EP0019029B2 - Device for simultaneous dispensing of pasty masses, in particular fillers or cement, and hardeners from containers shaped like a tin - Google Patents

Description

The invention relates to a device for the simultaneous and metered dispensing of viscous masterbatches, in particular fillers or putty, and hardener pastes made of canshaped containers containing a displaceable press lid and provided with closable outflow openings on the bottom, with or without a support bracket attached to the container wall, consisting of a designed as a U-shaped support bracket, the plate-like centering brackets for the can-shaped container and a squeezing device with simultaneously operable piston rods with end-arranged piston plates displaceable in the interior of the can-shaped container in the direction of the centering bracket, the containers having a cross-sectional shape and dimensions that correspond to those of the centering bracket, which are arranged on the lower bracket leg of the support frame. A bracket for such a device is known from JT-A-384936.

A fixed dispenser is known from US-A-3 957 176.

It is often perceived as a disadvantage that in particular can-shaped multi-kilogram containers, which contain viscous masses, in particular fillers and putties, cannot be completely emptied in some cases, and if so, then only with a considerable amount of work and with additional equipment, such as spatula or the like, but is avoided, so that residues of the container contents remain in the containers, which are then thrown away.

Added to this is the laborious handling of the container contents in some versions, which is due to the high viscous consistency of the mass. In addition, it is perceived as a disadvantage in some versions that the master paste and hardener paste are always applied on a spatula in such a way that the two compounds must then be mixed.

Since the outlet openings of the receptacles for the filling compound and for the hardening paste are in some cases quite far apart, some of the masses to be mixed can flow past the spatula, which has relatively small dimensions.

A hand-held dispenser for two-component materials with cartridges containing disposable material, disposable mixing head and disposable connecting lines is known from DE-A-2 537 022. This dispenser is comprised of a pair of cartridge receiving sleeves that are open at opposite ends to receive the material containing and dispensing cartridges through one end, the other end of the cartridge extending through the opposite end of the sleeve, and a cartridge piston in the area of one Liner end is arranged by a piston assembly with a pair of piston heads, which are provided at the ends of a pair of piston rods and connected to each other for simultaneous movement and a base assembly for fastening the double piston assembly to bring the piston heads to the cartridge pistons in the working position, by a mixing head attachment and holder assembly for releasably attaching and holding the mixing head, wherein the two cartridges, the mixing head and the connecting lines for metering, mixing and dispensing the two-component materials are connected to the dispenser and can be removed after use for re-use Use of the device with replacement cartridges, a replacement mixing head and replacement connecting lines, characterized by which a manageable, portable mixing and dispensing device is to be created, with which a large number of two-component materials in larger quantities than previously easily dispensed from a single cartridge each , can be mixed and dispensed, which should give the possibility of using inexpensive, disposable cartridges and other associated disposable components in this device, which are provided in the form of a kit for repeated use with the manageable device.

The known hand-held dispenser for two-component materials has, in particular, an embodiment according to which two pipe socket-like receiving chambers for the cartridges to be used are provided in a holder, and after the cartridges have been inserted into these receiving chambers, they are hinged to a carrier plate Brackets are pivoted so that the cartridges are in the feed path of the plunger. The outlet openings of the cartridges or of the holders receiving the cartridges are connected via pipes to an output nozzle which is designed as a disposable nozzle and is replaced by a new nozzle after use.

A disadvantage of this known dispensing device is that after the cartridges have been emptied, the mixing heads used are filled with fillers and hardener paste deposits, which crust or harden when the device is not used for a long time, so that the mixing head must then be replaced.

In addition, in this known dispenser for two-component materials, the lines for forwarding the mass to be pressed are not arranged on the support frame, but rather on the opening projection of the container itself, so that the problem of sealing between the support frame and container does not arise. Likewise, the problem does not arise here if the containers release their extrusion mass directly without the interposition of another line.

A device for holding a container with the filling device provided on the bottom part thereof for dispensing the contents of the container can be found in the aforementioned US Pat. No. 3,957,176. This known device has a stand frame with two mutually parallel support rods as a support for the container. Lateral stops limit the container placed in this way, which is secured in position by means of a locking screw. The contents of the container are dispensed using compressed air. For this reason, the lid part of the container has a firm and airtight connection for the required pressure line, while the bottom part of the container is provided with an opening designed as a threaded connection as an outlet opening. A disadvantage of this known device is that the filling device must be connected to the container to be emptied in the region of its outlet opening in the base part. Since the filling device is attached to the bottom part of the container, aligning and centering the container on a filling device fixedly attached to the support frame is not necessary, since this is part of the container. According to this, the filling device used is not an integral part of the device carrying the container, but rather represents a special part which has to be placed on the peripheral edge delimiting the outflow opening when the container is started up. Viscous fillers can only be pressed out of a container or cartridge using high pressure. The larger the size of the container, the greater the pressure to be applied. A filling device, which is only placed on the edge delimiting the outflow opening, can easily leak in the connection area, in particular when high pressures have to be used to squeeze out the contents of the container. If, on the other hand, the filling device is attached by means of a screw thread to the bottom part of the container, then a relatively large amount of work is required to make such a container ready for operation.

According to IT-A-834936, a device for receiving three cartridges is known, with which the contents of the three cartridges can be pressed out simultaneously. This known device comprises a support frame with centering brackets for the cartridges containing the masses to be dispensed and a squeezing device with simultaneously operable piston rods with piston plates arranged at the ends and displaceable in the interior of the cartridges in the direction of the centering bracket, the cartridges to be used in this device having a cross-sectional shape and dimensions have that correspond to those of the centering brackets. The dispensing of the masses from the cartridges not shown in IT-A-834936 is likely to take place, similar to DE-A-2 537 022, via nozzle-like outlet openings, the outlet openings of the three cartridges being arranged quite far apart, so that part of the masses to be mixed must flow past the relatively small spatula when applied to a spatula. In addition, this device can be operated by hand and that each individual cartridge must be provided with an outflow nozzle, since the cartridges are not held in the device exclusively by the support frame construction, but with the aid of the outflow nozzles on the cartridges, which are in the corresponding Recesses are held in end limit plates of the supporting frame of the device.

