JP4121072B2 - Loading device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a loading device for stacking stacked objects in a plurality of stages.
[0002]
[Prior art]
For example, in the field of logistics, etc., folding containers that store products at distribution centers are stacked in multiple stages according to delivery destinations and loaded onto carts, etc., and carts equipped with folding containers are placed on trucks to delivery destinations. It is transported.
[0003]
Conventionally, in a loading device that stacks stacked items such as folding containers in a plurality of stages, the loaded items are loaded from the loading unit, and the loaded items are transferred onto the lifting unit by the transfer unit, and then moved up and down. Stacking the products for a predetermined number of stages on the section, stacking the stacked products for the predetermined number of stages, carrying them out of the lifting part, and then sequentially loading them from the lifting part A predetermined number of object groups are reserved, and a plurality of stacked product groups of the reservation parts are respectively mounted on the pallet.
[0004]
In addition, when two loading parts, transfer parts, and lifting parts are arranged in parallel, and the loading operation of the load is performed in parallel at two locations, the loading capacity can be enhanced (for example, Patent Documents). 1).
[0005]
[Patent Document 1]
JP-A-8-73036 (pages 5 and 6, FIGS. 1 and 5)
[0006]
[Problems to be solved by the invention]
However, the conventional loading apparatus requires two loading parts, transfer parts, and lifting parts in order to increase the loading capacity, and there is a problem that the structure becomes complicated and large.
[0007]
  Therefore, in order to simplify and reduce the size of the structure, for example, the carry-in unit and the transfer unit are made common, and a plurality of products loaded by the carry-in unit are held at a time by the transfer unit to Although it is conceivable to transfer to the lifting / lowering unit at a time, when handling different kinds of stacked items with different heights, the stacking height differs for each lifting / lowering unit, so the stacking height differs.RuA plurality of loads cannot be stacked at a time on a plurality of lifting parts, that is, only a load of the same height can be stacked on a plurality of lifting parts.
[0008]
The present invention has been made in view of the above points, and has a high loading capacity, a simple structure and a small size, and a multi-product simultaneous loading in which different kinds of loaded items having different heights can be loaded at the same time. An object is to provide an attachment device.
[0009]
[Means for Solving the Problems]
  The loading device according to claim 1 is:Heterogeneous with different heightSequentially carry the loadOneA plurality of lifting means that can be moved up and down independently and stacked with a plurality of stages, and a plurality of upper surface positions of the uppermost stacked goods stacked for each of the lifting means A loading unit that has detection means and allows the loading of the load by positioning the upper surface position of the load on the uppermost stage at a certain loading reference height for each lifting means, and loading by the loading unit Multiple shipmentsRespectivelyHoldpluralHolding meansAnd moving means for simultaneously moving these holding means between the carry-in part and the loading partHaveIn the carrying-in part, the plurality ofMultiple items held by the holding meansMove to the loading part at the same time andIt is possible to load each on multiple lifting means.OneA transfer unit; and a carry-out unit configured to receive and carry out a plurality of stacked product groups stacked in a plurality of stages by a plurality of lifting means of the loading unit.
[0010]
In this configuration, the upper surface position of the uppermost product stacked for each lifting means that can be moved up and down independently is detected by a plurality of detection means, and the uppermost product for each lifting means is detected. In order to allow the loading of the load by positioning the upper surface position of the load at a certain loading reference height, a plurality of loads loaded by the loading portion are used without using a plurality of loading portions and transfer portions. It is held by the holding means of the transfer section, and these multiple items can be stacked on each of the plurality of lifting means, and the loading capacity is high, the structure is simple and small, but different types of products with different heights. It is possible to handle multiple types of simultaneous loading with appendages.
[0011]
The loading device according to claim 2 is the loading device according to claim 1, wherein the detection means is arranged corresponding to the reference height for loading, and the loading object at the uppermost stage is lowered when the loading object is lowered by the lifting means. A first sensor for detecting that the upper surface of the stacked product has reached the reference loading height by detecting the passage of the top, and a loading reference height disposed below the first sensor. It has the 2nd sensor which detects the uppermost load thing located in.
[0012]
In this configuration, the detection means detects the passage of the uppermost load when the load is lowered by the elevating means by the first sensor arranged corresponding to the loading reference height. Detecting that the upper surface position of the stacked product has reached the loading reference height, the uppermost loading is positioned at the loading reference height by the second sensor arranged below the first sensor. In order to detect an object, it is possible to reliably confirm that the uppermost stacked object is positioned at the reference loading height.
[0013]
According to a third aspect of the present invention, in the loading device according to the first or second aspect, a plurality of stacked products to be unloaded from the unloading means are supplied to a cart supply position on the side of the unloading means. A mounting portion that can be mounted on a cart, the mounting portion having a plate that can receive a plurality of stacked products from the unloading means, and the plate is stacked from the unloading means. Plate means for moving between a receiving position for receiving the group and a cart position advancing on the cart supplied to the cart supply position; and a plurality of stacked packages on the unloading means on the receiving position plate. Transfer means capable of being transferred respectively, and presser means for pressing the stacked product group on the plate advanced onto the cart and mounting the stacked product group on the cart by the withdrawal of the plate from the cart And having Is shall.
[0014]
In this configuration, a plurality of stacked products to be carried out from the carrying-out means are respectively transferred onto the plates of the plate device by the transferring means, and the plates are advanced onto the cart supplied to the cart supply position. In order to mount a plurality of stacked products on the plate in the cart by holding the stacked products on the plate that has advanced on the cart with the pressing means and withdrawing the plate from the cart, For example, even if there are protrusions on the cart, a plurality of stacked products can be mounted on the cart.
