KR102076762B1 - Prism painting system - Google Patents

Abstract

The present invention relates to a prism painting system comprising: a paint supply unit having a drum formed on one surface of a paint layer made of liquid paint; a prism supply unit supplying a prism having a predetermined shielding area to a predetermined supply position; and a paint application unit including a gripper for gripping the prism disposed at the predetermined supply position, and an applicator for transferring the gripper to selectively apply the predetermined shielding area to the paint layer to apply the paint to the predetermined shielding area.

Description

Prism Painting System {PRISM PAINTING SYSTEM}

The present invention relates to a prism painting system.

Prism is one of the components of a camera for refracting light, and is mainly used to realize the function of capturing the small details by capturing the actual background size, such as the distance measurement of a TOF depth measuring camera.

The prism includes an incident surface on which light is incident, a reflective surface for reflecting and refracting light incident through the incident surface, an exit surface for emitting light refracted from the reflective surface, and the like.

By the way, part of light may be diffusely reflected on the reflective surface due to tolerances and other causes in the manufacturing process. In the related art, a method of effectively preventing some of the light diffusely reflected from the reflecting surface from being emitted from the prism through an area other than the effective area of the emitting surface has been proposed. There was a problem.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a prism painting system that can be improved to shield a region where a light path is distorted by light due to diffuse reflection, which is highly likely to be emitted.

Prism painting system according to a preferred embodiment of the present invention for solving the above problems, the paint supply unit having a drum formed on one surface of a paint layer made of liquid paint; A prism supply unit for supplying a prism having a predetermined shielding area to a predetermined supply position; And a gripper for holding a prism disposed at the predetermined supply position, and an applicator for transferring the gripper to selectively dip the predetermined shielding area onto the paint layer and apply the paint to the predetermined shielding area. It includes the paint coating unit provided.

Preferably, the paint supply unit further comprises a drive motor for rotating the drum about the rotation axis to spread the paint on the one surface.

Preferably, the paint supply unit further comprises a tool tip having a base plate disposed at a predetermined position to sweep the paint and spreading the paint on the one surface.

Preferably, the tool tip further includes an elevator for elevating the base plate and a guide wall for guiding the paint to the base plate so as to adjust an interval between the base plate and the one surface.

Preferably, the drum has a first protrusion that protrudes from the one surface about the rotation axis, and a second protrusion that protrudes from the one surface about the rotation axis and has a larger diameter than the first protrusion, The paint is received in the space between the first protrusion and the second protrusion.

Preferably, the base plate is disposed to be inserted into the interspace, the guide wall, the first guide wall extending from one end of the base plate to face the first protrusion, and the second protrusion facing the And a second guide wall extending from the other end of the base plate opposite to the one end.

Preferably, the driving motor rotates the drum in a predetermined rotational direction, and the base plate is gradually moved from a front end contacting the paint to a rear end contacting the paint later based on the predetermined rotational direction. It has a downwardly inclined structure in which the distance from one surface becomes small.

Preferably, the predetermined shielding area is provided in plural at predetermined intervals, and the applicator includes a rotating part for rotationally driving the gripper to selectively face any one of the predetermined shielding areas with the paint layer. Have

Preferably, the applicator further has a conveying part for conveying the gripper along at least one of the three axial directions.

Preferably, the drum is provided with a plurality of predetermined intervals, the applicator, the transfer portion and the rotating portion to selectively imprint the predetermined shielding areas on the paint layer formed on different drums of the respective drums, respectively Drive.

Preferably, the gripper has a gripping arm provided to hold a predetermined gripping area of the prism, and a driving unit for driving the gripping arm to hold or release the predetermined gripping area.

Preferably, the gripping arm has a first gripping arm provided so as to be able to coincide with any part of the predetermined gripping area, and a second gripping arm provided so as to be able to coincide with another part of the predetermined gripping area, The driving unit includes the first and second gripping arms such that the predetermined gripping area is sandwiched between the first and second gripping arms or spaced apart from the first and second gripping arms. To drive.

Preferably, the predetermined gripping area is defined to be spaced apart from the predetermined shielding area by a predetermined interval so that the predetermined shielding area is exposed to the outside when the predetermined gripping area is gripped by the gripping arm.

Preferably, the prism supply unit includes a first prism tray loaded with a plurality of prisms, a first tray feeder for supplying the first prism tray to the predetermined supply position, and the paint coating unit includes: When the first prism tray is disposed at the predetermined supply position, the prisms are individually gripped in a predetermined order to apply the paint to the predetermined shielding area.

Preferably, the prism supply unit includes a first tray loader in which a plurality of first prism trays are stacked in multiple stages, and the first tray loader in such a manner that one end of the multiple stages can be selectively disposed at a predetermined reference height. It further comprises a first elevator for lowering, wherein the first tray feeder is provided to selectively transfer the first prism tray disposed at any one end to the predetermined supply position.

Advantageously, said paint application unit reloads a prism with said paint applied to said predetermined shielding area to a first prism tray disposed at said predetermined supply position, and the prism with said paint applied to said predetermined shielding area. And a prism pick-up unit for picking up from the first prism tray disposed at the supply position.

Preferably, the prism pick-up unit includes a pick-up for picking up or unpicking the prism and a feeder for feeding the pick-up along a predetermined transfer path.

Preferably, a prism having a second prism tray on which a plurality of prisms unpicked from the prism pick-up unit are loaded at a predetermined recovery position, and a second tray feeder for recovering the second prism tray from the predetermined recovery position. It further includes a recovery unit.

