JP2014213228A - Painting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a painting apparatus capable of properly carrying out the painting work of a work piece.SOLUTION: A painting apparatus 10 has a painting unit 12 for painting a work piece W carried by a carrying device 11, and a painting booth 13 in which painting work is carried out by the painting unit 12. The painting unit 12 has a painting tank 21 for storing a paint, a painting pump 22 for pumping out the pain from the painting tank 21, a blowing device 23 for blowing the paint pumped out by the painting pump 22 to the workpiece W, a collection pan 24 for collecting a surplus of the paint blown out from the blowing device 23 at a lower part then the workpiece W, and a carriage 25 on which the painting tank 21, the painting pump 22, the blowing device 23, and the collection pan 24 are mounted. In the painting both 13, a painting space N1 in which the painting unit 12 executing the painting of the workpiece W is installed, and a standby space N2 in which the painting unit 12 is kept waiting, are set.

Description

  The present invention relates to a painting facility.

  When industrializing a building such as a house, an operation of painting a building member such as an outer wall surface material is performed in a painting facility of a factory. As a painting facility, there is a painting facility having a spraying unit that sprays paint onto a workpiece as a painting target installed at a predetermined position, and a recovery unit that collects paint sprayed from the spraying device. For example, Patent Document 1 discloses a configuration in which the blowing unit moves up and down with the driving of the reciprocating machine, and a plurality of collection units are embedded under the floor. In this configuration, a baffle that captures the paint blown from the spraying part is provided, and the paint captured by the baffle is collected in a collecting part disposed below the baffle. Moreover, each collection | recovery part is installed so that a movement is possible, By selecting the collection | recovery part which collects a coating material from a baffle, it becomes possible to collect a coating material according to a color in each collection | recovery part.

JP 2003-144994 A

  However, in the painting process at the factory, the type of paint, such as the color used to paint the workpiece, may be changed. At that time, the paint will not mix before and after the paint change, such as washing the sprayed part with water. It is necessary to. In this case, with the existing technology, there is a disadvantage that the work burden when changing the type of painting is large.

  This invention is made | formed in view of the said situation, and makes it a main objective to provide the coating equipment which can perform the coating operation | work of a workpiece | work suitably.

  Hereinafter, means and the like effective for solving the above-described problems will be described while showing functions and effects as necessary.

  A painting facility according to a first aspect of the present invention is a painting facility provided with a painting unit for painting a workpiece to be painted, and the painting unit includes a paint tank in which paint is placed, and paint from the paint tank. A paint pump that pumps out the paint, a spraying device that sprays the paint pumped out by the paint pump onto the workpiece, and a collection tray that collects an excess of the paint sprayed from the spraying device below the workpiece And a carriage on which the paint tank, the paint pump, the spraying device, and the collection tray are mounted.

  According to the first invention, since the painting unit can be moved by the carriage, it is easy to replace the paint tank for the painting unit and to paint the workpiece by another painting unit. For this reason, unlike the configuration in which the coating unit cannot be moved, it is not necessary to perform a cleaning operation such as a paint pump or a spraying device when the paint used for painting the workpiece is changed to another paint. Thereby, the work burden at the time of changing the coating material used for coating can be reduced. In addition, since the collection unit is included in the painting unit, the paint can be reused in one painting unit. Therefore, the work of painting the workpiece can be suitably performed.

  In a second invention, in the first invention, the coating unit has a collection passage for returning the paint collected in the collection dish to the paint tank.

  According to the second aspect of the invention, since the paint is returned to the paint tank even if the operator does not move the paint in the collection tray to the paint tank, the labor for reusing the paint can be saved. Can do. In addition, by providing the recovery passage in accordance with the positional relationship between the recovery tray and the paint tank, the degree of freedom regarding the installation position of the recovery tray and the paint tank in the coating unit can be increased.

  In a third invention, in the second invention, the collection passage has a height difference between the collection dish side and the paint tank side, and the paint is moved from the collection dish to the paint tank by its own weight. It is something to be made.

  According to the third invention, since the paint is returned from the collection tray to the paint tank without using a driving means such as a pump, the labor for reusing the paint is saved and further energy saving is achieved. Can be realized.

  In addition, it is preferable that the height position of the said collection | recovery channel | path is gradually low toward the part which returns a coating material to the said coating material tank from the part into which the coating material of the said collection tray flows.

