KR101700289B1 - Apparatus and method for manufacturing case - Google Patents
Apparatus and method for manufacturing case Download PDFInfo
- Publication number
- KR101700289B1 KR101700289B1 KR1020150082804A KR20150082804A KR101700289B1 KR 101700289 B1 KR101700289 B1 KR 101700289B1 KR 1020150082804 A KR1020150082804 A KR 1020150082804A KR 20150082804 A KR20150082804 A KR 20150082804A KR 101700289 B1 KR101700289 B1 KR 101700289B1
- Authority
- KR
- South Korea
- Prior art keywords
- abrasive
- terminal case
- nozzle
- module
- case
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
- A45C2011/002—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00 for portable handheld communication devices, e.g. mobile phone, pager, beeper, PDA, smart phone
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- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The case manufacturing apparatus of the present invention comprises a processing unit for removing a burr formed at a boundary between the metal region and the resin region in a terminal case having a metal region including a metal on one side and a resin region including a synthetic resin together; A putter for forming a plurality of putty layers on one surface of the terminal case from which the burrs have been removed; And a painting unit painting a paint on one side of the terminal case on which the putty layer is formed.
Description
The present invention relates to an apparatus and a method for manufacturing a terminal case.
The terminal is provided with a case for the protection of the internal device and the safety of the user.
The inner surface of the terminal case faces the various electronic devices constituting the terminal, and the outer surface of the terminal case faces the external environment.
The process of manufacturing such a terminal case may include a painting process for improving the durability, corrosion resistance, and appearance of the case. However, in reality, it may be difficult to satisfy a paint condition for improving durability and the like.
Korean Patent Registration No. 1342793 discloses a process for manufacturing a metallic cellular phone case that is additionally mounted on four side edges of a cellular phone, but does not mention a process for a case that does not satisfy the coloring condition.
The present invention provides a case manufacturing apparatus and method for painting or redraining a terminal case.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise forms disclosed. Other objects, which will be apparent to those skilled in the art, It will be possible.
The case manufacturing apparatus of the present invention comprises a processing unit for removing a burr formed at a boundary between the metal region and the resin region in a terminal case having a metal region including a metal on one side and a resin region including a synthetic resin together; A putter for forming a plurality of putty layers on one surface of the terminal case from which the burrs have been removed; And a painting unit painting a paint on one side of the terminal case on which the putty layer is formed.
The case manufacturing apparatus of the present invention comprises a compression module in which compressed air is generated; A receiving portion for receiving the abrasive; And a discharge module for spraying the abrasive toward a painting surface completed in the terminal case using the compressed air, wherein the discharging module is capable of spraying the abrasive along a third direction inclined to the painting surface have.
The case manufacturing apparatus of the present invention includes a first nozzle and a second nozzle which are disposed apart from each other along the longitudinal direction of the object and in which the abrasive is sprayed toward the object, They can be formed to face each other at an angle.
The case manufacturing method of the present invention includes polishing a painted surface of the terminal case so that at least one existing putty layer remains in a terminal case painted with paint on n putty layers (where n is a natural number of 2 or more) ; Stacking an additional putty layer on the existing putty layer such that the putty layer of the terminal case satisfies n; And painting the paint on the additional putty layer.
The case manufacturing apparatus of the present invention includes a processing unit, a putting unit, and a painting unit, through which a terminal case having a metal area and a resin area together can be effectively painted.
Further, according to the present invention, a sand blast portion for polishing the terminal case to a state in which at least one putty layer remains intact may be included. As a result, it is possible to easily recycle or re-color the terminal case which has been judged to be defective in painting.
The present invention can provide a polishing method using an abrasive in order to peel a paint and putty layer from a terminal case in which a plurality of putty layers are formed and a paint is painted on the putty layer.
Accordingly, the recycling cost and the recycling time of the terminal case can be reduced. Therefore, it is possible to acquire the terminal case in which the re-coloring is completed in a short period of time through a simple process.
In order to realize the polishing using the abrasive, the discharge module facing each other can be applied. Therefore, the polishing method, which has been difficult in the past, can be applied to the repainting process.
1 is a schematic view showing a case manufacturing apparatus of the present invention.
2 is a schematic view showing a terminal case to be painted in the case manufacturing apparatus of the present invention.
3 is a schematic view showing a cross section of a terminal case painted by the case manufacturing apparatus of the present invention.
Fig. 4 is a schematic view showing the sand blast part. Fig.
5 is a schematic view showing a terminal case polished by an abrasive sprayed in a direction orthogonal to the machining plane of the terminal case.
6 is a side view schematically showing a case manufacturing apparatus of the present invention.
7 is a schematic view showing a terminal case polished by an abrasive sprayed in a direction tilted with respect to the machining surface of the terminal case.
