JPS5845947B2 - packaging box forming equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a packaging box forming apparatus, and more specifically, the present invention relates to a packaging box forming apparatus, and more specifically, it transforms a packaging box made of cardboard or the like from a flat state into a rectangular parallelepiped shape, and folds and attaches the inner and outer flaps that make up the bottom of the packaging box. The present invention relates to a packaging box forming apparatus that forms packaging boxes into a state in which the contents can be placed inside.

Conventionally, the packaging box forming equipment described above has attached the inner and outer flaps using a solvent-based resin adhesive called cold glue, but cold glue dries and solidifies (1), which usually takes 30 to 60 seconds. , because this time is long,
There is a problem in that unless the transport distance of the packaging box is lengthened, it will not be possible to keep up with the speed increase of the device for loading the contents into the packaging box.

In addition, it was sometimes necessary to form many types of packaging boxes with different dimensions and shapes due to differences in the number of contents, etc., but conventional packaging box forming equipment could not be used to mold different types of packaging boxes. There was a problem in that it was troublesome to switch and required a long time to count votes.

Therefore, an object of the present invention is to continuously form a packaging box into a box shape from a stacked body of a large number of flat packaging boxes, and to form the inner and outer flaps of the bottom of the packaging box using conventional cold glue in a short solidifying time. To provide a packaging box molding device which enables high-speed molding by using another adhesive in combination, and can easily and quickly mold packaging boxes of different sizes and shapes.

Hereinafter, the packaging box forming apparatus of the present invention will be described in more detail with reference to preferred embodiments shown in the accompanying drawings.

1 and 2 show a packaging box forming apparatus according to an embodiment of the present invention.

The packaging box forming apparatus includes a flat packaging box laminate supply conveyor 1 (hereinafter simply referred to as a supply conveyor) that intermittently conveys a laminate 3 folded flat and stacked in a predetermined number of sheets.

This supply conveyor 1 is made up of two chains or strap-like belts arranged parallel to each other with an interval between them. Two forks 4 are arranged between the chains and extend along the chains, and one end of the forks 4 is supported by the lifting section.

This fork 4 lifts the stacked product 3 transported by the supply conveyor 1 upward, and the fork 4 has its lowest part positioned upward to support the lifted stacked product 3 at its ascent limit position. A laminate support hook 5a is provided to temporarily support the edge.

Such a fork 4 that can be raised and lowered and a laminate support hook 5
A and a constitute a bottom stacking type stacking device 5.

A feeding device 6 is provided above the stacking device 5 for intermittently feeding each flat packaging box of the stacked body 3 lifted by the fork 4 one by one.

That is, the feeding device 6 includes a plurality of air cylinders 8 extending downward, and at each piston rod end of each air cylinder 8, the top of the stack 3 positioned at a predetermined position by the stacking device 5 is attached. A suction cup 7 is provided to suck the flat packaging box 2 at the top.

Each of the air cylinders 8 is also swung left and right as seen in FIG. 1 by a swinging device 9 for pulling up a single flat packaging box 2 that has been sucked by the suction cup 7 and supplying it to feed rolls, which will be described later. movably supported.

On the right side of the feeding device 6 as seen in FIG. installed, especially the upper feed roll group 10
is connected to a lifting device 12 that is linked to a swinging device 9 of the feeding device 6.

The outlet measuring section of the feed rolls 10, 11 is the lower part on the right side in FIG. A supply end of an incoming conveyor 13 is installed, and the conveyor 13 extends to the right in FIG. 1 (conveying direction).

This conveyor 13 is similar to the supply conveyor 1 described earlier.
It consists of a chain conveyor made up of two endless chains arranged parallel to each other and spaced apart.

