WO2010071390A1 - Dosing device using electronic weight sensor - Google Patents
Dosing device using electronic weight sensor Download PDFInfo
- Publication number
- WO2010071390A1 WO2010071390A1 PCT/MX2009/000006 MX2009000006W WO2010071390A1 WO 2010071390 A1 WO2010071390 A1 WO 2010071390A1 MX 2009000006 W MX2009000006 W MX 2009000006W WO 2010071390 A1 WO2010071390 A1 WO 2010071390A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dose
- weight
- sensor
- pressure
- dosing device
- Prior art date
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G13/00—Weighing apparatus with automatic feed or discharge for weighing-out batches of material
- G01G13/24—Weighing mechanism control arrangements for automatic feed or discharge
- G01G13/28—Weighing mechanism control arrangements for automatic feed or discharge involving variation of an electrical variable which is used to control loading or discharge of the receptacle
Definitions
- the technical field of the present invention is mechanical and electrical, since it is a device that uses mobile elements for dosing of granulated material by means of a weight sensor using an electronic pressure transducer.
- the present invention deals with a device that allows dosing material by evaluating its weight with few moving elements and requires a minimum of actuator components, which makes it low maintenance and low energy consumption, additionally it is not susceptible for the material to be dosed It gets stuck due to the shape of the discharge.
- Figure 1 is a view of a side section of the device with its closed gate showing its internal parts.
- Figure 2 is a conventional side view of the device with the gate open.
- Figure 3 is an isometric view of the device with the gate open.
- the Dosing Device by Electronic Weight Sensor described is based on a mechanism consisting of a dose container (no. 1) that accumulates the material to be dosed until reaching the intended weight, the receiver of material (no. 2) where the material accumulates to serve the dose container and an inlet mechanism (no. 3) that makes the material flow to the dose container (no. 1), an exit gate (no. 4) which retains the material in the dose container and can be opened when the predetermined weight has been reached by means of the gate activating element (no. 5) that exerts the force required to open or close the exit gate,
- the dose container is attached to the support arm (no. 6) and the hinge (no.
- the pressure transducer (no. 8) that converts the pressure exerted by the weight of the material to a resistance value electric
- the pressure terminal (no .9) which applies the force of the material weight to the pressure sensor
- the base of the sensor (no. 10) consisting of a flat plate that supports the axis of the hinge and to which the pressure sensor is held.
- the input mechanism (no. 3) is turned on, which is responsible for gradually pushing the material towards the dose container (no. 1), during this process Ia exit gate (no. 4) is kept closed by retaining the material in the dose container, as the material accumulates in said container, the force due to the weight is transmitted mechanically by means of the lever that is made between the support arm (no .6) and the hinge (no. 7) towards the pressure terminal (no. 9), which in turn concentrates the force on the pressure transducer (no. 8) that is fixed to the base of the sensor (no. 10) just below said terminal, the hinge (no.
- the input mechanism (no. 3) must be deactivated, so that material stops entering the dose container (no. 1), then operate the exit gate (no 4) allowing the dose to fall by gravity, being able to detect the change in weight with the pressure transducer and determine when the dose container has been completely emptied, finally the gate activating mechanism (no. 5) is operated. Ready the device to restart its operation for a new dose of material.
Abstract
This invention is used to control the doses of granulated material when the density of the material prevents this from being done by volume or when it is necessary to do so by weight. It comprises a device with an input mechanism and a material output mechanism controlled using servomechanisms, a material recipient and a dose recipient and a pressure sensor that enables the pressure caused by the weight of the material to be measured, it being possible to deactivate the material input mechanism and to open the output hatch to empty the dose by gravity. The purpose of this invention is to provide a device that is easy to use and install for processes that require flexibility in the size of doses by weight of granulated material that enables this type of process to be automated.
