JPH0878128A - Rolling device for adhesive tape - Google Patents

Abstract

PURPOSE: To provide a rolling device for adhesive tape in which an adhesive tape can be quickly and surely rolled by a machine of low cost with a simple structure. CONSTITUTION: This device has a tape holding part 15 for holding a wound adhesive tape 20, a tape driving part 17 for delivering the adhesive tape from the tape holding part, and a tape cutting part 18 for cutting the adhesive tape delivered by the tape driving part in a prescribed length. It also has a tape pressing part 19 having a slit 39 both vertical ends of which are opened and a brush part having a number of elastic bristle bodies 41 planted on the opposed side surfaces of the slit.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for winding an adhesive tape, and more particularly, to a device for winding an adhesive tape, which is suitable for winding an adhesive tape for insulation and protection around a splice portion of a wire harness. It relates to the device.

[0002]

2. Description of the Related Art In a wire harness of an automobile, there is a case where a structure (a splice portion) is formed in which a core wire is exposed by peeling off an insulating coating of electric wires which are connected to each other among wires constituting the wire harness.

When forming such a splice part,
For example, the work shown in FIGS. 6A to 6D is performed. First,
As shown in FIG. 6 (A), the insulation coating 1 of the electric wires 1, 2 and 3
The core wires 1b, 2b, 3b are exposed by peeling a, 2a, 3a. Next, as shown in FIG. 6B, the exposed core wires 1b, 2b, 3b are welded using an ultrasonic welding machine 4 to form a splice portion 5. Further, as shown in FIG. 6C, the splice portion 5 and the exposed core wires 1b, 2
In order to insulate and protect b, 3b and the insulating coatings 1a, 2a, 3a in the vicinity of the exposed core wires 1b, 2b, 3b, an adhesive tape 6 made of polyvinyl chloride (PVC) or the like provided with an adhesive layer is wound, These portions are covered as shown in FIG.

The work of winding the adhesive tape 6 around the splice portion of the wire harness is performed manually by an operator, or by a device for winding an adhesive tape as disclosed in Japanese Utility Model Laid-Open No. 54-38160. There are times when it is necessary.

The winding device disclosed in Japanese Utility Model Laid-Open No. 54-38160 is, as schematically shown in FIG. 7, a cylinder having slits 9 in which brushes 8a and 8b are planted on opposing wall surfaces 7a and 7b. The rotary body 10, the tape feeding unit 11, and the tape cutting unit 12 are provided. When performing a winding operation with this tape winding device, the tape feeding unit 11
Adhesive tape 6 sent to the rotating body 10 by a predetermined length by
Is cut by the tape cutting unit 12, and the operator hands 13
The splice portion 5 gripped by A and 13B is inserted into the slit 9. The insertion of the splice portion 5 into the slit 9 is detected by a limit switch (not shown), and the rotating body 10 rotates a predetermined number of times. By the rotation of the rotating body 10, the brushes 8a and 8b press the adhesive tape 6 against the splice portion 5, and the adhesive tape 6 is wound.

[0006]

However, when manually winding the adhesive tape, the work is troublesome and the working time is long, resulting in poor working efficiency and productivity. on the other hand,
When the adhesive tape winding device is used as described above, the time required for winding the adhesive tape can be shortened. However, this winding device includes the rotating body 10 and the tape feeding unit 1.
1 and the tape cutting section 12 are provided, and in order to operate these mechanisms at desired timing, a complicated gear mechanism and crank mechanism are required.
For this reason, this winding device is expensive, leading to an increase in production cost, and maintenance and repair of the device are troublesome.

The present invention provides an adhesive tape winding device which solves the above problems in the conventional adhesive tape winding operation and has a simple structure and can perform the adhesive tape winding operation quickly and reliably. It was made for the purpose of doing.

[0008]

Therefore, according to a first aspect of the present invention, there is provided a tape holding portion for holding the wound adhesive tape, a tape driving portion for feeding the adhesive tape from the tape holding portion, and a tape driving portion for feeding the adhesive tape. A tape cutting portion for cutting the adhesive tape to a predetermined length, a slit having upper and lower ends opened, and a brush-like portion formed by implanting a large number of elastic bristles on opposite side walls of the slit, Adhesive tape cut to a predetermined length by the tape cutting unit is arranged on the upper end opening side of the slit, and the winding target is passed from the upper opening to the lower opening of the slit to wind the adhesive tape around the winding object. And a device for winding an adhesive tape, the device including:

According to a second aspect, in the first aspect, the slit of the tape pressing portion is narrowed from the upper end side toward the lower end side.

