JP2020147390A - Taping device - Google Patents

Abstract

To provide a taping device allowing for making the pitch of a tape material wound uniform throughout the entirety thereof irrespectively of the feed speed of a material-to-be-taped.SOLUTION: A taping device 8 comprises a revolution drive source 16, a revolving/sliding unit 15 and a taping head unit 13. The revolution drive source 16 allows transport of a material-to-be-taped 20. The taping head unit 13 is fixed on the revolving/sliding unit 15 and supplies a tape material 5. The revolution drive source 16 is allowed to revolve the taping head unit 13. The pitch of the tape material 5 wound equals to a distance the revolution drive source 16 feeds the material-to-be-taped 20 during one rotation of the taping head unit 13. The axial direction of the taping head unit 13 inclines relatively to a longitudinal direction of the material-to-be-taped 20.SELECTED DRAWING: Figure 9

Description

The present invention relates to a taping device.

A coil formed by winding an electric wire in which a plurality of conductors having a square or rectangular cross section are wound is used for a stator such as a motor and a transformer. The surface of the electric wire used for the coil is coated with an insulating material and has withstand voltage characteristics. However, in the motor and the transformer, for example, a defect such as partial discharge occurs in a portion where the potential difference is large in a portion where the coils are adjacent to each other and a portion where the magnetic flux density is locally high. For this reason, in motors and transformers, it is necessary to partially cover the insulator on the surface of the electric wire with insulating tape. An apparatus for automatically performing such taping processing is disclosed in, for example, Japanese Patent Application Laid-Open No. 63-74879 (Patent Document 1).

JP-A-63-74879

In Japanese Patent Application Laid-Open No. 63-74879, the power for driving the swivel shaft of the taping head to which the tape material to be wound is attached and the power for controlling the drive of the taped material to be wound are independent. it seems to do. In this case, it is difficult to synchronously control both, for example, making the speed at which the tape material is fed and the speed at which the tape material is supplied from the taping head the same. That is, in Japanese Patent Application Laid-Open No. 63-74879, the interval between the tape materials wound around the tape material (the pitch between the tape material wound at a certain position and the tape material wound at a position adjacent to the tape material) is defined. There is a problem that it is difficult to wind the tape material so that the entire wound tape material is substantially the same.

The present invention has been made in view of the above problems. An object of the present invention is to provide a taping device capable of making the pitch of the wound tape material uniform throughout the tape material regardless of the feeding speed of the tape material.

The taping device according to the present disclosure includes a swivel drive source, a swivel sliding portion, and a taping head portion. The swivel drive source can convey the material to be taped. The drive of the swivel drive source is transmitted to the swivel sliding portion. The taping head portion is fixed to the swivel sliding portion to supply the tape material. The swivel drive source can swivel the taping head portion. The pitch of the tape material to be wound is equal to the distance that the swirling drive source sends the tape material during one rotation of the taping head portion. The axial direction of the taping head portion is inclined with respect to the longitudinal direction of the material to be taped.

According to the present disclosure, it is possible to provide a taping device capable of making the pitch of the wound tape material uniform as a whole regardless of the feeding speed of the tape material.

It is schematic cross-sectional view which shows the 1st example of the structure of the wire | wire which comprises the object of taping by the taping apparatus of Embodiment 1. FIG. It is schematic cross-sectional view which shows the 2nd example of the structure of the wire | wire which comprises the object of taping by the taping apparatus of Embodiment 1. FIG. It is a schematic perspective view which shows the structure of the taped material as a bundle wire which bundled a plurality of strands of FIG. 1 and FIG. It is a schematic perspective view which shows the 1st example of the mode in which a tape material is wound and the material to be tape is formed. It is a schematic perspective view which shows the 2nd example of the mode in which a tape material is wound and the material to be tape is formed. It is a schematic perspective view which shows the 1st example of the coil obtained by winding the tape-be-taden material. It is the schematic perspective view which shows the 2nd example of the coil obtained by winding the tape-be-taden material. FIG. 5 is a schematic front view of the taping device of the first embodiment as viewed from the positive side in the Y direction. FIG. 5 is a schematic perspective view of the taping device of the first embodiment as viewed from the positive side in the Y direction. FIG. 5 is a schematic perspective view of the taping device of the first embodiment as viewed from the negative side in the Y direction. It is a schematic perspective view which shows the state which each component constituting the taping apparatus of Embodiment 1 was disassembled. It is the schematic which shows the 1st example of the process of winding a tape material around the taped material in Embodiment 1. FIG. It is a schematic diagram which shows the 2nd example of the process of winding a tape material around the material to be taped in Embodiment 1. FIG. It is a schematic diagram which shows the 3rd example of the process of winding a tape material around the material to be taped in Embodiment 1. FIG. It is a schematic front view which shows the mode of taping a tape-beating material when winding a plane coil. It is a schematic top view of FIG. FIG. 5 is a schematic front view of the taping device of the second embodiment as viewed from the positive side in the Y direction. It is the schematic perspective view which shows the state which each component constituting the taping apparatus of Embodiment 2 was disassembled. FIG. 6 is a schematic perspective view for supplementary explanation showing a state in which a part of FIG. 17 is extracted and enlarged. It is the schematic sectional drawing of the part along the line XX-XX of FIG. It is a schematic diagram which shows the mode in which a tension roller pulls a material to be taped.

Hereinafter, embodiments will be described with reference to the drawings. For convenience of explanation, the X direction, the Y direction, and the Z direction are introduced.

Embodiment 1.
<Structure of wire and taped material>
First, the configuration of the wire and the taped material as the object to be taped in the present embodiment will be described with reference to FIGS. 1 to 5. FIG. 1 is a schematic cross-sectional view showing a first example of a configuration of strands constituting an object of taping by the taping device of the first embodiment. FIG. 2 is a schematic cross-sectional view showing a second example of the configuration of the strands constituting the object of taping by the taping device of the first embodiment.

