JP2000092990A - Device for transferring stacked box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for transferring stacked boxes, capable of simply, rapidly and individually separating the stacked box at the highest stage from the stacked boxes and then smoothly transfer the separated box to a multi- staged receiving member. SOLUTION: In this device for transferring the stacked boxes N, a stacked box-separating device 91 capable of being upward or downward moved with respect to the stacked boxes N is disposed and is used for taking up the highest box N of the stacked boxes N and then transferring the box N to a multi-staged receiving member 79. Therein, the stacked box-separating device 91 is stopped at a position corresponding to an arbitrary receiving member 80A among the multi-staged receiving members 80A and then delivers the box N onto the receiving member 80A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a stacking seedling box.
The present invention relates to a stacking box transfer device for separating sheets one by one and transferring the stacked boxes to a multistage receiving member.

[0002]

2. Description of the Related Art In the seedling raising work of rice and vegetables, a large number of seedling boxes sown by a seeding machine are stacked, placed on a trolley, transported to a greening room as they are, and greened. ), And are greened and / or cured by arranging several hundred to 1,000 sheets. In this case, the seedling boxes after germination are still stacked in a large number in order to increase the transportation efficiency, and the seedling boxes are artificially deployed in the house.

[0003] There is also a method in which the trolley truck is transferred to a greening cart using an automatic seedling box automatic shelf difference device, transported to a greening room by this greening cart, greened, and transported in a hardening house. In this case, the seedling box automatic shelf difference device lifts a large number of stacked seedling boxes once by the elevating mechanism, receives the second or more seedling boxes from below with the stopper, and lowers and transports the lowest seedling box. Then, this is lifted by an elevator and transferred to a shelf (multi-stage receiving member).

[0004]

There is a need for the development of a mechanization technique for efficiently deploying and collecting seedling boxes in a narrow site. It is necessary to separate a large number of stacked seedling boxes and transfer them to a multi-stage receiving member.However, the seedling box automatic shelf difference device is too large to be easily mounted on a device that automatically unfolds seedling boxes, To pull out the stacked seedling boxes from the bottom,
The separation process and operation are complicated and it takes a long time for one cycle, and it is difficult to apply the method to automatic deployment of seedling boxes.

An object of the present invention is to provide a stacking box transfer apparatus which can easily and quickly separate stacked boxes one by one from the uppermost one and smoothly transfer them to a multi-stage receiving member. With the goal.

[0006]

As a specific means for solving the problems in the present invention, a stacking box separating device 91 which moves up and down with respect to the stacking box N is provided. A stacking box transfer device in which the uppermost box N is picked up and transferred to a multi-stage receiving member 79, wherein the stacking box separation device 91
However, it is configured to stop at an elevating position corresponding to any of the receiving members 79A, 80A of the multi-stage receiving members 79A, 80A and deliver the box N to the receiving members 79A, 80A. .

As a result, the uppermost box N of the stacking box N is picked up by the stacking box separating device 91, and an arbitrary receiving member 79A of the multi-stage receiving members 79A, 80A which is close to the elevation position of the stacking box separating device 91. , 80A can be easily transferred, and the lifting and lowering operation of the stacking box separating device 91 in the transfer operation can be reduced. Another specific means for solving the problem in the present invention is that the stacking box separating device 91 includes a hook 97 for hooking and lifting the uppermost box N of the stacking box N, and a box hooked and lifted by the hooking claw 97. The receiving body 100 which moves below the N and receives the box N and the pushing means 107 which pushes the box N received by the receiving body 100 toward the multi-stage receiving members 79A and 80A are provided. is there.

Thus, the uppermost box N of the stacked boxes N is hooked by the hooks 97 and received by the receiving body 100 without being raised and lowered, and the box N is pushed by the pushing means 107. And easily and quickly box N
Can be transferred to the multi-stage receiving member 79. Another specific means for solving the problem in the present invention is that, when the uppermost box N of the stacked boxes N is hooked and slightly lifted by the hanging claws 97, the receiver 100 moves below the lifted box N. Then, the user receives the box N.

Thus, after the uppermost box N of the stacked boxes N is hooked and lifted by the hook 97, the box N is immediately received by the receiver 100 and the box N is delivered to the multistage receiving members 79A and 80A. As a result, the box N can be transferred to the nearby receiving member 79 by the ascending and descending operation of the stacking box separating device 91 as much as possible, and the transfer operation can be performed more efficiently.

Another specific means for solving the problem in the present invention is a position sensor 163 for detecting receiving members 79A and 80A corresponding to the elevation position of the stacking box separating device 91.
Receiving member 79A detected by the position sensor 163,
And a box sensor 162 for detecting the box N on 80A. When the position sensor 163 detects the receiving members 79A and 80A and the box sensor 162 does not detect the box N on the receiving members 79A and 80A, Receiving members 79A, 80
That is, the box N is transferred to A by the stacking box separating device 91.

Thus, multi-stage receiving members 79A, 8
The box N can be transferred to the receiving members 79A and 80A located at the position closest to the elevating position of the stacked box separating device 91 of 0A, the lifting and lowering operation of the heavy box separating device 91 can be reduced, and the transfer can be performed efficiently. Become. Another specific means for solving the problem in the present invention is when the position sensor 163 does not detect the receiving members 79A and 80A or when the box sensor 16
2 detects the box N on the receiving members 79A, 80A,
The receiving members 79A, 8
Stacking box separator 91 without transferring box N to 0A
Is to be raised.

