KR101905694B1 - Apparatus and method for processing plate - Google Patents

Abstract

Disclosed are an apparatus for processing a plate and a method capable of improving productivity while being compact. The disclosed apparatus for processing a plate comprises: a first uncoiler on which a first plate is wound; a second uncoiler on which a second plate is wound; a feeding unit for feeding the first plate and the second plate overlapping each other by overlapping the first plate and the second plate; a welding unit for welding the overlapped first plate and the second plate to be fed from the feeding unit; and a mold unit for press-working the first and second plates to be welded.

Description

[0001] APPARATUS AND METHOD FOR PROCESSING PLATE [0002]

The present invention relates to a sheet material processing apparatus and a sheet material processing method, and more particularly, to a sheet material processing apparatus and a sheet material processing method that are compact and capable of improving productivity.

Generally, the plate material processing apparatus supplies the plate material to the mold, and then produces the product through the press processing process.

A conventional sheet material processing apparatus produces one product during one press working. This device is not only time consuming to produce a large quantity of products but also causes a lot of press work on the mold.

Further, a sheet material processing apparatus capable of simultaneously producing a plurality of products by a single press working has been disclosed. This device has a configuration in which a plurality of molds are mounted on a single press device, so that the productivity can be enhanced. However, this plate material processing apparatus is large in the volume of the press apparatus, and the increase in the price due to the addition of the mold and the increase of the power demand for the press processing by the plurality of the molds are caused.

Korean Patent Publication No. 10-2010-0001310 (Disclosure Date: January 06, 2010)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a plate material processing apparatus and a plate material processing method which are compact and capable of increasing productivity while reducing the number of input labor and cost, .

The task of the present application is not limited to the above-mentioned problems, and another task which is not mentioned can be clearly understood by a person skilled in the art from the following description.

According to an aspect of the present invention, there is provided a sheet material processing apparatus comprising: a first uncoiler having a first sheet wound thereon; A second uncoiler in which the second plate is wound; A feeding unit that overlaps the first plate and the second plate, and feeds the first and second plates overlapping each other; A welded portion transferred from the feeding portion and welding the overlapped first and second plate materials; And a metal mold for press-working the first and second plate materials welded.

The feeding section includes a plurality of upper rollers and a plurality of lower rollers, and the first and second plate materials can pass between the upper roller and the lower roller in a mutually overlapping state.

Here, the diameter of the plurality of upper rollers is the same, the imaginary extension line connecting the center axes of the upper rollers is a straight line, the diameters of the lower rollers are equal to each other, The virtual extension line connecting the axes may be straight.

The feeding part may include a separation preventing member for preventing the side surfaces of the first and second plates from being separated when the first and second plates are pulled out from the feeding part in a mutually overlapping state.

The welds may perform spot welding with respect to the first and second plates that overlap one another.

Further, the present invention may further include a third uncoiler in which the third plate is wound, the third plate being provided in the third uncoiler is moved so as to overlap with the first and second plates, The third plate may be welded to the first and second plates, and the die may press the third plate together with the first and second plates.

Also, the first uncoiler and the second uncoiler may be arranged horizontally in a line.

According to another aspect of the present invention, there is provided a method of processing a sheet material using a sheet material processing apparatus, comprising: releasing the first and second sheet materials wound around the first and second uncoilers; Overlapping the first plate and the second plate; Welding the overlapped first and second plates together; And pressing the first and second plates welded to each other.

The sheet material processing apparatus according to the present invention can process at least two products at a time through a single mold, thereby improving productivity and reducing the volume of the product compactly.

Further, the apparatus and method for plate material processing according to the present invention can reduce the cost by reducing the number of input labor and improving the productivity by performing the welding automation process before the press processing step.

The effects of the present application are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the following description.

