JPH07215599A - Tape winding device - Google Patents

Abstract

PURPOSE:To prevent whirling of an electric wire bundle in a device for spirally winding a tape sequentially round the outer periphery of an electric wire bundle at a fixed pitch. CONSTITUTION:A rotator 40 is connected to a driving source in a device main body 10 to turn the rotator 40. An insert notch 401 for inserting an electric wire bundle is formed on a part of the rotator 40. A tape holder 60 is provided on the radial outside of the rotator 40 in such a manner as to rotate with the rotator 40. A guide element 70 is provided below the tape holder 60 in such a manner as to rotate with the rotator 40. A substantially U-shaped guide notch 701 for guiding the electric wire bundle to the center of rotation is formed in a position substantially aligned with the insert notch 401 of the guide element 70.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape winding device for automatically winding a tape around an outer circumference of an electric wire bundle in which a plurality of electric wires are bundled at a constant pitch.

[0002]

2. Description of the Related Art For example, a wire harness for an automobile is
A plurality of electric wires of a predetermined length are bundled and fixed with tape etc.,
Terminals are attached to both ends of each electric wire, and each terminal is inserted into the connector. In the production of the above wire harness, when taking out the assembled wire harness from the workbench, the tape is spirally formed at a constant pitch on the outer circumference of the wire bundle in which a plurality of wires are bundled so that the wire bundle does not become separated. There is a so-called tape winding work for winding and fixing on. This tape winding operation is achieved by spirally winding the tape around the outer circumference of the wire bundle while applying a constant tension to the tape. Therefore, the tape winding operator needs to repeatedly perform the winding operation while always putting effort on the wrist. Such a winding work is a work that puts a heavy burden on the wrist. Therefore, automation and mechanization of tape winding work have been attempted.

Therefore, various tape winding devices have been proposed in the past, for example, as disclosed in Japanese Patent Application Laid-Open No. 4-54417, in order to solve the problems at the time of winding the tape. The structure of the tape winding device disclosed in this publication is shown in FIGS. 8 and 9. FIG. 8 is a perspective view showing the configuration of a conventional tape winding device, and FIG. 9 is a front view of the same. With reference to these drawings, in a conventional tape winding device, a base 1 to which grips 1a, 1b, 1c and a drive motor M are attached, and a base 1 is vertically fixed below the base 1 to form a circular ring. , A guide ring 2 provided with a notch (not shown) in a part of the lower side of the ring, and the guide ring 2.
And a substantially L-shaped notch, which is slidably held by the drive motor M and swivels around the center of the guide ring 2 as a rotation axis and has a notch 31 formed in a part thereof. The positioning plate 4 attached to the rotating body 3 and the outer side of the rotating body 3 in the radial direction are provided so that the L-shaped corner portion 41 can be moved and adjusted in the radial direction from the rotation axis of the rotating body 3. A tape holder 5 adapted to rotate together with the rotating body 3; and a swing plate 8 pivotally supported by the tape holder 5 and having a supporting roller 6 and a guide roller 7 of the tape reel TR attached thereto. ing.

That is, in the above-described conventional tape winding device, when the switch is turned on and the drive motor M is driven, the driving force is transmitted to the rotating body 3, whereby the positioning plate 4, the tape holder 5 and the tape. Reel TR is rotating body 3
It is configured so as to make a swivel motion about the rotation axis of the. When using this conventional tape winding device, first, the tape reel TR is attached to the support roller 6 via the tape wheel 9. Next, the grips 1 on the front left and right of the base 1
While holding either b or 1c and the grip portion 1a in the front-rear direction, the notch of the guide ring 2 and the notch 3 of the rotating body 3 are held.
The electric wire bundle WB is positioned at the center of the rotating body 3 by matching 1 and 1. At this time, the positioning plate 4 is adjusted and slid according to the thickness of the wire bundle WB so that the wire bundle WB comes to the center of the rotating body 3. Next, after unwinding the tape T from the tape reel TR and hooking it on the guide roller 7,
Wrap it around the wire bundle WB. From this state, drive motor M
While rotating the rotating body 3 by driving the gripping portion 1
The wire bundle WB is moved backward with a constant movement amount while maintaining the horizontal at a, 1b, and 1c. As a result, the tape T is sequentially spirally wound around the outer circumference of the wire bundle WB at a constant pitch.

