JP2012095547A - Stacking equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the working efficiency while retaining an excellent stacking posture of seedling raising boxes and excellent accuracy in transfer in stacking equipment.SOLUTION: The stacking apparatus 118 for laterally transferring stacked seedling raising boxes C while holding the boxes C and stacking a prescribed number of boxes C is configured to stack the prescribed number of seedling raising boxes C by stacking the stacked seedling raising boxes C on stacked seedling raising boxes a plurality of times. The stacking apparatus 118 includes: a movable arm 126 movable in the lateral direction for holding seedling raising boxes C; and a controller 125 for controlling the position of the seedling raising boxes C in contact with a side surface of already stacked seedling raising boxes C and a side surface of the seedling raising boxes C held by the movable arm 126 by moving in the lateral direction together with the movable arm 126 and moving downward lower than the distal end of the movable arm 126.

Description

  The present invention relates to a stacking facility.

  A stacking device that lifts the seedling boxes transported by the seedling box transport conveyor from below and stacks the seedling boxes in a predetermined number of stacks, and holds the seedling boxes stacked by the stacking device and moves them horizontally to perform a predetermined load. A stacking device for stacking the number of sheets, a pedestal on which a seedling box is stacked by the stacking device, a loading arm for lifting and placing the seedling box stacked by the loading device on the cradle, and the product A transfer mechanism is provided to move the attached arm up and down and move horizontally to a predetermined position of the carriage, and the loading device stacks the seedling boxes stacked in the number of stacked layers on the upper side and stacks a plurality of times. Thus, there is known a stacking facility in which a seedling box is configured to be stacked on the number of sheets to be stacked and provided with a movable arm that is movable in the horizontal direction and grips the seedling box (for example, see Patent Document 1).

Japanese Patent No. 4326352

  According to the above background art, the stacking apparatus stacks the seedling boxes stacked on the upper side of the stacking number on the upper side, and stacks the seedling boxes on the stacked number of times. The nursery box and the nursery box to be stacked on it must be aligned and the stacking posture of the nursery box must be properly maintained with high accuracy.

  It is an object of the present invention to improve work efficiency while maintaining good stacking posture of a seedling box and thus transfer accuracy in a stacking facility.

In order to solve the above problems, the present invention has taken the following technical means.
That is, the invention according to claim 1 includes a stacking device (117) for lifting a seedling box (C) transported by the seedling box transporting conveyor (103) from below and stacking the seedling boxes in a predetermined number of stacks, and the stage A stacking device (118) that holds the seedling boxes (C) stacked by the stacking device (117), moves laterally and stacks the seedling boxes (C) to a predetermined number, and the stacking device (118) A loading arm (119) for placing the seedling box (C) and a transfer mechanism (120) for moving the loading arm (119) vertically and laterally to a predetermined position are provided, and a loading device (118 ) Is configured to stack the seedling boxes (C) on the number of stacked sheets by stacking the seedling boxes (C) stacked in the stacked number on the upper side and stacking a plurality of times. A movable arm (126) for holding the seedling raising box (C), and a side with the movable arm (126) To the side of the seedling box (C) that the movable arm (126) grips and the side of the nursery box (C) that has already been loaded. It was set as the stacking equipment which provided the control tool (125) which contacts and controls the position of a seedling box (C).

  Further, in the invention according to claim 2, the movable arm (126) moves toward the seedling box (C) and holds the seedling box (C) stacked, and then the movable arm (126) moves to the seedling box (C ) In the state of gripping the seedling box (C) and the lateral movement of the regulating tool (125) and then the side of the nursery box (C) that has already been stacked and the seedling box (C) gripped by the movable arm (126) After that, the movable arm (126) and the restricting tool (125) are moved downward to load the seedling box (C) held by the movable arm (126), and then the movable arm (126) and the restricting tool ( 125) movable to the opposite side of the nursery box (C), and then the movable arm (126) and the restricting tool (125) are moved upward and retracted from the stacked seedling box (C). 1 was used.

  Moreover, the invention which concerns on Claim 3 WHEREIN: At the time of the 1st loading of stacking the seedling box (C) piled up by the loading apparatus (118) on the upper side and stacking a plurality of times, the regulation tool (125) The stacking facility according to claim 1 or 2, which is configured not to move downward.

  In the invention according to claim 4, a protrusion (164) for supporting the nursery box (C) to be gripped from below is provided at the tip of the movable arm (126), and the protrusion (164) is provided on the movable arm. A protrusion urging tool (167) for supporting the base of (126) movably up and down and urging the protrusion (164) downward with respect to the base of the movable arm (126) is provided. The stacking facility according to any one of claims 1 to 3 is used.

  Further, in the invention according to claim 5, the contact surface on the side surface of the movable arm (126) that contacts the side surface of the nursery box (C) to be gripped is constituted by the end surface of the plate material and contacts the bottom surface of the nursery box (C) to be gripped. The contact surface of the projecting portion (164) is configured by the surface of a plate material, and the position of the contact surface on the side surface of the movable arm (126) and the position of the contact surface of the projecting portion (164) is adjustable, and the movable arm (126 The stacking facility according to claim 4, wherein the protruding portion (164) can be attached to and detached from the contact surface on the side surface.

  In the invention according to claim 6, the loading arm (119) is configured so that the seedling boxes (C) stacked by the lateral movement of the forward stroke from the normal position (H) of the carriage (111) at the predetermined position are arranged. The seedling box (C) moved to the stage (111a), moved down and stacked, was transferred onto the stage (111a), and placed by the lateral movement of the return stroke in the lowered state. It is configured to retreat from the pedestal position, and comes in contact from the front side with the conveying pusher (168) that pushes from behind to convey the trolley (111) to the predetermined position, and the trolley (111) conveyed by the conveying pusher (168). A carriage stopper (171) for holding the carriage (111) at the predetermined position is provided, the carriage stopper (171) is provided movably back and forth, and the carriage stopper (171) is biased toward the rear side, which is the carriage side. To the cart urging tool (171c) and the cart stopper (171) A trolley detector (171d) for detecting that the vehicle (111) is in contact is provided, and a predetermined time after the trolley detector (171d) detects that the trolley (111) is in contact with the trolley stopper (171). The stacking facility according to claim 5, wherein the conveying pusher (168) is conveyed and operated.

  According to the first aspect of the present invention, the regulator (125) moves downward to come into contact with the side surface of the nursery box (C) already loaded and the side surface of the seedling box (C) held by the movable arm (126). Since the position of the nursery box (C) is regulated, the nursery box (C) previously loaded and the nursery box (C) to be stacked on it are aligned so that the loading posture of the nursery box (C) is highly accurate. The seedling box (C) can be maintained properly, and the loading posture of the seedling box (C) and thus the transfer accuracy can be maintained well, and the seedling box (C) does not collapse even if the transport speed of the stacked seedling box (C) is increased. It is possible to improve the work efficiency. In particular, when stacking seedling boxes that do not fit vertically, such as wooden boxes, the upper and lower seedling boxes can be properly maintained with high accuracy, and work efficiency can be improved.

  According to the invention of claim 2, in addition to the effect of the invention of claim 1, after the movable arm (126) grips the nursery box (C) and moves laterally, the restricting tool (125) has already moved down. Since the side surface of the seedling box (C) that has been stacked and the side surface of the seedling box (C) that the movable arm (126) grips, the regulator is moved down immediately before the seedling box (C) is loaded. The movable restrictor (125) does not get in the way when the nursery box (C) is gripped or moved laterally by the movable arm (126), and as a result, the movable arm accompanying the gripping or lateral movement of the nursery box (C) The movement route (126) can be shortened, and work efficiency can be improved. Further, before stacking the seedling box (C) held by the movable arm (126), the regulator (125) is moved down to raise the seedling box (C) already stacked and the seedling held by the movable arm (126). Since the boxes (C) are aligned, the nursery boxes (C) to be stacked can be aligned smoothly. Furthermore, when the nursery box (C) that the movable arm (126) moves downward is loaded, the restricting tool (125) acts on the nursery box (C), and the posture of the raising of the nursery box is appropriate with high accuracy. Can be maintained. And since the regulation tool (125) moves to the opposite side to the nursery box (C) and retracts from the nursery box (C), the stacking posture of the nursery box (C) is changed by the retracting operation of the regulation tool (125). It is suppressed that it worsens, and the loading posture of the seedling box (C) can be appropriately maintained with high accuracy.

  According to the invention of claim 3, in addition to the effect of the invention of claim 1 or claim 2, the restricting tool (125) does not move down during the first loading, so the restricting tool (125) does not get in the way. In addition, the first loading can be performed smoothly, and work efficiency can be improved.

  According to the invention of claim 4, in addition to the effect of the invention of any one of claims 1 to 3, when the seedling box (C) is loaded by moving the movable arm (126) downward, it is already loaded. Even if the projecting part (164) comes into contact with the nursery box (C), the projecting part (164) moves up against the projecting part urging tool (167), thereby preventing the projecting part (164) from being damaged. In addition, deterioration of the loading posture of the nursery box (C) that has already been loaded can be suppressed, and the loading posture of the nursery box (C) can be appropriately maintained with high accuracy. In other words, the movable arm (126) is opposite to the nursery box (C) after the nursery box (C) gripped by the downward movement of the movable arm (126) is brought close to the already loaded seedling box (C). Since it can be moved to the side and dropped and the drop of the seedling box (C) can be reduced, the loading posture of the seedling box (C) can be properly maintained with high accuracy. In particular, seedling boxes stacked in a predetermined number of stacks (C) due to differences in the thickness of the seedling box at the top and bottom of different types of seedlings, the amount of soil filled in the seedling box and the leveling condition, etc. ) Because the height of the whole seedling box (C) stacked at the predetermined height and the total number of stacked seedlings (C) is different, the protrusion (164) comes into contact with the seedling box (C) that has already been stacked. Yes.

  According to the invention of claim 5, in addition to the effect of the invention of claim 4, the contact surface of the side surface of the movable arm (126) in contact with the side surface of the nursery box (C) to be grasped is constituted by the end surface of the plate material. The contact area of the contact surface with the nursery box (C) can be reduced, and adhesion of soil to the contact surface can be suppressed. Moreover, since it comprised so that the position of the said contact surface of the side surface of a movable arm (126) and the said contact surface of a protrusion part (164) was adjustable, according to the kind of seedling box (C), for example, seedling box (C) The side of the movable arm (126) and the protruding portion (164) come into contact with the rib portion of the arm to prevent the seedling box (C) from being unstablely supported, and the seedling box (C) is stably supported. It is possible to maintain the loading position of the nursery box (C) properly with high accuracy. Furthermore, the protrusion (164) can be replaced according to the wear of the protrusion (164) and the type of seedling box.

  According to the invention of claim 6, in addition to the effect of the invention of claim 5, the carriage (111) is not sandwiched while being applied with pressure by the carriage stopper (171) and the conveying pusher (168) at a predetermined position. The seedling box (C) can be supplied to the appropriate position of the carriage (111) by the loading arm (119), the transfer accuracy of the seedling box (C) can be maintained well, and the work efficiency can be improved. .

