KR102471372B1 - Automatic painting system - Google Patents

Abstract

The present invention relates to an automatic painting system, which can minimize manpower loss and increase productivity by performing painting while rotating an object to be painted in a painting booth and after painting is completed, automatically transferring a bogie on which the object to be painted is seated to the inside of a drying furnace in order to dry the object to be painted. The automatic painting system comprises: the painting booth for painting the surface of the object to be painted with paint using a painting robot while rotating a bogie to which the object to be painted is coupled; a bogie mounting unit provided in the painting booth so as to raise and rotate the bogie; a drying furnace for drying the object to be painted obtained by completion of painting; a primary transfer unit for transferring the bogie to the entrance of the drying furnace when the painting of the object to be painted is completed; and a secondary transfer unit for transferring the bogie at the inlet of the drying furnace to the inside of the drying furnace.

Description

Automatic painting system {AUTOMATIC PAINTING SYSTEM}

The present invention relates to an automatic painting system, and more particularly, to paint an object to be painted while rotating it in a painting booth, and after the painting is completed, a cart on which the object to be painted is mounted is automatically moved to the inside of a drying furnace to dry the object. It relates to an automatic painting system that minimizes manpower loss and improves productivity by transferring to

In general, large parts such as car cabins are transported using a cart, and paint is painted in a painting booth using a painting robot, and when the painting is completed, they are transferred to a drying furnace together with the cart and dried.

However, in the conventional painting system, a lot of manpower is required and the painting quality is deteriorated as the painting robot rotates the cart with the objects to be painted in the painting booth by manpower and then paints with the painting robot. In addition, there is a problem in that a lot of time and manpower are consumed in painting and transporting the painted object as the device for transferring the painted object to the drying furnace or to the inside of the drying furnace is not automated.

On the other hand, Registered Patent No. 10-2199127 discloses an inlet through which an object to be coated transferred through a transfer unit enters, an exit formed in a direction opposite to the inlet and discharging an object coated with paint to a discharge unit, and a number of A housing whose inner space is partitioned by two partition plates; a table in which a pair of tables are disposed symmetrically with each other in the housing and the transported coating object is placed thereon; a rotation module provided on the table and operating by applied power and signals to rotate the object to be painted; a spraying module that is disposed above the table in the housing and operates by applied power and signals and sprays paint onto a painting object placed on the table; And a transfer module for moving the coating object between the transfer unit and the table or the table and the discharge unit, wherein the paint is applied to the surface of the coating object transferred at a constant speed through the transfer unit, and the painting is performed through the rotation module. A coating layer having a certain thickness can be formed by applying paint while rotating the object, and a coating layer can be formed on an object having various widths by adjusting the interval of the transfer module that moves the object to be painted according to the width of the object to be coated. An automated device for powder coating that can be proposed and disclosed,

Patent Registration No. 10-2137088 discloses a mounting step of mounting a painting target on a hanger that is coupled to a raceway installed along a process section and moves along the raceway, and a painting in which the hanger is disposed at any point in the process section. A painting step in which the object to be painted is painted while passing through the device, and a drying step in which the object to be painted is heated and dried to form a coating film while the hanger passes through a drying device disposed at any one point of the process section, An automated powder coating method that improves productivity and manufacturability through automation of is proposed and disclosed.

Patent Registration No. 10-2068044 includes a supply unit for supplying an object at a constant speed; A preheating unit for preheating to raise the surface temperature of the object supplied through the supply unit; a powder coating unit for spraying powder-type paint on an object preheated by the pre-heating unit; a heating unit for heating the object to which the powder paint is applied by the powder coating unit to fuse the paint to the object; a drying unit for drying the object to which the paint is fused; And a transfer unit for moving the object; including, but the transfer unit, a pair of jigs configured to be mutually disposed to be close to each other or to be spread apart to each other, and one end of the pair of jigs is rotatably coupled to each other It includes a body, an elevating shaft for elevating the body, and a horizontal shaft for moving the body in a horizontal direction, spraying powdered paint on the surface of the object at a constant thickness and heating the sprayed paint. A powder coating system that coats the surface of an object to have a certain thickness by melting through a coating is proposed and disclosed.

