JPS5811621A - Germless packer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention involves folding a rolled packaging material, sealing it under appropriate heat, cutting it, filling it with the contents as individual self-standing pouches, and then using the packaging material. K to completely sterilize
The present invention relates to a sterile packaging device.

Conventionally, methods for sterilizing packaging materials include sterilization by immersion in 31m Os, chemical sterilization using 1lOGl/11carbonate, or UV sterilization.
Physical sterilization methods such as sterilization are mainly used.

Among these, HsO and sterilization have been used for a long time and are a common method, but if drying is insufficient due to wet sterilization, the product KM Soda 0. is likely to remain.

Some consumers find it difficult to use because it irritates their allergies9. 110G sterilization is a patch method due to gas sterilization, making it difficult to implement in-line like HsO, and there is a residual problem like HsOs.

Like IOG, Kr1ll can be sterilized in the final step of the manufacturing process using O, which permeates plastic packaging materials, and is often used as a medical packaging material for disposable injections.However, this method also uses 111M. There are problems such as deterioration of heat seal strength after irradiation and generation of odor. It was. O as a source
Since O 40 is used, it is not only difficult to handle, but also has a limited period of use (half-life of 1 year), requires 11 shielding plates, and has the problem of no radiation exposure. On the other hand, compared to other types of radiation, UV sterilization has the advantage of having fewer effects on the human body, is easy to handle, and does not cause any residual problems. With the appearance of K, it became more frequently used. However, sterilization is limited to the surface of the packaging material, and if there is dust etc. attached, there is a drawback that sterilization is insufficient in that area. To provide an aseptic packaging device which can completely sterilize, fill contents into an O packaging material in an aseptic state after sterilization, and further hermetically seal it.

Embodiment K) of the present invention will be described below with reference to one drawing.

First, the basic process of packaging material in this device will be explained.

II/ As shown in the figure, roll packaging materials, such as packaging materials with a heat-sealable surface, are sequentially pulled out from the roll 2, and slits 8 are formed at predetermined intervals in the center of the pulled-out packaging materials. ．． s,...S is opened, &, ((lull),
Next is Su! J, ) 8 is opened and the packaging material is folded and seamed from the center fold to form a W shape (K as shown in the diagram).

W-shaped mourning material/#i, (O) Bend edge 1 as shown in the figure
The bottom part along the lines 1, z, and rtc is sealed, and then the side part along the cutting line 11e11*... is sealed, resulting in an assembly of pouches r, a,...P! ,! 1((a
), this assembly of pouches is irradiated with electron beam using electron beam irradiation equipment JJK to completely sterilize it (・) figure).

Next, cut along pg @FC (f)
(Fig.), then fill each bacterium with the contents and seal the 10 pouches ((g) It). Note that the sleeve) 8 is the side part of the bottom O of IIK pouch r where both sides are directly sealed. Formed to be bonded.

Such packaging sterilization process 1iIIIi Figure 1 to Sec.
This is done using the equipment shown.

1 to 1, the sterile packaging apparatus of the present invention has a paper feeding section 10, and this paper feeding section 10K rotatably supports a roll roller, from which packaging materials 1 are successively drawn out. The pulled-out packaging material 1 is guided to the punch section // via a guide r, and in this punch Is//, the slit is formed in the center of the packaging material 10 by the punch /JK. The punch waste generated at this time is the punch part//K11
It is discharged to the outside by the blower/JK installed in m1.

The packaging material 1 that has passed through the punch section ii is transferred to the gusset forming section/
41 is folded into a W shape and then the bottom seal is /! K
Then, the bottom part of the packaging material is pressed by the heated press member 74. A sealant is attached to the packaging material in advance, and the bottom portion is sealed by heating and pressing the sealant.

The packaging material I is erected vertically in the molding section II, and the packaging material I is then passed through the nib seal section I. The side sealing part I has a heated press member /1 extending straight to the cross section, and the side of the packaging material is sealed along the cut 91s IIC with this heated press member it.

