ES2273653T3 - CONTAINER FOR VISCOSE PRODUCTS THAT INCLUDES A FLEXIBLE BAG AND A RIGID PROTECTION WRAPPER AND ITS USE. - Google Patents

Abstract

The paint storage method consists of choosing a sealed and flexible bag (10) with an insufficient resistance to resist the weight of the product. The bag is placed in a protective rigid container (20) so that its edge passes over that of the container. The bag is held open and the product is poured into it until it is level with the container edge. The bag edge is then folded on top of the product and stored. After using the product the empty bag is removed from the container.

Description

Container for viscous products that includes a flexible bag and a rigid protective wrap and its use.

The use of viscous products means conditioning in a place of manufacture of the products, and their transport to a place of use.

Generally, the conditioning of said products are made in 200-liter metal barrels whose weight it is too high for two men and, with greater reason, one Only, you can move them.

In the case of paints, putties and coatings intended for construction, barrels they constitute a considerable nuisance for paint companies since, in addition to their different manipulations, empty barrels they are unusable and accumulate until their elimination, adding the empty storage to full storage, that is companies must have a much more important surface The greater the use of them.

In fact, it is impossible in practice to clean empty barrels, since product waste after drying require the use of powerful and harmful solvents in the long operations, involving all expenses prohibitive

Empty barrels themselves constitute waste very polluting and its destruction costs expensive.

On the other hand, formed containers are known by a flexible bag placed in a rigid outer shell, but the placement of the bag, the transfers of the set, the emptying the bag by tilting the assembly and reemployment of the bag require it to be sturdy. Generally, said bag It is made from a plastic case that should be thick, which presents inconvenience not only because of its price, but also for use.

After filling the bag, its opening, since the stiffness of the bag is such that during the transport of the set, if its edges are simply folded, will tend to reopen because of the "energy" of the material synthetic.

For the same reason, it is not possible to lower the edge of the bag over the edge of the envelope, well to fill the bag already placed in the envelope, well to empty its contents by pumping. In addition, since the bag is still sealed, it opens cutting it with the blade of a knife or equivalent, which is incompatible with the guarantee of having a bag edge long enough to cover the envelope externally and protect her

Therefore, containers of this type, known by the name of "bag-in-barrel" are usually destined to empty at once, turning them over.

For example, document GB 2279058 is known, which describes a relatively complex machine for lifting a large capacity barrel, dump it and empty it.

Document DE 19544806 refers to a drum of paint of 3, 5 or 10 liters. In the case of small containers which must be used manually, this document describes the way of placing the bag in the drum, since it is an operation industrial, without describing a particular procedure necessary to Extract your content.

The present invention relates to a new procedure, which allows to keep the barrels of origin, internally and externally, and reuse them as is, due to which they have not become dirty, also allowing said procedure almost complete use of the product, which avoids important losses.

For this purpose, the invention aims at a method according to claim 1.

The invention will be better understood by the following detailed description made with reference to the drawing attached. Of course, description and drawing are provided. only as an indicative and non-limiting example.

Figure 1 is a schematic view showing the two parts of a container according to the invention.

Figure 2 is a schematic sectional view of an empty container according to the invention.

Figure 3 is a schematic sectional view of a container according to the invention, during its filling.

Figure 4 is a schematic sectional view of a container according to the invention, filled and closed, ready for the job.

Figure 5 is a schematic view illustrating the method of use according to the invention of a container full and closed, until the product is extracted.

Figure 6 is a schematic view illustrating the method of use according to the invention, after having finished product extraction.

With reference to figures 1 to 4, it is observed that a container according to the invention includes two parts, is say a plastic bag 10 and a sturdy wrap twenty.

The bag 10 has a free mouth 11 and the wrapped 20 has a removable lid 21.

The envelope 20 has a bottom 22 and walls 23 whose height h is less than the height H of the bag 10, so that the edge 12 of the mouth 11 exceeds the edge 24 of the envelope 20.

The envelope 20 represented here is a standard metal barrel with a useful capacity of 200 liters, because it is the height H of the bag that must be adapted to the h of the barrel 20 that is constant, since, on the contrary, it is very Easy to determine the height H during the manufacture of the bag 10.

In addition, the same occurs with the diameter of the cover from which bag 10 is obtained according to a procedure well known in itself, since the interior space of the 20 barrel is as intangible as its height.

To fill the container, first place the bag 10 in barrel 20 (figure 2), releasing mouth 11 in order That it is wide open. As depicted, it becomes the top of the bag 10 so that it can be placed in the outside of the barrel 20, covering the edge 24, which has the triple advantage of keeping the bag 10 deployed, keep your mouth 11 open and prevent dirt from entering between the bag 10 and the 20 barrel or, more generally, that falls outside the barrel twenty.

