Coating thickness adjustment system using clearance maintaining wheel

Abstract

The present invention relates to a coating thickness adjusting system using a gap maintaining wheel, in which when the gap maintaining wheel is rotated about an axis while being in contact with a covering surface, a coating roller contacts the coating surface with a uniform pressure, thereby maintaining a predetermined coating thickness regardless of the proficiency of a worker, even if the coating roller is applied to an automatic coating system, the coating thickness can be adjusted even if the coating roller is applied to the automatic coating system. Especially, when the coating roller is used for coating in the step area of the covering surface, the guide roller is protruded to the area expanded compared with the outer diameter of the coating roller by the supporting arm, and the intaglio step area not in contact with the coating roller is grounded, the coating roller and the covering surface are kept parallel by improving the structure, so that the coating roller is not in contact with the covering surface. The coating thickness deviation caused by inclination of the coating roller is prevented, the coating quality is improved, and the coating device comprises the coating roller (10), a shaft (20) and a gap maintaining wheel (30) as a main structure.

Description

Technical Field

[0001] The present invention relates to a coating thickness adjustment system using a gap holding wheel, and more specifically, to a coating thickness adjustment system using a gap holding wheel, wherein when the gap holding wheel rotates around an axis while being grounded to a coating surface, a coating roller is guided to contact a coating surface with uniform pressure, thereby maintaining a predetermined coating thickness regardless of the proficiency of a worker, and even if the coating roller is applied to an automatic coating system, paint of uniform thickness can be applied, and in particular, when the coating roller is coating (passing) on ​​a step area of ​​a coating surface, the guide roller is protruded by a support arm to an area expanded compared to the outer diameter of the coating roller, and is grounded to an engraved step area that does not contact the coating roller, and the coating thickness adjustment system using a gap holding wheel is improved in structure to keep the coating roller and the coating surface parallel, thereby preventing coating thickness deviation caused by inclination of the coating roller and improving coating quality. Background Art

[0002] Usually, in order to paint the exterior walls of buildings and structures, workers use a hanging basket installed on the roof of the building to hang a work platform on ropes so that it can move up and down, and paint directly when the workers climb onto the work platform, or when the workers descend along ropes fixed to the roof to perform paint operations.

[0003] At this time, the painting operation mainly adopts the spraying method or the roller method. The spraying method has a serious problem of paint flying, so the roller method is mostly used. However, in the case of the roller method, the gap between the rollers on the painting surface is uneven depending on the proficiency of the workers, resulting in large differences in coating thickness and coating quality.

[0004] Therefore, in the prior published registered patent No. 10-1484169, in a device for painting the exterior wall of a building or structure, the device comprises: a housing, the surface of which is open opposite to the exterior wall; A coating roller portion, consisting of at least one roller rotatably mounted inside the shell for coating the outer wall; and a coating unit, including a paint supply portion for supplying paint to the upper portion of the coating roller portion; and a capstan portion, detachably mounted on the upper portion of the outer wall, for winding and taking out at least one wire connected to the shell; and a control unit, including a wire guide portion, the wire guide portion being detachably arranged at the front portion of the capstan portion to prevent interference with the upper structure of the outer wall and the wire, the wire guide portion causing the wire to move horizontally, the wire guide portion including at least one supporting member, the supporting member being detachably mounted on the upper portion of the outer wall on the front side of the capstan portion, and a guide member, rotatably connected to the supporting member to prevent interference between the wire and the upper structure of the outer wall and causing the wire to move horizontally.

[0005] However, the purpose of the prior art is to prevent splashing of coating paint and improve the coating quality, but due to the structural characteristics of providing multiple gap adjustment holes on the outer wall side of the shell to adjust the gap between the outer wall and the shell, the gap adjustment holes are provided at a position separated from the coating roller portion, so the volume increases, and when there is a step on the coating surface, when the gap adjustment hole rises to the step surface, the coating roller portion is separated from the coating surface, resulting in a reduction in coating thickness. Summary of the invention

[0006] Technical issues to be solved The present invention is proposed in view of the above-mentioned problems, and its purpose is to provide a coating thickness adjustment system using a gap keeping wheel, which guides a coating roller to contact a coating surface with uniform pressure when a gap keeping wheel rotates around an axis while being grounded on a covering surface, thereby keeping the coating thickness predetermined regardless of the proficiency of the worker, and even if the coating roller is used in an automatic coating system, paint of uniform thickness can be applied. In particular, when the coating roller is painting a step area on a covering surface, the guide roller is protruded by a support arm to an area expanded compared to the outer diameter of the coating roller, and is grounded on an engraved step area that does not contact the coating roller. By improving the structure to keep the coating roller and the covering surface parallel, a coating thickness deviation caused by inclination of the coating roller is prevented and the coating quality is improved.

