EP2863056B1 - Machine for pumping mortar, plaster, concrete or similar - Google Patents
Machine for pumping mortar, plaster, concrete or similar Download PDFInfo
- Publication number
- EP2863056B1 EP2863056B1 EP14174220.5A EP14174220A EP2863056B1 EP 2863056 B1 EP2863056 B1 EP 2863056B1 EP 14174220 A EP14174220 A EP 14174220A EP 2863056 B1 EP2863056 B1 EP 2863056B1
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- EP
- European Patent Office
- Prior art keywords
- machine
- mortar
- outlet opening
- hopper
- plaster
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/1238—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices
- B28C5/1292—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices with rotating stirring and feeding or discharging means fixed on the same axis, e.g. in an inclined container fed at its lower part
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
- F04B15/023—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous supply of fluid to the pump by gravity through a hopper, e.g. without intake valve
Definitions
- the present invention relates to a machine for pumping mortar, plaster, concrete or similar of the type specified in the preamble of the first claim.
- mortars Various types of machines for pumping mortar, plaster, concrete, self-levelling screeds and the like, hereinafter simply called mortars, are currently known of.
- plastering machines are known of.
- Such plastering machines comprise a first container, inside which binders, aggregates and water are placed and mixed to prepare mortar or the like in the fluid state, in particular a thick fluid.
- Such first container comprises a mixer, suitable for mixing said components. The mortar is then fed, still in the fluid state, into a hopper below.
- the mortar is further mixed and conveyed by said hopper, to the bottom thereof. From the bottom of the hopper the mortar is then conveyed to a pump.
- the pump is lastly suitable to spray the mortar with the help of a jet of compressed air, at a wall or the like to be covered by the mortar and in particular plastered.
- Similar machines for pumping mortar, plaster, concretes or the like are described for example in the patent applications MA-A-20978 , US-A-3807706A , DE-A-10011487 , DE-A-3809661 .
- said machines have a secondary output, placed on the bottom of the hopper and with the output direction substantially perpendicular to the direction of the main extension axis of the auger, which permits the emptying of the mortar in the cleaning phase.
- Cleaning is then carried out by operators using jets of water, by means of high pressure water jets or the like on the bottom of the hopper.
- the technical task according to the present invention is to devise a machine for pumping mortar, plaster, concrete or the like able to substantially overcome the drawbacks mentioned.
- one important aim of the invention is to obtain a machine for pumping mortar, plaster, concrete or the like which is quick and easy to clean.
- reference numeral 1 globally denotes the machine for pumping mortar, plaster, concrete or the like according to the invention.
- mortar It pumps mortar, concrete, plaster or self-levelling screeds, or other similar materials having a cement matrix or not. Below solely the term mortar will be used for convenience.
- the machine 1 is a plastering machine or a machine for pumping or spraying mortar, concrete, plaster or self-levelling screeds.
- plastering machines 1 comprise a first section 50, in which the mortar is made.
- the first section 50 comprises a container 51 inside which binders, aggregates, water, premixed materials and the like, and mixing means 52, such as a mixer, of said components are placed, to prepare the mortar.
- the mortar is then poured into a hopper 2 below.
- the hopper 2 is suitable to convey the mortar in a fluid state on its bottom 2a. It preferably substantially has the shape of a prism with a triangular base, with an axis placed in a horizontal position and in such a way that one of the edges parallel to the axis constitutes the bottom 2a. Said bottom 2a thus has a preferably straight, main extension trajectory.
- the machine 1 comprises mechanical members 3.
- Said mechanical members comprise conveying means 3a of said mortar, and may possibly comprise further devices such as mixers and the like.
- the conveying means 3a are an auger suitably of the type with central shaft.
- the conveying means 3a are suitably the totality of the mechanical members 3.
- the mechanical members 3 are further connected, preferably at the ends of the hopper, with further external connections to the hopper 2, such as an electric motor or hydraulic motors and to the members specified below.
- Such connection is suitably made by means of flexible joints 3d such as universal or elastic joints for the purposes specified below.
- the hopper 2 further comprises an outlet opening 4 for the mortar in the fluid state positioned near the bottom 2a of the hopper 2 and on the front face of the hopper 2. It is substantially an opening in the walls of the hopper 2.
