KR101098344B1 - Manufacture method of door side step having piercing patterns - Google Patents

Abstract

PURPOSE: A half and through-etching manufacturing method of a door scuff and the half of a door step is provided to make a small gap less than 1mm by forming through-pattern through an etching process. CONSTITUTION: A half and through-etching manufacturing method of a door scuff and the half of a door step comprises the following steps. The foreign material of a prepared plate(50) is removed(S1,S2). The films(70,80) having a through-pattern(75) is attached to a dry film(60) attached to the surface and rear side of the plate(S3,S4). The ultraviolet ray is firstly exposed to the plate(S5). A part of the plate where the dry film is removed is firstly corroded to the etching solution. The hardened dry film of the plate is removed. The film having an embossment pattern and an intaglio pattern is attached to the surface and rear side of the plate. The ultraviolet ray is secondly exposed to the plate. A part of the plate in which the dry film is removed is corroded. In order that the firstly corroded part is penetrated, it is corroded. The rim of the door side and door step is punched to the mold and is separated from the plate.

Description

Manufacturing method of door side step having piercing patterns

The present invention relates to a method for manufacturing a half and through etching of a door scuff and a door step for a vehicle, and more particularly, a half of a door scuff and a door step for a vehicle, which can be formed by etching simultaneously with an intaglio pattern and an embossed pattern. The present invention relates to a through etching manufacturing method.

Hereinafter, a process of the related art will be described with reference to the accompanying drawings.

1 is a perspective view showing a through pattern formed with an embossed pattern and an intaglio pattern as a general vehicle door scuff and door step, and FIG. 2 is a block diagram showing a method for manufacturing a vehicle door scuff and door step according to the related art. 3 is a process diagram showing a plate preparation step to an exposure step as a method for manufacturing a vehicle door scuff and a door step according to the prior art, and FIG. 4 is a developing step as a method for manufacturing a door scuff and a door step for a vehicle according to the prior art. Will be described together with the process chart shown from the pattern punching step.

The door scuff 1 is attached to the upper side of the door frame of the vehicle, the door step 1 is attached to the lower side of the door frame of the vehicle is formed in a plate shape so that the occupants can step on the foot, various patterns are molded into the yin and yang of the interior decoration of the vehicle The function is also provided.

As shown in FIG. 1, the door scuff and the door side door step 1 include a plate-shaped body 10, an embossed pattern 20 formed on a surface of the body 10, an intaglio pattern 30, and the body 10. It is configured to include a through pattern 40 which is a hole passing through).

Looking at the manufacturing method of the door scuff and the door side (1) as follows.

A plate preparation step (T1) for preparing a metal plate such as stainless steel or aluminum, a pretreatment step (T2) for removing foreign matter from the plate (50), and a surface of the plate (50) which has undergone the pretreatment step (T2); Dry film coating step (T3) for attaching the dry film 60 on the back surface, film adhesion step (T4) for attaching the film 70 is printed pattern on the surface and the dry film 60 on the back, and An exposure step T5 of illuminating ultraviolet rays to the plate 50 to which the film 70 is attached, and after the exposure step T5, the film 70 is removed and the dry film 60 which is not subjected to light is removed with an alkaline solution. The developing step T6, the etching step T7 of corroding the portion where the dry film 60 is removed after the developing step T6 with etching solution, and the adhesion to the plate 50 after the etching step T7. A peeling step (T8) of removing the cured dry film 60 with a peeling liquid, and A punching step T9 for punching the edge of the doorside door step 1 with a mold after the peeling step T8, and a pattern punching step T10 for punching the through pattern 40 into the mold after the punching step T9. Is made of.

In the preparation step (T1) is a step of preparing by cutting the metal plate to the required dimensions. In addition, the pretreatment step (T2) is a process of smoothly washing the surface and the back of the plate 50 with a cleaning solution containing acid. The dry film used in the dry film coating step (T3) is a film that is cured by ultraviolet or heat. In addition, in the film adhesion step (T4), the film 70 is attached to the surface and the back surface, the film 70 attached to the surface is embossed portion is expressed transparently, the intaglio portion is expressed in black do. Since the back surface of the door side door step 1 should not be corroded, the film 70 attached to the back surface of the door side door step 1 is printed in black.

