JPS6216422Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention is a baggage transfer device, more specifically,
This invention relates to a cargo transfer device for transferring and stacking cargo onto a lifting pallet using a cargo holding device.

As a baggage holding device for this type of baggage transfer device,
Some devices are known that have clamp bars that can be opened and closed to hold cargo from both sides. However, with such a transfer device, when stacking multiple items side by side, depending on the placement of the items, gaps may be created between the items due to the clamp bar, making it impossible to stack the items without any gaps. It's impossible.

The purpose of this invention is to provide a cargo transfer device that can stack a plurality of cargos side by side without gaps, regardless of their arrangement.

The baggage transfer device according to this invention is for transferring and stacking the baggage positioned at the baggage transfer section onto a lifting pallet using a baggage holding device. A baggage holding device is provided with a plurality of substantially U-shaped guides surrounding one side of the baggage holding device, and a baggage holding device is connected to a plurality of baggage holding material delivery devices that repeatedly feed out the same string-like baggage holding material along these guides, and The baggage holding material fixing device is provided with a plurality of baggage holding material fixing devices which are openable and closable and which fix parts of the baggage holding material near the tip.

String-like load holding materials include any material that is long and has adequate strength and flexibility to hold a load, such as string, tape, band, wire, chain, etc.

Embodiments of this invention will be described below with reference to the drawings.

The drawing shows luggage (cardboard boxes) on pallet P.
This shows a device that transfers one to several pieces of cargo C one by one and stacks a plurality of cargoes C in multiple layers, with each layer containing a plurality of pieces of cargo C. As shown in FIGS. 1 to 3, this stacking device includes two pallet conveying devices 1, one baggage supply conveyor 2, two baggage loading conveyors (baggage conveying devices) 3, It includes one load transfer device 4 and a control device (not shown) for these devices, and is installed on a horizontal floor 5 of a factory or the like.

The cargo transfer device 4 includes a traveling body 6, a hollow prismatic body 7 erected perpendicularly to the traveling body 6, an elevating body 8, a moving body 9, and a luggage holding device 10, and is configured as follows.

That is, one horizontal rack 11 and two horizontal rails 12 arranged in parallel at symmetrical positions on both sides are fixed to the floor 5 via groove sections 13, etc., and the running body 6 Four shoes 14 fixed to the bottom surface of the rail 12 are slidably fitted into each of these rails 12, two each. The traveling body 6 is provided with a traveling motor 15 and a reduction gear 16 connected thereto, and a pinion 17 fixed to the output shaft of the reduction gear 16 is engaged with the rack 11. By appropriately rotating the motor 15 in both directions, the traveling body 6 reciprocates along the rail 12 in a horizontal direction parallel to it. Below, this direction is Y
Pallet conveying device 1
The side, that is, the left side in FIGS. 1 and 2, is the front, and the baggage carry-in conveyor 3 side, that is, the right side in the figures, is the rear.

Rotating shafts 18 and 19 extending in the horizontal direction perpendicular to the Y-axis (hereinafter referred to as the X-axis direction or left-right direction) are rotatably attached to the upper and lower ends of the columnar body 7, and the inside of the columnar body 7 is rotated. A sprocket 2 is installed in the center of each rotating shaft 18, 19 located at
0 and 21 are fixed respectively. The front portion of each of these sprockets 20, 21 projects slightly forward from an opening 23 formed in the front plate 22 of the columnar body 7. The traveling body 6 also includes a lifting motor 2.
4 and a reducer 25 connected thereto, the output shaft of this reducer 25 and the lower rotating shaft 1 are provided.
A portion of the columnar body 9 protruding outward from the side plate 26 is connected by a chain 27. A prismatic vertical rail 28 extending in the vertical direction (hereinafter referred to as the Z-axis direction) is fixed to the outer surface of the front plate 22 and the front outer surface of the left and right side plates 26 of the columnar body 7. The elevating body 8 is disposed immediately in front of the columnar body front plate 22, and as shown in detail in FIGS. 4 to 6, these rails 2 are
It is attached to 8 so that it can be raised and lowered. A chain 30 is attached to the upper and lower sprockets 20 and 21 inside the columnar body 7.
The elevating body 8 and a balance weight 31 housed inside the columnar body 7 so as to be movable up and down are respectively connected to symmetrical positions of the chain 30. By appropriately rotating the elevating motor 24 in both directions, the elevating body 8 reciprocates in the vertical direction along the rail 28.