This makes it possible to reliably prevent double transfer of the box N to the receiving members 79A and 80A to which the box N has already been transferred. This also makes transfer work more efficient. Be transformed into

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a seedling box unfolding and collecting machine 1 which can be changed to a seedling box unfolding machine A and a seedling box collecting machine B as a seedling box to ground treatment machine. The seedling box unfolding and collecting machine 1 is configured such that two or more seedling boxes N on each side can be horizontally arranged in a horizontally elongated state while forming a sidewalk at the center, and can be unfolded side by side and simultaneously collected on each side.

The seedling box unfolding and collecting machine 1 includes a working unit 3
The work unit 3 is roughly divided into a deployment work unit 3A and a collection work unit 3.
B. In the following description, the front side is the side on which the seedling box N is deployed, and the working unit 3 moves backward when deployed and moves forward when collected.

The unfolding work unit 3A is shown in FIGS. 1 to 7, and includes a support frame 5 attached to the main unit 4, a vertical and horizontal transport mechanism (transport device) 6A having a rear portion pivotally connected to the support frame 5. , A tilting mechanism 7 provided on the support frame 5 side to tilt the vertical and horizontal transport mechanism 6A
And The collection work unit 3B is shown in FIGS. 1 and 8 to 11, and includes a support frame 5 attached to the main unit 4, a vertical and horizontal transport mechanism 6B having a rear portion pivotally connected to the support frame 5, and a support frame 5 side. And a tilt mechanism 7 for tilting the vertical and horizontal transport mechanism 6B, and a box pick-up mechanism 8 attached to the support frame 5 or the main unit 4 side.

The supporting frame 5 and the tilting mechanism 7 of the unfolding operation unit 3A and the recovery operation unit 3B are common, and the vertical and horizontal transport mechanisms 6A and 6B are alternatively used.
The box pick-up mechanism 8 is attached to the main unit 4
It is detachably fixed to the side. The main unit 4 includes a crawler-type traveling body 9, a box delivery unit 10 disposed on the traveling body 9, a box lifting / lowering mechanism 11 disposed across the box delivery unit 10, and a box lifting / lowering mechanism 11. It has a box loading / unloading mechanism 12 disposed on the rear side, and the support frame 5 and the tilting mechanism 7, which are common devices of the unfolding operation unit 3 </ b> A and the collection operation unit 3 </ b> B, are permanently installed on the traveling machine body 9.

In FIG. 1 to FIG.
The support frame 5 common to the collection unit 3B and the collection unit 3B is formed by combining a horizontal member and a vertical member into a rectangular frame shape in a plan view. It is detachably fixed to the traveling machine body 9, and pivotally supports a bent portion of a substantially L-shaped tilting member 18 in side view via brackets 17 on the front left and right sides.

The tilting member 18 has a substantially L-shaped lower part in the form of an arm and extends forward, and an upper part is connected to an actuator 19 such as a hydraulic cylinder. The actuator 19 is supported by the stay 16, but the box elevating mechanism 11
The arm may be tilted downward by extension. The support frame 5, the tilting member 18
The actuator 19 and the like constitute a tilting mechanism 7 of the vertical and horizontal transport mechanism (transport device) 6.

The support frame 5 may be formed by projecting a pair of left and right plate members from the traveling machine body 9 or may be formed by tilting members 18.
May be formed by one arm member, and the actuator 19 may be provided between the arm member and the support frame 5. 1 to 7
, The vertical and horizontal transport mechanism 6A of the unfolding operation unit 3A
Is a transport frame 21A in which steel shapes are assembled vertically and horizontally, and a transport frame 2A
Two or more pairs, for example, five pairs of roller conveyors 22 and a driving roller 23 on the front side of the transport frame 21A in the left and right directions within 1A.
, And two sets of front and rear horizontal conveyance means 25 arranged on the center side in the conveyance frame 21A,
A pair of right and left vertical transport means 24 and horizontal transport means 25 are provided, and are symmetrical with respect to the center line of the traveling machine body 9.

The pair of left and right vertical transport means 24 are separated from each other by a dimension for forming the passage L. The roller conveyor 22 of each of the vertical conveying means 24 employs an idler roller, and two laterally long seedling boxes N can be placed on one set of roller conveyors 22 in front and behind. A roller 28 is provided on a rotating shaft 27 supported via a bracket 26 on the front side of the motor 3. The rotating shaft 27 is connected to a motor 3 via a transmission means 29 such as a chain transmission means on the side surface of the transfer frame 21 </ b> A.
It can be driven at 0.

The roller conveyor 22 may be a driving roller, but in the front conveying means 24, only the front driving roller 23 is a driving unit for moving forward. The roller conveyor 22 on the center side is located at a position where the seedling box N is carried in from the box delivery means 10 on the rear side, and a stopper (not shown) is provided at a front portion thereof so that the seedling box N can move forward. The seedling box N carried in is prevented from falling.

At the front end of the bracket 26, a grounding wheel 31 which can extend on the extension of each set of roller conveyors 22 and can ground.
Is supported. The grounding wheel 31 supports the front end of the vertical transport means 24 and also serves to push and align the seedling boxes N laid on the ground from behind. The lateral transport means 25 supports the sprocket freely on a central shaft 25A,
A sprocket is fixed to each of the left and right shafts 25B, a chain 32 is wound around the center and left and right sprockets, and an engaging member for engaging the seedling box N is provided on the chain 32. It is arranged in the gap.

The power from the motor 25C is transmitted to the left and right shafts 25B in the reverse direction. When the left and right chains 32 move in the reverse direction, the front and rear two seedling boxes N carried thereon are moved. Push one box outward to the left and right. Therefore,
The horizontal transport means 25 moves the seedling box N carried thereon into one
By simply pushing the boxes, a predetermined number of seedling boxes N can be arranged on the vertical transport means 24, and the seedling boxes N are simultaneously placed on the right and left sides, so that the right and left weight balance in the vertical and horizontal transport mechanism 6A is well maintained.

