing the first winding portion 12.
The shaft 57 is connected to a horizontal moving means (not shown) to move the insulating paper guide 56 to the corner 11a of the winding form 11,
The winding start portion 12 of the insulating paper 21 can be pressed.

The operation of the conventional device configured as described above will be described with reference to FIGS. 10 and 11. The electric wire 14 is connected and fixed to one end of a lead wire forming a coil 11b (not shown) on the winding form 11, and the winding form 1 is operated by the operation of the motor 31.
1 is rotated, and the electric wire 14 wound around the drum 52 is guided by the roller 64 in accordance with the rotation.
8 is operated, the screw shaft 27 is rotated, and the rollers 33a and 33b fixed to the coupling plate 68 are connected to the coil 1 of the electric wire 14.
1b is operated horizontally in the winding direction to guide the electric wires 14 so that they do not overlap with each other, and the electric wires 14 are wound. In addition, the brake 5 is provided so that tension is applied to the electric wire 14 when the electric wire 14 is wound around the winding form 11.
1, the braking force is applied to the drum shaft 65. next,
The electric wire 14 is evenly wound around the winding form 11 to form a coil layer, and the insulating paper 21 is attached to the coil 11b before moving to the winding of the next layer.
To wind. By operating a motor (not shown), the pulleys 26a and 26b around which the belt 25 is wound rotate, the roller 22 coupled to the shaft of the pulley 26a rotates, and the insulating paper 21 moves on the insulating paper guide 56. And is supplied to the winding form 11. The insulating paper 21 is cut by the cutter 23 so that the insulating paper 21 has a length corresponding to one round of the coil 11b, and the insulating paper 21 presses the arms 63a and 63b of the insulating paper pressing device 5 against the coil 11b by the belt 61 with the positions of the solid lines. The winding form 11 is rotated by the operation of the motor 31, and the winding form 1 is rotated with the rotation.
The insulating paper 21 is wound around 1 or the coil 11b.

As shown in FIG. 11 (a), the winding start portion 12 of the insulating paper 21 is moved by the curved portion 56a of the insulating paper guide 56 in the direction of the arrow by the horizontal moving means (not shown) to move along the corner portion 11a of the coil 11b. Bending mechanically, the winding form 11 was rotated to wrap the winding end portion 13 of the insulating paper 21. When the winding of the insulating paper 21 is completed in this way, the arms 63a and 63b are moved to the positions indicated by the dotted lines in FIG. 10 to release the pressing of the insulating paper 21. The above operation is repeated to wind the electric wire 14 and the insulating paper 21 around the winding form 11 to form the coil 11b.

Another prior art is shown in FIG. FIG. 12 shows an automatic taping device for coils disclosed in Japanese Unexamined Patent Publication No. 5-62584. In FIG. 12, the insulating paper 21 has an adhesive surface 21a on one side, and one end of the insulating paper 21 is held by a chuck 55 for tension. Reference numeral 54 is a lever for attaching the insulating paper 21. With this configuration, the lever 54 is operated like a chain line, and the insulating paper 2
The winding start portion 12 of No. 1 is bent as shown by an arrow and fixed to the coil 11b.

[0008]

First, the coil 11b is used.
When the insulating paper 21 is wound around, the winding start portion 12 of the insulating paper 21 is mechanically moved along the corner portion 11a of the coil 11b by the curved portion 56a of the insulating paper guide 56 as shown in FIG. 11 (b). It was bent at the end and wrapped with the winding end part 13. However, when the wire 14 is wound around the winding form 11, the coil 11b is wound.
Although the curved portion 56a has a constant shape, the burr 58 of the lap portion occurs as shown in FIG. 11B, and the lapping failure 59 as shown in FIG.
Was likely to occur. Furthermore, since the shape of the corner portion 11a of the coil 11b changes when the shape of the winding die 11 or the coil 11b is different, after replacing the insulating paper guide 56 having the optimum curved portion 56a or the like according to the corner portion 11a. The winding start portion 12 of the insulating paper 21 was pressed. For this reason, the work of wrapping the insulating paper 21 becomes complicated, and the production time of the coil 11b is increased.

