JP6667772B1 - Tape winding device and tape winding method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tape winding device capable of winding an adhesive tape with appropriate strength. A tape winding device configured to wind an adhesive tape T fed from a tape reel TR around a first region R1 of a linear work H. Revolving movement means 4 for supporting the tape reel TR rotatably in the feeding direction of the adhesive tape T and rotatably around the axis of the work H, and an end portion of the above-mentioned adhesive tape T fed from the tape reel TR. Is adhered to the first area R1, and the operation means for winding the adhesive tape T around the first area by operating the turning movement means and turning the tape reel TR. The turning movement means is provided with a tension reducing means for reducing the tension associated with the feeding by winding the above-mentioned adhesive tape T around the first region R1 without feeding the adhesive tape T. [Selection diagram] FIG.

Description

  The present invention relates to a tape winding device and a tape winding method in which an adhesive tape is wound around a required area of a linear work such as a wire harness in which a plurality of electric wires are bound.

  In electric equipment of vehicles such as automobiles, wire harnesses are often used for power supply and signal communication. As a wire harness, it is well known that a plurality of bundled electric wires are housed and bundled in a soft resin protective tube, and a connector is attached to an end of the electric wire bundle pulled out from an end of the protective tube. is there. In such a wire harness, the adhesive tape may be spirally wound (hooked from the end of the protective tube to the drawn end of the wire bundle) and shipped as a product. In this tape winding operation, when wrapping the protective tube with an adhesive tape, the protective tube is wound with little tension so that the protective tube is not deformed, and then pulled out from the end of the protective tube. It is necessary to wind tightly around the drawn-out portion of the bundle of electric wires without loosening in order to improve the accommodation. As described above, a very delicate and precise operation is required for winding a wire harness tape depending on a product.

  Conventionally, the operation of winding the adhesive tape in such a wire harness has been mainly performed manually, but automation or semi-automation is being studied in order to improve work efficiency and the like.

  In such a situation, as a tape winding device for winding an adhesive tape around a linear work such as an electric wire bundle or the like, devices as shown in the following Patent Documents 1 to 3 have been proposed. This tape winding device is provided with a tape reel that rotates around the axis of the linear work with respect to the linear work arranged along the horizontal direction, and rotates the tape reel while feeding out the adhesive tape from the reel. In addition, by moving the linear work relative to the tape reel along the axial direction, the adhesive tape can be spirally wound around a required area of the linear work.

Patent No. 3194320 Patent No. 3780829 JP-A-7-101641

  However, in the conventional tape winding devices shown in Patent Documents 1 to 3, since the tape is wound around the linear work while being fed, the tension accompanying the feeding of the tape acts on the linear work, and the adhesive tape is used. The tape can be wound around the linear work while being strongly pulled. For this reason, using this tape winding device, when trying to wind the adhesive tape around the wire harness containing the wire bundle in the flexible protective tube, the wire harness is wound by the adhesive tape while receiving strong tension, The flexible protective tube is compressed and deformed, and the pressure-sensitive adhesive tape is wound around in the deformed state. As described above, in the conventional tape winding device, there is a problem that the adhesive tape cannot be loosely wound around the linear work such as a wire harness with a soft protective tube with an appropriate strength.

  The present invention has been made in view of the above-mentioned problems, and even with respect to a linear work such as a wire harness with a protective tube, the adhesive tape is loosely wound around a portion of the protective tube with appropriate strength. It is an object of the present invention to provide a tape winding device and a tape winding method that can perform the same.

  In order to solve the above problems, the present invention includes the following means.

[1] A tape winding device configured to wind an adhesive tape fed from a tape reel around a first region of a linear work,
Turning movement means for rotatably supporting the tape reel in a direction in which the adhesive tape is fed out and turning about the axis of the work;
Actuating means for winding the adhesive tape around the first area by operating the turning movement means to rotate the tape reel in a state in which the end of the preceding adhesive tape fed from the tape reel is adhered to the first area. And
The turning movement means is provided with a tension reducing means for reducing the tension accompanying the feeding by winding the preceding adhesive tape around the first area without feeding the adhesive tape. Tape winding device.

  [2] The above item [1], wherein the turning means includes a radial moving means for moving the tape reel in a direction approaching the work while turning the tape reel, and the tension reducing means is constituted by the radial moving means. Tape winding device.

[3] The turning movement means includes an arm which also serves as the radial movement means and has first and second links,
One end of the first link is rotatably mounted around the axis of the work as a fulcrum,
At the other end of the first link, one end of the second link is rotatably attached, and at the other end of the second link, a tape reel is installed,
3. The tape winding device according to the above item 2, wherein the tape winding device is configured to move the tape reel in a direction approaching the work while rotating the tape reel by rotating the first and second links.

