KR101167923B1 - Apparatus for spraying paint - Google Patents

Abstract

The present invention relates to a paint spraying device.
A paint spraying apparatus according to an embodiment of the present invention includes a main body traveling along a member to be coated formed on a flat plate; An injection unit provided in the main body and injecting paint into the member to be coated; And a guide part extending from the main body and maintained in contact with the member to be coated.

Description

Paint spraying device {Apparatus for spraying paint}

The present invention relates to a paint spraying device.

Various materials used in industrial sites are painted for various purposes such as aesthetics, corrosion protection, shock absorbing, etc.

Particularly in the ship sector, the painting work is aesthetically pleasing, the cleanliness of the living quarters, the protection of the hull from seawater or rain and wave impacts, the protection of corrosion, the prevention of increased resistance due to the attachment of marine organisms such as seaweed or shellfish, and the steering performance. It can be carried out for a wide variety of purposes, such as preventing the deterioration of. In addition, the painting work is required not only on the outer plate of the hull, but also on the inside, and is also required on various members having a '┳' or '┓' shape in which the two members may be welded or bent.

The painting work of a member having a '┳' or '┓' shape, in which two members can be welded or bent, in particular, the painting work on the back side, which is a welded or bent part, is carried out by the operator carrying the spray device connected to the paint tank. This is done by spraying paint.

However, the above conventional technology has the following problems.

Since the paint may contain various chemicals, there is a problem that there is a high risk of adversely affecting the health of the worker.

In addition, the back portion is difficult to access the worker, there is a problem that the difficulty of the task is very high, such as taking a certain posture for a long time.

In addition, in the case of the rear surface of the ceiling surface and the member formed on the ceiling surface there is a problem that must be installed for the chieftain for painting work according to the height of the ceiling surface.

In addition, there is a problem that the coating quality is different according to the worker bar is a very high difficulty work.

In addition, in the case of the back portion, it is difficult for the operator to check the application state, there is a problem that even if the same worker to paint a constant coating quality can not be obtained.

Embodiment of the present invention is to provide a paint spraying device capable of painting a position that is difficult for the operator to paint.

In addition, to provide a paint spraying device having a constant paint quality.

A paint spraying apparatus according to an embodiment of the present invention includes a main body traveling along a member to be coated formed on a flat plate; An injection unit provided in the main body and injecting paint into the member to be coated; And a guide part extending from the main body, the guide part being maintained in contact with the member to be coated, wherein the injection unit includes an injector for injecting paint; An extension part for linearly moving the injector; A vertical rotating unit rotating the injector in a vertical direction with respect to the flat plate; And a horizontal rotating part which rotates the injector in the horizontal direction with respect to the flat plate.

The vertical rotating part may be installed on the extending part, and the extending part may be installed on the horizontal rotating part.

In addition, the stretching unit may be characterized in that for moving the injector linearly in the vertical direction with respect to the flat plate.

In addition, the horizontal rotating unit, the rotating shaft which is installed in the vertical direction with respect to the plate on the main body; A drive motor for rotating the rotating shaft; And a base coupled to the rotation shaft and rotated in a horizontal direction with respect to the plate.

In addition, the extension may be installed on the base.

In addition, the extension portion, the fixing portion provided in the horizontal rotating portion; A slider slidably coupled to the fixed part; A driving unit to move the slider; And a support part installed at the slider and supporting the vertical rotation part.

In addition, the vertical rotating portion, the support bracket is provided on the extension portion; A rotating bracket rotatably coupled to the support bracket, to which the injector is mounted; And it may be characterized in that it comprises a drive unit for rotating the rotating bracket with respect to the support bracket.

In addition, a pair of front wheels and a pair of rear wheels provided in the main body; A differential gear box connected to the rear wheels; And a driving motor for rotating the differential gear box.

In addition, the front wheel and the rear wheel provided on the main body; And a steering part provided on the main body and applying a force to rotate the front wheel in the direction of the member to be coated.

The guide unit may include: a guide arm connected to the rotary shaft of the front wheel and rotated along the front wheel in a left and right direction and in contact with the member to be coated; And a spacer provided in the main body and in contact with the member to be coated.

The guide part may include a guide arm which is in contact with the member to be coated and applies a force in a direction opposite to the force applied to the front wheel by the steering part to the front wheel. .

In addition, the guide arm is provided to be adjustable in length, the length of the guide arm may be characterized in that the front wheel is adjusted to proceed toward the front of the body.

The horizontal rotating unit may rotate the injector such that the injector does not face the to-be-painted member for a predetermined time after the start of paint spraying.

The horizontal rotating unit may rotate the injector so that the injector does not face the to-be-painted member for a predetermined time before the paint spraying ends.

In another aspect, the body according to an embodiment of the present invention; An injector direction adjusting device installed in the body to adjust a direction toward an injector for injecting paint; A front wheel and a rear wheel installed on the body and traveling on a flat plate; A steering shaft rotatably provided in a horizontal direction with respect to the plate and provided with a rotation shaft of the front wheel; A guide arm extending from the front wheel rotation shaft and in contact with a member to be coated perpendicularly to the plate; An elastic member for rotating the steering shaft in the direction of the member to be coated; And a spacer installed at the body, provided at the rear of the front wheel, and in contact with the member to be coated.