A pair of left and right pivot shafts 33 are provided at the lower rear portion of the transport frame 21A. The pivot shafts 33 are engaged with the engaging portions 15 of the support frame 5 from above so as to be freely detachable. You. The pivot shaft 33 in the engaged state is a substantially L-shaped tilting member 18.
, But may be shifted back and forth or up and down. The tip of the arm portion of the tilting member 18 can be freely moved toward and away from the contact member 34 provided on the transport frame 21A, and the tilting member 18 is pivoted upward by the actuator 19 to move the transport frame 21A to the pivot shaft 33. The vertical and horizontal transport mechanism 6A is set to a substantially horizontal posture,
Is operated in reverse to swing the tilting member 18 downward, thereby lowering the transport frame 21A about the pivot shaft 33, and tilting the vertical and horizontal transport mechanism 6A to the front downward position where the grounding wheel 31 touches the ground.

When the grounding wheel 31 is in contact with the ground, the tilting member 1
When the tilting member 18 is further moved downward slightly to separate the tilting member 18 from the transport frame 21A, the vertical and horizontal transport mechanism 6A enters a floating state that follows the unevenness of the ground. The transfer frame 21A
Wheels are provided at both left and right ends or in the middle of the
The weight of A may be supported by the wheel, and the ground contact wheel 31 may be slightly raised from the ground. Also, the vertical and horizontal transport mechanism 6A can transport the seedling box N back and forth and laterally by using only one of the left and right sides.

The transport frame 21A and the vertical transport means 24 of the vertical and horizontal transport mechanism 6A are folded and connected to a position substantially corresponding to the side edge of the traveling machine body 9 and a position between the position corresponding to the lateral edge of the traveling machine body and the outer end. Part 35 is formed and the folding connection part 3
Numeral 5 is foldable around the front-rear axis, and the rotating shaft 27 is also connected via a universal joint at a position corresponding to the fold connection part 35.

By folding the left and right vertical and horizontal transport mechanisms 6A at two places in the direction of lifting the outer end side of the transport frame 21A upward, the working unit 3A is positioned within the front projection area of the main unit 4 as shown in FIG. And the whole seedling box unfolding and collecting machine 1 can pass if it is a frontage through which the main unit 4 can pass. Left and right vertical and horizontal transport mechanism 6
In A, the left and right positions of the folding connection portion 35 are slightly shifted,
When the left and right outer portions are folded, they are arranged vertically offset on the front side of the main unit 4 and do not collide.

When the width of the right, left, vertical and horizontal transport mechanism 6A is narrow, the folding connection portion 35 is formed at one of a position substantially corresponding to the side edge of the traveling machine body and a position between the position corresponding to the side edge of the traveling machine body and the outer end. You. 8 and 9, the collection work unit 3
The vertical and horizontal transport mechanism 6B of B is a transport frame 2 in which die steel is assembled vertically and horizontally.
1B and the central drive conveyor 37 in the transport frame 21B.
And vertical transport means 3 formed by side-side drive conveyor 38
9 and two sets of lateral transport means 40 arranged at positions overlapping the side drive conveyor 38 in the transport frame 21B.

The center side drive conveyor 37 and the side side drive conveyor 38 are symmetrical with respect to the center line of the traveling machine body 9, but the two sets of horizontal transport means 40 are shifted left and right by one box in the front and back. The right and left central drive conveyors 37 of the vertical transport means 39 transmit the power from one motor 41 by a transmission means such as a chain transmission means, and the roller shaft of each central drive conveyor 37 has an outer side portion. The side drive conveyor 38 is connected to the roller shaft of the side drive conveyor 38 via a joint so as to drive the side drive conveyor 38 synchronously.

The center drive conveyor 37 is formed slightly longer behind the side drive conveyor 38, so that the seedling boxes N can be carried out to the box delivery means 10 at the rear. A notch 42 is formed on the outer side of the tip of the conveyor 38, and the front side of the transport frame 21 </ b> B is
8 so as not to interfere with the seedling box N on the ground that is not collected.

The horizontal transport means 40 includes motors 43A, 43
A chain is wound around a pair of sprockets driven by B, and an engaging member that engages with the seedling box N is provided on the chain. The chain is disposed in a roller gap of each side drive conveyor 38, Seedling box N carried on it
Is pushed onto the central drive conveyor 37 by one box. The left seedling box N can be moved to the rear end of the left driving conveyor 38, but the right seedling box N is provided with a stopper 45 at the rear of the right lateral conveying means 40 so that it does not move backward any more. Has become. The stopper 45 may be fixed or movable back and forth.

The vertical and horizontal transport mechanism 6B is also a vertical and horizontal transport mechanism 6A.
Similarly to the above, the transport frame 21B and the vertical transport means 38 have a foldable connecting portion 35 formed at a position substantially corresponding to the side edge of the traveling machine body 9, and the foldable connecting portion 35 can be folded around the front-rear axis. A universal joint that connects the center side drive conveyor 37 and the side side drive conveyor 38 of the vertical conveying means 39 corresponds to the universal joint.

By folding the right and left vertical and horizontal transport mechanisms 6B in a direction to lift the outer end side upward at one place, the structure shown in FIG.
Similarly to the above, if the working unit 3B is within the front projection area of the main unit 4 and the frontage through which the main unit 4 can pass, the entire seedling box unfolding and collecting machine 1 can pass. The box pick-up mechanism 8 described later is made foldable by the foldable connecting portion 35 or is detached from the traveling machine body 9.