Layout diagram of sowing facility Overall side view of sowing equipment Plan view of stacking equipment Side view of stacking equipment Front view of stacking equipment The figure which shows an eccentric cam and a support plate (A: Front view, B: Side view) Front view showing the periphery of the protrusion Diagram showing shock absorption cylinder and return cylinder Perspective view showing the state of loading on the loading arm divided into multiple times for easy understanding The perspective view which shows the state which mounts a seedling box on a budding cart (A: supply form to the mounting position of the back side, B: supply form to the mounting position of the near side) The figure which shows the first example of the cultivation facility The figure which shows the characteristic part of the second example of the cultivation facility The figure which shows the structure which moves a heating piping laterally (A: front view, B: top view) The figure which shows the characteristic part of the 3rd example of a cultivation facility (A: At the time of normal cultivation, B: At the time of work) Side view showing part of the opening / closing mechanism of the blackout curtain Plan view showing a part of the opening / closing mechanism of the blackout curtain Plan view showing a part of hot water disinfection equipment Side view showing part of hot water disinfection equipment Side view showing part of transfer device and lowering device Side view showing part of the lifting device Side view showing part of the lifting device and part of the return device Side view showing seed bag supply position Side view showing reversing cam and guide plate Cross-sectional side view showing cooling tank Plan view showing cooling tank Side view showing drainer Diagram showing hot water and cooling water supply path Process diagram of drying and shipping process Side view explaining the inside of the drying device Front view showing work cart

One embodiment of the present invention will be described below. The following embodiment is merely an embodiment and does not restrict the scope of the claims.
FIG. 1 is a plan layout view of a sowing facility. The seedling raising facility has a seedling box storage area on the second floor, and the seedling box C of the seedling box storage area is sequentially supplied one by one to the seeding facility 102 installed on the first floor by the seedling box supply device 101. The seeding facility 102 has the structure shown in FIG. 2 and a bed soil supply device 104 for putting down soil in the seedling box along with the seedling box transport conveyor 103 for transporting the seedling box C in a certain direction, and for paddy rice. An irrigation device 105, a seeding device 106 for sowing seed pods on the floor soil, a covering soil supply device 107 for covering soil, and an irrigation device 108 for vegetables are provided. In addition, a leveling unit 109 for leveling the floor soil supplied to the seedling box is provided on the lower side of the seedling box transporting side of the floor soil supply device 104. When sowing the vegetable seeds, the irrigation device 108 for vegetables is operated, and the irrigation is performed after the soil is supplied by the soil covering supply device 107. The seedling boxes sowed by the sowing facility 102 are stacked on the pallet or cart 111 by a predetermined number of stages by the stacking facility 110. Then, the stacked seedling boxes are carried into the germination chamber 112 and germinated. The stacked seedling boxes sprouting in the budding room 112 are stacked on the greening cart 146 by the seedling box transfer device 113, and the greening cart 146 is carried into the greening chamber 200 in which the temperature is controlled and brought into a predetermined size. Raise seedlings until they grow. The budding chamber 112 and the greening chamber 200 are each provided with three chambers.

  In accordance with a decrease in the seed soot stored in the sowing device 106 of the sowing facility 102, a seed soot supply conveyor 115 that automatically supplies seed soy from the seed soot container 114 to the sowing device 106 is provided. This seeding and seedling facility has a plurality (five) of soaking tanks 116, and the sowing seed container 114 in a state where the sowing seeds are contained is submerged in the soaking seed tank 116, which is filled with water, so that seed sprouting is promoted. After that, the seed is supplied to the sowing device 106. The water supplied to the seed water tank 116 is electrolyzed water (disinfectant) generated by electrolysis, and seeds are also disinfected in this soaking process. Therefore, the soaking water tank 116 constitutes soaking equipment and seed disinfection equipment. Strong acidic water and strong alkaline water generated as the electrolyzed water are stored in an acidic water tank 201 and an alkaline water tank 202 provided in a common greening chamber 200 to maintain a desired temperature. The water supplied to the immersion water tank 116 can be appropriately selected from strong acidic water or strong alkaline water according to the amount of storage in the tanks 201 and 202. Ideally, strong alkaline water is distributed and supplied, and when the soaking process is completed, the strongly acidic water and strong alkaline water in each soaking tank 116 are mixed and neutralized, and the neutralized water is drained. is there. The sowing and seedling facility is also provided with a germination facility 204 that can accommodate the seed vat container 114, and seeds can be germinated in the seed vat container 114.

  Next, the stacking facility 110 will be described. This stacking facility 110 is arranged at the terminal end of the seedling box transport conveyor 113, and a stacking apparatus 117 for lifting and stacking the seedling boxes C transported by the seedling box transport conveyor 113 from below, and the stacking apparatus A stacking device 118 that holds the seedling box C stacked in 117 and moves laterally and stacks it, a loading arm 119 on which the seedling box C is stacked by the loading device 118, and the loading arm 119 up and down And a transfer mechanism 120 that moves and moves to a predetermined position.

  A pneumatic shock absorbing cylinder 156 that decelerates and stops the nursery box C that is being transported is provided at the end of conveyance of the nursery box conveyor 103. The nursery box C being conveyed hits the cylinder rod 156a of the shock absorbing cylinder 156 and the cylinder rod 156a is pushed in, so that the impact of the conveyance is absorbed and the conveying speed of the nursery box C gradually decreases, and the operating stroke of the cylinder rod 156a The nursery box C stops at the end. Thereby, conveyance of the seedling box C can be stopped while preventing the soil in the seedling box C from being soiled. The pneumatic circuit of the shock absorbing cylinder 156 is a closed circuit in which one side of the piston 156b that operates integrally with the cylinder rod 156a and the cylinder chamber 156c on the other side are connected by an air pipe 157. A flow restrictor 158 for limiting the flow rate is provided. The cylinder rod 156a pushed in while receiving the resistance force by the flow restrictor 158 is returned to the initial state of being protruded by a return rod 159a that is operated by a pneumatic return cylinder 159 provided separately. The air pressure from the compressor 160 is supplied to the return cylinder 159 via the electromagnetic air pressure switching valve 161, and the return rod 159a operates. The U-shaped return member 159b provided at the tip of the return rod 159a pushes the tip 156d of the cylinder rod 156a, thereby forcibly returning the cylinder rod 156a. The return rod 159a returns to the original position as soon as the cylinder rod 156a is returned, and does not hinder the pushing of the cylinder rod 156a due to the conveyance of the seedling box C. Accordingly, the next seedling box C transported by the seedling box transport conveyor 103 can be received by the cylinder rod 156a. Since the pneumatic circuit of the shock absorbing cylinder 156 is a closed circuit, the pneumatic circuit or the shock absorbing cylinder 156 is in the air as compared with the case where the pneumatic circuit is depressurized (released to the atmosphere) and the cylinder rod 156a is returned to the initial position. Therefore, the return rod 159a returns the cylinder rod 156a to the initial position while preventing the malfunction of the shock absorption cylinder 156 due to moisture and improving the durability of the shock absorption cylinder 156. Can do.

  The stacking device 117 is brought into contact with the bottom surface of the seedling box C conveyed by the seedling box transport conveyor 103 and received by the shock absorbing cylinder 156, and lifted by the eccentric cam 121. And a support plate 122 that supports the edge of the nursery box C. The eccentric cam 121 is a disk driven by the eccentric rotation shaft 123, and a total of four eccentric cams 121 are provided on the front, rear, left and right of the raising seedling box C to be lifted. The four eccentric cams 121 are driven and rotated by the same transfer, and simultaneously lift the seedling box C. Two support plates 122 are provided on the left and right sides, and are urged to the left and right by springs, and are pushed by the protrusions 124 a of the drive cam 124 by driving of the drive cam 124 that rotates integrally with the rotating shaft 123 of the eccentric cam 121. It moves toward the nursery box C side (left and right inside). Therefore, the support plate 122 is configured to move from the left and right outer sides toward the seedling box C side (left and right inner sides) and project below the edge of the seedling box C.

  The stacking device 118 is configured to hold and move the seedling boxes C stacked in a predetermined number (10), and holds the seedling boxes C with a pair of movable arms 126. The stacking device 118 stacks the seedling boxes C stacked on the stacking arm (119) on the stacking arm 119 in order and repeatedly stacks the seedling boxes C a plurality of times (three times in total), thereby raising the seedlings. The box C is configured to be stacked on a predetermined number of stacked sheets (a total of 30 sheets). The pair of movable arms 126 are configured to come into contact with the side surface on the long side of the seedling box C, and two sets are provided on the front and rear sides. In addition, a restriction tool 125 that is a restriction plate that restricts the position of the seedling box C in contact with the side surface on the long side of the seedling box C is provided at a total of four positions on the front and rear, left and right of the seedling box C. The restricting tool 125 is disposed between two sets of movable arms 126 provided in the front-rear direction. The movable arm 126 moves up and down by a vertical movement motor 127 and moves laterally via a loading rack 129 driven by a horizontal movement motor 128, and around an upper front-rear rotation shaft 126 a by a pneumatic actuator 162. It is configured to rotate in the lateral direction. The restricting tool 125 is configured to move up and down, laterally move and rotate together with the movable arm 126 by a vertical movement motor 127, a lateral movement motor 128 and a pneumatic actuator 162. Further, the restricting tool 125 is configured such that the lower end moves downward to the lower side than the distal end of the movable arm 126 by the downward moving pneumatic cylinder 163 attached via the movable arm 126. In the state where the lowering pneumatic cylinder 163 is not moved downward, the lower end of the restrictor 125 is slightly higher than the lower end of the movable arm 126.

  A protruding portion 164 that protrudes toward the seedling box C for supporting the nursery box C to be held from below is provided at the tip of the movable arm 126. The projecting portion 164 is configured by a front-view L-shaped plate material including a vertical portion 164a and a horizontal portion 164b, and a contact surface in contact with the bottom surface of the seedling box C gripped by the upper surface (surface) of the horizontal portion 164b. Become. The projecting portion 164 is fixed to the lower end of a slide member 165 that is U-shaped in a plan view and is long in the vertical direction, by a fastening bolt via the vertical portion 164a. Therefore, it is possible to remove the tightening bolt and remove the protrusion 164 from the slide member 165. The slide member 165 is inserted into a vertically long slide guide 166 having a rectangular insertion hole so as to be slidable up and down, and a lower portion is exposed from the slide guide 166. Note that the slide guide 166 is a base portion of the movable arm 126. A slide member-side spring receiving plate 165a surrounding the outer periphery of the slide member 165 is fixed to an appropriate position of the slide member 165 in an exposed portion from the slide guide 166, and the slide guide 166 is positioned at an appropriate position below the slide guide 166. A slide guide-side spring receiving plate 166a that surrounds the outer periphery is fixed, and a projecting portion that is a compression spring is provided on the outer periphery of the slide member 165 and the slide guide 166 between the slide member-side spring receiving plate 165a and the slide guide-side spring receiving plate 166a. A biasing tool 167 is provided. Therefore, the slide member 165, that is, the protrusion 164 is urged downward with respect to the slide guide 166 by the protrusion urging tool 167. Therefore, the protrusion 164 and the slide member 165 can move up against the protrusion urging tool 167. A stopper portion 165b provided at the upper part of the slide member 165 is inserted into a vertical guide hole provided in the slide guide 166 to restrict the slide member 165 from falling below the lower limit. In addition, two side contact plates 165 c extending vertically are fixed (welded) to the exposed portion of the slide member 165. The end surface of the side surface contact plate 165 c becomes a contact surface on the side surface of the movable arm 126 that contacts the side surface of the seedling box C held by the movable arm 126. The movable arm 126 is configured to be movable back and forth along the rotation shaft 126a. The end surface of the side contact plate 165c (the contact surface of the side surface of the movable arm 126 with the seedling box C) and the protrusion 164 ( The position of the projecting portion 164 on the contact surface with the seedling box C) can be adjusted.