The feed roller portion adjacent to the side seal s17/
9 is provided, and this tweed four-roller portion L extends vertically, so that the packaging material L is pulled out by one feed roller X and one feed roller X.

On the other hand, the bottom cool part 140 has a 7# tosel U.
is attached, and the registration of the packaging material L is performed using this 7-oto cell U.
The rotation of the feed roller SO is controlled by the detection signal 4 from the feed roller SO.

And the mho packaging material is a collection of many Barachia),
The meat t1 is changed by the turner @U so that it becomes horizontal, and then subjected to electron beam irradiation @JJFp3 and sterilized. The front electron beam irradiation part n is formed in a labyrinth shape to prevent the electron beam from leaking to the outside.
Ngu Central Exit 11km! It is equipped with an electron beam irradiation tube attached, and consists of this electron beam irradiation Sosha Hiroden accelerator tube AA and a scanner 81.

The packaging material is below this scanner xb! - Pass through 30 haze. It was. A KFi lead plate is provided on the lower surface through which the packaging material passes, and this lead plate promotes the backscattering effect of the electron edge and allows the packaging material to effectively absorb the electron beam.

Note that the accelerating voltage of the electron beam is I! OK''l is sufficient, but depending on the type of packaging material, /10-100KI (, XJ
It is necessary to make it variable within a range of about 100 mm.

When the sterilized packaging material leaves the electron beam irradiation section, it is turned from horizontal to vertical by a part of the turner, forming a free-standing pouch. Next to the turn pa part richness j9
is provided with a feed roller section similar to the feed roller section/l described above. The packaging material l fed by the feed roller section dk is cut one after another along the cutting line 13 by the cutter 30 of the top section t into individual pouches r.

The pouch P, which has been pushed by the force, is held by suction by the three suction walls of the transfer station, and the three stopper walls are connected to the endless rotating belt.
JK are attached at appropriate intervals and move in synchronization with the packaging material O transport speed. The barachia transferred by suction cup JJK is held by J4IK, which has two claws on the left and right sides.
This holding body 341 is moved by the conveyance belt in synchronization with the conveyance speed of the packaging material.

Its left and right claws pinch the ends of the parachia and hold it in place. The three holding bodies rotate in an oval shape.

The transport is performed by transport motors JjK, and these transport motors and the holding body J41 form a transport holding device J6.

The pouch 1 held by the holder J4tK has a suction disc U for opening the pouch by suctioning both sides of the pouch 1.

It reaches the pouch first opening Iku JfK via the pouch first opening 3g consisting of n. In this case, an air cylinder-operated plug is inserted into the upper opening of the Parachia to ensure that the opening opens.

The completely opened pouch P is sent to the filling section nail.

This filling part nail consists of a supply W for supplying the contents I and a filling machine R that moves up and down (using an air cylinder) to fill the contents into the Parachia. The paratea filled with contents is sent to the zero-order degassing section.

Here, the upper ends of both sides of the pouch P are degassed from the edges pressed from both sides.In addition, in the first opening 3g of the pouch, the spacing between the claws of the holder 34t is reduced by the opening. The space between the air vents and the vacuum chamber is widened.

The mouth of the deaerated pouch PFi is sealed by the upper seal part #4 made up of two p-layers, and then the sealed part of the mouth of the pouch P is cooled by the roller 7 of the upper cooling part to ensure its sealing. becomes.

When the sealing of the opening of the pouch P is completed, the pouch P is transferred to the discharge section 41tK, where the holder 3da releases the pouch P and causes the product to fall onto the conveyor 0.

The conveyance path from the exit of the electron beam irradiation section to the cutting section 2 is covered by a duct-shaped seventh sterile chamber 1/. lk is connected to the first sterile chamber jJ of the oblong duct F through the transfer portion JI K *. The bottom of the first sodium-free chamber is also closed to minimize openings, and the inside is filled with sterile air to maintain a positive pressure state and prevent germs from entering from the outside. In the sterile chamber jl, sterile air may be flowed from the exit of the electron beam irradiation part in the direction of the cut part, or it may be flowed from approximately the center of the sterile channel l to the left and right KtlA11.

