EP3168472A1 - Filling apparatus for mineral insulating foams - Google Patents

Abstract

The invention relates to the use of a reciprocal peristaltic pump (1) in a filling plant for filling of sensitive mineral Dämmstoffschäumen and a new method for controlling the delivery volume of a reciprocal hose pump (1), which is particularly advantageous for this application.

Description

The invention relates to a bottling plant for filling mineral insulation foams in cavities, in particular in cavities of building materials or components such as in particular building blocks using a reciprocal hose pump and an inventive method for operating a reciprocal peristaltic pump according to the invention.

Reciprocal pumps (or oscillating pumps) are known in the form of piston pumps or diaphragm pumps, which suck in the first cycle the fluid through an inlet valve and push out the fluid through the outlet valve in the second cycle. In this context, reciprocal means that the movement of the piston or the membrane takes place in the opposite direction in the first cycle and in the second cycle. Ordinary peristaltic pumps are not reciprocal pumps because they continuously convey by moving at least two rollers mounted diagonally opposite each other on a rotor over an arcuate section of the hose so that the hose is constantly squeezed by at least one roller. Furthermore, linear peristaltic pumps are known in which the fluid is moved continuously with a camshaft. The reciprocal peristaltic pump of the subject bottling plant is, as the name implies a peristaltic pump with reciprocal action principle and therefore has a Ausbringtakt and a blank cycle without application.

The EP 0447616 A2 describes a reciprocal hose pump for filling batteries, wherein the material to be metered is a high-viscosity galvanic gel, which is filled in smallest, constant amounts in button and round cells. In this reciprocal hose pump, a squeezing roller is moved vertically with a first vertical pneumatic cylinder whose stroke can be adjusted mechanically by stops. With a second pneumatic cylinder, the horizontal movement of the squeeze roller is controlled back and forth by the hose, the moving to the hose at the upper attachment point of the vertical Pneumatic cylinder takes place and moving away from the hose at the lower stop point of the vertical pneumatic cylinder. The amount that is conveyed at a stroke is thus achieved by changing the stroke of the vertical pneumatic cylinder by changing the mechanical stops, the metered amount per filling cycle is adjusted by the length of the stroke of the squeezing rollers.

The WO 2009130250 A1 describes a reciprocating peristaltic pump for filling low-viscous to high-viscosity foods (eg water, mayonnaise). The metered quantity per filling cycle is controlled by the length of the stroke of the squeezing rollers. The reciprocal hose pump has for this purpose a vertical adjusting device, which is formed by a servo motor and a rack. By timed control of the servomotor, the length of the movement of the rack and thus the stroke of the peristaltic pump can be controlled. The horizontal adjustment opens when reaching the lower point of the stroke, the two pinch rollers and the servomotor then moves them back to the upper point of the stroke.

The US 2006228240 A1 describes to the Fig. 1 - 6 a reciprocating peristaltic pump for dosing viscous to highly viscous foods. The filled quantity is controlled by repeatedly executing the filling operation with a fixed stroke of the squeezing rollers. The US 2006228240 A1 describes to the Fig. 7 13, a peristaltic pump which has a plurality of rollers mounted on a device, wherein the rollers move along a chain drive "in a circle", wherein the hose is always squeezed by at least one roller. The dosage is carried out in the second embodiment of the US 2006228240 A1 thus as in a conventional rotary hose pump, namely by changing the speed of the chain drive or only by the operating time.

The US 5380172 A describes a reciprocal peristaltic pump for filling food such as fruit pieces. The flow rate can be changed by changing the stroke of the squeezing rollers reciprocal hose pump can be specified by mechanical stops are adjusted manually.

The SU 1076622 A1 shows a translational hose pump, in which two pairs of rollers are each attached to a rod, which can be moved by a piston and down. The rods are moved in the same direction, so that one of the two roller pairs is always in crushing contact with the two laterally attached hoses. The pump thus promotes continuously as a conventional rotary hose pump, the funded amount is thus controlled only by changing the speed.

The DE 1528953 A1 describes a conventional rotary peristaltic pump for pumping concrete. The circularly arranged hose is constantly squeezed by at least one of the squeezing rollers, the amount delivered is thus controllable only by changing the speed.

The US 4529106 A describes a translational peristaltic pump having a plurality of rollers which are moved by a chain in a constant circulation, wherein always at least one roller clamps off the hose. The conveying mechanism thus corresponds to that of the rotary tube pump, wherein the delivery rate can only be controlled by the rotational speed of the rollers.

According to the state of the art, filling devices for filling cavities with foams are known, and in the prior art, piston dispensers or piston pumps are usually used for this purpose. In addition, screw conveyors were used. Each piston dispenser or each piston pump has a container for receiving foam material and a filling element for introducing the foam material into a cavity, a piston cylinder for conveying the foam material from the container to the filling element and a valve element, with the optional communication between the container and the piston cylinder and the piston cylinder and the filling element can be produced on.

The EP 0038552 A1 shows a filling plant for filling molds with foam material for the production of bricks. The foam material is introduced into the mold with a piston dispenser as described above.

