JPS5813464B2 - Winding and feeding machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for winding or unwinding a long flexible body such as a rope or an electric wire using a drum, and particularly for winding a long flexible body in an orderly manner even when there is no sufficient tension. This relates to the technology of removing or unwinding.

In the work of winding or unwinding a long flexible body such as a cable or electric wire using a rotating drum, if an appropriate weight is suspended from the long flexible body as described above, the long flexible body Sufficient tension can be obtained and the work of winding or unwinding can be performed in an orderly manner without loosening at the winding portion of the drum.

However, in a state where no weight is suspended, that is, in a no-load operation, sufficient tension cannot be applied to the elongated flexible body, resulting in irregular winding and unraveling.

Conventionally, during operation in this no-load state, tension was applied to the long flexible body using human power or a control device.

If it is done manually, the winding and unwinding speed cannot be increased.

Furthermore, the above-mentioned control device has the disadvantage that it requires a complex and highly accurate control means and its operation in order to properly maintain the tension.

An object of the present invention is to provide a device capable of orderly winding or unwinding a long flexible body in an unloaded or nearly unloaded state at any time using a simple device and simple operation.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

A long electric wire 1 having appropriate flexibility is wound around a rotatably supported drum 4, as shown in FIGS. 1 and 2.

A gear 3b is integrally attached to the rotating shaft of the drum 4.

A gear 3a integrally added to the output shaft of the motor 2 is meshed with this gear 3b.

Therefore, the rotation of the motor 2 is transmitted to the drum 4 after being decelerated according to the gear ratio of each gear 3a, 3b.

Therefore, the drum 4 can obtain rotational force in both directions for winding or unwinding the electric wire 1 according to the forward and reverse rotation of the motor 2.

A gear 3c meshes with the gear 3b through an anti-gear 3alU, and a gear 3d meshes with the gear 3c.

A gear 3e is integrally attached to the rotating shaft of the gear 3c, and a gear 3f meshes with the gear 3e.

This gear 3d is rotatably supported by a drive roller 5a.
The one-way clutch 6a is attached to the rotating shaft of the clutch 6a, the direction of which is set so as to transmit the rotational force in the direction of the arrow A in FIG.

The gear 3f is attached to the rotating shaft of the drive roller 5a via a one-way clutch 6b that transmits rotational force in the direction of arrow A in FIG.

The gear ratio of the gears 3c and 3d that mesh with each other is set so that the circumferential speed of the drive roller 5a is slightly slower than the wire winding speed of the drum 4.

On the other hand, the gear ratio of the gears 3e and 3f that mesh with each other is set so that the circumferential speed of the drive roller 5a is slightly faster than the wire unwinding speed of the drum 4.

When the drum 4 and the driving roller 5a are connected in this way, the rotational driving force of the motor 2 moves the drum 4 to
When rotated in the direction of the arrow, the rotational driving force of the motor 2 is transmitted through the path of the gears 3at3bp3cy3d and the gears 3a, 3b,
3c, 3e, and 3f, the gear 3d rotates in the direction of arrow A in FIG. 2, and the gear 3f also rotates in the direction of arrow A.

At this time, the one clutch 6a that is worn on the gear 3d is
The directionality is set so that it has a power transmission function only in the direction of the arrow A, and the directionality is set so that the clutch 6b, which is attached to the gear 3f, has a power transmission function only in the direction of the arrow A. The drive roller 5a rotates in the direction of arrow A at a circumferential speed slightly faster than the circumferential speed of the drum 4 due to the rotational driving force of the motor 2 transmitted from the drum 4.

At this time, the gear 3d is merely idling due to the function of the one-way clutch 6a.

When the drum 4 is rotated by the rotational driving force of the motor 2 in the direction of the arrow B in FIG. 2, the gears 3d and 3f rotate in the direction of the arrow A in FIG.

Therefore, the rotational driving force of the motor 2 is transmitted from the gear 3d to the drive roller 5a, and the drive roller 5a can rotate in the direction opposite to the arrow at a speed slightly slower than the circumferential speed of the drum 4.

In this state, the gear 3f is merely idling due to the function of the one-way clutch 6b.

The electric wire 1 emitted from the drum 4 is as shown in Figs. 2 and 3.
It is sandwiched between a driving roller 5a and a driven roller 5b.

Guides 8a and ab protrude from the base frame 8 toward the drive roller 5a side so that the rotation axis of the driven roller 5b is
It is attached to the drive roller 5a side so that it can slide freely.

The rotating shaft of this sliding driven roller 5b is a spring? a,
7b, it is pressed from the base frame 8 side to the drive roller 5a side.