1 is a schematic view showing a plate material processing apparatus according to an embodiment of the present invention;
FIG. 2 is a partial perspective view of a separation preventing member of a feeding part of a sheet material processing apparatus according to an embodiment of the present invention. FIG.
3A and 3B are side views showing a welding portion of the plate material processing apparatus according to an embodiment of the present invention
3C is a side view showing a welded portion of the plate material processing apparatus according to another embodiment of the present invention
FIG. 4 is a sectional view showing a mold part of a sheet material processing apparatus according to an embodiment of the present invention
5A and 5B are views showing examples of the result of the pressing process of the sheet material processing apparatus according to the embodiment of the present invention
6 is a view showing a plate material processing apparatus according to another embodiment of the present invention
FIG. 7 is a flowchart showing processing steps of a plate material processing method according to an embodiment of the present invention
8 is a schematic view showing a plate material processing apparatus according to another embodiment of the present invention,
FIG. 9 is a perspective view showing a transfer section of a sheet material processing apparatus according to another embodiment of the present invention.
10 and 11 are schematic views showing a coupling relationship between a slider and a rail of a plate material processing apparatus according to another embodiment of the present invention.
12 is a perspective view showing a ball retainer of a transfer section of a sheet material processing apparatus according to another embodiment of the present invention.
13 is an exploded perspective view showing a ball, a bending spring portion, and a fixing plate in a ball retainer of a conveying portion of a sheet material processing apparatus according to another embodiment of the present invention.
14 is an exploded perspective view showing only the first bending spring portion and the first fixing plate of the ball retainer of the transfer portion of the sheet material processing apparatus according to another embodiment of the present invention.
15 is an exploded perspective view showing only the second bending spring portion and the second fixing plate of the ball retainer of the transfer portion of the plate material processing apparatus according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood, however, that the appended drawings illustrate the present invention in order to more easily explain the present invention, and the scope of the present invention is not limited thereto. You will know.

Also, the terms used in the present application are used only to describe specific embodiments and are not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

It is to be understood that the terms "comprises" or "having" in this application are intended to specify the presence of stated features, integers, steps, operations, elements, parts, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, or combinations thereof.

1 is a schematic view showing a sheet material processing apparatus according to an embodiment of the present invention.

1, a sheet material processing apparatus according to an embodiment of the present invention includes a first uncoiler 110 to which a first sheet material 111 is wound, a second uncoiler 110 to which a second sheet material 131 is wound, A feeder 130, a feeding part 150, a welding part 170, and a mold part 190.

The first and second uncoilers 110 and 130 are devices for unwinding the first and second plates 111 and 131 wound in a coil shape. The first and second uncoilers 110 and 130 are formed by sandwiching the first and second plates 111 and 131 on the rotating mandrel and sandwiching the first and second plates 111 and 131, The first and second plates 111 and 131 can be wound around the mandrel or unwound from the mandrel.

The feeding unit 150 overlaps the first plate 111 and the second plate 131 to feed the first and second plates 111 and 131 overlapping each other. The first plate 111 unwound from the first uncoiler 110 and the second plate 131 unwound from the second uncoiler 130 are drawn into the feeding portion 150, And the second plate member 131 are overlapped with each other. The guiding portion 10 may be provided to guide the path of the first plate 111 and the second plate 131 to the feeding portion 150, as shown in FIG.

The guiding unit 10 may include a first upper pressing roller for pushing and conveying the first plate 111 downward and a second upper pressing roller for pressing and conveying the second plate 131 downward. The first upper pressure roller and the second upper pressure roller may be disposed below the first uncoiler 110 and the second uncoiler 130 so as to be spaced apart from each other in the up-down direction and the left-right direction.

Accordingly, the first sheet material 111 and the second sheet material 131 supplied from the first uncoiler 110 and the second uncoiler 130 arranged to be spaced apart from each other by a predetermined distance are naturally stacked and fed in the process of being fed .

When the upper rollers 151 and the lower rollers 153 of the feeding part 150 are horizontally installed, the first upper pressure roller and the second upper pressure roller are respectively connected to the upper roller 151 and the lower roller 153 And the first plate 111 and the second plate 131 located on the upper side are supplied while passing through the first upper pressure roller and the second upper pressure roller on the lower side, To the upper rollers 151 and the lower rollers 153 arranged on the upper side of the upper pressure roller and the second upper pressure roller and arranged in the horizontal direction.

Therefore, the two sheet materials can be naturally stacked and supplied to the upper roller 151 and the lower roller 153 of the feeding part 150 while being supplied from the first and second uncoilers 110 and 130, have.

The first and second upper plates 111 and 131 are supported between the first upper pressing roller and the second upper pressing roller and the upper roller 151 and the lower roller 153 of the feeding part 150, The first and second plates 111 and 131 can be stably supported at the lower side while being supplied to the upper roller 151 and the lower roller 153 of the feeding part 150. [

Therefore, the first and second upper pressing rollers, the second upper pressing roller, and the supporting rollers can stably support and convey the first and second plates 111 and 131 while making the laminated state.

 At this time, two or more supporting rollers are arranged so as to be spaced apart from each other by a predetermined distance in the up-and-down direction and the horizontal direction, so that the first and second plates 111 and 131 can be more stably supported while being stacked.

