JPH0740927A - Tape binding device - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain a tape binding device such as a wire which has excellent workability and can perform a good binding process. [Structure] A rotation driving means 10 such as a torque motor,
A rotating member 25 that winds an adhesive tape T around an object to be bound H such as a bundle of wires, a tape support mechanism 30 that holds the adhesive tape T, and a feeding roller that feeds the supplied adhesive tape T to the object to be bound H. 40, a tape guide 50 for feeding and guiding the adhesive tape T, a retraction urging mechanism 60 for urging the adhesive tape T backward by the upper hand of the feeding roller 40, and a rotating member 25 at a predetermined rotation position. A stopping mechanism 70 for stopping the tape T and a tape cutting mechanism 80 for cutting the adhesive tape T are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape binding device for automatically binding a bundled wire such as a wire harness of an automobile with an adhesive tape.

[0002]

2. Description of the Related Art Conventionally, as this type of apparatus, Japanese Patent Laid-Open No. 63-63
The device disclosed in Japanese Patent No. 248616 is known. FIG. 9 is an explanatory view showing each step of the tape winding state of the conventional device. The conventional device will be described below with reference to the drawings. In this device, an adhesive tape T is hung down in front of a rotating body 92 provided with an opening 91, a bundled object H such as a wire is pushed into the adhesive tape T in the opening 91, and the rotating body 92 is rotated. By doing so, the adhesive tape T is wrapped around the outer periphery of the article H to be bound and bound.

[0003]

However, the above-mentioned conventional device has the following problems. (1) As shown in FIG. 9, the feeding roller 4 for the adhesive tape T
Since 0 is provided outside the center of rotation, which is the winding work unit, the bundled object H pushed into the opening 91 of the rotating body 92 is pulled by the tension of the adhesive tape T as the rotating body 92 rotates. Thus, the material to be bound H is always pulled to the outside of the opening 91. Therefore, the bound object H may be disengaged from the opening 91 and the winding operation may be interrupted, or the bound object H may be caught between the rotating body 92 and the apparatus frame (not shown), and the surface thereof may be damaged. , The object to be bound H in the opening 9
1. A strong holding force that keeps the center of rotation inside is required.

(2) Further, when the adhesive tapes T are spirally bound in the longitudinal direction of the article H to be bound, the apparatus is forcibly slid, so that the adhesive tape T attached and the adhesive tape T in the apparatus. Distortion occurs between the two. Therefore, the adhesive tape T attached to the object to be bound H has more wrinkles and cannot be wound well.

(3) Also, the adhesive tape T on the object to be bound H
After the end of winding, the front end of the cut back adhesive tape T is held at the cutting position, so that there is a possibility that the front end of the adhesive tape T may protrude from the object to be bound H at the beginning of the next winding.

The present invention has been made in view of the above points, and an object thereof is to provide a tape binding device having excellent workability and capable of performing a good binding process.

[0007]

In order to achieve the above object, the present invention has the following constitution. That is, the invention according to claim 1 is a tape tying device for tying an adhesive tape around an outer circumference of an object to be bound such as a bundle of wires, in which the rotation drive means and the object to be bound are fitted U
A rotary member having a letter-shaped opening and driven by the rotary drive means; a tape support mechanism provided on the rotary member for detachably holding an adhesive tape wound in a roll shape; A tape guide that is provided to guide the adhesive tape from the tape support mechanism, and a delivery roller that is provided on the inner side of the opening of the rotating member and that delivers the adhesive tape guided by the tape guide to the object to be bound, It is equipped with.

The invention described in claim 2 is the same as claim 1.
In the apparatus described in the item (1), the feeding roller is formed in a truncated cone shape.

The invention described in claim 3 is the same as claim 1
Alternatively, in the apparatus according to the second aspect, a retracting biasing mechanism that biases the adhesive tape backward in a direction opposite to the tape supply direction is provided between the feeding roller and the tape supporting mechanism.

[0010]

The operation of the present invention is as follows. According to the first aspect of the invention, the feeding roller for feeding the adhesive tape to the object to be bound is provided on the inner side of the opening of the rotating member that is the operation unit for winding the adhesive tape, thereby rotating the rotating member. Along with this, the object to be bound is pulled by the tension of the adhesive tape toward the back of the opening, and the object to be bound with the adhesive tape is always pressed against the back side wall surface of the opening while the adhesive tape is wrapped. Go.

According to the second aspect of the present invention, since the feeding roller for feeding the adhesive tape to the object to be bound has a truncated cone shape, the adhesive tape extends along the peripheral wall surface of the truncated cone to lengthen the object to be bound. It slides in the direction and is fed out.