[0010]

In the adhesive tape winding device according to the first aspect of the present invention, when an object to be wound is passed through the slit of the tape pressing portion, the bristles of the brush-like portion planted on the side wall of the slit elastically bends. By pressing the adhesive tape on the object to be wrapped, the adhesive tape is wrapped around the object to be wrapped.

Further, in the present invention, since the slit of the tape pressing portion is narrowed from the upper end side to the lower end side,
The material to be wrapped is surely inserted into the slit.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the embodiments shown in the drawings. As shown in FIGS. 1 and 2, the adhesive tape winding device according to the present invention includes a tape holding portion 15, a tape guiding portion 16, a tape driving portion 17, a tape cutting portion 18, and a tape pressing portion 19.

The adhesive tape 20 comprises an adhesive layer 20b provided on one surface of a sheet material 20a made of PVC or the like, and is wound around a cylindrical core member 21. The tape holding portion 15 includes a fixed shaft 24 that horizontally protrudes from a box body 23 that is arranged in parallel on the base portion 22.
Further, the core member 21 is inserted through and rotatably supported. A box similar to the box 23 is also provided in front of the base 22 in FIG. 1, but is not shown in order to clarify the structure.

The tape guide portion 16 is provided with guide rollers 25A and 25B for sandwiching and guiding the adhesive tape 20 fed from the tape holding portion 15 from the vertical direction in the figure. The guide rollers 25A and 25B are shafts 27A and 27B which horizontally project from the inside of the box body 23.
It is rotatably supported on. Also, this shaft 27
A and 27B are elastically urged downward in the drawing as shown by an arrow A by a spring (not shown) provided in the box body 3, and the adhesive tape pulled out from the tape holding portion 15 is shown. Tension is applied to 20.

The tape drive unit 17 is fixed to drive shafts 28A and 28B protruding in the horizontal direction from the inside of the box body 23, and is provided with drive rollers 30A and 30B for sandwiching the adhesive tape 20 from above and below. The drive shafts 28A and 28B are the first motor 30 arranged in the box body 23.
And the gear mechanism 31. When the first motor 30 operates, this rotational force is transmitted to the drive shafts 28A and 28B via the gear mechanism 31, and the drive roller 3 is driven.
0A and 30B rotate, and the adhesive tape 20 sandwiched between the drive rollers 30A and 30B is sent to the tape cutting section 18 and the tape pressing section 19 side.

The tape cutting section 18 is provided with a pair of cutting blades 32A and 32B arranged above and below the adhesive tape 20 fed from the tape driving section 17. This cutting blade 3
2A and 32B project horizontally from the box body 23, and are connected to a second motor 34 arranged in the box body 23 via a crank mechanism 35. When the second motor 34 is operated, this rotational force is converted into a vertical movement by the crank mechanism 35, and the cutting blade 32 positioned on the upper side in the figure.
While A descends, the cutting blade 32B located on the lower side ascends and sandwiches the adhesive tape 20 from above and below for cutting. Note that one of the cutting blades 32A and 32B may be fixed and the other may be raised or lowered.

The tape pressing portion 19 is provided with a gap 36 penetrating the base portion 22 in the vertical direction. Further, the tape pressing portion 19 includes a pair of pressure brushes 37 and 38 arranged on both sides of the gap 36 on the upper surface 22 a of the base portion 22.

As shown in detail in FIG. 3, the pressure brush 3
Reference numerals 7 and 38 denote side walls 37 facing each other with the gap 36 interposed therebetween.
a and 38a are inclined with respect to the upper surface 22a of the base 22. In the pressure brush 37 on the tape cutting portion 18 side (upstream side), the side walls 38a facing each other across the gap 36 are inclined toward the upstream side. In addition, the tape cutting section 18
In the pressure brush 38 on the opposite side (downstream side) to the above-mentioned gap 3
Side walls 38a that face each other with 6 in between are inclined toward the downstream side. Therefore, the side walls 37a and 38a are wide on the upper side in the drawing and gradually narrow toward the lower side,
When viewed from the side surface, it has a V-shape and has slits 39 having upper and lower ends opened.

Further, a large number of resin capillaries 41 are planted on the side walls 37a and 38a, respectively, and brush-like parts 42 are provided.
Is formed. The length of the bristles 41 is the side wall 3 facing each other.
It is set so that a uniform gap 43 is formed between the tips of the brush-shaped portions 42 of 7a and 38a. That is, in the present embodiment, the length of the bristles 41 planted on the upper ends of the side walls 37a, 38a is set longer, while the length of the bristles 41 planted on the lower ends is set shorter. .