The feeding unit 150 includes a plurality of upper rollers 151 and a plurality of lower rollers 153. The overlapped first and second plates 111 and 131 are connected to a plurality of upper rollers 151, And can pass between the plurality of lower rollers 153. The thickness of the first plate 111 and the second plate 131 is equal to or smaller than the distance d between the plurality of upper rollers 151 and the plurality of lower rollers 153. [

The upper roller 151 and the lower roller 153 rotate while supporting the first plate 111 and the second plate 131 so that the first plate 111 and the second plate 131 overlap each other, .

At this time, the imaginary extension line L1 connecting the center axes of the plurality of upper rollers 151 is linear and the diameters of the plurality of upper rollers 151 are equal to each other. A virtual extension line L2 connecting the central axes of the plurality of lower rollers 153 is also a straight line, and the diameters of the plurality of lower rollers 153 may be equal to each other. The first plate 111 and the second plate 131 can be linearly moved when the first plate 111 and the second plate 131 are overlapped with each other and thus the shaking of the first plate 111 and the second plate 131 is reduced, The disturbance of the two plate members 131 can be reduced.

Unlike the embodiment of the present invention, when the diameters of the upper rollers 151 are different or the diameters of the lower rollers 153 are different, the movement of the overlapped first plate 111 and the second plate 131 is not linear, The first plate member 111 and the second plate member 131 may be shaken and the overlapping of the first plate member 111 and the second plate member 131 may be disturbed.

2, when the first and second plates 111 and 131 are drawn out from the feeding unit 150, the feeding unit 150 moves the first plate 111 and the second plate 131 (Not shown). The first plate material 111 and the second plate material 131 which are overlapped between the plurality of separation preventing members 155 can pass through and the both sides of the first plate material 111 and the second plate material 131 can be separated ). ≪ / RTI >

The release preventing member 155 prevents the first plate 111 from moving in the other direction of the conveying direction or the second plate 131 from moving in a direction different from the conveying direction, So that the overlapping of the plate member 131 can be maintained.

2, the conveying guiding unit 160 may be provided between the feeding unit 150 and the welding unit 170. In addition, as shown in FIG. The conveying guiding unit 160 may guide the conveying path so that the first plate 111 and the second plate 131 drawn out from the feeding unit 150 can be drawn into the welding unit 170. [ For this purpose, the conveying guiding unit 160 includes a guiding roller 161 capable of rotating while pressing the first plate 111 or the second plate 131, and a roller connecting part (not shown) to which the rotating shafts of the guiding roller 161 are connected 163).

The welding portion 170 welds the overlapped first plate 111 and the second plate 131 transferred from the feeding portion 150. Figs. 3A to 3C show an example of a welded portion 170 for welding the overlapping first and second members. As shown in FIGS. 3A and 3B, the welding portion 170 can perform spot welding on the first plate 111 and the second plate 131 which are overlapped with each other. The welding portion 170 can weld the first plate 111 and the second plate 131 by flowing an electric current through the electrode 171. [

In FIG. 3A, two pairs of electrodes 171 are shown at the upper and lower ends, but the present invention is not limited thereto. In addition, an electrode (see FIG. 3B) may also be provided on the opposite side of the electrode shown in FIG. 3A. As shown in FIG. 3B, the conveying guiding unit 160 may be positioned between the left and right electrodes 171. In other words, the conveying guiding unit 160 can extend to the welded portion 170, so that the first and second plates 111 and 131 can be stably conveyed to the welded portion 170 in a superposed state.

As another embodiment, one electrode of the upper electrode or the lower electrode of FIG. 3A may be replaced with a single conductive plate as shown in FIG. 3C. That is, a plurality of electrode tips to which one power supply of the same polarity (+) or (-) is supplied is disposed on one side of the stacked first and second plates 111 and 131, And a conductive plate to which a power supply of an opposite polarity to the electrode tips is applied may be disposed on the other side.

For example, a plurality of electrode tips to which positive (+) power of the same polarity is supplied are arranged on one side of the first plate 111 and the second plate 131 which are supplied in a stacked state, And a conductive plate to which a negative (-) polarity power source is applied may be disposed on one side of the upper electrode tips. In this case, when the first plate 111 and the second plate 131 are supplied in a laminated state, the (-) polarity integral plate is supported by the lower surface, and the plurality of electrode tips of the polarity The power source is contacted with the upper surface of the first plate 111 on the upper surface and spot welding can be performed at the portion contacting the electrode tips.

In this case, more welding points can be welded with a simple structure, so that the first plate 111 and the second plate 131 can be more firmly welded with a simple structure. Therefore, when the shape of the first plate 111 and the second plate 131 is deformed in the mold part 190 of the next step, it is possible to prevent the problem that the welding is dropped at the welding point at the time of deformation.