Description
DISPOSITIVO DOSIFICADOR MEDIANTE SENSOR ELECTRÓNICO DE DOSING DEVICE BY ELECTRONIC SENSOR OF
* PESO * WEIGHT
CAMPO TÉ¿NICO El campo técnico de Ia presente invención es el mecánico y el eléctrico, dado que trata de un dispositivo que utiliza elementos móviles para dosificación de material granulado mediante sensor de peso utilizando un transductor electrónico de presión.TECHNICAL FIELD The technical field of the present invention is mechanical and electrical, since it is a device that uses mobile elements for dosing of granulated material by means of a weight sensor using an electronic pressure transducer.
ANTECEDENTES DE LA INVENCIÓNBACKGROUND OF THE INVENTION
En los diversos procesos de Ia industria es frecuentemente necesario dosificar materiales en forma granulada, esta necesidad se hace evidente en las máquinas preparadoras de café que hacen Ia molienda in situ. Es en estos casos donde es requerido que dichas dosis estén medidas de forma confiable y, por Io general se trata de materiales cuya densidad puede variar por Io que no es muy recomendable hacerlo por volumen o por tiempo de surtido y es cuando el peso se vuelve en una medida para dosificación indispensable.In the various processes of the industry it is often necessary to dose materials in granular form, this need is evident in the coffee brewing machines that make the grinding in situ. It is in these cases that these doses are required to be measured reliably and, in general, they are materials whose density can vary due to what is not recommended to do so by volume or by time of assortment and that is when the weight becomes in a measure for indispensable dosage.
Existen dosificadores de material como el caso de Ia patente "DosifyingThere are material dispensers as in the case of the "Dosifying" patent
Containers for Granulated Products, Pulverulent Products, Etc." Número US 4,353,487 del inventor José Ferrante, que menciona un dosificador que permite dosificar incluso líquidos, sin embargo su aplicación es manual por agitación y no es aplicable a automatismos directamente. Otra invención relacionada es Ia "Dosing Device for BuIk Material Including Liquids" númeroContainers for Granulated Products, Pulverulent Products, Etc. "US number 4,353,487 of the inventor José Ferrante, which mentions a doser that allows dosing even liquids, however its application is manual by agitation and is not applicable to automatisms directly. Another related invention is Ia "Dosing Device for BuIk Material Including Liquids" number
US 5,265,763 del inventor Harald Heinrici et al. La cual menciona un dispositivo dosificador de material por peso que tiene Ia posibilidad de incluir celdas de carga ya sea para pesar Ia tolva surtidora de material o para pesar todo el dispositivo completo, y un alimentador doble tipo gusano para retirar el material, utiliza un batidor para asentar o remover el material evitando que se atasque, tiene un eje que Ie permite girar para retirar el material en otra posición a Ia de pesaje; sin embargo no cuenta con algún mecanismo de admisión de material, además de tener demasiados elementos móviles requiriendo varios motores para su operación Io que Io convierte en un dispositivo de alto consumo de energía cuando está operando.
La presente invención trata de un dispositivo que permite dosificar material evaluando su peso con pocos elementos móviles y requiere de un mínimo de componentes actuadotes, Io que Io hace de bajo mantenimiento y de poco consumo de energía, adicionalmente no es susceptible que el material a dosificar se atasque debido a Ia forma de Ia descarga.US 5,265,763 of the inventor Harald Heinrici et al. Which mentions a material dosing device by weight that has the possibility of including load cells either to weigh the material supply hopper or to weigh the entire device, and a double worm feeder to remove the material, uses a whisk to settle or remove the material preventing it from getting stuck, it has an axis that allows it to rotate to remove the material in another position to the weighing; however, it does not have any material admission mechanism, in addition to having too many moving elements requiring several motors for its operation, which makes it a high energy consumption device when it is operating. The present invention deals with a device that allows dosing material by evaluating its weight with few moving elements and requires a minimum of actuator components, which makes it low maintenance and low energy consumption, additionally it is not susceptible for the material to be dosed It gets stuck due to the shape of the discharge.