Disadvantages of this device are that the device can only be operated by hand and that after the end of the squeezing process, mass still flows out of the cartridges, whereby this afterflow can only be stopped when the pressure of the press pistons exerted on the mass is released by pulling back the main piston rod .

US-A-4033480 describes a device with which two different media can be dispensed simultaneously from two separate containers. This device consists of a base plate with two openings, which are connected to exhaust valves. Two containers are arranged on the base plate and are provided with an outlet opening on the base. In the area of these outflow openings, the bottoms of the two containers have offsets located on the outside, in such a way that these offsets engage in the holes in the base plate in the case of containers arranged on the base plate. The bracket-like locking devices provided in this device not only serve to secure the position of the two containers on the base plate, but also to hold the lid parts of the two containers on the containers themselves, since the entire device is operated by means of compressed air. A piston plate, which can be acted upon by compressed air, is arranged in each container above the mass in the container, so that the masses can be pressed out of the two containers after the outflow valves have been opened.

A disadvantage of this device is that the piston plates are actuated in the interior of the two containers by means of compressed air. It cannot be ruled out that compressed air flows into the space between the piston plate and the container wall, since a complete seal in the piston plate edge area to the inner wall surface of each container is problematic. When emptying the container down to the last mass residues, it is therefore unavoidable that these residues are pressed out of the opened outlet valves with a relatively high pressure, and the mass flowing out can thus splash.

In addition, in the known device, the two containers on their base plates are centered only by the cranks. Each container is simply placed on its base plate and the container has to be moved until the offset provided in the area of the bottom outlet opening of the container engages in the through-hole in the base plate. Especially when it comes to large-volume containers with a relatively high weight, it is very difficult to move the container on its base plate until the hole is accidentally found in the base plate, so that the external offset in the area of the outlet opening in the base part of the container engages in the hole in the base plate.

The containers used in this device have offsets formed on the outside of the container base plates in the region of the container outlet openings on the bottom. The offset therefore does not lie in the plane formed by the base plate of each container. The result of this is that containers designed in this way cannot easily be placed vertically on a flat surface on their bottom side. The direct stacking of such trained containers is also difficult. The lid parts of the container are removable and must be held firmly on the container bodies due to the use of compressed air, which is done by means of the bracket-like locking devices provided.

As a result of the external offset provided in the containers of this device in the region of the outlet openings on the bottom, it cannot be ruled out that, if the containers are large and heavy, the entire bottom part can be pressed onto a flat surface when the containers are parked, with the result that the outer offset in the region of the outlet opening on the bottom comes to lie in the plane which is formed by the peripheral edge of the base plate of the container, with the result in turn that after placing such a damaged container on the base plate of the device, the offset does not fit properly the through-hole can engage in the base plate, so that mass can flow out between the base part and base plate when the device is started for mass dispensing and harden here. In this area there may be incrustations and it cannot be excluded that hardened mass particles get into the mass to be pressed out.

Furthermore, in this known device, the outlet valves for the two containers are arranged at a relatively large distance from one another, so that the masses from the two containers are not pressed out close to one another. The fact that the ejection pistons are acted upon by gas pressure does fix the containers by forwarding the pressing force of the pressing pistons to the container bottoms, the container bottoms being pressed against the base plates by the pressing force, but the gas pressure forces acting on the container lids must exceed Screw buttons and clamps are supported on the support frame and caught. However, in order to make this additional pressing by the pressing forces effective, the container lids must not be positively connected to the containers, since otherwise the gas forces acting on the container lid would not allow the pressing forces serving for the required fixation to take effect, but must be done using the screw buttons and clamping brackets attached to the support frame are pressed gas-tight against the containers. After this, a sealing screw connection of the container lid via a clamp is always required.

The invention seeks to remedy this. The invention solves the problem of creating a device with which not only fillers and hardener pastes can be dispensed simultaneously and in a metered manner, but also with which clean masses, without receiving crusty filler particles or other contaminants, are integrated from the corresponding containers via one another Removal openings can be dispensed, an overdosing of the masses to be dispensed with being avoided by the container contents flowing in again.

• a) an dem Traggestell in dessen oberen Bereich ein mittels Druckluft, Druckgas, hydraulisch oder elektromotorisch betriebener Arbeitszylinder mit einer senkrecht verfahrbaren Kolbenstange mit einer endseitig angeordneten Kolbenplatte angeordnet ist,
• b) die Zentrierhalterung für den die Stammasse aufnehmenden Behälter aus einer Standplatte mit einer sich durch den Bügelschenkel erstrekkenden Durchbohrung besteht und der Behälter mit einer mittigen oder exzentrischen, mittels eines Stopfens oder dgl. verschliessbaren Ausflussöffnung versehen ist, die von einer auf der Unterseite des Bodenteils des Behälters ausgebildeten, in die Öffnung in der Standplatte einführbaren Kröpfung begrenzt ist,
• c) der Behälter bodenseitig mit einem umlaufenden, die Standplatte seitlich übergreifenden Rand versehen ist, dessen Höhe mindestens der Höhe der Kröpfung entsprechend ausgebildet ist, so dass der Bodenteil unter jeglicher Vermeidung eines Zwischenraumes plan auf der Oberseite der Standplatte aufsitzt,
• d) ein U-förmiger Steuerbügel vorgesehen ist, dessen einer Bügelschenkel parallel zu der Kolbenstange des Arbeitszylinders verläuft und mit der Kolbenstange an deren plattenseitigem Ende in Verbindung steht, während der andere Bügelschenkel an seinem freien Ende einen weiteren Kolben für den die Härterpaste aufnehmenden, in dem Traggestell gehaltenen Behälter trägt, dessen Ausflussöffnung mit einer Durchbohrung in der Trägerplatte des Traggestells fluchtend ausgebildet ist,
• e) unterhalb der Trägerplatte bzw. der Standplatte eine die die Ausflussöffnung der Behälter verbindende Durchbrechungen in der Trägerplatte bzw. Standplatte verbindende Abfülleinrichtung mit dicht nebeneinanderliegenden Ausgabeöffnungen angeordnet ist, und
• f) die Ausflussöffnungen der beiden Behälter mit an dem Traggestell angeordneten Austrittsstutzen zusammenwirken, die in einem an dem Traggestell angeordneten Abfüllkopf als Abfülleinrichtung mit Einlassöffnungen und Ausgabeöffnungen zusammengeführt sind, wobei mindestens eine Ausgabeöffnung mittels eines als Schrägbohrung ausgebildeten Kanals gegenüber der zugehörigen Einlassöffnung zur anderen Ausgabeöffnung versetzt angeordnet ist, und der Abfüllkopf mit einem verschwenkbaren Verschlussriegel oder einem plattenförmigen Schieber versehen ist, wobei der verschwenkbare Verschlussriegel vor der Stirnfläche des Abfülllkopfes die Ausgabeöffnungen gemeinsam freigebend oder verschliessend verschwenkbar ist.

