ES2253023A1 - Packaging method for packaging machine involves injecting high pressure air into chamber after creating vacuum in chamber - Google Patents

Abstract

Containers with covers are introduced into a chamber. The chamber is closed and a vacuum is created in the chamber to obtain equal pressure in the interior of the chamber and the interiors of the containers. High pressure air is injected to the interior of the chamber for the pressure in the interiors of the containers to be less than the pressure in the interior of the chamber. An independent claim is also included for a packaging machine.

Description

Procedure for vacuum packaging containers and machine for packaging.

Procedure for vacuum packaging containers and packaging machine comprising: a first phase in which containers with a lid are introduced, at least partially filled, in a chamber, a second phase in which said closing chamber, a third phase in which partial or total vacuum is created in the chamber, through means to create the void, getting equal pressure inside the chamber and in the inside the containers, and a fourth phase in which injects air at high speed or pressure inside the chamber through means to inject air or pressure, so that the pressure inside the containers is lower than the pressure inside the chamber, closing these by said pressure difference.

Background of the invention

The patent is known in the state of the art  Spanish nº 324.414, of D. Manuel Jara and D. Jaime Prenafeta, of 1966, which distinguishes a machine for packaging bags, which It comprises a waterproof chamber and a cover. It is planned that machine be square, placing inside the chamber the referred bag, on which the vacuum has to be created.

When closing the aforementioned cover on the camera, middle of an existing manual lever on one of the sides, and of the control means, the vacuum is created inside the aforementioned chamber, and at the same time a thermosoldering iron is lowered, which It is located in the lid and integral to it, which welds the mouth or opening of the bag, leaving the product contained in the  inside said vacuum bag.

Brief explanation of the requested invention

The present invention patent is a great advancement in the packaging sector, especially of products perishable, as it allows to increase the number of containers in the inside of the machine, increasing its resistance, with minimal maintenance costs.

The procedure and the machine in question enable the closure of any type of containers that incorporate a waterproof cap, because, thanks to the means of control, the depression of empty.

Once the void has been created inside the machine chamber is injected air at high speed or pressure inside the chamber, so that the pressure inside of the containers to be closed is less than the pressure in the inside the chamber, closing due to said pressure difference The containers.

In fact another remarkable aspect is the existence of a stem, in principle in number of one and located in the center of the camera base, although they could be more or located at another point in the base, which incorporates a series of holes that allow the extraction and injection of air or pressure from / to the inside of the chamber.

The fact that the stem is perpendicular to the  base and that can incorporate a hole or more suction or drive, allows to absorb or boost the air more quickly, because the air can quickly find a hole, accelerating the vacuum or the entry of air or pressure into the camera.

Also, the possibility that the  referred rod has a sufficient length such that when the cover is closed on the chamber, said cover rests on the head of the referred rod, which increases, in the long run, the stability and durability of the lid.

Preferably the chamber and the cover will be circular, since it has been observed that this form allows to increase the resistance of the tank when the vacuum is applied; but bliss form cannot be necessary or exclusive, since they can be manufacture in the ways that buyers require or that are determined by the shape of the container (s)

Finally, to facilitate fixing and container stability, can be arranged on the basis of the camera of some templates, for the correct positioning of the aforementioned containers inside the machine.

Brief description of the drawings

In order to facilitate the explanation, accompanying herein two sheets of drawings in which they have represented a practical case of realization, which citation by way of example, not limiting the scope of this invention.

- Figure 1 is a perspective view of the object of the present invention.

- Figure 2 is an elevation view of the part top of the machine.

Concrete realization of the requested utility model

Figure 1 illustrates machine 1, the chamber 2, the tight cover 4, the control means, in particular a control panel 5, a pressure gauge 14 and a vacuum gauge 15.

Figure 2 shows the mentioned camera 2,  with its base 2b, the cover 4, inside which the chamber is observe the containers 3, the stem 7, with its head 7b and about holes 9. Also, and outside the machine, it is complete with control panel 5 and vacuum gauge 15.

So in the concrete realization, before putting in  operation machine 1 is checked by means of the pressure gauge 14 a certain pressure, for example 6 bars. Also I know Check that the machine has tension.

They are placed inside the chamber 2 the 3 containers with sealed lid to close, on the template (no illustrated in the drawings). It is necessary that among those referred 3 containers there is a distance that prevents them from touching each other they.

Subsequently, cover 2 is closed, leaning it on the stem 7 that serves as a foothold and allowing it to increase resistance to pressures.

In principle, and according to this embodiment rod 7 has been arranged, although obviously if the size of the machine varies, you can plan the placement of various stems on the base 2b of the chamber.

The machine is connected and the creation of the vacuum by aspiration, by means to create the vacuum (not shown), through the holes 9 of the stem 7, of the existing air in chamber 2, produced by vacuum effect the closure of the lids of the containers 3.

Once the vacuum is finished, air is injected into high speed or pressure inside chamber 2 through means for injecting air or pressure (not illustrated in the drawings), by means of the stems 3 and holes 9, so that the pressure inside the container 3 is less than the pressure inside the chamber 2, closing by said difference of press the containers 3.

It is necessary to highlight a higher volume of product inside the containers, it will be necessary to inject higher speed air or higher pressure to close the same.

Approximately 35 seconds later, although it is variable depending on the containers to close, an indicator existing light in the control panel will indicate that we can proceed to open lid 3 and remove the containers from the inside chamber 2; being able to place other 3 containers in the inside of chamber 2 and proceed with the procedure previously indicated to create the void inside the chamber and close the lids of the containers as many times as be necessary.

With regard to cover 4, this one, in this concrete realization is in number of one, although by demands of Manufacturing can be in the number that is required.

The means to create the void can be of type  conventional.

The present invention patent describes a new procedure for vacuum packaging containers and packaging machine The examples mentioned here are not Limitations of the present invention, therefore it may have different applications and / or adaptations, all of them within the scope of the following claims.

Claims (8)

1. Procedure for vacuum packing containers, of the type comprising:

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a first phase in which at least one container (3) is introduced with a cover, at least partially filled, inside a chamber  (2),

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a second phase in which said chamber (2) is closed so waterproof, and

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a third phase in which the partial or total vacuum is created in the inside the said chamber (2), through means for create the vacuum, obtaining equal pressure inside the chamber (2) and inside the container (3),

characterized in that it also comprises the following phases:

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a fourth phase in which high velocity air or pressure is injected into the inside of the chamber (2) through means to inject air or pressure, so that the pressure inside the container (3), which is at least one, is less than the pressure in the inside the chamber (2), closing by said difference of Press the containers (3).

2. Machine for vacuum packaging of containers according to the method of claim 1, of the type comprising a chamber (2), wherein the containers (3) to be packaged are housed, with at least one lid (4) for sealing, control means (5, 14, 15) of the machine referred and means for creating a vacuum in said characterized camera that incorporates means for injecting high velocity air or pressure inside the camera (2). 3. Machine according to claim 2 characterized in that it also includes at least one rod (7) integral with the base (2b) of said chamber, and with at least one hole (9) for the extraction and injection of air from inside of the camera. 4. Machine according to claim 2 or 3, characterized in that the rod (7), which is at least one, is of sufficient length so that at the time the lid (4) is closed on the chamber (2), said cover also rests on the head (7b) of said rod (7). 5. Machine according to claim 2 or 3, characterized in that an orifice for air extraction is located in the head (7b) of said rod. 6. Machine according to claim 2 or 3 or 4 or 5 wherein the rod aforementioned (7) is positioned in the center of the base (2b) of the chamber. 7. Machine according to claim 6, characterized in that said chamber (2) and the cover (4) are circular. 8. Machine according to claim 6 or 7, characterized in that in the base (2b) of the chamber it is provided the placement of templates for the positioning of the containers (3) to be packaged.