DESCRIPCIÓN DE LA INVENCIÓNDESCRIPTION OF THE INVENTION
Los detalles característicos de este novedoso Dispositivo Dosificador MedianteThe characteristic details of this new Dosing Device Through
Sensor Electrónico De Peso se mués ran claramente en Ia siguiente descripción y en los dibujos que se acompañan, así como una ilustración de aquella y siguiendo los mismos signos de referencia para indicar las partes y las figuras mostradas.Electronic Weight Sensor is clearly shown in the following description and in the accompanying drawings, as well as an illustration thereof and following the same reference signs to indicate the parts and figures shown.
La figura 1 es una vista de un corte lateral del dispositivo con su compuerta cerrada que muestra sus partes internas. La figura 2 es una vista lateral convencional del dispositivo con Ia compuerta abierta.Figure 1 is a view of a side section of the device with its closed gate showing its internal parts. Figure 2 is a conventional side view of the device with the gate open.
La figura 3 es una vista isométrica del dispositivo con Ia compuerta abierta. Con referencia a dichas figuras, el Dispositivo Dosificador Mediante Sensor Electrónico De Peso que se describe esta basado en un mecanismo consistente en un contenedor de dosis (no. 1) que acumula el material a dosificar hasta alcanzar el peso que se pretende, el receptor de material (no. 2) donde se acumula el material para servir al contenedor de dosis y un mecanismo de entrada (no. 3) que hace fluir el material hacia el contenedor de dosis (no. 1), una compuerta de salida (no. 4) que retiene el material en el contenedor de dosis y se puede hacer abrir cuando ya se ha alcanzado el peso predeterminado mediante el elemento activador de Ia compuerta (no. 5) que ejerce Ia fuerza requerida para abrir o cerrar Ia compuerta de salida, el contenedor de dosis está sujeto al brazo soporte (no. 6) y Ia bisagra (no. 7) del brazo soporte, el transductor de presión (no. 8) que convierte Ia presión ejercida por el peso del material a un valor de resistencia eléctrica, el borne de presión (no. 9) que aplica Ia fuerza del peso del material al sensor de presión y
Ia base del sensor (no. 10) consistente de una placa plana que soporta el eje de Ia bisagra y a Ia que se sujeta el sensor de presión.Figure 3 is an isometric view of the device with the gate open. With reference to said figures, the Dosing Device by Electronic Weight Sensor described is based on a mechanism consisting of a dose container (no. 1) that accumulates the material to be dosed until reaching the intended weight, the receiver of material (no. 2) where the material accumulates to serve the dose container and an inlet mechanism (no. 3) that makes the material flow to the dose container (no. 1), an exit gate (no. 4) which retains the material in the dose container and can be opened when the predetermined weight has been reached by means of the gate activating element (no. 5) that exerts the force required to open or close the exit gate, The dose container is attached to the support arm (no. 6) and the hinge (no. 7) of the support arm, the pressure transducer (no. 8) that converts the pressure exerted by the weight of the material to a resistance value electric, the pressure terminal (no .9) which applies the force of the material weight to the pressure sensor and The base of the sensor (no. 10) consisting of a flat plate that supports the axis of the hinge and to which the pressure sensor is held.
Funcionamiento del Dispositivo Dosificador Mediante Sensor Electrónico De Peso:Operation of the Dosing Device by Electronic Weight Sensor:
Una vez que Ie receptor de material (no. 2) ha sido cargado se hace encender el mecanismo de entrada (no. 3) que se encarga de empujar gradualmente el material hacia el contenedor de dosis (no. 1), durante este proceso Ia compuerta de salida (no. 4) se mantiene cerrada reteniendo el material en el contenedor de dosis, conforme el material se acumula en dicho contenedor, Ia fuerza debida al peso se transmite mecánicamente mediante Ia palanca que se hace entre el brazo de soporte (no. 6) y Ia bisagra (no. 7) hacia el borne de presión (no. 9), que a su vez concentra Ia fuerza sobre el transductor de presión (no. 8) que se encuentra fijo a Ia base del sensor (no. 10) justo debajo de dicho borne, Ia bisagra (no. 7) adicionalmente cumple con Ia función de evitar movimiento de desplazamiento lateral entre el borne de presión y el transductor de presión que pudiera provocar valores de peso indeseados; una vez que el peso ha alcanzado el valor deseado, se debe desactivar al mecanismo de entrada (no. 3) con Io que deja de entrar material al contenedor de dosis (no. 1), para luego hacer operar Ia compuerta de salida (no. 4) dejando que Ia dosis caiga por gravedad pudiéndose detectar el cambio de peso con el transductor de presión y determinar cuando ya se ha vaciado totalmente el contenedor de dosis, finalmente se hace operar el mecanismo activador de Ia compuerta (no. 5) quedando listo el dispositivo para reiniciar su operación para una nueva dosis de material.
Once the material receiver (no. 2) has been loaded, the input mechanism (no. 3) is turned on, which is responsible for gradually pushing the material towards the dose container (no. 1), during this process Ia exit gate (no. 4) is kept closed by retaining the material in the dose container, as the material accumulates in said container, the force due to the weight is transmitted mechanically by means of the lever that is made between the support arm (no .6) and the hinge (no. 7) towards the pressure terminal (no. 9), which in turn concentrates the force on the pressure transducer (no. 8) that is fixed to the base of the sensor (no. 10) just below said terminal, the hinge (no. 7) additionally fulfills the function of preventing lateral displacement movement between the pressure terminal and the pressure transducer that could cause unwanted weight values; once the weight has reached the desired value, the input mechanism (no. 3) must be deactivated, so that material stops entering the dose container (no. 1), then operate the exit gate (no 4) allowing the dose to fall by gravity, being able to detect the change in weight with the pressure transducer and determine when the dose container has been completely emptied, finally the gate activating mechanism (no. 5) is operated. Ready the device to restart its operation for a new dose of material.
Claims
1. El Dispositivo Dosificador Mediante Sensor Electrónico De Peso esta basado en una esta basado en un mecanismo caracterizado porque esta constituido por un contenedor de dosis que acumula el material a dosificar hasta alcanzar el peso que se pretende, un receptor de material donde se acumula el material para servir al contenedor de dosis y un mecanismo de entrada que hace fluir el material hacia el contenedor de dosis, una compuerta de salida que retiene el material en el contenedor de dosis, un elemento activador de Ia compuerta que ejerce Ia fuerza requerida para abrir o cerrar Ia compuerta de salida, un contenedor de dosis que está sujeto al brazo soporte, una bisagra del brazo soporte, un activador de salida que acciona Ia compuerta de salida, un transductor de presión que convierte Ia presión ejercida por el peso del material a un valor de resistencia eléctrica, un borne de presión que aplica Ia fuerza del peso del material al sensor de presión y una base consistente de una placa plana que soporta el eje de Ia bisagra y a Ia que se sujeta el sensor de presión; porque una vez que el receptor de material ha sido cargado se hace encender el mecanismo de entrada que se ocupa de empujar gradualmente el material hacia el contenedor de dosis, porque Ia compuerta de salida se mantiene cerrada durante el proceso reteniendo el material en el contenedor de dosis, porque conforme el material se acumula en dicho contenedor, Ia fuerza debida al peso se transmite mecánicamente mediante Ia palanca que se hace entre el brazo de soporte y Ia bisagra hacia el borne de presión, que a su vez concentra Ia fuerza sobre el transductor de presión que se encuentra fijo a Ia base justo debajo de dicho borne, porque Ia bisagra adicionalmente cumple con Ia función de evitar movimiento de desplazamiento lateral entre el borne de presión y el transductor de presión que pudiera p Irovocar valores de peso indeseados; porque una vez que el peso ha a canzado el valor deseado, se debe desactivar al mecanismo de entrada con Io que deja de entrar material al contenedor de dosis, para luego hacer operar Ia compuerta de salida dejando que Ia dosis caiga por gravedad pudiéndose detectar el cambio de peso con el transductor de presión y determinar cuando ya se ha vaciado totalmente el contenedor de dosis, porque finalmente se puede activar el cierre de Ia compuerta quedando listo el dispositivo para reiniciar su operación para una nueva dosis de material. 