KR100753600B1 - Mounting unit for molding member and appratus for coating molding member using the same - Google Patents

Abstract

A molding member mounting unit and a molding member coating device using the same are provided to complete a molding member coated with a coating source in the desirable color by making the molding member directly face the coating source sprayed from the lower side of a coating chamber by rotating the molding member in each direction. A molding member mounting unit is composed of a fixed shaft; a hollow rotary shaft(21) turned for the fixed shaft, wherein the fixed shaft is inserted into the rotary shaft; plural horizontal bars(22) radially arranged around the rotary shaft and provided with through-holes(22a) formed at regular intervals; plural driving sprockets(24) combined to the rotary shaft at regular intervals; and plural molding mounting parts(31) rotatably installed in the through-holes of the horizontal bars, wherein a molding member is installed at the upper end of the molding mounting part and the lower end of the molding mounting part is engaged with the driving sprockets.

Description

Molding member mounting unit and molding member coating device using the same {MOUNTING UNIT FOR MOLDING MEMBER AND APPRATUS FOR COATING MOLDING MEMBER USING THE SAME}

1 is a perspective view showing a mobile phone having a molding member.

Figure 2 is a perspective view of a molding member mounting unit according to an embodiment of the present invention.

3 is a partially exploded perspective view of a molding member mounting unit according to an embodiment of the present invention;

Figure 4 is a cross-sectional view of the molding member mounting unit according to an embodiment of the present invention.

Figure 5 is a bottom perspective view of the molding member coating apparatus according to an embodiment of the present invention.

Figure 6 is a cross-sectional view of the molding member coating apparatus according to an embodiment of the present invention.

Description of the main symbols in the drawings

1 molding member 2 mounting hole

3: molding member mounting unit 4: molding member coating device

11: fixed axis 12: block

21: axis of rotation 22: horizontal bar

23 disc 24 drive sprocket

31: molding mounting part 32: mounting tip

33: connecting shaft 34: driven sprocket

41: cover 51: coating chamber

52: frame 53: fixed gear

61 drive shaft 62 rotating plate

63: connection portion 63a: fixed block

63b: Rotary Gear 63c: Coupler

64: rotating ring 65: holder

66: cancer

The present invention relates to a mounting unit for mounting an injection molded molding member and a molding member coating apparatus using the same, and more particularly, to rotate the molding member while the molding member is coated so that a coating source is evenly coated on the molding member. Molding member mounting unit and a molding member coating apparatus using the same.

As illustrated in FIG. 1, various living articles such as a mobile phone are provided with a molding member having a surface coated with a desired color on the edge of the article for the purpose of beautifully appearance.

Such a molding member is typically coated with a coating source on a plastic injection molded product (hereinafter referred to as 'injection') molded into a desired shape to complete a molding member of a desired color.

According to the prior art, there is a method of coating a coating source of a desired color on an injection molded product, such as dipping, spraying, etc., but the coating source is thick and easily peeled off.

In recent years, the outer surface of the molding member is coated by evaporation in order to be able to strengthen the surface layer coated with the coating source even at a thin thickness and to exhibit the gloss of the metallic texture. Coating by evaporation disperses a coating source, which is a metallic material such as tin, nickel, aluminum, or an alloy material thereof, from the lower portion of the coating chamber in a vacuum state, and rotates the molding member on the upper portion of the coating member. The coating source is coated to complete the molding member.

However, conventionally, the molding member is not rotated evenly in the process of coating the molding member, there is a problem that some surface is not coated. For example, when the injection molding is rotated only in a limited direction inside the coating chamber, some surfaces of the injection molding are not coated, which may cause a defect. As the injection material does not directly face the specific surface of the injection source and the coating source which rises and diverges from the bottom to the upper part during the process of rotating in the coating chamber, a phenomenon occurs that some surfaces are not coated.

The role of the molding member in various articles is mainly for beautiful appearance, if the article is manufactured in a state that the coating source is not coated on some surfaces, the commerciality of the article can be significantly reduced.

In addition, in a communication device such as a mobile phone, a phenomenon may occur in which electromagnetic waves are leaked to the outside through the uncoated surface.

