KR102017844B1 - Method for manufacturing door step by etching and mold - Google Patents

Abstract

The present invention relates to a method for manufacturing a door side-step by etching and a mold, capable of preventing damage by scratches. According to the present invention, the method for manufacturing a door side-step by etching and a mold comprises: a washing step (S1) of preparing a stainless steel plate (1) and removing a contaminant stuck on the plate (1); a printing step (S2) of coating a region except a pattern region (25) in the lower surface (4) of the plate (1) to form a printing layer (21); an exposure step (S3) of irradiating an ultraviolet ray on the lower surface (4) of the plate (1) to cure the printing layer (21); an etching step (S4) of forming an etching groove (7); an exfoliation step (S5) of exfoliating the printing layer (21); and a molding step (S6).

Description

Method for manufacturing doorside step by etching and mold {METHOD FOR MANUFACTURING DOOR STEP BY ETCHING AND MOLD}

The present invention relates to a method for manufacturing a doorside step by etching and a mold, and more particularly, by etching the pattern shape on the lower surface of the plate and then physically pushing the pattern shape upwards so that the pattern protrudes on the upper surface of the plate. The present invention relates to a method for manufacturing a doorside step by etching and mold, characterized in that the phenomenon that the upper surface is corroded can be prevented.

In general, the door side step 10 is formed in a plate shape, it is attached to the bottom of the frame in which the door is accommodated in the vehicle is manufactured so that the passenger can step on the foot. The door side step 10 is embossed with a pattern (3) on the upper surface to match the design of the vehicle, mainly the brand of the vehicle manufacturer is displayed.

Hereinafter, the manufacturing method of the doorside step 10 according to the background art together with the accompanying drawings will be described.

1 is a perspective view illustrating a method of manufacturing a doorside step according to the background art, in which an upper surface of a flat plate is etched by etching to form a pattern protruding upward.

After having the plate 1 made of stainless steel, a washing step S1 is performed to remove contaminants from the plate 1.

Next, a printing step of forming a printed layer by coating a pattern of letters or numbers or various shapes on the upper surface of the flat plate (1). UV coating (Ultraviolet Cure Ink) is used as the material of the coating is a photosensitive resin that is cured by ultraviolet rays. At this time, the convexly protruding part of the pattern is coated and the part to be etched is not coated.

Next, an exposure step of curing the printed layer by irradiating ultraviolet rays above the flat plate 1 is performed.

Next, an etching solution is sprayed onto the upper surface of the flat plate 1 to etch regions other than the printed layer, thereby forming an etching step in which the pattern 3 is embossed.

Next, after the plate 3 is washed to remove the etching solution, a peeling step of peeling off the printed layer is performed.

Next, a press step of cutting the rim with a press is made so that the flat plate 3 has a designed shape.

Hereinafter, the problems of the manufacturing method together with the accompanying drawings are as follows.

FIG. 2 illustrates a corrosion process of a doorside step formed by a method of manufacturing a doorside step according to the background art, in which (a) shows an etching surface formed on an upper surface of a flat plate, and (b) shows that the etching surface is corroded. It is a local cross-sectional view showing what has become.

In general, the flat plate 1 made of stainless steel has a passivation layer 5 formed on the upper and lower surfaces thereof, thereby improving wear resistance and corrosion resistance. The passivation layer 5 is a layer formed by combining chromium contained in stainless steel with oxygen in the air, and it is generally known that stainless steel, which is known as a non-corrosion metal, also corrodes when the passivation layer 5 is peeled off.

Accordingly, when the etching surface 7 is formed by etching regions other than the pattern 3 to emboss the pattern 3 on the upper surface of the flat plate 1, the upper surface of the pattern 3 is passive as shown in FIG. 2. The layer 5 remains and the etching surface 7 does not. In this state, when the occupant of the vehicle bumps into the foot, sand or dirt on the shoe rubs on the etching surface 7, causing scratches, thereby deteriorating the appearance. In addition, the etching surface (7) is corroded due to the water on the occupant's shoes, if the stepped on the shoes with sea water on the beach will corrode more quickly. Therefore, the iron oxide due to corrosion is formed on the etching surface (7), not only the appearance is deteriorated, there is a problem that is severe enough to damage the perforation occurs. Each of these problems causes the image of the vehicle to drop, causing the vehicle to lose its reliability.