  In a fourth invention, in any one of the first to third inventions, the coating unit coats the workpiece in a conveyance path of a conveyance device that conveys the workpiece. It has a plurality of conveyance parts arranged along the conveyance path of a work, and it is installed between the adjoining conveyance parts, and is applied to the work by the painting unit arranged in a predetermined painting space. Is implemented.

  According to the fourth invention, for the purpose of industrialization, in a configuration in which a large number of workpieces conveyed by the conveying device are continuously coated, the conveying units are separated from each other in accordance with the coating space, so that the coating unit is painted. Can be easily installed in space. Thereby, the replacement | exchange operation | work of a coating unit can be made easy about a coating space.

  According to a fifth invention, in the fourth invention, the spraying device has a spraying part for spraying paint, and in the coating unit, the spraying part is provided above the collection dish, and the recovery unit A dish and the paint tank are provided side by side on the carriage, and the carriage is disposed in the painting space, so that the workpiece conveyed by the conveyor device is the blowout section, the collection dish, The paint tank is disposed at a position that does not overlap vertically with the workpiece.

  According to the fifth aspect of the present invention, the installation of the painting unit in the painting space aligns the blowout part and the collection tray with respect to the workpiece conveyance path, so the painting unit is replaced with another painting unit. Even in this case, it is not necessary to adjust the position of the spraying device or the collection tray. Therefore, it is possible to reduce the work burden when replacing the painting unit. Moreover, since the paint tank is arranged side by side with respect to the workpiece being conveyed, the paint tank can be replaced or the paint can be replenished while the painting unit is installed in the painting space. Thereby, the efficiency of the painting work can be increased.

  According to a sixth invention, in the fourth or fifth invention, there is provided a guide portion for guiding the carriage to the painting space, and the guide portion extends in a direction intersecting the transport path, and the transport path The position of the carriage is restricted from being shifted from the painting space in the direction in which the carriage extends.

  According to the sixth aspect, the operation of installing the coating unit in the painting space can be facilitated. Moreover, it can avoid that a coating precision falls because the coating unit is not installed in the appropriate position.

  In a seventh invention, in any one of the fourth to sixth inventions, the transfer device has an exterior wall surface material for buildings as the workpiece, the finishing surface thereof facing upward, and the longitudinal direction of the exterior wall surface material in the longitudinal direction. The workpiece is conveyed in the conveying direction, and the spraying device sprays the paint from above on the finished surface of the outer wall surface material, and in the direction in which the conveying path extends, The separation distance between the conveyance units adjacent to each other with the painting space interposed therebetween is such a size that can be transferred from one of the conveyance units to the other.

  According to the seventh aspect of the invention, a large number of outer wall surface materials can be suitably coated when industrializing a building.

  In an eighth invention according to any one of the fourth to seventh inventions, the conveying path by the conveying device passes through a painting booth where the workpiece is painted, and the outer periphery of the painting booth. Is provided with a work entrance into which the work transported by the transport device enters and a work exit through which the work exits. In addition to the paint space, the paint booth includes the paint unit. A waiting space is included for waiting.

  According to the eighth invention, since the painting space is set in the painting booth, the painting booth can restrict the excess of the paint blown out from the spraying device from being diffused over a wide range. Moreover, since a standby space is set in the painting booth, it is not necessary to take the painting unit out of the painting booth when the painting unit is exchanged for the painting space. Accordingly, the outside of the painting booth can be prevented from being stained with paint, and the operator does not have to enter or leave the painting booth when replacing the painting unit. That is, the painting unit replacement operation can be suitably performed.

  In a ninth invention, in any one of the fourth to eighth inventions, a plurality of the coating units are provided in accordance with the type of paint for coating the workpiece.

  According to the ninth aspect, since different paints are prepared for each painting unit, the paint used for painting the workpiece can be changed by an easy operation of replacing the painting unit with another painting unit.

Outline plan view of painting booth The perspective view which shows the structure of a conveying apparatus and a coating unit. Side view of painting unit

  Hereinafter, an embodiment embodying the present invention will be described with reference to the drawings. In the present embodiment, the painting equipment of the present invention is constructed in a factory that manufactures building members and the like. FIG. 1 is a schematic plan view of the painting booth 13, FIG. 2 is a perspective view showing configurations of the transport device 11 and the painting unit 12, and FIG. 3 is a side view of the painting unit 12. In FIG. 2, illustration of the paint pump 22, the collection tray 24, the tray stand 55, and the like is omitted, and only one of the plurality of outlets 51 is illustrated.