The GB 2045344 A shows a filling system for filling cavities with foam material with a piston pump as described above.

The DE 202014100309 U1 shows a device for filling bricks with a plurality of previously described Kolbendosierern or piston pumps.

In the Austrian utility model application GM 50054/2015 it is proposed to use other types of pumps instead of piston pumps, such as rotary lobe pumps, gear pumps, sine pumps or peristaltic pumps for filling sensitive foams.

Especially with rapidly curing foams, or materials that build up quickly on the inside of pipes and hoses, all mentioned devices or pumps have the disadvantage that they can be freed from deposits only with some effort, the hose pump has the advantage that the mechanical moving components of the peristaltic pump do not come into contact with the foam to be delivered.

For particularly sensitive foams, ie foams with a very high proportion of air or gas content has been found that their structure is significantly influenced by the filling, which collapses in the worst case, the foam structure and thus its purpose after filling can no longer meet. When a foam collapses depends on several factors, with mechanical loads, especially dynamic loads, playing a significant role. Thus, changing the load on the foam, for example due to a change in pump speed, can result in the foam properties and foam stability changing, making the filling process difficult to control. An adjustment of the per unit time promoted amount of foam by speed change is thus disadvantageous, thus affecting the use of a continuously pumping pump, such as a conventional peristaltic pump with disadvantages. When pumping mineral foams with a normal rotary hose pump is particularly disadvantageous that the rotary tube pump is stopped after each filling a chamber and thereby the mineral foam, which is located in the hose area of the peristaltic pump to the outlet opening, still undergoes a slight pressurization. As a result, the gas or air pores expand slowly and foam drips over a longer period of time, resulting in material losses and contamination. The longer the line or hose between the pump and the outlet opening, the stronger this effect. This effect would also occur in all reciprocal peristaltic pumps mentioned, if with these a foam would be pumped, since said reciprocating peristaltic pumps interact with squeezing rollers or elements which squeeze the tube below the reciprocal hose pump at the end of the Ausbringhubes. Consequently, the foam behind the pinched point would experience expansion and dripping due to the compressed gas or air bubbles.

Object of the subject invention is to provide a delivery mechanism for a bottling plant for sensitive mineral insulation foams, which prevents the attachment of material, or allows rapid cleaning of already attached material, the flow rate can be flexibly adjusted without the burden (in particular the dynamic load), which acts on the material to be conveyed change. A change in the load always occurs when the change in the flow rate is achieved by changing the speed or changing the speed of the pump.

According to the invention is proposed to solve the problem of using a reciprocal peristaltic pump for filling of sensitive mineral insulation foams.

Due to the reciprocal design of the mineral foam is pressed down through the roller system and when lifting the rollers immediately creates a suction effect on the mineral foam, which is located in the hose area of the peristaltic pump to the outlet opening. The dripping is eliminated and unnecessary material loss is thus prevented.

Preferably, the control of the delivery volume of the reciprocal hose pump according to the inventive method of claims 10 to 15, since this does not change the force acting on the mineral insulation foam load when changing the delivery volume.

Reciprocal peristaltic pumps are known per se, but their use for filling foams in general and sensitive mineral insulating foams in particular not. Heretofore, reciprocal peristaltic pumps have only been used to fill products that are sensitive for reasons of hygiene (e.g., food) or environmental (e.g., battery fluid) to prevent contamination of the product or contamination of the equipment by the product. For other general purposes, ie for the promotion of harmless products, other pump principles are used due to the simpler structure or the per se advantageous continuous promotion. For example, reciprocal piston pumps for filling blocks, due to the simpler structure. Rotary peristaltic pumps for the continuous delivery of concrete due to the continuous and thus higher delivery rate (no idle stroke).

The subject invention thus does not consist of the use of the reciprocal peristaltic pump due to the known application of the exclusion of contamination, since mineral insulation foams are completely harmless, but consists in the use of reciprocal peristaltic pump due to the gentle promotion of the sensitive foam, in particular the possibility of adjusting the delivered amount per unit time regardless of a change in the speed of the pump and thus load change of the foam.

The subject invention is based on an inventive step, as it the use of a per se for the general purpose of application pump type, which in any other field of technology (promotion of unfoamed, thus non-compressible hygienic or health sensitive media) is still necessary to soft promotion of harmless but compressible and sensitive mineral insulation foams.

According to the invention, a bottling plant is proposed as the use of the reciprocal peristaltic pump for filling sensitive mineral foam foams, comprising a container which is at least partially filled with the foam material to be filled and has at least one opening, from which a conduit leads to a filling element, such that each extending between an opening of the container and the filling element line is at least partially designed as a hose and on this hose section has a reciprocal hose pump, in which a hose pinching element along the longitudinal direction of the hose is moved, which is then moved back in the opposite direction, without to squeeze the hose. The squeezing the tube element is to be moved by an adjusting device to the hose to squeeze this and moved away from the hose to not squeeze the hose. As soon as the element crushing the tube is moved away from the tube by its adjusting device, the pressure is taken from the foam and there is no slow expansion of the foam, which means a long dripping. Due to the suction hose exerted by the expanding hose The foam is usually even moved back slightly in the direction of the reciprocal hose pump.