[0005]

In the tape winding operation, the tape is wound around the wire bundle while applying a constant tension to the tape. Therefore, the wire bundle is subjected to a force that swings in the outer peripheral direction due to the tension of the tape. At this time, in the conventional tape winding device, the positioning plate for positioning the wire bundle has a substantially L-shape, and guides the wire only from one side. Therefore, the wire bundle is not guided to the center of rotation. As a result, the wire bundle is shaken by the tension of the tape when the tape is wound. Therefore, when the tape winding operation is performed, the tape cannot be neatly wound in a predetermined state unless the wire bundle and the tape winding device are fixed by overcoming this external force. Such an operation of fixing the wire bundle and the tape winding device imposes a special burden on a tape winding operator, leading to a reduction in working efficiency. Moreover, the upper part of the positioning plate is weak in strength and easily damaged, which also contributes to a reduction in work efficiency.

The present invention has been made in view of the above technical problems, and an object thereof is to provide a tape winding device capable of preventing whirling of a wire bundle.

[0007]

The means for solving the problems according to claim 1 of the present invention is a device for spirally winding a tape around an outer periphery of a wire bundle at a constant pitch, the device having a drive source incorporated therein. A main body, and a rotating body that is connected to a drive source in the apparatus main body, rotates by the drive source, and has an insertion notch formed in a part thereof for inserting a wire bundle; Radially outside the rotating body,
A tape holder for holding the tape winding body, which is adapted to rotate together with the rotating body, and a notch of the rotating body, which is adapted to rotate together with the rotating body below the tape holder. A guide body having a substantially U-shaped guide notch for guiding the bundle of electric wires to the center of rotation is formed at a substantially coincident position.

According to a second aspect of the present invention, the problem solving means is the first aspect.
In the tape winding device described above, each of the guide bodies has a substantially L-shaped cutout, and a pair of positioning plates having corners of each cutout formed into an arc shape are combined to form the guide cutout. Is formed, and the connecting portion of each of the positioning plates is provided with adjusting means for adjusting the width interval of the guide notch according to the thickness of the wire bundle. And

According to a third aspect of the present invention, the problem solving means is the second aspect.
In the tape winding device described above, the adjusting means includes a long hole formed in a connecting portion of each of the positioning plates in a direction intersecting with the bundle of electric wires, and a screw inserted in each of the long holes and screwed into the rotating body. And an adjusting screw to be fitted.

[0010]

In the means for solving the problems according to the above-mentioned claim 1, when the driving source is driven, the driving force is transmitted to the rotating body,
The guide body and the tape holding body rotate together with the rotating body. As a result, the tape is spirally wound around the outer circumference of the wire bundle at a constant pitch. At this time, since the wire guide notch of the guide body is formed in a substantially U shape to position the wire bundle from both sides, the wire bundle is always guided to the rotation center. As a result, whirling of the wire bundle can be prevented.

In the problem solving means according to the second aspect, the adjusting means can adjust the width interval of the guide notch of the guide body according to the thickness of the wire bundle. As a result, it is possible to easily deal with electric wire bundles having different thicknesses. In the problem solving means according to the third aspect, the width of the notch for guiding can be adjusted to the thickness of the wire bundle simply by inserting the adjusting screw into the long hole formed in the coupling portion of each positioning plate and screwing the adjusting screw. It can be adjusted accordingly.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a front view showing the configuration of a tape winding device according to an embodiment of the present invention, and FIG. 2 is a sectional view of the same. The tape winding device of the present embodiment automatically and sequentially winds the tape in a spiral pattern at a constant pitch around the outer circumference of the wire bundle WB1 (see FIG. 6) laid on a wiring plate (not shown). The tape winding speed can be adjusted according to the conveying speed of the wiring board conveyed and moved on the wiring line.

In FIGS. 1 and 2, reference numeral 10 is a tape winding device body. The device body 10 is formed in a box shape having an opening on the front surface, and moves so as to move along a guide rail (not shown) bridged along a wiring line.
It is suspended from the guide rail. A drive motor M, which is a drive source when the tape is wound, is provided in the apparatus body 10.
1 is decorated. A gripping punch 20 is attached to a side surface of the apparatus body 10 on the tape winding operator side, and a front opening of the apparatus body 10 is closed by a bracket 30 longer than the apparatus body 10.

The gripping pestle 20 is for maintaining the levelness of the apparatus main body 10 and is a rod-shaped body extending in a direction intersecting with the wire bundle WB1. A grip 201 is fitted to the tip of the gripper 20. When the tape winding device moves along the guide rail, the gripper 20
The operator holds the apparatus main body 10 horizontally. As a result, the tape winding operation can be performed smoothly, and the tape can be wound neatly in a predetermined state.

The bracket 30 is a plate-shaped body having a predetermined shape, and a substantially U-shaped notch 301 is formed in the lower portion thereof. The notch 301 is for inserting the wire bundle WB1. The output shaft OS of the drive motor M1 penetrates through the upper portion of the bracket 30.
A drive gear G1 and an output gear G2 are coaxially rotatable with each other. The output gear G2 is fixed to the drive gear G1 via a pin P1 so as to rotate integrally with the drive gear G1. Below the bracket 30, a rotating body 40 is provided which is rotated by the drive motor M1. A pair of intermediate gears G3 (only one side appears in the drawing) that meshes with the output gear G2 and the rotary body 40 is provided between the output gear G2 and the rotary body 40. The driving force of the drive motor M1 is transmitted to the rotating body 40 via the drive gear G1, the output gear G2, and the intermediate gear G3, and as a result, the rotating body 40 makes a turning motion. The drive gear G1, the output gear G2, and the intermediate gear G3 are connected to the cover 5
It is covered with 0.

An encoder E is attached to the upper portion of the cover 50 to take out the rotation pulse of the drive gear G1 and the output gear G2 and detect the winding amount of the tape. The encoder E is a proximity sensor and is a drive gear G1.
When the pin P1 connecting the output gear G2 with the output gear G2 is brought close to the pin P1, the pin P1 is turned on to extract the rotation pulse of the drive gear G1 and the output gear G2.

The rotary body 40 has a substantially U-shaped notch 401 formed therein so as to substantially coincide with the wire bundle insertion notch 301 of the bracket 30 on the inner side in the radial direction, and has a substantially horseshoe shape. The notch 401 of the rotating body 40 is formed by the wire bundle WB.
It is for inserting 1. A tape holding body 60 is provided diagonally above and outside the rotating body 40 in the radial direction.

The tape holder 60 includes a bracket 601.
A base plate 602 attached to the upper portion of the bracket 601 via a bolt B, a cylinder 603 attached to a substantially central portion of the base plate 602, an operation punch 604 inserted into the cylinder 603, and an operation punch. A knob 605 attached to the tip end portion of 604, a compression coil spring 606 interposed between the base plate 602 and the lower end of the operating punch 604 and biasing the operating punch 604 toward the knob 605, and a tubular body 603. And a tape wheel 607 that is detachably inserted into the gap between the tape winding body TR1 and the tape winding body TR1 to lock the tape winding body TR1 and fix it to the base plate 602. Cylindrical body 603
Is made of an elastically deformable synthetic resin, and a slit (not shown) is formed in the upper part of the synthetic resin so that the diameter is reduced as the operating punch 604 moves, and the base is provided with pins P2 and P3. It is fixed to 602. On the inner surface of the upper portion of the cylindrical body 603 which is divided into two by this slit, a tapered surface 603a corresponding to the shape of the operating punch 604,
603b is formed. Therefore, when the knob 605 is pushed, the operating punch 604 is pushed by the base 602 along with the pushing force.
To the side, the spring 606 contracts. As a result, the tubular body 6
Since the contact between the tapered surfaces 603a and 603b of No. 03 and the operating punch 604 is released and the diameter of the upper portion of the cylindrical body 603 is reduced, the tape wheel 607 and the tape winding body TR1 can be taken out easily. A guide body 70 for guiding the wire bundle WB1 to the center of rotation is provided below the tape holder 60.

The guide body 70 is made of a synthetic resin such as nylon resin or Teflon resin, which has a small frictional resistance with the electric wire bundle WB1. U-shaped cutout 7 to match
01 (see FIG. 3) is formed. This notch 701
Is for preventing the wire bundle WB1 from swinging around and guiding the wire bundle WB1 to the center of rotation. Then, the guide body 70 is inserted into the adjusting screws N1, N2, N3, and the rotating body 4 is inserted.
It is fixed to the bracket 30 by being screwed into 0.

