JP3780829B2 - Tape winding apparatus and tape winding method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention mainly relates to a tape winding apparatus and a tape winding method that tap a workpiece such as an electric wire bundle.
[0002]
[Prior art]
Conventionally, taping is applied to a work such as an electric wire bundle or an exterior part (mainly a corrugated tube) in a manufacturing process of a wire harness. This taping operation is usually performed by a tape winding device provided with a taping head for turning a tape reel around a wire by a drive source such as a motor.
[0003]
Among the currently known tape winding devices, when taping a relatively long workpiece (for example, around 2 m),
a) A hand-operated type in which the operator moves the taping head along the workpiece and performs a tape winding operation (for example, JP-A-07-61415, JP-A-07-215598, JP-A-07- No. 101641) or
b) A tape is automatically wound around an electric wire bundle by moving the taping head and the electric wire bundle relatively in the longitudinal direction of the electric wire bundle with an automatic travel device (for example, Japanese Patent Laid-Open No. 06-183413, (See Kaihei 07-304571 and JP-A-10-152265)
Was adopted.
[0004]
[Problems to be solved by the invention]
By the way, in the type of a), since the operator has to transport the taping head, which is a heavy object, the burden on the operator is large.
[0005]
On the other hand, the type b) has a problem that the tape cannot be neatly wound around both ends of the work.
[0006]
In particular, when taping is required for a long bundle of wires with connectors connected to both ends, the relationship between the feeding speed of the taping head (or the bundle of wires) and the tape rotation conditions during taping However, since it was necessary to slightly change the winding allowance or the tension of the tape at the time of winding, such a fine adjustment could not be sufficiently performed by the conventional apparatus.
[0007]
Therefore, there has been a problem that the wire bundle is twisted on the downstream side of the taping region, or that the tape cannot be wound up to the terminal portion of the wire bundle.
[0008]
The present invention has been made in view of the above problems, and a tape winding apparatus and a tape winding method capable of performing precise taping to an end of a wire bundle having connectors connected to both ends. The issue is to provide.
[0009]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides a tape reel that carries a tape roll so that the feeding posture of the tape can be displaced,
A taping head having this tape reel so as to be capable of being swiveled around a swivel center on which the work is disposed;
A linear mechanism extending along the turning center of the taping head and a drive mechanism for relatively displacing the taping head along the longitudinal direction of the workpiece;
A tape winding device for winding the tape fed from the tape reel from one end side to the other end side of the work,
The relative displacement speed by the drive mechanism when the taping head taps the workpiece is decelerated when the taping head and the other end of the workpiece are close to each other, and after the deceleration, the taping head passes the other end of the workpiece. An interlocking control unit that interlocks and controls the drive mechanism with the taping head is provided so that the relative displacement between the two is advanced to the position, and then the relative displacement between the taping head and the workpiece is reversed to perform taping on the other end side. It is the tape winding apparatus characterized by having it.
[0010]
According to the present invention, when taping from one end side to the other end side of a linearly stretched workpiece, the tape reel pivoting operation by the taping head and the taping head by the drive mechanism are performed in the same manner as a known device. Taping is performed by the relative displacement operation between the workpiece and the workpiece. When the tape fed from the tape reel comes close to the other end side of the work, the interlock control unit decelerates the displacement speed by the drive mechanism and advances the relative displacement between the taping head and the work as it is. This deceleration forward operation causes slack in the tape fed from the tape reel, and excessive tension does not act on the workpiece. Thereafter, when the relative displacement between the taping head and the workpiece is reversed, the tape fed out in a slack state is smoothly wound around the outer periphery of the workpiece.
[0011]
The relative displacement between the taping head and the workpiece is preferably such that the taping head itself is reciprocated to fix the workpiece in a fixed position, but it may be reversed.
[0012]
In a preferred aspect, the taping head includes a head body, a rotating body that is rotatably provided around the turning center with respect to the head body, and supports the tape reel, and a relative to the rotating body along the turning center. A work guide that is mounted so as to be displaceable and guides the work to the center of rotation, and the work guide is supported during a period from when the relative displacement speed is reduced until the taping operation at the other end is completed. The other end side is held at a guideable position. If it does in this way, even in the process of rotating / reversing the rotating body, the work guide can wind the tape neatly around the terminal portion of the work.
[0013]
In a preferred embodiment, the work guide has a guide slit for guiding a tape wound around the work. In this aspect, even if the workpiece has a relatively small diameter, the tape is precisely guided by the workpiece through the guide slit, so that a good taping state can be obtained.
[0014]
In a further preferred aspect, the apparatus includes an elastic body provided between the work guide and the rotating body, and the relative displacement between the taping head and the work is reversed from the forward direction by the elastic force of the elastic body. It is configured as follows. If it does in this way, it will become possible to change the relative displacement direction of a taping head and a work only by simple machine structure, without requiring a complicated control mechanism.