[0007] Technical Solution In order to achieve the above-mentioned purpose, the coating thickness adjustment system using a gap maintaining wheel of the present invention is characterized in that it includes: a coating roller 10, which is configured to apply paint on the covering surface 1 while moving on the covering surface 1 by rotational motion; an axis 20, which passes through the center of the coating roller 10 and is configured to rotatably support the coating roller 10; and a gap maintaining wheel 30, which is arranged at both ends of the coating roller 10, has a center hole 31 formed in the center, is installed to rotate around the axis 20, is formed to be smaller in size than the outer diameter of the coating roller 10, and moves along the covering surface 1 while moving the coating roller 10 and the covering surface 1 at a predetermined interval to adjust the coating thickness.

[0008] The gap holding wheel 30 is arranged to contact the covering surface 1 in the area expanded by the gap expansion module 40 relative to the outer diameter of the coating roller 10, and the gap expansion module 40 includes: a support arm 43, the support arm 43 extends from the center of the gap holding wheel 30 toward the outer peripheral surface, and a guide roller 42 moving along the covering surface 1 is installed at its end; a center wire 45, one end of which is connected to the edge of the gap holding wheel 30 at the 6 o'clock direction when a pair of guide rollers 42 are grounded on the covering surface 1, and A counterweight 44 is installed at the other end, and the gap expansion module 40 is configured to maintain a tight state with the covering surface 1 at a predetermined angle through the gravity direction load of the counterweight 44 connected to the center wire 45, and is not affected by the rotation angle of the shaft 20. When the coating roller 10 passes through the step area P of the covering surface 1, the guide roller 42 is protruded by the support arm 43 to an area expanded compared to the outer diameter of the coating roller 10, and is configured to keep the coating roller 10 parallel to the covering surface 1 when the engraved step area P that is not in contact with the coating roller 10 is grounded.

[0009] The gap maintaining wheel 30 is divided into semicircular plates 30A and is detachably fastened by a fastening device 33. The gap maintaining wheel 30 is composed of specifications with different outer diameters. Therefore, the gap between the coating roller 10 and the covering surface 1 can be changed by changing the gap maintaining wheel 30, thereby adjusting the paint coating thickness.

[0010] The gap maintaining wheel 30 is formed of spiral plates 30B, and is configured such that the shaft 20 is inserted between the spiral plates 30B and engaged with the center hole 31 .

[0011] The gap maintaining wheel 30 is configured to be moved by a variable module 50 to adjust the gap between the coating roller 10 and the covering surface 1, and the variable module 50 includes: a center block 51, which is inserted and installed in the shaft 20 and has a track groove 51a formed on the outer peripheral surface; an inner wheel 52, which is formed with an inner wheel guide 52a that is transmitted in a straight line along the center block 51, and the gap maintaining wheel 30 is rotatably mounted on the outer peripheral surface; an adjusting bolt 53, one end of which is threadedly connected to the inner wheel 52 and the other end is rotatably constrained to the center block 51; a center wire 45, one end of which is connected to the edge of the inner wheel 52 at the 6 o'clock position and the other end is installed with a counterweight 44. When the adjusting bolt 53 is rotated, the inner wheel guide 52a of the inner wheel 52 moves along the track groove 51a of the center block 51, and the rotation center of the gap maintaining wheel 30 moves.

[0012] Beneficial Effects According to the above structure and function, the present invention provides a method of guiding a coating roller to contact a coating surface with uniform pressure when the gap maintaining wheel rotates around an axis in a state of grounding the coating surface, thereby keeping the coating thickness predetermined regardless of the proficiency of the worker, and even if the coating roller is applied to an automatic coating system, paint of uniform thickness can be applied. In particular, when the coating roller is coating a step area of ​​the covering surface, the guide roller is protruded by the support arm to an area expanded compared to the outer diameter of the coating roller, and is grounded in a state of the engraved step area that does not contact the coating roller. By improving the structure to keep the coating roller and the passive covering surface parallel, the coating thickness deviation caused by the inclination of the coating roller is prevented and the coating quality is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 1 is a diagram showing the overall structure of a coating thickness adjustment system using a gap maintaining wheel according to an embodiment of the present invention.