The transfer device includes a transfer conveyor 16 arranged in parallel along the input conveyor 13, and the conveyor 16 is arranged slightly in the conveying direction from the supply end of the input conveyor 13, and the conveyor 130 has two chains. Each outside ([1, I
A sprocket N6a is disposed adjacent to the chain, and a drive shaft 16 is located beyond the outlet end of the conveyor 13 and corresponds to the sprocket N6a.
The other sprocket t16c fixed to b and these 2
It is composed of two sprockets 116a and 16c as one set and a chain 16d that is respectively hung on two sets of sprockets.

That is, the transport conveyor 16 has two endless chains 1 arranged on both sides of the transport conveyor 13.
6d, and one pawl 15 is erected at one location of each chain 16d at the same position in the longitudinal direction.

Corresponding to such a conveyor 16, another conveyor 18 is installed above the conveyance path as an auxiliary means for stably conveying the rectangular parallelepiped-shaped packaging box.

The transport conveyor 18 installed above this is also constructed in substantially the same manner as the transport conveyor 16.

The conveyor 18 consists of a single endless chain 18a that is hung on a set of sprockets (not shown), and a pawl 17 is also provided on the chain.

Regarding these upper and lower conveyors 16.18, the first
The imaginary lines indicated by symbols 15a and 17a in the figure represent winter melon 15.
, 17.

The chains on both transport conveyors 16, 18iC1 are moved at the same speed in complete synchronization, and the claws 17 of the upper transport conveyor 18 are moved by the two claws 15 of the lower transport conveyor 16 when the lower transport conveyor 16 is operated. The chain is attached at an appropriate position so that when the wind 1γ comes into contact with the body surface of the box-shaped packaging box 2, the wind 1γ also comes into contact with the body surface of the packaging box 2.

As a result, the box-shaped packaging box 2 is moved along the transport path of the packaging box with two claws 15 extending from below.
It is pushed forward along the conveyance path by being supported at three points by one claw 17 hanging down from above.

The middle of the carry-in conveyor 13 in the conveying direction is a first station for forming flat packaging boxes into a box shape, and a box forming device is installed at this first station.

This box forming apparatus is composed of a suction device 30 installed above the conveyance path of the input conveyor 13, and a suction device 20 installed between the two chains of the input conveyor 13 and slightly below the conveyance surface. There is.

As shown in FIG. 2, this latter suction device 20 is arranged to extend along the longitudinal direction of the carry-in conveyor 13, and has an air cylinder whose right end is pivoted to an appropriate part of the frame, and which is attached to the end of the piston rod. Two suction cups 2
1, and the end of the piston rod to which this suction cup 21 is fixed is connected to the piston rod of an air cylinder 22 installed vertically upward.

The main body of the air cylinder 220 is supported immovably in the vertical direction and slidably in the transport direction of the carry-in conveyor 13.

On the other hand, the former suction device 30 is located closer to the transport direction than the other suction device 20 (on the right fJllJ as seen in FIGS. 1 and 2).
), and a plurality of air cylinders 31 are mounted downwardly on the upper mounting frame 19 at positions slightly offset from each other, and a suction cup 32 is mounted on the piston rod end of each air cylinder.

The number of suction cups 32 is
There are four in total, two that attract the outer flap 2b of the upper piece, and two that attract the outer flap 2b of the upper piece.

The box forming device includes upper and lower suction devices 30.
, 20, there is a stopper 23 for accurately stopping the flat packaging boxes carried on the carry-in conveyor 13 at the first station, and a stopper 23 for accurately stopping the flat packaging boxes conveyed on the carrying conveyor 13, and a stopper 23 for accurately stopping the flat packaging boxes carried on the conveyor 13 at the first station. a push-up plate 25 for pushing up a part of the packaging box when it is formed into a standard box, and left and right inner flips 2c that are opened at the bottom of the packaging box, which is located at the measuring section of the carrying conveyor of the packaging box shaped like a rectangular parallelepiped. The folding plate 29 includes a pair of folding plates 29 into which the folding plate 29 is folded, and a pressing plate 27 which presses down the lower outer flap 2b when the inner side flap 2c is folded by the folding plates 29.