The guide arm and the spacer may be provided to be adjustable in length.

In addition, the injector direction control device, the horizontal rotating unit for rotating the injector in the horizontal direction with respect to the body; A vertical rotating part rotating the injector in a vertical direction with respect to the body; And an elongation unit for linearly moving the injector in the vertical direction with respect to the body.

The horizontal rotating part may be installed on the body, the extending part may be installed on the horizontal rotating part, and the vertical rotating part may be installed on the extending part.

In addition, the front wheel and the steering shaft may be provided with a pair on both sides of the body, the pair of the steering shaft may be connected by a connection bar connecting a link extending from the steering shaft may be rotated together. .

In addition, the front wheel and the rear wheel may be characterized in that the magnetic.

In addition, the length of the guide arm may be characterized in that the advancing direction of the front wheel is adjusted to achieve an angle within 2 ° of the front of the body.

According to the paint spraying device according to the embodiment of the present invention as described above, there is an advantage that the paint can be easily sprayed to a position that is difficult for the worker to paint.

In particular, there is an effect that it is easy to paint the back portion, which is a welded portion or a bent portion of the '┳' or '' 'shape that can be formed by welding or bending the two members.

In addition, there is an advantage that the painting operation of the back portion can be made to a certain quality.

1 is a perspective view showing the appearance of a paint spraying apparatus according to an embodiment of the present invention.
Figure 2 is a perspective view showing a state in which the cover of Figure 1 is removed.
3 is an enlarged view of a portion A of FIG. 2.
4 is a plan view showing a state in which the injection unit is removed in FIG.
5 is an enlarged perspective view of a portion B of FIG. 4.
6 is a view showing the rear wheel drive of FIG.
7 is a view showing an example of use of the paint spraying device of FIG.
8 is a view showing a straight running state and the initial driving state of the paint spraying device of FIG.

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

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a perspective view showing the appearance of a paint spraying apparatus according to an embodiment of the present invention.

Referring to FIG. 1, the paint spraying apparatus 10 according to an exemplary embodiment of the present invention sprays paint onto the to-be-painted member 20 while moving along a predetermined to-be-painted member 20 requiring painting. do.

The to-be-coated member 20 may be a '┳' or '┓' shaped member in which two members may be welded or bent.

In detail, the to-be-coated member 20 may be installed on the flat plate 30 on which the paint spraying device 10 is seated and moves, and the first member 21 and the protruding portion of the flat plate 30 are formed. It may include a second member 22 provided at the end of the first member 21. The first member 21 may be formed perpendicular to the flat plate 30, and the second member 22 may be formed perpendicular to the first member 21. That is, the member 20 to be coated may be formed in a '┳' or '┓' shape.

The flat plate 30 and the member to be coated 20 may be formed of a metallic steel material.

For example, the to-be-coated member 20 may be a part of the hull of a ship, and in particular, may be a longitudinal stiffener formed along the front and rear directions of the hull.

The first member 21 may be a plate formed to be bent in a straight line or a predetermined curvature, and the paint spraying device 10 is moved along the side surface of the first member 21.

In addition, the first member 21 and the second member 22 may be connected by welding, bonding, or the like. Alternatively, the member 20 to be coated may be integrally formed, and the second member 22 may be formed to be bent.

Here, the side surface of the first member 21, the bottom surface of the second member 22, the connection portion of the first member 21 and the second member 22 and the like are the member 20 to be coated. As a point difficult to observe from outside, it can be said to be the back part of the to-be-coated member 20.

The paint spraying apparatus 10 may be used for painting the back surface of the to-be-painted member 20, in particular the to-be-painted member 20. In detail, the paint spraying device 10 may have a height lower than that of the second member 22, which is described later, in close contact with the first member 21, and thus, the first member ( 21 can travel along the shape.

The paint spraying apparatus 10 includes a main body 100 including a traveling device, an injection unit 200 mounted on the main body 100 and spraying paint on the member 20 to be coated, and the main body 100. It may include a guide portion 300 for guiding to be moved along the to-be-coated member 20.

The main body 100 may be provided with wheels 120 and 140 to move the paint spraying device 10.

In addition, the main body 100 may include a cover 101 to protect the internal components, the cover 101 and the indicator light 102 for displaying the operating state of the paint spraying device 10 and the power source A jack 103 may be provided to which a supply cable (not shown) may be connected.

The injection unit 200 is provided with an injector 210 for injecting paint, the injector 210 may be moved in a vertical direction, tilted in a vertical direction, or rotated in a horizontal direction with respect to the flat plate 30. have.

The guide part 300 allows the paint spraying device 10 to be brought into close contact with the first member 21, and the paint spraying device 10 is moved by the guide part 300 to the first portion. The range of distance from the member 21 can be maintained.

Specific configurations and operations of the injection unit 200 and the guide unit 300 will be described later.