With reference to FIG. 1, the first example of the wire 10 of the present embodiment includes a lead wire 1 and an insulating coating 2. The lead wire 1 of FIG. 1 has a cross section in a direction intersecting the extending direction thereof, which has a dimension a in a substantially horizontal direction and a dimension b in a vertical direction orthogonal to the dimension a. In FIG. 1, the values of dimension a and dimension b are substantially equal. For this reason, the lead wire 1 has a cross-sectional shape that is substantially square, although the corners of the lead wire 1 have a curved shape. On the other hand, the outside of the lead wire 1 is covered with the insulating film 2. The insulating coating 2 has a thickness of, for example, t. Since the lead wire 1 has a cross-sectional shape close to a square, the entire strand 10 covered with the insulating coating 2 also has a cross-sectional shape close to a square. Since it has such a shape, the strand 10 in FIG. 1 is called a square wire.

With reference to FIG. 2, the second example of the wire 10 of the present embodiment also includes the lead wire 1 and the insulating coating 2. The lead wire 1 of FIG. 2 also has a cross section in a direction intersecting the extending direction thereof, which has a dimension a in the horizontal direction and a dimension b in the vertical direction orthogonal to the dimension a. In FIG. 2, the value of dimension a is larger than the value of dimension b. For this reason, the lead wire 1 has a cross-sectional shape that is substantially rectangular, although the corners of the lead wire 1 have a curved shape. On the other hand, the outside of the lead wire 1 is covered with the insulating film 2. The insulating coating 2 has a thickness of, for example, t. Since the lead wire 1 has a cross-sectional shape close to a rectangle, the entire strand 10 covered with the insulating coating 2 also has a cross-sectional shape close to a rectangle. Since it has such a shape, the strand 10 in FIG. 2 is called a flat line.

The conductor 1 is preferably made of a metal material such as copper or aluminum, but may be another conductive material. The insulating coating 2 is made of any material selected from the group consisting of PVF (polyvinyl fluoride), PU (polyurethane), PEs (polyester), PEI (polyesterimide), PAI (polyamideimide), and PI (polyimide). Is preferable. All of the above are resin materials, but the insulating coating 2 is not limited to the above resin materials. That is, as the insulating coating 2, an insulating material other than the resin material may be used.

FIG. 3 is a schematic perspective view showing the configuration of the material to be taped as a bundled wire in which a plurality of strands of FIGS. 1 and 2 are bundled. With reference to FIG. 3, the taped material 20 of the present embodiment is, for example, a bundled wire in which a plurality of flat wire strands 10 shown in FIG. 2 are bundled. That is, in the taped material 20, the insulating coatings 2 in the extending directions of the plurality of flat wire strands 10 are stacked so as to be in contact with each other and overlap each other. Then, the outer periphery of the plurality of strands 10 is covered with the insulating sheet 3 and put together as one to form the taped material 20. The insulating sheet 3 for forming the material to be taped 20 may be paper having an insulating property, but is not limited to this, and may be a string material made of polyester or the like. Further, in FIG. 3, three strands 10 are bundled to form the taped material 20, but the number of the strands 10 included in the taped material 20 is arbitrary. In FIG. 3, the taped material 20 in which the flat wires 10 of FIG. 2 are bundled is shown. However, the present invention is not limited to this, and for example, a tape-coated material 20 in which the square strands 10 of FIG. 1 are bundled may be used.

Since the plurality of strands 10 constituting the taped material 20 all have the same potential, if the withstand voltage resistance between the strands 10 is not required, the strands 10 start from only the lead wire 1 in which the insulating film 2 is not formed. The material to be taped 20 may be formed by being configured and being bundled with an insulating sheet 3.

The tape-covered material 20 shown in FIG. 3 is an example of a tape-covered material for a transformer. The insulating sheet 3 in FIG. 3 is a tape-shaped insulator made of paper.

FIG. 4 is a schematic perspective view showing a first example of a mode in which a tape material is wound to form a material to be taped. With reference to FIG. 4, for example, the tape material 5 which is an insulating tape is wound around at least a part of the outer periphery of the insulating sheet 3 of the material to be taped 20 having the aspect of FIG. As a result, the insulating sheet 3 in the region wound by the tape material 5 is covered with the tape material 5. In FIG. 4, each of the loops of the plurality of tape materials 5 formed by winding are arranged along the extending direction of the taped material 20 as a bundle line. As a result, the material to be taped 20 is formed as the material to be taped 20A.

FIG. 5 is a schematic perspective view showing a second example in which the tape material is wound to form the taped material. With reference to FIG. 5, here, for example, a plate-shaped insulating member 6 is arranged on at least a part of the side surface of the taped material 20 having the aspect of FIG. 3 extending in the stacking direction. There is. Then, the insulating tape material 5 is wound around the wires 10 (taped material 20) and the insulating member 6 so as to be integrated with each other. As a result, the insulating member 6 is covered with the tape material 5. In FIG. 5, as in FIG. 4, each of the loops of the plurality of tape materials 5 formed by winding are arranged along the extending direction of the taped material 20 as a bundled wire. As a result, the material to be taped 20 is formed as the material to be taped 20B. The structure of the material to be taped 20B is used in a place where the magnetic flux density of the coil is likely to be concentrated, for example, in a transformer having a large capacity.

<Coil configuration>
FIG. 6 is a schematic view showing a first example of a coil obtained by winding a material to be taped. With reference to FIG. 6, the taped material 20, that is, any of the taped materials 20A and 20B of FIGS. 4 and 5, is spirally orbited along, for example, the XY plane. As a result, the flat coil 30A having a shape close to a rectangular shape along the XY plane is formed. The flat coil 30A may be formed by orbiting one material to be taped 20, or may be formed by orbiting a bundle of a plurality of materials to be taped 20. Then, one end of the taped material 20 to be circulated and the other end on the opposite side to the one become the terminal portion 4. That is, the terminal portion 4 is arranged at the outermost and innermost ends of the taped material 20 to be circulated. In the following, the terminal portion 4 includes not only the endmost surface portion of the taped material 20 but also a region adjacent thereto.

In the transformer, a plurality of the above-mentioned flat coils 30A are stacked in the Z direction, and the terminal portions 4 of the pair of flat coils 30A adjacent to each other in the Z direction are connected to each other to form a circuit. Further, in the transformer, an iron core is inserted into the space inside the tape-covered material 20 around the flat coil 30A, whereby the function as a transformer can be obtained.

