JP2000084513A - Foreign matter discharge method in empty can - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely discharge foreign matters in an empty can together with a treating liquid by filling the treating liquid such as water, warm water or hot water into the empty can, they turning the empty can upside down to discharge the treating liquid, in a transfer path transporting the vacant can. SOLUTION: The empty can 1 is transported with a transportation conveyor 2 and when presence of the empty can 1 is sensed with a sensor ahead of a empty can washing treating part 3, respective nozzles of the empty can washing treating part 3 start to operate. At a foreign matter discharge part 5, water is ejected through plural pieces of filling nozzles 8 and water is filled into the empty can 1 and simultaneously water is ejected through plural balance nozzles 9 too. Also water is ejected through plural pieces of propelling nozzles 10 and the empty can 1 can be smoothly transported. The vacant can 1 filled with water is turned upside down at a shoot part of a transfer path and the filled water is discharged, and later the inside of the empty can 1 is rinsed at a rinsing part 11 and besides drained at a draining part 13, then again turned upside down at the shoot part and in a state that an opening part is made upside, the empty can 1 is transported and fed to a filling machine of the contents.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for discharging foreign substances, such as insects, hair, paint pieces, paper pieces, etc., which have entered the empty cans by mistake before filling the contents into the empty cans. Things.

[0002]

2. Description of the Related Art Empty cans, such as three-piece cans and two-piece cans, are manufactured in a can-making factory, packed in a box with one end opened, or stacked and packed on a pallet and transported to the canning manufacturing process. , Will be unpacked and supplied to the can-can-can filling line. And in each process up to that time, although strict control is performed because foreign matter is not allowed to mix in the empty can, there is a problem that the foreign matter as described above is erroneously entered. .

Therefore, conventionally, for example, Japanese Patent Publication No. 52-68
As shown in FIG. 27, the water can was mistakenly mixed by inverting the empty can and spraying water or hot water onto the inner surface of the empty can by applying a water pressure to the inner surface of the empty can with a dedicated nozzle from below with the opening side facing downward. Although foreign matter is discharged, in some rare cases, the foreign matter is pressed against the bottom of the can due to water pressure, and the foreign matter cannot be discharged to the outside of the can by return water flow.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of such circumstances, and even if foreign substances such as insects, hair, paint pieces, and paper pieces are accidentally mixed into an empty can,
It is an object of the present invention to easily and surely discharge foreign matters before filling the empty can with the contents.

[0005]

In order to achieve the above object, the present invention provides a method for filling a can, which is filled with a processing liquid such as water, hot water or hot water, in a conveying path in which the can is conveyed. It is another object of the present invention to provide a method for discharging foreign matter in an empty can, in which foreign matter in the empty can is reliably discharged to the outside of the empty can together with the processing liquid by inverting the empty can and discharging the treatment liquid.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments.

FIGS. 1 and 2 are side and enlarged side views showing the structure of the present invention, wherein 1 is an empty can such as a two-piece can or a three-piece can, and the empty can 1 is an empty can supply such as a depalletizer. It is conveyed from an apparatus (not shown) to the empty can cleaning section 3 in front of the filling machine by the conveyor 2.

The empty can cleaning section 3 has an inclination of about 26.5 degrees, forms a transport path for the empty can 1 by four to six rails 4, and further includes a foreign matter discharge section 5 and a rinsing section 11. , A drainer 13 and is installed so as to be transported to a filling machine.

The foreign matter discharge section 5 comprises the processing liquid filling section 6 and the processing liquid discharge section 7. Above the processing liquid filling section 6, the empty can 1 is filled with water, hot water or hot water of 65 ° C. or more. The filling nozzle 8 for filling the processing liquid of the above is provided. In addition, in order to carry the empty can 1 smoothly,
A balance nozzle 9 for resisting the filling pressure from the filling nozzle 8 and preventing the empty can 1 from being pressed down on the conveying path.
However, from at least one side of the empty can 1, a propelling nozzle 10 for promoting the transport of the empty can 1 is installed, and water, hot water, air or the like is ejected from each nozzle to the empty can 1. It is a configuration that is performed. Each of the nozzles is activated by detecting the presence of the empty can 1 in front of the processing liquid filling section 6 by a sensor or the like.

The processing liquid discharge section 7 is for discharging the processing liquid filled in the empty can 1 at a stretch. Since the transport path is set in a state where the transport path is twisted by 180 degrees, the empty can 1 is also being transported. And the charged processing liquid is discharged. Since the reversal at this time is performed at once without stopping on the way, even the foreign matter temporarily adhering in the empty can 1
It is discharged out of the can together with this treatment liquid.

The rinsing section 11 is a conventional one, and a cleaning nozzle 12 for injecting rinsing water such as water into the empty can 1 having an opening downward at the lower part of the transport path, and a cleaning nozzle 12 similar to the above. Propulsion nozzle and balance nozzle (neither shown)
Is provided at the top. In addition, a transport path is provided in the drainer 13 so that the empty can 1 is transported for a certain period of time with the can 1 facing downward. Thereafter, the transport path is twisted by 180 degrees so that the empty can 1 is returned to the original state in which the opening is upward.

[0011]

Next, embodiments of the present invention will be described.

The empty can 1 is conveyed from the depalletizer by the conveyor 2 at a speed of about 1500 cans / min. When the presence of the empty can 1 is detected by a sensor in front of the empty can cleaning section 3, the empty can 1 Each nozzle installed in the cleaning section 3 starts operating. In the foreign matter discharge section 5, 9
From the 20 filling nozzles 8 formed between 50 mm, at a pressure of 1.5 kg / cm 2 and a flow rate of 6.5 L / mi
At the same time, a predetermined amount of water is injected into the empty can 1 to be conveyed, and water is also ejected from the balance nozzle 9 under the same conditions as the same number of nozzles as the number of filling nozzles.
In addition, 1.5 kg / cm 2 is obtained from eight propulsion nozzles 10.
At a pressure of 6, water at a flow rate of 6.5 L / min is ejected, and the empty can 1 is smoothly transported.

The empty can 1 filled with a predetermined amount of water is turned upside down in a chute portion formed in the conveying path and twisted by 180 degrees to discharge the filled water at a stretch, and thereafter, empty as before. The inside of the can 1 is rinsed by the rinsing unit 11, and the empty can 1 that has been drained by the draining unit 12 is conveyed to the filling machine for filling the contents with the opening turned upward by 180 degrees by a chute in the conveying path. Is done. When foreign matter remaining at this stage was confirmed, no foreign matter such as insects, hair, paint pieces, and paper pieces was found in the empty can 1.

[0014]

As described above, according to the present invention, insects, hair, paint fragments,
The empty cans can be supplied to the contents filling machine in an optimum state by a simple method, in which foreign substances such as paper pieces are reliably discharged.

[Brief description of the drawings]

FIG. 1 is a schematic side view of an embodiment of the present invention.

FIG. 2 is an enlarged side view of the present invention.

[Explanation of symbols]

 Reference Signs List 1 empty can 2 transport conveyor 3 empty can cleaning section 5 foreign matter discharge section 8 filling nozzle 9 balance nozzle 10 propulsion nozzle 11 rinse section 13 drain section

Claims (1)

[Claims] An empty can is filled with a processing liquid such as water, hot water or hot water in a transport path through which the empty can is transported, and then the empty can is inverted to discharge the processing liquid. A method for discharging foreign matter in an empty can, wherein the foreign matter in the can is discharged together with the processing liquid.