  The movable arm 126 and the restricting tool 125 are first moved down by the vertical movement motor 127, rotated inward by the pneumatic actuator 162, grip the stacked seedling boxes C, and move up the gripped seedling boxes C. Lift up. Further, the seedling box C that is laterally moved and gripped by the lateral movement motor 128 is moved onto the loading arm 119. Thereafter, the movable arm 126 and the restricting tool 125 are moved down to a position slightly above the position where the seedling box C is to be stacked. Thereafter, when there is a seedling box C already loaded on the loading arm 119, that is, other than the first time (second and third times) of repeatedly loading on the loading arm 119 a plurality of times (3 times in total). When stacking, the lowering pneumatic cylinder 163 moves the regulating tool 125 downward until the lower end of the regulating tool 125 reaches the height of the uppermost nursery box C already loaded on the loading arm 119. When the tool 125 contacts the side surface of the uppermost nursery box C, the uppermost nursery box C is regulated to an appropriate position. In addition, in the case of performing the first loading of the loading arm 119 repeatedly (a total of three times), the lowering pneumatic cylinder 163 does not operate and the restricting tool 125 is in the normal upward position. It remains. Then, the movable arm 126 and the restricting tool 125 are rotated outward to release the holding of the nursery box C, and the held nursery box C is dropped and supplied onto the already grown seedling box C. Thereafter, the movable arm 126 and the restricting tool 125 are moved up by the up-and-down moving motor 127, and further the restricting tool 125 is moved up by the downward moving pneumatic cylinder 163, and the nursery box C in which the movable arm 126 and the restricting tool 125 are stacked. Retreat upward from

  The loading arm 119 includes two front and rear arm bodies 119a and a mounting plate 119b provided at the front end of the arm body 119a. The loading arm 119 moves left and right via a transfer rack 129 driven by a left and right movement motor 192. It moves and moves up and down by a pantograph mechanism 130 provided below. Then, when the loading device 118 is stacked three times and stacked up and down for a total of 30 seedling boxes C on the loading arm 119, the loading arm 119 is moved to the side of the forward stroke by driving the left and right movement motor 192. The pramograph mechanism 130 moves down to the inside of the carriage 111 that is moved and waits, and the nursery box C is moved to the rail-like stage 111a of the carriage 111 by the pantograph mechanism 130, and then the left and right movement motor 128 is driven. As a result, the loading arm 119 moves laterally in the backward stroke to the retracted position, and is moved upward from the retracted position to the original normal position by the pantograph mechanism 130. The carriage 111 is configured to place the seedling boxes C stacked at four placement positions in the front, rear, left, and right directions, and appropriately moves so that the placement position reaches the position facing the loading arm 119. . Accordingly, the loading arm 119 loads the seedling box C on the placement position on the near side and the placement position on the back side of the loading arm 119. The cart 111 is configured to travel on a cart travel rail 131 provided in parallel along the nursery box transport conveyor 103.

  When loading the stacking arm 119 on the mounting position on the back side, the seedling box C stacked in the forward movement from the normal position H is moved onto the mounting table at the mounting position on the back side. Then, the nursery box C that has been moved down and stacked is transferred onto the stage. The lateral movement sensor 132 that detects that the rear placement position has moved away from the rearing seedling box C and has reached the position in the carriage 111 in the middle of the backward movement is moved to a position along the movement path of the loading arm 119. Provided. When it is detected that the lateral movement sensor 132 has reached the above-mentioned position during the lateral movement in the backward stroke, it is moved upward by the pantograph mechanism 130 while returning to the normal position. In addition, when stacking on the mounting position on the near side, the nursery box C stacked in the forward movement from the normal position H is moved onto the mounting table at the mounting position on the near side and moved downward. The stacked seedling boxes C are transferred onto the platform and moved to the retreat position I by the lateral movement in the backward stroke.

  With the loading arm 119 in the retreat position I, the loading device 118 directly loads the first 10 seedling boxes C on the loading arm 119 directly. Thereafter, the loading arm 119 moves from the retracted position I to the normal position H before the loading device 118 performs the second loading. Accordingly, when the loading device 118 performs the second and third loading, the loading arm 119 is in the normal position.

  When the loading device 118 first loads the loading arm 119 (first time), the loading arm 119 in the retracted position I is lower than the gripping position J that grips the stacked seedling boxes C. . Accordingly, the movable arm 126 of the loading device 118 lifts slightly from the gripping position J after gripping the seedling box C, moves sideways and moves onto the loading arm 119, and moves down to the retracted position I. The movable arm 126 is moved outward to release the holding of the seedling box C. When the second raising seedling box C is loaded from the loading device 118 to the loading arm 119, the holding position J and the upper surface of the first raising seedling box C on the loading arm 119 are substantially the same height. Accordingly, the movable arm 126 of the stacking device 118 grips the seedling box C and floats slightly from the gripping position J, moves sideways and moves onto the loading arm 119, and reaches the upper surface of the first seedling box C. It moves slightly downward and the movable arm 126 is moved outward to release the holding of the seedling box C. When the third raising seedling box C is loaded from the loading device 118 to the loading arm 119, the upper surface of the second raising seedling box C on the loading arm 119 is higher than the gripping position J.

  Therefore, the movable arm 126 of the stacking device 118 grips the seedling box C, moves upward from the gripping position J to a position slightly higher than the upper surface of the second seedling box C, moves sideways, and moves the stacking arm 119. It moves upward, moves slightly down to the upper surface of the second seedling box C, moves the movable arm 126 outward, and releases the holding of the seedling box C.

  A transport pusher 168 that pushes and transports the carriage 111 from the rear to a predetermined position where the seedling box C is transferred by the loading arm 119 is provided at the front and rear. In addition, the description regarding conveyance of the trolley | bogie 111 including this paragraph demonstrates the conveyance lower side of the trolley | bogie 111 as a front side, and demonstrates the conveyance upper side of the trolley | bogie 111 as a rear side. The front and rear transport pushers 168 are moved back and forth along the front and rear guide rails 170 extending in the front-rear direction by the drive of the transport motor 169 being transmitted through a power transmission mechanism such as a power transmission chain. The front conveying pusher 168 is configured to convey the carriage 111 to the predetermined position, and contacts the carriage 111 conveyed by the front conveying pusher 168 from the front side to hold the carriage 111 at the predetermined position. A cart stopper 171 is provided at the front and rear. That is, when the carriage 111 is held by the carriage stopper 171 on the rear side, the loading arm 119 moves the nursery box C to the two placement positions on the front side among the four placement positions on the carriage 111 in the front-rear and left-right directions. When the carriage 111 is held by the front carriage stopper 171, the loading arm 119 is raised to the two rear placement positions of the front, rear, left and right placement positions of the carriage 111. The box C is in a state of being stacked. The carriage stopper 171 is configured to hold the position of the carriage 111 by contacting the front end of the carriage 111 with the head of the mounting bolt 171a fixed to the plate, and the plate rotates about the stopper rotation shaft 171b in the vertical direction. It is configured to move forward and backward, and is urged to rotate to the rear side, which is the trolley 111 side, by a trolley urging tool 171c that is a damper. A cart detector 171d, which is a magnetic proximity switch for detecting that the cart 111 is in contact with the mounting bolt 171a, is provided on the plate portion near the mounting bolt 171a. The rear conveying pusher 168 moves the next bogie when the front conveying pusher 168 conveys the carriage 111 to the front side of the predetermined position where the seedling box C is transferred, and the carriage 111 does not exist at the predetermined position. 111 is transported until just before the two placement positions on the front side among the four placement positions in the front, rear, left and right directions reach the predetermined position.

  That is, when the transporting tool 168 on the rear side transports the carriage 111 until just before the two mounting positions on the front side among the four mounting positions on the front, rear, left and right reach the predetermined position, the transporting tool 168 on the front side. Takes over the carriage 111 and conveys it by the control device until the carriage detection tool 171d detects that the front end of the carriage 111 has come into contact with the carriage stopper 171 on the rear side. Then, the conveying operation is stopped. As a result, the carriage 111 is transferred while pushing the rear carriage stopper 171 forward, and the carriage urging tool 171c, which is a damper, is extended so that the rear carriage stopper 171 biases the carriage 111 rearward. Therefore, the carriage 111 is pressed and sandwiched between the rear carriage stopper 171 and the front conveying pusher 168, and the carriage 111 can be reliably held at a desired position. Then, when the loading of the seedling box C to the predetermined position is completed by the loading arm 119, the carriage 111 is transported by the front transport pusher 168. Then, the rear cart stopper 171 is retracted from the conveyance path of the cart 111 while rotating to the front side, and when further conveyed, the front end of the cart 111 reaches the front cart stopper 171. After the front end of the carriage 111 is in contact with the front carriage stopper 171 by the control device, the conveyance operation of the front conveyance pusher 168 is continued until a predetermined time after the carriage detection tool 171d detects that the carriage 111 stops. To do. As a result, the carriage 111 is transferred while pushing the front carriage stopper 171 forward, and the carriage urging tool 171c, which is a damper, is extended so that the front carriage stopper 171 biases the carriage 111 rearward. The carriage 111 is pressed between the front carriage stopper 171 and the front conveying pusher 168, and the carriage 111 can be reliably held at a desired position. When the loading arm 119 completes the transfer of the seedling box C to the predetermined position, the carriage 111 is conveyed by the front conveying pusher 168 until it is completely removed from the predetermined position. Then, since the transporting tool 168 on the front side transports the carriage 111 to the front side from the predetermined position where the seedling box C is transferred, the carriage 111 does not exist at the predetermined position. However, the next carriage 111 is transported until just before the two placement positions on the front side among the four placement positions of the front, rear, left, and right totals reach the predetermined position. Hereinafter, the carriage 111 is sequentially conveyed by repeating the above-described conveyance process. In addition, the said predetermined time in the action | operation of the conveyance pushing tool 168 becomes a structure which can be adjusted with the adjustment switch input into a control apparatus.

  It should be noted that the front and rear transport pushers 168 have different vertical positions so that they do not interfere with each other, and the front and rear guide rails 170 also have different vertical positions. The front and rear guide rails 170 partially overlap in the front-rear direction so that the front and rear transport pushers 168 can take over and transport the carriage 111. The carriage stopper 171 is configured to be pushed by the carriage 111 being conveyed and retracted from the conveyance path of the carriage 111. Similarly, the conveyance pusher 168 can also be pivoted forward around the pusher pivot axis in the vertical direction. Provided, when the transport pusher 168 after transporting the carriage returns to the rear side, it interferes with the next cart 111 on the transport path, but the transport pusher 168 rotates to the front side to It is configured to retreat from the conveyance path.

  As described above, the stacking facility 110 includes the stacking device 117 that lifts and stacks the seedling boxes C transported by the seedling box transport conveyor 103 from below, and the seedling boxes C stacked by the stacking device 117. A stacking device 118 for gripping, laterally moving and stacking, a stacking arm 119 on which the seedling box C is stacked by the stacking device 118, and moving the stacking arm 119 up and down and laterally to a predetermined position. A transfer mechanism 120 is provided. Therefore, since the seedling box C is directly loaded on the loading arm 119 by the loading device 118, it is possible to improve work efficiency while maintaining good transfer accuracy.

