JPS60268Y2 - automatic box making machine - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an automatic assembly machine for a Bliss type cardboard box.

Conventionally, automatic box making for Bliss-type boxes loads body blanks in a stacked state into a hopper on the tail side of a mass conveyance path.

In addition, end panels are vertically arranged in the hoppers on both sides of the conveyance path across the head.

Then, the lowermost body blank is sent out by the kicker, and an adhesive is applied by spraying or coating to a predetermined position of the body blank at the time of sending out.

When the body blank reaches the head of the conveyance path and stops, the mandrel immediately descends and at the same time the waiting end panel is supplied and the box is assembled. The twin hoppers on the end panel are distributed at three points.

For this reason, if body blanks and side panels for standby are piled up in one place, there is a drawback that they must be manually carried to the hopper each time.

Further, if the mortise blanks and side panels were stacked near each hopper in order to solve the above-mentioned drawback, there was a drawback that a large space was required.

Furthermore, since the hoppers of the guide panel extend in a wing shape on both sides of the conveyor head, the mold of the box making machine is flat.
Becomes letter-shaped.

This creates unnecessary space around the box making machine, which also has the disadvantage of requiring a large space.

This invention is based on a flat blank homper and a pair of lees.
Gather the poppers of the side panel in one place and
The purpose is to eliminate shortcomings.

This idea involves installing side panel loading paths on both sides of the body blank loading path, lining up each hopper in one place, and raising both side panels that have reached the head of the loading path to feed them to the mandrel. To provide an automatic assembly machine that does the following.

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

In the figure, A is a body blank, and as shown in Figure 1, this body flank A is a bottom wall 1 made of cardboard such as a corrugated hole, and is continuous from both side edges of this bottom wall 1 in the upright direction. A bendable side wall 2゜2', lid walls 3, 3' connected to both side walls 2, 2', and the bottom wall 1 and both side walls 2, 2'.
It is constituted by fastening pieces 4 provided on both end edges of the holder so as to be bendable inward, respectively.

B is a side panel made of cardboard or the like, and this side panel B has a lower edge and a bottom wall 1, a bracket on both side edges and both side walls 2,
2' are in contact with each other.

In the illustrated case, a folding wall 5 that is folded inward is provided at the upper edge of the side panel B, but the folding wall 5 may not be provided in some cases.

C is a first conveyance path that supplies the stacked body blanks A one by one from the lowest position, and this first conveyance path C receives both sides of the lowest body blank A as shown in Fig. 2. Two rails 6, a chain conveyor 7 arranged in parallel so that the outer side of the rail 6 and the carrier side are lower than the upper surface of the rail 6, and a chain conveyor 7 that engages the edge of the lowest body blank A on the opposite side in the unloading direction. It consists of a latch claw 8 provided to stop the body blank A, a belt conveyor 9 provided so that the body blank A is transferred to the front of the rail 6, and a gate 10 provided so that only the lowest body blank A passes through. .

Further, directly above the heald conveyor 9, a coating device is provided for applying adhesive to each fastening piece 4 of the 1-day flank A passing through.

This coating device includes a melt storage tank 11 for adhesive such as hot melt, and a solenoid valve 1 provided directly above the passage line of the fastening piece 4.
It consists of a nozzle 13 with 2 attachments, a hose 14 that connects the storage tank 11 and the solenoid valve 12, and an adhesive pressure pump (not shown) ε built into the storage tank 11. When the switch 15 is turned on, the solenoid valve 12 is opened, the hY pumps are operated, and the adhesive is sprayed from the nozzle 13.

Further, in front of the belt conveyor 9, there are two rails 17 that support the lower surface of the fastening piece 4 of the flat blank A that is transferred while being guided by the ruler plate 16;
Stopper 18 that stops the screw blank A at the top
and is provided.

Reference numeral E denotes a second conveyance path parallel to both sides of the first conveyance path C so as to supply the laminated side panels R one by one from the lowest layer. As shown in , two rails 19 that support both sides of the lowest side panel B, a chain conveyor 20 installed in parallel so that the carrier side on the outside of these rails 19 is lower than the upper surface of the rail 19, and this chain. A locking pawl 21 provided on the conveyor 20 to engage with the edge of the lowest side panel B on the opposite side in the carrying-out direction, a roller conveyor 22 provided so that the side panel B is transferred to the front of the rail 19, A gate 23 is provided so that only the side panel B can pass through.

