Painting apparatus

Abstract

A painting apparatus according to the present invention comprises: a cart unit that can travel; a painting module including a painting frame, which is coupled to the front side of the cart unit so as to be slidable in the left-right direction, a roller coupled to the painting frame, and a nozzle coupled to the painting frame so as to spray paint for application by the roller; a tank unit which stores a raw material for forming the paint or the paint therein, and which is coupled to the cart unit; a painting hose connecting the tank unit to the nozzle; and a hose support module which is coupled to the cart unit and which supports the painting hose.

Description

Painting device

[0001] The present invention relates to a painting device.

[0002] Architectural paints are applied to floors like parking lots and factory floors for dustproofing purposes. Paints can be categorized into thin-film and thick-film coatings. Applying paint to floors can improve dustproofing and enhance the aesthetics of the exterior.

[0003] Typically, paint is applied manually by a skilled worker. The worker rolls a paint-soaked roller across the surface of the object to be painted, allowing the paint to adhere to the surface.

[0004] However, manually applying paint to large areas, such as parking lot floors or factory floors, requires excessive time and labor to complete. Furthermore, despite the need for a uniform finish without any visual deviations, relying on manual labor carries a high risk of uneven paint quality. Furthermore, quality inconsistencies can be attributed to the skill level of the skilled worker, and the availability of skilled workers can determine whether the project can be completed.

[0005] Additionally, even if a device is provided to assist in uniform painting, there is a problem in that the paint hose for supplying the paint is interfered with by the components of the painting device, requiring constant operator management.

[0006] The present invention has been devised to solve such problems, and provides a painting device capable of applying paint with uniform quality without the intervention of a worker.

[0007] A painting device according to an embodiment of the present invention comprises: a carriage provided to be drivable; a painting module including a painting frame slidably coupled to a front side of the carriage in the left-right direction, a roller coupled to the painting frame, and a nozzle coupled to the painting frame so as to spray paint to be applied by the roller; a tank provided to store a raw material for forming the paint or the paint therein and coupled to the carriage; a paint hose connecting the tank and the nozzle; and a hose support module coupled to the carriage and supporting the paint hose.

[0008] Accordingly, paint can be applied with uniform quality without the intervention of the worker.

[0009] FIG. 1 is a perspective view showing a painting system according to a first embodiment of the present invention.

[0010] Figure 2 is a side view of a painting system according to a first embodiment of the present invention.

[0011] Figure 3 is a plan view of a painting system according to a first embodiment of the present invention.

[0012] Figure 4 is a perspective view showing a painting device according to the first embodiment of the present invention.

[0013] Figure 5 is a side view of a painting device according to the first embodiment of the present invention.

[0014] Figure 6 is a plan view of a painting device according to a second embodiment of the present invention.

[0015] Fig. 7 is a perspective view showing a part of the configuration of a roller module according to the first embodiment of the present invention.

[0016] Figure 8 is a drawing showing the roller module of Figure 7 viewed from below.

[0017] FIG. 9 is a drawing exemplarily showing a situation in which rollers are arranged symmetrically left and right in a roller module according to the first embodiment of the present invention.

[0018] FIG. 10 is a perspective view showing configurations of a roller module according to the first embodiment of the present invention that are not described in FIG. 7.

[0019] Fig. 11 is a perspective view of the suspension of the roller module of Fig. 10.

[0020] Fig. 12 is a drawing showing a roller module according to a third embodiment of the present invention.

[0021] Fig. 13 is a drawing showing a terminal roller adapter and roller used in the roller module of Fig. 12.

[0022] Fig. 14 is a drawing showing the intermediate roller adapter, the end roller adapter, and the roller used in the roller module of Fig. 12.

[0023] Fig. 15 is a drawing showing a roller module according to a fourth embodiment of the present invention.

[0024] Fig. 16 is a drawing showing a roller module according to the fifth embodiment of the present invention.

[0025] Fig. 17 is a cross-sectional view showing the connection state of the backbone and slider of Fig. 16.

[0026] Fig. 18 is a drawing showing a roller module according to the sixth embodiment of the present invention.

[0027] Fig. 19 is a drawing showing the tilt structure of Fig. 18.

[0028] Fig. 20 is a drawing showing the arrangement of rollers that can be implemented by the roller module of Fig. 18.

[0029] Figure 21 is a drawing conceptually illustrating a paint spraying method according to the first embodiment of the present invention.

[0030] Figure 22 is a drawing conceptually illustrating a paint spraying method according to the seventh embodiment of the present invention.

[0031] Figure 23 is a drawing conceptually illustrating a paint spraying method according to the eighth embodiment of the present invention.

[0032] Fig. 24 is a plan view of a hose support module according to the first embodiment of the present invention.

[0033] Fig. 25 is a side view of a hose support module according to the first embodiment of the present invention.

[0034] Fig. 26 is a front view of a hose support module according to the first embodiment of the present invention.

[0035] Fig. 27 is a perspective view of the left and right rails according to the first embodiment of the present invention.

[0036] Fig. 28 is a perspective view of an elevator roller according to the first embodiment of the present invention.

[0037] Figure 29 is a side view showing a scattering prevention cover part of a painting device according to the first embodiment of the present invention.

[0038] Figure 30 is a conceptual drawing showing the arrangement of the anti-flying cover and nozzle according to the first embodiment of the present invention.

[0039] Figure 31 is a drawing conceptually showing the operating state of the anti-flying frame of the anti-flying cover part according to the first embodiment of the present invention.

[0040] Figure 32 is a conceptual drawing showing the positions of various hooks arranged in the anti-flying frame of the anti-flying cover part according to the first embodiment of the present invention.

[0041] Figure 33 is a conceptual drawing showing an internal filter of a fly-prevention cover according to the first embodiment of the present invention.

[0042] Figure 34 is a conceptual drawing showing a state in which an internal filter according to the first embodiment of the present invention is coupled to an anti-flying frame.

[0043] Figure 35 is a conceptual drawing showing the outer cover of the anti-slip cover part according to the first embodiment of the present invention.

[0044] Figure 36 is a perspective view of the outer cover of the anti-flying cover part according to the first embodiment of the present invention.

[0045] Figure 37 is a conceptual drawing showing a state in which an outer cover according to the first embodiment of the present invention is coupled to a scatter prevention frame.

[0046] Figure 38 is a conceptual drawing showing a tank and a paint hose according to the first embodiment of the present invention.

[0047] Figure 39 is a conceptual drawing showing the arrangement of the tank and the bogie according to the first embodiment of the present invention.

[0048] Figure 40 is a drawing conceptually showing the arrangement of components of a tank according to the ninth embodiment of the present invention.

[0049] Figure 41 is a drawing conceptually showing the arrangement of the tank section, balance section, and bogie section according to the 10th embodiment of the present invention.

[0050] Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. When designating components in each drawing, it should be noted that, where possible, identical components will be given the same reference numerals, even if they appear in different drawings. Furthermore, when describing embodiments of the present invention, detailed descriptions of known components or functions will be omitted if they are deemed to hinder understanding of the embodiments of the present invention.

[0051] Additionally, terms such as first, second, A, B, (a), (b), etc. may be used to describe components of embodiments of the present invention. These terms are only intended to distinguish the components from other components, and the nature, order, or sequence of the components are not limited by the terms. When it is described that a component is "connected," "coupled," or "connected" to another component, it should be understood that the component may be directly connected or connected to the other component, but another component may also be "connected," "coupled," or "connected" between each component.

[0052] Fig. 1 is a perspective view showing a painting system (S) according to a first embodiment of the present invention. Fig. 2 is a side view of a painting system (S) according to a first embodiment of the present invention. Fig. 3 is a plan view of a painting system (S) according to a first embodiment of the present invention.

[0053] A painting system (S) according to a first embodiment of the present invention includes a painting device (1) and a driving device (2).

