Coating nozzle for protecting film

专利摘要:
In order to provide a coating film coating nozzle having a wide coating bead width regardless of the size of the nozzle so that the liquid coating paint can be widely applied to the coating film portion of the vehicle body to protect the coating film of the vehicle body, In the nozzle for coating film coating to receive the liquid coating paint in order to protect the vehicle body coating film and to apply a fixed amount to the vehicle body coating film part, An inlet part consisting of a screw part to be screwed into a supply pipe for supplying the liquid coating paint; An orifice portion integrally connected with the inlet portion and having a predetermined orifice aperture; It has an inclined surface corresponding to the orifice of the orifice portion, has an opening that opens to one side, and provides a nozzle for coating the coating film, characterized in that consisting of a discharge portion for applying the paint discharged through the orifice side.
公开号:KR20030018925A
申请号:KR1020010053527
申请日:2001-08-31
公开日:2003-03-06
发明作者:장성구；신현오
申请人:현대자동차주식회사；
IPC主号:

专利说明:

Nozzle for coating film coating {COATING NOZZLE FOR PROTECTING FILM}
[6] The present invention relates to a nozzle for coating a coating film of an automobile, and more particularly, to a nozzle for coating a coating film for applying a liquid coating paint applied to a coating film protection coating apparatus to protect a coating film of a vehicle body. .
[7] In general, in the production process of automobiles, the painting process is to prevent corrosion of the vehicle body after the completion of the vehicle body, and to enhance the commerciality by making the beauty of sound and beauty beautiful, and the body passed through the drying furnace of the pretreatment process is rustproof and surface gloss. The coating film is formed through the undercoat (electrodeposition) process, which is a factor of, the intermediate process of providing chipping resistance, smoothness, and weather resistance of the paint, and the top coat process of providing aesthetic appearance.
[8] The car body after the coating process is coated with a protective film to protect the coating film from the chipping, algae discharge, fallout, acid rain, soot, etc. during transportation before being put into the vehicle assembly process, which is the final process in automobile manufacturing. A liquid coating paint was applied to the coating site through the device.
[9] Looking at the overall configuration of the coating device for protecting the coating film in brief through FIG. 1, the nozzle for coating the coating film through the paint supply device 20 and the constant flow rate discharge device 30 supplying the liquid coating paint on the entire line ( 10) is supplied to the coating paint is made to apply the coating paint on the coating film by the articulated robot (40).
[10] That is, the paint supply device 20 first supplies the coating paint to the fixed flow rate discharge device 30 at a predetermined pressure through the supply pipe 21 in the container 21 itself containing the coating paint, The discharge device 30 discharges the supplied coating paint through the discharge pipe 31 at a constant flow rate per unit time to supply the nozzle 10 for the coating film coating, and the nozzle 10 for the coating film coating The coating paint supplied from the discharging device 30 is sprayed with a predetermined thickness on the coating film to coat the coating film.
[11] At this time, the coating film coating nozzle 10 is connected to the articulated robot 40, the articulated robot 40 is electrically connected to receive the operation signal from the robot control means 41 the operation signal By operating in accordance with the coating film coating nozzle 10 moves along the coating film of the vehicle body 1 moving through the trolley (2) to form a coating.
[12] Here, the coating film coating nozzle 10 is, as shown in Figure 5, the first paint chamber 105 is connected to the paint supply port 103 in the transverse direction in the nozzle body 101, The first paint chamber 105 and the second paint chamber 109 is formed to be connected through a plurality of connecting pipes 107, the second paint chamber 109 is a lower portion of the applicator 111 along the longitudinal direction It is made by configuring.
[13] However, according to the structure of the conventional coating film coating nozzle as described above, since the bead width (B) is fixed in proportion to the length of the nozzle at the time of coating, the coating film protection for In the case of coating work, when the wide coating film is applied, the number of reciprocating operations by the robot increases, which is inefficient, and the length of the nozzle can be made long to reduce the number of operations, but this causes other problems such as discharge pressure. It has a problem.
[14] Therefore, the present invention was created to solve the above problems, and an object of the present invention is to change the size of the nozzle so that the liquid coating paint can be widely applied to the coating film portion of the vehicle body to protect the coating film of the vehicle body. It is to provide a coating film coating nozzle having a wide coating bead width regardless of coating.
[1] 1 is an overall configuration diagram of a coating film protection coating apparatus to which the present invention and the prior art are applied.
[2] 2 is a perspective view of a nozzle for coating a coating film according to the present invention.
[3] 3 is a cross-sectional view taken along the line A-A of FIG.
[4] Figure 4 is a view showing the bead width during the coating of the coating by the nozzle for coating film coating according to the present invention.
[5] 5 is a cross-sectional view of a nozzle for coating a coating film according to the prior art.
[15] In order to achieve the above object, the coating film coating nozzle according to the present invention is supplied with a liquid coating paint to protect a vehicle coating film.
