JP2015223136A - Apparatus and method of washing hydroponics panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus and a method of washing a hydroponics panel which are capable of efficiently washing even inner walls of holes.SOLUTION: A washing apparatus 10 washes a hydroponics panel 100 on which a plurality of holes 102 are formed, and comprises a conveyance mechanism 12 which conveys the hydroponics panel, and a washing part 14 provided for a conveyance route, the washing part includes a frame pipe 16, and a plurality of nozzles 22u, 22d, 22l, 22r facing vertical and horizontal directions are attached to the frame pipe. The vertical nozzles 22u, 22d spray high-pressure conic water to the same hole from above and below the hydroponics panel, and the horizontal nozzles 22l, 22r spray high-pressure conic water to right/left side ends of the hydroponics panel. A vertical motion mechanism 26 vertically moves the frame pipe.

Description

  The present invention relates to an apparatus and method for cleaning a hydroponic panel, and in particular, a hydroponic panel that has a plurality of holes in a plane and that is formed into a flat plate shape with a synthetic resin such as foamed polystyrene. The present invention relates to a cleaning apparatus and method.

  An example of the background technology as the background of the present invention is disclosed in Patent Document 1. In the technique of this Patent Document 1, the hydroponic panel is fed to the front of the upper and lower roll brushes in the horizontal direction with two rows of transport chains, and is washed through the upper and lower roll brushes.

JP 2000-245276 [A01G 31/02, B08B 1/04]

  In the technique of Patent Document 1, dirt on the surface of the hydroponic panel can be removed, but there is a problem that dirt, moss or algae attached to the inner wall of the hole are difficult to wash (remove).

  Therefore, a main object of the present invention is to provide a novel hydroponic panel cleaning apparatus and method.

  Another object of the present invention is to provide an apparatus and a method for cleaning a hydroponic panel that can efficiently clean the inner wall of a hole.

  The present invention employs the following configuration in order to solve the above problems. Note that reference numerals in parentheses, supplementary explanations, and the like indicate correspondence relationships with embodiments described later to help understanding of the present invention, and do not limit the present invention in any way.

  A first invention is a cleaning device (10) for cleaning a hydroponic panel (100) having a hole (102), the transport means (12) for transporting the hydroponic panel, and hydroponics by the transport means A cleaning unit (14) provided in the transport path of the panel is provided, and the cleaning unit relatively moves up and down the nozzle (22) for injecting high-pressure water in contact with the inner wall of the hole, and the nozzle and the hydroponic panel. It is a washing | cleaning apparatus containing the vertical movement means (26).

  In the first invention, for example, high-pressure water that diffuses toward the tip is injected from the nozzle (22). This high-pressure water is sprayed at an angle to the inner wall (104) of the hole (102) of the hydroponic panel (100), and the inner wall and the high-pressure water come into contact with each other. Garbage, moss, algae, etc. adhering to the inner wall are blown away with high-pressure water. The nozzle and the hydroponic panel are relatively displaced in the vertical direction by the vertical movement means. Accordingly, the contact portion between the high-pressure water and the inner wall is displaced in the vertical direction, so that the inner wall can be washed in the entire height direction.

  According to 1st invention, it can wash | clean efficiently also including the inside of the hole of a hydroponic panel. Moreover, since high pressure water is used and no brush or the like is used, the possibility that the hydroponic panel is damaged can be reduced.

  A second invention is dependent on the first invention, and the cleaning unit includes an upper nozzle (22u) and a lower nozzle (22d) for injecting high-pressure water into the same hole from above and below the hydroponic panel. Device.

  In 2nd invention, since the same hole is wash | cleaned with high pressure water from the upper and lower sides, it can wash | clean only by a hydroponic panel passing a washing | cleaning part once, and is efficient.

  A third invention is a cleaning apparatus according to the first or second invention, wherein the vertical movement means moves the nozzles (22u, 22d) up and down.

  In the third invention, since the nozzles (22, 22u, 22d) are moved up and down, the vertical movement can be performed at a higher speed than when the hydroponic panel (100) is moved up and down. Therefore, the cleaning efficiency can be further increased.

  A fourth invention is a cleaning device according to the third invention, wherein the cleaning section includes a pipe (16) for attaching a nozzle, and the vertical movement means moves the pipe up and down.

  In the fourth aspect of the invention, since the pipe is moved up and down, many nozzles can be moved up and down efficiently.