A detection portion 45 for detecting that the splice portion 5 has passed through the slit 39 is provided in the gap 36 provided in the base portion 22. This detector 45
Is equipped with an L-shaped detection plate 46 that is swingably attached to the side surface 22b of the base 22a so as to cross the gap 36. One end of a spring 47 is locked to the detection plate 46. The other end of the spring 47 is locked to the base 22,
The detection plate 46 is elastically biased in the direction of arrow B. Further, the detection plate 46 is locked to a locking portion 48 provided on the side surface 22 b of the base 22 so as to project. Further, a limit switch 49 is arranged near one end of the detection plate 46. The limit switch 49 is normally in the off state, but when the detection plate 46 rotates in the direction indicated by the arrow C and does not cross the gap 36, the end of the detection plate 46 comes into contact with the limit switch 49 to be in the on state. , And sends a predetermined signal to the first timer 51 and the second timer 52 in the box 23. 53 in FIG.
Is a start switch for instructing start and stop of the device.

When the first timer 51 receives a signal from the limit switch 49 or the start switch 53, the first timer 51 measures a first predetermined time, and commands the first motor 30 to drive during the first predetermined time. To output the signal. In addition, the second timer 52 includes the limit switch 49
Alternatively, when a signal from the start switch 53 is received, a second predetermined time is measured, and after the second predetermined time has elapsed, the second
A signal for instructing the motor 34 to drive is output. This second
Is set to a time longer than the first predetermined time, and the first motor 3 that drives the tape drive unit 17 is set.
After the operation of 0, the second motor 34 that operates the tape cutting unit 18 is operated after a predetermined delay time.

Next, the operation of winding the adhesive tape around the splice portion of the wire harness using the apparatus according to this embodiment will be described. The adhesive tape 20 is held by the tape holding portion 15 so that the adhesive layer 20b is located on the upper side in the figure.

When the apparatus is started by turning on the start switch 53, the first motor 30 is activated, and
As shown in (A), the drive roller 3 of the tape drive unit 17
0A, 30B rotate in the direction indicated by the arrow D, pull out the adhesive tape 20 held by the tape holding portion 15, and cut the tape 18 and the tape pressing portion 19 via the guide rollers 25A, 25B of the tape guide portion 16. Send to. Since the first motor 30 operates for the first predetermined time measured by the first timer 51 as described above, the adhesive tape 20 having the predetermined length is transferred from the tape holding portion 15 to the tape cutting portion 18 and the tape pressing portion 19. Sent out.

Next, the second motor 34, which receives the signal from the second timer 52, operates, and the cutting blades 32A and 32B of the tape cutting section 18 move up and down as shown in FIG. 4B. Then, the adhesive tape 20 is cut. Next, FIG.
As shown in FIG. 3C and FIG. 3, the electric wires 1, 2 and 3 provided with the splice portion 5 are crossed over the adhesive tape 20 and then the hand 13
It is gripped with A and 13B, and as shown by arrow E, the splice portion 5 is brought into contact with the adhesive layer 20b of the adhesive tape 20 cut into the predetermined length. Further, as shown in FIG. 4D, the splice portion 5 is attached to the adhesive layer 20 of the adhesive tape 20.
The electric wires 1, 2 and 3 are pushed downward while being in contact with b, and the splice portion 5 is inserted into the slit 39.

As shown in FIG. 4 (E), the splice portion 5 is inserted into the lower side of the slit 39 while bending the bristles 41 of the brush-like portion 42 downward, and this bending occurs. The capillary 41 splices the adhesive tape 20, the exposed cores 1b, 2b, 3b, and the exposed cores 1b, 2
The adhesive tape 20 is pressed against the insulating coatings 1a, 2a and 3a near b and 3b. Further, in the portion other than the vicinity of the splice portion 5, the bent capillaries 41 are bent at the portion of the splice portion 5, so that the adhesive layers 20b of the adhesive tapes 20 facing each other are adhered to each other. for that reason,
As shown in FIGS. 4 (F) and 5, when the splice portion 5 passes through the slit 39, the cut adhesive tape 20 is folded in two at the splice portion 5, and the splice portion 5 and the exposed core wire. 1b, 2b, 3b and insulating coatings 1a, 2 near the exposed core wires 1b, 2b, 3b
A and 3a are adhered to each other in a close contact state, and both ends of the cut adhesive tape 20 are adhered to each other with the adhesive layers 20b facing each other.

When the splice portion 5 passing through the slit 39 is further pulled down and inserted into the gap 36 of the pedestal 22, the electric wires 2 and 3 are detected against the biasing force of the spring 47. The detection plate 46 of the portion 45 is rotated in the direction indicated by arrow C. When the electric wires 2 and 3 pass through the detection unit 45, one end of the detection plate 46 contacts the limit switch 49, and the limit switch 49 is turned on.