The moving body 9 has a rectangular tube shape that is elongated in the left-right direction. As shown in detail in Figures 4-6,
Horizontal rails 32 extending in the left-right direction are fixed to the rear of both the upper and lower surfaces of the movable body 9, and these rails 32 are slidably fitted into shoes 33 fixed to the top and bottom of the front part of the elevating body 8, two each. It is being A rack 34 extending in the left-right direction is fixed to the rear surface of the movable body 9. Further, the elevating body 8 is provided with a motor 35 with a reduction gear, and a pinion 36 fixed to the shaft thereof is engaged with the rack 34. and,
By appropriately rotating the motor 35 in both directions, the movable body 9 moves in the left-right direction with respect to the elevating body 8.

Horizontal rails 37, 38 extending in the left-right direction are fixed to the front portions of both the upper and lower surfaces of the movable body 9, and a rack 39 parallel to these is fixed to the lower portion of the front surface (see FIGS. 7 and 8). Luggage holding device 10
As shown in detail in FIGS. 7 to 11, there is an upper frame 40 that moves along the upper and lower rails 37 and 38 of the moving body 9, a lower frame 41 that is horizontally attached to the lower part of the upper frame 40, and It also includes a plurality of tape feeding devices 42 and tape fixing devices 55 provided within the lower frame 41. The upper frame 40 is arranged immediately in front of the moving body 9, and two left and right chute 43, which are slidably fitted to the upper rail 37 of the moving body 9, are fixed to the upper part of the upper frame 40. Two rollers 44 that sandwich the lower rail 38 of the movable body 9 from both front and rear sides are attached to two positions on the left and right sides of the lower part of the frame 40. The upper frame 40 is provided with a motor 45 with a reduction gear, and a pinion 46 fixed to the shaft thereof is engaged with a rack 39 of the movable body 9. Then, by appropriately rotating the motor 45 in both directions, the entire cargo holding device 10 is moved to the moving body 9.
It moves in the left-right direction along the rails 37, 38 of.

A vertical shaft 48 is rotatably supported by a housing 47 vertically fixed to the lower part of the upper frame 40, and the center portion of the lower frame 41 is fixed to the lower end of this shaft 48. A semicircular gear 49 is fixed to the upper end of the vertical shaft 48.
Both end faces 50 in the circumferential direction of 9 are within one vertical plane passing through the center of the vertical axis 48. A stopper 52 is fixed to the upper frame 40 and has two perpendicular contact surfaces 51 that are in contact with both end surfaces 50 of the gear 49. These contact surfaces 51 pass through the center of the vertical axis 48 and are orthogonal to each other. are located in two vertical planes, respectively. Therefore, the vertical axis 48 is 90 degrees from the position where the gear 49 is in contact with one of the contact surfaces 51.
By rotating by .degree., the gear 49 comes into contact with the other contact surface 51. The upper frame 40 is provided with a motor 53 with a reduction gear for rotating the lower frame, and a gear 54 fixed to the shaft thereof meshes with a semicircular gear 49. And lower frame 4
1 or the vertical axis 48 is usually a semicircular gear 4
9 is stopped at a position in contact with one of the contact surfaces 51 of the stoppers 52, and by rotating the motor 53 until the gear 49 contacts the other contact surface 51, the lower frame 41 is rotated about the vertical axis 48. Then rotate it 90 degrees.

Each tape feeding device 42 includes a pair of feeding rollers 56 and 57 that are in pressure contact with each other, a motor 58 that drives one feeding roller 56, a direction in which a tape (baggage holding material) 69 is wound, and the tape 69 is wound by a spring or the like. It consists of a tape take-up roller 70 that is biased by the user, and a tape guide 71 that is fixed to the lower frame 41. The tape 69 may be of any material as long as it has appropriate strength and flexibility to hold the cargo C, and for example, a packing tape (band) or the like may be used. The guide 71 is made of a grooved member arranged so that its opening faces downward, and its tip is bent downward. The leading end of the tape 69 coming out from the take-up roller 70 is usually 1
It is sandwiched between a pair of delivery rollers 56 and 57 and faces a guide 71.

Each tape fixing device 55 includes a pair of rollers 72 and 73 that can be opened and closed and can be moved away from or pressed against each other.
and a tape guide 74 fixed to the lower frame 41, which are disposed on opposite sides of each tape feeding device 42, respectively. The guide 74 is symmetrical to the guide 71 of the corresponding tape feeder 42 .