In the vertical and horizontal transport mechanism 6B shown in FIG. 9, four horizontally long seedling boxes N are simultaneously placed on the vertical transport means 39 and moved rearward, and the right two seedling boxes N are stopped by the stopper 45. After that, the two left seedling boxes N are moved to the rear end of the transfer frame 21B. Then, the two right seedling boxes N are moved toward the center by the right side lateral transport means 40, and the left two seedling boxes N are shifted rearward therefrom.
The seedling boxes N are moved to the center side by the left lateral conveying means 40, and a total of four seedling boxes N are arranged at the center of the conveying frame 21B in the front, rear, left and right, and the center side driving conveyor 37 is driven again in that state. The entire seedling box N out.

When four seedling boxes N are collected simultaneously, two right and left seedling boxes N at the same time, lateral transport of the left and right seedling boxes N is substantially symmetric, and the weight balance is improved. 8 to 11, the box pick-up mechanism 8 can pick up four seedling boxes N in one row at a time corresponding to the vertical and horizontal transport mechanism 6B, and protrudes the stay from the box elevating mechanism 11 or the support frame 5 or the like. A front frame 51 attached to the stay and projecting forward, a plurality of hooks 52 provided on the front frame 51 in the left-right direction, and the seedling box forcibly flipping the hooks 52 upward and rearward. N and a stopper means 57 for restricting the operation of the forced release means 56.
A retracting means 58 forcibly releasing the stopper means 57 and retracting the hooking tool 52;
Has a return means 59 for returning to a position at which the camera substantially drops, and a control means 65 for controlling the operation.

The hook 52 is attached to a support shaft 54 provided on the corner member 51A of the front frame 51 with respect to one seedling box N.
The book is freely and freely swingably fitted, and the lower part thereof forms a hooking claw 52A having a substantially L-shape (hook shape) in side view.
With the hook claw 52A substantially grounded (state A in FIG. 10), the main unit 4 is hooked from below onto the peripheral edge Na of each seedling box N by the forward movement of the upper part as the main unit 4 moves forward.

The state in which the hook 52 is hooked (FIG. 1)
(B), the seedling box N does not move, so that the seedling box N moves in an arc around the upper part, and the rear part of the seedling box N is lifted around the front part by the arc movement upward and backward (state C in FIG. 10). Then, the hook 52 is located above the front of the vertical and horizontal transport mechanism 6B in a state where the seedling box N is lifted (state C in FIG. 1). When the upper portion of the hook 52 further advances from this state, it swings by a certain angle or more. Then, the peripheral edge Na comes into contact with the upper part of the hook claw 52A, the hook claw 52A comes off from the peripheral Na by the leverage (natural departure angle, two states in FIG. 10), and the seedling box N falls. It is placed on the vertical and horizontal transport mechanism 6B.

The hook 52 is provided with a hook 52 by leverage.
Before the A deviates from the peripheral edge Na, that is, before the swing angle becomes the spontaneous detachment angle, the forcible detaching means 56 forcibly jumps up and detaches (forcible detachment angle). The mechanism and operation of forcibly detaching the hook 52 and returning it to the set position will be described below.

The collection work unit 3B is advanced to face the seedling boxes N arranged side by side. At this time, if the sensor 65A detects the flip-up member 60 or the sensor 65B does not detect the flip-up member 60, the hooking tool 22 is in the substantially hanging state A, so that the working unit 3B is moved forward without change. Then, the motor 64 is rotated forward by one through the control unit 66, the return means 59 is driven, the flip-up member 60 is pivoted downward by the set lever 59A, and the flip-up member 60 is operated by operating the stopper means 57. It is held at the set position and detected by the sensor 65A.

When the hook 52 is set in the substantially hanging state A, the collection operation unit 3B starts to advance and the hook 5
2 is dragged, and the hook claw 52A is hooked on each seedling box N that has been deployed. The rear of the seedling box N is lifted around the front end, and the hook 52 swings to a certain angle while drawing an arc trajectory upward and rearward around the support shaft 54, and immediately before the spontaneous departure angle is reached, the hook 52 Is the stopper member 62
Abuts on the release lever portion 62A and rotates it.

When the stopper member 62 is released, the jumping-up member 60 is shockedly jumped up by the elastic force of the urging member 61, and the entire hook 52 is forcibly jumped up.
A is removed from the seedling box N. As a result, the rear portion of the seedling box N is dropped onto the vertical and horizontal transport mechanism 6B. In this way, the seedling box N is lifted by the plurality of hooks 52 corresponding to each seedling box N, transferred onto the vertical and horizontal transport mechanism 6B, and the seedling box N is completely mounted on the vertical and horizontal transport mechanism 6B. After watching, the forward button is pressed, or after a set time from when the sensor 65B detects the flip-up member 60, the motor 64 is rotated by one forward direction, the return means 59 is driven, and the flip-up member 6 is moved by the set lever 59A.
0 is pushed down, the jumping-up member 60 is overrun, returned to the set position, the set lever 59A is raised, and the box pick-up mechanism 11 performs the seedling box pick-up operation again.

When the collection of the required seedling box N is completed, or when the work unit 3B is moved backward for some reason, when the backward button is pressed, the sensor 65A detects the jumping member 60 or the sensor 65B jumps. Raising member 6
If 0 is not detected, the hooking tool 52 is in the hanging state A. If the working unit 3B is moved backward as it is, the hooking tool 52 in the dragged state will bite into the ground. The motor 64 is rotated by one reverse to drive the retracting means 58.