  As shown in FIGS. 1 and 2, the coating facility 10 is provided for a transport device 11 that transports a workpiece W as a coating target. The painting facility 10 includes a painting unit 12 that performs painting of the workpiece W in the conveyance path of the workpiece W in the conveyance device 11, and a painting booth 13 that performs painting work by the painting unit 12.

  The conveyance device 11 is a belt conveyor installed on the floor, for example, and can convey the workpiece W in the horizontal direction while keeping the upper surface of the workpiece W in a horizontal state. The transport apparatus 11 includes a plurality of transport units 11a arranged along the transport direction. The separation distance between the adjacent conveyance units 11a is such that the workpiece W can be transferred from the conveyance unit 11a on the upstream side to the conveyance unit 11a on the downstream side. For example, it is smaller than 1/2 of the length dimension of the workpiece W in the transport direction. In this case, the workpiece W being transported moves between the transporting portions 11a by being placed over the adjacent transporting portions 11a.

  The work W is an outer wall surface material constituting the outer wall of a building such as a house. The outer wall surface material as the workpiece W is formed in a rectangular shape by an exterior material such as a ceramic siding board, and is transported in the transport device 11 in a direction in which the longitudinal direction is the transport direction. The workpiece W may be a building member different from the outer wall surface material. Moreover, the workpiece | work W can also be called a to-be-coated object.

  The painting unit 12 is installed in a painting space N1 where the workpiece W can be painted. The painting space N1 is a position that overlaps the conveyance path of the conveyance device 11, and the painting unit 12 installed in the painting space N1 is disposed between the adjacent conveyance units 11a. In this case, the separation distance between the conveyance portions 11a adjacent to each other with the painting space N1 interposed therebetween is slightly larger than the width dimension of the painting unit 12 in the conveyance direction. In addition, in the conveyance path | route of the conveying apparatus 11, the range which passes the coating space N1 at least is linear.

  The painting booth 13 is installed in the factory, and is a work hut having a substantially rectangular shape in plan view. The conveying path of the conveying device 11 passes through the painting booth 13, and the painting space N <b> 1 of the painting unit 12 is set in the painting booth 13. The painting booth 13 has a partition panel 16 that divides the internal space, and a ceiling panel (not shown) that forms a ceiling surface. The partition panel 16 and the ceiling panel are arranged on the outer periphery of the painting booth 13. It is formed and corresponds to an enclosure surrounding the interior space of the painting booth 13. The partition panel 16 is separated from the wall and ceiling of the factory, and the painting booth 13 is provided independently inside the factory.

  In the partition panel 16, transport ports 17 a and 17 b through which the work W passes are provided in portions overlapping the transport path. Of the transfer ports 17 a and 17 b, the transfer port 17 a is a carry-in port for carrying the workpiece W into the coating booth 13 and corresponds to the work port. The transfer port 17b is a carry-out port for carrying the workpiece W out of the coating booth 13, and corresponds to the workpiece outlet. In the coating booth 13, the transport path of the transport device 11 is linear, and one of the pair of facing portions 16 a facing each other in the partition panel 16 is provided with a transport port 17 a on the carry-in side, and the other A carry-out side transport port 17b is provided.

  The partition panel 16 is provided with an entrance 18 through which an operator enters and exits the painting booth 13. The partition panel 16 has a pair of facing portions 16b different from the pair of facing portions 16a, and the doorway 18 is provided in one of the facing portions 16b. The entrance / exit 18 is disposed at a position overlapping the coating space N1 in the direction in which the pair of facing portions 16b are arranged. Placed in position. In this case, the entrance / exit 18 and the painting space N1 are separated from both of the pair of facing portions 16a.

  The coating unit 12 includes a paint tank 21 that stores paint, a paint pump 22 that pumps paint from the paint tank 21, and a spraying device 23 that sprays the paint pumped by the paint pump 22 toward the workpiece W. A recovery tray 24 for recovering excess paint blown from the spraying device 23 below the workpiece W, and a carriage on which the paint tank 21, the paint pump 22, the spraying device 23, and the recovery tray 24 are mounted. 25. In the configuration in which the spraying device 23 sprays the paint, there is a concern that the mist-like paint may spread over a wide range. However, in the painting booth 13, the paint is diffused by the partition panel 16 and the ceiling panel. Be blocked.

