KR100812244B1 - Straightening machine for polygonal metal rod and tube - Google Patents

Abstract

The present invention relates to a device for straightening straightness of a polygonal metal rod, comprising a plurality of rotatable rotating roll assemblies and a movable roll assembly capable of adjusting positions in an up and down direction, the positions of which are fixed, and through which a metal rod is disposed through a central portion thereof. It is made to be drawn out so that the straightness is corrected as the metal rod with polygon pitch and the metal tube with pitch of polygon is rotated and drawn out, and the calibration is excellent, and the rotation speed and the drawing speed can be adjusted. Applicable to the production and production of metal rods and metal tubes having a, and relates to the straightness straightening device of the multiple metal rods that can increase the industrial productivity by simplifying the work process, the technical configuration of the A device for calibrating straightness, the disc being in the center of the calibration target A plurality of straightening roll assemblies corresponding to the shape, the plurality of straightening rolls having a plurality of straightening rolls rotatably mounted; A calibration roll assembly power transmission device for driving the calibration roll assembly, the calibration roll assembly having a power motor having a rotating shaft; And a withdrawal head provided on one side of the calibration roll assembly to withdraw the corrected article passing through the calibration roll; Including, wherein the straightening roll assembly is at least two rotation roll assembly provided between, and each of the rotating roll assembly is provided between the variable roll assembly is movable in the up, down direction to generate displacement in the object to be corrected Characterized in that consisting of a configuration including a.

Multi-Piece, Metal Rod, Straightness Straightener, Straightening Roll Assembly, Rotary Roll Assembly, Variable Roll Assembly, Straightening Roll

Description

Straightening machine for polygonal metal rod and tube

1 is a view schematically showing a two-roll continuous straightening apparatus according to the prior art,

2 is a view schematically showing the operating point of the force of the two-roll continuous straightening device according to the prior art,

Figure 3 is a perspective view schematically showing a release bar straightening device according to the prior art,

Figure 4 is a side perspective view schematically showing a straightness correction device of a polygonal metal rod according to the present invention,

5 is a perspective view schematically showing a straightening roll assembly of the straightness straightening device of the multi-metal bar according to the present invention;

6 is a front view schematically showing a straightening roll assembly of the straightness straightening device for the multi-metal bar according to the present invention;

7 is a perspective view schematically showing a state in which a straightening roll assembly and a straightening roll assembly power transmission device of the straightness straightening device of the multiple metal rod according to the present invention are combined;

Figure 8 is a side perspective view schematically showing the withdrawal head of the straightness straightening device of the polygonal metal rod according to the present invention.

** Explanation of symbols for main parts of the drawing **

1: straightness correcting device of multiple metal rod, 3: proof material,

10: straightening roll assembly,

11a, 11b: rotating roll assembly, 13: variable roll assembly,

15a, 15b, 15c, 15d: installation hole, 17: coupling hole,

30a, 30b, 30c, 30d: straightening roll, 37: bonding piece.

50: straightening roll assembly power transmission device, 51: power motor,

53: gear, 55: axis of rotation,

57: knob, 70: withdrawal head,

71: grip.

The present invention relates to an apparatus for straightening straightness of a metal rod, and more particularly, is composed of a plurality of rotatable roll aggregates which are fixed in position, and movable roll aggregates which can be adjusted in up and down directions, through a central portion thereof. It is made to pull out the metal rod, so that the straightness is corrected by rotating and withdrawing the metal rod with polygonal pitch and the polygonal pitch with hollow, and the calibration is excellent, and the rotation speed and the drawing speed can be adjusted. Applicable to the production and manufacture of metal rods and metal tubes having a variety of forms, and relates to a straightness straightening device of a polygonal metal rod that can increase the industrial productivity by simplifying the work process.

In general, the metal rod straightening device is applied to calibrate the product after plastic processing such as round bar and section steel, and is currently used in many forms and industrially.

The metal rod straightening device is a three-point press, which is a method of calibrating a part to be fixed to two fixed supports and deforming a specific point between two fixed points located on two fixed supports by a press. Applied.

The metal rod straightening device using this three-point press is made to calibrate the entire to-be-corrected object through repetitive work, which is not only very troublesome, but also has a problem of inconvenience.

In other words, the fixed work is repeatedly fixed to a fixed support, and then a specific point is deformed by pressing, so that the work is very cumbersome and the work process is complicated. there was.

On the other hand, in order to solve the problems described above, as shown in Figures 1 and 2, a two-roll continuous straightening device 100 that can be continuously corrected has been proposed.