Preferably, the prism recovery unit lifts and lowers the second tray stacker capable of stacking a plurality of second prism trays in multiple stages and the second tray stacker so that any one of the multiple stages can be disposed at a predetermined reference height. It is further provided with a 2nd elevator, The said 2nd tray feeder is provided so that a loading of the 2nd prism tray collect | recovered from the said collection position is possible at any one said end.

Preferably, the paint applying unit is a camera for re-delivering the prism with the paint applied to the predetermined shielding area to the supply position, and photographing the predetermined shielding area of the prism re-transmitted from the drum to the supply position. And an inspection unit for inspecting an application state of the paint based on the image information transmitted from the camera.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a prism painting system, wherein paint is applied to a shielding area through a stamping method in which a predetermined shielding area of the prism is imprinted on the paint layer, thereby shielding the shielding area. According to the present invention, it is possible to improve the optical performance of the prism by blocking a part of the light diffusely reflected from the reflecting surface through the shielding area.

1 is a plan view showing a schematic configuration of a prism painting system according to a preferred embodiment of the present invention.
FIG. 2 is a perspective view showing a schematic configuration of the prism painting system shown in FIG. 1. FIG.
3 is a perspective view of a prism;
4 is a side view of the prism shown in FIG. 3.
FIG. 5 is a rear view of the prism shown in FIG. 3. FIG.
FIG. 6 is a perspective view showing a schematic structure of the first paint supply unit shown in FIG. 1. FIG.
FIG. 7 is a perspective view of the first drum shown in FIG. 6. FIG.
8 is a perspective view from below of the first tool tip shown in FIG. 6;
9 is a perspective view showing a schematic structure of the prism supply unit shown in FIG.
FIG. 10 is a perspective view of the first prism tray shown in FIG. 9. FIG.
FIG. 11 is a view showing a prism loaded on the first prism tray shown in FIG. 9; FIG.
12 is a perspective view showing a schematic structure of the paint applying unit shown in FIG.
13 is a perspective view of the gripper shown in FIG.
FIG. 14 is a view showing a state in which a prism is gripped by the gripper shown in FIG. 13. FIG.
FIG. 15 is a view for explaining a method of applying paint to a first chamfer of a prism using the paint applying unit shown in FIG. 12. FIG.
FIG. 16 is a view for explaining a method of applying paint to a second chamfer of a prism using the paint applying unit shown in FIG. 12. FIG.
17 shows a schematic structure of the painting inspection unit shown in FIG.
18 is a view for explaining an installation position of the painting inspection unit illustrated in FIG. 17.
19 is a perspective view showing a schematic structure of the prism pickup unit shown in FIG.
20 is a perspective view showing a schematic structure of the pickup shown in FIG. 19;
21 is a perspective view showing a schematic structure of the prism recovery unit shown in FIG.
FIG. 22 is a flow chart illustrating a method of applying paint to a shielding area of a prism using the prism painting system shown in FIG. 1.

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. In adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used to refer to the same components as much as possible, even if displayed on different drawings. In addition, in describing the embodiments of the present invention, if it is determined that the detailed description of the related well-known configuration or function interferes with the understanding of the embodiments of the present invention, the detailed description thereof will be omitted.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only for distinguishing the components from other components, and the nature, order or order of the components are not limited by the terms. In addition, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

1 is a plan view showing a schematic configuration of a prism painting system according to a preferred embodiment of the present invention, Figure 2 is a perspective view showing a schematic configuration of a prism painting system shown in FIG.

1 and 2, a prism painting system 1 according to a preferred embodiment of the present invention includes a paint supply unit 10, 20 for supplying paint, and a prism supply unit for supplying a prism P ( 30 and a paint which applies paint to the shielded area of the prism P by dipping the shielded area of the prism P supplied by the prism supply unit 30 onto the paint supplied by the paint supply units 10 and 20. The coating unit 40, the painting inspection unit 50 for inspecting a state in which paint is applied to the shielding area of the prism P, and the prism pickup unit 60 for picking up the prism P in which the paint is applied to the shielding area. ), And a prism recovery unit 70 for recovering the prism P released from the prism pickup unit 60.

3 is a perspective view of the prism, FIG. 4 is a side view of the prism shown in FIG. 3, and FIG. 5 is a rear view of the prism shown in FIG. 3.

The kind of prism P which can apply | coat paint to a shielding area using the prism painting system 1 is not specifically limited. For example, as illustrated in FIGS. 3 to 5, the prism P may include an incident surface A on which light is incident and a reflective surface on which light incident through the incident surface A is reflected and refracted ( It may be a triangular prism including B), and the emission surface (C) for emitting the light refracted by the reflection surface (B). Here, the shielding region refers to a region of the prism P that is preferably shielded so that light is not emitted. The prism P may have at least one shielding area depending on the kind, use, and the like.

Generally, the chamfering part is formed in the corner part of a prism by chamfering process. However, when some light that is diffusely reflected from the reflective surface B and the optical path is distorted is not emitted through the emission surface C and is emitted through the chamfering portion, the optical performance of the prism P may be degraded.

However, as shown in FIG. 4, when the prism P is the triangular prism described above, some of the light that is diffusely reflected from the reflecting surface B may have the incident surface A and the emitting surface C among the chamfered portions. Chamfering portion (hereinafter referred to as' first chamfer AC ') formed in the corner portion contacted and chamfering portion formed in the corner portion where the reflecting surface (B) and the exit surface (C) contact (hereinafter,' second chamfering portion) (BC) ', etc.). Thus, when the prism P is a triangular prism, the first chamfer A-C and the second chamfer B-C are shielded regions of the prism P, and are preferably shielded by paint.

For convenience of explanation, hereinafter, the prism P system is a triangular prism, and the first chamfer AC and the second chamfer BC are shielding regions of the prism P as an example. ) Will be described.

