JPS6335488B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to an object to be packed that is moved by a conveyance device,
For example, a band guide arch that is attached to the main body and that arranges a band around the objects to be packed has a main body that is movable up and down above the objects to be packed on a pallet and has various mechanisms necessary for packaging. In a packing machine which wraps a band by hanging a band in the vertical direction around the object to be packed, the band guide arch has both ends of an upper arch located above the object to be packed, and left and right vertical arches located on both sides of the object to be packed. This invention relates to an inverted packaging machine equipped with a coupling mechanism.

BACKGROUND OF THE INVENTION Conventionally, as packing machines for wrapping objects by strapping them vertically around the periphery of the object, there are so-called horizontal packing machines shown in FIGS. 1A to 1C, and an inverted packing machine shown in FIG. 1D. The horizontal packaging machine described in Japanese Patent Application Laid-Open No. 50-150597, as shown in FIG. A series of band guide arches consisting of arches 2 are attached to the main body 10, and the main body 10 approaches the object W to be packed to pack it, and retreats to carry in and take out the object W to be packed,
The device described in Japanese Patent Application Laid-Open No. 127898/1989, shown in Figure B, is a conveying device for wrapping the fork insertion port and the object to be packed with a band, in order to enable movement using a forklift after packing. A slide arch 1 is provided as a lower arch that can move forward and backward into the fork insertion opening of a pallet moving on a pallet 12, and the objects to be packed on a pallet 13 are packed together with the pallet. It is configured to retreat when approaching. Therefore, as shown in Fig. 6, in order to pack the items on the pallet together with the pallet in a square shape, the packing machines shown in Fig. 6 A and B are installed side by side in the conveying device, and both packing machines In the past, a method of rotating the packaged items by 90 degrees was used, but this method was described in Japanese Patent Application Laid-Open No. 54-51696, as it had the drawbacks of high equipment costs and a large installation space. , as the main part is shown in FIG.
It has been proposed to connect the two via a rotating auxiliary arch 5. That is, the rear end of the slide arch 1 is provided so as to be connectable to the connecting portion 3 near the lower end of the rear arch 2, and the other end of the fixed arch 4 is located below the slide arch 1 and has one end connected to the rear arch 2. The auxiliary arch 5, which is pivotally attached to the other end thereof, is rotated and connected to the front arch 6. In the conventional invention, when the object to be packed is placed offset from the center line on the conveyor 12 or the base 12' in the direction opposite to the packing machine main body, or when the object to be packed is low in height, In this case, the packing process of tightening and welding the band cannot be performed because the main body cannot approach the object to be packed or the band welding mechanism within the main body is located on the object to be packed. Therefore, as disclosed in Japanese Utility Model Application No. 50-130589 and whose main parts are shown in FIG. A method has been proposed in which the band guide arch consisting of the lower arch 6 and the lower arch 4 is fixed, and the main body 10 and the band guide arch are moved up and down as a unit during band tightening and welding.

[Problems to be solved by the invention]

According to this means, the problems shown in FIGS. However, since the band guide arch is fixedly attached to the main body, there is a limit to how far the main body can descend.
When the lower arch 7 reaches the position indicated by the two-dot chain line], when the total height of the packaged item is low, it is necessary to take measures such as raising it on a conveyor, and since the left and right vertical arches 2 and 6 move, the same method is required. It is also not possible to adopt a means of arranging a sliding arch as shown in Figure C in parallel with a fixed arch. The present invention was developed in order to solve the above-mentioned problems.Both ends of the upper arch are connected to the left and right vertical arches so that a band can be supplied, and the upper arch is movable up and down together with the main body. An object of the present invention is to provide an inverted packing machine that can pack an object even when the center of an object to be packed is placed offset from the center of a conveyance device.

[Means to solve the problem]

The structure of the present invention for achieving the above object will be explained based on the illustrated embodiment. An upper arch 30 having curved ends, left and right vertical arches 14, 15 connected to the curved ends of the upper arch, A lower arch connected to the lower ends of the left and right vertical arches is provided with a band guide arch for arranging a band around the object to be packed, and the band is supplied into the band guide arch, pulled back, tightened against the object to be packed, and then Glue the band
The main body 10 is equipped with a cutting mechanism, and the main body 10 can be moved up and down to approach and separate from the object to be packed as much as possible. The tips of the curved portions at both ends of the upper arch are formed in a comb-teeth shape, and a plurality of flaps that can be opened and closed are provided in each arch other than the curved portions at both ends of the upper arch, and the tips of the curved portions are connected to the left and right vertical arches. The plurality of flaps of the left and right vertical arches 14 and 15 are engaged with the upper and lower ends of each of the plurality of flaps 14 and 15, respectively, so that the plurality of flaps of the left and right vertical arches 14 and 15 can be sequentially opened and closed at the curved portions at both ends of the upper arch by raising and lowering the main body 10. It is characterized by

[Effect]

Therefore, when the main body 10, which can be raised and lowered, is lowered in order to get as close as possible to the object to be packed, the upper arch 30
The comb-like tips of the curved parts at both ends of the left and right vertical arches 1
4, 15, the slide arch 17 and/or fixed arch 18 on the lower side move downward while pushing open the openable/closable flaps in 4 and 15 and approach the item to be packed.
The band is supplied to the band guide arch composed of the left and right vertical arches 14 and 15 connected to the upper arch 30, and when the band tightening, gluing, and cutting are completed, the main body rises and the upper arch 30 curves at both ends. The comb-like tips of the sections rise while pushing open and closing flaps in the left and right vertical arches 14 and 15.
The openable and closable flaps in the left and right vertical arches 14 and 15, through which the curved portions at both ends of the upper arch 30 have passed, sequentially return to their original positions.

【Example】

The details of the present invention will be explained below based on the illustrated embodiments. FIG. 2 is a perspective view showing the entire packing machine of the present invention.
Reference numeral 10 denotes a control unit that incorporates known mechanisms for supplying, tightening, adhering, and cutting bands. It is provided so as to be able to approach and separate from the head of the object W to be packed. That is, the helical rod 11 is rotated forward and backward by an appropriate drive mechanism within the support 10', and the support 1 to which it is screwed is rotated.
The control section 10 is provided so as to be movable up and down via a fixing nut section within 0'. 1
Reference numerals 4 and 15 denote left and right vertical arches constituting guide arches, which are slidably connected to both ends of the upper arch provided on the lower surface of the control, which will be described later. The lower slide arch guides 16, 16 are fixed at a position where the lower slide arches 17, 17 can be inserted into the fork insertion opening of the pallet, and the slide arches 17, 17 are connected to the slide arch motor 2.
8 and 28, one end of each of the slide arches and the other end of the slide arches are moved forward and backward in connection with and detachment from the lower ends of the left and right vertical arches 14 and 15, respectively, within the fork insertion opening of the pallet. slide arch 1
A fixed arch 18, which forms part of the lower arch, is provided below 7 and 17. That is, the straight portion of the fixed arch 18 is located at least below the conveyor line 12, attached to the support frame 19, and can be freely connected to and detached from the lower ends of the left and right vertical arches 14, 15 by means of a rotating arch, which will be described later. It is set in. In addition, 20 is a band pool equipped with a reel, 2
1 uses a turntable to place the object to be packed together with the pallet, lift it up, rotate it through 90 degrees, lower it, and convey it again to the arch below the control by a conveyance device. FIG. 3 is a side partial sectional view of the slide arches 17, 17 inserted into the fork insertion opening of the pallet 13. The slide arches 17, 17 have their bottoms fixed to a U-shaped guide frame (not shown). The guide frame is a connector having a gear provided at its tip, and has a position detection mechanism, such as a slide arch motor 28 operated by a phototube, for detecting the position of the fork insertion port of the pallet 13 conveyed through the chain 23. , 28, the tips of the slide arches 17, 17 are connected within the fork insertion opening, and the other ends are connected to the lower end curved portions of the left and right vertical arches 14, 15 to form one band guide arch. Fixed arch 18 and left and right vertical arches 14, 15
As shown in FIGS. 4 and 5, the rotating arch 24 connecting the fixed arch 18 has one end pivotally attached to the tip of the support frame 19 of the fixed arch 18, and is wound around a drum 25 integral with the shaft. A wire 26 is connected to the other end of a spring 27 whose one end is fixed to a support frame 19 of the fixed arch, and is provided so that the rotating arch 24 is always urged outward from the left and right vertical arches 14, 15.
Therefore, at the same time that the slide arches 17, 17 retreat into the slide arch guides 16, 16, the fixed arch 18 is stopped by the stopper 29 via the rotating arch 24, and the left and right vertical arches 14,
15 and the upper arch 30 connected thereto constitute one band guide arch. When the slide arches 17, 17 enter, the rotating arches 24, 2
4 is pressed by the tip of the slide arch and is located on the bottom surface of the slide arch, as shown in FIG. In the band guide arch described above, a known flap 22 that can be opened and closed is provided inside each arch except for the curved portions at both ends of the upper arch 30, and the tips of the curved portions at both ends of the upper arch 30 provided on the lower surface of the control section 10 are , as shown in FIG.
are formed to open independently every about 10 cm, so the central part of the comb teeth provided at the tips of the curved parts at both ends of the upper arch 30 opens independently every about 10 cm on both the left and right longitudinal arches 14, 15. The upper arch 30 can move up and down between the left and right vertical arches 14 and 15 by sequentially pushing open and closing each flap. Rotating arch 24
As mentioned above, since the left and right vertical arches 14 and 15 are biased outward, even if a flap is provided, when the band is tightened, the rotating arch 24 tilts in the direction of the conveyor line and the band cannot be taken out smoothly. Although this does not occur, when the band is supplied, the centrifugal force presses the band against the bottom surface of the rotating arch 24 and the band travels, smoothly transferring to the flaps of other arches and being supplied to each arch. There is no need to provide a flap. The packing machine according to the present invention is constructed as described above, and the pallet 13 loaded with the objects to be packed W is transported below the control by the transport device. One fork insertion port of pallet 13 is left and right vertical arch 14,
15, the transport device stops due to the operation of the phototube, the control unit 10 starts to descend via the spiral rod 11, and a position detection mechanism such as a limit switch provided on the lower surface of the control detects the head of the object W to be packed. It will stop when it comes into contact with. Meanwhile, the slide arches 17, 17 on the lower side are inserted into the fork insertion opening of the pallet, the tips of both slide arches are connected, and the other ends are connected with the lower end curved portions of the left and right arches. The movement of the slide arches into and out of the fork insertion opening is controlled by the guide rollers 31 by the slide arch motors 28, 28, and when the rear end of each slide arch pushes the limit switch in the slide arch guide, the slide arch motor The operation of 28 and 28 is stopped. When the connection of each arch is completed, the band supply starts and is wound into the arch.Then, the band is pulled back and released from the band guide flap of each arch, and each process of tightening, cutting, and gluing is performed, and the first part of the packaging is completed. The cycle ends. Next, the slide arch 17,1
7 is retracted by the slide arch motors 28, 28 from the fork insertion opening of the pallet until the limit switch at the end of the slide arch guide is pushed in. When this retraction is completed, the control unit 10 is slightly raised, the conveying device is activated, and when the other fork insertion ports of the pallet reach the left and right vertical arches 14, 15, the conveying device is stopped. Packing is performed in the same manner. After the packaging is completed through the fork insertion port, the conveyor further transports the turntable 21 onto the turntable 21, where the position is detected by the phototube, and the turntable 21 is raised by the drive mechanism as appropriate and rotated 90 degrees. Rotate and descend. When the turntable descends and the pallet on which the items to be packed are placed returns to the conveying device, the conveying device is reversed and conveyed again between the left and right arches, and the pallet has already been moved between the rotating arches 24,
24 fixed arch 18 and left and right vertical arches 1
4 and 15 are connected, and one cycle of packaging immediately starts as described above. fixed arch 18
is located at least at a lower position than the upper part of the conveying device 12 consisting of a conveyor line, so that objects to be packed can be packed vertically and horizontally together with pallets as shown in FIG.

【effect】

As described above, the present invention provides an upper arch having curved ends, left and right vertical arches connected to the curved ends of the upper arch, and a lower arch connected to the lower ends of the left and right vertical arches for carrying objects to be packed. The main body includes a band guide arch for arranging a band around the band guide arch, and a mechanism for feeding the band into the band guide arch, pulling it back, tightening it against the object to be packed, and bonding and cutting the band. The upper arch is mounted on the main body which can be raised and lowered, and the tips of the curved portions at both ends of the upper arch are formed in a comb-like shape. A plurality of flaps that can be opened and closed are provided in each arch except for the curved portions at both ends of the upper arch, and the tips of the curved portions are respectively engaged with the upper and lower ends of the plurality of flaps of the left and right vertical arches to form the left and right vertical arches. Since the plurality of flaps can be sequentially opened and closed at the curved portions at both ends of the upper arch by raising and lowering the main body, the upper arch can be smoothly raised and lowered relative to the left and right vertical arches and communicated with the left and right vertical arches. This makes it possible to carry out efficient packing work, and the lowering position of the main body is lowered so that even small objects can be packed, and there is no problem even when the objects are placed on the conveyor. Can be packed. Furthermore, since the left and right vertical arches are fixedly provided, it is also possible to arrange a slide arch and a fixed arch side by side as the lower arch.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a conventional packaging machine that vertically ties a band around an object to be packed. Figures A to C show a so-called horizontal packaging machine, and Figure D shows a so-called inverted packaging machine. 2 to 6 show one embodiment of the present invention, in which FIG. 2 is a perspective view showing the whole, FIG. 3 is a side view, FIGS. 4 and 5 are partially enlarged views, and FIG. The figure is a perspective view of an object to be packed together with a pallet by the packing machine of the present invention, and FIG. 7 is a partial perspective view of the curved portions at both ends of the upper arch. 10...Control unit, 11...Spiral rod, 12...
Conveyor line (transport device), 13...pallet,
14...Left vertical arch, 15...Right longitudinal arch, 16...Slide arch guide, 17...Lower arch (slide arch), 18...Lower arch (fixed arch), 19...
Support frame, 22...Flap, 23...Chain, 24
...Rotating arch, 25...Drum, 26...Wire,
27... Spring, 28... Slide arch motor, 29... Stopper, 30... Upper arch, 40...
Machine frame, W...Item to be packed.

Claims (1)

[Scope of Claims] 1. An upper arch having curved ends, left and right vertical arches connected to the curved portions of both ends of the upper arch, and a lower arch connected to the lower ends of the left and right vertical arches surrounding the packaged object. a band guide arch for disposing the band in the band guide arch, feeding the band into the band guide arch;
It has a main body equipped with a mechanism for pulling back, tightening the band against the object to be packed, and adhering and cutting the band, and is provided so that the main body can be moved up and down to approach and separate from the object to be packed as much as possible, and the upper arch is moved up and down by the object to be packed. The upper arch is attached to a flexible main body, the tips of the curved portions at both ends of the upper arch are formed in a comb-teeth shape, and a plurality of flaps that can be opened and closed are provided in each arch other than the curved portions at both ends of the upper arch, and The tips of the curved portions are respectively engaged with the upper and lower ends of the plurality of flaps of the left and right vertical arches, so that the plurality of flaps of the left and right vertical arches can be sequentially opened and closed by the curved portions at both ends of the upper arch by raising and lowering the main body. This is an inverted packaging machine that is characterized by: 2. The inverted packaging machine according to claim 1, wherein the lower arch is a fixed arch disposed below the conveyor line. 3. The inverted packaging machine according to claim 1, wherein the lower arch is a slide arch that can be freely connected to and detached from the lower ends of the left and right vertical arches and can move forward and backward into the fork insertion opening of the pallet. 4. Claim 1, wherein the lower arch comprises a fixed arch disposed below the conveyor line, and a sliding arch that can be freely connected to and detached from the lower ends of the left and right vertical arches and can move forward and backward into the fork insertion opening of the pallet. An inverted packing machine.