  A fifth invention is a cleaning device according to the fourth invention, wherein the vertical movement means includes an eccentric cam having a pipe as a follower.

  In the fifth invention, since the eccentric cam is used as the vertical movement means, the vertical movement can be stably performed with a simple configuration.

  A sixth invention is a cleaning apparatus according to any one of the first to fifth inventions, wherein the nozzle ejects high-pressure conical water, and the conical surface of the high-pressure conical water contacts the inner wall of the hole.

  In the sixth invention, a conical nozzle is used as the nozzle, and the conical surface of the high-pressure conical water is made incident on the inner wall. Since the conical surface of the high-pressure conical water contacts the entire circumference of the inner wall at once, the contact range between the high-pressure water and the inner wall is wide and efficient cleaning is possible.

  7th invention is a washing | cleaning method for wash | cleaning the hydroponic panel (100) which has a hole (102), Comprising: The step of conveying a hydroponic panel, and the hole of the hydroponic panel conveyed by a conveyance means It is a cleaning method including the step of displacing the contact portion between the high pressure water and the inner wall in the thickness direction of the hydroponic panel while jetting the high pressure water that contacts the inner wall.

  In the seventh invention, the same effect as in the first invention can be expected.

  According to this invention, the inner wall of the hole of the hydroponic panel can also be cleaned efficiently.

  The above object, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

FIG. 1 is a schematic view showing a main part of a hydroponic panel cleaning apparatus according to an embodiment of the present invention. FIG. 2 is a schematic diagram illustrating high-pressure conical water in the embodiment of FIG. 1, FIG. 2 (A) shows the contact state between the inner wall of the hole of the hydroponic panel and high-pressure conical water, and FIG. Shows the range of conical water vertical movement. FIG. 3 is a schematic view showing the appearance of a hydroponic panel cleaning apparatus according to an embodiment of the present invention. FIG. 4 is a schematic view showing a state where the door is opened inside the embodiment shown in FIG. FIG. 5 is a schematic view showing a state inside the embodiment of FIG. 3 as viewed from the hydroponics panel inlet side.

  Referring to FIG. 1, a hydroponic panel cleaning apparatus 10 according to an embodiment of the present invention includes a transport mechanism 12 that transports a hydroponic panel 100 so as to pass through a cleaning unit 14. As an example, the transport mechanism 12 includes a chain conveyor, a roller conveyor, and the like.

  The hydroponic panel 100 is formed into a flat rectangular plate of 600 mm × 900 mm, for example, with a foamed resin such as foamed polystyrene or foamed polyethylene. In the hydroponic panel 100, as an example, a plurality of rows (eight rows in the embodiment) of eight holes 102 per row are formed. Such a hydroponic panel 100 is used, for example, for hydroponics of leafy vegetables such as mitsuba, lettuce and spinach.

  The cleaning unit 14 is for cleaning the hydroponic panel 100 transported to the position of the cleaning unit 14 by the transport mechanism 12, and is formed in a rectangular frame shape with a size that allows the hydroponic panel 100 to pass therethrough. A frame pipe 16 is included. The frame pipe 16 is formed in a frame shape by connecting an upper pipe 161, a lower pipe 162, a left pipe 163, and a right pipe 164, each made of a vinyl chloride pipe, for example. High pressure water is sent from the pump 20 through the hose 18 to the frame pipe 16, and the water filling the frame pipe 16 is ejected as high pressure conical water 24 by the nozzle 22 attached to the frame pipe 16. In the following description, reference numeral “22” is used for the nozzles unless otherwise necessary to distinguish.

  The nozzle 22 injects the high-pressure conical water 24. The high-pressure conical water may be a full-cone or a hollow cone. Any conical shape may be used. The angle of the outer edge of the conical water 24, that is, the angle of the conical surface is arbitrary, but can be used in the range of 10 ° -80 °.

  More specifically, eight upper nozzles 22u are attached to the upper pipe 161 of the frame pipe 16 so that the high-pressure conical water 24 is jetted downward. These upper nozzles 22u are for washing the hydroponic panel 100 from the upper surface.

  When the high-pressure conical water 24 is ejected from the upper nozzle 22u, the conical surface of the conical water 24 is incident on the inner wall 104 of the hole 102 of the hydroponic panel 100 at an angle greater than a certain angle. Therefore, dust, moss, algae, etc. adhering to the inner wall 104 can be peeled off by water pressure.

