KR20070029403A - An apparatus for polishing decoration frame of mobile phone - Google Patents

Abstract

An apparatus for polishing a decoration frame is provided to uniformly polish the decoration frame and secure the quality of the product by polishing the decoration frame according to the rotation of the polishing rollers. An apparatus for polishing a decoration frame(26) is composed of a worktable standing-installed with a predetermined height; a main shaft(16) formed with a flange part(18); a turn table(20) fitted on the upper surface of the flange part; plural jig holders(22) installed along with the outer edges on the upper surface of the turn tale with a predetermined gap; a driving pulley(24) standing-installed in the upper part of the worktable; plural jigs(28) integrally combined with a driven pulley(32) on the lower end of a jig shaft(30), wound by the driving pulley and an electric belt(34), connected to a vacuum pump and a hose, and formed with plural vacuum suction holes at the area where the frame is placed; plural polishing roller members for polishing the surface of the decoration frame; an operating cam; and a gate valve pushed by the projected operating cam to block the vacuum pressure.

Description

Decorative frame polishing machine {AN APPARATUS FOR POLISHING DECORATION FRAME OF MOBILE PHONE}

1 is an overall perspective view showing a decorative frame polishing apparatus according to the present invention,

2 is a front view of a decorative frame polishing apparatus according to the present invention,

3 is an enlarged cross-sectional view of main parts of a decorative frame polishing apparatus according to the present invention;

Figure 4 is an enlarged plan view showing a state that the jig is installed on the turntable in the decorative frame polishing apparatus according to the present invention,

5 is an enlarged perspective view illustrating a state in which a jig is mounted on a jig holder in a decorative frame polishing apparatus according to the present invention;

Figure 6 is a partially enlarged perspective view showing the front and rear conveyance guide structure of the abrasive roller member in the present invention,

Figure 7 is an exploded perspective view showing the vertical height adjustment and left and right angle control structure of the polishing roller member in the present invention,

8 is a front sectional view showing a state in which a hood and a duct are installed on a work target of the decorative frame polishing apparatus according to the present invention.

* Description of the symbols for the main parts of the drawings *

12: workbench 16: main shaft

20: turntable 22: jig holder

24: driving pulley 28: jig

32: driven pulley 44: roller drive motor

46: polishing roller 58: operation cam

60: gate valve.

The present invention relates to an apparatus for polishing a decorative frame, and more particularly, in the case of performing polishing to polish the surface of a decorative frame applied to various mobile communication devices such as a mobile phone or a PDA, the decorative frame may be a turntable of a target object ( It is installed on the turn table and is polished while being contacted by a plurality of polishing rollers for a predetermined time while being adsorbed by vacuum pressure on a plurality of jigs that are rotated in place. When it reaches the front of the jig, the rotation of the jig is stopped and the vacuum pressure applied to the jig is cut off so that the worker can lift the decorative frame so that the quality of the product can be maintained uniformly and the productivity can be remarkably improved. Significantly lower the rate of defects and prevent workers from being exposed to dust. It relates to a decorative frame polishing apparatus.

In general, a display unit or an operation panel is provided in a main body of various mobile communication devices such as a mobile phone or a PDA, and a thin metal decorative frame is installed along the outline of the display unit or the operation panel.

Decorative frames applied to various mobile communication devices such as these are manufactured to a predetermined shape and size, and then subjected to a polishing process to polish the surface in a processing process.

In order to grind the decorative frame, a worker polishes a surface by contacting a decorative frame fixed with a jig one by one with a single polishing roller rotated by a motor in a state where a worker fixes the decorative frame with a separate jig. Therefore, there is a problem that productivity is extremely poor.

In addition, since the glossiness of the surface of the decorative frame depends on the skill of the operator, there is a serious problem that the quality of the product is not uniform and the probability of defects is very high.

In addition, since the worker sits at the front of the polishing roller during polishing, the worker may be exposed to dust generated when the decorative frame and the polishing roller come into contact with each other, which may harm the health of the worker. There is a problem that there is a high risk of injury due to contact with the polishing roller.