6 is a perspective view showing a schematic structure of the first paint supply unit shown in FIG. 1, FIG. 7 is a perspective view of the first drum shown in FIG. 6, and FIG. 8 is a first tool tip shown in FIG. 6. A perspective view from below.

First, the paint supply units 10 and 20 are devices for supplying paint for applying to the shielding region of the prism P.

In the case where the prism P includes a plurality of shielding areas, the prism painting system 1 is provided with a plurality of paint supply units 10 so that the shielding areas can be individually shielded in different paint supply units 10, 20. , 20). For example, when the prism P is a triangular prism and the prism P includes two shielding regions, a first chamfer AC and a second chamfer BC, the prism painting system 1 The silver may include two paint supply units 10 and 20, such as a first paint supply unit 10 and a second paint supply unit 20.

As illustrated in FIG. 1, the first paint supply unit 10 and the second paint supply unit 20 may have a predetermined distance in consideration of the rotation radius and the transfer range of the first gripper 41 to be described later. It is installed to be spaced apart from each other. Such a 1st paint supply unit 10 and the 2nd paint supply unit 20 have the same structure mutually except an installation position. Therefore, for the convenience of description, the description of the specific configuration of the second paint supply unit 20 will be omitted.

As shown in FIG. 6, the first paint supply unit 10 includes a first drum 11 having a paint layer formed on one surface of a liquid paint supplied from an external paint source, and a first drum 11. To the first drive motor 12 to spread the paint thinly on one surface of the first drum 11 by rotating about the axis of rotation, and a first tool tip to thinly spread the paint on one surface of the first drum 11 ( 13) and a first gap adjuster 14 for adjusting a gap between the first tool tip 13 and the first drum 11.

As shown in FIG. 7, the first drum 11 has a disc shape having a predetermined diameter, and a rotating shaft (not shown) provided at the center thereof is axially coupled with the shaft of the first drive motor 12. The first drum 11 may include a first protrusion 11a protruding from the upper surface of the rotary shaft, and a second protrusion protruding from the upper surface of the rotary shaft with a larger diameter than the first protrusion 11a. 11b) and the like.

As shown in FIG. 7, the first protrusion 11a may have a disk shape having a predetermined diameter, and the second protrusion 11b may have a ring shape having a large diameter at the first protrusion 11a. have. Then, in the space between the first protrusion 11a and the second protrusion 11b, a first accommodating portion 11c having a predetermined depth and a ring shape and having an open upper portion may be formed. The first container 11c may receive paint supplied from an external paint source.

The kind of paint supplied from an external paint source is not specifically limited. For example, the paint may be a liquid light blocking material that can block light from being emitted through the shielding area of the prism P. In this case, the paint layer may be a light blocking material layer made of a liquid light blocking material.

On the other hand, it is preferable that at least one part of the rotating shaft of the 1st drum 11 consists of a permanent magnet. In this way, the rotational shaft of the first drum 11 and the shaft of the drive motor are detachably coupled to each other so that the first drum 11 is connected to the first drive motor when the first drum 11 needs to be cleaned. It can be easily separated from 12).

As shown in FIG. 6, the first driving motor 12 is installed on the first support 15, and is coupled to the rotation shaft of the first drum 11. The first drive motor 12 rotates the first drum 11 in a predetermined rotational direction about the rotation axis. Then, external forces such as rotational force and centrifugal force act on the paint accommodated in the first accommodating part 11c. Accordingly, the paint contained in the first accommodating part 11c is spread thinly on the bottom surface of the first accommodating part 11c by an external force applied by the rotation of the first drum 11, and has a predetermined thickness. Will be achieved.

As shown in FIGS. 6 and 7, the first tool tip 13 includes a first base plate 13a installed at a predetermined position to sweep the paint contained in the first accommodating portion 11c, and a first base plate 13a. A first fixing portion 13b for fixing the tool tip 13 to the second support 16 and a guide wall 13c for guiding the paint contained in the first receiving portion 11c toward the first base plate 13a. , 13d), and the like.

The first base plate 13a has a shape that can be inserted into the first accommodating portion 11c. As shown in FIG. 7, the first base plate 13a is in contact with the water surface of the paint accommodated in the first receiving portion 11c when the first drum 11 is rotated by the first drive motor 12. At least a part thereof is inserted into the first receiving portion 11c and supported by the first fixing portion 13b fixed to the second support 16. Then, when the first drum 11 is rotated by the first driving motor 12, the first base plate 13a may sweep the water surface of the paint accommodated in the first accommodating part 11c. As a result, the first base plate 13a may spread the paint on the bottom surface of the first accommodating part 11c by assisting the first driving motor 12 so that the paint layer has a uniform thickness.

In addition, as shown in FIG. 8, the first base plate 13a may have a first accommodating portion (a) at a front end portion first contacting paint contained in the first accommodating portion 11c based on the rotation direction of the first drum 11. The distance received from the bottom surface of the first accommodating portion 11c may gradually decrease toward the rear end of the paint accommodating 11c). Through this, the first base plate 13a may gradually spread the paint thinly so that the paint does not splash due to the collision of the paint with the first base plate 13a.

The first fixing part 13b may be installed such that one end is fixed to the first base plate 13a and the other end is fixed to the first gap adjuster 14. The first fixing part 13b may support the first base plate 13a so that the first base plate 13a is maintained at a predetermined position.