Further, as shown in the figure, the belt conveyor 24 is provided in front of the rail 19 so that the carrier side is higher than the rail 19, and the remaining amount of the side panel B on the rail 19 is lower than the carrier side of the belt conveyor 24. A detector 25 such as a phototube detects this, and the shilling 26
If the belt conveyor 24 is run at the same time as the stopper 27 is lowered due to the contraction of the stopper 27, the standby laminated side panel B on the belt conveyor 24 can be automatically stacked on the side panel B on the rail 19. I'll come.

Generally, a stopper 64 is provided on the front side of the roller conveyor 22 to stop the idle panel B at a predetermined position.

F is a molding device that bends the body blank A on the rail 17 into a hook shape. Then, the mandrel plate 29 when the both side walls 2, 2' are raised upright as the mandrel 28 descends directly below the both side edges of the bottom wall 1, and the body blank A is formed by the mandrels 28 on both sides of the mandrel plate 29. The guide plate 30 bends each fastening piece 4 inward when it is lowered.

As shown in FIG. 2, the mandrel 28 is raised and lowered by the contraction and expansion of the cylinder 31, but it may also be raised and lowered by a crank mechanism or the like.

Furthermore, a fixed plate 32 is provided on the outside of each guide plate 30.
The guide plate 30 is supported on the fixed plate 32 via the tube 33, and the mandrel 2
Since air is press-fitted into the tube 33 after the descent of the guide plate 3 to the mandrel 28,
The fixing piece 4 can be pressed against the side panel B while pressing the fixing piece 4.

G is the roller conveyor 2 facing both end faces of the mandrel 28.
19, this raising device G includes a vertical cylinder 34 supported on the outer surface of the fixed plate 32, and this cylinder 34.
A rack 35 that moves up and down by the expansion and contraction of At least two arms 38 are positioned slightly lower than the conveying surface of the roller and parallel to the rollers, and these arms 38 support the lower edge of the side panel B when the arms 38 are erected, and fall down and rotate when the mandrel 28 is lowered. It is constituted by a locking piece 39.

The locking piece 39 is hinged via a pin 40 and rotated back by a spring 41.

At the top of the surface of the mandrel 28 that comes into contact with the side panel B, there is a projection that engages with the upper edge of the site panel B when the lower edge of the mandrel 28 and the lower edges of the panels 1 to B are aligned. 42 are provided.

In addition, as shown in Fig. 2, the acid screw 4 rotates in a fixed position.
By making the mandrel plate 29 movable using the external screw 44 screwed into the acid screw 43, the interval between the mandrels 29 can be adjusted according to the interval between the side walls 2 and 2' of the body blank A. I'll come.

In the figure, 45 is a stopper provided on the mandrel plate 29 to prevent the molding box from rising.
5 is inserted into the elongated hole 46 of the guide plate 30 when the side walls 2, 2' having the bottom wall 1 and the lid walls 3, 3' are lowered while rotating about the pin 47, and the lid walls 3, 3' When the upper edge passes, the spring 48 rotates the mandrel 28 back up, so that the stopper 45 and the lid wall 3, This can be prevented by engagement with 3'.

49 is a cylindrical body provided on the fixed plate 32, 50 is a shaft member whose tip is fixed to the guide plate 30 by fitting into the cylindrical body 49, and 51 is a shaft member provided on the guide plate 3 toward the fixed plate 32.
0, 52 is a belt conveyor for carrying out the molded box, 53 is a limit switch that detects the body blank A stopped by the stopper 18,
When the limit switch 53 is turned on, the raising device G is activated.

54 is a side alignment plate of the body blank A, 55 is a traveling guide plate of the side panel B, 56 is a side edge alignment plate of the side panel B, 57 is a roll provided between the chain conveyor 7 and the belt conveyor 9, and 58 is a roll provided between the chain conveyor 7 and the belt conveyor 9. A drive device for driving the chain conveyor 7, rolls 57, and belt conveyor 9; 59 is a guide roller provided next to the belt conveyor 24; 60 is a drive device for the chain conveyor 20 and roller conveyor 22; 61 is a drive device on the tail of the belt conveyor 24. This stopper 61 waits for the laminated side panel B supplied to the guide plate 55. This stopper 61 is adapted to be recessed into a recess 62 of the guide plate 55 by a drive device 63 as the stopper 61 is operated.

The automatic box-making board according to this invention has the above-mentioned structure, and its operation will be explained next. and side panel B.

At this time, the edge of the cover wall 3 located in the direction of entry of the body blank A is brought into contact with the gate 10, and the edge of the side panel B located in the direction of entry is brought into contact with the gate 23, respectively.