[0054] The driving device (2) is a device that moves the painting device (1) along the surface of the object to be painted. The driving device (2) can be placed on the surface of the object to be painted and can have a power source and wheels that can be driven by the power source. The power source can be a motor or actuator driven by electricity, or an internal combustion engine that runs using fuel, but its type is not limited thereto. The driving device (2) can be an autonomous mobile robot (AMR, Automated Mobile Robot) that can drive according to a situation according to programmed content, or a robot that can drive according to instructions from a worker. The driving device (2) can form a driving path such that areas where the painting device (1) applies paint at one time on the surface of the object to be painted without changing the driving direction overlap at least partially, thereby allowing uniform painting.

[0055] The painting device (1) may be coupled to the driving device (2) so that the painting device (1) may move in conjunction with the movement of the driving device (2), or the driving device (2) and the painting device (1) may be configured as one piece. The driving device (2) may be coupled to the carriage part (10) of the painting device (1). A part of the driving device (2) may be inserted into the lower side of the carriage platform (11) of the carriage part (10) and coupled with the carriage platform (11). The direction in which the driving device (2) travels is forward. The opposite direction is rearward, and in relation to the surface of the body to be painted, the painting system (S) is located on the upper side and the body to be painted is located on the lower side, and the direction orthogonal to the front-back direction and the up-down direction is the left-right direction. That is, in the specification of the present invention, the front-back, left-right, and up-down directions are relative and are determined depending on the state in which the painting system (S) is placed on the surface of the body to be painted.

[0056] The painting device (1) includes a cart section (10), a painting module, a tank section (50), and a paint hose (40). The painting device (1) may include a hose support module (60). The painting device (1) may include a scatter prevention cover section (70). The painting device (1) may include an electric part (90). The painting device (1) may include a module moving section (80).

[0057] Fig. 4 is a perspective view showing a painting device (1) according to a first embodiment of the present invention. Fig. 5 is a side view of a painting device (1) according to a first embodiment of the present invention. Fig. 6 is a plan view of a painting device (1b) according to a second embodiment of the present invention.

[0058] The bogie (10) is a part that is provided to be drivable. The bogie (10) is coupled with the aforementioned driving device (2) to form a painting system (S) and can be driven, but can also be driven by being pulled by manpower. The bogie (10) is coupled with the driving device (2) and may include a bogie platform (11) to which other components of the painting device (1) are coupled. The bogie platform (11) may be formed in a plate shape that is orthogonal to the vertical direction. A plurality of bogie wheels (12) may be rotatably coupled to the lower side of the bogie platform (11) to enable the bogie platform (11) to be driven. The bogie wheels (12) are formed in a caster shape to enable both left-right and front-back driving and may be coupled to the bogie platform (11) to be axially rotatable in the vertical direction, and thereafter may be axially rotatable in a direction orthogonal to the vertical direction. The wheel cover (13) is a component that surrounds the bogie wheel (12) and can prevent the bogie wheel (12) from being caught by other foreign substances or contaminated by paint. The wheel cover (13) may be formed in a cylindrical shape, but its shape is not limited thereto.

[0059] A tank unit (50) may be mounted on the front side of the cart platform (11). A painting module may be coupled to the rear side of the cart platform (11). The painting module may be coupled to the rear side of the cart platform (11) via a module moving unit (80). A front part (90) may be mounted on the painting module. The front part (90) may be positioned between the tank unit (50) and the painting module in the front-rear direction.

[0060] The electrical component (90) is a component that includes electronic equipment necessary for the operation or calculation of each part of the painting device (1). The electrical component (90) may include a processor that is electrically connected to each component of the painting device (1), and may include a battery that stores power and transmits it to the processor.

[0061] The processor can control each component of the painting device (1). The processor is a component that includes a device capable of logical operations that perform control commands, and may include a CPU (Central Processing Unit), etc. The processor is connected to various components of the painting device (1) according to an embodiment of the present invention, and can transmit signals according to control commands to each component, and can receive acquired information in the form of signals by being connected to various sensors or acquisition units. Since the processor can be electrically connected to each component, it can be connected to a wire or have a communication module capable of wireless communication to communicate with each other. The processor is electrically connected to the driving device (2), and can transmit information or control commands of the painting device (1) to the driving device (2), and can also receive information or control commands of the driving device (2) from the driving device (2).

[0062] The painting device (1) further includes a storage medium, so that control commands performed by the processor can be stored and utilized in the storage medium. The storage medium may be a device such as a hard disk drive (HDD), a solid state drive (SSD), a server, a volatile medium, a non-volatile medium, etc., but its type is not limited thereto. In addition, data required for the processor to perform a task, etc., may be further stored in the storage medium.

[0063] A paint hose (40) connects the tank (50) and the painting module. Paint can be delivered from the tank (50) to the painting module through the paint hose (40) and discharged through the nozzle (30). The paint can be formed from raw materials stored in the tank (50), or the tank (50) can store the paint and then discharge it. The discharged paint can be applied to the surface of the object to be painted. The paint hose (40) can be made of a soft material, but can also be formed of a hard pipe, etc.

[0064] The module moving unit (80) connects the cart unit (10) and the painting module, and can be configured to allow the painting module to move relative to the cart unit (10). The module moving unit (80) can include a cart connection unit (81) coupled to the rear side of the cart unit (10). The module moving unit (80) can include a module connection unit (83) coupled to the painting module. The module moving unit (80) according to the first embodiment of the present invention can include a module linear movement unit (82) coupled to the cart connection unit (81) and the module connection unit (83), and allowing the module connection unit (83) to move relative to the cart connection unit (81). The module moving unit (80) can include a module movement drive unit (84). The module movement driving unit (84) is coupled to the module linear movement unit (82) and can transmit driving force to a part of the module linear movement unit (82) coupled to the module connection unit (83) to cause linear movement.

[0065] The module movement driving unit (84) may be a motor, actuator, etc. that receives power and generates driving force, but its type is not limited thereto. The module linear movement unit (82) may be provided with a rail that is coupled to the carriage connection unit (81), and a sliding box that is coupled to the module connection unit (83) so as to be slidable left and right with respect to the rail, thereby enabling such relative linear movement. However, the form of the structure that enables the relative linear movement is not limited thereto.

[0066] The module moving part (80b) of the painting device (1b) according to the second embodiment of the present invention may include a swing arm, as illustrated in FIG. 6. The swing arm can rotate axially in the up-and-down direction. One end of the swing arm is coupled to the carriage part (10b), and the other end is coupled to the painting module, so that the position of the roller module (20b) included in the painting module can change with respect to the carriage part (10b) according to the rotation of the swing arm. The swing arm may be configured as a manipulator capable of rotating in various directions, which is a type of robot arm, but its type is not limited thereto, and may also be configured as a link assembly capable of rotating axially in the up-and-down direction. Since the painting device (1b) according to the second embodiment of the present invention differs from the painting device (1) according to the first embodiment of the present invention only in the configuration of the module moving part (80b), the description of the painting device (1) according to the first embodiment can be applied to the description of the remaining components of the painting device (1b) according to the second embodiment.

[0067] A painting module according to a first embodiment of the present invention is configured to paint a paint on the surface of a body to be painted. The painting module includes a roller module (20) and a nozzle (30). The roller module (20) is configured to widely spread the paint on the surface of the body to be painted by means of a roller (23) that rotates along the surface of the body to be painted. The nozzle (30) is a component that discharges the paint to be spread on the surface of the body to be painted by the roller module (20) onto the roller (23) or the surface of the body to be painted. The nozzle (30) is connected to a paint hose (40) to receive the paint from a tank (50).

[0068] The nozzle (30) may be configured in plurality. The nozzle (30) may be coupled to the spraying movement unit (24) included in the painting frame of the roller module (20) so that its position can be determined. The spraying movement unit (24) may extend in the left-right direction, and the nozzle (30) may move left-right along the spraying movement unit (24) so ​​as to determine the position of the nozzle (30) in the left-right direction. The plurality of nozzles (30) may be arranged to be spaced apart from each other based on the left-right direction. However, the spraying movement unit (24) may also change the position of the nozzle (30) in the front-back direction or the up-down direction. The spraying movement unit (24) may determine the position of the nozzle (30), and the spraying movement unit (24) may also change the position of the nozzle (30) while painting is being performed.

