WO1997025155A1 - Outil d'application de masses pateuses - Google Patents

Outil d'application de masses pateuses Download PDF

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Publication number
WO1997025155A1
WO1997025155A1 PCT/US1997/000282 US9700282W WO9725155A1 WO 1997025155 A1 WO1997025155 A1 WO 1997025155A1 US 9700282 W US9700282 W US 9700282W WO 9725155 A1 WO9725155 A1 WO 9725155A1
Authority
WO
WIPO (PCT)
Prior art keywords
tubular bag
piston
tubular
chamber
emptying
Prior art date
Application number
PCT/US1997/000282
Other languages
English (en)
Inventor
Matthew J. Blain
Shailesh S. Bhat
John P. Malik
Henry W. Griffin
Hanspeter Landolt
Christian Meier
Original Assignee
Essex Specialty Products, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Essex Specialty Products, Inc. filed Critical Essex Specialty Products, Inc.
Priority to AU16937/97A priority Critical patent/AU1693797A/en
Publication of WO1997025155A1 publication Critical patent/WO1997025155A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00503—Details of the outlet element
    • B05C17/00506—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container
    • B05C17/00513—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container of the thread type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00503—Details of the outlet element
    • B05C17/00516—Shape or geometry of the outlet orifice or the outlet element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00553—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00576—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes characterised by the construction of a piston as pressure exerting means, or of the co-operating container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00576—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes characterised by the construction of a piston as pressure exerting means, or of the co-operating container
    • B05C17/00579—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes characterised by the construction of a piston as pressure exerting means, or of the co-operating container comprising means for allowing entrapped air to escape to the atmosphere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00583—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes the container for the material to be dispensed being deformable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00586—Means, generally located near the nozzle, for piercing or perforating the front part of a cartridge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/01—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/01—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like
    • B05C17/0103—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like with electrically actuated piston or the like