- said conveying means 3a define a movement trajectory 3b of the mortar in the fluid state towards the outlet opening 4.
- This trajectory 3b is preferably rectilinear and coincides with the bottom of the hopper 2.
- the outlet opening 4 has an output direction preferably substantially coincident with the movement trajectory 3b. It thus preferably extends along a surface perpendicular to the movement trajectory 3b at said outlet opening 4.
- the machine 1 further comprises a transfer pipe 6 defining a transfer channel 6a of the mortar in the fluid state, placed beyond the outlet opening 4 and, during use, in fluidic through communication with said outlet opening 4.
- Said transfer pipe 6 comprises inside the channel 6a a pump, preferably a screw pump, including a rotor inside the screw pump suitable to pump the mortar to an output for use.
- the transfer pipe 6 preferably constitutes the stator of the screw pump.
- the screw pump transports the fluid mortar along a pipe 60 and to an ejection nozzle 61.
- the introduction of compressed air is also provided for, which permits spraying of the mortar on walls.
- the compressed air preferably originates from a compressor and channels 62 placed on said machine 1.
- the pipe 6, at the hopper 2 has a flange 9 constrained, preferably integrally, to the transfer pipe 6 and suitable to occupy the outlet opening 4.
- a flange 9 constrained, preferably integrally, to the transfer pipe 6 and suitable to occupy the outlet opening 4.
- Inside the flange an inlet opening 9a is provided in fluidic through communication with the transfer channel 6 and with the outlet opening 4.
- the machine 1 innovatively comprises drive means 5 suitable to move the mechanical members 3 and the transfer pipe 6 without dismantling, in the direction away from the bottom 2a of the hopper 2, to facilitate the cleaning operations of said hopper 2.
- the expression without dismantling is understood to mean that said mechanical members 3 and/or the transfer pipe 6 are not dismantled or detached from the machine 1 and/or each other.
- the drive means 5 are therefore obviously not quick dismantling systems of the machine 1.
- the dismantling of the machine cannot in fact be considered a movement of the parts, given that no real distancing of the mechanical members 3 and transfer pipe 6 away from the bottom ensues.
- Said mechanical members 3 may thus be substantially lifted from the bottom by means of a translation, preferably in the vertical direction, or, alternatively, through a rotation around an axis parallel to the movement trajectory 3a with its centre in one end of the drive means 5.
- the drive means 5 are also suitable, as well as for moving the transfer pipe 6, to free the outlet opening 4 so as to allow, for cleaning operations, the output of the mortar from the hopper 2 through the outlet opening 4 towards the outside environment and not into the transfer channel 6a.
- the drive means 5 are suitable to move the flange 9 so as to free the outlet opening 4.
- the mechanical members 3 are preferably connected to the pipe 6, more in particular are directly constrained to the inner rotor of the screw pump. Consequently the lifting of the flange 9 causes the movement of the pipe 6 which involves the lifting of the screw pump and of the inner rotor and, consequently, the lifting of the mechanical members 3.
- the drive means 5 further comprise actuation means 10 of said drive means 5, consisting of advantageous lever mechanisms, manually activated, or activated by electric motors or otherwise.
- the drive means 5 comprise a skate 5a suitable to allow the translation of the flange 9 along slide gibs 5b or guides by means of the actuation means 10.
- the latter preferably consist of an advantageous lever mechanism suitable to be moved manually.
- it may comprise an electric motor which drives a worm screw for example.
- the lever mechanism also has, preferably, at least two positions of stable equilibrium: a working position, with the flange 9 positioned with the inlet opening 9a on the outlet opening 4 and a cleaning position, with the flange away from the outlet opening 4.
- the drive means 5 comprise a hinge suitable to permit the rotation of the flange 9 around an eccentric axis 7a, and actuation means 10 of the rotation of the flange.
- the lever mechanism also preferably has at least two positions of stable equilibrium: a working position, with the flange 9 positioned on the outlet opening 4, obtained by means of interlocking 7b with an end position, and the cleaning position, with the flange at a distance from the outlet opening 4, achieved by support 7c of a lever belonging to the lever mechanism.
- the machine 1 also comprises a switch, suitable to stop or permit the power supply of the mechanical members 3.
