WO2000002665A1 - Method and device for automatically switching a mortar gun on and off - Google Patents
Method and device for automatically switching a mortar gun on and off Download PDFInfo
- Publication number
- WO2000002665A1 WO2000002665A1 PCT/EP1999/004615 EP9904615W WO0002665A1 WO 2000002665 A1 WO2000002665 A1 WO 2000002665A1 EP 9904615 W EP9904615 W EP 9904615W WO 0002665 A1 WO0002665 A1 WO 0002665A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressure
- pulse generator
- spray gun
- control pulse
- switching
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
- E04F21/06—Implements for applying plaster, insulating material, or the like
- E04F21/08—Mechanical implements
- E04F21/12—Mechanical implements acting by gas pressure, e.g. steam pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/085—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to flow or pressure of liquid or other fluent material to be discharged
- B05B12/087—Flow or presssure regulators, i.e. non-electric unitary devices comprising a sensing element, e.g. a piston or a membrane, and a controlling element, e.g. a valve
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1404—Arrangements for supplying particulate material
- B05B7/1431—Arrangements for supplying particulate material comprising means for supplying an additional liquid
- B05B7/1436—Arrangements for supplying particulate material comprising means for supplying an additional liquid to a container where the particulate material and the additional liquid are brought together
Definitions
- the invention relates to a method and a device for automatically switching a mortar spraying machine on and off, comprising a preferably electromotive driven mortar pump that can be switched on and off with a motor switch, a feed hose that can be connected to it, and at the end a spray gun with a shut-off valve and a control pulse generator that interacts with it .
- the spray gun operator When spraying mortar, the spray gun operator must be able to interrupt the flow of mortar from the spray gun as quickly as possible and restart it for a short time. It is known to use hand-operated button switches for this purpose, which are connected to and master the motor switch of the mortar pump with a correspondingly long control cable. The surgeon is either forced to search for the button switch with the spray gun in his hand and then press it, or to close the spray gun shut-off valve and then to actuate the motor switch with an unavoidable time delay by pressing the push button to stop the pump motor.
- the pump then works for a time without delivery against increased pump pressure, which causes impermissible stress on the pump and increased wear on its delivery elements.
- the spraying work is delayed unnecessarily long and the operator of the spray gun is distracted from the necessary care of his work. There is therefore an urgent need in practice to facilitate the process of switching a mortar spraying machine on and off for the operator of the spray gun and to have it carried out automatically by an automatic device, independently of conscious action.
- the invention is therefore based on the object of specifying a method and a device for automatically switching off and on a mortar spraying machine of the type mentioned in the preamble of claim 1, by means of which the required switching operations depend only on the actuation of the shut-off valve be carried out on the spray gun, but otherwise automatically and with as little delay as possible.
- An essential aspect of the task is that the means used to solve them are uncomplicated, practical and can be implemented with the most economical means possible.
- the pulse generator can be activated by pressure differences in the conveying medium arising when the spray gun is closed or opened, and when a predeterminable upper pressure limit is exceeded as a control signal for switching off when the spray gun is closed the mortar pump, and if the pressure drops below a predeterminable lower pressure limit as a result of opening the spray gun, a control signal for restarting the mortar pump is generated.
- the method according to the invention enables automation of the switching-off and switching-on process with great advantage and simplifies the operator's work, the working method being improved by constant attention of the operator and, on the other hand, by the instantaneous switching on and switching off of the mortar pump of the energy requirement and more mechanically Wear can be minimized.
- control signals are transmitted to the motor switch using a control cable.
- control signals are carried out by means of wireless remote transmission with a limited range of IR radiation or another magnetic radiation.
- Such remote transmissions have been state of the art for a long time, for example, when opening and closing a garage door, when opening and closing a car door lock and other wireless control processes. It therefore makes sense to apply such a remote transmission technology to the present case of automatically switching a mortar spraying machine on and off.
- One embodiment of the method provides that the pressure of the delivery medium in the pressure hose, preferably in the connection area in front of the spray gun, is transmitted to the control pulse generator by hydraulic coupling.
- the transmission can also be transmitted to this by pneumatic coupling with a control pulse generator designed as a pressure switch.