As shown in FIG. 7, the guide walls 13c and 13d extend from one end of the first base plate 13a to face the outer surface of the first protrusion 11a. And a second guide wall 13d extending from the other end of the first base plate 13a opposite to the one end so as to face the inner surface of the second protrusion 11b. In addition, the first guide wall 13c has a radius of curvature that is larger than the first protrusion 11a by a predetermined ratio, and the second guide wall 13d has a curvature smaller by a predetermined ratio than the second protrusion 11b. Have a radius. The first guide wall 13c and the second guide wall 13d can guide the paint contained in the receiving portion toward the first base plate 13a so that the first base plate 13a can sweep the paint. have.

As shown in FIG. 6, the first gap adjuster 14 is fixedly installed on the second support 16. The first gap adjuster 14 is provided to adjust the installation height of the first fixing part 13b and the first tool tip 13 fixed to the first fixing part 13b. For example, the first spacing adjuster 14 includes a fixed lead screw screwed to the first fixing portion 13b, and rotationally driving the lead screw to form the first fixing portion 13b and the first tool tip 13. ) Can be provided with an adjustable dial and the like. The first gap adjuster 14 raises and lowers the first fixing part 13b and the first base plate 13a according to the amount of paint accommodated in the first accommodating part 11c, and thus the first base plate 13a. ) And the bottom surface of the first accommodating part 11c may be adjusted.

FIG. 9 is a perspective view showing a schematic structure of the prism supply unit shown in FIG. 1, FIG. 10 is a perspective view of the first prism tray shown in FIG. 9, and FIG. 11 is a prism in the first prism tray shown in FIG. 9. It is a figure which shows the stacked state.

Next, the prism supply unit 30 is a device for supplying the prism P that requires shielding of the shielding area.

As shown in FIG. 9, the prism supply unit 30 includes a first prism tray 31 on which a plurality of prisms P are stacked, and a plurality of first prism trays 31 on a plurality of stacks. Predetermined among the first tray loader 32, the first elevator 33 for lifting up and down the first tray loader 32, and the first prism trays 31 mounted on the first tray loader 32. The first tray feeder 34 for selectively transferring the first prism tray 31 positioned at the reference height to a predetermined feed position, and the first prism tray 31 so as not to be separated from the first tray stacker 32. A first pusher 35 to support and a first rail 36 for guiding the first prism tray 31 to be transported along a predetermined transport path may be provided.

The first prism tray 31 preferably has a metal material, but is not limited thereto. As shown in FIG. 10, the first prism tray 31 may have a plurality of first mounting grooves 31a formed at predetermined intervals.

As illustrated in FIG. 11, the shielding areas of the prism P (eg, the first chamfer AC and the second chamfer BC) are respectively formed in the first mounting grooves 31 a. A portion of the prism P is formed to be seated so as to be exposed to the outside of the tray 31. In addition, each of the first seating grooves 31a may have a prism P such that an edge portion of the prism P seated in the first seating groove 31a does not directly contact the inner surface of the first seating groove 31a. It may have a first extension portion 31b extending from a portion corresponding to the corner portion of the ().

As shown in FIG. 9, the first tray loader 32 has a multi-layered structure in which a plurality of first prism trays 31 are stacked in multiple stages. The first tray loader 32 may have a plurality of first holders 32a formed at predetermined intervals so as to mount the first prism trays 31, respectively.

As shown in FIG. 9, the first tray feeder 34 includes a first coupling part 34a detachably coupled to the first prism tray 31, a first coupling part 34a, and a first coupling part 34a. It may have a first transfer unit (34b) for reciprocating the first prism tray 31 coupled to the coupling portion (34a).

The first coupling part 34a is detachably coupled to one end of the first prism tray 31 disposed at a predetermined reference height among the first prism trays 31 loaded on the first tray loader 32. It is prepared to be. Correspondingly, the first conveying portion 34b includes a first coupling portion 34a and a first prism tray 31 coupled to the first coupling portion 34a between the first tray loader 32 and a predetermined supply position. It is provided to be capable of reciprocating in the section. In this way, the first tray feeder 34 moves the first prism tray 31 positioned at a predetermined reference height among the first prism trays 31 loaded on the first tray stacker 32 to a predetermined supply position. Can be transferred selectively. In addition, in the first tray feeder 34, all of the prisms P are transferred to the second prism tray 71 by the prism pickup unit 60, which will be described later, so that all of the first seating grooves 31a are empty. The first prism tray 31, which is in the state, may be transferred to the first tray stacker 32 to be loaded again.

The first elevator 33 is provided to raise and lower the first tray loader 32 along the stacking direction of the first prism trays 31. Through this, the first elevator 33 may raise and lower the first tray loader 32 such that any one of the first prism trays 31 is selectively disposed at a predetermined reference height.

The first pusher 35 is installed to be opposite to the first tray feeder 34 with respect to the first tray loader 32. The first pusher 35 presses the first prism tray 31 located at a predetermined reference height among the first prism trays 31 loaded on the first tray loader 32 toward the first tray feeder 34. It is possible. This first pusher 35, when the first engaging portion 34a of the first tray feeder 34 is engaged with one end of the first prism tray 31 loaded in the first tray stacker 32; The first prism tray 31 coupled to the first coupling part 34a may be pressed toward the first tray feeder 34. As a result, the first pusher 35 is formed by pushing the first prism tray 31 by the first coupling part 34a when the first tray feeder 34 and the first prism tray 31 are coupled to each other. The first tray feeder 34 and the first prism tray 31 can be prevented from being incorrectly coupled.

The first rail 36 is predetermined with the first tray loader 32 so that the first prism tray 31 drawn out from the first tray loader 32 by the first tray conveyor 34 is movably seated. It is installed in the section between supply positions. The first rail 36 may guide the reciprocating transfer of the first prism tray 31 in a section between the first tray loader 32 and a predetermined supply position.

