WO2018070212A1

WO2018070212A1 - Tape-winding device

Info

Publication number: WO2018070212A1
Application number: PCT/JP2017/034246
Authority: WO
Inventors: 亮新垣
Original assignee: 住友電装株式会社
Priority date: 2016-10-13
Filing date: 2017-09-22
Publication date: 2018-04-19
Also published as: JP2018062411A

Abstract

The present invention improves the efficiency of tape-winding work. A tape-winding device 100 that comprises a tape supply part 10, a rotary body 20, a rotational drive part 30, a cutting blade 40, and an impelling part 50. A portion of the outer circumference of the rotary body 20 has formed therein a U-shaped recess 24 that is recessed toward the center. The cutting blade 40 has, between itself and an edge part 242 of the recess 24 that is at an outer circumferential surface 22S of the rotary body 20, a blade edge 42 that cuts a tape 90. The blade edge 42 extends in the thickness direction TD1 of the rotary body 20 and is oriented in a direction that is opposite a direction RD1 in which the rotary body 20 is rotated by the rotational drive part 30. The impelling part 50 impels the blade edge 42 toward the outer circumferential surface 22S of the rotary body 20.

Description

Tape winding device

This invention relates to a tape winding device.

Patent Document 1 discloses a tape winding mechanism for winding an adhesive tape around an electric wire. This tape winding mechanism includes a rotating plate formed in a plate shape recessed in a U shape from the outer periphery, and a mechanism for rotating the rotating plate. With the electric wire arranged in the notch of the rotating plate, the tip of the adhesive tape is bonded to the electric wire, and the rotating plate rotates around the electric wire in this state, whereby the adhesive tape is wound around the electric wire.

In addition, it is described that after an electric wire is wound on an adhesive tape, the operator cuts the tape, or is automatically cut by a cutter and a cutter driving unit incorporated in the loop winding mechanism. Yes.

JP 2016-063707 A

However, in the case of the conventional tape winding apparatus, the tape is cut after the winding of the tape is completed as described above. For this reason, when winding a comparatively short tape around a wire, there existed a possibility that work efficiency might fall.

Therefore, an object of the present invention is to provide a technique for improving the efficiency of tape winding work.

In order to solve the above-described problem, a first aspect is a tape winding apparatus that winds a tape around a wire, and supplies a tape in which one of the main surfaces on both sides is an adhesive surface and the other is a non-adhesive surface. A tape supply unit, a rotating body formed with a U-shaped recess recessed toward the center in a part of the outer periphery, a rotation driving unit that rotates the rotating body, and the recesses on the outer peripheral surface of the rotating body. It has a cutting edge for cutting the tape between the edge, the cutting edge extends in the thickness direction of the rotating body, and the rotation direction of the rotating body by the rotation driving unit A cutting blade oriented in the opposite direction.

Moreover, a 2nd aspect is a tape winding apparatus of a 1st aspect, Comprising: The said blade edge | tip of the said cutting blade is extended in the direction which inclines with respect to the said edge part, When the said rotary body rotates, The cutting edge is rubbed against the edge of the recess.

The third aspect is the tape winding apparatus according to the second aspect, wherein the cutting edge of the cutting blade is formed in a curved shape.

Further, the fourth aspect is the tape winding device according to any one of the first aspect to the third aspect, and an urging portion that urges the cutting edge of the cutting blade toward the outer peripheral surface of the rotating body. Is further provided.

Moreover, a 5th aspect is a tape winding apparatus in any one of a 1st aspect to a 4th aspect, Comprising: The said cutting blade is the curve formed in the shape corresponding to the external shape of the said outer peripheral surface of the said rotary body. The curved surface is in contact with the outer peripheral surface across the concave portion of the rotating body.

According to the tape winding apparatus of the first aspect, by rotating the rotating body in a state where the wire having the adhesive surface of the tape bonded to the outer periphery is inserted into the recessed portion of the rotating body, Among them, a part of the tape supported on the edge opposite to the rotation direction is applied to the cutting blade as the rotating body rotates. Thereby, the tape adhering to the wire can be partially cut. Further, when the rotating body further rotates, the cut tape can be wound around the wire.

According to the tape winding apparatus of the second aspect, the shearing force can be concentrated and acted at these intersections by rubbing the edge inclined with respect to the edge against the edge. As a result, the tape can be suitably cut.

According to the tape winding apparatus of the third aspect, since the one end portion of the blade edge can be applied at an angle to the tape, cutting of the tape can be suitably started.

According to the tape winding apparatus of the fourth aspect, the blade edge can be firmly applied to the tape by urging the blade edge against the outer peripheral surface of the rotating body, so that the tape can be cut well.

According to the tape winding apparatus of the fifth aspect, the cutting blade can be disposed at a stable position with respect to the rotating body by the sliding surface of the cutting blade being in sliding contact with the outer peripheral surface of the rotating body.

It is a schematic structure figure showing tape winding device 100 of an embodiment. It is a schematic front view which shows the rotary body 20 and the cutting blade 40 of embodiment. It is a schematic back view which shows the cutting blade 40 of embodiment. It is a schematic side view which shows the rotary body 20 and the cutting blade 40 which perform tape winding operation | movement. It is a schematic front view which shows the rotary body 20a and the cutting blade 40a of a modification. It is a schematic block diagram which shows the tape winding apparatus 100a of the other modification.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In addition, the component described in this embodiment is an illustration to the last, and is not a thing of the meaning which limits the scope of the present invention only to them. In the drawings, the size and number of each part may be exaggerated or simplified as necessary for easy understanding.

<1. First Embodiment>
Drawing 1 is a schematic structure figure showing tape winding device 100 of an embodiment. FIG. 2 is a schematic front view showing the rotating body 20 and the cutting blade 40 of the embodiment. FIG. 3 is a schematic rear view showing the cutting blade 40 of the embodiment.

The tape winding apparatus 100 includes a tape supply unit 10, a rotating body 20, a rotation driving unit 30, and a cutting blade 40. The tape winding apparatus 100 is configured to wind the tape 90 around the wire 80 by the rotational drive of the rotary body 20 and to cut the tape 90 by the cutting blade 40 by the rotational drive of the rotary body 20. As the wire 80, a plurality of electric wires may be assumed, but other wire members may be used. The tape 90 is an adhesive tape in which one main surface is an adhesive surface 92 having adhesiveness, and the other main surface is a non-adhesive surface 94 having no adhesiveness.

The tape supply unit 10 includes a tape winding body support unit 12 and a relay unit 14. The tape winding body support unit 12 rotatably supports a tape winding body 900 formed by winding a belt-like tape 90. The tape winding body support portion 12 is inserted through the hollow portion at the center of the tape winding body 900, and when the tape 90 is pulled out from the tape winding body 900, the tape winding body 900 tape is It rotates so as to rotate around the body support portion 12.

The relay portion 14 is formed in a rotatable cylindrical shape, and supports an intermediate portion of the tape 90 drawn from the tape winding body 900 to the vicinity of the rotating body 20. The relay unit 14 abuts on a non-adhesive surface 94 opposite to the adhesive surface 92 of the tape 90.

The rotating body 20 is a disk-shaped member having a predetermined thickness, and has a shape in which a concave portion 24 that is recessed in a U shape toward the center is formed in a part of the outer periphery thereof. Note that the “U-shape” is not limited to a shape that smoothly curves from the side to the bottom of the recess 24 as shown in FIG. 1. For example, a shape that bends to form a corner. Including.

As shown in FIG. 2, a pair of

edge portions

240 and 242 forming the entrance portion of the recess 24 are formed on the outer peripheral surface 22 </ b> S of the rotating body 20. As shown in FIG. 1, the edge 240 on the rotation direction RD1 side of the pair of

edges

240 and 242 is a smoothly curved portion, and is an edge on the opposite side of the rotation direction RD1 (the front side in the rotation direction RD1). The part 242 is a part that bends to form a sharp corner. In this example, the

edges

240 and 242 extend in parallel to the thickness direction TD1.

The rotation drive unit 30 is a drive unit that rotates the rotating body 20. The rotation drive unit 30 includes a plurality of (here, three) roller members 32 arranged along the outer periphery of the rotating body 20 and a power source (not shown) such as a motor that rotates the roller members 32 in synchronization. I have. The plurality of roller members 32 are arranged so as to abut on the outer peripheral surface 22S of the rotating body 20, and each roller member 32 rotates, whereby the rotating body 20 rotates in a certain rotational direction RD1 (in FIG. Rotate around). The center position of the plurality of roller members 32 is the rotation center axis Q1 of the rotating body 20. The rotation center axis Q1 is parallel to the thickness direction TD1, and is parallel to the direction in which the

edges

240 and 242 extend. Note that only a part of the plurality of roller members 32 may be connected to a motor, and the remainder may be a free roller that rotates passively.

The cutting blade 40 is a member that cuts the tape 90 together with the rotating body 20. The cutting blade 40 has a cutting edge 42 that cuts the tape 90 between the cutting edge 40 and the edge 240 that forms the concave portion 24 in the rotating body 20 at the tip.

2, the cutting edge 42 extends in the thickness direction TD1 of the rotating body 20. The blade edge 42 is directed to the opposite side to the rotation direction RD1. The cutting edge 42 of the cutting blade 40 is larger than the width of the tape 90, and the cutting edge 42 cuts the tape 90. Moreover, although the thickness of the rotary body 20 is larger than the width | variety (length of the thickness direction TD1) of the blade edge | tip 42, this is not essential.

The blade edge 42 extends in a direction inclined in the rotation direction RD1 of the rotating body 20 from one end side to the other end side in the thickness direction TD1 of the rotating body 20. In this example, the cutting edge 42 is inclined with respect to the edge 242 because the extending direction of the thickness direction TD1 and the edge 242 is parallel. The cutting edge 42 of this example is further formed in a curved shape from one end side to the other end side in the thickness direction TD1. Here, the blade edge 42 is curved from one end to the other end so that the inclination gradually decreases.

In addition, it is not essential that the entire cutting edge 42 that is the tip of the cutting blade 40 is inclined with respect to the edge 242. For example, only an intermediate portion of the cutting edge 42 may be inclined. Further, it is not essential that the entire cutting edge 42 is formed in a curved shape. Further, it is not essential that the blade edge 42 is inclined with respect to the edge portion 242, and the blade edge 42 may extend in parallel with the edge portion 242.

The urging unit 50 urges the cutting blade 40 toward the outer peripheral surface 22S of the rotating body 20. Here, the urging unit 50 is configured by one or a plurality of elastic members (helix springs) attached in a natural length or in a contracted state than the natural length, and the cutting blade 40 is connected to the outer periphery of the rotating body 20. Press so as to contact the surface 22S. The cutting blade 40 includes a curved surface 44 </ b> S that is curved in an arc shape corresponding to the outer peripheral surface 22 </ b> S of the rotating body 20 on the side facing the rotating body 20. When the cutting blade 40 is urged by the urging portion 50, the curved surface 44S abuts on the outer peripheral surface 22S. Here, the cutting edge 42 is formed at one end in the rotation direction RD1 of the curved surface 44S.

When the cutting blade 40 is urged by the urging portion 50, the curved surface 44S of the cutting blade 40 comes into contact with the outer peripheral surface 22S of the rotating body 20. For this reason, when the rotating body 20 rotates, the curved surface 44S is in sliding contact with the outer peripheral surface 22S of the rotating body 20. Further, the cutting edge 42 provided at the end of the curved surface 44S is rubbed against the edge 242 while the rotating body 20 rotates.

The length L1 (see FIG. 3) along the rotation direction RD1 of the curved surface 44S is larger than the distance L2 (see FIG. 2) between the pair of

edges

240, 242 of the recess 24. For this reason, the curved surface 44S of the cutting blade 40 can contact the outer peripheral surface 22S of the rotating body 20 across the edges 240 and 242 (see FIG. 4).

In addition, it is not essential to provide the urging unit 50. For example, instead of providing the urging portion 50, the cutting blade 40 may be fixed at a fixed position with respect to the rotation center axis Q1 of the rotating body 20 by a fixing means (not shown).

<Description of operation>
Next, the operation of the tape winding apparatus 100 will be described with reference to FIG. FIG. 4 is a schematic side view showing the rotating body 20 and the cutting blade 40 that perform the tape winding operation.