The signal output from the limit switch 49 is sent to the first timer 51 and the second timer 52, and the first motor 30 operates for a first predetermined time to cut the adhesive tape 20 of a predetermined length. The tape is supplied to the section 18 and the tape pressing section 19, and after a predetermined delay time, the second motor 34 operates and the tape cutting section 18 cuts the adhesive tape 20. Further, the operator inserts the splice portion 5 into the slit 39 and the gap 3
6 and the adhesive tape 2 near the splice part 4
0 is wound, and the limit switch 49 outputs a signal again. Hereinafter, the above operation is repeated until the start switch 53 is turned off.

As described above, in the adhesive tape winding device of this embodiment, a large number of hair-like bodies 41 are planted on the side walls 37a and 38a of the pressure brushes 37 and 38 facing each other to provide the brush-like portion 42, The adhesive tape 20 is wound around the splice portion 5 by passing the splice portion 5 through the slit 39 formed between the side walls 37a and 38a. The adhesive tape in the conventional device shown in FIG. Since the rotating body 10 is not provided for winding, the structure of the device is simple and inexpensive. Further, in this embodiment, when the splice portion 5 is inserted into the slit 39, the elastically bent capillaries 41 press the adhesive tape 20 against the splice portion 5, so that the adhesive tape can be reliably wound. . Further, in the winding device of the present embodiment, the adhesive tape 20 can be wound only by passing the splice portion 5 through the slit 39 as described above, so that the winding operation of the adhesive tape can be performed quickly and reliably. You can Further, in the present embodiment, since the slit 39 has a narrow width from the upper end side toward the lower end side, it is possible to reliably insert the winding target into the slit.

The present invention is not limited to the above embodiment, and various modifications can be made. For example, in the above embodiment, the adhesive tape winding device is used to insulate the splice part,
The case of winding the protective adhesive tape has been described, but the device according to the present invention is not limited to the splice portion and can be used for winding the adhesive tape in various applications.

Further, in the above embodiment, the operator manually inserts the splice portion 5 into the slit 39 of the tape pressing portion 19, but this work is performed automatically by holding both ends of the wire. It may be configured to be performed by a device that pushes down.

[0031]

As is apparent from the above description, the adhesive tape winding device according to the first aspect of the present invention is provided with the brush-like portion formed by arranging a large number of bristles on the side walls in the slits having the upper and lower ends opened. By passing the material to be wrapped around this slit, the adhesive tape is wound around the material to be wrapped, and since the rotating body is not provided for winding the adhesive tape, the structure of the device is simple, Low cost. Further, when the object to be wound is inserted into the slit, the elastically bent bristles of the brush-like portion press the adhesive tape against the damaged object to be wound, so that the adhesive tape can be reliably wound. Further, as described above, the adhesive tape can be wound only by passing the wound object through the slit, so that the operation of winding the adhesive tape can be performed quickly and reliably.

Further, in the second aspect, since the slit of the tape pressing portion is narrowed from the upper end side to the lower end side,
The material to be wrapped can be reliably inserted into the slit.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an adhesive tape winding device according to an embodiment of the present invention.

FIG. 2 is a schematic view showing a device for winding an adhesive tape according to an example.

FIG. 3 is a partially enlarged view showing a pressing portion of the winding device.

4 (A), (B), (C), (D), (E),
FIG. 6F is a schematic view showing the operation of winding the adhesive tape by the adhesive tape winding device according to the embodiment.

FIG. 5 is a schematic perspective view showing a splice part around which an adhesive tape is wound by the winding device according to the embodiment.

6 (A), (B), (C), and (D) are schematic views for explaining a forming operation of a splice portion.

FIG. 7 is a schematic view showing an example of a conventional adhesive tape winding device.

[Explanation of symbols]

 15 tape holding part 16 tape guide part 17 tape drive part 18 tape cutting part 19 tape pressing part 20 adhesive tape 37, 38 pressure brush 37a, 38a side wall 41 bristles 42 brush-like part 45 detecting part

Claims (2)

[Claims] 1. A tape holding unit for holding a wound adhesive tape, a tape driving unit for feeding the adhesive tape from the tape holding unit, and a tape for cutting the adhesive tape fed by the tape driving unit into a predetermined length. A cutting portion, a slit having both upper and lower ends opened, and a brush-like portion formed by implanting a large number of elastic bristles on opposite side walls of the slit are cut to a predetermined length by the tape cutting portion. The adhesive tape winding device, wherein the adhesive tape is placed on the upper end opening side of the slit, and a tape pressing portion that passes the object to be wound from the upper end opening of the slit to the lower end opening and winds the adhesive tape around the object to be wound. 2. The device for winding an adhesive tape according to claim 1, wherein the slit of the tape pressing portion is narrowed from the upper end side toward the lower end side.