JPH0412970A - Cable member feeding device - Google Patents

Abstract

PURPOSE:To continuously transport a cable member with high efficiency by installing a plurality of guide plates having each arcuate surface curved inside so as to surround the cable member, in free opening and closing, and allowing a flat belt in curved form along the arcuate surface of the guide plate. CONSTITUTION:The top edge of an anchor cable 5 which is pulled out from a cable reel 3 is inserted in a certain degree in an anchor hole 7. The cylinder 14 of a feeding device 1 is contracted, and after the intermediate part of the anchor cable 5 is accommodated into the curved guides 12a-12c, the cylinder 14 is extended until a flat belt 11 is press-attached on the peripheral surface of the anchor cable 5. When the flat belt 11 is applied with revolution in this state, the anchor cable 5 is shifted leftward, being held by the flat belt 11 positioned in the curved guides 12a-12c. Further, if necessary, the frictional force between the anchor cable 5 and the flat belt 11 is adjusted by adjusting the pressing force by the cylinder 14.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a cable material feeding device that continuously transports anchor cables and various cable materials.

<Prior Art> Currently, anchor cable insertion work is performed manually by workers.

<Problems to be Solved by the Invention> The conventional anchor cable insertion method described above is inefficient because it relies on manual labor.

In particular, the longer the insertion length of the anchor cable, the more difficult the insertion work becomes.

<Objective of the present invention> The present invention was made to solve the above-mentioned problems, and its purpose is to provide a cable feeding device that can continuously transfer cable materials with high efficiency. be.

<Means for solving the problem> That is, the present invention has a flat belt rotatably stretched between a pair of rollers whose rotating axes are parallel to each other, and a plurality of belts connected at one end to the back side of the belt. The guide plate is provided so that it can be opened and closed freely.
The guide plate has an inwardly curved arcuate surface so as to surround the cable material, and the flat belt runs in a curved manner along the arcuate surface of the guide plate, which is a cable material feeding device.

<Description of the present invention> The present invention will be described below with reference to the drawings.

<A> Insertion machine FIG. 1 shows an example of an insertion machine incorporating the feeding device 1 of the present invention.

This insertion machine is composed of a base machine 2 having a traveling function, a cable reel 3 mounted on the base machine 2, and a feeding device 1 tiltably supported by a plurality of cylinders 4 at the front of the base machine 2. .

An anchor cable 5 is wound around the cable reel 3, and the tip thereof penetrates through the retaining wall 6 to form an anchor hole 7.
Located within.

The feeding device 1 has a structure to be described later, and the anchor cable 5
Grasp the circumferential surface halfway through and continuously feed in the insertion direction.

The anchor cable 5 is made of a PC steel wire, a bare PC steel wire, or a wire coated with various kinds of flexible sheath materials.

The feeding device 1 can also be used to insert straight PC steel rods without using the cable reel 3.

<Port> Feeding device (FIGS. 2 to 5) The feeding device 1 has a belt conveyor on the top of the pedestal 8.

This belt converter has a pair of rollers 9 disposed in front and rear of the pedestal 8 in a direction perpendicular to the feeding direction of the anchor cable 5.
．． 10 and an endless flat belt 11 stretched between these rollers 9 and 10, and one of the rollers 9 and 10 is used as a driving roller to drive the flat belt 11.

Furthermore, a plurality of curved guides 12a to 12c, which are vertically divided cylinders, are provided on the upper part of the pedestal 8 so as to be openable and closable.

The curved guides 12a to 12c have an inwardly curved arc surface for the purpose of bending the flat belt 11 to the diameter of the anchor cable 5.

The central curved guide 12b is fixed to the pedestal 8, and the lower ends of the curved guides 12a and 12c are connected to both ends of the curved guide 12b with pins.

Telescopic cylinders 14 are attached to pillars 13 erected on both sides of the pedestal 8, allowing vertical rotation.
The free end of each cylinder 14 is connected to the outer peripheral surface of the curved guides 12a, 12c.

