JP5777017B1 - Pressurized water spray gun and temporary equipment cleaning device using the same - Google Patents

Abstract

A rotating nozzle head can be reduced in size and weight, and it is not necessary to ensure high rigidity, so that the cost can be reduced and the variation in cleaning in a cleaning portion of temporary equipment can be reduced. SOLUTION: A housing supported by a cleaning robot via a turning mechanism and capable of turning around a turning axis X, and a housing that can turn around two rotation axes Y parallel to the turning axis X. Two rod-shaped nozzle heads that are supported in parallel with each other and that have a flow path of pressurized water formed therein, a jet nozzle that is formed in the longitudinal direction of the rod-shaped nozzle head and communicates with the flow path, and the two rod-shaped nozzle heads are rotated. A rotation / water supply mechanism for driving and supplying pressurized water to the flow paths of the two rod-shaped nozzle heads, and a fixing means for fixing the rotation of the housing within the swivel angle range, and aligning the two rod-shaped nozzle heads in a straight line The total length when arranged in a shape is equivalent to the width of the largest temporary equipment among the types of temporary equipment. [Selection] Figure 4

Description

  The present invention relates to a pressurized water ejection gun and a temporary equipment cleaning apparatus using the same, and more particularly, temporary equipment for cleaning and removing deposits adhering to the temporary equipment by spraying pressurized water ejected from the pressurized water ejection gun to the temporary equipment. The present invention relates to a cleaning device.

  When constructing a construction, a scaffold is assembled according to the height of the construction using temporary construction equipment for construction scaffolding such as a pipe building frame, a plate-like scaffolding board, and a pipe bracing. The temporary equipment constituting the scaffold is attached with deposits such as concrete at the time of placing concrete and paint at the time of painting the outer wall. Therefore, after dismantling the scaffold after completion of the work, it is necessary to perform a cleaning work to remove the deposits in preparation for the next work.

  There are two cleaning methods: scraping off deposits with a rotating brush of wire, shot blasting, etc., and cleaning the deposits by spraying pressurized water sprayed from a pressurized water spray gun onto temporary equipment. Has problems such as noise and dust.

  For this reason, in recent years, a pressurized water ejection gun has been adopted in the temporary equipment cleaning device, and examples of the pressurized water ejection gun include a pressurized water ejection gun having the structure of Patent Document 1 and Patent Document 2.

  In Patent Document 1, a central portion of a disk-shaped rotating nozzle head is attached to the lower end of a rotating shaft into which pressurized water is fed so as to be orthogonal to the rotating shaft, and the pressurized water is radially emitted from the central portion of the rotating nozzle head into the rotating nozzle head. There is disclosed a pressurized water spray gun having a structure in which a plurality of spray nozzles are formed on the outer peripheral side lower surface of a rotary nozzle head through a formed flow path.

  Patent Document 2 discloses a structure in which a rotary nozzle head having four water supply pipes radially attached to the lower end of a rotary shaft into which pressurized water is fed and a jet nozzle is formed at the tip of each water supply pipe. Cancer is disclosed.

  However, these conventional pressurized water ejection guns have a problem that the rotating nozzle head is enlarged because the ejection nozzles are arranged on the outer peripheral side of the disk-shaped nozzle head and the tips of the four water supply pipes. Furthermore, the conventional pressurized water ejection gun needs to ensure high rigidity in the nozzle head so that it can withstand the reaction force of the pressurized water injection, and the pressurized water ejection gun is heavy, and there are many machining parts and high cost. was there.

Japanese Patent Application Laid-Open No. 09-4228 Japanese Patent Laid-Open No. 10-140829

  Therefore, the present applicant has proposed a pressurized water ejection gun having a structure different from the conventional one in order to solve the problems of the conventional pressurized water ejection gun (Japanese Patent Application No. 2014-114524).

  This pressurized water spray gun is attached to the lower end of a hollow rotating shaft for feeding pressurized water with a central portion of one long rod-shaped nozzle head equivalent to the width dimension of the temporary equipment so as to be orthogonal to the hollow rotating shaft. From the central part of the rod-shaped nozzle head, it passes through a flow path formed in the rod-shaped nozzle head, and is ejected from a plurality of ejection nozzles formed on the lower surface in the longitudinal direction of the rod-shaped nozzle head.

  According to the pressurized water ejection gun proposed by the applicant, a structure in which a plurality of ejection nozzles are arranged on the outer peripheral side of a conventional disk-shaped rotary nozzle head, or ejection at the tip of a rotary nozzle head consisting of four radial water supply pipes Compared to the structure in which the nozzles are arranged, the nozzle head can be reduced in size and weight. Furthermore, by forming a plurality of ejection nozzles in the longitudinal direction of the rod-shaped nozzle head and rotating the rod-shaped nozzle head, the cleaning trajectories ejected from the respective ejection nozzles overlap each other to form a dense state. Thereby, since the ejection area density of the pressurized water ejected to the temporary equipment can be increased, the cleaning ability can be improved.

  However, when the pressurized water was ejected from the rotating rod-shaped nozzle head to clean the temporary equipment (for example, the cloth board), the cleaning power at the center part in the width direction of the cloth board and the both ends in the width direction varied. That is, a further improvement was found in that the detergency was lower at both ends in the width direction of the cloth board than at the center in the width direction.

  The present invention has been made in view of such circumstances, and since it is not necessary to reduce the size and weight of the rotating nozzle head and to ensure high rigidity, it is possible to reduce the cost and in the cleaning part of the temporary equipment. It is an object of the present invention to provide a pressurized water spray gun capable of reducing the variation in cleaning and a temporary equipment cleaning device using the same.

  In order to achieve the above object, a pressurized water ejection gun according to the present invention is supported by a support portion via a turning mechanism in a pressurized water ejection gun for washing temporary equipment for a pipe-like or plate-like construction scaffold with pressurized water, A device main body that can be swung around a swivel axis in a predetermined swivel angle range, and is supported in parallel by the device main body so as to be rotatable around a plurality of rotating shaft cores parallel to the swivel shaft core. A plurality of rod-shaped nozzle heads having flow paths formed therein, a plurality of nozzle-shaped nozzle heads formed in the longitudinal direction of the rod-shaped nozzle heads, communicating with the flow paths, and rotating the plurality of rod-shaped nozzle heads, A rotation / water supply mechanism for supplying the pressurized water to the flow paths of the plurality of rod-like nozzle heads; and a fixing means for fixing the turning of the apparatus main body within the turning angle range. The total length when the linearly arranged de, characterized in that is equal to the width of the maximum width of the temporary equipment of the type of the temporary equipment.

  The present inventor has eagerly investigated the cause of variations in the cleaning power between the central portion in the width direction and the both ends in the width direction of temporary equipment (for example, cloth board) when cleaning is performed by ejecting pressurized water from a rotating rod-shaped nozzle head. investigated.

  As a result, it was found that the rotational speed of the jet nozzle near both ends of the rod-shaped nozzle head was significantly higher than the speed of the jet nozzle near the center, which was a cause of variations in cleaning power.

  According to the pressurized water jet gun of the present invention, a plurality of rod-shaped nozzle heads which are arranged in parallel with the apparatus main body and rotate are provided, instead of providing a single long rod-shaped nozzle head on the apparatus main body, The total length when the rod-shaped nozzle heads of the book were linearly arranged was configured to be equal to the width of the maximum temporary equipment among the types of temporary equipment.