Of course, in order to solve these problems, the pattern may be formed by press working without etching, but in this case, there was a problem that it is impossible to form a fine pattern. As an example, the flat plate 1 is made of a stainless steel material having a thickness of 1 mm to 2 mm. However, due to the strength of the stainless steel and the thickness, the flat plate 1 could not display a fine and delicate pattern.

Korean Patent Publication No. 10-2018-0106167 (October 01, 2018)

Through the manufacturing method of the door side step by etching and the mold according to the present invention is to solve the following matters.

First, since the etching surface is formed, the passivation layer disappears to solve the scratch phenomenon.

Second, since the etching surface is formed, the passivation layer disappears to solve the corrosion phenomenon.

Third, it is possible to form a pattern of a delicate design without using an etching technique in the final molding of the pattern.

In order to solve the said subject, the manufacturing method of the doorside step by the etching and metal mold by this invention consists of the following processes.

A washing step of removing contaminants on the plate after having a plate made of stainless steel, and after the washing step, a printing step of forming a printing layer by coating an area except a pattern area on the bottom surface of the plate; After the printing step, an exposure step of curing the printed layer by irradiating UV light on the lower surface of the flat plate, and after the exposure step, by etching the spray on the lower surface of the flat plate so that the pattern region is etched to form an etching groove After the etching step, and after the etching step, to remove the etching liquid by washing the plate, the peeling step of peeling off the printed layer, and after the peeling step, by applying a force to the etching groove, the pattern is embossed Shaping and cutting the rim to the designed shape.

Looking at the first embodiment of the molding step is as follows.

A lower mold having an embossed portion inserted into the etch groove on an upper surface, an upper mold formed on a lower surface of the embossed portion inserted into the etching groove, and a cutter mounted around the inclined portion on the lower surface of the upper mold to cut the edge of the flat plate according to a design shape In the mold containing the blade,

A seating step of seating the flat plate on the upper portion of the lower mold such that the embossed portion is inserted into the etching groove; and after the seating step, the upper mold presses the lower mold so that the embossed portion pushes the etching groove into the indentation portion. A compression step of raising and cutting the edge of the plate, and after the compression step, a separation step of detaching the upper mold from the lower mold and lifting the plate from the lower mold, and after the detaching step And, the filling step of filling the molten filling in the etching groove of the lower mold.

Looking at the second embodiment of the molding step is as follows.

After the edge of the plate is cut into a design shape, a mold having a block shape in which an accommodating groove accommodating and matching is opened upward, a position and a shape of the etching groove correspond to a bottom surface of the accommodating groove, and the etching groove A molding groove having a larger size, a plate-shaped lid which closes the upper part of the mold, a shaft attached to a lower surface of the lid to pressurize the flat plate accommodated in the receiving groove, and penetrate the lid to receive water into the receiving groove. In the mold comprising a nipple for guiding the coupling, and coupling means for coupling the lid and the mold,

A cutting step of cutting the edge of the flat plate into a shape of a design; and, after the cutting step, a seating step of receiving the flat plate in an accommodating groove of the mold to face upward, and after the mounting step, Sealing the cover with the coupling means on top of the mold, and after the sealing step, the injection step of filling the water into the receiving groove by connecting a hose to the nipple and then singularly, after the injection step, A freezing step of freezing a mold to push the etch groove into the forming groove while the filled water is frozen, and after the freezing step, melting the frozen water and releasing the coupling means to release the cover. After, the separation step of lifting the flat plate from the mold, and after the separation step, the filling filling the molten filling in the etching groove to solidify Steps.

The method for producing a doorside step by etching and a mold according to the present invention can achieve the following effects by the above-mentioned solving means.

First, since the etching groove is formed on the lower surface of the plate and extrudes by applying a force to the etching groove, the upper surface of the plate and the passivation layer of the pattern are not damaged. Therefore, it is possible to prevent damage due to scratches and to prevent the phenomenon of being corroded by moisture or salt. Therefore, the problem of damaging the image of the mounted vehicle due to scratches and corrosion can be solved at once.

Second, the thickness of the plate corresponding to the etching groove by the etching groove is thinner than the thickness of the original plate. Therefore, the pattern can be easily formed when the etching groove is pushed out by applying a force. And delicate and complex patterns can be easily molded.