According to the manufacturing method, an embossed pattern 30 is formed on the surface of the door side door step 1, and a portion around the embossed pattern 30 is half-etched in an etchant to form an intaglio pattern 30. In the pattern punching step T10, a pattern such as a letter is formed by punching the through pattern 40 as shown in FIG. 1.

The prior art by the manufacturing method has the following problems.

First, in the conventional process, only one pattern could be made. For example, only embossed and intaglio patterns could be represented, or only through patterns could be formed.

Second, when the through pattern is formed by punching, it is impossible to mold the fine pattern. For example, if the thickness of a character represented by a through pattern is within 1 mm, there is a problem that it is difficult to express clearly as a mold.

According to an embodiment of the present disclosure, a method for preparing a half and through etching of a door scuff and a door step of a vehicle includes a plate preparation step of preparing a metal plate, a first pretreatment step of removing foreign matters from the plate, and a plate that has been subjected to the first pretreatment step. The first dry film coating step of attaching the dry film on the surface and the back of the first film contacting step of attaching the film printed with the through pattern on the dry film on the front and back of the plate, and the film is attached The primary exposure step of illuminating the ultraviolet rays in the first exposure step, the first development step of removing the film after the first exposure step, and the dry film that has not received light, and not penetrating the part where the dry film is removed after the first development step. The first etching step of etching only part of the etching solution so that the hardened dry film attached to the plate after the first etching step A second pre-treatment step for removing foreign matters on the surface and the back surface of the plate that has been subjected to the peeling step, and a second dry film for attaching the dry film to the surface and the back of the plate which has been subjected to the second pre-treatment step A coating step, a second film adhesion step in which an embossed pattern and an intaglio pattern are adhered to the dry film on the front and back surfaces of the plate, respectively, and a second exposure step of shining ultraviolet rays on the plate to which the film is attached; After the secondary exposure step to remove the film and remove the dry film that is not light, the secondary development step, and after the secondary development step, only a part of the dry film removed after the corrosion, and the first etching step A secondary etch step to corrode the portion through, and a secondary foil to remove the cured dry film attached to the plate after the second etch step. And a punching step of punching the edge of the doorside door step with a mold to separate it from the plate after the second peeling step, wherein the films are in a state of being matched with each other in the first film contact step and the second film contact step. In one side is configured to be attached to each other, between the two films, by putting a plate with a dry film, it characterized in that the film is in close contact.

According to the present invention, the method for manufacturing a half and through etching of a door scuff and a door step for a vehicle can not only express the through pattern together with an embossed pattern and an intaglio pattern in the door scuff and the door step, but also etch the through pattern. Since it is molded by the process, there is an effect that can be expressed in delicate patterns, such as small gaps of 1 mm or less, that cannot be molded by the punching method.

1 is a perspective view illustrating a through pattern formed with an embossed pattern and an intaglio pattern as a general vehicle door scuff and a door step.
2 is a block diagram showing a method for manufacturing a vehicle door scuff and a door step according to the prior art.
3 is a process diagram showing a plate preparation step to an exposure step as a method for manufacturing a vehicle door scuff and door step according to the prior art.
Figure 4 is a process diagram showing a development step to the pattern punching step as a manufacturing method of the vehicle door scuff and door step according to the prior art.
FIG. 5 is a block diagram illustrating a method for manufacturing a half and through etching of a door scuff and a door step for a vehicle according to the present invention. FIG.
FIG. 6 is a process diagram showing a vehicle door scuff and a half-step and through-etching method of a door step according to the technique of the present invention from a plate preparation step to a first exposure step.
FIG. 7 is a process diagram showing a vehicle door scuff and a half-step and through-etching method of a door step according to the technique of the present invention from the first etching step to the second exposure step.
FIG. 8 is a process diagram showing a vehicle door scuff and a half and through etching method of the door step according to the technique of the present invention from the secondary development step to the punching step.

Hereinafter, a manufacturing method of the present invention for solving the above problems with reference to the accompanying drawings is as follows.

5 is a block diagram illustrating a half and through etching method for manufacturing a vehicle door scuff and a door step according to the present invention, and FIG. 6 is a half and through etching method for manufacturing a vehicle door scuff and a door step according to the present invention. As a process chart showing the plate preparation step to the first exposure step, Figure 7 is a half and through etching method for manufacturing a door scuff and door step for a vehicle according to the technology of the present invention shown from the first etching step to the second exposure step 8 is a process diagram showing a vehicle door scuff and a half-step and through-etching method of the door step according to the technique of the present invention, from the secondary development step to the punching step.

In general, the door scuff (1) is attached to the upper of the door frame of the vehicle, the door step (1) is attached to the lower of the door frame of the vehicle is formed in a plate shape so that the occupants can step on, the various patterns are molded into the yin and yang of the vehicle It also has an interior decoration function.

The door scuff and the door step 1 are plate-shaped body 10, and an embossed pattern 20 formed on the surface of the body 10, an intaglio pattern 30, and a hole passing through the body 10. It is configured to include a through pattern 40.

In the present invention, the embossed pattern 20 and the intaglio pattern 30 are formed by etching the door scuff and the door step 1, and the through pattern 40 can be formed.

To this end, in the present invention, a manufacturing method is made as follows.

A plate preparation step (S1 ) for preparing a plate 50, which is a metal plate, a first pretreatment step (S2) for removing foreign matters from the plate 50, and a plate 50 having undergone the first pretreatment step (S2) First dry film coating step (S3) for attaching the dry film 60 on the surface and the back of the) and the film, the through pattern 75 is printed on the dry film 60 on the front and back of the plate 50 Primary film adhesion step (S4) for attaching the (70, 80), the primary exposure step (S5) for shining ultraviolet rays to the plate 50 to which the film (70, 80) is attached, and the primary exposure step After the step (S5) to remove the film (70, 80) and remove the dry film 60 that is not light, the first developing step (S6), and after the first developing step (S6) dry film 60 is removed The first etching step (S7) to etch only part of the etching solution so as not to penetrate the portion, and the cured attached to the plate 50 after the first etching step (S7) A peeling step (S8) of removing the dry film 60, a second pretreatment step (S9) of removing foreign matters from the surface and the back surface of the plate 50 subjected to the peeling step (S8), and the second pretreatment The second dry film coating step (S10) of attaching the dry film 65 to the surface and the back surface of the plate subjected to the step (S9), and the embossed pattern (on the dry film 65 of the surface and back surface of the plate 50) 95, 105 and the second film adhesion step (S11) to which the film (90, 100) printed with the intaglio pattern (97, 107) is attached, respectively, and the plate (50) to which the film (90, 100) is attached A secondary exposure step S12 for illuminating ultraviolet rays, a second development step S13 for removing the films 90 and 100 and removing the dry film 65 not subjected to light after the second exposure step S12; After the secondary development step (S13), only a part of the dry film 65 is removed, and the part that is corroded in the first etching step (S7) when the corrosion The key is a secondary etching step (S14), a secondary peeling step (S15) for removing the cured dry film 65 attached to the plate 50 after the secondary etching step (S14), and the secondary After the peeling step (S15) is made of a punching step (S16) for punching the edge of the door side door step (1) with a mold to separate from the plate 50.

Looking at the embodiment of the present invention to enable the manufacturing method as follows.

In the plate preparation step (S1), a metal plate such as stainless steel or aluminum is cut to a predetermined size to prepare.

In the first pretreatment step (S2), to remove the foreign matter on the surface and the back surface of the plate 50, 45 ° C ~ 47 ° C pretreatment liquid is sprayed to remove the plate 50. The pretreatment liquid is, for example, a mixture of 5% caustic soda and 95% water, sprayed onto the surface of the plate 50, and then wiped with a sponge and blown with a blower to dry.