  In this way, by providing a plurality of rod-shaped nozzle heads, the difference in rotational peripheral speed between the ejection nozzle near the rotation center of the rod-shaped nozzle head and the ejection nozzles near both ends of the single long nozzle nozzle head is reduced. Since it is smaller than the rotational peripheral speed difference, the variation in cleaning power can be reduced.

  Furthermore, according to the pressurized water jet gun of the present invention, the apparatus main body is supported by the support portion so as to be rotatable within a predetermined rotation angle range around the rotation axis, and the rotation of the apparatus main body is fixed within the rotation angle range. Means were provided.

  As a result, when cleaning temporary equipment that is narrower than the maximum width of temporary equipment, the apparatus main body can be swiveled to incline the array of a plurality of rod-shaped nozzle heads with respect to the width direction of the temporary equipment. . Accordingly, since a plurality of rod-shaped nozzle heads do not protrude from the temporary equipment even for a narrow temporary equipment, the pressurized water can be used for washing without waste.

  The pressurized water spray gun of the present invention preferably has two rod-shaped nozzle heads.

  For example, cloth plates of temporary equipment are generally 240 mm and 500 mm in width, and 700 mm is the maximum width even for special temporary equipment (for example, cloth board). Therefore, if two rod-shaped nozzle heads are provided, the effect of reducing the variation in cleaning can be sufficiently exerted, and if two rod-shaped nozzle heads are used, the manufacturing cost can be increased compared to one rod-shaped nozzle head. Not so big.

  In the pressurized water spray gun of the present invention, it is preferable that the main body of the apparatus is capable of turning in a turning angle range of 90 degrees around the turning axis.

  If the apparatus main body is turned 90 degrees, a plurality of rod-like nozzle heads can be arranged in parallel so as to be orthogonal to the width direction of the temporary equipment, and the maximum width of the temporary equipment can be accommodated.

  In the pressurized water ejection gun of the present invention, the distance between adjacent rotary shaft cores of a plurality of rod-shaped nozzle heads is made shorter than ½ of the total length of the two rod-shaped nozzle heads rotating around the rotary shaft core. Thus, it is preferable that the plurality of rod-shaped nozzle heads are configured to partially overlap each other, and the plurality of rod-shaped nozzle heads are rotated with a rotational phase shifted by one rotation driving unit.

  Thereby, since a plurality of rod-shaped nozzle heads can be partially overlapped so that the rotations of the adjacent rod-shaped nozzle heads do not collide, the variation in cleaning power can be further reduced. That is, at the overlapping portion of the rod-shaped nozzle heads, there is an ejection nozzle on the end side of one rod-shaped nozzle head (large rotational peripheral speed) and an ejection nozzle on the center side of the other rod-shaped nozzle head (small rotational circumferential speed). Since cleaning is performed while offsetting the rotational peripheral speed difference, the variation in cleaning power can be further reduced.

  In the pressurized water ejection gun of the present invention, it is preferable that pressurized water is ejected from the ejection nozzle at a pressure of 100 to 200 MPa. This is because pressurized water is effective at a pressure of 100 to 200 MPa for cleaning the temporary equipment.

  In the pressurized water ejection gun of the present invention, the rod-shaped nozzle head is preferably rotated at a rotational speed of 500 to 2000 rpm. Since the rod-shaped nozzle head rotates at a high speed of 500 to 2000 rpm, if the rod-shaped nozzle head is long, the difference in rotational peripheral speed between the ejection nozzle near the center and the ejection nozzle near both ends increases, resulting in variations in cleaning. Because it occurs.

  In order to achieve the above object, a temporary equipment washing apparatus according to the present invention is a temporary equipment washing apparatus for washing temporary equipment for a pipe-like or plate-like construction scaffold with pressurized water, and carrying in / out the temporary equipment. A pair of transfer lines arranged in parallel between the carry-out stage and the cleaning stage for cleaning the temporary equipment, and a transfer means for shuttle-transferring the temporary equipment between the carry-in / out stage and the cleaning stage; A holding jig that is provided in each of the pair of transfer lines and holds the temporary equipment in a detachable state in a vertical state on the transfer means, and is disposed opposite to both sides of the pair of transfer lines of the cleaning stage, The pressurized water cleaning gun according to any one of claims 1 to 6, wherein the pressurized water cleaning gun is sprayed and cleaned along the surface of the vertical temporary equipment. That.

  According to the temporary equipment cleaning apparatus of the present invention, the temporary equipment A held by the holding jig in the loading / unloading stage of one of the pair of transport lines is transported to the cleaning stage, and a pair of opposingly arranged Clean both surfaces (front and back) of temporary equipment A simultaneously with a pressurized water spray gun. On the other hand, while the temporary equipment A is being cleaned, the temporary equipment B to be cleaned next can be set on the loading / unloading stage. Thereby, efficient cleaning can be performed.

  Moreover, since the pressurized water ejection gun according to any one of claims 1 to 6 of the present invention is used as a pair of opposed pressurized water ejection guns, the variation in cleaning is reduced in the cleaning portion of the temporary equipment. be able to.

  In the temporary equipment cleaning apparatus according to the present invention, it is preferable that the support portion for rotatably supporting the apparatus main body of the pressurized water spray gun is a pair of cleaning robots of an articulated arm type or an orthogonal coordinate system type.

  In this way, by supporting the apparatus main body on a pair of articulated arm type or Cartesian coordinate type cleaning robots in a freely swingable manner, not only can a plurality of rod-shaped nozzle heads be inclined with respect to the width direction of the temporary equipment. Since the pressurized water spray gun can be changed to various postures, finer cleaning is possible.

  The temporary equipment cleaning apparatus of the present invention includes a cleaning chamber having an inlet through which the temporary equipment passes and surrounding the cleaning stage, and the cleaning robots using pressurized water ejected from the pressurized water ejection gun of the pair of cleaning robots. And a control means for controlling at least the conveying means and the cleaning robot, and the control means is provided with holding treatments provided respectively for the pair of conveying lines. When one holding jig among the tools is on the cleaning stage, the conveying means is controlled so that the other holding jig is on the carry-in / out stage, and the surface of the temporary equipment conveyed to the cleaning stage It is preferable to control the pair of cleaning robots so as to simultaneously clean the back surface and the back surface.

  Here, “preventing the cleaning robots from colliding with each other” not only prevents the pressurized water from the pressurized water ejection gun of one cleaning robot from hitting the other cleaning robot, This includes the case where the protector is protected by a protector so that the cleaning robot is not damaged even if it hits.

  By providing the competing prevention means, it is possible to prevent so-called competing, in which the pressurized water ejected from the pressurized water ejection guns passes through the opening of the temporary equipment and hits the cleaning robot. Therefore, even if a pair of cleaning robots are arranged to face each other, the arm of the cleaning robot, the hose that supplies pressurized water, and the like are not damaged.

  In addition, since the pair of cleaning robots can be arranged to face each other by providing the competing prevention means, the cleaning chamber surrounding the cleaning stage can be made compact.

  Thereby, the temporary equipment washing | cleaning apparatus of this invention can improve a washing | cleaning efficiency remarkably irrespective of a compact apparatus structure.

