KR101412240B1 - laminating method of partially insulating layer on the metal sheet for shield can and device thereof - Google Patents

Abstract

The present invention relates to a metal sheet for a shield can and a processing method thereof and, more particularly, to a metal sheet for a shield can and a processing method thereof, capable of simply forming a plurality of insulation units with the same intervals by cutting an insulation layer which is temporarily bonded on the metal sheet and removing a separation unit and preventing defects by performing a cutting operation at an accurate position.

Description

[0001] The present invention relates to a method and apparatus for partially laminating an insulating layer on a metal plate for a shield can,

More particularly, the present invention relates to a method and an apparatus for partially joining an insulating layer to a metal plate for a shield can, and more particularly, To a method and an apparatus for partially joining an insulating layer to a metal plate for a shield can which is capable of easily forming an insulating portion of the shield can and cutting at an accurate position to prevent defects.

BACKGROUND ART [0002] An electronic apparatus includes a printed circuit board (PCB), which is one of the core components, and various elements mounted on the printed circuit board. The circuit devices include electromagnetic interference (EMI) EMI), which may cause malfunction of the electronic device due to electromagnetic waves.

It is a phenomenon that energy moves in the form of sinusoidal wave while the electromagnetic wave electric field and the magnetic field are interlocked with each other. It is used for electronic devices such as radio communication and radar, but it causes malfunction of electronic and communication devices as well as harmful effects on human body .

The electric field is generated by the voltage and is easily disturbed by distances or obstacles such as trees, while the magnetic field is generated by the electric current and is in inverse proportion to the distance but not easily shielded.

As a result, electronic components such as elements mounted on a printed circuit board inside an electronic device are covered with a shield can made of a metal plate to shield EMI generated from the interference source, So that it does not affect the operation of the apparatus.

However, in this case, the metal shield can also come into contact with the densely integrated elements. If the metal shield can make contact with an internal element, it may cause electric short-circuit or damage or malfunction due to induction phenomenon. Therefore, it is necessary to prevent contact with the internal element as much as possible. And insulation is maintained through an additional method such as coating.

At present, a method currently used to mass-produce such shield can repeatedly and uniformly is a press method using a die.

That is, when a thin and long iron plate is rolled up and placed in a progressive metal mold and then fed into the mold by feeding the feeder, the press is vertically moved to fold the product in a predetermined shape and holes are drilled to complete the shape of the shield can . Then, a separate coating or coating process is performed to form a certain type of insulation part in the shape of the shield can, and the insulation tape is attached to the parts by hand or by using a machine equipped with a customized jig, To complete the shield can.

However, this method is not only troublesome in the process of manufacturing the insulating part after press working, but also causes a rise in cost and a failure due to a low yield.

In order to solve this problem, a press working method in which a metal plate on which an insulating layer has been formed is wound in a roll form and fed to the die through a feeder is applied. On the other hand, in the case of the shield can, the surface to be soldered to the substrate must be prevented from being formed with an insulating layer. However, if the insulating layer is formed by the conventional laminating or painting method, the insulating layer must be removed through a separate process after the pressing process, which complicates the process and increases manufacturing time and cost.

Korean Patent No. 0729708 (published on June 19, 2007)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a metal plate, And a method and an apparatus for partially joining an insulating layer to a metal plate material for a shield can that can be formed.

It is another object of the present invention to provide a method and apparatus for partially laminating an insulating layer on a metal plate for shield can which is cut at an accurate position through a cutting position confirmation hole and position adjusting means formed on a metal plate to prevent defects .

It is another object of the present invention to provide a method of manufacturing a shield can made of a metal plate for shield can, which is capable of simplifying a shield can processing step, by partially laminating an insulating layer to a metal plate, A method and an apparatus.