  The carriage 25 has a rectangular base plate 31, wheels 32 attached to the lower surface of the base plate 31, and a handle 33 extending upward from the base plate 31. The carriage 25 has four wheels, and the four wheels 32 are arranged at corners of the base plate 31, respectively. In the carriage 25, the longitudinal direction of the base plate 31 is the traveling direction, and a handle 33 is disposed on one end side of the base plate 31 in the traveling direction. The operator can move the painting unit 12 to a position different from the painting space N1 by moving the carriage 25. In addition, the number of wheels 32 of the carriage 25 may be three or less, or may be five or more.

  The paint tank 21 is, for example, a drum can or a canister, and is placed on the base plate 31. The paint tank 21 is detachably fixed to the base plate 31 with a temporary fixing bracket or the like. When the paint in the paint tank 21 runs out, the operator releases another paint to release another paint. The tank 21 can be replaced.

  Inside the painting booth 13, in addition to the painting space N1, a waiting space N2 for setting the painting unit 12 on standby is set. Further, inside the painting booth 13, a tank storage place N <b> 3 in which the paint tank 21 before use and the used paint tank 21 are placed is installed. In the painting booth 13, the standby space N <b> 2 and the tank storage place N <b> 3 are disposed between the facing portion 16 b where the entrance 18 is located and the transport device 11, and are arranged along the transport direction of the transport device 11.

  In the transport direction of the transport device 11, the entrance / exit 18 (painting space N1) is disposed between the standby space N2 and the tank storage area N3, and the operator can set the work space N4 between the entrance / exit 18 and the painting space N1. Utilizing this, it is possible to perform the work of replacing the paint tank 21 with the paint unit 12 and the work of moving the paint unit 12 to the paint space N1 or the standby space N2. In this case, the work space N4 is disposed between the standby space N2 and the tank storage area N3.

  The standby space N2 is sized and shaped to allow a plurality of coating units 12 to stand by side by side, and the tank storage N3 can store a plurality of paint tanks 21 side by side. It has a size and shape.

  In the painting booth 13, a plurality of painting units 12 are used for each type of paint (color, etc.). For each coating unit 12, a dedicated paint is set. For example, when the workpiece W is painted white, the white coating unit 12 is installed in the painting space N1, and other colors for brown and black are used. The painting unit 12 is made to wait in the standby space N2. For this reason, the color used for the painting of the workpiece | work W can be changed by performing the easy operation | work of replacing the painting unit 12 installed in the painting space N1 with another painting unit 12. FIG. On the other hand, when one painting unit 12 is used for painting of a plurality of colors, it is necessary to wash the paint pump 22, the spraying device 23, the collection tray 24, etc. with water or the like. Compared with the case where twelve replacement operations are performed, the work load is increased.

  As shown in FIGS. 2 and 3, the painting booth 13 has a guide rail 35 for guiding the painting unit 12 from the working space N4 side to the painting space N1, and the painting unit 12 is opposite to the working space N4 from the painting space N1. A stopper 36 is provided for preventing movement to the side. Both the guide rail 35 and the stopper 36 protrude upward from the floor portion 37 of the painting booth 13, and the movement of the painting unit 12 is restricted when the wheels 32 come into contact with each other. The guide rail 35 and the stopper 36 constitute a guide portion that guides the painting unit 12 to the painting space N1.

  The guide rail 35 extends along the direction in which the painting space N1 and the work space N4 are aligned (the direction orthogonal to the transport direction of the transport device 11), and the stopper 36 is located on the back side of the paint space N1 (the work space N4 and the work space N4). Is arranged on the opposite side). In this case, with respect to the painting space N1, the painting unit 12 can be taken in and out from the work space N4 side, and the operator touches the stopper 36 with the wheel 32 on the side opposite to the handle 33. By moving the painting unit 12 along the guide rail 35, the painting unit 12 can be installed in the painting space N1.

  A pair of guide rails 35 are provided side by side along the transport direction of the transport device 11, and the separation distance between the pair of guide rails 35 is such that the wheels 32 aligned along the short side of the base plate 31 are aligned with the guide rails 35. It is large enough to get in between. For this reason, when the painting unit 12 is moved between the painting space N <b> 1 and the work space N <b> 4, each wheel 32 of the painting unit 12 moves between the pair of guide rails 35. The stopper 36 is in a state of being stretched between the rear end portions (end portions opposite to the work space N4) of the guide rail 35.

  In the pair of guide rails 35, the tip end portion on the work space N <b> 4 side is bent outward so that the wheels 32 of the painting unit 12 are easily guided between the pair of guide rails 35. .