  Eight lower nozzles 22 d are also attached upward to the lower pipe 162 of the frame pipe 16. The lower nozzle 22d ejects the high-pressure conical water 24 from the lower surface of the hydroponic panel 100. The high-pressure conical water 24 from the nozzle 22d of the lower pipe 162 is also sprayed on the inner wall 104 at an angle of a certain angle or more, and the deposits on the inner wall 104 are peeled off by water pressure.

  However, each lower nozzle 22d corresponds to each upper nozzle 22u, and sprays high-pressure conical water 24 from above and below into the same hole of the hydroponic panel 100 as shown in FIG. Thereby, the hydroponic panel 100 can be washed in a short time. That is, if only the upper nozzle 22u or the lower nozzle 22d is provided, after the cleaning of the upper surface (one surface) side of the hydroponic panel 100 is finished, the same hydroponic panel is turned over and the lower surface is again moved by the upper nozzle 22u or the lower nozzle 22d. Although it is necessary to clean the (other surface) side, when both the upper nozzle 22u and the lower nozzle 22d are provided as in this embodiment, the FIG. 2k94i hydroponic panel 100 can be simultaneously cleaned from the upper and lower surfaces, so efficiency Is.

  In addition, this invention does not exclude the structure which wash | cleans the hydroponic panel 100 one side at a time.

  Further, two left nozzles 22l (el) are attached to the left pipe 163 of the frame pipe 16 so that each high-pressure conical water 24 is jetted to the right, and the right pipe 164 of the frame pipe 16 is attached. The two right nozzles 22r are attached to the left.

  As shown in FIG. 2 (A), the conical surfaces of the high-pressure conical water 24 from the upper nozzle 22u and the lower nozzle 22d are sprayed on the inner wall 104 at a predetermined angle. ) And the inner wall 104 are all in the circumferential direction of the inner wall 104, but are in contact with each other only at one point in the thickness direction of the hydroponic panel 100. Therefore, if it is left as it is, there is a possibility that uneven cleaning (the presence of a part that has been cleaned and a part in which the cleaning is incomplete) may occur in the inner wall 104 in the thickness direction.

  Therefore, in this embodiment, the vertical movement mechanism 26 for displacing the frame pipe 16 that constitutes the cleaning unit 14, that is, the upper and lower nozzles 22u and 22d (the left and right nozzles 22l and 22r), is provided. Any mechanism can be used as the vertical movement mechanism 26. For example, a mechanism in which a nut is attached to the frame pipe 16 and a lead screw is screwed into the nut, or a mechanism using a fluid actuator or an electromagnetic actuator is conceivable. However, in the embodiment, the vertical movement mechanism 26 is configured by an eccentric cam in which the lower end of the frame pipe 16 is a cam follower.

  When the frame pipe 16, that is, the nozzles 22 u and 22 d are moved up and down by the vertical movement mechanism 26, the contact portion between the high-pressure conical water 24 and the inner wall 104 of the hole 102 moves up and down in the hole 102 as shown in FIG. Therefore, the inner wall 104 receives the injection of the high-pressure conical water 24 over the entire length in the thickness direction (the height direction of the hole 102), and the above-described uneven cleaning is eliminated.

  In addition, the range in which the frame pipe 16, that is, the nozzle 22 is moved up and down by the vertical movement mechanism 26 is set according to the following conditions.

  In the nozzle 22u attached to the upper pipe 161, as shown in FIG. 2B, when the nozzle 22u is raised to the highest position (upper position), the lower end of the high-pressure conical water 24 spreads larger than the hole 102 and The conical surface of the high-pressure conical water 24 comes into contact with the lower end in the thickness direction of the inner wall 104 when it comes into contact with the upper surface of the hydroponic panel 100 and is lowered to the lowest position (lower position). When in the upper position, the high pressure conical water 24 cleans the upper surface around the hole 102. And as it descends from the upper position, the range (spread) of the high-pressure conical water 24 acting on the upper surface of the hydroponic panel 100 becomes smaller, and eventually comes into contact with the upper end in the thickness direction of the inner wall 104 of the hole 102. When it further descends, it reaches a lower position, and the conical surface of the high-pressure conical water 24 contacts the lower end in the thickness direction of the inner wall 104. And if it raises from a lower position, the high pressure conical water 24 will be raised, contacting the inner wall 104 again.