[4] further comprising an axial moving means for supporting the work relatively movably along the axial direction with respect to the tape reel,
The work is provided with a second region adjacent to the first region,
The operating means moves the tape reel from the first area to the second area by the axial movement means while rotating the tape reel by the swiveling movement means, thereby moving the adhesive tape from the first area to the second area. The tape winding device according to any one of the preceding items 1 to 3, which is configured to be wound spirally over the tape.

  [5] The tape winding according to the above item 4, wherein the turning movement means is configured to apply tension to the adhesive tape by feeding the adhesive tape from the tape reel while winding the adhesive tape around the second area. Attachment device.

  [6] The tape winding device according to the aforementioned item 5, further comprising a work suppressing means for pressing the work toward the axis against the tension of the adhesive tape wound around the second area.

  [7] The tape according to the above [6], wherein the turning movement means is configured to slide a tape reel rotating in the second area to the work, and the work suppressing means is constituted by the tape reel that slides. Winding device.

[8] The work is constituted by a wire harness including an electric wire, a protective tube for accommodating the electric wire, and a terminal attached to an edge of a drawing end of the electric wire drawn from an end opening of the protective tube. And
The tape winding device according to any one of items 4 to 7, wherein an end of the protective tube is configured as a first region, and a lead end of the electric wire is configured as a second region.

[9] A tape winding method in which an adhesive tape fed from a tape reel is wound around a first region of a linear work,
Turning movement means for rotatably supporting the tape reel in a direction in which the adhesive tape is fed out and turning about the axis of the work is provided,
By using the swiveling movement means and operating the swiveling movement means to rotate the tape reel in a state where the end of the preceding adhesive tape fed from the tape reel is adhered to the first area, the adhesive tape is Is wound around the first area,
A tape characterized in that when the adhesive tape is wound around the first area, the tension caused by the unwinding is reduced by winding the preceding adhesive tape around the first area without feeding out the adhesive tape. Winding method.

  [10] The method according to the aforementioned item 9, wherein the turning means includes a radial moving means for moving the tape reel in a direction approaching the work while turning the tape reel, and the radial moving means reduces the tension accompanying the feeding. The described tape winding method.

[11] Axial direction moving means for supporting the work relatively movably along the axial direction with respect to the tape reel is provided,
The work is provided with a second region adjacent to the first region,
The adhesive tape is spirally wound from the first area to the second area by moving the tape reel from the first area to the second area by the axial movement means while rotating the tape reel by the swing moving means. 10. The tape winding method according to the above item 9 or 10.

  [12] The tape winding method according to the above [11], wherein when the adhesive tape is wound around the second area, the adhesive tape is fed out from the tape reel to apply tension to the adhesive tape.

  [13] When the adhesive tape is wound around the second area, the tape reel is swung while sliding against the work, so that the work is moved toward the axial center against the tension of the adhesive tape by the tape reel in sliding contact. 13. The tape winding method according to the above item 12, wherein the pressing is performed.

  According to the tape winding device of the invention [1], since the preceding adhesive tape is wound around the first region without feeding out the adhesive tape, and the tension accompanying the feeding is reduced, the adhesive tape is used. Can be loosely wound around the first region with appropriate strength. Therefore, for example, even when the first region is configured by a flexible protective tube or the like, harmful deformation of the first region can be prevented, and a favorable wound state can be obtained. Further, the work is not strongly pulled by the swiveling tape reel, and the work is held at a regular position without being swung, so that the adhesive tape can be accurately wound.

  According to the tape winding device of the invention [2], the tape reel is moved closer to the center of the work when turning, so that the above-mentioned adhesive tape can be reliably wound, and the above-mentioned effects can be more reliably obtained. be able to.

  According to the tape winding device of the invention [3], since the tape reel is moved close to the center of the work using the link mechanism, the operation reliability can be improved, and the above effect can be obtained more reliably. Can be.

  According to the tape winding device of the invention [4], the adhesive tape can be continuously wound over a wide range from the first region to the second region.

  According to the tape winding device of the invention [5], when the adhesive tape is continuously wound from the first area to the second area, the first area can be loosely wound and the second area can be strongly wound. Therefore, for example, when a wire harness in which the end of the protective tube is used as the first region and the end of the wire drawn out from the end is used as the second region, the work is ideal, for example. A proper winding state can be reliably realized.

  According to the tape winding device of the invention [6], when the adhesive tape is wound around the second area, the tension due to the feeding of the adhesive tape acts, but the work can be suppressed by the work suppressing means against the tension. The work can be prevented from being swung, and the adhesive tape can be wound around the second area with high accuracy.

  According to the tape winding device of the invention [7], since the tape reel is also used as the work suppressing means, the number of parts can be reduced, and the structure can be simplified and the cost can be reduced.

  According to the tape winding device of the invention [8], a wire harness or the like in which the electric wire is accommodated in the protective tube can be adopted as the work.

  According to the tape winding methods of the inventions [9] to [13], since the adhesive tape is wound on the linear work by using the main part of the device invention, the same effect as above can be obtained. it can.

