JP2001291442A - Wire and cable supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an energy saving accumulator for drawing and moving a movable sheave only when required. SOLUTION: This wire and cable supply device comprises the accumulator consisting of a fixed sheave 2 and a movable sheave 3 and providing reserving function and tension giving function for a wire to be supplied from the fixed sheave 2 while giving drawing operation with power source to the movable sheave all times, so that the wire and a cable being continuously supplied are wound and machined. A tension giving part 5 consisting of a shock absorbing portion 5b and a dancer member 5a is arranged in proximity to the fixed sheave 2 on a discharge side during incoming operation or on an entrance side during outgoing operation. Drawing operation is given to the movable sheave only when required for reserving function.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wire and cable supply apparatus for stably supplying these electric wires and the like while applying a constant tension for continuous processing in an electric wire and cable production line.

[0002]

2. Description of the Related Art Various accumulators have been employed to supply electric wires and the like continuously and stably while applying a constant tension. It has been known for a long time that moving sheaves such as moving sheaves are arranged between a plurality of fixed sheaves. The tension is always applied, and the supply is performed while performing the wire storing action. For example, as shown in FIG. 2, in a conventional electric wire supply device, a storage unit 1 and a moving sheave 1 of the storage unit 1 are used.
and a pulling portion 2 having a pulling power source for pulling the wire a at all times. A fixed sheave 1b as a guide is fixed in the wire storage portion 1 on the supply side of the electric wire. When the electric wire is transported and supplied, the electric wire enters from the fixed sheave 1b side, is wound around the movable sheave 1a, and exits from the fixed sheave 1b. At the time of supplying the electric wire, the moving sheave 1a is always provided with a traction action, and the tension of the electric wire is maintained. When the supply (incoming line) is stopped or the outgoing line is stopped, the movable sheave 1a is
The arrangement is such that the continuous supply of electric wires is not hindered by approaching the b side or separating from the fixed sheave 1b.

[0003]

However, it is wasteful to always operate the pulley on the moving pulley such as a moving sheave, and a considerable amount of energy is wasted in a 24-hour operation. An object of the present invention is to provide an electric wire and cable supply device provided with an energy-saving type accumulator in which a movable sheave is towed and moved only when necessary without constantly applying a towing action to the movable sheave. Another object of the present invention is to provide an electric wire and cable supply device provided with an accumulator that operates reliably with a simple mechanism.

[0004]

The present invention has the following configuration to achieve the above object. An accumulator device, which is composed of a fixed sheave and a moving sheave, is provided with an electric wire supplied from the fixed sheave side, has a storage function and a tension imparting function, and has a constant traction function provided by a power source to the moving sheave. In an electric wire and cable supply device that performs winding or processing while continuously supplying electric wires and cables, a buffer portion and a dancer member are provided near a fixed sheave at a discharge side at the time of inputting or at an entrance side at the time of outputting. It is a configuration of an electric wire and cable supply device in which a tension applying portion is provided, and a traction function is applied to the moving sheave only when necessary, so that a storage function is operated.

[0005] The above object can be achieved by a structure in which the buffer portion is a buffer cylinder or a structure in which the dancer member can be reciprocated with a constant tension by being pushed or pulled by the buffer cylinder. The wire and cable supply device of the present invention continuously supplies wires and the like, and when processing or winding is performed, with the moving sheave in the accumulator fixed, the tension of the wires and the like is kept constant by the tension applying unit. Is held.

[0006] In the wire and cable supply device of the invention configured as described above, since the tension applying device is disposed at the outgoing line position in the wire storage portion, the wire and the like are continuously supplied for processing the wire and the like. At the time of processing entry when transporting,
Since the tension is always applied, the wires and cables can be stably transported and supplied.

Further, the electric wire and cable supply device of the present invention always applies tension to a conveyed electric wire or the like by a dancer member when the electric wire or the like is continuously supplied for processing the electric wire or the like. It is possible to perform an incoming line operation or an outgoing line operation by giving. Therefore, without keeping the moving sheave in the towed state by the power of the towing portion, the moving sheave is fixed at a near point position close to the fixed sheave or at a far point position separated by a maximum distance from the fixed sheave, and the electric wire is continuously connected. Since it can be transported, the traction power for pulling the moving sheave can be saved.

In the structure of the present invention, since the cushioning member is provided, it is possible to sufficiently cope with fluctuations in the tension of the electric wires and the like during the supply and conveyance of the electric wires and cables as the materials to be conveyed, so that an excessive load is applied. There is no. In particular, since the dancer is pushed or pulled by the buffer cylinder, a constant tension is always provided by keeping the pressure of the cylinder constant. In addition, the configuration is simple because one buffer is used.