[0015]
In a further preferred aspect, the tape reel has a toggle mechanism that switches the posture of the tape roll in conjunction with the reverse operation of the taping head and the workpiece. In this way, the tape pull-out direction can be automatically displaced in the optimum direction according to the taping state, so that the winding of the end portion where automatic taping is difficult can easily achieve a good finished state. It becomes possible to obtain.
[0016]
According to another aspect of the present invention, there is provided a tape reel that carries a tape roll so that a tape feeding posture can be displaced, a taping head having the tape reel so as to be capable of pivoting around a pivot center where a workpiece is disposed, and the taping A tape winding device having a linear workpiece stretched along the turning center of the head and a drive mechanism for relatively displacing the taping head along the longitudinal direction of the workpiece is fed out from the tape reel. In the tape winding method of winding the tape from one end side to the other end side of the workpiece, the relative displacement speed by the drive mechanism when the taping head taps the workpiece is determined so that the taping head and the other end portion of the workpiece are close to each other. The taper then decelerates and after taping, the taping head passes the other end of the workpiece. The tape is fed around the outer circumference of the workpiece while causing the tape to be fed from the tape reel to sag by moving the relative displacement of the tape to the position and then reversing the relative displacement of the taping head and the workpiece. It is a tape winding method characterized by rotating.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0018]
FIG. 1 is a perspective view schematically showing an overall configuration of a tape winding apparatus 10 according to an embodiment of the present invention.
[0019]
With reference to the figure, the tape winding device 10 according to the illustrated embodiment is a device for taping the wire bundle W with the wire bundle W having connectors C1 and C2 at both ends as a workpiece. In the device 10, the taping operation is performed from one end side to the other end side of the wire bundle W. The one end side will be described as the upstream side in the taping direction.
[0020]
The apparatus 10 includes a base 11 that is substantially rectangular in plan view, and an LM actuator 12 that is disposed on the upper surface of the base 11 and extends along the longitudinal direction of the base 11.
[0021]
An upstream unit 20 that receives the connector C1 on one end side of the wire bundle W is installed on one end side of the LM actuator 12, and the upstream side is on the other end side portion of the LM actuator 12. A downstream unit 30 for extending the wire bundle W in cooperation with the unit 20 is disposed. A taping head 100 is mounted on the slider 14 of the LM actuator 12 to tap the wire bundle W stretched between the units 20 and 30.
[0022]
FIG. 2 is a perspective view of the upstream unit 20 according to the embodiment of FIG.
[0023]
Referring to FIGS. 1 and 2, the upstream unit 20 includes a table 21 erected on the base 11, an electric wire clamp 22 attached to the upper surface of the table 21, and an upper portion of the electric wire clamp 22. And a connector holder 24 to be arranged.
[0024]
The table 21 includes a bottom plate portion 21a fixed on the base 11 with bolts (not shown), a leg portion 21b standing on the bottom plate portion 21a, and a table plate 21c provided on the top of the leg portion 21b. This is a metal product.
[0025]
Referring to FIG. 2, the electric wire clamp 22 includes a toggle lever 22a attached to the upper surface of the table plate 21c, and the front and rear along the longitudinal direction of the table plate 21c in conjunction with the rotation of the toggle lever 22a. And a pair of clamping pieces 22d that can be opened and closed via a link piece 22c connected to the end of the link rod 22b. The pair of clamping pieces 22d have clamping claws 22f that open and close around the connecting shaft 22e along the vertical line. When the toggle lever 22a is upright as shown by the solid line in the figure, When the claws 22f and 22f are closed so that the wire bundle W can be clamped, and the toggle lever 22a is tilted as shown by the phantom line in FIG. 2, the clamping claws 22f and 22f are opened. The electric wire bundle W can be released.
[0026]
The connector holder 24 includes a resin receiving portion 24a for receiving the connector C1 connected to one end of the wire bundle W on the upstream side of the holding claws 22f and 22f, and a guide for mounting the receiving portion 24a. A plate 24b, a slider 24c carrying the guide plate 24b, a guide rail 24d for slidably guiding the slider 24c along the longitudinal direction of the base 11 (that is, the longitudinal direction of the wire bundle W), and upstream of the guide rail 24d A tension coil spring 24f provided between a projection 24e standing at the end and the slider 24c is provided. Then, by fixing the slider 24c on the table plate 21c and elastically pulling the connector C1 placed on the receiving portion 24a to the upstream side, the electric wire bundle W is connected to the downstream unit 30 described later. It can be stretched linearly.
[0027]
In the illustrated example, the table plate 21c is provided with a hook-shaped guide 25 for receiving the removed connector C1 when the wire bundle W after the taping process is removed.
[0028]
FIG. 3 is a perspective view of the downstream unit 30 according to the embodiment of FIG.
[0029]
Referring to FIGS. 1 and 3, the downstream unit 30 is provided on the LM guide 31, a slide table 32 fixed so as to be adjustable at an arbitrary position on the LM guide 31, and the slide table 32. And an electric wire clamp 33.
[0030]
The LM guide 31 is disposed in parallel with the LM actuator 12. Then, by adjusting the slide table 32 along the LM guide 31, the holding position of the downstream connector C2 can be changed according to the type of the wire bundle W.
[0031]
The slide table 32 integrally includes a bottom plate 32a, a column portion 32b that protrudes obliquely from the bottom plate 32a and faces the top of the LM actuator 12, and a table plate 32c attached to the top of the column portion 32b. is doing. A plurality of clamp handles 32d are attached to the bottom plate 32a, and the clamp handle 32d can lock and unlock the slide table 32 with respect to the LM guide 31. Further, in the illustrated example, a scale 31a is provided on the upper surface of the LM guide 31 so that the clamp position can be adjusted precisely.
[0032]
The electric wire clamp 33 is in principle the same as the upstream electric wire clamp 23 described above, and is interlocked with the toggle lever 33a attached to the upper surface of the table plate 31c and the turning operation of the toggle lever 33a. A link rod 33b that moves back and forth along the longitudinal direction of the table plate 31c, and a pair of clamping pieces 33d that can be opened and closed via a link piece 33c connected to the end of the link rod 33b. Yes. The pair of holding pieces 33d have holding claws 33f that open and close around the connecting shaft 33e along the vertical line. When the toggle lever 33a is upright as shown by the solid line in the figure, these holding pieces 33d When the claws 33f and 33f are closed and the electric wire bundle W can be pinched, and the toggle lever 33a is tilted as shown by the phantom line in FIG. 3, the respective claws 33f and 33f are opened. The electric wire bundle W can be released. The electric wire clamp 33 on the downstream side can hold the connector C2 in a gap formed on the downstream side of the both clamping claws 33f and 33f and can grip the vicinity of the connector C2 of the electric wire bundle W. .
[0033]
In addition, the said table board 32c and the electric wire clamp 33 of the downstream unit 30 are set so that insertion of the inner peripheral side of the taping head 100 mentioned later is possible.
[0034]
Next, the taping head 100 of this embodiment will be described in detail with reference to FIG. 1 and FIG.
[0035]
First, referring to FIG. 1, the taping head 100 according to the illustrated embodiment moves between the units 20 and 30 by reciprocating between the units 20 and 30 described above by the drive motor 12 a of the LM actuator 12. This is for applying taping to the stretched wire bundle W.
[0036]
The LM actuator 12 has a drive motor 12a as a drive mechanism, and the drive motor 12a can reciprocate the slider 12b along the longitudinal direction of the base 11. Then, the taping head 100 is mounted on the slider 12b, and the taping head 100 and the electric wire bundle W are relatively displaced by driving the taping head 100 from the upstream side to the downstream side to perform taping.
[0037]
4 is a perspective view of the taping head 100 according to the embodiment of FIG. 1, and FIG. 5 is an exploded perspective view of the taping head 100 according to the embodiment of FIG. 6 is a side view showing the main part of the taping head 100 according to the embodiment of FIG. 1, and FIG. 7 is an exploded view of FIG.
[0038]
4 and 5, the illustrated taping head 100 includes a carrier 110 that is placed on the slider 12b of the LM actuator 12, a rotating sleeve 120 that is rotatably supported on the carrier 110, and A rotation drive mechanism 140 for rotating the rotation sleeve 120, a slide unit 150 and a tape reel 170 attached to the rotation sleeve 120, and a tape cutting unit 180 attached to the carrier 110 are provided.
[0039]
The carrier 110 includes a base plate 111 placed on the slider 12b of the LM actuator 12, an end plate 112 standing on the upstream side of the base plate 111, and a holder fixed to one side of the end plate 112. Plate 114.
[0040]
The end plate 112 is formed with a substantially circular insertion hole 112a, and the insertion hole 112a communicates with a notch 112b formed at the upper end of the end plate 110b in order to allow the wire bundle W to pass therethrough. is doing. A rotation sleeve 120 is provided in the insertion hole 112 a of the carrier 110 so as to be rotatable about its rotation center axis (hereinafter referred to as “swivel center”) O.
[0041]
5 to 7, the rotary sleeve 120 has a substantially cylindrical shape, and a U-shaped insertion notch 120a is formed in a part thereof. The insertion notch 120a is open to the periphery of the rotating sleeve 120 and reaches the center of rotation. The wire bundle W is inserted into the insertion notch 120a, and the rotating sleeve 120 is positioned at the center of rotation O of the rotating sleeve 120. It can be inserted.
[0042]
In order to rotatably mount the rotating sleeve 120 on the end plate 112 of the carrier 110, a circumferentially continuous guide groove 120b is formed on the outer peripheral surface of the rotating sleeve 120, and the guide groove 120b is provided in the guide groove 120b. A plurality of guide rollers 121 that are in rolling contact are provided.
[0043]
Each guide roller 121 is disposed between a C-shaped attachment plate 122 formed corresponding to the outer peripheral shape of the rotary sleeve 120 and the end plate 112 and is attached to the attachment plate 122 by a bolt 123 so as to be rotatable. It is what. The mounting plate 122 is fixed to the end plate 112 with bolts 125 via a plurality of spacers 124 (only one is shown in FIG. 5) disposed between the end plate 112 and the rotation center O. Therefore, the smooth rotation of each guide roller 121 is maintained. Accordingly, the rotating sleeve 120 is supported by the guide rollers 121 so as to be smoothly rotatable around the turning center O. Since the insertion notch 120a is formed in the rotating sleeve 120, a part of each guide roller 121 is opposed to the insertion notch 120a by the rotation of the rotating sleeve 120. However, this notch part is a part. Therefore, since the remaining guide roller 121 receives the circumferential groove 120b of the rotating sleeve 120, the holding of the rotating sleeve 120 is not hindered.
[0044]
A gear 126 is fixed to the downstream end portion of the rotating sleeve 120 and is driven to rotate by a rotation driving mechanism 140 provided on the carrier 110.
[0045]
The rotation drive mechanism 140 is decelerated by a motor 141 attached to the holder plate 114 of the carrier 110, a speed reducer 142 connected to an output shaft 141a of the motor 141 (shown only in FIG. 5), and a speed reducer 142. An output gear 143 that outputs the rotational force and a pair of power transmission gears 144 that mesh with the output gear 143.
[0046]
As schematically shown in FIG. 5, the output gear 143 is attached to the output shaft of the speed reducer 142 and is rotationally driven by the motor 141 through the speed reducer 142. The power transmission gears 144 that mesh with the gears 143 have the same diameter (the same number of teeth), and the gears 144 mesh with the portions of the rotating sleeve 120 apart from the gear 126, respectively. Therefore, the rotating sleeve 120 is rotationally driven via the gear train. The gear 126 of the rotating sleeve 120 is cut out at a portion corresponding to the insertion cutout 120a. Even if the cutout portion comes to one position of the power transmission gear 144 and is disengaged, the other is not. Since the meshing state is established, the rotating sleeve 120 is continuously driven to rotate.
[0047]
8 and 9 are perspective views of the slide unit 150 according to the embodiment of FIG. 1, and FIG. 10 is a schematic front view of the wire guide according to the embodiment of FIG.
[0048]
Referring to the drawings, the slide unit 150 includes a stay 151 fixed to the upstream end surface of the rotating sleeve 120 with a bolt (not shown), and a guide rail fixed to the stay 151 and extending in parallel with the turning center O. 152, a slider 153 capable of reciprocating along the turning center O on the guide rail 152, and an electric wire guide 154 attached to the slider 153.
[0049]
The electric wire guide 154 has a guide slit S between a bottom member 154a having a substantially square bar shape, a flat lower guide plate 154b fixed to the outer side of the bottom member 154a, and an upper edge of the lower guide plate 154b. An upper guide plate 154c arranged side by side in the formed state, and a guide member 154d arranged at an interval in the longitudinal direction on the inner side of the bottom member 154a, are surrounded by these members 154a to 154d. By making the space portion to be aligned with the turning center O at the time of assembling, there is an effect of causing the wire bundle W to be wound along the turning center O. A metal guide plate 155 is attached to the downstream end of the wire guide 154. The guide plate 155 includes a side wall portion 155a that covers the outer wall of the guide member 154d fixed to the downstream end of the bottom member 154a, and an end wall portion 155b that covers the downstream end surface of the wire guide 154 continuously with the side wall portion 155a. It has one. Furthermore, an electric wire guide slit 155c that opens in a substantially U shape is formed in the end wall portion 155b. The upper guide plate 154c is supported by the end wall portion of the guide plate 155 in a cantilever manner, thereby maintaining the guide slit S.
[0050]
The wire guide 154 is integrally connected to the slider 153 by a connecting member 156 (see FIG. 9), and is configured to be reciprocally movable along the turning center O. Here, as shown in FIG. 8, a rod stay 157 protrudes from the connecting member 156, and the upstream end of a rod 158 extending downstream is fixed to the rod stay 157. A midway portion of the rod 158 is guided to be slidable along the turning center O by a guide member 159 attached to the stay 151. Therefore, when the wire guide 154 is displaced relative to the rotating sleeve 120 along the guide rail 152, the rod 158 can also be relatively displaced along the turning center O together with the wire guide 154. Further, a nut 160 is fixed to the end of the rod 158, and a coil spring 161 disposed on the outer periphery of the rod 158 is contracted between the nut 160 and the guide member 159. Yes. As will be described later, the coil spring 161 allows the rotating sleeve 120 to shift from a forward movement operation to a backward movement operation.
[0051]
11A and 11B are perspective views showing the configuration of the tape reel 170 according to the embodiment of FIG. 1, wherein FIG. 11A shows a normal feeding posture, and FIG. 11B shows a feeding posture after inversion.
[0052]
Referring to FIGS. 4A and 4B, and FIG. 4 and FIG. 5, a tape reel 170 according to the illustrated embodiment is a substantially U-shaped main holder fixed to the upstream end wall of the rotating sleeve 120. 171 and a sub-holder 172 held by the main holder 171. The main holder 171 integrally includes a pair of arms 171a and a mounting plate 171b that supports the arms 171a in a cantilever manner. The sub-holder 172 is sandwiched between the arms 171a and 171a and the mounting plate. By fixing 171b to the upstream end face of the rotating sleeve 120 with a bolt (not shown), the rotating sleeve 120 can be rotated integrally.
[0053]
The sub-holder 172 is a substantially U-shaped metal member having the same shape as the main holder 171, and includes a pair of arms 172a and 172a coupled to the inside of the arms 171a and 171a and both arms 172a and 172a. An end plate 172b that is supported in a cantilever manner is integrally provided, and a reel body 175 that supports the tape roll R is rotatably attached to the inner wall of the end plate 172b.
[0054]
The holders 171 and 172 are connected by a connecting shaft 176 that connects the corresponding arms 171a and 172a. The connecting shaft 176 allows the sub holder 172 to rotate around the connecting shaft with respect to the main holder 171.
[0055]
Further, the main holder 171 is fixed to the rotary sleeve 120 so that the rotation center O1 of the reel body 175 of the sub-holder 172 intersects the turning center O on the same plane (same horizontal plane in the stopped state) (FIG. 4). reference). Next, the connecting shaft 176 is set in a direction orthogonal to the rotation center O1 of the reel body 175, and the rotation center O1 is fed out from the tape roll R by crossing the rotation center O obliquely. The tape T fed out is orthogonal to the turning center O by extending an inclination posture (see FIG. 11 (A)) that is drawn closer to the upstream side as it goes upstream, and extending substantially parallel to the turning center O. It is comprised so that it can displace between orthogonal attitude | positions (refer FIG. 11 (B)).
[0056]
Further, toggle pins 173a and 173b are erected on the arms 171a and 172a of the main holder 171 and the sub holder 172, respectively, and the pin 173a of the main holder 171 and the pin 173b of the sub holder 172 are connected by a tension coil spring 177. ing. These pins 173a and 173b constitute a toggle with the connecting shaft 176 as a thought point, and the sub-holder 172 can be elastically maintained in either an inclined posture or an orthogonal posture. Furthermore, in the illustrated example, the arm 171a of the main holder 171 is formed with a recess 171c that receives the pin 173b of the inclined sub-holder 172, and the sub-holder 172 is located at a predetermined position on the upper surface of the arm 172 of the sub-holder 172. Is fixed to a stopper 172c that contacts the side of the arm 171a of the main holder 171.
[0057]
12A and 12B are perspective views of the tape cutting unit 180, in which FIG. 12A shows a retracted state and FIG. 12B shows a cutting process.
[0058]
4 and FIG. 5, the tape cutting unit 180 includes a cutter 181, an arm 182 that holds the cutter 181 on the distal end side, a drive shaft 183 that drives the proximal end side of the arm 182, An advance / retreat cylinder 184 that drives the drive shaft 183 in its axial direction and a rotation cylinder 185 that rotates the drive shaft 183 about its axis are provided. The rotating cylinder 185 is provided at a position facing the arm 182, and a surface facing the arm 182 has a safety cover 186 (illustrated only by an imaginary line) that houses a cutter 181 attached to the arm 182. ) Is fixed.
[0059]
In the illustrated example, as shown in FIG. 12A, the arm 182 is usually turned sideways and retracted to the safety cover 186 side, and when the tape T is cut, first, FIG. As shown by the arrow (1), the drive shaft 183 protrudes, the cutter 181 protrudes from the safety cover 186, and as shown by the arrow (2), the drive shaft 183 rotates counterclockwise in the figure to The cutter 181 is cut, and after cutting, as shown by arrows (3) and (4), the cutter 181 is displaced in the opposite direction to return to the posture shown in FIG. When the cutter 181 is at the cutting position (the position indicated by the phantom line in FIG. 12B), the cutter 181 cuts the tape T between the slide unit 150 and the tape reel 170 in the stopped state. Arranged to be able to.