FIG. 1 is a perspective view showing a tape winding device according to an embodiment of the present invention. FIG. 2 is a side view showing the tape winding device of the embodiment. FIG. 3 is a plan view showing the tape winding device of the embodiment. 4A and 4B are views showing the periphery of the arm in a standby state immediately before winding in the tape winding device of the embodiment, where FIG. 4A is a perspective view and FIG. 4B is a front view. 5A and 5B are views showing the periphery of the arm during the first area winding in the tape winding device according to the embodiment. FIG. 5A is a perspective view, and FIG. 5B is a front view. 6A and 6B are views showing the periphery of the arm immediately after the start of the second area winding in the tape winding device according to the embodiment, where FIG. 6A is a perspective view and FIG. 6B is a front view. FIG. 7 is a perspective view showing the wire harness before the adhesive tape is wound by the tape winding device of the embodiment. FIG. 8 is a perspective view showing the wire harness after the adhesive tape has been wound by the tape winding device of the embodiment. FIG. 9 is a front view showing the vicinity of a tape reel turning section of a tape winding device according to a modification of the present invention.

  In the present embodiment, an adhesive tape T is wound around a predetermined area of a wire harness H as a linear work shown in FIG. 7 using a tape winding device shown in FIGS. The wire harness H is manufactured.

  First, the configuration of the wire harness H will be described. As shown in FIG. 7, in the present embodiment, the wire harness H includes an electric wire bundle 91 composed of a plurality of electric wires, and a protective tube 92 made of a soft synthetic resin that accommodates the electric wire bundle 91 in a loosely fitted state. . A wire bundle 91 is drawn out from the end of the end of the protective tube 92 by a predetermined amount, and a connector 93 as a terminal is attached to the end of the drawn end.

  In the present embodiment, the end of the protective tube 92 of the wire harness H is configured as a first region R1, and the drawing end of the wire bundle 91 adjacent to the first region R1 is configured as a second region R2. ing. Then, as shown in FIG. 8, the adhesive tape T is continuously wound spirally from the first region R1 to the second region R2 using the tape winding device of the present embodiment.

  Here, when winding the adhesive tape T around the wire harness H, the ideal winding method is to wind the adhesive tape T around the first region R1 with little application of the tension, and to protect the protective tube 92. And loosely wrap it so that the cross section is kept almost circular without deforming the shape. Subsequently, the adhesive tape is wound around the second region R <b> 2 while sufficiently applying its tension, and wound around the wire bundle 91 in a strong and stable state. Thus, it is an ideal winding method to loosely wind the adhesive tape T around the first region R1 and strongly wind it around the second region R2. In addition, the vicinity of the second region R2 in the first region R1, that is, the edge of the protective tube 92 is wound in a state where a certain amount of tension is applied, and the edge of the protective tube 92 is in a state of being slightly compressed and deformed. ing.

  In the present embodiment, when the wire harness H is referred to, both the wire harness H before the adhesive tape T is wound (see FIG. 7) and the wire harness H after the adhesive tape T is wound (see FIG. 8). When it is necessary to distinguish the wire harness H before the adhesive tape T is wound, the wire harness H without the tape is referred to as “wireless harness H without tape”, and the wire harness H around which the adhesive tape T is wound is referred to as a “tape”. With wire harness H ". Further, as described later, the wire harness H in the course of winding the adhesive tape T by the tape winding device of the present embodiment is referred to as “wire harness H being wound”.

  Next, a tape winding device of the present embodiment for winding the adhesive tape T around the tape-less wire harness H will be described.

  FIG. 1 is a perspective view showing a tape winding device according to an embodiment of the present invention, FIG. 2 is a side view, and FIG. 3 is a plan view. In this specification and the appended claims, to facilitate understanding of the invention, the right side is referred to as “front side (front)” and the left side is referred to as “rear side (rear side)” when viewed in FIG. 2 and FIG. It will be described as.

  As shown in FIGS. 1 to 3, the tape winding device of the present embodiment includes a base 1, and a guide rail 11 is attached to an upper surface of the base 1 along a front-rear direction.

  A horizontal portion of an L-shaped movable plate 2 is attached to the guide rail 11 so as to be slidable in the front-rear direction. An electric motor 21 is fixed on the upper surface of the horizontal portion of the movable plate 2 in a state in which the rotation shaft of the electric motor 21 extends forward through the vertical portion of the movable plate 2.

  A lower pulley 22 is fixed to a rotating shaft of the electric motor 21, and the lower pulley 22 is configured to rotate when the electric motor 21 is driven to rotate.

  A fixing plate 3 is fixed to one side of the rear part on the base table 1 in an upright state. The upper portion of the fixed plate 3 is disposed so as to protrude above the guide rail 11, and is disposed to face the rear surface of the upper portion of the movable plate 2.

