JP4376105B2 - Nursery box binding device - Google Patents

Description

  The present invention relates to a seedling box binding apparatus in a seedling box binding machine that binds a seedling box used when raising seedlings such as rice in a state where a plurality of layers are stacked after washing.

Conventionally, a seedling box used for raising seedlings after planting seedlings such as rice is collected, and the collected seedling boxes are washed, stacked in multiple stages, and bundled together (nursing box washing and binding device). (For example, refer to Patent Document 1).
JP-A-6-237648

  However, the nursery box cleaning and binding apparatus is equipped with an apparatus that efficiently cleans the seedling box and stacks it in a plurality of stages, but does not include a binding apparatus that smoothly and efficiently binds the seedling box. For this reason, the stacking of the seedling boxes that have been stacked is done by hand-tightening rubber bands (PP bands) to the top and the bottom seedling boxes, making it easy to bind the seedling boxes. There has been a demand for a seedling box binding device that can be used in the future.

The device for binding nursery box of the present invention to solve the above problems, comprises a housing 4 for stocking a plurality of the fastening band 2, and a bundling unit 41 for bundling the nursery box D stacked in a plurality of stages, the The binding part 41 is provided with upper and lower grips 52 for taking out the fastening band 2 stocked in the storage device 4 by movement and for engaging the fastening band 2, and for binding the binding part 41 to the uppermost nursery box D1. And the bottom raising seedling box D2 are arranged so as to span the fastening band 2 and arranged on opposite sides of the stacked seedling box D, and the fastening band 2 is passed over the laminated seedling raising seedling. When the seedling box D is bound to the opposite sides of the box D , the upper side of the fastening band 2 is positioned above the uppermost seedling box D1 by the upper grip 52, and the seedling box D1 is placed. Locked to the top of the bottom Both the seedling boxes D1 and D2 are fastened by the fastening band 2 by positioning the lower side of the fastening band 2 below the lowermost seedling box D2 and engaging the lower end of the seedling box D2 by the holding part 52 The first feature is that the holding portion 52 is retracted from the fastening band 2 and the seedling box D is bound in this state.

Secondly , air cylinders 56 and 57 that expand and contract in the vertical direction, cam followers 62 that move up and down by the expansion and contraction of the air cylinders 56 and 57, and cam plates 63 and 64 that come into contact with the cam followers 62 and the cam surfaces 63a and 64a are provided. The cam follower 62 is characterized by binding the seedling box D by moving the grip 52 by the cam plates 63 and 64 by expansion and contraction of the air cylinders 56 and 57 .

Third, hook 2b for engagement with nursery box D1, D2, and 2c formed on the upper and lower surfaces of the fastening band 2, the gripping portion 52, gripping claws 109 to support the fastening band 2 by insertion into the fastening band 2 Provided on the tip side of the arm 108 constituting the portion 52, and when the hooks 2b, 2c are engaged with the seedling boxes D1, D2, the hooks 2b, 2c protrude from the claw portion 109 toward the seedling box D1, D2 side . Attach the arm 108 of the upper gripping part 52 so that the tip side is inclined downward, and attach the arm 108 of the lower gripping part 52 so that the tip side faces upward, so that the gripping part 52 is moved up and down. with placing, and movable each of the gripping portions 52 in the vertical direction, after binding of the nursery box D by fastening band 2, and configured to retract from the fastening band 2 while reducing the distance between the two sets of grip parts 52 It is characterized by a door.

  With the seedling box binding device of the present invention configured as described above, the seedling boxes stacked in a plurality of stages are fastened with fasteners on both sides facing each other, and are bundled in a plurality of stages. There is an effect that bundling can be performed easily and stably. In particular, the fasteners are transported from the storage device by the gripping part that grips the fasteners, the fasteners are respectively locked to the seedling boxes, and the gripping part is retracted from the fasteners when the seedling boxes are fastened. By doing so, the logic from the holding | grip of a fastener to the evacuation after fastening can be simplified, and a nursery box can be tied by simple operation | movement.

  In addition, hooks for engagement with the nursery box are provided above and below the fastener, and a claw part that supports the fastener by insertion into the fastener is provided on the gripping part. By tilting so that it protrudes toward the seedling box side from the part, it is easy to make the hook project to the seedling box side in a state where the claw part is arranged at a position that does not contact the seedling box side, It is possible to easily prevent the claw portion from being obstructed during the engaging operation.

  The gripping portions are arranged up and down, and each gripping portion is movable in the vertical direction, and after the seedling box is bound by the fastener, the distance between the gripping portions is reduced and the seat is retracted from the fastener. By doing so, the upper and lower gripping parts do not cause the fasteners to expand and contract during retraction, easily and stably separate from the fasteners, and erroneously release the engagement between the fasteners and the nursery box during retraction The inconvenience of doing is also prevented.