The two-roll continuous straightening device 100 is composed of two specially designed long gear rolls 101, 101 ', and the two long gears by giving a twist of a certain angle to each of the long gear rolls 101, 101' around the calibration axis As the rolls 101 and 101 'are rotated, the to-be-corrected object is rotated, and the to-be-corrected object is advanced and corrected by the generated frictional force.

At this time, as the bending moment of the two-roll continuous straightening device 100 shown in FIG. 2, the to-be-corrected rod enters the concave roll formed at the outer circumference of the two long-roll rolls, and warpage occurs. The outside of the proof is stretched and the inside is squeezed.

That is, in the case of calibrating the to-be-corrected object through the two-roll continuous fixing device, the to-be-corrected object passes through the two-roll continuous straightening device because the torsion angle between the center line of the two-roll continuous straightening device and the correction axis of the straight object is small. The direction in which the stress acts changes continuously and is corrected.

At this time, in order to more precisely correct the end of the to-be-corrected body to be corrected through the two-roll continuous straightening device, it is preferable to remove the ring formed at the end thereof.

In addition, in order to maintain the position through which the to-be-corrected material passes during the calibration operation through the two-roll continuous straightening device, guide plates should be installed on both sides of the two-roll continuous straightening device, respectively. At this time, the force acting on the corrected object acts at three working points continuously while rotating to correct the corrected object.

Such a two-roll continuous straightening device is capable of straightening a metal rod having a round rod shape, but there is a problem in that it is impossible to straighten a to-be-corrected object such as a metal rod having a polygonal shape, so that only a specific type of metal rod can be straightened.

On the other hand, to solve the above problems as shown in Figure 3, by using a plurality of horizontally aligned rolls 201 to fit the shape of the metal release rod having a polygonal shape to correct the metal release rods Although the release bar straightening device 200 has been proposed, the release bar straightening device 200 has a problem in that it is possible to calibrate a metal bar having various shapes without a pitch, but it is impossible to calibrate a polygonal metal bar having a pitch. .

The present invention has been made in order to solve the above problems, the position is fixed, consisting of a plurality of rotatable roll assembly and the movable roll assembly capable of adjusting the position up and down, the metal rod through the center It is made to be drawn out so that the straightness is corrected as the metal rod with polygon pitch and the metal tube with pitch of polygon is rotated and drawn out, and the calibration is excellent, and the rotation speed and the drawing speed can be adjusted. Applicable to the production and production of metal rods and metal tubes having a, and aims to provide a device for straightening straightness of the polygonal metal rod that can increase the industrial productivity by simplifying the work process.

In order to achieve the object as described above, the present invention, in the calibration device for correcting the straightness of the workpiece to be made of a metal rod, in the form of a disc corresponding to the shape of the workpiece to be centered, rotatably mounted A plurality of straightening roll assemblies having a plurality of straightening rolls; A calibration roll assembly power transmission device for driving the calibration roll assembly, the calibration roll assembly having a power motor having a rotating shaft; And a withdrawal head provided on one side of the calibration roll assembly to withdraw the corrected article passing through the calibration roll; Characterized in that consisting of a configuration including a.

Here, the straightening roll assembly is made rotatable, it is provided between at least two rotary roll assembly and each of the rotary roll assembly is movable between the upper and lower direction to generate displacement in the corrected object It is comprised, including the variable roll aggregate to make.

In addition, the straightening rolls are formed in both sides of the straightening of the straightening roll, and a plurality of installation holes for radially inserting the straightening rolls into the rotating roll assembly and the variable roll assembly are radially penetrated, and both sides of the inner surface of the installation holes. Coupling holes are respectively formed through in place, and the coupling pieces are rotatably coupled to the respective coupling holes.

On the other hand, the calibration roll assembly power transmission device is connected to a power motor having a rotation axis, it is further comprises a gear connected to the rotary roll assembly of the calibration roll assembly to rotate the rotary roll assembly.

Here, a knob is connected to the variable roll assembly at the center of the upper surface of the power transmission device of the straightening roll assembly, and moves the variable roll assembly upward and downward along a groove formed at the inner center thereof.

In addition, the drawing head is connected to the power motor, is connected to the rotary shaft having a screw thread is moved forward and backward in the longitudinal direction of the rotary shaft in accordance with the rotation of the rotary shaft.

In addition, a grip (Grip) is provided on one side of the withdrawal head for holding the end of the corrected object, the grip is made to rotate in accordance with the rotation of the corrected object.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 4 is a side perspective view schematically showing a multi-bar metal bar straightening device according to the present invention, Figure 5 is a perspective view schematically showing a calibration roll assembly of the multi-bar metal bar straightening device according to the present invention, Figure 6 is 7 is a front view schematically showing a calibration roll assembly of a polygonal metal rod straightening device, and FIG. 7 is a perspective view schematically illustrating a combination of a calibration roll assembly and a calibration roll assembly power transmission device of a polygonal metal rod straightening device according to the present invention; Figure 8 is a side perspective view schematically showing the extraction head of the multi-bar metal bar calibration apparatus according to the present invention.

As shown in the figure, the multiple metal rod straightening device 1 according to the present invention includes a straightening roll assembly 10 and a straightening roll assembly power having a plurality of straightening rolls 30a, 30b, 30c, and 30d inserted therein. And a delivery device 50 and an extraction head 70.

The straightening roll assembly 10 is formed in a disc shape and corresponds to the shape of the corrected object 3 at the center thereof, and is rotatably mounted to the plurality of straightening rolls 30a for correcting the corrected object 3. , 30b, 30c, 30d).

Here, the straightening roll assembly 10 is rotatably fixed, provided between at least two rotary roll assembly (11a, 11b) and each of the rotary roll assembly (11a, 11b) is installed in the up and down direction It consists of the variable roll assembly 13 which can be moved by the process.

As described above, the rotary roll assemblies 11a and 11b of the straightening roll assembly 10 are fixed in position, and may rotate the corrected object 3 installed by being rotatable. The variable roll assembly 13 provided between the aggregates 11a and 11b moves the to-be-adjusted object 3 up and down to generate a displacement in the to-be-measured object 3.

Here, the installation holes (15a, 15b, 15c, 15d) for the calibration roll (30a, 30b, 30c, 30d) is inserted into the rotary roll assembly (11a, 11b) and the variable roll assembly 13 is installed in the center A plurality of radially penetrating through the edge of the reference, and the coupling hole 17 is formed in each position on both sides of the inner surface of each of the mounting holes (15a, 15b, 15c, 15d).

On the other hand, the engaging pieces 37 formed in the shape of a rod-shaped body on both side centers of the straightening roll (30a, 30b, 30c, 30d) protrudes to form the rotary roll assembly (11a, 11b) and the variable roll assembly (13) It is coupled to each coupling hole 17 formed in each of the installation holes (15a, 15b, 15c, 15d), thereby allowing the correction rolls (30a, 30b, 30c, 30d) to rotate in the calibration roll assembly 10 Crab is mounted.

Here, the straightening roll assembly 10 is preferably manufactured to suit the shape and dimensions of the polygonal pitch metal rod and the polygonal pitch metal tube having a hollow.

On the other hand, the to-be-corrected body (3) to be corrected through the polygonal metal rod straightening device (1) consists of a metal tube with a polygonal pitch and a metal tube with a polygonal pitch with a hollow, triangular, square, oval and Metal rods and metal tubes having a variety of other shapes can also be calibrated through the multiple metal rod straightening device 1 according to the present invention.

Here, the mounting holes (15a, 15b, 15c, 15d) formed in the calibration roll assembly 10 and the calibration rolls (30a, 30b, 30c, 30d) mounted to the installation holes (15a, 15b, 15c, 15d). The number of can be variously modified depending on the shape of the proof material (3) to be corrected. That is, the installation holes 15a, 15b, 15c, 15d having various shapes such as triangles, squares, ellipses, and formed in the straightening roll assembly 10 according to the shape of the straightening rod 3 to be corrected, and the The number of the calibration rolls 30a, 30b, 30c, and 30d attached to the installation holes 15a, 15b, 15c, and 15d is made variable so as to be more or less.

According to the structure and shape as described above, when the polygonal metal rod and the metal tube, which are the to-be-corrected object 3, move in the longitudinal direction, the surface of the polygonal metal rod and the metal tube is rotated while the calibration rolls 30a, 30b, 30c, and 30d rotate. Move along.

At this time, the surface of the polygonal metal rod that the rotational force according to the rotation of the variable roll assembly 13 of the straightening roll assembly 10 is the corrected object 3 to be corrected through the straightening rolls 30a, 30b, 30c, and 30d. It is transmitted to, and because of this structure is to be rotated to the proof (3), the rotational force to reduce the scratches and damage generated on the surface of the proof (3) during the rotation of the proof (3) It is also preferable that the rotary roll assemblies 11a and 11b be rotated simultaneously with the variable roll assembly 13 in a distributed dimension.

The straightening roll assembly power transmission device 50 is connected to the straightening roll assembly 10 to drive the straightening roll assembly 10, and to the power motor 51 and the power motor 51 having a rotation shaft 55. It comprises a gear 53 to be connected. That is, the straightening roll assembly power transmission device 50 is connected to the rotating roll assembly 10 of the straightening roll assembly 10 to rotate the rotating roll assemblies 11a and 11b.

To this end, the power motor 51 of the straightening roll assembly power transmission device 50 is connected to the gear 53, the gear 53 is connected to the rotary roll assembly (11a, 11b), the power motor ( The rotary roll assemblies 11a and 11b are rotated by the driving of 51.

As described above, the rotary roll assemblies 11a and 11b of the straightening roll assembly 10 are connected to the power motor 51 by the gear 53 to thereby rotate the power generated by the power motor 51 without loss. It transfers to roll aggregates 11a and 11b.

Here, a screw thread (not shown) is formed on the outer circumference of the rotating shaft 55 of the power motor 51, and the rotating shaft 55 is connected to the drawing head 70.

The variable roll assembly 13 is connected to the variable roll assembly 13 at the center of the upper surface of the straightening roll assembly power transmission device 50, and according to the groove (not shown) formed at the inner center thereof. A knob 57 for moving downward is provided.

The withdrawal head 70 is connected to a power motor 51 of the calibration roll assembly power transmission device 50, and is connected to a rotation shaft 55 having a thread of the power motor 51, and the rotation shaft 55. In the longitudinal direction of the rotation axis, that is, in the longitudinal direction of the straightening roll assembly 10, the forward and backward movements.

Here, the withdrawal head 70 is provided on one side of the calibration roll assembly 10 to withdraw the to-be-corrected object 3 to be calibrated through each of the calibration rolls 30a, 30b, 30c, and 30d. The head 70 is inserted into one of the rotary roll assemblies 11a and 11b to be moved to and pulled out through the variable roll assembly 13 and another rotary roll assembly 11b. After grasping (3), it is made to pull outward.

To this end, the withdrawal head 70 is provided with a grip (Grip: 71) for holding the corrected object 3 on one side thereof, and the grip 71 is equal to the rotation of the corrected object 3. It is made of a rotating structure.

In this way, the extraction head 70 is formed in the form of holding the polygonal metal rod, which is the object to be calibrated (3) by the grip 71, as the pull is tightened tightly, the grip 71 of the extraction head 70 is a bearing Is connected to) and is made to rotate while holding the polygonal metal rod that is the to-be-corrected body (3).

By the structure as described above, the extraction head 70 is moved along the rotation shaft 55 when the rotating shaft 55 having a screw thread connected to the power motor 51, the grip 71 is It is connected to the extraction head 70 and the bearing is rotated corresponding to the rotation of the corrected object (3).

Hereinafter, a metal rod calibration method according to the multiple metal rod calibration apparatus according to the present invention.

First, the polygonal metal rod which is the to-be-corrected object 3 is installed in the straightening roll assembly 10. FIG. At this time, it is rotatable in each installation hole 15a, 15b, 15c, 15d formed in the variable roll assembly 13 mounted between each rotary roll assembly 11a, 11b and each said rotary roll assembly 11a, 11b. Each of the straightening rolls 30a, 30b, 30c, and 30d coupled to each other is made to abut on the outer surface of the polygonal metal rod, which is the straight rod 3.

In this way, the rotary roll assemblies 11a and 11b and the variable roll assembly 13 of the straightening roll assembly 10 are provided with a metal rod having a polygonal pitch and a metal tube having a polygonal pitch having a hollow, and then a variable roll. When the assembly 13 is moved up and down by the knob 57 of the straightening roll assembly power transmission device 51 and is fixed, displacement occurs in the central axis of each of the rotary roll assemblies 11a and 11b. As a result, deformation occurs in the metal rod and the metal tube constituting the corrected object 3.

That is, when the metal rod and the metal tube, which is the corrected object 3, are rotated by 180 °, the force acting on the metal rod and the metal tube also changes in a direction opposite to 180 ° of the direction in which the first force was applied. ) Will have a displacement in the opposite direction.

As described above, when the rotary roll assemblies 11a and 11b of the straightening roll assembly 10 rotate, the force acts on the object 3 while the direction of action of the force continuously deforms 360 ° in the circumferential direction. The metal rods and the metal tubes constituting the calibrated object 3 are calibrated while moving in one direction.

