JPH0431928B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Application of the Invention) The present invention relates to an apparatus used for automatic packaging of packages using paper packaging mounts, and is typically used for packaging mass-produced products such as glass tumblers. The present invention relates to a locking device that can automatically lock folded paper packaging mounts used to make several packages into one package. (Background of the Invention) The following explanation will be made using an example of packaging three glass tumblers as a set to which the present invention is typically applied; however, the present invention is not limited to this. It's not the purpose. BACKGROUND ART Conventionally, a packaging format in which a relatively thick cardboard mount 1 as shown in FIG. 1 is provided with predetermined cuts and fold lines and used as a packaging container is well known. FIG. 1 shows an example of a packaging container used in the hanging device of the present invention.
2, 2, 2 are fold lines, respectively, and the mount 1 is divided into a bottom piece 3 at the center, side wall pieces 4, 5 on both sides thereof, and lid pieces 6, 7 at both ends. In addition, cut holes 8, 8, 8 are formed in the one lid piece 6 so as to partition the U-shaped tongue pieces 9, 9, 9 so that the tips thereof are directed toward the end of the lid piece 6. is engraved on the other lid piece 7, and insert tongue pieces 10, 1 in the shape of an arrow are engraved on the other lid piece 7.
0 and 10 are engraved with their tips facing toward the end of the lid piece 7. These insertion tongue pieces 10 and cut holes 8
is a pair of combinations in which an insertion tongue piece is inserted into a notch hole, and in this illustration, three glass tumblers are packaged together, so the above combination There are three pairs of these. Note that three pairs of chevron-shaped cut holes 11 and 12 are cut into the side wall pieces 4 and 5 , forming an upper and lower pair so as to be connected to the fold lines 2 and 2 that touch the upper and lower sides of the figure, respectively. This is for positioning by engaging a part of the outer periphery of the tumbler to be packaged with the notches 11 and 12.
Further, 2' is a perforation that allows the mount to be separated for each tumbler. Conventionally, packaging of three tumblers together using such a mount 1 has been carried out manually in the order of A→B→C in FIG. That is, first, fold the fold lines on both sides of the bottom piece 3 of the mount 1 to create the state A shown in FIG . The folding lines 2, 2 are bent and the lid piece 6 and the lid piece 7 are superimposed on it to form the state shown in FIG. 2B. Next, using a stick-like tool, manually push the insertion tongue piece 10 into the cut hole 8 side, and align the gill part of the insertion tongue piece 10 with the arrow on the back side of the cut hole 8 to the outer edge of the hole 8. The package is then latched to form a locked package as shown in Figure 2C. However, in the conventional situation where all of this series of work is performed manually, the work efficiency is extremely low, and therefore there is a high demand for packaging automation except in the case of packaging of extremely small lots. automated equipment that can still adapt to this
No equipment has been seen. For example, the Special Public Interest Publication in 1977-
As disclosed in Japanese Patent No. 24637, a device for simply pushing the insertion tongue piece 10 into the cut hole 8 in an automated and mechanized manner has already been proposed. In such a device, the insertion tongue and the U-shaped tongue at the lock portion both face inward as shown in Figure 8 of the same publication, creating a hole-like condition. The disadvantage is that only unsightly packaging can be provided.