To achieve this object, the invention provides a device for the simultaneous and metered dispensing of viscous masterbatches, in particular fillers or putty, and hardener pastes consisting of canshaped containers containing a displaceable pressdeclcel, provided on the bottom with closable outflow openings, with or without a support bracket attached to the container wall from a support frame designed as a U-shaped mounting bracket, which has plate-like centering brackets for the can-shaped containers and a squeezing device with simultaneously operable piston rods with piston ends arranged in the interior of the can-shaped containers in the direction of the centering bracket, the containers having a cross-sectional shape and dimensions which correspond to those of the centering bracket, which are arranged on the lower bracket leg of the support frame, which is designed in such a way that

• a) on the supporting frame in the upper area of which a working cylinder operated by means of compressed air, compressed gas, hydraulically or electromotively is arranged with a vertically movable piston rod with a piston plate arranged at the end,
• b) the centering bracket for the container holding the trunk consists of a base plate with a through hole extending through the stirrup leg and the container with a central or eccentric sealable by means of a stopper or the like Outflow opening is provided, which is delimited by a crank formed on the underside of the bottom part of the container and insertable into the opening in the base plate,
• c) the bottom of the container is provided with a circumferential edge which overlaps the base plate, the height of which is designed to correspond at least to the height of the offset, so that the base part sits flat on the top side of the base plate, with any space being avoided,
• d) a U-shaped control bracket is provided, one bracket leg runs parallel to the piston rod of the working cylinder and is connected to the piston rod at its plate-side end, while the other bracket leg at its free end a further piston for the hardener paste, in supports the container which is held, the outflow opening of which is flush with a through-hole in the support plate of the support frame,
• e) below the carrier plate or the base plate is arranged a filling device connecting the openings connecting the outflow opening of the containers in the carrier plate or base plate with closely adjacent dispensing openings, and
• f) the outflow openings of the two containers cooperate with outlet connections arranged on the support frame, which are brought together in a filling head arranged on the support frame as a filling device with inlet openings and discharge openings, at least one discharge opening being offset from the associated inlet opening to the other discharge opening by means of a channel designed as an oblique bore is arranged, and the filling head is provided with a pivotable locking bar or a plate-shaped slider, the pivoting locking bar in front of the end face of the filling head being able to jointly open or close the dispensing openings.

With a device designed in this way and containers aligned for this purpose for the stock mass and the hardening paste, it is possible to empty the containers to the last residue. The container is kept centered in the support frame by means of the base plate, so that the piston plate of the working cylinder can act directly on the mass in the interior of the container. When the working cylinder is actuated, the piston plate or, if a separate press cover is arranged in the interior of the container, this press cover is pressed in the direction of the container outlet opening, so that the container content emerges from the opening of the pipe socket provided on the bottom of the device and at the same time in the provided on the bottom Filling head is pressed, the respective quantities to be dispensed can be adjusted in the filling device by corresponding actuation of the shut-off valve.

The fact that the container for the trunk is provided in the region of its base with a centering device designed to be offset on the outside, makes it possible for the piston plate of the working cylinder in the interior of the container to be moved onto the container base part, so that the container contents up to the last remnant can be pressed out of the container. The base plate centering the container in the device is formed in the area of its through-hole opposite the outlet opening of the container so that the offset on the outside of the container bottom can be inserted into the opening of the through-hole, so that the container lies flat on the base plate with its base part. The circumferential edge of the container, which has at least a height that corresponds to the height of the offset in the region of the outflow opening of the container, laterally overlaps the base plate, so that a firm fit of the container is ensured in the device, which is particularly advantageous if in the container has only a few regular aces. The base plate is designed accordingly, so that the container is always centered on the base plate.

The device designed according to the invention is reusable. If a can-shaped container is emptied, only a new full container is inserted into the device and the contents of the container can be dispensed in the desired quantity by means of the working cylinder. Because the container is aligned with the design of the device, only the containers specially designed for this purpose can be used for the device designed according to the invention.

The advantages achieved by the invention are essentially to be seen in the fact that, at the same time, the master batch and hardener composition are pressed out of two containers in metered quantities in such a way that the quantities dispensed lie close together on a base. The two containers which hold the masses are matched to one another in their diameters in such a way that parallel dosing, i.e. Output of the masses in the respective required ratios to one another is possible. In addition, the container for the hardener paste can be squeezed out in the simplest manner, which is achieved by means of the control bracket which is connected to the working cylinder. The can-shaped container used for the hardening paste can be designed in the same way as the container for the parent mass. The holder for the container with the hardening paste can also be designed in accordance with the base plate for the container with the master mass and has a centering device. The hardener paste is dispensed by means of the control bracket which is positively controlled by the working cylinder for the container with the parent mass.

Further advantageous embodiments of the invention emerge from the subclaims.