[0069] Roller module (20)

[0070] Fig. 7 is a perspective view showing a portion of a roller module (20) according to a first embodiment of the present invention. Fig. 8 is a drawing showing the roller module (20) of Fig. 7 as viewed from below and upward. Fig. 9 is a drawing exemplarily showing a situation in which rollers (23) are arranged symmetrically left and right in a roller module (20) according to the first embodiment of the present invention.

[0071] A roller module (20) according to the first embodiment of the present invention includes a paint frame and a roller (23). The paint frame includes a shaft (22) and a base portion (21).

[0072] The shaft (22) is a component to which the roller (23) is rotatably coupled. The shaft (22) extends in the left-right direction, and both ends thereof are rotatably coupled to the base portion (21). The shaft (22) may include a first shaft (221) and a second shaft (222) that is parallel to the first shaft (221) and spaced rearward from the first shaft (221). In the first embodiment of the present invention, it is described that a total of two shafts (22) are arranged, but the number of shafts (22) is not limited thereto.

[0073] The roller module (20) may include a soccer ball. The soccer ball is coupled to a shaft (22) and transmits power to the shaft (22) to rotate the shaft (22) axially in the left-right direction. The soccer ball may be a motor, actuator, or the like that receives power and generates driving force, but the type is not limited thereto. The soccer ball may include a first soccer ball coupled to a first shaft (221) and a second soccer ball coupled to a second shaft (222). The soccer ball may be coupled to and fixed to the base (21).

[0074] The base portion (21) is a portion where the first shaft (221) and the second shaft (222) are rotatably coupled. The base portion (21) may include a shaft base (211). The shaft (22) may be rotatably coupled to the shaft base (211). The shaft base (211) may include a rib (2111) and a backbone (2112). The ribs (2111) may be configured as a pair, and may extend in the front-back direction but may be spaced apart from each other in the left-right direction. However, the number of ribs (2111) is not limited thereto. The backbone (2112) may extend in the left-right direction to connect a pair of ribs (2111). The number of backbones (2112) may be one or multiple.

[0075] The base portion (21) may include a connecting base (213). The connecting base (213) may extend upward from the front side of the shaft base (211) and may be coupled to a module connecting portion (83). An injection moving portion (24) may be coupled to the connecting base (213).

[0076] The roller (23) is a cylindrical component that can apply paint to the surface of a body to be painted by contacting and rotating the surface of the body to be painted. The roller (23) can be coupled to each shaft (22) so as to be rotatable axially in the left-right direction. The roller (23) includes a plurality of first rollers (231) coupled to a first shaft (221) and a plurality of second rollers (232) coupled to a second shaft (222).

[0077] The boundaries of the plurality of second rollers (232) do not coincide with the boundaries of the plurality of first rollers (231) when viewed in the front-back direction. The first rollers (231) and the second rollers (232) may be arranged in a zigzag pattern, as can be seen in FIGS. 7 and 8 . As can be seen in FIG. 9 , the left-right length of one of the second rollers (R2) may be formed differently from the other rollers, so that the boundaries of the first rollers (R1) and the second rollers (R2), which can be viewed in the front-back direction, may not coincide with each other.

[0078] Since the boundaries of the first rollers (231) and the second rollers (232) are not aligned with each other, the paint is first applied to the surface of the object to be painted by the first roller (231), and then the uneven surface of the paint formed at the boundary of the first rollers (231) can be spread by the second roller (232), thereby forming a paint surface with a uniform surface.

[0079]

[0080] Roller module (20) - suspension (25)

[0081] Fig. 10 is a perspective view showing the configurations of a roller module (20) according to the first embodiment of the present invention, which are not described in Fig. 7. Fig. 11 is a perspective view of the suspension (25) of the roller module (20) of Fig. 10.

[0082] The base (21) may include a driving base (212). The driving base (212) may be located above the shaft base (211) and the roller (23). The driving base (212) may include a driving front / rear base (2121) and a driving left / right base (2122). The driving front / rear bases (2121) may be configured as a pair, and may extend in the front / rear direction but may be spaced apart from each other in the left / right direction. However, the number of the driving front / rear bases (2121) is not limited thereto. The driving left / right bases (2122) may extend in the left / right direction to connect a pair of the driving front / rear bases (2121). The number of the driving left / right bases (2122) may be one or multiple.

[0083] The base (21) may include a module wheel (214). The module wheels (214) may be configured in multiple numbers and may be coupled to the lower side of the base (2121) before and after driving so that the roller (23) module can drive when pulled by the cart (10).

[0084] The roller module (20) according to the first embodiment of the present invention may include a suspension (25). The suspension (25) is coupled to the shaft (22) and the base portion (21). The suspension (25) may be coupled to a buffer protrusion (225) protruding from a portion of the first shaft (221) and to the left and right driving bases (2122) among the driving bases (212) of the base portion (21). The suspension (25) may buffer the movement of the roller (23) in the up-and-down direction and prevent a portion of the shaft (22) that is not supported by the base portion (21) from sagging.

[0085] The suspension (25) may include a buffer base (251), a lifting rod (252), a spacer (253), and an elastic member (254). The buffer base (251) is a part that is connected to the driving base (212), may be formed in a block shape, and may be opened in the vertical direction to form a base hole.

[0086] The lifting rod (252) penetrates the base hole to enable relative elevation with respect to the buffer base (251). The lifting rod (252) may have a shape extending in the vertical direction, and may have screw threads formed on the outer surface. The lifting rod (252) may have relative vertical movement with respect to the buffer base (251) within a range not limited by other components.

[0087] The spacer (253) can surround the lifting rod (252) and be coupled to the lifting rod (252). The spacer (253) can be coupled to the lifting rod (252) at the lower side of the buffer base (251). An elastic member (254) can be arranged between the spacer (253) and the buffer base (251). The elastic member (254) can be movably coupled to the spacer (253) and the buffer base (251). The elastic member (254) can be a coil spring that can be compressed or extended in the vertical direction to apply an elastic restoring force to the spacer (253) and the buffer base (251) along the vertical direction, but the type thereof is not limited thereto.

[0088] The suspension (25) may include a lower adjustment member (256) that is movably connected to the lifting rod (252) at the lower side of the spacer (253) so as to pressurize the spacer (253) upward. The lower adjustment member (256) may pressurize the spacer (253) upward as it rises along the lifting rod (252), or may be lowered so as to lower the spacer (253) along the lifting rod (252). The lower adjustment member (256) may include a double nut. The double nut used as the lower adjustment member (256) is connected to the lifting rod (252) and then rotated so that the lower adjustment member (256) can be raised and lowered along the lifting rod (252).

[0089] The suspension (25) may include an upper adjustment member (255). The upper adjustment member (255) may be movably coupled to the lifting rod (252) so as to adjust the distance by which the lifting rod (252) can descend relative to the buffer base (251). The upper adjustment member (255) is coupled to the lifting rod (252) at the upper side of the buffer base (251) and has a portion that does not overlap with the base hole when viewed in the vertical direction, thereby preventing the lifting rod (252) from being separated downward from the buffer base (251). The upper adjustment member (255) may include a double nut. The double nut used as the upper adjustment member (255) is coupled to the lifting rod (252) and then rotated so that the upper adjustment member (255) can be elevated along the lifting rod (252). As the vertical position of the upper adjustment member (255) changes, the vertical range in which the lifting rod (252) can be used for its intended purpose can be determined.

[0090] The suspension (25) may include an upper knob (257). The upper knob (257) is coupled to the buffer base (251) and may be selectively coupled to the lift rod (252) to selectively limit the height of the lift rod (252). The upper knob (257) may penetrate the buffer base (251) in the left-right direction or the front-back direction and may be coupled to the lift rod (252).

[0091] The suspension (25) may include a lower knob (258). The lower knob (258) may be coupled to the lower end of the lifting rod (252). The lower knob (258) may be coupled to the buffer protrusion (225) and the lifting rod (252), thereby coupling a portion of the shaft (22) and the base portion (21) via the suspension (25).