In this way, the electric wire 1 held between the rollers 5a and 5b is applied to the driving roller 5a with a pressing force determined by the spring force, and a frictional force is obtained between the driving roller 5a and the electric wire 1. The rotational force of the drive roller 5a is easily converted into the feeding force of the electric wire 1.

When winding the electric wire 1 around the drum 4 with the above configuration, the drum 4 is rotated by the motor 2 in the opposite direction of the arrow B.

In this case, the rotational driving force of the motor 2 is
3c and 3d, the drive roller 5a is simultaneously rotated in the opposite direction of the arrow A at a peripheral speed slightly slower than that of the drum 4.

Therefore, the electric wire 1 existing between the drive port 5a and the drum 4 is pulled by a force corresponding to the difference in circumferential speed between the drum 4 and the drive port 5a.

Therefore, the electric wire 1 is wound around the surface of the drum 4 without loosening, and does not appear irregularly wound.

Next, when unwinding the electric wire 1 from the drum 4, the motor 2 is reversed to rotate the drum 4 in the direction of arrow B.

In this way, the rotational driving force of the motor 2 is transmitted to each gear 3a.
, 3b, 3c, 3e, 3f to drive the drive roller 5a to A.
It rotates in the direction of the arrow at a peripheral speed slightly faster than the peripheral speed of the drum 4.

In this way, the electric wire 1 existing between the drum 4 and the drive roller 5a is pulled toward the drive roller 5a by a force corresponding to the difference in circumferential speed between the drum 4 and the drive roller 5a.

Therefore, the electric wire 1 is let out from the circumferential surface of the drum 4 without loosening, and does not become unraveled.

In either case of the above-mentioned winding or unwinding operation, if the circumferential speed of the drum 4 changes, the circumferential speed of the drive roller 5a also changes according to the change via the gear, so that the drum 4 is always
Tension is applied to the electric wire 1 existing between the drive roller 5a and the electric wire 1 to prevent it from being randomly wound or unraveled.

In the case of this embodiment, a spring is used so that the rotational force of the drive roller 5a is efficiently transmitted to the electric wire 1. The electric wire 1 is pressed against the driving roller 5a via the driven roller 5b by the spring forces of a and 7b.

Therefore, sufficient tension can be applied to the electric wire 1 without increasing the difference in circumferential speed between the drum 4 and the drive roller 5a.

As described above, according to the winding and unwinding machine of the present invention, by simply switching between the winding work and the unwinding work, the corresponding operation is automatically changed according to changes in the work conditions, and the tension is constantly applied to the workpiece. Since the machine is equipped with a device that can provide tension and has no unstable elements that cause fluctuations in the amount of tension applied, winding and unwinding operations can be performed easily and always in an orderly manner under no-load or similar conditions. present.

[Brief explanation of drawings]

FIG. 1 is a plan view of a reeling and feeding machine according to the present invention, FIG. 2 is a view taken along the line X--X in FIG. 1, and FIG. 3 is a view taken along the line 2-2 in FIG. 2. 1... River electric wire, 2... Motor, 3a, 3bp3cp3d,
3e, 3f...gear, 4...drum, 5a...driving roller, 5b...driven roller, 5a, 6b...one clutch, 7a, 7b...spring, 8...foundation frame, 8a, 8
b...Guide.

Claims (1)

[Scope of Claims] 1. A device for winding up or unwinding a long flexible body using a rotating drum, in which the long flexible body is applied to the circumferential surface of a rotatable drive rotating body, and the long flexible body is A one-way clutch is attached to the drive rotor, and the one-way clutch is set to have a direction of transmitting the rotation that moves the flexible body away from the drum to the drive rotor, and the one-way clutch and the drum are connected by a first speed reducer. Another one-way clutch is attached to the drive rotor, and the other one-way clutch is set to have a directionality that transmits the rotation that sends the elongated flexible body toward the drum side to the drive rotor, and the other one-way clutch and the drum are connected to each other. are connected by a second reduction gear, and the reduction ratio of the first reduction gear is set such that the circumferential speed of the drive rotating body is greater than the unwinding speed of the elongated flexible body by the drum, A winding and feeding machine characterized in that the reduction ratio of the second speed reducer is set so that the circumferential speed of the driving rotary body is smaller than the winding speed of the elongated flexible body by the drum. 2. The means for applying the long flexible body to the surface of the driving rotary body is to press the long flexible body by the driving rotary body and a driven rotary body rotatably supported separately from the driving rotary body. The take-up and pay-out machine according to claim 1, characterized in that the take-up and pay-out machine is realized by clamping. 3. Claims characterized in that the driven rotating body is attached to a base supporting the driven rotating body so as to be movable toward the driving rotating body, and the movable driven rotating body is elastically supported from the base side. The take-up and pay-out machine according to item 2.