The present invention is invented to solve the above problems, a molding member that can rotate the molding member to be evenly coated in each direction while the molding member is coated so that the coating source is evenly coated on the entire molding member. An object of the present invention is to provide a mounting unit and a molding member coating apparatus using the same.

In order to achieve the above object, the molding member mounting unit of the present invention includes a fixed shaft and a hollow shaft, the rotating shaft being inserted into the fixed shaft to be rotatable about the fixed shaft, and the rotating shaft. A plurality of horizontal bars radially disposed around the plurality of horizontal bars and spaced through holes, a plurality of driving sprockets fastened at intervals on the rotating shaft, and a molding member mounted on an upper end thereof and fitted to the driving sprocket at a lower end thereof; It includes a plurality of molding mounting portion rotatably provided in the through hole of the bar.

Here, the molding mounting portion, the mounting tip is formed so that the molding member is inserted into the upper end, the driven sprocket is formed to be fitted to the drive sprocket at the lower end, the mounting tip and the driven sprocket connected to the through and rotatable to the horizontal bar It is preferable to include a connecting shaft that is installed.

Meanwhile, a cover may be further provided outside the plurality of horizontal bars to cover each horizontal bar.

In addition, the molding member coating apparatus according to the present invention, a fixed gear provided in the upper portion of the coating chamber, a rotating plate which is fastened to the lower end of the drive shaft provided to be rotatable through the inside of the fixed gear and the interval between the rotating plate It is provided radially with a connecting portion that is rotated by the fixed gear, and connected concentrically with the rotating plate, the rotating ring to rotate concentrically with the rotating plate, one end is fastened to the connecting portion, the other end to the rotating ring It is fastened and includes a molding member mounting unit for rotating the molding member attached to the outside by the rotation of the rotating plate.

Here, the molding member mounting unit, the block is provided at one end is formed of a fixed shaft accommodated in the holder provided in the rotary ring, and a hollow shaft, the fixed shaft is inserted therein is rotatable about the fixed shaft A plurality of horizontal bars, one end of which is connected to the connecting shaft, a plurality of horizontal bars radially disposed around the rotating shaft and spaced apart from each other, and a plurality of driving sprockets connected to the rotating shaft at intervals; A mounting tip is formed at an upper end to insert a molding member, and a lower end is formed with a driven sprocket engaged with the driving sprocket, and the mounting tip and the driven sprocket are connected to a connecting shaft to be rotatably provided on the horizontal bar. It characterized in that it comprises a mounting portion.

On the other hand, the connecting portion, a fixed block provided radially at a predetermined angle to the rotating plate, a rotary gear rotatably provided on the fixed block and meshed with the fixed gear, provided coaxially with the rotary gear and the rotating shaft It is preferable to include a coupler that is coupled with the front end of the.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the molding member mounting unit of the present invention.

Figure 2 is a perspective view of a molding member mounting unit according to an embodiment of the present invention, Figure 3 is a partially exploded perspective view showing the internal structure of the molding member mounting unit of Figure 2, Figure 4 is a molding member mounting unit of Figure 2 It is a cross section of.

The molding member mounting unit according to the present invention includes a fixed shaft 11, a rotating shaft 21 rotatably provided on an outer side of the fixed shaft 11, and radially disposed along a circumference of the rotating shaft 21. A plurality of horizontal bars 22, a drive sprocket 24 disposed at intervals on the rotating shaft 21, and the horizontal bar 22 is rotatably provided, the lower end is engaged with the drive sprocket 24. Molding mounting portion 31 is mounted to the molding member 1 is mounted on the top.

The fixed shaft 11 is formed to have a constant length and one end is inserted into the holder 65 provided in the molding member coating apparatus 4 to be described later. The block 12 is fastened to one end of the fixed shaft 11 to prevent rotation of the fixed shaft 11 when the block 12 is inserted into the holder 65. That is, the outer surface of the block 12 is partially cut to correspond to the shape of the holder 65, so that the fixed shaft 11 in the state in which the fixed shaft 11 is inserted into the holder 65 Does not rotate relative to the holder 65.