[0092] The portion of the lifting rod (252) to which the upper knob (257) or the lower knob (258) is coupled may be formed in such a manner that a fastening hole (2524) for coupling the upper knob (257) or the lower knob (258) is formed in an upper flat portion (2522) in which a plane perpendicular to the upper knob (257) is formed in the rod body (2521) or a lower flat portion (2523) in which a plane perpendicular to the lower knob (258) is formed in the rod body (2521). Accordingly, the entire rod body (2521) of the lifting rod (252) is formed in a cylindrical shape and screw threads are formed on the outside thereof, but the upper flat portion (2522) and the lower flat portion (2523) may be formed by cutting the rod body (2521) into a plane perpendicular to the left-right direction or the front-back direction.

[0093] The suspension (25) may be composed of multiple pieces and support the shaft (22). The suspension (25) may be coupled to adjacent portions of the two ends of the shaft (22), or may be coupled to the center of the shaft (22) or to points dividing the shaft (22) equally.

[0094] Fig. 12 is a drawing showing a roller module according to a third embodiment of the present invention. Fig. 13 is a drawing showing a terminal roller adapter (263c) and a roller (Rc) used in the roller module of Fig. 12. Fig. 14 is a drawing showing a middle roller adapter (264c), a terminal roller adapter (263c), and a roller (Rc) used in the roller module of Fig. 12.

[0095] Since the painting device according to the third embodiment of the present invention differs from the painting device (1) according to the first embodiment of the present invention only in the configuration of the roller module, the description of the painting device (1) according to the first embodiment can be applied to the description of the remaining components of the painting device according to the third embodiment.

[0096] The shaft base (211c) of the base portion includes a pair of ribs (2111c) extending in the front-back direction but spaced apart from each other in the left-right direction, and a backbone (2112c) extending in the left-right direction and connecting the pair of ribs (2111c). The first shaft (221c) and the second shaft (222c) can connect the front and rear ends of the pair of ribs (2111c), respectively. The backbone (2112c) can be located between the first shaft (221c) and the second shaft (222c) in the front-back direction.

[0097] The paint frame may include a rotation support (261c, 262c). The rotation support (261c, 262c) may have a shape of a perforated plate with a hole at one end. A shaft (221c, 222c) may pass through the hole formed in the rotation support (261c, 262c). The rotation support (261c, 262c) may include a plurality of first rotation supports (261c) and a plurality of second rotation supports (262c). The plurality of first rotation supports (261c) may be arranged to be spaced apart from each other in the left-right direction while being coupled to the backbone (2112c) and passing the first shaft (221c). The plurality of second rotation supports (262c) may be arranged to be spaced apart from each other in the left-right direction while being coupled to the backbone (2112c) and passing the second shaft (222c). With respect to the left-right direction, the positions at which the plurality of first rotation supports (261c) are coupled to the backbone (2112c) may be different from the positions at which the plurality of second rotation supports (262c) are coupled to the backbone (2112c). The first roller is coupled between the plurality of first rotation supports (261c), and the second roller is coupled between the plurality of second rotation supports (262c), so that the boundaries of the first rollers and the boundaries of the second rollers may not coincide with each other along the front-back direction.

[0098] The paint frame may include a plurality of roller adapters (263c, 264c). The roller adapters (263c, 264c) may include a first roller adapter and a second roller adapter. The plurality of first roller adapters may connect between the plurality of first rollers and the plurality of first rotation supports (261c) or between the first rollers. The plurality of second roller adapters may connect between the plurality of second rollers and the plurality of second rotation supports (262c) or between the second rollers. By the roller adapters (263c, 264c), a gap formed between the rotation supports (261c, 262c) and the roller (Rc) may be filled, thereby preventing the roller (Rc) from freely moving along the shaft (221c, 222c).

[0099] The first roller adapter may include a first end roller adapter (263c) connecting between a plurality of first rollers and a plurality of first rotation supports (261c), and a first intermediate roller adapter (264c) connecting between the first rollers. The first end roller adapter (263c) may have a shape such that one end can be inserted into a hole formed in the first rotation support (261c), and the other end may have a plurality of protrusions that can be inserted into and coupled to the first roller. The first intermediate roller adapter (264c) has a plurality of protrusions at both ends, so that it can be inserted into and coupled to the first rollers, respectively.

[0100] The second roller adapter may also include, like the first roller adapter, a second end roller adapter (263c) connecting between a plurality of second rollers and a plurality of second rotation supports (262c), and a second intermediate roller adapter (264c) connecting between the second rollers. The second end roller adapter (263c) may be formed like the first end roller adapter (263c), and the second intermediate roller adapter (264c) may be formed like the first intermediate roller adapter (264c).

[0101] The first soccer eastern part (223c) is positioned on the right rib (2111c), and the second soccer eastern part (224c) is positioned on the left rib (2111c). Although the positions are shown as being adjacent to the center in the front-back direction, the positions are not limited thereto.

[0102] Fig. 15 is a drawing showing a roller module according to a fourth embodiment of the present invention.

[0103] Since the painting device according to the fourth embodiment of the present invention differs from the painting device (1) according to the first embodiment of the present invention only in the configuration of the roller module, the description of the painting device (1) according to the first embodiment can be applied to the description of the remaining components of the painting device according to the fourth embodiment.

[0104] The paint frame of the roller module according to the fourth embodiment may include a base portion and a holder (27d). The shaft base (211c) of the base portion may have a backbone (2112d) extending in the left-right direction and a rib (2111d) connected by the backbone (2112d).

[0105] The holder (27d) may include a first holder (271d) and a second holder (272d). A plurality of first holders (271d) may be coupled to the backbone (2112d) and spaced apart from each other in the left-right direction. A plurality of second holders (272d) may be coupled to the backbone (2112d) and spaced apart from each other in the left-right direction. The first holder (271d) may be arranged to protrude forward from the backbone (2112d), and the second holder (272d) may be arranged to protrude backward from the backbone (2112d).

[0106] A plurality of first rollers may be respectively coupled to a plurality of first holders (271d). A plurality of second rollers (232d) may respectively be coupled to a plurality of second holders (272d). The plurality of first rollers and the plurality of second rollers (232d) may be arranged in a zigzag pattern with respect to each other. The first holders (271d) and the second holders (272d) may be arranged spaced apart from each other in the left-right direction on the rails formed on the backbone (2112d). In Fig. 15, only one second roller (232d) is illustrated for convenience. The positions at which the first holders (271d) and the second holders (272d) are coupled to the rails formed on the backbone (2112d) may be appropriately changed based on the left-right direction along the rails.

[0107] The first holder (271d) may include a first hanger (2711d), a first lifting member (2712d), and a first holding base (2713d). The first hanger (2711d) is a portion to which the first roller (231) is coupled, and may have a shape in which an elongated member is bent several times, as illustrated. The end of the first hanger (2711d) is inserted into the first roller, so that the first roller (231) can be rotatably coupled to the first hanger (2711d). The first lifting member (2712d) is a portion to which the first hanger (2711d) is coupled. The first holding base (2713d) is a portion to which the first lifting member (2712d) is coupled so as to be able to be elevated, and is coupled to the backbone (2112d). Accordingly, the first hanger (2711d) can be raised and lowered according to the raising and lowering of the first lifting member (2712d). The raising and lowering structure of the first lifting member (2712d) is implemented with a worm gear, so that the first hanger (2711d) can be raised and lowered according to the rotation of the first lifting member (2712d) in the up-and-down direction as the axial direction.

[0108] The second holder (272d) may include a second hanger corresponding to the first hanger (2711d), a second lifting member corresponding to the first lifting member (2712d), and a second holding base corresponding to the first holding base (2713d).

[0109] Fig. 16 is a drawing showing a roller module according to the fifth embodiment of the present invention. Fig. 17 is a cross-sectional view showing the connection state of the backbone (2112e) and the slider (28e) of Fig. 16.