In other words, such a packaging format not only allows dust to easily enter the product, but also spoils the appearance of the product, which may be displayed as a package, and reduces the product value. Under such current circumstances, the present inventors have developed a series of mechanized packages that do not have perforations in the latching portions, as shown in FIG. The present invention was developed after conducting various studies on devices that can carry out such packaging operations. (Object of the Invention) As explained in FIG. 1 and FIG. To provide a locking device which can mechanically and automatically perform the work of inserting and locking into a lock. Another object of the present invention is to pull up the U-shaped tongue piece formed by the U-shaped cut hole to the outer surface of the packaging paper by means of a hook, thereby preventing the packaging from having holes in the lock portion. A latching device may be provided that can form a body. (Summary of the Invention) The gist of the locking device used for locking paper packaging mounts of the present invention, which has been made to achieve the above-mentioned object, is that the locking device is provided with cuts carved to partition U-shaped tongues. One piece with the insertion hole and the other piece with the insertion tongue shaped like an arrow engraved are placed above the notch with the tips of the insertion tongues facing the U-shaped root side of the notch. By pushing the insert tongue piece into the cut hole of the paper packaging mount prepared in a stacked state, the arrow-shaped gill part of the insert tongue piece is placed on the outer edge of the back side of the cut hole. The latching device is adapted to be latched and locked, and includes a claw member for pushing the insertion tongue into the notch hole, and a claw member for pushing the insertion tongue into the notch hole, and a hook member for pushing the insertion tongue into the notch hole, and a hook member for pushing the insertion tongue into the notch hole. a driving means for reciprocating the claw member between the pushed-in positions, and a hook is provided at the tip of the claw member in the pushing direction to engage with the tip of the U-shaped tongue on the cut hole side, The hook engaged with the tip of the U-shaped tongue at the pushed-in position is provided so that the U-shaped tongue is pulled up to the outside of the packaging board by the return movement back to the front position, and this claw member is attached to the U-shaped tongue. It is characterized in that it is formed of a leaf spring material that can be wrapped in the extending direction. The device of the present invention is most typically applied when the paper packaging mount has the configuration shown in FIG. 1, and three tumblers are packaged together using this. For this purpose, a locking device is realized with three claws so that three sets of insertion tongues can be inserted into the cut holes in one operation. (Embodiment of the invention and its effects) An embodiment of the present invention will be described below based on drawings 3 to 7. The packaging mount used in this embodiment is the same as that shown in FIG. 1. Therefore, the symbols explained in FIGS. 1 and 2 are used as they are in the following figures. Furthermore, since the latching device of the present invention exhibits its functions and effects most effectively when incorporated into a series of automatic packaging equipment developed by the present inventor, it will be described together with such a series of equipment. Here, the steps of the packaging work in the series of equipment include the first step of shaping and preparing the mount 1 into the posture shown in FIG.
The second step is to align and position the tumblers and place them there.Then, the third step is to place the pair of lid pieces 6 and 7 on top of each other in a predetermined order and transfer them to the locking position. This is configured as the first to fourth steps of a fourth step in which the package moved to the position is latched and locked by pushing the insertion tongue piece 10 into the notch hole 8. FIG. 3 is a schematic diagram for explaining the first step, in which a large number of flat mounts 1 are stored in a mount magazine 14 in a stacked state, and the end of the opening 15 of the magazine 14 is The bottom layer is pressed by a spring or the like so as to face the bottom layer, and is locked by an edge flange 16 at the end of the opening 15. The mount 1 is housed so that its outer surface when packaged faces outward from the end of the magazine opening 15, and can be taken out one by one from the magazine by climbing over the edge flange 16 by means of a take-out rod 17, which will be described later. ing. The take-out rod 17 of this example is provided with a circular arc portion 17a that swings along an arc centered on the shaft 18, and is operated by an air cylinder device shown in FIG. The posture changes from E to F to D are repeated. A vacuum pad 19 is provided at the tip of the arcuate portion 17a of the take-out rod 17, and the vacuum pad 19 can be engaged with three surfaces of the bottom piece of the mount 1 facing the opening in the magazine 14. After rotating the take-out rod 17 to position it in the state shown in FIG. 3D, the mount 1 is suctioned and brought into close contact with the vacuum pad 19, and then the take-out rod 17 is rotated counterclockwise in the figure. By doing this, one sheet of mount 1 can be pulled out from the magazine 14. FIG. 3E shows the state in which the mount 1 is pulled out. Further, two pairs of receiving rods 20 and 21 are arranged on the extraction rod 17 so as to sandwich the motion trajectory of the circular arc portion 17a, and these receiving rods 2
0 and 21, the upper one 20 is provided with a slightly wider distance between the pair, and the lower one is provided with a slightly narrower distance between the pair. This is these receiving rods 2
0 and 21, the mount 1 pulled out from the magazine 14 is shaped into a substantially erect U-shape with the bottom piece 3 as the center, and the mount 1 is shaped to receive a tumbler in the next process. This is because when receiving a tumbler, it is preferable that the upper side of the mount 1 be opened slightly wider. The mount 1 pulled out from the magazine 14 is shaped into a substantially erect U-shape by the receiving rods 20 and 21, as shown in FIG. 3F, and the first step is completed. In this first step, the mount 1 in the magazine 14 is removed only by repeating the rotation of the take-out rod 17.
It is possible to take out the sheets one by one and bring them into the state shown in FIG. 3F (that is, the state A in FIG. 2). Next, to explain the second step, in this step, 3
This is a process in which two tumblers are placed on the bottom piece 3 in a fixed positional relationship, and is explained with reference to FIG. The apparatus shown in FIG .
It is a drop-in device that drops while aligning (for example, at equal intervals) on the top, and is located slightly above the shaping mount 1 at the position shown in FIG. 3F and on the opposite side from the magazine 14. It is set up like this. The dropping device of this example has an axis 24 between the horizontal position shown in FIG. 4G and the tilted position shown in FIG. 4H.
It consists of a drop-in tray 22 which is provided so as to be repeatedly tilted around the center, and on its upper surface side there are three line troughs 23, 23, 2 partitioned by partition walls.
At the same time, a stopper 2 is formed on the upper side of these troughs, with a gap between the bottom plate and the tumbler sufficient to allow the tumbler to fall and slide.
5 has been constructed. The tilting of the drop-in tray 22 is driven by an air cylinder device shown in FIG. 5, and is repeatedly performed in synchronization with the shaping of the mount 1 described above. For this drop tray 22,
As shown in FIG. 4G, the tumblers are fed in by a suitable conveyor 26, but since only three tumblers are dropped onto the mount 1 at a time by tilting, the drop tray is Figure 5 3.Only 3 tumblers can be placed on top of 22 by adjusting the timing and tilting of the tumblers.
It is usually necessary to provide infeed control means shown at 1,34. Therefore, three tumblers 1 are placed in the state shown in Fig. 4G.
When the drop tray 22 on which the tumbler 3 is placed is tilted to the state shown in FIG. 3H, the tumbler 1 on the tray 22
3 falls down when it hits the stopper 25, and in this state it is dropped onto the mount 1 below while sliding inside the trough. In addition, 25' is a jump prevention bar that prevents the tumbler from jumping. The tumbler 1 slides down from each trough 23 against the shaped mount 1
3 falls approximately vertically from inside the trough 23, and if the bottom piece 3 of the mount 1 is kept horizontal, it will always fall and remain at a fixed position unless an excessive drop is applied, and the impact of the fall will be reduced. It has been confirmed by operating a practical machine that the vibrations, bouncing, etc. that occur at that time do not pose any practical problems. Furthermore, it has been confirmed that the impact when the tumbler is knocked down by the stopper 25 on the drop-in tray 22 does not cause any problem.
If necessary in the case of an extremely thin tumbler or the like, a soft member may be used for the tray, especially the bottom plate portion. With the above, the second step is completed, and as shown in FIG. 4I, three tumblers 13 are placed on the bottom piece 3 of the shaped mount 1. As is clear from the above description, these first and second steps can be performed between the positions where the magazine 14 and the dropping device face each other, and do not take up much space in terms of equipment. This is extremely advantageous in practice. FIG. 5 shows a specific example of an apparatus configuration in which both the mount feeding and shaping device and the tumbler dropping device shown in FIGS. 3 and 4 are installed facing each other. In this figure, 31,
32 and 33 are air cylinder devices, and 34 is a locking pawl for controlling feeding of the tumbler to the tray 22, which is intermittently moved up and down by the air cylinder device 33. The three tumblers are operative to be transferred from the conveyor 26 onto the tray 22. By shaping and dropping the mount in this manner, it is possible to maintain an appropriate distance between the tumblers placed on the mount, thereby preventing collisions during transportation. Next, the third step will be explained. This is a preparation state in which the mount 1 on which the tumbler is placed, shown in the state shown in FIG. This is a process to achieve this, and the state of bending is shown in Figure 6. In this example, the lid pieces 6, 7 may be bent by a known method using a bent guide bar provided along the way of conveyance. The reason why this third step is performed midway through the predetermined conveyance path is because of the above-mentioned shaping of the mount 1, the working position for dropping the tumbler, and the position of the insertion tongue 10 in the cut hole 8.
This is because it satisfies the request that the lock work position for pushing the lock in a separate position is better from the standpoint of equipment or work efficiency, and realizes an efficient configuration and layout of the entire equipment. FIG. 7 shows a plan view of an example of the arrangement relationship between the overall equipment and the guide bar, in which numeral 35 indicates the first and second process working positions for shaping the mount and dropping the tumbler, and numeral 36 indicates the transport position. A third step working position is where a plurality of guide bars 39 are provided above the conveyor 38, and a fourth step working position 37 is a lock for hanging a packaging mount which will be described later. Next, the packaging mount 1 is shaped through the third process.
is transferred to the locking position where the device to which the present invention is applied is placed, and the locking operation of the fourth step is performed. FIG. 8A shows a perspective view of the device for performing the locking operation, FIG. 8B shows a side view of the same, and FIG.
FIG. 10 is a series of diagrams showing the relationship between the movement of the working claw 27 and the movement of the insertion tongue 10 and the U-shaped tongue 9 during the locking operation. The latching device in this example includes three sets of insertion tongue pieces 10.
and three working claws 27 corresponding to the set of cut holes 8.
are fixed in parallel to a common base 28, and this base 28 is swingable about a shaft 41 so that the insertion tongue 10 can be pushed into the cut hole 8. 40 is an air cylinder device for swinging the base body 28. Further, a pair of pads 29 are disposed below the working claws 27 to restrain deformation of the unlocked package transferred to the locking work position by engaging the side wall pieces thereof during the work. The one on one side of these pads 29 is allowed to advance and retreat slightly by an air cylinder device 42, and the package is held between the pair of pads 29 with an appropriate force. The working claw 27 is made of a plate spring material that is flexible in the tip and root directions of the insertion tongue piece 10 (or U-shaped tongue piece 9), and
At its lower end (the tip where the insertion tongue is pushed in),
A hook 27a that can be hooked onto the tip of the U-shaped tongue piece 9 is bent. This structure of the working claw is adopted in order to finally pull out the U-shaped tongue piece 10 to the upper surface side of the lid piece 7 on the side of the insertion tongue piece 10 and ensure the closure in this part. . That is, if the insertion tongue piece 10 is simply inserted into the notch hole 8, a simple reciprocating movement of the rod-shaped member is sufficient, but in this case, the pair of tongue pieces 9, 10
This results in the appearance of depressions as the particles enter downward, which is not only unfavorable in terms of appearance, but also allows the intrusion of dust and the like, thus defeating one of the purposes of the packaging. Therefore, in the present invention, the insertion tongue piece 9 is not simply pushed in with a bar-shaped working claw, but the U-shaped tongue piece 9 on the notch hole side is simultaneously pulled out to the upper surface of the upper cover piece 6, and this U-shaped tongue piece 9 is pulled out at the same time. Thus, the upper part of the insertion tongue piece 10 inserted downward is closed. Referring to FIG. 10, the movement of the insertion tongue piece 10 by the working claw 27 of this example will be explained. The lid pieces 6 and 7 are overlapped with the lid piece 6 on the lower side and the lid piece 7 on the upper side. The working claw 27
Press down the insertion tongue 10 so as to push it into the cut hole 8 (see FIG. 10 J and K). At this time, the side wall pieces 4 and 5 of the package are fully or partially abutted with pads 29 made of sponge material or the like to prevent deformation of the package. By pressing down the working claw 27, the insertion tongue piece 1 of the lid piece 7
0 tilts while pushing down the U-shaped tongue piece 9 on the lid piece 6 side with its tip side, and the tip portion including the arrow gill part enters the back side of the lid piece 6 (see FIG. 10K). Next, the working claw 27 is further pushed in so that the hook 27a at its tip engages with the tip of the U-shaped tongue piece 9. The pushing amount at this time may be set in advance from the length dimension of the U-shaped tongue piece 9. Furthermore, in order to prevent the lid piece 7 from bulging upward and deforming due to the bending deformation of the tongue piece 10 during the pushing process, in this example, a presser claw 30 shorter than the working claw 27 is attached to the base body 28. The upper surface of the lid piece 7 is lightly pressed by the presser claw 30 (see FIG. 10L). In the pushing operation of the insertion tongue 10 of the working claw 27 described above, it is appropriate to start pushing the tip end of the insertion tongue 10 so that it is near the base of the insertion tongue 10 when the pushing is completed. be. This ensures that the insertion tongue piece 10 is pushed into the notch hole 8, and then
In order to effectively pull up the letter-shaped tongue piece 9 toward the upper surface of the lid piece 7, it is preferable to apply the movement K→L→M as shown in FIG. 10. This is because the restoration will match well. In addition, in this example, the insertion tongue piece 10
A fold line 43 is previously formed at the base of the insert tongue piece 10 so that the insertion tongue piece 10 can be easily bent. The U-shaped tongue piece 9 is pulled up during the initial movement (upward movement) of the working claw 27 by engagement with the end hook 27a of the working claw 27 (FIGS. 10M and N).
reference). At this time, the working claw 27 is bent toward the tip of the U-shaped tongue 9, so that the U-shaped tongue 9 can accommodate the above-mentioned drawer without bending. In addition, when using a non-flexible working claw, pushing in the insertion tongue piece and pulling out the U-shaped tongue piece can be achieved by mechanically applying a movement of the working nail that approximates the above-mentioned bending deformation. be done. With the above, the fourth step is completed, and the obtained package is obtained in the state shown in FIG. Its work efficiency is extremely effective, reaching several tens of times that of conventional methods. Moreover, since the resulting packaging is obtained by repeating the same mechanical operation, there is almost no variation between products, and the appearance of the lock part is also the same as the second one.
As shown in Figure C, it was a good product, and its practical effects were extremely large. (Modifications of the Invention and Effects thereof) As mentioned above, the latching device of the present invention is suitably used as a part of the series of equipment described above, but it is not limited to this. The device is sufficiently effective even when used alone,
It may also be combined with other modified equipment. In addition, there are no restrictions on the packaging type, such as packaging three tumblers in one package, or on the number of items to be packaged or combinations. , their location, and number. In short, it is sufficient that the insertion tongue can be pushed into the notch hole by the working claw. Further, the presser claws or the presser pads on the side wall pieces, which were explained as being used together with the work claws in the above embodiments, are not necessarily limited to these, and may be provided as necessary, and there are no restrictions on their shape or material. . For example, the presser pawl may be a pad that presses the lid piece regardless of the movement of the working pawl, and the presser pad on the side wall piece may be rod-shaped. (Effects of the Invention) As described above, the locking device used for locking paper packaging mounts according to the present invention has a relatively simple configuration and achieves this type of locking automation, which has not been achieved in the past. Furthermore, the locking condition is more stable and better than conventional manual locking, and it is particularly applicable to a series of automated equipment, making it extremely useful. Further, according to the locking device of the present invention, since the U-shaped tongue piece of the locking portion is pulled up to the surface of the molded packaging mount, the locking portion does not have a hole, which improves the design. This also has the effect of providing an excellent packaging body.

[Brief explanation of drawings]

Figure 1 is a developed view showing an example of a paper packaging mount used in the device of the present invention, Figure 2 is a diagram for explaining the packaging procedure using this mount, and Figures 3 to 10 are diagrams showing the packaging mount of the present invention. FIG. 3 is a diagram showing a series of automatic packaging equipment for explaining an embodiment of the device, in which FIG. 3 shows the mount forming process, FIG. 4 shows the tumbler dropping process, and FIG. 5 shows the process shown in FIGS. 4 is a diagram showing an example of a specific equipment configuration, FIG. 6 is a diagram showing the transportation and folding process of the pre-locked package, FIG. 7 is a diagram showing the relationship between the transportation and folding process and the overall equipment, and FIG. ，
B shows the rod locking device, A is a perspective view, B is a side view, FIG. 9 is a diagram showing the state immediately before locking operation,
FIG. 10 shows the state of movement according to the process sequence for a series of locking operations. 1...Packaging mount (mount), 2...Folding line, 2'...
...Perforation for cutting, 3 ...Bottom piece, 4 , 5 ...
Side wall piece, 6, 7... Lid piece, 8... Cut hole, 9...
U-shaped tongue piece, 10... Insert tongue piece, 11, 12...
Chevron cut, 13... Tumbler, 14... Mount magazine (magazine), 15... Opening, 16...
Edge flange, 17... Takeout rod, 17a... Arc portion, 18... Shaft, 19... Vacuum part, 2
0,21...Receiver rod, 22...Drop tray,
23...Trough, 24...Shaft, 25...Stopper, 25'...Jump prevention bar, 26...Conveyor,
27... Working claw, 27a... Hook, 28... Base body, 29... Presser pad, 30... Presser claw, 3
1, 32, 33...Air cylinder device, 34...
Locking claw, 38... conveyor, 39... guide bar, 40, 42... air cylinder device, 41...
Axis, 43... crease.

[Claims]

1. Between the first step of clamping and pulling the binding band and the second step of cutting off the excess portion of the band after the band reaches the set tension, the second step is performed when the band reaches the set tension. A binding method in which a step of moving to the second step and a step of moving to a second step after the tension of the band reaches a set tension is relaxed are arranged so as to be switchable. 2. A binding tool that has a clamping tension mechanism and a cutting mechanism for a binding band, and the cutting mechanism is activated after the band reaches a set tension, and an element and setting that activates the cutting mechanism when the band reaches the set tension. A binding tool comprising an element that operates a cutting mechanism after the tension of the band that has reached tension is relaxed, and the operation of which can be switched.

Claims (1)

The first claim characterized in that
A latching device used to lock paper packaging mounts as described in 2. 3. A hook used for locking a paper packaging mount according to claim 2, wherein the package is a plurality of glass tumblers arranged in the axial direction of a packaging mount folded into a cylindrical shape. Stop device. 4. A plurality of pairs of insertion tongues and cut holes of the packaging mount are arranged in the axial direction of the packaging mount folded into a cylindrical shape, and claws for pushing the insertion tongues are provided in each of the plurality of pairs of tongues. Claim 2 or 3, characterized in that one piece is provided facing the other.
A latching device used to lock the paper packaging mount described in Section 1.