JPH11116144A - Air cable winding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stably feed or wind a supply cable by performing a pressure control so that speed of the supply cable to be fed or wound by revolving an air motor may be made to follow the traveling of a traveling device. SOLUTION: A self-advancing traveling device 1 travels on a traveling rail 2, suspends parts W and carries parts W. An air motor 3 revolves a rotary shaft 4 and the rotational speed is varied by air pressure. A supply cable 6 supplying driving power source such as electricity and air to be driving force of a cylinder and a vacuum within the traveling device 1 is wound on a cable reel 5 fixed to the rotary shaft 4 of the air motor 3. The supply cable 6 moves on a guide roller 7. Air pressure and the supply are controlled so that a pressure control part controlling supply of air revolving the air motor 3 may follow the moving of the traveling device 1. When the traveling device 1 is stopped, air is not supplied and load is not applied to the cable 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air-driven winding device, and more particularly, to a winding device that is driven by an air motor and winds a cable for supplying an air source or a power source to a production line traveling device or the like. Related to the device.

[0002]

2. Description of the Related Art Heretofore, a spring force has been used as the power for this type of winding device. That is, as shown in FIG. 3, power is supplied from an air source or a power source as a power source through a supply cable along a line to an assembly operation performed on a work attached to a traveling device in a production line. ing. Then, the supply cable is supplied from the winding device while being guided along the traveling device. The take-up device always exerts a force in the direction of winding the supply cable by a spring force. When the traveling device moves and moves away from the take-up device, the supply device supplies the supply cable from the take-up device. The supply cable is wound by the spring force of the take-off device.

[0003]

However, in the conventional method, the spring force always acts on the supply cable,
There is a problem that a load is always applied to the supply cable even when the traveling device is stopped. In addition, since a spring is provided inside and the spring force is constant, if the winding length is increased, conditions such as the winding strength will change due to the mass of the supply cable remaining in the winding device. However, there is a problem that it is impossible to cope with a case where the traveling distance of the traveling device is long. Furthermore, since the force applied to the winding device is a spring force, a constant force is always applied, so that the moving speed of the traveling device cannot be adjusted, and the supply cable becomes slack when the traveling device approaches the winding device. Had a point. In view of these problems, an object of the present invention is to provide a winding device capable of supplying or winding a supply cable following movement of a traveling device.

[0004]

Means for Solving the Problems Therefore, the present invention provides

A pressure control unit capable of receiving air supplied from an air source, adjusting the pressure of the air and transmitting the air, an air motor rotatable by the air supplied from the pressure control unit, and supplying power to a traveling device. A supply cable wound around and attached to an air motor, and a cable reel capable of sending or winding the supply cable by rotation of the air motor. The pressure control unit sends or winds the supply cable by rotation of the air motor. Pneumatic cable winding device, characterized in that pressure control is performed so that the speed of the cable follows the traveling of the traveling device,

[0006] The above-mentioned problem is solved by providing the above. The operation is as follows. When the traveling device moves, the pressure controller adjusts the pressure of the air so that the supply cable can be supplied from the cable reel in accordance with the moving direction and speed of the traveling device, and sends the air to the air motor. Then, the air motor is rotated by the supplied air to rotate the cable reel, and the supply cable wound around the cable reel is sent out or wound so as to follow the movement of the traveling device.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of the present invention will be described with reference to FIG. 1 which is a front explanatory view of the embodiment of the present invention, and FIG.

Reference numeral 1 denotes a traveling device. The traveling device 1 is, for example, a traveling device in an automobile manufacturing line, and is a self-propelled traveling device that suspends an automobile body part W to be worked, travels on a traveling rail 2 and conveys the component W. is there.
Devices such as a cylinder and a vacuum in the traveling device 1 are driven and operated by electricity or air.

3 is an air motor. Air motor 3
Can rotate the rotating shaft 4 by the supplied air,
The rotation speed can be varied by the pressure of the supplied air. Also, when the air is supplied and forced to rotate on the side opposite to the side on which the air is rotated, the load torque generated on the rotating shaft 4 can also be varied by the pressure of the pressure-controlled air.

Reference numeral 5 denotes a cable reel. The cable reel 5 is fixed to the rotating shaft 4 of the air motor 3,
And can rotate with it. And the cable reel 5
A supply cable 6 that supplies a driving power source such as electricity or air that is a driving force for a device such as a cylinder and a vacuum in the traveling device 1 is wound therearound. The supply cable 6
In this embodiment, a pressure-resistant cable hose for supplying air is used. The supply cable 6 wound around the traveling device 1
Moves in a direction away from the cable reel 5, and when the cable reel 5 is rotated, the cable reel 5 is pulled out while being guided by the guide rollers 7. When the traveling device 1 moves in a direction approaching the cable reel 5, the traveling device 1 is wound around the cable reel 5 as the air motor 3 rotates.