[0015]
According to a fourth aspect of the present invention, there is provided the loading apparatus according to the third aspect, wherein the mounting portion is capable of moving the cart at the cart supply position up and down and mounting the stacked products on the plate on the cart. It has a cart raising / lowering means for raising the cart.
[0016]
In this configuration, the cart at the cart supply position is raised when the cart stack is mounted on the cart by the cart lifting / lowering means, so that the cart is loaded or unloaded at a low position such as the floor surface. The height of the cart can be adjusted to the height at which the stacking load group can be mounted from the plate, corresponding to the unloading part and the plate device, etc., where there are limits to lowering .
[0017]
The loading device according to claim 5 is the loading device according to claim 3 or 4, wherein the cart has fences erected at both ends intersecting with the advancing and retreating direction of the plate, and the mounting portion is the plate Has a fence opening means for opening the fences at both ends when entering the cart.
[0018]
In this configuration, when the plate loaded with the stacked products is entered on the cart, even if the fences standing on both ends of the cart are inclined to the inside of the cart, the cart is opened by the fence opening means. Since the fences at both ends of the door are respectively opened, it is possible to securely mount the stacked product group on the cart without interfering with the fence.
[0019]
The loading device according to claim 6 is the loading device according to any one of claims 3 to 5, wherein the loaded cart loaded with the stacked product group is fed from the cart supply position and then stacked. First cart moving means for simultaneously supplying an empty cart carrying an attachment group to a cart supply position, and second cart moving means for supplying an empty cart to the first cart moving means It is equipped with.
[0020]
In this configuration, the first cart moving means feeds the already loaded cart loaded with the stacked product group from the cart supply position, and then the empty cart cart loaded with the stacked product group. The supply to the supply position can be efficiently performed at the same time. Further, an empty cart is carried into the second cart moving means, and the empty cart is transferred from the second cart moving means to the first cart moving means. In order to supply the cart, it is not necessary to match the cart loading with the operation of the first cart moving means, and the cart is prevented from being pulled out so that the cart is not supplied to the cart supply position.
[0021]
According to a seventh aspect of the present invention, there is provided the loading apparatus according to any one of the third to sixth aspects, further comprising a braking unit that brakes the loaded cart that is fed from the cart supply position.
[0022]
In this configuration, since the loaded cart sent out from the cart supply position by the braking means is braked, the loaded and heavy cart is prevented from moving unnecessarily due to the feeding inertia.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0024]
FIGS. 1 and 2 show a loading device 11, which stacks a plurality of folding containers 12 as loaded items that are carried in one row from the upstream process, respectively. When the stacking of the number of stages is completed, the stacking container group 13 as a plurality of stacked loading group is stacked on the cart 14 and the cart 14 loaded with the stacking container group 13 is sent out. Yes.
[0025]
The folding container 12 is displaceable between an assembled state assembled in a rectangular cross-section box shape whose lateral length is longer than the width and a folded state folded so that the vertical dimension is thin. An edge 15 that protrudes laterally from the outer surface is provided. There are types of the folding container 12 having the same length and width in the horizontal direction and different heights, and in any type, the folding container 12 at the upper end is placed on the upper side of the folding container 12 at the lower stage. Stacking is possible with the lower part entering, and identification information such as a barcode is displayed on the outer surface of the folding container 12. The loading device 11 supports the stacking of different types of folding containers 12 having different heights.
[0026]
The cart 14 has a rectangular base 16 that allows two rows of folding containers 12 to be stacked and stacked in the longitudinal direction, and a plurality of wheels 17 that can run on the lower surface of the base 16 are attached. Projections 18 are attached to the four corners of the lower surface of the base 16, and fences 19 are erected on both ends of the base 16 in the longitudinal direction.
[0027]
Then, the loading device 11 includes an airframe 21, a carry-in unit 22 that sequentially carries in a plurality of folding containers 12 that are sent from the upstream process in a predetermined order, and a plurality of folding containers 12 that are carried in the carry-in unit 22. Transfer unit 23, a plurality of folding containers 12 respectively transferred by the transfer unit 23 are stacked in a plurality of rows, and a stacking unit 24 is stacked in a plurality of stages. The unloading means 25 for unloading the plurality of stacked container groups 13, the mounting section 26 for mounting the multiple stacked container groups 13 unloaded by the unloading means 25 on the cart 14, and the cart transport for supplying and unloading the cart 14 Part 27.
[0028]
As shown in FIG. 3, the carry-in unit 22 is configured by a roller conveyor, and a plurality of carry-in positions A into which a plurality of folding containers 12 are carried in on the downstream side in the transport direction are set. An information reading unit 31 such as a barcode reader that reads identification information such as a barcode of the folding container 12 is arranged upstream of the loading position 22 in front of the loading position A and detects the loading of the folding container 12. A carrying-in detection sensor 32 and a stopper 33 for stopping the folding container 12 are arranged to be able to advance and retreat. Further, at each loading position A, a loading detection sensor 34 for detecting the loading of the folding container 12 is arranged, and a stopper 35 for stopping the folding container 12 at each loading position A is arranged so as to be able to advance and retreat. Yes.
[0029]
Further, as shown in FIGS. 3 to 5, the transfer unit 23 includes a plurality of holding means 41 that holds the folding containers 12 carried into the respective carry-in positions A, and the plurality of holding means 41 that are loaded into the carry-in unit 22. A moving means 42 for moving between the plurality of loading positions A and the plurality of loading positions B of the loading section 24 is provided.