To this end, a method of partially laminating an insulating layer on a metal plate for a shield can according to the present invention is a method of machining a metal plate for a shield can to partially join an insulating layer to a metal plate used for a shield can, A step S1 of mounting the metal plate material and the insulating layer to the first and second feed rollers, feeding the metal plate and the insulating layer to the first pressing rollers to bring them into contact with each other, cutting the insulated insulating layer with a cutting device Separating the separating portion into an insulating portion and a separating portion; separating the separating portion from the metal plate; and supplying the metal plate and the insulating portion to the heated second pressing roller and joining them.

The insulating layer of the method of partially laminating the insulating layer to the metal plate for shield can according to the present invention is made of a synthetic resin film, and the first pressing roller is heated at a temperature of 50 to 70 캜, Is pressurized.

The second pressing roller, which is a method of partially laminating the insulating layer on the metal plate for a shield can according to the present invention, presses the metal plate and the insulating layer while being heated to 150 to 300 캜.

The insulating layer of the method of partially laminating the insulating layer on the metal plate for shield can according to the present invention includes a synthetic resin film and a pressure-sensitive adhesive formed on one side of the synthetic resin film.

In addition, a number of cut positioning holes in both side edges on the basis of the wound metal sheet material is the direction of movement of the step S1 of the method of partially laminating a shield insulating layer on cans the metal plate according to the invention is formed, in cutting the cutting device And a position adjusting means for adjusting the position of the lens .

The separator separated in step S4 of the method of partially laminating the insulating layer on the metal plate for shield can according to the present invention is wound on a first collecting roller having a clutch, And is wound on the second collection roller formed.

The metal plate material and the insulating layer continuously supplied through the steps S1 to S5 of the method of partially laminating the insulating layer to the metal plate for a shield can according to the present invention maintain the tension by the tension holding means, The first and second feed rollers being driven by the first and second feed rollers so that the first and second feed rollers are wound uniformly on the first and second feed rollers, And a buffer device provided between the first collection roller and the second collection roller.

An apparatus for partially joining an insulating layer to a metal plate for a shield can according to the present invention is an apparatus for partially joining an insulating layer to a metal plate used for a shield can, First and second feed rollers; A first pressing roller for continuously heating and pressing the metal plate material and the insulating layer supplied from the first and second feeding rollers to be brought into contact with each other; A cutting device including a cutting blade installed to be able to move up and down so as to divide the insulated insulating layer into an insulating part and a separating part, and a plate installed at a lower part of the cutting blade; Position adjusting means provided in the cutting device; A first collection roller for separating and recovering the cut separator from the metal plate; A second pressing roller for heating and pressing the metal plate and the insulating portion to join them together; And a second collecting roller for collecting the metal sheet material with the insulating part interposed therebetween, wherein the heating temperature of the second pressing roller is higher than the heating temperature of the first pressing roller.

In the method of partially laminating the insulating layer to the metal plate for shield can according to the present invention having the above-described structure, since the cutting and separating portions are removed while the insulating layer is in contact with the metal plate, There is an effect that it can be formed simply.

In addition, the method of partially joining the insulating layer to the metal plate for shield can according to the present invention has an effect that cutting is performed at an accurate position through a cutting position confirmation hole and position adjusting means formed on a metal plate, thereby preventing defects.

The method of partially laminating the insulating layer on the metal plate for a shield can according to the present invention is a method of partially shielding the insulating layer on the metal plate for a shield can according to the present invention because the insulating portion is previously joined to the metal plate through a separate process different from the shield can press working, .

1 is a process diagram showing a method of partially laminating an insulating layer on a metal plate for a shield can according to the present invention.
2 is a conceptual view schematically showing an apparatus for partially joining an insulating layer to a metal plate for a shield can according to the present invention.
FIG. 3 is a perspective view showing each step of a method of partially laminating an insulating layer on a metal plate for a shield can according to the present invention.
4A and 4B are cross-sectional views showing the position adjusting means according to the present invention.

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

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, the terms described below are defined in consideration of the functions of the present invention, and these may vary depending on the intention of the user, the operator, or the precedent. Therefore, the definition should be based on the contents throughout this specification.

