JP2011244763A5 - - Google Patents

Description

Stacking equipment

  The present invention relates to a stacking facility.

  A stacking device that lifts and stacks seedling boxes transported by a seedling box transport conveyor from below, a stacking device that grips and horizontally moves the seedling boxes stacked by the stacking device, and the product There is known a stacking facility provided with a cradle on which a seedling box is stacked by the attaching device, and a transfer mechanism for transferring the seedling box on the cradle to a predetermined position of the transport carriage by the loading arm (for example, Patent Document 1).

Japanese Patent No. 4326352

  According to the above-mentioned background art, the stacked seedling boxes are loaded onto the cradle and transferred from the cradle to the predetermined position by the loading arm, so that the seedling box is transferred via the cradle. It is conceivable that the accuracy deteriorates.

  An object of the present invention is to improve work efficiency while maintaining good 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) that lifts and stacks seedling boxes (C) conveyed by the seedling box transport conveyor (103) from below, and the stacking device (117). A stacking device (118) for holding the stacked seedling boxes (C), laterally moving and stacking, and a stacking arm (119) on which the seedling boxes (C) are stacked by the stacking device (118); The loading arm (119) was moved vertically and moved laterally to provide a stacking facility provided with a transfer mechanism (120) for transferring to a predetermined position.

  The invention according to claim 2 is configured such that the stacking device (118) stacks the stacked seedling boxes (C) in a plurality of times and stacks the stacked seedling boxes on the stacking arm (119). A plurality of times of stacking are a mode in which the stacked seedling boxes (C) are stacked at a position lower than the gripping position (J) and a mode in which they are stacked at a position higher than the gripping position (J). 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 stacked in the form of stacking to the upper position. The stacking facility according to claim 1, wherein the seedling box (C) is configured to be stacked from the gripping position (J) through an ascending stroke.

  In the invention according to claim 3, the loading arm (119) is a platform (111a) in which the seedling boxes (C) stacked in the forward movement from the normal position (H) are placed in the predetermined position. The nursery box (C) moved up, moved down and stacked is transferred onto the platform (111a), and then moved away from the platform position by the lateral movement of the return stroke in the lowered state. The loading device (118) is configured to retreat to (I), and the loading device (118) is configured to retract the seedling box (C) to the loading arm (119) for the first time when the loading arm (119) is in the retracted position (I). The stacking arm (119) is moved up to the normal position (H) before the next seedling box (C) is loaded onto the loading arm (119). A stacking facility was adopted.

The invention according to claim 4 is configured such that the loading arm (119) is configured to load the seedling box (C) on the front side and the back side of the loading arm (119), and the position on the back side. When loading, the nursery box (C) stacked in the forward movement from the normal position (H) is moved onto the platform (111a) at the predetermined position and moved down to be stacked. When the seedling box (C) is transferred onto the platform (111a), moved back in the reverse stroke and returned to the normal position (H), and loaded at the front position, the normal position From (H), the nursery boxes (C) stacked by the lateral movement in the forward direction are moved onto the platform (111a) at the predetermined position, and the nursery boxes (C) stacked by moving down are loaded. Transferred onto the table (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). And a stepped product facility according to any one of claims 3 Motomeko 1.

According to the first aspect of the present invention, since the seedling box C is directly loaded on the loading arm 119 by the loading device 118, it is possible to improve the work efficiency while maintaining good transfer accuracy.
According to the invention of claim 2, in addition to the effect of the invention of claim 1, in the form of stacking to a lower position, the stacked seedling boxes C are stacked from the gripping position J through a descending process, and the upper Since the stacked seedling boxes C are stacked from the gripping position J through the ascending process in the form of stacking to the position, the height of the loading position in the multiple loadings is set to the height of the gripping position as much as possible. As a result, the transfer route for loading a plurality of times can be shortened as a whole, and work efficiency can be improved.

