JP2021046263A - Tape winding machine - Google Patents

Abstract

To provide a tape winding machine having such an excellent winding performance of a roll tape that it enables a tape to be wound loosely so as to prevent the tape from coming off an object at start of winding the tape, and then later to be wound tightly around the object.SOLUTION: The tape winding machine includes an arm 3 connected by a rotating shaft 4 fixed to a rotating plate 5 which is provided with a holder portion 2 for holding a roll tape 1 and a pressing portion 7. When the rotating plate 5 is rotated to start winding a tape around an object 8 from the roll tape 1 held by the holder portion 2, instead of pulling out the tape from the roll tape 1, the tape pulled out earlier from the roll tape 1 is wound loosely around the object 8, which can prevent the tape from coming off the object, and after that, the tape is pulled out from the roll tape 1 to be wound around the object 8 while the tape laid over between the roll tape 1 and the object 8 is pressed by the pressing portion 7, which enables the tape to be wound around the object 8 with appropriate strength.SELECTED DRAWING: Figure 3

Description

The present invention relates to a tape winding machine that winds a roll tape around an object such as a bundle of electric wires.

Conventionally, as a part of manufacturing a wire harness for a vehicle, a tape winding device for winding a tape around an electric wire bundle and an exterior member covering the electric wire bundle has been proposed. In the tape winding machine equipped with this tape winding device, the tape supported by a rotating plate that rotates in a plane orthogonal to the object rotates around the object spanned on the center axis of rotation. , The tape is wrapped around an object such as an electric wire.

The tape winding device includes a fixed plate arranged in a plane orthogonal to the object and a rotating plate arranged adjacent to the object as a swivel means for rotating the tape around the object. It is rotationally driven in orthogonal planes.

The fixing plate and the rotating plate may be provided with a U-shaped notch from the outer peripheral edge toward the central region including the central axis in order to insert and remove the object on the rotating central axis of the tape winder. .. In these tape winding machines, the object is inserted and removed with the notch of the fixed plate and the notch of the rotating plate aligned.

JP-A-2015-224123

In the tape winding machine provided in the conventional tape winding device, the end of the roll tape is pulled out and the tape is attached to the object at the start of tape winding, but the adhesive strength is small because the adhesive area between the tape and the object is small. When the tape was insufficiently wound around the object, the tension generated in the tape stretched between the roll tape and the object sometimes caused the tape to come off (separate) from the object.

In the tape wrapping machine provided in the conventional tape wrapping device, the strength of wrapping the tape is determined by the adhesive force of peeling the tape (adhesive force against the non-adhesive surface of the back surface of the tape) between the roll tape and the object. Depending on the object (the wire bundle and the exterior member that covers it), the tape may be loosely wound around the object, and a gap may be created in the wound tape, which is appropriate depending on the tension generated in the stretched tape. In some cases, it could not be wrapped.

The present invention has been made in view of the above circumstances, and an object of the present invention is to wind the tape loosely so that the tape does not come off the object at the start of winding the tape, and then strongly wind the tape around the object. An object of the present invention is to provide a tape wrapping machine having excellent roll tape wrapping performance.

In a tape winding device provided with a rotating plate that is rotationally driven in a plane orthogonal to the object as a swivel means for rotating the tape around the object, the arm is connected by a rotating shaft fixed to the rotating plate. , A holder part for holding the roll tape and a pressing part are provided, and when the rotating plate rotates and the tape is wound around the object from the roll tape held in the holder part, the roll tape is not pulled out from the roll tape. While winding the tape pulled out earlier around the object, the arm rotates inward, and the pressing portion provided on the arm presses the roll tape and the tape stretched over the object. Wrap the tape around the object while moving. At this time, by winding the tape without pulling it out, the tension applied between the tape and the object is suppressed, and the tape is prevented from coming off (separating) from the object.

After that, the pressing portion that has moved to the position where the roll tape and the tape stretched on the object are pressed pushes the roll tape and the tape stretched on the object, and pulls out the tape from the roll tape while pulling out the tape. Wrap it around the object. At this time, on the tape stretched between the roll tape and the object, in addition to the tension due to the peeling adhesive force of the tape (adhesive force against the non-adhesive surface on the back surface of the tape itself), the pressing force by the pressing portion and the pressing force are applied. Friction force from the pressing part is applied, and the tape is strongly wrapped around the object.