The short rotating arm 64A swings the release lever 58A by reversing to push the release lever portion 62A of the stopper means 57, release the stopper member 62, and flip up the flip-up member 60, so that the full hook 52 Is forcibly lifted and evacuated. 2 to 9, the main unit 4
The upper box delivery means 10 are located in front of the traveling machine body 9 in a pair of right and left, and each box delivery means 10 is a roller type first moving means 6.
8, a chain-type second moving means 69, a roller-type receiving means 70, and a divider 73, all of which may be provided in the traveling body 9, but the chain-type second moving means 69 and the roller-type receiving means The means 70 is supported by the support frame 5.

The power from one central motor 71 is transmitted to the roller shafts of the first left and right moving means 68 via the chain transmission means and also to the second left and right moving means 69.
The second moving means 69 has an engagement piece 72 provided on the chain, and is configured to hook and push the front and rear ends of the seedling box N. The receiving means 70 is moved by the second moving means 69. Box N is received.

The box delivery means 10 includes a main unit 4
When the unfolding work unit 3A is mounted on the first transfer unit 68, the seedling box N placed on the first transfer unit 68 is pushed by the second transfer unit 69 onto the vertical and horizontal transport mechanism 6A, and the collection work unit 3B is mounted. In this case, the seedling box N sent by the vertical transfer means 39 of the vertical and horizontal transfer mechanism 6B is moved to above the first transfer means 68 via the second transfer means 69, and the seedling box N with the vertical and horizontal transfer mechanisms 6A, 6B is moved. Delivery.

The second moving means 69 to the first moving means 6
When the seedling box N moves to the position 8, the divider 73 located at the rear portion between the left and right second moving means 69 sets the left and right intervals of the seedling box N, and the seedling box N is properly regulated with respect to the inner and outer receiving members 79A and 80A. Modify to be in position. The box delivery means 10 comprises:
The first moving means 68 or the second moving means 69 may be formed to be long, and may be constituted by only one. The first moving means 68 and the second moving means 69 may be driven by separate motors. .

The box raising / lowering mechanism 11 is shown in FIGS. 1 to 5, 8 and 9, and is disposed so as to straddle the first moving means 68 of the right and left box delivery means 10, and has four seedlings in total. The box N can be moved up and down at intervals, and when the seedling box is unfolded, two seedling boxes N are supplied to each of the left and right first moving means 68, and at the time of collecting the seedling box, the left and right first moving means 68 are supplied. From seedling box N
Are picked up two at a time, and are delivered to a box loading / unloading mechanism 12 arranged on the rear side.

The box raising / lowering mechanism 11 includes a mechanism frame 76 fixed to the traveling machine body 9 and a box multi-stage lift supported by the mechanism frame 76 to raise and lower each of the left and right seedling boxes N one by one vertically. Means 77 and the whole seedling box N on the box multi-stage elevating means 77
And pusher means 78 for pushing out the rearward. The pusher means 78 is used only during the seedling box collection operation, and may be detachable from the mechanism frame 76.

The box multi-stage lifting / lowering means 77 is a horizontally arranged seedling box N
Has a left-right symmetrical structure so that it can be moved up and down at the same time as the front and rear two and the left and right simultaneously. The left and right structures have a pair of an inner chain 79 and an outer chain 80 at the front and rear, and are installed on the front and rear inner chains 79. Two sets of front and rear seedling boxes N are received by the receiving member 79A and the receiving members 80A provided on the front and rear outer chains 80.

The receiving members 79A and 80A are made of an L-shaped angle member when viewed from the front, and can be lowered and transferred to the first moving means 68 while holding the seedling box N. By doing so, the seedling box N on the first moving means 68 can be picked up while being raised. Inner / outer chain 7
9 and 80 are hung on a sprocket supported by a mechanism frame 76, while the inner chain 79 is provided with a box multi-stage elevating means 77.
Since there is little space for winding around the center part of the outer chain 80, as shown in FIG.

The pusher means 78 has an actuator 82 such as a hydraulic cylinder supported by a mechanism frame 76, and a pushing member 83 provided on a cylinder rod or the like of the actuator 82. The pushing member 8 is actuated by the actuator 82.
3 can be pushed between the inner and outer receiving members 79A and 80A, and the seedling box N lifted from the first moving means 68 by the box multistage elevating means 77 during the collection operation is moved backward in a multistage state with a vertical interval. It can be extruded all at once.

The box loading / unloading mechanism 12 disposed at the rear of the main unit 4 is substantially a mechanism dedicated to unfolding work.
At the time of the collection operation, it plays a role of forming an arrangement space for the nursery rack 85. However, the box in / out mechanism 12 moves the vehicle 9 during the unfolding operation.
You may leave from. Figures 1-3, 8, 9, 12-
In FIG. 18, the box loading / unloading mechanism 12 has four pillars 88 erected on a base 87 fixed to the traveling body 9 and
A support frame 86 is formed by connecting the upper portions, and a stack box separation device 91 is provided on the support frame 86,
The stacked seedling boxes N placed on the cradle 89 can be stored in the internal space.

The cradle 89 is for transporting the seedling boxes, on which two sets of front and rear seedling boxes N arranged horizontally are set, and the set includes a pair of left and right ones. In the four seedling boxes N in front, rear, left and right, a gap is formed between the boxes so that a hook 97 described later can enter. Guide columns 88A are arranged in the four columns 88, and the holding frame 92 is guided by the guide columns 88A so as to be able to move up and down. On the left and right sides of the support frame 86, a chain elevating means 93 is provided. The holding frame 92 is connected to a chain 93A of the chain elevating means 93, and the power from a motor 94 is transmitted through a transmission means 95. By driving the chain 93A by transmission, the holding frame 92 can be moved up and down in a horizontal posture.

The stacking box separating device 91 has a total of four
From the holding frame 92 which moves up and down with respect to the stack of the seedling boxes N, the claw holders 9 correspond to the left and right opposing sides of each seedling box N.
6 and drop the seedling box N on the nail holder 96 via the shaft 99.
A pair of hooks 97 for hooking the left and right opposite sides are pivotally supported. The hook 97 is formed by protrusions at both front and rear ends of the periphery N of the seedling box N.
a can be hooked.

The claw holder 96 is provided with a stopper 98 for restricting the hanging claw 97 from swinging downward from a substantially horizontal posture, and this stopper 98 constitutes a hanging claw posture control means. In FIG. 17, when the hanging claw 97 descends from above with respect to the peripheral edge Na of the opposite side of the seedling box N at the top of the stack, it swings upward and escapes (b state) when hitting the peripheral edge Na, and rises from below. The claw attitude control means is maintained in a substantially horizontal attitude and is caught on the peripheral edge Na (state c).

The claw holder 96 has an L-shaped receiving rail (receptor) 100 having a length extending over the set of seedling boxes N in the front-rear direction and having an L-shaped bracket 100a and a pivot 101.
Is pivoted through. In addition, the nail holder 96 and the like include
An operating member 102 including a solenoid, a motor, a hydraulic cylinder, and the like is provided, and the receiving rail 100 is caused to swing upward from a position indicated by a dotted line to a position indicated by a solid line in FIG. Further, by stopping the operation of the operating member 102 (reverse operation, return operation), the receiving rail 100 is returned from the position indicated by the solid line in FIG. Then, the operating member 102
Is controlled by a control unit (not shown), and operates after the hanging claws 97 hook the seedling box N at the top of the stack and slightly raise the seedling box N to swing the receiving rail 100,
The receiving rail 100 receives the two seedling boxes N in front and behind in place of the hook 97 (d in FIG. 17).
Status).

The left outer receiving rail 100 and the right inner receiving rail 100 are connected with the right outer rail material 100 and the left inner receiving rail 100 by interlocking rods 105, respectively. With inner receiving rail 1
00 interlocks and swings. The operating member 1
02 and the receiving rail 100 constitute the receiving means 104, and when the hook 97 engages with the seedling box N and lifts the seedling box N slightly, the operating member 102 operates to swing the receiving rail 100. As a result, the receiving rail (receiving body) 100 moves below the lifted box N, and the receiving rail 1
00 receives two seedling boxes N before and after instead of the hook 97 (state d in FIG. 17).

On the holding frame 92, a receiving rail 100
There are provided a pair of right and left pushing means 107 for pushing forward and backward the two seedling boxes N received before and after. This pushing means 1
07, a chain is wound around the front and rear shafts 108 and 109 supported on the holding frame 92 via the front and rear brackets, and the pushing plate 110 which comes into contact with the rear peripheral edge Na of the seedling box N on this chain.
, And driven by the motor 111 on the holding frame 92 via the power transmission means 112.

The pushing means 107 simultaneously pushes the front and rear two seedling boxes N on the receiving rail 100 forward, so that the inner and outer receiving members 79A, 80A located above the box multistage elevating means 77.
Transfer to As described above, the vertical and horizontal transport mechanisms 6A, 6B,
When the box delivery means 10, the box lifting / lowering mechanism 11, the box loading / unloading mechanism 12 and the like process the seedling boxes N as a set of two front and rear, processing can be performed at a higher speed than in the case of processing one seedling at a time.

As shown in FIGS. 15 and 19, the holding frame 9
A support arm 161 is protruded from the front end of the support arm 2, and a box sensor 162 and a position sensor 163 are provided on the support arm 161. The position sensor 163 is configured by a beard limit switch or the like, and is configured to detect and / or turn on one or both of the receiving member 79A and the receiving member 80A corresponding to the vertical position of the stacking box separating device 91. The box sensor 162 is configured by a reflection photoelectric sensor or the like, and detects the seedling box N on the receiving members 79A and 80A detected by the position sensor 163 and turns on the seedling box N.

The stacking box separating device 91 is controlled by a control unit (not shown), and a multi-stage receiving member 79 is provided.
A, 80A, stops at the elevating position corresponding to any of the receiving members 79A, 80A, and receives the receiving members 79A, 80A.
It is configured to transfer the seedling box N to the top. That is, when there are two seedling boxes N received before and after on the receiving rail 100, the stacking box separating device 91 sets the receiving members 79A, 80A.
If the position sensor 163 is turned on and the box sensor 162 is turned off during the ascent, the ascent operation of the stacked box separating device 91 is stopped. At the same time, the pushing means 107 is driven via the power transmission means 112, and the pushing means 107 simultaneously pushes the front and rear two seedling boxes N on the receiving rail 100 forward, thereby stacking the seedling boxes N in a stacking box. The sheet is transferred to the inner and outer receiving members 79A and 80A corresponding to the elevation position of the separation device 91. Further, the position sensor 163 is connected to the receiving member 79A,
When not detecting 80A or when the box sensor 162 detects the seedling box N on the receiving members 79A and 80A, the stacking box separating device 91 does not transfer the seedling box N to the receiving members 79A and 80A. The stacking box separating device 91 is further raised.

The box loading / unloading mechanism 12 including the stacking box separating device 91 uses a hydraulic cylinder in place of the chain lifting / lowering means 93, or uses a lift or the like that lifts the pedestal 89 instead of lifting / lowering the holding frame 92. The stacking seedling box N is raised and lowered, the claw attitude control means is formed by a solenoid or the like to change the hook 97 from a substantially horizontal attitude to a retracted attitude, and the pushing means 107 is hydraulically or pneumatically operated like the pusher means 78. It can also be formed by a cylinder.

During the collection operation, the box loading / unloading mechanism 12 raises the stacking box separating device 91 to the highest position.
A seedling rack 85 is stored and placed on a base 87 below the base 87.
The seedling raising shelf 85 has a receiving bar 85A that has substantially the same number of stages as the box multi-stage lifting / lowering means 77 and faces the same.
8, the front, rear, left and right extruded from the box multi-stage lifting / lowering means 77
The seedling boxes N are simultaneously received at all stages and taken out of the machine by a forklift or the like.

Next, the seedling box developing machine 1 shown in the above embodiment is set in the main unit 4 so that the developing work unit 3A can be used, and the seedling box developing machine A is used. The method will be described. A total of 4 seedling boxes N
For example, a cradle 89 placed in a state of being stacked in 30 stages
Is transported by a forklift and inserted into the box access mechanism 12, and the seedling box deployment machine A is moved to the end of the deployment area in the house.

The chain lifting / lowering means 93 of the box loading / unloading mechanism 12 is operated, and the upper / lower left / right
The seedling boxes N are picked up, the seedling boxes N transferred to the receiving means 104 are pushed forward by the pushing means 107, and supplied to the box elevating mechanism 11. At this time, when the hanging claws 97 hook the seedling box N at the top of the stacked seedling boxes N and slightly raise the seedling box N, the operating member 102 operates and the receiving rail 10
0 is swung so that the receiving rail 100 receives the two front and rear seedling boxes N in place of the hooks 97 (d state in FIG. 17).

After the two seedling boxes N are received by the receiving rail 100, as shown in the flow chart of FIG. 20, the chain lifting / lowering means 93 of the box loading / unloading mechanism 12 is operated to operate the stacking box separating device 91. While ascending, the inner and outer receiving members 79A of the box multi-stage elevating means 77 by the box sensor 164,
The seedling box N on 80A is detected and the position sensor 16
3, inner and outer receiving members 79A and 80A of the box multi-stage elevating means 77
Is detected, the position sensor 163 is turned on and the box sensor 16
2 is turned off, the lifting of the stacking box separation device 91 is stopped, and the pushing means 107 is driven via the power transmission means 112. The pushing means 107 is connected to the front and rear two seedling boxes on the receiving rail 100. N at the same time, the inner and outer receiving members 79A, 8 located above the box multi-stage elevating means 77.
Transfer to 0A.

Accordingly, the operating member 102, the position sensor 163, the box sensor 162, etc., which are constituted by a solenoid or the like, are not provided, and the stacking box separating device 91 is lifted after the hook 97 hooks the uppermost seedling box N. After being raised to the position, the seedling box N is pushed forward by the pushing means 107, and the inner and outer receiving members 79A located above the box multistage elevating means 77,
80A, the seedling box N is always supplied from the box access mechanism 12 to the box elevating mechanism 11 at a high position. When the amount of is small, it takes time to lower the seedling box N in the next step, and it takes time to move up and down the stacking box separating device 91. However, there are the operating member 102, the position sensor 163, the box sensor 162, and the like. Therefore, at any position above the stacked seedling boxes N, the seedling boxes N lifted by the hooks 97 can be received by the rails 100 and pushed by the pushing means 107 to the box multistage elevating means 77. Therefore, the stacked seedling boxes N can be easily and quickly separated one by one from the uppermost one and can be smoothly transferred to the multistage receiving members 79A, 80A.

The box raising / lowering mechanism 11 receives the seedling boxes N sequentially supplied from the box loading / unloading mechanism 12 with the members 79A and 80A, and intermittently descends and moves the lowermost position to the first moving means 68. The first moving means 68 supplies the received seedling box N to the vertical and horizontal transport mechanism 6A via the second moving means 70. Seedling boxes N carried in the left and right two sets before and after
Then, when the next seedling box N enters, it is sequentially pushed and moved to the left and right ends of the vertical transport means 24.

When the seedling box N is supplied to the entire area up to the left and right ends of the vertical transport means 24, the tilting mechanism 7 operates to tilt the vertical and horizontal transport mechanism 6A forward and downward, and deposits it on the ground, and all the seedlings thereon The box N is slid down, and the driving roller 23 is driven to reliably transfer the rear seedling box N to the ground. This delivery is performed while the traveling body 9 moves backward. Thereby, for example, five seedling boxes N are arranged on the left and right sides of the passage L, for example.

Next, a method for collecting seedling boxes when the seedling box collecting machine B is set in the main unit 4 so that the collecting work unit 3B can be used in the main unit 4 will be described. The traveling machine 9 is advanced in a state where the vertical and horizontal transport mechanism 6B is inclined downward, and the hook 52 of the box pick-up mechanism 8 is moved.
Then, the peripheral edges Na of the four seedling boxes N are hooked side by side, and the traveling machine 9 is further advanced to lift the rear end of the seedling box N and transferred to the vertical and horizontal transport mechanism 6B.

While the vertical and horizontal transport mechanism 6B is in a substantially horizontal posture by the tilting mechanism 7, the vertical transport means 39 is operated and the four seedling boxes N
Is moved backward, the two seedling boxes N on the left
While the right two seedling boxes N stop moving at the stopper 45 in the middle of the vertical conveying means 39 and operate the left and right horizontal conveying means 40 in this state, the left and right seedling boxes N It is gathered in the center, and two sets of front and rear are made in pairs.

Then, the vertical transport means 39 is operated again to move the total of four seedling boxes N backward by the second moving means 69, and the position of the seedling boxes N is corrected by the divider 73 so that the seedling boxes N are returned to their normal positions. It is sent to the first moving means 68 and supplied to the lower part of the box lifting mechanism 11. The box lifting / lowering mechanism 11 receives the seedling box N
Is received by intermittently raising the receiving members 79A and 80A, and is pushed backward by the pusher means 78 in a state where the seedling box N is inserted in all the stages.

A seedling rack 85 is placed in the box access mechanism 12 in advance, and the seedling box N is mounted on all the receiving bars 85A of the seedling rack 85.
To store. The seedling rack 85 is lowered by a forklift and transported to a required position. Note that the present invention is not limited to the above embodiment, and can be variously modified. For example, the seedling box unfolding machine A and the seedling box collecting machine B are configured such that a horizontally long seedling box N is set in front and rear two sets, and a pair of right and left seedling boxes N is processed as a set of four in total. However, the seedling box N may be arranged vertically long, or a pair of left and right devices may be constituted by only one of them.

The box N to be transferred is not limited to the seedling box, but may be another box for transportation.

[0075]

According to the present invention described above, the uppermost box N of the stacking boxes N is picked up by the stacking box separating device 91, and the stacking box separating device 91 of the multistage receiving members 79A and 80A is taken out. Any receiving member 79 close to the elevating position
A and 80A can be easily transferred, and the stacked boxes N can be easily and quickly separated from the uppermost one and smoothly transferred to the multi-stage receiving members 79A and 80A.

[Brief description of the drawings]

FIG. 1 is an explanatory side view showing an entire seedling box-to-ground treatment machine of the present invention.

FIG. 2 is a side view of the entire seedling box unfolding machine.

FIG. 3 is a plan view of the seedling box unfolding machine.

FIG. 4 is a front view of the seedling box unfolding machine.

FIG. 5 is a plan view of a main part of the seedling box unfolding machine.

FIG. 6 is a side view of the support frame and the tilting mechanism.

FIG. 7 is a plan view of a support frame and a transport frame.

FIG. 8 is a side view of the entire seedling box collection machine.

FIG. 9 is a plan view of the seedling box collection machine.

FIG. 10 is a side view of the box pick-up mechanism.

FIG. 11 is an explanatory front view of the box pick-up mechanism.

FIG. 12 is a rear view of the box access mechanism.

FIG. 13 is an enlarged rear view of a main part of the box access mechanism.

FIG. 14 is a plan view of the box access mechanism.

FIG. 15 is a side view of the box access mechanism.

FIG. 16 is a rear view of a main part of the stacked box separating device.

FIG. 17 is an explanatory diagram of a stacking box separating operation.

FIG. 18 is a rear view in which a nursery rack is arranged in the box access mechanism.

FIG. 19 is a schematic side view of a box sensor and a position sensor.

FIG. 20 is a flowchart for explaining the operation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seedling box unfolding and collecting machine 3 Working unit 4 Main unit 79A Multi-stage receiving member 80A Multi-stage receiving member 91 Stacking box separating device 97 Hanging claw 100 Receiving rail (receiving body) 107 Pushing means 162 Box sensor 163 Position sensor N Seedling box

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takashi Tajima 64 Ishizu-Kitacho, Sakai-shi, Osaka F-term in Kubota Sakai Works (reference) 2B027 ND03 NE09 QA05 TA04 TA22 TC07 TC09 TC14 TC15 TC18 TC19 TC25

Claims (5)

[Claims] 1. A stacking box separation device (91) that moves up and down with respect to a stacking box (N) is provided, and the uppermost box (N) of the stacking box (N) is moved by the stacking box separation device (91). A stacking box transfer device for picking up and transferring to a multi-stage receiving member (79), wherein the stacking box separating device (91) is an arbitrary one of the multi-stage receiving members (79A, 80A). Receiving member (79A,
80. A stacking box transfer device characterized in that it is configured to stop at the elevating position corresponding to 80A) and deliver the box (N) to its receiving member (79A, 80A). 2. A hook (97) for hooking and lifting the uppermost box (N) of the stack box (N) on the stack box separating device (91), and a box hooked and lifted by the hook (97). (N) and a pusher for pushing the box (N) receiving the box (N) and the box (N) received by the receiver (100) toward the multistage receiving members (79A, 80A). 2. The stacking box transfer device according to claim 1, further comprising a moving means (107). 3. The receiving body (100) moves below the raised box (N) when the uppermost box (N) of the stacked boxes (N) is hooked and slightly lifted by the hanging claws (97). 3. The stacking box transfer apparatus according to claim 2, wherein the receiving box (N) is received. 4. A position sensor (163) for detecting a receiving member (79A, 80A) corresponding to an elevating position of the stacking box separating device (91), and a receiving member (79A, 80A) detected by the position sensor (163). A box sensor (162) for detecting the upper box N is provided, and a position sensor (163) is provided.
Detects the receiving member (79A, 80A) and the box sensor (162) does not detect the box (N) on the receiving member (79A, 80A), the receiving member (79A, 8A).
The stacking box transfer device according to any one of claims 1 to 3, wherein the boxes (N) are transferred to the stacking box separation device (91) at 0A). 5. When the position sensor (163) does not detect the receiving member (79A, 80A) or the box sensor (1).
When the box (N) is detected on the receiving member (79A, 80A) by the stacking box separating device (91), the box (N) is not transferred to the receiving member (79A, 80A). 5. The stacking box transfer device according to claim 4, wherein the separating device (91) is raised.