The present invention is to solve such a conventional problem, the object of the decorative frame is to be polished to polish the surface of the decorative frame applied to various mobile communication devices such as mobile phones or PDAs It is installed on the turntable so as to be polished while being contacted by a plurality of polishing rollers for a predetermined time while being adsorbed by vacuum pressure on a plurality of jigs that are rotated in place, and the jigs are rotated together with the turntable and the front of the operator When the jig stops, the vacuum pressure applied to the jig is stopped and the worker can lift the decorative frame so that the quality of the product can be maintained uniformly and the productivity can be remarkably improved. To significantly reduce the incidence of defects and prevent workers from being exposed to dust. It is to provide a new decorative frame polishing apparatus.

In order to achieve the above object, the decorative frame polishing apparatus according to the present invention is a work table which is installed standing up to a predetermined height with respect to the installation surface; A main shaft in which the flange is formed at a height spaced apart from the upper end by being rotated in place to the left or the right by the action of an external force in a state of being fitted to protrude upwardly from the inside of the work surface to the upper center; A turntable having a predetermined diameter which is fixed and coupled in a state where it is fitted and mounted on an upper surface of the flange portion on the main shaft and rotated in the same direction as the main shaft; A plurality of jig holders installed at regular intervals along an outer edge of the upper surface of the turntable; A driving pulley which is installed in an upper part of a work table corresponding to a front of a worker's working position and rotated in place by power transmitted from the outside; The driven pulley is integrally coupled to the lower end of the jig shaft extending downward and inserted into the jig holder, and rotated in place to the left or the right by the rotational force of the driving pulley in a state wound by the driving pulley and the electric belt. A plurality of jigs connected to the vacuum pump and the hose and formed with a plurality of vacuum suction holes in the decorative frame on which the decorative frame is fixed in a vacuum suction method; Polishing roller which is installed at a predetermined angle from the upper surface of the worktable spaced apart from the edge of the turntable, and polished the surface of the decorative frame that is rotated in a predetermined direction by the action of external force and vacuum-sucked on the jig to rotate in place. Absence; An operation cam installed to protrude over a predetermined angular range from the lower part of the turntable corresponding to the front of the worker toward the worker; When the jig reaches the front position of the operator in a state installed on the vacuum line connected to the jig, it comprises a gate valve that is pressed by the operating cam protruding toward the operator to block the vacuum pressure applied to the jig. .

In the present invention, the polishing roller member is a supporter of a predetermined height is installed to be installed so as to adjust the vertical height and the vertical angle from the upper surface of the work surface; A roller driving motor driven and controlled according to the application of current in a state where the linear movement of the front and rear is installed on the bracket coupled to the upper end of the supporter; It has a feature consisting of a polishing roller that is rotated in place under the rotational force of the roller drive motor.

In the present invention, the supporter is installed standing up to a predetermined height from the upper surface of the workbench, a screw portion is formed along the upper inner circumferential surface, the lower supporter formed with a through hole in the upper predetermined position on the outer circumferential surface; An upper supporter screwed to the screw portion of the lower supporter in a state extending downward from a bottom center of the bracket; It has a feature consisting of a position control bolt to adjust the height and left and right angles in a manner in close contact with the outer circumferential surface of the upper supporter in the state fastened through the through hole on the lower supporter.

In the present invention, the upper surface of the bracket and the left and right ends of the roller driving motor mounting plate are formed in a cross-sectional structure of the "c" shape that can be engaged with each other, so that the roller driving motor mounting plate is linearly moved with respect to the bracket.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an overall perspective view showing a decorative frame polishing apparatus according to the present invention, Figure 2 is a front view of a decorative frame polishing apparatus according to the present invention.

3 is an enlarged cross-sectional view showing main parts of a decorative frame polishing apparatus according to the present invention, and FIG. 4 is an enlarged plan view showing a state where a jig is installed on a turntable in the decorative frame polishing apparatus according to the present invention.