FIG. 7 is a schematic view showing a second example of a coil obtained by winding a material to be taped. With reference to FIG. 7, the material to be taped 20 is bent so as to extend into, for example, a hexagonal shape. A plurality of hexagonal shapes are usually formed. One end of the taped material 20 on which a plurality of hexagonal shapes are formed and the other end on the opposite side to the one end form the terminal portion 4. The coil of such an aspect is referred to as a hexagonal coil 30B here, but is also referred to as a diamond coil.

When the flat coil 30A of FIG. 6 and the turtle coil 30B of FIG. 7 are used for a motor or a transformer, for example, a portion having a large potential difference in a portion where the coils are adjacent to each other and a portion having a locally high magnetic flux density. Problems such as discharge occur. Therefore, it is desired to additionally cover the surface of the wire 10 with an insulating tape. For example, in anticipation of the above-mentioned problems, the coating with an insulating tape or the like can be thickened in advance. However, in this way, the volume of the insulating member portion of the entire coil increases, and the proportion occupied by the conductor decreases. Therefore, if the entire area to be taped 20 is covered with an insulating member excessively, the functions of the motor and the transformer using the coil made of the material 20 to be taped are deteriorated. For this reason, it is preferable to perform an additional taping process of the insulating tape material only in the portion where the insulation should be thickened during or immediately after the flat coil 30A or the turtle coil 30B is formed around the taped material 20. .. In this way, a coil capable of outputting high performance can be manufactured at low cost. The taping apparatus of the present embodiment described below is an apparatus used for such local additional taping processing.

<Structure of taping device>
FIG. 8 is a schematic front view of the taping device of the first embodiment as viewed from the positive side in the Y direction. FIG. 9 is a schematic perspective view of the taping device of the first embodiment as viewed from the positive side in the Y direction. FIG. 10 is a schematic perspective view of the taping device of the first embodiment as viewed from the negative side in the Y direction. FIG. 11 is a schematic perspective view showing a state in which each component constituting the taping device of the first embodiment is disassembled.

With reference to FIGS. 8 to 11, the taping device 8 of the present embodiment includes a taping head portion 13, a frame portion 14, a swivel sliding portion 15, and a swivel drive source 16. As shown in FIG. 9, the taping head portion 13, the frame portion 14, the swivel sliding portion 15, and the swivel drive source 16 are arranged in this order from the positive side to the negative side in the X direction. However, the position of the frame portion 14 in the X direction is substantially the same as that of the swivel sliding portion 15, and the frame portion 14 may be arranged so as to line up under the swivel sliding portion 15.

As shown in FIG. 11, the swivel drive source 16 mainly includes a first drive roller 161, a roller support member 162, a roller preload mechanism 163, and a second drive roller 164. Further, the swivel drive source 16 includes a first bevel gear 165, a second bevel gear 166, a third bevel gear 167, a fourth bevel gear 168, spur gears 169A and 169B, and a timing pulley 170. , A timing belt 171 is further provided. The swivel drive source 16 is configured by each of the above members.

Further, as shown in FIG. 11, the swivel sliding portion 15 includes a first rotary disk 151, a second rotary disk 152, a spur gear 153, and a support column 154. The swivel sliding portion 15 is configured by each of the above members.

For example, the first drive roller 161 and the second drive roller 164 (drive roller) are arranged so as to be arranged in the Y direction. The material to be taped 20 on which the tape material 5 is to be wound is sandwiched between them. The taped material 20 extends along the X direction, and its main surface extends along the XZ plane. The taped material 20 is sandwiched between the first driving roller 161 and the roller support member 164 so that the main surface of the taped material 20 comes into contact with the first driving roller 161 and the second driving roller 164. .. The second drive roller 164 is supported by the roller support member 162. The roller support member 162 presses the second drive roller 164 toward the first drive roller 161 side and gives a preload in the direction of bringing the second drive roller 164 into contact with the taped material 20. Supports the driving roller 164 of. The roller preload mechanism 163 is a member that applies a preload to the roller support member 162 to press the second drive roller 164 toward the first drive roller 161 side. The roller preload mechanism 163 may be a spring or an air cylinder. With the above configuration, the taped material 20 comes into contact with the first driving roller 161 and the second driving roller 164, and is sandwiched between them without slipping.

When the first drive roller 161 comes into contact with the taped material 20 and sandwiches the taped material 20 together with the second drive roller 164 without slipping, rotational power is generated in the first drive roller 161. .. Further, when the first drive roller 161 rotates, the second drive roller 164 that comes into contact with the taped material 20 also rotates. Due to these rotations, the taped material 20 sandwiched so as to come into contact with the two is conveyed to the positive side in the X direction, that is, from the swivel drive source 16 side to the taping head portion 13 side. In this way, the swivel drive source 16 can convey the taped material 20.

Further, the rotational power of the first driving roller 161 is transmitted in the order of the first bevel gear 165, the second bevel gear 166, the third bevel gear 167, and the fourth bevel gear 168. A spur gear 169A is provided on the rotary shaft 168A for fixing the fourth bevel gear 168, and a timing pulley 170 and a timing belt 171 are further provided on the rotary shaft 168A. Further, the rotating shaft 168B is arranged so as to be aligned with the rotating shaft 168A. The rotary shaft 168B is provided with a spur gear 169B, and the rotary shaft 168B is further provided with a timing pulley 170 and a timing belt 171.

As described above, one spur gear 169 and one timing pulley 170 are provided for each of the rotary shaft 168A and the rotary shaft 168B (the rotary shaft 168A is provided with the spur gear 169A, and the rotary shaft 168B is provided with the spur gear 169B. Has been). On the other hand, the timing belt 171 is wound around both the timing pulley 170 provided on the rotating shaft 168A and the timing pulley 170 provided on the rotating shaft 168B. That is, the timing pulley 170 of the rotating shaft 168A and the timing pulley 170 of the rotating shaft 168B share a single timing belt 171. Since the timing pulley 170 of the rotating shaft 168A and the timing pulley 170 of the rotating shaft 168B share the same timing belt 171, if the first driving roller 161 rotates, the spur gear 169A and the spur gear 169B are always equal. It rotates at a rotation speed equal to the direction.