  In the nozzle 22d attached to the lower pipe 162, as shown in FIG. 2B, when the nozzle 22d is raised to the highest position (upper position), the conical surface of the high-pressure conical water 24 contacts the upper end in the thickness direction of the inner wall 104. When lowered to the lowest position (lower position), the upper end of the high-pressure conical water 24 spreads larger than the hole 102 and comes into contact with the lower surface of the hydroponic panel 100 around the hole 102. When in the lower position, the high pressure conical water 24 cleans the lower surface around the hole 102. And as it rises from the lower position, the range (spread) of the high-pressure conical water 24 acting on the lower surface of the hydroponic panel 100 becomes smaller, and eventually comes into contact with the lower end in the thickness direction of the inner wall 104 of the hole 102. When it further rises, it reaches the upper position, and the conical surface of the high-pressure conical water 24 comes into contact with the upper end of the inner wall 104 in the thickness direction. Then, when lowered from the upper position, the high-pressure conical water 24 is lowered while coming into contact with the inner wall 104 again.

  By such vertical movement of the high-pressure conical water 24, both the upper surface of the hydroponic panel 100 and the inner wall 104 of the hole 102 can be sufficiently washed with the high-pressure conical water 24.

  For the nozzle 22l attached to the left pipe 163 to the right, the high-pressure conical water 24 is arranged on the left side of the hydroponic panel 100 so as to wash the left side of the left side and the top and bottom sides. Similarly, the nozzle 22r attached leftward to the right pipe 164 is arranged so that the high-pressure conical water 24 cleans the left side of the hydroponic panel 100 and the left end of the top and bottom surfaces.

  However, since the nozzles 22l and 22r of the left and right pipes 163 and 164 are not for washing the inside of the holes, that is, for washing only the outer surface of the hydroponic panel 100, they are conical nozzles that eject high-pressure conical water. There is no need. It may be replaced with a fan-shaped nozzle (injecting fan-shaped high-pressure water spreading toward the front) or a straight traveling or direct-injection nozzle (injecting linear high-pressure water).

  3 to 5 show specific examples of the cleaning apparatus 10. As shown in FIG. 3, the cleaning device 10 includes a rectangular parallelepiped housing 28, and a discharge port 32 for discharging the cleaned hydroponic panel 100 is formed at an appropriate position of the rear panel 30 of the housing 28. . On the side surface of the housing 28, a door 34 that can be opened and closed is provided for inspection, adjustment, and repair inside the housing. The housing 28 is supported by the legs 36, whereby the discharge port 32 is set to an appropriate height.

  The width of the discharge port 32 is set to 700 mm that is slightly larger than the width of the hydroponic panel 100. The depth direction (width direction in FIG. 5) of the housing 28 in FIG. 3 is about 700 mm, and the right and left direction in FIG. 3 (width direction in FIG. 4) including the door 34 includes legs 36 of about 1020 mm and 260 mm. The height of the housing is set to about 1250 mm.

  Referring to FIG. 4, the front panel 38 facing the rear panel 30 of the housing 28 in FIG. 3 is provided with an input port 40 at a position corresponding to the discharge port 32, and the hydroponic panel 100 to be cleaned is It is introduced into the housing 28 from the insertion port 40. And the hydroponic panel 100 thrown in from the insertion port 40 is introduced between the feed roller 121 and the presser roller 126 which comprise the conveyance mechanism 12 of FIG. The pairs of the feed roller 121 and the presser roller 126 are installed at two locations near the input port 40 and near the discharge port 32. However, one presser roller 126 is added in front of the cleaning unit 14, that is, the frame pipe 16. This is to prevent the hydroponic panel from being lifted by jetting from the lower surface side of the high-pressure water in the cleaning unit 14 and to hold the hydroponic panel stably. In addition, in order to prevent that a hydroponic panel sinks by injection from the upper surface side of high pressure water, the rail 129 (FIG. 5 and mentioned later) is provided.

  A support plate 42 is provided in the upper part of the housing, and a motor 44 is installed on the support plate 42 in addition to the pump 20 shown in FIG. These motor 44 and pump 20 may be installed in the lower part of the housing, but in order to minimize the possibility of an electrical system accident due to water, in the embodiment, they are installed above the frame pipe 16 (FIG. 5). I did it.

  As shown in FIG. 5, a frame pipe 16 that constitutes the cleaning unit 14 is disposed substantially at the center in the housing. However, in FIG. 5, the nozzle 22 (FIG. 1) attached to the frame pipe 16 is omitted in order to avoid the trouble of drawing.

  Below the frame pipe 16 is provided an eccentric cam 261 that constitutes the vertical movement mechanism 26 shown in FIG. The eccentric cam 261 is fixed to the cam shaft 262, and two pulleys 263 and 264 are provided on the end portion (door 34 side) of the cam shaft 262. On the other hand, the motor 44 has an output shaft 46, and the output shaft 46 is provided with a pulley 48.

  The belt 50 is stretched between the pulley 48 of the output shaft 46 of the motor 44 and the pulley 263 of the cam shaft 262. Therefore, the cam shaft 262, that is, the eccentric cam 261 is rotated by the driving force of the motor 44.

  The outer surface (contour) of the eccentric cam 261 contacts the lower surface of the lower pipe 162 of the frame pipe 16. That is, the lower pipe 162, that is, the frame pipe 16 serves as a follower of the eccentric cam 261, and according to the rotation of the eccentric cam 261 by the motor 44, as described above with reference to FIG. Is reciprocated (moves up and down). However, FIG. 5 illustrates a state in which the frame pipe 16 is in the lower position.

  In addition, since the lower surface of the lower pipe 162 of the frame pipe 16 is in direct contact with the cam surface of the eccentric cam 261, the lower pipe 162 made of resin such as vinyl chloride may be damaged. Thus, for example, a cushion material 165 sandwiched between stainless steel plates may be interposed between the eccentric cam 261 and the lower pipe 162.

  As described above, the hydroponic panel 100 introduced from the insertion port 40 (FIG. 4) is transferred between the feed roller 121 and the presser roller 126 shown in FIG. For example, three rubber rollers 123 are fixedly spaced apart in the axial direction. Two pulleys 124 and 125 are provided at the end of the roller shaft 122 on the door 34 side.

  The belt 52 is bridged between the pulley 124 and the pulley 264 provided on the previous cam shaft 262. Further, as shown in FIG. 4, the belt 54 is bridged between pulleys 125 provided on the roller shafts 122 of the two feeding rollers 121 arranged in the vicinity of the charging port 40 and the discharging port 32.

  As described above, since the output shaft 46 of the motor 44 is connected to the cam shaft 262 via the pulleys 48, 263 and the belt, the driving force of the motor 44 is transmitted to the cam shaft 262, so that the cam shaft That is, the eccentric cam 261 is rotated. Further, since the cam shaft 262 and the roller shaft 122 are connected via the pulleys 264 and 124 and the belt 52, the driving force of the motor 44 is transmitted to the roller shaft 122.

  Accordingly, the conveyance mechanism 12, that is, the feed roller 121 and the vertical movement mechanism 26, that is, the eccentric cam 261 are simultaneously driven by one motor 44. The eccentric cam 261 needs to move the frame pipe 16 up and down. Since the pressure water is fed from the pump 20 to the frame pipe 16, the frame pipe 16 has a considerable weight (3 kg or more). Therefore, the motor 44 requires a certain level of power, but in the embodiment, a single-phase 100V, 2-horsepower motor is used.

  However, the eccentric cam 261 and the feed roller 121 may be driven by separate motors.

  The pressing roller 126 paired with each of the two feeding rollers 121 includes a roller shaft 127 and a rubber roller 128 attached thereto similarly to the feeding roller 121, but no driving force is applied to the pressing roller 126. . Therefore, the presser roller 126 only follows the feed roller 121.

  As described above, the feed roller 121 has the rubber roller 123 fixed to the roller shaft 122, and rails 129 made of relatively thin resin or metal are laid outside the rubber rollers at both ends. The rail 129 has an upper surface that is flush with or slightly below the upper end surface of the rubber roller 123 of the feed roller 121 and extends from the vicinity of the input port 40 to the vicinity of the discharge port 32. Accordingly, the lower surface of the hydroponic panel 100 introduced from the insertion port 40 is conveyed by the feed roller 121 while being supported by the feed roller 121 and the rail 129.

  A drain pan 56 is installed on the inner bottom surface of the housing 28, and the drainage after washing the hydroponic panel 100 with the cleaning unit 14, that is, the nozzle 22 of the frame pipe 16 (FIG. 1) is drained from the drain pan 56 to the drain hose ( It is drained through (not shown).

  When cleaning the hydroponic panel 100 using the cleaning device 10 of this embodiment, first, the motor 44 and the pump 20 are powered on. Accordingly, the feed roller 121 starts rotating, and the hydroponic panel 100 thrown in from the loading port 40 is conveyed toward the discharging port 32.