Secondly, as shown in FIG. 10, as the outer diameter of the coil 11b increases as the electric wire 14 is wound around the winding form 11 in multiple layers, a roller serving as an electric wire supply port from one outer end of the coil 11b. The distance S between the centers of 33a (hereinafter referred to as winding span) changes. The winding span is changed to cause the electric wire 14 to vertically swing, which hinders stable winding of the electric wire 14.

A first object of the present invention is to manufacture a coil which can easily press the winding start portion of the insulating paper regardless of the shape of the winding die 11 or the coil to simplify the wrapping work of the insulating paper. To provide a device.

A second object of the present invention is to provide a coil manufacturing apparatus for winding a stable electric wire around a winding form while maintaining a winding span substantially constant according to an increase in the coil outer diameter when manufacturing the coil. To do.

[0012]

A coil manufacturing apparatus according to a first aspect of the present invention is an apparatus for manufacturing a coil by winding insulating paper around the coil, wherein the number of turns of the coil and at least the outer diameter of the wire of the coil are used. Calculating means for calculating the increase in outer diameter of the coil, a pressing member for pressing the winding start portion of the insulating paper, and the pressing member for the winding start portion of the insulating paper based on the calculation result of the calculating means. And a pressing member moving mechanism for moving the pressing member moving mechanism.

In the coil manufacturing apparatus according to the second aspect of the present invention, the insulating paper wound around the coil, the electric wire wound from above the insulating paper, and the winding start portion of the insulating paper are pressed while avoiding the electric wire. It is a pressing member that operates.

A coil manufacturing apparatus according to a third aspect of the present invention includes an electric wire wound from above the insulating paper, a detecting means for detecting the position of the electric wire, and two or more members for pressing the winding start portion of the insulating paper. And a pressing member moving mechanism that presses the electric wire by the at least one pressing member based on the detection result of the detection means.

A coil manufacturing apparatus according to a fourth aspect of the present invention is an apparatus for manufacturing a coil by winding an electric wire around a winding form, wherein the outer diameter of the coil is increased from the number of turns on the winding form and at least the outer diameter of the electric wire. And a correction mechanism that calculates the increase in outer diameter of the coil by the calculation means and corrects the distance from the coil to the electric wire supply port based on the calculation result. It is what

[0016]

According to the coil manufacturing apparatus of the first invention,
The calculation means calculates the increase in the outer diameter of the coil using the number of turns of the coil and the outer diameter of the wire of the coil, the pressing member presses the winding start portion of the insulating paper, and the pressing member moving mechanism calculates the calculation result of the calculation means. Based on the above, the pressing member is moved to the winding start portion of the insulating paper.

According to the coil manufacturing apparatus of the second invention, the insulating paper is wound around the coil, the electric wire is wound from above the insulating paper, and the pressing member applies the electric wire to the winding start portion of the insulating paper. Avoid and press.

According to the coil manufacturing apparatus of the third invention, the electric wire is wound on the insulating paper, the detecting means detects the position of the electric wire, and the pressing member presses the winding start portion of the insulating paper. Then, the pressing member moving mechanism presses the electric wire by the at least one pressing member based on the detection result of the detecting means.

According to the coil manufacturing apparatus of the fourth aspect of the present invention, the calculating means calculates the increase in the outer diameter of the coil from the number of windings on the winding form and the outer diameter of the electric wire, and the correction mechanism uses the calculating means to calculate the coil diameter. Is calculated, and the distance from the coil to the electric wire supply port is corrected based on the calculation result.