Definitions

  • the invention refers to a system for the application of pasty masses, such as adhesive materials.
  • tubular bags Today, sausage packages, tubular bags, are often used, instead of cartridges, to receive and store pasty masses.
  • the advantage of packaging in tubular bags is that they are produced economically, and are light. In addition, in terms of storage stability, they are superior to conventional cartridges.
  • a further advantage of tubular bags is that they take up little space when they are empty, since they can be folded to small dimensions. However, the difficulty in emptying these tubular bags resides in that, contrary to cartridges, tubular bags are not dimensionally stable. Thus, in order to be able to empty such a tubular bag safely and as completely as possible, a device must be created that is designed to solve the problems that arise when these tubular bags are emptied.
  • an adapter to hold tubular bags is known, by means of which the tubular bags are inserted into a commercial press-out pistol and emptied by the latter.
  • the adapter consists, in essence, of a tube-shaped cartridge, a press-out piston, a nozzle base part, and the applying nozzle itself.
  • To press out or empty the tubular bag it is inserted into the cartridge.
  • the cartridge itself is closed in the back by the press-out or emptying piston and on the front side by the nozzle base part, and closed with the applying nozzle in place.
  • the tubular bag is pressed out in the known, manual way by manually actuating a lever which, via a piston rod, pushes the piston forward.
  • the piston is V-shaped in the direction of displacement.
  • An adapter of this type is particularly suited to emptying relatively small tubular bags, filled with a low- viscosity mass.
  • the adapter is not suited for highly viscous masses and large tubular bags, since the necessary force cannot be generated with currently available emptying pistols.
  • the object of the invention is to create a repeatedly usable system for the application of pasty masses kept in a tubular bag, which is also particularly suitable for large tubular bags, is of low weight, readily usable and simple to handle.
  • a system for applying pasty masses comprising: a tubular bag containing a pasty mass; and a device for emptying said tubular bag and for dosedly applying the pasty mass, characterized in that: a) the system comprises a base unit which is provided with a hollow cylindrical chamber, the inner diameter of said chamber being essentially equal to the outer diameter of said tubular bag; b) the chamber is provided with a displaceable piston for emptying said tubular bag; c) means for actuating the piston are provided for; d) an extrusion arrangement for applying the pasty mass is provided for; and e) a sealing cap is provided for obturating the chamber and which can be fixed on said extrusion arrangement.
  • a two-stage nozzle arrangement which, in a first stage, has means to activate one of the components of a two-component mass and which, in a second stage, is equipped with means for homogeneously mixing the two components.
  • a device designed in this manner makes it possible to apply two- component masses that react only after leaving the tubular bag. In this manner, it is possible, for instance, to affect the hardening process of the applied mass in a defined way, or to accelerate it.
  • Figure 1 shows a first embodiment of a tubular bag.
  • Figure 1a shows a second embodiment of a tubular bag.
  • Figure 2 is a schematic representation of a device to empty tubular bags, in a side view.
  • Figure 3 sTiows an extrusion, nozzle, arrangement in a longitudinal section.
  • Figure 3a shows the extrusion arrangement, shown in a cross-sectional view along line A1-A1 of Figure 3.
  • Figures 4a and 4b show a two-part sealing cover in a longitudinal section.
  • Figure 5 is the insert of a nozzle arrangement in a view from the back.
  • Figure 5a shows the insert in a cross-section along line A-A in Figure 5.
  • Figure 5b shows the insert in a cross-section along B-B in Figure 5.
  • Figure 5c shows the insert in a cross-section along line C-C in Figure 5B.
  • Figure 5d is an enlarged section of Figure 5a.
  • Figure 6 shows a first intermediate part in a cross-sectional view.
  • Figure 6a shows the first intermediate part in longitudinal view.
  • Figure 7 shows a second intermediate part in cross-sectional view.
  • Figure 7a shows the second intermediate part in longitudinal view.
  • Figure 8 shows an emptying piston in longitudinal view.
  • Figure 9 shows the emptying piston in a snapshot, while emptying a schematically indicated tubular bag.
  • Figure 10 shows a second pressing piston in longitudinal section.
  • Figure 1 shows a first, and Figure 1a, a second embodiment of a tubular bag.
  • the tubular bag S in Figure 1 is closed on both sides by means of a clamp K1
  • tubular bag S1 in Figure 1a has a nearly flat bottom.
  • Such a tubular bag preferably built as a folding bottom bag, is closed by a clamp K1 , or is transversely welded on one side and on the other side shows a dimensionally stable connector St, welded to the bag bottom.
  • connector St has a circumferential collar Kr.
  • This collar Kr can be round, or have a contour that deviates from a circle, for instance, that of a polygon, a crown, or similar, which corresponds to the opening in the sealing cover.
  • the connector St has an outside thread.
  • a tubular bag S1 configured as shown in Figure 1a, there is the possibility of including a predetermined breaking point inside connector St.
  • a predetermined breaking point should tear open, or break open, in a defined manner at a predetermined pressure acting on tubular bag S1 , in such a manner that, inside connector St, an opening is generated,
  • connector St has a circumferential flange at its base, that overlaps tubular bag S1 on the inside and is there welded to the latter. This flange is indicated by means of broken lines on S1.
