KR20170135559A - Method for forming a metal plate into waveform - Google Patents

Abstract

The present invention relates to a method to form a metal plate into a waveform which is optimized to form a metal plate into a waveform where precise dimension and interval are reflected. To achieve this, the method comprises: a transfer process of feeding the metal plate; a bending process of forming the fed metal plate into a waveform where a first pitch is continued; a first alignment process of aligning the bent metal plate by a second pitch relatively narrower than the first pitch; a second alignment process of aligning the metal plate aligned by the second pitch by a third pitch relatively narrower than the second pitch; and a press process of forming the metal plate aligned by the third pitch into a waveform where any one of fourth pitches equal to or relatively narrower than the third pitch is continued, wherein a ridge and a valley of the waveform are formed in a predetermined shape.

Description

[0001] The present invention relates to a method for forming a metal plate into a waveform,

The present invention relates to a method of forming a metal plate into a waveform, and more particularly, to a method of forming a metal plate into a waveform having a constant pitch.

Generally, a method of forming a metal plate wound in a coil form while rolling it into a wave is formed by a method using a press banding and a banding machine.

The press bending and bending machine method is suitable for molding a metal plate into a concave-convex shape by a single process by bending the metal plate into a desired wave shape by a mold or a banding machine, and is formed by bending several times with thin plate or very fine pitch There is a problem that it can not be applied to a precision processing product to be molded.

In addition, since press bending and bending machine methods are required to be applied to products having precise dimensions and spacing, it is very difficult to manufacture the process lines due to the space and the structural problem of the jig and the equipment due to a large gap and the number of times to be molded. There is a problem in that it is not suitable for mass production, and it is necessary to develop a technology for improving it.

Korean Patent Laid-Open Publication No. 10-2008-0110211 (published date: December 18, 2008)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method of forming a metal plate into a wave form, which is optimized for molding a metal plate into a wave shape reflecting a precise dimension and interval .

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. And will be included in a wide range.

According to an aspect of the present invention, there is provided a method of forming a metal plate into a waveform, the method comprising: a feeding step of feeding a metal plate; A banding step of shaping the supplied metal plate into a waveform having a continuous first pitch; A first aligning step of aligning the bent metal plate to a second pitch relatively narrower than the first pitch; A second aligning step of aligning the metal plate arranged at the second pitch to a third pitch relatively narrower than the second pitch; And a fourth pitch, which is the same as the third pitch or is relatively narrower than the third pitch, is formed into a continuous waveform, and the floor and the valley of the waveform are formed into a predetermined shape And a pressing step in which the molding is performed.

According to a preferred embodiment of the present invention, the bending process includes a pressing punch disposed between the metal plates so as to face each other and forming a waveform corresponding to the first pitch, Is performed.

In addition, according to a preferred embodiment of the present invention, the pressing process may include a step of forming a pin having a plurality of pins at intervals of a pitch corresponding to any one of the fourth pitches which are the same as the third pitches or relatively narrower than the third pitches. Is carried out by a press.

As described above, according to the present invention, the following effects can be expected.

The thickness of the metal plate can be precisely dimensioned and can be formed into a corrugated shape reflecting several tens of fine intervals to thereby mass-produce super precision parts used for heat exchange of fluids and advantageously maximize production efficiency .

In addition, other effects of the present invention can be achieved not only in the embodiments described above and in the claims of the present invention, but also in terms of the effects that can be easily obtained from them and the possibility of provisional advantages contributing to industrial development And that they will be included in a broader range.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a conceptual diagram showing a process flow of a method of forming a metal plate according to the present invention into a waveform. FIG.
2 is a perspective view showing the resultant molded by the present invention.
Fig. 3 is a side view of the resultant molded by the present invention. Fig.
4 is a plan view showing the resultant product formed by the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. It is to be understood that the terminology used herein is for the purpose of describing the embodiments and is not intended to limit the scope of the present invention. It is to be understood that the singular forms of these terms include plural forms unless the context clearly dictates otherwise, Are intended to aid in the understanding of the description and are subject to change at any time.

As shown in Figs. 1 and 2, the present invention is to provide a method of shaping a metal plate into a waveform, which is optimized for forming a metal plate having a thickness and a pitch reflecting a precise dimension .

To this end, the present invention comprises a transferring step S100, a bending step S200, a first aligning step S300, a second aligning step S400 and a pressing step S500, After the step (S500), the cutting step (S600), the pressing step and the taking-out step can be finished.

First, in the transferring step (S100), the metal plate is continuously supplied along a supply line for forming a waveform. The metal plate to be molded according to the present invention is formed in a thin or ultra thin plate shape, and is wound around a winding means 100 such as an uncoiler. The unwinding means 100 is operated by the rotational force of a motor driven by electrical and mechanical signals so that the metal plate can be supplied smoothly. In order to feed the metal plate, a conveying roller unit 200 is provided in front of the unwinding unit 100, in which rollers are arranged to face each other in pairs. As the metal plate is inserted between the rollers of the conveying roller unit 200, the metal plate can be continuously supplied. In addition, it is preferable that a guide for guiding the metal plate in the front and rear direction of the conveying roller unit 200 in a predetermined direction so as to bias the metal plate in the up, down, left,

Next, the bending process (S200) is a process of bending the supplied metal plate into a waveform having a uniform first pitch. The bending process (S200) is a process for forming a base structure for forming a metal plate into a wave form to determine dimensions such as wave height and wave height of a metal plate formed into a waveform, and a pair of banding rollers And a pressing punch is provided on the outer circumferential surface of each of the banding rollers so as to mesh with each other at a gear ratio capable of realizing a first pitch. The banding roller unit 300 can form the metal plate, which enters the banding rollers 300, in the shape, height, and width of the continuous waveform of the first pitch. The shape of each of the pressing punches is a triangle shape, It is preferable to form the corrugated base structure so as to form a corrugated shape.