[0014] Figure 2 1 is a structural diagram showing a coating thickness adjustment system using a gap maintaining wheel according to an embodiment of the present invention, in which coating thickness varies according to the size of the gap maintaining wheel.

[0015] Figure 3 is a structural diagram showing a detachable gap expansion module of a coating thickness adjustment system using a gap maintaining wheel according to an embodiment of the present invention.

[0016] Figures 4 to 5 1 is a structural diagram showing a deformation example of a gap maintaining wheel of a coating thickness adjustment system using a gap maintaining wheel according to an embodiment of the present invention.

[0017] Figure 6 is a structural diagram showing a variable module of a coating thickness adjustment system using a gap maintaining wheel according to an embodiment of the present invention. DETAILED DESCRIPTION

[0018] Hereinafter, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. When describing the present invention, if a person skilled in the art considers that the related well-known functions may unnecessarily obscure the main points of the present invention, the detailed description thereof will be omitted.

[0019] Figure 1 2 is a diagram showing the overall structure of a coating thickness adjustment system using a gap retaining wheel according to an embodiment of the present invention, Figure 2 is a structural diagram showing a coating thickness adjustment system using a gap maintaining wheel according to an embodiment of the present invention, in which the coating thickness changes according to the size of the gap maintaining wheel. Figure 3 is a structural diagram showing a detachable gap expansion module of a coating thickness adjustment system using a gap maintaining wheel according to an embodiment of the present invention, Figures 4 to 52 is a structural diagram showing an example of a deformation of a gap maintaining wheel of a coating thickness adjustment system using a gap maintaining wheel according to an embodiment of the present invention, Figure 6 is a structural diagram showing a variable module of a coating thickness adjustment system using a gap maintaining wheel according to an embodiment of the present invention.

[0020] The present invention relates to a coating thickness adjustment system using a gap retaining wheel, wherein the gap retaining wheel rotates around an axis without interference while grounding a covering surface, and at the same time guides a coating roller to contact the coating surface with uniform pressure, so that the coating thickness is maintained at a predetermined level. Even if the coating roller is applied to an automatic coating system, paint of uniform thickness can be applied. In particular, when the coating roller is coating a step area on the covering surface, the guide roller is protruded by a support arm to an area expanded compared to the outer diameter of the coating roller, and is grounded to an engraved step area that is not in contact with the coating roller. By improving the structure to keep the coating roller and the passive covering surface parallel, a coating thickness deviation caused by the inclination of the coating roller is prevented and the coating quality is improved. The system includes a coating roller 10, an axis 20, and a gap retaining wheel 30 as main structures.

[0021] The coating roller 10 according to the present invention is arranged to apply paint on a coating surface 1 while moving along the coating surface 1 by a rotational motion.

[0022] The coating roller 10 has a hole perforated at the center thereof so as to insert a shaft 20 described later, and has hair formed on the outer peripheral surface thereof.

[0023] Thus, the coating roller 10 rotates about the axis 20 and moves on the coating surface 1 and applies the paint.

[0024] Meanwhile, the coating roller 10 is applied to unmanned coating equipment or used as a manual coating roller.

[0025] In addition, the shaft 20 according to the present invention is provided to penetrate and be inserted into the center of the coating roller 10 to rotatably support the coating roller 10 .

[0026] The shaft 20 may be applied to an automatic painting system in which both ends are rotatably supported on a bracket, or to a manual painting roller for painting by connecting a handle to the shaft.

[0027] In addition, the gap maintaining wheels 30 according to the present invention are provided at both ends of the coating roller 10 , a center hole 31 is formed at the center, and are installed to rotate around the shaft 20 .

[0028] Furthermore, the gap maintaining wheel 30 is formed to be smaller than the outer diameter of the coating roller 10 , and moves along the coating surface 1 while moving the coating roller 10 and the coating surface 1 at a predetermined interval to adjust the coating thickness.

[0029] That is, Figure 1As shown in a, when the coating roller 10 is pressed against the covering surface 1, the gap maintaining wheel 30 rotates around the axis 20 while contacting the covering surface 1 with a uniform pressure, so as to keep the coating thickness predetermined without being affected by the operator's proficiency. In particular, even when the coating roller 10 is applied to an automatic coating system, it has the advantage of applying paint with a uniform thickness.

[0030] on the other hand, Figure 2 a shows a state where a thinner coating thickness is formed by applying a gap retaining wheel 30 having a larger diameter, Figure 2 b shows a state where a thicker coating thickness is formed by applying a gap retaining wheel 30 having a smaller diameter. At this time, as described later, Figures 4 to 5 As shown, the gap maintaining wheel 30 is prepared according to specifications and is arranged to be replaceable.

[0031] exist Figure 3 In the embodiment, the gap maintaining wheel 30 is arranged to be in contact with the coating surface 1 in the area expanded by the gap expansion module 40 with respect to the outer diameter of the coating roller 10 .

[0032] The gap expansion module 40 includes: a support arm 43, which extends from the center of the gap maintaining wheel 30 toward the outer circumference and has a guide roller 42 installed at its end to move along the covering surface 1; a detachable center wire 45, when a pair of guide rollers 42 are grounded on the covering surface 1, one end of the center wire is connected to the edge of the gap maintaining wheel 30 at the 6 o'clock direction, and a counterweight 44 is installed at the other end.

[0033] Meanwhile, the support arm 43 may be detachably installed in the support hole 41 formed in the gap maintaining wheel 30 .

[0034] Furthermore, the gap expansion module 40 is configured to maintain a close state with the cover surface 1 at a predetermined angle by a gravity direction load of a weight 44 connected to the center wire 45 , without being affected by a rotation angle of the shaft 20 .

[0035] Therefore, when the coating roller 10 passes through the step area P of the covering surface 1, the guide roller 42 is protruded by the support arm 43 to an area expanded compared to the outer diameter of the coating roller 10, and is configured to keep the coating roller 10 parallel to the covering surface 1 when the engraved step area P that is not in contact with the coating roller 10 is grounded, thereby preventing the coating thickness deviation caused by the tilt of the coating roller 10 and improving the coating quality.

[0036] exist Figure 4In the embodiment, the gap retaining wheel 30 is divided into a semicircular plate 30A and is detachably fastened by a fastening device 33. At this time, the fastening device 33 may be formed by a bolt, a hook, a hook groove, and a magnet, or may be configured such that one end is connected by a bridge 32.

[0037] Furthermore, the gap retaining wheel 30 is formed of different specifications of outer diameters, so that the coating thickness can be adjusted by changing the gap between the coating roller 10 and the coating surface 1, so that anyone on site can easily replace the gap retaining wheel 30.

[0038] exist Figure 5 In the embodiment, the gap maintaining wheel 30 is formed of a spiral plate 30B. That is, the thickness maintaining wheel 30 is spirally formed into a plate having a predetermined thickness, and the shaft 20 is inserted between the spiral plates 30B and engaged with the center hole 31.

[0039] At this time, the spiral plate 30B extends over 360° and is formed to have an overlapping portion, and the outer peripheral surface of the spiral plate 30B forms a seismic source in a 360° direction through the overlapping portion, thereby preventing cloud interference during rotation.

[0040] exist Figure 6 In the embodiment, the gap maintaining wheel 30 is arranged to be moved by the variable module 50 to adjust the gap between the coating roller 10 and the covering surface 1.

[0041] The variable module 50 includes: a center block 51, which is inserted and installed in the shaft 20 and has a track groove 51a formed on the outer circumference; an inner wheel 52, which is formed as an inner wheel guide 52a that is transmitted in a straight line along the center block 51, and has a gap retaining wheel 30 rotatably installed on the outer circumference; an adjusting bolt 53, one end of which is threadedly connected to the inner wheel 52 and the other end is rotatably constrained to the center block 51; a center wire 45, one end of which is connected to the edge of the inner wheel 52 at the 6 o'clock position and the other end of which is installed with a counterweight 44.

[0042] That is, the inner wheel 52 is not affected by the rotation angle of the shaft 20 but is affected by the tensile load in the gravity direction of the counterweight 44 and remains stationary at a predetermined angle, thereby generating a retaining force that allows the inner wheel guide 52 a to form a predetermined angle with the cover surface 1 .

[0043] In addition, when the adjusting bolt 53 is rotated, the rotation center of the gap maintaining wheel 30 moves as the inner wheel guide 52a of the inner wheel 52 moves along the track groove 51a of the center block 51, so that a predetermined gap is spaced between the coating roller 10 and the covering surface 1, thereby adjusting the coating thickness.

[0044] Figure 6 a shows that the center of the inner wheel 52 is positioned to coincide with the center of the shaft 20, and the coating thickness is formed to be relatively thin. Figure 6b shows a state where the center of the inner wheel 52 is moved to a position eccentric to the center of the shaft 20 and the coating thickness is formed to be relatively thick.