- Said switch permits the power supply of the mechanical members 3 automatically in the configuration of use, when the mechanical members 3 are near the bottom 2a of the hopper 2, and interrupts the electrical connection when the mechanical members 3 are in the cleaning configuration i.e. away from bottom 2a of the hopper 2.
- Such switch permits safe cleaning of the machine 1 and prevents hands from being inserted in the opening 4 in correspondence with the auger when it is active.
- the machine 1 is used like a machine of the known type, such as a known plastering machine.
- the aggregates, binders and water are inserted in the first container 51 and the mortar, concrete, plaster or self-levelling screeds are made by means of the mixing means 52.
- the mortar is transported into the hopper 2 and here positions itself on the bottom 2a from where it is pushed by the conveying means 3a, in particular by the auger, towards the outlet 4 and then through the inlet opening 9a of the flange 9.
- the transfer channel 6a is in fluidic through connection with the outlet opening 4 and consequently with the hopper 2.
- the inlet opening 9a of the flange 9 is in fluidic through connection with the outlet opening 4.
- the mortar still in the fluid state, is thus inside the channel 6a, where the screw pump which transports it along the pipe 60 towards the ejection nozzle 61 is positioned.
- the air is introduced, which flows along the channels 62 and permits the spraying of the mortar over a wall to be plastered or the like.
- the mechanical members 3 are distanced from the bottom by means of the drive means 5 and placed in the cleaning position at a distance, relative to the position of use, from the bottom 2a of the hopper 2. Furthermore, the transfer channel 6a is not in fluidic through connection with the outlet opening 4 since moved by means of said drive means 5.
- the outlet opening 4 is in fact in fluidic through connection with the hopper 2 and the outside environment.
- the actuation means 10 by means of the actuation means 10, the flange 9 is moved away from the outlet 4. Together with the flange 9 and the pipe 6 the mechanical members 3 are also moved. The movement preferably takes place via the lever mechanisms shown and described or with said motor means.
- the invention achieves some important advantages.
- the machine 1 permits quick and accessible cleaning.
- the mechanical members 3, in particular the auger do not interfere with the bottom of the hopper in the cleaning phase and any solidified lumps are quickly removed without manual intervention.
- outlet opening 4 coincides with the output area of the mortar during use means that it is placed in an ideal position, and in particular that its surface is perpendicular to the movement trajectory 3b at said outlet opening 4.
- the opening used for emptying thus permits a rapid emptying of the residues.
- the machine 1 can be easily and quickly put into the use and cleaning configurations.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Description
- The present invention relates to a machine for pumping mortar, plaster, concrete or similar of the type specified in the preamble of the first claim.
- Various types of machines for pumping mortar, plaster, concrete, self-levelling screeds and the like, hereinafter simply called mortars, are currently known of.
- In particular, plastering machines are known of. Such plastering machines comprise a first container, inside which binders, aggregates and water are placed and mixed to prepare mortar or the like in the fluid state, in particular a thick fluid. Such first container comprises a mixer, suitable for mixing said components. The mortar is then fed, still in the fluid state, into a hopper below.
- In said hopper the mortar is further mixed and conveyed by said hopper, to the bottom thereof. From the bottom of the hopper the mortar is then conveyed to a pump.
- The pump is lastly suitable to spray the mortar with the help of a jet of compressed air, at a wall or the like to be covered by the mortar and in particular plastered. Similar machines for pumping mortar, plaster, concretes or the like are described for example in the patent applications
MA-A-20978 US-A-3807706A DE-A-10011487 ,DE-A-3809661 . - Said plastering machines achieve enormous advantages in terms of production speed and simplicity of use.
- For such reasons, said machines are widespread throughout the world and are available in many versions and sizes.
- The prior art described above has several significant drawbacks.
- In fact, such machines must be cleaned of the residual mortar after each work session, so either daily or twice a day. Not cleaning the machine would, in fact, result in the solidification of the mortar, in particular on the bottom of the hopper, and the consequent complete obstruction of the machine itself.
- To such purpose, said machines have a secondary output, placed on the bottom of the hopper and with the output direction substantially perpendicular to the direction of the main extension axis of the auger, which permits the emptying of the mortar in the cleaning phase.
- Cleaning is then carried out by operators using jets of water, by means of high pressure water jets or the like on the bottom of the hopper.
- However, such cleaning is complicated by the interaction of the auger or of the mechanical members present, and the mortar, which often forms hardened blocks at such points.
