JPH06179428A - Manufacturing device for metal can filled with content - Google Patents

Abstract

PURPOSE:To ensure the germ-free property of a content without heat-treating the content by a method wherein a germ-free content is filled in a germ-free can main body under a germ-free atmosphere, and the mouth part of the can main body filled with the content is sealed by a germ-free inner lid. CONSTITUTION:A can main body 11 which is fed by a can main body feeding device 23 to a conveyor 22 in a germ-free chamber 21 is sterilized by passing through a sterilizing chamber 63. When the sterilized can main body 11 reaches a location under a filling nozzle 69, a specified quantity of a content is filled, and liquid nitrogen is dripped from a nozzle 67. An inner lid 13 is sterilized while being carried in a tunnel by a chute 73, and is fed in an overhang part 43, and is received by a guide 71. When the can main body filled with content 11 is carried under the guide 71, a suction member 72 receives the inner lid 13 from the guide 71, and put the inner lid 13 on the can main body 11. Then, the can main body 11 covered by the inner lid 13 is carried under a heat- pressing member 77, and the heat-pressing member 77 is pressed to the mouth edge part of the can main body 11 through the inner lid 13, and the outer peripheral edge of the inner lid 13 is heat-sealed to the mouth edge part of the can main body 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing a metal can such as aluminum filled with a beverage such as juice.

[0002]

2. Description of the Related Art An apparatus of this type comprises a can seamer, a can body supplying means for supplying a can filling body with a content-filled can body, and a can lid supplying means for supplying a can lid to the can seamer. Are known.

In the above apparatus, in order to secure the expiration date of the contents, that is, the sterility of the contents, the heat treatment of the contents is performed before or after filling the can body with the contents.

[0004]

In the above, the heat treatment of the contents adversely affects the quality of the product such as impairing the flavor of the contents.

An object of the present invention is to provide an apparatus for manufacturing a content-filled metal can in which the sterility of the content can be ensured without heat-treating the content.

[0006]

SUMMARY OF THE INVENTION A manufacturing apparatus for a content-filled metal can according to the present invention comprises a can seamer, a can body supplying means for supplying a can filled sea body with a content filled can body, and a can lid for supplying the can seamer. In a manufacturing apparatus for a content-filled metal can, which comprises a can lid supplying means, a can body supplying means fills a sterile can body with aseptic contents under a sterile atmosphere and aseptically sterilizes the mouth part of the content filling can body. It is characterized in that a filling and sealing device for sealing with an inner lid is provided.

[0007]

In the apparatus for manufacturing a metal can filled with contents according to the present invention, the can main body supplying means fills the aseptic contents into the aseptic can main body under a sterile atmosphere, and the mouth portion of the contents filling can main body is covered with a sterile inner lid. Since it is equipped with a filling and sealing device, the aseptic contents are filled under aseptic atmosphere and the mouth is sealed with an aseptic inner lid. Is given.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 2, the can is a bottomed cylindrical can body.
11, shallow dish-shaped can lid 12 and almost the same shape as this,
It consists of a slightly smaller inner lid 13. Can body 11 and can lid
12 is made of thin aluminum plate, and the inner lid 13 is
It is made of an aluminum foil-based heat-sealable laminated material having a thickness of about 50 μm. The can lid 12 is formed with a drinking cup forming score 14 having a substantially annular shape, leaving the connecting portion, and a Stein type tab 15 is caulked outside the score 14 in the vicinity of the connecting portion. .

To open the finished can shown in FIG. 4, the tab 15 is raised and the base of the tab 15 causes the score 14 to rise.
The inner portion of the is pressed downward to break the score 14, thereby forming a drinking mouth on the can lid 12. The inner part of the score 14 and the tab 15 even after the mouth is formed
Remains on the can lid 12, and at the same time when the drinking mouth is formed, a part of the inner lid 13 is cut and an opening communicating with the drinking mouth is formed in the inner lid 13.

In the following description, "front and rear" means that, with reference to FIG. 1, the right side of FIG. 1 is the front and the opposite side is the rear.

As shown in FIG. 1, the can manufacturing apparatus has a closed sterile chamber 21 formed in a substantially rectangular parallelepiped shape that is long in the front-rear direction, and a forward transfer path disposed in the sterile chamber 21. Can body transport conveyor 22, a can body supply device 23 and a can body sterilizer that are sequentially arranged on the top wall of the aseptic chamber 21 along the transport path of the can transport conveyor 22.
24, filling device 26, liquid nitrogen dropping device 25, inner lid supply device 2
7. A sealing device 28, a can body discharging device 29, and a can seamer 31 arranged in front of the aseptic chamber 21.

A can body inlet 41 is provided near the rear end of the top wall of the aseptic chamber 21, and a can body outlet 42 is provided near the front end thereof. Further, an upward projecting portion 43 is provided at a location on the top wall of the aseptic chamber 21 where the inner lid supply device is arranged.

The can main body conveyor 22 has a front intermittent drive drive sprocket 51 and a rear driven sprocket 52, an endless chain 53 hung on these sprockets 51 and 52, and a large number of chains mounted on the chain 53 at predetermined intervals. It consists of a holder 54.