[0020]

【Example】

Example 1. An embodiment of the present invention will be described with reference to FIGS. 1, 2 and 4. FIG. 1 is a configuration diagram showing the entire coil manufacturing apparatus, FIG. 2 is a perspective view of an insulating paper pressing mechanism, and FIG. 4 is a block diagram of the coil manufacturing apparatus as a whole. Indicates. In FIGS. 1 and 2, 1
Reference numeral 0 denotes a plate as a pressing member having a notch portion 10a for avoiding a collision with the wire end portion 14a wound around the winding form 11, the plate 10 being fixed to a plate support 84, and a pair of two pairs of link plates 81. Are opposed to each other, and the upper end and the lower end of the link plate 81 are fixed to the side surface of the plate support 84 and the holding plate 87 by pins 86 to form two sets of parallel links. A swing joint 85 is fixed to the front surface of the plate support 84, the movable portion of the cylinder 15 serving as a drive source of the plate 10 is fixed to the swing joint 85, and the fixed portion of the cylinder 15 is a rotatable receiving portion 83.
It is fixed to the base 82 via. Where plate 1
The horizontal movement mechanism 60X for moving the 0 substantially horizontally includes a link plate 81, a base 82, a receiving portion 83, a plate support 84, a swing joint 85, a pin 86, and a holding plate 87.

In the vertical movement mechanism 60Y of the plate 10, the insulating paper supply device 3 is divided into an upper box 3a and a lower box 3b, and a base 82 of the horizontal movement mechanism 60X is fixed to the lower end of the upper box 3a. At the center of the lower surface of the upper box 3a.
9b is provided, and the screw receiving portion 29c is provided at the center of the upper surface of the lower box 3b so as to face the screw receiving portion 29b.
The feed screw 29a is inserted between b and 29c, and the gear 30a and the motor 3 connected to the lower end of the shaft of the feed screw 29a.
The power of the motor 30 is transmitted to the feed screw 29a through the gear 30b connected to the shaft of 0, and the plate 10 is moved by vertically moving the upper box 3a up and down. Incidentally, 30c is a mounting plate for fixing the motor 30 to the lower box 3b. As described above, the plate 10 constitutes the pressing member moving mechanism 98 which is freely movable by the horizontal moving mechanism 60X and the vertical moving mechanism 60Y. Therefore, the plate 10 is moved to the winding form 11 or the coil 1 by the pressing member moving mechanism 98.
The winding start portion 12 of the insulating paper 21 wound by the coil 11b can be pressed regardless of the size and shape of 1b.

Next, in FIG. 4, reference numeral 1 denotes a control device, and the control device 1 controls the cylinder 15, which is a drive source of the horizontal moving mechanism 60X and the vertical moving mechanism 60Y of the plate 10, the motor 30 and the like. Reference numeral 90 denotes an input device such as a keyboard, and the input device 90 gives an input signal to the control device 1.
Reference numeral 91 denotes a storage unit including a RAM and the like, and the storage unit 91 stores input data from the input device 90, a calculation formula for calculating the outer diameter of the coil 11b, and the like. Reference numeral 92 is a calculation unit including a CPU, and the calculation unit 92 calculates the outer diameter of the coil 11b. Reference numeral 93 denotes a pressing member instruction unit, and the pressing member instruction unit 93 includes the horizontal movement mechanism 60X and the vertical movement mechanism 60.
A command value for the X-axis and Y-axis movement of the plate 10 with respect to Y is generated. Reference numeral 96 is a winding number detecting section of the coil 11b, and this winding number detecting section 96 is directly connected to the shaft 32 of the winding form 11. The winding number detection unit 96 includes, for example, a detector including an encoder that generates a pulse corresponding to a rotation angle and a pulse that serves as an origin position signal. The origin of the winding form 11 and the origin position signal of the detector are matched.