  According to the pressurized water jet gun of the present invention, the rotating nozzle head can be reduced in size and weight, and it is not necessary to ensure high rigidity, so that the cost can be reduced and the variation in cleaning in the cleaning portion of the temporary equipment can be reduced. it can.

  Further, according to the temporary equipment cleaning device of the present invention, since the pressurized water jet gun of the present invention is provided, the same effect as described above can be obtained, and the cleaning efficiency is remarkably improved regardless of the compact device configuration. be able to.

Illustration of temporary equipment FIG. 3 is a perspective view of the entire configuration of the temporary equipment cleaning device according to the present invention, in which the cleaning chamber is partially cut away so that the inside can be seen. Schematic view of the temporary equipment cleaning device of the present invention as seen from above Overall configuration diagram of pressurized water ejection gun of the present invention Explanatory drawing of the turning mechanism which rotates the housing of a pressurized-water jet gun with respect to the washing robot, and the fixing means which fixes turning Explanatory drawing explaining the effect | action by a turning mechanism Comparison diagram of one rod-shaped nozzle head and two rod-shaped nozzle heads Figure of a modified example of a pressurized water spray gun in which two nozzle heads are partially overlapped Illustration of continuous cleaning of temporary equipment with temporary equipment cleaning equipment

  A preferred embodiment of a pressurized water jet gun according to the present invention and a temporary equipment cleaning apparatus using the same will be described in detail below with reference to the accompanying drawings.

  <Temporary equipment>

  First, referring to FIG. 1, a temporary equipment to be cleaned with the pressurized water jet gun of the present invention will be described.

  FIG. 1 is a perspective view showing a frame scaffold 100 used as a scaffold for a construction worker at a construction site or the like. FIG. 1 shows the assembly of the second layer of the frame scaffold 100.

  The assembly procedure of the frame scaffold 100 at the construction site is as follows. First, the base jack 108 is arranged at a predetermined position as the first layer (frame scaffold first floor portion), and then the vertical frame material of the building frame 102 formed of pipe material. The lower end of 102a is inserted into the base jack 108 and installed so that the building frame 102 is perpendicular to the ground contact surface.

  Furthermore, crossing braces (brace) 106 are attached so as to connect adjacent building frames 102, and a plurality of installed building frames 102 are reinforced so that each of the building frames 102 does not fall down. Finally, a plate-like temporary scaffold (hereinafter referred to as “fabric board 104”). The assembly of one unit of the frame scaffolding is completed by hooking and holding the grips 104a installed at the four corners of the cloth plate 104 to the horizontal member 102b above the building frame 102. This process is performed for all the first layers of the framework scaffold 100.

  Next, the assembly of the second layer of the frame scaffold 100 is performed by placing the lower end of the vertical member 102a of the second frame 102 with respect to the upper end of the vertical member 102a of the first frame 102 of the frame scaffold 100. This is done by plugging in. Thereafter, as in the assembly of the first layer of the frame scaffold 100, attachment of the cross bracing 106 and attachment of the cloth board 104 are performed.

  Thereafter, each layer is constructed in accordance with the scale of the third and fourth layers of the framework scaffold. Although not shown, there are various other components such as stairs, handrail pillars, and handrails as other components of the framework scaffold.

  In this way, the temporary equipment 14 is mainly composed of a pipe-shaped building frame 102 in which a plurality of frame scaffolds 100 are installed in parallel perpendicularly to the ground, and crossed bars connected so that adjacent building frames 102 do not fall down. (Brace) 106 and a flat cloth board 104 installed horizontally as a scaffolding on the top of the building frame.

  Since these temporary equipments 14 are contaminated by deposits such as paint and concrete due to the nature of construction work, it is necessary to efficiently wash the used temporary equipment 14 with a temporary equipment cleaning device.

  In particular, as can be seen from FIG. 1, the fabric board 104 serves as a working scaffold for the construction worker, so it is likely to be contaminated with deposits such as paint and concrete, and needs to be cleaned so that there is no variation in cleaning at the cleaning portion. is there.

  The dimensions of the cloth plate 104 are generally 240 mm and 500 mm in width, and even a special one has a maximum width of 700 mm. Four types of lengths of 1 m, 2 m, 3 m, and 4 m are common. Further, as the material of the cloth plate 104, iron and aluminum are generally used, but recently aluminum is often used from the viewpoint of weight reduction.

  <Overall configuration of temporary equipment cleaning device>

  FIG. 2 is a diagram showing the overall configuration of the temporary equipment cleaning apparatus 10, and is a perspective view in which the cleaning chamber 12 is partially cut away so that the inside can be seen. FIG. 3 is a schematic view of the temporary equipment cleaning device 10 as viewed from above.

  As shown in FIGS. 2 and 3, the temporary equipment cleaning apparatus 10 according to the embodiment of the present invention mainly shuttles the temporary equipment 14 that is an object to be cleaned between a carry-in / carry-out stage 16 and a cleaning stage 18. A pair of cleaning means 20 that conveys, a holding jig 22 that detachably holds the temporary equipment 14 in the vertical state on the conveying means 20, and a pressure water jet gun 24 that is disposed facing the cleaning stage 18. The robots 26 and 26, the cleaning chamber 12 surrounding the cleaning stage 18, the countering means 28 (see FIG. 3) for preventing the cleaning robots 26 and 26 from being in a competing state, and the loading / unloading stage 16. The handling robot 30 provided and the control means 32 (see FIG. 3) for controlling at least the transport means 20 and the cleaning and handling robots 26 and 30. It is made.

  2 and 3 show a shuttle type configuration in which the temporary equipment 14 is carried in and out at the same loading / unloading stage 16 and will be described below by taking the shuttle type as an example. A one-way type (not shown) in which a carry-in stage for carrying in 14 and a carry-out stage for carrying out temporary equipment 14 are arranged in different places, respectively.

  In this one-way type, the cleaning stage 18 is arranged at a position sandwiched between the carry-in stage and the carry-out stage, and each is connected by a conveying means 20. Here, that the cleaning stage 18 is disposed at a position sandwiched between the transport stage and the transport stage does not necessarily indicate only the position sandwiched geometrically, but the transport stage 20 and the transport stage 20 on the path of the transport unit 20. It is assumed that the entire arrangement is included.

  The pipe-shaped and flat-plate-shaped temporary equipment 14 cleaned by the temporary equipment cleaning apparatus 10 is generally made of aluminum for the purpose of reducing the weight as described above.

  In the present embodiment, an example in which a handling robot 30 capable of full automation is provided will be described, but a semi-automatic method in which handling is performed by human power may be used.

  In the transport unit 20, a pair of transport lines including a first transport line 34 and a second transport line 36 are arranged in parallel between the carry-in / carry-out stage 16 and the cleaning stage 18. A trolley conveyor system is preferred as the transport system for the transport line.

  It is preferable that the conveyance speed of the 1st conveyance line 34 and the 2nd conveyance line 36 is the range of 5-20 m / min.

  The dirty washing water ejected from the pressurized water jet gun 24 and washing the temporary equipment 14 falls onto the floor of the temporary equipment washing apparatus 10. Therefore, by using the trolley conveyor system, it is possible to suppress the failure of the drive unit of the transport unit 20 due to dirty cleaning water.