The can body feeding device 23 is connected to the edge of the can body inlet 41 and stores a large number of can bodies 11 in a stacked state, and one can body 11 from the lower end of the magazine 61. And a suction member 62 that can be moved up and down to be passed to a holder 54. The can body sterilizing device 24 includes a sterilization chamber 63 provided in the sterilization chamber 21 so as to surround a part of the movement path of the can body, and a hydrogen peroxide water spray nozzle having a lower end spray port facing the sterilization chamber 63. 64 and an ultraviolet irradiation lamp located immediately in front of the hydrogen peroxide spray nozzle 64
65 and primary and secondary hot air blowing nozzles 66 facing the lower end outlet just in front of the ultraviolet irradiation lamp 65. The filling device 26 is provided with a tank 68 containing the contents that have been sterilized with a filtration filter or the like in advance, and a filling nozzle 69 that extends downward from the tank 68 and faces the lower end filling port immediately in front of the sterilization chamber 63. There is. Liquid nitrogen dropping device 25
Is provided with a dropping nozzle 67 whose lower end dropping port is directly in front of the filling nozzle 69. The inner lid supply device 27 includes a positioning guide 71 arranged near the ceiling of the aseptic chamber upper overhanging portion 43, and a suction and reversible suction member 72 arranged between the guide 71 and the can body moving path. , An inclined chute 73 extending from the outside of the overhanging portion 43 and exposing the lower end discharge port to the guide 71, a sterilization tunnel 74 surrounding the inclined chute 73 outside the overhanging portion 43, and a lower end spray port. A hydrogen peroxide water spray nozzle 75 facing the sterilization tunnel 74 and a hot air blowing nozzle 76 having a lower end outlet facing diagonally below the hydrogen peroxide water spray nozzle 75 are provided. Sealing device
28 includes a heating and pressing member 77 that can be moved up and down. The can body discharging device 29 includes a sliding plate 78 that is passed between the can body outlet 42 and the can seamer 31, a lifter 79 that can be raised and lowered through the can body outlet 42, and a front and rear direction movable above the sliding plate 78. It has a pusher 81.

The can seamer 31 is equipped with a can lid supply device 82.

While passing through the sterilization chamber 63, the can body 11 supplied to the conveyor 22 by the can body supply device 23 is sprayed with hydrogen peroxide solution, then irradiated with ultraviolet rays, and finally, hot air. Is sprayed, whereby the can body 11 is sterilized.

When the sterilized can body 11 reaches below the filling nozzle 69, a predetermined amount of content is filled, and then liquid nitrogen is dropped from the liquid nitrogen dropping nozzle 67. Can body 11
A part of the liquid nitrogen dropped inside is replaced with the air in the can main body 11, and the rest functions to keep the inside of the completed can at a positive pressure.

On the other hand, the inner lid 13 is sprayed with hydrogen peroxide while being transported in the tunnel 74 by the chute 73,
Next, hot air is blown, whereby the inner lid 13 is sterilized, and is sent into the overhanging portion 43 while being sterilized and received by the guide 71.

Then, when the can body 11 filled with the contents is carried in below the guide 71, the suction member 72 receives the inner lid 13 from the guide and covers the carried can body 11. Then, the can body 11 covered with the inner lid 13 is carried in below the heating and pressing member 77, and the heating and pressing member 77 is pressed against the rim portion of the can body 11 via the inner lid 13, whereby the can body 11 The outer peripheral edge portion of the inner lid 13 is heat-sealed to the rim portion of the (see FIG. 3).

In the above steps, the can main body 11 filled with the contents and sealed by the inner lid 13 is discharged from the conveyor 22 to the outside of the aseptic chamber 21 by the can main body discharging device 29, and the can seam is discharged.
Supplied to 31.

When the can body 11 is supplied to the can seamer 31, the can seamer 31 sends the can lid 12 sent by the can lid supplying device 82.
Is placed on the can body 11, and finally, as shown in FIG.
A can lid 12 and an inner lid 13 are doubly wound around the rim of the can body 11 to obtain a finished can.

[0023]

According to the present invention, the aseptic can body, which is filled with aseptic contents in a sterile atmosphere and whose mouth is sealed with the aseptic inner lid, is supplied to the can seamer, and the can lid is placed on the inner lid. Therefore, the sterilization of the contents can be ensured without heat-treating the contents.

[Brief description of drawings]

FIG. 1 is a layout diagram of an apparatus according to the present invention.

FIG. 2 is an exploded perspective view of a can manufactured by the device according to the present invention.

FIG. 3 is a cross-sectional view showing a state where the can body is sealed with an inner lid.

FIG. 4 is a cross-sectional view showing a state in which a can lid is wound around the rim portion of the can body.

[Explanation of symbols]

 11 Can body 12 Can lid 13 Inner lid 21 Aseptic chamber 22 Conveyor 24 Can body sterilizing device 26 Filling device 27 Inner lid supplying device 28 Sealing device 31 Can seamer

Claims (1)

[Claims] 1. Content filling comprising a can seamer 31, a can body supply means for supplying a can body 11 with a content filling can body 11 to the can seamer 31, and a can lid supply means for supplying a can lid 13 to the can seamer 31. In an apparatus for manufacturing a metal can, a filling and sealing device that fills the aseptic contents into the aseptic can body 11 under a sterile atmosphere and seals the mouth of the content filling can body 11 with an aseptic inner lid 12 is used as a can body supply means. An apparatus for manufacturing metal cans filled with contents, characterized by being provided.