FIG. 12 is a perspective view illustrating a schematic structure of the paint applying unit illustrated in FIG. 1, FIG. 13 is a perspective view of a gripper illustrated in FIG. 12, and FIG. 14 is a state in which a prism is gripped by the gripper illustrated in FIG. 13. It is a figure which shows.

FIG. 15 is a view for explaining a method of applying paint to the first chamfer of the prism using the paint application unit shown in FIG. 12, and FIG. 16 is a view illustrating a method of forming the prism using the paint application unit shown in FIG. 12. It is a figure for demonstrating the method of apply | coating paint to 2 chamfers.

Next, the paint application unit 40 is an apparatus for applying the paint supplied by the paint supply units 10 and 20 to the shielding area of the prism P supplied from the prism supply unit 30.

The structure of the paint application unit 40 is not specifically limited. For example, as shown in FIG. 12, the paint application unit 40 drums the holding | gripping tool 41 which hold | grip the prism P supplied to the predetermined supply position, and the shielding area of the prism P. FIG. The applicator 43 etc. which convey the gripper 41 may be provided so that the paint layer formed in (11) may be selectively taken and the paint may be applied to the shielding area.

The structure of the gripper 41 is not specifically limited. For example, as illustrated in FIG. 13, the gripper 41 grips or grips the gripping arms 41a and 41b provided to hold the gripping area of the prism P and the gripping area of the prism P. It may have a driving unit 41c for driving the gripping arms 41a and 41b to release the gripping. In addition, the gripping area is preferably defined so as to be spaced apart from the shielding area by a predetermined interval so that the shielding area is exposed to the outside of the gripping arms 41a and 41b when the gripping area is gripped by the gripping arms 41a and 41b. Do. For example, as shown in FIG. 14, when the prism P is a triangular prism, the gripping region may be an edge region where the incident surface A and the reflective surface B meet and an adjacent region thereof.

The installation number of the holding arms 41a and 41b is not specifically limited. For example, the first gripping arm 41a provided to be able to coincide with any part of the gripping area of the prism P, and the second gripping arm provided to be able to coincide with another part of the gripping area of the prism P ( 41b) may be provided with a pair of grip arms 41a and 41b. As shown in FIG. 14, the first and second grip arms 41a and 41b may have a symmetrical structure.

The first gripping arm 41a may have a first mating groove 41d formed to conform to any part of the gripping area of the prism P, and the second gripping arm 41b may be gripped by the prism P. It may have a second mating groove (41e) is formed so as to match the other part of the region. Thus, as shown in FIG. 14, the gripping region of the prism P is sandwiched between the first gripping arm 41a and the second gripping arm 41b, so that the first gripping arm 41a and the second gripping arm are gripped. It can be gripped by the arm 41b.

The driving part 41c has a gripping area of the prism P sandwiched between the first and second gripping arms 41b or spaced apart from the first and second gripping arms 41b. The first gripping arm 41a and the second gripping arm 41b may be driven as much as possible. That is, the driving part 41c may reciprocally transfer the first holding arm 41a and the second holding arm 41b to be adjacent to or spaced apart from each other. The drive unit 41c preferably includes a pneumatic cylinder as a drive source, but is not limited thereto.

The structure of the applicator 43 is not specifically limited. For example, as shown in FIGS. 12 and 13, the applicator 43 includes a rotary part 43a for rotationally driving the gripper 41 and the gripper 41 in at least one of three axial directions. It may have a conveying portion 43b for reciprocating along.

The rotating part 43a is axially coupled with the drive part 41c of the gripper 41, and can rotate-drive the gripper 41 about the rotating shaft of the rotating part 43a. Correspondingly, the transfer part 43b may reciprocally transfer the rotating part 43a and the gripper 41 coupled thereto in at least one of three axis directions. Hereinafter, a method in which paint is applied to the shielding areas of the prism P using the paint application unit 40 will be described, taking the case where the prism P is a triangular prism as an example.

First, as shown in FIG. 14, the paint applying unit 40 is any of the prisms P loaded on the first prism tray 31 positioned at a predetermined supply position, and the paint work of the shielding area is not performed. It is driven to hold the gripping area of one prism P. At this time, instead of directly holding the prism P mounted on the first prism tray 31, the paint application unit 40 is driven by the prism pickup unit 60 which will be described later. It is preferable to be driven to hold the gripping area of the prism P picked up from the mounting groove 31a, but is not limited thereto.

Next, as shown in FIG. 15, the paint coating unit 40 includes a paint layer in which the first chamfer AC of the prism P is formed in the first accommodating part 11c of the first drum 11. The prism P is rotated to face the surface of the prism P, and the prism P is transferred so as to imprint the first chamfer AC of the prism P on the paint layer formed on the first accommodating portion 11c. Then, the paint is applied to the first chamfer A-C, whereby the first chamfer A-C is shielded (shielded) by the paint. In this case, as shown in FIG. 4, one region of the incident surface A connected to the first chamfer AC (hereinafter, referred to as 'first overflow allowable region D') and the emission surface C The paint application unit 40 is to immerse the first chamfer AC in a paint layer to a predetermined depth so that the paint is also applied to one region of the substrate (hereinafter referred to as 'second overflow allowable region E'). desirable. Here, the first overflow allowable area D is determined so as not to invade the effective incident area where light actually enters among the entire areas of the incident surface A, and the second overflow allowable area E is formed on the exit surface C. It is preferable that the whole area be determined so as not to invade the effective emission area where light is actually emitted.

