JPH0541495B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an aseptic canning machine.

For example, when canning drinks such as coffee,
Normally, a can is filled with a beverage using a filling machine, a can lid is placed on the can, the can is sealed by seaming, and then retort sterilization is performed.
However, such retort sterilization not only requires a retort sterilizer, but also has the problem that retort sterilization deteriorates the taste of the beverage.

Therefore, by filling sterilized beverages into sterilized cans in a sterile atmosphere, transporting them to a seamer, covering them with can lids, and sealing them, there is no need for post-process retort sterilization. Aseptic canning is being carried out.

However, the aseptic canning machine for aseptic canning as described above has problems such as the filling liquid inside the can sometimes spilling out while the can with the can lid is being sent to the seamer.

The present invention was proposed in view of the above points, and
The purpose is to provide an aseptic canning machine that can prevent the contents from spilling in an aseptic atmosphere while the cans are filled with contents and then covered with can lids and sent to a seamer. be.

The present invention relates to a can transport carrier that intermittently transports cans supplied into a sterile room at a fixed pitch, and a spray device that sprays a sterilizing liquid onto cans sequentially provided along the can transport direction of the carrier. , a drying device that dries cans with hot air, a filling device that quantitatively fills the contents into the can, a covering device that covers the filled can with a can lid, and a temporary connection between the can and the can lid. A sealing device, a can conveying device for conveying the temporarily sealed can from the conveying carrier to the seamer, and a seamer for seaming the temporarily sealed can lid onto the can conveyed by the can conveying device; The device consists of a heater that heats a hot welding agent that has been attached to at least one of the can or the can lid in advance to weld the two together before being supplied into the sterile room, and a cooling device that cools the welded part. An aseptic canning machine characterized by: The gist is to install a temporary sealing device downstream of the covering device as described above, temporarily seal the can lid with a hot welding agent attached to at least one of the can or the can lid, and send the can lid to the seamer. This prevents the contents from spilling during this time.

The present invention will be explained below based on examples.

FIG. 1 is a front view of the aseptic canning machine, and FIG. 2 is a plan view of FIG. 1. In the figure, 1 is a can, 2 is a sterile room positively pressurized with sterile air as is well known, and 3 is a can transport carrier installed in the sterile room 2, which is intermittently driven and transports a plurality of cans 1 at a fixed pitch. It is designed to be transported intermittently. 4 is a supply device that supplies cans 1 to carrier 3; 5 is a hydrogen peroxide spray device that sprays hydrogen peroxide onto can 1 in order to sterilize can 1 supplied into carrier 3; and 6 is a hydrogen peroxide sprayer. Device 5
A hot air injection device 7 is provided at the wake of the hot air injection device 6 and dries the can 1 with hot air; 7 is a filling device that is provided at the wake of the hot air injection device 6 and fills the contents into the can 1 in a fixed amount;
Reference numeral 8 denotes a covering device that is provided downstream of the filling device 7 and covers the can lid 1a on the can 1 filled with contents. A can lid supply band 10 that takes out individual can lids and supplies them to the covering position for the can 1, and a hydrogen peroxide spraying device 11 that sprays hydrogen peroxide onto the can lids 1a sent by the can lid supply band 10 to sterilize the can lids 1a. , a hot air injection device 12, etc., which injects hot air onto the sterilized can lid 1a to dry the can lid 1a. 1
3 is a vertically movable heater for temporarily sealing the can lid by melting the hot welding agent attached to at least one of the covered can lid 1a or the can 1; 14 is for cooling the sealing portion; 15 is a can transport device that takes out the can 1 with the temporarily sealed can lid 1a from the carrier 3 and sends it to the seamer; 16 is a can tightening device that can tighten the can lid 1a covered with the can 1; 17 is a can discharging device.

Furthermore, the can 1 and can lid 1a used for the above-mentioned aseptic canned goods are made of aluminum or steel, as shown in FIG. A heat welding agent 1c such as polyethylene is attached to the area Q.

In the above configuration, the cans 1 supplied into the carrier 3 by the can supply device 4 are sterilized by hydrogen peroxide sprayed from the spray device 5, and then dried by hot air sprayed from the hot air spray device 6. Ru. Next, it is sent to the lower part of the filling device 7, and a fixed amount of contents such as a drink is filled therein. When the can 1 filled with contents is sent below the covering device 8, the sterilized can lids 1a are sequentially covered, and at least one of the can or the can lid where the heater 13 has been lowered is placed downstream. The heat welding agent attached to the is heated to weld the two together. Next, the cooling device 14 descends to cool the welded portion and temporarily seal the can lid 1a. Can lid 1a
The temporarily sealed can 1 is taken out from the carrier 3, sent to a seamer 16 by a conveyance device 15, sealed, and then discharged onto a delivery device 17.

As described above, after the can 1 is filled with contents, it is sent to the seamer with the can lid 1a temporarily sealed, so that spillage of the contents during this time can be reliably prevented.

[Brief explanation of the drawing]

Figure 1 is a front view showing one embodiment of the present invention, Figure 2 is a front view showing one embodiment of the present invention;
The figure is a plan view of Figure 1, Figures 3a, b, c, and d are views showing the structure of the can and can lid, and a is a side view of the whole.
b is a view from A-A in a, c is a view from B-B in a,
d is an enlarged view of part C of a, and e is an enlarged view of part D of a. 1...can, 1a...can lid, 1c...thermal adhesive,
2... Sterile room, 3... Carrier, 4... Can supply device, 5... Hydrogen peroxide spray device, 6... Hot air injection device, 7... Filling device, 8... Covering device, 13...
... Heater, 14 ... Cooling device, 15 ... Conveyance device, 16 ... Seamer.

Claims (1)

[Claims] 1. A can transport carrier that intermittently transports cans supplied into a sterile room at fixed pitches, a spray device that sprays sterilizing liquid onto cans that are sequentially installed along the can transport direction of the carrier, and a can transporter that sprays cans with hot air. a drying device for drying a can, a filling device for filling a fixed amount of contents into a can, a covering device for covering a can lid with a can filled with contents, a temporary sealing device for a can and a can lid; The temporary sealing device includes a can transport device that transports temporarily sealed cans from the can transport carrier to a seamer, and a seamer that seams a temporarily sealed can lid to the can transported by the can transport device, and the temporary seal device includes: It is characterized by consisting of a heater that heats a hot welding agent previously attached to at least one of the can or the can lid to weld them together before being supplied into the sterile chamber, and a cooling device that cools the welded part. Aseptic canning machine.