In the electric wire and cable supply apparatus of the present invention thus configured, the moving sheave is fixed at the initial position, and thereafter, the electric wire or the like is continuously supplied (input wire) without applying a traction force to the moving sheave, or supplied. Since the outgoing work can be performed, energy for providing traction to the moving sheave can be saved.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an electric wire and cable supply device according to the present invention will be described with reference to the embodiments shown in the drawings. FIG. 1 is a schematic explanatory view showing an embodiment of an electric wire and cable supply device according to the present invention. FIG. 2 is a schematic explanatory view of a conventional electric wire supply device.

Reference numeral 1 denotes a storage section, which comprises a fixed sheave 2 fixed to the incoming line side and a movable sheave 3 movably mounted on a track laid on the floor, and fixed to a fixed portion 3a of the movable sheave 3. It is connected to a power source of the traction unit 4 by a traction line 4a. In this storage section 1, a near point position N of the moving sheave 3 close to the fixed sheave 2 and a far point position T at a position farthest from the fixed sheave 2 are set to the fixed sheave 2, and the moving sheave 3 is located at the far point position T. At one time, electric wires L are stored. Reference numeral 5 denotes a tension applying portion, which includes a dancer 5a and a buffer cylinder 5b, and a rod that supports the dancer 5a is fitted in the buffer cylinder 5b. Reference numeral 6 denotes a conversion guide roller for discharging an electric wire or the like L output from the tension applying section 5.

The operation of the thus constructed electric wire and cable supply apparatus of the present invention will be described. An electric wire L or the like is inserted from the original winding (not shown) onto the fixed sheave 2 of the wire storage unit 1, wound around the movable sheave 3, returned to the fixed sheave 2 side, and output. The electric wire L is wound around the dancer 5a and exits via the conversion guide roller 6.

In the wire and cable supply apparatus according to the present invention, when the wire or the like is continuously supplied for the processing of the wire or the like, the interval between the fixed sheave 2 and the movable sheave 3 is long at the maximum distance. The moving sheave 3 is stopped and stored at the point position T, and the entered electric wire L is conveyed to the dancer 5a of the tension applying section 5 via the fixed sheave 2 and the moving sheave 3, and tension is applied to the electric wire L. In this state, the wire goes out via the conversion guide roller 6. When such an insertion work is stopped, for example, when connecting the next wire L of the original roll, the power source of the pulling unit 4 is operated to move the moving sheave 3 of the storage unit 1.
To the fixed sheave 2 side. At this time, the moving sheave 3 is moved while confirming the position of the dancer 5a. After the completion of the electric wire connection work, the outgoing work of the electric wire L or the like is started, and the moving sheave 3 is returned to the initial distant position T to continue the incoming work.

Also, at the time of outgoing when the wire or the like L is continuously wound after the processing or the like is completed, the distance between the fixed sheave 2 and the movable sheave 3 is set to the shortest distance near point position N. The power source of the traction unit 4 is operated, and the movable sheave 3 is moved and fixed to release the traction force. The electric wire L or the like entered from the fixed sheave 2 passes through the moving sheave 3 and the dancer 5 of the tension applying section 5.
The film is wound up via the conversion guide roller 6 in a state where a certain tension is applied by a. When the outgoing operation by winding the electric wire L or the like is continued and the outgoing operation is stopped to replace the winding roll, the moving sheave 3 is moved away from the fixed sheave 2 by the towing operation of the towing portion 4 to distant point. When the take-up roll is changed to the position T, and the take-up roll is replaced, the take-up can be carried out.
It is returned to the near point N close to the side and fixed, and the winding operation is performed.

In the wire and cable supply device of the present invention, the buffer cylinder is used in the embodiment shown in the drawings, but it is a matter of course that a general buffer spring may be used for this part.

[0016]

According to the electric wire and cable supply device of the present invention, no traction force is constantly applied to the moving sheave in the storage section, so that the power can be closed. Also, since the moving sheave is in a fixed state, noise can be prevented, and
Since the tension is applied by the dancer, it is possible to stably transport and supply electric wires and cables.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view showing an embodiment of an electric wire and cable supply device of the present invention.

FIG. 2 is a schematic explanatory view of a conventional electric wire supply device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Storage part 2 Fixed sheave 3 Moving sheave 4 Pulling part 5 Tension giving part 6 Conversion guide roller L Electric wire etc. N Near point position T Far point position

Claims (3)

[Claims] 1. An accumulator comprising a fixed sheave and a moving sheave, wherein an electric wire is supplied from the fixed sheave side to have a storage function and a tension applying function, and a constant traction action by a power source is applied to the moving sheave. In a wire and cable supply device that winds or processes while continuously supplying wires and cables by arranging the device, a buffer is provided on the discharge side at the time of entry or at the entrance side at the time of output near the fixed sheave. An electric wire and cable supply device, further comprising a tension applying portion including a dancer member, wherein a traction effect is applied to the moving sheave only when necessary, so that a storage function is applied. 2. The electric wire and cable supply device according to claim 1, wherein said buffer section is a buffer cylinder. 3. The wire and cable supply device according to claim 1, wherein the dancer member can reciprocate with a constant tension by a buffer cylinder.