JPH07113442A - Bending device for wire rope terminal processing - Google Patents

Abstract

PURPOSE:To provide a bending device for wire rope terminal processing which can carry out the desired bending work by turning a member engaged with the top end part of a strand through a lever and can easily bend the top end part of a thick strand by 180 deg.. CONSTITUTION:A bending device for wire rope terminal processing is equipped with a lower mold 7 having the first recessed groove 7b and the first cut 7c, upper mold 9 having the second recessed groove 9b and the second cut 9c, and a bending mold 12 having a pressing groove 12b with which the top end part of a strand can be engaged and a lever 11 far from a supporting shaft 13 in comparison with the pressing groove 12b, and when the upper mold 9 and the bending groove 12 are closed for the lower mold 7, a tunnel 14 for insertion and a tunnel 16 for folding-back are formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire rope bending treatment suitable for use in bending the end portion of each strand in a wire rope terminal treatment process such as an elevator.

[0002]

2. Description of the Related Art An elevator wire rope in which a plurality of strands composed of a large number of strands are twisted together is
Predetermined terminal processing is required for Babbitt-type socketing. That is, first insert the end of the wire rope into the small diameter hole of the tapered socket to return the twist, then bend the tip of each strand into a folded shape,
Fill the socket with Babbitt metal. In the end treatment process of the wire rope, the bending of the strands has conventionally been performed by an operator pinching the ends of the strands with pliers and bending the strands 180 degrees.

[0003]

By the way, in recent years, there is a tendency to use a thick and thick rope wire rope as the wire rope of the elevator because of the increase and decrease of the elevator stroke due to the increase in the height of the building. As a result, the number of elevators in which the diameter of each strand constituting the wire rope is larger than that of conventional ones is increasing. However, since such a thick strand also has a large bending resistance, it hinders the work of bending the tip of each strand by using pliers in the terminal treatment process of the wire rope. Is required, and the bending condition of each strand also varies.

The present invention has been made in view of the above problems of the prior art, and an object thereof is to provide a bending work for terminal treatment of a wire rope capable of easily bending the end portion of a thick strand by 180 degrees. is there.

[0005]

In order to achieve the above object, in the bending work according to the present invention, a first concave groove is provided on the receiving surface, and the edge of the receiving surface is substantially parallel to the concave groove. First to extend
A lower die having a notch and a bottom surface are rotatably supported so as to move the bottom surface close to and away from the receiving surface, and an insertion tunnel can be formed by abutting the first groove on the bottom surface. An upper die having a second recessed groove and a second notch capable of forming an open groove by abutting the first notch at an edge portion of the bottom surface, and one side of the upper die with the insertion tunnel. A pressing groove, which is rotatably supported so as to move from a facing position to a position facing the open groove, is provided on the side surface so that a folding tunnel can be formed by abutting the open groove,
And a bending die having a lever provided at a position farther from the rotation fulcrum than the pressing groove, and the lever is held in a state in which the tip of the strand inserted into the insertion tunnel is engaged in the pressing groove. When the bending die is rotated through the tip, the tip portion is guided and pressed by the pressing groove.

[0006]

In the bending work constructed as described above, an insertion tunnel and an opening groove can be formed by abutting the bottom surface of the upper die against the receiving surface of the lower die, and the pressing groove of the bending die is formed into the insertion tunnel. Since it can be placed in a position to face, the end of the strand is inserted into the insertion tunnel and then engaged in the pressing groove, and then the operator holding the lever makes the folding tunnel with the pressing groove and the opening groove. By rotating the bending die to the position where it is formed, the tip of the strand can be bent into a folded shape while being pressed while being guided by the pressing groove and stored in the folding tunnel. Can be surely bent 180 degrees. In this bending work, since the bending-type lever is provided at a position farther from the rotation fulcrum than the pressing groove, even if the force applied to the lever is not so large, the pressing groove strongly presses the tip of the strand. Therefore, it is possible to easily bend a thick strand.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. Here, FIG. 1 is a side view when the upper and lower molds of the bending work according to the embodiment are opened with respect to the lower mold, and FIG. 2 is the upper mold and bending mold of the bending work are closed with respect to the lower mold. FIG. 3 is a plan view showing a state in which the tip of the strand inserted into the insertion tunnel of the bending work is engaged in the pressing groove of the bending die, and FIG. 1
FIG. 5 is a plan view showing a state in which the tip portion of the strand of the book is bent 180 degrees, and FIG. 5 is a sectional view showing a state in which a socket is attached to the end of the wire rope by Babbitt type socketing.