Next, the operation of the embodiment configured as described above will be described with reference to FIGS. 1 to 6. First, the operator uses the input device 90 to, for example, the outer diameter of the electric wire 14, the thickness of the insulating paper 21, the outer diameter of the winding form 11, and FIGS.
As shown in FIG.
Whether or not the position detection is required is input, and the input value is stored in the storage unit 91 (step 100). The electric wire 14 is supplied from the electric wire feeding device 4 to the winding form 11 to
The shaft 32 is rotated by the motor 31 and the wire 14 is wound around the winding form 11. The calculation unit 92 calculates the output value of the encoder of the winding number detection unit 96 to detect the number of windings of the coil 11b.
(Step 101), the arithmetic unit 92 calculates the number of layers of the coil 11b by a calculation formula of "the number of turns of the coil 11b / the number of turns per layer" (Step 102), and the operation result is an integer (1, 2, 3, ... ..) is determined by the calculation unit 92 (step 103) and it is not an integer, that is, the calculation result is not 1, 2, 3, ... And a fractional part below the decimal point such as 1.23. If it has, the present process is terminated. On the other hand, if the calculation result is an integer, the calculation unit 92 calculates the outer diameter L of the coil 11b by a calculation formula of “(electric wire outer diameter + insulating paper thickness) × number of layers × 2 + winding die outer diameter” ( Step 104).

The control device 1 generates an operation command to a motor (not shown) of the insulating paper supply device 3, rotates the motor, rotates the pulley 26b, and the belt 25 also rotates the pulley 26a, thereby rotating the roller 22. Let As a result, the insulating paper 21 wound around the drum 24 moves while being press-fitted between the two rollers 22, is inserted between the coil 11b and the drawn-out electric wire 14b, and is supplied to the corner portion of the coil 11b. It Therefore, the winding start portion 12 of the insulating paper 21 is located at the corner portion of the coil 11b. here,
The length of the insulating paper 21 is cut by the cutter 23 so that the length of the insulating paper 21 is slightly longer than the circumference of the coil 11b in consideration of the wrap portion. The electric wire 14b from which the pressing means 61a is pulled out
And press the insulating paper 21 against the coil 11b (step 1
05). Next, the control device 1 generates a command, the shaft 32 of the winding form 11 is rotated by the motor 31, and the winding start portion 12 of the insulating paper 21 is easily bent at a position as shown in FIG.
The rotation of the winding form 11 is stopped (step 106). The winding number detection unit 96 detects the rotation angle θ of the winding form 11, and based on the outer diameter L of the coil 11b calculated in step 104 and the rotation angle θ, the calculation unit 92 calculates from the winding start portion 12 and the origin of the insulating paper 21. The distance of is converted to the X-axis and the Y-axis. The pressing member instruction unit 93 generates a command value for the X-axis and Y-axis movement amounts of the plate 10 based on the conversion result (step 106A).

The wire end portion 14a wound around the insulating paper 21
It is determined whether or not the position of
07) If the detection is not performed, the motor 30 serving as the drive source of the vertical movement mechanism 60Y of the plate 10 is driven by the command value of the Y axis, and the feed screw 29 is driven by the gears 30a and 30b.
By rotating a, the upper box 3a is moved up or down. The X
The cylinder 15 that is the drive source of the horizontal movement mechanism 60X of the plate 10 is driven by the command value of the axis, and the plate 10 is moved to the winding start portion 12 of the insulating paper 21 as shown in FIG. It moves in the direction of the arrow shown in b) to bend the winding start portion 12 and bring it into close contact with the coil 11b (step 108). The control device 1 generates a command to rotate the motor 31 to rotate the winding form 11, and at the same time, the pressing means 61a presses the winding start portion 12 of the insulating paper 21 against the coil 11b, and the winding end portion of the insulating paper 21. Overlap 13 and wrap 6
6 is formed. The plate 10 moves in the direction opposite to the arrow shown in FIG. 5B and returns to the original position (step 11
1), the lapping work for stacking the winding start portion 12 and the winding end portion 13 of the insulating paper 21 is completed.