  The coating unit 12 includes a stirring device 41 that stirs the paint in the paint tank 21, a suction part 42 that sucks the paint in the paint tank 21, a suction pipe 43 that connects the suction part 42 and the paint pump 22, and a paint pump 22 and a spray pipe 44 for connecting the spray device 23. In the paint unit, a transport passage for transporting paint from the paint tank 21 to the spraying device 23 is formed by the suction portion 42, the suction pipe 43, the paint pump 22 and the spraying pipe 44. The suction pipe 43 and the blowing pipe 44 are formed by flexible pipes such as a flexible vinyl hose.

  The paint tank 21 placed on the carriage 25 is covered with a lid portion 46. The stirring device 41 and the suction portion 42 are attached to the lid portion 46, and when the paint tank 21 is replaced, an easy operation is performed in which the lid portion 46 is replaced with the new paint tank 21 together with the stirring device 41 and the suction portion 42. Thus, the stirring device 41 and the suction part 42 are attached to the new paint tank 21.

  The spraying device 23 includes a plurality of spraying parts 51 that spray paint, a branching part 52 that is connected to each spraying part 51 by branching the spraying pipe 44, and a support frame that supports each spraying part 51. 53. The blowing unit 51 is arranged at a position higher than the conveyance path of the workpiece W in the conveyance device 11, and paints the upper surface of the workpiece W by blowing the coating material downward. The plurality of blowing parts 51 are arranged side by side along the traveling direction of the carriage 25 at a predetermined interval, and are arranged on the entire upper surface of the workpiece W in a direction (short direction of the workpiece W) perpendicular to the conveying direction of the conveying device 11. The paint can be sprayed.

  Note that the blowing device 51 may have only one blowing unit 51. However, in this case, it is preferable that the area where the paint can be sprayed by one blowing part 51 is a size including the whole of the work W in the short direction.

  The support frame 53 includes a column portion 53a extending upward from the base plate 31 and an arm portion 53b extending sideward from the column portion 53a. The arm portion 53b is orthogonal to the transport direction and extends in parallel (horizontal direction) with the upper surface of the workpiece W, and each blowing portion 51 is fixed to the arm portion 53b. In addition to the blowing part 51, the branch part 52, the spraying pipe 44, and the paint pump 22 are fixed to the support frame 53, respectively.

  In the carriage 25, the paint tank 21 is disposed closer to the handle 33 than the spraying device 23. In this case, the paint tank 21 and the spraying device 23 are arranged side by side along the traveling direction of the carriage 25 in the coating unit 12. Further, in this case, in a state where the coating unit 12 is installed in the coating space N1, the blowing unit 51 of the spraying device 23 is disposed above the work W, and the paint pump 22 is located in the work space N4 more than the transport path of the work W. Will be placed on the side. For this reason, it is possible to install the coating unit 12 in the painting space N1 regardless of the height dimension of the coating tank 21, and furthermore, even if the painting unit 12 is installed in the painting space N1, the coating tank 21 is provided. The replacement work can be performed.

  The paint pump 22 is arranged side by side in the paint tank 21 in a direction orthogonal to the traveling direction of the carriage 25. For this reason, the paint pump 22 is disposed closer to the work space N4 than the workpiece W conveyance path in the state where the paint unit 12 is installed in the paint space N1. Even when the unit 12 is installed in the painting space N1, the maintenance work of the paint pump 22 can be performed. In FIG. 3, the paint pump 22 is merely illustrated between the paint tank 21 and the spraying device 23 for the sake of convenience in order to illustrate the paint pump 22.

  In the coating unit 12, the collection tray 24 is provided below each outlet 51. The collection tray 24 is installed at a height position that is disposed below the conveyance path of the workpiece W in a state where the coating unit 12 is installed in the coating space N1. The collection tray 24 is installed on the base plate 31 of the carriage 25 via the tray base 55, and has a size and shape that covers substantially the entire area where the paint is ejected from each blowing portion 51 from below. Yes. The tray base 55 is a box placed on the base plate 31, and the collection tray 24 is placed on the upper surface of the tray base 55. The tray base 55 is fixed to the base plate 31 and the collection tray 24 is fixed to the tray base 55 by bolts or welding.