8 is a side view schematically showing another case manufacturing apparatus of the present invention.
9 is a schematic view showing a terminal case polished by two discharge modules.
10 is a schematic view showing a traveling direction of the abrasive sprayed from each nozzle having an improper placement relationship.
11 is a flowchart showing a case manufacturing method of the present invention.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The sizes and shapes of the components shown in the drawings may be exaggerated for clarity and convenience. In addition, terms defined in consideration of the configuration and operation of the present invention may be changed according to the intention or custom of the user, the operator. Definitions of these terms should be based on the content of this specification.
1 is a schematic view showing a case manufacturing apparatus of the present invention.
The case manufacturing apparatus shown in Fig. 1 may be a device for painting a case provided in a terminal such as a cellular phone.
The
The case of a mobile terminal such as a mobile phone and a notebook may require grip feeling, corrosion resistance, and aesthetic appearance considering durability and ease of use that can withstand various impacts. In order to satisfy such a requirement, the
In the case where the painted surface on which the paint is painted in the
However, if the
Even if the
2 is a schematic view showing a
In the case of a mobile communication terminal such as a smart phone, it is preferable that the case is configured to pass radio waves for wireless communication. However, if the case is made of metal, the wireless communication function of the terminal can be paralyzed similarly to the principle that wireless communication is impossible in the elevator. In order to solve such a communication trouble, the
If the radio wave hole is left as it is, external foreign matter can flow into the inside of the terminal, so that the radio wave hole can be covered with a synthetic resin material that does not interfere with radio waves. According to this, a
The following problems may occur when the surface on which the
First, the
Particularly, since burrs are formed at the boundary between the
Damage to the flatness due to thermal expansion is not limited to the initial stage of the painting operation, but can be continuously induced in the course of the painting operation. For example, the process of forming the
Next, a measure may be required to allow the putty to adhere to the
The case manufacturing apparatus of the present invention may include a
Referring back to FIG. 1, the
For example, the
The
That is, the
The
Thus, according to the case manufacturing apparatus of the present invention, paint can be painted flat on the terminal since burrs are removed and a plurality of putting layers are formed.
However, when the total thickness of the
3 is a schematic view showing a cross section of the
3, a case where n number of putty layers 40 are formed on the
The putting
However, since the thermal deformation of the
As a result, even if a plurality of putty layers 40 are formed after removing the burrs, the
The
The first method may include a step of melting the
The second method may include a step of peeling off the painted paint and performing the painting again based on that the above-mentioned poor judgment is due to a paint defect, not a mechanical defect of the
A plasma peeling process or a chemical peeling process using a chemical agent may be applied to put the
The case manufacturing apparatus of the present invention may include a
The
In spite of such a simple and rapid polishing process, application of a plasma process or a chemical process, which consumes a large amount of resources and requires a long processing time, is intended to maintain the flatness of the
When the colored surface of the
The
First, a configuration that satisfies the y-axis flatness will be described.
4 is a schematic view showing the
The
The
For exfoliation of the paint, a goldsmith, glass bead, steel ball, sus ball, or the like may be used as an abrasive. However, it has been confirmed that 60 ~ 100 rooms are suitable for peeling paint in a specific experimental environment. Here, 60 rooms can mean a size in which 60 pieces can be placed on a square having a width of 1 inch and a length of 1 inch. Likewise, a room of 100 can mean a size that can accommodate 100 in the upper square.
When the
Further, in order to further improve the flatness, the plurality of nozzles may be arranged at equal intervals in an installation area longer than the length of the
The edge of the terminal case is not polished and the flatness between the edge area and the inner area of the
On the other hand, it is possible to consider a case where the abrasive is sprayed through a single nozzle extending from the beginning along the second direction (2) instead of a plurality of nozzles having discharge ports with a small cross-sectional area. That is, the abrasive may be sprayed through one nozzle extending in the second direction (2) beyond the length of the terminal case (10). However, the experimental results show that y - axis flatness is not satisfied enough. This is presumably due to the fact that the amount or speed of the abrasive output from the arbitrary point y1 in the nozzle is different from that output from y2.
The
The abrasive is sprayed toward the
As the
In the above description, the configuration in which the y-axis flatness is improved by the
Next, a configuration that satisfies the x-axis flatness will be described.
The
As a result, the
The case manufacturing apparatus of the present invention can improve the x-axis flatness of the painted surface through the
5 is a schematic view showing a terminal case polished by an abrasive sprayed in a direction orthogonal to the machining plane of the
When a plurality of nozzles through which the abrasive is sprayed are provided at predetermined intervals along the y-axis and the discharge port of the nozzle is circular, the spots where the polishing is performed on the machined surface will have the same shape as a circular spot as shown in Fig. To improve the x-axis flatness, it is recommended that the area of the ridges be large. To this end, the nozzle may be spaced away from the point of impact on the working surface, or the outlet of the nozzle may become larger. However, according to this, since the striking force of the abrasive for striking the machined surface is lowered, it may be difficult to polish the machined surface.