Therefore, as shown in FIG. 4, the flat belt 11 curves into a circle only when traveling on the curved surfaces of the curved guides 12a to 12c, and returns to its flat shape and rotates at other locations.

Further, as shown in FIG. 3, the distance between the curved guides 12a and 12c changes as the cylinder 14 expands and contracts.

In this embodiment, a case will be described in which the curved guides 12 are divided into three sets, but two sets may be used.

Further, the opening and closing operations of the curved guides 12a and 12c may be performed using a known opening and closing mechanism such as a screw feed mechanism or a cam mechanism that utilizes spring force.

<Effect> Next, the insertion operation of the anchor cable will be explained.

<A> Holding the anchor cable As shown in FIG. 1, the tip of the anchor cable 5 pulled out from the cable reel 3 is inserted into the anchor hole 7 to some extent.

Then, as shown in FIG. 3, the cylinder 14 is contracted to accommodate the middle part of the anchor cable 5 in the curved guides 12a to 12c, and then the cylinder 14 is extended until the flat belt 11 is crimped onto the circumferential surface of the anchor cable 5. .

<Open> Inserting the anchor cable When the flat belt 11 shown in FIG.
It moves to the left in the drawing while being held by the flat belt 11 located within c.

Further, the pressing force by the cylinder 14 is adjusted as necessary to adjust the frictional force between the anchor cable 5 and the flat belt 11.

<Other Examples> (Figure 6) The flat belt 11 may have a two-layer laminated structure.

In this case, the bond in contact with the anchor cable 5 is attached to the soft layer 11.
The hard layer 11b is formed on the back side of the hard layer 11b.

The soft layer 11a is made of soft rubber, and the hard layer 11b is made of hard rubber or a low-friction material such as a thin steel belt.

This allows the anchor cable to maintain its shape without losing its shape.
In addition to ensuring a large frictional force, the curved guide 12a.
Reduces the frictional resistance against...

In addition, an air chamber 1 is provided inside the curved guide 12a...
5 is formed, and 16 groups of air discharge holes are provided on the inner surface of the curved guides 12a... to blow out compressed air, an air film is formed on the contact surface between the curved guides 12a... and the flat belt 11. Therefore, the frictional resistance on the contact surface can be further reduced.

Furthermore, although the case where the present invention is used for inserting anchor cable materials has been described above, it can also be applied to transporting various other cable materials.

<Effects of the Present Invention> Since the present invention is as described above, the following effects can be obtained.

<B> The cable material can be efficiently and continuously transferred while being gripped by a belt conveyor.

Port: Can be transferred regardless of the total length of the cable material.

<C> By adjusting the pressing force of the curved guide, it is possible to optimally adjust the frictional force between the contact surfaces of the belt and the cable material.

By constructing the surface layer of the belt with a soft material, cable materials that are easily crushed can be transported without losing their shape, and a large frictional force can be ensured.

<E> If the surface layer on the back side of the belt is made of hard material,
Frictional resistance with the curved guide can be reduced.

Further, if compressed air is jetted from inside the curved guide to form an air film, the frictional resistance between the belt and the curved guide can be further reduced.

Figure 5: V-V sectional view of Figure 2 Figure 6: Explanatory diagram of another embodiment

Claims (3)

[Claims] (1) A flat belt is rotatably stretched between a pair of rollers whose rotating axes are parallel to each other, and a plurality of guide plates connected at one end are provided on the back side of the flat belt so as to be openable and closable, and the guide plates are A cable material feeding device, which has an arcuate surface curved inward to surround the cable material, and a flat belt runs in a curved manner along the arcuate surface of the guide plate. (2) The cable material feeding device according to claim (1), wherein the front side of the flat belt is made of a soft material and the back side is made of a hard material. (3) The cable material feeding device according to claim (1), characterized in that an air discharge hole is provided in the arcuate surface of the curved guide, and an air film is formed between the arcuate surface and the belt.