Subsequently, as shown in FIG. 16, the paint applying unit 40 has a paint layer in which the second chamfer BC of the prism P is formed in the second receiving portion 21c of the second drum 21. The prism P is rotated so as to face the surface of the prism P, and the prism P is transferred so as to dip the second chamfer BC of the prism P onto the paint layer formed on the second accommodating portion 21c. Then, the paint is applied to the second chamfer B-C, whereby the second chamfer B-C is shielded (shielded) by the paint. In this case, as shown in FIG. 4, one region of the reflective surface B connected to the second chamfer BC (hereinafter, referred to as a 'third overflow allowable region F') and the emission surface C The paint applying unit 40 soaks the second chamfer BC in the paint layer to a predetermined depth so that the paint is applied to one region of the substrate (hereinafter referred to as 'fourth overflow allowable region G'). It is preferable. Here, the third overflow allowable region F is determined so as not to invade the effective reflecting region where light is actually reflected among the entire areas of the reflecting surface B, and the fourth overflow allowable region G is formed on the exit surface C. It is preferable that the whole area be determined so as not to invade the effective emission area where light is actually emitted.

Next, the paint application unit 40 is driven to rest on the 1st mounting groove 31a of the 1st prism tray 31 located in a predetermined | prescribed supply again the prism P which the shielding of the shielding area was completed. At this time, the paint application unit 40 has a shielding area by paint so that the prism pick-up unit 60 can rest the prism P on the first mounting groove 31a of the first prism tray 31 again. It is preferable to transfer the shielded prism P to the prism pickup unit 60, but is not limited thereto.

FIG. 17 is a view showing a schematic structure of the painting inspection unit shown in FIG. 1, and FIG. 18 is a view for explaining an installation position of the painting inspection unit shown in FIG. 17.

Next, the painting inspection unit 50 is an apparatus for inspecting a state in which paint is applied to the shielding region of the prism P.

The structure of the painting inspection unit 50 is not particularly limited. For example, as shown in FIG. 16, when the prism P is a triangular prism including the first chamfer AC and the second chamfer BC as a shielding area, the painting inspection unit 50 The first inspector 52 which inspects the state where the paint is applied to the first chamfer AC, the second inspector 54 which inspects the state where the paint is applied to the second chamfer BC, etc. It can be provided. In addition, the first inspector 52 paints on the first chamfer AC based on the first camera 52a photographing the first chamfer AC and the image information transmitted from the first camera 52a. It may have a first inspection unit (not shown) for inspecting the application state. Correspondingly, the second inspector 54 includes the second camera 54a for photographing the second chamfer BC and the second chamfer BC based on the image information transmitted from the second camera 54a. It may have a second inspection unit (not shown) for inspecting the state that the paint is applied to the.

The installation position of the 1st tester 52 and the 2nd tester 54 is not specifically limited. For example, as shown in FIG. 18, the 1st inspection machine 52 carries out the 1st chamfer AC of the prism P conveyed to the predetermined supply position from the 2nd drum 21, and the 1st camera ( 52a), and the second inspector 54 may move the second chamfer BC of the prism P, which is conveyed from the second drum 21 to a predetermined supply position, to the second camera. 54a) can be installed to be photographed.

FIG. 19 is a perspective view showing a schematic structure of the prism pickup unit shown in FIG. 1, and FIG. 20 is a perspective view showing a schematic structure of the pickup shown in FIG.

Next, the prism pick-up unit 60 is an apparatus which picks up the prism P supplied from the prism supply unit 30, and selectively transfers it to the paint application unit 40 and the prism recovery unit 70.

As shown in FIG. 19, the prism pickup unit 60 includes a pickup 62 capable of picking up or releasing the prism P, and a prism P picked up by the pickup 62 and the pickup 62. ) May be provided with a conveyer 64 for conveying along a predetermined conveying path.

As shown in FIG. 20, the pick-up machine 62 may have a vacuum adsorption member 62a that is capable of picking up or lifting up the suction of the prism P by vacuum suction. The vacuum suction member 62a has a smaller cross-sectional area than the exit surface C of the prism P so as not to contact the first chamfer AC and the second chamfer BC during vacuum suction of the prism P. It is prepared to have. It is preferable that a plurality of vacuum suction members 62a be provided at predetermined intervals so as to enable vacuum suction or suction release of the plurality of prisms P at the same time, but is not limited thereto. On one side of the pick-up machine 62, the first prism can be analyzed so as to analyze the state where the prism P is loaded based on the image information of the first prism tray 31 and the second prism tray 71 which will be described later. A camera 66 capable of photographing the tray 31 and the second prism tray 71 may be installed.

The feeder 64 may be provided to transport the picker 62 and the prism P picked up therein in at least one of three axis directions.

The prism pick-up unit 60 may selectively transfer the prism P supplied from the prism supply unit 30 to the paint application unit 40 and the prism recovery unit 70 according to the progress of the paint application operation.

For example, the prism pick-up unit 60 picks up the prism P from which the shielding work of the shielding area is not progressed from the first seating groove 31a of the first prism tray 31 arranged at a predetermined supply position. To the gripper 41 of the paint application unit 40.

For example, the prism pick-up unit 60 picks up the prism P gripped by the gripper 41 in the state where the shielding operation | work of the shielding area | region is completed, and the 1st prism tray 31 arrange | positioned at a predetermined supply position. ) May be seated on the first seating groove 31a again.

For example, the prism pick-up unit 60 picks up the prism P seated in the first seating groove 31a of the first prism tray 31 in a state where the shielding work of the shielding area is completed, and the predetermined number of times. The second mounting groove 71a of the second prism tray 71 to be described later, which is disposed at the position, may be mounted again. However, the present invention is not limited thereto, and the prism pickup unit 60 picks up the prism P held by the gripper 41 while the shielding operation of the shielding area is completed, and the second prism is disposed at a predetermined recovery position. The prism tray 71 may be directly seated in the second mounting groove 71a.