- At the secondary output blocks of hardened mortar difficult to dissolve, which require mechanical intervention, are also frequently formed.
- Furthermore said secondary output is often complex and awkward to open.
- All the said drawbacks slow down the cleaning phase of the machine making it very difficult and thus expensive.
- To partially overcome said drawbacks the patent application
CH-A-667036 - In this situation the technical task according to the present invention is to devise a machine for pumping mortar, plaster, concrete or the like able to substantially overcome the drawbacks mentioned.
- Within the sphere of said technical purpose one important aim of the invention is to obtain a machine for pumping mortar, plaster, concrete or the like which is quick and easy to clean.
- The technical purpose and specified aims are achieved by a machine for pumping mortar, plaster, concrete or the like as claimed in the appended
Claim 1. Preferred embodiments are described in the dependent claims. - The characteristics and advantages of the invention are clearly evident from the following detailed description of a preferred embodiment thereof, with reference to the accompanying drawings, in which:
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Fig. 1 shows an assembly of the machine according to the invention; -
Fig. 2a shows an axonometric view of a first example of a machine according to the invention in a first configuration; -
Fig. 2b is a view ofFig 2a in a second configuration; -
Fig. 3a shows a sagittal cross-section of the first example of a machine according to the invention in a first configuration; -
Fig. 3b is a view ofFig 3a in a second configuration; -
Fig. 4a shows an axonometric view of a second example of a machine according to the invention in a first configuration; -
Fig. 4b is a view ofFig 4a in a second configuration; -
Fig. 5a shows a sagittal cross-section of the second example of the machine according to the invention in a first configuration; and -
Fig. 5b is a view ofFig 5a in a second configuration. - With reference to said drawings,
reference numeral 1 globally denotes the machine for pumping mortar, plaster, concrete or the like according to the invention. - It pumps mortar, concrete, plaster or self-levelling screeds, or other similar materials having a cement matrix or not. Below solely the term mortar will be used for convenience.
- The preferred embodiment provides that the
machine 1 is a plastering machine or a machine for pumping or spraying mortar, concrete, plaster or self-levelling screeds. - As known,
plastering machines 1 comprise afirst section 50, in which the mortar is made. For example thefirst section 50 comprises acontainer 51 inside which binders, aggregates, water, premixed materials and the like, and mixing means 52, such as a mixer, of said components are placed, to prepare the mortar. - The mortar is then poured into a
hopper 2 below. - The
hopper 2 is suitable to convey the mortar in a fluid state on itsbottom 2a. It preferably substantially has the shape of a prism with a triangular base, with an axis placed in a horizontal position and in such a way that one of the edges parallel to the axis constitutes the bottom 2a. Saidbottom 2a thus has a preferably straight, main extension trajectory. - At the
bottom 2a of thehopper 2 themachine 1 comprisesmechanical members 3. Said mechanical members compriseconveying means 3a of said mortar, and may possibly comprise further devices such as mixers and the like. Preferably, theconveying means 3a are an auger suitably of the type with central shaft. Furthermore, the conveying means 3a are suitably the totality of themechanical members 3. - The
mechanical members 3 are further connected, preferably at the ends of the hopper, with further external connections to thehopper 2, such as an electric motor or hydraulic motors and to the members specified below. Such connection is suitably made by means offlexible joints 3d such as universal or elastic joints for the purposes specified below. - The
hopper 2 further comprises an outlet opening 4 for the mortar in the fluid state positioned near thebottom 2a of thehopper 2 and on the front face of thehopper 2. It is substantially an opening in the walls of thehopper 2. - Consequently, said conveying
means 3a define amovement trajectory 3b of the mortar in the fluid state towards the outlet opening 4. Thistrajectory 3b is preferably rectilinear and coincides with the bottom of thehopper 2. Furthermore, theoutlet opening 4 has an output direction preferably substantially coincident with themovement trajectory 3b. It thus preferably extends along a surface perpendicular to themovement trajectory 3b at saidoutlet opening 4. - The
machine 1 further comprises atransfer pipe 6 defining atransfer channel 6a of the mortar in the fluid state, placed beyond theoutlet opening 4 and, during use, in fluidic through communication with saidoutlet opening 4. Saidtransfer pipe 6 comprises inside thechannel 6a a pump, preferably a screw pump, including a rotor inside the screw pump suitable to pump the mortar to an output for use. In this case, thetransfer pipe 6 preferably constitutes the stator of the screw pump. - In plastering machines the screw pump transports the fluid mortar along a
pipe 60 and to anejection nozzle 61. At the nozzle the introduction of compressed air is also provided for, which permits spraying of the mortar on walls. The compressed air preferably originates from a compressor andchannels 62 placed on saidmachine 1. - Preferably the