Then, the first aligning process (S300) and the second aligning process (S400) are performed by aligning the metal plate formed with the continuous pitch of the first pitch through the bending process (S200) to a second pitch relatively narrower than the first pitch Process. The first aligning step S300 is a step of sequentially decreasing the pitch in order to prevent damage to the metal plate due to a sudden decrease in pitch. The first aligning step S300 is a process of compressing a predetermined section in the transfer line of the metal plate, It may be desirable to align the metal plate with a continuous wave of the second pitch by applying a frictional force or a resistance force to the metal plate.

The second aligning step (S400) is a step of aligning the metal plates arranged in a continuous waveform of the second pitch through a first aligning step (S400) to a third pitch relatively narrower than the second pitch. The second aligning step (S400) may be implemented in the same manner as the first aligning step (S300) described above, but in order to realize dimensional accuracy of the third pitches, protrusions are formed at the same interval as the third pitch And is performed by the pitching roller 500 which is operated by driving the servo motor. The pitching roller is disposed close to the traveling direction (X-axis direction) of any one of the floor or the valley of the metal plate arranged in a continuous waveform of the second pitch, and the feeding speed of the metal plate and the rotation speed of the pitching roller 500 Control allows the metal plate to undergo resistance at a time of stagnation while passing through the pitching roller 500 so that the metal plate can be formed with the waveform of the third pitch.

The pressing step S500 to be performed later is to form the metal plate arranged at the third pitch into a waveform in which one of the pitches of the fourth pitch is the same as the third pitch or is relatively narrower than the third pitch, And molding the troughs into a predetermined shape. The pressing step (S500) is performed by a pin press (700) which is installed at the upper portion or the lower portion in the traveling direction of the metal plate arranged at the third pitch, or is disposed opposite to each of the upper and lower portions. The pin press 700 is provided with pins as many as the desired number (the number corresponding to the desired pitch) along the traveling direction of the metal plate, and the length of the pin is formed to correspond to the length between the floor of the corrugation and the valley. As shown in FIG. 3, the ends of the pins are formed in a round shape or a desired shape such as a horizontal shape, and the interval between the pins is equal to or smaller than the third pitch And the pitch corresponding to any one of the fourth pitches. Accordingly, when the pin press 700 is lowered or raised and raised and positioned between the pitches of the plates, stagnation occurs in the plates. When the intervals of the pins are adjusted to the fourth pitch, the same phenomenon as compression occurs, And a fourth pitch that is the same as the third pitch or relatively narrower than the third pitch.

4, when the width direction (Z-axis direction) of the metal plate is to be formed in a corrugated shape, a surface corresponding to the width direction of the fin or the press punch and the fin is formed in a corrugated shape, So that the waveform can be applied.

Next, the cutting step (S600) is a step of cutting the plate that has undergone the pressing step (S500) to a necessary length, and is performed by a laser or plasma cutting method in consideration of the speed at which the metal plate is fed in order to realize dimensional accuracy Lt; / RTI >

The pressing process (not shown) is a process of finally cutting the metal plate cut through the cutting process (S600) to a desired dimension, and compressing the cut metal plate without interfering with the waiting metal plate. Such a pressing process may allow a pair of compression blocks moving forward and backward, spaced apart by a predetermined length along the conveying direction of the metal plate, to approach a distance of a desired dimension to enable the dimension correction of the cut metal plate.

The subsequent taking-out step (not shown) is a step taken out through a conveyor installed downward so as not to cause shape deformation and dimensional deformation to the metal plate subjected to the pressing process.

Finally, as shown in FIG. 2, according to the present invention, since the metal plate is formed so as to form a waveform having a minute pitch repeated several tens times in spite of the thin thin plate, the effect of maximizing the heat exchange area of the fluid in the ultra- It will be possible.

It will be apparent to those skilled in the art that various modifications, substitutions, and alterations can be made hereto without departing from the spirit and scope of the present invention as defined by the appended claims. It will be possible. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention only as well as the appended claims. It is not. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

S100: Transfer process
S200: Bending process
S300: First alignment process
S400: Second alignment process
S500: Pressing process
S600: Cutting process

Claims (3)

A transferring step of supplying a metal plate;
A banding step of shaping the supplied metal plate into a waveform having a continuous first pitch;
A first aligning step of aligning the bent metal plate to a second pitch relatively narrower than the first pitch;
A second aligning step of aligning the metal plate arranged at the second pitch to a third pitch relatively narrower than the second pitch; And
The metal plate arranged at the third pitch is formed into a waveform having the same pitch as the third pitch or a fourth pitch relatively narrower than the third pitch so as to form the corrugations and valleys of the corrugations into a predetermined shape And pressing the metal plate to form a metal plate. The method according to claim 1,
In the bending process,
And a pressing punch which is disposed between the metal plates so as to face each other and forms a waveform in a shape corresponding to the first pitch is performed by operation of a banding roller provided on each outer circumferential surface. How to. The method according to claim 1,
In the pressing step,
And a fourth pitch which is the same as the third pitch or which is relatively narrower than the third pitch is formed by a pin press provided with a plurality of fins at intervals of a pitch corresponding to any one of the pitches of the first pitch and the fourth pitch which is relatively narrower than the third pitch. How to.

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