  Further, the stacking device 118 is configured to divide the stacked seedling boxes C into a plurality of times and stack them vertically and load them onto the loading arm 119. The seedling boxes C are stacked in a lower position than the gripping position J and in a form stacked in a higher position than the gripping position J. Are stacked from the gripping position J through the descending process, and stacked in the upper position, the stacked seedling boxes C are stacked from the gripping position J through the ascending process. Therefore, in the form of stacking to the lower position, the stacked seedling boxes C are stacked from the gripping position J through the descending process, and in the form of stacking to the upper position, the stacked seedling boxes C are gripped to the gripping position J. As a result, the height of the loading position in multiple loadings is as close as possible to the height of the gripping position J, and the transfer path for multiple loadings is shortened overall. Work efficiency can be improved.

  Further, the loading arm 119 moves the seedling box C stacked in the forward movement from the normal position onto the platform 111a at the predetermined position, and moves the seedling box C down and stacked. The loading device 118 is moved to the retreat position J by the lateral movement in the backward stroke while being moved down, and the loading device 118 first raises the seedlings on the loading arm 119. When loading the box C, the loading arm 119 is directly loaded on the loading arm 119 in the retracted position J, and the loading arm 119 is moved up to the normal position H before the next seedling box C is loaded on the loading arm 119. It is configured. Therefore, when the seedling box C is first loaded on the loading arm 119, it is directly loaded on the loading arm 119 in the retracted position J, so that the loading arm 119 moves up from the retracted position J to the normal position H. The seedling box C can be loaded without waiting for the improvement of work efficiency. The time required for the stacking device 117 to stack a total of 10 seedling boxes C and the stacking device 118 to stack the first seedling box C on the loading arm 119 is the normal position of the loading arm 119. This is substantially the same as the required time from H to placing the seedling box C on the placement position on the near side of the carriage 111 and returning to the retreat position I.

  Further, the loading arm 119 is configured so that the seedling box C is stacked on the front side and the back side of the loading arm 119. The seedling boxes C stacked by movement are moved onto the platform 111a at the predetermined position, and the seedling boxes C stacked by moving down are transferred onto the platform 111a. When returning to the normal position H while moving upward and stacking at the position on the near side, the seedling boxes C stacked by the lateral movement in the forward direction from the normal position H are placed on the platform 111a at the predetermined position. The configuration is such that the seedling box C that has moved, moved downward and stacked is transferred onto the platform 111a, moved to the retracted position I by the lateral movement in the backward stroke, and moved upward from the retracted position I to the normal position H. Yes. Therefore, when loading at the position on the back side, the loading arm 119 returns to the normal position H while moving upward by the lateral movement in the backward stroke, so that the return of the loading arm 119 to the normal position H can be accelerated. This improves work efficiency.

  The stacking facility 110 is stacked by the stacking device 117 that lifts the seedling box C transported by the seedling box transport conveyor 103 from below and stacks the seedling boxes in a predetermined number of stacks. A stacking device 118 that holds the seedling box C, moves laterally and stacks the seedling box C in a predetermined number, a stacking arm 119 on which the seedling box C stacked by the stacking device 118 is placed, and the stacking arm 119 Is provided by moving the seedling boxes C stacked on the upper side a plurality of times by stacking the seedling boxes C on the upper side. The seedling box C is stacked on the number of sheets to be stacked, a movable arm 126 that is movable in the lateral direction and grips the seedling box C, is movable in the lateral direction together with the movable arm 126, and from the tip of the movable arm 126. By moving down to the lower level Already provided restricting mechanism 125 side and the movable arm 126 of the nursery box C which gave a product that regulates the position of contact with the side surface of the nursery box C nursery box C to grip.

  Therefore, when the restricting tool 125 moves down, the position of the seedling box C is regulated by contacting the side surface of the seedling box C that has already been loaded and the side surface of the seedling box C that is held by the movable arm 126. The seedling box C attached and the seedling box C to be stacked on it can be properly maintained in a high accuracy and properly maintained in the nursery box C, and the loading attitude of the nursery box C and the transfer accuracy can be maintained well. Even if the transport speed of the stacked seedling boxes C is increased, the seedling boxes C can be prevented from collapsing, and the work efficiency can be improved. In particular, when stacking seedling boxes that do not fit vertically, such as wooden boxes, the upper and lower seedling boxes can be properly maintained with high accuracy, and work efficiency can be improved.

  In addition, the movable arm 126 moves toward the seedling box C and grips the stacked seedling boxes C. Thereafter, the movable arm 126 moves up and moves sideways while holding the seedling box C, and then the regulating tool 125. Comes into contact with the side surface of the seedling box C that has already been loaded and the side surface of the seedling box C that the movable arm 126 holds, and then the movable arm 126 and the regulating tool 125 move down to raise the seedling that the movable arm 126 holds. A configuration in which the box C is loaded, and then the movable arm 126 and the regulating tool 125 are moved to the opposite side of the nursery box C, and then the movable arm 126 and the regulating tool 125 are moved upward and retracted from the stacked seedling box C. It is said.

  Therefore, after the movable arm 126 grips the seedling box C and moves laterally, the restricting tool 125 moves down to contact the side surface of the seedling box C that has already been loaded and the side surface of the seedling box C that the movable arm 126 grips. Therefore, since the restricting tool is moved down immediately before the seedling box C is loaded, it does not get in the way when the lowered control tool 125 grips the seedling box C by the movable arm 126 or moves laterally. The moving path of the movable arm 126 accompanying the gripping or lateral movement of the box C can be shortened, and the work efficiency can be improved. Further, before the nursery box C held by the movable arm 126 is stacked, the nursery box C that has already been stacked by the lowering of the restricting tool 125 is aligned with the nursery box C that the movable arm 126 holds. C can be aligned smoothly. Further, when stacking the nursery box C that the movable arm 126 moves down and holds, the regulating tool 125 acts on the seedling box C, and the stacking posture of the seedling box can be properly maintained with high accuracy. And since the control tool 125 moves to the opposite side to the seedling box C and retracts from the seedling box C, it is suppressed that the loading posture of the seedling box C is deteriorated by the retracting operation of the control tool 125, The loading posture of the box C can be properly maintained with high accuracy.

Moreover, it was set as the structure which the regulator 125 does not move down at the time of the 1st loading of the seedling boxes C piled up by the loading apparatus 118 on the upper side and stacking several times.
Therefore, since the restricting tool 125 does not move down during the first loading, the first loading can be performed smoothly without the restricting tool 125 getting in the way, and the work efficiency can be improved.

  In addition, a protrusion 164 for supporting the nursery box C to be grasped from below is provided at the tip of the movable arm 126, and the protrusion 164 is supported so as to be movable up and down with respect to the base of the movable arm 126. A protrusion urging tool 167 that urges 164 downward with respect to the base of the movable arm 126 is provided.

  Therefore, when the seedling box C is loaded by the downward movement of the movable arm 126, even if the projecting portion 164 contacts the seedling box C that has already been loaded, the projecting portion 164 moves up against the projecting portion biasing tool 167. Therefore, it is possible to prevent damage to the projecting portion 164 and to prevent the stacked posture of the seedling box C that has already been stacked from being deteriorated, so that the stacked posture of the seedling box C can be properly maintained with high accuracy. In other words, it is possible to move the movable arm 126 to the opposite side of the nursery box C and supply it by dropping it after the nursery box C gripped by the downward movement of the movable arm 126 is brought close to the nursery box C already loaded. Since the drop of the seedling box C can be reduced, the loading posture of the seedling box C can be properly maintained with high accuracy. In particular, the entire seedling box C stacked in a predetermined number of stacks due to differences in the thickness of the seedling box at the top and bottom of the different types of seedlings, the amount of soil filled in the seedling box and the leveling condition, etc. The height of the seedling box C and the height of the whole seedling box C stacked at a predetermined number of stacks are different, so that the protruding portion 164 can be brought into contact with the seedling box C that has already been stacked.

  Further, the contact surface of the side surface of the movable arm 126 that contacts the side surface of the nursery box C to be gripped is configured by the end surface of the plate material, and the contact surface of the protrusion 164 that contacts the bottom surface of the nursery box C to be gripped is configured by the surface of the plate material. The position of the contact surface of the side surface of the movable arm 126 and the position of the contact surface of the projection portion 164 can be adjusted, and the projection portion 164 can be attached to and detached from the contact surface of the side surface of the movable arm 126.

  Therefore, since the contact surface of the side surface of the movable arm 126 in contact with the side surface of the nursery box C to be gripped is constituted by the end surface of the plate material, the contact area of the contact surface to the seedling box C can be reduced, and the soil to the contact surface can be reduced. Adhesion can be suppressed. Further, since the position of the contact surface on the side surface of the movable arm 126 and the position of the contact surface of the projecting portion 164 are adjustable, the movable arm 126 can be placed on the rib portion of the seedling box C, for example, depending on the type of the seedling box C. Can avoid the unstable support of the seedling box C due to contact with the side surface and the protruding portion 164, and can stably support the seedling box C and maintain the loading position of the seedling box C accurately with high accuracy. it can. Furthermore, the protrusion 164 can be replaced according to the wear of the protrusion 164 and the type of seedling box.

  Further, the loading arm 119 moves the seedling boxes C stacked in the forward movement from the normal position H onto the platform 111a of the carriage 111 at the predetermined position, and moves down to be stacked. The nursery box C is transferred onto the platform 111a, and is retracted from the platform position by the lateral movement of the backward movement in the lowered state, and the conveyance pusher that pushes the carriage 111 to the predetermined position by pushing from behind. An exit tool 168 and a carriage stopper 171 that contacts the carriage 111 conveyed by the conveying pusher 168 from the front side to hold the carriage 111 at the predetermined position are provided, and the carriage stopper 171 is provided movably back and forth. A carriage urging tool 171c that urges the stopper 171 to the rear side, which is the carriage side, and a carriage detection tool 171d that detects that the carriage 111 is in contact with the carriage stopper 171 are provided, and the carriage detection tool 171d Carriage 111 has a configuration in which a conveying operation of conveying pusher 168 from the detection of the contact until after a predetermined time path 171.

  Therefore, it is possible to securely hold the carriage 111 so as not to be displaced while applying pressure with the carriage stopper 171 and the conveying pusher 168 at a predetermined position, and the seedling box C can be supplied to an appropriate position of the carriage 111 by the loading arm 119. The transfer accuracy of the seedling box C can be maintained satisfactorily and the work efficiency can be improved.