At least one of the spur gears 169A and 169B always meshes with the spur gear 153 included in the swivel sliding portion 15. As a result, the turning power of the spur gears 169A and 169B can be transmitted to the spur gear 153. That is, in this way, the drive of the swivel drive source 16 is transmitted to the swivel sliding portion 15. This transmission transmits the rotation of two or more (four in this case) first bevel gears 165 to fourth bevel gears 168 included in the swivel drive source 16 to the swivel sliding portion 15. This is made possible by the spur gears 169A and 169B.

Here, since at least one of the spur gears 169A and 169B always meshes with the spur gear 153, the rotational power can always be transmitted from the swivel drive source 16 to the swivel sliding portion 15 as follows. .. As shown in FIG. 11, each of the first rotary disk 151, the second rotary disk 152, and the spur gear 153 constituting the swivel sliding portion 15 has a substantially circular shape when viewed in a plan view from the X direction. A notch C is provided on the upper side in the Z direction. This passes through the notch C of each member of the swivel sliding portion 15 from above in the Z direction, and the taped material 20 is placed in the cavity inside the first rotating disk 151, the second rotating disk 152, and the spur gear 153. It is provided so that it can be inserted.

Even when one of these becomes a phase that does not mesh with the spur gear 169A due to the rotation of the spur gear 153, the spur gear 169B arranged at a position different from that of the spur gear 169A with respect to the spur gear 153 becomes the spur gear 153. The spur gear 169B can mesh with the spur gear 153 if it is arranged at a position of the meshing phase. The spur gear 169A and the spur gear 169B are arranged in a positional relationship so that both of them do not overlap with the position of the notch C due to the rotation of the spur gear 153 and do not mesh with the spur gear 153. Therefore, at least one of the spur gears 169A and 169B always meshes with the spur gear 153, and the rotational power can always be transmitted from the swivel drive source 16 to the swivel sliding portion 15.

If notches C are provided in each member of the swivel sliding portion 15, even if there are a plurality of taped materials 20 for which the tape material 5 is to be wound, if the parts to be wound and the timing are different, one unit can be wound. Use the taping device 8. This is because the width of the notch C is sufficiently larger than the thickness of the material to be taped 20, so that there is sufficient space for inserting the plurality of materials to be taped 20 into the notch C.

Next, in the swivel sliding portion 15, the second rotary disk 152 is attached to the spur gear 153. Therefore, the second rotating disk 152 always rotates in the same direction and at the same rotation speed as the rotation of the spur gear 153. Further, the first rotating disk 151 is fixed to the second rotating disk 152 by the support column 154. Therefore, the first rotating disk 151 always rotates in the same direction and at the same rotation speed as the rotation of the spur gear 153. From the above, the first rotary disk 151 of the swivel sliding portion 15 is transmitted with the rotational power in the same direction and speed as the rotational power transmitted from the spur gears 169A and 169B of the swivel drive source 16 to the spur gear 153.

The frame portion 14 includes a frame 141, a swivel drive source fixing member 142, a first swivel sliding portion support roller 143, and a second swivel sliding portion support roller 144. The frame portion 14 is composed of each of the above members.

The frame portion 14 is generally arranged between the swivel drive source 16 and the taping head portion 13 in the X direction. The frame portion 14 has a role of guiding and supporting the swivel sliding portion 15 and fixing the swivel drive source 16. Specifically, the frame 141 guides and supports the swivel sliding portion 15. The swivel drive source fixing member 142 fixes the swivel drive source 16. Further, for example, the support roller 143 for the first swivel sliding portion supports the cylindrical surface of the second rotary disk 152, that is, the outer surface of the second rotary disk 152 extending in the X direction. The support roller 144 for the second swivel sliding portion supports an annular surface having a notch when the first rotary disk 151 and the spur gear 153 are viewed in a plan view from the negative side in the X direction.

The taping head portion 13 includes a taping head 131, a tape material support shaft 132, a first tape roller 133, a second tape roller 134, a torque limiter 135, a taping head base material 136, and a head fixing. It includes a member 137. The taping head portion 13 is composed of each of the above members.

The taping head 131 is a member that holds the tape material 5 wound around the taped material 20 in a wound state. The tape material support shaft 132 penetrates through the rotation shaft portion of the taping head 131. The taping head 131 is fixed to the taping head base material 136 by the tape material support shaft 132. Further, the taping head 131 is installed at a position adjacent to the first tape roller 133. The first tape roller 133, the second tape roller 134, and the torque limiter 135 are also fixed to the taping head base material 136 in the same manner as the taping head 131. The torque in the rotation direction of the first tape roller 133 is controlled by the torque limiter 135.

The outer periphery of the first tape roller 133 and the second tape roller 134 is coated with an elastic body such as urethane rubber (not shown). The tape material 5 is made of the first tape roller 133 and the second tape so that the main surface of the tape material 5 drawn out from the taping head 131 comes into contact with the first tape roller 133 and the second tape roller 134. It is sandwiched between the tape rollers 134. As a result, the tape material 5 comes into contact with the first tape roller 133 and the second tape roller 134, and is sandwiched between them without slipping. When the first tape roller 133 rotates, the second tape roller 134 that comes into contact with the tape-covered material 20 also rotates. Due to these rotations, the tape material 5 sandwiched so as to come into contact with the two is pulled out by applying tension for sliding, and is wound around the taped material 20. For this purpose, a preload is applied between the first tape roller 133 and the second tape roller 134 so that they are pressed against each other as necessary, and the tape material 5 is sandwiched between them in that state. Will be done.

The head fixing member 137 fixes the taping head base material 136. Here, the head fixing member 137 is inclined so as to have an angle θ with respect to the longitudinal direction L1 of the taped material 20 installed in the taping device 8, that is, the direction along the X direction in FIG. As a result, as shown in FIG. 8, the taping head portion 13 is inclined so that its axial direction L2 has an angle θ with respect to the longitudinal direction L1 of the taped material 20 installed in the taping device 8. ..

The taping head 131 is fixed to the first rotating disk 151. Therefore, when the first rotating disk 151 rotates, the taping head 131 rotates (turns) in the same direction and at the same speed so as to be interlocked with the rotation disk 151. That is, the taping head portion 13 is fixed to the swivel sliding portion 15. Further, the taping head portion 13 supplies the tape material 5 drawn out from the taping head 131 so as to be wound around, for example, the taped material 20.