The above-mentioned stopper 23 is released from an air cylinder installed upwards on a suitable fixed part between the two chains of the carry-in conveyor 130, and the piston rod of the air cylinder protrudes vertically across the conveyance path and moves forward. The flat packaging box is stopped by coming into contact with the front edge of the flat packaging box.

Further, the push-up plate 25 is attached to an air cylinder 24 which is attached upward and forward to a suitable fixed part between the chains of the carry-in conveyor 13 at the rear of the flat packaging box stopping position, that is, on the left side as seen in FIG. It is attached to the end of the piston rod.

As a result, the push-up plate 25 advances forward and upward from the lower side of the conveyance path, and comes into contact with the packaging box trunk side, which faces downward in the flat state, and pushes it up.

Further, a pair of folding plates 29 are substantially aligned along one side of the inlet conveyor 13 and are carried by respective support rods extending outwardly from the inlet conveyor 13 .

Each of these support rods is connected by an arm to each rotating shaft extending vertically downward, and the lower end of each rotating shaft is equipped with two gears meshing with each other.
8.28 is fixed.

Furthermore, one of the gears 28 meshes with a worm (not shown) attached to one drive shaft of a suitable drive source, so that when the worm rotates in the forward or reverse direction, each gear 28 is rotated. Rotate in the opposite direction, each folding plate 2
9 move away from each other in an arc shape around their respective rotation axes (
Figure 4).

As is clear from FIGS. 2A and 4, the presser plate 27 that presses down the outer flap 2b on the lower side of the packaging box 2 is attached to the outside of the measuring part of the packaging box 2 fixed at the first station. On the other hand, the air cylinder 2 is attached to a suitable position on the device frame 14.
6 is fixed to the end of the piston rod.

This air cylinder 26 is disposed toward the bottom of the stationary packaging box 2 facing the conveyance direction, and therefore the presser plate 2
7 can extend toward the bottom of the packaging box, thereby pressing down on the lower outer flap 2b when folding the inner flap 2c.

In this way, the packaging box 2 is formed into a rectangular parallelepiped shape at the first station and the inner flap 2c is folded in (Fig. 3d).
is moved along its transport path by a transport conveyor 16, 18 to the next second station adjacent to the position in question.

At this second station, an adhesive applicator 33 is provided at a suitable position on the bottom side of the packaging box along the transport path.

This adhesive applicator 33 includes a hot melt gun 34 arranged to spray adhesive toward the inner flap 20 surface, and a cold glue gun 35 arranged to spray adhesive toward the inner surface of the outer flap 2b. In addition, a pair of supporting rollers 36 arranged above and below are provided to support the upper and lower outer flaps 2b, which are not yet closed, from bending toward the inner flaps when spraying adhesive with each of the guns 34 and 35. It is also equipped with

The pair of support rollers 36 are supported so as to be able to approach and separate from each other, and even if the outer flap 2b of the upper piece bends slightly due to its own weight, it can quickly enter the flesh of the outer flap 2b and support it in a predetermined state. It is made possible.

At a third station adjacent to the second station in the conveying direction, there is a packaging box 2 whose inner flap 2c:Th and outer flap 2b are each coated with different types of adhesives, as shown in FIG. 3e. An outer flap forming device is installed for folding the outer flap 2b.

This outer flap forming device is located on one side of the packaging box bottom side of the conveyance path, is attached to the upper mounting frame 19A and the device frame 14, respectively, and is arranged vertically across the conveyance path, and is arranged on the conveyance direction side. Horizontal guide bar 3
It is composed of 7°38.

The aforementioned transfer device also includes an output conveyor 42, which is installed in communication with the outlet end of the transport conveyor 16.18.

This carry-out conveyor 42 is also arranged so as to linearly extend the conveyance path of the packaging boxes by the conveyor 16, and is constructed by having claws 41 erected on a single endless chain.