Third, when pushing the etching groove by the freezing of the water as in the second embodiment of the forming step, there is no need to separately manufacture the lower die formed with the embossed portion accommodated in the etching groove, there is a more convenient effect.

1 is a perspective view showing that the pattern protruding upward since the upper surface of the plate is etched by etching as a method of manufacturing a doorside step according to the background art.
FIG. 2 illustrates a corrosion process of a doorside step formed by a method of manufacturing a doorside step according to the background art, in which (a) shows an etching surface formed on an upper surface of a flat plate, and (b) shows that the etching surface is corroded. Local cross-sectional view showing what happened.
Figure 3 is a block diagram showing a method for producing a doorside step by etching and a mold according to the present invention.
Fig. 4 is a process diagram showing a printing step and an exposure step in three dimensions as a method for manufacturing a doorside step by etching and a mold according to the present invention.
5 is a process diagram of a method of manufacturing a doorside step by etching and a mold according to the present invention, three-dimensionally showing an etching step, a peeling step, and a molding step.
Figure 6 is a block diagram showing the process of the forming step according to the first embodiment in the method for manufacturing a doorside step by etching and a mold according to the present invention.
7 is a cross-sectional view illustrating a seating step, a compression step, and a detachment step of the molding step according to the first embodiment;
FIG. 8 is an enlarged view of a portion A of FIG. 7 in cross section; FIG.
9 is a process diagram showing in cross section a filling step made after the leaving step of FIG.
10 is a block diagram showing a process of the forming step according to the second embodiment in the method for producing a doorside step by etching and mold according to the present invention.
11 is a process chart showing a cutting step of the forming step according to the second embodiment in cross section;
12 is a cross-sectional view of a seating step made after the cutting step of FIG. 11 in cross section;
Figure 13 is a process diagram showing in cross section the injection step and the freezing step made after the seating step of Figure 12;
14 is a process diagram showing in section a separation step and a filling step made after the freezing step of FIG.

Hereinafter, various embodiments of the present disclosure will be described with reference to the accompanying drawings. However, this is not intended to limit the techniques described in this document to specific embodiments, but should be understood to cover various modifications, equivalents, and / or alternatives to the embodiments of this document. In connection with the description of the drawings, similar reference numerals may be used for similar components.

In addition, the expressions "first," "second," and the like used in this document may modify various components in any order and / or importance, and may distinguish one component from another. Used only and do not limit the components. For example, the 'first part' and the 'second part' may indicate different parts regardless of the order or importance. For example, without departing from the scope of rights described in this document, the first component may be called a second component, and similarly, the second component may be renamed to the first component.

Also, the terminology used herein is for the purpose of describing particular embodiments only and may not be intended to limit the scope of other embodiments. Singular expressions may include plural expressions unless the context clearly indicates otherwise. The terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art. Among the terms used in this document, terms defined in the general dictionary may be interpreted as having the same or similar meaning as the meaning in the context of the related art, and ideally or excessively formal meanings are not clearly defined in this document. Not interpreted as In some cases, even if terms are defined in the specification, they may not be interpreted to exclude embodiments of the present disclosure.

Hereinafter, the process of the manufacturing method of the doorside step by etching and the mold according to the present invention together with the accompanying drawings are as follows.

Figure 4 is a manufacturing method of the door side step by etching and the mold according to the present invention, a three-dimensional process diagram showing the printing step and the exposure step, Figure 5 is a manufacturing of the door side step by etching and the mold according to the present invention As a method, the etching step, the peeling step and the molding step will be described together as a process diagram in three dimensions.

After having the plate 1 made of stainless steel, a washing step S1 is performed to remove contaminants from the plate 1.

After the washing step S1, a printing step S2 is performed to form a print layer 21 by coating an area except the pattern area 25 on the lower surface 4 of the flat plate 1.

After the printing step S2, an exposure step S3 is performed to irradiate the lower surface 4 of the flat plate 1 to cure the printed layer 21.

After the exposure step S3 , an etching solution is sprayed onto the lower surface 4 of the flat plate 1 so that the pattern region 25 is etched, thereby forming an etching groove S4.

After the etching step (S4), after removing the etching solution by washing the flat plate 1, a peeling step (S5) is performed to peel off the printed layer 21.

After the peeling step (S5), by applying a force to the etching groove (7) is made a molding step (S6) so that the pattern (3) is represented by embossing and cutting the edge in the designed shape.

Looking at a more detailed embodiment of the manufacturing method according to the present invention as follows.

1. washing step (S1);

As shown in FIG. 1, after the plate 1 having a thickness of 1 to 2 mm is made of stainless steel, the contaminants on the plate 1 are removed. As an example, a general neutral detergent is immersed in a washing solution mixed with water at a volume ratio of 1: 5 for 30 minutes to 1 hour, and then wiped the surface of the plate 1 with a soft cloth to remove contaminants such as oil and dust.

2. printing step (S2);

As shown in FIG. 1, after the cleaning step S1, the printing layer 21 is formed by coating an area except the pattern area 25 in a state in which the lower surface 4 of the plate 1 faces upward. Step. The pattern area 25 is the same as the pattern 3 of the door side step, and is displayed in various shapes such as letters, numbers, pictures, and patterns, and mainly corresponds to a brand of an automobile manufacturer. The pattern area 25 is displayed oppositely as it appears when the pattern 3 is reflected on the mirror. Thus, the pattern 3 can later be seen correctly when embossed on the upper surface 2.

The printing layer 21 is coated with UV ink (Ultraviolet Cure Ink), a photosensitive resin that is cured by ultraviolet light. In addition, the UV ink may be applied by the silkscreen technique as an example. Silkscreen technology is known to those skilled in the art, so detailed description thereof will be omitted. At this time, the thickness of the printed layer 21 is 0.5mm ~ 1mm.

3. exposure step S3;

As shown in FIG. 4, after the printing step S2, ultraviolet rays are irradiated onto the lower surface 4 of the flat plate 1 to cure the printed layer 21. Ultraviolet rays having a wavelength range of 100 nm to 280 nm are illuminated for 5 to 15 minutes above the printed layer 21 to cure the printed layer S2.

4. etching step (S4);

As shown in FIG. 5, after the exposure step S3, an etching solution is sprayed onto the lower surface 4 of the flat plate 1 to etch the pattern region 25, thereby forming an etching groove 7. As an example, an etching solution prepared by mixing 10% (volume) of ferric chloride and 60% (volume) of water and 30% (volume) of hydrogen peroxide is sprayed on the pattern region 25. At this time, the depth of the etching groove 7 is adjusted to the injection amount and the injection time of the etching solution so that 1/2 ~ 1/3 of the thickness of the flat plate (1).

5. Peeling step (S5);

As shown in FIG. 5, after the etching step S4, the plate 1 is washed to remove the etching solution, and then the printing layer 21 is peeled off. As an example, the printing layer 21 is peeled off by rubbing the brush while spraying water on the lower surface of the flat plate 1. At this time, of course, the roughness and the friction time of the brush is adjusted so that the passivation layer 5 of the flat plate 1 does not peel off.

6. molding step (S6);

As shown in FIG. 5, after the peeling step S5, a force is applied to the etching groove 7 so that the pattern 3 is embossed and the edge is cut into a designed shape. In this case, since the etching groove 7 is a groove formed in the lower surface 4 of the flat plate 1, the pattern 3 is embossed on the upper surface 2 when a force is applied. If the force is applied to the pattern region 25 without forming the etching groove 7 in the flat plate 1, the pattern 3 may not protrude properly due to the thickness of the flat plate 1, and delicate expression may be impossible. do. That is, since the thickness t of the flat plate 1 corresponding to the etching groove 7 becomes thinner than the original thickness T due to the etching groove 7, easy molding is possible.

Hereinafter, the process of the first embodiment of the forming step (S6) with the accompanying drawings as follows.

6 is a block diagram showing a process of the molding step according to the first embodiment in the method of manufacturing a doorside step by etching and a mold according to the present invention, Figure 7 is a seating step of the molding step according to the first embodiment And a process diagram showing the compression step and the release step in cross section. FIG. 8 is an enlarged view of a portion A of FIG. 7 in cross section, and FIG. 9 is a process diagram of a filling step performed after the detaching step of FIG. 7 in cross section.

First, in order to realize the present molding step S6, the following mold 100 is used.