According to the third aspect of the present invention, since the retracting biasing mechanism is provided between the feeding roller and the tape supporting mechanism, the end of the adhesive tape cut after the winding is finished has a predetermined length. And is pulled back to the delivery roller side. Then, it waits for the next winding of the object to be bound.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing the entire tape binding device according to the embodiment. First, the configuration of the present apparatus will be described with reference to the diagram of the standby state of the present apparatus shown in FIG.

The tape tying device according to the embodiment has a rotary driving means 10 such as a torque motor, a U-shaped rotating member 25 for wrapping an adhesive tape T around an object to be bound H, and an adhesive wound in a roll. A tape support mechanism 30 for holding the tape T, a feeding roller 40 for feeding the supplied adhesive tape T to the object to be bound H, a tape guide 50 for feeding and guiding the adhesive tape T to the feeding roller 40, and a feeding roller 40, a retracting urging mechanism 60 for urging the adhesive tape T backward in the direction opposite to the tape supply direction, a stop mechanism 70 for holding the rotating member 25 at a predetermined rotation position, and a tape cut for cutting the adhesive tape T. The structure of each part is described in detail below.

FIG. 2 is a partially cutaway front view showing an enlarged peripheral mechanism of the rotary member. 3 is a sectional view taken along the line AA, and FIG. 4 is a sectional view taken along the line BB. The rotary drive means 10 is composed of a drive source 13 such as a torque motor with a clutch, and the body part of the rotary drive means 10 is grasped by an operator during work. The frame 11 is attached to the front end portion of the housing of the drive source 13 via the column 12. A U-shaped opening 14 is formed at the front end of the frame 11.

A worm gear 15 is attached to an intermediate portion of the rotary shaft 13a of the drive source 13, and a tip portion of the worm gear 15 is rotatably supported by a column 16 attached near the center of the frame 11. As shown in FIGS. 3 and 4, a worm wheel 17 that meshes with the worm gear 15 includes a support frame 12 provided on the support column 12 and the support column 16, and a frame 11.
It is rotatably supported by and. A drive gear 19 is directly connected to and supported by the worm wheel 17 on the frame 11 side. The drive gear 19 is sandwiched across the horizontal axis Y.
A driven gear 20, which is symmetrical with, is rotatably supported between a frame 11 and a cover frame 18 via a shaft 21. The gear 22 is loosely fitted to the shaft 22a axially fixed on the horizontal axis Y, and meshes with the drive gear 19 and the driven gear 20.

The driving gear 19 and the driven gear 20 have the same number of teeth, and the driving gear 1 is driven by a gear 22.
9 and the driven gear 20 are rotated in the same direction at the same rotation speed.
A toothless gear 26 fixed to a rotating member 25, which will be described later, is always meshed with one of the drive gear 19 and the driven gear 20. A lever 71 of a stop mechanism 70 described later is pivotally supported on the shaft 22a.

FIG. 5 is a front view showing the rotating member, and FIG.
Is a sectional view taken along the line CC. The structure of each part for feeding and guiding the adhesive tape T will be described below with reference to the drawings. The rotating member 25 is a disk-shaped member having a U-shaped opening 27 toward the center as shown in FIG.
So that it is at the same position as the cutout portion of the gear 26,
The rotating member 25 and the gear 26 rotatably sandwich the frame 11. By rotating the rotating member 25 while holding the object to be bound H at the center of rotation of the opening 27,
The adhesive tape T is wound around the outer periphery of the article H to be bound and bound.

As shown in FIG. 6, the tape support mechanism 30 has a shaft 31 fixed to the lower part of the front surface of the rotary member 25 and fixed at a point a at the tip of the shaft 31, as shown in FIG. A pair of claws 3 which are urged outward by a spring member 32 around
3 are arranged to face each other, and the free ends of the claws 33 are pivotally supported so as to project from the outer periphery of the shaft 31. A disc-shaped cover 34 is attached to the tip of the shaft 31. A core portion formed by winding the adhesive tape T in a roll is loosely fitted onto the shaft 31 between the rotating member 25 and the pair of tabs 33. An inclined surface is formed on the outer peripheral surface of the free end of the claw 33 to facilitate insertion of the winding core portion.

The feeding roller 40 is provided at a position slightly deviated from the center of the back side of the U-shaped opening 27 formed in the rotating member 25, and as shown in FIG. 4, a shaft 41 axially supported by the rotating member 25. It is loosely fitted between the support plate 42 and the support plate 42 screwed to the tip thereof. The adhesive tape T sent is
The delivery roller 40 is wound and delivered onto the object H to be bound.