In these drawings, a wire rope indicated by reference numeral 1 is formed by twisting a plurality of strands 2 composed of a large number of strands, and the end of the wire rope 1 is subjected to a predetermined treatment. Is socketed from. That is, the twist of the end of the wire rope 1 in which the tapered socket 3 is inserted is returned, the tip end of each strand 2 is bent into a folded shape, and then the babbitt metal 4 is packed in the socket 3 to make the bavit type socketing. I do.

In order to bend each strand 2 in the terminal treatment process of the wire rope 1, in this embodiment, a bending work generally indicated by reference numeral 5 is used. The bending work 5 includes a lower mold 7 having a first lever 6 protruding therefrom, an upper mold 9 having a second lever 8 protruding therefrom, and a bottom surface 9 of the upper mold 9.
A bending die in which a pin 10 that rotatably connects the first and second levers 6 and 8 and a third lever 11 are provided so as to move a toward and away from the receiving surface 7a of the lower die 7. 12
And a support shaft 13 that rotatably connects the base portion of the bending die 12 and the side portion of the lower die 7. The lower die 7 has a first groove 7b on its receiving surface 7a, and a first groove extending substantially parallel to the groove 7b at the edge of the receiving surface 7a.
Has a notch 7c. Further, the upper die 9 has a second groove 9b on the bottom surface 9a thereof, in which the insertion tunnel 14 can be formed by abutting the first groove 7b, and at the edge of the bottom surface 9a, the second groove 9b is formed. It has a second notch 9c capable of forming the open groove 15 by abutting with the first notch 7c. Furthermore, in the bending die 12, the folding tunnel 16 can be formed by abutting the open groove 15 on one side surface 12a that moves from a position facing the insertion tunnel 14 to a position facing the open groove 15. The pressing groove 12b is provided, and the distance between the third lever 11 and the support shaft 13 is sufficiently larger than the distance between the pressing groove 12b and the support shaft 13.

That is, in this bending work 5, the insertion tunnel 14 and the open groove 15 can be formed by abutting the bottom surface 9a of the upper die 9 against the receiving surface 7a of the lower die 7, and the position where the insertion tunnel 14 is exposed. The pressing groove 1 of the bending die 12 in the open state
2b can be arranged and this bending die 1
When 2 is closed and the pressing groove 12b is abutted with the opening groove 15, the folding tunnel 16 can be formed. Therefore, the tip of the strand 2 is inserted into the tunnel 14 for insertion.
After being inserted into the pressing groove 12b and engaged in the pressing groove 12b, the tip of the strand 2 is rotated by rotating the bending die 12 to a position where the folding groove 16 is formed by the pressing groove 12b and the opening groove 15. Can be stored in the folding tunnel 16 by bending while being pressed while being guided by the pressing groove 12b.

Next, the bending process of the strand 2 using the bending work 5 will be described in detail.

First, the end of the wire rope 1 formed by twisting a plurality of strands 2 together is inserted into the small diameter hole 3a of the tapered socket 3 and the twist is returned. Next, as shown in FIG. 3, the tip of one strand 2 constituting the end of the wire rope 1 was closed with the upper die 9 with respect to the lower die 7 and the bending die 12 was left open. An operator (not shown) holding the third lever 11 with one hand after inserting it into the insertion tunnel 14 of the bending member 5 and engaging the tip end thereof with the pressing groove 12b The bending die 12 is rotated in the direction of the arrow in the figure. At this time, the operator collectively holds the end portions of the first and second levers 6 and 8 with the other hand and keeps the upper mold 9 closed with respect to the lower mold 7. Then, when the bending die 12 is rotated through the third lever 11 to a position where the folding tunnel 16 is formed by the pressing groove 12b and the opening groove 15 of the bending work 5, that is, the bending die 12 is moved to the lower die. 7 and the upper mold 9 are closed, the pressing groove 1
The tip portion of the strand 2 engaged in the 2b is bent while being guided while being guided by the pressing groove 12b, and is bent into a folded shape, and when the tip portion is housed in the folding tunnel 16, The bending angle is 180 degrees. When the bending of the tip portion of one strand 2 is completed in this way, the upper die 9 and the bending die 12 are opened with respect to the lower die 7 to remove the strand 2 from the bending yard 5, and the remaining steps are followed by the same procedure. The strands 2 of No. 1 are bent one by one using the bending work 5. And each strand 2 of the wire rope 1
If all the tips of the are bent into a folded shape, the socket 3 is moved to a predetermined position to accommodate these tips, and then the bavit metal 4 is packed in the socket 3 as shown in FIG. Complete.