[16] An inlet part consisting of a screw part to be screwed into a supply pipe for supplying the liquid coating paint; An orifice portion integrally connected with the inlet portion and having a predetermined orifice aperture; It has an inclined surface corresponding to the orifice of the orifice portion, has an opening opening in one side, characterized in that consisting of a discharge portion for applying the paint discharged through the orifice side,
[17] The diameter of the orifice is set to 1.2 mm or more and 2.3 mm or less, and the linear length from the end of the orifice portion to the inclined surface of the discharge portion is set to 2.0 mm or more and 4.0 mm or less, and the inclined surface of the discharge portion has an inclination angle of 60 mm or less. It is characterized by being set at more than 85 °.
[18] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[19] 1 is an overall configuration diagram of a coating film protection coating apparatus to which the present invention and the prior art are applied.
[20] Referring to Figure 1, briefly look at the configuration of the coating film protection coating apparatus to which the present invention is applied, the coating through the paint supply device 20 and the constant flow rate discharge device 30 for supplying a liquid coating paint on the entire line The membrane coating nozzle 10 is supplied with a coating paint to apply the coating paint on the coating film by the articulated robot 40.
[21] That is, the paint supply device 20 first supplies the coating paint to the constant flow rate discharge device 30 at a predetermined pressure through the supply pipe 21 in the container 21 itself containing the coating paint, The discharge device 30 discharges the supplied coating paint through the discharge pipe 31 at a constant flow rate per unit time to supply the nozzle 10 for the coating film coating, and the nozzle 10 for the coating film coating The coating paint supplied from the discharging device 30 is sprayed with a predetermined thickness on the coating film to coat the coating film.
[22] At this time, the coating film coating nozzle 10 is connected to the articulated robot 40, the articulated robot 40 is electrically connected to receive the operation signal from the robot control means 41 the operation signal By operating in accordance with the coating film coating nozzle 10 moves along the coating film of the vehicle body 1 moving through the trolley (2) to form a coating.
[23] Here, the configuration of the coating film coating nozzle 10 according to the present invention, as shown in Figures 2 and 3, the screw portion to be screwed and mounted in the supply pipe (not shown) for supplying the coating liquid coating An inlet portion 203 formed of a 201, an orifice portion 205 integrally connected to the inlet portion 203, having a predetermined orifice 209 aperture, and an orifice 209 of the orifice portion 205; It has a corresponding inclined surface 211, has an opening 213 open to one side, and is composed of a discharge portion 207 for applying laterally the paint discharged through the orifice 209.
[24] The diameter of the orifice 209 is set to more than 1.2mm, less than 2.3mm, if the diameter of the orifice 209 is set to less than 1.2mm, the coating is not easy to discharge due to its viscosity when the viscosity is high At low viscosities, dripping can occur during operation.
[25] In addition, when the diameter of the orifice 209 is set to 2.4 mm or more, the discharge amount becomes excessive and the discharge pressure drops, so that the phenomenon of the coating bead width B of the coating paint decreases as shown in FIG. 4. In order to solve this problem, if the supply pressure of the coating paint is increased, there is a problem that bubbles or paint phenomena occur in the paint.
[26] The straight line length L between the end of the orifice portion 205 and the inclined surface 211 of the discharge portion 207 is set at 2.0 mm or more and 4.0 mm or less, and the straight line length L is 2.0 mm. If less than the discharge pressure of the coating material is high, the coating pattern is formed on the inclined surface 211 of the discharge portion 207 at the same time the chisel phenomenon occurs, if the discharge pressure is low coating bead width of the coating material The phenomenon in which (B) decreases occurs.
[27] In addition, when the straight line length L is 4.1 mm or more, impact energy is not generated on the inclined surface 211 of the discharge part 207 when the discharge pressure is low, so that the coating pattern of the coating paint is not formed. .
[28] The inclined surface 211 of the discharge part 207 is set at an inclination angle α of 60 ° or more and 85 ° or less, and when the inclination angle α is less than 60 °, a flapping phenomenon occurs and coating is performed. Although it can be improved by adjusting the discharge pressure of the paint, there is a limit, the phenomenon that the coating bead width (B) of the coating paint is reduced by the reduction in the impact amount on the inclined surface (211).
[29] In addition, when the inclination angle α is 86 ° or more, a large amount of impact on the inclined surface 211 may cause a phenomenon in which both ends of the coating pattern may split, and a chisel phenomenon may be remarkably caused by reaction.
[30] Therefore, the coating film coating nozzle 10 according to the present invention is manufactured to apply the coating paint to the vehicle body coating film portion is set within the standard, as described above, the discharge through the orifice 209 When the coating paint is set to the inclined surface 211 of the discharge portion 207 at a set viscosity, as shown in Figure 4, at least three times or more than the width (B ') of the coating film coating nozzle 10 Since the coating bead width B is discharged and applied to the vehicle body coating film portion, the area that can be applied at one time is wider than the conventional coating film coating nozzle, thereby reducing the number of operations. It is.
[31] As described above, according to the nozzle for coating a coating film according to the present invention, the coating bead width of the paint is wide so that the nozzle can be coated with a wide coating film without having a large nozzle size. It is possible to shorten the number of reciprocating operation by the effect that can improve the workability and economics at the same time.