5 is an enlarged perspective view illustrating a state in which a jig is mounted on a jig holder in a decorative frame polishing apparatus according to the present invention, and FIG. 6 is a partially enlarged perspective view illustrating a front and rear conveyance guide structure of the abrasive roller member in the present invention.

In addition, Figure 7 is an exploded perspective view showing the vertical height adjustment and the left and right angle adjustment structure of the polishing roller member in the present invention, Figure 8 is a view showing a state in which the hood and the duct is installed on the working object of the decorative frame polishing apparatus according to the present invention. It is a cross section.

Referring to this, the decorative frame polishing apparatus 10 according to the present invention is applied to a plurality of polishing rollers in a state in which the decorative frame is adsorbed by a vacuum pressure on a plurality of jigs (Jig) that are installed on the turntable of the object to be rotated in place. It is configured to be polished while being in contact for a predetermined time.

In addition, when each jig is rotated together with the turntable and reaches the front of the worker, the jig is stopped and the vacuum pressure applied to the jig is cut off, and the worker can lift the decorative frame.

To this end, the decorative frame polishing apparatus 10 according to the present invention is provided with a work table 12 which is installed standing up to a predetermined height.

The main shaft 16 having a hollow 14 formed along the longitudinal center line is inserted into the central portion of the upper surface from the inside of the working table 12 so as to protrude upward from the upper surface of the working table 12.

The main shaft 16 is configured to rotate in place to the left or the right by the driving of a motor (not shown), the flange portion 18 is formed at a height spaced apart from the top by a predetermined distance.

The upper surface of the flange portion 18 on the main shaft 16 is fixed and coupled in a state where the disk-shaped turntable 20 having a predetermined diameter is mounted so as to rotate in the same direction as the driving direction of the main shaft 16. .

A plurality of jig holders 22 are installed at the outer edges of the upper surface of the turntable 16 at regular intervals, and the upper inner side of the work table 12 corresponding to the front of the working position of the worker is rotated by a rotational force transmitted from the outside such as a motor. Drive pulley 24 rotated in place is installed vertically.

On the other hand, each jig holder 22 is coupled to the jig 28 for holding the decorative frame 26 is rotatably fitted in place, jig shaft 30 of a predetermined length downward from the bottom center of the jig 28. ) Is extended, and the driven pulley 32 is integrally coupled to the lower end of the jig shaft 30.

The driven pulley 32 and the driven pulley 32 coupled to each jig shaft 30 are configured to be wound around a single transmission belt 34. In the state where the jig 28 reaches the front of the operator, Located on the same straight line as the drive pulley 24 is configured to stop the transmission belt 34 is wound in place rotation.

The jig 28 is connected to an external vacuum pump (not shown) and a hose, and a plurality of vacuum suction holes 36 are formed at a portion where the decorative frame 26 is placed, so that the decorative frame 26 is vacuum suction type. It is configured to be fixed.

In the present invention, a plurality of polishing roller members for polishing the surface of the decorative frame 26 rotated in place by vacuum suction on each jig 28 on the upper surface of the work table 12 spaced apart from the edge of the turntable 20 by a predetermined distance. 38 is provided spaced at a predetermined angle.

The polishing roller member 38 includes a supporter 40 of a predetermined height that is installed to be installed vertically upwardly and vertically adjustable from the upper surface of the worktable 12, and the bracket is coupled to the upper supporter 40. And a roller driving motor 44 which is driven and controlled according to the application of current in a state in which the front and rear linear movements are installed on the 42 and the polishing roller 46 which is rotated in place by the rotational force of the roller driving motor 44. do.

