JP2002192233A - Apparatus for straightening long size material in a processing machine for the same such as wire, rod, or tube - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for straighening a long size material without receiving the influence of a straightening means upon retreat of the long size material when being bent. SOLUTION: The apparatus has a conveying part for conveying a long size material and a straightening part for straightening the long size material. The straightening part has a saddle fixed directly or indirectly relative to the conveying part, a guide rail mounted on the saddle, a sliding bed slidably mounted on the guide rail, and a straightening means arranged on the sliding bed. A retracting means for always energizing the material in the opposite direction of the conveyance of the material is provided between the saddle and the sliding bed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a long material straightening device in a long material processing machine for a wire, a bar, a pipe, or the like.

[0002]

2. Description of the Related Art A wire rod is introduced into a bending machine through a straightening device, bent, cut and cut (for example, Japanese Patent Publication No. 63-16214).

[0003]

SUMMARY OF THE INVENTION In this conventional device,
When the wire is cut after the bending process, the wire is once retracted. At this time, the retracted wire is bent carelessly by a straightening means such as a straightening roller group (a waist bending phenomenon) or unnecessarily re-corrected. There was a fear that it would. An object of the present invention is to solve the above-described problems, and to provide a long material straightening device in a long material processing machine that is not affected by the straightening means when the long material is retracted in processing the long material. I do.

[0004]

Means for Solving the Problems To solve the above problems, the configuration of the present invention is as follows. That is, the first configuration includes a long material feeding portion and a long material correcting portion, and the long material correcting portion includes a saddle fixed directly or indirectly to the long material feeding portion, A guide rail provided on the saddle, a slide table slidably mounted on the guide rail, and a correcting means installed on the slide table are included.

A second structure is that, in addition to the first structure, a retreating means is provided between the saddle and the slide table so as to constantly urge in a direction in which the long material is fed.

In a third configuration, in addition to the first configuration, between the saddle and the slide table, there is provided a means for sensing retreat of the long material, and a retreat means which operates upon receiving a signal from the sensing means. Is provided.

[0007]

Embodiments of the present invention will be described below based on one embodiment shown in the drawings. Throughout the front view of FIG. 1, the wire coil stand V wire pooled coiled ₁ (hoop material) W, via the feeding guide V _2, passed through a straightening apparatus A according to the present invention apparatus, feed It is fed into a wire bending device D via an amount detection roller B and a wire feed roller C.

In FIG. 2 to FIG. 4, the wire straightening section A
A saddle 2 is indirectly fixed to the wire feed section C via a feed amount detection roller B, a guide rail 3 provided on the saddle 2, and slidably mounted on the guide rail 3. It includes a slide 4 and a correction roller group 6 installed on the slide 4. Further, a tension spring 11 is provided between the saddle 2 and the slide table 4 as a retreating means which constantly urges in the direction of feeding the opposite wire.

The saddle 2 is formed of a rectangular parallelepiped frame.
The wide front is in the vertical plane. A guide rail 3 which is long in the horizontal direction is attached to this front surface. A shoe 4b (a linear motion bearing) holding the guide rail 3 is used as a slide base body 4a.
Attached to the back of the. A rectangular parallelepiped first mounting base frame 5a extending in a vertical plane is fixed to the front surface of the slide table, and a vertical straightening roller group 6a is mounted to the front surface thereof. The wire guide 12 projects from the first mounting frame 5a in the wire feed direction. A rectangular parallelepiped second mounting frame 5b extending in a horizontal plane is fixed to a side surface of the first mounting frame 5a, and a horizontal correction roller group 6b is mounted on the upper surface thereof.

The connecting plate 1 is provided with a front end stopper 8 of the slide 4.
The cushioning contact piece (shock absorber) 9 is attached to the slide table 4 side. Also, slide table 4
The rear end stopper 10 is located on the front of the saddle 2 and the guide rail 3
Are provided vertically. The other end of the tension spring 11 whose one end is locked by the rear end stopper 10 is locked on the back surface of the slide base 4.

The operating state will be described above. Now, in FIG. 1, the wire feed roller C is driven to send the wire W to the right, and the wire W is sent to the wire bending device D. At this time, the wire rod W passes to the right while undergoing the bending correction action in the roller groups 6a and 6b of the straightening unit A. Therefore, the slide 4 of the straightening unit A stretches it against the tension spring 11 while stretching it. The right end position is maintained by the contact of the piece 9 with the connecting plate 1.