权利要求:
Claims (4)
[1" claim-type="Currently amended] In the nozzle for coating film coating to receive a liquid coating paint in order to protect the vehicle body coating film and to apply a fixed flow rate to the vehicle body coating film portion,
An inlet part consisting of a screw part to be screwed into a supply pipe for supplying the liquid coating paint;
An orifice portion integrally connected with the inlet portion and having a predetermined orifice aperture;
A discharging portion having an inclined surface corresponding to the orifice of the orifice portion, having an opening opening in one side, and discharging the paint discharged through the orifice laterally;
Nozzle for coating film coating, characterized in that consisting of.
[2" claim-type="Currently amended] The method of claim 1, wherein the aperture of the orifice
Nozzle for coating film coating, characterized in that set at 1.2mm or more, 2.3mm or less.
[3" claim-type="Currently amended] The nozzle for coating a coating film according to claim 1, wherein a straight line length between the end of the orifice portion and the inclined surface of the discharge portion is set at 2.0 mm or more and 4.0 mm or less.
[4" claim-type="Currently amended] The inclined surface of the discharge unit is
Coating device for protecting the coating film, characterized in that the inclination angle is set at 60 ° or more, 85 ° or less.

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同族专利:

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引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
2001-08-31|Application filed by 현대자동차주식회사

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2001-08-31|Priority to KR1020010053527A

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2003-03-06|Publication of KR20030018925A

优先权:

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申请号 | 申请日 | 专利标题

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KR1020010053527A|KR20030018925A|2001-08-31|2001-08-31|Coating nozzle for protecting film|