First, a part of the outer periphery of the wire 80 held by an operator's hand or a holding device (for example, a robot hand) is attached to the adhesive surface 92 of the tape 90 (attachment step S1). Since the adhesive surface 92 of the tape 90 faces the side opposite to the rotating body 20 side, the wire 80 may be brought close to a part of the tape 90 extending from the relay portion 14 from the outside to be adhered to the adhesive surface 92. .

After the pasting step S1, the wire 80 to which a part of the tape 90 is pasted is inserted into the back of the recess 24 of the rotating body 20 (wire rod inserting step S2). At this time, the wire 80 may be brought into contact with the inner surface such as the innermost part of the recess 24.

After the wire rod insertion step S2, the rotating body 20 rotates to cut the tape 90 (cutting step S3). Specifically, when the rotating body 20 starts to rotate by receiving the driving force from the rotation driving unit 30, the intermediate portion of the tape 90 is pushed by the edge 242 and approaches the cutting edge 42 of the cutting blade 40. When the rotation of the rotating body 20 proceeds, the portion on one end side of the blade edge 42 comes into contact with the intermediate portion of the tape 90 pushed by the edge portion 242 and the one end side portion of the tape 90 is cut. Further, when the rotation of the rotating body 20 proceeds, the blade 90 abuts from one end side to the other end side of the blade edge 42 to cut the tape 90. In addition, when the rotary body 20 rotates, the edge 242 presses the tape 90, so that a force for moving the tape 90 away from the rotary body 20 is applied to the blade edge 42. However, when the cutting blade 40 receives the urging force from the urging portion 50, the retreat can be avoided. For this reason, the tape 90 can be cut | disconnected suitably.

When the tape 90 is cut, the cutting edge 42 of the cutting blade 40 receives the urging force of the urging portion 50 and is rubbed against the edge 242 of the recess 24 while being in close contact. For this reason, a shearing force for cutting the tape 90 is generated at a point where the cutting edge 42 of the cutting blade 40 and the edge 242 of the recess 24 intersect. The tape 90 can be suitably cut by this shearing force. Particularly, since the cutting edge 42 is formed in a curved shape, the cutting edge 42 can be applied to the tape 90 at a more angle. For this reason, the tape 90 can be cut | disconnected suitably.

When manufacturing a wire harness for a vehicle, etc., a tape that generally has a strong adhesive force and is difficult to cut is often used. By adopting a configuration in which the tape is scraped off like the tape winding apparatus 100, the tape can be suitably cut.

Here, the rotation control of the rotating body 20 (that is, the operation control of the rotation driving unit 30) can be performed by a switch operation, a sensor mechanism, or a mechanical mechanism. For example, when performing rotation control of the rotary body 20 by switch operation, it is good to provide one or more switches and operate the rotation drive part 30 according to operation of the one or more switches. When the rotation of the rotating body 20 is controlled by the sensor mechanism, the sensor (contact sensor or non-contact sensor) detects that the wire 80 has been inserted into the inner surface (preferably the innermost part) of the recess 24, and is rotated. The unit 30 may be operated. When the rotation control of the rotating body 20 is performed by a mechanical mechanism, a pinion gear mechanism may be used. That is, the force for pushing the wire 80 into the back of the recess 24 may be converted into the rotational force of the rotating body 20 by the pinion gear mechanism. At this time, it may be possible to automatically return the rotator 20 to the original position by providing a spring or the like that urges the rotator 20 in a direction opposite to the pushing force.

The length of the cut tape 90 is determined by the amount by which the tape 90 is drawn when the wire 80 to which a part of the tape 90 is attached is inserted into the back of the recess 24. In other words, it is determined by the depth of the recess 24 and the position of the recess 24 (angle around the rotation center axis Q1) when the wire 80 is inserted into the recess 24.

In the cutting step S3, the tape 90 is wound when the rotating body 20 starts to rotate (winding step S4). The tape 90 is wound around the wire 80 by pressing the tape 90 against the inner surface of the recess 24 (the inner surface opposite to the rotation direction RD1) in a state where the wire 80 is applied to the inner surface of the recess 24. The rotating body 20 may be rotated by a predetermined number of times and stopped. After the winding step S4, the wire 80 is taken out from the recess 24.