Summarizing the above, in the taping device 8, the swivel drive source 16 abuts the first drive roller 161 and the second drive roller 164 so as to sandwich the taped material 20. Send in the longitudinal direction. The rotation of the first drive roller 161 of the swivel drive source 16 causes the spur gear 169A and the spur gear 169B to rotate in the same direction and at the same rotation speed. Since the spur gears 169A and 169B and the spur gear 153 mesh with each other, the swivel sliding portion 15 can be swiveled by driving the swivel drive source 16. Since it is fixed by the support column 154 in the swivel sliding portion 15, the spur gear 153 and the first rotary disk 151 rotate in the same direction and at the same rotation speed. The taping head 131 of the taping head portion 13 fixed to the first rotating disk 151 of the rotating sliding portion 15 rotates in the same direction as the first rotating disk 151 so as to be interlocked with each other at the same rotation speed. As described above, the taping head 131 can be rotated so as to be interlocked with the rotation of the first driving roller 161 that slides and conveys the taped material 20. That is, the swivel drive source 16 can swivel the taping head portion 13.

FIG. 12 is a schematic view showing a first example of the step of winding the tape material around the material to be taped in the first embodiment. With reference to FIG. 12, the tape-covered material 20 sandwiched between the first drive roller 161 and the second drive roller 164 (see FIG. 9) by rotation is in the direction M, that is, the X direction indicated by the arrow in the figure. Transported to the positive side. As described above, the taping head 131 rotates in conjunction with the rotation of the first drive roller 161. The tape material 5 is pulled out from the taping head 131 by the rotation of the taping head 131. The drawn tape material 5 is wound around the surface of the material to be taped 20 to be conveyed.

While the taping head 131 included in the taping head portion 13 makes one rotation, the tape material 5 is wound once. Therefore, the pitch P of the wound tape material 5, particularly the taped material 20 in the longitudinal direction L1, is covered by the first drive roller 161 of the swivel drive source 16 and the like while the taping head 131 makes one rotation. It is equal to the distance L for feeding the tape material 20 to the positive side in the X direction. Here, the pitch P is between a pair of loops of the tape material 5 that are adjacent to each other in the extending direction of the tape material 20 among the loops of the plurality of tape materials 5 formed by being wound around the tape material 20. Is the distance.

Let W be the width intersecting the extending direction of the tape material 5. As described above, in the present embodiment, the taping head portion 13, that is, the axial direction L2 of the taping head 131 is inclined at an angle θ with respect to the longitudinal direction L1 of the taped material 20. Specifically, in FIG. 12, the angle θ is θ1. Therefore, the tape material 5 is wound around the tape material 20 so that the width direction is inclined by an angle θ1 with respect to the longitudinal direction L1 of the tape material 20. In FIG. 12, the inclination angle is relatively small as θ1, and a gap is formed between the loops of a pair of adjacent tape materials 5 wound around the taped material 20. The dimension of the tape material 5 wound around the tape material 20 in the longitudinal direction L1 is P1, and the longitudinal direction of the gap between the loops of the adjacent pair of tape materials 5 wound around the tape material 20. Let P2 be the dimension for L1. In other words, in P2, the left end of the loop of the tape material 5 newly wound is located on the right end (negative side in the X direction) of the tape material 20 with respect to the right end of the loop of the tape material 5 wound immediately before. It is a coordinate value indicating whether to do. Therefore, as will be described later, P2 may have a negative value. At this time,

Is established. When the insulating property is not required on the entire surface of the material to be taped 20, the insulating tape material 5 may be wound so as to have a gap as shown in FIG.

FIG. 13 is a schematic view showing a second example of the step of winding the tape material around the material to be taped in the first embodiment. With reference to FIG. 13, in the second example, the inclination angle θ of the taping head 131 and the tape material 5 with respect to the longitudinal direction L1 of the taped material 20 is different from that of the first example of FIG. Specifically, in FIG. 13, the angle θ is θ2. θ2 is an acute angle larger than θ1. As a result, the width W of the tape material 5 and the transport distance L of the taped material 20 during one winding are the same as in the first example of FIG. 12, but the tape material 5 is wound around the taped material 20 without any gap. Turned

It has become.
FIG. 14 is a schematic view showing a third example of the step of winding the tape material around the material to be taped in the first embodiment. With reference to FIG. 14, in the third example, the inclination angle θ of the taping head 131 and the tape material 5 with respect to the longitudinal direction L1 of the taped material 20 is further increased as compared with FIGS. 12 and 13. Specifically, in FIG. 14, the angle θ is θ3. θ3 is an acute angle larger than θ2. As a result, the width W of the tape material 5 and the transport distance L of the material to be taped 20 during one winding are the same as those in FIGS. 12 and 13, but the loop of the tape material 5 is wound immediately before that. It is wound so as to partially overlap with the loop of the adjacent tape material 5. That is,

It has become.
As described above, the angle θ at which the axial direction of the taping head portion 13 is inclined with respect to the longitudinal direction L1 of the taped material 20 is changed from θ1 to θ3, for example. This angle θ can be changed, for example, by turning the taping head 131. By changing the angle θ at which the axial direction L2 of the taping head portion 13 is inclined with respect to the longitudinal direction L1 of the taped material 20, the angle at which the tape material 5 is wound around the taped material 20 is set to, for example, θ1 to θ3. It can be controlled like. Further, by changing the angle θ, the distance P2 between a pair of adjacent loops in the longitudinal direction L1 among the loops of the plurality of tape materials 5 formed by winding the tape material 5 around the tape material 20. Can be controlled. However, in addition to changing the angle θ, P1 and P2 can also be controlled by, for example, changing the width W of the tape material 5.

In any of the examples of FIGS. 12 to 14, that is, regardless of the inclination angle θ, the feed rate of the taped material 20 and the winding speed of the tape material 5 are synchronized. That is, for example, if the feed speed of the tape material 20 increases, the winding speed of the tape material 5 also increases in proportion to it. This is because the swivel drive source 16 and the taping head portion 13 are connected to each other, and the taping head 131 rotates in conjunction with the rotation of the first drive roller 161.