  The trolley conveyor system is located at the end position of the loading / unloading stage 16, the boundary position between the loading / unloading stage 16 and the cleaning stage 18, and the end position of the cleaning stage 18 as viewed from the transport direction in which the temporary equipment 14 is transported. Gate-type support columns 38, 38. The two transport rails 40 are fixed in parallel along the transport direction of the temporary equipment 14 below the upper beam 38A of the gate-shaped column 38. A plurality of (two in FIG. 2) trolleys 42, 42 that automatically travel on the rails are movably provided on the two transfer rails 40, 40. Further, a holding jig 22 for holding the temporary equipment 14 is suspended from the two trolleys 42, 42.

  In FIG. 2, the trolley 42 and the holding jig 22 are shown only on the transport rail 40 on the front side of the two transport rails 40, 40, and the illustration on the rear transport rail 40 is omitted. doing.

  In addition, two guide rails 44 and 44 are fixed in parallel along the conveying direction of the temporary equipment 14 on the upper side of the lower beam 38B of the gate-shaped column 38. The lower end portion of the holding jig 22 is slidably engaged with the guide rails 44 and 44. Accordingly, the upper end portion of the holding jig 22 is supported on the transport rail 40 via the two trolleys 42 and 42, and the lower end portion of the holding jig 22 is supported on the guide rail 44. Therefore, the temporary equipment 14 held by the holding jig 22 is maintained in the vertical state without being shaken even if pressurized water is sprayed from the pressurized water ejection gun 24 of the cleaning robot 26 in the cleaning stage 18. .

  Further, in the vicinity of the loading / unloading stage 16, a positioning conveyor 46 for positioning the temporary equipment 14 before cleaning with respect to the handling robot 30, a stacking lift 48 for stacking the temporary equipment 14 after cleaning, A discharging conveyor 50 (see FIG. 3) for discharging the stacked temporary equipment 14 after cleaning is disposed. As the handling robot 30, an articulated arm type or orthogonal coordinate system type industrial robot can be suitably employed.

  The holding jig 22 is formed in a frame shape by two bar-shaped members facing up and down and two bar-shaped members facing left and right. The holding jig 22 is provided with holding means (not shown) for holding the temporary equipment 14 in a detachable manner. The holding means is not particularly limited, but preferably employs a chuck mechanism for chucking (gripping) the temporary equipment 14 or a protrusion insertion mechanism for forming a plurality of protrusions to be inserted into the pipe holes of the pipe-like temporary equipment 14. Can do.

  The pair of cleaning robots 26, 26 are disposed opposite to both sides of the pair of transfer lines 34, 36 of the cleaning stage 18 (outside of the two transfer rails 40, 40 and the guide rails 44, 44). As the cleaning robot 26, an articulated arm type or Cartesian coordinate type industrial robot can be preferably used.

  The cleaning robot 26 supports the pressurized water jet gun 24 at the tip of the arm 26A. The pressurized water jet gun 24 is supplied with pressurized water from a water supply tank 52 through a pressure hose 54 by a pressurized water pump 51 (for example, an ultrahigh pressure plunger pump). Supplied (see FIG. 3). Then, the pair of cleaning robots 26, 26 are temporarily installed by spraying pressurized water onto the surface of the temporary equipment 14 while moving the pressurized water jet gun 24 along the surface of the temporary equipment 14 in the vertical state according to an instruction from the control means 32. Wash both sides of the equipment 14 at the same time.

  The cleaning chamber 12 has an inlet 12A (see FIG. 3) through which the temporary equipment 14 transported by the transport means 20 passes, and is formed in a box shape surrounding the cleaning stage 18, and the portions other than the inlet 12A are sealed. . Further, as shown in FIG. 3, in the vicinity of the cleaning chamber 12, a discharge pipe 74 and a discharge pump 76 for discharging the dirty cleaning water after cleaning the temporary equipment 14 to the outside of the temporary equipment cleaning apparatus 10. And a storage tank 78 is provided. As a result, the temporary cleaning equipment 14 is cleaned, and the dirty cleaning water dropped on the floor surface of the cleaning chamber 12 is stored in the storage tank 78.

  The competing prevention means 28 is configured by incorporating, in the control means 32, a movement trajectory program which is set so that the trajectories of the pair of pressurized water jet guns 24, 24 arranged opposite to each other along the surface of the temporary equipment 14 do not overlap. Is done.

  Here, “the moving loci do not overlap” includes not only the case where the movement loci of the pair of pressurized water ejection guns 24 and 24 are completely different, but also the case where the movement loci are the same and have a time shift. The temporal shift of the same movement trajectory means that one pressurized water ejection gun 24 of the pair of pressurized water ejection guns 24, 24 is delayed in time with respect to the other pressurized water ejection gun 24 to follow the same movement trajectory. Say. In any case, it is important to prevent competing between the pair of pressurized water jet guns 24, 24 by preventing the same place from being washed from both sides at the same time. It is because it will break by the force of pressurized water by competing.

  The movement trajectory program can be obtained by previously simulating with a computer movements that prevent the opposing cleaning robots 26 and 26 from matching each other in accordance with the shape of the temporary equipment 14 (for example, pipe shape, flat plate shape, etc.). it can.

  As a simulation method for preventing the above-described competing, the cleaning robot 26 is most effective in cleaning the temporary equipment 14 based on numerical data of the shape (for example, pipe shape, flat plate shape, etc.) and size of the temporary equipment 14. A typical movement trajectory of the pressurized water spray gun 24 is drawn by a computer.

  Next, among the drawn movement trajectories, the movement trajectory position where the opposing cleaning robots 26 and 26 meet each other is specified, and the cleaning robot 26, 26 can be changed so that the movement trajectory can be changed without deteriorating the cleaning speed and the cleaning effect. 26 operation sequence is changed.

  If the cleaning speed and the cleaning effect must be reduced by changing the operation sequence of the cleaning robot 26, a pressure-resistant protector (not shown) is provided at the companion portion of the cleaning robot 26. Protect.

  Although not particularly illustrated, another aspect of the competing prevention means 28 is configured by providing an ejection angle adjusting means (not shown) for adjusting the ejection angle of the pair of pressurized water ejection guns 24, 24 arranged opposite to each other. You may do it.

  As another aspect of the competing prevention means 28, a pair of pressure-resistant protectors (not shown) may be used to cover the cleaning robots 26 and 26 except for the pressurized water ejection gun 24. As a pressure-resistant protector, it is necessary not to inhibit the movement of the arm 26A of the cleaning robot 26, for example, like a bellows-shaped pressure-resistant cylindrical member.

  As the competing prevention means 28, it is necessary to provide at least one of the above movement trajectory program, the ejection angle adjusting means, and the pressure-resistant protector, and it is more preferable to provide all of them. By combining the movement trajectory program and the pressure resistant protector, as described above, the pressure resistant protector can be attached only to the portion of the cleaning robot 26 that complies with the movement trajectory program alone.

  Here, since the pressure-resistant protector cannot be attached to the nozzle head 56 (see FIG. 4) of the pressurized water ejection gun 24, it is highly desirable to incorporate an operation sequence in which the nozzle head 56 portions do not come together. .

  The handling robot 30 is provided with a rectangular gripping plate 80 (see FIG. 2) for detachably holding the temporary equipment 14 at the tip of the arm 30A. Then, the pre-cleaning temporary equipment 14 placed on the positioning conveyor 46 is gripped by the gripping disk 80 and attached to the holding jig 22 of the transport means 20, and the cleaned temporary equipment 14 is removed from the holding jig 22. Stack on the stacking lift 48.