[0110] Since the painting device according to the fifth embodiment of the present invention differs from the painting device according to the third embodiment of the present invention only in the configuration of the roller module related to the arrangement of the slider (28e), the description of the painting device (1) according to the first and third embodiments can be applied to the description of the remaining components of the painting device according to the fifth embodiment.

[0111] The shaft base (211e) includes a pair of ribs (2111e) extending in the front-back direction but spaced apart from each other in the left-right direction, and a backbone (2112e) extending in the left-right direction and connecting the pair of ribs (2111e). The first shaft (221e) and the second shaft (222e) may connect the front and rear ends of the pair of ribs (2111e), respectively. The backbone (2112e) may be located between the first shaft (221e) and the second shaft (222e) in the front-back direction.

[0112] A paint frame according to a fifth embodiment includes a plurality of sliders (28e). The sliders (28e) are slidably coupled to a backbone (2112e) in a left-right direction and can be coupled to rotation supports (261e, 262e). The plurality of sliders (28e) may include a first slider (281e) and a second slider (282e). The first slider (281e) is slidably coupled to the backbone (2112e) in a left-right direction and can be coupled to a plurality of first rotation supports (261e). The second slider (282e) is slidably coupled to the backbone (2112e) in a left-right direction and can be coupled to a plurality of second rotation supports (262e).

[0113] The first slider (281e) can be coupled to the front side of the backbone (2112e), and the second slider (282e) can be coupled to the rear side of the backbone (2112e), respectively, surrounding a portion of the backbone (2112e). As illustrated in Fig. 17, in a cross-section cut along a plane orthogonal to the left and right, each slider (28e) can have a protrusion protruding toward the backbone (2112e) so that it can be inserted into a rail formed on the backbone (2112e).

[0114] A first rotation support (261e) may extend forward from the first slider (281e). A second rotation support (262e) may extend rearward from the second slider (282e). The first rotation support (261c) is slidably coupled to a first sliding rail (2812e) formed by digging along the left-right direction in the first sliding base (2811e) of the first slider (281e), so that the position relative to the left-right direction on the first slider (281e) may be changed. The second slider (282e) may also have a corresponding second sliding base and a second sliding rail.

[0115] The first slider (281e) and the second slider (282e) slide relative to the backbone (2112e) in the left-right direction, so that the positions of the first rotation support (261e) and the second rotation support (262e) on the first shaft (221e) and the second shaft (222e) can change, and accordingly, the relative positions of the first roller and the second roller can change.

[0116] Fig. 18 is a drawing showing a roller module according to the sixth embodiment of the present invention. Fig. 19 is a drawing showing the tilt structure of Fig. 18. Fig. 20 is a drawing showing the arrangement of rollers (231f, 232f) that can be implemented by the roller module of Fig. 18.

[0117] Since the painting device according to the sixth embodiment of the present invention differs from the painting device (1) according to the first embodiment of the present invention only in the configuration of the roller module, the description of the painting device (1) according to the first embodiment can be applied to the description of the remaining components of the painting device according to the sixth embodiment.

[0118] A shaft base (211f) according to the sixth embodiment includes a pair of ribs (2111f) spaced apart from each other in the left-right direction, and a backbone (2112f) extending in the left-right direction and connecting the pair of ribs (2111f). The backbone (2112f) can be connected to the front ends of the pair of ribs (2111f). The pair of ribs (2111f) can be rotatably connected to the backbone (2112f) in an axial direction in the vertical direction.

[0119] The paint frame according to the sixth embodiment may include a plurality of carriers (29f). The carriers (29f) may include a first carrier (291f) and a second carrier (292f). The first carrier (291f) is axially rotatably connected to a pair of ribs (2111f) at each end thereof in the vertical direction, and a plurality of first rotation supports are connected thereto. The second carrier (292f) is axially rotatably connected to a pair of ribs (2111f) at each end thereof in the vertical direction, and a plurality of second rotation supports are connected thereto.

[0120] The first shaft and the second shaft can be respectively coupled to a plurality of first rotation supports coupled to the first carrier (291f) and a plurality of second rotation supports coupled to the second carrier (292f).

[0121] A first rotation support may extend forward from the first carrier (291f). A second rotation support may extend rearward from the second carrier (292f). The first rotation support is slidably coupled to a first carrier rail (2912f) formed by digging along the left-right direction in the first carrier base (2911f) of the first carrier (291f), so that the position relative to the left-right direction on the first carrier (291f) may be changed. The second carrier (292f) may also have a corresponding second carrier base and second carrier rail.

[0122] The first carrier end portion (2913f) may be formed at the left and right ends of the first carrier base (2911f). The first carrier end portion (2913f) may be coupled to the first carrier hinge (2914f), and the first carrier hinge (2914f) may be coupled to the rib (2111f) to be capable of axially rotating in the vertical direction. Accordingly, even if the rib (2111f) axially rotates in the vertical direction with respect to the backbone (2112f), the first carrier (291f) may remain aligned in the left and right direction. The second carrier (292f) may also have a corresponding second carrier end portion and a second carrier hinge.

[0123] A shaft base (211) according to the sixth embodiment may include a rib drive unit (2114f) and a rib hinge (2113f). The rib hinge (2113f) may be arranged at the front end of the rib (2111f) to rotatably couple the rib (2111f) and the backbone (2112f) with each other. The rib drive unit (2114f) may be arranged adjacent to the rib hinge (2113f) and coupled to the backbone (2112f) and may have a pair of cylinders that contact the left and right sides of the rib (2111f), respectively. Each cylinder may rotate axially in the up-and-down direction to rotate the rib (2111f) about the rib hinge (2113f). As the rib (2111f) is rotated, the first roller (231f) and the second roller (232f) can be arranged so that their boundaries do not coincide even if they have the same size and number as shown in FIG. 20.

[0124] Nozzle (30)

[0125] FIG. 21 is a conceptual diagram illustrating a paint spraying method according to a first embodiment of the present invention. FIG. 22 is a conceptual diagram illustrating a paint spraying method according to a seventh embodiment of the present invention. FIG. 23 is a conceptual diagram illustrating a paint spraying method according to an eighth embodiment of the present invention.

[0126] The nozzle (30) is coupled to the paint frame and is arranged to spray paint for application by the roller (23). There may be a plurality of nozzles (30), and they may be movably coupled to the spraying moving part (24). The nozzle (30) may be connected to a paint hose (40) to spray paint. Paint may be transferred from the tank part (50) to the nozzle (30) through the paint hose (40). The nozzle (30) may be arranged in a posture so as to spray paint in a downward or downwardly inclined direction toward the roller (23) or around the roller (23) so that the roller (23) can apply the paint.

[0127] The nozzle (30) according to the first embodiment provides paint to the first roller (231) by directly spraying the paint onto the first roller (231). The nozzle (30) may be arranged so as to look downward from the upper side of the first roller (231). The second roller (232) may follow the first roller (231) and further spread the paint applied by the first roller (231) onto the surface of the object to be painted. The nozzle (30g) according to the seventh embodiment has a pinhole and is arranged to provide paint to the first roller (231) by flowing the paint onto the first roller (231). The nozzle (30h) according to the eighth embodiment is arranged to flow or spray the paint around the first roller (231). The nozzle (30h) according to the eighth embodiment may be an air spray type nozzle. The nozzle (30h) according to the eighth embodiment can be positioned so as to face a downwardly inclined direction from the front to the rear of the first roller (231). The paint sprayed by the nozzle (30h) reaches the front side of the first roller (231), and the paint that has reached the front side is sequentially spread by the first roller (231) and the second roller (232) to apply the paint to the surface of the object to be painted.

[0128] Since the painting devices according to the seventh and eighth embodiments of the present invention differ only in the configuration of the nozzle in relation to the painting device (1) according to the first embodiment of the present invention, the description of the painting device (1) according to the first embodiment can be applied to the description of the remaining components of the painting devices according to the seventh and eighth embodiments.