  1 to 4 are a right side view, a plan view, a rear view, and a front view of a seedling box binding machine that fastens and stacks stacked seedling boxes with a fastening band. The seedling box binding machine A is disposed downstream of a cleaning system B that cleans, stacks and discharges empty seedling boxes. The cleaning system B is provided with a conveyor C that conveys the stacked seedling boxes (stacked seedling boxes) D from the upstream to the downstream (in FIG. 1, from the right side to the left side, that is, from the front to the rear). Since the cleaning system B is conventionally known, a detailed description is omitted.

  The seedling box binding machine A receives the stacked seedling box D from the conveyor C side of the cleaning system B, carries it to a predetermined binding position α, and discharges it downstream after binding, A binding device 3 for fastening the fastening band 2 as a fastener to the uppermost nursery box D1 and the lowermost nursery box D2 and binding the stacked nursery box D, and supplying the fastening band 2 to the binding device 3 It comprises a supply device 4. The seedling box transport device 1, the binding device 3 and the supply device 4 are integrally configured on a gantry 7 provided with casters 6, and the seedling box binding machine A can be moved as a whole.

  The structure of the seedling box transport device 1 will be described. As shown in FIG. 5 to FIG. 8, the seedling box transport device 1 is composed of a transport chain unit 8 supported by a gantry 7 so as to be movable up and down. The transport chain unit 8 is provided with a guide 9. The guide 9 is composed of a pair of front and rear guide rods 11 that are in sliding contact with both left and right side surfaces of the laminated nursery box D supplied from the conveyor C.

  The front end portion of each guide bar 11 is curved and bent outward. As a result, the stacked nursery box D from the conveyor C is accepted with a predetermined range of displacement, the received stacked nursery box D is sandwiched between the guide rods 11 on both sides, and the left and right positions of the stacked nursery box D are positioned. To do. The seedling box D positioned by the two guide rods 11 is conveyed by the conveying chain unit 8 along the linear movement locus in the downstream direction X.

  The transport chain unit 8 includes a transport chain 12 for transport and a chain frame 14 that supports a sprocket 13 of the transport chain 12. The guide rod 11 is attached to the chain frame 14 side. Support shafts 16 that support the sprocket 13 are rotatably supported at both front and rear ends of the chain frame 14.

  The sprocket 13 is pivotally supported at both ends of each spindle 16. The sprocket 13 makes a pair of front and rear. The conveying chain 12 is hung between two sprockets 13 that form a pair, and two are provided on the left and right sides of the chain frame 14. A drive sprocket 17 is pivotally supported in the approximate center of the rear support shaft 16. A motor 19 is fixed to the chain frame 14 via a subframe 18.

  An output sprocket 21 is provided on the drive shaft of the motor 19. The output sprocket 21 and the drive sprocket 17 are connected in transmission via a drive chain 22. The left support shaft 16 is rotationally driven by the drive of the motor 19, whereby the both conveying chains 12 are rotationally driven. Both conveying chains 12 are in contact with the bottom surface of the seedling box D2 at the bottom of the stacked seedling box D. The transport chain unit 8 transports the stacked seedling box D in the downstream direction X by the rotational drive of both transport chains 12.

  The chain frame 14 is provided with a stopper 28 that comes into contact with the stacked seedling box D that is transported in the downstream direction X by the transport chain 12. As shown in FIG. 9, the stopper 28 is pivotally supported by the chain frame 14 so as to be swingable. The chain frame 14 is also provided with an air cylinder 29. A cylinder rod 29 a of the air cylinder 29 is connected to the stopper 28. The stopper 28 is switched between the standing state S <b> 1 and the lying state S <b> 2 by the expansion and contraction drive of the air cylinder 29.

  The stopper 28 comes into contact with the downstream end face of the stacked nursery box D in the standing state S1 and stops the stacked nursery box D. The stacked seedling box D is positioned at a predetermined position in the gantry 7 by contacting with the stopper 28. This stopper 28 positions the laminated seedling box D at the binding position α. The motor 19 stops when the stacked seedling box D is located at the binding position α, and stops driving the transport chain 12.

  The stopper 28 does not contact the seedling box D in the lying state S2. After the bundling operation by the bundling device 3 is completed, the stacked nursery box D is discharged from the nursery box bundling machine A by setting the stopper 28 in a lying state and driving the transport chain 12.