This is because when the first and second plates 111 and 131 are welded in a plate form and then the shape is formed in the mold section 190, the first plate 111 and the second plate 131 It is possible to weld more welding points with a simple structure as in the embodiment shown in Fig. 3C, so that it is possible to weld more welding points in the mold part 190 after the plate material is welded It is possible to prevent the welding point from falling even when the shape is deformed.

As another embodiment, it is also possible that the welded portion 170 and the mold portion 190 are integrally formed on the same stage. In this case, the first plate 111 and the second plate 131 stacked in the metal mold of the mold unit 190 are deformed in shape, and at the same time, the spot welding can be performed by the electrode tips of the same shape as the micrphin. In this case, when the first plate 111 and the second plate 131 are welded in a plate state and then the shape is formed in the mold section 190, the first plate 111 and the second plate It is possible to prevent the welded portion from falling due to the applied stress in the horizontal direction.

On the other hand, a plurality of lower conductive plates may be arranged, and a plurality of electrode tips may be arranged on one plate. In this case, the arrangement of the lower conductive plates can be further facilitated. Particularly, even when the shape is complicated, the degree of freedom in arranging the conductive plates can be increased.

As shown in FIG. 4, the mold unit 190 presses the first plate 111 and the second plate 131 welded. Whereby a desired shape of the product can be produced.

5A, when pressing the first plate 111 and the second plate 131 welded with the mold part 190, if the press area includes the welding area, The first plate 111 and the second plate 131 may be manufactured in a welded state.

Also, as shown in Fig. 5B, when the press area of the mold part 190 does not include the weld area, the same plurality of results can be produced at the same time.

On the other hand, in the case of the sheet material processing apparatus according to the embodiment of the present invention, the first sheet material 111 and the second sheet material 131 which are overlapped with each other during the production of a product in which a plurality of sheets of sheet material are attached, . Therefore, it is possible to rapidly process the plate material without complicated processes such as making each of the plurality of plate materials have the same shape and attaching each plate material.

Further, as shown in Fig. 5B, since a plurality of results can be produced by a single pressing process, the resultant can be rapidly and mass-produced.

In embodiments of the present invention, the mold may be a blanking / cut (CUT) mold and a PROGRESSIVE mold, but is not limited thereto.

Meanwhile, as shown in FIG. 1, the first uncoiler 110 and the second uncoiler 130 may be arranged horizontally in a line. In this case, since the plurality of uncoilers 110 and 130 can be disposed on the ground via the support rods 113 and 133, the first uncoiler 110 and the second uncoiler 130 can be disposed with a simple structure .

6 is a schematic view showing a plate material processing apparatus according to another embodiment of the present invention.

Referring to FIG. 6, the sheet material processing apparatus according to another embodiment of the present invention includes a third sheet material 211 wound around the third sheet material 211, as viewed in comparison with the sheet material processing apparatus according to an embodiment of the present invention shown in FIG. An uncoiler 210 may be further included. In this case, the feeding part 150 can transfer the first plate 111 to the third plate 211 to the welding part 170 in an overlapped state.

The welded portion 170 welds the overlapped first plate 111, the second plate 131 and the third plate 211 and the mold portion 190 welds the first plate 111, the second plate 131 and the third plate 211 can be press-processed. Accordingly, the three-fold plate material can be pressed.

Although the first to third uncoilers 210 are illustrated as an example in the present embodiment, the present invention is not limited thereto, and four or more uncoilers may be provided to simultaneously perform press processes on four or more layers of plate materials.

Hereinafter, a plate material processing method according to an embodiment of the present invention will be described.

7 is a flowchart showing the processing steps of the plate material processing method according to the embodiment of the present invention. Referring to FIG. 7, in a method for processing sheet metal according to an embodiment of the present invention, a first sheet material 111 and a second sheet material 131 on which a first uncoiler 110 and a second uncoiler 130 are wound are unwound A step S120 of overlapping the first plate 111 and the second plate 131 with a step S130 of welding the first plate 111 and the second plate 131 overlapping each other, And a step (S140) of performing press working on the first plate material 111 and the second plate material 131 which have been welded.

In the present embodiment, the first and second plates 111 and 131 are overlapped. However, the present invention is not limited to this, and three or more plates may be stacked.

The release preventing member 155 of the present invention prevents the first plate 111 from moving in the other direction of the conveying direction or moving the second plate 131 in a direction different from the conveying direction 2)

At this time, the release preventing member 155 may be installed on the guide member G having the slot G1 as shown in the drawing, and may be moved back and forth in the direction of the first plate 111 or the second plate 131, It is also possible to provide a separate conveying part 300 which directly advances and retreats the release preventing member 155 as shown in FIG.

Meanwhile, the guide member G or the transfer unit 300 may be disposed on a predetermined table T, and since such a table T is a well-known structure, detailed description and illustration are omitted.

9 to 15, the transfer unit 300 includes a rail 340 disposed on the table T and disposed in a direction toward the first plate 111 or the second plate 131, A slider 310 movably coupled to the rail 340 and fixed to the release preventing member 150 and a ball screw 320 screwed to the slider 310 and disposed in the direction of the rail 340 . At this time, the ball screw 320 is rotated by a driving unit M using an electric motor or the like, and the driving unit M is controlled by a control unit (not shown).

That is, when the ball screw 320 is rotated by the driving unit M, the slider 310, which is screwed with the ball screw 320, moves back and forth. The slider 310 moves back and forth in the direction of the first plate 111 or the second plate 131 in accordance with the rotation direction of the ball screw 320. The control unit determines the rotational direction of the ball screw 320 so that the slider 310 moves back and forth in the direction of the first plate 111 or the second plate 131 as described above.

The slider 310 is coupled with the rail 340 so as to perform an accurate linear movement. The slider 310 has a slider body 311 having a shape of ∩ and receiving the rail 340 therein, A load electromotive groove 312 formed in the inner surface of the vertical portions 311-2 on both sides of the vertical portion 311 and a preload 313 formed as an empty space in the thick portions of the both vertical portions 311-2, . A horizontal portion 311-1 is disposed between both vertical portions 311-2 of the slider body 311 and an insertion hole SO into which the ball screw 320 is inserted is formed in the horizontal portion 311-1. .

The release preventing member 150 prevents the first plate 111 or the second plate 131 from moving in a direction different from the conveying direction. For this purpose, the release preventing member 150 needs to be fixed on the transfer unit 300.

9, a fixing hole 310-1 is formed in the slider 310 and a fixing hole 340-1 is formed in the rail 340. A fixing member (not shown) such as a bolt The slider 310 may be fixed to the rail 340 by passing through the fixing holes 310-1 and 340-1.

The rail 340 includes a rail main body 341 having a rectangular cross section and rail electrification grooves 342 formed on both sides of the rail main body 341 and formed at the same height as the load electromotive grooves 312. At this time, the ball retainer 330 is disposed in the space formed by the load electric rail groove 312 and the rail electric rail groove 342 and the space before the return air hole 313.

The ball retainer 330 is a hollow space formed by the load electromagnet grooves 312 formed on both side vertical portions 311-2 of the slider body 311 and the rail electromagnet grooves 342 of the rails 340, And the slider 310 is smoothly moved by the contact of the ball retainer 330 by contacting with the rail 340. [ The ball retainer 330 disposed in the ball circulation hole O moves in conjunction with the movement of the slider 310 and is introduced into the pre-return cavity 313 to be infinitely circulated.

It is a well-known structure that the ball retainer 330 circulates through the slider 310, the rail 340, the ball circulation hole O and the pre-return hole 313 as described above. For example, 4619226, and redundant description and illustration thereof are omitted.

10 to 15, the ball retainer 330 includes a space formed by the load electric rail groove 312 and the rail electric rail groove 342, that is, the ball circulation hole O and the return pre-groove 313, A first connecting portion 332 and a second connecting portion 333 provided between the ball B and the ball B and a second connecting portion 332 between the ball B and the ball B, And a holder 331 disposed on both sides of the ball B and attached to both sides of the ball B. The first connection portion 332 and the second connection portion 333 are disposed alternately and the holder 331 is disposed between the first connection portion 332 and the second connection portion 333. [

The holder 331 is in the form of a disk, and a portion of the holder 331 contacting the ball B is recessed at a specific curvature so that the ball B is closely contacted. The inner surface of the holder 331, that is, the portion contacting the ball B, has a conical center axis 331-1 having a conical shape whose diameter decreases toward the ball B direction. The rotation center axis 331-1 is inserted into the ball B to help the ball B rotate smoothly.