FIG. 2 is a perspective view illustrating the cover of FIG. 1 being removed, and FIG. 3 is an enlarged view of portion A of FIG. 2.

2 and 3, the main body 100 includes a body 110, a front wheel 120 and a steering unit 130 installed at a front end of the body 110, and a rear of the body 110. A rear wheel 140 installed at an end, a driving motor 150 driving the rear wheel 140, the rear wheel 140 and the differential gear box 160 to which the driving motor 150 is connected Can be.

The body 110 may be formed in a substantially rectangular plate shape, and may be formed of a metal or plastic material of high strength. In addition, the body 110 may be provided to be horizontally spaced apart from the flat plate 30 by the wheels 120 and 140.

In addition, the cover 101 may be formed in a box shape to protect components installed in the body 110, and may be coupled to the body 110.

The front wheel 120 may be provided at both front ends of the body 110, and the rear wheel 140 may be provided at both rear ends of the body 110.

In addition, the front wheel 120 and the rear wheel 140 may be formed of an object having a strong magnetic. For example, the wheels of the front wheel 120 and the rear wheel 140 may be formed of a magnetic material, or a magnetic material may be attached to the tire. Therefore, when the flat plate 30 is formed of a metal material, the paint spraying device 10 may move in close contact with the flat plate 30. In particular, even when the flat plate 30 forms a ceiling surface and a side surface of a specific structure, the paint spraying device 10 may be in close contact with the flat plate 30 by magnetic force. Therefore, the paint injector 10 may be used regardless of the position of the member 20 to be coated.

The steering part 130 is provided at both front ends of the body 110. The front wheel 120 is rotatably connected to the steering unit 130. The steering unit 130 may be configured to adjust the traveling direction of the front wheel 120, and may be configured to simultaneously change the traveling direction of the front wheel 120 on both sides.

In addition, the steering unit 130 maintains a state in which the main body 100 is in close contact with the first member 21 by steering the front wheel 120 to be biased toward the first member 21. Allow yourself to drive.

Detailed structure and operation of the steering unit 130 will be described later with reference to the drawings.

The rear wheel 140 may be connected to the differential gear box 160 to be rotated, and the wheels at both sides may be rotated at different rotational speeds. In addition, the power generated by the traveling motor 150 may be transmitted to the differential gear box 160 by the pulleys (FIGS. 4, 151, 152) and the belt (FIGS. 4, 153) to be described later. Details thereof will be described later with reference to the drawings.

Meanwhile, the main body 100 may be moved along the first member 21 by the guide part 300, and the distance between the body 110 and the first member 21 may be at a predetermined level. Can be maintained.

In detail, the guide part 300 is connected to the steering part 130 and installed on the body 110 and the guide arm 310 which can be rotated together when the traveling direction of the front wheel 120 is changed. Spacer 320 may be included.

The guide arm 310 and the spacer 320 are each formed to be adjustable in length, and may be adjusted to an appropriate length according to the environment of the paint spraying operation.

The guide arm 310 may be maintained in close contact with the first member 21 by the steering unit 130. In addition, the guide arm 310 is in close contact with the first member 21 and at the same time the spacer 320 is in close contact with the first member 21, so that between the body 110 and the first member 21. The distance of can be maintained at a constant level. Detailed description thereof will be described later with reference to the accompanying drawings.

On the other hand, the injection unit 200 is installed in the substantially central portion of the main body 100.

In detail, the spray unit 200 may be connected to a paint supply device (not shown) provided separately to inject a paint, and the sprayer 210 may be horizontal to the flat plate 30. A horizontal rotating part 220 to rotate, an extension part 230 to move the injector 210 in a straight line, and a vertical rotation part 240 to rotate the injector 210 in a vertical direction with respect to the flat plate 30. Can be.

The injector 210 may include a spray nozzle 211 through which the paint is sprayed, and the spray direction of the paint may be changed by changing the direction in which the spray nozzle 211 is directed. The injector 210 may be connected to the paint supply device and a hose (not shown), and may selectively spray the paint or adjust the spray pressure of the paint by a control signal of the controller 180 to be described later.

The horizontal rotating part 220 is provided to the driving motor 221, the rotating shaft 222 installed perpendicular to the body 110, the shaft of the driving motor 221, and the rotating shaft 222 to provide the driving motor 221. Gear base 223 for transmitting the driving force of the) to the rotary shaft 222, the base 224 is coupled to the rotary shaft 222 to rotate in the horizontal direction with respect to the body 110 and the plate 30 can do.

The drive motor 221 may be installed to be perpendicular to the rotation shaft 222, in which case the gear unit 223 may be a bevel gear assembly.

The driving motor 221 is selectively driven in response to a signal from the controller 180, and rotates the base 224 to horizontally extend the 230, the vertical rotating part 240, and the injector 210. Can be rotated.

The extension part 230 may be fixed to an upper surface of the base 224. Therefore, the extension 230 may also rotate together with the rotation of the base 224.

The extension 230 may move the injector 210 linearly. For example, the extension part 230 may linearly move the injector 210 in the vertical direction with respect to the flat plate 30.