  A main frame 24 is fixed below the chain frame 14 via a bracket 23. A plurality of bearings 26 are provided on the main frame 24 and the chain frame 14. A guide rod 27 is provided on the gantry 7 in the vertical direction. The main frame 24 and the chain frame 14 are supported by the gantry 7 so that the bearing 26 sandwiches the guide rod 27. As a result, the transport chain unit 8 can slide up and down with respect to the gantry 7 with the guide rod 27 as a guide.

  A support shaft 31 is rotatably supported on the front end portion on the side of the gantry 7 vertically and horizontally. Two pairs of upper and lower sprockets 32 are supported on both the support shafts 31 on the left and right. A chain 33 is wound between the pair of sprockets 32. Each chain 33 is connected to the main frame 24 between the two sprockets 32.

  A sprocket 34 is pivotally supported at the end of the lower support shaft 31. The sprocket 34 is connected to a drive sprocket 37 of a motor 36 mounted on the gantry 7 through a chain 38. By driving the motor 36, the lower support shaft 31 is rotationally driven, both the chains 33 are rotated, and the transport chain unit 8 is driven up and down.

  The motor 36 raises the transfer chain unit 8 to approximately the same height as the conveyor C of the cleaning system B in the raised state, and allows the seedling box D to be received from the conveyor C. Further, the transfer chain unit 8 is set to be substantially the same height as a conveyor of a stock system (not shown) disposed downstream of the seedling box binding machine A (the gantry 7) in the lowered state, and is bound to the conveyor of the stock system. The subsequent stacked seedling box D can be discharged.

  With the above structure, the seedling box transport apparatus 1 first receives the stacked seedling box D from the cleaning system B by driving the transport chain 12 with the stopper 28 in the standing state S1 in a state where the transport chain unit 8 is raised. The stacked nursery box D is carried in by the transfer chain 12 until the stopper 28 and the nursery box D come into contact with each other.

  The stacked seedling box D is inherited from the conveyor C of the cleaning system B to the transfer chain 12, and is continuously transferred from upstream to downstream following the transfer path by the conveyor C, and is positioned at the binding position α. After the binding operation of the binding seedling box D at the stop position (binding position α) is completed, the transport chain unit 8 is lowered, the stopper 28 is set in the lying down state S2, and the transport chain 12 is driven, thereby stacking after binding. The seedling box D is discharged toward the conveyor of the stock system.

  The operation of the nursery box transport apparatus 1 is realized by controlling the motors 19 and 36 and the air cylinder 29 by a controller such as a sequencer (not shown) on the nursery box binding machine A side.

  The structure of the bundling device 3 will be described. As shown in FIGS. 1 to 4, the bundling device 3 includes a bundling portion 41 that locks the fastening band 2 to the stacked seedling box D, and the bundling portion 41 is fastened to the fastening band 2 (locking). A bundling moving unit 42 that is moved to (position). A bundling portion 41 and a bundling moving portion 42 forming a pair are arranged on both the left and right sides of the transport chain unit 8 with the transport chain unit 8 interposed therebetween, and the binding device 3 is configured.

  In the binding device 3, the left and right binding parts 41 are moved by the corresponding binding moving parts 42, and the fastening bands 2 are locked by parallel work on both sides (left and right sides) sandwiching the transfer chain unit 8 of the stacked seedling box D. Then, the stacking seedling box D for binding the stacking nursery box D with the fastening bands 2 on both the left and right sides is bound.

  10A and 10B are a side view and a front view of the fastening band 2 alone. The rubber band 2a has an 8-character shape with spaces S formed at both upper and lower ends, and hooks 2b and 2c attached to the space S of the rubber band 2a and provided at both ends. The hooks 2b and 2c are bent toward the rear to form a locking portion 2d for locking to the uppermost or lowermost seedling box D1 or D2. The upper hook 2b and the lower hook 2c are asymmetric. For this reason, the fastening band 2 has upper and lower sides, and the upper hook 2b is locked to the uppermost seedling box D1, and the lower hook 2c is locked to the lowermost seedling box D2.

  11, 12, and 13 are a right side view, a rear view, and a plan view of the binding unit 41. The binding portion 41 includes a vertical frame 43 that is U-shaped in a plan view. A slide unit 44 is attached to the frame 43 so that the vertical direction is the sliding direction. The slide unit 44 is a conventionally known unit in which a slide 47 slides on a rail 46. The slide unit 44 is provided with two upper and lower slides 47.

  A block 48 is attached to each of the slide elements 47. In each block 48, two pairs of shafts 49 are inserted so as to be slidable to the left and right. A block 51 is fixed to the ends of the shafts 49 forming a pair. The block 51 is provided with a gripping portion 52 that performs a locking operation of the fastening band 2. An air cylinder 53 is attached to the upper surface of each block 48 in the left-right direction. The slider rod 53 a of the air cylinder 53 is connected to the block 51 through a floating joint 54.