The first connection portion 332 is recessed in the longitudinal direction so that the ball B is in contact with the first connection portion 332. In addition, the second connection part 333 connects the adjacent holders 331, and is formed in a bar shape and separated at regular intervals. A coil spring portion 334 is disposed between the separated second connection portions 333 in the longitudinal direction. That is, as described above, the ball retainer 330 moves through the spaces formed by the load electrification grooves 312 and the rail electrifying grooves 342, that is, through the space of the ball circulation hole O and the pre- do. The distance between the ball B and the ball B may increase or decrease while the ball retainer 330 moves. The coil spring portion 334 absorbs the fluctuation of the interval between the ball B and the ball B to help smooth movement of the ball retainer 330.

A first folding spring portion 335 and a second folding spring portion 336 are spaced apart from each other by a predetermined distance in the width direction of the ball B in a space between the balls B in which the coil spring portion 334 is installed, As shown in Fig.

The first bending spring portion 335 includes a first bar-shaped penetrating portion 335-A penetrating the ball B downward and a second penetrating portion 335-E penetrating upward the ball B adjacent to the ball B ). A shape irregular in the up-and-down direction is formed between the first through-hole 335-A and the second through-hole 335-E.

That is, a first horizontal portion 335-1 which is bent in the horizontal direction at the lower end of the first penetration portion 335-A and a second horizontal portion 335-1 which is bent upward at the end of the first horizontal portion 335-1 A second horizontal portion 335-3 bent in the direction of the adjacent ball B at the upper end of the vertical portion 335-2 and the first vertical portion 335-2, -3) and a third horizontal part 332-4 which is bent in the horizontal direction in the direction of the adjacent ball B at the lower end of the second vertical part 335-4, The third vertical part 335-6 and the third vertical part 335-6 which are upwardly bent from the end of the third horizontal part 335-5 in the direction of the adjacent ball B, A fourth horizontal portion 335-7 bent in the direction of the adjacent ball B from the upper end of the fourth horizontal portion 335-7 and a lower end bent in the direction of the adjacent ball B of the fourth horizontal portion 335-7 (B) adjacent to the fourth vertical part (335-8) and the lower end of the fourth vertical part (335-8) A fifth horizontal part 335-9 bent in the horizontal direction and an upwardly curved and adjacent ball B at the end of the fifth horizontal part 335-9 in the direction of the adjacent ball B, And a second penetrating portion 335-E penetrating the through-hole. Between the first through-hole 335-A and the second through-hole 335-E, as described above, so as to cancel the vibration when the ball B vibrates.

The second bending spring portion 336 has the same shape as the first bending spring portion 335, but is symmetrical in the vertical direction.

13, the first penetration portion 335-A of the first folding spring portion 335 is disposed to penetrate the ball B disposed on the left side in the figure in the downward direction in the figure, The second penetration portion 336-E of the two folding spring portion 336 is arranged to penetrate the ball B in the upward direction in the figure. The ball B disposed on the right side in the drawing is arranged so that the second penetration portion 335-E of the first bending spring portion 335 passes upward and the first penetration portion 335-E of the second bending spring portion 336 And the penetrating portion 336-A is arranged to penetrate downward.

The vibration applied to the ball B by the first bending spring portion 335 and the second bending spring portion 336 as described above is attenuated.

The first bending spring portion 335 and the second bending spring portion 336 have a vertically irregular shape as described above, and the first bending spring portion 335 and the second bending spring portion 336 are formed in the same shape, A first fixing plate 337 and a second fixing plate 338 so as to be stably maintained.

The first fixing plate 337 is installed on the lower side of the first bending spring portion 335 and the second fixing plate 338 is provided on the upper side of the second bending spring portion 336.

The first fixing plate 337 includes a first fixing plate main body 337-1 in the form of a plate and a central slot 337-2 formed in the center of the first fixing plate main body 337-1, And a first side slot 337-3 and a second side slot 337-4 formed on both sides of the first fixing plate main body 337-1. The third horizontal portion 335-5 of the first folding spring portion 335 is inserted into the central slot 337-2 of the first fixing plate 337 and the third horizontal portion 335-5 is inserted into the first lateral slot 337-3 The first vertical part 335-2 and the first horizontal part 335-1 are inserted and the second vertical part 335-8 and the fifth horizontal part 335-1 are inserted into the second side slot 337-4, (335-9) is inserted. That is, the third horizontal portion 335-5, the first vertical portion 335-2, the first horizontal portion 335-1, and the fourth vertical portion 335-8 are formed on the first fixing plate 337, And the fifth horizontal portion 335-9 are inserted so that the uneven shape maintains a stable posture.