FIG. 1 is a process diagram showing a method of partially laminating an insulating layer on a metal plate for a shield can according to the present invention, FIG. 2 is a conceptual diagram schematically showing a method of partially laminating an insulating layer on a metal plate according to the present invention And FIG. 3 is a perspective view showing each step of a method of partially laminating an insulating layer on a metal plate according to the present invention.

1 to 3, an apparatus for partially joining an insulating layer to a metal plate for a shield can according to the present invention includes first and second feeding rollers 10 and 11, first and second pressing rollers 20 and 20, 21, a cutting device 30, and first and second feed rollers 40, 41.

At least one first guide roller 50 is provided between the first feeding roller 10 and the first pressing roller 20 and between the first pressing roller 20 and the cutting device 30, One second guide roller 51 is provided.

A third guide roller 52 is provided between the cutting device 30 and the second collection roller 41. A fourth guide roller 53 is provided between the third guide roller 52 and the second press roller 21, Is installed.

The metal plate 1 wound around the first feed roller 10 is pressed against the first press roller 20, the second guide roller 51, the cutting device 30, the third guide roller 52, 4 guide rollers 53 and second pressing rollers 21 in this order.

The insulating layer 3 wound around the second feeding roller 11 is wound around the first and second pressing rollers 50 and 51 while passing through the cutting device 30, (4) and a separating part (5), and is conveyed to the third guide roller (52). The separating portion 5 of the third guide roller 52 is conveyed to the first collecting roller 40 and the inserting portion 4 is conveyed to the fourth guide roller 53 ) And the second pressing roller 21 in this order, and is wound on the second collecting roller 41.

The first and second collecting rollers 40 and 41 serve as rotating shafts. The first collecting roller 40 and the second collecting roller 41 may be provided with clutch devices (not shown) for temporarily disconnecting or connecting rotational power. A braking device (not shown) is provided on each of the first supply roller 10 and the second supply roller 11 so that a metal plate or an insulating layer is interposed between the first collecting roller 40 and the second collecting roller 41, This allows you to maintain tension.

A buffer device 70 provided between the first pressing roller 20 and the cutting device 30 or between the cutting device 30 and the second collecting roller 41 may be installed.

Specifically, the buffer device 70 is capable of correcting the time difference between the cutting timing and the second pressing roller, and by applying tension to the metal plate, the buffer device 70 serves to allow the second collecting roller to be wound.

Hereinafter, a method of partially laminating an insulating layer on a metal plate according to the present invention will be described in detail with reference to the accompanying drawings.

The method of partially laminating the insulating layer on the metal plate according to the present invention includes a method of partially laminating the metal plate 1 and the insulating layer 3 rolled up in the form of rolls to S1 A step S2 of feeding the metal sheet 1 and the insulating layer 3 to the first pressing roller 20 and bringing the insulating sheet 3 into contact with the insulating layer 3; A step S4 of separating the separating part 5 from the metal plate 1 and a step of separating the metal plate 1 and the insulating part 4 from each other, To the second press roller (21), and joining the second press roller (21).

It is preferable that a plurality of cutting position confirmation holes 2 are formed on both sides of the wound metal plate 1 in the step S1.

The cutting position confirmation holes 2 are formed at regular intervals, and the position adjusting means recognizes the cutting position confirmation holes 2 by a position adjusting means to be described later and adjusts the cutting position so that accurate cutting can be performed.

The insulating layer 3 may be formed of a rolled film with the metal plate 1, and is preferably formed to have a thickness required for insulation, for example, 100 to 300 탆.

The insulating layer 3 may be a synthetic resin film alone or an FEP film (fluorethylenepropylene) which can be used at a high temperature. The insulating layer may be formed by forming a pressure-sensitive adhesive on one side of the synthetic resin film.

Examples of the pressure-sensitive adhesive include acrylic, silicone, and hotmelt-based adhesives.

The step S2 is a step of inserting the insulating layer 3 on the metal plate 1 so that the wound metal plate 1 and the insulating layer 3 are successively loosened and supplied to the first pressing roller 20 do. At this time, the metal plate 1 is superimposed and supplied with the insulating layer 3 thereon.