As shown in FIG. 7, the mold 100 includes a lower mold 110 having an embossed portion 115 inserted into the etching groove 7 on an upper surface thereof. The embossed portion 115 has the same shape as the pattern 3 and is sized to be inserted into the etching groove 7. In addition, the upper mold 120 is formed on the lower surface of the intaglio portion 127 into which the embossed portion 115 is inserted. The engraved portion 127 is of course the size is adjusted so that the embossed portion 115 can be inserted after being inserted into the etching groove (7). In addition, a cutter blade 129 is mounted around the intaglio portion 127 on the lower surface of the upper die 120 to cut the edge of the flat plate 1 in a design shape. The upper die 120 and the lower die 110 is a general press machine (up machine) configured to enable mutual coupling and separation because the upper die 120 is elevated toward the lower die 110 by the guide shaft passing through at the same time.

As described above, the molding step S6 made using the mold 100 is as follows.

A mounting step (P1) for seating the flat plate 1 on the upper mold 110 so that the embossed portion 115 is inserted into the etching groove (7) is made.

After the seating step (P1), the upper mold 120 to press the lower mold 110 so that the relief 115 pushes the etching groove 7 to the intaglio 127, the Compression step (P2) is made for the cutter blade 129 to cut the rim of the plate (1). At this time, of course, the edge of the flat plate 1 is polished and additionally processed.

After the compression step (P2), the detachment step (P3) is made to detach the upper mold 120 from the lower mold 110 and lift the flat plate (1) from the lower mold (110).

After the leaving step (P3), the filling step (P4) is filled to fill the molten filling (8) in the etching groove (7). The filler may be made of non-ferrous metals, such as synthetic resins such as polyethylene, polypropylene, PVC, nylon or aluminum. That is, the filler 8 melted in the etch groove 7 opened upward while the lower surface 4 of the flat plate 1 faces upward. Cooling is completed.

As such, the reason for filling the filling 8 is to prevent the phenomenon in which the pattern 3 is deformed and deformed by the etch groove 7 emptied when the completed doorside step is mounted on the vehicle.

By this process, as shown in FIG. 8, the pattern 3 is embossed upward of the flat plate 1, and the top side 2 and the pattern 3 can manufacture the door side step in which the passivation layer was maintained without being damaged. .

Hereinafter, the process of the second embodiment of the molding step (S6) with the accompanying drawings as follows.

10 is a block diagram showing a process of the molding step according to the second embodiment in the method of manufacturing a doorside step by etching and mold according to the present invention, Figure 11 is a cutting step of the molding step according to the second embodiment The process drawing which shows in cross section. FIG. 12 is a cross-sectional view showing a seating step formed after the cutting step of FIG. 11 in cross section, and FIG. 13 is a cross-sectional view illustrating an injection step and a freezing step made after the mounting step in FIG. 12. In addition, Figure 14 is a process diagram showing a separation step and the filling step made after the freezing step of Figure 13 in cross section.

First, in order to realize the present molding step S6, the following mold 100 is used.

After the edge of the flat plate 1 is cut in a design shape, a block-shaped mold 130 in which a receiving groove 131 accommodated and matched is opened upward is configured. In addition, a shape groove 135 having a position and a shape corresponding to the etching groove 7 on the bottom surface 133 of the accommodation groove 131 and having a larger size than the etching groove 7 is formed. In addition, a plate-shaped cover 140 for closing the upper portion of the mold 130 is configured, the shaft is attached to the lower surface of the cover 140 to press the flat plate 1 seated in the receiving groove 131 ( 145, which is formed of a cushioning material such as a rubber material, is configured to be easily pressed later to compress the flat plate (1). In addition, the nipple 141 for guiding water to the receiving groove 131 through the cover 140 is configured, the coupling means 150 for coupling the cover 140 and the mold 130 is configured. .

Since the packing (not shown) is interposed on the upper end 137 of the mold 130 and the cover 140 corresponding thereto, watertightness is possible when the water is introduced later.

For example, the coupling means 150 may include a tab hole 153 formed in the upper end 137 of the mold 130 and a bolt 155 fastened to the tab hole 153 through the cover 140. Can be.

The molding step S6 according to the second embodiment of the mold 100 described above is as follows.

As shown in Fig. 11, a cutting step F1 is performed to cut the edge of the flat plate 1 in the shape of a design. As an example, the edge is cut using a press machine or a laser cutter. At this time, of course, the edge is polished and smoothly processed.

After the cutting step (F1), as shown in FIG. 12, a seating step (F2) for accommodating the plate 1 in the receiving groove 131 so that the etching groove 7 is directed upward.

After the seating step (F2), as shown in Figure 13, the sealing step (F3) for coupling the cover 140 to the coupling means 150 on the upper portion of the mold 130 is made. That is, since the bolt 155 of the coupling means 150 is fastened to the tab hole 153, a sealing state is possible. At this time, the shaft 145 by pressing the plate (1) to prevent the phenomenon of rising upward in the state in which water is injected later.

After the sealing step (F3), as shown in Figure 13, by connecting the hose to the nipple 141, filling the water (W) into the receiving groove 131, and then the injection step (F4) is made. At this time, the water to fill the 95% ~ 100% of the interior volume of the receiving groove 131, so that it can be easily pushed out the etching groove (7) during freezing of water described later.

After the injection step (F4), as shown in Figure 13, the freezing step to freeze the mold 100 to push the etch groove 7 to the forming groove 135 while the filled water (W) is frozen. (F5) is made. That is, the frozen water W replaces the function of the embossed portion 115 of the first embodiment. Therefore, it is possible to eliminate the trouble of separately operating the lower mold 110 including the embossed portion 115 of the first embodiment.

After the freezing step F5, as shown in FIG. 14, the frozen water W is melted, the coupling means 150 is released, and the cover 140 is separated, and then the flat plate 1 is removed from the mold. A departure step F6 is taken out from 130.

After the leaving step (F6), as shown in Figure 14, the filling step (F7) of filling the molten filling 8 in the etch groove (7) to solidify.

The filler may be made of non-ferrous metals, such as synthetic resins such as polyethylene, polypropylene, PVC, nylon or aluminum. That is, the filler 8 melted in the etch groove 7 opened upward while the lower surface 4 of the flat plate 1 faces upward. Cooling is completed.

As such, the reason for filling the filling 8 is to prevent the phenomenon in which the pattern 3 is deformed and deformed by the etch groove 7 emptied when the completed doorside step is mounted on the vehicle.

By this process, as shown in FIG. 8, the pattern 3 is embossed upward of the flat plate 1, and the top side 2 and the pattern 3 can manufacture the door side step in which the passivation layer was maintained without being damaged. .

In the above, the effects of the manufacturing method of the doorside step by the etching and the mold of the present application are as follows.

Since the etching groove 7 is formed on the lower surface 4 of the flat plate 1 and extrudes by applying a force to the etching groove 7, the upper surface 2 of the flat plate 1 and the pattern 3 are passive. Layer 5 is not damaged. Therefore, it is possible to prevent damage due to scratches and to prevent the phenomenon of being corroded by moisture or salt. Therefore, the problem of damaging the image of the mounted vehicle due to scratches and corrosion can be solved at once.

In addition, the thickness t of the flat plate 1 corresponding to the etch groove 7 by the etching groove 7 becomes thinner than the thickness T of the original flat plate 1. Therefore, the pattern 3 can be easily formed when the etching groove 7 is pushed out by applying a force. And the delicate and complicated pattern 3 can also be shape | molded easily.

In addition, when pushing out the etching groove 7 by the freezing of the water (W) as in the second embodiment of the molding step (S6), to form a lower mold formed with an embossed portion accommodated in the etching groove (7) separately There is no need for this, which makes the job easier.

S1: washing step S2: printing step
S3: exposure step S4: etching step
S5: Peeling Step S6: Molding Step
P1: Settling Stage P2: Compression Stage
P3: Exit Step P4: Charge Step
F1: Cutting step F2: Settling step
F3: sealing step F4: injection step
F5: freezing stage F6: leaving stage
F7: Charging Stage 1: Flatbed
2: top surface 3: pattern
4: face 5: passive layer
8: filler 21: printing layer
25: pattern area 100: mold
110: lower mold 115: embossed
120: pictograph 127: intaglio
129: cutter blade 130: mold
131: receiving groove 133: bottom surface
135: forming groove 137: top
140: cover 141: nipple
145: shaft 150: coupling means
153: taphole 155: bolt