In addition, stacked side panels B are supplied to the head and tail portions of the belt conveyor 24 so that the edges in the approach direction contact the stoppers 24 and 61.

When the remaining amount of body blanks A on the chain conveyor 7 decreases, each time the body blanks are stacked on the hole and fed.

J: Chain conveyor 20 - When the remaining amount of the side panel B becomes low, it is detected by the detector 25 and the stopper 27 is lowered by the contraction action of the cylinder 26, and at the same time, the stopper 27 is caused to fit into the recess 62 by the drive device 63. Since the stopper 61 is rotated to run the conveyor 24 to the bell 1, the side panel B of the spatula 1 to part of the belt conveyor 24 is supplied onto the site panel I3 of the chain conveyor 20, and the head part of the bell 1 to the conveyor 24 is supplied. After reaching the point, raise the ID panel B.
Stop to wait for -t1-.

The tail section of the heald conveyor 24 is loaded with 1i-4F (dopanels B) each time.

When the chain conveyor 7 runs intermittently, the latch claw 8 engages with the edge of the cover wall 3 on the opposite side of the entrance direction of the lowest tenon blank A, so the lowest tenon blank A is fed out and transferred to the heald conveyor 9. The front molding device F
A flat blank A is sent to the machine.

At this time, the switch 14 is turned on by the passing bot 2 blank A, and the necking agent a is applied from the nozzle 13 to each fastening piece 4.

Also, since the edge of the lowest site panel B on the side opposite to the entrance direction is hooked to the hook 21 of the chain conveyor 20 that runs intermittently, the side panel B is fed from the chain conveyor 20 onto the roller conveyor 22. It will be done.

The body blank A fed by the bell 1 to the conveyor 9 reaches directly below the mandrel 28 while being guided by the rail 17 that supports the fastening piece 4, and is then stopped by the stop 1 to the collar 18.

At this time, the switch 53 is turned on to cause the cylinder 34 to extend, and the arm 38 is rotated in a direction via the pinion 36 that engages with the rack 35.

For this reason, the side panels B on the roller conveyor 22 are transferred to the arm 38 that is recessed between the roller conveyors 22, and the side panels B raised on both end surfaces of the mandrel 28, which is not rising, are overlapped. .

At this time, as shown in FIG. 20, the lower edge of the side panel R is supported by the locking piece 38 of the arm 38 standing upright, so that the site panel B is prevented from falling.

After that, the mandrel 2 is
8 is lowered, so 1. Mann I. Rel 2 on its way down above
When the bottom surface of 8 and the bottom wall 1 abut, the bottom wall 1 is pushed down (as shown in FIG. 4).

Therefore, while the mandrel 28 continues to descend,
First, each fastening piece 4 is bent upward by the guide plate 30, and then both side walls 2, 2' are bent upward by the mandrel plate 29.

Also, as the mandrel 28 descends, the protrusion 42 is hooked to the upper edge of the side panel B, and the mandrel 1/2 is attached to the upper edge of the side panel B.
8, the side panel B is lowered.

At this time, since the locking piece 39 is rotated in the falling direction (as shown in FIG. 11) against the spring 41, the arm 3
The support of side panel B for 8 is released.

Thus, each fastening piece 4 is made to face the outer lower edge and both side edges of the site panel B.

After the mandrel 28 has finished descending, air is press-fitted into the dimple 33, so the guide plate 30, which is pushed toward the mandrel 28, is used to push the fixing piece 4 onto the side panel B and adhere it. The fixing piece 4 is attached via agent a, and the box H is assembled.

Thereafter, after releasing the air from being press-fitted into the tube 33, the mandrel 28 is raised and returned to its original position by the contraction action of the cylinder 31.

In addition, even if the box H tries to pull up when the mandrel 28 rises, it sinks in when passing the side panel B, and
The upper edge of the side panel B engages with the stopper 45, which returns to its original position by the spring 48 so as to protrude after passing, thereby blocking the stopper 45.

By repeating the above steps, assemble the boxes one by one,
The box H that has fallen from the mandrel 28 is carried out by a belt conveyor 52.

As described above, in the automatic assembly machine according to the invention, the second side panel supply conveyance path is installed in parallel on both sides of the body blank supply conveyance path in the automatic assembly machine, so that the body There is one replenishment loading point for blanks and side panels.

Therefore, there is no need to carry out replenishment and loading at three dispersed locations as in the past.