This carry-out conveyor 42 is the conveyor conveyor 16 described above.
1 is driven in synchronization with 18.

The carry-out conveyor 42 on this conveyance path serves as a fourth station for crimping the bent outer flap onto the inner flap.

That is, at the fourth station, a pressure bonding plate 43 is arranged on one side of the packaging box conveyance path.

This pressure bonding plate 43 is fixedly supported at the end of the piston rod of the cylinder device 44, so that it can be moved in and out in a direction transverse to the conveyance path.

As shown in FIG. 6, this pressure bonding plate 43 is in close contact with the bottom of the packaging box located at the measurement section of the conveyance path from the outside.

Another pressure bonding plate 46 is disposed on the opposite side of the conveyance path from this pressure bonding plate 43, and this pressure bonding plate 46 also has a cylinder device 4.
It is attached to the end of the piston rod 5 and is extendable in the transverse direction of the conveyance path, facing the one pressure bonding plate 43.

This pressure bonding plate 46 is formed to be smaller than the opening area of the packaging box 2, so that the pressure bonding plate 46 enters the inside of the packaging box from the opening and comes into close contact with the inner surface of the bottom portion.

As a result, as shown in FIG.
The inner flap and outer flap, which are sandwiched between b and the outer flap and thereby constitute the bottom part, are pressed together and bonded together with the aforementioned adhesive applied to their predetermined locations.

Furthermore, since each flap at the bottom of the packaging box 2 is crimped by the two crimping plates 43 and 46 mentioned above at this fourth station, it is necessary to accurately stop the packaging box at a predetermined position. .

Therefore, this fourth station is provided with a positioning plate 49 (FIG. 1) that moves in and out from the bottom of the conveyance path upward.

The movement of the positioning plate 49 into and out of the transport path is controlled by the positioning plate 49.
A cylinder device 4 connected via a suitable link mechanism to
8.

Two crimp plates 4 at such a fourth station
3.46, the positioning plate 49, and each cylinder device [i44, 45.48 for operating these constitute a flap crimping device for crimping the flap at the bottom of the packaging box.

Furthermore, the upper mounting frame 19 attached to this packaging box forming device is
It is supported by a plurality of threaded rods 40 that are screwed into respective threaded holes formed in a portion thereof, extend vertically downward, and are fixed to the device frame 14, and each of the threaded rods 40 is mounted on the upper mounting frame 19. It is rotated by a geared motor 39.

As a result, the upper mounting frame 19 is vertically adjusted relative to the device frame 14.

Next, the operation of the packaging box forming apparatus configured as above will be explained.

As shown in FIG. 3a from the left side of FIGS. 1 and 2, when a stack 3 in which a predetermined number of flat packaging boxes 2 are stacked is advanced by the supply conveyor 1 at its outlet end 1, as shown in FIG. The limit switch is actuated to stop the feed conveyor 1 and the lowered forks 4 rise to support the stack 3 on the outlet end of the feed conveyor 1 and raise it in position 1.

Next, the suction cup 7 of the supply device 6 descends to press the flat packaging box 2 at the top.

Next, this suction cup 7 is placed in one of the flat packaging boxes.
Only the packaging box 2 is vacuum-suctioned and lifted up, and the packaging box 2 is swung forward by the swinging device 9, and the suctioned packaging box 2 is inserted between a pair of feed rolls 10 and 11.

At this time, the upper feed roll 10 is raised by the lifting device 12, so that the upper and lower rolls are spaced apart from each other.

Next, when the upper feed roll 10 descends and clamps the flat packaging box 2 with the lower feed roll 11, the suction of the packaging box 2 by the suction cup 7 is released, and the rotation of the upper and lower feed rolls 10 and 11 releases the packaging box 2 from being sucked. The packaging box 2 is placed on the carry-in conveyor 13 (FIG. 3b).

On the other hand, the suction cup 7 returns to the position before operation.