As shown in FIGS. 1 and 2, the baggage supply conveyor 2 is disposed behind the traveling body rail 12 and extends horizontally in the left-right direction.

As shown in FIGS. 1 to 3, the two baggage carry-in conveyors 3 are arranged symmetrically on both left and right sides of the rear part of the traveling object rail 12, and extend horizontally in the front-rear direction. The rear end of each baggage carry-in conveyor 3 is connected to the baggage supply conveyor 2, and the front end thereof is a baggage transfer section 59. A fixed stopper 60 for positioning cargo in the front-rear direction extending in the left-right direction is provided at the front end of the cargo delivery section 59 of the cargo carrying-in conveyor 3, and a fixed stopper 60 for positioning cargo in the front-rear direction that extends in the left-right direction is installed at a slightly rearward portion of the cargo delivery section 59 by an air cylinder (not shown). A cargo waiting movable stopper 61 that moves up and down is provided. In addition, the conveyor 3 after the baggage delivery section 59
A pair of left and right fixed guides 63 extending in the front-rear direction are provided on both left and right sides of. As shown in detail in FIGS. 10 and 11, the baggage transfer section 59 is provided with a plurality of approximately U-shaped tape guides 75. The frame of the conveyor 3 includes a horizontal plate 7 that is biased upward by a spring 76.
7 is attached to be able to move up and down, and the lower surface of a guide 75 is fixed to the upper surface of this horizontal plate 77. Each guide 75 is made of a groove member bent into a substantially U-shape so that the opening faces inward, and projects upward from between the rollers 79 of the conveyor 3. Each guide 7
One end of a thin guide plate 78 having a width slightly smaller than the width of the opening is fixed at right angles to one side edge of the opening at a suitable location in FIG. 5 (see FIG. 12). The positions of these guides 75 are determined by the position of the luggage holding device 1.
This corresponds to the position of tape guides 71 and 74 of No. 0. Further, the baggage transfer section 59 is provided with a pair of left and right movable guides 62 for positioning the baggage in the left and right direction, extending in the front-rear direction. Each movable guide 62 is
In order to avoid interference with the tape guide 75, it is divided into a plurality of parts at the front and rear. The left and right movable guides 62 are interlocked with each other by an air cylinder and a link mechanism (not shown), and are moved toward and away from each other centering on the lateral center of the baggage transfer section 59 to close and open. .

As shown in FIGS. 1 to 3, the pallet conveying device 1 is arranged symmetrically at the front end of the traveling body rail 12 and on both left and right sides in front of it, and extends horizontally in the front-rear direction. Each pallet conveying device 1
consists of an empty pallet carry-in conveyor 64 placed on the floor 5, a loaded pallet carry-out conveyor 65 placed directly above this, and a stowage work conveyor 66 placed immediately after these conveyors.
The stacking work conveyor 66 is raised and lowered by an elevating device 67, and is connected to the rear end of the empty pallet carrying-in conveyor 64 when descending, and to the rear end of the loaded pallet carrying-out conveyor 65 when rising.

The empty pallet P is transferred from the carry-in conveyor 64 to the stowage work conveyor 66 in the lowered position, and is stopped at a certain work position 68 above it. Then, with the work conveyor 66 stopped at the lowered position, a required number of cargoes C are stacked on the pallet P. When the loading is finished, the work conveyor 66
The pallet P on which the cargo C is loaded is lifted up, and the loaded pallet P is transferred to the carry-out conveyor 65 and carried out. When the loaded pallet P is transferred to the discharge conveyor 65, the working conveyor 66 returns to the lowered position again. Note that when one empty pallet P is transferred from the carry-in conveyor 64 to the work conveyor 66, the next empty pallet P sent to the carry-in conveyor 64 is
It is stopped at the rear end of the carry-in conveyor 64 and is kept on standby until the empty working conveyor 66, which has lifted the loaded pallet P and transferred it to the carry-out conveyor 65 as described above, returns to the lowered position.