  On the other hand, pressure water is sent from the pump 20 through the hose (not shown) into the frame pipe 16, and high-pressure conical water is injected from the nozzles 22u, 22d, 22l, and 22r in FIG.

  Therefore, when the hydroponic panel 100 passes through the frame pipe 16, the hydroponic panel 100 is washed by the high-pressure conical water from the nozzles 22u, 22d, 22l, and 22r as described above. At this time, since the eccentric cam 261 is rotated by the motor 44, the frame pipe 16 repeats the vertical movement. Therefore, as previously described with reference to FIG. 1, the hydroponic panel 100 is washed. Then, the washed hydroponic panel is discharged from the discharge port 32 by the feed roller 121.

  In FIG. 1, the cleaning unit 14, that is, the frame pipe 16 is depicted as being provided at the front end portion of the hydroponic panel 100, but this means that all the nozzles 22 u, 22 d, 22 l provided in the frame pipe 16 are provided. The frame pipe is actually provided at the position of the eccentric cam 261 as shown in FIG. 4, so that the hydroponic panel is washed substantially at the center in the housing 28. . Of course, it is arbitrary to set the cleaning unit 14 at any position on the conveyance path of the hydroponic panel 100, and the cleaning unit 14 may be set to the front end or the rear end as shown in FIG.

  In the above-described embodiment, conical water that diffuses (spreads) toward the tip is used as high-pressure water in order to efficiently clean the inner wall of the hole 102. However, similarly, a fan-shaped nozzle that jets high-pressure fan-shaped water that spreads toward the tip can also be used.

  Furthermore, in the above-described embodiment, the nozzle 22 is moved up and down in order to spray the high-pressure water uniformly in the height direction of the inner wall 104 by vertically displacing the contact portion between the high-pressure water and the inner wall of the hole 102. However, the height direction of the nozzle may be fixed and the hydroponic panel 100 may be displaced in the vertical direction, or both the nozzle 22 and the hydroponic panel 100 may be relatively moved up and down. Move it.

  In the above-described embodiment, the driving force of the motor 44 is transmitted by a pulley and a belt. However, the pulley and the belt may be a timing pulley and a timing belt, respectively, or may be replaced by a gear and a chain.

  In addition, the specific numerical values such as the dimensions given above are merely examples, and can be appropriately changed according to necessity such as product specifications.

DESCRIPTION OF SYMBOLS 10 ... Cleaning apparatus 12 ... Conveyance mechanism 14 ... Cleaning part 16 ... Frame pipe 20 ... Pump 22 ... Nozzle 24 ... High pressure conical water 26 ... Vertical movement mechanism 28 ... Housing 32 ... Discharge port 40 ... Input port 44 ... Motor 121 ... Feed roller 126 ... Presser roller 261 ... Eccentric cam 100 ... Hydroponic panel 102 ... Hole 104 ... Inner wall

Claims (7)

A cleaning device for cleaning a hydroponic panel having holes,
A transport unit that transports the hydroponic panel; and a cleaning unit provided in a transport path of the hydroponic panel by the transport unit,
The cleaning unit includes a nozzle that injects high-pressure water that comes into contact with an inner wall of the hole, and a vertical movement unit that relatively moves the nozzle and the hydroponic panel up and down.   The said washing | cleaning part is a washing | cleaning apparatus of Claim 1 containing the upper nozzle and lower nozzle which inject | pour the said high pressure water into the same hole from the upper direction and the downward direction of the said hydroponics panel.   The cleaning apparatus according to claim 1, wherein the vertical movement means moves the nozzle up and down.   The cleaning apparatus according to claim 3, wherein the cleaning section includes a pipe (16) for mounting the nozzle, and the vertical movement means moves the pipe up and down.   The cleaning apparatus according to claim 4, wherein the vertical movement means includes an eccentric cam having the pipe as a follower.   The cleaning device according to claim 1, wherein the nozzle ejects high-pressure conical water, and a conical surface of the high-pressure conical water contacts the inner wall of the hole. A cleaning method for cleaning a hydroponic panel having holes,
A step of conveying the hydroponic panel; and jetting high-pressure water contacting the inner wall of the hole of the hydroponic panel conveyed in the conveying step, the contact portion between the high-pressure water and the inner wall of the hydroponic panel A cleaning method comprising a step of displacing in the thickness direction.

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