In this polishing roller member 38, the supporter 40 is installed at a predetermined height from the upper surface of the work table 12, and a screw portion is formed along the upper inner circumferential surface, and the through hole 48 is disposed at the upper predetermined position on the outer circumferential surface. The lower supporter 50 is formed, and the upper supporter 52 is screwed to the screw portion of the lower supporter 50 in a state extending downward from the bottom center of the bracket 42, the lower supporter 50 It includes a position control bolt 54 to adjust the height and left and right angles in a manner in close contact with the outer circumferential surface of the upper supporter 52 in the state fastened through the through-hole 48 on the upper.

In addition, the upper surface of the bracket 42 and the left and right both ends of the roller driving motor mounting plate 56 is formed of a cross-sectional structure of the "c" shape that can be engaged with each other roller drive motor mounting plate 56 relative to the bracket 42. This linear movement is configured.

On the other hand, from the lower portion of the turntable 20 corresponding to the front of the operator toward the worker is installed the operation cam 58 protrudes over a predetermined angle range.

In addition, when the jig 28 reaches the front position of the worker on the vacuum line connected to the jig 28, the vacuum pressure applied to the jig 28 is blocked by being pressed by the operation cam 58 protruding toward the worker. The gate valve 60 is configured to be installed.

In addition, as shown in FIG. 8, a hood 62 is installed above the work table 12 to prevent dust generated during the polishing process of the decorative frame 26 from scattering to the outside. A duct 64 is provided from the center to the outside, and a blowing fan 66 is installed at a predetermined position inside the duct 64 to forcibly discharge dust generated on the work table 12.

The operation of the present invention made as described above is as follows.

As shown in Figs. 1 to 8, in the case where the worker decorative frame 26 is to be polished, the jig holder 22 on the turntable 20 is first applied on each jig 28 in a state where a vacuum pressure is applied. When the decorative frame 26 to be polished is placed on the decorative frame 26, the decorative frame 26 is vacuum-adsorbed on the jig 28 as the vacuum pressure applied to the jig 28 acts through the vacuum suction hole 36.

When the device is operated in this state, as the main shaft 16 is rotated by the action of the motor, the turntable 20 is rotated in a predetermined direction, and the electric belt 34 and the jig shaft according to the rotation of the driving pulley 24 are rotated. As the driven pulley 32 on 30 is rotated, the jig 28 is rotated left or right in place.

In addition, as the roller driving motor 44 constituting the polishing roller member 38 is driven to rotate the polishing roller 46 and continuously rubs against the decorative frame 26 mounted on the jig 28 on the turntable 20. The surface of the decorative frame is polished uniformly.

After the decorative frame 26 is polished according to the rotation of the turntable 20, the jig 28, and the polishing roller 46 in this way, if any jig reaches the front of the operator, the driven pulley 32 of the jig Rotation is stopped because is separated from the transmission belt 34.

At the same time, as the gate valve 60 installed on the vacuum line of the jig 28 located in front of the operator is pressed by the contact with the protruding operation cam 58, the vacuum pressure applied to the jig is cut off, thereby the decorative frame. The adsorption state of (26) is released.

Accordingly, the operator can lift the decorative frame 26 is completed.

This operation is performed continuously, the rotational speed of the turntable 20, the jig 28 and the polishing roller 46 can be adjusted by separate control.

On the other hand, in the case where the polishing operation for the decorative frame 26 is made continuously, the polishing roller 46 may be worn, so that the friction against the decorative frame may not reach a desired level.

When the polishing roller 46 is worn as described above, the height and the front and rear distance of the entire polishing roller member 38 are adjusted so that the contact with the decorative frame 26 is made intimately.

In order to adjust the height of the polishing roller member 38, first loosen the position control bolt 54, and then rotate the upper supporter 52 so that the lower supporter 50 enters the inside of the lower supporter 50 or moves upwards. Then, tighten the position control bolt 54 again.

In addition, when the front and rear distance of the polishing roller member 38 is to be adjusted, since the bracket 42 and the roller driving motor mounting plate 56 are coupled to each other by a cross-sectional structure having a "c" shape, the roller driving motor The mounting plate 56 may be linearly moved back and forth with respect to the bracket 42 and adjusted to a desired position.