Next, when the wire W is retracted by a certain distance to be subjected to the cutting action by the bending device D, the slide table 4 is pulled together with the roller groups 6a and 6b engaged with the wire W by the tension spring. The tension spring 11 is retracted by the elastic restoring force of 11, and the extension spring 11 contracts and stops the slide table 4 before it hits the rear limit stopper 10. Therefore, the wire W is not bent by the straightening roller groups 6a and 6b during retreat, or is not affected by re-straightening or the like.

In the above embodiment, the slide table 4 is connected to the tension spring 1.
Although it is biased to the retreat side in step 1, it may be moved backward by a power means instead. That is, between the saddle 2 and the slide 4, there is provided a power retreating means which operates upon receiving a wire retreat command signal. For example, a rack is fixed to the slide 4 and a pinion meshing with the rack is rotated by a reversible motor driven by a motor or a torsion spring.

Instead of the tension spring 11, a rope connected to the slide 4 is guided downward via a guide pulley, and a weight is attached to the lower end thereof. Furthermore, the relationship between the frictional force (resistance) between the wire and the straightening roller group and the frictional force between the slide table and the guide rail, for example, the sliding is performed almost integrally with the retraction of the wire. When the platform retreats,
In some cases, the retracting means such as the tension spring may be omitted.

As the correcting means, the roller group 6
Instead of a and 6b, the one shown in FIG. 5 is also applied. This device 60 is of a known type and includes two end disks 61, 61.
(Having a through-hole at the center) are connected by two stay bars 62, 62 concentrically and spaced apart. A plurality of correction pieces 63 are fixed to each stay bar at equal intervals, and are staggered between the stay bars. The straightening piece 63 projects from the stay bar 62 so as to cross an axis passing through the centers of the two end disks 61. A hollow short shaft 64 is fixed concentrically to the outer surface of the end disk 61, and these hollow short shafts are rotatably supported by bearings 65.

The end disk 61, the stay 62 and the correction piece 63
Are integrally rotated by a motor 67 via a belt transmission section 66. And the wire W is one end disk 61
Is passed through the straightening pieces 63 while being bent in a corrugated manner, and exits from the through-hole of the other end disk, and is corrected in the meantime.

The present invention is not limited to the examples and embodiments described above, but includes various modifications without departing from the spirit and scope of the appended claims.

[0018]

According to the configuration of the present invention, in the processing of a long material, the long material is not affected by the straightening means at the time of retreat.

[Brief description of the drawings]

FIG. 1 is a schematic front view of an entire apparatus including an embodiment of the present invention.

FIG. 2 is an enlarged view of a main part (correction part) of FIG.

FIG. 3 is a plan view of FIG. 2;

FIG. 4 is a sectional view taken along line YY of FIG. 2;

FIG. 5 is a cross-sectional view of another embodiment of the correction unit.

[Explanation of symbols]

 W wire rod A wire rod straightening section B wire rod feed amount detecting section C wire rod feeding section D wire rod bending section 1 connecting plate 2 saddle 3 guide rail 4 slide 4a body 4b shoe 5a first mounting frame 5b second mounting 6a vertical straightening Roller group 6b Horizontal straightening roller group 8 Front limit stopper 9 Cushioning contact piece 10 Rear limit stopper 11 Tension spring 12 Wire guide

Claims (3)

[Claims] 1. A long material straightening portion, comprising a long material straightening portion, wherein said long straightening portion is directly or indirectly fixed to said long material straightening portion, and said saddle. , A rod, a rod, a tube, etc., including a guide rail provided on the slide rail, a slide slidably mounted on the guide rail, and a correction means installed on the slide. Long material straightening equipment in long material processing machines. 2. A wire rod, a rod, and a rod according to claim 1, wherein a retreating means is provided between the saddle and the slide table so as to always urge in a direction in which the long material is fed. Long material straightening equipment in long material processing machines such as pipes. 3. A means for detecting retreat of a long material and a retreat means which is operated in response to a signal from the sensing means, is provided between the saddle and the slide table. A long material straightening apparatus in a long material processing machine such as a wire, a bar, or a tube according to claim 1.