JP2001206643A - Tape winding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tape winding device making a complete tension adjustment. SOLUTION: This tape winding device is provided with a tape winding flyer 3 having a disk shape fixed at one end of a hollow shaft 8 inserted with a core 1, arranged with a notch section 32 on one part of the peripheral edge, and protruded with a winding roll 73 on the other part, a tape pad 21 coaxially held on the tape winding flyer 3 via a slip brake 5, a dancer disk 6 arranged coaxially and rotatably on the tape winding flyer 3 and protruded with a dancer roll 71 on the peripheral edge, a hollow shaft 9 provided in parallel with the hollow shaft 8, including a slip clutch 10 operationally connected to the dancer disk 6 and a drive shaft 11 driving the slip clutch 10 inside it, and driven to rotate the tape winding flyer 3 and the dancer disk 6 in the same direction at the same speed, and a potentiometer 12 provided in the hollow shaft 9, detecting the relative ration angle between the tape winding flyer 3 and the dancer disk 6, and controlling the slip brake 5 and the slip clutch 10 according to the relative rotation angle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a center type tape winding device.

[0002]

2. Description of the Related Art A tape pad is arranged coaxially with a running line of a striated body while running a striated body such as a core to be wrapped with a tape. A tape winding device that winds a tape drawn from a wire around the striatum is called a center-type tape winding device, and various types have been developed.

[0003]

The problem to be solved in the tape winding device is to be able to accurately follow the change in tape tension proportional to the outer diameter of the tape pad, which changes as the winding operation progresses, and to determine in the process of unwinding the tape. The ability to follow sudden tape tension fluctuations that may occur, and thus to be able to keep the tape tension constant, especially at the start and stop of the operation of the tape winding device. An object of the present invention is to provide a novel tape winding device that can achieve such a task.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the invention according to the first aspect of the present invention is fixed to one end of a hollow shaft through which a core is inserted and run. In the shape of a disc, a notch is provided in a part of the peripheral edge, and a tape winding flyer in which a winding roll is protrudingly provided in another part, and the tape winding flyer is coaxial with the tape winding flyer via a slip brake. And a pad mounting cylinder that carries a tape pad, and a dancer roll provided coaxially rotatably with the tape winding flyer, and a dancer roll protruding from a peripheral edge thereof extends from the cutout portion to an outer surface of the tape winding flyer. A dancer disk adapted to protrude, a slip clutch operatively connected to the dancer disk, another hollow shaft provided parallel to the hollow shaft and extending through the hollow shaft; A transmission shaft configured to rotate the tape winding flyer and the dancer disk at the same direction and at the same speed; a transmission device configured to rotationally drive the dancer disk by the drive shaft; A tape winding device having a potentiometer provided on a shaft for detecting a relative rotation angle between the tape winding flyer and the dancer disk and adjusting a set strength of the slip brake.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. Reference numeral 8 denotes a hollow shaft through which the core 1 on which the tape 2 is to be wound passes. At one end of the hollow shaft 8, a disk-shaped tape-wrapped flyer 3 having a boss at the center is fixed.

A notch portion 32 is provided at a peripheral position corresponding to both ends of one diameter of the tape winding flyer 3, and at a position appropriately distant from the notch portion 32 in the circumferential direction,
A guide roll 72 and a wrap roll 73 are provided so as to be rotatable around their own axes, respectively, so as to stand upright on a disk.

A pulley 81 is fixed to the other end of the hollow shaft 8 and is driven to rotate from the outside. A hollow pad mounting cylinder 4 is coaxially mounted on the boss recess 31 of the tape winding flyer 3 via a slip brake 5, and a tape pad 21 is mounted thereon.

A disk-shaped dancer disk 6 is provided coaxially with the tape winding flyer 3 so as to be rotatable in a plane parallel with the tape winding flyer 3 and is driven to rotate by a fixed pulley 61.
A dancer roll 71 is rotatable around its own axis at the periphery of the dancer disk 6, and a balance weight roll 74 stands upright on the disk surface at a symmetrical position 180 degrees apart from the dancer roll 71 to cut the tape wound flyer. It is provided so that a face comes out from the notch 32.

The winding procedure of the tape 2 will now be described with reference to FIG. 2. The tape 2 fed from the tape pad 21 is wound around the dancer roll 71 in a clockwise direction to guide the guide roll 72. After that, it is wound around the core 1 traveling from the winding roll 73 at the center axis position.

[0010] Another hollow shaft 9 extending parallel to the hollow shaft 8 is prepared, and is rotatably driven from a pulley 82 of the hollow shaft 8 via a pulley 91 attached to one end.

A drive shaft 11 extends coaxially inside the hollow shaft 9, and is driven to rotate by a pulley 93 attached to the end of the drive shaft 11 engaging with a pulley 83 of the hollow shaft 8 by a belt. The drive shaft 11 is driven to rotate at a rotation speed somewhat higher than the rotation of the hollow shaft 9. The drive shaft 11 is connected to the pulley 92 via the slip clutch 10 on the way. The pulley 92 drives the pulley 31 to rotate.