  A rear end of a fixed shaft 31 is fixed to an upper end of the fixed plate 3 so as to extend forward. The fixed shaft 31 penetrates an upper end of the movable plate 2, and a front end of the fixed shaft 31 is further fixed. It is arranged so as to project forward of the movable plate 2. The fixed shaft 31 is in a non-rotating state, and the movable plate 2 is configured to be slidable with respect to the fixed shaft 31 in the front-rear direction.

  Further, the cylinder 32 is fixed to the fixed plate 3 in a penetrating state with the advance / retreat rod facing forward, and the front end of the advance / retreat rod is fixed to the movable plate 2. When the reciprocating rod advances and retreats by driving the cylinder 32, the movable plate 2 is configured to move in the front-rear direction along the guide rail 11 and the fixed shaft 31 following the reciprocating operation.

  In the present embodiment, the fixed shaft 31 functions as a guide member when the movable plate 2 moves back and forth similarly to the guide rail 11.

  In the present embodiment, the cylinder 32 is used as a mechanism for moving the movable plate 2 back and forth. However, the present invention is not limited to this. In the present invention, a ball screw mechanism using an electric motor or the like as a drive source, a rack The movable plate 2 may be moved back and forth using an and pinion mechanism, a cam mechanism, or the like.

  On the front side of the movable plate 2, an upper pulley 23 is attached to the fixed shaft 31, and the upper pulley 23 is configured to rotate around the axis of the fixed shaft 23. Further, a belt 24 is stretched between the upper pulley 23 and the lower pulley 22, and when the lower pulley 22 rotates by the driving of the electric motor 21, the upper pulley 23 rotates in the same direction via the belt 24. It is configured to be.

  A connector holder 25 is attached to the front end of the fixed shaft 31. The connector holder 25 is formed with a connector housing recess 26 opening upward, and a front wall is formed with an electric wire insertion notch 27 penetrating the front wall and opening upward. I have. As shown in FIG. 4, the connector 93 of the wire harness H can be accommodated and held in the connector accommodating recess 26 of the connector holder 25 in a suitable state, and the wire bundle 91 of the wire harness H can be inserted and cut off in the held state. It can be inserted through the part 27 and pulled out forward. In this state where the connector 92 is held, the axis of the wire harness H (the axis of the wire bundle 91 and the axis of the protection tube 92) can be arranged in a state substantially coinciding with the axis of the fixed shaft 23.

  Here, in the present embodiment, the guide rail 11, the movable plate 2, the fixed shaft 31, and the connector holder 25 constitute an axial direction moving means. Further, an operating means is constituted by the electric motor 21 and the cylinder 32.

  One end of a first link 41 is attached to the front side of the upper pulley 23 behind the connector holder 25 so as to fit the fixed shaft 31 outside. The first link 41 is rotatably arranged about the axis of the fixed shaft 23 in cooperation with the upper pulley 23. Further, the other end of the first link 41 is fixed to the rear end of a spacer shaft 43 horizontally arranged in the front-rear direction, and one end of the second link 42 is attached to the front end of the spacer shaft 43. The shaft 43 is rotatably mounted around the axis.

  Further, a reel mounting shaft 45 is mounted on the other end of the second link 42 in a state where the reel mounting shaft 45 is disposed so as to extend in the front-rear direction.

  The reel mounting shaft 45 is configured such that the tape reel TR is mounted in an externally fitted state with the axes thereof aligned. In this mounting state, the tape reel TR is configured to be rotatable around the axis, and the tape reel TR is wound in a direction in which the adhesive tape T is unwound with respect to the second link 42 (clockwise toward the plane of FIG. 4). It is configured to be rotatable.

  A pair of lock claws 46, 46 are provided at the front end of the reel mounting shaft 45, and the corresponding lock claws 46, 46 are configured to be able to open and close along a radial direction orthogonal to the axial direction. I have. When the lock claws 46 are opened as shown in FIG. 1, the tape reel TR attached to the reel attachment shaft 45 is locked to the lock claws 46, 46 so that the reel attachment shaft of the tape reel TR is When the lock claws 46, 46 are closed while the lock claws 46, 46 are closed, the lock claws 46, 46 are not locked to the tape reel TR, so that the tape reel TR can be attached to and detached from the reel mounting shaft 45. It is configured.

  Although not shown, in the tape wrapping device of the present embodiment, a harness holding means for holding the wire harness H is provided in front of the connector holder 25, and the connector holder 25 accommodates and holds the connector 93. By holding the front side of the wire harness H by the harness holding means, the wire harness H can be supported in a state where the wire harness H is horizontally arranged along the front-rear direction.

  Here, in the present embodiment, the first link 41, the second link 42, and the spacer shaft 43 constitute the arm 4, and the arm 4 and the reel mounting shaft 45 constitute the turning movement means.

  When the first link 41 rotates in conjunction with the upper pulley 23 by driving the electric motor 21 as described above, the arm 4 also rotates the spacer shaft 43 and the second link 42 with the rotation, and The tape reel TR installed at the other end of the two links 42 is configured to rotate around the axis of the fixed shaft 31 (wire harness H).

  On the other hand, the tape wrapping device of the present embodiment is provided with control means (not shown) for controlling the operation, and as described later, connects the wire harness H and the tape reel TR (adhesive tape T) to predetermined positions. By giving an operation start command to the control means by, for example, pressing a start button in the winding start standby state, the control means controls the driving of the electric motor 21 and the cylinder 32 to be described later. Operation is automatically performed. The control means is constituted by, for example, a microcomputer.

  Next, the operation of the tape winding device of the present embodiment will be described.

  In the initial state of the tape winding device, the movable plate 2 is disposed at a position where the rod of the cylinder 32 has advanced and the movable plate 2 has moved forward. 4B, the arm 4 is arranged in a V-shape with the opening angle between the second link 42 and the first link 41 set to an acute angle, and the arm 4 is The other end of the second link 42 is arranged so as to be separated from one end.

  In the present embodiment, the rotation of the first link 41 and the second link 42 in the opening direction, that is, the rotation of the second link 42 in the clockwise direction with respect to the first link 41 in the front view of FIG. The opening angle between the first link 41 and the second link 42 is configured not to be larger than the initial state.

  Subsequently, the tape-less wire harness H on which the adhesive tape T is not wound is set in the tape winding device in the initial state. That is, the connector 93 of the wire harness H without tape is accommodated in the connector holder 25, and the drawn-out end of the wire bundle 91 of the wire harness H without tape is inserted and arranged in the wire insertion notch 27 of the connector holder 25. Further, the front side of the wire harness H without tape is held by the harness holding means, and the wire harness H without tape is horizontally arranged in the front-rear direction along the axis of the fixed shaft 31.

  A tape reel TR is mounted on the reel mounting shaft 45 of the arm 4. In the mounted state, the tape reel TR is in the first region R <b> 1 which is the end of the protection tube 92 in the set tape-free wire harness H. It is arranged corresponding to. Needless to say, the work of attaching the tape reel TR may be performed as needed.

  Subsequently, the adhesive tape T is unwound from the tape reel TR by a predetermined amount, and the edge of the unwound adhesive tape T (the above-described adhesive tape T) is bonded to the first region R1 of the tape-free wire harness H as shown in FIG. And fix it. In this manner, the tape-less wire harness H, the tape reel TR (adhesive tape T), and the like are set, and a standby state immediately before winding is set.

  In this state, an operation start command is given to the control means. Then, as shown in FIG. 5, the electric motor 21 is driven to rotate the arm 4, and the tape reel TR rotates around the first region R1 in the wire harness H without tape. During this turning, the previously-adhesive adhesive tape T which has been fed out is wound in advance, and while the first and second links 41 and 42 rotate together with the winding, the second link 42 remains in the first position. By rotating with respect to the link 41, the other end side (the tape reel TR side) of the second link 42 moves toward one end side (the work center side) of the first link 41. Due to this movement, the adhesive tape T is not fed out from the tape reel TR, and only the preceding adhesive tape T that has been fed out before the operation starts is wound around the first region R1. For this reason, the tension caused by feeding (peeling) of the adhesive tape T is not applied to the adhesive tape T, and the adhesive tape T is weakly and gently wound around the first region R1 in a state where the tension hardly acts. It is being done. Accordingly, the periphery of the first region R1 of the wire harness H is not strongly pulled by the revolving reel tape TR, and the periphery of the first region R of the wire harness H being wound is not swung by the tension. As a result, the adhesive tape T is wound in a state where the harness H1 being wound is held at a regular position, so that the adhesive tape T can be wound in a stable state with high accuracy, and the occurrence of winding failure is caused. And the like can be reliably prevented.

  Furthermore, since the adhesive tape T is loosely wound around the first region R1, the desired tube shape can be maintained without the protective tube 92 constituting the first region R1 being deformed. In addition, the occurrence of defective winding can be more reliably prevented.

  After the tape reel TR makes one rotation in the first region R1, the advancing / retracting rod of the cylinder 32 is driven backward while the turning operation of the tape reel TR is continued, and the entire arm 4 including the tape reel TR is retracted. The tape reel TR moves from the first region R1 of the wire harness H being wound to a position corresponding to the second region R2, that is, the tape reel TR moves in the axial direction with respect to the harness H being wound. Move backward along. Thereby, the adhesive tape T is continuously wound spirally from the first region R1 to the second region R2. Also at the time of this winding, the first and second links 41 and 42 rotate and the tape reel TR moves toward the center of the work, so that only the above-mentioned adhesive tape T that has been fed out in advance is wound. With little tension applied, it is gently and gently wound. Therefore, similarly to the above, the harness H being wound is not swung so as to follow the rotation of the tape reel TR, and the adhesive tape T can be wound around the wire harness H accurately and stably. Inadvertent deformation or the like does not occur in 92.