[0030]
Each holding means 41 has an elevating cylinder 43, and a pair of opening / closing cylinders 45 is attached to an elevating body 44 that is moved up and down by the elevating cylinder 43, and a pair of opening / closing cylinders 45 that can be opened and closed with respect to each other. An arm 46 is attached. When the pair of arms 46 are closed, the folding container 12 can be gripped from both sides, and a claw portion 47 is provided at the lower end of each arm 46 to be hooked and supported below the edge 15 of the folding container 12. Has been. On both sides of each arm 46, a substantially L-shaped anti-vibration member 48 that is opposed to both end surfaces of the holding folding container 12 in the longitudinal direction is attached, and the anti-vibration member 48 allows the folding container 12 to swing during transfer. regulate.
[0031]
The moving means 42 has a moving body 49 to which the lifting cylinder 43 of each holding means 41 is integrally attached, and one side of the moving body 49 is engaged with a guide rail 50 attached to the airframe 21 side so as to be able to roll. The other side is movably supported by a plurality of rollers 51 and the other side is movably supported by an LM guide 52 attached to the body 21 side. A belt 53 stretched along the moving direction is connected to the moving body 49 along the moving direction. The belt 53 is rotated by driving of the moving motor 54 so that the moving body 49 is stacked with the loading position A. Reciprocates between the attachment position B.
[0032]
Further, the loading unit 24 can be moved up and down independently at each loading position B, and a plurality of lifting and lowering means 61 for stacking the folding containers 12 respectively, and the uppermost folding container 12 stacked for each of the lifting and lowering means 61. A plurality of detection means 62 for detecting the upper surface position of the first and second positioning means 63 for positioning the overlapping position of the folded folding container 12 and the folding container 12 to be stacked.
[0033]
Each elevating means 61 has a fork body 64, and a plurality of plate-like forks 65 projecting from the loading position B so that the folding container 12 can be placed on the fork body 64. Yes. The fork body 64 is supported on both sides of the fork body 64 by a plurality of rollers 68 that are rotatably engaged with guide rails 67 attached to the vertical frame 66 on the side of the machine body 21. A sprocket 70 that is rotationally driven by an elevating motor 69 is arranged on the upper part of the vertical frame 66. One end of a chain 71 that engages with the sprocket 70 is connected to the fork body 64, and the other end is a mass with the fork body 64. It is connected to a weight 72 for balancing. Therefore, each elevating means 61 moves up and down the fork body 64 by driving the elevating motor 69.
[0034]
The detecting means 62 includes a first sensor 73 and a second sensor 74 that detect the folding container 12 for each lifting means 61. The first sensor 73 is arranged corresponding to a predetermined loading reference height at which the folding container 12 is stacked, and the uppermost folding is performed when the lifting means 61 on which the folding container 12 is stacked by the transfer unit 23 is lowered. By detecting the passage of the container 12, it is detected that the upper surface position of the uppermost folding container 12 has reached the loading reference height. The second sensor 74 is disposed below the first sensor 73 and detects the uppermost folding container 12 positioned at the loading reference height.
[0035]
The positioning means 63 includes a spacer 75 that is positioned between the plurality of folding containers 12 and attached to the machine body 21 side, and a positioning cylinder 76 that is attached to the machine body 21 side so as to face the four sides of the folding container 12 respectively. A plurality of folding containers 12 are sandwiched from four sides by lock plates 77 that are advanced and retracted by the operation of the positioning cylinders 76, that is, the folding containers 12 are locked on four sides and stacked with the loaded folding containers 12. Position the overlapping position with 12.
[0036]
Further, as shown in FIG. 6, the carry-out means 25 is constituted by a roller conveyor, and a part of the conveyor frame is divided corresponding to the position of the fork 65 of each lifting means 61 to form a gap portion 25a. Each fork 65 descends from the conveying surface of the unloading means 25 through each gap portion 25a and can be loaded onto the unloading means 25 of the stacked container group 13 stacked on the forks 65. The stacked container group 13 transferred by the rotation is carried out in the downstream direction.
[0037]
Further, as shown in FIGS. 6 and 7, the mounting unit 26 has a stopper unit 81 for mounting a plurality of stacked container groups 13 conveyed by the unloading unit 25 on the cart 14 supplied by the cart supply unit 27. , Plate means 82, transfer means 83, presser means 84, fence opening means 85, and the like.
[0038]
The stopper means 81 has a stopper 86 for stopping the plurality of stacked container groups 13 transported by the unloading means 25 at a predetermined alignment position C. The stopper 86 can be moved forward and backward by an operation of the stopper cylinder 87 to an advanced position where the stacked container group 13 is stopped and a retracted position where the folding container 12 or the stacked container group 13 is allowed to pass.
[0039]
As shown in FIGS. 6 and 10 to 12, the plate means 82 is arranged at an alignment position C of the unloading means 25 and a cart supply position D3 to which the cart 14 is supplied by the cart transport section 27 at one side position of the alignment position C. And a plate 88 disposed at a receiving position between the two. The plate 88 is formed in a shape that can simultaneously receive a plurality of stacked container groups 13 from the unloading means 25 and is supported at a height position. The plate 88 is removed from the unloading means 25 by the operation of the plate cylinder 89. It reciprocates between the receiving position for receiving the stacked container group 13 and the cart position that advances on the cart 14 supplied to the cart supply position D3.