FIG. 21 is a perspective view illustrating a schematic structure of the prism recovery unit shown in FIG. 1.

Next, the prism recovery unit 70 is an apparatus for recovering the prism P in which the shielding work of the shielding area is completed.

As shown in FIG. 21, the prism recovery unit 70 includes a second prism tray 71 capable of stacking a plurality of prisms P and a plurality of second prism trays 71 stacked in multiple stages. Predetermined among the 2nd tray loader 72, the 2nd elevator 73 which raises and lowers the 2nd tray loader 72, and the 2nd prism trays 71 mounted in the 2nd tray loader 72. The second tray feeder 74 for selectively transferring the second prism tray 71 located at the reference height to a predetermined recovery position, and the second prism tray 71 so as not to be separated from the second tray stacker 72. A second pusher 75 for supporting and a second rail 76 for guiding the second prism tray 71 to be transported along a predetermined transfer path may be provided. The prism recovery unit 70 preferably has a symmetrical structure with the prism supply unit 30 described above, but is not limited thereto.

The second prism tray 71 preferably has a metal material, but is not limited thereto. The second prism tray 71 may have a plurality of second mounting grooves 71a formed at predetermined intervals and capable of mounting the prism P.

As shown in FIG. 21, the second tray loader 72 has a multilayer structure in which a plurality of second prism trays 71 are stacked in multiple stages. The second tray stacker 72 may have a plurality of second holders 72a formed at predetermined intervals so as to mount the second prism trays 71, respectively.

As shown in FIG. 21, the second tray feeder 74 includes a second coupling part 74a that is detachably coupled to the second prism tray 71, a second coupling part 74a, and a second coupling part 74a. It may have a second transfer portion (74b) for reciprocating the second prism tray 71 coupled to the coupling portion (74a).

The second coupling part 74a is detachably coupled to one end of the second prism tray 71 disposed at a predetermined reference height among the second prism trays 71 loaded on the second tray loader 72. It is prepared to be. Correspondingly, the second conveying portion 74b includes a second coupling portion 74a and a second prism tray 71 coupled to the second coupling portion 74a between the second tray loader 72 and the predetermined recovery position. It is provided to be capable of reciprocating in the section. As a result, the second tray feeder 74 moves the second prism tray 71 located at a predetermined reference height among the second prism trays 71 stacked on the second tray stacker 72 to a predetermined recovery position. Can be transferred selectively. In addition, the second tray feeder 74 transfers the second prism tray 71 in which the prism P is seated to all of the second mounting grooves 71a by the prism pickup unit 60, respectively. The tray stacker 72 may be stacked again.

The second elevator 73 is provided to raise and lower the second tray loader 72 along the stacking direction of the second prism trays 71. Through this, the second elevator 73 may raise and lower the second tray loader 72 so that any one of the second prism trays 71 is disposed at a predetermined reference height.

The second pusher 75 is installed to be opposite to the second tray feeder 74 with respect to the second tray stacker 72. The second pusher 75 presses the second prism tray 71 located at a predetermined reference height among the second prism trays 71 loaded on the second tray loader 72 toward the second tray feeder 74. It is possible. This second pusher 75, when the second engaging portion 74a of the second tray feeder 74 is engaged with one end of the second prism tray 71 loaded on the second tray stacker 72. The second prism tray 71 coupled to the second coupling part 74a may be pressed toward the second tray feeder 74. As a result, the second pusher 75 is driven by the second prism tray 71 being pushed by the second coupling part 74a when the second tray feeder 74 and the second prism tray 71 are coupled to each other. It is possible to prevent the two tray feeder 74 and the second prism tray 71 from being misaligned.

The second rail 76 is predetermined with the second tray loader 72 so that the second prism tray 71 withdrawn from the second tray loader 72 by the second tray conveyor 74 is movably seated. It is installed in the section between recovery positions. The second rail 76 may guide the reciprocating transfer of the second prism tray 71 in the section between the second tray loader 72 and the predetermined recovery position.

22 is a flowchart illustrating a method of applying paint to a shielding area of a prism using a prism painting system according to a preferred embodiment of the present invention.

Referring to FIG. 22, the method of applying paint to the shielding area of the prism P using the prism painting system 1 includes supplying a first prism tray 31 (S 10) and a first prism tray. Applying the paint to the shielding area of each prism (P) loaded on (31) (S 20), inspecting the paint application state of the shielding area (S 30), and the paint is applied to the shielding area It may include the step (S 40) and the like to recover the prisms (P).

First, in step S10, the first prism tray 31 loaded on the first tray stacker 32 is transferred to the predetermined supply position using the first tray feeder 34.

Next, in step S20, the shielding area of the prism P is drummed using the applicator 43 while the prism P loaded on the first prism tray 31 is gripped using the gripper 41. After coating the paint layer formed on (11, 21) to apply paint to the shielding area, the prism P coated with the paint on the shielding area is conveyed and placed on the first prism tray 31 again.

Subsequently, in step S 30, the state in which paint is applied to the shielding area of the prism P is inspected using the prism inspection unit 50. The step S 30 is preferably performed on the prism P being conveyed from the drum 11 to the first prism tray 31, but is not limited thereto.

On the other hand, steps S20 and S30 are repeatedly performed until the shielding and inspection operations for all the prisms P loaded in the first prism tray 31 transferred to the predetermined supply position are completed. Preferred but not limited thereto.

Next, in step S40, the prism P is transferred to the second prism tray 71 arranged at a predetermined recovery position from the first prism tray 31 using the prism pickup unit 60, and then loaded. The second prism tray 71 may be mounted on the second tray stacker 72 using the second tray feeder 74.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may various modifications and changes without departing from the essential characteristics of the present invention.

Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

1: Prism Painting System
P: Prism
A: incident surface
B: reflective surface
C: exit surface
AC: first chamfer
BC: second chamfer
10: first paint supply unit
11: first drum
11a: first protrusion
11b: second protrusion
11c: first accommodating part
12: first drive motor
13: first tooltip
13a: first base plate
13b: first fixing part
13c: 1st guide wall
13d: 2nd guide wall
14: first lift
15: first support
16: second support
20: second paint supply unit
21: second drum
21c: second receiving portion
30: prism supply unit
31: first prism tray
31a: first seating groove
31b: first extension
32: first tray stacker
33: first lift
34: first tray feeder
34a: first coupling portion
34b: first transfer part
35: first pusher
36: first rail
40: paint coating unit
41: gripper
41a: first gripping arm
41b: second gripping arm
41c: drive unit
41d: first matching groove
41e: 2nd matching groove
43: applicator
43a: rotating part
43b: transfer section
50: painting inspection unit
52: first inspector
52a: first camera
54: second inspector
54a: second camera
60: prism pickup unit
62: pickup
62a: adsorption member
64: feeder
66: camera
70: prism recovery unit
71: second prism tray
71a: second seating groove
72: second tray stacker
73: second lift
74: second tray feeder
74a: second coupling part
74b: second transfer part
75: second pusher
76: second rail

Claims (17)

A paint supply unit having a drum formed on one surface of a paint layer made of liquid paint;
A prism supply unit for supplying a prism having a predetermined shielding area to a predetermined supply position; And
A gripper for holding a prism disposed at the predetermined supply position, and an applicator for transferring the gripper to selectively apply the paint to the predetermined shielding area by selectively dipping the predetermined shielding area onto the paint layer. Including a paint application unit,
The predetermined shielding area is provided in plural so as to be located on different surfaces or corners of the entire surfaces and corners of the prism,
And the applicator has a rotatable portion that rotates the gripper about an axis of rotation such that the posture of the prism is changed to selectively face one of the predetermined shielding regions with the paint layer. The method of claim 1,
The paint supply unit, the prism painting system further comprises a drive motor for rotating the drum about the rotation axis to spread the paint on the one surface. The method of claim 2,
And the paint supply unit further comprises a tool tip having a base plate disposed at a predetermined position to sweep the paint and spreading the paint on the one surface. The method of claim 3,
The tool tip further includes a lifter for elevating the base plate and a guide wall for guiding the paint to the base plate so as to adjust a distance between the base plate and the one surface. system. The method of claim 4, wherein
The drum has a first protrusion protruding from the one surface about the rotation axis, and a second protrusion protruding from the one surface about the rotation axis and having a larger diameter than the first protrusion,
And the paint is received in a space between the first protrusion and the second protrusion. The method of claim 5,
The base plate is arranged to be inserted into the interspace,
The guide wall extends from a first guide wall extending from one end of the base plate to face the first protrusion, and from the other end of the base plate opposite to the one end to face the second protrusion. A prism painting system, characterized in that it has a second guide wall. The method of claim 4, wherein
The driving motor rotates the drum along a predetermined rotational direction,
The base plate has a downwardly inclined structure in which a distance from the one surface becomes smaller toward the rear end portion contacting the paint later from the front end portion contacting the paint based on the predetermined rotation direction. . delete The method of claim 1,
The applicator further comprises a conveying part for conveying the gripper along at least one of three axial directions. The method of claim 1,
The gripping device has a gripping arm provided to hold a predetermined gripping area of the prism, and a driving unit for driving the gripping arm to hold or release the predetermined gripping area. The method of claim 10,
The gripping arm has a first gripping arm provided to be able to coincide with any part of the predetermined gripping area, and a second gripping arm provided to be able to coincide with another part of the predetermined gripping area,
The driving unit may be configured such that the predetermined gripping area is sandwiched between the first and second gripping arms or spaced apart from the first and second gripping arms. A prism painting system characterized by driving an arm. The method of claim 10,
The predetermined gripping area is determined to be spaced apart from the predetermined shielding area by a predetermined interval so that the predetermined shielding area is exposed to the outside when the predetermined gripping area is gripped by the gripping arm. Prism Painting System. The method of claim 1,
The prism supply unit includes a first prism tray loaded with a plurality of prisms, a first tray feeder for supplying the first prism tray to the predetermined supply position,
The paint applying unit, when the first prism tray is disposed in the predetermined supply position, the prism painting, characterized in that for holding the prisms individually according to a predetermined order to apply the paint to the predetermined shielding area system. The method of claim 13,
The prism supply unit includes a first tray stacker in which a plurality of first prism trays are stacked in multiple stages, and a first tray stacker for lifting and lowering the first tray stacker so that one end of the multiple stages can be selectively disposed at a predetermined reference height. 1, further equipped with a lift,
And the first tray feeder is configured to selectively transport the first prism tray disposed at the one end to the predetermined supply position. The method of claim 13,
The paint applying unit reloads a prism in which the paint is applied to the predetermined shielding area to a first prism tray disposed at the predetermined supply position,
And a prism pick-up unit for picking up the prism with the paint applied to the predetermined shielding area from the first prism tray disposed at the supply position. The method of claim 15,
The prism pick-up unit includes a pick-up for picking up or unpicking the prism and a feeder for feeding the pick-up along a predetermined transfer path. The method of claim 1,
The paint applying unit retransmits the prism with the paint applied to the predetermined shielding area to the supply position,
And a camera for photographing the predetermined shielding area of the prism re-delivered from the drum to the supply position, and a painting inspection unit for inspecting the application state of the paint based on the image information transmitted from the camera. Prism painting system.

Images