  The painting unit 12 has a collection pipe 56 for returning the paint collected by the collection tray 24 to the paint tank 21. The collection pipe 56 is formed of a flexible pipe having flexibility, and connects the collection tray 24 and the paint tank 21. The collection pipe 56 has a height difference between the collection tray 24 side and the paint tank 21 side. In this case, in the collection pipe 56, the portion made the collection tray 24 is arranged at a higher position than the portion connected to the paint tank 21, and the portion from the collection tray 24 side is directed to the portion on the paint tank 21 side. The height position gradually decreases. In this case, the paint collected on the collection tray 24 flows into the paint tank 21 through the collection pipe 56 due to its own weight.

  The recovery pipe 56 is connected to the bottom of the recovery tray 24 and is connected to the side of the paint tank 21. The collection pipe 56 constitutes a collection passage, and the internal space of the collection pipe 56 corresponds to the collection passage. Further, a connection hole to which a recovery pipe 56 is connected is formed at the bottom of the recovery tray 24, and the bottom surface of the recovery tray 24 is inclined so that the paint flows toward the connection hole.

  The bottom surface of the collection tray 24 is disposed at a position higher than the liquid level of the paint in the paint tank 21. In the coating unit 12, the height dimension H1 of the collection tray 24 relative to the upper surface of the base plate 31 is larger than the height dimension H2 of the liquid level of the paint tank 21 relative to the upper surface of the base plate 31 (H1> H2). . In addition, the height position of the liquid level of the paint tank 21 is the height position of the liquid level when the paint tank 21 is fully filled with the paint. Thereby, it can be avoided that the paint in the paint tank 21 flows backward to the collection tray 24 through the collection pipe 56.

  According to the embodiment described in detail above, the following excellent effects can be obtained.

  Since the painting unit 12 can be moved by the carriage 25, it is easy to replace the coating tank 21 for the painting unit 12 or to replace the painting unit 12 installed in the painting space N1 with another painting unit 12. It has become. For this reason, unlike the configuration in which the coating unit 12 cannot be moved, when the paint used for painting the workpiece W is changed to another paint, it is necessary to perform cleaning work such as the paint pump 22 and the spraying device 23. Absent. Thereby, the work burden at the time of changing the coating material used for coating can be reduced. In addition, since the painting unit 12 includes the collection tray 24, the paint can be reused in one painting unit 12. Therefore, the work of painting the workpiece W can be suitably performed.

  In the painting facility 10, since a plurality of painting units 12 are prepared according to different paints, the work W can be easily performed by replacing the painting unit 12 installed in the painting space N1 with another painting unit 12. The paint used for painting can be changed. For this reason, the trouble of washing the coating unit 12 with water or the like before and after the change of the paint used for painting can be saved.

  In the painting unit 12, the paint collected in the collection tray 24 is returned to the paint tank 21 via the collection pipe 56, so that the operator does not perform an operation of moving the paint in the collection tray 24 to the paint tank 21. However, since the paint is returned to the paint tank 21, it is possible to save time and effort for reusing the paint. Moreover, by providing the collection pipe 56 in accordance with the positional relationship between the collection tray 24 and the paint tank 21, it is possible to increase the degree of freedom regarding the installation position of the collection tray 24 and the paint tank 21 in the coating unit 12.

  In the collection pipe 56, the paint flows down from the collection dish 24 toward the paint tank 21 due to the difference in height between the collection dish 24 side and the paint tank 21 side. Energy saving can be realized.

  Since the coating by the coating unit 12 is performed on the workpiece W being transported by the transporting device 11, it is possible to efficiently mass-produce building members such as outer wall materials used for industrialized houses. Here, in the conveyance apparatus 11, since the conveyance parts 11a are spaced apart according to the painting space N1, the coating unit 12 can be easily installed in the painting space N1. Thereby, the exchange operation | work of the coating unit 12 can be made easy about the coating space N1. In addition, since the separation distance between the adjacent conveyance units 11a is set to a size that allows the workpiece W to be transferred between the conveyance units 11a, the coating space N1 is disposed at a position overlapping the conveyance path of the workpiece W. Even if it is the structure which is, the conveyance of the workpiece | work W by the conveying apparatus 11 can be performed suitably.

  By installing the painting unit 12 in the painting space N1, the blowing unit 51 and the collection tray 24 of the painting unit 12 are aligned with the workpiece W being conveyed. When replacing the coating unit 12, it is not necessary to adjust the position of the spraying device 23 or the collection tray 24. Therefore, it is possible to reduce the work burden when the painting unit 12 is replaced. Moreover, since the paint tank 21 is arranged side by side with respect to the workpiece W being conveyed, the paint tank 21 can be replaced or the paint can be replenished while the painting unit 12 is installed in the painting space N1. Thereby, the efficiency of the painting work can be increased.