Furthermore, since the standby blanks and side panels can be stacked in one place, a large area is not required and replenishment can be carried out with less labor.

Furthermore, since the second conveyance path is arranged in parallel with the first conveyance path, it is possible to reduce the size, unlike the conventional case where the second conveyance path extends in the shape of a wing.

In addition, the arm of the raising device can be lowered lower than the rollers by using the space between the rollers of the roller conveyor.
The transfer of the side panel is ensured, and the lower edge of the side panel is supported by the locking piece when the arm is raised.
The side panel above does not fall off.

Furthermore, when the side panel is lowered together with the lowering of the mandrel, there is no problem in lowering the side panel since the locking piece is rotated in the falling direction.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the cylinder making machine according to this invention, and Fig. 2 is a plan view of the cylinder making machine according to this invention.
3 is a vertical side view showing the conveyance path and the molding device; FIG. 3 is a vertical side view showing the second conveyance path; FIG. 4 is a vertical rear view of the tail portion of the second conveyance path; FIG. 5 is a plan view of the same; Fig. 6 is an enlarged vertical front view, not showing the transfer portion of the second conveyance path, Fig. 7 is a longitudinal side view of the same as above, Figs. 10 and 11 are enlarged longitudinal front views showing the locking piece of the raising device, FIG. 12 is a perspective view showing the driving of the first conveyance path, and FIG. 13 is a perspective view showing the driving of the second conveyance path. , FIG. 14 is a plan view of the body blank and side panel, FIGS. 15 to 18 are perspective views showing the same assembly situation, and FIGS. 19 to 23 are longitudinal sectional front views showing the process of the molding device. , FIG. 24 is a longitudinal sectional side view of the same. A: Body blank, B: Side panel, C: First conveyance path, D: Coating device, E: No. 2 conveyance path, F...molding device, H...box, a...adhesive, 1...bottom wall, 2, 2'... ...side wall,
3゜3'...Lid wall, 4...Fixing piece, 5
...Folding wall, 6...Rail, 7...
...Chain conveyor, 8...Latching claw, 9.
...Belt conveyor, 10...Kate,
11...Storage tank, 12...Solenoid valve, 13
...Nozzle, 14...Switch, 15
...Hose, 16...Ruler plate, 17.
...Rule, 18... Stopper, 19.
...Rail, 20...Chain conveyor,
21...Latching claw, 22...Roller conveyor, 23...Gate, 24...Belt conveyor, 25...Detector, 26...
・Cylinder, 27... Stopper, 28...
...Mandrel, 29...Mandrel plate, 30...Guide plate, 31...
Schilling, 32... Fixed plate, 33...
...Tube, 34...Shilling, 35...
...Rack, 36...Pinion, 37...
...Times tf1M, 38...Arm, 39.
... Locking piece, 40 ... Bin, 41 ...
...Spring, 42...Protrusion, 43...
Female thread, 44...Male thread, 45...Stopper, 46...Elongated hole, 47...Bin, 48...Bun, 49...Cylindrical body, 5
0...Axis, 51...Spring, 52...
... Belt conveyor, 53 ... Switch, 5
4...Alignment board, 55...Kite board, 5
6...Alignment board, 57...Tara, 58.
... Drive device, 59 ... Guide roller,
60... Drive device, 61... Stopper, 62... Concavity, 63... Drive device,
64... Stopper

Claims (1)

[Scope of utility model registration request] While feeding out the laminated body blank intermittently from the lowest position, adhesive is applied to the fastening pieces located on both sides of the body blank in the running direction, and when the body blank stops on the rail that supports the fastening pieces, , wait directly above the bottom wall of the body blank, and while lowering the mandrel with side panels supplied on both end faces, each fastening piece is bent upward by the guide plate, and then the mandrel plate is used to bend both sides of the body blank. In the automatic assembly machine that bends the wall upward and attaches the fastening pieces to the side panel,
A second conveyance path is installed in parallel on both sides of the first conveyance path for sending in the blanks, and a second conveyance path is provided to intermittently feed out the stacked side panels from the lowest position. When the mandrel is rotated in the falling direction, it becomes lower than the rollers of the a-ra conveyor, and when it is rotated in the upright direction so as to sandwich both end faces of the mandrel, the side panel on the roller conveyor is placed on the arm. A raising device is provided, and an arm of the raising device is provided with a locking piece for supporting the lower edge of the side panel that comes off from the lower edge of the side panel that is lowered together with the lowering of the mandrel. Automatic assembly machine.