- a device for automatically switching off and restarting a mortar spraying machine of the type mentioned in the preamble of claim 1, in particular for carrying out the method according to the invention is characterized in that a pressure-sensitive functional element is arranged between the delivery hose and spray gun, which is used to generate switching pulses for starting - Or switching on the motor switch of the mortar pump is designed to cooperate with a control pulse generator, and the means for transmitting the switching pulses from the control implement sensor to the motor switch are provided. Further advantageous configurations of the device are provided in accordance with the subclaims.
- Figure 1 a purely schematic representation in the form of a family tree of the device according to the invention
- Figure 2 in side view and in section, a spray gun with a pressure-sensitive functional element and a control pulse generator;
- Figure 3 a pressure-sensitive functional element with means for mechanical coupling between the pressure of the medium and a control pulse generator designed as a relay.
- the device shown purely schematically in FIG. 1 in the manner of a family tree has a pressure-sensitive functional element 10 between the delivery hose 4 and spray gun 5, which is designed to cooperate with a control pulse generator 8 for the purpose of generating switching pulses for switching the motor switch 3 of the mortar pump 1 on or off.
- a control cable 9 is provided as a means for transmitting the switching pulses from the control pulse generator 8 to the motor switch 3.
- the mortar pump 1 is usually designed as a mohno (also oineau) and capable, depending on the pumpability and the consistency of the mortar to produce pump pressures up to the order of 25 bar.
- the pump 1 has a motor 2 with the motor switch 3, to which the control cable 9 is connected, or the output of a receiver (not shown) of a wireless transmission device.
- the mortar pump 1 sucks mortar 16 from a mortar container 16 with the suction line 17 and presses it via the delivery hose 4 into the spray gun 5, which is designed with a shut-off valve 6 with a handle 7. Upstream of this is the pressure-sensitive functional element 10, the pressure state of which is transmitted to the control pulse generator 8 by hydraulic, pneumatic or mechanical coupling.
- FIG. 2 shows the spray gun 5 with a grommet on the outlet side and an integrated shut-off valve 6.
- This is usually designed as a ball valve in a manner familiar to the person skilled in the art and has the handle 7 for actuation.
- the pressure-sensitive functional element 10 is arranged upstream of this, according to the invention inside, through which the pumped medium flows, when the pumped medium pressure rises, it expands and expands, which is enclosed by an unrelenting jacket 13 to form an annular displacer chamber 12 containing a displacer medium.
- the displacement medium can be a liquid or a gas.
- the device has a pressure-actuatable control pulse generator 8, which is connected to the displacement medium or to the expandable hose sleeve 11 with the generation of pressure-dependent switching signals.
- the control pulse generator 8 can have, for example, a pressurizable membrane which closes a contact at elevated pressure and opens the contact again at reduced pressure and thus generates the switching pulses required to actuate the motor switch 3.
- a pressure monitoring device of the aforementioned type according to patent specification DE 32 15 222 C2 for installation in a pipe or hose line
- the device has a pressure-actuatable control pulse generator 8, which is connected to the displacement medium or to the stretchable hose cuff with the generation of pressure-dependent switching signals.
- the control pulse generator 8 can be a pressure switch known per se, as is shown in principle in FIG. 2.
- FIG. 3 use can also be made of the measure, as shown in FIG. 3, in that a pressure-related expansion of the elastically stretchable sleeve 11 is transmitted directly to a switching relay 15 by mechanical means, for example a pressure pin 14.
- the device in FIG. 3, just like in FIG. 2, has a hose nozzle 18 for connecting the delivery hose 4, and on the other side a connecting thread 19 for screwing on the spray gun 5 with the ball valve 6.
- the invention is straightforward and optimally fulfills the task set out above.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL99345534A PL345534A1 (en) | 1998-07-09 | 1999-07-02 | Method and device for automatically switching a mortar gun on and off |
SK30-2001A SK302001A3 (en) | 1998-07-09 | 1999-07-02 | METHOD AND DEVICE FOR AUTOMATICALLY SWITCHING A MORTAR GUN ON ANDì (54) OFF |
HU0103436A HUP0103436A3 (en) | 1998-07-09 | 1999-07-02 | Method and device for automatically switching a mortar gun on and off |
EP99934564A EP1093400A1 (en) | 1998-07-09 | 1999-07-02 | Method and device for automatically switching a mortar gun on and off |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19830731.4 | 1998-07-09 | ||
DE19830731A DE19830731A1 (en) | 1998-07-09 | 1998-07-09 | Method and device for automatically switching a mortar spraying machine on and off |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000002665A1 true WO2000002665A1 (en) | 2000-01-20 |
Family
ID=7873487
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1999/004615 WO2000002665A1 (en) | 1998-07-09 | 1999-07-02 | Method and device for automatically switching a mortar gun on and off |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1093400A1 (en) |
CZ (1) | CZ20019A3 (en) |
DE (1) | DE19830731A1 (en) |
HU (1) | HUP0103436A3 (en) |
PL (1) | PL345534A1 (en) |
SK (1) | SK302001A3 (en) |
WO (1) | WO2000002665A1 (en) |
YU (1) | YU1301A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2842849B1 (en) * | 2002-07-26 | 2005-08-26 | Lancy Mixjet | VARIABLE FLOW PUMP CONTROL SYSTEM FOR MACHINE FOR PROJECTING OR PUTTING CONCRETE OR MORTAR |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3424883A (en) * | 1965-11-15 | 1969-01-28 | Don E Heskett | Fluid conducting device and pressure sensitive control means |
US4212591A (en) * | 1978-08-10 | 1980-07-15 | Binks Manufacturing Company | Pressure control for pumps |
US4850513A (en) * | 1987-07-31 | 1989-07-25 | Porter Donald L | Control system and method for high production plaster pump |
US4992633A (en) * | 1989-07-13 | 1991-02-12 | Wagner Spray Tech Corporation | Contained pressure activated switch |
DE9405509U1 (en) * | 1994-03-31 | 1995-08-03 | Schuerenberg Beton Spritzmasch | Device for producing a mixture of mixing water and concrete additives to be fed to a mixing nozzle |
US5711483A (en) * | 1996-01-24 | 1998-01-27 | Durotech Co. | Liquid spraying system controller including governor for reduced overshoot |
-
1998
- 1998-07-09 DE DE19830731A patent/DE19830731A1/en not_active Withdrawn
-
1999
- 1999-07-02 WO PCT/EP1999/004615 patent/WO2000002665A1/en not_active Application Discontinuation
- 1999-07-02 PL PL99345534A patent/PL345534A1/en unknown
- 1999-07-02 SK SK30-2001A patent/SK302001A3/en unknown
- 1999-07-02 EP EP99934564A patent/EP1093400A1/en not_active Withdrawn
- 1999-07-02 YU YU1301A patent/YU1301A/en unknown
- 1999-07-02 CZ CZ20019A patent/CZ20019A3/en unknown
- 1999-07-02 HU HU0103436A patent/HUP0103436A3/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3424883A (en) * | 1965-11-15 | 1969-01-28 | Don E Heskett | Fluid conducting device and pressure sensitive control means |
US4212591A (en) * | 1978-08-10 | 1980-07-15 | Binks Manufacturing Company | Pressure control for pumps |
US4850513A (en) * | 1987-07-31 | 1989-07-25 | Porter Donald L | Control system and method for high production plaster pump |
US4992633A (en) * | 1989-07-13 | 1991-02-12 | Wagner Spray Tech Corporation | Contained pressure activated switch |
DE9405509U1 (en) * | 1994-03-31 | 1995-08-03 | Schuerenberg Beton Spritzmasch | Device for producing a mixture of mixing water and concrete additives to be fed to a mixing nozzle |
US5711483A (en) * | 1996-01-24 | 1998-01-27 | Durotech Co. | Liquid spraying system controller including governor for reduced overshoot |
Also Published As
Publication number | Publication date |
---|---|
SK302001A3 (en) | 2001-08-06 |
CZ20019A3 (en) | 2002-02-13 |
EP1093400A1 (en) | 2001-04-25 |
HUP0103436A3 (en) | 2002-02-28 |
HUP0103436A2 (en) | 2002-01-28 |
YU1301A (en) | 2003-01-31 |
DE19830731A1 (en) | 2000-01-13 |
PL345534A1 (en) | 2001-12-17 |
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