  Since the painting unit 12 is guided to the painting space N1 by the guide rail 35 and the stopper 36, the operation of installing the painting unit 12 in the painting space N1 can be facilitated. Further, since the guide rail 35 and the stopper 36 prevent the position of the painting unit 12 from being shifted with respect to the painting space N1, the painting accuracy is attributed to the fact that the painting unit 12 is not installed at an appropriate position. Can be avoided.

  Since the painting space N1 is set in the painting booth 13, the painting booth 13 can prevent the paint blown from the spraying device 23 from diffusing in a wide range in the air. In addition, since the standby space N2 is set in the painting booth 13, there is no need to take the painting unit 12 out of the painting booth 13 when the painting unit 12 is replaced with the painting space N1. Therefore, the outside of the painting booth 13 can be prevented from being stained with paint, and the operator does not have to enter or leave the painting booth 13 when replacing the painting unit 12. That is, the replacement work of the painting unit 12 can be suitably performed.

[Other Embodiments]
The present invention is not limited to the description of the above embodiment, and may be implemented as follows, for example.

  (1) In the above embodiment, the recovery pipe 56 is connected to the paint tank 21. However, if the paint flows into the paint tank 21 from the recovery pipe 56, the recovery pipe 56 is not connected to the paint tank 21. Also good. For example, the recovery pipe 56 is connected to the lid portion 46, and the paint flows into the paint tank 21 from the recovery pipe 56 through a connection hole formed in the lid portion 46. In this configuration, when the paint tank 21 is replaced with another paint tank 21 in the paint unit 12, the recovery pipe 56 is replaced by replacing the lid 46 with the other paint tank 21. For this reason, the trouble at the time of replacing the paint tank 21 can be saved by the work of attaching / detaching the recovery pipe 56 to the paint tank 21.

  (2) In the above embodiment, the paint tank 21 is disposed closer to the work space N4 than the transport path of the workpiece W in a state where the paint unit 12 is installed in the paint space N1, but the paint tank 21 is transported. It may be arranged on the opposite side of the work space N4 across the route. For example, in the cart 25, the paint tank 21 is disposed on the opposite side of the handle 33 with the collection tray 24 and the spraying device 23 interposed therebetween.

  (3) In the above embodiment, the collection tray 24 and the paint tank 21 are arranged side by side, but the paint tank 21 may be disposed below the collection tray 24. In this case, for example, by forming holes communicating with each other on the bottom surface portion of the collection tray 24 and the top surface portion of the paint tank 21, it is possible to realize a configuration in which the paint collected by the collection tray 24 flows into the paint tank 21. .

  (4) In the above embodiment, the paint in the paint tank 21 is prevented from flowing back to the collection tray 24 through the collection pipe 56, but the paint in the paint tank 21 flows back to the collection dish 24 through the collection pipe 56. May be. As a configuration in which the paint flows back, a configuration in which the end on the collection tray 24 side is lower than the end on the coating tank 21 side in the collection pipe 56, or the bottom surface of the collection tray 24 is the liquid in the coating tank 21. Although the structure (H1 <H2) etc. which are arrange | positioned in the position lower than a surface are mentioned, Even if it is these structures, when the storage amount of the coating material in the collection tray 24 increases, or the storage of the coating material in the coating material tank 21 When the amount decreases, the paint flows from the collection tray 24 into the paint tank 21 through the collection pipe 56.

  (5) In the above embodiment, the paint in the collection tray 24 returns to the paint tank 21 by its own weight. However, the paint in the collection tray 24 is forcibly sent to the paint tank 21 by driving means such as a collection pump. It is good also as a structure to be made. For example, a recovery pump is connected to the recovery pipe 56 and the recovery pump is fixed to the support frame 53.

  (6) In the above embodiment, the collection passage for returning the paint in the collection tray 24 to the paint tank 21 is formed by the collection pipe 56, but the passage forming member that forms the collection path may not be a pipe. For example, a long groove member opened upward is used as a passage forming member. In this configuration, the paint returns from the collection tray 24 to the paint tank 21 by flowing in the groove of the groove member.

  (7) As a conveying device, in addition to the conveying device 11 that conveys a workpiece W placed on a belt conveyor, a device that conveys the workpiece W in a horizontal state while the workpiece W is suspended, An apparatus for conveying in the direction can be used.