On the other hand, dust generated during the polishing process of the decorative frame 26 is not scattered to the outside by the hood 62 surrounding the work table 12, the duct 64 by the suction action of the blowing fan 66 immediately after the occurrence. It is sucked into the inside and discharged to the outside.

According to the present invention, a large amount can be polished for a short time because a plurality of decorative frames are polished while being rubbed with a plurality of polishing rollers while being adsorbed by vacuum adsorption on a rotating jig mounted on a turntable. There is an effect that the productivity is significantly improved.

In addition, since the polishing of the decorative frame is performed according to the rotation of the polishing roller, the glossiness can be improved to improve the quality.When the decorative frame reaches the worker's position, the rotation is stopped, and the vacuum pressure is cut off, Polished decorative frames can be easily replaced.

In addition, the dust generated during the polishing operation is not scattered to the outside by the hood, it is discharged to the outside through the duct immediately by the action of the blowing fan, there is no fear of harming the health of the operator.

Claims (4)

A worktable which is installed at a predetermined height with respect to the installation surface; A main shaft in which the flange is formed at a height spaced apart from the upper end by being rotated in place to the left or the right by the action of an external force in a state of being fitted to protrude upwardly from the inside of the work surface to the upper center; A turntable having a predetermined diameter which is fixed and coupled in a state where it is fitted and mounted on an upper surface of the flange portion on the main shaft and rotated in the same direction as the main shaft; A plurality of jig holders installed at regular intervals along an outer edge of the upper surface of the turntable; A driving pulley which is installed in an upper part of a work table corresponding to a front of a worker's working position and rotated in place by power transmitted from the outside; The driven pulley is integrally coupled to the lower end of the jig shaft extending downward and inserted into the jig holder, and rotated in place to the left or the right by the rotational force of the driving pulley in a state wound by the driving pulley and the electric belt. A plurality of jigs connected to the vacuum pump and the hose and formed with a plurality of vacuum suction holes in the decorative frame on which the decorative frame is fixed in a vacuum suction method; Is installed at a predetermined angle spaced from the upper surface of the worktable spaced a predetermined distance outside the edge of the turntable, a plurality of polishing the surface of the decorative frame rotated in a predetermined direction by the action of the external force is vacuum suction on the jig rotated in place A polishing roller member; An operation cam installed to protrude over a predetermined angular range from the lower part of the turntable corresponding to the front of the worker toward the worker; When the jig reaches the front position of the operator in a state installed on the vacuum line connected to the jig, it characterized in that it comprises a gate valve which is pressed by the operating cam protruding toward the operator to block the vacuum pressure applied to the jig Decorative frame grinding machine. The method of claim 1, The polishing roller member is a supporter of a predetermined height is installed to be installed so as to adjust the vertical height and the vertical angle from the upper surface of the work surface; A roller driving motor driven and controlled according to the application of current in a state where the linear movement of the front and rear is installed on the bracket coupled to the upper end of the supporter; Decorative frame polishing apparatus, characterized in that consisting of a polishing roller that is rotated in place by the rotational force of the roller drive motor. The method of claim 2, The supporter is installed standing up to a predetermined height from the upper surface of the workbench, the lower supporter is formed with a screw portion along the upper inner peripheral surface, the through hole formed in a predetermined position on the upper peripheral surface; An upper supporter screwed to the screw portion of the lower supporter in a state extending downward from a bottom center of the bracket; And a position control bolt for adjusting height and left and right angles in a manner of being in close contact with the outer circumferential surface of the upper supporter in a state of being fastened through the through hole on the lower supporter. The method of claim 1 The upper surface of the bracket and the left and right both ends of the roller driving motor mounting plate is composed of a cross-section structure of the "c" shape that can be engaged with each other decorative frame polishing apparatus, characterized in that the roller driving motor mounting plate is configured to move linearly with respect to the bracket.

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