As described above, according to the tape winding apparatus 100 of the present embodiment, by rotating the rotating body 20, the tape 90 is cut to a required length, and winding of the cut tape 90 is performed in parallel. Can be executed. For this reason, the winding operation | work of the tape 90 around the wire 80 can be performed efficiently.

Particularly, the cutting edge 42 is inclined with respect to the edge 242 on the opposite side of the rotation direction RD1 among the

edges

240 and 242 on both sides facing the rotation direction RD1. For this reason, the cutting edge 42 is brought into close contact with the edge 242 and rubbed together, whereby a shearing force can be generated intensively at these intersections. Thereby, the tape 90 can be cut | disconnected suitably.

<2. Modification>
Although the embodiment has been described above, the present invention is not limited to the above-described embodiment, and various modifications can be made.

FIG. 5 is a schematic front view showing a modified rotating body 20a and a cutting blade 40a. As for the rotary body 20a of this modification, the edge part 242a on the opposite side to the rotation direction RD1 is inclined with respect to the thickness direction TD1. In the example shown in the figure, a concave portion 24a having a curved edge 242a is formed. Further, the blade edge 42a extends linearly in parallel to the thickness direction TD1 of the rotating body 20. Even in such a rotating body 20a and the cutting blade 40a, the cutting edge 42a is inclined with respect to the edge 242a. For this reason, since the cutting edge 42a is rubbed against the edge portion 242a, a shearing force can be generated intensively at the intersecting points, so that the tape 90 can be suitably cut.

FIG. 6 is a schematic configuration diagram showing a tape winding apparatus 100a of another modified example. In the tape winding device 100a shown in FIG. 6, the position of the relay portion 14a is arranged on the front side of the blade 42 with respect to the rotating body 20. For this reason, when the cutting edge 42 of the cutting blade 40 cuts the tape 90, the cutting edge 42 is angled with respect to the tape 90 by the tape 90 being supported by the relay portion 14 a and the edge portion 242. You can guess. Therefore, the tape 90 can be cut well.

Although the present invention has been described in detail, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention. The configurations described in the above embodiments and modifications can be appropriately combined or omitted as long as they do not contradict each other.

DESCRIPTION OF SYMBOLS 10

Tape supply part

20, 20a Rotating body 22S Outer

peripheral surface

24, 24a Concave part 30 Rotation drive

part

40,

40a Cutting blade

42, 42a Cutting edge 44S Curved surface 50 Energizing part 80 Wire 90 Tape 92 Adhesive surface 900

Tape winding body

100, 100a

Tape winding device

242 and 242a (on the opposite side of the rotation direction) Q1 rotation center axis RD1 rotation direction

Claims

A tape winding device for winding a tape around a wire,
A tape supply unit that supplies a tape in which one of the main surfaces on both sides is an adhesive surface and the other is a non-adhesive surface;
A rotating body in which a concave portion recessed in a U shape toward the center is formed in a part of the outer periphery;
A rotation drive unit for rotating the rotating body;
The blade has a cutting edge for cutting the tape between the outer peripheral surface of the rotating body and the edge of the recess, the cutting edge extends in the thickness direction of the rotating body, and the rotation drive A cutting blade oriented in a direction opposite to the direction of rotation of the rotating body by the part,
A tape winding device.
It is a tape winding apparatus of Claim 1, Comprising:
The tape winding device, wherein the cutting edge of the cutting blade extends in a direction inclined with respect to the edge portion, and the cutting edge is rubbed against the edge portion of the recess when the rotating body rotates.
The tape winding device according to claim 2,
The tape winding apparatus, wherein the cutting edge of the cutting blade is formed in a curved shape.
It is a tape winding apparatus of any one of Claims 1-3,
A biasing portion that biases the cutting edge of the cutting blade toward the outer peripheral surface of the rotating body;
A tape winding apparatus further comprising:
It is a tape winding apparatus of any one of Claims 1-4, Comprising:
The cutting blade is in contact with the outer peripheral surface via a curved surface formed in a shape corresponding to the outer shape of the outer peripheral surface of the rotating body,
The tape winding device, wherein the curved surface can contact the outer peripheral surface across the concave portion of the rotating body.