As shown in FIG. 11, the swivel drive source 16 of the taping device 8 includes a total of five types of gears except for the timing pulley 170. However, the number of types of the gear and the number of teeth included in the gear depend on the amount of rotation of the first drive roller 161 per rotation of the spur gear 153 of the swivel sliding portion 15 and the first rotary disk 151. It is decided. That is, the number of types of gears and the number of teeth described above are taped by the driving rollers (161, 164) per rotation of the spur gear 153 of the swivel sliding portion 15 and the first rotating disk 151 (taping head 131). It is determined according to how much distance the material 20 is transported to the positive side in the X direction. That is, by controlling the number of types of gears and the number of teeth, the amount of rotation of the first drive roller 161 when the spur gear 153 of the swivel sliding portion 15 and the first rotary disk 151 are rotated once is the tape material. It can be controlled so that the amount of rotation is appropriate in consideration of the pitch at which 5 is desired to be wound. Therefore, the diameter of the first drive roller 161 and the number of types of gears and the number of teeth included in the swing drive source 16 are not limited to the above and can be arbitrarily designed.

Next, the action and effect of the present embodiment will be described with reference to FIGS. 15 to 16.
<Explanation of problems to be solved by this embodiment>
FIG. 15 is a schematic front view showing a mode in which taping is performed on a material to be taped when winding a flat coil. FIG. 16 is a schematic top view of FIG. With reference to FIGS. 15 and 16, here, as in FIGS. 8 to 14, the insulating tape material 5 is taped while the taped material 20 is conveyed to the positive side in the X direction by the taping device. When the flat coil 30A is formed by winding the material to be taped 20, a line having a winding base 7 and a drum 9 for the material to be taped in addition to the taping device 8d corresponding to the taping device 8 of the present embodiment. Is processed at. The drum 9 for the material to be taped is a member that stores and supplies the material 20 to be taped. The winding base 7 is a base that rotates to form the flat coil 30A by winding the taped material 20 on which the tape material 5 is wound. In the line, the drum 9 for the taped material, the taping device 8d, and the winding base 7 are arranged in this order from the negative side in the X direction to the positive side.

In FIGS. 15 and 16, one end of the taped material 20 is first fixed on the winding base 7. The side of the material to be taped 20 opposite to the winding base 7 is in a state where the other end side of the material to be taped 20 can be supplied so as to pass through the taping device 8d and extend from the drum 9 for the material to be taped. In this state, the winding base 7 on which the taped material 20 is placed rotates in the direction R indicated by the arrow in the drawing so that the Z axis serves as the rotation axis. As a result, the material to be taped 20 is pulled out from the drum 9 for the material to be taped. The pulled-out material to be taped 20 is wound around the outside of the material to be taped 20 which has already been fixed to the winding base 7 and wound, so that the material to be taped 20 on the winding base 7 gradually takes the form of a flat coil 30A. Here, the taping device 8d is installed between the drum 9 for the taped material and the winding base 7. Therefore, the taped material 20 wound around the taped material drum 9 is taped in the taping device 8d after being pulled out from the taped material drum 9 and before reaching the winding base 7. As a result, the tape-covered material 20 can be partially taped while being wound on the winding base 7. When the tape material 20 passes through the taping device 8d, for example, the insulating tape material 5 is wound around to perform the taping process.

At this time, the tape material 5 needs to be wound at the same pitch and the same angle with a uniform tension over the entire region of the material to be taped 20 to be wound with the tape material 5. However, when taping is performed as shown in FIG. 16, the outer shape of the formed flat coil 30A gradually increases as the tape-covered material 20 is wound on the winding base 7.

Therefore, if the rotation speed of the winding base 7 is constant, the speed at which the tape-covered material 20 passes through the taping device 8d gradually increases as the outer shape of the flat coil 30A increases. On the contrary, if the speed at which the taped material 20 passes through the taping device 8d is made constant, the rotation speed of the winding base 7 gradually decreases, so that the flat coil 30A is produced as compared with the case where the rotation speed of the winding base 7 is constant. The sex is reduced. Therefore, from the viewpoint of avoiding a decrease in productivity, taping is usually performed by a method in which the rotation speed of the winding base 7 is kept constant in the lines of FIGS. 15 and 16 and the transport speed of the material to be taped 20 is gradually increased. The process is carried out.

Here, for example, if the power for driving the swivel shaft of the taping head and the power for controlling the drive of the taped material are independent as in JP-A-63-74879, the powers of both are synchronized. It is necessary to do. Here, tuning means performing control so that the powers of both are interlocked. Since the speed of the material to be taped changes, in order to wind the tape material around the material to be taped at the same pitch and the same angle with a uniform tension, if the material to be taped becomes faster, it should be adjusted accordingly. This is because the taping head is also required to operate quickly. In order to synchronize the powers of both in this way, for example, synchronous control in which the motor rotating the winding platform 7 of FIG. 16 and the motor rotating the taping head in the taping device 8d are interlocked so as to be proportional to each other is performed. You will need it. Such synchronous control is not impossible. However, if the rotation speed of the motor is high, the motor will step out and there will be restrictions such as having to reduce the rotation speed. Further, since a special control device is required for such synchronous control, the cost of equipment increases.

Therefore, in order to enable synchronous control without using the above-mentioned special control device for synchronous control, the taping device 8 of the present embodiment has been proposed as a device suitable for the taping device 8d of FIG.

<Action effect>
In the taping device 8 of the present embodiment, the swivel drive source 16 capable of conveying the taped material 20, the swivel sliding portion 15 to which the drive of the swivel drive source 16 is transmitted, and the swivel sliding portion 15 A taping head portion 13 that is fixed and supplies the tape material 5 is provided. The swivel drive source 16 can swivel the taping head portion 13. The pitch P of the tape material 5 to be wound is equal to the distance L to which the swivel drive source 16 sends the tape material 20 while the taping head portion 13 makes one rotation. The axial direction L2 of the taping head portion is inclined with respect to the longitudinal direction L1 of the taped material 20.

For example, the swivel drive source 16 and the taping head portion 13 are mechanically connected, and the swivel drive source 16 can swivel the taping head portion 13. Therefore, if the tape material 20 is conveyed by the rotation of the drive roller, the taping head portion 13 rotates at a speed corresponding to the speed so as to synchronize with the speed, and the tape material 5 is taped. It can be wound around the material 20. That is, for example, as the winding by the winding base 7 of FIG. 16 progresses and the outer shape of the flat coil 30A becomes larger, the speed at which the taped material 20 is fed increases, the tape material 5 automatically becomes the taped material 20 by that amount. The winding speed increases. On the other hand, regardless of these speeds, the situation in which the taped material 20 advances by a distance L equal to the pitch P does not change as the taping head 131 makes one revolution. Therefore, even if the speed changes, the pitch P and the angle θ around which the tape material 5 is wound do not change with respect to the tape material 20.