Preferably, the device according to the invention has no closure element, or no additional device for squeezing the tube behind the squeezing rollers of the reciprocal hose pump, so that the path from the inlet of the reciprocal hose pump to the outlet opening of the foam in the hollow body to be filled is free, as soon as the hose squeezing, reciprocal moving element was moved away from the hose.

According to the known operation of the reciprocal hose pump, the delivered volume per cycle of movement of the reciprocal hose pump can be controlled or regulated over the distance which traverses the hose squeezing element in crushing contact with the hose along the longitudinal direction of the hose. Known reciprocal peristaltic pumps have for this purpose usually a movable in the longitudinal direction of the tube carriage on which a rotatable roller is attached as crimping element, wherein the carriage is cyclically movable along the tube in opposite directions between two end points, wherein the tube upon movement of the carriage in the first direction is squeezed to the lower end point between the roller and a stop and is not squeezed between the roller and the stop when moving in the second direction.

In contrast, according to the invention, a new control of the delivered volume per cycle of movement of the reciprocal peristaltic pump is proposed, in which the stroke of the device or of the carriage is not changed or not adjusted. The reciprocating peristaltic pump according to the invention also has a slide movable in the longitudinal direction of the tube or another component to which a rotatable roller is attached as a squeezing element, wherein the slide is cyclically movable along the tube in opposite directions between two end points. The difference is provided that the tube is crushed during movement of the carriage in the first direction to the lower end point in a controllable portion of this movement between the roller and a stop and is not squeezed between the roller and the stop when moving in the second direction.

The stroke of the device or the carriage is thereby constant, wherein the roller has an additional adjusting device, with which it can be moved away from the hose. Due to the fact that the carriage only has to be moved back and forth between two end points, its drive is correspondingly simple and can be designed, for example, as a hydraulic or pneumatic cylinder. The additional adjusting device can also be kept simple, since through this the roller only has to be moved back and forth in the direction of the hose. The controlled volume is controlled exclusively by time control of the additional adjusting device by maintaining the squeezing contact of the roller with the hose only over a portion of the downward movement of the carriage upright.

Particularly valuable is this new device according to the invention, when several rollers are cyclically moved up and down by the one carriage, each acting on its own hose and each have their own adjusting device, with which the squeezing contact of the roller with the hose is selectively produced , As a result, with only one carriage moved parallel to the hoses, the delivered volume for each hose can be individually controlled.

Preferably, a stirring element is mounted in the foam container, which keeps the foam in motion and ensures a uniform distribution of the foam at the bottom of the container. Particularly preferably, the filling quantity or the filling level of the foam is detected in the cavities of the component to be filled and the stroke of the reciprocal hose pump is regulated in dependence thereon. The detection of the filling quantity or the level can already done during the filling or after completion of filling.

Preferably, the filling quantity or the filling level is individually detected for building materials with a plurality of cavities for each cavity, and the reciprocal peristaltic pump associated with the respective cavity is regulated in dependence thereon.

If the foam undergoes expansion after filling in the cavity, then the filling quantity or the level is preferably detected after completion of expansion, so that exactly the required amount of foam can be introduced, which leads to a minimum consumption of the foam material.

Particularly preferred are the building materials in the form of prefabricated elements such as building blocks, in particular hollow bricks, which are transported on an assembly line to representational plant.

Particularly preferably, the filling unit, which receives the outlet ends of the system according to the invention, attached to the arm of an industrial robot, wherein particularly preferably the filling unit is moved during the filling process with the conveyor belt, so that the building materials can be transported on the conveyor belt at a constant speed. As a result, acceleration processes of the assembly line are avoided, which in particular results in lower energy consumption. Particularly preferably, the filling unit, which accommodates at least one outlet end of the system according to the invention, is positioned by a robot with linear drives in the x, y, and preferably z direction, wherein the cavities of a stationary or moving building material are controlled successively in the xy plane can and preferably in the z-direction, the at least one outlet end lowered into each cavity to be filled and can be moved out during the filling of this. The reciprocal peristaltic pump is particularly valuable for this application because there must necessarily be a hose between the pump and the outlet end, so that the outlet end can be moved relative to the peristaltic pump between the cavities. The reciprocal hose pump prevents dripping without an additional closing element.

Particularly preferably, the position of the building materials on the conveyor belt or the position of the cavities in the building material is detected by sensors, so that the robot can control these accurately.

The bottling plant according to the invention can be used particularly advantageously for filling rapidly hardening mineral insulation foams having a high pore content of at least 50%, in particular at least 70%, compared to the prior art. Preferably, the mineral insulation foam has a cementitious matrix and is self-curing (i.e., cures without autoclaving).

Fig. 1:

zeigt eine schematische Darstellung einer beispielhaften erfindungsgemäßen Abfüllanlage mit einer aus anderen technischen Bereichen bekannten reziproken Schlauchpumpe in Ansicht von der Seite.