[0040]
As shown in FIGS. 6 and 10, the transfer means 83 has a pusher 90 arranged at the other side position of the alignment position C of the carry-out means 25. The pusher 90 is provided with a plurality of pusher frames 91 that push the respective stacked container groups 13 on the unloading means 25 in contact with each other from the lowermost stage to the uppermost stage, and by the operation of the transfer cylinder 92, The pusher 90 advances onto the unloading means 25 and pushes the plurality of stacked container groups 13 on the unloading means 25 onto the plate 88 at the receiving position and transfers them respectively.
[0041]
As shown in FIGS. 6, 7, and 12, the holding means 84 has holding bodies 93 on both sides that are respectively arranged on both sides of the plate 88 at one side position of the alignment position C of the unloading means 25. These presser bodies 93 are swingable about a fulcrum shaft 94, and by the operation of the presser cylinder 95, the presser body 93 is moved to a position where the stacked container group 13 on the plate 88 which has advanced on the cart 14 is pressed and to both sides of the plate 88. It is possible to advance and retreat between the retracted retreat positions, and the stacked container group 13 is mounted on the cart 14 by pushing the stacked container group 13 on the plate 88 that has advanced onto the cart 14 and withdrawing the plate 88 from the cart 14 Let
[0042]
The fence opening means 85 has fence opening plates 96 on both sides disposed on both sides of the plate 88 at one side position of the alignment position C of the unloading means 25. Each of the fence opening plates 96 is supported by a first cylinder 97 that moves each of the fence opening plates 96 forward and backward in a direction in which the shelf 19 of the cart 14 opens, and each fence opening plate 96 via the first cylinder 97. It is supported by a second cylinder 98 that moves 96 forward and backward with respect to the inside of the fence 19 of the cart 14.
[0043]
Further, as shown in FIGS. 2 and 10, the cart transport unit 27 is arranged in parallel with the unloading means 25, and a cart carry-in position D1 and a cart standby position D2 along the cart transport direction in which the cart 14 is transported. A card supply position D3 and a cart unloading position D4 are set.
[0044]
A base portion 101 on which the cart 14 rides is disposed between the cart loading position D1, the cart standby position D2, the card supply position D3, and the cart unloading position D4, and guides on both sides for guiding both sides of the cart 14 on both sides of the base portion 101. A rail 102 is disposed, and a wheel rail 103 that guides the wheel 17 of the cart 14 is disposed on the platform 101. On the carry-in side and the carry-out side of the base part 101, a slope 101a on which the cart 14 rides on the base part 101 and a slope 101b on which the cart 14 descends from the base part 101 are arranged.
[0045]
A first slide cylinder 104 serving as a first cart moving means is disposed along the other side of the cart standby position D2 and the card supply position D3. By the operation of the first slide cylinder 104, the first slide cylinder 104 is moved from the cart supply position D3. The pushing member 105 that sends the cart 14 to the cart discharge position D4 and the pushing member 106 that sends the cart 14 from the cart standby position D2 to the cart supply position D3 simultaneously move forward and backward in the cart moving direction. The pushing members 105 and 106 are rotatably supported on the first slide cylinder 104 side with the shafts 105a and 106a as fulcrums, respectively, and the tips of the pushing members 105 and 106 are transported to the cart by a torsion spring (not shown). When the pusher members 105 and 106 move in the cart transport direction, they abut against the cart 14 and push in the cart transport direction, and the pusher members 105 and 106 move to the cart transport direction. When moving in the direction opposite to the conveying direction, the pushing members 105 and 106 that are in contact with the cart 14 are configured to rotate against the bias and pass through the side of the escape cart 14. The cart 14 can be sequentially fed by the members 105 and 106.
[0046]
A second slide cylinder 107 as second cart moving means is disposed along one side of the cart carry-in position D1, and the operation of the second slide cylinder 107 causes the pushing member 108 to move in the cart conveyance direction. Move back and forth. The pushing member 108 is rotatably supported on the second slide cylinder 107 side with the shaft 108a as a fulcrum, and the tip of the pushing member 108 is advanced in the cart transport unit 27 by a torsion spring (not shown). When the pushing member 108 is biased and moves in the cart conveying direction, it abuts against the cart 14 and pushes in the cart conveying direction, and the pushing member 108 is pushed by the cart 14 loaded into the cart loading position D1. When the push member 108 is pushed, the push member 108 rotates against the bias and passes through the escape cart 14, and the push member 108 feeds the cart 14 and carries the cart 14 to the cart loading position D1. Is possible.
[0047]
At the cart carry-in position D1, the cart standby position D2 and the card supply position D3 on the base 101, a cylinder-driven stopper 109 for arbitrarily stopping the cart 14 is provided, and movement in the cart conveyance direction is allowed. In addition, a reverse movement restricting member 110 that restricts movement in the reverse direction with respect to the cart conveying direction is provided.
[0048]
At the cart supply position D3, there is a cart 14 that raises the cart 14 to reduce the drop of the stacked container group 13 from the plate 88 when the stacked container group 13 on the plate 88 of the mounting portion 26 is mounted on the cart 14. A cart raising / lowering means 111 for raising and lowering is disposed. The cart lifting / lowering means 111 has a cart lifting / lowering base 112 that is driven to move up / down, and the cart lifting / lowering base 112 is located at the same height as the base 101, thereby allowing the cart 14 to move by the wheels 17 and moving the cart up / down. By raising the platform 112, the lower surface of the cart 14 located at the cart supply position D3 is supported and raised.