  • FIG. 2 schematically shows a lateral view of a system to empty a tubular bag.
  • the system essentially consists of a base unit 1 , and extrusion arrangement 2, a sealing cover 3, as well as a drive unit 4, designed to displace an emptying piston included in base unit 1 , but not visible in this representation.
  • Base unit 1 is formed by a tubular body, which inside has a hollow cylindrical chamber. This chamber houses the displaceable press-out piston. The internal diameter of the chamber is minimally larger than the outside diameter of the tubular bag it will contain, so that the latter is form-fittingly enclosed by the base unit during emptying.
  • Base unit 1 has external threads at both extremities.
  • Drive unit 4 is designed as a module and has a casing section 5 at the underside of which is arranged a handle 7, equipped with a means of activating the drive unit, such as a trigger (8) (activation organ).
  • the drive unit module 4 may comprise an electromotor assembled with a coupling means.
  • casing section 5 is included an electric motor, as well as its coupled transmission.
  • the transmission is coupled to a toothed rack which, in turn, is actively connected to the press-out piston.
  • the toothed rack is indicated in outline and has the reference number 11.
  • a power source such as a battery, 9 is provided to store the energy to activate the electric motor and thus, to displace the piston; it can be attached to the underside of handle 7.
  • a clutch is provided to establish a non-positive connection between the electric motor and toothed rack 11 or the piston, respectively.
  • This preferably electromechanically actuated clutch couples automatically when activation organ 8 is depressed, while it decouples automatically as soon as activation organ 8 is released.
  • the electric motor is also activated.
  • the clutch is decoupled in such a way that the piston can be manually pulled back to its starting position via toothed rack 11. This is useful, in that the piston can be manually pulled back to its starting position once a tubular bag has been completely emptied. Since such driving means are known in principle, it would be redundant to enter into greater detail on their design.
  • Figure 3 shows extrusion (nozzle) arrangement 2 in a longitudinal view and Figure 3a, shows it in a cross-section along line A1-A1 in figure 3.
  • Extrusion arrangement 2 was designed for the activation of a two-component mass, in which one of the components is integrated into the other in encapsulated form.
  • An example of a two-component mass could be an adhesive, in which the encapsulated component would accelerate the hardening of the adhesive bead applied.
  • extrusion arrangement 2 includes an insert 20 which will be described hereinafter.
  • the extrusion arrangment 2 has a body 14 with a rear section 15 designed in the shape of a funnel, while the front section 16 essentially is shaped like a hollow cylinder.
  • a removable piece 17 is provided. The end of this has a V-shaped recess 29. Due to this V-shaped recess 29, the adhesive is applied in the form of a bead.
  • the front piece 17 is attached with the aid of a quick coupling connection 18 to the cylindrical section 16 in such a way that, when needed, it can be removed by a rotary movement.
  • an annular shoulder 19 is provided on the back section 15 of nozzle body 14.
  • FIGs 4a and 4b show a two-part sealing cover in a longitudinal section, where the two parts of the sealing cover, as well as the extrusion arrangement per Figure 3, are sketched in the position in which they fit together.
  • the sealing cover consists of a first part 31 , designed as a swivel nut.
  • This swivel nut 31 has an inner thread 32, on one side, that corresponds to the outside thread at the front end of the base unit.
  • On the other side of swivel nut 31 there is an easily removable, for instance, screwed-down, extension 34, which has an outer thread 33.
  • a front face 35 of this extension 34 serves to support the extrusion arrangement 2.
  • the second part of the sealing cover is designed as a screw-sleeve 37, which has a central opening 39 to receive the extrusion arrangement.
  • Screw-sleeve 37 in addition, has an inside thread 38 that corresponds to outside thread 33 in extension 34 of swivel nut 31. While swivel nut 31 serves to axially support the extrusion arrangement in the direction of the base unit, the extrusion arrangement can be fixed to swivel nut 31 by means of screw-sleeve 37 on its shoulder 19.
  • the insert 20 of the extrusion arrangement 2 will be explained in more detail with the aid of Figures 5 to 5d.
  • the insert 20 which serves to break up the capsules and mixing the components, consists of a back breaking-up arrangement 21 and a front mixing element 23.
  • the back breaking-up arrangement 21 has a number of annular baffles 22 which delineate passage openings in the form of slit 25.
  • Star- shaped struts 24 are provided for supporting baffles 22. It can be seen from Figure 5d that the baffles 22 have an essentially triangular profile when looked at in cross- section, as a result of which a conically narrowing inlet region E is formed, which is followed by the passage openings 25.
  • the width of the passage openings 25 between each baffle 22 is chosen so that they are narrower than the statistically averaged outside diameter of the capsules, preferably smaller than x - ⁇ , where x is the arithmetic mean value and ⁇ is the standard deviation. Due to this design, it is achieved that the majority of the capsules are broken up when they pass through baffles 22 so that the enclosed component is liberated.
  • the aperture angle ⁇ of this intake area E is preferably 120°or less, more preferably 60° or less, even more preferably 30° or less and most preferably 20° or less.
  • the angle is preferably 5°or greater and most preferably 10° or greater.
  • the front mixing element 23 of insert 20 serves to achieve homogeneous mixing of the liberated component with the other components.
  • the actual mixing elements are slanted small plates 26 supported on bridges 24; the small plates have slits 27.
  • the two components can enter from the back conical section 15 of the nozzle arrangement into the front, cylindrically shaped section 16 of the nozzle arrangement through slits 27 ( Figure 3). Based on the arrangement and design of these small plates 26, homogeneous mixing of the two components is achieved.
  • the pressure drop of such a mixing element is very low in comparison to the conventional mixers in which a number of mixing wings are arranged one after another.
  • mixing plates 26 can be adapted to the specific two-component mixture used.
  • mixing plates 26 shown here any arbitrary variation of mixing elements is conceivable, for example, mixing wings or wound bridges.
  • Figure 5a shows a first intermediate member 40 in a cross-sectional view
  • Figure 5b shows the intermediate member in a longitudinal view.
  • These intermediate members are introduced between the tubular bag in the base unit and closing cover of the pressing device (piston) intended to protect the base unit as well as the sealing cover from contamination by the mass coming out of the tubular bag.
  • the first intermediary member 40 shows an area essentially designed as a hollow cylinder 41. The foremost area is designed in such a way that when the intermediary member 40 is inserted into the system, it protrudes into the extrusion arrangement.
  • Such intermediary members 40 is used especially in conjunction with tubular bags that have no connector in the outlet area. For instance, the intermediary member can be inserted into the sealing cover, before it is fixed to the base unit. Another variant would be to push the end of intermediary member 40 onto the opened tubular bag, or to fix it directly onto the tubular bag.
  • Figures 7 and 7a show a second intermediate piece 43, which is provided, in addition, with the multiplicity of protrusions 45, 46, and the ends of which are designed as knife edges.
  • This intermediate piece 43 is also introduced between the tubular bag placed in the base body and the closing cover of the pressing device. Due to these cutting edges 45, 46, the tubular bag is broken up in a defined manner as soon as a certain force is applied on it.
  • the protrusions 45, 46 are supported on narrow strutting 47, 48, between which large areas remain free through which the material leaving the tubular bag can arrive into the nozzle arrangement.
  • Such intermediate pieces 40, 43 are especially used together with tubular bags which have not attachments in the discharge region.
  • the intermediate piece can be placed into the closing cover before this is attached to the base body.
  • Another variant would consist in attaching the intermediate piece 40, 43 at the end on the opened tubular bag or directly on the tubular bag.
  • an extrusion arrangement is preferably used that has an inner thread in its rear section St. Such an extrusion arrangement can be screwed onto the tubular bag's connector.
  • a single-part sealing cover has been designed, with a central opening that corresponds to the contour of collar Kr ( Figure 1 a), such that the opening or, respectively, the collar's contour, is shaped like a polygon.
  • the connector's collar is shaped as a polygon, then the tubular bag and, with it, the tightly connected extrusion arrangement are protected against rotation in the sealing cover.
  • the contour of the opening in the sealing cover and the shoulder of the connector can be octagonal in shape. This makes it possible to rotate the tubular bag, together with the extrusion arrangement, in steps of 45° at a time.
  • the minimal angle of rotation becomes smaller, as the number of sides on the polygon increases.
  • the possibility of rotating the extrusion arrangement may be important, in connection with the recess in the nozzle tip, since the position of this recess is important to the strand being applied, or to its shape.
  • Figure 8 shows a longitudinal section of a possible embodiment of a press-out piston 50 to empty tubular bags.
  • Base unit 1 is shown in Figure 2, in which piston 50 is located in a displaceable manner.
  • the press-out piston 50 has a cylindrical section 51 with a shoulder at the front end.
  • On the foremost face side of press-out piston 50 there is an axial, cylindrical extension 52, designed to accept disk 60 provided with a central opening.
  • the outside diameter of disk 60 is at least as large as the outside diameter of the tubular bag, but only negligibly smaller than the inside diameter of the base unit.
  • cylindrical extension 52 has a central bore 53, which serves to receive the clamp attached at the end side of the tubular bag.
  • Press-out piston 50 furthermore, has a radial extension 54 that runs diagonally outward, the size of which corresponds at least approximately to the inside diameter of chamber 13, limited by base unit 1. Furthermore, the outward tapering extension 54 can have radial incisions which, however, cannot be seen in this illustration. By means of such incisions, a series of individual, springy tongues are formed that can fit miscellaneous irregularities in the base unit's internal contour. In the area of the back end of piston 50, there is a circumferential shoulder, into which a groove has been inserted to receive a sealing ring 56. The toothed rack 1 1 provided to displace piston 50 has been drawn in as outlined.
  • Figure 9 shows a piston in accordance with Figure 8, in a snapshot, while emptying a schematically indicated tubular bag S.
  • the tubular bag end closed by clamp K1 is housed inlhe central bore 53 of press-out piston 50.
  • Tubular bag S is emptied by the displacement of press-out piston 50.
  • the tubular bag wrap H is squeezed and pressed out between ring 60 and the walls of base unit 1.
  • the press-out piston is moved forward, the emptied tubular bag wrap H is folded, on the side oriented towards the longitudinal central axis M of press-out piston 50, of the inclined extension 54. Ring 60, pushed over extension 52 of piston 50, prevents the tubular bag wrap from lying snugly over press-out piston 50 or, respectively, over its cylindrical portion 51.
  • FIG. 10 shows another variation of a pressing piston 62. Piston 62 is provided with a recess 65 on the side facing the tubular bag. This serves for accepting the folded tubular bag.
  • piston 62 has a lip 63 which is V-shaped when looking at the cross- section; this lip goes all around. Furthermore, a central extension 64 is provided I which the piston rod 11 is anchored, the extension 64 narrows toward the front and protrudes above lip 63 in the longitudinal direction. Both extension 64 as well as lip 63 pas into recess 65 of piston 60 through rounded surfaces r, R. This design insures that the empty folded tubular bag can be removed - pulled - from the extension 64 without any strong force being necessary.
  • a pneumatically activated piston could also be used, for instance. In this case, the toothed rack would not be necessary.
  • the piston could, for instance, be equipped with a hook, to which a cable control could be attached, and guided out of the systems casing.
  • a stop motion device like an eyelet, for instance, could be provided at the end of the cable control, to limit the piston's forward motion. This could be necessary also when the piston is pneumatically activated without tubular bags inserted, and/or without the sealing cover in place. In addition, this stop motion device is also recommended to pull back the piston.
  • a pneumatically activated piston it is also recommended to close the axial passage, for instance, by means of a pressure control valve. For this case, a drain valve could be installed. To be able to see the level of the tubular bag from the outside, it could be advantageous to place appropriate markings on the toothed rack or the cable control.
  • the sealing cover Before introducing a tubular bag into the system, the sealing cover is removed and the sealing piston is manually pulled back to its starting position, by means of the toothed rack. After that, the tubular bag can be inserted into the system's base unit and the extrusion arrangement attached to the base unit by means of the sealing cover.
  • the tubular bag is emptied by depressing the activation organ on the handle, whereby the electric motor or, respectively, the transmission, is coupled through the clutch with the toothed rack and the piston is displaced forward. As soon as the force exerted by the piston on the tubular bag exceeds a certain value, the tubular bag tears in a defined manner at the predetermined breaking point.
  • the pasty mass is thus able to exit the tubular bag and can be applied at the desired location through the extrusion arrangement. Once the desired quantity of the pasty mass has been applied, the process is stopped by releasing the activation organ. This interrupts the connection between the electric motor and the toothed rack, which immediately stops the exit of the pasty mass, since force is no longer exerted on the press-out piston via the toothed rack and, hence, on the tubular bag, rather relieving the latter.
  • the application nozzle would normally have to be replaced, since it is filled with the meanwhile hardened mass. After this replacement, the process can be continued. If the degree of hardening of the applied mass has to be checked, then the tip of the extrusion arrangement can be separated at the location designed for this, permitting verification of the degree of hardening of the pasty mass in the range of the separated nozzle tip. Testing the hardening process in this manner is very realistic, since the diameter of the nozzle tip in the separated area corresponds approximately to the thickness of the strand applied.
  • a system like this is particularly suited to emptying tubular bags with a content of approximately 300 mL or greater, more preferably 450 mL or greater and most preferably 1 liter or greater to 3 liters.
  • the system constitutes an easily handled press-out pistol, by means of which the most diverse pasty masses can be applied.
  • the system can, for instance, be used to apply a bead of adhesive at the time a vehicle window is installed or replaced Since such a system constitutes an autonomous, mobile unit, it is also suitable for on-site utilization
  • electric resistance heating can, for instance, be provided, attached to the outside of the base unit, to heat the base unit, together with the tubular bag inserted in it, to a preset temperature. It is obvious that such a resistance heater will be equipped with a power cord so that, when needed, it can simply be connected to a power source, or disconnected from it, respectively Heating bags or heating boxes are also conceivable, which would keep the entire system or, respectively, one or more tubular bags, at a predetermined temperature, until their use
  • the press-out piston in the system could be activated electrically, manually or pneumatically, as already suggested.
  • a pressure tank filled with a fluid medium under pressure could be provided inside the system, that could be filled externally, which, when activated, applies pressure to the sausage pack.
  • a different power transmission organ, such as a spindle could be chosen
  • the extrusion arrangement could be equipped with a means in disk form, instead of using baffles, which would have arc-shaped or circular slots.
  • a perforated plate is also conceivable.
  • static elements as represented by the baffles, dynamic elements could be used, such as rotating propellers, turning rollers, or similar elements.
  • tubular bags equipped unilaterally with connectors that are not threaded can also be used for emptying tubular bags which contain a one-component material
  • the use of the nozzle arrangement can be omitted

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

L'invention porte sur un outil d'application de masses pâteuses à deux composants stockées dans des sacs tubulaires, consistant: en une unité de base (1) pourvue d'une chambre cylindrique creuse et, en position distale, d'un dispositif d'extrusion (2) muni d'un moyen d'activation de la masse à deux composants; en un piston presseur, éventuellement à commande électromagnétique, servant à expulser la masse du sac, placé dans l'unité de base (1), et comportant un évidement destiné à recevoir le sac vidé. Pour faciliter l'extraction du sac tubulaire pliée, il est prévu un anneau pouvant être poussé sur le piston de manière à empêcher l'enveloppe du sac d'adhérer légèrement à l'évidement. On peut ainsi retirer du piston le sac tubulaire et l'anneau sans grand effort.
PCT/US1997/000282 1996-01-11 1997-01-03 Outil d'application de masses pateuses WO1997025155A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU16937/97A AU1693797A (en) 1996-01-11 1997-01-03 System for applying pasty masses

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US970796P 1996-01-11 1996-01-11
US60/009,707 1996-01-11

Publications (1)

Publication Number Publication Date
WO1997025155A1 true WO1997025155A1 (fr) 1997-07-17

Family

ID=21739260

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/000282 WO1997025155A1 (fr) 1996-01-11 1997-01-03 Outil d'application de masses pateuses

Country Status (2)

Country Link
AU (1) AU1693797A (fr)
WO (1) WO1997025155A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000053512A1 (fr) * 1999-03-05 2000-09-14 Leif Einar Stern Dispositif de decharge d'un produit de type pate d'un conditionnement en matiere souple et conditionnement adapte pour etre utilise en liaison avec ledit dispositif
WO2000076676A1 (fr) * 1999-06-15 2000-12-21 Createchnic Ag Organe d'ouverture automatique jetable pour ouvrir une cartouche a sachet tubulaire et faire sortir une matiere pateuse de cette derniere
EP1607142A1 (fr) * 2004-06-14 2005-12-21 Sika Technology AG Dispositif de distribution d'un matériau façonnable
DE102012110818A1 (de) * 2012-11-12 2014-05-15 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Vorrichtung und Verfahren zum Auftragen eines pastösen oder hochviskosen Mediums
DE102007060382B4 (de) * 2007-12-12 2015-01-29 Henkel Ag & Co. Kgaa Aufschneidvorrichtung zum Öffnen eines Schlauchbeutels
WO2020028484A3 (fr) * 2018-07-31 2020-03-05 Red Devil, Inc. Système et procédé de distribution de matériau

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3826580A (en) * 1971-09-13 1974-07-30 Us Navy Adhesive dispenser
GB2186544A (en) * 1985-12-20 1987-08-19 Chemence Ltd Collapsible container and caulking gun for storage and dispensing or sealant composition
EP0279922A1 (fr) * 1987-02-11 1988-08-31 Friedhelm Schneider Pistolet de dosage pour matières liquides ou pâteuses
CH669165A5 (en) * 1986-03-21 1989-02-28 Sika Ag Dispenser of paste-like product - has rigid cylindrical housing to receive product which is enclosed in flexible bag
US4986444A (en) * 1989-05-09 1991-01-22 Dominique Corso Guns intended for extruding pastry products
DE4042065A1 (de) * 1990-12-28 1992-07-02 Friedhelm Schneider Dosierpistole fuer schlauchbeutel mit hochviskosem inhalt
DE9210904U1 (de) * 1992-08-14 1992-11-12 Schneider, Friedhelm, 5226 Reichshof Dosierpistolen für Schlauchbeutel mit Spreizscheiben und hydraulischer Betätigung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3826580A (en) * 1971-09-13 1974-07-30 Us Navy Adhesive dispenser
GB2186544A (en) * 1985-12-20 1987-08-19 Chemence Ltd Collapsible container and caulking gun for storage and dispensing or sealant composition
CH669165A5 (en) * 1986-03-21 1989-02-28 Sika Ag Dispenser of paste-like product - has rigid cylindrical housing to receive product which is enclosed in flexible bag
EP0279922A1 (fr) * 1987-02-11 1988-08-31 Friedhelm Schneider Pistolet de dosage pour matières liquides ou pâteuses
US4986444A (en) * 1989-05-09 1991-01-22 Dominique Corso Guns intended for extruding pastry products
DE4042065A1 (de) * 1990-12-28 1992-07-02 Friedhelm Schneider Dosierpistole fuer schlauchbeutel mit hochviskosem inhalt
DE9210904U1 (de) * 1992-08-14 1992-11-12 Schneider, Friedhelm, 5226 Reichshof Dosierpistolen für Schlauchbeutel mit Spreizscheiben und hydraulischer Betätigung

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000053512A1 (fr) * 1999-03-05 2000-09-14 Leif Einar Stern Dispositif de decharge d'un produit de type pate d'un conditionnement en matiere souple et conditionnement adapte pour etre utilise en liaison avec ledit dispositif
US6598764B1 (en) 1999-03-05 2003-07-29 Leif Einar Stern Device for discharge of a paste-like product from a package of flexible material and package adapted for use in connection with said device
WO2000076676A1 (fr) * 1999-06-15 2000-12-21 Createchnic Ag Organe d'ouverture automatique jetable pour ouvrir une cartouche a sachet tubulaire et faire sortir une matiere pateuse de cette derniere
US6564970B1 (en) 1999-06-15 2003-05-20 Createchnic Ag Disposable self-opener for opening a tubular bag-cartridge and for pressing out a pasty material from the latter
EP1607142A1 (fr) * 2004-06-14 2005-12-21 Sika Technology AG Dispositif de distribution d'un matériau façonnable
WO2005120721A1 (fr) * 2004-06-14 2005-12-22 Sika Technology Ag Dispositif et procede pour distribuer un materiau a traiter
WO2005120720A1 (fr) * 2004-06-14 2005-12-22 Sika Technology Ag Dispositif et procede de distribution de materiau a traiter
JP2008502468A (ja) * 2004-06-14 2008-01-31 シーカ・テクノロジー・アーゲー 処理用材料の放出のためのデバイス及び方法
DE102007060382B4 (de) * 2007-12-12 2015-01-29 Henkel Ag & Co. Kgaa Aufschneidvorrichtung zum Öffnen eines Schlauchbeutels
DE102012110818A1 (de) * 2012-11-12 2014-05-15 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Vorrichtung und Verfahren zum Auftragen eines pastösen oder hochviskosen Mediums
WO2020028484A3 (fr) * 2018-07-31 2020-03-05 Red Devil, Inc. Système et procédé de distribution de matériau

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