JPH0215986B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a tape winding device for winding tape with low tension around easily damaged objects such as optical fibers and thin multi-core sets.

BACKGROUND TECHNOLOGY When wrapping a core of an optical fiber, thin multi-core assembly, etc. with tape, a certain low tension is required because if it is not wrapped with a low tension, it will be easily damaged when bent. However, on the other hand, it is inefficient unless it rotates at high speed. When the tape rotates at high speed, the wind pressure resistance on the surface of the tape increases. Conventionally, for example, with a low tension of 50g to 200g
It was impossible to perform high speed rotation of 1000rpm.

FIG. 7 shows a conceptual diagram of an example of a conventional winding method, in which the tape 4 fed out from the tape pad 11
0 is guided by guide rolls 81, 91, etc. attached to the rotary disk 10, folded back, and wound onto the core 1 by the rotation indicated by the arrow. If it is folded back in this way, the wind pressure resistance due to rotation will further increase, and the larger the rotation radius, the more serious the effect will be. In the end, until now there was no device that could efficiently wind the core with low tension and high speed. With conventional equipment, 200~300r・at low tension
I was only able to perform low-efficiency work on the order of P.M.

Means for Solving the Problems In the tape winding device of the present invention, in order to reduce the wind pressure applied to the tape during high-speed rotation, the tape is oriented radially in the groove of the rotating disk, and the wide tape surface is installed parallel to the rotating disk,
During rotation, the end face of the tape moves through the air, and only the thickness of the tape receives wind pressure resistance, so the resistance is extremely small, and winding can be performed at high speed even with low tension. Moreover, the tension can be adjusted according to the amount of wrapping.

Embodiment FIG. 1a is a side sectional view of a tape winding device of the present invention, FIG. 1b is a view taken along the arrow A-A, FIGS.
The figure is an explanatory diagram of the tape feeding state, and the tape 40 is fed out from the tape pad 11 attached to the hollow winding pad shaft 3 through which a core such as an optical fiber passes, and the tape 40 is attached to the rotating disk 10. Guide roll 6 (horizontal direction), guide roll 5 (horizontal direction), guide roll 7 (vertical direction), and guide roll 8 (horizontal direction) guide the rotary disk 10 downward in the radial direction through the slit. It is guided by rolls 9 (in the lateral direction) and wound around the core 1. This is shown in the explanatory diagram of FIG. 4, where the tape 40 fed out from the pad 11 passes through the guide rolls 5, 6, 7 (shown at one place in the figure) and the guide rolls 8, 9. However, rolls 8 to 9 are fed radially through slots 41 in rotary disk 10. Also, at this time, the tape is arranged so that its widthwise surface is parallel to the rotary disk 10. Therefore, when the rotary disk 10 rotates as shown by the arrow, the tape 40 receives air resistance on its end face (therefore, only in its thickness direction), and even if the tape 40 rotates at high speed, the wind pressure resistance is small. Therefore, winding can be done with low tension and high speed rotation.

In the figure, 2 is a timing pulley, and 4 is a timing pulley.
is a pad retaining claw, 5', 6', 7', 8' are guide rolls for winding the opposite side of the tape for balance, 11' is a spare tape pad, 12 is a windshield cover, 13 is a spare tape storage tube 14 , 15 is a core guide tube, 16 is a powder clutch, 17, 1
8 is the timing pulley, 19 is the frame, 20
is the timing pulley, 21 is the oil seal, 2
2, 23 are bearings, 24 are oil seals, 25, 2
6 is a bearing 27 is a slip ring for electromotive force, 28 is a balance weight, 29 is a rotating frame, 30 is a main shaft, 3
1 is a stand, 32 is a bearing, and 33 is a proximity switch.

The pad shaft 3 is forcibly driven at the same rotation speed as the rotary disk 10, but the pad shaft 3 rotates faster than the rotary disk by the amount that the tape wraps around the core.