The second fixing plate 338 has a shape similar to that of the first fixing plate 337. That is, the second fixing plate 338 includes a second fixing plate main body 338-1 having a plate shape and a central slot 338-1 having an open shape elongated in the longitudinal direction at the center of the second fixing plate main body 338-1. 2 and a first side slot 338-3 and a second side slot 338-4 formed on both sides of the second fixing plate main body 338-1. The third horizontal portion 336-5 of the second folding spring portion 336 is inserted into the central slot 338-2 of the second fixing plate 338, The first vertical part 336-2 and the first horizontal part 336-1 are inserted into the second side slot 337-4 and the fourth vertical part 336-8 and the fifth horizontal part 336-1 are inserted into the second side slot 337-4. 336-9 are inserted to allow the second bending spring portion 336 to maintain a stable posture.

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. . Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

110: first uncoiler 111: first plate
130: second uncoiler 131: second plate 150:
151: a plurality of upper rollers 153: a plurality of lower rollers
160: Feed guiding part 161: Guiding roller
163: roller connecting portion 170: welded portion
190: mold part
210: Third Uncoiler 211: Third plate
300: feeder 310: slider
311: Slider main body 312: Load electric pole groove
313: before returning to main body 320: ball screw
330: ball retainer 331: holder
332: first connection part 333: second connection part
334: coil spring part 335: first bending spring part
336: second bending spring portion 337: first fixing plate
338: second fixing plate

Claims (9)