Here, the rotation speed of the dancer disk 6 that is driven to rotate from the hollow shaft 8 via the hollow shaft 9 will be described.
When the slip clutch 10 is completely fixed, the pulleys 8 are rotated so that the hollow shaft 8, that is, the tape wound flyer 3 and the dancer disk 6 rotate in the same direction and at the same speed.
A drive ratio of 2, 91, 92, 61 (a gear ratio in the case of a gear) is selected.

The relationship between the rotational drive of the drive shaft 11 and the rotational speed of the drive shaft 11 will now be described.
Through the pulley 92, that is, the rotation speed of the dancer disk 6.

A hollow shaft type potentiometer 12 is provided between the pulley 92 of the hollow shaft 9 and the slip clutch 10. The potentiometer 12 has a function of detecting an angular deviation between the tape winding flyer 3 and the dancer disk 6, that is, the dancer roll 71, and transmitting the signal to the slip clutch 10. Thus, at the same time, it serves to sequentially change the set strength of the slip brake 5.

A slip ring SR1 is fitted into the hollow shaft 8, and the slip brake 5 is energized. A slip ring SR2 is fitted into one end of the hollow shaft 9 to energize the slip clutch 10 and the potentiometer 12.

Next, the operation of the tape winding device of the present invention will be described. First, a tape winding operation is started by applying a brake force of an appropriate initial set value to the slip brake 5. The initial set value corresponds to a torque of a magnitude DT / 2 where D is the outer diameter of the tape pad 21 and T is the required tape tension.

Now, as the tape winding progresses, the outer diameter D
Therefore, in order to keep the tape tension T constant, it is necessary to sequentially adjust the brake torque by the slip brake 5 to decrease. When the balance between the brake torque and the tension is lost, the dancer disk 6
Is detected as a change in the value of the potentiometer 12, the slip brake 5 is adjusted and the slip clutch 10 is adjusted at the same time.

On the other hand, the drive shaft 11 starts rotating at the same time as the tape winding is started, which keeps rotating during the tape winding operation. As can be seen from FIG.
Unless a torque corresponding to the above is applied to the dancer disk 6, the dancer roll 71 is biased and pressed against the edge of the notch 32, and the dancer roll 71 is large enough to maintain a neutral position in the notch 32. A torque is applied to the dancer disk 6. The adjustment of the torque is, of course, performed by adjusting the slip clutch 10.

Since the dancer roll 71 is rotated counterclockwise as the outer diameter of the tape pad 21 decreases, this can be detected by the potentiometer 12 as the relative rotation angle between the tape winding flyer 3 and the dancer disk 6.
As described above, the braking force of the slip brake 5 is adjusted to be gradually reduced based on the detection data.

The fluctuation of the tape tension T during the tape winding operation is caused by the fluctuation of the dancer roll 71, that is, the fluctuation of the tape winding flyer 3.
Is detected by the potentiometer 12 based on the relative angular displacement between the slip clutch 10 and the dancer disk 6, a signal from the potentiometer 12 is also sent to the slip clutch 10, the slip ratio of the slip clutch 10 is changed, and the dancer roll 71 returns to the original state. It will be constantly adjusted to return to the neutral position.

[0021]

According to the present invention, since the detection of the tape tension is performed by a high-sensitivity rotary dancer roll, the tension can be adjusted with high accuracy, and a potentiometer, a slip brake, and a slip clutch for controlling the detection and adjustment are provided. Since the electric current is controlled from the outside by using a slip ring, the tape tension can be controlled with high accuracy.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an embodiment of the present invention.

2 is a front view, and FIG. 1 corresponds to a cross-sectional view taken along line AA in FIG.

[Explanation of symbols]

Reference Signs List 1 core 2 tape 21 tape pad 3 tape winding flyer 31 boss recess 32 notch 4 pad mounting cylinder 5 slip brake 6 dancer disk 61, 81, 82, 83, 91, 92, 93 pulley 71 dancer roll 72 guide roll 73 Winding roll 74 Balance weight 8, 9 Hollow shaft 10 Slip clutch 11 Drive shaft 12 Potentiometer SR1, SR2 Slip ring

Claims (1)

[Claims] 1. A disk-like shape fixed to one end of a hollow shaft (8) through which a core (1) is inserted and run, a notch (32) is provided in a part of a peripheral edge, and another part is provided. Tape flyer (3) with a winding roll (73) protruding around it
And a pad mounting cylinder (4) that is coaxially mounted on the tape-wound flyer (3) via a slip brake (5) and carries a tape pad (21); and a coaxial with the tape-wound flyer (3). Is provided rotatably on the
A dancer disk (6) having a dancer roll (71) projecting from the notch (32) projecting to the outer surface of the tape winding flyer (3); 6) another hollow shaft (9) provided in parallel with said hollow shaft (8) and a drive shaft (11) extending through said hollow shaft (9), comprising a slip clutch (10) operatively connected to said hollow shaft (8). ), Transmission means (82, 91, 92, 61) set to rotate the tape winding flyer (3) and the dancer disk (6) in the same direction and at the same speed, and the drive shaft (11). ), A transmission means (83, 93, 10) for rotating and driving the dancer disk (6), and a tape winding flyer (3) provided on the hollow shaft (9) and the dancer disk (6). Detects relative rotation angle and sets the slip brake (5) Tape winding device and a potentiometer (12) for adjusting the of.