JP2000354354A - Winding device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] Without reducing productivity and winding quality,
The tension of the winding member T is made constant. SOLUTION: A tension detecting roller 15 is brought into contact with a winding member T and bent into a hairpin shape. As a result, the tension detection roller 15 is displaced in parallel with the linear portion of the hairpin. Then, this displacement is applied to the first cam 35 and the second cam 36.
And transmitted to the brake shoe 34. Thus, a change in the tension of the winding member T is detected with high accuracy, and the change in the tension is automatically kept constant.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding device used for winding an insulating tape around a coil.

[0002]

2. Description of the Related Art Conventionally, when an insulating tape is wound around a coil of a rotating machine, a winding device is used. At this time, it is necessary to apply a constant tension to the tape so as to prevent the tape from being displaced or the like, and the tape is wound.

For example, in the configuration shown in FIGS. 5 and 6, a tension is applied to the tape T by pressing a friction plate 102 or the like against the tape reel 101 and controlling the rotation of the tape reel 101.

In this configuration, a tape reel 101 is rotatably provided on a side surface of a rotating ring 103 attached to a frame of a winding device (not shown).
1 to the tape T are the roller 104 and the guide roller 105
, And supplied to the coil C.

At the center of the tape reel 101, there is provided a spring 106 for urging the friction plate 102 which slides on the side surface of the tape reel 101, and the friction force can be adjusted by adjusting the screw 107. It has become.

Accordingly, by rotating the rotating ring 103 with respect to the coil C, the tape T is supplied from the tape reel 101 and wound around the coil C. At this time, the rotation of the tape reel 101 is controlled by the friction plate 102. Since it is regulated, a tension is applied to the tape T.

Japanese Patent Laid-Open Publication No. Hei 5-301684 discloses a winding device having a structure as shown in FIG.

The winding device includes a tape reel 112 to which a brake drum 111 is fixed, a gear 113 fixed to one end and supported rotatably, and a tape T wound around the tape reel 112 at the other end. A winding diameter detector 114 that contacts and detects the winding diameter of the tape T, a gear 115 is provided at one end, the gear 115 meshes with a gear 113 provided at the winding diameter detector 114, and the other end is a spring. A pressing lever 118 and the like for pressing the brake shoe 117 via 116 are provided.

The amount of compression of the spring 116 is adjusted so that a constant tension is applied to the tape T at the start of winding. When the winding proceeds and the remaining amount of the tape T changes, the winding diameter detector 114 tilts accordingly. The amount changes.

Since the pressing lever 118 is engaged with the winding diameter detector 114 via the gear 113, the winding diameter detector 11
The tilt of 4 causes the tilt of the pressing lever 118 to brake the rotation of the tape reel 112.

Accordingly, the tension applied to the tape T is adjusted depending on the winding diameter of the tape T.

On the other hand, Japanese Patent Application Laid-Open No. 1-127574 discloses a winding device having a structure as shown in FIG.

The winding device has a Y-shaped arm 122 rotatably provided on a tape reel 121. One end of the arm 122 rotates counterclockwise by a tape supplied from the tape reel. The other end is biased by a spring to restrict the rotation of the arm 122.

A brake drum 123 is fixed to the tape reel 121, and a lever piece 124 is rotatably provided.

A brake pad 125 is connected to one end of the lever piece 124, and the brake drum 123 and the brake pad 12
5, the rotational force of the tape reel 121 is adjusted by adjusting the frictional force.

The arm 122 is in contact with the lever piece 124 via a roller 126.

As a result, when the tension applied to the tape T decreases, the arm 122 urged by the spring 127 rotates clockwise, and the lever piece 124 rotates in accordance with the amount of rotation.
push.

Since the lever piece 124 is connected to the brake pad 125, pressing the lever piece 124 means that the friction between the brake pad 125 and the brake drum 123 increases.
Is applied to the tape T so that a constant tension is applied to the tape T.

[0019]

However, the above configuration has the following problems. That is, in the configuration shown in FIGS. 5 and 6, even if the remaining amount of the tape T decreases and the tension applied to the tape T fluctuates, the tension cannot be automatically adjusted. It is necessary to adjust the frictional force between the friction plate 102 and the tape reel 101 so that the tension becomes high.

The tension applied to the tape T during winding is determined by the kinetic frictional force, but the tension applied at the time of stopping the work and at the start of the work is determined by the static frictional force. When the tape T is interrupted, there is a problem that the winding of the tape T becomes uneven, and the tape T elongates or breaks.

On the other hand, in the configuration shown in FIG. 7 in which the remaining amount of the tape T is detected and the brake amount is changed, the tension of the tape T can be continuously adjusted, but at the start of the winding operation where static friction acts. At the end of the winding operation, there is a problem that a large tension is applied to the tape T to cause the tape T to elongate or break.

Further, since the amount of change in the amount of tape T is transmitted to the brake shoe 117 via the gears 113 and 115, there is a problem that the tension changes due to backlash of the gears 113 and 115 are likely to occur.