[0129] Hose support module (60)

[0130] Fig. 24 is a plan view of a hose support module (60) according to a first embodiment of the present invention. Fig. 25 is a side view of a hose support module (60) according to a first embodiment of the present invention. Fig. 26 is a front view of a hose support module (60) according to a first embodiment of the present invention. Fig. 27 is a perspective view of left and right rails (622) according to a first embodiment of the present invention. Fig. 28 is a perspective view of an elevator roller (6232) according to a first embodiment of the present invention.

[0131] The tank section (50) is provided to store raw materials or paint for forming paint therein, and is connected to the cart section (10). The paint hose (40) connects the tank section (50) and the nozzle (30). The hose support module (60) is connected to the cart section (10) and supports the paint hose (40).

[0132] The hose support module (60) may include a base arm (61) and a support base (62). The base arm (61) is coupled to the bogie (10) and is rotatably coupled to the support base (62). The support base (62) is axially coupled to the front end of the base arm (61) so as to be rotatably vertically, and supports the paint hose (40). The base arm (61) and the support base (62) may be coupled in a knuckle joint manner. Accordingly, a base arm hinge (612) is formed at the front end of the base arm body (611), and a support arm hinge (626) is formed at the rear end of the support base (62), so as to be rotatably coupled to each other.

[0133] The support base (62) may include an elevation rail (623) and an elevation hook (624). The elevation rail (623) extends in the vertical direction. The elevation hook (624) is slidably connected to the elevation rail (623) and supports the paint hose (40). That is, when the paint hose (40) moves in the vertical direction, the elevation hook (624) can assist the movement and support the paint hose (40).

[0134] The lifting hook part (624) may include a lifting member (6241) and a lifting hook (6242). The lifting member (6241) may be coupled to the lifting rail (623) and may extend in the left-right direction. The lifting hook (6242) is a hook-shaped part formed at both left-right ends of the lifting member (6241). A paint hose (40) may be inserted and secured into the lifting hook (6242), so that the paint hose (40) may be supported by the lifting hook (6242).

[0135] The support base (62) may include a support arm (621) and left and right rails (622). The support arm (621) is connected to the base arm (61) via a base arm hinge (612). The left and right rails (622) are portions that extend in the left and right direction from the front end of the support arm (621) when the support arm (621) and the base arm (61) are arranged in parallel, and to which the elevator rail (623) is connected so as to be slidable in the left and right direction. The upper end of the elevator rail (623) may be slidably connected to the left and right rails (622). Therefore, when viewed from the front, the left and right rails (622) and the elevator rail (623) may be arranged in a 'T' shape.

[0136] An elevator roller (6232) is coupled to the upper part of the rail body (6231) extending in the vertical direction of the elevator rail (623), and the elevator roller (6232) is inserted into the inner side of the left and right rails (622) having a slit open downward, so that the elevator rail (623) protruding downward from the left and right rails (622) through the slit can be slid relative to the left and right rails (622). The elevator structure of the elevator rod (252) for the elevator rail (623) can also be configured similarly.

[0137] The base base (62) may have a base base portion (625). The base base portion (625) is coupled to the lower end of the elevator rail (623) and may extend left and right from the elevator rail (623).

[0138] The hose support module (60) may include an intermediate hook portion (63) that is coupled to at least one of the base arm (61) or the support base (62) to support the paint hose (40). The intermediate hook portion (63) may include a portion extending downward from the base arm (61) or the support base (62) and a hook-shaped portion formed at the lower end of the extended portion, so that the paint hose (40) may be inserted and secured in the hook portion and supported.

[0139] By having a hose support module (60) as described above, the paint hose (40) can be easily supported for movement in various directions even when the nozzle (30) moves or the paint module moves relative to the carriage (10). Therefore, when the hose support module (60) is used, the paint hose (40) can be less likely to lose support and cause interference or damage in relation to other components.

[0140] Anti-slip cover (70)

[0141] Fig. 29 is a side view showing a scattering prevention cover part (70) of a painting device (1) according to the first embodiment of the present invention. Fig. 30 is a drawing conceptually showing the arrangement of the scattering prevention cover part (70) and the nozzle (30) according to the first embodiment of the present invention. Fig. 31 is a drawing conceptually showing the operation state of the scattering prevention frame (71) of the scattering prevention cover part (70) according to the first embodiment of the present invention. Fig. 32 is a drawing conceptually showing the positions of various hooks arranged on the scattering prevention frame (71) of the scattering prevention cover part (70) according to the first embodiment of the present invention.

[0142] The anti-splatter cover (70) is a part that is connected to the paint frame so as to cover the nozzle (30) when viewed from the rear. By positioning the anti-splatter cover (70), it is possible to prevent the paint provided by the nozzle (30) from splashing onto areas other than the area requiring painting of the object to be painted, thereby damaging the appearance.

[0143] The anti-scattering cover part (70) may include an anti-scattering frame (71). The anti-scattering frame (71) is coupled to a paint frame. The anti-scattering frame (71) may include a covering base part (711) coupled to the paint frame, and a covering rotation part (712) coupled to the covering base part (711) so as to be rotatable in the left-right direction in an axial direction.

[0144] The shielding base (711) may have a shape extending in the vertical direction when viewed in the left-right direction. The shielding rotation part (712) may have a folded state in which the shielding base (711) and the shielding rotation part (712) are arranged to match each other when viewed in the left-right direction, and an unfolded state in which the shielding base (711) and the shielding rotation part (712) are arranged to form a predetermined angle with each other. The shielding rotation part (712) may be coupled to the lower end of the shielding base (711). When viewed in the front-back direction in the folded state, the shielding rotation part (712) and the shielding base (711) may have a portion extending in the left-right direction and a portion extending downward from each end of the portion extending in the left-right direction, respectively. The lower ends of a pair of extended portions of the shielding base (711) and the shielding rotation part (712) may be coupled to each other so as to be rotatable in the left-right direction in an axial direction.

[0145] The anti-scattering cover (70) may include an inner filter (72) and an outer cover (73) that covers the inner filter (72) when viewed from the rear when in an unfolded state. The inner filter (72) and the outer cover (73) may each have one end joined to a covering base (711) and the other end joined to a covering rotation part (712). Accordingly, when the anti-scattering frame (71) unfolds, the inner filter (72) and the outer cover (73) unfold, and when the anti-scattering frame (71) folds, the inner filter (72) and the outer cover (73) fold.

[0146] The anti-scattering cover part (70) may include a plurality of shielding hooks that are coupled to the anti-scattering frame (71). The shielding hooks may include a plurality of internal shielding hooks (715, 716, 717). The shielding hooks may include a plurality of external shielding hooks (713, 714). Internal filter hooks (722, 723) of the internal filter (72) may be detachably coupled to the internal shielding hooks (715, 716, 717), and external cover hooks (732, 733) of the external cover (73) may be detachably coupled to the external shielding hooks (713, 714). Therefore, the internal filter (72) and the external cover (73) may be easily replaced by a worker as needed.

[0147] The inner shielding hooks (715, 716, 717) may include an inner upper shielding hook (715) that is coupled to the uppermost portion of the shielding base (711). The inner shielding hooks (715, 716, 717) may include an inner lower shielding hook (716) that is coupled to the shielding rotation part (712). The inner shielding hooks (715, 716, 717) may include an inner middle shielding hook (717) that is coupled to the shielding base (711) between the inner lower shielding hook (716) and the inner upper shielding hook (715).

[0148] The external shielding hooks (713, 714) may include an external upper shielding hook (713) that is coupled to the uppermost portion of the shielding base (711). The external shielding hooks (713, 714) may include an external lower shielding hook (714) that is coupled to the shielding rotation part (712).

[0149] Fig. 33 is a conceptual drawing of an internal filter (72) of a scatter prevention cover part (70) according to a first embodiment of the present invention. Fig. 34 is a conceptual drawing of an internal filter (72) according to a first embodiment of the present invention coupled to a scatter prevention frame (71).

[0150] The inner filter (72) includes an inner filter body (721). The inner filter body (721) covers the nozzle (30). The inner filter body (721) may be a paper filter having a plurality of perforations (720) perforated therein. The inner filter body (721) may be easily folded or unfolded by connecting a plurality of filter pieces extending left and right in the vertical direction.

[0151] The inner filter (72) may include a plurality of inner filter hooks (722, 723) that are detachably coupled to a plurality of inner shielding hooks (715, 716, 717) and coupled to an inner filter body (721). The inner filter hooks (722, 723) may include an inner upper filter hook (722) that is coupled to an upper portion of the inner filter body (721). Some of the plurality of inner upper filter hooks (722) may be detachably coupled to the inner upper shielding hook (715). Others of the plurality of inner upper filter hooks (722) may be detachably coupled to an inner middle shielding hook (717).

[0152] Specifically, among the plurality of internal upper filter hooks (722), some located on the inner side in the left-right direction can be coupled to the internal upper shielding hook (715), and other some located on the outer side can be coupled to the internal middle shielding hook (717). Accordingly, as shown in the drawing, the internal filter body (721) can be unfolded in a form that surrounds the internal space formed by the anti-scattering frame (71).

[0153] The inner filter hook (722, 723) may include an inner lower filter hook (723) that is coupled to the lower end of the inner filter body (721). The inner lower filter hook (723) may be detachably coupled to the inner lower cover hook (716).

[0154] Fig. 35 is a conceptual drawing of an outer cover (73) of a scatter prevention cover part (70) according to a first embodiment of the present invention. Fig. 36 is a perspective view of an outer cover (73) of a scatter prevention cover part (70) according to a first embodiment of the present invention. Fig. 37 is a conceptual drawing of an outer cover (73) according to a first embodiment of the present invention coupled to a scatter prevention frame (71).

[0155] The outer cover (73) may include an outer cover body (731). The outer cover body (731) may have accordion-shaped folds formed along the left-right direction. The outer cover body (731) may include an outer cover front side wall (7311) and an outer cover side wall (7312) extending from both left-right ends of the outer cover front side wall (7311) and being perpendicular to the left-right direction. The outer cover body (731) may surround the anti-scattering frame (71) and cover the anti-scattering frame (71) and the internal filter (72) located therein from the outside.

[0156] The outer cover (73) may include a plurality of outer cover hooks (732, 733) that are detachably connected to a plurality of outer shield hooks (713, 714) and connected to an outer cover body (731). The outer cover hooks (732, 733) may include an outer top cover hook (732) that is connected to the top of the outer cover body (731). The plurality of outer top cover hooks (732) may be detachably connected to the outer top shield hook (713).

[0157] The outer cover hook (732, 733) may include an outer bottom cover hook (733) that is coupled to the lower end of the outer cover body (731). The outer bottom cover hook (733) may be detachably coupled to the outer bottom covering hook (714).

[0158] Tank section (50)

[0159] Fig. 38 is a drawing conceptually showing a tank section (50) and a paint hose (40) according to the first embodiment of the present invention. Fig. 39 is a drawing conceptually showing the arrangement of a tank section (50) and a bogie section (10) according to the first embodiment of the present invention.

[0160] The tank section (50) is a section that includes components for storing paint or raw materials for forming paint. The tank section (50) can be coupled and mounted on the carriage section (10). Therefore, the painting device (1) can store a predetermined amount of paint in the tank section (50) and move while continuously supplying paint to the nozzle (30) without having to receive paint from a separate paint supply source.

[0161] The tank section (50) may include a paint tank (51) configured to store paint therein. The paint tank (51) may include a first paint tank (511) and a second paint tank (512) configured to store paint therein and arranged in a left-right direction. The first paint tank (511) may be positioned relatively to the left, and the second paint tank (512) may be positioned relatively to the right.

[0162] The materials stored in the first paint tank (511) and the second paint tank (512) may be different types of paints or raw materials. For example, the paint to be applied by the painting device (1) may be a two-component paint, so the main agent may be stored in the first paint tank (511), and the hardener may be stored in the second paint tank (512). The paint may be formed by mixing the main agent and the hardener. By storing the main agent and the hardener separately, the painting device (1) may store the raw materials for forming the paint for a long period of time.

[0163] In order to mix the material stored in the first paint tank (511) and the material stored in the second paint tank (512) and deliver them to the nozzle (30), the paint hose (40) may include a first hose portion (41) connected to the first paint tank (511) and a second hose portion (42) connected to the second paint tank (512). The painting device (1) may include a static mixer (43) disposed in the paint hose (40) to mix the materials discharged from the two paint tanks (51). The painting device (1) may include a paint pump (44) for pressurizing and delivering the paint formed by mixing the raw materials by the static mixer (43) to the nozzle (30). The painting device (1) may include a paint valve (45) disposed in the paint hose (40) to determine whether to deliver the paint to the nozzle (30).

[0164] The painting device (1) may include a hose filter (47). A hose filter (47) for filtering foreign substances from the raw material may be placed in each of the first hose section (41) and the second hose section (42).

[0165] The painting device (1) may include a detergent supply unit (46). The detergent supply unit (46) may be connected to a section between two paint tanks (51) of the paint hose (40) and the static mixer (43) so as to supply detergent to the section. The detergent supply unit (46) may include a detergent tank (460). The detergent tank (460) may contain detergent. The detergent stored in the detergent tank (460) may be delivered to the paint hose (40). The detergent supply unit (46) may include a detergent valve (461). In order to determine whether to deliver the detergent to the paint hose (40), the detergent valves (461) may be arranged in each of the first hose section (41) and the second hose section (42). The detergent valve (461) may be a three-way valve.

[0166] The painting device (1) may include a temperature control unit (52) configured to control the temperature of two paint tanks (51). The temperature control units (52) may be configured in multiple numbers and placed in each of the two paint tanks (51), and may be controlled by a processor to heat or cool the material stored in each paint tank (51). The temperature control unit (52) may include a heat exchanger such as a plate heat exchanger or a fin-tube heat exchanger to enable temperature control, and may also include a thermoelectric element or resistor capable of generating or absorbing heat, but the type thereof is not limited thereto.

[0167] The painting device (1) may include a flow control unit. The flow control unit may be configured in multiple numbers and may be connected to two paint tanks (51) and a paint hose (40) respectively to control the amount of raw materials supplied from the two paint tanks (51) to the nozzle (30). The flow control unit may be electrically connected to and controlled by a processor and may include a flow control valve to control the flow rate, but its configuration is not limited thereto.

[0168] The tank unit (50) may include a tank position adjustment unit (53). The tank position adjustment unit (53) may be coupled to two paint tanks (51) to adjust the positions of the two paint tanks (51) along the left-right direction. The two paint tanks (51) may be mounted on the tank position adjustment unit (53).

[0169] The tank position adjustment unit (53) may include a conveyor (531). Two paint tanks (51) are mounted on the conveyor (531) and can rotate axially in the forward and backward directions. The conveyor (531) is composed of two, and two paint tanks (51) can be mounted on each. A first paint tank (511) can be mounted on the first conveyor (5311), and a second paint tank (512) can be mounted on the second conveyor (5312).

[0170] Figure 40 is a drawing conceptually showing the arrangement of components of a tank section (50i) according to the ninth embodiment of the present invention.

[0171] Since the painting device according to the ninth embodiment of the present invention differs only in the configuration of the tank portion from the painting device (1) according to the first embodiment of the present invention, the description of the painting device (1) according to the first embodiment can be applied to the description of the remaining components of the painting device according to the ninth embodiment.

[0172] The conveyor (531i) of the tank position control unit (53i) according to the 9th embodiment is configured as one, so that two paint tanks (511, 512) are installed on one conveyor (531i) and the two paint tanks (511, 512) can move together in the left and right directions as the conveyor (531i) rotates.

[0173] The tank position control unit (53) according to the first embodiment may include a weight acquisition unit (532). The weight acquisition unit (532) may acquire the weight of two paint tanks (51) mounted on the conveyor (531). The weight acquisition unit (532) may be arranged between the conveyor (531) and the paint tank (51). The weight acquisition unit (532) may be configured in plurality to acquire the weight of each paint tank (51). The first weight acquisition unit (5321) may acquire the weight of the first paint tank (511), and the second weight acquisition unit (5322) may acquire the weight of the second paint tank (512). The weight acquisition unit (532) and the conveyor (531) may be electrically connected to a processor and controlled.

[0174] The processor may be set to drive the conveyor (531) to align the center of gravity of the two paint tanks (51) with the center of gravity of the cart (10) in the left-right direction based on the weight value acquired by the weight acquisition unit (532). The processor may receive information from the conveyor (531) about the position at which each paint tank (51) is arranged in the left-right direction on the conveyor (531) to acquire the center of gravity. The processor calculates the center of gravity from the weight information of each paint tank (51) received from the weight acquisition unit (532) and the position information of each paint tank (51) received from the conveyor (531), and assuming that the center of gravity of the cart (10) is located between the two conveyors (5311, 5312), the processor can drive the conveyor (531) so that the center of gravity of the paint tank (51) matches the center of gravity of the cart (10) or the center of gravity of the paint tank (51) is located within a predetermined range from the center of gravity of the cart (10).

[0175] The painting device according to the ninth embodiment of the present invention can improve driving stability by driving the conveyor (531) so that the center of gravity of the paint tank (51) is located. If the driving stability of the painting device is reduced, it may cause the appearance of the paint to deteriorate.

[0176] Fig. 41 is a drawing conceptually showing the arrangement of the tank section (50j), balance section (54j), and bogie section (10) according to the 10th embodiment of the present invention.

[0177] The painting device according to the tenth embodiment of the present invention differs from the painting device (1) according to the first embodiment of the present invention only in the configuration of the balance part (54j) and the lift part (55j), so the description of the painting device (1) according to the first embodiment can be applied to the description of the remaining components of the painting device according to the tenth embodiment.

[0178] The tank part (50j) according to the 10th embodiment includes a balance part (54j). The balance part (54j) can be mounted on the carriage part (10) so that the tank position adjustment part (53) is mounted thereon and can tilt in the left-right direction according to the positions of the centers of gravity of the tank position adjustment part (53) and the two paint tanks (511, 512). The balance part (54j) can be positioned between the carriage part (10) and the tank position adjustment part (53). The lower surface of the balance part (54j) that comes into contact with the carriage part (10) can be formed into a downwardly convex curved surface, and the upper surface of the balance part (54j) on which the tank position adjustment part (53) is mounted can be formed into a plane shape that is orthogonal to the vertical direction. The balance part (54j) can be formed symmetrically with respect to the left and right directions, and the center of the balance part (54j) can be located at the center of gravity of the cart part (10). Therefore, if the centers of gravity of the tank position adjustment part (53) and the paint tanks (511, 512) mounted on the balance part (54j) do not coincide with the center of gravity of the cart part (10) and are not located at the center of the balance part (54j), the balance part (54j) tilts in one direction.

[0179] The tank unit (50j) may include a tilt acquisition unit that is provided to acquire the degree of inclination of the tank position adjustment unit (53). The tilt acquisition unit may be electrically connected to a processor. The processor may be set to drive the conveyor so that the tilt acquired by the tilt acquisition unit falls within a predetermined range. The processor may cause the tilt acquired by the tilt acquisition unit to fall within a predetermined range, thereby causing the centers of gravity of the paint tanks (511, 512) and the tank position adjustment unit (53) to coincide with the center of gravity of the cart unit (10) or fall within a predetermined range.

[0180] The tank portion (50j) may include a lift portion (55j). The lift portion (55j) may be coupled to the cart portion (10) so as to be in contact with the tilted balance portion (54j) so as to limit the degree to which the balance portion (54j) tilts. The lift portion (55j) may be formed of an elastic material and may oscillate to support the cart portion (10) and the balance portion (54j). When the balance portion (54j) tilts excessively, the lift portion (55j) may apply a restoring force due to elasticity to the balance portion (54j) to push the balance portion (54j) back to its original position.

[0181] Although all components constituting the embodiments of the present invention have been described above as being combined or operating in combination, the present invention is not necessarily limited to these embodiments. That is, within the scope of the purpose of the present invention, all components may be selectively combined and operated one or more times. In addition, terms such as "include," "comprise," or "have" described above, unless specifically stated to the contrary, mean that the corresponding component may be inherent, and therefore should be interpreted as including other components rather than excluding other components. All terms, including technical or scientific terms, have the same meaning as generally understood by a person of ordinary skill in the art to which the present invention pertains, unless otherwise defined. Commonly used terms, such as terms defined in a dictionary, should be interpreted as being consistent with the contextual meaning of the related technology, and shall not be interpreted in an ideal or overly formal sense, unless explicitly defined in the present invention.

[0182] The above description is merely an illustrative illustration of the technical idea of ​​the present invention, and those skilled in the art will appreciate that various modifications and variations can be made without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the technical idea of ​​the present invention, and the scope of the technical idea of ​​the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within a scope equivalent thereto should be interpreted as being included in the scope of the rights of the present invention.

Claims

1. A drivable tow truck; A painting module including a painting frame that is slidably connected to the front side of the above-mentioned vehicle in the left-right direction, a roller connected to the painting frame, and a nozzle connected to the painting frame so as to spray paint to be applied by the roller; A tank part provided to store raw materials for forming the paint or the paint therein and connected to the cart part; A paint hose connecting the tank portion and the nozzle; and A painting device, comprising a hose support module coupled to the above-mentioned vehicle and supporting the paint hose.

2. In paragraph 1, The above hose support module is a painting device including a base arm coupled to the bogie, and a support base that is axially rotatably coupled to the front end of the base arm in the up-and-down direction and supports the paint hose.

3. In paragraph 2, A painting device in which the above base rock and the above support base are connected in a knuckle joint manner.

4. In paragraph 2, A painting device, wherein the support base includes an elevating rail extending in an up-down direction, and an elevating hook portion slidably connected to the elevating rail and supporting the paint hose.

5. In paragraph 4, A painting device, wherein the support base further includes a support arm coupled to the base arm, and left and right rails extending in the left and right direction from the front end of the support arm when the support arm and the base arm are arranged parallel to each other, and to which the lifting rail is coupled so as to be able to slide in the left and right direction.

6. In paragraph 4, A painting device, wherein the above-mentioned lifting hook part includes an lifting member that is coupled to the lifting rail and extends in the left-right direction, and a lifting hook in the shape of a hook formed at both left-right ends of the lifting member.

7. In paragraph 2, A painting device, wherein the hose support module further includes an intermediate hook portion that is coupled to the base arm or the support base to support the paint hose.

8. A drivable tow truck; A tank unit comprising two paint tanks arranged in a left-right direction to store raw materials for forming paint or the paint therein, a tank position adjusting unit coupled to the two paint tanks to adjust the positions of the two paint tanks in the left-right direction, and a tank unit mounted on the bogie; A painting module comprising a paint frame including a first shaft extending in a left-right direction, a second shaft parallel to the first shaft and spaced apart from the first shaft in a front-back direction, and a base portion to which the first shaft and the second shaft are rotatably coupled, a roller module including a plurality of first rollers coupled to the first shaft, and a plurality of second rollers coupled to the second shaft but having boundaries that do not coincide with boundaries of the plurality of first rollers when viewed in a front-back direction, a nozzle coupled to the paint frame to spray the paint to be applied by the first roller and the second roller, and a scattering prevention cover coupled to the paint frame to cover the nozzle when viewed along the rear; and A paint hose connecting the above tank portion and the nozzle; A hose support module coupled to the above-mentioned bogie and supporting the paint hose; and A suspension including a buffer base provided on the roller module, an elevating rod penetrating a base hole formed by opening the buffer base in the vertical direction to enable relative elevation with respect to the buffer base, a spacer surrounding the elevating rod and coupled to the elevating rod, and an elastic member movably coupled to the spacer and the buffer base; A painting device including:

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