As described above, when the bending work 5 is used in the terminal treatment process of the wire rope 1 and each strand 2 is bent into a predetermined shape defined by the insertion tunnel 14 and the folding tunnel 16, the tip of each strand 2 is bent. Part is sure 180
Since it is bent once, there is no fear that the bending condition will vary, and the quality can be made uniform. Further, the bending work 5 is provided at a position where the third lever 11 of the bending die 12 is farther from the rotation fulcrum (support shaft 13) than the pressing groove 12b, and the force applied to the lever 11 is not so large. Also, since the tip of the strand 2 can be strongly pressed by the pressing groove 12b, even when the strand 2 is thick, bending can be easily performed. After the bending process is completed, the upper die 9 and the bending die 12 are opened with respect to the lower die 7 so that the strand 2 can be easily removed from the bending work 5.

[0014]

As described above, in the bending treatment for terminal treatment of the wire rope according to the present invention, the tip end of the strand inserted in the insertion tunnel is engaged with the pressing groove of the bending die in the open state, Since the bending die is rotated to a closed state through a lever provided at a position far from the pivot point, the tip end of the strand pressed while being guided by the pressing groove is bent into a folded shape. Even if the strand is thick, it can be easily bent,
It has a remarkable effect that the tip of each strand can be bent 180 degrees surely and that the quality can be made uniform, and it is an excellent bender that can cope with the tendency of the strand to increase in diameter as the rope diameter of the wire rope increases. Has become.

[Brief description of drawings]

FIG. 1 is a side view when an upper die and a bending die according to an embodiment are opened with respect to a lower die.

FIG. 2 is a side view when the upper die and the bending die are closed with respect to the lower die.

FIG. 3 is a plan view showing a state in which a tip portion of a strand inserted through the insertion tunnel for bending is engaged in a pressing groove of a bending die.

FIG. 4 is a plan view showing a state in which the tip of one strand is bent 180 degrees by using the bending work.

FIG. 5 is a cross-sectional view showing a state in which a socket is attached to an end of a wire rope by Babbitt type socketing.

[Explanation of symbols]

 1 Wire Rope 2 Strand 3 Socket 4 Babbit Metal 5 Bending Employment 7 Lower Mold 7a Receiving Surface 7b First Recessed Groove 7c First Notch 9 Upper Mold 9a Bottom 9b Second Recessed Groove 9c Second Notch 11 Third Lever 12 Bending die 12a Side 12b Pressing groove 13 Spindle 14 Insertion tunnel 15 Opening groove 16 Folding tunnel

Claims (1)

[Claims] 1. An end of a wire rope formed by twisting a plurality of strands composed of a large number of strands is inserted into a small diameter hole of a tapered socket to return the twist, and the tip of each strand is turned into a folded shape. After bending, the babbitt metal socket is filled with bavit metal. In the bending work used for the bending, a first concave groove is formed on the receiving surface and the concave portion is formed on the edge of the receiving surface. A lower die having a first notch extending substantially parallel to the groove, and rotatably supported so that the bottom surface moves closer to and away from the receiving surface, and abuts the first groove on the bottom surface. An upper die having a second recessed groove capable of forming a tunnel for insertion and a second notch capable of forming an open groove by abutting with the first notch at an edge portion of the bottom surface, One side of the tunnel for insertion A pressing groove that is rotatably supported to move from the open position to a position facing the open groove and that can form a folding tunnel by abutting the open groove is provided on the side surface. And a bending die having a lever provided at a position far from the rotation fulcrum, and the bending die via the lever in a state in which the tip portion of the strand inserted into the insertion tunnel is engaged in the pressing groove. A bending work for terminal treatment of a wire rope, characterized in that the tip portion is pressed while being guided by the pressing groove when the wire rope is rotated.