The bag 10 is chosen only by its tightness, that is to say by its ability to isolate the product to pack B of barrel 20, since it is not necessary to own just a great resistance since it takes support inside the barrel 20, which is extremely robust and rigid, in addition to It is not intended to be reused.

Bag 10 should only be less sensitive to accidental shocks that may occur during the manipulations and filling operations, capable of causing Cuts or breaks.

If the bag 10 is well calibrated in relation to to barrel 20, there should be no relative movements between them, since the bag 10 is strongly applied against the walls 23 by means of the own weight of its content.

In relation to figure 3, a filling nozzle A that has been introduced into the container before of the arrival of product B, in order to prevent it from arriving violently against the bottom of the bag 10 still empty, since it could be brutally dragged to the bottom of the barrel, so it is important to keep bag 10 not only open, but also at a good height.

As product level B rises by the container, the nozzle A is raised, in a manner known per se, and stops filling when the product level has reached a value such that it is possible to fold the top of the bag 10 on itself same and "close" the bag without sealing it, as shown in figure 4, after which a cover 21 is placed and fixed strongly.

The fold of the top of the bag 10 It is useful to prevent jerks due to transport causing product overflows out of the bag 10 and therefore in the barrel 20, but its sealing is useless since the orientation of bag assembly 10 - barrel 20, from placement of the bag, its filling, the closing of the barrel, its transport, its opening, until content is extracted B.

Another equivalent solution is to leave the edge of the bag 10 folded over the edge 24 of the barrel 20 and catch it The advantage of this solution is to simplify the manipulations, since when removing the lid 21, the bag 10 is already open

On the contrary, the bottom of the lid 21 may be stained by splashes of product B, in which case a protective sheet of plastic material must be placed between the upper part of product B and the lower part of the lid twenty-one.

Since the outer diameter of the lid 21 must be placed inside the barrel 20, it is necessary to take into account of the thickness (even minimum) of the bag 10, to prevent the breakage of the latter by the lid 21 itself during its placement.

For certain products, it is possible to place a fits between the top of the closed bag 10 and the part bottom of the lid 21, in order to oppose the movements of the product B during transport.

As shown in Figure 4, the container of the invention is ready for storage and its subsequent transport and delivery to the recipient.

With reference to figure 5, it is observed how use the finished container of figure 4.

It is transported to the place of use in its orientation of origin, which is symbolized by the arrow F1, and the cover 21 is removed, the edges of the bag 10, which are tucked outside the barrel 20 above the edge 24, and a connected suction rod C is immersed in the product by a tube D at the inlet of a pump E. At the exit of the it is attached a flexible F that flows into a gun G.

The installation by which the product B inside the container is not part of the invention, and what has just been described is merely indicative and essentially refers to the application of the invention to the use of paints, putties and coatings in the field of construction, which represents a possibility among others.

When the container no longer contains enough product B to be able to extract it normally, the cane is removed from suction C, and bag 10 is removed following arrow F2 (figure 6) and drive, as explained by arrow F3, to a calender 30 equipped with two rollers 31 and 32 moving positions by a crank 33.

The bag 10 is introduced by its bottom between the two rollers 31 and 32 and the crank 33 is driven to drag the rollers in the direction of arrows F4 and F5, which forces the bag to move following the arrow F6 and to pass in its totality between rollers 31 and 32, whose minimum separation causes the crushing of the bag 10 and the energetic thrust of the remains of product B to the mouth of the bag 10, remains that have been well remained at the bottom of bag 10 because it could not be removed, well attached to the walls of the bag 10.

These remains are collected in a small container 34 for use, instead of being destroyed as It is the case today. For this, they can be used directly these remains (by brush, roller or spatula if they are remains of a construction product) or transfer them to a bag 10 which has just been opened, in order to recover them for use. The bag 10 that no longer really contains anything to recover is eliminate following the symbolic arrow F7.

The barrel 20 released from the bag 10 has been left Perfectly clean and can be reused indefinitely.

Cover 21 is placed again and forwarded following arrow F8 to the place of filling for another use with a new bag 10 still unused, since the barrel always remains intact and available, while bag 10 serves only one time.

It is observed that the recovery of the remains prevents wasting, but also allows to fight against pollution, because the barrels are no longer destroyed and what that still contain more or less dangerous products, and that during the destruction of the bags, these contain only one tiny amount of such dangerous or harmful products.

The invention provides a specific arrangement. when product B must undergo the action of an agitator, a mixer or a mixer.

This may be the case when product B is a slightly stable mixture, whose components are separated and overlap, in which heavier products tend to fall to background, while the lighter components amount to the surface.

It is also the case when product B Delivered in the container of the invention is a standard basis (for white paint example) to which dyes should be added in the place of use

A stirrer must then be used, with in order to homogenize the mixture.

With a running barrel, the mixer is ordinary type, with a handle at the base of which is a propeller dragged by a small electric motor.

This device is not easy to use for a container according to the invention, since the agitator immersed in the mass of product B must be manipulated and moved towards the periphery where the bag is 10. This is perfectly adapted to isolate a product and is used in such conditions that resists product B movements, but is not designed to resist breakage that the mixer propeller can cause when it comes in contact with it.

In order to be able to use a container formed by an outer barrel 20 and an inner bag 10, and ensure a good mixture, the invention provides a stirrer particular, which is represented in figure 7.

Naturally, said figure is schematic and voluntarily generic, since the invention applies to all agitators, whether merely manual or mechanical and have a moving or at least aggressive organ for the bag 10.

It is noted that the agitator 40 represented includes a central element, or handle, 41 carrier of an engine electric 42 kinematically attached to an axis (not visible in the drawing) to which a propeller 43 is attached.

According to the invention, said propeller is surrounded by a protective element that is formed by a fixed ring 44 arranged beyond the virtual circle that travel the ends of the blades of the propeller 43 in rotation and held in place by means of support arms 45 fixed to the handle 41.

Said ring remembers the one associated with ship propellers, in a known way.

The height I of the ring must be sufficient to that said ring 44 forms a stop against the bottom of the bag 10, thus preventing any contact between the bottom of the bag 10 and the propeller 43 in rotation.

The bag 10 itself, along the cylindrical wall of barrel 20, is also protected from any aggression of the propeller 43 by the lateral surface of the ring itself 44.

In this way, it is possible to proceed to any desired mixing or kneading, without particular caution, despite the presence of the fragile bag 10.

The protective element can be of any type, other than ring 44 described. For example, it can be treated of a grid bell or with holes, or of several rings angularly outdated, the important thing being to allow movement of product B and simultaneously ensure the protection of the bag 10.

Claims (6)

1. Procedure for the use of viscous products, such as oils, greases, tars and bitumen, paints, putties and coatings, which foresees a sealed bag placed in a rigid outer shell, characterized in that a waterproof and flexible bag is chosen (10), of insufficient resistance for reuse and to resist the efforts due to the weight of the product (B) and / or the limitations of storage and transport, the bag (10) is placed freely, that is to say without fixing it, in a rigid barrel (20) and resistant of prolonged use but inadequate to contain the product (B) in a repetitive way, because it cannot be cleaned and totally released from the remains of product (B), barrel (20) that has a bottom (22), walls vertical (23) and an upper opening whose edge (24) is constituted by the end of the walls (23), the bag (10) is held in the barrel (20) so that its edge (12) exceeds the edge (24 ), the bag (10) is kept open, the product is poured u (B) in the bag (10) to a level lower than that of the edge (24), the edge (12) of the bag (10) is folded above the product (B) without closing the bag (10), and that, after its eventual storage, the full bag (10) - barrel (20) assembly is transported according to the orientation said assembly had during its filling, to a place of use of the product (B), where it is always left in it orientation, and that the folds of the bag (10) are separated to give access to the product (B) through the upper opening, product (B) is extracted once or several times by pumping, until the bag (10) is practically empty, the bag (10) is removed from the barrel (20), the crushed bag (10) is passed, from its bottom, into a calender (30) in order to extract from it the rest of the product (B ), said rest is collected in a container (34), the bag (10) is removed and the empty barrel (20) is sent to the place of placement of a new bag (10) in order to fill ar said new bag (10) and a new use. Method according to claim 1, characterized in that after folding the edge (12) of the bag (10), a cover (21) is arranged on the edge (24) of the barrel (20) to close it. 3. Method according to claim 2, characterized in that after transporting the assembly (10-B-20) to the place of use of the product (B), the lid (21) is removed, the folds of the bag are separated ( 10), at least one rigid rod (C) attached to a tube (D) that dips into the inlet of a pump is immersed in the product (B)

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whose output is connected to a flexible (F) equipped with a gun (G) or other means of distribution. 4. Container for the implementation of the process according to any one of claims 1 to 3, characterized in that the bag (10) especially of synthetic material, is waterproof, flexible, and has insufficient strength to be reusable and resist stress due to the weight of the product (B) and / or the limitations of storage and transport, and because the rigid and resistant barrel (20) is of prolonged use and has a bottom (22) and walls (23) limited by an upper edge ( 24) located in its extension, and whose height (h) is less than (H) of the bag (10), so that the edge (12) of the bag (10) is filled with product (B) and placed in the barrel (20) it can be folded over itself above the product (B) without closing or sealing, possibly associating the barrel (20) with a removable cover (21). 5. Container according to claim 4, characterized in that the barrel (20) is a metal barrel. 6. Container according to claim 4, characterized in that it is associated, on the one hand, with a mixer (40) which is provided with a protective element (44) of soft shapes, which must be interposed between the mixer (40) proper and the bag (10) and, on the other hand, a rod attached to a pump, so that the contents (B) of the bag (10) can be removed from the bag (10) by aspiration, without changing the orientation of the bag set (10) - barrel (20).