That is, in the above tape winding device, when the switch is turned on to drive the drive motor M1, the drive gear G1 and the output gear G2 coupled to the drive motor M1 rotate, and subsequently mesh with the output gear G2. As the intermediate gear G3 rotates, the driving force of the drive motor M1 is transmitted to the rotating body 40. As a result, since the guide body 70 and the tape holding body 60 are integrally attached to the rotating body 40, they rotate together with the rotating body 40.

FIG. 3 is a front view showing the structure of the guide body. Referring to the figure, the guide body 70 connects the pair of positioning plates 71 and 72 to each other, and forms the substantially U-shaped notch 4 of the rotating body 40.
A wire bundle guide notch 701 corresponding to 01 is formed. 4A and 4B show the configuration of the first positioning plate. FIG. 4A is a front view thereof and FIG. 4B is a side view thereof. Further, FIG. 5 shows the configuration of the second positioning plate. FIG. 5A is a front view thereof and FIG. 5B is a side view thereof. Referring to FIG. 4, the first positioning plate 71
Is formed in a substantially C shape, and the inner guide side is
It has a substantially L-shaped notch 711, and the corners of the notch 711 are arcuate. The connecting portion of the first positioning plate 71 and the wire bundle guide portion are provided with long holes 712 and 713, respectively, in a direction intersecting with the wire bundle WB1. Further, a through hole 714 that allows the insertion of the connecting portion of the second positioning plate 72 is formed in the connecting portion of the first positioning plate 701.

Referring to FIG. 5, the second positioning plate 72 is
It is formed in a substantially C shape, and the guide side inside is approximately L
It has a character-shaped notch 721, and the corners of the notch 721 are arcuate. The connecting portion of the second positioning plate 72 and the electric wire bundle guide portion are provided with long holes 722 and 723 in a direction intersecting with the electric wire bundle WB1. That is, in the guide body 70, the positioning plates 71 and 72 are joined so as to match the thickness of the wire bundle WB1, and then the long holes 712 and 722 are formed in the joining portions of the positioning plates 71 and 72.
The adjusting screw N1 is inserted into the rotary body 40 and screwed into the rotating body 40, and the long holes 713 are formed in the wire guide portions of the positioning plates 71 and 72.
By adjusting screws N2 and N3, respectively, and screwing them into the rotating body 40, the width intervals of the wire bundle guide notches 701 can be adjusted according to the thickness of the wire bundle WB1. There is.

When using the above tape winding device, first, the tape winding body TR1 is attached to the cylindrical body 603 via the tape wheel 607. Next, the notch 401 of the rotating body 40
The electric wire bundle WB1 to the rotating body 4
Position it at the center of 0. At this time, according to the thickness of the wire bundle WB1, the positioning plates 71 and 72 of the guide body 70 are slid to adjust the width interval of the notch 701 for guiding the wire bundle, and the wire bundle WB1 is positioned at the center of the rotating body 40. I will wear it. Next, let out the tape from the tape winding body TR1,
Wrap it around the wire bundle WB1. From this state, the drive motor M1 is driven to rotate the rotating body 40, and the device body 10 is moved by a certain amount of movement while maintaining the horizontal state by the gripping punch 20. As a result, the tape is sequentially wound around the outer circumference of the wire bundle WB1 at a constant pitch.

FIG. 6 is a diagram schematically showing a tape winding state. By rotating the rotating body 40, the wire bundle W
The tape begins to wrap around B1. At the same time, a certain tension is applied to the tape and the tape is wound around the wire bundle WB1. This accomplishes the tape winding operation. The resultant force of the tape releasing tension and the gravity applied to the wire bundle WB1 at this time is sufficiently larger than the gravity of the tape releasing tension applied to the wire bundle WB1. Therefore, when the component of the resultant force is divided into the component in the axis AA direction and the component in the vertical direction, the component of the force in the axis AA direction is dominant.

The direction of the force is from the center of the wire bundle WB1 to the center of the tape winding TR1. Therefore, although the magnitude of the force fluctuates by one rotation of the tape winding body TR1 and the guide body 70, the direction of the force is mainly the axis A-A direction, and the wire bundle WB1 is arranged in the wire guide notch 701 of the guide body 70. The force that pushes against will work.

In the above, the tape release tension is equal to the wire bundle WB.
It is assumed that the weight of the wire bundle WB1 is sufficiently large compared to the gravity applied to 1 when the tape is wound by the tape winding device because the mass of the wire bundle WB1 is supported by many assembly jigs on the wiring harness drawing board. Although it is empirical that the mass of the wire bundle WB1 in the specific section is sufficiently smaller than the mass of the entire wire harness, the gravitational force applied to the wire bundle WB1 is relative to the tape release tension. I think it is small enough.