Therefore, it is necessary to expand the nozzle portion in the state of having the same discharge range and the same discharge port as the nozzle forming the nozzle portion of FIG.
For example, the
6 is a side view schematically showing a case manufacturing apparatus of the present invention. The case manufacturing apparatus disclosed in Fig. 6 may be the
When the painted surface is parallel to the xy plane, the third direction? May be a direction inclined to the xy plane.
If the
Accordingly, if the nozzle through which the abrasive 90 is discharged from the
According to the abrasive sprayed along the direction tilted to the paint surface as described above, the abrasive area of the paint surface can be expanded as shown in Fig. Particularly, when the third direction? Is inclined in the first direction?, The polishing region is expanded in the x-axis direction and the x-axis flatness can be improved. In some cases, the y-axis flatness can also be improved in this process.
7 is a schematic view showing a terminal case polished by an abrasive sprayed in a direction tilted with respect to the machining surface of the
In other words, the abrasive particles sprayed in the direction tilted to the painted surface may form a droplet or a fan-shaped abrasive portion on the painted surface. The thus formed abrasive zone ⓙ can be more thinly peeled off the wider area of the
On the other hand, in order to further improve the flatness and speed up the polishing time, the
8 is a side view schematically showing another case manufacturing apparatus of the present invention.
For example, the
The abrasive discharged from the
At this time, the first position a, the third position c, the fourth position d, and the second position b may be sequentially arranged at different positions in the longitudinal direction of the
The distance L2 between the third position? And the fourth position? May be shorter than the length L1 of the
The direction of ejection of the abrasive sprayed from each
The case manufacturing apparatus of the present invention may include a
The object may be, for example, a
The
For example, the ejecting direction of the
The
In addition, the object may be disposed between the specific point e and the
According to this configuration, the abrasive jetted from the
As a result, according to the present invention, the abrasive sprayed from a specific nozzle can continuously hit one of the sections from the third position? To the fourth position? By the abrasive or compressed air injected from another nozzle. According to this, since the number of abrasive particles striking the object during the set time is increased, the polishing rate can be increased and the abrasive consumption can be minimized. Further, according to the present embodiment, since the wide section from the third position? To the fourth position? Is thinly polished, the flatness of the machined surface can be improved.
According to the abrasive sprayed from the nozzle facing each other as described above, the polishing area can be further expanded as shown in Fig.
9 is a schematic view showing the
In other words, the abrasive discharged from the discharge module facing each other can strike a rectangular area from the third position? To the fourth position?, In a plan view. Therefore, the portion to be polished by the abrasive in the
In order to realize the above effect, the inclination angle between each nozzle and the object was found to be advantageous to satisfy the experiment result of 30 to 60 degrees. The first gap z1 between the nozzles and the second gap z2 between the respective nozzles and the object are set so that the abrasive sprayed from the
10 is a schematic view showing a traveling direction of the abrasive sprayed from each nozzle having an improper placement relationship.
If z1 and z2 are not appropriate, y1 and y2 may be intersected between each nozzle and the object as shown in Fig. According to this, the abrasive sprayed along y1 may collide with the abrasive or compressed air flowing along y2 to lose the striking force. Even if the abrasive article strikes the object, the strike range is not limited to the section from the third position? To the fourth position?, But it is difficult to predict where to hit the object. Therefore, the flatness can be lowered.
If z1 is too small, the phenomenon shown in Fig. 10 occurs. If z1 is too large, a problem may occur. For example, if z1 is too large, the abrasive sprayed along the y2 from the
If z2 is too small, the abrasive sprayed from the
Conversely, if z2 is too large, the abrasive force of the abrasive decreases, and y1 and y2 may intersect with each other before they contact the object as shown in Fig.
It is preferable that the appropriate range of z1 and z2 satisfy the range in which the abrasive sprayed from the
It is preferable that the distance between each nozzle and the impact position is L2 or more on the virtual line y1 or y2 connecting the impact positions of the respective nozzles and the object. It has been experimentally confirmed that when the above conditions are satisfied, the abrasive is recycled smoothly.
11 is a flowchart showing a case manufacturing method of the present invention.
The case manufacturing method of the present invention may include a polishing step (S 510), a lamination step (S 520) and a painting step (S 530).
The grinding step S 510 is performed in such a manner that at least one existing
The polishing step S 510 is a process performed in the
The stacking step S 520 may include the step of laminating the
The painting step (S 530) may include painting the paint on the topmost additional putty layer (40). The
The above-described terminal manufacturing method may be for recycling the
The
In consideration of this, the
While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Accordingly, the true scope of the present invention should be determined by the following claims.
10 ...
30 ...
33 ...
40 ...
110 ... processing
150 ...
210 ... discharging
212 ...
214 ...
250 ... receiving
Claims (16)
A receiving module in which an abrasive is accommodated; And
And a discharge module for spraying the abrasive from the terminal case toward the painted surface on which the painting process is completed using the compressed air,
The discharge module discharges the abrasive along a third direction inclined to the painting surface,
The terminal case is transported along a first direction,
The nozzle from which the abrasive is discharged in the discharging module is disposed at the first position,
The abrasive discharged from the nozzle strikes the terminal case at a third position,
Wherein the first position and the third position are different in the first direction.
A receiving module in which an abrasive is accommodated; And
And a discharge module for spraying the abrasive from the terminal case toward the painted surface on which the painting process is completed using the compressed air,
The discharge module discharges the abrasive along a third direction inclined to the painting surface,
And a transfer module for transferring the terminal case to the discharge module in a first direction,
A plurality of nozzles through which the abrasive is discharged are provided in the discharge module along a second direction perpendicular to the first direction,
Wherein the discharge module reciprocates linearly along the second direction,
The third direction being perpendicular to the second direction and being inclined in the first direction,
Wherein the plurality of nozzles are arranged at equal intervals in an installation area longer than the length of the terminal case in the second direction,
Wherein the linear reciprocation range of the discharge module is determined to be equal to or greater than a distance between the nozzles and within a range that is equal to or smaller than a difference in length between the installation area and the terminal case in the second direction.
A receiving module in which an abrasive is accommodated; And
And a discharge module for spraying the abrasive from the terminal case toward the painted surface on which the painting process is completed using the compressed air,
The discharge module discharges the abrasive along a third direction inclined to the painting surface,
Wherein the discharging module includes a first discharging module disposed at a first position and a second discharging module disposed at a second position,
The abrasive discharged from the first discharge module strikes the terminal case at a third position,
The abrasive discharged from the second discharge module strikes the terminal case at the fourth position,
Wherein the first position, the third position, the fourth position, and the second position are arranged in order at different positions on the longitudinal direction of the terminal case.
And the distance between the third position and the fourth position is shorter than the length of the terminal case.
Wherein the discharge module includes a first nozzle and a second nozzle which are disposed apart from each other along the longitudinal direction of the object and in which the abrasive is sprayed toward the object,
Wherein the first nozzle and the second nozzle are formed to face each other at an oblique angle.
Wherein the ejecting direction of the first nozzle and the ejecting direction of the second nozzle are in a line-symmetrical relationship with the axis of symmetry being an orthogonal line orthogonal to the processing surface of the object.
The first nozzle injects the abrasive along a first imaginary line,
The second nozzle injects the abrasive along a second imaginary line,
The first virtual line and the second virtual line meet with each other at a specific point,
Wherein the object is disposed between the specific point and the first nozzle, or disposed between the specific point and the second nozzle.
Wherein an inclination angle between each of the nozzles and the object is between 30 degrees and 60 degrees,
Wherein a first gap between each of the nozzles and a second gap between each of the nozzles and the object is determined within a range in which the abrasive jetted from the first nozzle and the abrasive jetted from the second nozzle can strike the object together Case manufacturing apparatus.
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KR1020150082804A KR101700289B1 (en) | 2015-06-11 | 2015-06-11 | Apparatus and method for manufacturing case |
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KR1020150082804A KR101700289B1 (en) | 2015-06-11 | 2015-06-11 | Apparatus and method for manufacturing case |
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KR20160146121A KR20160146121A (en) | 2016-12-21 |
KR101700289B1 true KR101700289B1 (en) | 2017-01-26 |
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CN114340264B (en) * | 2021-12-31 | 2023-12-05 | Oppo广东移动通信有限公司 | Shell, manufacturing method thereof and electronic equipment |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006263881A (en) * | 2005-03-25 | 2006-10-05 | Daido Castings:Kk | Sandblasting device of casting |
KR100854299B1 (en) * | 2007-07-20 | 2008-08-26 | (주)유니젯 | Coating apparatus and coating method |
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KR20060082296A (en) * | 2005-01-12 | 2006-07-18 | 신성일 | Image printing method for mobile communication terminal unit |
KR101342793B1 (en) | 2012-05-31 | 2013-12-19 | 윤국영 | Manufacturing method and apparatus for cellular phone case mounted on edge of the same cellular phone |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006263881A (en) * | 2005-03-25 | 2006-10-05 | Daido Castings:Kk | Sandblasting device of casting |
KR100854299B1 (en) * | 2007-07-20 | 2008-08-26 | (주)유니젯 | Coating apparatus and coating method |
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