  Here, in the present embodiment, the adhesive tape T is wound from the first region R1 to the second region R2 by rotating the tape reel TR three times while moving in the axial direction.

  In the present embodiment, the first link 41, the second link 42, and the spacer shaft 43 of the arm 4 constitute a radial moving unit and a tension reducing unit.

  Thereafter, at the time when the retraction of the advance / retreat rod of the cylinder 32 is completed and the movement of the arm 4 including the tape reel TR in the axial direction is completed, that is, at the time when the tape reel TR reaches a position corresponding to the second region R2. As shown in FIG. 6, the operation of the tape reel TR approaching the wire harness H being wound is also completed, and the outer circumferential surface of the tape reel TR is the outer circumferential surface of the second region R2 in the wire harness H being wound. Contact

  Subsequently, with the tape reel TR kept in contact with the second region R2, the tape reel TR turns around the harness while sliding on the wire harness H, so that the adhesive tape T is wound around the second region R2. At the time of this winding, the adhesive tape T is wound around the second region R2 while being fed out from the tape reel TR. Therefore, the pressure-sensitive adhesive tape T is strongly wound around the second region R2 in a state in which tension due to feeding (peeling) is applied. In this manner, the adhesive tape T can be wound around the second region R2 in a strong and stable ideal state, and the failure such as the occurrence of winding failure can be more reliably prevented.

  Further, when the adhesive tape T is wound around the second region R2, the tape reel TR rotates around the harness while tension is applied to the wire harness H, but the tape reel TR contacts the wire harness H being wound. Therefore, the tape reel TR suppresses the wire harness H being wound to the work center side against the tension. Therefore, the wire harness H1 being wound can be prevented from being adversely affected by the tension from the rotating tape reel TR, and the wire harness H being wound is held at a desired regular position without being swung. The adhesive tape T can be wound in a stable state with high accuracy, and failures such as poor winding can be more reliably prevented.

  In the present embodiment, after the retreating movement of the arm 4 including the tape reel TR is completed, the tape reel TR makes one rotation, ends the turning operation, and stops.

  After stopping, by rotating the second link 42 with respect to the first link 41, the tape reel TR is separated from the wire harness H while feeding out the adhesive tape T, and then the tape reel TR and the second region R2 are separated. The adhesive tape T is cut off with a cutter knife or the like. Thereby, the wire harness H (wire harness shipping product) with the tape around which the adhesive tape T is wound is formed.

  Thereafter, when the wire return harness H with tape is taken out from the tape winding device and a cylinder return button or the like is pressed, the reciprocating rod of the cylinder 32 advances, and the arm 4 moves forward, and FIGS. Return to the initial front position shown in FIG. Further, if necessary, the arm 4 is rotated to return to the initial rotational position shown in FIGS.

  After the tape winding device is returned to the initial state in this way, a new tape-free wire harness H is set to be in the standby state immediately before the above-described winding, and the winding operation is performed in the same manner as described above to remove the tape-attached wire harness H. To manufacture. By repeating such an operation, a number of tape-attached wire harnesses H are sequentially manufactured.

  As described above, according to the tape winding device of the present embodiment, after the adhesive tape T is loosely wound around the first region R1 which is the end of the protective tube of the wire harness H, the drawing end of the wire bundle 91 continues. By strongly winding the adhesive tape T around the second region R2, the adhesive tape T can be wound in an ideal wound state, and a high-quality wire harness H can be provided.

  Further, the winding operation of the adhesive tape T can be performed almost automatically, and the wire harness H can be manufactured efficiently.

  In the above-described embodiment, an example will be described in which the radial moving unit that moves the tape reel TR toward the center of the work during the rotation is configured by a link mechanism such as the first and second links 41 and 42. However, the present invention is not limited to this, and in the present invention, any mechanism that can move the tape reel TR toward the center of the work during turning is adopted as the radial moving means. be able to. For example, a rail member extending from the center of the work along the radial direction perpendicular to the work axis is arranged, and the tape reel TR is slidably mounted on the rail member along the length direction (radial direction). By rotating the rail member around the center of the work as a fulcrum and rotating the tape reel TR around the work (wire harness H), the tape reel TR is slid along the rail member toward the work center. As in the above embodiment, the adhesive tape T can be wound around a predetermined area of the wire harness H with almost no tension. As described above, in the present invention, the slide mechanism may constitute the radial moving means.

  However, in the present invention, the adhesive tape can be wound in a more stable state by using a link mechanism having high operation reliability as in the above embodiment.

  Further, in the above-described embodiment, as the tension reducing means, the radial moving means for moving the tape reel TR to the center of the work by the link mechanism is adopted. However, the present invention is not limited to this. Tension reducing means that does not move the reel TR relative to the center of the work may be employed. For example, as shown in FIG. 9, a tape reel TR is installed so as to rotate around the wire harness H while keeping a certain distance from the wire harness H, and a tape reel TR is provided between the work center and the tape reel TR. The tension roller 15 is installed so as to be movable in the circumferential direction (turning direction). Then, in the standby state immediately before winding, as shown by the solid line in the figure, the adhesive tape T fed from the tape reel TR is adhered to the wire harness H via the tension roller 15, so that the adhesive tape T is " It is arranged in a character shape and a large feeding amount (advancing amount) is set in advance. In this state, as shown by the imaginary line in the figure, while rotating the tape reel TR and the tension roller 15, the tension roller 15 is moved with respect to the tape reel TR so as to reduce the feeding amount. This makes it possible to reduce the amount of advance of the adhesive tape T that has been advanced in advance (the amount of advance) and wind the reduced amount around the wire harness H without having to newly advance the adhesive tape T from the tape reel TR. The adhesive tape T can be loosely wound around the wire harness H in an ideal state as in the above-described embodiment without exerting a tension caused by the feeding. As described above, in the present invention, the tension reducing unit can be configured by a mechanism that does not change the distance between the center of the work and the tape reel TR.

  Further, in the above embodiment, when the adhesive tape T is strongly wound around the second region R2 of the wire harness H while being unwound from the tape reel TR, the tape reel TR is brought into contact with the wire harness H to suppress the wire to the center of the work. Although the harness H is prevented from being swung, the work suppressing means is not limited to this in the present invention. For example, in the second region R2, a work suppressing means such as a spatula is arranged between the tape reel TR and the wire harness H, and the tape reel TR is kept separated from the second region R2 of the wire harness H. While turning, the wire harness H may be pressed against the center of the work against the tension of the adhesive tape T by the work suppressing means to prevent the wire harness H from swinging (swinging). As described above, in the present invention, it is not always necessary to constitute the work suppressing means by the tape reel itself.

  However, in the present invention, when a member other than the tape reel is formed as the work suppressing means, it is necessary to separately attach the work suppressing means, and accordingly, the number of constituent members increases, which complicates the structure and costs. May increase. For this reason, in the present invention, if the tape reel itself is also used as the work suppressing means as in the above embodiment, the number of components can be reduced, and the structure can be simplified and the cost can be reduced.

In the present invention also may, if a mechanism that can be brought close to the workpiece while turning the tape re Lumpur, shape of the members constituting the arm or the like is not limited, especially as the rotary body The shape of the first link may be any shape. For example, in the arm of the steam embodiment, instead of the first link 41, a disk-shaped or ring-shaped rotator whose rotation axis coincides with the axis of the work (wire harness H) is provided, and the rotator is provided with a spacer. The second link 42 may be attached via a shaft 43 or the like.

  Further, in the above-described embodiment, drive means such as the electric motor 21 and the cylinder 32 are used as operating means for generating power (operating force) for rotating the tape reel and moving the tape reel in the axial direction. However, the present invention is not limited to this, and in the tape winding device of the present invention, the operating means may be configured to generate an operating force for turning or axially moving the tape reel by human power of an operator. . For example, it is also possible to provide a handle as an actuating means in the tape winding device, so that the operator can rotate the handle and rotate the tail reel or move in the axial direction by the rotation operation force. It is.

  Further, in the above-described embodiment, a mechanism for moving the tape reel TR (arm 4) along the axial direction while the wire harness H is fixed in position is employed as the axial direction moving means. However, the present invention is not limited to this. In the present invention, the tape reel TR (arm 4) is fixed without moving in the axial direction, and the wire harness H (linear work) is moved in the axial direction. Alternatively, both the tape reel TR and the linear work may be moved in the axial direction.

  In the present invention, when the adhesive tape T is wound around the second region R2 of the wire harness H, the width of the second region R2 (the length of the drawing end of the wire bundle 91) is small, and the tape width of the adhesive tape T is small. If the tape width is smaller than that, the tape width narrowing means is provided between the tape reel TR and the second region R2 so as to suppress the adhesive tape T from both sides to reduce and deform the tape width. The tape width may be narrowed by means and wound around the second region R2.

  Further, in the above embodiment, the protection tube 92 of the wire harness H is configured by a flat flexible tube having no irregularities on the outer peripheral surface. However, the present invention is not limited thereto. A so-called corrugated tube or the like having unevenness such as a bellows shape may be used.

  Further, in the present embodiment, the case where the wire bundle 91 of the wire harness H is configured by two wires has been described as an example. However, the present invention is not limited thereto, and the wire harness used in the present invention may be configured such that the wire bundle is It may be constituted by three or more electric wires, or may be constituted by accommodating not one bundle but one electric wire in the protective tube. That is, in the present invention, the number of electric wires provided in the wire harness is not particularly limited.

  Further, in the above embodiment, the case where the wire hearth H is used as the linear work has been described as an example. However, the present invention is not limited thereto. Even a simple member can be used as a linear work. For example, the present invention can be applied to a case where an adhesive tape is directly wound around a single electric wire or a bundle of electric wires. Furthermore, in the present invention, the linear work does not necessarily need to include the electric wire, and may be a linear member or a tube-like member that does not include the electric wire.

  INDUSTRIAL APPLICABILITY The tape winding device of the present invention can be suitably used when winding an adhesive tape around a linear work such as a wire harness in which a wire bundle is housed in a protective tube.

21: Electric motor (operating means)
32: cylinder (actuation means)
4: Arm (turning movement means)
41: First link 42: Second link 91: Electric wire bundle (electric wire)
92: Protection tube 93: Connector (end)
H: wire harness R1: first region R2: second region T: adhesive tape TR: tape reel

Claims (13)

A tape winding device configured to wind an adhesive tape fed from a tape reel around a first region of a linear work,
Turning movement means for rotatably supporting the tape reel in a direction in which the adhesive tape is fed out and turning about the axis of the work;
Actuating means for winding the adhesive tape around the first area by operating the turning movement means to rotate the tape reel in a state in which the end of the preceding adhesive tape fed from the tape reel is adhered to the first area. And
The turning movement means is provided with a tension reducing means which does not apply the tension accompanying the feeding by winding the preceding adhesive tape around the first area without feeding the adhesive tape. Tape winding device.   2. The tape according to claim 1, wherein the turning movement unit includes a radial moving unit that moves the tape reel in a direction approaching the workpiece while turning the tape reel, and the tension reducing unit is configured by the radial moving unit. Winding device. The turning movement means includes an arm which also serves as the radial movement means, and has first and second links,
One end of the first link is rotatably mounted around the axis of the work as a fulcrum,
At the other end of the first link, one end of the second link is rotatably attached, and at the other end of the second link, a tape reel is installed,
The tape winding device according to claim 2, wherein the first and second links are configured to move the tape reel in a direction approaching the work while rotating the tape reel by rotating the first and second links. Further provided is an axial direction moving means for supporting the work relatively movably along the axial direction with respect to the tape reel,
The work is provided with a second region adjacent to the first region,
The operating means moves the tape reel from the first area to the second area by the axial movement means while rotating the tape reel by the swiveling movement means, thereby moving the adhesive tape from the first area to the second area. The tape winding device according to any one of claims 1 to 3, wherein the tape winding device is configured to be spirally wound around the tape.   5. The tape winding device according to claim 4, wherein the turning movement unit is configured to apply tension to the adhesive tape by feeding the adhesive tape from the tape reel while winding the adhesive tape around the second area. .   The tape winding device according to claim 5, further comprising a work suppressing unit that presses the work toward the axis against the tension of the adhesive tape wound around the second area.   7. The tape winding according to claim 6, wherein the turning movement unit is configured to slide a tape reel that rotates in a second area to the work, and the work suppressing unit is configured by the tape reel that slides. apparatus. The work is configured by a wire harness including an electric wire, a protective tube that stores the electric wire, and a terminal attached to an edge of a drawing end of the electric wire drawn out from an end opening of the protective tube,
The tape winding device according to any one of claims 4 to 7, wherein an end of the protective tube is configured as a first region, and a leading end of the electric wire is configured as a second region. A tape winding method in which an adhesive tape fed from a tape reel is wound around a first region of a linear work,
Turning movement means for rotatably supporting the tape reel in a direction in which the adhesive tape is fed out and turning about the axis of the work is provided,
By using the swiveling movement means and operating the swiveling movement means to rotate the tape reel in a state where the end of the preceding adhesive tape fed from the tape reel is adhered to the first area, the adhesive tape is Is wound around the first area,
A tape characterized in that when the adhesive tape is wound around the first area, the adhesive tape is wound around the first area without feeding out the adhesive tape, so that no tension is applied during the feeding. Winding method. 10. The method according to claim 9, wherein the turning means includes a radial moving means for moving the tape reel in a direction approaching the work while turning the tape reel, so that the radial moving means does not apply tension caused by feeding. Tape winding method. Axial direction moving means for supporting the work relatively movably along the axial direction with respect to the tape reel is provided,
The work is provided with a second region adjacent to the first region,
The adhesive tape is spirally wound from the first area to the second area by moving the tape reel from the first area to the second area by the axial movement means while rotating the tape reel by the swing moving means. The tape winding method according to claim 9 or 10, wherein   12. The tape winding method according to claim 11, wherein when the adhesive tape is wound around the second area, the adhesive tape is paid out from the tape reel to apply tension to the adhesive tape. When the adhesive tape is wound around the second area, the tape reel is rotated while sliding on the work, so that the work is pressed against the shaft center side against the tension of the adhesive tape by the tape reel in sliding contact. The tape winding method according to claim 12, wherein the tape is wound.

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