Further, the axial direction L2 of the taping head portion 13 is inclined at an angle θ with respect to the longitudinal direction L1 of the taped material 20. As a result, even if the width W of the tape material 5 is slightly different from that for obtaining the pitch P of the loop to be formed on the taped material 20, as shown in FIGS. 12 to 14, the inclination angle θ is used. The ratio of the area to be covered by the tape material 5 on the surface of the material to be taped 20 can be changed. For example, if the angle θ is increased as shown in FIG. 14, even if the width W of the tape material 5 does not change, the tape material 5 can be wound more tightly so as to cover the surface of the tape material 20 and increase the insulating property. Can be done. Such control is realized by the inclination angle θ.

As described above, according to the present embodiment, the tape material 5 is wound so as to have the same pitch and the same angle with a uniform tension over the entire region of the material to be tape 20 to be wound with the tape material 5. Can be taken. Therefore, it is possible to suppress taping defects of the material to be taped 20, that is, the flat coil 30A, and improve the quality and yield thereof. Further, according to the above, it is not necessary to provide a special control device for synchronous control between the swivel drive source 16 and the taping head unit 13. Therefore, the equipment cost and the electric power required for operating the equipment can be reduced. As a result, there is an energy saving effect.

In the taping device 8 described above, the angle θ at which the axial direction L2 of the taping head portion 13 is inclined with respect to the longitudinal direction L1 of the taped material 20 is changed. As a result, the angle at which the tape material 5 is wound with respect to the material to be taped 20 and the longitudinal direction among the loops of the plurality of tape materials 5 formed by winding the tape material 5 around the material to be taped 20. The distance P2 between a pair of adjacent loops for L1 can be controlled.

As shown in FIGS. 12 to 14, if the inclination angle θ of the axial direction L2 with respect to the longitudinal direction L1 is changed, the loop angle of the tape material 5 with respect to the taped material 20 is not changed without changing the width W of the tape material 5. Can be controlled. Further, by controlling the distance between the loops of the insulating tape material 5 wound on the material 20 to be taped, the degree of insulation on the surface of the material 20 to be taped can be controlled.

Embodiment 2.
<Structure of taping device>
FIG. 17 is a schematic front view of the taping device of the second embodiment as viewed from the positive side in the Y direction. FIG. 18 is a schematic perspective view showing a state in which each component constituting the taping device of the second embodiment is disassembled. FIG. 19 is a schematic perspective view for supplementary explanation showing a state in which a part of FIG. 17 is extracted and enlarged. FIG. 20 is a schematic cross-sectional view of a portion taken along the line XX-XX of FIG.

With reference to FIGS. 17 to 20, since the taping device 8S of the present embodiment has roughly the same configuration as the taping device 8 of the first embodiment, the same components are designated by the same reference numerals. The explanation is not repeated. However, the taping device 8S is different from the taping device 8 in that the guide portion 19 attached to the frame portion 14 is further provided. The guide portion 19 is formed by the frame portion 14 and the swivel sliding portion 15 not only in the direction along the longitudinal direction (X direction) of the taped material 20, but also in the arcuate diameter of the first rotating disk 151 of the swivel sliding portion 15. It is also locked in the direction.

The guide unit 19 includes a first member 191 and a second member 192, for example, as shown in FIG. The first member 191 and the second member 192 are integrated with screws or the like. The first member 191 is fixed to the swivel drive source fixing member 142 of the frame portion 14. Moreover, as shown in FIG. 20, when the first member 191 is viewed from the positive side in the X direction, the first member 191 has an annular shape (the notch C is a notch C) in a plan view of the first rotating disk 151 of the swivel sliding portion 15. It is placed on the inner peripheral side of the cavity (not considered). The first rotating disk 151 and the like of the rotating sliding portion 15 rotates around a rotation axis extending in the X direction through the rotation center O shown in FIG. 20. The taped material 20 extends along the X direction, and its main surface extends along the XZ plane. The material to be taped 20 is installed so that the main surface of the material to be taped 20 comes into contact with, for example, the inner wall surface of the first member 191. As a result, the first member 191 supports the taped material 20 by contact, for example, from at least three directions of the right side, the left side, and the lower side in FIG.

Like the first member, the second member 192 is arranged on the inner peripheral side of the annular annular cavity portion in the plan view of the first rotating disk 151 when viewed from the positive side in the X direction. To. However, the second member 192 is arranged on the outer peripheral side of the first member 191. That is, the outer circumference of the second member 192 has an arc shape when viewed from the positive side in the X direction. The arc-shaped outer peripheral portion of the second member 192 is fitted so as to come into contact with, for example, the inner peripheral surface of the cylindrical shape (notch C is not considered) of the first rotating disk 151. The second member 192 can move relative to the first rotating disk 151 of the swivel sliding portion 15 in the circumferential direction of the arc shape. That is, the second member 192 is fitted to the first rotating disk 151 so that it can slide relative to the first rotating disk 151.

The first member 191 and the second member 192 are provided with a notch C on the upper side in the Z direction thereof, similarly to the first rotating disk 151, the second rotating disk 152, and the spur gear 153 constituting the swivel sliding portion 15. Has been done. As a result, the material to be taped 20 can be inserted into the cavity inside the inner wall surface of the first member 191. Since the notch C is provided in this way, the taped material 20 is supported by the first member 191 from at least three directions. However, when the notch C is not provided, the taped material 20 may be supported in all four directions including the upper side in the Z direction by the first member 191.

As a modification of the present embodiment, the positional relationship between the main surface of the taped material 20 and the inner wall surface of the first member 191 may be as follows. That is, a slight gap may be provided between the main surface of the taped material 20 and the other surfaces so as to be arranged at a position extremely close to the inner wall surface of the first member 191. By utilizing this gap, the relative position of the taped material 20 with respect to the taping device 8S including the first member 191 can be slightly moved. As a result, the accuracy of the relative position of the taped material 20 with respect to the taping device 8S can be further improved.