In order to reduce the influence of the backlash, it is necessary to make the gear 113 provided on the winding diameter detector 114 smaller than the gear 115 provided on the pressing lever 118. There is a problem that the change in diameter cannot be used for tension control with high accuracy.

Further, in the configuration shown in FIG. 8, since the braking amount is adjusted by the change in the tension applied to the tape T, a large tension is not applied to the tape T at the start and end of the winding. It is difficult to reflect the fluctuation of the tension on the brake amount with high accuracy.

That is, the line connecting the arm-side guide roller 127 and the rotating shaft 128 forms angles α and β with the tape T, and the angles α and β change depending on the remaining amount of the tape T. , The rotational force f of the arm 122 is f = T * (sin β−sin α) when the tension is T,
Is a complicated curve.

The length between the arm-side guide roller 127 and the rotating shaft 128 is
Therefore, the amount of rotation of the arm 122 is reduced and transmitted to the lever piece 124.

Therefore, lever piece 1 against which roller 126 abuts
The contact surface 24 needs to be formed with a small amount of change and a complicated curvature, so that a very advanced processing technique is required, and even with such a curvature, the contact surface can be formed. However, since the movement of the lever piece becomes small, there is a problem that the initial setting of the brake amount becomes very difficult by the brake adjusting mechanism.

Accordingly, an object of the present invention is to provide a winding device that solves the above-mentioned problems without reducing productivity and winding quality.

[0029]

According to a first aspect of the present invention, a reel in which a winding member is wound around a member to be wound revolves around the wound member and rotates to rotate around the member to be wound. In a winding device that winds the winding member around the winding member, a reel is provided on a side surface, and a rotating ring that rotates about the member to be wound is in contact with the rotating member so as to bend the winding member into a hairpin shape. A tension detector that detects the tension by being displaced in parallel with the linear portion of the hairpin by the tension of the winding member, a brake drum provided on the reel, and
A brake provided with a brake shoe that comes into contact with the brake drum and controls the rotation speed of the brake drum with a frictional force at that time; and a displacement transmitter that amplifies a displacement amount of the tension detector and transmits the displacement to the brake shoe. And a change in the tension of the winding member is detected with high accuracy to suppress the change in the tension.

According to a second aspect of the present invention, when the supply of the winding member from the reel is stopped, a feed detector for detecting the stop is provided to prevent idle running of the reel even if the winding member is broken. It is characterized by doing.

[0031]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing a main part of a winding device according to the present invention, and FIG. 2 is a side view thereof.

It is needless to say that the winding device according to the present invention is not only used for winding a tape but may also be used for operations such as winding. Therefore, in the following description, the member to be wound is referred to as a winding member, and the member to be wound is referred to as a member to be wound.

In the winding device according to the present invention, the reel 2 is provided on the side surface, and the rotating ring 11 rotating about the wound member C and the winding member T are brought into contact with each other so as to bend into a hairpin shape. A tension detector 40 that detects the tension by being displaced in parallel with the linear portion of the hairpin by the tension of the winding member T, a brake 41 that is provided on the reel 2 and applies a braking force to the reel 2, and a displacement of the tension detector 40 Amplify the amount and brake 41
, A rotation ring driving unit 43 that rotates the rotation ring 11, a supply detector 44 that detects whether the winding member T is supplied from the reel 2, and a moving speed of the wound member C. And a feed detector 45 for adjusting the overlap of the winding members T by sending the result to the rotary ring drive unit 43.

The tension detector 40 includes first and second direction change rollers 14 and 16 provided adjacent to each other for changing the direction of the winding member T, and the first direction detection roller 14 and the second direction change roller 14. The tension detecting roller 15 is provided at an intermediate position with respect to the conversion roller 16 and is urged by a spring 18 abutting on the winding member T in this area. The tension detecting roller 15 abuts on one end of the spring 18 to regulate the contraction amount of the spring 18. And a tension adjusting screw 27 to be used.

The brake 41 has a brake drum 33 provided coaxially with the reel 2 and a brake pad 34 which comes into contact with the brake drum 33 and regulates the rotation of the brake drum 33 by friction at that time. .

One end of the tension detector 40 is connected to the tension detection roller 15 and swings, and the other end of the first cam 35 is connected to the brake pad 34 and the second cam 36 swings.
The cam 35 and the second cam 36 are connected to each other, and have a link 37 and the like, the length of which can be adjusted by the screw shirt 21.

The rotating ring driving section 43 is configured to rotate the rotating ring 11.
And a motor 23 provided with a gear 24 meshing with the gear 22.

The supply detector 44 includes a support plate 28 provided rotatably, and a spring 2 for urging the support plate 28 in a predetermined direction.
9. The winding member detection roller 13 provided on the support plate 28 and abutting on the winding member T, provided in the biasing direction of the support plate 28 by the spring 29, and provided when the winding member T is absent.
And a switch 30 for switching by contact with the switch.

The feed detector 45 includes a feed detection roller 25 that rotates in contact with the wound member C, a rotation detector 26 that detects the rotation speed of the feed detection roller 25 and adjusts the rotation speed of the motor 23, and the like. have.

In such a configuration, the winding member T wound on the reel 2 includes a winding member detection roller 13, a first direction conversion roller 14, a tension detection roller 15, and a second direction conversion roller 1.
6. It is wound around the member C to be wound via the guide roller 17.

At this time, the winding member T comes into contact with the winding member detecting roller 13 to push down the support plate 28 against the urging force of the spring 29 and to lower the tension detecting roller 15 against the spring 18. Displace.

This makes it possible to determine that the support plate 28 is separated from the switch 30 and the supply of the winding member T is being performed, and that the support plate 28 is
And the signal from the switch 30 changes,
It can be determined that the winding member T is broken or missing.

Then, the tension adjusting screw 27 and the screw shirt 21 are adjusted so that a predetermined tension is applied to the winding member T.

In this state, when the wound member C is fed, the feed detecting roller 25 abutting on the wound member C is moved.
Rotates, and the rotation detector 26 detects the rotation of the feed detection roller 25.

The signal from the rotation detector 26 is
Of the motor 23, the speed of the motor 23 is controlled.
Rotates, the winding member T is supplied from the reel 2 to the wound member C, and the winding member T is wound around the wound member C.

As the winding proceeds, the amount of the winding member T remaining on the reel 2 changes, and the tension applied to the winding member T increases.

However, the tension detecting roller 15 is displaced by the change in the tension, and the amount of displacement is amplified by the first cam 35 and the second cam 36 and transmitted to the brake pad 34. Adjusted.

In some cases, the supply of the winding member T is stopped due to breakage of the winding member T during the winding operation. In such a case, the contact between the winding member detection roller 13 and the winding member T is released, and the support plate 28 urged by the spring 29 comes into contact with the switch 30.

Since the rotary ring 11 is provided with a transmitter 31 for transmitting the state of the switch 30, the driving of the motor 23 is stopped in response to a signal from the transmitter 31, and the rotary ring 11 and the like are stopped. Can be prevented from running idle.

In the above description, the winding member detecting roller 1
3 is provided on the support plate 28 and the support plate 28 is urged by the spring 29, but the present invention is not limited to this.

For example, when the winding member T is broken and the supply is stopped, the tension detecting roller 15 urged by the spring 18 moves in the direction of the member C to be wound.
Since the cam 35 and the like are also largely displaced, the tension detecting roller 15 and the first cam 35 may be brought into contact with the switch 30. FIG. 4 is a diagram illustrating a configuration example in a case where the first cam 35 is configured to contact the switch 30.

It is preferable that the transmitter 31 be a dry battery as the power supply, since it can have a simple configuration, but it is needless to say that the transmitter 31 may be wired.

[0053]

As described above, according to the first aspect of the present invention, the tension detector comes into contact with the winding member so as to bend into a hairpin shape and is displaced by tension, and the displacement is amplified to amplify the displacement. , The change in the tension of the winding member can be detected with high accuracy, and the tension can be adjusted with high accuracy.

According to the second aspect of the present invention, when the supply of the winding member from the reel is stopped, the feed detector for detecting this is provided. It is possible to prevent the reel from running idle.

[Brief description of the drawings]

FIG. 1 is a front view of a main part of a winding device according to the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is an enlarged view showing a configuration of a tension detector.

FIG. 4 is a main part front view of a winding device applied to the description of another embodiment.

FIG. 5 is a front view of a main part of a winding device applied to the description of the conventional technique.

FIG. 6 is a side view of FIG. 5;

FIG. 7 is a front view of a main part of a winding device applied to the description of the conventional technique.

FIG. 8 is a front view of a main part of a winding device applied to the description of the conventional technique.

[Explanation of symbols]

 2 Reel 11 Rotation Ring 13 Winding Member Detection Roller 14 First Direction Conversion Roller 15 Tension Detection Roller 16 Second Direction Conversion Roller 21 Screw Shirt Curl 22, 24 Gear 23 Motor 25 Feed Detection Roller 26 Rotation Detector 27 Tension Adjusting Screw 33 Brake drum 34 Brake pad 35 First cam 36 Second cam 37 Link 40 Tension detector 41 Brake 42 Displacement transmitter 43 Rotating ring drive unit 44 Supply detector 45 Feed detector

Claims (2)

[Claims] 1. A winding device in which a reel in which a winding member is wound and stored around a wound member revolves and rotates to wind the winding member around the wound member. Is provided on the side surface, and a rotating ring that rotates about the wound member, abuts the winding member so as to bend into a hairpin shape, and is parallel to a straight line portion of the hairpin due to the tension of the winding member. A tension detector that detects the tension by being displaced; a brake drum provided on the reel; and a brake shoe that contacts the brake drum and controls the rotation speed of the brake drum with a frictional force at that time. A winding device, comprising: a brake provided; and a displacement transmitter that amplifies a displacement amount of the tension detector and transmits the displacement to the brake shoe. 2. The winding device according to claim 1, further comprising a feed detector that detects when the supply of the winding member from the reel is stopped.