A first uncoiler 110 to which the first plate 111 is wound;
A second uncoiler 130 to which the second plate 131 is wound;
A feeding unit 150 for feeding the first and second plates 111 and 131 overlapping the first plate 111 and the second plate 131;
A welding part 170 transferred from the feeding part 150 to weld the first and second plates 111 and 131 overlapping with each other; And
And a mold part (190) for pressing the first and second plates (111, 131) welded,
The feeding part 150 prevents the side surfaces of the first and second plates 111 and 131 from being separated when the first and second plates 111 and 131 are drawn out from the feeding part 150 in a state where the first and second plates 111 and 131 overlap each other And a release preventing member 155,
Further comprising a transfer unit (300) provided on the table (T) for transferring the release preventing member (155)
The transfer unit 300 includes a rail 340 disposed on the table T and disposed in a direction toward the first or second plate 111 or 131 and a movable rail 340 coupled to the rail 340, A slider 310 to which the member 155 is fixed, a ball screw 320 screwed to the slider 310 and disposed in the direction of the rail 340 and a driving unit M for driving the ball screw 320, / RTI >
The slider 310 includes a slider main body 311 having a U shape and receiving the rail 340 therein and a load electromagnetism groove 311-2 formed on the inner side surfaces of both vertical portions 311-2 of the slider body 311, (312), and a pre-return cavity (313) formed as an empty space in a thickness portion of the both side vertical portions (311-2)
The rail 340 includes a rail main body 341 having a rectangular cross section and a rail electrification groove 342 formed on both sides of the rail main body 341 and formed at the same height as the load main groove 312,
The ball retainer 330 is disposed in the space formed by the load electric rail groove 312 and the rail electric rail groove 342 and the space before the return hole 313,
The ball retainer 330 includes a plurality of balls B that move through spaces formed by the load electromagnet grooves 312 and the rail electrified grooves 342 and a plurality of balls B that are provided between the balls B and the ball B A first connecting portion 332 and a second connecting portion 333 and a holder 331 disposed on both sides of the moving direction of the ball B and attached to both sides of the ball B,
The first connection part 332 and the second connection part 333 are alternately arranged and the holder 331 is disposed between the first connection part 332 and the second connection part 333,
The first connection portion 332 is recessed at both ends in the longitudinal direction so that the ball B is in contact with the second connection portion 333 and the second connection portion 333 is connected between the adjacent holders 331. The first connection portion 332 is bar-
A coil spring portion 334 is disposed between the separated second connection portions 333 in the longitudinal direction,
A first folding spring portion 335 and a second folding spring portion 336 are spaced apart from each other by a predetermined distance in the width direction of the ball B in a space between the balls B in which the coil spring portion 334 is installed, So as to have a shape symmetrical to each other. The method according to claim 1,
The first bending spring portion 335 includes a first bar-shaped penetrating portion 335-A penetrating the ball B downward and a second penetrating portion 335-E penetrating upward the ball B adjacent to the ball B , And a vertically irregular shape is formed between the first through-hole 335-A and the second through-hole 335-E,
A first horizontal portion 335-1 which is bent in the horizontal direction at a lower end of the first penetration portion 335-A and a second vertical portion 335-1 which is bent upward at an end of the first horizontal portion 335-1; A second horizontal portion 335-3 which is horizontally bent in the direction of the adjacent ball B at the upper end of the first vertical portion 335-2 and the second horizontal portion 335-3 which is bent in the direction of the adjacent ball B, And a third horizontal portion 335-4 bent in the horizontal direction in the direction of the adjacent ball B at the lower end of the second vertical portion 335-4, -5) and a third vertical part 335-6 which is upwardly bent at an end of the third horizontal part 335-5 in the direction of the adjacent ball B and a second vertical part 334-6 which is bent upward at the upper end of the third vertical part 335-6 A fourth horizontal part 335-7 bent in the horizontal direction in the direction of the adjacent ball B in the fourth horizontal part 335-7 and a fourth horizontal part 335-7 bent in the downward direction in the direction of the adjacent ball B in the fourth horizontal part 335-7, In the direction of the ball B adjacent to the vertical part 335-8 and the lower end of the fourth vertical part 335-8 A fifth horizontal portion 335-9 bent in the horizontal direction by the first horizontal portion 335-9 and a second horizontal portion 335-9 extending upwardly from the adjacent end in the direction of the ball B, And a second penetrating portion (335-E)
The second bending spring portion 336 is symmetrical with the first bending spring portion 335, but is symmetrical in the vertical direction. 3. The method of claim 2,
The first bending spring portion 335 and the second bending sparring portion 336 have a vertically irregular shape as described above and the first bending spring portion 335 and the second bending spur portion 336 are stable A first fixing plate 337 and a second fixing plate 338,
The first fixing plate 337 is installed on the lower side of the first bending spring portion 335 and the second fixing plate 338 is provided on the upper side of the second bending spring portion 336,
The first fixing plate 337 includes a first fixing plate main body 337-1 in the form of a plate and a central slot 337-2 formed in the center of the first fixing plate main body 337-1, And a first side slot 337-3 and a second side slot 337-4 formed on both sides of the first fixing plate main body 337-1,
The third horizontal portion 335-5 of the first folding spring portion 335 is inserted into the central slot 337-2 of the first fixing plate 337 and the third horizontal portion 335-5 is inserted into the first lateral slot 337-3 The first vertical part 335-2 and the first horizontal part 335-1 are inserted and the second vertical part 335-8 and the fifth horizontal part 335-1 are inserted into the second side slot 337-4, (335-9) is inserted,
The second fixing plate 338 includes a second fixing plate main body 338-1 having a plate shape and a central slot 338-2 having an open shape elongated in the longitudinal direction at the center of the second fixing plate main body 338-1. And a first side slot 338-3 and a second side slot 338-4 formed on both sides of the second fixing plate main body 338-1,
The third horizontal portion 336-5 of the second folding spring portion 336 is inserted into the central slot 338-2 of the second fixing plate 338, The first vertical part 336-2 and the first horizontal part 336-1 are inserted and the second vertical part 336-8 and the fifth horizontal part 336-1 are inserted into the second side slot 337-4. -9) is inserted. The method according to claim 1,
The feeding unit 150 includes a plurality of upper rollers 151 and a plurality of lower rollers 153,
Wherein the first and second plates (111, 131) pass between the upper roller (151) and the lower roller (153) in a mutually overlapping state.
5. The method of claim 4,
The diameter of the plurality of upper rollers 151 is equal to each other, and a virtual extension line connecting the central axes of the upper rollers 151 is a straight line,
Wherein a diameter of the plurality of lower rollers (153) is equal to each other, and a virtual extension line connecting the central axes of the plurality of lower rollers (153) is a straight line.
3. The method according to any one of claims 1 to 2,
Wherein the welding portion (170) performs spot welding with respect to the first and second plates (111, 131) which are overlapped with each other.
3. The method according to any one of claims 1 to 2,
Further comprising a third uncoiler (210) around which the third plate (211) is wound,
The feeding unit 150 moves the third plate 211 provided in the third uncoiler 210 to overlap with the first and second plates 111 and 131,
The welding portion 170 may weld the third plate member 211 to the first and second plate members 111 and 131,
Wherein the mold part (190) presses the third plate material (211) together with the first and second plates (111, 131).
3. The method according to any one of claims 1 to 2,
Wherein the first uncoiler (110) and the second uncoiler (130) are arranged horizontally in a line.
A plate material processing method using the plate material processing apparatus according to any one of claims 1 to 2,
Releasing the first and second plates (111, 131) wound on the first and second uncoilers (110, 130), respectively;
Overlapping the first plate (111) and the second plate (131);
Welding the overlapped first and second plates (111, 131) to each other; And
And pressing the first and second plates (111, 131) welded to each other.

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