• Fig. 1 in einer Ansicht von vorn eine Vorrichtung zum gleichzeitigen und dosierten Abgeben des Inhaltes eines dosenförmigen Behälters für Stammasse,
• Fig.2 in einer Seitenansicht die Vorrichtung gemäss Fig. 1,
• Fig. 3 in einer Seitenansicht eine weitere Ausführungsform der Vorrichtung gemäss Fig. 1 und 2, jedoch mit einem anders angeordneten Arbeitszylinder für das Herausdrücken der Stammmasse aus dem Behälter,
• Fig. 4 teils in einer Seitenansicht, teils in einem senkrechten Schnitt eine erfindungsgemässe Vorrichtung zum gleichzeitigen, dosierten Entleeren des Inhaltes von zwei Behältern für Stammmasse und Härterpaste mit in die Vorrichtung eingesetzten Behältern, wobei der Presskolben für den Behälter mit der Härterpaste zwangsgesteuert vom Arbeitszylinder für den Behälter für die Stammasse ist,
• Fig. 5 teils in einer Seitenansicht, teils in einem senkrechten Schnitt einen für die Abgabevorrichtung speziell ausgestalteten, dosenförmigen Behälter,
• Fig. 6 in einer Ansicht von vorn zwei in einem Traggestell angeordnete Behälter mit in eine gemeinsame Abfülleinrichtung mündenden Austrittsstutzen,
• Fig. 7 in einer Seitenansicht die Abfülleinrichtung,
• Fig. 8 in einer Draufsicht die Abfülleinrichtung nach Fig. 7,
• Fig.9 in einer Queransicht die Abfülleinrichtung nach Fig. 7,
• Fig. 10 in einer Draufsicht den Verschlussriegel für die Abfülleinrichtung,
• Fig. 11 in einer Queransicht den Verschlussriegel gemäss Fig. 10,
• Fig. 12 in einer schematischen Seitenansicht eine Abgabevorrichtung mit einem Behälter und mit einem Adapter,
• Fig. 13 in einer Seitenansicht eine weitere Ausführungsform der Vorrichtung mit zwei nebeneinanderliegend angeordneten Kartuschen,
• Fig. 14 in einer Ansicht von oben die Vorrichtung gemäss Fig. 13,
• Fig. 15 in einer Ansicht von vorn die Vorrichtung gemäss Fig. 13 und
• Fig. 16 in einer Ansicht von vorn eine aus einer kammartigen Schieberplatte bestehende Strangabschneideeinrichtung.

Various dispensing devices in the drawings are explained in more detail below. It shows

• 1 is a front view of a device for simultaneous and metered delivery of the contents of a can-shaped container for regulars,
• 2 shows a side view of the device according to FIG. 1,
• 3 shows a side view of a further embodiment of the device according to FIGS. 1 and 2, but with a differently arranged working cylinder for pressing out the stock mass from the container,
• Fig. 4 partly in a side view, partly in a vertical section, an inventive device for simultaneous, metered emptying of the contents of two containers for stock and hardener paste with containers used in the device, the plunger for the container with the hardener paste positively controlled by the working cylinder for is the container for the regular aces,
• 5 partly in a side view, partly in a vertical section, a can-shaped container specially designed for the dispensing device,
• 6 is a view from the front of two containers arranged in a support frame with outlet connections opening into a common filling device,
• 7 is a side view of the filling device,
• 8 is a top view of the filling device according to FIG. 7,
• 9 shows the filling device according to FIG. 7 in a transverse view,
• 10 is a top view of the locking bar for the filling device,
• 11 is a transverse view of the locking bar according to FIG. 10,
• 12 is a schematic side view of a dispensing device with a container and with an adapter,
• 13 is a side view of a further embodiment of the device with two cartridges arranged side by side,
• 14 is a top view of the device according to FIG. 13,
• 15 is a front view of the device according to FIGS. 13 and
• 16 shows a strand cutting device consisting of a comb-like slide plate in a view from the front.

According to the embodiments shown in FIGS. 1 to 5, a device for dispensing the contents of can-shaped containers consists of a support frame 5, which is designed like a bow or frame and is designed to accommodate two containers 100 and 200. The container 100 is used to hold a base mass, such as filler or putty, while the container 200 holds the hardening paste.

1 to 3, in deviation from the invention, only one container 100 is shown.

The support frame 5 has two webs 11, 12 which are arranged at a distance from one another and are connected to one another via a vertical web 13. However, there is also the possibility of connecting the two webs 11, 12 to one another via a connecting plate. One of the two webs serves to receive a working cylinder 20, while the other web 12 is provided as a base plate 30 for the containers 100 and 200 to be emptied.

The working cylinder 20 operated by means of compressed air, compressed gas, hydraulically or by electric motor or by hand is arranged on the upper web 11 of the support frame 5 in the embodiment shown in FIGS. 1 and 2. In the embodiment according to FIG. 1, the working cylinder 20 is arranged below the upper web 11, so that the working cylinder 20 comes to lie between the two webs 11, 12.

The lower web 12 of the support frame 5 is designed as a base plate 30 for the containers 100 and 200 and carries a filling device 400 which can be connected to the containers 100 and 200 (FIGS. 1 to 4). The base plate 30 is provided with a centering device 90, which will be described in more detail below, so that the outlet opening provided centrally or eccentrically on the container 100 or 200 after the container has been inserted into the device with the filling pipe socket or the inlet openings of a filling head 410 as the filling device 400 correspond.

The two containers 100 and 200 are can-shaped, but there is also the possibility of forming the container 200 for the hardening paste in the form of a cartridge. Both containers 100 and 200 are provided on the bottom side with outflow openings 106, 206, whereby these outflow openings can be arranged centrally or eccentrically in the base plate of the containers. The two outflow openings 106, 206 can be closed by means of a closure element, such as a stopper, screw closure or the like. 108. These closure elements are removed when the containers are used.

According to the embodiment of the invention shown in FIG. 4, the support frame 5 consists of a holding bracket 10 with an upper web 11 and a lower web 12. The two webs 11, 12 are connected to one another via the web 13. The holding bracket 10 is arranged such that the webs 11, 12 come to lie horizontally, while the web 13 connecting the webs 11, 12 to one another is vertical.