During work, two types of packages C are irregularly supplied to the package supply conveyor 2 from one end, and these packages C are automatically sorted on the supply conveyor 2, and one package C is One piece of cargo C is supplied from each rear end only to the corresponding one of the carrying-in conveyors 3, and only to the other corresponding carrying-in conveyor 3. The luggage C supplied to each carry-in conveyor 3 is sent forward, positioned at the luggage delivery section 59 as described below, and then transported out by the luggage transfer device 4. That is, in the carry-in conveyor 3, when there is no cargo C in the transfer section 59, the left and right movable guides 62 are open and the movable stopper 61 is lowered, and when the cargo C passes over the movable stopper 61 and enters the transfer section 59. , the movable stopper 61 rises, and the next cargo C is stopped and placed on standby. The cargo C that has entered the delivery section 59 stops when it hits the fixed stopper 60, and then the movable guide 62 closes, so that it is held between the movable guides 62 and positioned at a fixed position in the delivery section 59. At this time, the lower part and both sides of the cargo C are surrounded by tape guides 75. After the movable guide 62 opens again and the cargo C positioned in this manner is separated from the cargo C, the cargo C is moved to the transfer device 4 as described later.
It is carried out by. Then, when the cargo C is carried out from the delivery section 59, the movable stopper 61 is lowered again, and the next cargo C is positioned in the delivery section 59.

The cargo holding device 10 of the transfer device 4 includes a traveling body 6,
By appropriately moving the elevating body 8 and the movable body 9 and by moving itself along the movable body 9, it is possible to move to any point within the required range of the X, Y, and Z axes. As shown in the figure, the cargo C positioned on the delivery section 59 of the cargo carry-in conveyor 3 is lifted and stacked on the pallet P positioned on the work conveyor 66. That is, first, with the cargo holding device 10 positioned directly above the cargo C positioned at one of the transfer sections 59, the elevating body 8 is lowered, and the horizontal presser with a spring provided on the lower surface of the lower frame 41 is moved. A plate (not shown) is brought into contact with the top surface of this cargo C. This presser plate is attached to the lower surface of the lower frame 41 via a spring, and is pressed against the upper surface of the cargo C by this spring. When the elevating body 8 descends, before contacting the holding plate cargo C, the lower end of each tape guide 71, 74 of the lower frame 41 hits the upper end of each tape guide 75 of the conveyor 3, and is connected to the upper end of each tape guide 75 of the conveyor 3. The tape guide 75 is pushed down by the tape guides 71 and 74 of the lower frame 41. If the lower frame 41 comes into contact with the cargo C and stops,
With the pair of rollers 72 and 73 of the tape fixing device 55 separated, the feed rollers 56 and 57 are rotated in the feed direction to feed the tape 69. The tape 69 sent out in this way is guided by the guide 7
1, 75, 74, passing around the package C, the tip of which is connected to a pair of rollers 7 of the tape fixing device 55.
It falls between 2.73. At this time, tape 69
moves inside the groove of the guide 71, inside the groove of the guide 75, and inside the groove of the guide 74 in this order along the bottoms of these grooves. In this way, the tape 69 moves inside the grooves of the guides 71, 75, 74, so there is little risk of it coming off the guides 71, 75, 74, but a thin guide plate 78 is provided at the opening of the groove of the guide 75. Therefore, the tape 69 is reliably prevented from coming off the guide 75. The tip of the tape 69 is connected to the rollers 72 and 73
Once the tape 69 has passed through the gap, the rollers 72 and 73 are brought into pressure contact to clamp the tape 69, and then the delivery rollers 56 and 57 are rotated in the winding direction opposite to that described above. As a result, the tape 69 bends the thin plate 78, moves away from the guide 75, and is wrapped around the cargo C.
At this time, since one side edge of the thin plate 78 is only fixed to one side edge of the opening of the groove of the guide 75, the tape 69 is pulled by rotating the feed rollers 56 and 57 in the winding direction. , thin plate 78
is easily bent, and the tape 69 is easily separated from the guide 75 and wrapped around the load C. And luggage C
is pressed against the lower surface of the lower frame 41 by a tape 69 and held in a fixed position. Once the baggage C is held in this way, by raising the elevating body 8, the baggage C can be moved to the tape guide 7.
5 to lift it upward. The luggage holding device 10 is
By moving the moving body 9 and itself appropriately in the left-right direction with the traveling body 6 positioned near the rear end of the rail 12, it is possible to move to any point above the left and right handing sections 59. . Further, in this stowage device, the cargo holding device 10 is connected to the moving body 9.
By moving the movable body 9 to the left end and the right end while being fixed at the center in the left-right direction, the baggage holding device 10 is positioned directly above the left-hand delivery section 59 and the right-hand delivery section 59, respectively. ing. Once the load C has been lifted from the delivery section 59 as described above, the traveling body 6 is moved forward while moving the elevating body 8, moving body 9, and load holding device 10 as appropriate, and is placed on the corresponding work conveyor 66. It is moved above the stopped pallet P or the cargo C already stacked on it. Then, the elevating body 8 is lowered to lower the load C, and after releasing the pair of rollers 72 and 73 of the tape fixing device 55, the feed rollers 56 and 57 are rotated in the winding direction to wrap the load around the load C. tape 6
9 is collected onto the take-up roller 70. Then, the elevating body 8 is raised and the baggage holding device 10 is separated upward from the baggage C. The baggage holding device 10 appropriately moves the traveling body 6, the elevating body 8, the moving body 9, and itself near the front end of the rail 12.
The cargo C can be moved above the pallet P stopped on the work conveyor 66 or any stacking position above the cargo C already stacked thereon. Furthermore, when loads C are stacked next to loads C that have already been stacked on the pallet P, the tape 69 wrapped around one of the loads C is sandwiched between these loads C. However, since the tape 69 is thin, it can be collected smoothly, and there are almost no gaps between the items. The baggage holding device 10, which has stacked the baggage C at a predetermined stowage position and released it as described above, moves to above one of the baggage transfer sections 59 and repeats the above operation. Note that by rotating the lower frame 41 of the luggage holding device 10 after lifting the luggage C, the luggage C can be moved from the position in the delivery section 59 to the 90° position as needed.
They can also be stacked on pallets P by rotating them.

The control device includes information on the position and height of the cargo C positioned in the delivery section 59 for each type of cargo C;
In addition, the arrangement, height, loading procedure, etc. of the cargo C to be stacked on the pallet P are programmed in advance using the coordinate values of the X, Y, and Z axes, and the cargo is As described above, the holding device 10 stacks the cargo C positioned on the delivery section 59 onto the pallet P positioned on the work conveyor 66. Delivery section 5
The cargo C is carried out from the left and right transfer sections 59 in the order in which the cargo C is positioned first. Therefore, when two types of packages C are supplied to the carry-in conveyor 3 at approximately equal time intervals, the packages C are carried out alternately from the left and right delivery sections 59, and for some reason one of the packages C is not supplied. When the load is interrupted, only the other load C is continuously carried out. In this way, even if the supply of one cargo C is cut off, the stowage work will not be interrupted and the overall work efficiency will not be reduced thereby. In addition, the loading of the cargo C onto the pallet P is performed according to a preprogrammed procedure for each type of cargo C, and the control device controls the loading of the cargo C at that time for each pallet P. Stores the stowage status of C. Then, the loaded pallet P that has been loaded
As described above, the empty pallet P is carried out through the carry-out conveyor 65, and the next empty pallet P is transferred from the carry-in conveyor 64 to the work conveyor 66 and positioned therein.

Of course, this idea can also be applied to packages other than cardboard boxes.

According to the baggage transfer device of this invention, as described above, the baggage can be transferred by wrapping the string-like baggage holding material around it, and therefore, multiple bags can be transferred regardless of their arrangement. They can be stacked side by side without any gaps.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention, in which Fig. 1 is a plan view of the entire stowage device, Fig. 2 is a side view of the same, Fig. 3 is a front view of the same, and Fig. 4 is a portion of the elevating body of the cargo transfer device. A side view of the notch, Figure 5 is a front view of the same part,
Fig. 6 is a sectional view taken along the line shown in Fig. 5, Fig. 7 is a side view of the baggage holding device, Fig. 8 is a front view thereof, Fig. 9 is an enlarged sectional view taken along the line shown in Fig. 8, and Fig. 10 is Partially cutaway side view of the baggage loading conveyor and baggage holding device,
Figure 11 is the same front view, Figure 12 is Figure 11 XII-XII
FIG. 3 is an enlarged cross-sectional view of the line. 4...Luggage transfer device, 10...Luggage holding device,
42... Tape feeding device, 55... Tape fixing device, 59... Baggage delivery section, 69... Tape (baggage holding material), 75... Tape guide.

Claims (1)

[Scope of utility model registration request] This is a baggage transfer device for transferring and stacking the baggage C positioned at the baggage delivery section 59 onto a lifting pallet P by the baggage holding device 10, and the baggage C positioned at the baggage delivery section 59 is placed below and on both sides of the baggage C. A plurality of substantially U-shaped guides 75 are provided that surround one side of the baggage holding device 4, and the baggage holding device 10 repeatedly sends out the same string-shaped baggage holding material 69 along these guides 75.
2, and the baggage holding material 69 sent out by these
A baggage transfer device comprising a baggage holding material fixing device 55 which can be opened and closed and which fixes a part near the tip of the baggage holding material fixing device 55.