  According to the invention of claim 3, in addition to the effect of the invention of claim 2, when the nursery box C is first loaded on the loading arm 119, it is directly loaded on the loading arm 119 in the retracted position I. The seedling box C can be loaded without waiting for the loading arm 119 to move up from the retreat position I to the normal position H, and the 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 loading at the back side position, the loading arm 119 is moved upward by the lateral movement of the backward stroke. Since it returns to the normal position H while moving, the return of the loading arm to the normal position H can be accelerated, 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) 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) Side view of nursery box transshipment device Top view of nursery box transshipment device Front view of nursery box transshipment device Top view showing a greening trolley Side view showing the main part of the stacked lift section Top view showing the pusher Side view showing an extrusion tool Front view showing a state where seedling boxes are stacked on a greening cart 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 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 Top view showing seed bucket Side view showing seed bucket Front view showing seed bucket Plan view showing different hot water disinfection devices Side view showing different hot water disinfection devices Cross-sectional front view showing a hot water pipe Cross-sectional side view showing hot water pipe Plan view showing cultivation bed and liquid sprayer Front view showing cultivation bed and liquid sprayer Front view showing work cart Front view showing a work cart with a tip-over prevention wire

One embodiment of the present invention will be described below.
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 the 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 the emergence 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. This 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.

  The stacking device 117 contacts the bottom surface of the seedling box C transported by the seedling box transport conveyor 103 and lifts the seedling box C, and the edge of the seedling box C lifted by the eccentric cam 121 Supporting support plate 122 is provided. 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 ten stacked seedling boxes C together, a fixed arm 125 that holds one side of the seedling box C, and the other side of the seedling box C that faces each other. The nursery box C is held by the movable arm 126 that holds The fixed arm 125 and the movable arm 126 are moved up and down by a motor 127 for moving up and down, hold the raising seedling boxes C stacked and stacked, and move the raised seedling boxes C up and lift them. Further, it moves laterally through the loading rack 129 driven by the lateral movement motor 128 and moves the grasped seedling box C onto the loading arm 119. Thereafter, the fixed arm 125 and the movable arm 126 are moved downward, and the movable arm 126 is moved outward to release the holding of the seedling box C.

  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. It moves to the inside of the emergence trolley 111 that moves and waits, the loading arm 119 is moved down by the pantograph mechanism 130, and the nursery box C is moved to the beam-like pedestal 111a of the emergence trolley 111. , The loading arm 119 moves laterally in the backward stroke to the retracted position, and is moved up from the retracted position to the original normal position by the pantograph mechanism 130. The budding trolley 111 is configured to place the seedling boxes C stacked at the four placement positions in the front, rear, left, and right directions, and is appropriately moved so that the placement position comes to a position facing the loading arm 119. To do. 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 emergence cart 111 is configured to travel on a cart travel rail 131 provided in parallel along the seedling 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. A position along the movement path of the loading arm 119 is a lateral movement sensor 132 that detects that it has moved out of the rearing seedling box C at the rear placement position and has reached the position in the budding carriage 111 during the lateral movement of the return stroke. 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 fixed arm 125 and the movable arm 126 of the stacking device 118 slightly float from the gripping position J after gripping the seedling box C, move sideways and move onto the stacking arm 119, and reach the retracted position I. Then, the movable arm 126 is moved outward to release the nursery 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 fixed arm 125 and the movable arm 126 of the stacking device 118 grip the seedling box C, slightly rise from the gripping position J, move laterally and move onto the loading arm 119, and the first seedling box Slightly moves down to the upper surface of C, the movable arm 126 is moved outward, and the holding of the seedling box C is released. 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 fixed arm 125 and the movable arm 126 of the loading device 118 grip the seedling box C, move upward from the gripping position J to a position slightly higher than the upper surface of the second seedling box C, and move sideways. It moves onto the loading arm 119, slightly moves 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.

  As described above, this stacking facility holds the stacking device 117 for lifting and stacking the seedling box C conveyed from the seedling box transporting conveyor 103 from below and the seedling box C stacked by the stacking device 117. Then, the loading device 118 for lateral movement and loading, the loading arm 119 on which the seedling box C is loaded by the loading device 118, and the loading arm 119 are moved up and down and laterally moved 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 time required for placing the seedling box C from H onto the placement position on the near side of the budding 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 germination carriage 111 that accommodates the stacked seedling boxes is germinated in the germination chamber 48 for about 3 days. The seedling box group sprouted in the budding room 112 is supplied to the seedling box transfer device 143 together with the pallet P or the budding carriage 111 when transshipping to the greening carriage 146. The seedling box transshipment device 143 releases the stacking of the seedling boxes in the stage lifting section 144 and the stage lifting section 144 for lifting the stacked seedling boxes by the height of one seedling box. A seedling box transporting unit 145 for transporting the seedling box and a stacking unit 147 for stacking the seedling boxes transported by the seedling box transporting unit 145 on the greening cart 146. The boxes are stacked on the greening carts 146. The seedling box transfer device 143 lifts two rows of seedling box groups at the same time by the stage lift unit 144, the seedling box transport unit 145, and the shelf unit 147. The stacking is canceled at the same time, and the two seedling boxes whose stacking has been canceled are stacked on the greening cart 146.

  The stage stack lift unit 144 scoops and feeds the group of seedling boxes stacked on the pallet P or the emergence cart 77 by the fork 148 to the lift position 149, and receives the signal from the seedling detection sensor 104 described later. The nursery box group is lifted by the height of one nursery box. The fork 148 is configured to move up and down by forward and reverse rotation of a fork lifting motor (not shown). The seedling box transporting unit 145 includes a roller conveyor 150 that transports the seedling box from the stage lift unit 144 to the shelf unit 147 and the top of the seedling box group at the lift position 149 of the stage lifting unit 144. And a seedling box transfer device 151 for supplying the seedling box to the roller conveyor 150. The nursery box transfer device 151 picks up the uppermost nursery box at the lift position 149 of the stack lift part 144 from above with the pressing tool 152 while lifting it up and down with the front and rear gripping parts 153, and moves the nursery box to the rear After moving laterally above the roller conveyor 150, the seedling box is lowered and supplied onto the roller conveyor 150 to release the gripping portion 153. The raising / lowering, lateral movement, and gripping operation or release of the gripping portion 153 are performed by gripping portion lifting / lowering cylinders, gripping portion lateral movement cylinders, and gripping cylinders provided in the gripping portion 153, respectively. Accordingly, the seedling box re-transition device 143 releases the stage stack of the seedling box group in the stage lift section 144 and conveys the seedling boxes to the shelf section 147. The roller conveyor 150 is always driven to transport the seedling box. Then, when the fork 148 lifts the group of seedling boxes to a predetermined height by the fork 148 where the remaining number of the seedling boxes stacked is a predetermined number, the stage lifting unit 144 lifts the seedlings from the fork 148. The upper take-up lug 154 takes over the group of boxes, and as with the fork 148, all the seedling boxes are lifted by the height of one seedling box until the seedling box transfer device 143 eliminates all the seedling boxes from the stacking lift 144. It is supposed to be. Accordingly, after the fork 148 has taken over the seedling box group to the take-up lug 154, the next nursery box group is lifted in stages while the take-up lug 154 lifts the seedling box group by a predetermined height. The unit 144 is configured to operate so as to be supplied to the lift position 149. The take-up lug 154 is provided at an appropriate position of the endless belt, and is raised by the action of a take-up lug operating motor (not shown).