  (8) In the above embodiment, the guide rail 35 and the stopper 36 protrude upward from the floor portion 37. However, the guide rail 35 and the stopper 36 are in contact with a part of the carriage 25 (for example, the wheel 32 and the base plate 31). If it has the side surface to do, it does not need to protrude upwards from the floor part 37. FIG. For example, the guide rail 35 and the stopper 36 are formed by a recess recessed downward from the floor surface of the floor 37.

  (9) In the above embodiment, the coating by the coating unit 12 is performed on the workpiece W transported by the transport device 11, but the workpiece W to be coated by the coating unit 12 is transported by the transport device 11. It does not have to be. For example, it is set as the structure by which the coating by the coating unit 12 is performed for the workpiece | work W fixed to the predetermined position. Even in this case, it is possible to set the painting space N1 with respect to the fixed position of the workpiece W. Selecting the coating unit 12 to be installed in the painting space N1 selects the coating material used for painting the workpiece W. Will do.

  DESCRIPTION OF SYMBOLS 10 ... Coating equipment, 11 ... Conveying device, 11a ... Conveying part, 12 ... Coating unit which comprises coating equipment, 13 ... Painting booth which comprises coating equipment, 17a ... Conveying port as a workpiece | work inlet, 17b ... As a workpiece | work exit Transport port, 21 ... Paint tank, 22 ... Paint pump, 23 ... Blowing device, 24 ... Collection tray, 25 ... Carriage, 35 ... Guide rail constituting guide part, 36 ... Stopper constituting guide part, 51 ... Blowout 56, recovery piping constituting the recovery passage, N1 ... painting space, N2 ... standby space, W ... work.

Claims (9)

It is a painting facility equipped with a painting unit that paints the workpiece to be painted,
The coating unit is
A paint tank containing paint,
A paint pump for pumping paint from the paint tank;
A spraying device that sprays the paint pumped out by the paint pump onto the workpiece;
A collection tray for collecting a surplus of the paint blown out from the spraying device below the workpiece;
A carriage on which the paint tank, the paint pump, the spraying device and the collection tray are mounted;
The painting equipment characterized by having.   2. The painting facility according to claim 1, wherein the painting unit has a collection passage for returning the paint collected in the collection tray to the paint tank.   3. The recovery passage has a height difference between the recovery tray side and the paint tank side, and moves the paint from the recovery tray to the paint tank by its own weight. Coating equipment as described in. The coating unit is for coating the work in a transport path of a transport device that transports the work.
The said conveying apparatus has the some conveyance part arranged along the conveyance path | route of the said workpiece | work, The said coating unit arrange | positioned in the predetermined coating space by being installed between the said adjacent conveyance parts The painting equipment according to any one of claims 1 to 3, wherein the workpiece is painted by the above. The spraying device has a blowout part that blows out the paint,
In the coating unit, the outlet is provided above the collection tray, the collection tray and the paint tank are provided side by side on the carriage, and the carriage is disposed in the painting space. Thus, the work being transported by the transport device can pass between the blow-out portion and the collection tray, and the paint tank is disposed at a position that does not overlap with the work. The painting equipment according to claim 4 characterized by things. A guide unit for guiding the cart to the painting space;
The guide portion extends in a direction intersecting the transport path, and restricts the position of the carriage from being shifted from the coating space in the direction in which the transport path extends. Item 6. A painting facility according to item 4 or 5. The conveying device conveys the outer wall surface material for buildings as the work in a state where the finishing surface is directed upward and the longitudinal direction of the outer wall surface material is the conveying direction of the workpiece,
The spraying device sprays paint from above on the finished surface of the outer wall surface material,
In the direction in which the conveyance path extends, the separation distance between the conveyance units adjacent to each other across the coating space is such that the workpiece can be transferred from one of the conveyance units to the other. The coating equipment according to any one of claims 4 to 6. The transport path by the transport device passes through the painting booth where the work is painted.
The outer periphery of the coating booth is provided with a workpiece inlet into which the workpiece conveyed by the conveying device enters, and a workpiece outlet from which the workpiece leaves,
The painting facility according to any one of claims 4 to 7, wherein the painting booth includes a waiting space for waiting the painting unit in addition to the painting space. .   The coating equipment according to any one of claims 4 to 8, wherein a plurality of the coating units are provided in accordance with a type of paint for coating the workpiece.

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