JP3470176B2 - Carton guide device in filling machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carton guide device in a carton filling machine for milk or soft drinks.

[0002]

2. Description of the Related Art Conventionally, milk has been packed in a paper package by forming a carton formed by bending a single blank.
A means to transfer to a position just below the filling nozzle by a conveyor chain, raise the carton close to the filling nozzle in order to prevent foaming and liquid splash of the filling liquid, and lower the carton itself as the liquid level in the carton rises. Is taken. For that purpose, a carton lift guide device is used for moving up and down the carton that has reached a position directly below the filling nozzle. Then, the carton filled with the contents and lowered is again transported by the conveyor belt.

By the way, the conveyor chain that conveys the carton is not in a completely aseptic state due to, for example, the filling material and the cleaning water. The lift guide is also contaminated by the transfer of the carton whose outer surface is contaminated by such a conveyor chain, and as a result, contaminated water or the like may enter the carton rising by the lift guide, which is a cause of contamination of the carton contents. .

Further, in this lift guide, it is necessary to match the center position of the conveyor chain with the center position of the guide so that the carton can be prevented from tilting and falling down during operation so that the carton can be smoothly moved up and down. However, due to the elongation of the conveyor chain, the difference in the shape of the carton top, and the difference in the hardness of the carton paper,
It was very difficult to adjust the center position for accurately moving the carton transferred to the carton lift onto the lift.

[0005]

Therefore, the present invention has been made in view of the drawbacks of the lift guide in the conventional filling machine.
The purpose is to prevent the contamination of carton contents and to develop a carton guide device that is easy to install in the machine.

[0006]

SUMMARY OF THE INVENTION The present invention is directed to an elevating and lowering table which faces a filling nozzle for filling a liquid, a paper carton which is transferred to an elevating and lowering table directly below the filling nozzle, and an interlocking lower table. In a carton guide device including a holding guide configured to be movable up and down, the holding guide includes a pair of parallel supporting rods having a facing interval of about the inner width of the opening of the carton top, and a supporting rod at the tip of the supporting rod. While providing a sloped surface facing the inside facing the opposite, and introduced into the opening end of the carton top that opens the support rod in a rectangular shape by the movement of the holding guide with respect to the carton placed on the lifting platform, While introducing the tip, the inclined surface and the supporting rod continuous to it gradually contact with the inside of the opening end to correct the error of the carton mounting position on the elevating and lowering table in the opposing direction of the pair of supporting rods, and also the carton top. Holding the opening shape. Further, the holding guide has a ladder shape.

[0007]

The holding guide moves relative to the carton on the elevating and placing table, and the tip of the holding guide is inserted into the opening end of the carton top. After that, the holding guide and the elevating and lowering table are integrally raised to introduce the filling nozzle into the carton without contacting the holding guide. Then, as the liquid level in the carton rises due to the filling of the contents, the holding guide and the elevating and lowering table descend together, but during this time, the carton transferred to the elevating and lowering table becomes the machinery outside the carton except the bottom. There is no contact.

That is, the carton on the top of the holding guide enters the inside of the carton top opening to hold the top opening shape and holds the carton on the mounting table from the inside of the top position of the carton. It acts as a member for preventing and preventing contact with the filling nozzle.

[0009]

1 is a front view of a holding guide in a carton guide device of the present invention, and FIG. 2 is a side view thereof. In the figure, reference numeral 1 denotes a holding guide, which is composed of a pair of left and right supporting rods 2 having a ladder-like support body, and the opposing distance between them is set to about the width inside the opening end of the carton top 3. The tip is formed as an inclined surface 4 facing the inside. Other,
Reference numeral 5 indicates a connecting rod.

Although not shown in the figure, the holding guide 1 itself is interlocked with a conventionally known lifting / lowering table, and the carton on the table moves relative to the holding guide 1 so that the opening end of the carton top 3 thereof. After the tip of the holding guide 1 has fully penetrated into the inside, it is configured to rise together with the raising of the table, and is configured to perform a reverse operation to the raising operation when the mounting table is lowered.

Therefore, the carton conveyed by the conveyor chain to the position just below the filling nozzle makes the holding guide 1 enter the inside of the opened carton top and rises toward the filling nozzle in that state to hold the nozzle. Insert into the carton through the space between the guides 1.
Then, as with the conventional means, the holding guide 1 rises as the liquid level in the carton contents rises with the filling of the contents from the nozzle.
Further, the mounting table continues to descend, and after the filling is completed, the carton descends to the initial rising position together with the holding guide 1 following the subsequent descending of the mounting table. Therefore, the outer side of the carton does not come into contact with the mechanical device members except the bottom portion during the raising and lowering of the carton (during the filling operation).

[0012]

As described above, according to the construction of the carton guide device of the present invention, there is no contact between the carton placed on the elevating and lowering table, such as the outer wall and the cut surface of the carton top, except for the bottom thereof. Therefore, it is possible to prevent the related contamination of the carton contents due to the contamination of these members. Further, since the carton on the mounting table is supported by the inside of the opening top during this time, lateral shake of the carton at the time of lifting and lowering can be well prevented, and lateral contact of the carton and contact with the filling nozzle can be prevented.

Further, since the tip of the holding guide is inclined inwardly oppositely, it is easy to introduce the holding guide into the opening end of the carton top, and at the same time, some error in the carton mounting position is corrected during the introduction of the tip. Since the holding guide can be inserted into the carton, the carton height position need not be corrected, and as a result, the machine can be installed and adjusted easily.

Moreover, since the device of the present invention has a relatively simple structure and operating mechanism, the manufacturing cost can be reduced, and the effects thereof are extremely large in practical use.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a holding guide in a carton guide of the present invention.

FIG. 2 is a side view of the holding guide.

[Explanation of symbols]

1 Holding guide 2 support 3 carton top 4 tip

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Claims (2)

(57) [Claims] 1. An elevating and lowering table facing a filling nozzle for filling a liquid, a paper carton transferred to an elevating and lowering table directly below the filling nozzle, and a vertically movable unit in conjunction with the elevating and lowering table. In a carton guide device provided with a holding guide, the holding guide is directed to a pair of parallel supporting rods having a facing interval of about the inner width of the opening end of the carton top, and a tip of the supporting rod facing to the inside facing the supporting rods. While the inclined surface is provided, the tip of the supporting rod is introduced into the opening end of the rectangular carton top by the movement of the holding guide with respect to the carton placed on the elevating and placing table, and the inclined surface is provided while the tip is introduced. And the supporting rods continuous to this gradually contact the inside of the opening end to correct the error of the carton mounting position on the elevating and lowering table in the opposing direction of the pair of supporting rods and to maintain the opening shape of the carton top. Special Carton guide device to. 2. The carton guide device according to claim 1, wherein the holding guide is formed in a ladder shape.