  In addition to raising seedlings in the greening room 200, plants can be cultivated in a cultivation facility 150 such as a greenhouse. The cultivation facility 150 will be described as a first example. In the cultivation facility 150, for example, a plurality of cultivation beds 151 for cultivating tomatoes are arranged in a row to form a plurality of cultivation strips 152, and a passage 153 is provided between each cultivation strip. Is provided. In addition, the channel | path 153 is good also as a structure provided only between arbitrary cultivation strips. A heating pipe 154 that heats the cultivation facility 150 by flowing hot water over the passage 153 is provided, and a heating device that supplies hot water from a heating boiler is provided in the heating pipe 154. The heating pipe 154 also serves as a traveling rail for the work carriage 172. Each cultivation bed 151 is made of rock wool, on which 2 to 3 rock wool cubes are placed, and one plant is transplanted to each rock wool cube to produce a plurality of plants (2 to 3 strains). It is configured to grow. The cultivation bed 151 is supported by being suspended from the ceiling via a suspension wire (suspending tool) 155. Under each cultivation bed 151, an underground pit 173 is provided, and the suspension wire 155 is lowered by driving a suspension lifting motor 174 so that the cultivation bed 151 can be accommodated in the underground pit 173. Thereby, the cultivation bed 151 is located on the ground during cultivation management work or during daytime when the room temperature is high, and when the room temperature is low such as at night, the cultivation bed 151 is located in the underground pit 173 to obtain a heat retaining effect in the underground. be able to. In addition, since the underground pit 173 is provided for each cultivation bed 151 and is made small, the heat retention effect can be enhanced and the running cost of heating can be reduced as compared with the conventional structure in which the entire greenhouse is underground. I can plan. Conversely, when it is desired to obtain a cooling effect in summer or the like, the cultivation bed 151 can be positioned in the underground pit 173 so as to use the underground cooling effect. At this time, the greenhouse part on the ground can be further ventilated by opening a skylight, driving a ventilation fan, or the like, thereby obtaining a further cooling effect while suppressing the running cost of cooling. Note that it is desirable to configure the cultivation facility 150 so that cultivation light such as sunlight is supplied into the underground pit 173. Further, when carbon dioxide is supplied to the plant, if the cultivation bed 151 and the plant are accommodated in the underground pit 173 and carbon dioxide is supplied only into the underground pit 173, a high concentration of carbon dioxide gas is suppressed while suppressing the amount of carbon dioxide used. Can be supplied to plants, reducing running costs and applying carbon dioxide to plants accurately.

  Moreover, when only a difference is demonstrated about the cultivation facility 150 of the 2nd example in which a part differs from the said 1st example, a passage is not formed between cultivation strips, but the planting area in a greenhouse is increased, It can be configured to increase sales. The heating pipe 154 is arranged on the ground where there is no underground pit 173 below and below the cultivation bed 151. And when an operator performs cultivation management work, the working space 220 is formed above the cultivation pit 173 by accommodating the cultivation bed 151 of at least one cultivation strip 152 in the underground pit 173, and the working space 220. The work can be performed while traveling the work carriage 172 using the above. The cultivation bed 151 is lifted and lowered together with the support frame 221 that supports the hanging wire 155 so that the work space 220 can be formed.

  In addition, a growth point cooling and heating pipe 225 for cooling and heating the growth point of the plant is provided above the cultivation bed 151, and the upper and left and right sides of the growth point cooling and heating pipe 225 are covered with a heat insulating cover 226 made of a perforated film. The effect can be enhanced. The heat insulating cover 226 is formed of a perforated film in order to suppress the occurrence of disease due to high humidity in the local area. The growth point cooling / heating pipe 225 and the heat insulation cover 226 are both moved up and down by the growth point lifting motor in accordance with the change in the height of the growth point accompanying the growth of the plant. Thereby, the air-conditioning effect to a growth point can be acquired appropriately according to the change of the height of a growth point. In summer, cold water is allowed to flow through the growth point cooling / heating pipe 225 for cooling, and in winter, warm water can be supplied to the growth point cooling / heating pipe 225 for heating.

  As an additional example, left and right moving rails 222 that move the left and right heating pipes 154 to the left and right in the direction intersecting the cultivation strip 152 are provided at both ends of the greenhouse, and the heating pipes 154 are moved to arbitrary positions such as the passage 153. As a possible configuration, the number of heating pipes 154 can be reduced. When the heating pipe 154 is moved left and right, the work carriage 172 on the heating pipe 154 is moved to a position above the left and right movement rail 222 so that the work carriage 172 does not interfere with the cultivation bed 151. Thereby, while the construction cost of the heating piping 154 can be reduced, the local part which needs heating in a greenhouse can be heated, and a running cost can be reduced. The same effect can be obtained when the heating pipe 154 is used for cooling. Since it is a suspended cultivation bed 151, the heating pipe 154 can be moved right and left using the space below the cultivation bed 151. In addition, although demonstrated as the heating piping 154 which moves left and right, it is good also as a structure which moves the traveling rail of a work trolley without an air conditioning function to right and left.

  Moreover, about the cultivation facility 150 of the third example that is partially different from the first example, only the differences will be described. The hanging wire 155 is not provided, and the cultivation bed 151 is supported from below by the gantry 223. The platform 223 is moved up and down by a pantograph type lifting mechanism 224 provided in the underground pit 173 so that the cultivation bed 151 is positioned in the underground pit 173.

  In addition, a plurality of light-shielding curtains 227 are provided for each section on the ceiling of the greenhouse, and the light-shielding curtains 227 are controlled to open and close and the degree of opening is controlled so as to perform light-shielding according to solar altitude or local light-shielding. Can do. In other words, the position where the direct sunlight does not shine depending on the position of the sun and it is not necessary to block the light so as not to close the light-shielding curtain 227 in order to improve daylighting, or when it is not desired to raise the temperature locally in the cultivation area It can be shielded from sunlight. Each light shielding curtain 227 has one end fixed to a lattice 228 on one side of the greenhouse and the other end attached to an opening / closing wire 230 that is operated by driving of an opening / closing motor 229. The open / close wire 230 is wound around the drive shaft 231 of the open / close motor 229. A magnetic clutch 232 is provided between the drive shaft 231 and the open / close wire 230 and corresponds to each open / close wire 230. Even when the opening / closing motor 229 is driven by disconnecting the clutch 232, the opening / closing wire 230 is not driven. Thus, by controlling the respective clutches 232, the respective light shielding curtains 227 can be opened and closed independently by the common opening / closing motor 229 and the drive shaft 231.

  Finally, the work cart 183 will be described. The work cart 183 can raise and lower the work table 184 on which the worker is mounted according to the height of the crop. Therefore, when working at a high place, if the work table 184 is raised, the center of gravity is raised, and if the operator gets out of the work and tries to work in that state, the work cart 183 is likely to fall over. Therefore, the fall prevention hook 185 is protruded below the hot water pipe 175, and when the work carriage 183 tries to fall, the fall prevention hook 185 is caught by the hot water pipe 175 to prevent the fall. This fall prevention hook 185 is interlocked with a foot switch (travel switch) 186 provided on the work table 184, and is rotated by an electromagnetic solenoid 187 so that it is stored when the work cart 183 travels, and the work cart 183 stops. It has a configuration that sometimes protrudes.

  By the way, the seeds sowed by the sowing device 106 of the sowing equipment 102 are sterilized in advance by the seed disinfection equipment. This seed disinfection equipment is provided with a hot water disinfection device A, a seed cooling device B, and a drying device O in order from the previous process to the subsequent process. The hot water disinfection apparatus A is provided with a hot water disinfection tank 1 serving as a box-shaped hot water tank, and a circulating transfer apparatus 3 serving as a hot water transfer apparatus for circulating and transporting a large number of seed buckets 2 is provided above the hot water disinfection tank 1. Yes. In addition, the said hot water disinfection tank 1 becomes a structure which can accommodate 11 seed buckets 2 in a row. In addition, the seed bucket 2 is configured to contain a net-like seed bag P for storing seeds for each predetermined amount.

  The circulating transfer device 3 has a lowering device 3d for lowering the seed bucket 2 which forms a large number of holes on the transfer start end side and immersing the seed bucket 2 in the hot water in the hot water disinfection tank 1, and a seed immersed in the hot water disinfection tank 1. A transfer device 3a for transferring the bucket 2, a raising device 3b for raising the seed bucket 2 immersed in the hot water disinfection tank 1 on the transfer end side, and a seed bucket 2 raised by the raising device 3b to the lowering device 3d And a return device 3c.

  The transfer device 3a includes a guide rail portion 4 that receives an edge portion 2a provided at the upper end of the seed bucket 2 from the lower left and right sides, and a chain-type transfer conveyor 5 for transferring the seed bucket 2 at the transfer start end portion. Provided. The transfer conveyor 5 includes a pressing protrusion 5a that transfers the seed bucket 2 to an appropriate position in the circuit path, and the pressing protrusion 5a is fixed to the right and left of the edge of the seed bucket 2 in the horizontal direction. The seed bucket 2 is transported by pushing it, and the seed bucket 2 on the lower transfer side is sequentially pushed by the seed bucket 2 on the upper transfer side, and the seed bucket 2 is transferred in the hot water disinfection tank 1. Yes.

  The elevating device 3b is provided with a chain type elevating conveyor 6 provided on the right and left with lifting projections 6a on which the fixed shaft 2b of the seed bucket 2 is caught at the end (transfer end) of the guide rail portion 4. Therefore, by driving the lifting conveyor 6, the fixed shaft 2b of the seed bucket 2 at the terminal end (transfer terminal) of the guide rail portion 4 is lifted by the lifting projection 6a, and the seed bucket 2 is lifted. The ascending conveyor 6 is triangular in a side view provided with an oblique movement path (circulation path) that moves in the transfer direction of the transfer device 3a as the seed bucket 2 is raised from the rising start position where the lifting protrusion 6a is caught by the fixing shaft 2b. It goes around with the round path of the shape. Further, reversing cams 7 for reversing the seed bucket 2 in the middle of the oblique movement path are provided on the left and right, and when the seed bucket 2 is lifted, the reversing cam 7 is one of the fixed shafts 2b on the edge 2a of the seed bucket 2. By pressing down on the side (the transfer direction side of the transfer device 3a, the seed cooling device B side) from the upper side, the seed bucket 2 is directed toward the seed cooling device B with the fixed shaft 2b as a fulcrum. The seed bag P in the seed bucket 2 is discharged to the cooling bucket 8 of the seed cooling device B. A guide plate 9 is provided to guide the hot water dripping from the seed bucket 2 rising or reversing from the upper end of the hot water disinfection tank 1 to the position of the reversing cam 7 to the hot water disinfection tank 1. By this guide plate 9, the hot water dripping from the seed bucket 2 is returned to the hot water disinfection tank 1 to suppress the release of heat in the hot water disinfection tank 1, and the hot water dripping into the cooling tank 10 of the seed cooling device B. Decrease in cooling efficiency can be prevented.

  The return device 3c and the lowering device 3d are configured to include a chain-type return conveyor 11 provided on the right and left with a transporting protrusion 11a on which the fixed shaft 2b of the seed bucket 2 is hooked. The conveying protrusions 11a are arranged opposite to the front and rear in the circumferential direction of the return conveyor 11, and are configured to hold the fixing shaft 2b between the front and rear protrusions 11a. Therefore, the seed bucket 2 that has been raised to the upper end of the raising conveyor 6 of the raising device 3b is moved down to the transfer start end side of the transferring device 3a after the return conveyor 11 is inherited, and then lowered to the middle of the lowering path. At the seed bag supply position r. At the seed bag supply position r, the seed bucket 2 is positioned above the hot water disinfection tank 1, and an operator supplies the seed bag P to the seed bucket 2. When the transfer device 3a is actuated to create a space for accommodating the seed bucket 2 at the transfer start end, the return conveyor 11 is actuated to lower the seed bucket 2 at the seed bag supply position r, It is dropped and supplied from the lower end of the return conveyor 11 to the hot water disinfection tank 1. Note that the seed bucket 2 waiting at the seed bag supply position r is inclined such that the lower front side contacts the guide 12 attached to the hot water disinfection tank 1 and the upper opening portion faces the front side. Thereby, an operator can supply seeds (seed bags P) to the seed bucket 2 easily. Further, since the seed bucket 2 is tilted, the seed bucket 2 can be set to a height at which the seed bucket 2 is not immersed in the hot water of the hot water disinfection tank 1 and the height of the opening of the seed bucket 2 can be set as low as possible. It is easy to supply seeds (seed bags P) to the bucket 2.