  The stacked lift unit 144 is provided with a photoelectric seedling detection sensor 104 for detecting the seedling in the uppermost nursery box of the seedling box group. The seedling of the uppermost nursery box in the seedling box group that is raised by the seedling detection sensor 104 is provided. When a predetermined height at which the seedling detection sensor 104 is disposed is reached, the operation of the fork raising / lowering motor or the take-up lug operating motor is stopped via the control device to While stopping the raising operation, the gripping part raising / lowering cylinder is actuated to lower the gripping part 153 to start the operation of the seedling box transfer device 151. The seedling detection sensor 104 is configured to detect an object by irradiating light in the lateral direction (horizontal direction). Further, the control device has a timing change adjustment dial (which can change a delay time from the detection of the seedling by the seedling detection sensor 104 to the stop of the operation of the stack lift unit 144 and the start of the operation of the seedling box transfer device 151). (Not shown).

  The roller conveyor 150 is provided with seedling box stoppers 155 on the upper transfer side and lower transfer side, and the seedling boxes conveyed to the seedling box stopper 155 come into contact with each other so that the seedling boxes are placed on the roller conveyor 150 at a predetermined level. It is configured to stop at the position. The nursery box stopper 155 can be moved out and with respect to the nursery box conveyance path of the roller conveyor 150, and is configured to retreat upward so as to pass the nursery box. The nursery box stoppers 155 on the upper transfer side and the lower transfer side can stop two seedling boxes at two positions on the roller conveyor 150 at the same time.

  The shelf 147 corresponds to the greening cart lifting / lowering unit 159 provided on one side of the roller conveyor 150 and the seedling box stopper 155 on the opposite side of the roller conveyor 150 from the greening cart lifting / lowering unit 159. And the extrusion apparatus 160 provided in the conveyance upper side and conveyance lower side is respectively provided and comprised. In the greening cart lifting and lowering unit 159, the greening cart 146 is moved up and down so that each of the shelves 157a on which a plurality of seedling boxes provided at predetermined intervals above and below the greening cart 146 are at the same height as the roller conveyor 150. It has become. Accordingly, the shelf stacking portion 147 is raised by the pushing device 160 with the seedling box stopper 155 in the state where the greening cart 146 is raised and lowered by the greening cart lifting unit 159 so that the shelf 157a and the roller conveyor 150 are at the same height. The nursery box on the roller conveyor 150 stopped by the above is pushed into the shelf of the greening cart 146 so that the nursery boxes are stacked. The pushing device 160 pushes two seedling boxes conveyed by the roller conveyor 150 into the shelf 157a of the greening cart 146 at the same time.

  The greening cart 146 is provided with a total of four wheels 157b with casters, and a total of four seedling boxes C are placed on the shelf 157a having the same height in two rows in the front and rear and two rows in the left and right. Yes. Then, when stacking the seedling boxes on the greening cart 146, the nursery box stopper 155 on the lower transport side and the extrusion device 160 on the lower transport side are operated, and the green cart 146 is intermittently moved in the greening cart lifting / lowering unit 159. It raises for every up-and-down pitch of the shelf 157a, and the nursery box is piled by 2 pieces below in order from the top shelf 157a on the one side of the greening cart 146. At this time, the nursery box stopper 155 on the upper transfer side is retracted upward to allow the nursery box to pass therethrough, and the pusher 160 on the upper transfer side is stopped. When the seedling boxes are stacked up to the bottom of one of the shelves before and after the greening cart 146, the nursery box stopper 155 on the transport upper side and the pushing device 160 on the upper side of the transport are acted and the greening cart lifting / lowering unit 159 operates. The greening cart 146 is intermittently lowered at every vertical pitch of the shelf 157a, and two nursery boxes are stacked in order from the lowest shelf 157a on the other side of the greening cart 146 to the top shelf 157a. The stacking to the greening cart 146 is completed.

  The extrusion device 160 pushes the right and left seedling boxes C at the same time. However, in order to stack them on the greening cart 146, considering the daylighting property to the seedling box C, the spacing between the left and right seedling boxes C is set. Need to be free. Therefore, a gripping arm 134 that is operated by a gripping electromagnetic solenoid 134a is provided at the tip of the pusher 133 of the pusher 160. After the pushing tool 133 pushes the right and left seedling boxes C into the greening cart 146, the gripping arm 134 is pivoted (moved) downward and hooked inside the side wall of the seedling box C on the pushing tool 133 side. The lifting tool 133 is slightly returned and moved to move the seedling box C on the pusher 133 side to leave a space between the left and right seedling boxes C, and the gripping arm 134 is rotated (moved) upward to move the side wall of the seedling box C. The pusher 133 is retracted from the inside, and the pusher 133 returns to the initial position and operates. Thereby, not only the daylighting ability to the nursery box C in the greening cart 146 is improved, but the vertical pitch of the shelves 157a of the greening cart 146 can be reduced by the amount of the daylighting improvement. C can be accommodated.

  The greening cart lifting / lowering unit 159 includes a greening vehicle mounting frame 161 on which the greening vehicle 146 is placed, a lifting motor 162 for moving the greening vehicle mounting frame 161 up and down, and driving of the lifting motor 162. As a result, an elevating chain 163 that operates up and down is provided. The greening stand mounting frame 161 can enter the dug portion 165 dug below the floor surface 164 of the facility, and the upper surface can be made the same height as the floor surface 164. Therefore, when the wheel 157b is rotated by manually pushing the greening carriage 146 and the greening carriage 146 is moved and placed on the greening stand mounting frame 161, it is not necessary to move the greening carriage 146 in the uphill and in the horizontal direction. Therefore, the greening carriage 146 can be easily moved. Further, the greening vehicle mounting frame 161 has a quadrangular frame shape with a hole 161a opened in the central portion in plan view, and is below the four wheels 157b on the outer periphery of the greening cart 146 in plan view. It is configured to support the greening carriage 146 in contact with the side. The greening carriage lifting / lowering unit 159 is in contact with the outer periphery of the greening carriage 146 that is placed on the greening carriage mounting frame 161 and moves up and down so that the greening carriage 146 does not move back and forth and right and left. A total of eight guide rollers 166 are provided. The greening carriage guide roller 166 is provided above the upper end of the greening carriage 146 when the greening carriage 146 is at the lowest position and below the extrusion device 160 close to the extrusion device 160 in the vertical direction. It is possible to accurately position the nursery box insertion shelf by the extrusion device 160 without being disturbed when the greening cart 146 is carried in and out of the unit 159. The raising / lowering chain 163 is provided at each of the four corners of the front / rear and left / right sides of the greening stand mounting frame 161, and the greening stand mounting frame 161 can be suspended and supported by the four lifting chains 163. It has become. The raising / lowering motor 162 is driven to drive the raising / lowering chain 163 to move the greening table mounting frame 161 up and down.

  Means for transporting the greening cart 146 on which the seedling boxes are stacked by the nursery box transshipment device 143 to the greening room by means of manually pushing the greening cart 146 and conveying it by the moving cart for greening 167 automatically. Can be transported to. The greening cart 167 is driven by a total of four wheels, that is, left and right idle wheels 168 and front and rear drive wheels 169 provided at the left and right centers of the vehicle body. This greening carriage 167 includes a lifter 170 that moves up and down relative to the vehicle body, a control panel 171 that controls the drive of the lifter 170 and the drive wheel 169, and a battery for driving the lifter 170 and the drive wheel 169. (Not shown) and bumpers 173 at the front and rear ends of the vehicle body. When the lifter 170 is lifted, the lifter 170 comes into contact with the center of the left and right of the greening cart 146 from below. The greening carriage 146 is transported by supporting the greening carriage 146 with the wheels 157b of the 146 floating from the floor surface 164 and running.

  Accordingly, when the greening cart 157 is transported to the greening cart lifting / lowering unit 159 by the greening moving cart 167 in order to stack the seedling boxes on the empty greening cart 146 in the greening cart lifting / lowering unit 159 of the seedling box transshipment device 143. The greening carriage 167 supporting the greening carriage 157 transports and stops the greening carriage 157 to a predetermined position of the greening carriage lifting / lowering unit 159, descends the lifter 170, and the greening carriage of the greening cart lifting / lowering unit 159 The wheel 157b of the greening carriage 157 is placed on the in-vehicle placement frame 161. At this time, since the greening carriage 167 is housed in the hole 161a in the central portion of the greening table mounting frame 161 in a plan view, the greening table can be moved even if the greening table mounting frame 161 is moved up and down. The in-vehicle placement frame 161 and the greening movable carriage 167 are configured not to interfere with each other.

  As a result, the seedling boxes are stacked on the greening cart 146 while the greening cart 167 is stopped at the position where the greening cart 146 is transported, and stops when the stacking of the seedling boxes on the greening cart 146 is completed. The greening cart 146 can be carried out of the greening cart lifting / lowering unit 159 by the greening cart 167. Therefore, when carrying out the greening cart 157 from the greening cart lifting / lowering unit 159, it is not necessary to move the greening cart 167 to the greening cart lifting / lowering unit 159, and the greening cart 146 having completed the stacking can be carried out immediately. The work efficiency of the work for carrying out the greening cart 146 can be improved. Moreover, since the stacking work to the greening cart 146 can be performed in the state where the greening cart 146 is carried into the greening cart lifting / lowering unit 159 by the greening cart 167, the stacking work to the greening cart 146 is performed after the greening cart 146 is carried in. This can be done immediately and the work efficiency of the above-mentioned stacking work can be improved.

  In addition to raising seedlings in the greening room 200, there is a heating device that heats hot water in a hot water pipe 175 during cultivation in a greenhouse or the like. Since the hot water pipe 175 is constituted by connecting a plurality of pipes, there is a risk of water leaking from the welded portion 176 of the joint of the pipe or water leaking due to rusting of the pipe. Accordingly, a flexible hot water supply hose 177 is provided in the hot water pipe 175, and the hot water hose 177 is in close contact with the inner peripheral surface of the hot water pipe 175 by flowing the hot water in the hot water hose 177, thereby improving the heat transfer efficiency. Heating efficiency can be improved. Even if the hot water pipe 175 is bent, the hot water supply hose 177 can be brought into close contact with the inner peripheral surface of the hot water pipe 175. The hot water supply hose 177 may be made of polyethylene or rubber. This eliminates the need for welding the seam of the hot water pipe 175 and reduces the construction cost.

  In addition, in the cultivation in the greenhouse, a liquid sprayer 179 that sprays the liquid on the cultivation bed 178 can be provided. The liquid spray vehicle 179 travels using two hot water pipes 175 provided in the passage 180 between the cultivation beds 178 as a travel rail. When spraying chemicals, the camera 181 was used to photograph the occurrence of pests. When spraying chemicals automatically, local spraying is performed. The amount of chemical solution used can be reduced by local spraying. Moreover, since nutrient solution can also be sprayed, the conventional nutrient solution piping becomes unnecessary. Moreover, the liquid agent dispersion wheel 179 is provided with a fork 182 for taking out the cultivation bed 178. Accordingly, when a cultivation bed 178 that requires harvesting work or leaf cutting work is found by photographing with the camera 181, the cultivation bed 178 is taken out by the fork 182, transported to the start end of the passage 180, and the operator Work in a large work space. In addition, since it is not necessary for the operator to enter the passage 180, the number of planted strains can be increased by the amount that the passage 180 can be narrowed, and the yield can be increased, and it is hygienic.

  When an operator works in the passage 180, the work cart 183 can be driven instead of the liquid spray vehicle 179. This work cart 183 can raise and lower the work table 184 on which the operator is boarded 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.

  Instead of the configuration in which the fall prevention hook 185 is linked to the foot switch 186, the fall prevention wire 189 is provided along the left and right handrails 188 of the work table 184, and when the operator tries to get out of the body, the fall prevention wire 189 The fall prevention hook 185 can be configured to protrude through the interlocking wire 190 by being pulled. At this time, when the right fall prevention wire 189 is pulled, the left fall prevention hook 185 projects, and when the left fall prevention wire 189 is pulled, the right fall prevention hook 185 projects.

  Furthermore, as another example, an electromagnet is provided on the traveling wheel 191, and the electromagnet is not energized while traveling in conjunction with the foot switch 186 so that no magnetic force is generated. A fall can be prevented by the force by which the traveling wheel 191 is attracted to the hot metal pipe 175 made of metal.

  In addition, a liquid level sensor that measures the level of nutrient solution in the nutrient solution tank (raw solution tank) using sound waves is provided, and fertilizer when the nutrient solution decreases to the first set fluid level (20% of the nutrient solution tank). A message prompting creation is sent, and when the nutrient solution decreases to the second set fluid level (10% of the nutrient solution tank), a message prompting fertilizer creation is sent and the target nutrient concentration is suppressed. When the supply amount is reduced and the nutrient solution is exhausted, an alarm is issued and the operation of the nutrient solution supply device is stopped. The target fertilizer concentration is gradually decreased until the nutrient solution is exhausted from the second set liquid level, and the target fertilizer concentration is maintained at the minimum value immediately before the nutrient solution is exhausted.

  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 seed bucket 2 includes an opening 86 facing upward, a lower portion is constituted by a lattice 87 intersecting with a rod 87a of a round bar, and an upper side is constituted by a punching metal 88 punched out of a punching hole 88a. doing. Since the punching hole 88a is punched outward, burrs and the like that rise due to punching rise outward and the inner surface becomes smooth.

  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. Accordingly, the seed bucket 2 that has been raised to the upper end of the lifting conveyor 6 of the lifting device 3b is moved down to the transfer start end side of the transfer 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, the convection in the short direction (left-right direction) of the hot water disinfection tank 1 is entirely in the front-rear direction. 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.

And the seed bag P which passed the several cooling bucket 8 sequentially is discharged | emitted from the discharge chute 17, and is dried with the drying apparatus O of the next process.
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.

  The seed bucket 2 includes a plate-shaped punching metal 88 having an opening 86 facing upward, a lower portion made of a lattice 87 intersecting with rods 87a, and punching holes 88a punched outward at an upper side surface. The seeds are inverted and supplied to the cooling bucket 8 of the cooling tank 10.

  Therefore, the seed bucket 2 is inverted to supply seeds from the seed bucket 2 to the cooling bucket 8, but the side surface of the seed bucket 2 is composed of a punching metal 88 punched out of the punching hole 88a. The seed bag P or the like accommodated in the seed bucket 2 can be smoothly supplied to the cooling bucket 8 by sliding on the side surface without being caught on the side surface of the seed bucket 2. Further, the hot water and air that are circulated and stirred in the hot water tank 1 are smoothly supplied into the seed bucket 2 from the lattice 87 below the seed bucket 2.

  Therefore, since the hot water circulated and stirred in the hot water tank 1 can be smoothly supplied from the lattice below the seed bucket 2 into the seed bucket 2, the seed heating process can be performed well, and the seed bucket 2 can be cooled by the cooling bucket. Since seeds can be smoothly supplied to 8, seed germination failure and reduction in processing efficiency due to the fact that the cooling treatment is not performed immediately after the heating treatment 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 with reference to FIG.
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. Therefore, 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 seed potato bow and needs frequent cleaning.

  Next, a drying and storage process is demonstrated based on FIG. The seed bag P taken out from the discharge chute 17 of the cooling device B is dehydrated by the dehydrator 51, and then stacked on the net container 46. The net container 46 is drained and sent to the drying device O or the drying chamber 52 of FIG. dry. 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 with reference to FIG.
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.

  As a different hot water disinfection device, the storage basket 250 for storing seeds can be arbitrarily supplied to the hot water disinfection tank 1. This hot water disinfection device is provided with a plurality of mounting tables 251 on which the storage tub 250 is placed in the hot water disinfection tank 1, and each lifting cylinder 252 for moving the mounting table 251 up and down is provided. The mounting table 251 is provided with a seed sensor 253 that detects the presence or absence of seeds in the storage basket 250 mounted. The mounting table 251 is in an elevated state protruding upward from the liquid level of the hot water disinfection tank 1 in the initial state, and the seed sensor 253 is moved by the operator mounting the storage basket 250 storing seeds on the mounting table 251. When the seed is detected, the elevating cylinder 252 is actuated to lower the mounting table 251, and the storage basket 250 is immersed in the hot water in the hot water disinfection tank 1. The controller 254 manages this immersion time, and the mounting table 251 is raised when the set time is reached. In addition, raising / lowering of each mounting base 251 is controlled separately. Therefore, the operator automatically performs the seed disinfection process by placing the storage basket 250 containing the seeds on the mounting table 251, and takes out the storage basket 250 after the seed disinfection process is completed from the elevated mounting table 251. Since it is good, the work is facilitated, and the accommodation basket 250 may be appropriately placed on the vacant mounting table 251. Therefore, the timing for supplying seeds is not restricted, and the seed supply work is facilitated.

  103: Nursery box conveyor, 110: Stacking equipment, 111a: Loading platform, 117: Stacking device, 118: Loading device, 119: Loading arm, 120: Transfer mechanism, C: Nursery box, H: Normal Position, I: retracted position, J: gripping position

Claims (4)

  A stacking device (117) for lifting and stacking the seedling boxes (C) conveyed by the seedling box 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 loading arm (119) on which a seedling box (C) is stacked by the loading device (118), and the loading arm (119) are moved up and down A stacking facility provided with a transfer mechanism (120) that moves and moves horizontally to a predetermined position.   The stacking device (118) is configured such that the stacked seedling boxes (C) are divided into a plurality of times and stacked on top and bottom to be stacked on the loading arm (119). And a form for stacking at a lower position than the gripping position (J) for gripping the seedling box (C) and a form for stacking at a position higher than the gripping position (J). In the form of attaching, 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 stacked in the gripping position (J The stacking facility according to claim 1, wherein the stacking facility is configured to be stacked through an ascending stroke.   The loading arm (119) moves the nursery box (C) stacked in the forward movement from the normal position (H) onto the platform (111a) at the predetermined position, and moves downward to move the stage. The stacked seedling box (C) is transferred onto the platform (111a), and is configured to retract from the platform position to the retracted position (I) by lateral movement in the backward stroke while being in the lowered state. When attaching the seedling box (C) to the loading arm (119) for the first time, the attaching device (118) directly loads the seedling box (C) on the loading arm (119) in the retracted position (I), The stacking equipment according to claim 2, wherein the loading arm (119) is moved up to the normal position (H) before loading C on the loading arm (119). The loading arm (119) is configured so that the seedling box (C) is stacked at positions on the front side and the back side of the loading arm (119), and when loaded at the position on the back side, the normal position (H ) To move the seedling boxes (C) stacked by the lateral movement in the forward direction onto the platform (111a) at the predetermined position, and move the seedling boxes (C) stacked by moving down to the platform (C) 111a) When moving up and returning to the normal position (H) while moving upward in the backward movement, when loading to the near side position, the lateral movement of the forward stroke from the normal position (H) The stacked seedling boxes (C) are moved onto the platform (111a) at the predetermined position, and the stacked nursery boxes (C) are moved onto the platform (111a). Go to the retracted position by the lateral movement of the backward stroke (I), any one of claims 1 to 3, which is configured to be moved upward to a normal position (H) from the retracted position (I) Stage product installation according to claim.