Further, since the wire guide notch 701 is formed in a substantially U shape so as to position the wire bundle WB1 from both sides, the wire bundle WB1 is always centered on the rotation as shown in FIG. You will be guided. as a result,
The whirling of the wire bundle WB1 can be absorbed. In this way, by using the guide body 70 having the substantially U-shaped notch 701 for wire guide, it is possible to prevent whirling of the wire bundle WB1 due to the tape releasing tension, and as a result, the burden on the operator is reduced. In addition, the tape winding work can be performed smoothly and a higher quality tape winding work can be realized. In particular, it is most suitable for high efficiency by rotating the rotating body 40 at high speed.

The present invention is not limited to the above embodiment, and it goes without saying that many modifications and changes can be made within the scope of the present invention. In the above embodiment, the guide body 7
Although 0 has been described as an example in which a pair of positioning plates 71, 72 is connected, as shown in FIG. 7, the guide body 70 is a single positioning plate, and the wire guide notch 701 is a thick wire of the wire bundle WB1. The object of the present invention can be sufficiently achieved even if a plurality of products formed according to the above conditions are prepared.

[0029]

As is apparent from the above description, according to the first aspect of the present invention, the notch for guiding the electric wire of the guide body is formed in a substantially U shape so that the electric wire bundle is positioned from both sides. The wire bundle is always guided to the center of rotation. As a result, whirling of the wire bundle can be absorbed, and the state of tape winding can be kept constant,
The quality of tape winding is improved. In addition, the burden on the operator can be reduced.

In the second aspect, the adjusting means can adjust the width interval of the guide notch of the guide body in accordance with the thickness of the wire bundle, and as a result, it is possible to easily deal with the wire bundle having different thicknesses. it can. In the third aspect, the width of the guide notch can be adjusted according to the thickness of the wire bundle simply by inserting the adjusting screw into the elongated hole formed in the coupling portion of each positioning plate and screwing the adjusting screw into the rotating body. .

[Brief description of drawings]

FIG. 1 is a front view showing a configuration of a tape winding device according to an embodiment of the present invention.

FIG. 2 is a sectional view of the same.

FIG. 3 is a front view showing a configuration of a guide body.

4A and 4B show a configuration of a first positioning plate, FIG. 4A is a front view thereof, and FIG. 4B is a side view thereof.

5A and 5B show a configuration of a second positioning plate, FIG. 5A is a front view thereof, and FIG. 5B is a side view thereof.

FIG. 6 is a diagram schematically showing a tape winding state.

FIG. 7 is a plan view showing the configuration of another guide body.

FIG. 8 is a perspective view showing a configuration of a conventional tape winding device.

FIG. 9 is a front view of the same.

[Explanation of symbols]

 10 device body M1 drive motor 20 gripping punch 40 rotary body 401 notch for insertion 60 tape holder TR1 tape winding body 70 guide body 71, 72 positioning plate 712, 713, 722, 723 long hole N1, N2, N3 adjusting screw

Claims (3)

[Claims] 1. A device for sequentially winding a tape around an outer periphery of an electric wire bundle at a constant pitch, the device main body having a drive source incorporated therein, and the device being connected to the drive source in the device main body. A rotating body that is swung by the drive source and has an insertion notch for inserting a wire bundle in a part thereof; and a rotating body that rotates with the rotating body radially outside the rotating body. The tape holder for holding the tape winding body and the tape holding body under the tape holder are adapted to rotate together with the rotating body, and the electric wire is provided at a position substantially matching the notch of the rotating body. A tape winding device, comprising: a guide body having a substantially U-shaped guide notch for guiding the bundle to the center of rotation. 2. The tape winding device according to claim 1, wherein each of the guide bodies has a substantially L-shaped cutout, and a pair of positioning plates each having a corner of each cutout in an arc shape. The guide notches are formed by being coupled with each other, and the adjusting means for adjusting the width interval of the guide notches in the joint portion of each positioning plate according to the thickness of the electric wire bundle. Is provided. 3. The tape winding device according to claim 2, wherein the adjusting means has elongated holes formed in a connecting portion of each of the positioning plates in a direction intersecting the electric wire bundle, and the elongated holes. The adjusting screw is inserted and screwed into the rotating body.