As an embodiment of the present invention, the pressing member moving mechanism 98 includes a horizontal moving mechanism 60X and a vertical moving mechanism 60.
Although the description is based on the combination of Y, the moving mechanism is not limited to the moving mechanism, and any moving mechanism that bends the winding start portion 12 of the insulating paper 21 and closely contacts the coil 11b is sufficient.
In addition, the insulating paper 21 is wound around the coil 11b.
Even if the insulating paper 21 is wound around, the same action and effect as those of the first embodiment can be obtained. Further, the winding start portion 12 of the insulating paper 21 is pressed against the corner portion of the coil 11b by the movement of the plate 10, but the pressing is not limited to the corner portion of the coil 11b, and may be another portion.

Example 2. Another embodiment of the present invention will be described with reference to FIGS. FIG. 3 shows a perspective view of a lap holding mechanism provided with two plates. 3 and 4, reference numeral 16 is a left side plate as a first pressing member that presses the winding start portion 12 of the insulating paper 21, and 17 is a right side plate as a similar second pressing member. 60XL is a horizontal movement mechanism for the right side plate 17, and 60XL is the left side plate 1.
6 horizontal movement mechanism. The position detecting unit 94a as a means for detecting the electric wire position of the coil 11b has two image sensors 16a and 17a fixed to the lower surfaces of the plates 16 and 17 on the front side of the plate support 84. The detecting means is not limited to the image sensors 16a and 17a, but may be any device capable of detecting the position of the electric wire 14, and may be detected by a microswitch or the like, or the position of the electric wire 14 may be calculated from the number of turns of the coil 11b. good. The left / right determination unit 94b binarizes the image of the electric wire 14 captured by the image sensors 16a and 17a and determines whether the electric wire 14 is wound on the left or right of the winding form 11.

Next, the operation of the above embodiment will be described with reference to FIGS.
This will be described with reference to the flowchart in FIG. The operations of steps 100 to 106A and 111 in FIG. 6 are the same as or equivalent to those in the first embodiment, and thus the description thereof will be omitted. Therefore, the operation from the detection of the position of the electric wire in step 107 will be described. In step 107, if it is necessary to detect the wire end portion 14a wound around the winding form 11, the position detecting portion 94a detects the position of the wire end portion 14a wound around the insulating paper 21 and the image sensor 16a. , 17a, and the left / right determination unit 94b determines whether or not the position is on the right side (step 107A). If it is on the left side, the X of the right side plate 17 generated in step 106A is detected.
Based on the command values of the movement amounts of the axis and the Y-axis, first, the motor 30 that is the drive source of the vertical movement mechanism 60Y is driven to drive the gear 30.
Rotate the feed screw 29a with a and 30b to move the upper box 3a.
Move up or down. Further, the cylinder 15 serving as the drive source of the horizontal moving mechanism 60XR for the right side plate 17 is driven by the command value of the X axis, and the plate 17 is moved in the same manner as in the first embodiment to move the winding start portion 12 of the insulating paper 21. It is bent and brought into close contact with the coil 11b (step 109). On the other hand, as a result of the position detection in step 107A, if the position of the wire end portion 14a is on the right side, the vertical moving mechanism 60Y and the horizontal moving mechanism 60XL are moved in the same manner as described above, and the left side plate 16 starts winding the insulating paper 21. The portion 12 is pressed to be brought into close contact with the corner portion of the bending coil 11b (step 110). Compared to the first embodiment, the end of the winding start portion 12 of the insulating paper 21 is pressed by the plate 16 or the plate 17 regardless of whether the wire end portion 14a is located on the right or left side of the winding form 11. The winding start portion 12 of the insulating paper 21 can be surely pushed without the 16 or the plate 17 coming into contact with each other, and the insulating paper 21 is easily bent. Further, even with the winding form 11 which is long in the lateral direction, the end of the winding start portion 12 of the insulating paper 21 wound around the coil 11b can be easily pressed.