pipe 6, at thehopper 2 has aflange 9 constrained, preferably integrally, to thetransfer pipe 6 and suitable to occupy theoutlet opening 4. Inside the flange aninlet opening 9a is provided in fluidic through communication with thetransfer channel 6 and with theoutlet opening 4. - The
machine 1 innovatively comprises drive means 5 suitable to move themechanical members 3 and thetransfer pipe 6 without dismantling, in the direction away from the bottom 2a of thehopper 2, to facilitate the cleaning operations of saidhopper 2. - The expression without dismantling is understood to mean that said
mechanical members 3 and/or thetransfer pipe 6 are not dismantled or detached from themachine 1 and/or each other. The drive means 5 are therefore obviously not quick dismantling systems of themachine 1. The dismantling of the machine cannot in fact be considered a movement of the parts, given that no real distancing of themechanical members 3 and transferpipe 6 away from the bottom ensues. - Said
mechanical members 3 may thus be substantially lifted from the bottom by means of a translation, preferably in the vertical direction, or, alternatively, through a rotation around an axis parallel to themovement trajectory 3a with its centre in one end of the drive means 5. - The drive means 5 are also suitable, as well as for moving the
transfer pipe 6, to free theoutlet opening 4 so as to allow, for cleaning operations, the output of the mortar from thehopper 2 through theoutlet opening 4 towards the outside environment and not into thetransfer channel 6a. - In particular, the drive means 5 are suitable to move the
flange 9 so as to free theoutlet opening 4. - Furthermore, the
mechanical members 3 are preferably connected to thepipe 6, more in particular are directly constrained to the inner rotor of the screw pump. Consequently the lifting of theflange 9 causes the movement of thepipe 6 which involves the lifting of the screw pump and of the inner rotor and, consequently, the lifting of themechanical members 3. - The drive means 5 further comprise actuation means 10 of said drive means 5, consisting of advantageous lever mechanisms, manually activated, or activated by electric motors or otherwise.
- More in detail, in a first variant (
Figs. 2a ,2b ,3a ,3b ), the drive means 5 comprise askate 5a suitable to allow the translation of theflange 9 alongslide gibs 5b or guides by means of the actuation means 10. The latter preferably consist of an advantageous lever mechanism suitable to be moved manually. Alternatively, it may comprise an electric motor which drives a worm screw for example. The lever mechanism also has, preferably, at least two positions of stable equilibrium: a working position, with theflange 9 positioned with theinlet opening 9a on theoutlet opening 4 and a cleaning position, with the flange away from theoutlet opening 4. - In a second variant (
Figs. 4a ,4b ,5a ,5b ), the drive means 5 comprise a hinge suitable to permit the rotation of theflange 9 around aneccentric axis 7a, and actuation means 10 of the rotation of the flange. In this case too the lever mechanism also preferably has at least two positions of stable equilibrium: a working position, with theflange 9 positioned on theoutlet opening 4, obtained by means of interlocking 7b with an end position, and the cleaning position, with the flange at a distance from theoutlet opening 4, achieved bysupport 7c of a lever belonging to the lever mechanism. - The
machine 1 also comprises a switch, suitable to stop or permit the power supply of themechanical members 3. Said switch permits the power supply of themechanical members 3 automatically in the configuration of use, when themechanical members 3 are near the bottom 2a of thehopper 2, and interrupts the electrical connection when themechanical members 3 are in the cleaning configuration i.e. away from bottom 2a of thehopper 2. Such switch permits safe cleaning of themachine 1 and prevents hands from being inserted in theopening 4 in correspondence with the auger when it is active. - The functioning of a
machine 1 for pumping mortar, plaster, concrete or the like, described above in a structural sense, is described below. It further defines a new method. - During use, the
machine 1 is used like a machine of the known type, such as a known plastering machine. - In particular, during use (
Figs. 2a, 3a ,4a, 5a ), the aggregates, binders and water are inserted in thefirst container 51 and the mortar, concrete, plaster or self-levelling screeds are made by means of the mixing means 52. - The mortar is transported into the
hopper 2 and here positions itself on the bottom 2a from where it is pushed by the conveyingmeans 3a, in particular by the auger, towards theoutlet 4 and then through the inlet opening 9a of theflange 9. - All said operations are carried out when in use with the
mechanical members 3 in the position of use and thus close to the bottom 2a of thehopper 2. Furthermore, thetransfer channel 6a is in fluidic through connection with theoutlet opening 4 and consequently with thehopper 2. In particular, the inlet opening 9a of theflange 9 is in fluidic through connection with theoutlet opening 4. - The mortar, still in the fluid state, is thus inside the
channel 6a, where the screw pump which transports it along thepipe 60 towards theejection nozzle 61 is positioned. Here the air is introduced, which flows along thechannels 62 and permits the spraying of the mortar over a wall to be plastered or the like. - After use the cleaning step begins.