In detail, the extension portion 230 is fixed to the base 224, the fixed portion 231, the slider 232 slidably coupled to the fixed portion 231, and coupled to the slider 232 The vertical rotating unit 240 may include a support 233 is installed.

The fixing part 231 may be provided with a rack (not shown) extending in a vertical direction with respect to the flat plate 30, and the slider 232 may have a pinion (not shown) and the pinion moved along the rack. A driving unit such as a driving motor (not shown) for driving the engine may be provided.

In addition, the slider 232 may be a multi-stage slider. In this case, each slider may be moved using a pulley and a wire.

The support part 233 may be formed in a plate shape protruding a predetermined length from the slider 232, and may be formed in parallel with the base 224. The vertical rotating part 240 may be fixed to an upper surface of the support part 233.

The vertical rotating part 240, the injector 210 is fixed, the rotating bracket 241 is rotated in a vertical direction with respect to the flat plate 30, the rotating bracket 241 is rotatably coupled to the support portion 233 It may include a support bracket 242 is fixed to, a rotating shaft 243 provided to the support bracket 242.

The rotating bracket 241 may be provided such that the injector 210 is installed at an angle inclined with respect to the base 224.

The rotation bracket 241 may rotate about the rotation shaft 243, and may include a driving unit such as a driving motor (not shown) that provides a rotational force of the rotation bracket 241. For example, the driving motor is fixedly mounted to the rotating bracket 241, and the rotating shaft 243 is formed with a driven gear corresponding to the driving gear formed in the driving motor, when the driving motor is operated the rotating bracket 241 may be formed to rotate.

The controller 180 may control each driving motor of the horizontal rotating part 220, the extending part 230, and the vertical rotating part 240 according to a preset work order or an operator's operation signal. The direction in which the spray nozzle 211 faces may be switched. That is, the controller 180 may rotate the direction in which the injection nozzle 211 faces in the vertical direction, linearly move in the vertical direction, or rotate in the horizontal direction with respect to the flat plate 30. Therefore, the paint spraying apparatus 10 can reliably coat the entire back surface of the to-be-coated member 20.

The worker may paint the to-be-coated member 20 by manipulating an operation device (not shown) connected to the paint spraying device 10 by wire or wirelessly. Therefore, the health of the worker can be protected.

Here, the horizontal rotating unit 220, the extending unit 230 and the vertical rotating unit 240 is to adjust the direction in which the injector 210 is directed, it may be referred to as an injector direction adjusting unit.

Hereinafter, a configuration and an operation of the steering unit 130 and the guide unit 300 for driving the main body 100 along the first member 21 will be described with reference to the drawings.

4 is a plan view illustrating a state in which the injection unit is removed from FIG. 2, FIG. 5 is an enlarged perspective view of part B of FIG. 4, and FIG. 6 is a view illustrating the rear wheel driving unit of FIG. 4.

4 to 6, the steering unit 130 may adjust the direction of the front wheel 120 such that the main body 100 proceeds in a direction biased toward the first member 21. If the guide arm 310 is not present, the main body 100 and the first member 21 are closer to each other.

Since the steering unit 130 may be formed on both sides of the body 110 in the same manner, the steering unit 130 provided on the left side of the body 110 will be described as an example.

In addition, for convenience of description, the first member 21 is located on the left side of the body 110, and the steering unit 130 will be described as an example to bias the front wheel 120 to the left direction.

In detail, the steering part 130 rotates in a horizontal direction (left and right direction in FIG. 4) of the body 110 to the steering shaft support part 131 and the steering shaft support part 131 fixed to the body 110. An elastic member for applying a force to rotate the steering shaft 132, the front wheel rotation shaft 133 extending from the steering shaft 132, and the steering shaft 132 in the direction of the first member 21 is possibly coupled ( 134, a link 135 connected to the steering shaft 132 and rotated together with the steering shaft 132, and an elastic member support part 136 supporting the elastic member 134.

In detail, the steering shaft support 131 may be formed in a '[' shape opening toward the side of the body 110. In more detail, the steering shaft support 131 may be composed of a lower member 131a having an 'L' shape and an upper member 131b having a '−' shape.

A hole may be formed in the upper member 131b to expose the upper end of the steering shaft 132, and a groove corresponding to the hole of the upper member 131b may be formed in the lower member 131a. The steering shaft 132 may be inserted into a groove of the lower member 131a and a hole of the upper member 131b to rotate in the horizontal direction of the body 110.

The upper member 131b may be coupled to an upper end of the lower member 131a after the steering shaft 132 is inserted into the groove of the lower member 131a.

The front wheel rotation shaft 133 extends from the substantially center portion of the steering shaft 132 to the side of the body 110 and may be integrally formed with the steering shaft 132. The front wheel 120 may be rotated by being fitted to the front wheel rotation shaft 133, in which the front wheel rotation shaft 133 may remain fixed without being rotated. A bearing or the like may be coupled to the front wheel rotation shaft 133 for smooth rotation of the front wheel 120.