1. The Dosing Device by means of an Electronic Weight Sensor is based on one based on a mechanism characterized in that it is constituted by a dose container that accumulates the material to be dosed until reaching the intended weight, a receiver of material where the material to serve the dose container and an input mechanism that flows the material into the dose container, an exit gate that retains the material in the dose container, an activating element of the gate that exerts the force required to open or closing the exit gate, a dose container that is attached to the support arm, a hinge of the support arm, an output activator that drives the exit gate, a pressure transducer that converts the pressure exerted by the weight of the material to an electrical resistance value, a pressure terminal that applies the force of the weight of the material to the pressure sensor and a consistent base of u a flat plate that supports the axis of the hinge and to which the pressure sensor is held; because once the material receiver has been loaded, the input mechanism that is responsible for gradually pushing the material towards the dose container is turned on, because the exit gate is kept closed during the process by retaining the material in the container of dose, because as the material accumulates in said container, the force due to the weight is transmitted mechanically by means of the lever that is made between the support arm and the hinge towards the pressure terminal, which in turn concentrates the force on the transducer of pressure that is fixed to the base just below said terminal, because the hinge additionally fulfills the function of preventing lateral displacement movement between the pressure terminal and the pressure transducer that could cause unwanted weight values; because once the weight has reached the desired value, the input mechanism must be deactivated with what stops the material entering the dose container, and then the output gate is operated allowing the dose to fall by gravity being able to detect the Change of weight with the pressure transducer and determine when the dose container has been completely emptied, because finally the closure of the gate can be activated, the device being ready to restart its operation for a new dose of material.
2. El Dispositivo Dosificador Mediante Sensor Electrónico De Peso del punto 1 caracterizado porque los activadores del mecanismo de entrada y el de Ia compuerta son servomecanismos.2. The Dosing Device by Electronic Weight Sensor of point 1 characterized in that the actuators of the input mechanism and that of the gate are servomechanisms.
3. El Dispositivo Dosificador Mediante Sensor Electrónico De Peso del punto 1 caracterizado porque el activador del mecanismo de entrada y el de Ia compuerta son neumáticos o hidráulicos pudiéndose soportar cargas mayores de material.3. The Dosing Device by Electronic Weight Sensor of point 1 characterized in that the activator of the input mechanism and that of the gate are pneumatic or hydraulic, being able to withstand greater loads of material.
4. El Dispositivo Dosificador Mediante Sensor Electrónico De Peso del punto 1 caracterizado porque el sensor de presión es una celda de carga.4. The Dosing Device by Electronic Weight Sensor of point 1 characterized in that the pressure sensor is a load cell.
5. El Dispositivo Dosificador Mediante Sensor Electrónico De Peso del punto 1 caracterizado porque el sensor de piesión es un sensor piezoeléctrico.5. The Dosing Device by Electronic Weight Sensor of point 1, characterized in that the foot sensor is a piezoelectric sensor.
6. El Dispositivo Dosificador Mediante Sensor Electrónico De Peso del punto6. The Dosing Device Using Electronic Point Weight Sensor
1 caracterizado porque cuenta con un sistema de control automático y un panel que permita a un operador escoger el tamaño de Ia dosis de forma flexible. 1 characterized in that it has an automatic control system and a panel that allows an operator to choose the size of the dose flexibly.