According to the present invention, a tape wrapping machine having excellent winding performance of a roll tape capable of loosely winding a tape so that the tape does not come off the object at the start of winding the tape and then strongly winding the tape around the object. And a tape winding device including the tape winding machine can be provided.

FIG. 1 is a perspective view of a tape winding machine according to the present invention. FIG. 2 is a perspective view showing an operation of winding the tape. FIG. 3A is a schematic view showing an operation of starting to wind the tape. FIG. 3B is a schematic view showing an operation of winding the tape. FIG. 3C is a schematic view showing a state in which the tape has been wound.

As shown in FIG. 1, a holder portion 2 is provided at the tip end portion of an arm 3 connected by a rotating shaft 4 fixed to the rotating plate 5 to hold the roll tape 1 (adhesive tape). The arm 3 is provided with a pressing portion 7.

The rotating shaft 4 has a holding force that does not rotate due to the weight of the roll tape 1, the holder portion 2, the arm 3, and the pressing portion 7, and the tape stretched from the roll tape 1 to the object 8 is the target. When the object 8 is wound up and tension is applied between the roll tape 1 and the object 8, the tape is not pulled out from the roll tape 1 and the holding force is within a range in which the arm 3 can easily rotate.

The rotation range of the arm 3 is restricted in the inward rotation direction within a range in which the arm 3 and the pressing portion 7 provided on the arm 3 do not press the object 8. In the outward rotation direction, the center of the roll tape 1 regulates the extension line of the line connecting the rotation center axis and the center of the rotation shaft 4 within a range not exceeding.

The operation of the tape winding machine will be described with reference to FIGS. 1 and 2. FIG. 3 is a schematic view showing a rotating plate 5, an arm 3, and a pressing portion 7 that perform a tape winding operation.

First, the object 8 (electric wire bundle or the like) is held by an operator's hand or a device, and is bridged over the rotation center axis of the rotation plate 5. At this time, as shown in FIG. 1, the pressing portion 7 rotates the arm 3 in the outward rotation direction, so that when the tape is stretched from the roll tape 1 to the object 8, the pressing portion 7 rolls the tape. The tape stretched between 1 and the object 8 is retracted to a position where it is not pressed.

The tape end of the roll tape 1 held at the tip of the arm 3 connected to the rotating plate 5 by the rotating shaft 4 is pulled out, and the tape is attached to the rotating plate 5 about half a circumference of the object 8. At this time, as shown in FIG. 3A, the pressing portion 7 does not press the tape stretched from the roll tape 1 to the object 8.

As shown in FIG. 3A, the rotating plate 5 starts rotating in the direction of rotation 9 in response to the driving force from the driving device, so that the tape stretched from the roll tape 1 to the object 8 is the object. It is wound around 8 and tension is applied between the roll tape 1 and the object 8. Since the holding force of the rotating shaft 4 connecting the rotating plate 5 and the arm 3 is smaller than the peeling adhesive force of the tape (adhesive force against the non-adhesive surface of the back surface of the tape itself), the tape is pulled out from the roll tape 1. Without this, the arm 3 rotates around the rotation shaft 4 in the rotation direction 10 (inward rotation direction), which is the direction in which the roll tape 1 approaches the object 8. At this time, since the tape is wound without pulling out the tape from the roll tape 1, the tension applied between the roll tape 1 and the object 8 is suppressed, so that the tape is loosely wound and the end of the tape attached to the object 8 is attached. The part is suppressed from coming off (separating) from the object 8.

When the rotating plate 5 rotates in the direction of rotation 9, the arm 3 rotates in the direction of rotation 10, and the pressing portion 7 provided on the arm 3 is placed between the roll tape 1 and the object 8. Press the back surface (non-adhesive surface) of the stretched tape. At this time, the tape stretched between the roll tape 1 and the object 8 is pressed by the pressing portion 7 in addition to the tension due to the peeling adhesive force of the tape (adhesive force against the non-adhesive surface of the back surface of the tape itself). The pressure and the frictional force of the pressing portion 7 are applied, and the tape is wound more strongly around the object 8 than when the tape is wound only by the tension due to the peeling adhesive force.