Each time a plurality of flat packaging boxes 2 at the top of the stacked body 3 are fed to the feed roll, the stacked body 3 is raised by a required height by a fork 4, and the above-described feeding of the packaging boxes 2 is repeated intermittently.

When the fork 4 reaches its upper limit, the stack support hook 5a of the stacking device 5 protrudes by an appropriate means.
The small number of remaining packaging boxes 2 is supported and the aforementioned feeding operation is continued.

While the packaging box 2 on the laminate support hook 5a is not missing,
A fork 4 descends at the outlet end 1 of the supply conveyor 1 and supports and lifts another stack 3 which has been brought to that end by the action of the supply conveyor 1.

Next, when the uppermost packaging box 2 of the new laminate 3 reaches a position where it almost contacts the lowermost packaging box 2 supported by the laminate support hook 5a, the fork 4 stops rising, and the laminate support hook 5a retracts.

In this way, new stacks 3 are constantly replenished.

On the other hand, a pair of feed rolls 10. As is clear from Fig. 3, the flat packaging box 2 that came out of the '11 was transported in a direction in which it was laid down so that the fold line of the main body of the packaging box crossed the conveyance route. It is placed on the conveyor 13.

Accordingly, the opening section of the packaging box 2 and the flaps forming the bottom section facing the opening section are located on both sides of the conveyance path.

When the flat packaging box 2 placed on the carry-in conveyor 13 in this state approaches the first station, its front end collides with the stopper 23 and stops.

At this first station, each suction cup 21 of the suction device 20 on the lower side of the box forming apparatus is lifted up by the air cylinder 22, and the body 2a of the packaging box 2 is lifted up by the air cylinder 22.
Vacuum suction the lower surface.

At the same time, each suction cup 32 of the upper suction device 30 descends to vacuum suction the upper surface of the body of the packaging box 2.

Subsequently, the upper suction cup 32 is raised by the air cylinder 31, and as shown in FIG. Due to the action of the air cylinder 240, the air cylinder 240 advances upwardly to push up the diametrical surface of the body of the packaging box 2, and reliably forms the body 2a of the packaging box 2 into a rectangular parallelepiped shape.

During this operation, each suction cup 21 of the lower suction device 20 is moved in the conveying direction by the action of the air cylinder to help form the packaging box 2 into a rectangular parallelepiped shape.

Next, at this first station, the outer flap 2b of the lower part of the packaging box 20 is pressed down by the advance of the holding plate 27 by the air cylinder 26, and the upper outer flap 2b is pressed down by the two suction cups of the suction device 300. 3
2, it is held in a horizontal state.

In this state, the pair of folding plates 29 are rotated, and the inner flap 2c at the bottom of the packaging box 2 is folded inward at right angles from the front and rear directions as shown in FIG. 3d.

After completing the above operations, press these folding plates 29° and press plate 2.
7. The push-up plate 25 and the suction cups 21.32 of each suction device 20.30 return to the state before operation, and the aforementioned stopper 23 is lowered.

Next, the upper and lower transport conveyors 1, which had stopped,
8.16 are driven synchronously, and these pawls 15.17 engage the body part of the packaging box 2 in the condition shown in Figure 3, d, and move the packaging box 2 to the second station. transport.

While the packaging box 2 is being transported by both transport conveyors 18 and 16 and passing through the second station, as shown in FIG. Hot melt adhesive 51 is sprayed and cold glue 52 is sprayed onto the upper and lower inner surfaces of the outer flap 2b using a gold glue gun 35.

In this way, the packaging boxes 2 coated with adhesive while passing through the second station are transported further to the third station by means of the transport conveyor 16.18.

Then, while the packaging box 2 is passing through the third station, the outer flap 2b protruding from the body 2a in the measuring direction is moved to the guide bar 37, 38 of the outer flap forming device.
is bent inward by

The packaging box 2, in which all the flaps constituting the bottom of the packaging box 2 are bent, is transferred to the conveyor 16.1.
8 to the carry-out conveyor 42 and sent to the fourth station.