[0049]
At the cart carry-out position D4, braking means 113 for braking the cart 14 to be delivered is disposed. The braking means 113 has guide rails 115 supported on both sides of the cart unloading position D4 so as to be swingable with a support shaft 114 as a fulcrum, and the guide rail 115 is urged by an urging means such as a cylinder or a spring operated by air. Brake shoes (not shown) are attached to the opposing surfaces of the guide rails 115 on both sides, which are biased in a direction in which the interval between the end portions in the cart conveying direction is narrowed. Then, the cart 14 delivered to the cart unloading position D4 is sandwiched between the guide rails 115 on both sides, and the cart 14 is braked by frictional contact with the brake shoes. The braking force of the cart 14 by the braking means 113 is set within a range in which the cart 14 can be stopped between the guide rails 115 and an operator can pull out the stopped cart 14.
[0050]
Next, the operation of the present embodiment will be described.
[0051]
The folding container 12 that is sequentially shipped from the upstream facility is carried in by the carry-in unit 22. Note that some folding containers 12 have restrictions on the loading order. In this case, the order of shipment of the folding containers 12 from the upstream equipment is controlled by the host control system, and the information on the shipping order is stored in the loading device 11. The loading device 11 controls the loading operation of the folding container 12 based on the notified information.
[0052]
As shown in FIG. 3, identification information such as a barcode displayed on the folding container 12 carried in by the carry-in unit 22 is read by the information reading unit 31, and if the read information is appropriate, it is transported downstream as it is. The stopper 35 is raised by detecting the folding container 12 by the carry-in detection sensor 34 in order from the carry-in position A, and the folding container 12 is stopped at each carry-in position A. In some cases, only one folding container 12 is stopped at any of the loading positions A.
[0053]
As shown in FIGS. 3 to 5, each holding means 41 is moved above each loading position A by the moving body 49, and the holding of the folding container 12 to each loading position A is completed. The lifting / lowering body 44 is lowered to the lower limit position by the lifting / lowering cylinder 43 of 41 and the arms 46 on both sides in the open state are entered into both sides of the folding container 12, and the arms 46 on both sides are closed and lifted by the lifting / lowering cylinder 43. Then, the claw portions 47 of the arms 46 on both sides are hooked on the lower side of the edge 15 of the folding container 12, and the folding container 12 is lifted from the carry-in portion 22.
[0054]
After the folding container 12 at each loading position A is lifted from the loading section 22 by each holding means 41, the moving body 49 moves to the loading section 24, and each folding container 12 held by each holding means 41 is loaded into each stack. It is moved to the attachment position B, that is, the fork 65 of each lifting means 61.
[0055]
The lifting / lowering body 44 is lowered to the lower limit position by the lifting / lowering cylinder 43 of each holding means 41, the arms 46 on both sides are opened, and the folding container 12 is loaded on the fork 65 of each lifting / lowering means 61 at each loading position B. After loading, the lifting / lowering body 44 is raised by the lifting / lowering cylinder 43, the moving body 49 is moved to the carry-in position A, and the next folding container 12 is moved to a transfer operation.
[0056]
By stacking the folding container 12 on the fork 65 of each lifting / lowering means 61, the first and second sensors 73 and 74 for each lifting / lowering means 61 are shielded from light and the folding container 12 is detected. After these detections, the folding container 12 is lowered together with the fork 65 while monitoring the detection state of the first sensor 73 for each lifting means 61. If the first sensor 73 switches to the translucent state, the lowering is performed. It stops, and the upper surface position of the folding container 12 is positioned at a predetermined loading reference height. At this time, it can be confirmed by the second sensor 74 that the folding container 12 is positioned at the loading reference height.
[0057]
Each folding container 12 carried continuously by the transfer unit 23 is loaded on the folding container 12 loaded on the fork 65 of each lifting means 61 whose upper surface position is set to a predetermined loading reference height. Add and stack.
[0058]
Each time the folding container 12 is stacked on the fork 65 of each lifting / lowering means 61, the fork 65 of each lifting / lowering means 61 is lowered as described above, and the upper surface position of the uppermost folding container 12 is set to a predetermined loading reference height. The next folding container 12 can be stacked. Then, the folding containers 12 are sequentially stacked on the forks 65 of the lifting means 61 and stacked.
[0059]
At this time, as shown in FIG. 9, for example, even when different types of folding containers 12 having different heights are stacked and stacked on the forks 65 of the lifting means 61, the upper surface position of the uppermost folding container 12 is placed. Are positioned at a predetermined loading reference height, so that different types of folding containers 12 having different heights can be stacked simultaneously by the transfer unit 23.
[0060]
As shown in FIGS. 3 to 5, when each folding container 12 is loaded onto the folded folding container 12 on the fork 65 of each lifting means 61 by the transfer unit 23, Each positioning cylinder 76 of the positioning means 63 arranged in four directions is operated, and the folding container 12 at each loading position B is sandwiched from the four directions by the lock plate 77, that is, each folding container 12 is locked on all sides and loaded. The folding position of the folding container 12 and the folding container 12 to be stacked are positioned so that they can be accurately fitted. At this time, the adjacent folding containers 12 can be prevented from being caught by the spacers 75.
[0061]
Then, when the set number of folding containers are stacked on the forks 65 of the lifting means 61, the forks 65 of the lifting means 61 are lowered to the lower limit position, and the stacks stacked on the forks 65 are stacked. The container group 13 is transferred onto the unloading means 25, and the stacked container group 13 is conveyed toward the downstream side alignment position C by the unloading means 25. When each stacked container group 13 is unloaded from the loading position B, the fork 65 of each lifting / lowering means 61 is raised and the next loading operation is started.
[0062]
As shown in FIG. 6, the leading stacked container group 13 conveyed by the unloading means 25 is stopped by a stopper 86, and the succeeding stacked container group 13 is stopped by this leading stacked container group 13, and each stacked The container group 13 is aligned with the alignment position C and stopped.