Registered Patent Publication No. 10-2199127 Registered Patent Publication No. 10-2137088 Registered Patent Publication No. 10-2068044

Therefore, the present invention has been devised in consideration of and solving the above-mentioned conventional problems, and the painting is performed while rotating the painting object in the painting booth, and after the painting is completed, the cart on which the painting object is seated is used to dry the painting object. The purpose is to provide an automatic painting system that can automatically transfer to the inside of the drying furnace to minimize manpower loss and improve productivity.

According to the automatic painting system of the present invention for achieving the above object, a painting booth for painting the surface of an object to be painted by using a painting robot while rotating a carriage to which the object to be painted is coupled; A bogie holder provided in the painting booth to raise and rotate the bogie; A drying furnace for drying the painted object; When the painting of the object to be painted is completed, the primary transfer unit for transporting the bogie to the entrance of the drying furnace; and a secondary transfer unit for transferring the cart at the inlet of the drying furnace to the interior of the drying furnace.

Here, a first door for supplying an object to be coated is provided on one side of the painting booth, a second door for transporting a cart is provided at a position orthogonal to the first door, and painting is provided between the first door and the second door. Robots can be deployed.

Here, the bogie holding part has a turntable having a bogie seating portion on the upper surface of which the bogie is seated and rotates at a predetermined angle, an index motor provided on an elevating plate to rotate the turntable at a predetermined angle and having a deceleration unit and a power conversion unit, It may include four lift cylinders coupled to four corners of the steel plate to lift the lift plate.

Here, the bogie holder includes a plurality of limit sensors installed at regular intervals along the circumference to detect the rotational position of the turntable and stop the index motor, and the turntable may be provided with a sensing groove detected by the limit sensor. .

Here, the turntable may be configured to rotate 45 degrees and then rotate 90 degrees again after rotating 45 degrees, or rotate 90 degrees at a time.

Here, the turntable rotates 45 degrees and then rotates 45 degrees again to stop at a 90-degree angle so that painting can be done by the painting robot, or rotates 90 degrees at a time and then stops to be painted by the painting robot. It can be.

Here, the primary transfer unit includes a rail for guiding the movement of the bogie, a chain drive unit for moving the bogie, a bogie cylinder installed at the end of the chain drive unit so as to rotate a hook hook caught on the bogie, and a drive sprocket. It may include a transport chain rotating between driven sprockets and coupled with a chain drive unit, a drive motor generating a driving force for rotating the drive sprocket, and a plurality of limit sensors provided on the rail to detect the position of the catching hook.

Here, the primary transfer unit may be configured to transport the bogie by pulling the bogie to the middle portion of the rail and then pushing the bogie from the middle portion of the rail to the entrance of the drying furnace.

Here, the primary transfer unit includes a first limit sensor provided at the entrance of the rail located in the painting booth, a second limit sensor provided at the end of the rail located inside the entrance of the drying furnace, and the middle of the rail so that the bogie is temporarily stopped. It may include an atmospheric limit sensor provided in the part.

Here, the secondary transfer unit includes a transfer unit frame installed at the bottom of the drying furnace, a transfer chain equipped with hooks for hanging the cart, and upper sides of the inlet and outlet sides of the transfer unit frame so that the cart is transported along the upper surface of the transfer unit frame, respectively. It may include an inlet side chain sprocket and an outlet side chain sprocket provided to which the transport chain is coupled, and a drive sprocket operated by a drive motor to rotate the transport chain.

The automatic painting system according to the present invention performs painting while rotating the object to be painted, and after the painting is completed, the bogie on which the object to be painted is seated is automatically transported to the inside of the drying furnace to minimize manpower loss and increase productivity. A useful effect that could be improved could be achieved.

According to the present invention, as the first door for supplying objects to be painted and the second door for transporting the cart are orthogonally arranged and a painting robot is provided between the two, a useful effect of improving space utilization in the painting booth is achieved. can do.

According to the present invention, as the bogie holder elevates and rotates the bogie to which the object to be painted is attached, a useful effect of evenly applying paint to the object to be painted using the painting robot can be achieved.

According to the present invention, the 1st transfer unit can stably transfer the trolley to which the painted object is combined to the drying furnace, and the 1st transfer unit pulls the trolley to a certain distance and transfers it by pushing the trolley again. A useful effect of being able to reduce the size of the chain driving unit to be transported can be achieved.

According to the present invention, the first limit sensor and the second limit sensor are provided at both ends of the rail provided in the primary transport unit, and the standby limit sensor is provided in the middle of the rail, so that the operation of the primary transport unit is automated. A useful effect can be achieved.

According to the present invention, it is possible to achieve a useful effect of transferring the bogie to the inside of the drying furnace by using the secondary transport unit and discharging it to the outside of the drying furnace when drying is completed.

1 is a configuration diagram showing an automatic painting system according to the present invention.
2 is a block diagram showing a truck transfer unit of an automatic painting system according to the present invention.
3 is a block diagram illustrating the configuration of a bogie holder of an automatic painting system according to the present invention.
4 is a side configuration diagram showing a bogie holder of an automatic painting system according to the present invention.
5 is a plan configuration diagram showing a bogie holder of an automatic painting system according to the present invention.
6 is a configuration diagram showing a state in which a bogie to which a painting object is coupled is seated on a bogie holder of an automatic painting system according to the present invention.
7 is a configuration diagram showing a state in which a turntable on which a bogie is seated is raised in an automatic painting system according to the present invention.
8 is a reference view showing a state in which the bogie holder of the automatic painting system according to the present invention is rotated.
9 is a configuration diagram showing the primary transfer unit of the automatic painting system according to the present invention.
10 is a configuration diagram showing a secondary transfer unit of an automatic painting system according to the present invention.
11 to 17 are diagrams showing in detail a process of transferring a bogie to a drying room in which a painted object is coupled in an automatic painting system according to the present invention.

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

The terms used in the present invention are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of the user or operator, so the definitions of these terms are meanings consistent with the technical details of the present invention. and should be interpreted as a concept.

1 to 10 of the accompanying drawings are diagrams shown to explain the automatic painting system according to the present invention, and FIGS. 11 to 17 are views of the automatic painting system according to the present invention, in which the object to be painted is coupled to a drying room. These are diagrams showing the transfer process in detail.

As shown in FIGS. 1 to 10, the automatic painting system according to the present invention includes a painting booth 10, a drying furnace 20, a truck holder 30, a primary transfer unit 40, and a secondary transfer unit ( 50) is included.

The painting booth 10 is a place where paint is painted on the surface of a painting object 70 using a painting robot 15 while rotating a carriage 60 to which a painting object 70 is coupled, and a painting object 70 on one side. ) A first door 11 for supplying is provided, and a second door 12 for transferring the cart 60 is provided to be able to move up and down at a position orthogonal to the first door 11.

A painting robot 15 is disposed between the first door 11 and the second door 12 . Therefore, it is possible to optimize the internal structure and movement of the painting booth 10 .

The drying furnace 20 is a place where the painted object 70 is dried, and is disposed at a position spaced apart from the painting booth 10 to a certain extent, and has an entrance door installed so as to be able to move up and down to seal the inside while drying is performed. Provide an exit door.

The carriage holder 30 is provided in the painting booth 10 to raise and rotate the carriage 60 . Specifically, as shown in FIGS. 3 to 5, the bogie holder 30 is provided with a bogie seating portion 32 on the upper surface of which the bogie 60 is seated, and a turntable 31 rotated at a predetermined angle and , The index motor 33 provided on the lift plate 35 rotates the turntable 31 at a predetermined angle and has a deceleration unit and a power conversion unit 34, and is coupled to the four corners of the lift plate 35 to lift It consists of four lifting cylinders (36) for lifting the steel plate (35).

At this time, the bogie holder 30 is provided with a plurality of limit sensors 37 installed at regular intervals along the circumferential direction to detect the rotational position of the turntable 31 and stop the index motor 33, and the turntable ( 31) is provided with a sensing groove 31' sensed by the limit sensor 37.

Then, the turntable 31 rotates 45 degrees and then rotates 45 degrees again and stops in a state of rotation at an angle of 90 degrees so that painting by the painting robot 15 is performed, or rotates 90 degrees at a time and then stops to make the painting robot ( 15) is preferably configured so that painting is performed.

Accordingly, it is possible to evenly paint the paint on the object 70 using the painting robot 15 .

In addition, when the 360 degree rotation is completed, the turntable 31 is further rotated by 45 degrees to finish painting, and then rotated by 45 degrees in the reverse direction toward the initial position. Accordingly, it is possible to apply the paint evenly so that the paint boundary surface does not appear on the object to be coated 70 .

When the coating of the object to be coated 70 is completed inside the painting booth 10, the primary transfer unit 40 transfers the cart 60 to which the object to be coated 70 is coupled to the entrance of the drying furnace 20 for drying. is to do

Specifically, as shown in FIG. 9, the primary transport unit 40 includes a rail 41 for guiding the movement of the truck 60, a chain drive unit 42 for moving the truck 60, and a truck ( 60) to rotate the hook 44 caught on the chain type drive unit 42, which rotates between the bogie cylinder 45 installed at the end of the drive sprocket 43a and the driven sprocket 43b, and the chain type drive unit A plurality of limit sensors provided on the rail to detect the position of the transfer chain 43 to which 42 is coupled, the drive motor 46 generating a driving force for rotating the drive sprocket 43a, and the hook 44 (47).

In addition, the primary transfer unit 40 is configured to transport the bogie 60 by pulling the bogie 60 to the middle portion of the rail 41 and then pushing the bogie 60 from the middle portion of the rail 41 to the entrance of the drying furnace 20. it is desirable to be

Through this, it is possible to reduce the size of the chain type drive unit 42 .

To this end, the limiter sensor 47 of the primary transfer unit 40 includes the first limit sensor 47a provided at the entrance of the rail 41 located in the painting booth 10 and the inside of the entrance of the drying furnace 20. It includes a second limit sensor 47b provided at the end of the rail 41 located at and a standby limit sensor 47c provided at the middle portion of the rail 41 so that the bogie 60 temporarily stops. can

The secondary transfer unit 50 transfers the cart 60 transferred to the inlet of the drying furnace 20 to the inside of the drying furnace 20 .

Specifically, as shown in FIG. 10, the secondary transfer unit 50 is provided with a transfer unit frame 51 installed at the bottom of the drying furnace 20 and a hook 53 on which the bogie 60 is hung. The inlet chain to which the conveying chain 52 and the bogie 60 are provided on the upper side of the inlet side and the outlet side of the conveying part frame 51 are respectively provided so that the conveying chain 52 and the bogie 60 are transferred along the upper surface of the conveying part frame 51 and the conveying chain 52 is coupled thereto. It may include a sprocket 53 and an outlet side chain sprocket 54 and a drive sprocket 56 that is operated by the drive motor 57 to rotate the conveying chain 52 .

Accordingly, after the paint is painted on the object to be painted using the automatic painting device according to the present invention having the above-described configuration, and after the painting is completed, the object to be painted is transferred to a drying furnace and dried, with reference to the drawings, will be described as follows. .

The first door 11 of the painting booth 10 is opened, and the carriage 60 coupled with the cabin, which is the object to be painted 70, is seated on the carriage holder 30.

At this time, after the bogie 60 is seated on the bogie holder 30 first, the object to be painted 70 may be manually coupled to the bogie 60.

Therefore, as shown in FIG. 6 , the bogie 60 to which the object to be painted 70 is coupled is seated on the bogie holder 30 .

Subsequently, as shown in FIG. 7, the lift cylinder 36 operates to lift the lift plate 35 so that the turntable 31 on which the bogie 60 is seated can rotate, and as shown in FIG. The step motor 33 rotates the turntable 31 by 45 degrees or 90 degrees.

When the rotation of the turntable 31 is completed, it temporarily stops and the painting robot 15 performs a painting operation. When the painting operation is completed, the turntable 31 is rotated again.

When the 360-degree rotation of the turntable 31 is completed through the above process, the turntable 31 is additionally rotated at an angle of 45 degrees so that the paint boundary surface does not occur, so that the painting robot 15 finishes painting.

Of course, when the finish painting is completed, the turntable 31 returns to the initial position by rotating 45 degrees in the reverse direction and waits for transfer.

When all of the painting of the object to be coated 70 is completed, as shown in FIG. 11, the second door 12 of the painting booth 10 is moved upward and opened to prepare for transfer.

Subsequently, as shown in FIG. 12, the drive motor 46 of the primary transfer unit 40 operates to rotate the transfer chain 43, and as a result, the chain-type drive unit 42 is deployed and the hook 44 ) and the bogie cylinder 45 moves to the inlet side of the rail 41.

Thereafter, when the hook 44 is detected by the first limit sensor 47a, the driving motor 46 is stopped, and as shown in FIG. 13, the hook 44 is moved by the cylinder 45 for a bogie. It is rotated and caught on one side of the bogie 60.

When the hook 44 is caught on the cart 60, the transfer chain 43 is rotated by the drive motor 46, so that the chain drive unit 42 is folded and the cart 60 is pulled and transported.

In addition, when the hook 44 is detected by the standby limit sensor 47c in the process of transferring the cart 60, the drive motor 46 is stopped to stop the transfer of the cart 60 as shown in FIG. And, the inlet door 25 of the drying furnace 20 is moved upward to open the drying furnace 20.

Subsequently, as shown in FIG. 15, the locking hook 44 is rotated so as to lie down by the cylinder 45 for the bogie, separated from the bogie 60, and the chain-type drive unit 42 according to the operation of the drive motor 46 is developed again and moves to the inlet side of the rail 41.

Thereafter, when the hook 42 is detected by the first limit sensor 47a, the drive motor 46 is stopped and rotated so that the hook 44 is erected by the cylinder 45 for a bogie, and then the drive motor ( 46) is actuated again to cause the chain-like drive 42 to be folded.

Therefore, the hook 44 moved toward the cart 60 is caught on the back of the cart 60 and pushes the cart 60 into the drying furnace 20.

Subsequently, as shown in FIG. 16, when the vehicle 60 is detected by the second limit sensor 47b, the operation of the driving motor 46 is stopped and the vehicle 60 is transported by the primary transport unit 40. After finishing, the locking hook 44 is rotated by the bogie cylinder 45 to lie down to wait for the next transfer operation.

At the same time, the drive motor 57 of the secondary transfer unit 50 is operated to rotate the transfer chain 52, so as shown in FIG. 17, the hook 53 installed vertically on the transfer chain 52 is a bogie (60) is caught.

Therefore, the cart 60 is transported into the drying furnace 20 by the transport chain 52 to dry the painted surface of the object 70, and when drying is completed, the cart 60 is transported by the transport chain 52. ) is discharged to the outside of the drying furnace 20.

The embodiments described above are merely those of the preferred embodiments of the present invention, and are not extremely limited to these embodiments, and various modifications and variations, etc. It will be said that this can be done, and it will be said that it belongs to the technical scope of the present invention.

10: painting booth 11: first door
12: second door 15: painting robot
20: drying furnace 25: entrance door
30: bogie holder 31: turntable
32: bogie seating part 33: index motor
34: power conversion unit 35: lifting plate
36: lifting cylinder 37: limit sensor
40: primary transfer unit 41: rail
42: chain type driving unit 43: transfer chain
43a: drive sprocket 43b: driven sprocket
44: hook hook 45: cylinder for bogie
46: drive motor 47: limit sensor
47a: first limit sensor 47b: second limit sensor
47c: limit sensor for standby 50: secondary transfer unit
51: transfer frame 52: transfer chain
53: engaging hook 54: inlet side chain sprocket
55: outlet side chain sprocket 56: drive sprocket
57: drive motor 60: bogie
70: coating object

Claims (10)

A painting booth for painting the surface of an object to be painted with paint using a painting robot while rotating a bogie to which the object to be painted is coupled;
A bogie holder provided in the painting booth to raise and rotate the bogie;
A drying furnace for drying the painted object;
When the painting of the object to be painted is completed, the primary transfer unit for transporting the bogie to the entrance of the drying furnace; and
Including; a secondary transfer unit for transferring the cart at the entrance of the drying furnace to the inside of the drying furnace,
A first door for supplying an object to be coated is provided on one side of the painting booth,
A second door for transporting the bogie is provided at a position orthogonal to the first door,
An automatic painting system characterized in that a painting robot is disposed between the first door and the second door.
delete The method of claim 1,
The bogie holding part is provided with a bogie seating part on the upper surface and rotates at a certain angle, and an index motor provided on the lifting plate to rotate the turntable at a certain angle and having a deceleration part and a power conversion part, and a lifting plate. An automatic painting system comprising four lift cylinders coupled to four corners to lift the lift plate.
The method of claim 3,
The bogie holder is provided with a plurality of limit sensors installed at regular intervals along the circumferential direction to detect the rotational position of the turntable and stop the index motor,
An automatic painting system, characterized in that the turntable is provided with a detection groove sensed by a limit sensor.
The method of claim 3,
After rotating 45 degrees, the turntable rotates 45 degrees again and stops at a 90-degree angle so that painting can be done by a painting robot.
An automatic painting system characterized in that it is configured to rotate 90 degrees at a time and then stop to perform painting by a painting robot.
The method of claim 3,
The automatic painting system according to claim 1 , wherein the turntable rotates an additional 45 degrees when the 360-degree rotation is completed so that finish painting is performed, and then rotates 45 degrees in a reverse direction toward an initial position.
The method of claim 1,
The primary transfer part includes a rail for guiding the movement of the bogie, a chain drive unit for moving the cart, a bogie cylinder installed at the end of the chain drive unit so as to rotate a hook hook caught on the bogie, a drive sprocket and a driven sprocket. Automatic characterized in that it comprises a transfer chain to which the chain-type drive unit is coupled while rotating between them, a drive motor that generates a driving force for rotating the drive sprocket, and a plurality of limit sensors provided on the rail to detect the position of the hook. painting system.
The method of claim 7,
The primary transfer unit is an automatic painting system, characterized in that configured to transfer the bogie by pulling the bogie to the middle of the rail and then pushing the bogie from the middle of the rail to the entrance of the drying furnace.
The method of claim 7,
The primary transfer unit includes a first limit sensor provided at the rail entrance located in the painting booth, a second limit sensor provided at the end of the rail located inside the entrance of the drying furnace, and a middle part of the rail to temporarily stop the bogie. Automatic painting system characterized in that it comprises a limit sensor for the atmosphere provided.
The method of claim 1,
The secondary transfer unit is provided on the upper side of the entrance and exit sides of the transfer unit frame so that the transfer unit frame installed at the lower part of the drying furnace, the transfer chain equipped with the hook to which the bogie is hung, and the transfer unit frame are transferred along the upper surface of the transfer unit frame. An automatic painting system comprising: an inlet chain sprocket and an outlet chain sprocket to which a transport chain is coupled, and a drive sprocket operated by a drive motor to rotate the transport chain.

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