Here, the to-be-corrected body 3 passes each calibration roll 13a, 13b, 13c, and 13d mounted on the calibration roll assembly 10 including the rotary roll aggregates 11a and 11b and the variable roll aggregate 13. Is corrected.

At this time, the rotation of the rotary roll assembly (11a, 11b) is made by the power motor 51 and the gear 53 of the calibration roll assembly power transmission device (50).

On the other hand, the withdrawal of the to-be-adjusted object 3 in which warping has occurred is carried out by holding the to-be-adjusted object 3 through the grip 71 of the said extraction head 70, and pulling it at a fixed speed, and the to-be-corrected object 3 is a straightening roll. It is rotated while passing through the rotary roll aggregates 11a and 11b and the variable roll aggregate 13 of the aggregate 10, and the direction of the force acting on the to-be-adjusted object 3 by rotation rotates continuously and is fixed and pulled out. .

At this time, the grip 71 of the drawing head 70 is connected to the screw thread formed on the rotation shaft 55 of the power motor 51 and correspondingly rotated in accordance with the rotation of the to-be-corrected object 3 and the rotation shaft 55. Will move forward and backward.

While the exemplary embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to the specific embodiments, and those skilled in the art are appropriate within the scope described in the claims of the present invention. It will be possible to change.

As described above, the present invention having the configuration as described above is composed of a plurality of rotatable roll rolls which are fixed in position, and a movable roll assembly which can be adjusted in up and down directions, and the metal rods through the center thereof. It is made to be drawn out so that a metal rod with a polygonal pitch and a metal tube with a pitch of the polygon having a hollow are made to be calibrated while rotating and withdrawing. Applicable to the production and production of rods and metal tubes, and can simplify the work process and increase industrial productivity.

Claims (7)

In the calibration device for correcting the straightness of the workpiece to be made of a polygonal metal rod, A plurality of straightening roll assemblies 10 having a plurality of straightening rolls 30a, 30b, 30c, and 30d rotatably mounted correspondingly to the shape of the corrected body 3 in the shape of a disc; A calibration roll assembly power transmission device for driving the calibration roll assembly 10, the calibration roll assembly having a power motor 51 having a rotating shaft 55; And An extraction head (70) provided at one side of the calibration roll assembly (10) for drawing out the corrected object (3) passing through the calibration rolls (30a, 30b, 30c, 30d); Including but not limited to: The straightening roll assembly 10 is provided between at least two rotary roll assemblies 11a and 11b and each of the rotary roll assemblies 11a and 11b and is movable upward and downward to be calibrated. And a variable roll assembly (13) for generating displacement in water (3). delete The method of claim 1, As for the straightening rolls 30a, 30b, 30c, and 30d, the engaging pieces 37 protrude from both side centers thereof, and the straightening rolls 30a and 30b are formed on the rotating roll assemblies 11a and 11b and the variable roll assembly 13. Mounting holes 15a, 15b, 15c, and 15d for insertion of the installation holes 30c and 30d are radially penetrated and coupled to both sides of the inner surfaces of the installation holes 15a, 15b, 15c, and 15d, respectively. Balls (17) are each formed through, and the coupling piece (37) is a straightness straightening device of a polygonal metal rod, characterized in that rotatably coupled to each of the coupling holes (17). The method of claim 1, The straightening roll assembly power transmission device 50 is connected to a power motor 51 having a rotation shaft 55, and is connected to the rotating roll assemblies 11a and 11b of the straightening roll assembly 10 to the rotating roll assembly ( A straightness straightening device for a polygonal metal rod, characterized in that it further comprises a gear (53) for rotating 11a, 11b). The method of claim 4, wherein It is connected to the variable roll assembly 13 at the center of the upper surface of the straightening roll assembly power transmission device 50, and moves the variable roll assembly 13 upward and downward along a groove formed in the inner center thereof. A straightness straightening device for a polygonal metal rod, characterized in that the knob 57 is provided. The method of claim 1, The extraction head 70 is connected to the power motor 51, it is connected to the rotary shaft 55 having a screw thread that is moved forward and backward in the longitudinal direction of the rotary shaft 55 in accordance with the rotation of the rotary shaft 55 Straightness correction device of the multiple metal rods characterized in that. The method of claim 6, A grip 71 is provided on one side of the extraction head 70 to hold an end portion of the corrected object 3, and the grip 71 rotates according to the rotation of the corrected object 3. Straightness correction device of the multiple metal rod, characterized in that.

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