The upper web 11 carries the working cylinder 20, which is designed in a manner known per se, in which a drivable piston, not shown in the drawing, is arranged, the piston rod 21 of which is guided through a bore 14 in the upper web 11 of the holding bracket 10. The piston rod end lying in the space between the two webs 11, 12 carries a plate-shaped piston 22. Is the container 100 with a displaceable in its inner space Chen press cover provided, the piston 22 need only be dimensioned so that sufficient pressurization of the press cover is achieved. If the container 100 does not have a press cover that can be displaced in its interior, the piston 22 has a cross-sectional shape that corresponds to the cross section of the container 100. At 25 in Fig. 4 an on and off switch for the working cylinder 20 or another suitable drive device is provided.

In the feed path of the piston 20 of the working cylinder 20, the lower web 12 carries a base plate which faces the upper web 11 and which can have a circular, square or rectangular cross section. The cross section of the base plate 30 depends in each case on the cross section of the container 100 to be inserted into the device.

The base plate 30 serves to center the container 100 and is provided with a centering device 90 which interacts with the container 100, which will be discussed in more detail below.

A through-hole 31 is provided in the base plate 30, which is aligned with a through-hole 15 in the lower web 12. A pipe socket 16, which forms the filling device 400, adjoins this through-bore 15 in the lower web 12.

In the exemplary embodiment shown in FIG. 4, the through-hole 31 in the base plate 30 has an opening 31a a widened on the top side, which will be discussed in more detail below in connection with the description of the container.

As shown in FIG. 4, the support frame 5 is formed in addition to the receptacle for a container 100 for the reception of another container 200 for the hardening paste. For this purpose, the support frame 5 has a holder 150 which is integrated in the support frame 5. The holder 150 is designed such that the container 200 is held vertically in the device. The container 200 can also be provided with a press cover 230 which can be displaced in the container interior in the longitudinal direction of the container. However, it is also possible to use containers 200 that do not have a press cover 130. At the bottom, the container 200 is provided with an outflow opening 206.

The lower region of the holder 150 can be designed corresponding to the base plate 30 and then also serves to center the container 200 corresponding to the container 100. However, the base plate 30 can also be designed such that it has centering devices 90 for the container 100 and the container 200 .

4, a pipe socket 216 is connected to the base plate 150a of the holder 150 for the container 200 such that the pipe socket 216 is aligned with the outflow opening 206 of the container 200.

The container 200 is emptied by means of a control bracket 300, which is U-shaped in the embodiment shown in FIG. 4. The two bracket legs 302, 303 of the control bracket 300 are connected to one another via a bracket web 301. Of the two stirrup legs 302, 303, the stirrup leg 302 facing the working cylinder 20 and lying parallel to it is passed through a through-hole 305 provided in the upper stirrup leg 11 of the holding bracket 10 of the support frame 5. With its free end 302a, the bracket leg 302 of the control bracket 300 is fastened to the piston 22 of the working cylinder 20. The stirrup leg 302 has a length that corresponds at least to the height of the container 100, so that in the lowest position of the piston 22 of the working cylinder 20, the stirrup web 301 of the control stirrup 300 comes to lie above the peripheral edge of the container 100 (FIG. 4) .

The other stirrup leg 303 of the control stirrup 300 has a length corresponding to the stirrup leg 302 and carries at its free end 303a a plate-shaped piston 322 which is guided in the interior of the can-shaped container and which, when the container 200 is provided with a press cover 230, acts on it.

Corresponding to the movement of the piston 22 of the working cylinder 20, the piston 322 of the control bracket 300 is also moved, so that hardener paste is pressed out of the container 200 when the master mass is pressed out of the container 100. With regard to their diameter, the two containers 100, 200 are coordinated with one another in such a way that hardener paste is pressed out of the container 200 when the stock is pressed out in the required ratio. However, there is also the possibility of designing the control bracket 300 in such a way that the hardener paste and master batch are dosed in the ratio required in each case.

The container 100 which can be inserted into the holding bracket 10 of the device for the parent mass is of a can-shaped design according to FIG. 5 and has a circular, square or rectangular cross section. The cross-sectional shape of the container 100 corresponds to the cross-sectional shape of the base plate 30 of the holding bracket 10.

The container 100 has a vertical container wall 101 and is closed by means of a cover part 102 for transport after the filler has been filled in. The container bottom part is indicated at 103. 104 denotes the interior of the container 100.

Arranged in the interior 104 of the container 100 is a press cover 130 which is freely displaceable in the longitudinal direction of the container and which consists of a plate-shaped blank with a lateral peripheral edge which is angled upwards and which has a cross-sectional shape and a diameter which corresponds to the cross-sectional shape and the diameter of the container 100 corresponds. The press cover 130 is displaced in the interior 104 of the container 100 by means of the piston 22 when the working cylinder 20 is actuated accordingly.

The cross-sectional shape of the container 100 and its diameter correspond to the cross-sectional shape and the diameter of the base plate 30, so that a container 100 placed on the base plate 30 covers the base plate 30 with its bottom part 103.

The container 100 is also provided on the bottom side with a peripheral edge 105, the design of this edge with respect to the configuration of the container base part 103 being such that when a container 100 is placed on the base plate 30, the peripheral edge 105 of the container 100 is the same encompasses sections of the peripheral lateral edge of the base plate 30, so that the base plate 30 serves to center the container 100 in the emptying device.

The outflow opening 106 is provided in the bottom part 103 of the container 100. This outflow opening 106 is reinforced by an external offset 107, so that the outflow opening 106 can be closed by means of a sealing plug 108 made of plastics or the like. The offset 107 formed on the outside of the container bottom part 103 and delimiting the outflow opening 106 has a height which is less than the height of the peripheral edge 105 of the container 100, which is extended over the bottom part 103 (FIGS. 4 and 5).

So that when the press cover 130 is actuated via the piston 22 when the working cylinder 20 is actuated, the container contents are pressed out of the outflow opening 106 of the container 100, the outflow opening 106 in the container base part 103 and the opening 31 of the through-hole 31 in the base plate 30 are flush with one another , so that the regular mass pressed through the outflow opening 106 can pass through the through hole 31 in the base plate 30 and the adjoining through hole 15 in the lower web 13 in the pipe socket 16 and thus to the dispenser.

If the outflow opening 106 is arranged eccentrically in the container base part 103, the opening 31a of the through-hole 31 in the base plate 30 is also arranged eccentrically. It is essential that when the container 100 is placed on the base plate 30, its outflow opening 106 coincides with the opening 31 of the through-hole 31 in the base plate 30.

The opening 31a of the through-hole 31 in the base plate 30 is shaped and designed in such a way that, when the container 100 is placed on the base plate 30, the outer offset 107 comes to lie in this opening 31a in the region of the outflow opening 106 on the container base part 103, so that the container 100 with its bottom part 103 comes to a flat position on the top of the base plate 30, avoiding any space. This special configuration of the opening 31a a of the through-hole 31 in the base plate also serves to center it when a container 100 is placed thereon, in particular when the outflow opening 106 into the container base part 103 and the through-hole 31 in the base plate 30 are arranged eccentrically to the center of the container . The special design of the bottom part 103 of the container 100 and that of the base plate 30 complement one another to form the centering device 90.

In the exemplary embodiment shown in FIG. 4, the container 100 has a height which corresponds to the distance between the two webs 11, 12 of the holding bracket 10 of the support frame 5. The piston 22 of the working cylinder 20 can also be plate-shaped and have a shape and a diameter that corresponds to the shape and the diameter of the press cover 130 in the interior 104 of the container 100. When using a piston 22 designed in this way in the form of a plate, it is ensured that the press cover 130 is pressurized uniformly when the working cylinder 20 is actuated. The container 100 is then inserted into the holding bracket 10 by laterally tilting and placing the bottom part 103 of the container on the base plate 30 and then placing the container vertically, so that the container bottom part 103 rests on the base plate 30, while the peripheral container edge 105 grips it laterally and is thus held in the bracket by them.

For additional holding of the container 100 in the holding bracket 10, holding devices, for example in the form of tension springs 120, 121, can be provided, which are fastened laterally to the base plate 30 with their bottom ends 120a, 121a, while their upper free ends 120b, 121b are provided with engagement hooks 125, 125a which, when the container 100 is placed on the base plate 30, engage in the upper peripheral edge of the container and thus give the container 100 an additional hold in the holding bracket 10. The number of tension springs can be chosen arbitrarily. It will depend on the size of the containers used. The bottom-side fastening of the tension springs 120, 121 to the base plate 30 is such that the peripheral edge 105 of the container 100 does not in any way prevent the base plate 30 from reaching over to the side. However, there is also the possibility of fastening the tension springs 120, 121 on the bottom side to the lower web 12 of the supporting frame 5 (FIG. 4). However, differently designed holders for the container 100 on the base plate 30 can also be provided.

If the container 100 is provided with a bracket 110 which is fastened to the container wall 101 by means of connection devices 111, 111, the engagement hooks 125, 125a thereof can engage in these connection devices 111, 111a to fasten the tension springs 120, 121.

The height of the container 100 used depends on the distance between the two webs 11, 12 of the bracket 10. Advantageously, the dispensing device will be oriented so that it can hold 5-kg containers for the regulars, but are also smaller and larger containers can be used if the device is dimensioned accordingly.

The container 200 can also be designed in accordance with the configuration of the container 100. The container 200 need not be held in the support frame 5 by means of brackets. However, there is also the possibility of fastening the container 200 in a free-standing manner on its associated base plate.

In order to be able to use containers of different sizes with the same dispensing device, the spacing of the two webs 11, 12 is variable. In order to be able to change the distance between the two webs 11, 12, the web 13 connecting the webs 11, 12 to one another is designed telescopically, so that the two webs 11, 12 can be pulled against one another or apart. A corresponding dimensioning of the working cylinder is essential here, so that its piston rod has a corresponding length if containers 100 with a small height are used. If containers 100 of different heights are used, it is essential that all of these containers are designed in such a way that they can be placed on the base plate 30 with their peripheral edge 105 and that the outflow openings 106 of the containers lie in the region of the through-hole 31 of the base plate 30 come. The bracket 10 can be attached to a wall or the like.

As shown in FIG. 6 in a simplified representation, the outlet openings of the two containers 100, 200 are connected to a common filling head 410.

The filling head 410, which represents the filling device 400, is provided with a locking latch 411 and is designed as a generally prismatic body which has a circular segment-like, spherical end face 415 (FIGS. 9 to 9). On the upper side 443 of the filling head 410, two inlet openings 421, 424 are provided, each of which is assigned to the outflow openings of the two containers 100, 200. The discharge opening 423, which is assigned to the inlet opening 421 for supplying the hardening paste, is connected to the inlet opening 421 by means of a channel designed as an oblique bore 422. As a result, the discharge opening 423 is arranged closer to the discharge opening 426 in relation to the inlet opening 421 for the supply of the filler. A groove 429 is formed on both sides of the discharge opening 423 on the end face side. The end sections 439, 440 of the end face 415 and the side faces 416, 417 are designed as chamfers 427, 428. However, the groove 429 can also have a sealing element inserted into the groove.

Recesses 418 are formed on the side surfaces 416, 417, in which bearing journals can be inserted, about which the locking bolt 411 can be pivoted. The pivoting range of the locking bolt 411 is limited by an upper stop 419 and a lower stop 420. Both stops 419, 420 are arranged on the side surfaces 416, for example they can be formed by pins projecting beyond the plane of the side surface 416.

The locking bolt 4 has a U-shaped cross section and consists of a longitudinal web 431, on the end section side of which a transverse web 434, 435 is arranged. The transverse webs 434, 435 have openings 436, 437 into which the bearing journals mounted in the recesses 418 can be inserted. A connecting member 438 for a handle 421 is also provided on the crosspiece 434.

On the surface of the longitudinal web 431 facing away from the filling head 410, closure connectors 413, 414 associated with the dispensing openings 423, 426 are each arranged with a recess 432, 433 open to the dispensing openings 423, 426. On both sides of the longitudinal sides of the longitudinal web 431, associated with the closure piece 413, 414, sealing strips 441, 442 can be arranged (FIG. 9), which extend between the chamfer 439 and the groove 429 or the groove 429 and the groove 430. These sealing strips 441, 442 are preferably designed in such a way that they enable the masses emerging from the dispensing openings 423, 426 to be sheared off without residues of the dispensed mass remaining after the metering process has ended.

The groove 429 serves to prevent the hardening paste emerging from the discharge opening 423 from mixing with the parent compound emerging from the discharge opening 426 when the filling head 410 is closed. The groove 430 formed in the end face 415 also serves to receive hardening paste emerging from the discharge opening 423.

With the filling head 410, joint filling of master batches and hardening pastes located in separate containers 100, 200 is possible. The dispensing openings 423, 426, which are located in the immediate vicinity of one another, make it possible to apply the hardening paste and the master paste even on small spatulas without loss of material. The locking latch 411 can, however, also be designed differently. So it is possible to provide the locking latch with sealing body inserts, via which the dispensing openings can be closed.

If containers 100, 200 with different sizes are used in the device designed according to the invention, then the stirrup legs 302, 303 of the control stirrup 300 are designed to be variable in their lengths, so that a perfect pressing out of the contents of the two containers 100, 200 is ensured. This length adjustment of the stirrup legs 302, 303 can be done by a telescopic design of each stirrup leg.

According to a further embodiment according to FIGS. 13 to 15, the support frame 5 of the overall device is designed such that two containers or cartridges 100 and 200 are arranged side by side in this. The larger container 100 then receives the filler or putty from the two containers 100, 200, weh rend the other, designated 200 container, for example, a hardening substance that is required for a quick hardening of the filler or putty.

The device shown in FIGS. 13 to 15 is also provided with a strand cutting device 500. This strand cutting device 500 consists of a plate-shaped slide 521a, which has a U-shaped profile with the legs 522 and 523, which are connected to one another via a web 524, to which the working cylinder 525 for moving the slide 520 is connected.

The distance between the two legs 522, 523 of the slide 521 a corresponds to the distance between the discharge openings 502, 502 a of the two associated drainage nozzles. The width dimensioning of each leg 522 or 523 is such that when the slide 521 is lowered, each of the two dispensing openings 502, 502a is completely and in particular airtight.

The bottom edges of the legs 522, 523 of the plate-shaped slider 521 are designed in the manner of knives as cutting edges 522a and 523a, so that even with a strand cutting device designed in this way, a perfect severing of the mass strand is guaranteed to end a removal process.

The front plate 515 of the support frame 5 is then provided with a corresponding number of openings or emptying nozzles. In this embodiment, the strand cutting device 500 consists of a comb-shaped slide plate 621 with a number of these plate-shaped tines 622, 623 and 624 corresponding to the number of discharge openings of the emptying nozzle (FIG. 16). The number of these plate-shaped tines 622 to 624 depends on the number of cartridges accommodated in the support frame 5. Each tine 622 to 624 is designed and dimensioned such that the corresponding outlet openings are sealed airtight when the slide 621 is in the lowered position. The lower edges of the comb-like slide 621 are also knife-shaped as cutting edges 622a, 623a and 624a, so that the removal process can be interrupted simultaneously for all the containers accommodated in the support frame 5. In this case, too, it is possible to cut off the strands properly.

A device designed in accordance with FIGS. 13 to 16 ensures that regardless of the degree of viscosity of the contents of the containers when filling to complete the filling process, a flash-like cutting of the mass strand from the masses still in the containers is possible without a strand section of the filling mass hangs out of the emptying nozzle and can harden through air supply, so that the emptying nozzle must first be freed from the hardened mass before the contents of the container can be removed again. This type of cleaning process does not apply to this device, since at the same time the removal opening is hermetically sealed after the mass strand has been cut off, so that when the contents of the container are removed again, the original consistency of the mass is available and does not remove a hardened, drop-like section of the strand must become.

The design of a strand cutting device with a comb-shaped slide enables the outlet openings of several emptying nozzles to be closed at the same time and without problems if the device is designed such that several containers or cartridges filled with highly viscous masses have to be accommodated, the contents of which, for example, must be accommodated Mixing purposes or at a desired increase in the filling speed should be subjected to an emptying process at the same time.

In order to also be able to use containers 100 or 200 with outlet openings 106 of different dimensions, an adapter 700 is arranged on the support frame 5 according to FIG. 12, which is provided with a through-hole 701 which is arranged centrally or eccentrically according to the arrangement of the outlet opening 106 can be. This through-hole 701 connects the outflow opening 106 of the container 100 or 200 to the inlet opening of the filling device 400, for which purpose the upper opening 702 of the through-hole 701 is adapted to the respective size and dimension of the outflow opening 106 of the container 100 or 200, while the lower opening 703 of the Through hole 701 corresponds to the size and dimension of the inlet opening of the filling device 400. If containers with different outlet opening dimensions are used, the adapter 700 matched to these outlet openings is used in each case.

Claims (23)

1. Apparatus for the simultaneous, dosed dispensing of viscous stock substances, particularly fillers or cement, as well as hardener pastes from can-like containers (100, 200) with a movable pressure lid (130, 230) and provided on one side with closable discharge openings (106, 206) and with or without a supporting bow (110), which is fixed onto the container wall, comprising a supporting frame (5) in the form of a U-shaped stirrup (10) having plate-like centering holding devices for the can-like container and a squeezer with two simultaneously operable piston rods (21, 303) at the end of which piston plates (22, 322) are arranged, which can be moved into the inner areas of the can-like containers towards the centering holding device, whereby the containers have a cross section and dimensions corresponding to those of the centering holding device, which are arranged on the lower stirrup leg of the supporting frame (15), characterized in that

a) in the upper area of the supporting frame (5) a working cylinder (20) is arranged, operated by means of compressed air, compressed gas, hydraulically or electromotively, and having a vertically displaceable piston rod (21) with a piston plate (22) arranged at the end,

b) the centering holding device at least for the container (100) receiving the stock substance consists of a stand plate (30) with a through-bore (31) through the leg (12) of the bow, and the container (100) is provided with a central or eccentric discharge opening (106), which can be sealed by means of a stopper or the like (108), which is limited by a bend (107) formed on the underside of the base part (103) of the container (100) and which can be inserted into the aperture (31 a) in the stand plate (30),

c) the container (100) is provided at the bottom with an all-round edge (105), which overlaps the stand plate (30) at the sides and the height of which corresponds at least to the height of the bend (107) so that the base part (103) is positioned absolutely level allowing no intermediate space on the upper side of the stand plate (30),

d) a U-shaped control stirrup (300) is provided, one leg of which (302) is parallel to the piston rod (21) of the working cylinders (20) and connected to the piston rod at its plate-side end (at 302a) whilst the other stirrup leg (303) carries at its free end a further piston (322) for the container (200) which receives the hardener paste and which is held in the supporting frame (5), the discharge opening (206) of the container (200) being aligned with a through-bore in the carrier plate (12) of the supporting frame (5),

e) below the carrier plate (12) or the stand plate (30) an emptying device (400) is provided connecting the through-bores in the carrier plate or stand plate which connect the discharge openings (106,206) of the containers (100, 200) and the emptying device (400) has closely juxtaposed discharge openings (423, 426), and

f) the discharge opening (106, 206) of the two containers (100, 200) cooperate with the outlet pipe connections (405, 406, 16, 216) arranged on the supporting frame (5), the said pipe connections being brought together in an emptying head (410) as an emptying device (400) with inlet openings (421, 424) and discharge openings (423, 426), whereby at least one discharge opening (423) is positioned at a distance from the other discharge opening (426) via a channel which is formed as an oblique bore (422) opposite the associated inlet opening (421), and the emptying head (410) is provided with a locking bolt (411), which can be pivoted, or a plate-like slider (521, 521a, 621), whereby the said locking bolt (411) can be pivoted in front of the end surface (415) of the emptying head (410) so as to free or seal the discharge openings (423,426).

2. Apparatus according to claim 1, characterized in that the leg (13) connecting the two legs (11, 12) of the U-shaped holding stirrup (10) is constructed in a telescopic manner for changing the intermediate distance and with a clamping device.

3. Apparatus according to claims 1 and 2, characterized in that on the surface of the leg (431) of the locking bolt (411) which is turned away from the emptying head (410) the discharge pipe connections (413, 414) associated with the discharge openings (423, 426) are arranged having, in each case, one recess (432, 433) open towards the discharge openings (423,426).

4. Apparatus according to claims 1 to 3, characterized in that the locking bolt (411) can be pivoted in front of the end surface (415) of the emptying head (410) in a pivot area defined by an upper stop (419) and a lower stop (420).

5. Apparatus according to claims 1 to 4, characterized in that a connection part (438) for a handle (412) is constructed on the one crossbar (434).

6. Apparatus according to claims 1 to 5, characterized in that on the end surface side of the emptying head (410) a groove (429) or a sealing element inserted into the groove is provided between the discharge openings (423, 426).

7. Apparatus according to claims 1 to 6, characterized in that on either side of the discharge opening (423) grooves (420, 430), constructed vertically in the end surface (415), are provided for the hardener paste.

8. Apparatus according to claims 1 to 7, characterized in that chamfers (427, 428) are formed at the corner portions (439, 440) of the end surface (415) and lateral surfaces (416,417).

9. Apparatus according to claims 1 to 8, characterized in that the mounting support (150) for the can-like container (200) has on its base side a stand plate (150a) constructed so as to the stand plate (30) and the container (200) is constructed so as to correspond to the container (100).

10. Apparatus according to claim 9, characterized in that the two stand plates (30, 150a) are combined into a structural unit.

11. Apparatus according to claims 1 to 10, characterized in that the two stirrup legs (303, 302) of the control stirrup (300) are constructed so as to enable variation in length.

12. Apparatus according to claims 1 and 2, characterized in that the emptying device (400) is constructed as a strand-cutting device (500) comprising a plate-like slide (521, 521 a, 621) closing the discharge openings (502, 502a) in the carrier plate (12) or stand plate (30, 150) of the supporting frame (5) the slide being displaceably arranged by means of a working cylinder (525) in the vicinity of the discharge openings (502, 502a) in the supporting frame (5) and whose lower edge is constructed in a knife-like manner as a cutting edge.

13. Apparatus according to claim 12, characterized in that the juxtaposed discharge openings (502, 502a) are in working connection with a strand-cutting device (500), which comprises a plate-like slide (521) which closes the discharge openings (502, 502a) and is arranged so as to be displaceable by means of a working cylinder (525) in the vicinity of the discharge openings (502, 502a) in the supporting frame (5) and the lower edge of which is constructed in a knife-like manner as a cutting edge.

14. Apparatus according to claim 13, characterized in that the strand-cutting device (500) comprises a U-shaped slide plate (521 a), the legs (522, 523) of which are constructed in a knife-like manner as cutting edges (522a, 523) in the vicinity of their lower edges and in the path of movement of which the discharge openings (502, 502a) for the containers (100, 200) are arranged.

15. Apparatus according to claim 13, characterized in that the strand-cutting device (500) comprises a slide plate (621) constructed in a comb-like manner having a number of plate-like prongs (622, 623, 624) corresponding to the number of discharge openings (502, 502a) and the lower edges of which are constructed in a knife-like manner as cutting edges (622a, 623a, 624a) and in the path of movement of which the discharge openings for the containers (100, 200) are arranged.

16. Apparatus according to claims 13 to 15, characterized in that the supporting frame (5) is provided with guides (511, 512) for receiving the slide plate (521, 521 a, 621).

17. Apparatus according to claims 1 to 16, characterized in that between the discharge opening (106) of the container (100, 200) and the inlet opening of the emptying device (400), the stand plate is constructed as an adaptor (700) arranged in the supporting frame (5), the adaptor having a central or eccentric through-bore connecting the discharge opening of the container (100, 200) and the inlet opening of the emptying device (400), the size and dimensions of the aperture (702) at the one end of the through-bore (701) corresponding to those of the discharge opening (106) of the container (100, 200), whilst the size and dimensions of its other aperture (703) correspond to those of the inlet opening of the emptying device (400).

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