The guide arm 310 may be connected to an end portion of the front wheel rotation shaft 133. Therefore, when the steering shaft 132 is rotated, the front wheel rotation shaft 133 and the guide arm 310 may be rotated together. In other words, when the guide arm 310 is pushed against the first member 21, the front wheel rotation shaft 133 and the steering shaft 132 may be rotated.

Meanwhile, the link 135 may be coupled to an upper end portion of the steering shaft 132 exposed through the hole of the upper member 131b. The link 135 is fixed to the steering shaft 132 to be rotated together with the steering shaft 132, it may be formed to extend a predetermined length in front of the upper member (131b).

In addition, the links 135 of the steering unit 130 provided at both sides of the body 110 may be connected by a connection bar 137. The connecting bar 137 is rotatably coupled to each link 135. Therefore, when a rotational force is applied to the steering shaft 132 of any one of the two steering unit 130, the rotational force of the steering unit 130 through the link 135 and the connecting bar 137 It can also be transmitted to the other steering shaft. In addition, the connection bar 137 may be directly connected to the steering shaft 132. In other words, the steering shafts 132 provided on both sides of the body 110 may be directly or indirectly connected to the connection bar 137 to interlock with each other. Therefore, the traveling direction of the front wheel 120 can be switched together at the same time.

On the other hand, the steering shaft support portion 131 may be formed with an elastic member first support portion 136a that can support one side of the elastic member 134, the link 135 or the steering shaft 132 The elastic member second support part 136b may be formed to support the other side of the elastic member 134.

In detail, the elastic member 134 applies an elastic force to the steering shaft 132 such that the steering shaft 132 is rotated in the direction of the first member 21. The elastic member 134 may be used, such as a rubber band, a spring, in particular a torsion spring may be used. In the present embodiment will be described as an example that the torsion spring is used as the elastic member 134. In this case, the upper member 131b may be formed with a rib 136c into which the central portion of the elastic member 134 is fitted.

The elastic member 134 may be fitted into the rib 136c and may be supported by the elastic member first support part 136a and the elastic member second support part 136b.

The elastic member first support part 136a may be formed on the upper member 131b and support one side of the elastic member 134. The elastic member first support part 136a may be formed in a structure in which one side of the elastic member 134 may be fitted so that the elastic member 134 is not removed.

The elastic member second support part 136b may be formed in the link 135, and when the front wheel 140 is biased toward the first member 21 side than when the front body 140 faces the front side of the body 110. The elastic member 140 may be provided to have a larger displacement. Accordingly, the link 135 and the steering shaft 132 are always subjected to an elastic force to rotate in the direction of the first member 21.

On the other hand, the steering shaft 132 also receives a force in the direction opposite to the elastic force by the guide arm 310.

In detail, the guide arm 310, the fixed arm 311 is coupled to the front wheel rotation shaft 133 and extends to the side of the front wheel 120 and the length adjusting arm coupled to the fixed arm 311 312 and a guide roller 313 provided at an end of the length adjusting arm 312.

The fixed arm 311 may be formed to be parallel to the front wheel rotation axis 133, and may include a slot for varying the coupling position of the length adjustment arm 312. The length adjusting arm 312 may be fixed to the fixing arm 311 by a fastening member such as a bolt coupled to the slot. The overall length of the guide arm 310 may be adjusted by adjusting the fixed position of the length adjusting arm 312 on the slot.

In particular, an end portion of the length adjusting arm 312 may be bent and extended forward of the body 110, and the first roller 313 may be provided at an end portion which is bent and extended. In this case, the force that the first member 21 pushes the first roller 313 may act as a rotation moment for rotating the fixed arm 311 to the front of the body 110.

The first roller 313 may rotate in contact with the first member 21. In addition, the first roller 313 may be magnetic so that the paint spraying device 10 may be moved more reliably along the first member 21 of a metallic material.

As described above, the guide arm 310 is supported by the first member 21, and the steering shaft 132 may receive a force in a direction opposite to that of the elastic force by the elastic member 134.

The guide arm 310 may be adjusted to a length at which the front wheel 120 may travel forward of the body 110. That is, the magnitude of the rotation moment applied to the steering shaft 132 by the guide arm 310 is applied to the steering shaft 132 when the front wheel 120 is advanced toward the front of the body 110. The length of the guide arm 310 may be adjusted to be equal to the magnitude of the moment due to the applied elastic force. Therefore, the main body 100 may go straight.

In the meantime, the spacer 320 is provided to extend in the same direction as the guide arm 310. The spacer 320 keeps the main body 100 together with the guide arm 310 at a predetermined range from the first member 21, and the main body 100 controls the first member 21. Can be moved accordingly.

In detail, the spacer 320 extends in the direction of the first member 21 and a length adjusting part 321 in which a slot can be formed, and a rotation that can be rotatably coupled to the length adjusting part 321. It may include a guide 322, and a second roller 323 provided at the end of the rotary guide 322.

The length adjusting part 321 is fixed to the body 110 by a fastening member such as a bolt coupled to the slot, and by adjusting the position where the fastening member is fixed on the slot, the length adjusting part 321 is the The length protruding from the body 110 may be adjusted.