As another modification, the first member 191 and the second member 192 may be separate members, but a single member as a guide portion 19 including the functions of the two members in a single component. It may have the configuration of.

Next, the action and effect of the present embodiment will be described with reference to FIG.
<Explanation of problems to be solved by this embodiment>
<Action effect>
FIG. 21 is a schematic view showing a mode in which the tension roller pulls the material to be taped. The tension roller is a roller that applies tension for pulling out the tape material 5 from the taping head 131. The tension roller is not described above. However, for example, the first tape roller 133 and the second tape roller 134 included in the taping head portion 13 also apply tension to the tape material 5 when the tape material 5 is wound, so that the tension roller can be used. It can be said that it is equivalent.

With reference to FIG. 21, the tension roller rotates, for example, in the direction R indicated by the arrow in the figure, and its outer circumference draws a curve that approximates the locus 18 in the figure, for example. Due to the tension roller rotating in this way, the material to be taped 20 is constantly subjected to a tensile force in the radial direction of the locus 18, for example, inward T. If the tension applied to the tape material 5 when winding the tape material 5 around the tape material 20 is large, the tape material 20 may be displaced from the position where it should be originally arranged. This is because the tape material 20 receives stress from the tape material 5 having tension when it is wound. Therefore, the taping device 8S having the guide portion 19 of the present embodiment has been proposed for the purpose of preventing the taped material 20 from being displaced even if the tension of the tape material 5 becomes large and maintaining a preferable relative position with respect to the taping head 131. It was.

<Action effect>
The taping device 8S of the present embodiment further includes a guide portion 19 attached to the frame portion 14. The guide unit 19 includes a first member 191 and a second member 192. The first member 191 is fixed to the frame portion 14, is arranged on the inner peripheral side of the swivel sliding portion 15, and supports the taped material 20 from at least three directions. The second member 192 is arranged on the outer peripheral side of the first member 191 and is capable of relative movement in the circumferential direction with the swivel sliding portion 15.

Since the taped material 20 is supported by the guide portion 19 from at least three directions, the taped material 20 is on the O side of the rotation center of the swivel sliding portion 15 shown in FIG. 20, that is, inside the space portion in the first member 191. Can be guided to bring. In this way, the material to be taped 20 can stay at a position close to the center of rotation O. As a result, the effect of fixing the position of the taped material 20 so as not to move unnecessarily from the taping device 8S including the guide portion 19 is enhanced. Therefore, the relative position of the material to be taped 20 with respect to the taping head 131 can always be kept constant.

As a result, the tape material 5 can be wound at the same pitch and the same angle with a uniform tension over the entire region of the material to be taped 20 to be wound with the tape material 5. Therefore, it is possible to suppress taping defects of the tape-coated material 20, that is, the flat coil 30A, and improve the quality and yield thereof.

As shown in FIGS. 15 and 16, if the tension for pulling out the tape material 20 from the drum 9 for the tape material by the winding of the winding base 7 is larger than the tension of the tape material 5 shown in T in FIG. 20 The taped material 20 does not shift to the notch C side of the guide portion 19, that is, the upper side in the Z direction.

The features described in each of the above-described embodiments (each example included in the above) may be applied so as to be appropriately combined within a technically consistent range.

It should be considered that the embodiments disclosed this time are exemplary in all respects and not restrictive. The scope of the present invention is shown by the scope of claims rather than the above description, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

1 Lead wire, 2 Insulation coating, 3 Insulation sheet, 4 Terminal part, 5 Tape material, 6 Insulation member, 7 winding stand, 8, 8d, 8S taping device, 9 Drum for tape material, 10 wire, 13 taping head Part, 14 frame part, 15 swivel sliding part, 16 swivel drive source, 19 guide part, 20, 20A, 20B taped material, 30A flat coil, 30B turtle shell coil, 131 taping head, 132 tape material support shaft, 133rd 1 Tape Roller, 134 2nd Tape Roller, 135 Torque Limiter, 136 Taping Head Base Material, 137 Head Fixing Member, 141 Frame, 142 Swing Drive Source Fixing Member, 143 Support Roller for Swivel Sliding Part , 144 2nd swivel sliding part support roller, 151 1st rotary disk, 152 2nd rotary disk, 153, 169A, 169B spur gear, 154 columns, 161 1st drive roller, 162 roller support member , 163 Roller preload mechanism, 164 2nd drive roller, 165 1st cap gear, 166 2nd cap gear, 167 3rd cap gear, 168 4th cap gear, 168A, 168B rotating shaft, 170 timing Pulley, 171 timing belt, 191 first member, 192 second member.

Claims (5)

A swivel drive source capable of transporting the material to be taped,
A swivel sliding portion to which the drive of the swivel drive source is transmitted,
A taping head portion fixed to the swivel sliding portion and supplying a tape material is provided.
The swivel drive source can swivel the taping head portion.
The pitch of the tape material to be wound is equal to the distance that the swivel drive source sends the tape material during one rotation of the taping head portion.
A taping device in which the axial direction of the taping head portion is inclined with respect to the longitudinal direction of the taped material. By changing the angle at which the axial direction of the taping head portion is inclined with respect to the longitudinal direction of the taped material, the angle at which the tape material is wound around the taped material and the taped material are covered with the tape material. The taping device according to claim 1, wherein the distance between a pair of adjacent loops in the longitudinal direction of a plurality of loops of the tape material formed by winding the tape material can be controlled. The swivel drive source is
A drive roller that can rotate in contact with the taped material without slipping,
Two or more bevel gears that transmit the power of rotation of the drive roller to the swivel sliding portion, and
The taping device according to claim 1 or 2, further comprising a spur gear for transmitting the rotation of the two or more bevel gears to the turning sliding portion. The taping device according to any one of claims 1 to 3, further comprising a frame portion between the swivel drive source and the taping head portion. Further provided with a guide portion attached to the frame portion,
The guide unit
A first member fixed to the frame portion, arranged on the inner peripheral side of the swivel sliding portion, and supporting the taped material from at least three directions.
The taping device according to claim 4, further comprising a second member arranged on the outer peripheral side of the first member and capable of relative movement in the circumferential direction with the swivel sliding portion.