In the first dry film coating step (S3), the dry film 60, which is cured by ultraviolet rays or heat, is attached to both sides of the plate 50. For example, a laminating apparatus is used. The laminating device is configured to be heated by mounting a heater inside the roller as the roller is engaged and rotated. Therefore, the plate 50 is laminated between the two dry films 60 between the rollers to be coated by thermocompression.

In the primary film adhesion step (S4), the films 70 and 80 on which the through patterns 75 are printed are adhered to the dry film 60 on the front and back surfaces, respectively, and the through patterns 75 are printed in black. And the rest is transparent. One side of the films 70 and 80 are attached to each other in a state where the through patterns 75 are matched with each other. That is, the films 70 and 80 are configured to be opened and closed like a book. Therefore, the film 70, 80 is in close contact with the dry film 60 on the front and rear surfaces by putting the plate 50 with the dry film 60 attached between the two films 70, 80. The film 70, 80 has the advantage that can be used repeatedly many times a number of times by the above configuration.

In the first exposure step S5, ultraviolet rays are irradiated onto the films 70 and 80 on the front and back surfaces. Then, portions other than the through pattern 75 are cured by ultraviolet rays. Then, the plate 50 is separated from the films 70 and 80.

In the first development step (S6), for example, the portion of the substrate 50 which is not exposed to ultraviolet rays by spraying a soda ash solution mixed with 5% of soda ash and 95% water volume, that is, the through pattern 75 is used. The part corresponding to is melted and removed. In the case of the development of the plate 50, the etching solution may penetrate between the cured dry film 60 and the plate 50, and is dried to further enhance adhesion. In the drying step, the soda ash solution is wiped with a sponge and dried by blowing air with a blower.

In the first etching step S7, the through pattern 75 is half-etched, that is, only partially etched, so that it is not completely penetrated. Therefore, it is completely penetrated in the secondary etching step (S14) described later. Typically only 70% of the plate 50 thickness is etched. The etching solution used in the first etching step (S7) is to use a ferric chloride dissolved in water, it is preferable to use a mixture of ferric chloride 43%, water 57% volume. When the ferric chloride solution is sprayed onto the surface and the rear surface of the developed plate 50, the portion corresponding to the through pattern 75, that is, the portion removed on the dry film 60 by development, is corroded. .

In the first peeling step (S8) to remove the dry film 60 is a caustic soda solution by spraying the dry film 60 attached to the surface and the back surface of the plate 50, the primary etching is completed. As the stripping solution, a mixture of 5% caustic soda and 95% water is used as an example.

In the second pretreatment step (S9) to remove the foreign matter on the surface and the back surface of the plate 50 passed through the first peeling step (S8), the plate 50 in the same manner as the first pretreatment step (S2) Remove any dirt on it and dry it.

In the second dry film coating step (S10), the dry film 65 is coated on the front and rear surfaces of the plate 50 in the same manner as the first dry film coating step.

In the secondary film adhesion step S11, the films 90 and 100 are adhered to the front and back surfaces in the same manner as the primary film adhesion step S4. The embossed pattern 95 is transparently printed on the film 90 of the surface, and the intaglio pattern 97 is printed in black. The film 100 on the back surface is a portion forming the back surface of the door side door step 1 and should not be corroded. Therefore, the entire outline of the doorside door step 1 is printed transparently, and the periphery thereof is printed black. Since the film 90, 100 is also configured to open like a book, there is an advantage that can be used repeatedly many times.

In the second exposure step S12, ultraviolet rays are irradiated to the film 90 on the front surface and the film 100 on the back surface in the same manner as in the first exposure step S5. Then, the dry film 65 corresponding to the transparent part of the films 90 and 100 is cured, and the dry film 65 corresponding to the black part of the films 90 and 100 is not cured. Then, the plate 50 is separated from the films 90 and 100.

In the secondary development step S13, the dry film 65 which is not cured is removed in the same manner as in the first development step S6.

In the secondary etching step (S14), the etching is performed in the same manner as the primary etching step (S7), so that the through pattern 40 is completely penetrated, and the intaglio pattern 30 is etched to be half-etched. . The penetration pattern 40 is partially penetrated in the first etching step S7. Therefore, when the intaglio pattern 30 in FIG. 1 is etched, the through pattern 40 is etched and completely drilled at the same time.
In the second peeling step S15, the dry film 65 cured in the same manner as the first peeling step S8 is removed.

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In the punching step (S16), a process of cutting the edges of the door scuff and the step 1 of the door step from the plate 50 and separating them from the plate 50 is possible by a press.

According to the manufacturing method, not only the through pattern 40 together with the embossed pattern 20 and the intaglio pattern 30 can be expressed by the etching process, but also the punching because the through pattern 40 is formed by the etching process. There is a characteristic that can express delicateness that cannot be molded by the method.

S1: plate preparation step S2: pretreatment step
S3: primary dry film coating step S4: primary film adhesion step
S5: first exposure step S6: first development step
S7: first etching step S8: first peeling step
S9: 2nd pretreatment step S10: 2nd dry film coating step
S11: secondary film adhesion step S12: secondary exposure step
S13: secondary development step S14: secondary etching step
S15: secondary peeling step S16: punching step
1: door side door step 10: body
20: embossed pattern 30: engraved pattern
40: through pattern 50: plate
60, 65: dry film 70, 80: film
75: through pattern 90, 100: film
95: embossed pattern 97: engraved pattern

Claims (1)

Plate preparation step (S1) for preparing a plate 50 which is a metal plate ,
Primary pretreatment step (S2) and to remove the foreign matter on the plate 50,
A first dry film coating step (S3) for attaching the dry film 60 to the surface and the back surface of the plate 50 which has undergone the first pretreatment step (S2),
Primary film adhesion step (S4) for attaching the film 70, 80, the printed through pattern 75 is printed on the dry film 60 on the front and back of the plate 50,
A first exposure step S5 of illuminating ultraviolet rays to the plate 50 to which the films 70 and 80 are attached;
After the first exposure step (S5) to remove the film (70, 80) and the first dry step (S6) for removing the dry film 60 is not light, and
After the primary developing step (S6) and the first etching step (S7) to etch only a portion of the etching film so as not to penetrate through the portion removed dry film 60,
A peeling step (S8) of removing the cured dry film 60 attached to the plate 50 after the first etching step (S7),
Secondary pretreatment step (S9) for removing the foreign matter on the surface and the back surface of the plate 50 passed through the peeling step (S8),
A second dry film coating step (S10) of attaching the dry film 65 to the surface and the back surface of the plate which has undergone the second pretreatment step (S9),
Second film adhesion step of the film (90, 100) is printed on the embossed pattern (95, 105) and the intaglio pattern (97, 107) on the dry film 65 of the surface and the back of the plate 50, respectively ( S11),
A second exposure step (S12) of shining ultraviolet rays on the plate 50 to which the films 90 and 100 are attached;
After the secondary exposure step (S12) to remove the film (90, 100) and the secondary development step (S13) for removing the dry film 65 that is not light, and
After the secondary development step (S13) and the portion of the dry film 65 is removed only a portion of the secondary etching step (S14) to corrode so that the portion eroded in the first etching step (S7) and,
After the secondary etching step (S14) and the secondary peeling step (S15) for removing the cured dry film 65 attached to the plate 50,
After the secondary peeling step (S15) is made of a punching step (S16) of punching the edge of the door side door step (1) with a mold to separate from the plate 50,
In the primary film adhesion step (S4) and the secondary film adhesion step (S11), the film (70, 80) is composed of one side is attached to each other in a state that is matched with each other, between the two films (70, 80) A method of manufacturing a half and through etching of a door scuff and a door step for a vehicle, characterized in that the film (70, 80) is put in contact with the plate (50) to which the dry film (60) is attached.

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