[0060]
Next, referring to FIG. 1, among the parts described above, the drive motor 12a of the LM actuator 12, the rotation drive mechanism 140 of the taping head 100, and the tape cutting unit 180 are interlocked by an interlock control unit 200 including a microprocessor. The operator can perform taping only by operating the operation switch (not shown) by attaching / detaching the wire bundle W to / from the upstream unit 20 and the downstream unit 30 exclusively. It is like that.
[0061]
Next, the operation of this embodiment will be described with reference to FIG.
[0062]
13 is a schematic plan view schematically showing an upstream taping preparation operation in the embodiment of FIG. 1, and FIG. 14 is a schematic plan view schematically showing an upstream taping operation in the embodiment of FIG. .
[0063]
Referring to FIG. 1 and FIG. 1, first, when starting taping, a wire bundle W is stretched between the units 20 and 30 in advance. In this initial state, the taping head 100 is close to the upstream end, and is opened with its electric wire insertion notch facing directly upward. In this state, first, as shown in FIG. 13, only the wire guide 154 of the slide unit 150 is retracted to the downstream side to expose the wire bundle W in the vicinity of the connector C1. In this retracting operation, the nut 160 fixed to the downstream end of the rod 158 relative to the guide member 159 is retracted relatively to the downstream side, so that the spring 161 interposed between the two remains in a free state. It has become. In this state, the tape T is fed out from the tape reel 170, and the end thereof is wound around the outer periphery of the exposed wire bundle W. In this initial tape winding state, the tape reel 170 is in the inclined posture shown in FIG. Next, by displacing the wire guide 154 upstream, the tape T wound around the wire bundle W can be introduced into the guide slit S (see FIG. 10) of the slide unit 150.
[0064]
When the tap switch is started by operating a switch (not shown) in the state shown in FIG. 14, the interlock control unit 200 first drives the rotation drive mechanism 140 of the taping head 100 and the tape reel 170 via the rotation sleeve 120. Is turned around the turning center O, and in conjunction with this, the drive motor 12a (see FIG. 1) of the LM actuator 12 is driven to drive the taping head 100 downstream.
[0065]
The movement from the upstream end to the downstream side is operated at a relatively high speed. Then, the taping head 100 moves downstream and approaches the downstream unit 30.
[0066]
FIG. 15 is a schematic plan view schematically showing the taping operation on the downstream side in the embodiment of FIG.
[0067]
Referring to FIG. 1 and FIG. 1, when the taping head 100 approaches the downstream unit 30, the interlock control unit 200 reduces the operation speed of the drive motor 12 a of the LM actuator 12 and increases the moving speed of the taping head 100. Slow down. Since the deceleration timing varies depending on various taping conditions, experimental values are collected in advance and input to the microprocessor of the interlock control unit 200 in advance. As a result, the taping head 100 approaches the downstream unit 30 while decelerating, and the rotating sleeve 120 is displaced to the outer periphery of the table plate 32c of the downstream unit 30 as shown. By this displacement operation, the tape T fed out from the tape reel 170 of the taping head 100 is fed out with a slight slack. On the other hand, the wire guide 154 of the slide unit 150 attached to the taping head 100 is connected to the guide plate 155 provided at the downstream end of the upstream end of the downstream unit 30 (the end face of the clamping claw 33f of the wire clamp 33 shown in FIG. ) And the subsequent displacement is restricted. On the other hand, since the rotating sleeve 120 moves forward while decelerating thereafter, the rotating sleeve 120 and the slide unit 150 are relatively displaced along the turning center O.
[0068]
16 is a schematic plan view schematically showing the taping operation on the downstream side in the embodiment of FIG. 1, (A) is when the slide unit 150 abuts, and (B) is the slide unit 150 and the rotating sleeve 120. The relative displacement time is shown respectively.
[0069]
As shown in FIGS. 16A and 16B, when the slide unit 150 comes into contact with the upstream end of the downstream unit 30 as described above, the rod 158 integrated with the slide unit 150 (therefore, the rear end of the rod 158). Since the nut 160 fixed to the portion also stops at a fixed position, when the rotating sleeve 120 continues to move forward, the guide member 159 attached to the stay 151 of the rotating sleeve 120 and the nut 160 of the rod 158 The coil spring 161 is compressed between them (see FIG. 16B).
[0070]
When this compression state reaches a predetermined position, the interlock control unit 200 stops the operation of the drive motor 12a (see FIG. 1). Then, this time, the rotating sleeve 120 moves backward from the downstream side to the upstream side by the elastic force of the compressed coil spring 161.
[0071]
FIG. 17 is a schematic plan view schematically showing a taping operation on the downstream side in the embodiment of FIG. 1, (A) is a relative displacement between the slide unit 150 and the rotating sleeve 120, and (B) is a diagram of (A). The time when the rotating sleeve 120 is reversed from the state is shown.
[0072]
Referring to FIG. 17 (A), when the rotating sleeve 120 moves backward, the tape reel 170 moves backward integrally with the rotating sleeve 120. Therefore, with the reverse operation, the main holder 171 of the tape reel 170 and The sub holder 172 rotates around the connecting shaft 176 that connects the sub holder 172, and is displaced from the inclined posture to the orthogonal posture (see FIG. 17B). As a result, the tape T in which sagging has occurred is smoothly wound around the outer periphery of the wire bundle W.
[0073]
When this winding operation ends, the rotating sleeve 120 stops in the same posture as the initial state. After the rotation sleeve 120 stops, the tape cutting unit 180 operates as described with reference to FIGS. 12A and 12B, and the cutter 181 cuts the wound tape T.
[0074]
As described above, in the above-described embodiment, when taping is performed from one end side to the other end side of the wire bundle W stretched in a linear shape, the tape reel 170 of the tape reel 170 by the taping head 100 is the same as a known device. When performing the taping by the turning operation and the relative displacement operation between the taping head 100 and the wire bundle W by the drive mechanism (the motor 12a of the LM actuator 12), the tape T fed from the tape reel 170 is the other of the wire bundle W. When approaching the end side, the interlocking control unit 200 decelerates the displacement speed of the motor 12a and advances the relative displacement between the taping head 100 and the wire bundle W as it is. By this deceleration forward operation, sagging occurs in the tape fed out from the tape reel 170, and excessive tension does not act on the wire bundle W. After that, the relative displacement between the taping head 100 and the wire bundle W is reversed, so that the tape T fed out in a slack state is smoothly wound around the outer periphery of the wire bundle W. Therefore, in the above-described embodiment, it is possible to automate the taping operation by a skilled worker.
[0075]
Further, the taping head 100 according to this embodiment includes a carrier 110, a rotary sleeve 120 that is rotatably provided around the pivot center with respect to the carrier 110, and carries the tape reel 170, and the rotary sleeve 120. And a work guide (electric wire guide) 154 that is mounted so as to be relatively displaceable along the turning center and guides the wire bundle W to the turning center. The wire guide 154 is moved after the taping head 100 decelerates the electric wire. Since the other end side of the wire bundle W is held at a position where it can be guided until the taping operation of the other end portion of the bundle W is completed, the work piece can be used in the process of moving the rotating body forward / reversely. With the guide, the tape can be neatly wound around the end portion of the workpiece. More preferably, a predetermined position (for example, the guide plate 155) between the table plate 32c and the wire guide 154 may be attracted using an electromagnet or the like.
[0076]
Moreover, since the wire guide 154 has a guide slit S that guides the tape wound around the wire bundle W, even if the wire bundle W has a relatively small diameter, the wire guide 154 passes through the guide slit S. Since the tape is precisely guided by the wire bundle W, a good taping state can be obtained.
[0077]
In addition, in the present embodiment, a compression coil spring 161 as an elastic body is provided between the wire guide 154 and the rotating sleeve 120, and the taping head 100 and the wire bundle W are connected by the elastic force of the compression coil spring 161. Since the relative displacement is configured to be reversed from the forward direction, it is possible to switch the relative displacement direction between the taping head 100 and the wire bundle W only by a simple mechanical structure without requiring a complicated control mechanism. There is an advantage.
[0078]
Moreover, the tape reel 170 according to the present embodiment has a toggle mechanism (a connecting shaft 176, toggle pins 173a, 173b, etc.) that switches the posture of the tape roll R in conjunction with the reverse operation of the taping head 100 and the wire bundle W. As a result, it is possible to automatically displace the tape T in the optimum direction according to the taping state, and it is easy to wind the end part where automatic taping is difficult. There is an advantage that it becomes possible to obtain.
[0079]
The relative displacement between the taping head 100 and the wire bundle W is preferably the reciprocating movement of the taping head 100 itself to fix the wire bundle W at a fixed position, but may be reversed.
[0080]
The above-described embodiment is merely a preferred specific example of the present invention, and the present invention is not limited to the above-described embodiment. It goes without saying that various design changes are possible within the scope of the claims of the present invention.
[0081]
【The invention's effect】
As described above, according to the present invention, it is possible to perform a precise taping on an electric wire bundle having connectors connected to both ends up to the terminal portion by automatic operation. Play.
[Brief description of the drawings]
FIG. 1 is a perspective view schematically showing an overall configuration of a tape winding apparatus according to an embodiment of the present invention.
FIG. 2 is a perspective view of an upstream unit according to the embodiment of FIG.
FIG. 3 is a perspective view of a downstream unit according to the embodiment of FIG.
4 is a perspective view of a taping head according to the embodiment of FIG. 1. FIG.
FIG. 5 is an exploded perspective view of the taping head according to the embodiment of FIG.
6 is a side view showing a main part of the taping head according to the embodiment of FIG. 1. FIG.
FIG. 7 is an exploded view of FIG.
FIG. 8 is a perspective view of a slide guide according to the embodiment of FIG.
9 is a perspective view of a slide guide according to the embodiment of FIG.
FIG. 10 is a schematic front view of the wire guide according to the embodiment of FIG. 1;
11A and 11B are perspective views showing the configuration of the tape reel according to the embodiment of FIG. 1, in which FIG. 11A shows a normal payout posture, and FIG. 11B shows a payout posture after inversion.
12A and 12B are perspective views of the tape cutting unit according to the embodiment of FIG. 1, in which FIG. 12A shows a retracted state, and FIG. 12B shows a cutting process.
13 is a schematic plan view schematically showing the taping preparation operation on the upstream side in the embodiment of FIG. 1. FIG.
14 is a schematic plan view schematically showing the taping operation on the upstream side in the embodiment of FIG. 1; FIG.
15 is a schematic plan view schematically showing a taping operation on the downstream side in the embodiment of FIG. 1. FIG.
16 is a schematic plan view schematically showing the taping operation on the downstream side in the embodiment of FIG. 1, wherein (A) is a time when the slide unit is in contact, and (B) is a relative displacement between the slide unit and the rotating sleeve. Each time is shown.
17 is a schematic plan view schematically showing a taping operation on the downstream side in the embodiment of FIG. 1, wherein (A) is a relative displacement between the slide unit and the rotating sleeve, and (B) is a state of (A). The rotation sleeves are shown in reverse directions.
[Explanation of symbols]
10 Tape winding device
12 LM actuator
12a Drive motor
100 Taping head
110 Carrier
120 Rotating sleeve
140 Rotation drive mechanism
150 slide unit
154 Electric wire guide (work guide)
170 Tape reel
173a, 173b Toggle pin (Toggle mechanism)
176 Connecting shaft (Toggle mechanism)
180 Tape cutting unit
200 Interlocking control unit
C1, C2 connector
O Turning center
R tape roll
S Guide slit
T tape
W Wire bundle

Claims (6)

A tape reel that carries a tape roll so that the feeding posture of the tape can be displaced;
A taping head having this tape reel so as to be capable of being swiveled around a swivel center on which the work is disposed;
A linear workpiece stretched along the turning center of the taping head, and a drive mechanism for relatively displacing the taping head along the longitudinal direction of the workpiece, and the tape fed from the tape reel is In the tape winding device that winds from one end of the workpiece to the other end,
The relative displacement speed by the drive mechanism when the taping head taps the workpiece is decelerated when the taping head and the other end portion of the workpiece are close to each other, and after the deceleration, the taping head passes the other end side of the workpiece. An interlocking control unit is provided to control the drive mechanism in conjunction with the taping head so that the relative displacement of the two is advanced to the position, and then the relative displacement of the taping head and the workpiece is reversed to perform taping on the other end side. A tape winding device characterized by that. In the tape winding apparatus according to claim 1,
The taping head is attached to the head body, a rotating body that is rotatably provided around the turning center with respect to the head body, and that supports the tape reel, and is attached to the rotating body so as to be relatively displaceable along the turning center. And a work guide for guiding the work to the center of rotation, and the work guide is supported at the other end of the work after the relative displacement speed is reduced until the taping operation at the other end is completed. A tape winding device characterized in that the tape winding device is held in a guideable position. In the tape winding apparatus according to claim 2,
A tape winding apparatus, wherein the work guide has a guide slit for guiding a tape wound around the work. In the tape winding apparatus according to claim 2 or 3,
An elastic body provided between the work guide and the rotating body, and configured to reverse the relative displacement between the taping head and the work from the forward direction by the elastic force of the elastic body. A tape winding device characterized by that. In the tape winding apparatus according to any one of claims 1 to 4,
The tape winding device, wherein the tape reel has a toggle mechanism that switches a posture of the tape roll in conjunction with a reverse operation of the taping head and the workpiece. A tape reel that carries a tape roll so that the posture of feeding the tape is displaceable, a taping head having the tape reel so as to be capable of pivoting around a pivot center on which a work is disposed, and along the pivot center of the taping head By a tape winding device having a linear work stretched and a drive mechanism for relatively displacing the taping head along the longitudinal direction of the work, the tape fed from the tape reel is fed from one end side of the work. In the tape winding method to wind around the other end side,
The relative displacement speed by the drive mechanism when the taping head taps the workpiece is decelerated when the taping head and the other end portion of the workpiece are close to each other, and after the deceleration, the taping head passes the other end side of the workpiece. The tape is fed around the outer circumference of the workpiece while causing the tape to be fed from the tape reel to sag by moving the relative displacement of the tape to the position and then reversing the relative displacement of the taping head and the workpiece. A tape winding method characterized by rotating.

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