JP2565549Y2 - Carton vertical circulation conveyor - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to a paper container (carton) for filling a liquid such as a gable-top type or a flat-top type.
The present invention relates to an improvement of a carton vertical circulating conveyor in a liquid filling device for automatically filling liquid contents in a carton.

[0002]

2. Description of the Related Art The above-mentioned carton vertical circulating conveyor is installed in a liquid filling apparatus, and as shown in the front view of FIG.
Left and right endless chains 21a wound around left and right sprockets 20, 20, respectively, which are rotatably supported on an upper rotating shaft 20a that is driven and rotated, and left and right sprockets 20, 20, which are rotatably supported on a lower rotating shaft 20b. , A pair of endless chains 21b on the right side, which endlessly feed in the vertical direction.
An upper supporting portion 22 (a plate-shaped or combined plate-shaped member that also serves as an upper holding of a carton and a carton introduction guide) and a lower supporting portion 23 (a plate-shaped or combined plate-shaped member that also serves as a lower holding of a carton and a carton introducing guide). And a plurality of buckets 24 formed at equal intervals, so that a rectangular parallelepiped rectangular paper container A (carton) standing up in a sleeve shape can be fed into the bucket 24. .

The carton A is pushed into the bucket 24 in the horizontal or vertical direction from a horizontal conveyor 31 which pushes and transports the carton A in the horizontal direction or a direction slightly inclined higher in the transport direction than the horizontal by a pushing claw 32 or the like. After receiving, as shown in the side view of FIG. 6, the endless chain 21 is fed, and the carton A is vertically immersed and unloaded into the processing liquid tank 26 such as a sterilizing processing liquid tank or a cleaning processing liquid tank. Thus, the carton A is circulated and conveyed.

[0004]

The delivery of the carton from the horizontal conveyor 31 to the vertical circulation conveyor 25 is performed by receiving the center of the carton A conveyed from the horizontal conveyor 31 and the carton of the vertical circulation conveyor 25. If the centers of the buckets 24 (carton retainers) do not match each other, the delivered carton A collides with the carton inlet of the bucket 24,
The carton A may be damaged, and troubles may easily occur at the time of filling.

[0005] The endless chain 21 operates intermittently to move the bucket 24 attached to the chain 21.
When the carton A is received from the horizontal conveyor 31, the carton A is received while the transportation is temporarily stopped, and the position of the bucket 24 when receiving the carton A is the center of the bucket 24 with the line center of the horizontal conveyor 31. Must match.

However, in the conventional carton vertical circulating conveyor, the bucket 24, which should be in a horizontal posture toward the outer side of the round transfer line circle of the endless chain 21, has its own weight,
In the case where the center position becomes unstable due to the slant of the endless chain 21 and the bucket body is constituted by an upper guide (upper support portion) and a lower guide (lower support portion), Due to the structural defect, the bucket may be deformed, or the upper and lower support portions may be opened, and there is a concern that the carton A may be damaged in the delivery of the carton from the horizontal conveyor 31 or the delivery may not be performed smoothly.

The present invention is directed to a carton vertical circulating conveyor, in which the bucket is prevented from tilting downward toward the outside of the endless chain for the round transfer line, thereby stabilizing the center position of the bucket and thereby improving the horizontal conveyor. In order to prevent the carton from being damaged in the delivery of the carton, the delivery can be performed smoothly.

[0008]

Means for Solving the Problems A first invention of the present invention is as follows.
A carton vertical circulation system in which a plurality of carton holding buckets 4 composed of an upper support portion 2 and a lower support portion 3 are laid at equal intervals in parallel on a pair of endless chains 1 circulating and transporting in a vertically opposed manner. In the transport conveyor, each bucket 4 is placed horizontally in a gap 5 between a lower support 3 constituting one bucket 4 and an upper support 2 constituting the next bucket 4 in the vertical transport. A carton vertical circulating transport conveyor characterized in that spacers 6, 7 for holding are provided, and the spacers 6, 7 are respectively attached to the lower support portion 3 and the upper support portion 2 of the bucket 4. is there.

In a second aspect of the present invention, there is provided a pair of endless chains 1 which circulate and convey vertically opposite each other.
In a carton vertical circulating conveyer in which a plurality of cartons 4 for holding a carton constituted by an upper supporting portion 2 and a lower supporting portion 3 are installed at equal intervals in parallel, a lower supporting portion 3 constituting one bucket 4 is provided. And a gap 5 between the upper support 2 and the bucket 4 that follows the bucket 4.
A spacer 8 for holding the buckets 4 horizontally during vertical transport, the spacers 8 being attached to the endless chains 1 near the gaps 5 respectively. It is a vertical circulation conveyor.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
This will be described in detail below according to embodiments.