  Air cylinders 56 and 57 are attached to the upper and lower ends of the frame 43. The slider rod 56 a of the upper air cylinder 56 is connected to the upper block 48 via a floating joint 58. The slider rod 57 a of the lower air cylinder 57 is connected to the lower block 48 via a floating joint 59.

  With the above structure, the block 48 can be slid up and down along the rail 53 by the operation of the upper and lower air cylinders 56 and 57, and both the blocks 51 can be slid left and right by the operation of the air cylinder 53 provided in the both blocks 48. it can. The gripping part 52 moves up and down by the slide of the block 48 and left and right by the slide of the block 51.

  A cam follower 62 is attached to the other end of a pair of both shafts 49 slidably inserted into each block 48 via a bracket 61. The frame 43 is provided with cam plates 63 and 64 on the upper and lower sides, respectively. The upper cam follower 62 is in contact with the cam surface 63 a of the upper cam plate 63, and the lower cam follower 62 is in contact with the cam surface 64 a of the lower cam plate 64.

  When the slider rod 53a of the air cylinder 53 is free (neutral) and the block 48 is slid up and down by the air cylinder 56 or 57, the cam follower 62 follows the cam surface 63a or 64a, and the gripping part 52 slides up and down. Depending on the shape of the cam surfaces 63a and 64a, it slides to the left and right to approach the laminated nursery box D or leave the laminated nursery box D.

  The binding portion 41 is moved to the supply device 4 side by the binding moving portion 1 by the movement of the upper and lower grip portions 52 along the cam surfaces 63a and 64a, and then grips and removes the fastening band 2, and then the binding moving portion. 1 is moved to the fastening position PS or PB shown in FIG. 2, the fastening operation of the fastening band 2 is performed, and the binding operation of the stacked seedling box D located at the binding position α is performed.

  The configuration of the binding movement unit 1 will be described. 14, 15, and 16 are a right side view, a front view, and a plan view of the binding moving unit 1. A base frame 67 is fixed on the gantry 7 via legs 66. Plates 68 are fixed on both front and rear sides of the base frame 67. A guide rod 69 is provided between the two plates 68. A bush 71 is fitted on the guide rod 69 so as to be slidable. A bottom plate 72 is fixed to the bush 71.

  An air cylinder 73 is fixed to the rear plate 68. A bottom plate 76 is connected to the slider rod 73 a of the air cylinder 73 via a connecting body 74. An outer plate 76 and an inner plate 77 are fixed to the bottom plate 76 on the left and right. The outer plate 76 and the inner plate 77 are connected and fixed by a fixing rod 78.

  A guide shaft 79 is also provided between the outer plate 76 and the inner plate 77. A bush 81 is slidably fitted to the guide shaft 79. The bush 81 is fixed to the frame 43 of the bundling portion 41. A rodless cylinder 82 is provided between the outer plate 76 and the inner plate 77. The slider 82 a of the rodless cylinder 82 is fixed to the frame 43 of the binding portion 41.

  As described above, the binding portion 41 is slidably supported on the guide shaft 79 of the binding moving portion 1 and attached to the gantry 7. The binding moving unit 1 moves the binding unit 41 back and forth integrally with the bottom plate 72 by driving the air cylinder 73, and between the outer plate 76 and the inner plate 77 by driving the rodless cylinder 82. Move left and right along

  As shown in FIG. 17, a stopper 75 is adjustably provided on the plate 68 opposite to the plate 68 on which the air cylinder 73 is provided. A contact body 70 is provided on the bottom plate 72, and the contact of the contact body 70 with the stopper 75 positions the bottom plate 72, that is, the binding portion 41. The stopper 75 is adjusted so that the left and right bundling portions 41 are positioned at the fastening positions PS or PB, respectively.

  Next, the configuration of the supply device 4 will be described. As shown in FIGS. 1 to 4, the supply device 4 includes two supply units 83 arranged on the left and right sides of the transfer chain unit 8 corresponding to the front and rear binding units 41. Each supply part 83 is arrange | positioned along the above-mentioned linear conveyance path | route of the laminated seedling box D adjacent to the back of the corresponding binding part 41. FIG. Between the supply part 83 and the binding part 41, the supply operation | work of the fastening band 2 is performed toward the upstream direction X along a conveyance path | route.

  FIGS. 18, 19A, 19B, and 19C are a right side view, a rear view, a right side view AA sectional view, and a right side view BB sectional view of the supply unit 83, respectively. . A fixed hanger 84 is fixed to the stand 88 via a frame 86 and a bracket 87. The stand 88 is supported by the gantry 7.

  An air cylinder 89 is fixed to the frame 86 in the front-rear direction. A bracket 92 is connected to a cylinder rod 89 a of the air cylinder 89 via a floating joint 91. The bracket 92 slides back and forth by driving the air cylinder 89. A slide guide 97 is provided between the bracket 92 and the frame 86 to guide the slide of the bracket 92.

  The fixed hanger 84 is provided with a plurality of protrusions 93 arranged in the front-rear direction. The hook 2b of the fastening belt 2 can be hooked between the protrusions 93, that is, the stock portion 94 of the fastening belt 2 is constituted by the adjacent protrusions 93. As for the fastening belt 2, the hook 2b of the upper side is hung on the stock part 94. Thereby, the fastening belt 2 is stocked side by side with the hook 2b on the upper side in the front-rear direction along the moving path of the seedling box D.

  The foremost stock portion 94 forms a take-out portion 94 a for the binding portion 41 to take out the fastening belt 2. The binding part 41 takes out the fastening belt 2 arranged in the take-out part 94a. However, as shown in FIG. 20, the hooking of the fastening belt 2 is not performed on the take-out part 94 a in the initial setting state of the supply part 83. As will be described later, the fastening belt 2 moved to the take-out portion 94a is taken out by the bundling portion 41.

  A guide rod 98 is supported on the bracket 92 so as to be slidable up and down. An air cylinder 99 is attached to the bracket 92 in the vertical direction. A bush 101 is attached to the bracket 92. The guide rod 98 is inserted into the bush 101. A retaining collar 102 is attached to the lower end side of the guide rod 98.

  A single movable hanger 103 is fixed to the upper end of each guide rod 98. The slider rod 99 a of the air cylinder 99 is connected to the movable hanger 103 via the joint 100. The front and rear lengths of the movable hanger 103 are shorter than the fixed hanger 84. The guide rod 98 is provided with a shaft holder 104 located between the movable hanger 103 and the bush 101.

  On the movable hanger 103 side, a protrusion 106 is provided at a position corresponding to the protrusion of the fixed hanger 84. The fastening belt 2 hung on the fixed hanger 84 is positioned between the protrusions 106 of the movable hanger 103. The movable hanger 103 slides back and forth integrally with the bracket 92 by the telescopic drive of the air cylinder 89, and slides up and down relative to the bracket 92 by the telescopic drive of the air cylinder 99.

  As shown in FIG. 20, in the initial setting state, the movable hanger 103 does not exist at a position corresponding to the take-out portion 94 a and is arranged so that the upper end does not protrude above the upper end of the fixed hanger 84. The movable hanger 103 moves the fastening band 2 for supply to the bundling portion 41 to the take-out portion 94a by the above-described vertical and longitudinal sliding movements. A square bar 107 is provided on the movable hanger 103 side. The square bar 107 hinders the hook 2c on the lower side of the fastening band 2 from being hooked on the stock portion 94, and the square bar 107 can prevent the fastening band 2 from being hooked up and down.

  Next, the operations from gripping the fastening band 2 to fastening by the binding unit 43, the binding moving unit 42, and the supply unit 41 will be described in order. The operation of each part is realized by controlling the air cylinder or the like of each part by a controller such as a sequencer (not shown) on the seedling box binding machine A side.

  First, the structure of the holding part 52 will be described. FIGS. 21A and 21B are a rear view and an arrow A view of the upper grip portion 52, and FIG. 22 is a rear view of the grip portion 52. Hereinafter, description will be made based on the upper gripping portion 52. However, the lower gripping portion 52 has the same structure except that the upper gripping portion 52 is upside down.

  The grip portion 52 includes a plate-like base (base plate) 107, an arm 108, a claw portion 109, and a gauge 111. The base plate 107 is fixed vertically (rail direction) to the block 51 of the binding portion 41. The arm 108 is attached to the base plate 107 so as to be inclined so that the front end side is directed downward. The claw 109 is attached to the tip of the arm 108 perpendicularly to the axis of the arm 108.

  The gauge 111 protrudes forward and backward of the arm 108, and the upper surface 111a is parallel to the axis of the arm 108. As a result, the claw portion 109 is separated from the base plate 107 by a predetermined distance, and is attached to the base plate 107 so as to be inclined such that the upper end side is opened.

  Next, the operation of each part will be described. First, the supply unit 41 extends the air cylinder 99 and moves the movable hanger 103 upward so that the upper end is positioned above the upper end of the fixed hanger 84. As a result, all the fastening belts 2 are supported between the protrusions 106 of the movable hanger 103 and are switched to the movable hanger 103 side.

  Then, the air cylinder 89 is extended and moved, the movable hanger 89 is moved forward by one pitch of the stock portion 94, the air cylinder 99 is contracted, and the upper end of the movable hanger 103 is positioned below the upper end of the fixed hanger 84. So that it moves downward. As a result, all the fastening belts 2 are moved forward one pitch at a time to the fixed hanger 84 side, that is, the fastening belt 2-1 that is a take-out candidate by the bundling portion 41 is moved to the take-out portion 94a. It becomes the state of.

  Next, the binding moving part 1 moves the binding part 3 by the air cylinder 73 so that the grip part 52 faces the take-out part 94 a of the supply part 83. At this time, the grip portion 52 on the lower side of the binding portion 3 is positioned at the PD as an initial position, and the cam follower 62 of the grip portion 52 on the lower side is positioned at b-1.

  Then, the air cylinder 53 of the lower grip 52 is extended and operated so that the cam follower 62 of the lower grip 52 is positioned at b-2. As a result, the lower grip 52 is inserted into the lower space S of the fastening band 2 located at the take-out portion 94a.

  On the other hand, the upper gripping portion 52 is positioned at the PU as an initial position, and the cam follower 62 of the upper gripping portion 52 is positioned at a-1. Then, the air cylinder 53 of the upper grip 52 is extended and operated so that the cam follower 62 is positioned at a-2. As a result, the upper grip portion 52 is inserted into the space S above the fastening band 2 located at the take-out portion 94a.

  From the above state, the air cylinder 56 is contracted so that the cam follower 62 of the grip portion 52 on the upper side is positioned from a-2 to a-3, and the fastening band 2 is extended. Thereafter, both the air cylinders 53 are contracted so that the upper cam follower 62 moves from a-3 to a-4 and the lower cam follower 62 moves from b-2 to b-1.

  As described above, the arm 108 of the grip portion 52 is inserted into the space S of the fastening band 2, and the fastening band 2 is gripped between the upper and lower claw portions 109 and the base plate 107 in a stretched state. The part 52 moves away from the supply part 83 while holding the fastening band 2.

  At this time, since the arm 108 is inclined with respect to the block 51 as described above, particularly when the fastening band 2 is stretched, the rear surfaces 2X of the hooks 2b and 2c of the fastening band 2 as shown in FIG. And the bottom surface 2Y are along the claw portion 109 and the arm 108 of the grip portion 52, and the end portions of the hooks 2b and 2c of the fastening band 2 are in contact with the gauge 111.

  As a result, the hooks 2b and 2c of the fastening band 2 are positioned so as to be substantially parallel to the claw portion 109 of the gripping part 52, that is, the fastening band 2 is conveyed by the tip ends (upper end or lower end) of the hooks 2b and 2c. It faces the chain unit 8 side and is stably held in an inclined state so that the locking portion 2d is positioned on the transport chain unit 8 side from the claw portion 109 of the grip portion 52 and is gripped by the grip portion 52.

  In addition, since the claw part 109 of the grip part 52 is inclined as described above, the claw part 109 and the supply part 83 side do not come into contact when the fastening band 2 is gripped by the grip part 52 as described above. The work of taking out the fastening band 2 is performed smoothly.

  On the other hand, after gripping the fastening band 2 as described above, the binding portion 41 is moved by the binding moving portion 1 so that the binding portion 41 on the right side is at the fastening position PS and the binding portion 41 on the left side is the fastening position PB. Respectively. Since the hooks 2b and 2c of the fastening band 2 are inclined as described above, the locking portion 2d protrudes from the claw portion 109 of the grip portion 52 toward the seedling box D1 or D2. As shown in FIG. 2, the fastening positions PS and PB of the left and right binding portions 41 are set to be deviated forward and backward with respect to the center in the front-rear direction of the stacked nursery box D positioned at the binding position α. ing.

  Accordingly, even when the seedling boxes having a rib at the center in the front-rear direction are stacked, the fastening band 2 can be locked while avoiding the rib. In addition, since the fastening load by the fastening band 2 is dispersed back and forth, the bundled state of the laminated nursery box D is stabilized.

  Each of the left and right bundling portions 41 first causes the air cylinder 56 to contract with respect to the upper gripping portion 52 so that the cam follower 62 of the upper gripping portion 52 moves from a-4 to a-5. Thereby, the hook 2b on the upper side of the fastening band 2 is positioned above the uppermost nursery box D1 of the stacked nursery box D.

  Next, the air cylinder 53 of the upper grip 52 is extended and operated so that the cam follower 62 moves from a-5 to a-6. Thereby, the latching | locking part 2d of the hook 2b of the upper side is located in the back | inner side from this seedling box D1 in the upper position of the uppermost seedling box D1.

  After that, when the slider rod 53a of the air cylinder 53 is neutral and the air cylinder 56 is extended and operated, the grip 52 moves downward without moving in the left-right direction until a-7 where the cam follower 62 contacts the cam surface 63a. To do.

  Thereby, the nail | claw part 109 of the holding | grip part 52 moves below, without contact | abutting the lamination seedling box D, and the latching | locking part 2d located in the seedling box D side from the nail | claw part 109 is the front wall of the uppermost seedling box D1 or The hook 2b engages with the upper end of the uppermost seedling box D1.

  From the state of a-7 where the cam follower 62 contacts the cam surface 63a, the cam follower 62 moves to a-8 along the cam surface 63a. Thereafter, the air cylinder 53 is lowered while being compressed, and the cam follower 62 is moved to a-4. As a result, the grip portion 52 is retracted obliquely outward with respect to the fastening band 2, is separated from the space S above the fastening band 2, and the gripping of the fastening band 2 is released.

  After a-4, the contact between the cam follower 62 and the cam surface 63a is released, so that the grip portion 52 moves downward until the cam follower 62 is positioned at a-1 without moving in the left-right direction. Return to position. As described above, the hook 2b on the upper side of the fastening band 2 is locked to the upper end of the uppermost nursery box D1.

  On the other hand, for the lower gripping portion 52, first, the air cylinder 57 is contracted so that the cam follower 62 moves from b-1 to b-3. Thereby, the hook 2c on the lower side of the fastening band 2 is positioned below the lower edge of the fastening position in the lowermost breeding box D2.

  Next, the lower air cylinder 53 is extended and operated so that the cam follower 62 moves from b-3 to b-4. Thereby, the latching | locking part 2d of the hook 2c of the lower side is located in the back | inner side from this seedling box D2 in the position below the lower end edge of the fastening position in the lowermost seedling box D2.

  Thereafter, when the slider rod 53a of the air cylinder 53 is made neutral and the air cylinder 57 is extended and operated, the lower gripping portion 52 is not moved until b-5 where the cam follower 62 of the lower gripping portion 52 contacts the cam surface 64a. It moves upward without moving in the left-right direction.

  Thereby, the nail | claw part 109 of the holding | grip part 52 moves upward, without contact | abutting the lamination | stacking nursery box D, and the latching | locking part 2d located in the nursery box D side from the nail | claw part 109 is the front wall of the lowermost nursery box D2 or The hook 2c engages with the lower end of the lowermost seedling box D2 by fitting in the rear wall.

  Then, from the state of b-5 where the cam follower 62 contacts the cam surface 64a, the cam follower 62 moves to b-6 along the cam surface 64a. Since the contact between the cam follower 62 and the cam surface 64a is released after b-6, the air cylinder 53 is contracted and the gripping portion 52 is moved upward until the cam follower 62 is positioned at b-1, and the gripping portion 52 returns to the initial position.

  As a result, the gripping portion 52 is retracted obliquely outward with respect to the fastening band 2, is separated from the space S below the fastening band 2, and the lower gripping of the fastening band 2 is released.

  By releasing the lower grip of the fastening band 2, the upper and lower grip portions 52 release the fastening band 2. Since the upper and lower grips 52 are retracted from the fastening band 2 to release the grip while shortening the distance between the grips 52, the fastening band 2 is not expanded and contracted during the retracting, The inconvenience of stably separating from the fastening band 2 and erroneously releasing the engagement between the fastening band 2 and the seedling box D1 or D2 during retraction is also prevented.

  The laminated seedling box D is bound by the binding portion 41 through the steps described above, and is fastened and bound by the fastening band 2. Since the binding portion 41 has a structure in which the grip portion 52 is moved by the cam plates 63 and 64, the binding portion 41 is used for movement for removing the fastening band 2 from the supply portion 83 and for locking the fastening band 2. The movement and the movement for retraction after the fastening band 2 is locked can be performed stably, and the operation accuracy is high.

  Further, since the bundling portion 41 performs from the removal of the fastening band 2 to the retraction from the fastening band 2 with relatively simple logic as described above, a fastening error or the like is prevented. The supply unit 83 is configured to send the fastening band 2 sequentially from the stock unit 94 provided along the movement trajectory of the layered seedling box D to the extraction unit 94a along the movement trajectory of the layered seedling box D. The exchange of the fastening band performed between 41 and the supply unit 83 is performed in a straight line in the front-rear direction along the movement locus of the stacked seedling box D.