7. El Dispositivo Dosificador Mediante Sensor Electrónico De Peso del punto 6 caracterizado porque el sistema de control permite dejar fija Ia dosis, llevar un conteo de dosis para su seguimiento y lograr secuencias de dosificaciones. 7. The Dosing Device by Electronic Weight Sensor of point 6 characterized in that the control system allows the dose to be fixed, to keep a dose count for monitoring and to achieve dosing sequences.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MXMX/A/2009/00093 | 2008-12-16 | ||
| MX2009000093A MX2009000093A (en) | 2008-12-16 | 2008-12-16 | Dosing device using electronic weight sensor. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010071390A1 true WO2010071390A1 (en) | 2010-06-24 |
Family
ID=42268942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/MX2009/000006 WO2010071390A1 (en) | 2008-12-16 | 2009-01-23 | Dosing device using electronic weight sensor |
Country Status (2)
| Country | Link |
|---|---|
| MX (1) | MX2009000093A (en) |
| WO (1) | WO2010071390A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3097831A1 (en) | 2015-05-27 | 2016-11-30 | M.C. Srl Fiorenzato | Automatic calibration process for coffee grinder-doser apparatuses with weighing device and electronic grinder-doser apparatus |
| CN110823331A (en) * | 2019-11-22 | 2020-02-21 | 赵林燕 | Device for guaranteeing to weigh feed quality to keep constant based on gravity change |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB594414A (en) * | 1944-12-12 | 1947-11-11 | Wenceslao Pinedo Valerino | Combined feed mechanism and weighing device |
| GB668202A (en) * | 1949-08-16 | 1952-03-12 | Valley Products Lye Ltd | Improvements in and relating to machines for delivering a certain weight of finely divided material |
| JPH07141560A (en) * | 1993-11-19 | 1995-06-02 | Fuji Electric Co Ltd | Adjusting device for total amount of drink of cup automatic vending machine |
| JPH08327439A (en) * | 1995-05-30 | 1996-12-13 | Yamato Scale Co Ltd | Fixed-quantity filling apparatus |
-
2008
- 2008-12-16 MX MX2009000093A patent/MX2009000093A/en unknown
-
2009
- 2009-01-23 WO PCT/MX2009/000006 patent/WO2010071390A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB594414A (en) * | 1944-12-12 | 1947-11-11 | Wenceslao Pinedo Valerino | Combined feed mechanism and weighing device |
| GB668202A (en) * | 1949-08-16 | 1952-03-12 | Valley Products Lye Ltd | Improvements in and relating to machines for delivering a certain weight of finely divided material |
| JPH07141560A (en) * | 1993-11-19 | 1995-06-02 | Fuji Electric Co Ltd | Adjusting device for total amount of drink of cup automatic vending machine |
| JPH08327439A (en) * | 1995-05-30 | 1996-12-13 | Yamato Scale Co Ltd | Fixed-quantity filling apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3097831A1 (en) | 2015-05-27 | 2016-11-30 | M.C. Srl Fiorenzato | Automatic calibration process for coffee grinder-doser apparatuses with weighing device and electronic grinder-doser apparatus |
| US10413128B2 (en) | 2015-05-27 | 2019-09-17 | Fiorenzato M.C. Srl | Automatic calibration process for coffee grinder-doser apparatuses with weighing device and electronic grinder-doser apparatus |
| CN110823331A (en) * | 2019-11-22 | 2020-02-21 | 赵林燕 | Device for guaranteeing to weigh feed quality to keep constant based on gravity change |
| CN110823331B (en) * | 2019-11-22 | 2021-06-18 | 莒县岚润饲料有限公司 | Device for guaranteeing to weigh feed quality to keep constant based on gravity change |
Also Published As
| Publication number | Publication date |
|---|---|
| MX2009000093A (en) | 2010-06-22 |
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