KR20150039058A - Buffing Method Of Mobile Case And Buffing System For The Same - Google Patents

Abstract

Disclosed are a buffing method for cell phone cases comprising the steps of grinding the surface of cell phone and removing foreign substances remaining on the surface of cell phone and a buffing system therefor. The buffing method and buffing system for cell phone cases according to the present invention can maintain a fixed grinding quality and shorten the time for processing the surface, which remarkably improves the production yield and productivity. Additionally, mass production is possible, which follows the trend of cell phone′s mass consumption, and also the amount of supply and production can be smoothly managed; therefore, it is helpful for establishing a production schedule for all products.

Description

TECHNICAL FIELD [0001] The present invention relates to a mobile phone case buffering method,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile phone case buffering method for processing a surface of a mobile phone case and a buffing system for the same, and more particularly to a mobile phone case buffering method for smoothing the surface of a mobile phone case, .

Due to the development of communication technology, mobile phones including smart phones have become a necessity of modern people, and current mobile phones are performing functions of not only communication but also computer functions.

Accordingly, diversification of functions for the mobile phone in accordance with the taste of the consumer is required, and design of the mobile phone is demanded, and development of a design having an attractive image is proceeding.

Generally, a cellular phone case, which protects electronic devices inside the cell phone and forms the appearance of the cell phone, is manufactured by injection molding. The cell phone case, which is molded by a plastic product, is coated or coated with a cell phone case The process proceeds.

As described above, even when the surface of the cellular phone case is coated / painted, the surface roughness remains unchanged. Therefore, the polishing step of polishing the surface of the cellular phone case and smoothly polishing the surface of the cellular phone case, that is, the buffing step, .

 However, since handbag case buffing by the manual operation of the operator depends on the skill of the operator and careful attention, it is difficult to maintain uniform quality and it takes a long time for the buffing, which is a problem in that it is not suitable for mass production.

That is, the existing mobile phone case buffering process is difficult to maintain uniform quality without skilled workers, and it takes a long time to perform the buffing operation, resulting in low productivity.

Conventionally, the buffering of the mobile phone case is manually performed. In the past, after the buffering operation is completed, the coating process is performed in a state where the mobile phone case is not cleaned. As a result, due to minute foreign substances such as dust, There is a problem that defects are caused.

Korean Patent Publication No. 10-2011-0032099 (Mar. 30, 2011) Korean Patent Publication No. 10-2008-0079018 (Aug. 29, 2008)

SUMMARY OF THE INVENTION The present invention has been proposed in order to solve the above-described problems of the prior art, and it is an object of the present invention to provide a mobile phone case buffering method and a buffering system for the mobile phone case, which can smoothly process the surface of the mobile phone case while maintaining a uniform quality, The purpose is to provide.

Another object of the present invention is to provide a mobile phone case buffering method capable of more effectively removing foreign matter remaining on the surface of a mobile phone case during a buffering process and a buffing system therefor.

In order to solve the above-mentioned object, the present invention provides a method for polishing a surface of a mobile phone case, comprising: a polishing step of polishing a surface of a mobile phone case; And a cleaning step of removing foreign matter remaining on the surface of the mobile phone case.

The polishing step includes a wet polishing step of polishing the surface of the mobile phone case while supplying cooling water to the mobile phone case.

The cleaning step includes a first cleaning step of preliminarily cleaning the mobile phone case and a second cleaning step of washing the mobile phone case after the first cleaning step.

And, it is preferable that the washing liquid used for the secondary washing is controlled to be recycled for the primary washing, which is the preliminary washing step.

Preferably, the washing machine further comprises a water removing step of removing the washing liquid adhering to the cell phone case after the second washing, and the water removing step is preferably performed by air injected at a high pressure.

Preferably, the method further includes a drying step of removing moisture remaining on the surface of the mobile phone case by hot air.

The drying step is performed by directly supplying hot air to the surface of the mobile phone case, and the static electricity is removed together with the surface of the mobile phone case during the drying step.

Of course, it is preferable that static electricity is removed from the cellular phone case by ionized air.

According to another aspect of the present invention, there is provided a mobile phone case comprising a buffer device for polishing a surface of a mobile phone case, and a cleaning device for removing foreign matter remaining on the surface of the mobile phone case, Buffing system.

The buffing device comprising: A grinding wheel for applying friction to the surface of the mobile phone case as a workpiece, a jig mounting base on which a mobile phone case fixing jig is mounted, and a cooling water discharger for spraying the cooling water to the mobile phone case.

The cleaning apparatus includes a primary cleaning unit for preliminarily cleaning the cellular phone case and a secondary cleaning unit for cleaning the cellular phone casing that has passed through the primary cleaning unit in earnest.

The mobile phone case buffing system of the present invention may further include a water removing unit for removing the washing liquid adhering to the cell phone case passed through the secondary washing unit with high-pressure air.

The water removal unit is provided with an air knife for spraying high-pressure air to detach the cleaning liquid from the cell phone case, and for preventing the cell phone case from flowing due to high-pressure air sprayed from the air knife, It is preferable that a clamping means is provided together.

In the above-described configuration, the secondary cleaning unit is connected to a transfer pipe for sending the cleaning liquid used for the secondary cleaning to the primary cleaning liquid tank so as to be utilized in the primary cleaning unit in which the primary cleaning is performed, It is preferable that a waste liquid duct for directly treating the washing liquid used for cleaning is connected to the car washing unit.

Preferably, the apparatus further comprises a drying device for removing moisture remaining in the cell phone case through the cleaning device.

The drying device includes a hot air supply device for supplying hot air for drying the mobile phone case.

The drying device may include an ionizer for removing static electricity from the surface of the mobile phone case during the drying process.

Meanwhile, the mobile phone case buffing system according to the present invention may further include a case loading device for automatically transferring the mobile phone case between processes and inputting the mobile phone case to a post-process, and a case unloading device for taking out the dried mobile phone case to the outside It is possible.

The mobile phone case buffering method and the buffing system therefor according to the present invention have the following effects.

First, according to the cellular phone case buffering method and the buffing system according to the present invention, since the polishing quality of the cellular phone case can be maintained at a predetermined level or more regardless of the skill of the operator and the time required for the surface treatment can be shortened, The yield can be greatly improved.

Second, according to the cellular phone case buffering method and the buffing system according to the present invention, it is possible to mass-produce the cellular phone according to the trend of mass consumption of the cellular phone, smoothly manage the production quantity and the supply quantity according to the mass production, It can be a great help in establishing a mass production schedule.

Thirdly, according to the cellular phone case buffering method and the buffing system according to the present invention, defective surface treatment such as deformation of the cellular phone case by heat during the polishing process can be reduced, and moisture remaining in the cellular phone case, The foreign matter such as fine dust can be reliably performed, so that the defects in the buffering process of the mobile phone case can be greatly reduced and the quality of the final product can be improved.

Fourthly, according to the mobile phone case buffering method and the buffing system according to the present invention, the foreign matter such as dust generated during the buffing process can be more surely performed, so that the coating failure that occurred in the subsequent coating process can be relieved.

1 is a block diagram schematically illustrating a cellular phone case buffing system according to the present invention.
Fig. 2 is a block diagram schematically showing the detailed configuration of the mobile phone case buffering system of Fig. 1
3 is a perspective view showing a buper of a mobile phone case buffering system according to the present invention.
FIG. 4 is a view showing a coupling relation between the jig for fixing the mobile phone case and the mobile phone case in the buffing device shown in FIG.
5 is a perspective view and a front view showing the positional relationship between the polishing wheel and the mobile phone case in the buffing device shown in FIG.
FIG. 6 is a perspective view showing a buffing device of a mobile phone case buffing system according to another embodiment of the present invention. FIG.
7 is a perspective view and a front view showing the positional relationship between the polishing wheel and the mobile phone case in the buffing device shown in Fig.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, preferred embodiments of the present invention in which the object of the present invention can be specifically realized will be described with reference to the accompanying drawings. In describing the present embodiment, the same designations and the same reference numerals are used for the same components, and additional description thereof will be omitted in the following.

1 to 5, a mobile phone case buffering system 10 according to the present invention includes a buffering device 100 for polishing the surface of a mobile phone case 130, And a cleaning device 200 for removing residual foreign matters with a cleaning liquid.

Therefore, the cell phone case buffering method according to the present invention includes a polishing step of polishing the surface of the cell phone case 130, a cleaning step of removing foreign matters remaining on the surface of the cell phone case 130 with a cleaning fluid (e.g., water) .

The polishing step includes a wet polishing step of polishing the surface of the cell phone case while supplying cooling water to the cell phone case 130. The buffing apparatus 100 includes a jig mounting base 143 on which a grinding wheel 120 and a mobile phone case fixing jig 140 are mounted to frictionally apply a surface of a mobile phone case 130 as a workpiece, (Not shown) that sprays cooling water to the cooling water 130. [

The washing apparatus 200 includes a first washing unit 210 for preliminary washing and a second washing unit 220 for washing a mobile phone case that has passed through the first washing unit 210, And a water removing unit 230 for discharging the cleaning liquid, which has passed through the secondary cleaning unit 220, into the cellular phone case by high-pressure air.

At this time, the water removing unit 230 is provided with an air knife 231 for spraying high-pressure air to remove moisture from the cell phone case 130, and the air knife 231 is provided with high- It is preferable to provide a clamping means 232 for pressing or holding the mobile phone case 130 to prevent the mobile phone case 130 from flowing. The clamping unit 232 may be a roller that moves up and down to press the cell phone case 130 and may be a lapping pad for vacuum-fixing the cell phone case 130.

The secondary washing unit 220 is provided with a transfer pipe 222 for sending the washing liquid used for the secondary washing to the primary washing liquid tank 212 so as to be utilized in the primary washing unit 210 in which the primary washing is performed And a control valve 223 for controlling pipeline opening and closing is provided on the transfer pipe 222.

A waste liquid pipe 213 is connected to the primary cleaning unit 210 for immediately treating the cleaning liquid used for cleaning. A control valve 214 for controlling pipeline opening and closing is also provided in the waste liquid pipe 213.

The primary washing unit 210 and the secondary washing unit are respectively provided with water dispensers 211 and 221 for supplying a washing solution.

Meanwhile, the cellular phone case buffering method of the present invention may further include a drying step for completely removing moisture (water) remaining on the surface of the cellular phone case 130 after the washing step is completed by hot air.

1 and 2, the mobile phone buffing system of the present invention may further include a drying device 300 for performing the drying step. In the washing device 200 and the drying device 300, May be provided in one apparatus to constitute a cleaning apparatus.

The drying apparatus 300 includes a hot air supply unit 320 for supplying hot air to the mobile phone case 130 so that the mobile phone case 130 having undergone the cleaning step is dried.

That is, the drying apparatus 300 of the present invention completely removes moisture that has not been removed by the air knife 231 constituting the cleaning apparatus 200 by hot air.

The hot air supply unit 320 may include an upper nozzle for discharging air to one side (upper part) of the mobile phone case and a lower nozzle for discharging air to the other side (lower part) of the mobile phone case have.

Instead of supplying hot air from the hot air supply unit 320 directly to the mobile phone case 130 adjacent to the top and bottom surfaces of the mobile phone case through the nozzle, the drying temperature is adjusted to a desired temperature and the drying is performed Of course it is possible.

The temperature and the velocity of the air supplied for drying by the hot air supplier 320 can be appropriately selected in accordance with the process conditions, so that further explanation is omitted.

The drying device 300 is preferably provided with an ionizer 330 for removing static electricity from the surface of the mobile phone case during the drying process. However, the present invention is not limited thereto. That is, the ionizer may be provided separately from the drying apparatus 300, unlike the present embodiment.

Referring to FIG. 1, the mobile phone case buffering system according to the present invention may further include a case loading device 410 for automatically transferring the mobile phone case 130 between processes and inputting the mobile phone case 130 to a post-process.

Although not shown, a case loading device for automatically loading the mobile phone case 130 with the buffing device 100 to supply the mobile phone case 130 to the buffing device 100 is additionally provided Or a case unloading device (not shown) for automatically unloading the mobile phone case having been dried in the drying device 300 may be additionally provided.

Meanwhile, in constituting the actual cellular phone case buffing system, the system can be configured so that the washing apparatus 200 and the drying apparatus 300 are provided together in the washing apparatus, which is one apparatus, as described above, It is needless to say that the cleaning device and the drying device may be separated by separate devices in order to further strengthen the structure.

Hereinafter, embodiments of a buffing device, a cleaning device, and a drying device of a mobile phone case buffing system according to the present invention will be described in more detail with reference to FIGS. 1 to 5.

3 to 5, the buffing device 100 of the mobile phone case buffering system according to the present invention includes a grinding wheel 120 and a jig 140 for fixing the mobile phone case (hereinafter referred to as a jig) A jig mounting base 143 to be installed and a jig rotating unit 110 for rotating the jig.

The buffing device 100 is provided with a cooling water discharger (not shown) sprinkling cooling water on the cell phone case 130, in particular, a polishing portion abutting the polishing wheel 120, 130, that is, a pressure regulating unit 150 for regulating the pressure between workpieces.

The jig 140 includes a jig upper plate 141 covering the cell phone case 130 and a jig bottom plate 142 supporting the cell phone case 130. The cell phone case 130 includes a jig bottom plate 141, 142 and the jig top plate 141 and is fixed to the abrasive position of the buffing device 100 by the jig 140. [

The jig rotating unit 110 rotates the jig mounting base 143 on which the jig bottom plate 142 is installed so that the circumference of the mobile phone case 130 can be uniformly polished. At this time, the jig rotating unit 110 can rotate the jig mounting base 143 through a power transmission device such as a belt 160 or a chain. However, when the jig mounting base 143 is rotated on the axis of the motor of the jig rotating unit May be directly connected.

The grinding wheel 120 is coupled to the grinding wheel swivel 121 and configured to grind the surface of the mobile phone case 130 while rotating together with the grinding wheel swiveling base 121.

The grinding wheel 120 may include a brush type grinding unit capable of smoothly polishing the surface of the mobile phone case 130, such as a text wheel, a grinding wheel, a diamond wheel, a wool wheel, , The type of the polishing portion and the structure and size of the polishing wheel are not limited to specific ones.

The jig 140 is composed of a jig upper plate 141 and a jig bottom plate 142. A mobile phone case 130 as a work piece is mounted between the jig upper plate 141 and the jig bottom plate 142, do. The jig top plate 141 is connected to the jig fixing unit 111.

The jig fixing unit 111 is configured to rotate together with the jig top plate 141 when the jig 140 on which the mobile phone case 130 is mounted rotates together with the jig mounting base 143 do. The jig fixing unit 111 fixes the jig upper plate 141 to prevent the mobile phone case 130 from being detached from the jig 140.

The upper surface of the lower jig plate 142 is in contact with the cellular phone case 130 and a groove (not shown) is formed on the lower surface of the lower jig plate 142 for engagement with the jig mounting base 143, A mounting table 143 is fitted in a groove formed in the bottom surface of the lower jig plate 142.

The jig mounting base 143 is configured to implement the rotation of the jig during the polishing process and more specifically the rotation of the mobile phone case. The jig mounting base 143 is configured such that, when the jig mounting base 143 rotates, As shown in FIG.

The pressure regulating unit 150 is installed in the jig 140 so that the cell phone case 130 mounted on the jig 140 contacts the grinding wheel 120 at a constant pressure, (143). The pressure regulating unit 150 may be controlled by a numerical control program or other mechanical control. In this embodiment, the pressure regulating unit 150 may be a hydraulic or pneumatic cylinder or the like Can be implemented. Of course, the pressure regulating unit 150 may be configured to move the grinding wheel 120, particularly the grinding wheel swivel 121 back and forth.

The jig upper plate 141 and the lower jig plate 142 are preferably configured such that portions of the jig upper plate 141 and the lower jig plate 142 that abut on the mobile phone case 130 as a work piece are engaged with each other in a shape corresponding to the shape of the mobile phone case, It is preferable that a groove is formed in the center of the upper surface of the jig fixing part 111,

5, the grinding wheel 120 rotates together with the grinding wheel swivel 121 in association with the grinding wheel swivel 121, and the jig 140 rotates together with the jig mounting bracket 143.

Next, a mobile phone case buffering system according to another embodiment of the present invention will be described with reference to FIGS. 6 and 7. FIG.

FIG. 6 is a perspective view illustrating a mobile phone case buffering system according to another embodiment of the present invention, and FIG. 7 is a diagram illustrating a positional relationship between a polishing wheel and a mobile phone case in the buffing device 100 shown in FIG.

Referring to FIGS. 6 and 7, the buffing device 100 of the present embodiment basically includes the buffing device shown in FIG. 3 and the buffing device 100 shown in FIG. 3, except that the surface of a plurality of cellular phone cases 130 is configured to be polished at one time. The same structure is used. That is, the buffing device 100 of this embodiment can be arranged in a row on the jig mounting base 143 so that a plurality of cellular phone cases 130 can be simultaneously polished by one buffing device.

7, the cell phone case 130 is stacked in the multilayer (refer to 'A' portion) by the jig 140 and fixed, The thickness of the grinding wheel 120 may be increased in accordance with the number of the mobile phone cases, or a plurality of grinding wheels may be arranged in series (in a line) on the coaxial axis to simultaneously polish a plurality of mobile phone cases.

According to the present embodiment, the time required for the surface treatment can be shortened by polishing the plurality of cell phone cases at the same time, and the quality of the polishing of the cell phone case can be maintained at a certain level or more, .

As described above, according to the present invention, the present invention can be embodied in other specific forms without departing from the spirit and scope of the present invention. It is obvious to them.

Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

100: Buffing device 110: Jig rotating unit
120: grinding wheel 130: mobile phone case
140: jig 141: jig top plate
142: lower jig 150: pressure regulating unit
160: Belt 200: Cleaning device
210: primary washing unit 211: water dispenser
212: primary cleaning liquid tank 213: waste liquid duct
214, 223: Control valve 220: Secondary cleaning unit
221: water dispenser 222:
230: water removal unit 231: air knife
232: clamping means 300: drying device
320: Hot Air Supply Unit 330: Ionizer
410: Case loading device

Claims (21)

A polishing step of polishing the surface of the mobile phone case;
And a cleaning step of removing foreign matter remaining on the surface of the mobile phone case. The method according to claim 1,
Wherein the polishing step includes a wet polishing step of polishing the surface of the mobile phone case while supplying cooling water to the mobile phone case. The method according to claim 1,
The cleaning step comprises:
A first cleaning step of preliminarily cleaning the cellular phone case,
And a second washing step of washing the mobile phone case after the first washing step in a full-fledged manner. The method of claim 3,
Wherein the washing liquid used for the secondary washing is recycled for the primary washing, which is a preliminary washing step. 5. The method according to any one of claims 1 to 4,
Further comprising a water removing step of removing the washing liquid adhering to the cell phone case after washing. 6. The method of claim 5,
The water-
And the air is blown by the high pressure air. The method according to claim 1,
Further comprising a drying step of removing moisture remaining on the surface of the mobile phone case by hot air. 8. The method of claim 7,
Wherein the drying step is performed by directly supplying hot air to the surface of the mobile phone case. 8. The method of claim 7,
And removing the static electricity on the surface of the mobile phone case during the drying step. The method of claim 9, wherein
Wherein the static electricity is removed from the cellular phone case by ionized air. A buffing device for polishing the surface of the mobile phone case,
And a cleaning device for removing foreign matter remaining on the surface of the mobile phone case. 12. The method of claim 11,
The buffing device comprising:
A grinding wheel for applying friction to the surface of the mobile phone case as a workpiece,
A jig mounting base on which a mobile phone case fixing jig is installed,
And a cooling water discharger for spraying cooling water to the mobile phone case. 12. The method of claim 11,
The cleaning device includes:
A first cleaning unit for preliminarily cleaning the mobile phone case,
And a secondary washing unit for washing the cell phone case passed through the primary washing unit in earnest. 14. The method of claim 13,
Further comprising a water removal unit for removing the cleaning liquid from the cell phone case which has passed through the secondary cleaning unit to high-pressure air. 15. The method of claim 14,
Wherein the water removal unit is provided with an air knife for spraying high-pressure air to detach the cleaning liquid from the cell phone case. 16. The method of claim 15,
And a clamping unit for fixing the cell phone case to prevent the cell phone case from flowing due to the high-pressure air ejected from the air knife. 14. The method of claim 13,
The secondary washing unit is connected to a transfer pipe for sending the washing liquid used for the secondary washing to the primary washing liquid tank so as to be utilized in the primary washing unit where the preliminary washing is performed,
And a waste liquid duct for directly treating the washing liquid used for washing is connected to the primary washing unit. 12. The method of claim 11,
And a drying device for removing moisture remaining in the mobile phone case through the cleaning device. 19. The method of claim 18,
The drying apparatus includes:
And a hot air supply unit for supplying hot air for drying the mobile phone case. 20. The method of claim 19,
The drying apparatus includes:
And an ionizer for removing static electricity from the surface of the mobile phone case during the drying process. 12. The method of claim 11,
And a case loading device for automatically transferring the mobile phone case between processes and inputting the mobile phone case to a post-process.

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