At the fourth station, the packaging box 2 collides with a positioning plate 49 standing on the transport path and is stopped.

Next, the pressure bonding plate 43 moves forward and comes into close contact with the bottom outer surface of the packaging box 2, and the other pressure bonding plate 46 moves forward and is inserted into the packaging box 2 and comes into close contact with the bottom inner surface of the packaging box 2.

As a result, the inner and outer flaps 2 forming the bottom of the packaging box 2
c and 2b are clamped by circular compression plates 43 and 46.

As a result, the inner and outer flaps are glued together by two different adhesives 51, 52, completing the bottom of the packaging box 2, as shown in FIG. 3f.

Thereafter, the positioning plate 49 is pulled under the conveyance path by the operation of the cylinder device 48, and the packaging box 2 is carried out to the next contents loading process (not shown).

At this time, since the hot melt adhesive hardens in a short time, it is already hardened by the time it is carried out from the carry-out conveyor 42.

In addition, the cold glue also solidifies while being sent to the contents charging process, but even though the inner and outer flaps that are placed on the bottom of the packaging box are not compressed, the cold glue is already attached with hot melt adhesive. , reliable adhesion is achieved without any problems.

It goes without saying that the above-described forming operation is similarly performed on subsequent packaging boxes.

In addition, when using this packaging box forming apparatus to form packaging boxes with different widths (in the vertical direction in FIG. 3), the upper mounting frame 19 can be raised and lowered by the geared motor 39. conveyor 18, suction device 30 of the box forming device, and guide bar 3 for forming the upper outer flap.
The position of 7 can be adjusted in the vertical direction.

The difference in the height dimension of the packaging box 2 appears as a difference in the length of the packaging box 2 in the direction across the transport path.

However, in this device, the only part that is attached to the packaging box 2 is the bottom flap that faces one part of the transport path, so there is no need to make any substantial adjustments to each part of the device, and therefore the length of the packaging box is As long as the dimensions are not changed, a predetermined portion of the apparatus can be easily and quickly changed over to mold packaging boxes of different shapes and sizes.

In the present invention, the configuration for raising and lowering the upper mounting frame is not necessarily limited to that of the above-described embodiment, and can be modified as appropriate, and the upper part of the means for applying adhesive is It may also be provided on the mounting frame.

As explained above, the packaging box forming apparatus of the present invention is capable of continuously forming a laminate of a large number of flat folded packaging boxes into a box shape, and the flaps constituting the bottom of the stack are bonded together. By using hot melt, which has a short solidification time, and equal cold glue, which is resistant to heat but has a long solidification time, it is possible to shorten the transport distance in the contents loading process 1, making it possible to form packaging boxes at high speed. becomes.

In addition, by using hot melt and cold glue together,
A small amount of expensive hot melt is required, and cold glue can compensate for hot melt's sensitivity to heat.

Furthermore, the upper mounting frame, which is equipped with the upper l suction device of the box forming device, the upper transport conveyor, and the upper outer flap forming guide bar, can be adjusted in the vertical direction. When molding packaging boxes of different heights, a predetermined portion of the present device can be easily adjusted in a short time, and a wide variety of small quantities of packaging boxes can be molded with high operating efficiency.

Furthermore, as mentioned above, by using hot melt in combination, the upper mounting frame can be made smaller, which has the effect of making it easier to adjust its position in the vertical direction.