Fig. 2:

zeigt schematisch eine beispielhafte aus anderen technischen Bereichen bekannte reziproke Schlauchpumpe bei Bewegung des Schlittens in einer ersten Richtung.

Fig. 3:

zeigt schematisch eine beispielhafte aus anderen technischen Bereichen bekannte reziproke Schlauchpumpe bei Bewegung des Schlittens in einer zweiten Richtung.

Fig. 4:

zeigt schematisch eine beispielhafte erfindungsgemäße reziproke Schlauchpumpe, welche je eine Pumpe für zumindest zwei Schläuche ausbildet.

Fig. 5:

zeigt schematisch eine beispielhafte erfindungsgemäße reziproke Schlauchpumpe, welche als Pumpe für mehrere Schläuche ausgebildet ist.

Fig. 6:

zeigt schematisch eine beispielhafte erfindungsgemäße reziproke Schlauchpumpe, welche je eine Pumpe für je einen von mehreren Schläuchen ausbildet.

Fig. 7:

Die Fig. 7a-c zeigen schematisch eine erfindungsgemäße Schlauchpumpe mit an einem Rotor radial verstellbar befestigten Walzen, in drei verschiedenen Stellungen des Rotors bzw. der Walzen.

The invention is illustrated by means of drawings:

Fig. 1:

shows a schematic representation of an exemplary filling plant according to the invention with a reciprocal peristaltic pump known from other technical fields in view from the side.

Fig. 2:

schematically shows an exemplary reciprocating peristaltic pump known from other technical fields with movement of the carriage in a first direction.

3:

schematically shows an exemplary reciprocating peristaltic pump known from other technical fields when moving the carriage in a second direction.

4:

schematically shows an exemplary reciprocal peristaltic pump according to the invention, which each forms a pump for at least two tubes.

Fig. 5:

schematically shows an exemplary reciprocal peristaltic pump according to the invention, which is designed as a pump for a plurality of tubes.

Fig. 6:

schematically shows an exemplary reciprocating peristaltic pump according to the invention, which each forms a pump for each one of a plurality of tubes.

Fig. 7:

The Fig. 7a-c show schematically a hose pump according to the invention with radially adjustable mounted on a rotor rollers, in three different positions of the rotor or the rollers.

In Fig. 1 a filling system according to the invention is shown schematically.

As in Fig. 1 shown, the reciprocal hose pump 1 is arranged on a hose 2, which is connected at its inlet end to the bottom of the container 3 and at its outlet end to the filler neck 4 of the filling element 5. The filling nozzle 4 opens into the cavity 6 to be filled of a component 7, in particular a hollow chamber brick or hollow brick.

Per cavity to be filled 6 is advantageously at least one tube 2 with reciprocal hose pump 1 available, the reciprocal peristaltic pumps 1 of the different tubes 2 are operated at different void size with different stroke, or the hoses 2 have a different cross-section. Likewise, it would be possible with several hoses 2 to promote in a cavity 6, or to distribute the funded with a stroke volume of a hose 2 to two or more cavities 6.

The filling element 5 may have a closure element 8 for closing the filler neck 4 to prevent leakage of foam material between the filling operations. By the closure element 8 is mounted directly on the filler neck 4, or closes the outlet opening, dripping is prevented. If, however, as known from the prior art on the hose 2, a closure device is present, for example in the form of a device for clamping the tube 2, it comes as already described for dripping by expansion of the foam in the area after the clamping. As a closure device or closure element 8 are suitable in addition to valves and slides all other known in the prior art devices for selectively opening and closing an outlet opening.

The components 7 are preferably moved with a transport device, in particular a conveyor belt 9, relative to the filling device. The filling element 5 can be kept movable relative to the transport device or to the filling plant, for example, on the arm of an industrial robot 10 or by one or more linear drives in the x, y, and / or z direction. The relative movement of the filling element 5 is made possible in that in each case a flexible hose line runs between the reciprocal hose pump 1 and the filler neck 4, preferably in that each hose 2 extends continuously from the container 3 to the filling element 5 or the filler neck 4. A less preferred variant would be to provide further lines, for example in the form of pipes or hoses, which extend between the container 3 and the reciprocal hose pump 1 and / or between the reciprocal hose pump 1 and the filling element 5.

The filling element 5 preferably has a carrier in which the filler neck 4 are fixed or fixable in position according to the position of the cavities 6 of the component 7, in particular block, wherein the position of the filler neck 4 is changeable in the carrier, or the carrier with a carrier is replaceable with other Füllstutzenanordnung and the hoses 2 are fastened with quick fasteners to the filler neck 4. Furthermore, the filling element 5 may have at least one switching element, preferably in the form of a three-way valve, or a linear slide plate, to which at least one line coming from the reciprocal hose pump 1, in particular a hose 2, and at least one filler neck 4 are connected. In the container 3, an agitator 11 is preferably attached, which keeps the foam to be filled in motion in order to prevent deposition or hardening on the container wall.

In FIGS. 2 and 3 is the reciprocal hose pump 1 shown in detail, in which the hose 2 is guided vertically by the reciprocal hose pump 1. The reciprocal hose pump 1 consists of a frame 12, which a Guide for a vertically movable carriage 13 has. The tube 2 is preferably fixed at the upper end of the frame 12 and at the lower end of the frame 12 in its position. On the carriage 13, two rollers 14, 15 are mounted opposite each other on both sides of the tube 2. The rollers 14, 15 are each mounted on its axis, so that they roll on the hose 2, to keep the stress of the hose 2 low. In Fig. 2 is the reciprocal hose pump 1 shown in the dispensing process, in which the hose 2 is so strongly squeezed by the small distance between the rollers 14, 15 that no or hardly material the hose 2 between the two rollers 14, 15 can happen. Upon downward movement of the carriage 13, the rollers 14, 15 are moved synchronously downwards, whereby the material in the tube 2 is pushed down out of this. Above the rollers 14, 15 material is sucked from the container 3 into the tube 2. The way the two rollers 14, 15 cover during application determines the discharge rate per cycle. When the lowest point of the path is reached, as in Fig. 3 illustrated, at least one of the rollers 14 moved away from the tube 2, so that the tube 2 in the upward movement of the rollers 14, 15 is not, or hardly squeezed, so that little or no movement of the material takes place in the tube 2. It is advantageous that the material is moved only along a straight tube section and that the cross section of the tube 2 changes cyclically. This ensures that less material attaches to the hose 2 and by the cross-sectional change already hardening material from the hose 2 detaches. A cleaning of the tube 2 is quickly and easily possible without having to dismantle the device, or to remove the tube 2 from the device. The cleaning can take place in that cleaning fluid is passed through the hose 2 and / or mechanically cleaned with a hose brush and / or the hose 2 is deformed by the action of force from the outside, for example by tapping with a hammer. In the FIGS. 2 and 3 Filling device shown in foams are used, whose fluidity is so low that they would not flow alone through gravity due to the hose 2.

In order to prevent an uncontrolled escape of foam during upward movement of the rollers 14, 15, the outlet of the hose 2 can be closed by, for example, a slide. Advantageously, the closure element 8 of the respective tube 2 or filling nozzle 4 and the adjustment of the roller 14 mechanically, electrically, pneumatically or hydraulically coupled, so that the moving away of the roller 14 from the tube 2 and the closure with the closure element 8 takes place at the same time. For example, the adjusting devices of the roller 14 and the closure element 8 are single-acting hydraulic or pneumatic cylinders, wherein both cylinders can be acted upon by a common control valve with pressure. For example, when pressure is applied, the roller 14 is moved against the hose 2 by the cylinder against a spring force, and the closure element 8 is opened counter to a spring force.

As generalizations to in FIGS. 2 and 3 shown reciprocal hose pump 1, the orientation of the hose 2 may be arbitrary, for example, horizontal or oblique, a promotion vertically upwards is possible. Less preferably one can not perform the stop as a roller 15, but for example as a surface against which the hose 2, so that it is squeezed between the surface and roller 14. Instead of as in Fig. 3 shown the roller 14 wegzuschwenken from the tube 2, this can also be moved away from the tube 2 translationally. It may also be provided that the roller 15 is not as in FIGS. 2 and 3 is shown, assumes a fixed position, but that both rollers 14, 15 are moved away from the tube 2. The movement of the roller 14 and / or the roller 15 or any other stop towards and / or away from the hose 2 can be achieved via a mechanical, electromechanical, magnetic, pneumatic or hydraulic actuator take place.

For example, per hose 2, which runs from the container 3 to the filling element 5, a reciprocal hose pump 1 according to FIGS. 2 and 3 available.

As in Fig. 4 is shown, a plurality of hoses 2 can be provided with a reciprocal hose pump 1 according to the invention, wherein the frame 12 per hose 2 an adjustable roller 14 and a stationary roller 15 are provided on the carriage 13, wherein the rollers 14, as shown, arranged parallel to each other could be.

As in Fig. 5 is shown, it can also be provided that a roller 14 acts on a plurality of tubes 2, in which case the delivery rate of the four tubes 2 shown is uniform, unless it hoses 2 are used with different sized cross-sectional area. One sees Fig. 5 as a side view of Fig. 4 on, then with a cycle consisting of an up and a down movement of the carriage 13 thus eight hoses 2 could be emptied simultaneously.

In Fig. 6 a reciprocating hose pump 1 according to the invention is shown, which per hose 2 has an adjustable roller 14, wherein the rollers 14 are arranged one after the other in the longitudinal direction. The rollers 14 can be brought independently of each other to the respective tube 2, or moved away from it, so that different quantities per tube 2 can be promoted in a cycle by the rollers 14 during the downward movement of the carriage 13 are kept in that position for different lengths, in which they squeeze the tube 2. Do you see the Fig. 6 as a side view of Fig. 4 Then, with a cycle consisting of an up and a down movement of the carriage 13 thus eight hoses 2 simultaneously emptied, the amount of emptying for each hose 2 is individually controllable or regulated.

Advantageously reciprocal peristaltic pumps 1 according to the invention can thus be realized, which can empty a virtually any number of hoses 2 with only one frame 12 or a vertical guide and a movable carriage 13. This results in a compact design, as well as a cost-effective, easy to clean system.

As in Fig. 6 represented the filling plant can be placed in the form of a container 3 and the reciprocal hose pump 1 according to the invention directly above a conveyor belt 9, so that the components 7 can be moved directly under the filler 4 and the openings of the tubes 2, so that the foam to be filled perpendicular to direct Moving away from the container 3 in the components 7 is promoted. The filler neck 4 are shown as shown by a filling element 5. This may be movably supported relative to the frame 12 to allow for accurate positioning over the component 7 or to follow movement of the component 7 on the conveyor belt 9 during the filling process. If the components 7 are moved in exact position and orientation under the filling line and the conveyor belt 9 stops on reaching the desired position, the filler neck 4 may be mounted in a fixed position on the frame 12. If necessary, the filling nozzles 4 can have a common closure element 8, or can be closed individually by a closure element 8 assigned to the respective filler neck 4. If the filling system is to be used to fill different components 7, it can be provided that the filling nozzles 4 can be positioned individually or in groups, or the filling element has 5 valves in order to be able to supply the material flow from a hose 2 to different filler nozzles 4.

Advantageously, it can be provided that the filler neck 4 can be lowered into the cavities 6 and are moved out of these during the filling process.

• zumindest teilweises Füllen des Behälters 3 mit Schaum, welcher bevorzugt kontinuierlich von einem Schaummischer in den Behälter 3 gefördert wird, sodass die Öffnungen an denen die Schläuche 2 angeschlossen sind mit Schaum bedeckt sind, um ein Ansaugen von Luft zu verhindern.
• Quetschen jedes Schlauches 2 zwischen einer drehbaren Walze 14 und einem drehbaren Anschlag am Ausgangspunkt der Bewegung der Walze 14.
• Bewegung der drehbaren Walze 14 in quetschendem Kontakt mit jedem Schlauch 2 in Richtung des Auslassendes des Schlauches 2, um Schaum aus dem Behälter 3 in den Schlauch 2 zu saugen und bei bereits gefülltem Schlauch 2 Material aus dem Auslassende des Schlauches 2 zu quetschen.
• Wenn das benötigte Füllvolumen erreicht ist: Wegnahme der Quetschwirkung, indem die drehbare Walze 14 oder der drehbare Anschlag vom jeweiligen Schlauch 2 wegbewegt wird.
• Gegebenenfalls Ausführung der Bewegung der drehbaren Walze 14 in nicht quetschendem Kontakt mit dem Schlauch 2 in Richtung des Auslassendes des Schlauches 2, bis der Endpunkt der Bewegung der Walze 14 erreicht ist.
• Rückführung der Walze 14 an den Ausgangspunkt der Bewegung der Walze 14.

The inventive method for filling foam material with the reciprocal hose pump 1 comprises the following steps:

• at least partially filling the container 3 with foam, which is preferably conveyed continuously by a foam mixer into the container 3, so that the openings to which the tubes 2 are connected are covered with foam to prevent suction of air.
• Squeezing each tube 2 between a rotatable roller 14 and a rotatable stop at the starting point of the movement of the roller 14th
• Movement of the rotatable roller 14 in crimped contact with each tube 2 in the direction of the outlet end of the tube 2 to suck foam from the container 3 in the tube 2 and to squeeze material from the outlet end of the tube 2 in already filled tube 2.
• When the required filling volume is reached: removal of the squeezing action by the rotatable roller 14 or the rotatable stopper is moved away from the respective tube 2.
• Optionally, performing the movement of the rotatable roller 14 in non-crimping contact with the tube 2 toward the outlet end of the tube 2 until the end point of movement of the roller 14 is reached.
• Return of the roller 14 to the starting point of the movement of the roller 14th

The preferred filling method for cavities 6 with different volumes is based on the Fig. 6 described. The component 7 of Fig. 6 has four cavities 6, wherein the two middle cavities 6 are larger than the two outer cavities and, for example, have twice the volume. Each cavity 6 is filled with a tube 2, wherein on each tube 2, a roller 14 acts and the rollers 14 are mounted on a common carriage 13. At the upper starting point of the movement of the carriage 13, all rollers 14 are moved up to the stop, so that all hoses 6 are disconnected. The carriage 13 is moved down until the two middle cavities 6 are filled, wherein the two outer rollers 14, pivoted away from the respective hose 2 be as soon as the two outer cavities 6 are full, so when reaching half the distance. Once the carriage 13 has reached that lower position in which the central cavities 6 are filled, the two middle rollers 14 are moved away from the respective tubes 2 and the carriage 13 is brought back into the upper position. Of course, it is also possible that at the beginning, ie in the upper position of the carriage 13, only the two central rollers 14 squeeze the respective tubes 2 and the two outer rollers 14 are moved up to the respective tubes 2 only when half the distance is reached.

As a generalization should be noted that the leading through the reciprocal hose pump 1 hoses 2 can also be attached to different containers 3 and thus can accommodate different media.