The rotation guide 322 is hinged to an end of the length adjusting part 321 and is rotatably provided in a horizontal direction with respect to the body 110. A slot for guiding the rotation of the rotation guide 322 may be further formed at an end of the length adjusting part 321. Since the rotation guide 322 is rotatably provided, the body 110 may smoothly move along the first member 21 even if the first member 21 is curved.

In addition, like the first roller 313, the second roller 323 may rotate in contact with the first member 21 and may have magnetic properties.

The length of the spacer 320 may be adjusted to correspond to the length of the guide arm 310. That is, the length of the spacer 320 may be adjusted so that the first roller 313 and the second roller 323 may be rotated in contact with the first member 21 at the same time. In other words, the main body 100 is supported by the first member 21 at two points spaced apart by a predetermined distance in the front-rear direction, and can be stably moved along the first member 21. The distance to the first member 21 may be maintained in a predetermined range.

The main body 100 may move along the shape of the first member 21 by the steering unit 130 and the guide unit 300 having the above configuration.

In detail, the steering unit 130 and the guide arm 310 may adjust the traveling direction of the front wheel 120 to allow the main body 100 to move along the first member 21.

For example, when the first member 21 is formed vertically, the force applied to the steering shaft 132 by the guide arm 310 and the elastic member 134 is in equilibrium so that the front wheel 120 allows the body 100 to go straight.

When the first member 21 is bent in the opposite direction to the main body 100, as the main body 100 proceeds, the force of the first member 21 supporting the guide arm 310 is weak. Therefore, the steering shaft 132 is rotated in the direction of the first member 21 by the elastic force of the elastic member 134. Therefore, the front wheel 120 is rotated in the direction of the first member 21, the main body 100 may proceed along the curved shape of the first member 21. At this time, the rear side of the main body 100 is maintained by the spacer 320, the distance between the first member 21, the distance between the main body 100 and the first member 21 is maintained within a predetermined range. Can be.

When the first member 21 is bent in the main body 100 direction, the guide arm 310 is pushed on the first member 21 as the main body 100 proceeds, and the first member 21 is pushed. The force that the member 21 pushes the guide arm 310 is greater than the elastic force of the elastic member 134. Thus, the steering shaft 132 is rotated in a direction away from the first member 21. Accordingly, the front wheel 120 is rotated in a direction away from the first member 21, the main body 100 may proceed along the curved shape of the first member 21. At this time, the rear side of the main body 100 is maintained by the spacer 320, the distance between the first member 21, the distance between the main body 100 and the first member 21 is maintained within a predetermined range. Can be.

As described above, regardless of the shape of the first member 21, the main body 100 may move along the shape of the first member 21, and the main body 100 and the first member ( The distance between 21 can be kept within a certain range.

Therefore, the distance between the injection unit 200 and the to-be-coated member 20 installed in the main body 100 can also be maintained within a predetermined range, it is possible to maintain a constant paint quality.

In addition, since the direction change of the main body 100 is not forcibly made by friction, but is made by steering of the front wheel 120, the driving performance of the paint spraying device 10 may be maximized.

Meanwhile, in the present embodiment, for convenience of description, the front wheel 120 is adjusted so that the main body 100 can go straight to the length of the guide arm 310 as an example, the first member ( It may also be adjusted to proceed slightly biased in the 21) direction. In this case, the main body 100 basically tries to proceed in a direction closer to the first member 21. However, the distance between the main body 100 and the first member 21 by the guide arm 310 and the spacer 320 can not be narrowed by more than a predetermined level, the first member ( A force close to 21 is applied but the distance between the main body 100 and the first member 21 is maintained. Therefore, the main body 100 can be moved along the first member 21 more reliably.

In this case, when the angle of the front wheels 120 is large, a slip phenomenon may occur in the front wheels 120. Therefore, the running performance of the paint spraying device 10 is deteriorated, moving at a high speed, and painting cannot be performed. In addition, a problem may occur that the front wheel 120 is worn by friction. In this case, dust caused by abrasion may be attached to the to-be-coated member 20 together with the paint to reduce the coating performance. Therefore, the biased angle of the front wheel 120 may be limited. For example, the biased angle of the front wheel 120 may be set within 2 ° with respect to the front of the main body 100.

On the other hand, when the traveling direction of the main body 100 is changed by the front wheel 120, the number of revolutions of the left rear wheel 141 and the right rear wheel 142 will show a difference. While compensating for the difference in rotation speed, the differential gear box 160 may be used to transmit the driving force generated in the driving motor 150 to the rear wheel 140.

In detail, a first pulley 151 is connected to the rotation shaft of the driving motor 150, and a second pulley 152 is connected to one side of the differential gear box 160. The differential gear box 160 and the second pulley 152 are rotatably mounted to the support bracket 112 formed on the body 110.

The first pulley 151 and the second pulley 152 are connected by a belt 153, by which the rotational force of the traveling motor 150 is transmitted to the differential gear box 160 by the belt 153. Can be.

The differential gear box 160 is coupled to the housing 161, a pair of pinion gears 162 rotatably installed on the housing 161, and the pinion gear 162, and the rear wheel 140. And a pair of side gears 163 connected to it.