[Brief explanation of the drawing]

FIG. 1 is a side view showing one embodiment of the present invention, and FIG. 2 is a side view showing one embodiment of the present invention.
A plan view showing the device shown in the figure with some parts omitted, Figures 3a''-'e are side views showing the order of forming the packaging box, and Figure 4 is a presser plate that presses the upper outer flap and FIG. 5 is an explanatory view schematically showing a pair of folding plates for folding in the inner flap; FIG. 5 is a side view showing the supporting rollers supporting the upper and lower outer flaps during application of adhesive; FIG. 2 is an explanatory view showing a state in which the flaps constituting the bottom of the packaging box are pressed from inside and outside in order to adhere them to each other. 2...Packaging box, 2b...Outer flap ,
2c...Inner flap, 5...Stack device, 6...Packaging box supply device, 15...
・Claw, 16...Lower conveyor, 17...
...Claw, 18...Top conveyor 1
9... Upper mounting frame, 20, 30... Adsorption device, 21.32... Suction cup, 2
3... Stopper, 25... Push-up plate,
27... Pressing plate, 29... Folding plate,
33...Adhesive applicator, 37°38...
...Guide bar, 43.46...Crimping plate, 49
...Positioning plate, 50...Flap crimping device.

Claims (1)

[Scope of Claims] 1. A stacking device that supplies unfinished packaging boxes that have been folded and made flat and holds the packaging boxes in a predetermined position, and the flat packaging boxes held by the stacking device. a feeding device that intermittently supplies the flat packaging box, a transfer device that receives and transfers the flat packaging box sent by the feeding device, and a transportation path for the packaging box formed by the transfer device. first to fourth stations sequentially installed in the conveyance direction along the conveyance path, the first station includes a stopper for stopping the flat packaging box on the conveyance path, and a stopper for stopping the flat packaging box on the conveyance path; There are two suction devices that suck and separate the top and bottom surfaces of the packaging box to form a rectangular parallelepiped shape, and one of the suction devices that sucks either the top or bottom surface of the packaging box also slides in the transport direction of the packaging box. the second station, comprising: a suction device that is movably supported; and a pair of folding plates for folding in an inner flap for forming the bottom of the packaging box located on one side of the transport path; is equipped with an adhesive applicator for applying several types of adhesives having different hardening times to the surfaces of the inner flap and the unbent outer flap to be overlapped, and the third station is provided with an adhesive applicator for applying adhesives having different hardening times to the surfaces of the inner flap and the outer flap that are not yet bent. An outer flap forming device is provided for abutting and folding the outer flap, and a fourth station is provided with an outer flap forming device for folding the inner and outer flaps, which are folded and overlapped to form the bottom of the packaging box. , = A packaging box forming apparatus that is equipped with a flap crimping device that presses and crimps the packaging box from the inside, and that continuously forms the flat packaging box into a box shape to form a bottom part thereof. 2. A stacking device for supplying folded and flattened unfinished packaging boxes and holding the packaging boxes in a predetermined position, and intermittently supplying the flat packaging boxes held by the stacking device. A feeding device, a transfer device that receives the flat packaging box sent by the feeding device, and a transfer device that transfers the packaging box, and a transfer device that receives the flat packaging box sent by the feeding device, and a transfer device that receives the flat packaging box sent by the feeding device, and a transfer device that receives the flat packaging box sent by the feeding device. The first station includes a stopper that stops the flat packaging box on the conveyance path, and a stopper that sucks the top and bottom surfaces of the flat packaging box, respectively. Two suction devices are placed above and below the conveyance path to separate them and form them into a rectangular parallelepiped shape, and a pair of suction devices are placed on one side of the conveyance path to fold in the inner flaps for forming a packaging box. a box-forming device having a folding plate; and the second station is provided with an adhesive for applying several types of adhesives having different hardening times to the surfaces of the inner flap and the yet-unfolded outer flap that are to be overlapped. a coating device; the third station includes an outer flap forming device comprising two guide bars disposed above and below to contact the outer surface of the outer flap and bend the outer flap; The fourth station is equipped with a flap crimping device that presses and crimps the inner and outer flaps, which have been folded and overlapped to form the bottom of the packaging box, from the outside (lIlb) and the inside of the bottom of the packaging box; The upper suction device of the box forming device installed in the station and the upper guide bar of the outer flap forming device installed in the third station are attached to an upper mounting frame supported so as to be movable up and down. A packaging box forming device characterized by: