DE2001079A1 - Multi-way spray head with gas capsule for emptying pressure vessels, closed with multi-way valves - Google Patents

Description

D e c e r i n g e Multi-way spray head with gas capsule for emptying of pressure vessels, closed with multi-way valves.

Pressure packs, known as aerosol cans (hairspray etc.), are out It is hard to imagine the retail product range without it - with growing sales The aerosol can is primarily used for cosmetic and technical special products and used for household sprays. Use in the second and third groups However, the products packed in aerosol cans are relatively expensive because only half of the filling space of the aerosol can can be used for the product Especially household and food aerosols keep a price comparison to conventional packaged goods did not stand.

In addition, technical filling problems make it difficult for various products Aerosol fillings, although they were well suited as sprays. Technical problems with filling lie e.g.

in the incompatibility between filling product and propellant.

The industry has tried to develop cans (two = chamber cans) This problem has been eliminated. However, these systems have been able to evolve to this day for price and functional reasons not enforce.

In addition, attempts have been made to reduce the high packaging costs because Liquid gas has been replaced by C02. However, C02 is not used limited for various reasons, e.g. pressure drop.

So the task of development was to find a system, the one causes considerable reduction in packaging costs, eliminates general filling problems and the elaborate aero = sol filling plants are unnecessary, with the purpose, then everyone Her = Establishment of the food, dairy, chemical or pharmaceutical industries without purchase investment-intensive aerosol filling systems and without the use of aerosol = filling, the filling of its products (without gas admixture) in spray packs Existing filling systems (height and metering fillers) of the most varied Brands can be used if a valve clincher is assigned.

This filling has the advantage that in addition to the 100% use of the volume the spray cans on the transport and during storage not under gas pressure There is no risk of explosion due to increased temperature.

A perfect spray pattern of the spray products is ensured by constant Gas pressure, which only occurs when the can is used by a special spray head is introduced.

Example no. T In order to fill 500 ccm of product, konventio = nellen filling method, 2 cans with a volume of 500 ccm each are required.

The container contents result from: 250 com for product 140 ccm for Liquid gas 110 ccm for expansion space) Empty space) Price per 500 ccm aerosol can with 250 ccm product content can 2 x 0.24 DM = 0.48 DM gas 2 x 0.40 DM = 0.80 DM valve + Cap 2 x 0.15 DM = 0.30 DM Prod. 2 x 0.80 DM = 1.60 DM filling cap. 2 x 0.110 DM = 0.20 DM 3t38 DM filling costs are higher for aerosol cans. Large machines = investments Etc.

Price for BAL can with 500 ccm can 1 x 0.24 DM = 0.24 DM -------------------- 0.00 DM valve + cap 1 x 0.10 DM = 0.10 DM Prod. = 1.60 DM filling costs = 0.03 DM 1.93 DM With the BAL system packaging = costs around 40% less.

Use of existing filling system example no. 2 cream jar from X.

350 ccm can 0.30 DM vent., Cap 0.18 DM 220 ccm cream 0.66 DM, outlet N20 0.15 DM 1.29 DM cream can according to BAL 350 ccm can 0.30 DM vent., Cap 0.10 DM 350 ccm cream 1.00 DM filling 0.03 DM 1.33 DM with 59% more product content = 1.8% Additional costs example no. 3 filling 220 ccm from X.

Can 350 ccm 0.30 DM cream 220 ccm 0.66 DM vent., Cap 0.18 DM outlet N20 0.15 DM 1.29 DM BAL-Systew = 25§ cheaper filling 220 ccm after BAL can 220 ccm 0.18 DM cream 220 ccm 0.66 DM vent., Cap 0.10 DM filling 0.03 DM 0.97 DM Fa. X. = 33% more expensive The profitability of this packaging system has been proven on the basis of the above calculations.

The favorable relationship is achieved by the fact that the known aerosol container closures thanks to a structurally simple and at the same time very inexpensive multi-way Replaces container closure and at the same time a special spray head for this valve was developed to allow emptying of a can that is 100% full with product constant pressure of 7 atm using a C02, N or N20 capsule.

This spray head is designed so that it revolves for the most varied Products used and can be used and removed as often as required. A gas or There is no product loss because the gas path in the spray head and valve, as well as product paths only open at the same time when the product is removed.

The gas capsule is arranged to be exchangeable.

The yield of one gas capsule is sufficient for approx. 1.5 - 2 liters of spray product (Comparison: 4 Ds. 18 oz or 12 Ds. 6 oz).

The functioning of the BAL system is shown in the attached figures 1-10 explained.

FIG. 8 shows a pressurized can (19) closed with a special container closure (1) with multi-way valve openings (2 and 3) and screwed-in spray head (4) with Opening = organ (6).

The opening element (6) Fig.8 used in the spray head (4) is shown in Fig.5 in section with non-return valve (8) reducing valve (17) and arranged gas capsule (9) The gas capsule is fastened to the opening element (6) with a screw cap opens mandrel (10) gas capsule (9) The gas pressure of the capsule (9) fills the gas path (11), but can not escaped from opening element (6) due to separate check valve (8) The opening element (6) is actuated vertically by the lever (12) on the spray head (4) (13) of the opening element (6) corresponds to the gas path (2) in the container closure (1), while seal (7) on the opening element (4) gds and liquid-tight separation acts on the product path (3) and serves to open the container closure (1).

The bore (14) in the spray head (4) provides the connection between the product path (3) in the valve (1) and the product path (15) in the spray head (4) Reduction valve (17) in the opening element (6) enables in connection with non-return valve (8) and gas metering groove (18) on the valve pin (13) ensure an even pressure build-up in the container (19).

For the production of foam products (whipped cream) are in the spray head (4) Bores (20) with atmospheric connection arranged. Fig. 6 shows in section the arrangement of the bores 14 and 20 to each other. This has the effect that after the Venturi or Water jet pump principle, air is supplied to the product, uniform distribution the supplied air takes place in a semicircle in the ring groove when it collides (21) Fig. 3 guided liquid in front of the product path = opening.

In addition, baffles in the form of a coarse-pored can in the product path (15) Tissue are introduced.

In Fig.9 and 10 a one-piece spray head (4) is Darge = represents the inserted into the valve opening of the container closure (1) in a liquid-tight manner and is actuated vertically by finger pressure. Fig. 9 shows the top view of spray = head (4) with hatched gas and product routes.

The formation of the opening member (6) in Fig. 10, a = screwable arranged, allows small dimensions. The opening element (6) is at its upper End with a groove ring (21) and a sealing plate (22) for gas-tight separation of product path (14) and gas path (11), which opens into groove ring (21), provided Pressing down the opening element (6) causes a press seal (7) for gas and liquid tight separation of the valve paths (2u.3). Here valve path (3) is opened, while at the same time Opening of the non-return valve (8) by means of the valve pin (13) in the opening element (6), so that gas via path (2) into the container and product via path (14) at the same time The hose seal (23) closes the valve opening (2) to the outside and is lifted off by the incoming gas.

11-13 is a three-way container closure (1) with the Valve paths (2-3-5) and a three-way spray head (4) with the paths (11-12-24) shown in connection with an active ingredient bag. Through this valve and spray = With the head construction it is possible to put two chemically reacting products in one pressurized can, e.g. isocyanate and polyol, which are used to manufacture polyurethane foams The bag (26), preferably made of composite film, separates the Products.

The three-way container closure is preferably designed as a double membrane valve (16-28) to to get as flat a design as possible. The spray head is designed so that the three ways (11-14-24) in the opening element (6) with the three valve ways (2-3-5) of the double diaphragm (16-28) correspond and that the lower end of the opening element (6) Fig.

13 is designed so that a gas- and liquid-tight seal the three ways, nei the product removal, is effected.

With finger pressure, the spray head (4), which is in the container = terverschluß (1) is inserted, pressed down. The lower end of the opening element (6 (, the in the spray head (4) a screw is arranged, lies under the seal of the three ways gas- and liquid-tight on the diaphragm plate (27). The large diaphragm (28) of the container closure (1) and the small membrane (16) are facing down so that the valve paths (2-3) open and the valve pin opens at the same time (13), the check valve (8) opens, gas path (5).

The gas pressure in the channel (11) enters the container and acts on it the liquid level and thus also the liquid in the bag (26) with pressure The liquids are introduced through valve (5) Gas pressure Via valve paths (2-3) and the bores (14-24) in the annular groove (21) Fig. 12 to the product path (15) The mixing of the chemically reacting products takes place due to the collision of the media in front of the product path (15), up to the outlet opening there is no contact between the chemically reacting products and therefore no possibility of gelation in small material sizes.

The membrane (16) is designed in such a way that it has a pot-like depression in the center to accommodate the gas valve (5). The crown-like formations (25-29) are used to attach the valve (5) and the diaphragm (16) to the diaphragm (16) a riser pipe (30) is provided for the second product to the bottom of the container while the first product is emptied from the bag (26).

Claims (9)

A n 5 p r ü c h e Multi-way spray head with gas capsule for emptying pressure vessels , closed with multi-way valves (preferably = preferably membrane valves), thereby characterized that xwe spray head two or three separate gas u. has liquid-tight paths, which with valve paths of the container closure correspond and with pressure and relief a simultaneous opening and closing causes all valve paths in the container closure and spray head and thereby simultaneous Product removal and metered gas supply made possible. 2. Apparatus according to claim 1 characterized in that it is multi-path Valve made of a perforated disc (33) with at least one or more circumferential Annular grooves (34) Fig. 14 is seen, in conjunction with one or more Diaphragms (16 + 28) with arranged hose holders form the valve housing. 3.Vorrichtung according to claim 1 and 2, characterized in that the spray head (4) and opening member (6) detachable (Fig.8) from = each other form a unit. 4. Apparatus according to claim 1-3 characterized in that optionally Spray head (4) or opening element (6) with their ############### bores (14 + 24) have paths corresponding to valve openings (2 + 3) (Fig. 10, Fig. 1}), the means of a seal (7) Fig.15,13, at the end of the opening member (6) a gas u . Liquid-tight separation of each other causes. 5. Apparatus according to claim 1-4 characterized'daß in the opening member (6) working against each other, a spring-loaded pressure relief valve (17), which in connection with check valve (8) and the metering groove on the valve opening pin (13) (18) when opening the check valve (8) causes a gas jam in the gas path (11), which leads to the closure of the pressure relief valve (17) when the non-return valve is open (8) and thereby opens and closes intermittently, a critical one Pressure = prevented from building up inside the can, whereby dosing groove (18) and product opening (smallest cross-sections) are brought into a relation, so that this arrangement very small dimensions can be achieved. 6. Apparatus according to claims 1-5 characterized in that gem.Fig.10 and 11 opening element (6) arranged in the spray head (4) so that it can be screwed or inserted and is provided at its upper end with a sealing plate (22) which is connected in Ver with the spray head (4) forms a groove ring (21) which connects the separate product paths (54,24) Fig. 1-1 causes the outflow opening (15). 7. Apparatus according to claim 1-6, characterized in that on Opening element (6) Fig. 5 or on the spray head (4) Fig. 10., 1 1 optionally a gas regulating screw (32) arranged in front of or behind the reducing valve, an enlargement or reduction of the gas cross-section and thus the build-up of pressurized gas in the can. 8. Apparatus according to claim 1-7, characterized in that the three-way valve optionally made of a double diaphragm valve, each with an eccentric one Product path is provided and the membranes each have a crown-like annular groove (34) with axially arranged gas path in both membranes #############. 9. Apparatus according to claim 1-8 characterized gel <indicates that Bores (20) have atmospheric connection and so to the bores (14 and 24) are arranged so that a vacuum is created by the flow of liquid, air is sucked in, mixed in and through the annular groove (21) on separate paths in front of the discharge opening (15) to be led.