By the above structure, when the driving motor 150 is operated, the driving force is transmitted to the differential gear box 160 by the belt 153, and the rear wheel 140 may be rotated. Even if the traveling direction of the wheel 120 is changed, the rear wheel 140 may be rotated while minimizing resistance.

Therefore, the running performance of the paint injector 10 can be further improved.

Hereinafter, a use example of the paint spraying device 10 according to the embodiment of the present invention as described above will be described with reference to the drawings.

7 is a view showing an example of use of the paint spraying device of FIG.

Referring to FIG. 7, the paint spraying apparatus 10 may travel on the flat plate 30. In this case, the flat plate 30 may be a bottom surface of a predetermined structure, or may be a ceiling surface or a side surface.

In detail, since the front wheel 120 and the rear wheel 140 of the paint spraying device 10 may be formed to be magnetic, the paint spraying device 10 may be formed even if the flat plate 30 is a ceiling surface or a side surface. Is in close contact with the plate 30 may perform a painting operation.

That is, the paint spraying device 10 has an advantage that the paint can be easily sprayed to a position that is difficult for the worker to paint.

In particular, the paint spraying device 10 facilitates the back surface portion of the member 20 to be welded or bent in a '┳' or '┓' shaped member in which two members are welded or bent. You can paint. In detail, the paint spraying apparatus 10 rotates the direction in which the spray nozzle 211 faces in the horizontal and vertical directions with respect to the flat plate 30, or adjusts the height of the sprayer 210 to adjust the coating surface. The back surface of the member 20 can be easily painted.

In more detail, the paint spraying apparatus 10 may adjust the height of the injector 210 by operating the stretcher 230, and adjust the angle of the spray nozzle 211 by operating the vertical rotating part 240. It can be adjusted, by combining the movement of the extension portion 230 and the vertical rotating portion 240, it is possible to evenly paint the rear surface of the first member 21 and the second member 22.

In addition, in the present exemplary embodiment, a member having a '┳' or '┓' shape that may be formed by welding or bending the two members to the to-be-coated member 20 has been described as an example. The shape is not limited to this. That is, the paint spraying device 10 may paint an object having an arbitrary shape in which the guide part 300 may be in close contact with and moved.

FIG. 8 is a diagram illustrating a linear driving state and an initial driving state of the paint spraying device of FIG. 1.

Referring to FIG. 8, the paint spraying apparatus 10 may travel along a shape of the first member 21 while maintaining a distance within a predetermined range from the first member 21.

In detail, the paint spraying device 10 may change the traveling direction along the shape of the first member 21 by the interaction of the guide arm 310 and the steering unit 130, and the guide arm ( The distance between the first member 21 and a predetermined range may be maintained by the 310 and the spacer 320.

Therefore, even if the first member 21 is bent in an arbitrary direction, the distance between the injector 210 and the to-be-coated member 20 can be maintained within a predetermined range, so that the paint spraying device 10 is of constant quality. The to-be-coated member 20 can be coated with.

On the other hand, at the beginning of the paint spraying, the paint supply device may be operated at a high pressure momentarily to push the paint into the injector 210. Therefore, when the injector 210 is initially driven, the paint may be injected at a higher pressure than the set injection pressure.

In addition, at the end of the paint spraying, the injector 210 may spray the paint at a pressure lower than the set spraying pressure.

Therefore, the controller 180 may allow the spray nozzle 211 to face a direction other than the member 20 to be coated for a predetermined time from a paint spraying start time and a predetermined time from the paint spraying end time.

For example, the control unit 180 causes the spray nozzle 211 to spray toward the opposite direction of the to-be-coated member 20 at the start of paint spraying, and when the spray pressure is constant, the spray nozzle 211 It can be rotated in the direction of the member 20 to be coated.

In addition, the control unit 180 may stop the operation of the injector 210 after turning the spray nozzle 211 toward the opposite direction of the to-be-coated member 20 at the end of paint spraying.

Therefore, the same coating quality as other parts can be obtained at the starting point and the end point of the coating member 20.

As described above as a specific embodiment of the paint injector according to the embodiment of the present invention, this is only an example, the present invention is not limited to this, and should be construed as having the broadest range in accordance with the basic idea disclosed herein. do. Those skilled in the art can easily change the material, size, etc. of each component according to the application field, and can be combined / substituted the disclosed embodiments to implement a pattern of a timeless shape, but this also does not depart from the scope of the present invention will be. It will be apparent to those skilled in the art that various changes and modifications may be readily made without departing from the spirit and scope of the invention as defined by the appended claims.