[0063]
As shown in FIGS. 6, 10, and 11, by the operation of the transfer cylinder 92 of the transfer means 83, the pusher 90 is advanced onto the carry-out means 25 and each stacked container group 13 on the carry-out means 25 is moved. Are simultaneously pushed onto the receiving plate 88 and transferred.
[0064]
As shown in FIGS. 6 and 12, the plate 88 on which each stacked container group 13 is loaded is advanced onto the cart 14 supplied to the cart supply position D3 by the operation of the plate cylinder 89 of the plate means 82.
[0065]
At this time, as shown in FIG. 6 and FIG. 7, when the fence 88 at both ends of the cart 14 is opened by the fence opening means 85, the plate 88 carrying the stacked container group 13 is moved into the cart 14. Even if the fences 19 standing at both ends of the cart 14 are inclined to the inside of the cart 14, the fences 19 are opened by the fence opening means 85 to open the fences 19 at both ends of the cart 14, respectively. Can be advanced on the cart 14 without interfering with. In this fence opening means 85, from the standby state in which the first cylinder 97 is extended and the second cylinder 98 is contracted, first, the second cylinder 98 is extended to attach the fence opening plate 96 to the fence 19 of the cart 14. Then, the first cylinder 97 is contracted and the fence 19 is opened outward by the fence opening plate 96. In addition, when the fence 19 of the cart 14 is inclined inward from the fence opening plate 96, the fence opening plate 96 is not engaged with the fence 19 by a detecting means such as a reed switch attached to the first cylinder 97. Is determined to be abnormal.
[0066]
As shown in FIGS. 6, 7, and 12, by the operation of the presser cylinder 95 of the presser means 84, the presser body 93 is moved to the advanced position for pressing the stacked container group 13 on the plate 88 advanced on the cart 14. While moving and holding each stacked container group 13 on the plate 88 that has advanced onto the cart 14 with this presser body 93, the plate 88 is withdrawn from the cart 14, and each stacked container group 13 on the plate 88 is moved to the cart. Mount on 14.
[0067]
When loading each stacked container group 13 on the plate 88 to the cart 14, the cart 14 at the cart supply position D3 is raised in advance by the cart lifting / lowering means 111, and the stacked container group from the plate 88 to the cart 14 is placed. Reduce the 13 head.
[0068]
The presser body 93 of the presser means 84 and the fence opening plate 96 of the fence opening means 85 are returned to the retracted positions to stand by, and the cart 14 is lowered by the cart lifting / lowering means 111 to be lowered onto the base part 101 of the cart transport unit 27.
[0069]
As shown in FIG. 8, in the cart transport unit 27, the pushing members 105 and 106 are moved in the cart transport direction by the operation of the first slide cylinder 104, and the pushing container 105 moves the stacked containers at the cart supply position D3. The cart 14 loaded with the group 13 is sent to the cart unloading position D4, and the cart 14 located at the cart standby position D2 is sent to the cart supply position D3 by the pushing member 106. Therefore, it is possible to efficiently send out the loaded cart 14 from the cart supply position D3 and supply the empty cart 14 to the cart supply position D3 at the same time.
[0070]
The cart 14 to be delivered to the cart unloading position D4 is sandwiched between the guide rails 115 on both sides, and the cart 14 is braked by frictional contact with the brake shoes of the guide rail 115. Prevents unnecessary movement due to the action of tilt. An operator pulls out the cart 14 stopped between the guide rails 115 and moves the cart 14 to carry it.
[0071]
When the cart carry-in position D1 is empty, the worker carries the cart 14 into the cart transport unit 27. When the cart standby position D2 is empty, or the cart 14 is in the cart standby position D2, the cart 14 in the cart standby position D2 is supplied to the cart 14 by the first slide cylinder 104. When the cart standby position D2 becomes empty after being transported to the position D3, the second slide cylinder 107 is operated to transport the cart 14 at the cart loading position D1 to the cart standby position D2. For this reason, it is not necessary to match the loading of the cart 14 with the operation of the first slide cylinder 104, and it is possible to prevent the cart 14 from coming off such that the cart 14 is not supplied to the cart supply position D3.
[0072]
If a no-lead folding container 12 that cannot be read by the information reading unit 31 of the carry-in unit 22 or has no loading information is generated, if no lead occurs in the first folding container 12 loaded on the lifting means 61, the subsequent The folding container 12 is stopped by the stopper 33 at the position of the information reading unit 31, and only the no-lead folding container 12 is transferred to the lifting / lowering means 61 by the transfer unit 23. The unloading means 25 unloads downstream from the alignment position C. Further, if a no-lead folding container 12 is generated while being stacked on the lifting / lowering means 61, the folding containers 12 stacked on the lifting / lowering means 61 are mounted on the cart 14, and then the no-lead folding container 12 is loaded as described above. Only 12 is carried out downstream of the unloading means 25.
[0073]
As described above, the loading device 11 detects the position of the upper surface of the uppermost folding container 12 that is stacked for each lifting / lowering means 61 that can be lifted / lowered independently by the plurality of detection means 62, and the lifting / lowering means 61. In order to allow the folding container 12 to be stacked by positioning the upper surface position of the uppermost folding container 12 at a certain loading reference height every time, the loading unit 22 and the transfer unit 23 are not used, and the loading unit is not used. A plurality of folding containers 12 carried in by 22 are held by holding means 41 of the transfer unit 23, and the plurality of folding containers 12 can be stacked on a plurality of lifting means 61, respectively. Although it is simple and small, it is possible to simultaneously load multiple types of different types of folding containers 12 having different heights.