  For this reason, since it is not necessary to arrange the supply part 83 in the direction (left-right direction) which cross | intersects with respect to the binding part 41 with respect to the movement locus | trajectory of the laminated seedling box D, the size in the left-right width direction of the seedling box binding machine becomes huge. Without this, the installation area in the width direction of the seedling box binding machine can be small. Thereby, arrangement | positioning of this nursery box binding machine can be performed easily.

It is a right view of a nursery box binding machine. It is a top view of a nursery box binding machine. It is a rear view of a nursery box binding machine. It is a front view of a nursery box binding machine. It is a right view of a seedling box transport device. It is a rear view of a nursery box binding machine. It is a front view of a nursery box binding machine. It is a top view of a nursery box binding machine. It is a right view of a stopper part. (A) is a front view of a fastening band alone, and (b) is a side view of the fastening band alone. It is a right view of a binding part. It is a rear view of a binding part. It is a top view of a binding part. It is a right view of a binding movement part. It is a front view of a binding movement part. It is a top view of a binding movement part. It is a principal part right view of the air cylinder part of a binding movement part. It is a right view of a supply part. (A) is a rear view of a supply part, (b) is AA sectional drawing of the right view of a supply part, (c) is BB sectional drawing of the right view of a supply part. It is a right view of the supply part of the state in which the fastening belt was hooked. (A) is a rear view of the upper gripping part, and (b) is a view as seen from the arrow A. It is a left view of the upper holding part. It is a rear view of the holding part which shows a locked state from immediately before locking of a fastening band.

Explanation of symbols

2 Fastening belt (fastening band, fastener)
2b hook 2c hook 4 supply device (accommodating device)
D Laminated nursery box (nursery seedling box)
D1 Uppermost seedling box D2 Lowermost seedling box 41 Bundling part 52 Gripping part
56 Air cylinder
57 Air cylinder
62 Cam Follower
63 Cam plate
63a Cam surface
64 cam plate
64a Cam surface
108 Arm 109 Claw

Claims (3)

A storage device (4) for stocking a plurality of fastening bands (2) and a binding part (41) for binding a seedling box (D) stacked in a plurality of stages are provided, and the binding part (41) has a movement The upper and lower gripping parts (52) for taking out the fastening band (2) stocked in the storage device (4) and engaging the fastening band (2) are provided, and the binding part (41) is attached to the uppermost part. It is constructed so as to span the fastening band (2) across the nursery box (D1) and the lowermost nursery box (D2), and is placed on both sides facing the stacked seedling box (D) and fastened. When the nursery box (D) is bundled by passing the band (2) over the opposite sides of the stacked nursery box (D ), the fastening band (2) is attached by the upper gripping part (52). ) Is positioned above the uppermost nursery box (D1) and the nursery box (D1) The lower side of the fastening band (2) is positioned below the lowermost seedling box (D2) by the lower gripping part (52) and is engaged with the lower end part of the seedling box (D2). In the state where both the seedling boxes (D1) and (D2) are fastened by the fastening band (2), the holding part (52) is withdrawn from the fastening band (2) to bind the seedling box (D). A nursery box binding device to perform . Air cylinders (56), (57) that expand and contract in the vertical direction, cam followers (62) that move up and down by the expansion and contraction of the air cylinders (56), (57), the cam followers (62) and the cam surfaces (63a), ( 64a) is provided with cam plates (63) and (64), and the cam followers (62) are gripped by the cam plates (63) and (64) by the expansion and contraction of the air cylinders (56) and (57). 52. The seedling box binding apparatus according to claim 1, wherein the seedling box (D) is bound by moving 52) . Nursery box above and below the fastening band (2) (D1), a hook for engagement with (D2) (2b), (2c) and is provided, the gripping portion (52), fastened by insertion into the fastening band (2) A claw portion (109 ) for supporting the band (2) is provided on the distal end side of the arm (108) constituting the grip portion (52) , and the hooks (2b) and (2c) are fed to the seedling boxes (D1) and (D2). Of the upper gripping part (52) so that the hooks (2b), (2c) protrude from the claw part (109) to the seedling box (D1), (D2) side. Inclined and attached with the tip side facing downward, the arm (108) of the grip part (52) on the lower side is tilted and attached with the tip side facing upward, and the grip part (52) is arranged vertically, a movable each gripper (52) in the vertical direction, the fastening band (2) After bundling the nursery box (D) with the configuration the device for binding nursery box according to claim 1 or 2 such that the distance retracted from shortened so while fastening band (2) between the two sets of grip parts (52).

Images