Claims (3)

delete After having a plate (1) made of stainless steel and the washing step (S1) for removing contaminants on the plate (1),
After the washing step (S1), the printing step (S2) to form a printing layer 21 by coating an area other than the pattern area 25 on the lower surface (4) of the flat plate 1,
After the printing step (S2), the exposure step (S3) for curing the printed layer 21 by irradiating the lower surface 4 of the flat plate 1,
After the exposure step (S3), by spraying the etching solution to the lower surface (4) of the flat plate 1 so that the pattern region 25 is etched etching step (S4) to form an etching groove (7),
After the etching step (S4), after removing the etching liquid by washing the flat plate 1, the peeling step (S5) and peeling off the printed layer 21,
After the peeling step (S5), by applying a force to the etching groove (7) comprises a molding step (S6) to express the pattern (3) by embossing and cutting the edge in the designed shape,
A lower mold 110 having an embossed portion 115 inserted into the etching groove 7 on an upper surface thereof;
An upper mold 120 formed on the lower surface of the intaglio portion 127 into which the embossed portion 115 is inserted,
In the mold 100 including a cutter blade 129 is mounted around the intaglio portion 127 on the lower surface of the upper mold 120 to cut the edge of the flat plate 1 in the design shape,
The molding step (S6),
A seating step (P1) for seating the flat plate (1) on the upper portion of the lower mold (110) so that the relief portion (115) is inserted into the etching groove (7);
After the seating step (P1), the upper mold 120 to press the lower mold 110 so that the relief 115 pushes the etching groove 7 to the intaglio 127, the Compression step (P2) for the cutter blade 129 to cut the rim of the plate 1,
After the compression step (P2), the separation step (P3) for removing the upper mold 120 from the lower mold 110 and lifting the flat plate 1 from the lower mold 110,
And a filling step (P4) of filling the molten packing (8) in the etching groove (7) after the leaving step (P3). After having a plate (1) made of stainless steel and the washing step (S1) for removing contaminants on the plate (1),
After the washing step (S1), the printing step (S2) to form a printing layer 21 by coating an area other than the pattern area 25 on the lower surface (4) of the flat plate 1,
After the printing step (S2), the exposure step (S3) for curing the printed layer 21 by irradiating the lower surface 4 of the flat plate 1,
After the exposure step (S3), by spraying the etching solution to the lower surface (4) of the flat plate 1 so that the pattern region 25 is etched etching step (S4) to form an etching groove (7),
After the etching step (S4), after removing the etching liquid by washing the flat plate 1, the peeling step (S5) and peeling off the printed layer 21,
After the peeling step (S5), by applying a force to the etching groove (7) comprises a molding step (S6) to express the pattern (3) by embossing and cutting the edge in the designed shape,
After the edge of the flat plate 1 is cut in a design shape, a block-shaped mold 130 in which the receiving groove 131 accommodated and matched is opened upward, and
A shape groove 135 having a position and a shape corresponding to that of the etching groove 7 on the bottom surface 133 of the accommodation groove 131 and having a larger size than the etching groove 7;
Plate-shaped cover 140 for closing the upper portion of the mold 130,
A shaft 145 attached to the lower surface of the cover 140 to press the flat plate 1 seated in the receiving groove 131;
A nipple 141 for guiding water to the receiving groove 131 through the cover 140;
In the mold 100 comprising a coupling means 150 for coupling the cover 140 and the mold 130,
Cutting step (F1) for cutting the edge of the flat plate 1 in the shape of the design,
After the cutting step (F1), the mounting step (F2) for accommodating the plate 1 in the receiving groove 131 so that the etching groove 7 is directed upward,
After the seating step (F2), the sealing step (F3) for coupling the cover 140 to the coupling means 150 on the upper portion of the mold 130,
After the sealing step (F3), by connecting a hose to the nipple 141 to fill the water (W) into the receiving groove 131 and then the water injection step (F4),
After the injection step (F4), and the freezing step (F5) to freeze the mold (100) to push the etching groove (7) to the forming groove 135 while the filled water (W) is frozen; ,
After the freezing step F5, the frozen water W is dissolved, the coupling means 150 is released, and the cover 140 is separated, and the flat plate 1 is removed from the mold 130. Exiting step (F6),
And a filling step (F7) of filling the molten filler material (8) in the etching groove (7) after the leaving step (F6) and solidifying.

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