[0074]
Further, the detection means 62 of the loading unit 24 detects the passage of the uppermost folding container 12 when the folding container 12 is lowered by the lifting / lowering means 61 by the first sensor 73 arranged corresponding to the loading reference height. Then, it is detected that the upper surface position of the uppermost folding container 12 has reached the loading reference height, and is positioned at the loading reference height by the second sensor 74 disposed below the first sensor 73. Since the uppermost folding container 12 is detected, it can be surely confirmed that the uppermost folding container 12 is positioned at the loading reference height.
[0075]
Further, in the mounting portion 26, the plurality of stacked container groups 13 carried out from the carry-out means 25 are respectively transferred onto the plates 88 of the plate means 82 by the transfer means 83, and the plates 88 are supplied to the cart supply position D3. The plurality of stacks on the plate 88 are moved by moving the carts 14 on the cart 88 and pushing the stacking containers 13 on the plates 88 moved on the cart 14 with the pressing means 84 and withdrawing the plates 88 from the cart 14. Since the container group 13 is mounted on the cart 14, a plurality of stacked container groups 13 can be mounted on the cart 14 even if there are protrusions on the cart 14.
[0076]
In order to raise the cart 14 at the cart supply position D3 when the cart 13 is loaded with the stacked containers 13 on the plate 88 by the cart lifting / lowering means 111, the cart 14 is carried in and out at a low position such as the floor surface. Corresponding to unloading means 25, plate means 82, etc., which can be easily reduced, the cart 14 height is increased from the plate 88 to the height at which the stacking container group 13 can be mounted. Can be matched.
[0077]
When the plate 88 loaded with the stacked container group 13 enters the cart 14, even if the fences 19 standing at both ends of the cart 14 are inclined to the inside of the cart 14, the fence opening means 85 can Since the fences 19 at both ends of the door are opened, the stacked container group 13 can be securely mounted on the cart 14 without interfering with the fence 19.
[0078]
Further, in the cart transport unit 27, the first slide cylinder 104 sends out the loaded cart 14 loaded with the stacked container group 13 from the cart supply position D3, and the empty cart loaded with the stacked container group 13 next. 14 can be efficiently supplied to the cart supply position D3 at the same time. Further, an empty cart 14 is loaded into the second slide cylinder 107, and the second slide cylinder 107 is connected to the first slide cylinder 104. An empty cart 14 can be supplied, and it is not necessary to match the loading of the cart 14 with the operation of the first slide cylinder 104, so that the cart 14 can be prevented from coming off such that the cart 14 is not supplied to the cart supply position D3.
[0079]
Since the loaded cart 14 delivered from the cart supply position D3 is braked by the braking means 113, it is possible to prevent the loaded and heavy cart 14 from moving unnecessarily due to inertia such as delivery.
[0080]
In addition, although the holding means 41 of the transfer part 23 and the raising / lowering means 61 of the loading part 24 were provided two each and the folding container 12 was processed two by two simultaneously, the holding means 41 of the transfer part 23 and loading Three or more lifting / lowering means 61 of the section 24 may be provided, and three or more folding containers 12 may be processed at the same time, so that the loading efficiency can be further improved.
[0081]
Further, the load is not limited to the folding container 12, but can also be applied to normal containers, cases and boxes that are not folded, bags that can be loaded, and the like.
[0082]
In addition, the cart 14 is not limited to the case where the base 16 is rectangular and the fences 19 are provided at both ends thereof, but also the case where the base 16 is square or the fence 19 is on both sides and the back side. Applicable.
[0083]
【The invention's effect】
According to the loading apparatus according to claim 1, the upper surface position of the uppermost stacked product stacked for each lifting means that can be moved up and down independently is detected by the plurality of detection means, and for each lifting means. In order to allow loading of the load by positioning the upper surface position of the load at the uppermost stage at a certain loading reference height, the load was loaded by the loading section without using a plurality of loading sections and transfer sections. A plurality of products can be held by the holding means of the transfer section, and the plurality of products can be stacked on a plurality of lifting means, respectively, while the loading capacity is high and the structure is simple and small, Multi-variety simultaneous loading can be carried out by loading different kinds of loads with different heights.
[0084]
According to the loading device according to claim 2, in addition to the effect of the loading device according to claim 1, in the detection means, the first sensor arranged corresponding to the loading reference height is used by the lifting means. When the load is lowered, the passage of the uppermost load is detected to detect that the upper surface position of the uppermost load has reached the reference height for loading, and is placed below the first sensor. Since the uppermost stacked object positioned at the loading reference height is detected by the second sensor, it is possible to reliably confirm that the uppermost stacked object is positioned at the loading reference height.
[0085]
According to the loading device according to claim 3, in addition to the effect of the loading device according to claim 1 or 2, a plurality of stacked products to be carried out from the carrying-out means are transferred by the transferring means. Each plate is transferred onto the plate, the plate is advanced onto the cart supplied to the cart supply position, and the stacked products on the plate advanced onto the cart are pressed by the pressing means, and the plate is moved out from the cart. Thus, since the plurality of stacked products on the plate are mounted on the cart, respectively, the plurality of stacked products can be mounted on the cart even if there are protrusions on the cart.
[0086]
According to the loading device of the fourth aspect, in addition to the effect of the loading device according to the third aspect, the cart supply position can be adjusted when the cart loading unit is loaded on the cart by the cart lifting means. In order to raise the cart, it is possible to easily carry in and out of the cart at a low position such as the floor surface, and then step out from the plate corresponding to the unloading part or plate device that has a limit to lowering the cart. The height of the cart can be adjusted to the height at which the stacks can be loaded.
