JPH0333457Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an improvement in a small box take-out and molding device for placing material taken out from a magazine on a carton conveyor and forming it.

[Conventional technology and its problems]

Conventional small box take-out and molding devices store a large number of folded materials in a magazine, and suck the lowest material into a suction cup on a wheel attached to a rotating shaft.
The pieces are taken out one by one, placed on the starting end of a carton conveyor, and a small box is formed by the rise of the spacer pieces. By the way, the material B of the small box is folded in the state shown in Fig. 5, and since the conventional device suctions the bottom surface of the material to the suction cup, the material B is folded upside down at a point other than the fold line as shown by the chain line in Fig. 4. There is a tendency for the material B' to be bent in an L-shape, and when the material B' bent in such an inverted shape is placed on a carton conveyor, the entire material will have an additional layer of bending, and will be bent in an L-shape, resulting in poor molding.

An object of the present invention is to provide a small box take-out molding device that solves the above-mentioned problems.

[Means for solving problems]

This invention places a rotating body facing a magazine that stores a large number of folded materials, attaches suction cups to a plurality of planetary shafts supported on the periphery of the rotating body, and uses the suction cups to take out the materials from the magazine and transfer them to a carton conveyor. In this device, a carton is placed on the starting end of a carton conveyor and formed into a small box by the rise of the spacing piece of a carton conveyor.A slide is fitted into a bush attached to each planetary shaft to hold the planetary shaft freely forward and backward in the perpendicular direction. The trochanter of the slide is engaged with the attached cam to act as a source of movement for moving the slide forward and backward.Insert a molded bar into the slide, line up the slightly bent tip to the side of the suction cup, and place the tip of the molded bar into the suction cup. Set it so that it hits the surface next to the surface of the material that has been adsorbed, or the insertion piece on the opposite side.

〔Example〕

In the first embodiment shown in FIGS. 1 to 3, 1 is a disk-shaped wheel, a boss is attached to a horizontal rotating shaft 2, rotated at high speed in the direction of arrow A, and six through holes 3 are formed on the periphery. A shaft cylinder 4 is protruded from the back side of every other three through holes, and a hollow planetary shaft 5 is supported on this shaft cylinder and protruded long toward the front of the wheel 1, and each planetary shaft 5 is connected to a chain. It is rotated by a ring and a chain (not shown). Reference numeral 6 denotes a pneumatic suction cup, which is attached to the tip of each planetary shaft 5 through a head 7, and is connected to a negative pressure source (none of which is shown) through a rotary valve on the rotating shaft from a rotary joint provided at the rear end of the planetary shaft. connect and draw air in at the appropriate time, or cut off air intake. Reference numeral 8 denotes a magazine disposed diagonally opposite the outer peripheral surface of the turning locus of the suction cup 6. A large number of folded materials B are stacked and stored in this magazine 8, and the upper left corner of the wheel 1 is located at the upper left corner of the wheel 1 with respect to the outlet. Place the wheel so that the

10 is a carton conveyor with a large number of spacing pieces 11
Attach the pulley 12 at a certain pitch and stand upright.
and move it in the direction of arrow D. When the carton conveyor 10 turns around the pulley 12 (referred to as the starting end)
The spacer piece 11' is in an inclined position and the spacer piece 1 in the front position
1, and when the spacer piece 11' finishes going around the pulley 12, it assumes an upright position. Here, the carton conveyor 10 is arranged so that its starting end faces directly below the rotating shaft 2 of the wheel and faces the outer peripheral surface of the orbit of the suction cup 6, and the spacers 11, 11
Set the interval to the width of the small box C to be molded.

The above configuration is almost the same as the conventional device, and the wheel 1 rotates at high speed in the direction of arrow A, and the suction cup 6
At the time when the suction cup 6 approaches the outlet of the magazine 8, air is sucked to adsorb the lowest material, and by the rotation of the wheel 1, the material is taken out from the magazine and carried downward. The material B1 is placed between the upwardly inclined spacer piece 11' and the upright spacer piece 11 and placed on the starting end of the carton conveyor 10, and the carton conveyor By rising, the material B1 is pushed, and a small box C is formed by the front and rear spacing pieces 11, 11' and conveyed to the right.

In this embodiment, a rectangular bushing 13 is attached to a part of the planetary shaft 5 near the wheel, a slide 14 with a square hole 15 cut out is placed over this bushing, and grooves cut on both sides of the bushing are inserted into grooves on both sides of the square hole 15. The edges are fitted to hold the slide 14 freely in the direction perpendicular to the planetary shaft 5. 16 is a disc-shaped cam,
A planetary shaft 5 is inserted into the center of each cam 16, and a slightly eccentric cam groove 17 is provided on the side surface of the cam 16, and the cam groove 17 is provided with a slightly eccentric cam groove 17. 18, and the planetary shaft 5
As the wheel rotates, the trochanter 18 rolls within the cam groove 17, thereby moving the slide 14 forward and backward from the center of the wheel by the amount of eccentricity of the cam groove. 2
0 is a molded bar, which is inserted into the slide 14 and the suction cup 6
When the material B sucked at is pulled out from the magazine and moved to a conveyor position below the magazine position by rotation of the wheel 1,
The molded bar 20 revolves around the rotation of the wheel and rotates around the planetary shaft, and has an eccentric cam groove 17 of the cam provided on the planetary shaft and a trochanter provided on the slide 14 and fitted in the cam groove. 18, the forming bar 20 moves back and forth, that is, the tip of the forming bar is at the same position as the suction surface of the suction cup in the magazine position, and when it is moved downward by the rotation of the wheel, it is caused to protrude from the suction surface by the eccentric cam. become. This relationship is shown in FIG. Therefore, when the material B moves from the magazine position to the conveyor position, it is sequentially bent from the folds provided between the side pieces of the material according to the amount of eccentricity of the cam, and each side piece is raised to form a flat rectangular tube shape. This is what is said to be.

It is arranged so that it is parallel to the planetary shaft 5, and is bent in front of the suction cup 6 so that the tip 21 stands up in the same direction as the suction surface of the suction cup.
are lined up on the sides of the molding bar so that they are aligned on the same plane, and the tip 21 of the molding bar is made to protrude slightly beyond the suction cup 6 by the movement of the slide 14 using the cam 16 and the trochanter 18 as sources of motion.
As shown in FIG. 5, this tip 21 is the material B0 that is suctioned by the suction cup, and the suction surface E, which is one side piece of the small box, is adjacent to the suction surface E, which is the other side piece of the small box, which is connected through the fold. Set it so that it hits the surface F of.

The first embodiment of the present invention has the above-mentioned configuration, and the material B from the magazine 8 is moved from the lowest material B by suction by the suction cup 6.
The material is taken out and conveyed downward by the rotation of the wheel 1. On the way, the rotation of the planetary shaft 5 causes the slide 14 to advance and retreat using the cam 16 and the trochanter 18 as sources of motion, and the forward movement of the slide moves the tip 2 of the forming bar.
1 is the material B sucked by the suction cup 6 as shown in FIG.
It hits the surface F next to the suction surface E of 0. As a result, the lower surface of the material B0 is suctioned by the suction cup, and the suction surface E receives a pulling force from the suction cup, and the forming bar tip 21 applies an upward force pushing it upward through the crease to the adjacent surface F. The material B0 is bent from the crease between the suction surface E and the adjacent surface F, and spreads out into a flat diamond shape.Then, this material is placed on the starting end of the carton conveyor 10, and the conveyor is driven. When the inclined spacing piece 11' stands up vertically, the adjacent surface is further pushed by this spacing piece, so the suction surface and the adjacent surface are bent at 90 degrees at the crease, ensuring that the corner is A cylindrical small box C is formed.

In the second embodiment shown in FIG. 5, the tip 21 of the forming bar 20 is set to abut against the folding piece G on the opposite side of the suction surface E of the material B0 suctioned by the suction cup 6, and the other configurations are as follows. This is the same as the first embodiment. In this second embodiment as well, the material B0 is subjected to a pulling force from the suction cup 6 on the suction surface E and a pushing force from the tip 21 of the forming bar to the folding piece G, so that the material B0 is folded from the crease between the side pieces. It becomes a flat diamond shape, and a rectangular cylindrical small box C is reliably formed by the carton conveyor in the same way.

The above describes two embodiments of the present invention, but the present invention is not limited to these embodiments, and the design can be changed within the gist of the invention. For example, the magazine 8 may be placed directly above or beside the wheel 1. Alternatively, the number of molding bars 20 may be two. Further, instead of the disc-shaped wheel 1, an arm-shaped rotating body may support the planetary shaft, and the number of planetary shafts and suction cups may be increased or decreased.

[Effect of idea]

In this invention, a suction cup is attached to a planetary shaft supported on a rotating body, and a molded bar is mounted so that it can move forward and backward. It is configured so that it abuts against the surface that becomes the side piece, and the tip of the molding bar applies downward suction force to the material attracted by the suction cup, and upward force from the tip of the molding bar to the adjacent side surface through the crease. Therefore, the material taken out from the magazine is folded along the fold line and spread out into a diamond shape, and in this state it can be placed on the starting end of the carton conveyor.Therefore, there are no mistakes in forming small boxes on the carton conveyor. This has the effect of greatly improving the performance of the small box take-out molding device.

[Brief explanation of the drawing]

The drawings show two embodiments of the present invention: Fig. 1 is a front view of the first embodiment, Fig. 2 is a longitudinal cross-sectional view of the first embodiment, and Fig. 3 shows the material and material of the first embodiment. FIG. 4 is a plan view of the forming bar, FIG. 4 is a plan view of the material of the second embodiment and the forming bar, FIG. 5 is a side view of the conventional material and the suction cup, and FIG. 6 is an explanatory diagram showing the bending process of the material. be. Note that 1 is a rotating body (wheel), 5 is a planetary shaft, and 6 is a rotating body (wheel).
is the suction cup, 8 is the magazine, B is the material, C is the small box, 1
0 is a carton conveyor, 11 is a spacing piece, 13 is a bush, 14 is a slide, 16 is a cam, 18 is a trochanter, 20 is a forming bar, and 21 is its tip.

Claims (1)

[Scope of utility model registration request] A rotating body is placed facing a magazine that stores a large number of folded materials, and suction cups are attached to multiple planetary shafts supported on the periphery of the rotating body.The suction cups take out the materials from the magazine and transport them to the starting end of the carton conveyor. In this device, a carton conveyor is placed on a carton conveyor, and a small box is formed by the rise of the spacing pieces of the carton conveyor.A slide is fitted to a bush attached to each planetary shaft, and is held freely in a direction perpendicular to the planetary shaft, and is attached to a rotating body. The trochanter of the slide is engaged with the cam to act as a source of motion for moving the slide forward and backward.A molded bar is inserted into the slide and its bent tip is lined up on the side of the suction cup, so that the tip of the molded bar is sucked by the suction cup. A device for taking out and forming a small box, characterized in that the device is configured to abut against a folded piece on the side next to or on the opposite side of the material surface.