  Further, when the seed bucket 2 at the seed bag supply position r is lowered and dropped from the lower end of the return conveyor 11 to the hot water sterilization tank 1, the edge 2a of the seed bucket 2 collides with the guide rail portion 4 to generate noise. There is a possibility that the edge 2a is deformed due to the occurrence or impact. Therefore, the ridge raised on a part of the bottom surface of the hot water sterilization tank 1 so that the bottom of the seed bucket 2 contacts the bottom surface of the hot water sterilization tank 1 before the edge 2a of the seed bucket 2 collides with the guide rail part 4. If the bottom part of the seed bucket 2 that falls on the raised part first comes into contact with the raised part, the impacting sound is suppressed because the colliding part is underwater, and the edge 2a is prevented from being deformed and circulated and transferred. The transfer of the seed bucket 2 by the device 3 can be optimized.

  The transfer device 3a, the lifting device 3b, the returning device 3c, and the lowering device 3d are configured to intermittently transfer the seed bucket 2 simultaneously, but the transfer device 3a simultaneously transfers a plurality of seed buckets 2 and lifts the device 3b. The return device 3c and the lowering device 3d are each configured to transfer a single seed bucket, and the transfer device 3a, the lifting device 3b, the returning device 3c, and the lowering device 3d have different transfer pitches. The lowering device 3d stops in a state where the seed bucket 2 is transferred to the seed bag supply position r. Therefore, the transfer speeds of the return device 3c and the lowering device 3d are set faster than the transfer speed of the transfer device 3a. By reducing the number of empty seed buckets 2, the cost can be reduced and the temperature of the hot water disinfection tank 1 is increased. Since the number of empty seed buckets 2 is small, the empty seed bucket 2 is less likely to get in the way when the operator visually recognizes the disinfection status and operation status in the hot water disinfection tank 1.

  Moreover, the transfer of the seed bucket 2 that is intermittently transferred by the transfer device 3a is set so that the time in the transfer stop state is longer than the time during the transfer. Therefore, the seed bucket 2 can be retained for a long time above the hot water outlet 13 described later in the hot water disinfection tank 1, and the sterilizing effect of the seed can be enhanced. In addition, by increasing the transfer stop time of the transfer device 3a, the stop time of the ascending device 3b and the descending device 3d can be set longer so that the seed bucket 2 is stopped at the seed bag supply position r. The time can be set longer, and the seed (seed bag P) can be easily supplied to the seed bucket 2 that is stopped. In addition, the adjustment dial 89 serving as a switching device for adjusting the transfer stop time of the transfer device 3a can be switched between a long-time heating state and a short-time heating state. The total time that the seed bucket 2 is immersed in the hot water disinfection tank 1 can be changed. In addition, the period of the intermittent transfer time of the seed bucket 2 at the time of a short time heating state is set to 1/2 of the time at the long time heating state. Therefore, the disinfection time of seeds can be changed according to the seed varieties (for example, soaked glutinous rice seeds are soaked for 10 minutes, soaked glutinous rice seeds are soaked for 6 minutes, etc.). Thereby, immersion time can be changed easily, without changing the transfer speed during transfer of the transfer apparatus 3a. The transfer device 3a, the lifting device 3b, the return device 3c, and the lowering device 3d are operated by a motor 90 that is a common drive source. Accordingly, the signal is output from the adjustment dial 89 to the motor 90 via the control unit 43.

  Further, when an emergency stop occurs due to a failure or inspection of the apparatus during seed disinfection work, control is performed to measure the emergency stop time and add it to the disinfection time. Therefore, the stop time of the intermittent transfer is shortened by the transfer device 3a by the amount of the emergency stop. At this time, if the set disinfection time is reached during an emergency stop, an alarm means such as a lamp warns. Therefore, seed damage such as seed cracking can be prevented by immersing the seed in hot water longer than necessary.

  At the bottom of the hot water disinfection tank 1, hot water jets 13 are arranged at predetermined intervals, and the hot water jet 13 is positioned below the stop position of the seed bucket 2 that is stopped while being intermittently transferred. The hot water is jetted out and the hot water passes through the hole of the seed bucket 2 and acts on the seed (seed pod) accommodated in the net-like seed bag P. In addition, the bottom part of the hot water disinfection tank 1 is configured to be inclined downward toward the intermediate part in the front-rear direction, and the drainage groove 14 is configured in the intermediate part.

  If all the hot water spouts 13 are directed to the front side (seed input side), the temperature of the hot water at the front side (seed input side) in the hot water disinfection tank 1 can be increased, and the hot water disinfection is performed in the seed bucket 2. When seeds are introduced into the tank 1, it is possible to suppress the temperature drop of the hot water around the charging part, and the temperature of the hot water in the hot water disinfection tank 1 can be made uniform.

  In the subsequent process of the hot water disinfection tank 1, a seed cooling device B is provided via a supply chute 15. The seed cooling device B is provided with a seed cooling tank 10 that is long in the front-rear direction on the rear side of the supply chute 15, and the seed cooling tank 10 is provided with a plurality of cooling buckets 8 from the front side toward the rear side. The cooling bucket 8 forms a large number of holes and is supported by a horizontal axis 8a so as to be rotatable in the horizontal axis. Then, when the cooling bucket 8 rotates and reverses about the shaft 8a, the seed bag P stored in the cooling bucket 8 is stored in the next cooling bucket 8. Therefore, the cooling bucket 8 and the shaft 8a constitute a cooling transfer device. In addition, the cooling bucket 8 is rotated twice small when reversed, and the seed bag P is reliably discharged. A partition wall 16 for partitioning the inside of the tank is provided for each storage portion of each cooling bucket 8 in the cooling tank 10, and the partition wall 16 is higher on the seed discharge side (discharge chute 17 side). The cooling water supply port 18 for supplying new water to the cooling tank 10 supplies water at the end of the seed discharge side (discharge chute 17 side) in the seed cooling tank 10. The cooling water from the water supply port 18 is sequentially supplied from the discharge side section partitioned by the partition wall 16 in the cooling tank 10.

  When the sensor detects that the seed bucket 2 has been lifted by the lifting device 3b and arrived just before being reversed by the reversing cam 7, the cooling bucket 8 closest to the hot water disinfection device A is reversed and then returned to its original state. The seed bucket 2 rises and is reversed by the reversing cam 7. Thereby, the seed of the cooling bucket 8 can be supplied to the next cooling bucket 8 immediately before the seed is supplied from the seed bucket 2 to the cooling bucket 8, and the cooling time of the seed by the cooling bucket 8 can be extended. The cooling effect can be enhanced.

  The volume of the cooling bucket 8 is set larger than the volume of the seed bucket 2. Therefore, since the volume of the seed bucket 2 is small, it is possible to efficiently use hot water by reducing unnecessary portions in the hot water disinfection tank 1 where the seed bucket 2 is not supplied. Moreover, since the volume of the cooling bucket 8 is large, stirring of seeds is facilitated by air from an air outlet 19 described later, and the cooling effect is enhanced.

  In addition, an air ejection pipe 20 is provided below the cooling bucket 8 of the cooling tank 10 so that air is supplied to the air ejection port 19 by a blower 21 and the air is ejected toward the cooling bucket 8 being immersed. Yes. Moreover, the hot water disinfection tank 1 is also provided with an air ejection pipe 19, and the air ejection pipe 19 is arranged so as to intersect (orthogonally) in a plan view above the hot water pipe 22 provided with the hot water ejection port 13. . Since the hot water pipe 22 extends in the longitudinal direction (front-rear direction) of the hot water disinfection tank 1 and the hot water outlet 13 ejects hot water to the left and right, convection in the short direction (left-right direction) of the hot water disinfection tank 1 It is generated uniformly over the whole area, and the temperature unevenness in the hot water disinfection tank 1 can be suppressed. The air ejection pipe 19 is located below the various child buckets 2 to be stopped, and all the seeds can be evenly stirred by ejecting air toward the various child buckets 2.

  The blower 21 is common to the cooling tank 10 and the hot water disinfection tank 1, and a long contact tube 23 is provided before and after contacting the air jet pipe 19 of the hot water disinfection tank 1 on the outer surface (side surface) of the hot water disinfection tank 1. Air is supplied through With this contact tube 23, the temperature of the air supplied to the hot water disinfection tank 1 can be raised, and the temperature drop in the hot water disinfection tank 1 is prevented.

Next, the seed disinfection process will be described.
A net-like seed bag P containing seeds is supplied to the seed bucket 2 stopped at the seed bag supply position r in the middle of the lowering device 3d. Then, the seed bucket 2 is lowered from the seed bag supply position r into the hot water disinfection tank 1 by the lowering device 3d and immersed in the hot water.

  In the hot water disinfection tank 1, the seed bucket 2 is transferred by the transfer device 3a, and the transfer device 3a is intermittently driven. The seed bucket 2 stops at a position facing the hot water jet 13 and is exposed to the hot water sprayed in the stopped state, thereby promoting the disinfection action of the seeds in the seed bag P.

  The seed bucket 2 transferred while stopping for a set time at each hot water outlet 13 is pulled up by the lifting device 3b on the transfer end side. Then, the seed bucket 2 is reversed by the reversing device 7 in the middle of the ascending device 3 b, the seed bag P in the seed bucket 2 is discharged, passes through the supply chute 15, and enters the cooling bucket 8 on the start end side of the cooling tank 10. Supplied.

  The empty seed bucket 2 is subsequently transferred upward by the ascending device 3b, then intermittently transferred above the hot water disinfection tank 1 toward the transfer start end by the returning device 3c, and again supplied by the descending device 3d to the seed bag. Circulated and transferred to position r.

The circulating transfer device 3 may be configured to continuously drive at a low speed instead of intermittent driving.
The seed bag P supplied to the cooling bucket 8 of the cooling tank 10 is cooled by cooling water. The cooling bucket 8 is configured to be interlocked with the intermittent drive of the circulating transfer device 3, and is rotated and reversed before the next seed bag P is supplied from the hot water disinfection tank 1 to the seed cooling tank 10, and the seed is transferred to the next cooling bucket 8. The bag P is supplied and the seed bag P from the hot water disinfection tank 1 is received. That is, the seed bag P is sequentially transferred to the next cooling bucket 8 by sequentially rotating and reversing from the cooling bucket 8 on the cooling end side, and the seed bag P from the hot water disinfection tank 1 is transferred to the cooling bucket 8 on the cooling start end side. I accept it.

  Then, the seed bags P that sequentially pass through the plurality of cooling buckets 8 are discharged from the discharge chute 17 and supplied to the draining device 234. The draining device 234 includes a total of three reversing plates 235 arranged in the front and rear, a small cam 236 that operates the reversing plate 235, and a large cam 237, and is configured to drain the seed bag P from water. The inversion plate 235 is configured to rotate upward around an inversion rotation shaft 235a provided at the end of the seed bag P on the lower conveyance side. When the reversing plate 235 on the most transport side (conveyance start end) is in a normal horizontal state, the end cooling bucket 8 is set at a timing to operate, and the seed bag P passes through the discharge chute 17 and the reversing plate at the transport start end. 235. The reversing plate 235 on which the seed bag P is placed is first rotated upward by a small angle of about 15 degrees by a small cam 236 that rotates integrally with the reversing plate 235, and the seed bag P is swung to cause water to shock. Next, the large-sized cam 237 that rotates integrally with the reversing plate 235 is rotated upward by a large angle of about 90 degrees to reverse the seed bag P onto the next reversing plate 235 in the horizontal state. Place and drain the water. Thereafter, each reversing plate 235 operates in the same manner, so that the seed bags P are sequentially transported and discharged by rotating the reversing plate 235 at the end of transportation at a large angle. A rising wall 235b that rises vertically from the reversing plate 235 is provided at an appropriate position near the reversing rotation axis 235a of the reversing plate 235. When the reversing plate 235 turns upward at a large angle, the seed bag P is raised. The reverse of the seed bag P is urged by receiving the wall 235b. In addition, if the rising wall 235b is configured to rise on the reversing plate 235 while being inclined to the side away from the reversing rotation shaft 235a (the side of the seed bag P placed on the reversing plate 235), the seed bag P is easily received during reversal. Thus, the inversion of the seed bag P can be ensured. The reversing plate 235 is operated at a predetermined timing corresponding to the operation timing of the cooling bucket 8 and thus the seed bucket 2, and the draining device 234 is in accordance with the processing capacity of the seed bag P of the hot water disinfection tank 1 and the cooling tank 10. P is conveyed and processed. Accordingly, the reversing plate 235 reverses the seed bag P in accordance with the operation cycle of the cooling bucket 8 and intermittently conveys it, so that the time for placing the seed bag P can be secured and the draining can be ensured. The small reversing chain 239 and the large reversing chain 240 are driven and rotated by the driving of the reversing motor 238, and the small cam operating pin provided on the small reversing chain 239 comes into contact with the small cam 236. 236 is operated, and a large cam operating pin provided on the large reversing chain 240 contacts the large cam 237 to operate the large cam 237. With this draining device 234, the cooled seed can be drained easily, and it is possible to prevent the occurrence of disease on the seed after disinfection due to the unsanitary condition caused by the remaining water. The seed bag P discharged from the draining device 234 is dried by the drying device O in the next step.

  If a push-up cylinder 241 that pushes up the reverse plate 235 from below is provided and the horizontal reverse plate 235 is vibrated up and down with a small operation cycle by the operation of the push-up cylinder 241, the draining effect can be improved.

  This seed disinfecting device accommodates seeds in a plurality of seed buckets 2 in the hot water tank 1 for storing hot water, a cooling tank 10 for storing cooling water, and sequentially transfers the seeds to the cooling tank 10 side. Thereafter, a hot water transfer device 3 for sequentially supplying seeds to the cooling bucket 8 of the cooling tank 10 and a cooling transfer device for sequentially transferring seeds to the discharge side by the cooling bucket 8 in the cooling tank 10 are provided. A long-time heating state in which the seed supply time interval to the cooling bucket 8 of the various child buckets 2 by the device 3 is the same as the seed transfer time interval to the discharge side of the cooling bucket 8 by the cooling transfer device; Is provided with a switching device 89 for switching to a short-time warming state that is a plurality of times of the time interval for transferring seeds to the discharge side of the cooling bucket 8 by the transfer device.

  Accordingly, the seeds stored in the seed bucket 2 are processed while being sequentially transferred to the cooling bath 10 side in the hot water bath 1 by the hot water transfer device 3, and the seed bucket 2 finally cools the seed in the cooling bath 10. Supply to bucket 8. The cooling bucket 8 cools the seed while sequentially transferring the seed to the discharge side in the cooling tank 10. When the switching device 89 is switched to the warming state for a long time, every time the various child buckets 2 supply seeds to the cooling bucket 8, the cooling bucket 8 transfers seeds to the discharge side. When the switching device 89 is switched to the warming state for a short time, seeds for a plurality of seed buckets are supplied to the same cooling bucket 8, and each time seeds are supplied from the seed bucket 2 to the cooling bucket 8 a plurality of times, the cooling bucket 8 Transfer the seed to the discharge side. Therefore, the cooling time in the cooling bath 10 is constant regardless of the change in the heating time in the hot water bath 1.

  Therefore, the seeds are continuously transferred in the hot water tank 1 and the cooling tank 10 to improve efficiency, and in the varieties having a short warming time, the switching device 89 can be switched to the warming state for a short time and heated. For varieties with a long time, by switching the switching device 89 to the warming state for a long time, while preventing the seed germination failure and lack of disinfection by heating, the cooling time is kept constant regardless of the change of the heating time. A cooling effect can be obtained, and germination damage and a reduction in processing efficiency due to insufficient cooling can be prevented.

  According to this seed disinfection device, it is possible to efficiently disinfect hot water continuously while transferring a plurality of seed buckets 2 by a hot water disinfection tank 1 that is long in the front and back, and seeds are transferred from the hot water disinfection device A to the seed cooling device B. The bag P can be supplied easily.

  In addition, since the circulating transfer device 3 is intermittently driven every set time, the time for one seed bucket 2 to be immersed in hot water can be made constant, and since it is exposed to hot water at every stop, a large number of seed bags P And uniform disinfection can be performed efficiently. Since the cooling bucket 8 and the circulating transfer device 3 are driven in conjunction with each other, the time for immersing the seed bag P in the cooling water can be made constant, and a large number of seed bags P can be uniformly cooled. .

  In addition, by arranging the hot water spout 13 at every set interval over the entire hot water disinfection tank 1, temperature unevenness in the hot water disinfection tank 1 is prevented, and the seeds of the seed bag P in the seed bucket 2 penetrate the hot water. It can equalize and enhance the hot water sterilization effect. In addition, by intermittently transferring the seed bucket 2 in the hot water disinfection tank 1, seed immersion and water separation are quickened, the immersion sterilization time becomes accurate, and the sterilization effect can be enhanced. In other words, in the present embodiment, one seed bucket 2 is stopped and immersed above every 10 hot water jets 13.

Moreover, by jetting air into the cooling tank 10, the temperature rise of the cooling water in the cooling tank 10 can be prevented from being reduced, and the cooling effect can be increased.
Further, since the cooling bucket 8 is driven and reversed every predetermined time and the seed bag P is transferred while being cooled for a predetermined time in the cooling water, the cooling effect can be enhanced.

Next, the hot water and cooling water supply paths used for the hot water disinfection tank 1 and the cooling tank 10 will be described.
A hot water overflow tub 24 is provided in the hot water sterilization tank 1, and the hot water overflowed to the hot water overflow tub 24 is discharged to the outside. Further, a hot water discharge port 25 different from the hot water overflow basket 24 is provided in the hot water disinfection tank 1, and supplied from the hot water discharge port 25 to the switching valve 27 through a hot water return path 26 serving as a return path. Accordingly, the hot water discharge port 25 is switched to a state in which hot water is discharged by switching the switching valve 27.

  Then, hot water from the hot water return path 26 is supplied to a hot water supply path 28 serving as a hot water supply path via a switching valve 27. The hot water supply passage 28 is provided with a pump 29 and an in-line heater 30 serving as a heater. The in-line heater 30 has a configuration in which steam is supplied from a boiler 31 through a steam supply path 32 having various valves to obtain heat. Hot water is supplied from the hot water outlet 13 to the hot water disinfection tank 1 through the hot water supply passage 28. The temperature of the hot water in the hot water disinfection tank 1 is controlled by the hot water temperature sensor 33 to be about 60 ° C.

  Further, the cooling water overflowed from the cooling tank 10 is returned to the recovery tank 36 via a cooling water overflow rod 34 and a reflux path 35 serving as a cooling water overflow path. The cooling water in the collection tank 36 is supplied to a water supply path 37 that serves as a water supply path. The water supply path 37 includes an on-off valve 38 and supplies water to the switching valve 27. And it is the structure which supplies the water of the water supply path 37 to the hot water supply path 28 by switching of the switching valve 27.

  Therefore, the switching valve 27 is configured to switch between a water supply state in which water from the water supply passage 37 is supplied to the hot water supply passage 28 and a hot water circulation state in which hot water from the hot water return passage 26 is supplied to the hot water supply passage 28. . Further, the hot water disinfection tank 1 is provided with a water level meter 39 and the hot water temperature sensor 33 described above. Therefore, when it is input to the control unit 40 that the water level in the hot water disinfection tank 1 is lower than the set value by the detection of the water level gauge 39, the on-off valve 38 is opened by the output from the control unit 40, and the water replenishment state is established. The switching valve 27 is switched, the pump 29 is operated, the boiler 31 is operated, the in-line heater 30 is operated, and the hot water disinfection tank 1 is controlled to be replenished while heating the water in the collection tank 36. At this time, when the temperature of the hot water in the hot water disinfection tank 1 reaches a desired temperature as detected by the hot water temperature sensor 33, the boiler 29 and the in-line heater 30 are stopped and water in the recovery tank 36 is added. The hot water disinfection tank 1 is supplied without heating. When it is input to the control unit 40 that the water level in the hot water disinfection tank 1 has reached the set value by the detection of the water level meter 39, the on-off valve 38 is closed by the output from the control unit 40, and the boiler 29 and the in-line heater 30 To stop water supply. When the water level in the hot water disinfection tank 1 has reached the set value, if the control unit 40 inputs that the temperature of the hot water in the hot water disinfection tank 1 is lower than desired by the detection of the hot water temperature sensor 33, control is performed. The switching valve 27 is switched to the hot water circulation state by the output from the unit 40, the pump 29 is activated, the boiler 31 is activated, the in-line heater 30 is activated, and the hot water in the hot water disinfection tank 1 is being circulated. Heating and hot water are controlled to a desired temperature (about 60 ° C.).

  In addition, the switching valve 27 is configured to be able to switch to a mixed state in which water from the water supply passage 37 and hot water from the hot water return passage 26 are mixed and supplied to the hot water supply passage 28. Further, in the mixed state, the mixing ratio of the water from the water supply path 37 and the hot water from the hot water return path 26 can be changed and adjusted. Thereby, according to the water level and water temperature in the warm water disinfection tank 1, it can control to a desired water level and water temperature accurately. Further, even when the water level in the hot water disinfection tank 1 reaches the set value, when the hot water in the hot water disinfection tank 1 is contaminated with seeds, water from the water supply channel 37 is supplied into the hot water disinfection tank 1. The dirty hot water can be overflowed from the hot water overflow tub 24 and discharged to the outside. Therefore, when the hot water in the hot water disinfection tank 1 is dirty, the hot water in the hot water disinfection tank 1 is replaced while performing the seed disinfection operation without interrupting the seed disinfection operation and replacing the hot water. The seeds can be continuously disinfected and the work efficiency can be improved.

  According to this configuration, the heat efficiency can be improved and the amount of water used can be reduced. In particular, the water stored in the recovery tank 36 can be used to fill the hot water disinfection tank 1 at the start of the next seed disinfection operation, or can be applied to the hot water disinfection tank 1 as cleaning water when not working. it can.

  The hot water overflowing from the hot water overflow tank 24 is supplied to the two-way switching valve 91 and is discharged as it is when switched to one, and is switched to the other to be supplied to the heat radiating pipe 93 via the heating pump 92 and then discharged. . Since this heat radiating pipe 93 is arranged on the front side of the hot water disinfection tank 1, it serves as heating for the worker who supplies the seed bag P to the seed bucket 2 at the seed bag supply position r, and prevents the operator from getting cold. The environment can be improved.

  In addition to the above, a disinfecting water supply port 41 serving as a water supplying means for supplying new water to the hot water disinfection tank 1 is provided. As described above, the cooling water supply port 18 serving as a water supply means for supplying new water to the cooling tank 10 is provided. Based on the detection of the cooling water temperature sensor 42 that detects the water temperature in the cooling tank 10, the cooling water supply port 18 automatically opens and supplies water when the water temperature is higher than a predetermined temperature. It has a configuration. Thereby, the water temperature in the cooling tank 10 can be maintained at a desired temperature, and the cooling effect can be enhanced. Since the cooling water supply port 18 is configured to supply water at the end of the seed discharge side (discharge chute 17 side) in the cooling tank 10, the cooling water from the cooling water supply port 18 is supplied to the cooling tank. 10 is sequentially supplied from the discharge-side compartment partitioned by the partition wall 16 in the inside, and the temperature of the discharge-side compartment is lowered so that the seeds are sequentially conveyed to the compartment having a lower water temperature, thereby enhancing the cooling effect. be able to. Moreover, the chiller 94 which cools while circulating the water of the cooling tank 10 is also provided.

  When water is supplied to the hot water disinfection tank 1 and the cooling tank 10 at the start of work, the disinfection water supply port 41 is first opened by a signal from the control unit 43, and when there is water in the recovery tank 36, the pump 29 and inline The heater 30 is operated, the hot water disinfection tank 1 is filled with water, the cooling water tank 18 is opened by a signal from the control unit 43 while the water in the hot water disinfection tank 1 is heated by the in-line heater 30, and the cooling tank Supply water to 10. Thereby, since water is supplied to the cooling tank 10 at the same time that the water in the hot water disinfection tank 1 is heated, the preparation time until the start of work can be shortened, and work efficiency can be improved.

  A drain port 98 is provided for draining water from the hot water disinfection tank 1 and the cooling tank 10 to empty them. When the control device operates the operation end switch to complete all operations, the drainage port 98 is opened and the hot water disinfection tank 1 and the cooling tank 10 are emptied. This prevents malfunction of equipment due to freezing in the piping and propagation of germs due to residual water in the hot water disinfection tank 1 and the cooling tank 10 as well as the piping. The hot water disinfection tank 1 and the cooling tank 10 are provided with water presence / absence sensors 99 for detecting the presence or absence of each water. When the operation is started by operating the operation start switch and each water presence / absence sensor 99 detects that there is no remaining water, the drainage port 98 is closed, and then the disinfection water supply port 41 and the cooling water supply port 18 are automatically set. Open to. This prevents a delay in work start time due to forgetting to close the drain port 98 and generation of wasted water, and enables unmanned operation with high energy efficiency.

  In addition, a chiller cleaning path 95 that branches at the lower branch point of the pump 29 and the inline heater 30 in the hot water supply path 28 is provided. The chiller cleaning path 95 is further bifurcated to communicate with the suction side path and the discharge side path of the chiller 94. A hot water tank valve 96 is provided on the lower side of the branch point of the hot water supply passage 28, and a cleaning valve 97 is provided on each of the suction side passage and the discharge side passage of the chiller 94. Accordingly, when the chiller 94 is cleaned after completion of the operation, the hot water tank valve 96 is closed, one of the cleaning valves 97 is opened, and the pump 29 is driven to supply hot water to the chiller 94 to supply the chiller 94. It is possible to clean the internal piping. Note that when the temperature of the hot water for washing is low, the in-line heater 30 may be operated. Further, by switching the opening cleaning valve 97, both normal washing and back washing can be performed. Thereby, it is possible to satisfactorily wash the chiller 94 that is likely to be clogged with the soot bow and frequently needs cleaning.

  Next, the drying and storage process will be described. The seed bag P taken out from the discharge chute 17 of the cooling device B is dehydrated by the dehydrator 51, then stacked on the net container 46, drained by the net container 46, sent to the drying device O or the drying chamber 52, and dried. . Next, the net container 46 is sent to the cool room 53 to cool, and then sent to the low temperature storage 53 for storage. According to this configuration, it is possible to continuously dry, cool and store the seed bags P in the net container 46 while stacking them, thereby shortening the work time and increasing the work efficiency.

Next, the drying apparatus O will be described.
A drying tray 56 is provided on one side of the drying chamber 55, and a blower fan 57 and a budding heater 58 are provided on the other side. A warm air passage 44 is provided at the bottom of the drying chamber 55, and the air heated by the heater 58 is sent via the hot air passage 44 by the blower fan 57 and sent to the drying tray 56.

  In addition, a container sheet 48 is laid on the net container 46 and a large number of seed bags P are stacked, and the net container 46 is placed on the drying tray 56. A duct hood 47 is placed on the upper part of the net container 46, and the lower part of the duct hood 47 and the upper part of the container sheet 48 are hermetically connected by, for example, a fastener 49 to form a simple drying chamber. The upper part of 47 and the blower fan 57 are connected by a circulation passage 45 so that the drying air is circulated.

  Further, the drying cradle 56 is configured such that a drying air passage 56 a that is narrow on the lower side and gradually expands toward the entire lower surface of the upper net container 46 is partitioned by a partition plate 56 b so that the drying air flows from the hot air passage 44 toward the net container 46. Are uniformly fed and the stacked seed bags P are uniformly dried. According to the above configuration, the uniform drying air flows from the lower side to the upper side in the net container 46, and the seed bag P can be uniformly and efficiently dried.

  The cooling water overflow rod 34, that is, the cooling water overflow port, may be provided in the cooling tank 10 at the position of the end of the seed input side (hot water disinfection device A side). Thereby, in the cooling tank 10, the cooling water supply port 18 and the overflow port are arranged at the end portions facing each other, and cooling is performed while efficiently discharging the water whose temperature has been increased by cooling the seeds from the overflow port. Since the water from the water supply port 18 can be efficiently supplied into the cooling tank 10 without overflowing, the seed cooling effect can be enhanced. Further, since the water whose temperature has risen can be efficiently recovered from the overflow port into the recovery tank 36, the temperature of the water supplied from the recovery tank 36 to the hot water supply path 28 via the water supply path 37 is increased, and heating by the heater 30 is performed. The amount can be reduced, the fuel consumption of the boiler 31 can be reduced, and the running cost can be reduced. Moreover, since the partition wall 16 is configured such that the water temperature becomes higher in the section on the seed input side of the cooling tank 10, the water whose temperature has been increased can be efficiently discharged from the overflow port. Furthermore, since the supernatant water that has passed through each section can be recovered from the overflow port, clean water can be reused for hot water.

  103: seedling box transport conveyor, 110: stacking equipment, 111: cart, 111a: mounting table, 117: stacking device, 118: loading device, 119: loading arm, 120: transfer mechanism, 125: regulating tool , 126: movable arm, 164: protrusion, 167: protrusion urging tool, 168: conveying pusher, 171: trolley stopper, 171c: trolley urging tool, 171d: trolley detector, C: nursery box, H: Normal position

Claims (6)

  The seedling box (C) transported by the seedling box transport conveyor (103) is lifted from below and stacked in a predetermined number of stacks, and stacked in the stacking apparatus (117). A stacking device (118) that holds the seedling box (C), moves laterally and stacks the seedling box (C) to a predetermined number, and a stacking arm on which the seedling box (C) stacked by the stacking device (118) is placed (119) and a transfer mechanism (120) for moving the loading arm (119) up and down and laterally to a predetermined position, and the loading device (118) sets the number of stacks to the number of stacks. The nursery box (C) is stacked on the upper side and stacked a plurality of times, so that the nursery box (C) is stacked on the number of sheets to be stacked and is movable in the lateral direction to hold the nursery box (C). The arm (126) and the movable arm (126) move laterally together with the movable arm (126). 26) by moving down to a position lower than the tip of the seedling box, the side surface of the seedling box (C) already loaded and the side surface of the seedling box (C) gripped by the movable arm (126) come into contact with the seedling box (C). A stacking facility provided with a restricting tool (125) for restricting the position of the box.   The movable arm (126) moves toward the seedling box (C) and grips the stacked seedling boxes (C), and then the movable arm (126) moves up while holding the seedling box (C). Laterally, the regulating tool (125) is moved downward to come into contact with the side surface of the seedling box (C) already loaded and the side surface of the seedling box (C) held by the movable arm (126), and then the movable arm ( 126) and the restricting tool (125) are moved down to load the seedling box (C) held by the movable arm (126), and then the movable arm (126) and the restricting tool (125) are the seedling box (C). The stacking equipment according to claim 1, wherein the stacking equipment is configured to move away from the seedling box (C) in which the movable arm (126) and the restricting tool (125) are moved upward after being moved to the opposite side.   The control device (125) is configured to prevent the regulation tool (125) from moving down during the first loading of stacking the seedling boxes (C) stacked by the loading device (118) on the upper side for a plurality of times. The stacking facility according to claim 2.   A projecting portion (164) for supporting the nursery box (C) to be gripped from below is provided at the tip of the movable arm (126), and the projecting portion (164) is vertically moved with respect to the base of the movable arm (126). 4. A protruding portion urging tool (167) that supports the movable portion and urges the protruding portion (164) downward with respect to the base portion of the movable arm (126). The stacking equipment described in the paragraph.   The contact surface of the side surface of the movable arm (126) in contact with the side surface of the nursery box (C) to be gripped is constituted by the end surface of the plate material, and the contact surface of the protrusion (164) in contact with the bottom surface of the nursery box (C) to be gripped is the plate material. And the position of the contact surface of the side surface of the movable arm (126) and the position of the contact surface of the protrusion (164) can be adjusted, and the surface of the movable arm (126) protrudes from the contact surface. The stacking equipment according to claim 4, wherein the section (164) is detachable.   The loading arm (119) moves the nursery boxes (C) stacked in the forward movement from the normal position (H) onto the platform (111a) of the carriage (111) at the predetermined position, The nursery boxes (C) that have been moved down and stacked are transferred onto the platform (111a), and are configured to be retracted from the platform position by lateral movement in the backward stroke while remaining in the lowered state. A conveying pusher (168) that pushes and conveys the carriage (111) to the predetermined position, and a carriage (111) that is conveyed by the conveying pusher (168) contacts from the front side to bring the carriage (111) to the predetermined position. A carriage stopper (171) for holding the carriage, the carriage stopper (171) is provided movably back and forth, and a carriage urging tool (171c) for urging the carriage stopper (171) to the rear side of the carriage side; The carriage (111) is in contact with the carriage stopper (171). A cart detecting tool (171d) for detecting is provided, and the cart pushing tool (168) is transported until a predetermined time after the cart detecting tool (171d) detects that the cart (111) contacts the cart stopper (171). The stacking facility according to claim 5, which is configured to operate.

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