Reference numeral 8 denotes an air supply source, which is a power source for supplying compressed air, and includes a rotation of the air motor 3,
Air required for devices such as a cylinder and a vacuum in the traveling device 1 can be supplied.

Reference numeral 9 denotes a pressure control unit. Pressure control unit 9
Consists of an air regulator 10 and an air valve 11, and supplies compressed air supplied from an air supply source 8 to a pipe 1.
The air supplied by the air regulator 2 and suppressed by the air regulator 10 and the air valve 11 can be supplied to the air motor 3 by the pipe 12. And the air regulator 10
Can input the traveling state of the traveling apparatus 1 and adjust the pressure of the supplied air in accordance with the traveling state of the traveling apparatus 1 to suppress the air. When the traveling apparatus 1 approaches the cable reel 5, In response to the approaching speed, the air motor 3 supplies air to the air motor 3 by controlling the pressure so that the winding speed can be wound so as not to loosen the winding of the supply cable 6 already sent out by the air motor 3 to move the traveling device 1. The air pressure can be controlled so that the supply cable 6 is wound up by following the above.
When the traveling device 1 moves in a direction away from the cable reel 5, the cable reel 5 prevents the supply cable 6 from unnecessarily sending out along with the supply cable 6 being sent out. While the load due to the motor torque is generated to the minimum necessary, the air motor 3 freely rotates and suppresses the pressure of the air so that the supply cable 6 can be sent out. Air is supplied to the air motor 3 under pressure control so that the supply cable 6 does not loosen before the supply cable 6 is sent out. By suppressing the air in this way, the pressure can be controlled so that the supply cable 6 is sent out following the movement of the traveling device 1. Further, in a state where the traveling device 1 is stopped, air is not supplied to the air motor 3,
When the traveling device 1 is in a stopped state, control can be performed so that a load due to tension is not applied to the supply cable 6. The air valve 11 is a switching valve that switches between supplying the supplied air to the air motor 3 without suppressing the pressure at the same pressure or supplying the air suppressed via the air regulator 10 to the air motor 3.

In the pneumatic cable winding device thus constructed, a pressure control section 9 for controlling the supply of air for rotating the air motor 3 controls the pressure and supply of air so as to follow the movement of the traveling device 1. Supply to the air motor 3. Since the air motor 3 rotates by generating a rotational torque according to the state of the supplied air, the cable reel 5 supplies the supply cable 6 so as to follow the traveling device 1 when the traveling device 1 moves away from or near the cable reel 5 as described above. Supply. Further, since the air motor 3 is stopped when the traveling device 1 is stopped, no excessive load is generated on the supply cable 6 by the winding device.

[0014]

Therefore, according to the present invention, the air to be supplied to the air motor under the control of the pressure control unit is taken up by the winding device 1.
Can be adjusted so as to follow the movement state of the supply cable, so that the supply cable can be supplied without slackening at the time of feeding or winding. When the traveling device is stopped, the pressure of the air supplied to the air motor is controlled.
An excessive load such as a winding force of a spring is not generated on the supply cable, and the supply cable is not damaged. Furthermore, because the power source of the winding is air, the rotating torque generated on the rotating shaft of the air motor can be adjusted, so that stable feeding or winding is possible, so that the running speed of the running device can be naturally synchronized, Moreover, the supply cable can be lengthened because it is not affected by the mass of the cable reel.

[Brief description of the drawings]

FIG. 1 is an explanatory front view of an embodiment of the present invention;

FIG. 2 is an explanatory view of the same side.

FIG. 3 is an explanatory view of a conventional example.

[Explanation of symbols]

 W Vehicle body parts to be worked 1 Running device 2 Running rail 3 Air motor 4 Rotating shaft 5 Cable reel 6 Supply cable 7 Guide roller 8 Air supply source 9 Pressure control unit 10 Air regulator 11 Air valve 12 Tube

Claims (1)

[Claims] A pressure control unit configured to receive air supplied from an air source, adjust the pressure of the air, and transmit the air; an air motor rotatable by the air supplied from the pressure control unit; The supply cable is wound around the supply cable, and attached to the air motor. The air motor rotates to send or take up the supply cable, and the cable reel can send or take up the supply cable. A pneumatic cable winding device wherein pressure control is performed so that the speed of a supply cable to be taken follows the traveling of a traveling device.