As in the Fig. 7a-c illustrates the inventive method of speed-independent control of the delivery volume can also be implemented with a rotary tube pump 1 according to the invention, when the rotatable roller 14 has an actuator in order to move them away from the hose 2 can. In Fig. 7a-c such a hose pump 1 according to the invention is shown in three representations, each with a different orientation of the rotor 16. On the rotor 16, for example, two roller 14 are mounted, which are moved upon rotation of the rotor 16 along a circular path. The hose 2 can, as in the left part of the Fig. 7a-c , shown with solid lines running straight past the rotor 16, wherein on the opposite side of the rotor 16 of the hose 2 is a stop surface (not shown). The distance of the roller 14 to the axis of rotation of the rotor 16 is controlled by an unillustrated actuator. For example, the roller 14 is pressed by the actuator against a spring force with a defined force to the outside, so that the tube 2 when moving the roller 14 along its longitudinal direction between the roller 14 and the Stroke crushed with a defined force, as in the Fig. 7a and 7b shown. If the force is removed by the actuator, the roller 14 is moved away by the spring force from the tube 2, so that it is no longer squeezed between the roller 14 and the stop, as it is in Fig. 7c is shown. Since the force applied by the actuator at any point of movement of the roller 14 along the longitudinal direction of the tube 2 can be removed, the delivered volume per cycle can be controlled, one cycle of the movement of a roller 14 along the longitudinal extension of the tube 2 and the break to contact with the next roller 14 is. In Fig. 7c the rotor 16 is shown in dashed lines in that position, which the roller 14 long since possible in traversing contact with the straight tube 2 can travel. When rotor 16 shown with solid lines, the roller 14 is already moved away from the tube 2 before reaching this position, so that a correspondingly lower volume is promoted.

In the right part of the Fig. 7a-c the tube 2 is shown dotted, in which case the tube 2 is arranged in a circular arc along the orbit of the roller 14, so that the roller 14 is in contact with the tube 2 longer per revolution of the rotor 16. At the opposite side of the rotor 16 of the circular arc tube section of the hose 2 is located on a likewise arcuate stop (not shown). Again, there is an actuator that allows the roller 14 to be moved up and away from the tube 2 so that the delivered volume per cycle can be controlled, with one cycle of the movement of a roller 14 along the length of the tube 2 and the tube Pause until contact with the next roller 14 is. This principle of controlling the discharge rate works as long as the following roller 14, the hose 2 is only disconnected after the previous roller 14 has already released the hose 2. In the circular arc arrangement of Hose 2, the hose pump 1 of the invention Fig. 7a-c So also how an ordinary peristaltic pump 1 are operated when both rollers 14 constantly remain in the outer position, whereby the peristaltic pump 1 promotes quasi-continuous. For clarification is in Fig. 7b the rotor 16 shown in dashed lines in the vertical position, with two rollers 14 in the outer position of the tube 2 squeezing position. The hose 2 is in this mode of operation, as in a conventional peristaltic pump, at any time by at least one of the rollers 14 clamped.

In the subject peristaltic pump 1, in contrast to conventional peristaltic pumps, to reduce the discharge, the distance covered by the rollers 14 in crimped contact with the tube 2 along the circular arc portion of its longitudinal extension can be reduced, so that the peristaltic pump 1 no longer promotes , The discharge rate can thus be controlled at a constant speed of the rotor 16 over the frequency and the duration of those periods, which cover the rollers 14 by pressing the adjusting device in crimped contact with the tube 2. In contrast to the design shown with solid lines with straight hose 2, it is sufficient to adjust the roller 14 by the adjusting device selectively between two extreme position in the dotted circular arc arrangement of the hose 2, which simplifies the design of the adjusting device. By the adjusting device, the squeezing effect can be taken at any time from the tube 2, so that when a cavity 6 is completely filled with foam, the squeezing effect can be removed immediately and is only restored to fill the next cavity 6. The rotor 16 does not have to be stopped.

A particularly valuable peristaltic pump 1 according to the invention Fig. 7a-c results when several rollers 14 or pairs of rollers successively along the axis of the rotor sixteenth and each of these rollers 14 and each pair of rollers acts on its own tube 2 and has its own adjusting device, so that each roller 14 or each pair of rollers are moved independently of the other rollers 14 or pairs of rollers to the respective tube 2 can, so that the funded volume per hose 2 is independent of the other hoses 2 controllable. Since all rolls 14 or pairs of rolls are moved by a common rotor 16, a simple compact device results, for controlled filling or metering with several hoses 2.

The number of mounted on the rotor 16 rollers 14, which act on a hose 2, does not have to be two as shown, for example, it can be mounted on the rotor 16, for example, only one roller 14. Likewise, three, four or more rollers 14 can act on a hose 2, these being advantageously uniform, ie each having the same angle to one another on the rotor 16, and each roller 14 having an adjusting device with which its radial distance from the axis of rotation of the rotor 16 can be controlled or controlled is changeable. It may be sufficient if an adjusting device is present, which controls the distance of all rollers 14, which act on a hose 2, uniformly or changes.