FIG. 1 is a partially enlarged side view of a carton vertical circulating conveyor according to an embodiment of the first invention.
A pair of left and right sprockets 10 and 10 fixedly supported on a driving and rotating upper support shaft 10a and a pair of left and right sprockets 10 and 10 freely supported and rotated by a lower support shaft 10b can be rotated and transferred. Of the chain joints 11 of the pair of left and right endless chains 1, two sets of two joints 11, 11 that are adjacent to each other in the rotation transfer direction are set as a set, and a plurality of sets of two joints are appropriately separated by the number of joints at equal intervals. Brackets 12 and 12 are integrally attached to 11 and 11 by screws 14, respectively. An intermediate sprocket can be appropriately provided between the upper support shaft 10a and the lower support shaft 10b.

A side support portion 13 having an appropriate length is integrally attached to each of the brackets 12 and 12 in parallel with the endless chain 1 near the chain 1 on the outer side of the transfer line. And each side support 13
Has a top support 2 and a bottom support 3 in the horizontal direction, and the side support 13, the top support 2 and the bottom support 3 constitute one bucket 4.

The upper support 2 is composed of an upper plate 2a and an upper hold plate 2b, and the lower support 3 is composed of a bottom plate 3a and a lower hold plate 3b.
And the side support portion 13, the upper support portion 2, and the lower support portion 3,
The structure of the side support portion 13, the upper support portion 2, and the lower support portion 3 may be an integral structure or a combination structure. And a structure in which one side of the square shape is partially open.

As described above, a plurality of buckets 4 attached at equal intervals to the endless chain 1 constituted by the side support portions 13, the upper support portions 2, and the lower support portions 3 are provided. , A rectangular tubular carton A is stored.

In each of a plurality of buckets attached at equal intervals, a lower supporting portion 3 of one bucket 4 and an upper supporting portion 2 of the bucket 4 below the lower supporting portion 3 are in a state where they are separated from each other. A small gap 5 is formed in the horizontal direction, and a spacer 6 is integrally attached to the lower support 3 of each bucket 4 so as to make up the gap 5, and each spacer is attached to the upper support 2 of the bucket 4. And the spacer 7 is integrally attached.

As a result, the separated state between the lower support portion 3 and the upper support portion 2 of each bucket 4 in the vertical transport direction (vertical descending direction and vertical ascending direction) is eliminated, and each of the lower support portions 3 and The upper support portion 2 is a spacer in which the spacers 6 and 7 are in opposing contact with each other at the entire surface or at partial locations such as both ends thereof to maintain a parallel relationship.

Although the structure of each of the spacers 6 and 7 is not particularly limited, it is preferable that the spacers 6 and 7 are made relatively light in both material and shape (made of aluminum or resin). The height of the protrusion from the upper support 2 is such that the width d of the gap can be interpolated.

FIG. 2 is a front view of the lower support portion 3 and the upper support portion 2 and the spacers 6 and 7 constituting the bucket in the above-described embodiment. The spacers are attached at equal intervals in a shape inclined at about 5 ° to 10 ° with respect to the direction.
a of the L-shaped plate 6a attached to the lower surface of the upper support portion 2.
It is constituted by an L-shaped plate 7a attached to the upper surface of the "a".

Next, the lower support part 3 and the upper support part 2 and the spacers 6 and 7 constituting the bucket in another embodiment of the first invention of the present invention are, for example, shown in FIGS.
It may be as shown in (c).

For example, as shown in the side view of FIG. 3A, resin small pieces (block-shaped tops) are respectively formed on the outer sides of the buckets at the tip ends of the lower support portion 3 and the upper support portion 2 constituting the bucket. 6c and 7c are attached with screws 6d and 7d to form spacers 6 and 7, respectively.

As shown in the front view of FIG. 3B, resin small pieces (block-shaped tops) are respectively formed on the outer sides of the buckets at the tip ends of the lower support portion 3 and the upper support portion 2 constituting the bucket. 6c, 7c are attached by screws 6c, 7c, and the small pieces 6c, 7c are attached to each other while being shifted from each other in the left-right direction.

FIG. 3C shows the spacers 6,7.
FIG. 4 is a detailed view showing a state in which small pieces 6c and 7c constituting the above are attached to the lower support portion 3 and the upper support portion 2.

Next, a carton vertical circulating conveyor according to a second invention of the present invention will be described in detail according to an embodiment. FIG. 4 is a partially enlarged side view of an embodiment of the second invention. A pair of left and right sprockets 10 and 10 fixedly supported on an upper support shaft 10a that is driven and rotated;
Two joints 11 of the pair of left and right endless chains 1 that can be wound around a pair of right and left sprockets 10 and 10 that are rotatably supported by the shaft 0b and that can be turned forward. Part 1
1 and 11 as one set, and a plurality of sets of two joint portions 11 and 1 separated from each other at equal intervals by an amount corresponding to the number of joints as appropriate.
1, a plurality of buckets 4 are attached in the same manner as in FIG. An intermediate sprocket can be appropriately provided between the upper support shaft 10a and the lower support shaft 10b.

In this way, the lower support portion 3 of one bucket 4 and the upper support portion 2 of the lower bucket 4 of each bucket attached to the endless chain 1 at a plurality of equal intervals are formed mutually. The joint portion 1 of the endless chain 1 between the buckets 4 so as to make up for the slight horizontal gap 5 in the separated state.
The spacers 8 are integrally attached to 1, 11 by screwing.

Thus, the separated state of the gaps 5 formed between the lower support portion 3 and the upper support portion 2 of each bucket 4 in the vertical transport direction (vertical downward direction and vertical upward direction) is eliminated. And the lower support 3 and the upper support 2 respectively.
Are arranged so as to face each other with one spacer 8 and maintain a parallel relationship. Although the shape of the spacer 8 is not particularly limited, it is desirable that the material and the shape are relatively light (for example, aluminum, resin, etc.).
It is thick enough to interpolate the width d of the gap.

[0026]

In the carton vertical circulating conveyor according to the present invention, the lower support part 3 constituting one bucket 4 and the upper support part 2 constituting the next bucket 4 of the bucket 4 are provided inside the gaps 5 respectively. For each lower support 3 and upper support 2,
Spacers 6 and 7 are provided for holding the lower support portions 3 horizontally when the buckets 4 are vertically fed, or the lower support portions 3 are provided inside the gaps 5 respectively. Since the spacer 8 for holding horizontally during the vertical transport is attached to and supported by the endless chain 1 in the vicinity of the gap 5, the vertical transfer of the endless chain 1 toward the outer circle of the endless chain 1 during the vertical transport of each bucket 4 is performed. Bucket 4 to be in horizontal position
However, it is possible to suppress the inclination of the bucket 4 to lower outside the rotating circle due to its own weight and the slackness of the endless chain 1.

[0027]

[Effect of the invention] The carton vertical circulation conveyor according to the invention can suppress the bucket body from leaning down toward the outside of the conveyor transfer line circle due to the self-weight of the bucket or the slackness of the endless chain. There is a practical value such that the center position of the bucket in the carton delivery can be further stabilized, and the adverse effects such as the damage of the carton caused by the collision of the carton delivered from the horizontal conveyor with the bucket can be reduced.

[Brief description of the drawings]

FIG. 1 is an enlarged side view of a main part of an embodiment of a carton vertical circulation conveyor according to the first invention.

FIG. 2 is an enlarged front view of a main part of an embodiment of the carton vertical circulation conveyor according to the first invention.

FIG. 3 (a) is a side view of a main portion of a bucket in another embodiment of the carton vertical circulation conveyor according to the first invention. (B) It is a bucket principal part front view in the carton vertical circulation conveyance conveyor of another Example of the 1st invention. (C) It is a partial fragmentary front view of a bucket in another embodiment of the carton vertical circulation conveyor of the first invention.

FIG. 4 is an enlarged side view of a main part of an embodiment of the carton vertical circulating conveyor according to the second invention.

FIG. 5 is a schematic front view of a conventional carton vertical circulating conveyor.

FIG. 6 is a schematic side view of a conventional carton vertical circulating conveyor.

[Explanation of symbols]

A: Carton (paper container) d: Width of gap 1: Endless chain 2: Upper support 2a: Upper plate 2b: Upper hold plate 3: Lower support 3a: Bottom plate 3b: Lower hold plate 4
… Bucket 5… gap 6… spacer 7… spacer 8… spacer 10… sprocket 10 a… upper support shaft 10 b… lower support shaft 11… shore 12… bracket 13…
Side support 14 Mounting screw 20 Sprocket 20a Upper support 20b Lower support 21 Endless chain 22 Upper support
23 Lower support portion 24 Bucket 25 Carton vertical circulating conveyor 26 26 Treatment liquid tank 31 Horizontal conveyor 32 Push nail

Claims (2)

(57) [Scope of request for utility model registration] 1. A plurality of cartons 4 for holding cartons each composed of an upper supporting portion 2 and a lower supporting portion 3 are arranged at equal intervals in a pair of endless chains 1 which circulate and convey vertically opposite to each other. In the carton vertical circulating conveyor, the buckets 4 are vertically inserted into the gaps 5 between the lower support 3 constituting one bucket 4 and the upper support 2 constituting the next bucket 4 of the bucket 4. Spacers 6 and 7 are provided to keep the container horizontal during transportation.
A carton vertical circulating transport conveyor attached to each of the lower support portion 3 and the upper support portion 2. 2. A plurality of cartons 4 for holding cartons, each of which is composed of an upper supporting portion 2 and a lower supporting portion 3, are arranged in parallel at equal intervals on a pair of endless chains 1 circulating and transporting vertically opposite to each other. In the carton vertical circulating conveyor, the buckets 4 are vertically inserted into the gaps 5 between the lower support 3 constituting one bucket 4 and the upper support 2 constituting the next bucket 4 of the bucket 4. A carton vertical circulating conveyor according to claim 1, further comprising a spacer (8) for holding the carriage horizontally during transportation, and the spacer (8) is attached to the endless chain (1) near each of the gaps (5).