- In said cleaning step (
Figs. 2b, 3b ,4b, 5b ) themechanical members 3 are distanced from the bottom by means of the drive means 5 and placed in the cleaning position at a distance, relative to the position of use, from the bottom 2a of thehopper 2. Furthermore, thetransfer channel 6a is not in fluidic through connection with theoutlet opening 4 since moved by means of said drive means 5. Theoutlet opening 4 is in fact in fluidic through connection with thehopper 2 and the outside environment. In particular, by means of the actuation means 10, theflange 9 is moved away from theoutlet 4. Together with theflange 9 and thepipe 6 themechanical members 3 are also moved. The movement preferably takes place via the lever mechanisms shown and described or with said motor means. - The operators can thus clean the hopper very quickly with water jets. In fact the residues, liquid or solidified, do not stop at the
members 3 but can flow freely onto the bottom of the hopper and follow the same path that the mortar follows during use. Such path appropriately does not provide for corners or similar obstacles, since theoutlet 4 has an output direction substantially coincident to themovement trajectory 3b. - After cleaning by means of the drive means 5 it is possible to return the devices to the configurations of use, and thus draw the
members 3 towards the bottom of the hopper again and align thechannel 6a with theoutlet opening 4. - The invention achieves some important advantages.
- In fact, the
machine 1 permits quick and accessible cleaning. - In detail, the
mechanical members 3, in particular the auger, do not interfere with the bottom of the hopper in the cleaning phase and any solidified lumps are quickly removed without manual intervention. - Furthermore, the fact that the
outlet opening 4 coincides with the output area of the mortar during use means that it is placed in an ideal position, and in particular that its surface is perpendicular to themovement trajectory 3b at saidoutlet opening 4. - The opening used for emptying thus permits a rapid emptying of the residues. Moreover, the
machine 1 can be easily and quickly put into the use and cleaning configurations. - Furthermore, the removal operation of the
mechanical organs 3 and of thetransfer pipe 6 is very rapid and effective at the same time. Indeed the applicant has verified that it is not necessary to completely dismantle said elements from themachine 1 to achieve optimal cleaning of the machine itself, but that it is sufficient to distance themechanical members 3 and thetransfer pipe 6 from the bottom of the hopper, without dismantling them. - Variations may be made to the invention without departing from the scope of the inventive concept expressed in the independent claims and by their technical equivalents. All details may be replaced with equivalent elements and the materials, shapes and dimensions may be any within the scope of the independent claims and by their technical equivalents.
Claims (9)
- Machine (1) for pumping mortar, plaster, concrete or the like, comprising:- a hopper (2) for the conveyance of said mortar, plaster, concrete or the like in the fluid state on the bottom (2a) of said hopper (2),- mechanical members (3) positioned on the bottom (2a) of said hopper (2),- said mechanical members (3) comprising conveying means (3a) of said mortar, plaster, concrete or the like,- an outlet opening (4) for said mortar, plaster, concrete or the like in the fluid state positioned near said bottom (2a) of said hopper (2),- said conveying means (3a) defining a movement trajectory (3b) of said mortar, plaster, concrete or the like in the fluid state towards said outlet opening (4).- a transfer pipe (6) defining a transfer channel (6a) of said mortar, plaster, concrete or the like in the fluid state, positioned beyond said outlet opening (4), and during use, in fluidic through communication with said output (4),- characterised in that said machine comprises drive means (5) suitable to move, without dismantling, said mechanical members (3) and said transfer pipe (6) in the direction away from said bottom (2a) of said hopper (2) to facilitate the cleaning of the hopper (2).