Claims (15)

Use of a reciprocal hose pump (1) in a filling device comprising a container (3) which is at least partially filled with the material to be filled and has at least one opening and a filling element (5) with at least one filler neck (4), one between a Opening the container (3) and the filling element (5) extending line is at least partially designed as a hose (2) and at this hose section, the reciprocal hose pump (1), which in the longitudinal direction of the hose (2) movable carriage (13) to which is mounted a rotatable roller (14), the carriage (13) being cyclically movable along the hose (2) in opposite directions, the hose (2) moving at least temporarily in the first direction as the carriage (13) moves between the roller (14) and a stopper is crushed and when moving in the second direction not between the roller (14) and the Anschla g is squeezed, characterized in that with the reciprocal hose pump (1) a mineral foam insulation in cavities (6) of a building material or component (7) is promoted in particular a block. Use according to claim 1, characterized in that the mineral insulating foam is a self-curing mineral foam, which has a pore content of at least 50%, in particular at least 70%. Use of a reciprocal hose pump (1) in a filling device according to claim 1, characterized in that the path through the hose (2) from the inlet of the reciprocal hose pump (1) to the outlet opening of the foam at the filler neck (4) is free when the hose (2) is not squeezed between the roller (14) and the stopper. Use of a reciprocal hose pump (1) in a filling device according to one of claims 1 to 3, characterized in that at least one line in addition to the hose section on which the reciprocal hose pump (1) is arranged, has a further hose section, so that the filler neck (4 ) or the filling element (5) is movable relative to the container (3). Use of a reciprocal hose pump (1) in a filling device according to claim 4, characterized in that the filling nozzle (4) or the filling element (5) is positioned in the plane above the cavities (6), in particular by a robot, in particular with linear drives in x, y and preferably z direction. Use of a reciprocal peristaltic pump (1) in a filling device according to claim 5, characterized in that the filling nozzle (4) or the filling element (5) is lowered into the cavity (6) to be filled and is moved out of it during the filling. Use of a reciprocal hose pump (1) in a filling device according to one of claims 1 to 6, characterized in that the stop is a rotatable roller (15) which is fixed to the movable carriage (13). Use of a reciprocal hose pump (1) in a filling device according to one of claims 1 and 7, characterized in that the reciprocal hose pump (1) has an adjusting device with which the distance of the roller (14) is controllable to stop. Use of a reciprocal hose pump (1) in a filling device according to one of claims 1 to 8, characterized in that for controlling the delivery volume of the Reciprocating peristaltic pump (1) the method according to any one of claims 10 to 15 is used. A method of controlling the delivery volume of a reciprocal peristaltic pump (1) comprising at least one rotatable roller (14) cyclically moved along at least one tube (2) from a starting point on the tube (2) to an end point on the tube (2 ), wherein the tube (2) is at least temporarily squeezed between the roller (14) and an abutment when the roller (14) is moved along the longitudinal direction of the tube (2), starting from the starting point to the end point, by the roller (14) or the stop is pressed by an adjusting device against the hose (2) and the hose (2) is not squeezed between the roller (14) and the stop when the roller (14) moves back to the starting point, characterized in that the delivered volume at a movement of the roller (14) from the starting point to the end point along the longitudinal direction of the hose (2) is controlled by by driving the adjusting device of the hose (2) only in a a portion of this movement is squeezed. A method according to claim 10, characterized in that the reciprocal hose pump (1) comprises a plurality of rotatable rollers (14), each roller (14) acting on its own hose (2), the rollers (14) cyclically along from a common drive the hoses (2) are moved from a starting point on the respective hose (2) to an end point on the respective hose (2), the respective hose (2) being moved along its longitudinal direction when the hose (14) moves. from the starting point to the end point in an individually controlled area of this movement between its roller (14) and its abutment is squeezed by each roller (14) or each stop by its own individual driven adjusting device against the hose (2) is pressed. Method according to one of claims 10 to 11, characterized in that at least one hose (2) runs straight through the reciprocal hose pump (1) and the roller (14) is moved along the hose (2) in the event of squeezing contact. Method according to one of claims 10 to 11, characterized in that the at least one roller (14) by a rotor (16) is moved in a circle and at least one hose (2) extends in a circular arc around the pivot point of the rotor (16), each roller (14) mounted on the rotor (16) is moved by the rotor (16) in a circular arc from the starting point to the end point along the hose (2), each roller (14) having on the rotor (16) an adjusting device with which the portion the path which the roller (14) travels in crushing contact with the hose (2) within the movement from the starting point to the end point. Method according to one of claims 10 to 13, characterized in that the time-controlled operation of each actuator, with which a roller (14) or a stop against a hose (2) is pressed, takes place electrically, pneumatically or hydraulically. Method according to one of claims 10 to 14, characterized in that each adjusting device, with which a roller (14) or a stop against a hose (2) is pressed, with a closure element (8) cooperates, so that the hose (2) or the at that subsequent line at that time in which the hose (2) is not squeezed between the roller (14) and stop, is closed at another point by the closure element (8).

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