Example 3. Another embodiment of the present invention will be described with reference to FIGS. The wire 32 is attached to the shaft 32 of the winding form 11.
Since the outer diameter of the coil 11b increases as the number of windings is increased, the winding span S becomes shorter as shown in FIG.
In this embodiment, the change in the winding span S is suppressed and the electric wire 14 is stably wound around the winding form 11. In FIG. 4 and FIG. 7, 95 is a winding span instructing unit that generates a command to horizontally move the insulating paper supply device 3 to which the wire feeding unit 4a is fixed, and 99 is insulated based on the command of the winding span instructing unit 95. An electric wire feeding unit moving mechanism that is a winding span correcting mechanism that moves the paper feeding device 3. The electric wire feeding unit moving mechanism includes a feed screw shaft 71 and a receiving unit 72 having a female screw portion as shown in FIG. With this, the feed screw shaft 71 is rotated, the insulating paper supply device 3 is moved, and the position of the electric wire supply port of the electric wire feed portion 4a can be varied.

Next, the operation of the above embodiment will be described with reference to the flowchart of FIG. First, the worker uses the input device 9
With 0, for example, the outer diameter of the electric wire 14, the thickness of the insulating paper 21, and the allowable change amount y of the winding span are input, and the input values are stored in the storage unit 91 (step 200). The shaft 32 of the winding form 11 is rotated by the motor 31, and the wire 14 is attached to the winding form 11.
To wind. The arithmetic unit 92 calculates the output value of the encoder of the winding number detecting unit 96 to detect the number of windings of the coil 11b (step 201). The calculation unit 92 calculates the number of layers of the coil 11b, for example, by a calculation formula of "the number of turns of the coil 11b / the number of turns per layer" (step 202). The arithmetic unit 92 determines whether or not the arithmetic result is an integer (1, 2, 3, ...) (Step 203). If the arithmetic result is not an integer, this process is terminated. On the other hand, if the calculation result is an integer, the coil 1
The amount of increase in outer diameter of 1b is calculated, for example, by a calculation formula of “(outer diameter of wire + thickness of insulating paper) × number of layers × 2”, and the change amount Δx of the winding span is 1 / the amount of increase in outer diameter. Calculate as 2
(Step 204).

Next, it is judged whether or not the change amount Δx of the winding span exceeds the allowable change amount y of the winding span (step 20).
5) If not exceeded, this processing ends. On the other hand, if it exceeds the limit, the winding span instructing unit 95 of the control device 1 gives a command for moving the winding span change amount Δx to the electric wire feeding unit moving mechanism 99 (step 206). By driving the motor 70 and rotating the feed screw shaft 71 according to the command, the insulating paper supply device 3 is moved to the right side in FIG. 7 by the change amount Δx to make the winding span substantially constant (step 20).
7). Although the above embodiment corrects the distance from the outer end of the coil to the electric wire supply port, the position from the reference position to the electric wire supply port may be corrected by using an arbitrary position of the coil as a reference. The same action and effect as those of the embodiment can be obtained.

[0032]

According to the first aspect of the present invention, there is provided a calculating means for calculating an increase in the outer diameter of the coil from the number of turns of the coil and at least the outer diameter of the wire of the coil, and a pressing member for pressing the winding start portion of the insulating paper. Since a winding member moving mechanism for moving the pressing member to the winding start portion of the insulating paper based on the calculation result of the calculating means is provided, the winding start portion of the insulating paper can be surely pressed, and the wrap portion can be easily formed. There is an effect that can be formed.

According to the second invention, the insulating paper wound around the coil, the electric wire wound from above the insulating paper, and the pressing member for pressing the winding start portion of the insulating paper while avoiding the electric wire are provided. Since it is provided, the winding start portion can be surely pressed while avoiding the electric wire, the winding start portion of the insulating paper can be easily bent, and the wrap portion can be easily formed.

According to the third invention, an electric wire wound from above the insulating paper, a detecting means for detecting the position of the electric wire, and two or more pressing members for pressing the winding start portion of the insulating paper. , A pressing member moving mechanism for pressing the electric wire while avoiding the electric wire by at least one of the pressing members based on the detection result of the detecting means is provided, so that the winding start portion of the insulating paper can be easily bent even in a laterally long winding form, There is an effect that the wrap portion can be easily formed.

According to the fourth aspect of the invention, in an apparatus for manufacturing a coil by winding an electric wire around a winding form, a calculation for calculating an increase in outer diameter of the coil from the number of turns of the winding form and at least the outer diameter of the electric wire. And a correction mechanism that calculates the increase in the outer diameter of the coil by the calculation means and corrects the distance from the coil to the wire supply port based on the calculation result. The effect is that the electric wire can be stably wound around the winding form.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a coil manufacturing apparatus showing an embodiment of the present invention.

FIG. 2 is a perspective view of an insulating paper wrap holding mechanism showing an embodiment of the present invention.

FIG. 3 is a perspective view of a lap pressing mechanism including two plates according to an embodiment of the present invention.

FIG. 4 is a block diagram of a coil manufacturing apparatus showing an embodiment of the present invention.

FIG. 5 is a plate operation view showing an embodiment of the present invention.

FIG. 6 is a flowchart for forming a wrap portion of insulating paper showing an embodiment of the present invention.

FIG. 7 is a configuration diagram showing a moving mechanism showing an embodiment of the present invention.

FIG. 8 is a flowchart showing the operation shown in FIG.

FIG. 9 is a block diagram of a conventional coil manufacturing apparatus.

FIG. 10 is a configuration diagram of a conventional coil manufacturing apparatus.

FIG. 11 is a perspective view illustrating a forming operation of a conventional wrap portion.

FIG. 12 is an operation diagram illustrating a forming operation of a conventional wrap portion.

[Explanation of symbols]

10 ... Plate (pressing member), 11 ... Winding form 12 ... Insulation paper winding start portion, 13 ... Insulation paper winding end portion, 14 ... Electric wire 16 ... First Plate (first pressing member) 17 ... Second plate (second pressing member) 21,
..Insulating paper 94a ... Position detection unit (detection unit), 94b ... Left / right determination unit 98 ... Pressing member moving mechanism, 99 ... Electric wire feeding unit moving mechanism (correction mechanism)

Claims (4)

(57) [Claims] 1. A device for manufacturing a coil by winding an insulating paper around the coil, and calculating means for calculating an increase in the outer diameter of the coil by using the number of turns of the coil and at least the outer diameter of the electric wire of the coil, A coil comprising: a pressing member for pressing the winding start portion of the insulating paper; and a pressing member moving mechanism for moving the pressing member to the winding start portion of the insulating paper based on the calculation result of the calculation means. Manufacturing equipment. 2. An insulating paper wound around a coil, an electric wire wound from above the insulating paper, and a pressing member for pressing a winding start portion of the insulating paper while avoiding the electric wire. The coil manufacturing apparatus according to claim 1. 3. An electric wire wound from above the insulating paper, a detecting means for detecting the position of the electric wire, two or more pressing members for pressing the winding start portion of the insulating paper, and the detecting means. The coil manufacturing apparatus according to claim 1, further comprising a pressing member moving mechanism that presses the electric wire by at least one pressing member based on a detection result. 4. An apparatus for manufacturing a coil by winding an electric wire around a winding form, and calculating means for calculating an increase in outer diameter of the coil by using the number of turns on the winding form and at least the outer diameter of the electric wire. A coil manufacturing apparatus, comprising: a correction mechanism that calculates the outer diameter increase of the coil by the calculation means and corrects the distance from the coil to the electric wire supply port based on the calculation result.