- Machine (1) according to claim 1, wherein said distancing of said transfer pipe (6) is suitable to free said outlet opening (4) so as to allow, for said cleaning operations, the output of said mortar, plaster, concrete or the like from said hopper (2) through said outlet opening (4) towards the outside environment and not in said transfer channel (6a).
- Machine (1) according to claim 2, comprising: a flange (9) constrained to said transfer pipe (6) and suitable to occupy said outlet opening (4), said flange (9) comprising an inlet opening (9a) in fluidic through communication with said transfer channel (6a) and with said outlet opening (4), and wherein said drive means (5) are suitable to move said flange (9) so as to free said outlet opening (4).
- Machine (1) according to claim 3, wherein said drive means (5) comprise a skate suitable to permit the translation of said flange (9) and actuation means (10) of said translation.
- Machine (1) according to claim 3, wherein said drive means (5) comprise a hinge suitable to permit the rotation of said flange (9) around an eccentric axis and actuation means (10) of said rotation.
- Machine (1) according to one or more of the previous claims, wherein said transfer pipe (6) comprises, inside said transfer channel (6a), a screw pump, including an inner rotor, said rotor being coupled to said mechanical members (3).
- Machine (1) according to one or more of the previous claims, wherein said outlet opening (4) extends preferably along a surface perpendicular to said movement trajectory (3b) at said outlet opening (4).
- Machine (1) according to one or more of the previous claims, consisting of a plastering machine for mortars.
- Machine (1) according to one or more of the claims 1-7, consisting of a machine for pumping self-levelling screeds.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1356229A FR3007780A1 (en) | 2013-06-27 | 2013-06-27 | MACHINE FOR PUMPING MORTARS, PLASTERS, CONCRETES OR THE LIKE |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2863056A1 EP2863056A1 (en) | 2015-04-22 |
EP2863056B1 true EP2863056B1 (en) | 2016-03-30 |
Family
ID=49620047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14174220.5A Active EP2863056B1 (en) | 2013-06-27 | 2014-06-26 | Machine for pumping mortar, plaster, concrete or similar |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2863056B1 (en) |
FR (1) | FR3007780A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3038331B1 (en) | 2015-06-30 | 2019-05-17 | Eurl Baumer Damien | SYSTEM AND METHOD FOR PROJECTING LIGHT CONCRETE INSULATION |
CN106592977A (en) * | 2016-12-07 | 2017-04-26 | 合肥国瑞集成建筑科技有限公司 | Efficient horizontal mixing turning over feeding spraying building machine |
CN114633374B (en) * | 2022-03-28 | 2022-12-06 | 重庆沪江新型建材有限公司 | Special mortar production equipment and production process |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3807706A (en) * | 1969-06-30 | 1974-04-30 | Irl Daffin Associates | Concrete handling arrangement |
CH667036A5 (en) * | 1985-03-26 | 1988-09-15 | Rieser & Lepri Ag | Mortar or plaster mixing machine - is driven by electric motor and mounted on wheelbarrow |
MA20978A1 (en) * | 1987-05-18 | 1987-12-31 | Gilles Pierre | Method for manufacturing walls in pises or stabilized earth, spraying machine adapted to its use and wall thus obtained |
DE3809661C2 (en) * | 1988-03-23 | 1999-02-18 | Reburg Patentverwertungs Gmbh | Device for continuously mixing a building material |
DE10011487A1 (en) * | 2000-03-09 | 2001-09-13 | Badum Technics Gmbh & Co Kg P | Mixture sieve - catchment basket at inlet of eccentric worm pump for moving moist mixtures such as plaster or tiled floor mortar is at pump inlet in storage container on pump drive shaft with which it rotates |
-
2013
- 2013-06-27 FR FR1356229A patent/FR3007780A1/en active Pending
-
2014
- 2014-06-26 EP EP14174220.5A patent/EP2863056B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
FR3007780A1 (en) | 2015-01-02 |
EP2863056A1 (en) | 2015-04-22 |
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