JP4390029B2 - Long material straightening equipment for long material processing machines such as wire rods, rods and pipes - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a long material straightening device in a long material processing machine such as a wire, a bar, and a tube.
[0002]
[Prior art]
An apparatus in which a wire is introduced into a bending machine through a straightening device, bent, and cut is already known (for example, Japanese Patent Publication No. 63-16214).
[0003]
[Problems to be solved by the invention]
In this conventional apparatus, when the bending process is finished and the wire is cut, the wire is once retracted. At this time, the retracted wire is inadvertently bent by a correcting means such as a group of correcting rollers (waist bending phenomenon) or inadvertently. There was a risk of re-correction if necessary.
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a long material straightening device in a long material processing machine which is not affected by the correction means when a long material is retracted in the processing of a long material. To do.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, the configuration of the present invention is as follows. That is, the first configuration includes a long material feed portion and a long material correction portion, the long material correction portion is a saddle fixed directly or indirectly to the long material feed portion, A guide rail provided on the saddle, a slide base slidably mounted on the guide rail, and a correction means installed on the slide base, and the saddle and the slide base In the meantime, there is provided a retracting means for always urging in the anti-long material feeding direction.
[0006]
The second configuration includes a long material feeding unit and a long material correcting unit, and the long material correcting unit is directly or indirectly fixed to the long material feeding unit, and the saddle. A guide rail provided on the guide rail, a slide base slidably mounted on the guide rail, and a correction means installed on the slide base, between the saddle and the slide base Is provided with a means for sensing the retreat of the long material and a retreat means that operates in response to a signal from the sense means.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below based on an embodiment shown in the drawings. In the overall front view of FIG. 1, a wire (hoop material) W stored in a coil shape on a wire coil stand V ₁ is passed through a correction device A according to the present invention device via a feeding guide V ₂ and sent. It is fed into the wire bending device D through the amount detection roller B and the wire feed roller C.
[0008]
2 to 4, the wire straightening portion A includes a saddle 2 that is indirectly fixed to the wire feed portion C via a feed amount detection roller B, and a guide rail 3 provided on the saddle 2. A sliding base 4 slidably mounted on the guide rail 3 and a correction roller group 6 installed on the sliding base 4 are included. A tension spring 11 is provided between the saddle 2 and the slide 4 as a retreating means that always urges in the direction opposite to the wire feed direction.
[0009]
The saddle 2 is formed of a rectangular parallelepiped frame, and a wide front surface is in a vertical plane. A long guide rail 3 in the horizontal direction is attached to the front surface. A shoe 4b (linear motion bearing) holding the guide rail 3 is attached to the back surface of the slide base body 4a. A rectangular parallelepiped first mounting base frame 5a extending in a vertical plane is fixed to the front face of the slide base, and the vertical correction roller group 6a is attached to the front face 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 the side surface of the first mounting frame 5a, and a horizontal correction roller group 6b is mounted on the upper surface thereof.
[0010]
The connecting plate 1 also serves as a front end stopper 8 of the sliding table 4, and a contact piece (shock absorber) 9 with a cushion is attached to the sliding table 4 side. Further, the rear limit stopper 10 of the slide base 4 is provided at the top and bottom of the saddle 2 with the guide rail 3 interposed therebetween. Then, the other end of the tension spring 11 whose one end is locked to the rear limit stopper 10 is locked to the back surface of the slide base 4.
[0011]
The operating state will be described above. In FIG. 1, the wire rod feeding roller C is driven to feed the wire rod W to the right and fed into the wire rod bending apparatus D. At this time, since the wire W passes rightward while undergoing the bending correction action in the roller groups 6a and 6b of the correction portion A, the sliding base 4 of the correction portion A extends while stretching it against the tension spring 11. The right limit position is maintained by the contact piece 9 coming into contact with the connecting plate 1.
[0012]
Next, when the wire W is retracted by a certain distance in order to receive a cutting action by the bending device D, the slide base 4 is elastic together with the roller groups 6 a and 6 b engaged with the wire W, and the elasticity of the tension spring 11. Retracted by the restoring force, the tension 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 correction roller groups 6a and 6b during retreat, or is not affected by recorrection.
[0013]
In the above-described embodiment, the sliding table 4 is urged backward by the tension spring 11, but instead, it may be retracted by power means. That is, between the saddle 2 and the sliding base 4, there is provided a power retracting means that operates in response to a wire retract command signal. For example, a rack is fixed to the sliding base 4 and a pinion engaged therewith is configured to be rotated by a reversible motor driven by a prime mover or a torsion spring.
[0014]
Further, instead of the tension spring 11, a rope bound to the slide base 4 is guided downward through a guide pulley, and a weight is attached to the lower end thereof. Furthermore, due to the relationship between the frictional force (resistance force) between the wire rod and the straightening roller group and the frictional force between the slide base and the guide rail, for example, it slides almost integrally with the retraction of the wire rod. When the table is also retracted, the retracting means such as the tension spring may be omitted.
[0015]
As the correction means, the one shown in FIG. 5 may be applied instead of the roller groups 6a and 6b. This device 60 is a well-known device, and two end disks 61 and 61 (having a through hole in the center) are concentrically spaced from each other and are connected by two stay rods 62 and 62. A plurality of straightening pieces 63 are fixed to each stay bar at equal intervals, and staggered between the stay bars. The correction piece 63 protrudes from the stay bar 62 so as to cross an axis passing through the centers of the two end disks 61 and 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.
[0016]
The end disk 61, the stay 62, and the correction piece 63 are integrally rotated by a motor 67 via a belt transmission portion 66. And the wire W is introduced from the through-hole of the one end disk 61, passes between the correction pieces 63 while being bent in a waveform, goes out of the through-hole of the other end disk, and is corrected during that time. .
[0017]
The present invention is not limited to the above-described embodiments and embodiments, but includes various modifications without departing from the spirit and scope of the claims.
[0018]
【The invention's effect】
According to the configuration of the present invention, in processing a long material, the long material is not affected by the correction means when the long material is retracted.
[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;
4 is a YY sectional view 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 correction portion B Wire rod feed amount detection portion C Wire rod feed portion D Wire rod bending portion 1 Connecting plate 2 Saddle 3 Guide rail 4 Slide base 4a Body 4b Shoe 5a First mounting base frame 5b Second mounting base 6a Vertical correction Roller group 6b Horizontal correction roller group 8 Front limit stopper 9 Cushioned piece 10 Rear limit stopper 11 Tension spring 12 Wire guide

Claims (2)

A long material feeding portion and a long material straightening portion, wherein the long material straightening portion is directly or indirectly fixed to the long material feeding portion, and a guide provided on the saddle. A rail, a slide base slidably mounted on the guide rail, and a correction means installed on the slide base, and an anti-elongation between the saddle and the slide base. A long material straightening device in a long material processing machine for wire, bar, tube, etc., characterized in that there is provided a retreating means for always energizing in the material feed direction. A long material feeding portion and a long material straightening portion, wherein the long material straightening portion is directly or indirectly fixed to the long material feeding portion, and a guide provided on the saddle. A rail, a slide base slidably mounted on the guide rail, and a correction means installed on the slide base, and a long material between the saddle and the slide base An apparatus for correcting a long material in a long material processing machine for wire, bar, tube, etc., characterized in that means for detecting retraction of the wire and a retreating means that operates in response to a signal from the sensing means are provided.

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