The rotating shaft 21 is formed of a hollow shaft, so that the fixed shaft 11 is inserted therein. At this time, the rotating shaft 21 and the fixed shaft 11 is inserted to be rotatable with each other, the inner diameter of the rotating shaft 21 is formed larger than the outer diameter of the fixed shaft 11, the rotating shaft 21 and the fixed shaft 11 The rotation shaft 21 and the fixed shaft 11 are rotatable relative to each other by inserting the bearing through the bearing.

End portions of the fixed shaft 11 and the rotating shaft 21 are both ends of the molding member mounting unit according to the present invention. That is, as shown in Figure 3, both ends of the molding member mounting unit according to the present invention is one end of the fixed shaft and one end of the rotating shaft, respectively.

The horizontal bar 22 is formed to be approximately equal to the length of the rotating shaft 21, the through hole 22a is formed so that the molding mounting portion 31 to be described later is inserted at intervals in the longitudinal direction of the horizontal bar 22.

The horizontal bars 22 are provided in plural and are radially disposed at intervals in the rotation direction of the rotation shaft 21 along the circumference of the rotation shaft 21. Each horizontal bar 22 has both ends connected to the rotating shaft 21, so that the horizontal bars 22 and the rotating shaft 21 are integrated. At this time, the disk 23 is fastened to both ends of the rotating shaft 21, and both ends of the horizontal bar 22 are fastened to the disk 23, so that the rotating shaft 21 and the horizontal bar 22 are integrally formed. It is desirable to.

The rotary shaft 21 is provided with a power transmission means for rotating the molding mounting portion 31 to be described later in a direction perpendicular to the rotary shaft 21 when the rotary shaft 21 is rotated. The sprocket 24 is provided, and the molding mounting part 31 demonstrates by using the driven sprocket 34 as an example.

The driving sprocket 24 is fastened to the rotary shaft 21 and rotates integrally with the rotary shaft 21 when the rotary shaft 21 is rotated. The driving sprocket 24 is provided in plural at intervals along the axial direction of the rotating shaft 21 on the rotating shaft 21, so that the plurality of driving sprockets 24 simultaneously rotate when the rotating shaft 21 is rotated.

The molding mounting part 31 is engaged with the driving sprocket 24 to receive power from the driving sprocket 24, and the molding mounting part 31 itself rotates, and the molding member 1 mounted at the tip of the molding mounting part 31 is rotated. ) Rotates about the molding mounting portion 31.

Looking at the configuration of the molding mounting portion 31 in more detail, the connecting shaft 33 is rotatably provided in the horizontal bar 22 through the horizontal bar 22, the upper portion of the connecting shaft 33 The molding member 1 is temporarily mounted to be mounted while the molding member 1, which is a coating object, is coated, and has a driven sprocket 34 that is engaged with the driving sprocket 24.

The connecting shaft 33 is inserted into the through hole 22a formed in the horizontal bar 22 to rotate in a direction perpendicular to the rotation shaft 21 in the through hole 22a of the horizontal bar 22. have. At this time, it is preferable to reduce friction during rotation of the connecting shaft 33 by interposing a bearing in the through hole 22a.

A mounting tip 32 for mounting the molding member 1 to be coated is formed at an upper end of the connecting shaft 33. The mounting tip 32 of the form exposed from the horizontal bar 22 is fixed to the upper end of the mounting tip 32, so that the molding member 1 can be easily detached, the lower portion is elastically supported The metal piece may be provided.

In this case, although the molding member 1 to be directly coated on the mounting tip 32 may be directly mounted, as shown in FIG. 2, the molding member 1 is inserted through the mounting hole 2 in the middle. It is preferable to insert the mounting fixture 2 into the mounting tip 32 so that the molding member 1 is inserted into the mounting tip 32.

In addition, the lower end of the connecting shaft 33 is provided with a driven sprocket 34 to be engaged with the drive sprocket 24, the mounting tip 32 is rotated by the drive of the drive sprocket 24.

Therefore, the rotating shaft 21 and the connecting shaft 33 are intersecting with each other, and power is transmitted through the driving sprocket 24 and the driven sprocket 34. In addition, since power is transmitted through the driving sprocket 24 and the driven sprocket 34, the molding mounting part 31 can be rotated by transmitting power with little power.