  The gripping mechanism of the gripping disk 80 is not particularly limited as long as the temporary equipment 14 can be attached and detached, and a chuck method, a suction method, and the like can be suitably employed.

  The control unit 32 controls at least the transport unit 20, the cleaning robots 26 and 26, and the handling robot 30. In the case of the semi-automatic method, the control unit 32 controls at least the transport unit 20 and the cleaning robots 26 and 26.

  As shown in FIG. 3, the control means 32 includes a line control panel 32A for controlling the conveying means 20, an HD control panel 32B for controlling the handling robot 30, and one of the pair of cleaning robots 26, 26. The first RC control panel 32C for controlling the cleaning robot 26 and the second RC control panel 32D for controlling the other cleaning robot 26 are configured.

  In the present embodiment, the control means 32 is divided into four control panels, but may be one control panel or five or more control panels.

  The HD control panel 32 </ b> B is configured such that when one holding jig 22 is on the cleaning stage 18 among the holding jigs 22 provided on the pair of transfer lines 34 and 36, the other holding jig 22 is loaded / unloaded stage 16. The conveying means 20 is controlled as shown in FIG. The positioning conveyor 46, the stacking lift 48, and the discharge conveyor 50 may be controlled together by the HD control panel 32B, or another control panel may be provided.

  The first RC control panel 32C and the second RC control panel 32D incorporate a cleaning program so that both the front and back surfaces of the temporary equipment 14 conveyed to the cleaning stage 18 are simultaneously cleaned. A movement trajectory program is incorporated to avoid competing when both sides are cleaned simultaneously.

  Further, the rotation speed control of the pressurized water pump 51 for supplying pressurized water to the pressurized water ejection gun 24 and the pressurized water ejection gun 24 may be controlled together by the first RC control panel 32C and the second RC control panel 32D, and another control panel is provided. May be. In this case, two pressurized water pumps 51 are arranged so that the water supply amount control of the pressurized water pump 51 and the rotational speed control of the pressurized water ejection gun 24 can be controlled independently by the first RC control panel 32C and the second RC control panel 32D. More preferably.

  Thereby, for example, the upper surface of the cloth plate 104 which is the flat temporary equipment 14 is stained, but the lower surface is less stained. Therefore, when the scaffold board is cleaned in the vertical state by the temporary equipment cleaning device 10, the surface of the scaffold board needs to have a large cleaning power, but the back surface can be cleaned with a small cleaning power. Therefore, the pressurized water pump 51 and the pressurized water ejection gun 24 can be controlled independently by the first RC control panel 32C and the second RC control panel 32D, and fine cleaning can be performed.

  <Pressurized water spray gun>

  Next, the pressurized water ejection gun 24 according to the embodiment of the present invention supported by the cleaning robot 26 will be described.

  FIG. 4 is an overall configuration diagram of the pressurized water ejection gun 24.

  The pressurized water spray gun 24 is supported by a cleaning robot 26 (support) via a turning mechanism 55, and a housing 57 (apparatus body) that can turn around a turning axis X within a predetermined turning angle range, and a housing 57. A plurality of rod-shaped nozzle heads 56 that are rotatably supported in parallel around a plurality of rotating shaft cores Y parallel to the pivot axis X, and in which a flow path of pressurized water is formed, and the longitudinal length of the rod-shaped nozzle head 56 A plurality of jet nozzles 58 formed in the direction and communicating with the flow path and a plurality of rod-shaped nozzle heads 56 are driven to rotate, and a rotation / water supply mechanism 59 supplies pressurized water to the flow paths of the plurality of rod-shaped nozzle heads 56. And a fixing means 61 for fixing the turning of the housing 57 within the turning angle range, and the total length when the plurality of rod-like nozzle heads 56 are arranged in a straight line is the temporary equipment 14 (FIG. Among types of plate 104 illustrated) configured to be equal to the width W of the temporary gear 14 of maximum width.

  In this embodiment, the bracket 53 is interposed between the cleaning robot 26 and the turning mechanism 55, but may be omitted. Further, an example of two rod-shaped nozzle heads 56 formed in a long plate shape will be described as an example of the plurality of rod-shaped nozzle heads 56, but it is sufficient that there are two or more.

  Inside the rod-shaped nozzle head 56, a flow path (not shown) of pressurized water extends from the flow path inlet 63 at the center in the longitudinal direction to the longitudinal direction of the rod-shaped nozzle head 56 (from the flow path inlet 63 to the left and right in FIG. 4). It is formed. Further, a plurality of ejection nozzles 58, 58... Are provided on the lower surface of the rod-shaped nozzle head 56 in the longitudinal direction of the rod-shaped nozzle head 56 (from the flow path inlet 63 to the left and right in FIG. 4), and at a high pressure of 100 to 200 MPa. Pressurized water spouts out.

  In order to effectively wash the deposits such as paint and concrete adhering to the temporary equipment 14, pressurized water of 100 MPa or more is required. However, pressurized water exceeding 200 MPa may be damaged in the case of the temporary equipment 14 made of aluminum for weight reduction. The amount of pressurized water ejected from the pressurized water ejection gun 24 is in the range of 15 to 25 liters / minute, more preferably 20 liters / minute.

  In the present embodiment shown in FIG. 4, three ejection nozzles 58 are provided on the left and right sides of the flow path inlet 63, respectively, but the number is not limited. Moreover, although the ejection nozzles 58 provided at both end positions of the rod-shaped nozzle head 56 are illustrated as being tilted inward so that pressurized water can be ejected, the present invention is not limited to this example. .

  Next, the rotation / water supply mechanism 59 will be described.

  As shown in FIG. 4, a bearing 65 is fixed to a through hole (not shown) formed in the center of the upper surface of the housing 57, and a cylindrical motor support member 67 is fixed to the upper side of the bearing 65. A motor 66 (rotation drive means) is mounted on the motor support member 67. The motor rotation shaft 68 passes through the center of the motor support member 67 and is rotatably supported by the bearing 65, and the tip end portion of the motor rotation shaft 68 extends into the housing 57. Although an electric motor can be adopted as the motor 66, a pneumatic motor can be adopted by adopting a light rod-shaped nozzle head 56. The rod-shaped nozzle head 56 is lighter than a conventional nozzle head that is not rod-shaped (for example, disk-shaped) because of its simple structure.

  In addition, the pneumatic motor is lighter than the electric motor because it has a larger output / weight ratio than the electric motor. Therefore, by adopting the pneumatic motor and the rod-shaped nozzle head 56, the weight of the pressurized water ejection gun 24 can be reduced. As a result, the load on the cleaning robot 26 that supports the pressurized water jet gun 24 is reduced, so there is no need to use an expensive industrial robot with high output, and the pressurized water jet gun 24 can be moved at high speed and with high accuracy. It can be.

  Further, a pair of through holes (not shown) penetrating the upper surface and the lower surface of the housing 57 are formed at both ends in the longitudinal direction of the rectangular box-shaped housing 57, and pressurized water is rod-shaped into the pair of through holes. A pair of hollow rotary shafts 69 to be fed into the nozzle head 56 are arranged to penetrate each other. Of the hollow rotary shafts 69, the upper part of the housing 57 is rotatably supported by the upper fluid bearing 70, and the lower part of the housing 57 is rotatably supported by the lower fluid bearing 72. . In the present embodiment, an example of a fluid bearing suitable for high-speed rotation of the hollow rotating shaft 69 will be described, but the present invention is not limited to a fluid bearing.