The first pressing roller 20 can be pressed while being heated to the minimum temperature at which the insulating layer 3 can be bonded.

When the pressure sensitive adhesive is not formed on the insulating layer 3, the pressure can be applied in a state of being heated to a predetermined temperature. In the case where the pressure sensitive adhesive is formed, the pressure sensitive adhesive can be pressed in a non-heated state.

When the insulating layer on which the pressure-sensitive adhesive is not formed is used, the first pressing roller is preferably heated to a predetermined temperature, for example, 50 to 70 ° C. If the first pressing roller is heated to less than 50 캜, it can not sufficiently be folded, and a gap may be formed between the metal plate and the insulating layer during the process of transferring to the step S 3, If the heating is performed, the heat-sealing is performed beyond the bonded state, and the separating unit can not be easily separated in the step S4.

In step S3, the insulation layer 3 is cut by the cutting device 30 so as to be divided into the insulation part 4 and the separation part 5.

The cutting device 30 includes a plate 35 on which the metal plate 1 is placed and a cutting blade 34 which is installed on the upper portion of the plate 35 so as to be able to cut only the insulating layer 3, (31).

The cutting edge 31 is vertically moved up and down in correspondence with the cutting position confirmation hole 2 and cuts the insulating layer 3 placed on the plate 35.

Although only one of the cutting blades is shown in the drawing, this is merely an example, and a plurality of cutting blades can be arranged at the predetermined intervals to increase the cutting efficiency.

After the insulating layer 3 is cut in the cutting device 30, compressed air is sprayed to the insulating layer 3 or the metal plate using the air blower 80 to remove the burrs generated during cutting can do.

In the step S4, the insulating part 4 is placed on the metal plate 1, and only the separating part 5 is separated from the metal plate 1 and is wound on the first collecting roller 40.

Specifically, the separating unit 5 having passed through the cutting device 30 is fed to the first guide roller 52 and the first collecting roller 40 located at the front upper portion of the third guide roller 52, And is separated from the metal plate 1 to be conveyed.

The step S5 is a step of heating and pressing the insulation part 4 to be adhered to the metal plate 1 firmly.

The second pressing roller 21 presses the metal plate 1 having the insulating portion 4 bonded thereto while being heated to 150 to 300 ° C.

The second pressing roller 21 may be composed of at least one pair, preferably two pairs. For example, in the case of two pairs, the first pressing roller 21 presses the sheet in a state of being heated to 180 to 280 ° C, and then the sheet is heated to 200 to 280 ° C in the second pressing roller 21a By additionally pressing, the metal plate 1 and the insulating portion 4 can be more firmly joined together.

The lapped metal plate 1 and the insulating portion 4 are transported to the second collection roller 41 and wound.

4A and 4B are sectional views showing the position adjusting means according to the present invention.

The position adjusting means serves to adjust the position of the cutting edge or the metal plate so that the insulating layer can be cut at regular intervals.

4A, the position adjusting means includes a plate 35 having a hole 351 formed thereon, a vision camera 37 provided at a lower portion of the plate 35, And may include a hole 310.

The vision camera 37 recognizes the vision reference hole 310 formed on the cutting edge 31 through the hole 351 and uses the coordinate of the recognized vision reference hole 310 as a reference coordinate. When the metal plate material to be cut is transferred on the plate, the positional deviation of the cutting position confirmation hole 2 with respect to the reference coordinates is detected in comparison with the cutting position confirmation hole 2 of the metal plate and the vision reference hole 310 , And horizontally moves the vision camera 37 by the positional deviation. After the position of the cutting edge is adjusted, the metal plate is fixed through the air suction device (not shown) formed on the plate, and then cut.

Referring to FIG. 4B, the position adjusting means according to the present invention may include a plate 35, a position adjusting pin 353 mounted on the plate so as to be able to move up and down, and the cutting position confirming hole 2.