The tape guide 50 is composed of a guide roller 52 formed with a loret and another guide roller 51 adjacent to the guide roller 52. Tape support mechanism 30
The adhesive tape T drawn from is wound around the guide roller 51 with the adhesive surface facing outward, and is supplied to the payout roller 40 while being guided in an S shape between the guide roller 51 and the guide roller 52. .

The backward urging mechanism 60 includes a feeding roller 40.
Between the guide roller 52 and the guide roller 52, an idler roller 63 is rotatably supported by a lower idle end of an oscillating arm 61 that oscillates about a fulcrum b. The idler roller 63 is an oscillating arm. A spring 62 hooked on the upper end of 61 is biased rearward (to the right in FIG. 5). Since the adhesive tape T wound around the idle roller 63 is biased backward between the feeding roller 40 and the tape guide 50, the tip of the adhesive tape T is pulled back after cutting, leaving a predetermined amount. In addition, a stopper 64 is provided on the rear side so that the position of the adhesive tape T can be adjusted, and the amount of pullback of the adhesive tape T can be adjusted.

In the stopping mechanism 70, as shown in FIG. 2, a lever 71 having a locking projection 72 at the front end is loosely fitted to the shaft 22a as shown in FIG. 4, and a pin 73 is provided at the rear part. By the spring 74 hooked, the projecting piece 72 is swingably biased so as to act on the cutout portion 76 of the side plate 75 fixed to the rotating member 25. A grip 77 is integrally attached to the rear end of the lever 71. Further, a limit switch 78 is provided below the lever 71 and acts on the pin 73 attached to the lever 71.
By gripping the grip portion 77 of No. 1, the pin 73 is disengaged from the limit switch 78, and the drive source 13 is started.

As shown in FIG. 5, the tape cutting mechanism 80 is constructed by supporting and fixing the cutting edge 82 by a supporting member 81 which is attached to the lower portion of the tip of the opening 27 of the rotating member 25 at an inclination. .

The tape binding device of this embodiment is configured as described above, and the operation of this device will be described below. FIG. 8 is an explanatory diagram showing each step of the tape winding state.

(1) First, in the standby state as shown in FIG. 5 and FIG. 8A, the opening 27 of the rotating member 25 faces forward, and the tip of the adhesive tape T has the adhesive surface upwards. In the state of being housed inside 27, the operator holds the body portion of the drive source 13 of the present device, fits the opening 27 into the bundled objects to be bound H, and attaches the adhesive tape T to the object to be bound H.
Press on.

(2) In this state, the grip portion 7 of the lever 71
By gripping 7 and pushing it up, the protruding piece 72 of the lever 71 is disengaged from the cutout portion 76 of the side plate 75 fixed to the rotating member 25, the drive source 13 is started, and the rotating member 25 is moved to the position shown in FIG. The rotation starts in the direction indicated by the arrow a.

(3) As shown in FIGS. 8 (B) to 8 (E),
The object to be bound H is lightly held so as not to rotate, and the worker moves the device along the object to be bound H, whereby the feeding roller 40 disposed on the rotating member 25 is rotated by the rotation of the rotating member 25. The adhesive tape T is wound in a spiral shape by sliding around the object to be bound H. It should be noted that while the rotating member 25 is being rotated, the adhesive tape T is not covered with the tape shown in FIG.
Since the tension acts in the direction of the arrow b as shown in (B), the object to be bound H is constantly pressed against the inner surface of the opening 27, and the object to be bound H does not protrude from the opening 27.

(4) When the grip portion 77 that has been pushed up is released, the protruding piece 72 of the lever 71 is pressed against the side plate 75 by the urging force of the spring 74, thereby engaging with the notch portion 76 and rotating the rotating member 25. Stop. At the engagement position, the opening 27 of the rotating member 25 is located at the opening 14 of the frame.
Is set to match. The pin 73 acts on the limit switch 78 to stop the drive source 13 almost simultaneously with the engagement between the protrusion 72 and the cutout portion 76. In this embodiment, since the torque motor or the motor with the clutch is used as the drive source 13, even if the stop timing of the drive source 13 is delayed, the drive source 13 idles during that time.

(5) Finally, the object H to be bound, around which the adhesive tape T is wound, is pulled out from the opening 27, and the rotating member 25 is moved.
It cuts with the cutting blade 82 provided in. Then, the tip portion of the remaining adhesive tape T is pulled back by the biasing of the idle roller 63 leaving a predetermined amount behind, and is ready to receive the next object to be bound H, as shown in FIG. 8A. The winding start of the tape T can be performed at a fixed position without protrusion.

The present invention can be modified as follows. (1) In the above-described embodiment, as the feeding roller 40,
A cylindrical roller having a uniform shaft diameter was used. According to the feeding roller 40, when the present apparatus is slid in the longitudinal direction of the object to be bound H and the adhesive tape T is attached in a spiral shape, the adhesive tape T fed from the feeding roller 40 and the adhesive tape T in the apparatus. A distortion is generated between the adhesive tape T and the object to be bound H, and the adhesive tape T attached to the object to be bound H is wrinkled. In order to prevent this, the feeding roller 4 having a truncated cone shape as shown in FIG.
0a may be used. According to the delivery roller 40a, the adhesive tape T is delivered obliquely along the inclined surface of the roller, so that the adhesive tape T is not distorted in front of the delivery roller 40a. Therefore, the adhesive tape T can be wound around the object to be bound H without wrinkles.

(2) In the embodiment, the rotational force of the drive source is transmitted by the meshing of the gears, but the gears may be changed to belts. By driving the belt, the gap between the drive gear 19 and the driven gear 20 can be easily widened, so that the engagement between these gears and the toothless gear 23 can be further stabilized.

(3) In the embodiment, the tape cutting mechanism 80
However, the adhesive tape may be cut using scissors or a cutter that is separate from the device.

(4) In the embodiment, the worker holds the device in his hand and works, but it is also possible to change the device to a stationary type and carry out the operation.

[0035]

As is apparent from the above description, claim 1
According to the invention described in (1), since the feeding roller for feeding the adhesive tape to the object to be bound is provided on the inner side of the opening of the rotating member that is the operation unit for winding the adhesive tape, it is generated as the rotating member rotates. The object to be bound is pulled to the inner side of the opening by the tension of the adhesive tape. As a result, the object to be bound is constantly pressed against the inner back surface of the opening, and the adhesive tape is wrapped around the object, so there is no need for a strong holding force to press the object to be bound into the opening. Adhesive tape can be wrapped without damaging the surface.

According to the second aspect of the present invention, since the feeding roller for feeding the adhesive tape to the object to be bounded has a truncated cone shape, the adhesive tape extends along the peripheral wall surface of the truncated cone in the longitudinal direction of the object to be bounded. Since it is fed while slanting in the direction, the adhesive tape can be wound in a spiral shape without causing wrinkles.

According to the third aspect of the invention, since the retracting biasing mechanism is provided between the feeding roller and the tape supporting mechanism, the tip end of the adhesive tape cut after the winding is finished has a predetermined length. It is pulled back toward the delivery roller. Then, since the next winding of the object to be bound is awaited, it is possible to continuously wind the adhesive tape without the protrusion.

[Brief description of drawings]

FIG. 1 is a front view showing an entire tape binding device according to an embodiment.

FIG. 2 is a partially cutaway front view showing a peripheral mechanism of a rotating member.

3 is a cross-sectional view taken along the line AA in FIG.

FIG. 4 is a sectional view taken along the line BB in FIG.

FIG. 5 is a front view showing a rotating member.

6 is a cross-sectional view taken along the line CC in FIG.

FIG. 7 is a perspective view of a modified example of a feeding roller.

FIG. 8 is an explanatory diagram showing each step of tape winding.

FIG. 9 is an explanatory view showing each step of tape winding of the conventional device.

[Explanation of symbols]

 10 rotation driving means 25 rotating member 30 tape support mechanism 40 feeding roller 50 tape guide 60 backward urging mechanism 70 stopping mechanism 80 tape cutting mechanism T adhesive tape H binding object

Front page continuation (72) Inventor Koji Kanamaru 1-14 Nishisuehiro-cho, Yokkaichi-shi, Mie Sumitomo Wiring Systems, Ltd. In the company

Claims (3)

[Claims] 1. A tape tying device for tying and binding an adhesive tape around an outer periphery of an object to be bound such as a bundle of wires, comprising: a rotation driving means; and a U-shaped opening into which the object to be bound is fitted. A rotating member driven by a driving unit; a tape support mechanism provided on the rotating member for detachably holding an adhesive tape wound in a roll; and a tape supporting mechanism provided on the rotating member, A tape, comprising: a tape guide for guiding the adhesive tape; and a feeding roller provided on the inner side of the opening of the rotating member for feeding the adhesive tape guided by the tape guide to an object to be bound. Binding device. 2. The tape binding device according to claim 1, wherein the feeding roller has a truncated cone shape. 3. The apparatus according to claim 1, further comprising a retracting biasing mechanism that biases the adhesive tape backward in a direction opposite to the tape supply direction, between the feeding roller and the tape supporting mechanism. Tape binding device.