FIG. 5 is an explanatory diagram showing an example of the drive system of the device, in which the driving shaft 50 includes a motor 41 and a pulley 4.
2. Driven by pulley 43. The tooth ratio of the pulleys 42 and 43 is 18:30, the motor is driven at 4000 r.p.m., and the driving shaft 50 is driven at 2400 r.p.m. The main shaft 30 is driven from a driving shaft 50 by a pulley 44 and a pulley 20. The tooth ratio between the pulley 44 and the pulley 20 is 40:48, and the main shaft 30 is driven at 2000 rpm. Next, the winding pad shaft 3 is connected to the pulley 2 and the pulley 18.
The pulley 18 and pulley 17 are connected via a powder clutch 16. The pulley 17 is driven by a pulley 45 of the driving shaft 50. Pulley 45 and pulley 17 have the same number of teeth, and the ratio of the number of teeth between pulley 18 and pulley 2 is
Since it is 35:42, the winding pad shaft is also 2000r・p・
It is forcibly driven by m. As mentioned above, the pad shaft rotates faster than the rotary disk by the amount that the tape is wound around it.

To control the tension of the tape, as shown in FIG. 2, the powder clutch 16 is activated as the number of turns of the tape pad decreases while the tape pad is gradually unrolled from a fully wound state 11a to an empty state 11b.
A constant low tension can be obtained by lowering the current.

To explain further with reference to FIG. 1 and FIG. 6 which shows an enlarged view of the main parts near the tape pad attachment part, the spare tape pads 11', . It is attached to the pad shaft 3 by a pad retaining claw 4. Further, a proximity switch 33 is provided on the rotary disk 10, and a protrusion 35 is provided on the end of the side surface of the pad at a position opposite to the proximity switch 33.
As mentioned above, there is a slight difference in the rotational speed between the rotary disk and the pad shaft, so each time the proximity switch 27 and the protrusion 33 approach, the switch is turned on to control the current to the powder clutch and adjust the amount of tape pad winding. The tension is controlled by decreasing the current as the remaining amount decreases.

Furthermore, FIG. 6 shows the order in which the spare tape pads are stored.
Place the tape pad 11n onto the storage tube as shown by arrows c and c. At that time, the proximity switch 33 gets in the way, so loosen the set screw 34 and close the proximity switch 3.
Pull out 3 in the direction of arrow D. When attaching the tape pad to the wrapping part, the claw 4 is raised to prevent it from coming off.

Effects The low-tension tape winding device of the present invention has the above-mentioned configuration, and can control the tape tension so that the rotation direction of the tape is such that only the end face (that is, only the thickness direction) receives wind pressure resistance. , we have obtained a device that can perform winding at low tension and high speed rotation.

[Brief explanation of drawings]

FIG. 1a is a side sectional view of the device of the present invention, FIG. 1b is a view along the line A-A in FIG. 1a, FIGS. 2 and 3,
Fig. 4 is an explanatory diagram of the tape feeding state, Fig. 5 is an explanatory diagram of the drive system, Fig. 6 is an explanatory diagram showing the main parts enlarged, and Fig. 7 is an explanatory diagram of the tape feeding state of the conventional device. It is an explanatory diagram of a state. Explanation of symbols, 1...core, 3...pad shaft, 4
...Preventing claw, 5-9 ...Guide roll, 10
... Rotating disk, 11 ... Tape pad, 13
... Spare tape storage tube, 14, 15 ... Core guide tube, 16 ... Powder clutch, 2, 1
7, 18, 20...timing pulley, 30...
...Main shaft, 33...Proximity switch, 35...Protrusion,
40...Tape.

Claims (1)

[Claims] 1. In a low-tension tape winding device, a winding pad shaft is rotatably provided on a tube of a spare tape pad storage section, the tape is guided through a rotating disk in the opposite direction of the spare tape pad storage section, and a plurality of The guide roll is mounted parallel to or at an angle of 90 degrees to the rotating disk, and the rotating disk is provided with a slit, within which the tape is guided in the radial direction, and the tape is guided along its wide surface. The tape pads are arranged parallel to the rotating disk, and as a means to adjust the tension according to the amount of tape wrapping, they are installed in the power transmission mechanism that rotates the tape pad and the rotating disk, and a pulse is emitted every time the tape pad rotates. A low tension tape wrapping device comprising a controlled powder clutch.