[0045] In this way, the gap maintaining wheel 30 can be fine-tuned by a simple operation of rotating the adjusting bolt 53, so that the coating thickness can be quickly and accurately controlled on site.

[0046] At the same time, by displaying scales at the positions corresponding to the inner wheel guide 52a and the center block 51, the positions of the gap retaining wheels 30 arranged on both sides of the coating roller 10 can be set to the same, or the gap retaining wheels 30 can be set to a desired inclination angle to change the setting to suit the site conditions.

[0047] As mentioned above, in the detailed description of the present invention, the most preferred embodiment of the present invention has been described, but various modifications can be made without departing from the technical scope of the present invention. Therefore, the protection scope of the present invention should not be limited to the above-mentioned embodiment, but should recognize the protection scope of the technology within the scope of the patent claims described later and the equivalent technical means of these technologies.

Claims

1. A coating thickness adjustment system using a gap retaining wheel, characterized in that: include: a coating roller (10) configured to apply paint on the coating surface (1) while moving on the coating surface (1) by a rotational motion; a shaft (20) passing through the center of the coating roller (10) and configured to rotatably support the coating roller (10); and The gap retaining wheel (30) is arranged at both ends of the coating roller (10), has a center hole (31) formed in the center, is installed to rotate around the axis (20), is formed to be smaller than the outer diameter of the coating roller (10), and moves along the coating surface (1) while moving the coating roller (10) and the coating surface (1) at a predetermined interval to adjust the coating thickness.

2. The coating thickness adjustment system using a gap maintaining wheel according to claim 1, characterized in that: The gap retaining wheel (30) is arranged to contact the covering surface (1) in a region expanded by the gap expansion module (40) relative to the outer diameter of the coating roller (10), The gap expansion module 40 includes: A support arm (43), the support arm (43) extending from the center of the gap retaining wheel (30) toward the outer peripheral surface, and having a guide roller (42) mounted at an end thereof for movement along the covering surface (1); A center wire (45) is grounded on a pair of guide rollers (42) on the covering surface (1), one end of the center wire is connected to the edge of the gap retaining wheel (30) at the (6) o'clock direction, and a counterweight (44) is installed at the other end. The gap expansion module (40) is configured to maintain a tight state with the covering surface (1) at a predetermined angle through a gravity direction load of a counterweight (44) connected to the central wire (45), without being affected by the rotation angle of the shaft (20). When the coating roller (10) passes through the step area (P) of the coating surface (1), the guide roller (42) is protruded by the support arm (43) to an area expanded compared to the outer diameter of the coating roller (10), and is arranged to keep the coating roller (10) parallel to the coating surface (1) in a state where the engraved step area (P) that is not in contact with the coating roller (10) is grounded.

3. The coating thickness adjustment system using a gap maintaining wheel according to claim 1, characterized in that: The gap retaining wheel (30) is divided into semicircular plates (30A) and is detachably fastened by a fastening device (33). The gap retaining wheel (30) is composed of different specifications of outer diameters, so the gap between the coating roller (10) and the covering surface (1) can be changed by changing the gap retaining wheel (30), thereby adjusting the paint coating thickness.

4. The coating thickness adjustment system using a gap maintaining wheel according to claim 1, characterized in that: The gap retaining wheel (30) is formed of spiral plates (30B) and is configured such that the shaft (20) is inserted between the spiral plates (30B) and engages with the center hole (31).

5. The coating thickness adjustment system using a gap maintaining wheel according to claim 1, characterized in that: The gap maintaining wheel (30) is arranged to be moved by a variable module (50) to adjust the gap between the coating roller (10) and the covering surface (1), The variable module (50) comprises: a center block (51) which is inserted and mounted in the shaft (20) and has a track groove (51a) formed on its outer peripheral surface; The inner wheel (52) is formed with an inner wheel guide (52a) for linear transmission along the center block (51), and a gap retaining wheel (30) is rotatably mounted on the outer peripheral surface; an adjusting bolt (53) having one end threadedly connected to the inner wheel (52) and the other end rotatably constrained to the center block (51); A central wire (45) has one end connected to the edge of the inner wheel (52) at 6 o'clock, and a counterweight (44) is installed at the other end. When the adjusting bolt (53) is rotated, the inner wheel guide (52a) of the inner wheel (52) moves along the track groove (51a) of the center block (51), and the rotation center of the gap retaining wheel (30) moves.

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