It is preferable that the position adjusting pin 353 has a sharp pin shape toward the upper end.

When the metal plate to be cut is transferred onto the plate, the position adjusting pin 353 located in a lower region of the cutting position confirmation hole 2 of the metal plate is lifted. At this time, when the pointed upper end of the position adjusting pin 353 is hooked on only a part of the cutting position confirming hole 2, the metal plate 1 is moved and fixed to the correct position while being inserted.

As described above, the method of partially joining the insulating layer to the metal plate for shield can according to the present invention is advantageous in that the shield can is simplified by forming a plurality of insulating portions on the metal plate.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities. Accordingly, the scope of the present invention should be construed as being limited to the embodiments described, and it is intended that the scope of the present invention encompasses not only the following claims, but also equivalents thereto.

1: Metal plate 2: Cutting position confirmation hole
3: insulating layer 4: insulating portion
5: separator 10: first feed roller
11: second supply roller 20: first pressing roller
21: second pressing roller 30: cutting device
31: Cutting blade
35: plate 40: first collection roller
41: second collection roller 50: first guide roller
51: second guide roller 52: third guide roller
53: fourth guide roller 70: buffer device
80: Air blower

Claims (8)

A step S1 of mounting the metal plate material wound in a roll form and the insulating layer to the first and second feed rollers, respectively;
(S2) of supplying all of the metal plate and the insulating layer to the first pressing roller so as to entirely contact the first and second pressing rollers;
Cutting the insulated insulating layer with a cutting device to divide the insulating layer into an insulating portion and a separating portion;
(S4) winding the metal plate material wound on the first collection roller, the metal plate material being wound on the second collection roller, and separating the separator from the metal plate material; And
(S5) of supplying the metal sheet material and the insulating portion to the heated second pressing roller and joining them;
Wherein the insulating layer is partially joined to the metal plate for a shield can. The method according to claim 1,
Wherein the insulating layer is made of a synthetic resin film,
Wherein the first pressing roller presses the metal plate and the insulating layer in a state where the first pressing roller is heated to 50 to 70 占 폚. The method according to claim 1,
Wherein the second pressing roller presses the metal plate and the insulating layer in a state where the second pressing roller is heated to 150 to 300 占 폚. The method according to claim 1,
Wherein the insulating layer comprises a synthetic resin film and a pressure-sensitive adhesive formed on one side of the synthetic resin film, wherein the insulating layer is partly joined to the metal plate for shield can. The method according to claim 1,
A plurality of cutting position confirmation holes are formed on both side edges of the metal plate material wound in step S1 on the basis of the traveling direction,
Wherein the cutting device is provided with position adjusting means capable of adjusting the cutting position. The method according to claim 1,
And a clutch is formed on the first and second number of rollers. The method of partially joining an insulating layer to a metal plate for a shield can. The method according to claim 6,
The metal plate and the insulating layer continuously supplied through the steps S1 to S5 are maintained in tension by the tension holding means so as to be uniformly wound on the first and second collecting rollers,
Wherein the tension holding means comprises a clutch of the first and second collection rollers, a brake provided on the first and second supply rollers, a buffer provided between the first compression roller and the cutting device or between the cutting device and the second collection roller Wherein the insulating layer is partly joined to the metal plate for a shield can. First and second feed rollers on which the metal plate and the insulating layer wound in a roll shape are respectively mounted;
A first pressing roller for continuously heating and pressing the metal plate material and the insulating layer supplied from the first and second feeding rollers to be brought into contact with each other;
A cutting blade installed to be able to move up and down so as to divide the insulated insulating layer into an insulating portion and a separating portion; and a plate provided at a lower portion of the cutting blade;
Position adjusting means provided in the cutting device;
A first collection roller for separating and recovering the cut separator from the metal plate;
A second pressing roller for heating and pressing the metal plate and the insulating portion to join them together;
And a second collecting roller for collecting the metal plate joined with the insulating part,
Wherein the heating temperature of the second pressing roller is higher than the heating temperature of the first pressing roller.

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