[0087]
According to the loading device according to claim 5, in addition to the effect of the loading device according to claim 3 or 4, when the plate carrying the stacked product group is entered on the cart, both ends of the cart Even if the fence standing on the inside of the cart is tilted to the inside of the cart, the fences at the both ends of the cart are opened by the fence opening means, so it is possible to securely mount the stacked products on the cart without interfering with the fence. .
[0088]
According to the loading device of the sixth aspect, in addition to the effect of the loading device according to any one of the third to fifth aspects, the loaded cart on which the group of stacked products is loaded by the first cart moving means. It is possible to efficiently send out the cart from the cart supply position and then to the cart supply position of the empty cart loaded with the stacked product group at the same time, and carry the empty cart into the second cart moving means. Thus, an empty cart can be supplied from the second cart moving means to the first cart moving means, and there is no need to match the cart loading with the operation of the first cart moving means, and the cart is in the cart supply position. It can prevent the cart from being unsupplied.
[0089]
According to the loading device of the seventh aspect, in addition to the effect of the loading device according to any one of the third to sixth aspects, the loaded cart is braked on the loaded cart delivered from the cart supply position by the braking means. It is possible to prevent unnecessary and heavy carts from moving unnecessarily due to inertia such as sending out.
[Brief description of the drawings]
FIG. 1 is a front view of a loading device according to an embodiment of the present invention.
FIG. 2 is a plan view of the same loading device.
FIG. 3 is a front view of the transfer unit and the loading unit of the same loading device.
FIG. 4 is a plan view of a transfer portion and a loading portion of the same loading device.
FIG. 5 is a side view of the transfer section and the loading section of the same loading apparatus.
FIG. 6 is a plan view of carry-out means and a mounting portion of the same loading apparatus.
FIG. 7 is a front view of a mounting portion of the same loading device.
FIG. 8 is a plan view of a cart transport unit of the same loading apparatus.
FIG. 9 is an explanatory diagram showing the operation of the loading unit of the loading device.
FIG. 10 is an explanatory view showing the operation of the mounting portion of the loading device.
FIG. 11 is an explanatory view showing the operation following the FIG. 10 of the mounting portion of the loading device.
12 is an explanatory view showing an operation following the FIG. 11 of the mounting unit of the same loading device. FIG.
[Explanation of symbols]
        11 Loading device
        12 Folding container as load
        13 Stacked container group as cargo group
        14 cart
        19 fence
        22 Loading section
        23 Transfer Department
        24 Loading section
        25 Unloading means
        26 Mounting part
        41 Holding means
        42    transportation
        61 Lifting means
        62 Detection means
        73 First sensor
        74 Second sensor
        82 Plate means
        83 Transfer means
        84 Presser means
        85fenceOpening means
        88 plates
        104 First slide cylinder as first cart moving means
        107 Second slide cylinder as second cart moving means
        111 Cart lifting means
        113 Braking means

Claims (7)

One carry-in section for sequentially carrying different loads of different heights ;
There are a plurality of lifting means that can be moved up and down independently, and each load is stacked in a plurality of stages, and a plurality of detection means that detect the upper surface position of the uppermost load stacked in each lifting means. And a loading portion that allows the loading of the load by positioning the upper surface position of the uppermost load at a certain loading reference height for each lifting means;
A moving means for moving at the same time between the plurality of holding means for holding carried by the carrying unit a plurality of product the stowage respectively, and the stowage unit these holding means and the loading unit, the loading unit and one transfer unit respectively to enable stowage plurality of stowage material to the plurality of elevating means is moved simultaneously unit with the product held by the plurality of holding means at,
A loading device, comprising: a plurality of stacking articles that are stacked in a plurality of stages by a plurality of lifting means of the loading unit, respectively, and capable of carrying it out. The detection means is arranged corresponding to the loading reference height, detects the passage of the uppermost loading object when the loading object is lowered by the lifting means, and the upper surface position of the uppermost loading object is determined as the loading reference height. And a second sensor for detecting the uppermost stacked object located at the reference height for loading, which is disposed on the lower side of the first sensor. The loading device according to claim 1, wherein: A mounting portion that enables mounting a plurality of stacked products to be unloaded from the unloading means on a cart supplied to a cart supply position on the side of the unloading means,
This mounting part is
It has a plate which can receive a plurality of stacked products from the unloading means, and this plate advances on the cart supplied to the receiving position and the cart supply position for receiving the stacked products from the unloading means. Plate means for moving between cart positions to be
A transfer means for transferring a plurality of stacked products on the carry-out means onto a plate at a receiving position;
A holding means for holding the stacked product group on the plate that has advanced on the cart and mounting the stacked product group on the cart by the withdrawal of the plate from the cart. The loading device according to claim 1 or 2. 4. The mounting portion includes a cart lifting / lowering means that allows the cart at a cart supply position to move up and down, and that lifts the cart when loading a group of stacked products on the plate onto the cart. Loading device. The cart has fences erected at both ends intersecting the advancing and retreating direction in which the plate advances and retracts,
The loading device according to claim 3 or 4, wherein the mounting portion has a fence opening means for opening the fences at both ends when the plate enters the cart. A first cart that simultaneously feeds an already loaded cart loaded with a stacked product group from the cart supply position and then supplies an empty cart loaded with a stacked product group to the cart supply position. Transportation means;
6. The loading apparatus according to claim 3, further comprising second cart moving means for supplying an empty cart to the first cart moving means. The loading device according to any one of claims 3 to 6, further comprising braking means for braking the loaded cart that is fed from the cart supply position.

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