  The lower end of each hollow rotary shaft 69 is connected to the above-described flow path inlet 63 via a flange hole (not shown) of a flange 73 fixed to the center of the upper surface of each rod-shaped nozzle head 56.

  On the other hand, the upper end of each hollow rotating shaft 69 is connected to the pressure hose 54 via a swivel joint 75, and pressurized water is supplied from the water supply tank 52 via the pressure hose 54 by the above-described pressurized water pump 51. The swivel joint 75 can prevent the pressure hose from being twisted or entangled when the housing 57 described later turns.

  Each hollow rotary shaft 69 is connected to the motor rotary shaft 68 via a power transmission mechanism (not shown) provided in the housing 57 (power transmission mechanism using gears, power transmission mechanism using pulleys and endless belts, etc.). Is done. Further, each hollow rotary shaft 69 is divided into an upper hollow rotary shaft 69A and a lower hollow rotary shaft 69B between the housing 57 and the upper fluid bearing 70, and the upper hollow rotary shaft 69A and the lower hollow rotary shaft 69B. Are connected by a rotary joint 77. Thus, when the motor 66 is driven to rotate, the lower hollow rotary shaft 69B rotates via the motor rotary shaft 68 and the power transmission mechanism, and the rod-shaped nozzle head 56 rotates at a high speed of 500 to 2000 rpm. On the other hand, the upper hollow rotary shaft 69A connected to the pressure hose 54 does not rotate because the rotation from the motor 66 is cut off by the rotary joint 77.

  In the present embodiment, the two rod-shaped nozzle heads 56 are rotated by one motor 66, but the motor 66 may be provided for each of the two rod-shaped nozzle heads 56.

  Next, the turning mechanism 55 of the housing 57 and the fixing means 61 for fixing the turning of the housing 57 within the turning angle range will be described.

  As shown in FIGS. 4 and 5, the motor 66 is held by the turning mechanism 55, and the turning mechanism 55 is supported by the cleaning robot 26 (support portion) via the bracket 53. In the present embodiment, the example of the cleaning robot 26 described above is described as the support unit, but the support unit is not limited to the cleaning robot 26.

  As shown in FIG. 5, in the turning mechanism 55, an inner cylinder 55 </ b> A that holds a motor 66 and an outer cylinder 55 </ b> B supported by the bracket 53 are fitted so as to be able to turn and slide. In addition, a bolt as the fixing means 61 is screwed into the outer cylinder 55B, and a plurality of insertion holes 55C into which the bolt tip portions are inserted are formed on the outer peripheral surface of the inner cylinder 55A. Thereby, by rotating the inner cylinder 55A with respect to the outer cylinder 55B, the housing 57 can be rotated via the motor 66 and the motor support member 67, and the housing by inserting the fixing means 61 into the insertion hole 55C. 57 turns can be fixed. Since the two rod-like nozzle heads 56 and 56 are also turned together with the turning of the housing 57, the inclination of the two rod-like nozzle heads 56 and 56 with respect to the width direction of the temporary equipment 14 can be changed.

  Thus, the total length L1 + L2 when the two rod-shaped nozzle heads 56, 56 are arranged in a straight line is set to be equal to the width W of the temporary equipment 14 having the maximum width among the types of the temporary equipment 14. If so, it is possible to cope with the cleaning of the temporary equipment 14 having a narrow width.

  In this embodiment, the turning mechanism 55 is attached to the motor 66, but the motor 66, the motor support member 67, and the turning mechanism 55 may be separated and independent.

  FIG. 6A is a diagram showing the arrangement direction of the two rod-shaped nozzle heads 56, 56 when cleaning the temporary device 14 having the maximum width, and the two rod-shaped nozzle heads 56, 56 are attached to the temporary device 14. They are arranged so as to be orthogonal to the longitudinal direction M.

  FIG. 6B is a diagram showing the arrangement direction of the two rod-shaped nozzle heads 56, 56 when the temporary device 14 having the minimum width is washed, and the two rod-shaped nozzle heads 56, 56 are attached to the temporary device 14. They are arranged so as to be parallel to the longitudinal direction M.

  Here, the symbol P in FIG. 6 indicates the turning center, and the symbol Q indicates the rotational center of the rod-shaped nozzle head 56. A dotted line indicates the outer circumference orbit when the two rod-like nozzle heads 56, 56 are rotated.

  In this way, by rotating the housing 57 with respect to the cleaning robot 26, the pressurized water ejected from the rod-shaped nozzle head 56 can be efficiently cleaned from the maximum width temporary equipment 14 to the minimum width temporary equipment 14 without waste. can do.

  In this case, by enabling the housing 57 to turn within a turning angle range θ of 90 degrees, the cleaning of the temporary equipment 14 having the maximum width shown in FIG. 6A to the cleaning of the temporary equipment 14 having the minimum width shown in FIG. Two rod-shaped nozzle heads 56, 56 can be arranged so as to correspond to the above.

  In addition, as shown in FIG. 5, the turning angle range θ of 90 degrees is swiveled and fixed by forming the insertion holes 55C at a turning angle interval of 18 °. It is possible to efficiently cope with the cleaning of the temporary equipment 14 having an intermediate width.

  The turning angle interval is not limited to 18 °, and can be set as appropriate according to the type of width of the temporary equipment 14. Further, the turning mechanism 55 is not limited to the inner cylinder 55A and the outer cylinder 55B described above, and other turning mechanisms may be used as long as they have similar functions. Further, the fixing means 61 is not limited to the above-described bolt, and other fixing means may be used as long as they have the same function.

  <Action of pressurized water spray gun>

  The pressurized water ejection gun 24 configured as described above does not rotate by providing one long rod-shaped nozzle head 56, but rotates by arranging two rod-shaped nozzle heads 56, 56 in parallel. The total length L1 + L2 when the rod-like nozzle heads 56 and 56 are linearly arranged is configured to be equal to the width of the temporary equipment 14 having the maximum width among the types of the temporary equipment 14.

  FIG. 7A shows a cleaning trajectory of pressurized water ejected from the rod-shaped nozzle head 56 when the temporary device 14 is cleaned with one long rod-shaped nozzle head 56 equivalent to the width W of the temporary device 14.

  FIG. 7B is a cleaning trajectory of pressurized water ejected from the two rod-shaped nozzle heads 56, 56 when the temporary equipment 14 is cleaned by the two rod-shaped nozzle heads 56, 56. Pressurized water jet gun 24) in the form.

  7A and 7B, the number (eight) of the ejection nozzles 58 of the rod-shaped nozzle head 56, the rotational speed of the rod-shaped nozzle head 56, and the width W of the temporary equipment 14 are the same. Further, the position of the pressurized water ejection gun 24 is fixed, and the temporary equipment 14 is cleaned by moving in the arrow direction N.

  As shown in FIG. 7B, by providing the two rod-shaped nozzle heads 56, 56, the rotational peripheral speed difference between the ejection nozzle 58 near the rotation center Q of the rod-shaped nozzle head 56 and the ejection nozzle 58 near both ends. Is smaller than the rotational peripheral speed difference between the ejection nozzle 58 near the rotation center Q and the ejection nozzles 58 near both ends of one long rod-like nozzle head 56 in FIG. Thereby, the pressurized water ejection gun 24 according to the embodiment of the present invention can reduce the variation between the cleaning power at the central portion and the cleaning power at both ends in the width direction of the temporary equipment 14.

In particular, the rod-shaped nozzle head 56 rotates at a high speed of 500 to 2000 rpm like the pressurized water ejection gun 24 that cleans the temporary equipment 14. Therefore, if the rod-shaped nozzle head 56 is long, both the ejection nozzle 58 near the center and both ends are disposed. The difference in rotational peripheral speed with the jet nozzle 58 in the vicinity of the portion becomes large, and the cleaning tends to vary.
<Modified example of pressurized water spray gun>

  FIG. 8 shows a modified example of the pressurized water ejection gun 24. The distance D between the rotational axis centers of the two rod-shaped nozzle heads 56, 56 is set to 1 of the total length L1 + L2 of the two rod-shaped nozzle heads 56, 56. / 2 [that is, (L1 + L2) / 2] shorter than each other, the two rod-shaped nozzle heads 56 and 56 are configured to partially overlap each other. The motor 66 is rotated by shifting the rotation phase.

Thereby, since the two rod-shaped nozzle heads 56 and 56 partially overlap so that the rotations of the two rod-shaped nozzle heads 56 and 56 do not collide with each other, the variation in cleaning power can be further reduced. That is, in the overlapping portion H of the two rod-shaped nozzle heads 56, 56, the ejection nozzle 58 (the rotational peripheral speed is large) on the end portion side of one rod-shaped nozzle head 56 and the central portion side of the other rod-shaped nozzle head 56. Since the ejection nozzle 58 (with a small rotational peripheral speed) performs cleaning while offsetting the rotational peripheral speed difference, the variation in cleaning power can be further reduced.
Here, in the above description, the two rod-like nozzle heads 56, 56 have been described as being two, but a configuration in which more than two rod-shaped nozzle heads 56 are connected in parallel can also be employed. Similarly, in this case, the distance D between the rotation axis centers of the two adjacent rod-shaped nozzle heads 56, 56 is set to the total length L1 + of the two rod-shaped nozzle heads 56, 56 rotating around the rotation axis. By making it shorter than 1/2 of L2 [that is, (L1 + L2) / 2], two adjacent rod-shaped nozzle heads 56, 56 are configured to partially overlap each other. , 56 can be rotated by a single motor 66 while shifting the rotational phase. Thereby, it has the same effect as the case where there are two rod-shaped nozzle heads.

  In the case of the two rod-like nozzle heads 56 and 56 as in the present embodiment, the variation in cleaning power due to the difference in rotational peripheral speed can be further reduced in the central portion of the temporary equipment 14.

  Therefore, it is more preferable to increase the number of the rod-shaped nozzle heads 56 than two because the number of overlapping portions H between the rod-shaped nozzle heads 56 can be increased. Further, it is more preferable that the length H in which the two rod-shaped nozzle heads 56 and 56 overlap is made as large as possible within a range not inhibiting the rotation of the rod-shaped nozzle heads 56 and 56 from the viewpoint of reducing variation in cleaning power. .

  <Operation of temporary equipment cleaning device>

  Next, a step of cleaning the temporary equipment 14 using the temporary equipment cleaning apparatus 10 configured as described above will be described with reference to FIGS. Note that control of each device (such as the cleaning robot 26) in each step is performed by an instruction from the control means 32, but in the description of each step, the control means 32 is omitted.

  As shown in FIG. 3, first, worker Y places temporary equipment 14 </ b> A (not shown in FIG. 3) before cleaning on positioning conveyor 46. As a result, the temporary equipment 14A is positioned at the correct handling position of the handling robot 30 (positioning step of the temporary equipment 14A).

  Next, the handling robot 30 grips the temporary equipment 14A on the gripping board 80 (see FIG. 2), and transports the gripped temporary equipment 14A from the positioning conveyor 46 to the loading / unloading stage 16 to the first transport line 34. The temporary jig 14A is held by the holding jig 22 (a step of carrying in the temporary jig 14A).

  Next, the trolley 42 (see FIG. 2) of the first transfer line 34 transfers the temporary equipment 14A held by the holding jig 22 from the carry-in / out stage 16 to the cleaning stage 18 (outward transfer step of the temporary equipment 14A). .

  Next, both surfaces (front surface and back surface) of the temporary equipment 14A are simultaneously cleaned by ejecting pressurized water from the pressurized water jet gun 24 provided in the pair of cleaning robots 26, 26 facing each other and spraying the pressurized water onto the surface of the temporary equipment 14A. (Temporary equipment 14A cleaning step).

  Meanwhile, while the temporary equipment 14A is being cleaned by the cleaning stage 18, the operator Y places the temporary equipment 14B to be cleaned next on the positioning conveyor 46 (positioning step of the temporary equipment 14B).

  Then, the handling robot 30 conveys the temporary equipment 14B from the positioning conveyor 46 to the carry-in / carry-out stage 16, and holds the temporary equipment 14B on the holding jig 22 of the second transfer line 36 (a temporary equipment 14B carrying-in step).

  FIG. 9A is a diagram in which a cleaning step for cleaning the temporary equipment 14A at the cleaning stage 18 and a carry-in step for carrying the temporary equipment 14B into the carry-in / out stage 16 are performed in parallel.

  Next, the temporary equipment 14A that has been cleaned at the cleaning stage 18 is transported from the cleaning stage 18 to the carry-in / carry-out stage 16 by the trolley 42 of the first transport line 34 (return path transport step of the temporary equipment 14A). Then, it is unloaded from the first transfer line 34 by the handling robot 30 and stacked on the stacking lift 48 (unloading step of the temporary equipment 14A).

  In parallel with the return conveyance step and the carry-out step of the temporary equipment 14A, the temporary equipment 14B of the carry-in / carry-out stage 16 is conveyed from the carry-in / carry-out stage 16 to the cleaning stage 18 by the trolley 42 of the second transfer line 36 (temporary Outward transfer step of the equipment 14B).

  Then, the temporary equipment 14B ejects pressurized water from the pressurized water ejection gun 24 provided in the pair of cleaning robots 26, 26 facing each other and sprays it on the surface of the temporary equipment 14B. ) At the same time (temporary equipment 14B cleaning step).

  FIG. 9B is a diagram in which a cleaning step for cleaning the temporary equipment 14B in the cleaning stage 18 and a return path transporting step for transporting the temporary equipment 14A to the carry-in / out stage 16 are performed in parallel.

  Next, the temporary equipment 14B that has been cleaned at the cleaning stage 18 is transported from the cleaning stage 18 to the carry-in / out stage 16 by the trolley 42 of the second transport line 36 (return path transport step of the temporary equipment 14B). Then, it is unloaded from the second transfer line 36 by the handling robot 30 and stacked on the stacking lift 48 (unloading step of the temporary equipment 14B).

  As described above, by repeating the above-described operation of the temporary equipment 14A and the temporary equipment 14B, not only the temporary equipment 14 can be continuously washed one after another, but also both surfaces of the temporary equipment 14 are simultaneously washed. Compared with the conventional temporary equipment cleaning apparatus for cleaning, the time for cleaning one temporary equipment 14 can be reduced by half.

  In addition, by cleaning with the pressurized water ejection gun 24 according to the embodiment of the present invention, the variation in cleaning power at the cleaning portion of the temporary equipment 14 can be reduced.

  Further, in the cleaning stage 18, an extremely high pressure pressurized water of 100 to 200 MPa is ejected from the pressurized water ejection gun 24 of the pair of cleaning robots 26, 26 arranged opposite to each other. Therefore, when the pressurized water ejected from the mutual pressurized water ejection guns 24, 24 passes through the opening of the temporary equipment 14 and hits the arm 26A of the mutual cleaning robot 26, the pressure hose 54 for supplying pressurized water, or the like, so-called competing. The arm 26A and the pressure hose 54 may be damaged.

  Therefore, in the present invention, as a countermeasure against competing, the competing preventing means 28 for preventing the washing robots 26, 26 from competing with each other with the jetted pressurized water is provided, so that the arm 26A and the pressure hose 54 may be damaged. Absent.

  Furthermore, in the present invention, since the cleaning chamber 12 having the inlet 12A through which the temporary equipment 14 passes and surrounding the cleaning stage 18 is provided, the pressurized water is not ejected outside the temporary equipment cleaning apparatus 10, and the temporary equipment cleaning is performed. The safety of the operator Y who operates the apparatus 10 can also be ensured. In addition, by providing the competing prevention means 28, the pair of cleaning robots 26 and 26 can be arranged to face each other, so that the cleaning chamber 12 surrounding the cleaning stage 18 can be made compact.

  Thereby, the temporary equipment washing | cleaning apparatus 10 of this invention can improve a washing | cleaning efficiency remarkably irrespective of a compact apparatus structure. As a result of actually performing the test operation for 7 hours with the test apparatus, about 500 pipe-like temporary equipments 14 could be washed.

  In addition, since the pressurized water ejection gun 24 according to the embodiment of the present invention is incorporated, the rotating nozzle head can be reduced in size and weight, and it is not necessary to ensure high rigidity. Variations in cleaning at the cleaning portion of the equipment 14 can be reduced.

DESCRIPTION OF SYMBOLS 10 ... Temporary equipment washing apparatus, 12 ... Cleaning room, 14 ... Temporary equipment, 16 ... Loading / unloading stage, 18 ... Cleaning stage, 20 ... Conveyance means, 22 ... Holding jig, 24 ... Pressurized water ejection gun, 26 ... For washing Robot, 28 ... Competing prevention means, 30 ... Handling robot, 32 ... Control means, 34 ... First transfer line, 36 ... Second transfer line, 38 ... Gate-type support, 40 ... Transfer rail, 42 ... Trolley, 44 Guide rail, 46 Positioning conveyor, 48 Stack lift, 50 Discharge conveyor, 51 Water pump, 52 Water tank, 53 Bracket, 54 Pressure hose, 55 Turning mechanism, 56 Bar shape Nozzle head, 57 ... housing (device main body), 58 ... jet nozzle, 59 ... rotation / water supply mechanism, 61 ... fixing means (bolt), 63 ... channel inlet, 65 ... bearing, 6 DESCRIPTION OF SYMBOLS ... Motor (rotation drive means), 67 ... Motor support member, 68 ... Motor rotation shaft, 69 ... Hollow rotation shaft, 70 ... Upper fluid bearing, 72 ... Lower fluid bearing, 73 ... Flange, 74 ... Discharge pipe, 75 ... Swivel joint, 76 ... discharge pump, 77 ... rotary joint, 78 ... storage tank, 80 ... gripping board, 100 ... framed scaffolding, 102 ... building frame, 102a ... vertical member, 102b ... horizontal member, 104 ... cloth plate, 104a ... Grab metal fittings, 106 ... Crossed bars, 108 ... Base jack

Claims (9)

In a pressurized water spray gun that cleans temporary equipment for pipe-like or plate-like construction scaffolds with pressurized water,
An apparatus main body supported by a support portion via a turning mechanism and capable of turning within a predetermined turning angle range around a turning axis;
A plurality of rod-shaped nozzle heads that are rotatably supported in parallel around a plurality of rotation axes parallel to the swivel axis in the apparatus main body, and a flow path of pressurized water is formed inside;
A plurality of jet nozzles formed in the longitudinal direction of the rod-shaped nozzle head and communicating with the flow path;
A rotation / water supply mechanism that rotationally drives the plurality of rod-shaped nozzle heads and supplies the pressurized water to the flow paths of the plurality of rod-shaped nozzle heads;
Fixing means for fixing the turning of the apparatus main body within the turning angle range;
A pressurized water jet gun, wherein a total length when the plurality of rod-shaped nozzle heads are arranged in a straight line is equal to a width of a temporary equipment having a maximum width among types of the temporary equipment.   The pressurized water ejection gun according to claim 1, wherein the plurality of rod-shaped nozzle heads is two.   The pressurized water ejection gun according to claim 1 or 2, wherein the apparatus main body is capable of turning in a turning angle range of 90 degrees around the turning axis.   By making the distance between the adjacent rotary shaft cores of the plurality of rod-shaped nozzle heads shorter than ½ of the total length of the two rod-shaped nozzle heads rotating around the rotary shaft core, The rod-shaped nozzle head is configured so as to partially overlap, and the plurality of rod-shaped nozzle heads are rotated with a rotational phase shifted by a single rotation driving means. The pressurized water ejection gun as described.   The pressurized water ejection gun according to any one of claims 1 to 4, wherein the pressurized water is ejected from the ejection nozzle at a pressure of 100 to 200 MPa.   The pressurized water ejection gun according to any one of claims 1 to 5, wherein the rod-shaped nozzle head rotates at a rotational speed of 500 to 2000 rpm. In a temporary equipment cleaning device for cleaning temporary equipment for pipe- or plate-like construction scaffolds with pressurized water,
A pair of transfer lines are arranged in parallel between a carry-in / carry-out stage for carrying in / out the temporary equipment and a washing stage for washing the temporary equipment, and the temporary equipment is placed in the carry-in / out stage and the washing stage. Transport means for shuttle transport between,
A holding jig that is provided in each of the pair of transfer lines, and holds the temporary equipment detachably in a vertical state on the transfer means;
7. The device according to claim 1, wherein the cleaning device is disposed so as to face both sides of the pair of transfer lines of the cleaning stage, and is cleaned by spraying pressurized water onto the temporary device along the surface of the temporary device in the vertical state. And a pressurized water cleaning gun.   8. The temporary equipment cleaning apparatus according to claim 7, wherein the support portion for rotatably supporting the apparatus main body of the pressurized water spray gun is a pair of cleaning robots of an articulated arm type or an orthogonal coordinate system type. A cleaning chamber having an entrance through which the temporary equipment passes and surrounding the cleaning stage;
Anti-collision means for preventing the coordinating states of the cleaning robots with the pressurized water ejected from the pressurized water ejection gun of the pair of cleaning robots;
Control means for controlling at least the transport means and the cleaning robot,
The control means is configured so that when one of the holding jigs provided on the pair of transfer lines is on the cleaning stage, the other holding jig is on the loading / unloading stage. 9. The temporary equipment cleaning apparatus according to claim 8, wherein the pair of cleaning robots are controlled so as to simultaneously clean the front and back surfaces of the temporary equipment transferred to the cleaning stage. .