10: paint spray device 20: coating member
30: flat plate 100: main body
101: cover 110: body
120: front wheel 130: steering
131: steering shaft support 132: steering shaft
133: front wheel rotation axis 134: elastic member
135: rib 136: elastic member support
137 connection bar 140 rear wheels
150: driving motor 151: first pulley
152: second pulley 153: belt
160: differential gear box 200: injection unit
210: injector 211: injection nozzle
220: horizontal rotation portion 230: extension portion
240: vertical rotating portion 300: guide portion
310: guide arm 320: spacer

Claims (21)

A main body traveling along a member to be coated formed on a flat plate and having a front wheel and a rear wheel;
An injection unit provided in the main body and injecting paint into the member to be coated;
A guide part extending from the main body and maintained in contact with the member to be coated; And
A steering part provided on the main body and applying a force to rotate the front wheel in the direction of the member to be coated,
The injection unit,
An injector for spraying paint;
An extension part for linearly moving the injector;
A vertical rotating unit rotating the injector in a vertical direction with respect to the flat plate; And
A horizontal rotating unit for rotating the injector in the horizontal direction with respect to the flat plate is included,
In the guide portion,
A guide arm connected to the rotary shaft of the front wheel and rotated in a horizontal direction of the main body together with the front wheel and in contact with the member to be coated; And
And a spacer provided on the main body, the spacer in contact with the member to be coated. The method of claim 1,
And the vertical rotating part is provided in the extending part, and the extending part is provided in the horizontal rotating part. The method of claim 1,
And the elongate portion linearly moves the injector in a vertical direction with respect to the flat plate. The method according to any one of claims 1 to 3,
The horizontal rotating part,
A rotating shaft installed in the main body in a direction perpendicular to the flat plate;
A drive motor for rotating the rotating shaft; And
And a base coupled to the rotating shaft and rotated in a horizontal direction with respect to the plate. The method of claim 4, wherein
And the elongate portion is installed in the base. A main body traveling along the member to be coated formed on the flat plate;
An injection unit provided in the main body and injecting paint into the member to be coated; And
A guide part extending from the main body and maintained in contact with the member to be coated,
The injection unit,
An injector for spraying paint;
An extension part for linearly moving the injector;
A vertical rotating unit rotating the injector in a vertical direction with respect to the flat plate; And
A horizontal rotating part for rotating the injector in the horizontal direction with respect to the flat plate,
In the extension portion,
A fixing part installed in the horizontal rotating part;
A slider slidably coupled to the fixed part;
A driving unit to move the slider; And
Paint spraying device is installed on the slider, characterized in that it comprises a support for supporting the vertical rotation. A main body traveling along the member to be coated formed on the flat plate;
An injection unit provided in the main body and injecting paint into the member to be coated; And
A guide part extending from the main body and maintained in contact with the member to be coated,
The injection unit,
An injector for spraying paint;
An extension part for linearly moving the injector;
A vertical rotating unit rotating the injector in a vertical direction with respect to the flat plate; And
A horizontal rotating part for rotating the injector in the horizontal direction with respect to the flat plate,
The vertical rotation portion,
A support bracket installed on the extension part;
A rotating bracket rotatably coupled to the support bracket, to which the injector is mounted; And
And a driving part for rotating the rotation bracket with respect to the support bracket. The method of claim 1,
A pair of front wheels and a pair of rear wheels provided on the main body;
A differential gear box connected to the rear wheels; And
Paint injection device further comprises a traveling motor for rotating the differential gear box. delete delete The method of claim 1,
The guide arm,
And a guide arm which is in contact with the member to be coated to apply a force in a direction opposite to the force applied to the front wheel by the steering unit to the front wheel. The method according to claim 1 or 11, wherein
The guide arm is provided to be adjustable in length,
The length of the guide arm is a paint spraying device, characterized in that the front wheel is adjusted to proceed toward the front of the main body. The method of claim 1,
And the horizontal rotating part rotates the injector so that the injector does not face the coated member for a predetermined time after the start of paint spraying or before the end of paint spraying. delete body;
An injector direction adjusting device installed in the body to adjust a direction toward an injector for injecting paint;
A front wheel and a rear wheel installed on the body and traveling on a flat plate;
A steering shaft rotatably provided in a horizontal direction with respect to the plate and provided with a rotation shaft of the front wheel;
A guide arm extending from the front wheel rotational shaft and in contact with a member to be coated perpendicularly to the flat plate;
An elastic member for rotating the steering shaft in the direction of the member to be coated; And
And a spacer installed at the body and provided at the rear of the front wheel and in contact with the member to be coated. The method of claim 15,
And the guide arm and the spacer are provided to be adjustable in length. The method of claim 15,
The injector direction control device,
A horizontal rotating part rotating the injector in a horizontal direction with respect to the body;
A vertical rotating part rotating the injector in a vertical direction with respect to the body; And
And a stretcher for linearly moving the injector in a vertical direction with respect to the body. The method of claim 17,
The horizontal rotating part is installed in the body,
The extension part is installed in the horizontal rotating part,
And the vertical rotating part is installed in the extending part. The method according to any one of claims 15 to 18,
The front wheel and the steering shaft is provided with a pair on both sides of the body,
A pair of said steering shaft, the paint spraying device, characterized in that connected by the connecting bar connecting the link extending from the steering shaft and rotated together. The method of claim 15,
And the front wheel and the rear wheel are magnetic. 17. The method of claim 16,
The length of the guide arm is a paint spraying device, characterized in that the advancing direction of the front wheel is adjusted to form an angle within 2 ° of the front of the body.

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