Since the molding mounting portion 31 is provided in plural and provided in plural along the longitudinal direction of each horizontal bar 22, each horizontal bar 22 is disposed radially around the rotation shaft 21, A plurality is provided along the axial direction of the rotary shaft 21 and the circumferential direction of the rotary shaft 21.

On the other hand, the molding member mounting unit is coated with a coating source is deposited on the driving portion, that is, the rotary shaft 21, the drive sprocket 24 and the driven sprocket 34, etc., can inhibit the driving. In order to prevent this, the cover 41 is preferably provided on the outside of the horizontal bar (22). The cover 41 covers the outer side of the molding member mounting unit in a state in which a through hole is formed to allow the mounting tip 32 to be spaced apart from each other, thereby preventing the coating source from being coated onto the driving part of the cover 41.

The molding member mounting unit of the present invention having the configuration as described above is mounted inside the molding member coating apparatus to coat a coating source on the injection molded injection molding to complete the molding member.

Referring to the molding member coating apparatus according to the present invention through Figures 5 and 6, the fixed gear 53 is fixed to the inside of the frame 52 forming the outer shape of the coating chamber 51, and the fixed gear 53 A driving shaft 61 rotatably provided through the inside of the rotating shaft, a rotating plate 62 fastened to the lower end of the driving shaft 61, and radially provided at intervals between the rotating plate 62 and the molding member mounted. The other end of the unit is fastened, the holder 65 is inserted into the connecting portion 63 and the block 12 of the molding member mounting unit at an angular interval in which the connecting portion 63 is rotated by the fixing gear 53 is inserted. Is formed, and is provided concentric with the rotating plate 62, and includes a rotary ring 64 to rotate integrally with the rotating plate 62 connected to the rotating plate 62.

The fixed gear 53 is provided in a form fixed to the frame 52 of the coating chamber 51, because the coating source is diverged from the bottom due to the technical characteristics of coating the coating source by vapor deposition, the fixed gear 53 is It is to be installed on the top of the coating chamber (51). At this time, the fixed gear 53 is preferably such that the teeth (down) is directed downward using a crown gear (crown gear).

The drive shaft 61 is connected to a drive motor (not shown) of the fixed gear 53 to be rotated by the drive motor, and is provided to penetrate the center of the fixed gear 53.

The rotating plate 62 is rotatably provided at the lower end of the driving shaft 61, and rotates the rotating plate 62 integrally with the driving shaft 61.

The connecting portion 63 is for connecting the rotating shaft 21 and the fixed gear 53 of the molding member mounting unit 3, and the fixed block 63a is provided at a predetermined interval on the rotating plate 62 and the fixed A rotating gear 63b is provided to penetrate the block 63a to be fitted to the fixed gear 53, and a coupler 63c is formed at the other end so that the rotary gear 63b and the coupler 63c are formed. Coaxially connected

Here, the rotary gear (63b) is provided with a pinion, it is preferable to be engaged with the fixed gear 53 provided with the crown gear. However, the fixed gear 53 and the rotary gear 63b are not limited thereto, and may be configured using a structure capable of transmitting power at right angles, for example, a bevel gear, a helical bevel gear, or the like.

The coupler 63c has one end of the rotating shaft 21 of the molding member mounting unit inserted therein to rotate coaxially with the rotary gear 63b.

The rotating plate 64 is provided concentrically with the rotating plate 62, and the rotating plate 62 and the rotating ring 64 are coupled to the rotating plate 62 and the rotating ring 64 through an arm 66 to rotate the rotating plate ( 62 and the rotating ring 64 is a structure that rotates at the same time.

In addition, the rotation ring 64 is provided with a holder 65 at an angular interval in which the connecting portion 63 is installed, the block fastened to the end of the fixed shaft 21 of the molding member mounting unit to the holder 65 Allow (12) to be accepted. At this time, in order to prevent the block 12 inserted into the holder 65 from rotating, a part of the outer surface of the block 12 is cut, and the inside of the holder 65 to correspond to the cutting surface of the block 12. By processing the, the fixed shaft 11 of the molding member mounting unit has a structure fixed to the rotary plate 62 and the rotary ring 64.

The molding member mounting unit described above is mounted between the rotary plate 62 and the rotary ring 64.

Using the molding member coating apparatus provided with a molding member mounting unit as described above will be described for the process of coating a coating source of a desired color on the molding member (1) in the injection molding.

The molding member 1, which is a coating object, is mounted on the distal end portion of the molding mounting portion 31 provided on the molding member mounting unit 3, that is, the mounting tip 32 by using the mounting hole 2. As shown in FIG. 2, by using the mounting tool 2, one side of the molding member 1 is inserted into one end of the mounting tool 2, and inserting it into the mounting tip 32, thereby molding the coating object. The member 1 is mounted inside the molding member coating apparatus 4.

5 and 6 show that the molding member 1 is not mounted, but each of the mounting tips 32 mounts the molding member 1. Each molding member mounting unit 3 provided in the molding member coating apparatus 4 is provided with a molding member 1 in the axial direction and the circumferential direction of the molding member mounting unit 3, respectively. It is possible to coat the member 1.

In addition, although the cover 41 is not illustrated in some molding member mounting units 3 in FIG. 5, each molding member mounting unit 3 has a cover 41 in order to prevent the coating source from being deposited on the driving part. Is preferably provided.

In the state in which the molding member 1 is mounted for each mounting tip 32 of each molding member mounting unit, tin, nickel, continually as shown by the arrow 'V' at the bottom of the coating chamber 51 in a vacuum state. The coating source is deposited on the rotating molding member 1 by rotating the molding member mounting unit in the state of vaporizing and dissipating the coating source, which is a metal material such as aluminum or an alloy material mixed therewith, thereby depositing the coating source on the outer surface of the molding member 1. Allow the coating source to be coated.

Here, the rotational state of the molding member mounting unit in the molding member coating apparatus can be classified into three types.

First, in the coating chamber 51, a molding member mounting unit mounted radially, that is, radially, of the drive shaft 61 is rotated. When the drive shaft 61 is rotated, the rotary plate 62 and the rotary ring 64 is mounted, the molding member mounting unit is rotated, it is rotated in the direction shown by '①'.

As a result of this rotation, each molding member 1 passes through the entire area of the coating chamber 51 evenly because it is as if it revolves around the drive shaft 61.

Secondly, while the molding member mounting unit rotates about the fixed shaft 11, the molding member 1 rotates the fixed shaft 11 in the vertical direction, and rotates in the direction shown by '②'. do.

When the molding member mounting unit rotates around the drive shaft 61, as described above, the molding member mounting unit rotates around the drive shaft 61. At this time, the rotating member 63b is engaged with the fixed gear 53 while the molding member mounting unit rotates about the drive shaft 61. The molding member mounting unit rotates around the drive shaft 61. In the process, the rotary gear 63b rotates with respect to the fixed gear 53.

At this time, since the rotary shaft 21 is coaxially connected with the rotary gear 63b and is rotatable with respect to the fixed shaft 11, the molding member mounting unit rotates about the fixed shaft 11. Accordingly, the molding member 1 mounted on the mounting tip 32 has upper and lower sides with respect to the surface where the rotating surface of the molding member mounting unit, that is, the shaft center of the fixed shaft 11, rotates around the driving shaft 61. Have alternating movements.

Third, when the connecting shaft 33 of the molding member mounting unit is rotated, the molding member 1 is rotated about the connecting shaft 33 to rotate in the direction shown in '③'.

When the rotating shaft 21 rotates, the drive sprocket 24 coupled to the rotating shaft 21 rotates together with the rotating shaft 21. When the driving sprocket 24 rotates, the molding mounting portion 31, ie, the driven sprocket 34 at the lower end of the molding mounting portion 31, is engaged with the driving sprocket 24. When the molding mounting part 31 rotates in this way, the tip of the molding mounting part 31, that is, the mounting tip 32 fastened to the mounting tip 32, causes the molding member 1 to rotate about the connecting shaft 33. .

At this time, the mounting tips 32 facing each other rotate in opposite directions to each other. Since the mounting tips 32 facing each other rotate by the same drive sprocket 24, they rotate in opposite directions.

As described above, since the molding member 1, which is the coating object, rotates about the driving shaft 61, the fixed shaft 11, and the connecting shaft 33, respectively, the molding member 1 is diverged while being raised below the coating chamber 51. The coating source may be evenly coated on the molding member 1. Since the molding member 1 rotates in the directions of ①, ②, and ③ in the state where the coating source is diverted from the bottom inside the coating chamber, the molding member 1 is repeatedly faced perpendicularly to the direction in which the coating source is diverted. The coating source can be coated evenly over the entire surface.

Thus, by using the molding member 1 coated with the coating source as a whole, it is possible to decorate the outer edge of the living goods, such as a mobile phone as shown in FIG. In particular, in a communication device such as a mobile phone, since the outer surface of the molding member 1 is uniformly coated by a coating source, the electromagnetic wave generated inside may be shielded by the coating source of the coated metal material.

Although FIG. 1 and FIG. 2 show a molding member 1 provided to decorate the side of a mobile phone, the present invention is not limited thereto. However, the present invention is not limited thereto. It can be used in an article, and the coating object is not limited to plastic injection molding, and is not limited to materials such as glass, metal, and the like.

That is, the molding member mounting unit and the molding member coating apparatus using the same according to the present invention can be applied to a technical field for coating a coating source of a metallic material on an outer skin.

According to the molding member mounting unit of the present invention and the molding member coating apparatus using the same, as described above, by rotating the injection molded molding member in each direction, the coating source is released from the coating chamber during the molding process during the rotating process By facing directly with, a molding member coated with a coating source in a desired color can be completed.

Therefore, by coating the coating source evenly on the outer surface, it is possible to make the surface of various living articles have an excellent gloss and a metallic texture.

In addition, the sprocket is used to drive each molding member, so that each molding member can be rotated even with little power during driving.

Claims (6)

Fixed shaft, A rotating shaft formed of a hollow shaft and having the fixed shaft inserted therein and rotatably provided with respect to the fixed shaft; A plurality of horizontal bars disposed radially around the rotation shaft and having through holes formed at intervals; A plurality of drive sprockets fastened at intervals on the rotation shaft; A molding member mounting unit having a molding member mounted on an upper end thereof, the lower end being coupled to the driving sprocket and including a plurality of molding mounting parts rotatably provided in the through hole of the horizontal bar. The method of claim 1, The molding mounting portion, A mounting tip formed at the top to insert the molding member, A driven sprocket formed at a lower end thereof to be engaged with the driving sprocket; And a connecting shaft connecting the mounting tip and the driven sprocket and penetrating the horizontal bar so as to be rotatable. The method of claim 1, Molding member mounting unit, characterized in that the cover is further provided to cover each horizontal bar to the outside of the plurality of horizontal bars. A fixed gear provided at an upper portion of the coating chamber; A rotating plate fastened to a lower end of a drive shaft provided to be rotatable through the inside of the fixed gear; A connecting portion radially provided at intervals on the rotating plate and engaged with the fixed gear to rotate; A rotating ring connected concentrically with the rotating plate and rotating concentrically with the rotating plate, One end is fastened to the connection portion, the other end is fastened to the rotary ring, molding member coating apparatus including a molding member mounting unit for rotating the molding member attached to the outside by the rotation of the rotating plate. The method of claim 4, wherein The molding member mounting unit, A fixed shaft accommodated in a holder provided at one end of the block provided at the rotary ring, It is formed of a hollow shaft, the fixed shaft is inserted therein is rotatably provided with respect to the fixed shaft, one end of the rotating shaft is fastened to the connecting portion, A plurality of horizontal bars disposed radially around the rotating shaft and having through holes formed at intervals; A plurality of drive sprockets fastened at intervals on the rotation shaft; A mounting tip is formed at an upper end to insert a molding member, and a lower end is formed with a driven sprocket engaged with the driving sprocket, and the mounting tip and the driven sprocket are connected to a connecting shaft to be rotatably provided on the horizontal bar. Molding member coating apparatus comprising a mounting portion. The method according to claim 4 or 5, The connecting portion may include a fixed block radially provided at a predetermined angle to the rotating plate, a rotating gear rotatably provided on the fixed block and engaged with the fixed gear, and coaxially with the rotating gear and the front end of the rotating shaft. Molding member coating apparatus comprising a coupler coupled with.

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