As shown in FIGS. 2 and 3B, during the tape winding operation, the rotating plate 5 rotates in the direction of rotation 9, so that the tape stretched from the roll tape 1 to the object 8 is the object. It is wound around 8 and tension is applied between the roll tape 1 and the object 8. Since the rotation of the arm 3 is restricted within a range in which the arm 3 and the pressing portion 7 provided on the arm 3 do not press the object 8, the roll tape 1 held by the arm 3 is rotated inward. Movement is regulated and retained. Since the roll tape 1 does not move inward in rotation, the tension of the tape causes the tape to be wound around the object 8 while being pulled out from the roll tape 1. When the rotating plate 5 is rotating, tension is applied between the roll tape 1 and the object 8 due to the adhesive force of peeling the tape (adhesive force against the non-adhesive surface of the back surface of the tape), so that the arm Reference numeral 3 denotes a position where the pressing portion 7 presses the back surface of the tape stretched between the roll tape 1 and the object 8. At this time, the tape stretched between the roll tape 1 and the object 8 is pressed by the pressing portion 7 in addition to the tension due to the peeling adhesive force of the tape (adhesive force against the non-adhesive surface of the back surface of the tape itself). The pressure and the frictional force of the pressing portion 7 are applied, and the tape is wound more strongly around the object 8 than when the tape is wound only by the tension due to the peeling adhesive force.

As shown in FIG. 3C, when the tape has been wound and the rotating plate 5 is stopped, the tape is not pulled out due to the peeling adhesive force of the roll tape 1 (adhesive force against the non-adhesive surface of the back surface of the tape itself). , The arm 3 is kept in a position where rotation inward rotation is restricted.

The tape stretched from the roll tape 1 to the object 8 is cut, and the object 8 is removed from the tape winding machine. At this time, the arm 3 can be easily rotated within the regulated range.

As described above, at the start of winding, the tape pulled out earlier is wound around the object without pulling out the tape from the roll tape 1, so that the end of the tape is prevented from coming off (separating) from the object 8. When the tape is wound, the pressing portion 7 provided on the arm 3 presses the back surface of the tape stretched between the roll tape 1 and the object 8, so that the tape is strongly wound around the object 8. Suitable winding is performed.

The present invention is not limited to each of the above embodiments, and various modifications can be adopted within the scope of the present invention. In addition, the material, shape, dimensions, arrangement location, etc. of each component in the above-described embodiment are arbitrary as long as the present invention can be achieved, and are not limited. For example, the shape of the arm, the rotating plate, and the pressing portion.

In addition, the position where the tape is wound is not limited to the lap winding at the same position, and the tape can be spirally wound around the object by moving the tape winding machine and the object relative to each other along the axis of rotation. You can.

Further, the object to which the tape is wound is not limited to the electric wire bundle, and in the present invention, any linear material to which the tape is wound can be used. For example, it may be a single electric wire, a linear member that does not include an electric wire, or a tube-shaped material.

1 Roll tape 2 Holder part 3 Arm 4 Rotating shaft 5 Rotating plate 6 Fixed plate 7 Pressing part 8 Object 9 Rotation direction 10 Rotation direction

Claims (2)

In a tape winding device provided with a rotating plate that is rotationally driven in a plane orthogonal to the object as a swivel means for rotating the tape around the object, the arm is connected by a rotating shaft fixed to the rotating plate. , A holder part for holding the roll tape and a pressing part are provided, and when the rotating plate rotates and the tape is wound around the object from the roll tape held in the holder part, the roll tape is not pulled out from the roll tape. While winding the tape pulled out earlier around the object, the arm rotates inward, and the pressing portion provided on the arm presses the roll tape and the tape stretched over the object. A tape winding device characterized in that the pressing portion moves and then winds the tape around the object while pulling out the tape from the roll tape while pressing the roll tape and the tape stretched to the object. When tension is not applied between the roll tape and the object, the arm is rotated outward so that when the tape is stretched from the roll tape to the object, the tape to which the pressing part is stretched is stretched. The tape winding device according to claim 1, wherein the pressing portion provided on the arm retracts to a position where it is not pressed.

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