The first sterile chamber 52, which extends along the conveyance path from the transfer section 31 to the upper seal section 41tl, has an open bottom surface, so that a laminar flow is caused from the top to the bottom of the pouch P as shown in FIG. Sterile air is blown onto the eggplant.

Incidentally, it is desirable that sterile air is also blown over the entire movement path of the holding body 3, and the sterile air is
The equipment is sterilized in advance by 4 CHIO jets of steam before operating the equipment. It was. Said pouch iris opening part S
The arm 4t0a of the plug unit 4t0a and the supply port IJa with the filling machine move up and down, and there is a risk that the parts may come into contact with the outside air and contaminate the inside of the sterile chamber, so the sliding parts are sealed with pressurized heated steam. Move the arm HaO into the first sterile chamber.

After complete sterilization by electron beam sterilization, each step is performed in a sterile chamber, so that the packaging material can be filled with the contents in a sterile state and hermetically sealed.

The pouched potage soup produced by this device is J
OCK was cultured for one week, but no spoilage was observed and a product with good taste was obtained.

Next, a modification of the present invention will be described.

In the aseptic packaging apparatus shown in Figures 1 and 7,
Punch part//q) Next, the electron II irradiation part V is provided, and then the gusset forming part L, lower seal part/4° side seal part/7.74-d4-ra part The arrangement of each device O following the t is the same as that described above. However, in this device, the packaging material l is folded and l is folded.
(Please sterilize before storing), form a pouch, and
Although the sterilizing effect of the packaging material l is good compared to the above-mentioned device for sterilizing K*.

1st Muso Chiyamba! L length is 1k] Care must be taken to maintain sterile conditions after carbon sterilization.

Since the present invention is configured as described above, it is possible to completely sterilize the packaging material, and after sterilization, the packaging material can be filled with the contents in an aseptic state and sealed.

[Brief explanation of the drawing]

Figure 1 is a systematic diagram of the packaging process of the present invention, Figure 1 is a plan view of the aseptic packaging apparatus of the present invention, Figure 3 is a vertical sectional view of the same, and Figure 3 is a perspective view of the apparatus O that performs the latter half of the packaging process. Figure, irises! The figure is an explanatory diagram showing the sterile air leak inside the sterile chamber.
This figure and FIG. 7 are a longitudinal sectional view and a plan view thereof showing a modification of the device of the present invention. /...Packaging material, 10...Paper feed section, //...Punch section, Lda...Gusset forming section, n...Electron beam irradiation section, Body...Part of turn bar, - S...Cutter section, review...
・Holding body, 36 ・Transportation and holding device, j No. 1
Muso Chiyamba! Co... First sterile chamber (. Applicant's agent Inomata Clearing procedure amendment (method) Minoru 8, 1978 Director General of the Patent Office Shima 1) Haruki Tono 1, Indication of the case 1988 Patent application No. 101474 No. 2, Name of the invention Aseptic packaging device 3, Person making the amendment Relationship to the case Patent applicant (289) Dai Nippon Printing Co., Ltd. 7, Subject of the amendment

Claims (1)

[Claims:] A sealing device that pulls out a rolled packaging material, folds it, and seals it to form a pouch. an electron beam irradiation device for sterilizing the packaging material by electron beam irradiation; a power device for cutting the packaging material sealed by the sealing device to form individual pouches; and a device for holding the cut pouches. a transport holding device that transports the pouch; an opening device that opens the mouth of the pouch transported by the transport holding device;
a filling device for filling the opened pouch with contents;
A sealing device seals the mouth of the pouch filled with contents. It has a carbon-free chamber to cover the transport path of the packaging material between the electron beam irradiation device and the final processing process, and sterile air is blown into the sterile chamber to prevent air from entering from outside. A sterile packaging device characterized by: