WO2016095066A1 - Dynamic weighing system - Google Patents

Dynamic weighing system Download PDF

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Publication number
WO2016095066A1
WO2016095066A1 PCT/CL2015/050051 CL2015050051W WO2016095066A1 WO 2016095066 A1 WO2016095066 A1 WO 2016095066A1 CL 2015050051 W CL2015050051 W CL 2015050051W WO 2016095066 A1 WO2016095066 A1 WO 2016095066A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
product
according
dispensing
base plate
product dispenser
Prior art date
Application number
PCT/CL2015/050051
Other languages
Spanish (es)
French (fr)
Inventor
LARRAÍN Salvador José ACHONDO
MORENO Cristián Alfonso ROBLES
Original Assignee
Achondo Larraín Salvador José
Priority date (The priority date 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 date listed.)
Filing date
Publication date

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B67OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67DDISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G13/00Weighing apparatus with automatic feed or discharge for weighing-out batches of material
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G13/00Weighing apparatus with automatic feed or discharge for weighing-out batches of material
    • G01G13/02Means for automatically loading weigh pans or other receptacles, e.g. disposable containers, under control of the weighing mechanism
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G13/00Weighing apparatus with automatic feed or discharge for weighing-out batches of material
    • G01G13/02Means for automatically loading weigh pans or other receptacles, e.g. disposable containers, under control of the weighing mechanism
    • G01G13/04Means for automatically loading weigh pans or other receptacles, e.g. disposable containers, under control of the weighing mechanism involving dribble-feed means controlled by the weighing mechanism to top up the receptacle to the target weight
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G3/00Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07FCOIN-FREED OR LIKE APPARATUS
    • G07F11/00Coin-freed apparatus for dispensing, or the like, discrete articles
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07FCOIN-FREED OR LIKE APPARATUS
    • G07F11/00Coin-freed apparatus for dispensing, or the like, discrete articles
    • G07F11/02Coin-freed apparatus for dispensing, or the like, discrete articles from non-movable magazines
    • G07F11/44Coin-freed apparatus for dispensing, or the like, discrete articles from non-movable magazines in which magazines the articles are stored in bulk
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07FCOIN-FREED OR LIKE APPARATUS
    • G07F13/00Coin-freed apparatus for controlling dispensing or fluids, semiliquids or granular material from reservoirs
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07FCOIN-FREED OR LIKE APPARATUS
    • G07F13/00Coin-freed apparatus for controlling dispensing or fluids, semiliquids or granular material from reservoirs
    • G07F13/02Coin-freed apparatus for controlling dispensing or fluids, semiliquids or granular material from reservoirs by volume
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07FCOIN-FREED OR LIKE APPARATUS
    • G07F13/00Coin-freed apparatus for controlling dispensing or fluids, semiliquids or granular material from reservoirs
    • G07F13/04Coin-freed apparatus for controlling dispensing or fluids, semiliquids or granular material from reservoirs by weight

Abstract

The invention relates to a moving dynamic weighing system, a product dispenser and a method for dispensing products which enable specific quantities of products having different properties to be weighed and dispensed in multiple directions, minimizing the error margin of said specifications. The moving dynamic weighing system comprises a conveying carriage (10) containing a charge cell (11) for weighing the products, the carriage being connected to at least one transport shaft for displacing the products in at least one direction, and the system comprising at least one transmission module (12) and at least one reception module (13) for transmitting the dynamic weighing information to an integrated card.

Description

DYNAMIC WEIGHING SYSTEM

DESCRIPTIVE MEMORY

The present invention relates to a mobile dynamic weighing whose main characteristic is that the load cell can move vertically and horizontally in a dispensing system products and duplicity with the weighing module and a transmission, reduces the minimum vibration in the cell produced, inter alia, as a bulk material, which causes variations to be dispensed, and significant differences weighing errors. To minimize these errors, the system comprises a dedicated electronic controller that works in conjunction with the amplification system of the weight and it has a multi Variable calibration for each product. The load cell is in a lift system product bidirectional elevator type, so the elevator system ascends, descends and / or moves horizontally to position itself in one of the tanks containing the desired product, performing a download gravity and measuring the amount dispensed by the load cell. Alternatively, the system may also include a variable volume mechanism that complements the dynamic weighing

BACKGROUND OF THE INVENTION

The complexity of grief from a cell phone charging is known since the application of the load cells be rolled out in the industrial area, making a great technical challenge for industries such as automotive, distribution or manufacturing, as required and was not possible weighing moving objects. Finally this technical problem has been solved by means of so-called dynamic weighing systems, which have the advantage of running the weighing objects that are moving. Currently, the mobile dynamic weighing systems are known in the prior art, but with variations in their operation.

In the prior art have drivers checkweighing high speed which base their operation in step elements despite over a weighing system or conveyor belt which can measure weights at speeds up to 77m / minute, such weighing is achieved in a reduced time and under adverse conditions of high vibration, withstanding very high weights, one example is weighings road vehicle or rather called weighing in motion at high speed, using sensors piezo electric . Another example of mobile dynamic weighing is weighing product passing on a conveyor belt, this system is also called mobile although mobility offered by the mobile dynamic weighing of the present invention, refers to the full-motion system weighing and load cell.

Another important aspect of the present invention patent is that the system dynamic mobile weighing is applicable to a dispenser system product, despite being known in the state of the art alone, the complement allows to solve the technical problem of dispensing specific quantities of different characteristics, minimizing the margin of error of these specifications.

Advantageously, the present invention further allows for a single load cell to weigh dynamically various products in multiple directions, thereby minimizing the space, weight and costs dispensing systems of the prior art.

DESCRIPTION OF THE INVENTION

The main technical characteristics of the mobile dynamic weighing is using a load cell has a bidirectional system lift which operates with a DC motor (DC) or alternating coriente (AC) in ranges that are, preferably, since

12V to 48V and which includes a gearbox having a continuously rotating motor that fits the needs of the product dispensing system. A transmission and reception module, which may be connected by cables or a wireless system; however, the latter has advantages over the use of wires which are associated to avoid:

mobile cables have an area of ​​high risk of clogging;

cable lengths to limit the transmission of weak voltage signals;

Electrical noise in the signals by electromagnetic induction.

All of the above would be remedied with the use of a wireless based on Bluetooth class 2 system, which would allow a maximum transmission distance of 5 m and having a receiver near the main unit is improved data processing which arrive without loss or contamination of electrical noise.

The load cell is aluminum block type and uses the principle strain gauge, this principle is used in various applications, consisting of a very fine wire wound on the walls of the aluminum block and each time this wire deforms it stretches or shrinks depending on the direction of the applied force. As a general definition of the principle of operation, a strain gage converts the deformation into an electrical signal which can be electronically processed to determine the different degrees of deformation. In one example, the cell used by the system is 7kg maximum, which is enough to work with maximum weights of 500g, but when uploading these 500g acquire an inertia such that when braking the elevator should release which causes the product container is raised (a jump) and falling hits the cell with more than 500g weight is in the packaging of product strength. These weight variations may develop a force of about 4kg on the load cell is why the range of deformation of the cell should be such that support such variations.

In alternative embodiments of the present invention may be used other types of load cell such as piezo or any other that is suitable.

Finally, the electronic control unit is responsible for processing all necessary operating system for mobile dynamic weighing signals. Clearly a unit of this type has many functions, in this case these functions are arranged in control areas within the same electronic card, accordingly integrated in the unit areas are described:

And main control processing: prosecutes weighing data, management of the LCD, product selection buttons, lift position and control of the traction motor. Furthermore it is who performs calculations of weight change and dynamic to be dispensed in appropriate quantities with each calibration. Another of its main functions is predictive control by a PID system to determine where weighing must stop dispensing so that the product is still in the pipeline complete the grammage for reaching 500g obviously being a predictive system It has an error of approximately lOg, which is within the range satisfying considering that could dispense four physically irregular products and different friction coefficients generating speeds independent drop for each product are mechanically uncontrollable.

Control and Data Acquisition load cell: is responsible for feeding the load cell and collect the generated voltage signals to transform them into actionable data by the main control system. This area read electric voltage signals and converted into numbers thus signals are easier to process which increases the speed of data processing.

Control power for traction motor: This area controls the current applied to the motor main drive to determine how fast it will spin and also controls the direction of rotation to shift the load cell vertically or horizontally where the latter is used a linear actuator whose position is also controlled. These functions are carried out based on signals from the main control system. The control method of rotation using this area is transistorised H-bridge type which allows us to control a voltage of 12VDC and a maximum current of 20 A.

Lighting control and selection: This area works together with the main unit and is responsible for lighting games between the product selection buttons. These buttons are not only fired but are also validators which verify that product was selected to tell the user if your selection was processed correctly. In addition, the signal processing selection button which is which tells the system when dispensing is performed. Like the product selection buttons this button lighting has games that tell the user when the system is ready to dispense. - Processing Unit balance: this unit is responsible for reading the signals from the purse which indicate that has entered balance, in this case these signals have a value all the same (electrical pulse fixed duration 50mS) independent of the type of coin that is entering, but this pulse goes by independent pin (3 pins) so this unit reads these three pins (electrical connectors) every 5 mS to detect a pulse of a duration equal to 50 mS, being correct means that someone income a coin and depending on which of the 3-pin appeared the pulse is assigned a value which is sent to the main control unit.

All main electronic control system works through a firmware (program) designed in C language and processing which have all algorithms work to integrate all stages of aforementioned control. Being a programmed system requires a superior system to prepare codes before burning in memory of the main microcontroller that requires obligation to use PC's static or notebook computers to perform tasks programming and data modification, once programmed this firmware it is theoretically forever within the microcontroller and not may be erased by any means except for a new reprogramming.

BRIEF DESCRIPTION OF THE FIGURES

The detailed description of the preferred embodiment of the invention will be in conjunction with the figures forming a part of this presentation. It is important to note that the figures only act as support elements for better understanding of the invention, without them represent the structure or the elements that conform to a real or proportional scale. The invention can not be limited only to what appears in the figures, since they represent the relevant elements of the invention and may not include elements that are generally known in the prior art. So you have to:

Figure 1 shows a front view of the dispensing system product and its components, including the leading load cell, lifting transportation, pipes, valves and modules are transmission and reception. - Figure 2 shows a front view of the dispensing system product according to a second embodiment of the mobile weighing system.

Figure 3 shows a front view of the dispensing system product according a third embodiment of the mobile weighing system. DETAILED DESCRIPTION OF THE FIGURES

In a first embodiment, the product dispenser system (1), as presented in Figure 1, comprises at least one container product tank, upper one (3) and / or a lower (4); at least one stopcock servo motor, an upper (5) and / or a lower (6); at least one guide pipe, a pipe upper guide (7) and / or a guide pipe bottom (8) allowing the passage of product to be dispensed to the dropping funnel product (9), to the trolley (10) where it is the load cell (11) is aluminum block type that uses the principle strain gauge. The transmitter module (12) and the receiver module (13) may be connected by wires or wirelessly to transmit information to an integrated card, allowing reducing errors due to vibration truck load and load the product to be dispensed. The dispensed product is deposited in a container holder (14). The mobile dynamic weighing is also composed of a vertical axis of transport (15) allows the load cell is directed towards the tank containing the product requested to be dispensed by a motor (16) DC lifting and two sprockets, an upper pinion (17) and a lower pinion (18), concentrated by a chain drive (16) DC.

Figure 2 illustrates a second embodiment of the invention, wherein the product dispenser (1) has four storage containers (3, 3 ', 3 ", 3"') arranged horizontally. Preferably under containers a horizontal axis of carriage (19) wherein a transmission module (12) is located and by which the trolley (10) moves with the load cell (11) and the available container holder (14) therein, said carriage driven by a linear actuator motor (20).

In a preferred embodiment of the invention, the axis of horizontal transport (19) is in connection with the elevator vertical conveyor (15), thus allowing the trolley (10) moves both horizontally and vertically, being able to make the journey from the product containers (3, 3 ', 3 ", 3"') to a dispensing station (21) located anywhere in the product dispenser (1) and thus empty the contents stored in the container clamping (14) in a funnel dispenser (22) located in said dispensing station (21).

In alternative of the invention embodiments, the transport carriage (10) can also move on a secondary shaft driven by an additional motor, the latter being the axis in direct connection with the axis horizontal conveyor (19), to allow displacement three-dimensional transport carriage (10).

According to Figure 3, the system of the present invention may include, in an alternative embodiment, a variable-volume system that complements the weighing performed by the load cell on the lifting carriage. This variable volume system is the use of a base plate holder (14) of variable volume, which can change its driven by a linear actuator adjusting means (22) controlled by an electronic card module height.

Preferably, said servo adjustment is located in the transport carriage and connected to the upper end of the base plate holder (14) of variable volume.

By this embodiment it is achieved increase the accuracy of the measures required to dispense the product, not only based on the weight of the product but also in its volume.

Thus, it is avoided that factors such as humidity which affects the weight of the product, for example in different geographical locations, has no impact on obtaining the specified amounts of the dispensed product. The present invention is also associated with a method for dispensing product from a dispenser system products (1) using the dynamic weighing system, object of the present invention. The method mainly includes the steps of:

a) Select a specific amount of a product stored in the product dispenser (1).

b) Transporting a transport carriage (10) containing a load cell (11) and a container holder (14) to the proximity of a product container (3, 3 ', 3 ", 3"', 4) storing the product to be dispensed.

c) receiving a quantity of product from the product container (3, 3 ', 3 ", 3"', 4) in a clamping base plate (14).

d) Weigh the product to the load cell (11) as it is received in the base plate holder (14).

e) Stopping the flow of product to the base plate fastening once you obtained the amount initially specified

f) Transport the transport carriage (10) to a dispensing station (21).

g) Remove the dispensed product.

According to preferred embodiments of the invention, the transport steps b) and f) are performed by moving the transport carriage (10) in one, two or three directions within the product dispenser (1).

In an alternative embodiment of the invention, step d) in which the product is weighed can be supplemented by measuring the volume of product to be dispensed, by means of a variable-volume system, in this embodiment, the method of dispensing comprises the additional step of adjusting the volume of base plate holder (14) according to the type of product to be dispensed by increasing the height of said base plate by means of an actuator adjustment, either linear, or any other and connected to the upper end of base plate and the trolley (10). After adjusting the height and therefore the volume of the base plate holder (14), it proceeds to receive the product from the product container (3, 3 ', 3 ", 3"', 4) and stop the flow when You obtain the specified amount, wherein said criterion can be based solely on the weight of the product, its volume or a combination of both.

Claims

What is claimed
1. The dynamic weighing in motion weighing and dispensing multidirectional specific quantities of different characteristics, minimizing the margin of error of these specifications, comprising a transport carriage (10) which contains a load cell ( 11) for weighing products, wherein said carriage is connected to at least one transport shaft for moving said products in at least one direction and wherein the system comprises at least one transmission module (12) and at least a receiving module (13) to transmit information to an integrated dynamic weighing card.
2. The dynamic weighing system moving according to claim 1, wherein the at least one transmission module (12) and at least one receiving module (13) are connected wirelessly.
3. The dynamic weighing system moving according to claim 1, wherein the at least one transmission module (12) and at least one receiving module (13) are connected by cable.
4. The dynamic weighing system moving according to any of the preceding claims, further including a system variable volume.
5. The dynamic weighing system moving according to any of preceding claims, wherein the load cell (11) is aluminum block and uses the principle strain gauge.
6. The dynamic weighing system moving according to any of claims 1 to 4, wherein the load cell (11) is of the piezo electric type.
7. Dispenser products (1) which includes a dynamic weighing system moving according to claims 1 to 6, to weigh and dispense multiple direccioens specific quantities of different characteristics, minimizing the margin of error of these specifications, characterized by:
- the dynamic weighing system comprises a transport carriage (10) which contains a load cell (11) for weighing products, wherein said carriage is connected to at least one transport shaft for moving said products in at least one direction and wherein the system comprises at least one transmission module (12) and at least one receiving module (13) for transmitting the information of the dynamic weighing to an integrated card, wherein the product dispenser (1) further comprising:
- at least one product container (3, 3 ', 3 ", 3"', 4) to contain at least one product to be dispensed;
- a container holder (14) arranged on the transport carriage.
- at least one dispensing station (21).
8. The product dispenser (1) according to claim 7, wherein the at least one transmission module (12) and at least one receiving module (13) are connected wirelessly.
9. The product dispenser (1) according to claim 8, wherein the at least one transmission module (12) and at least one receiving module (13) are connected by cable.
10. The product dispenser (1) according to any of claims 7 to 9, wherein said at least one transport axis corresponds to a horizontal axis of carriage (19).
11. The product dispenser (1) according to claim 10, wherein said horizontal transport axis (15) is connected to a vertical transport shaft (15).
12. The product dispenser (1) according to claim 11, wherein the horizontal axis of carriage (19) is in connection with a secondary transmission shaft.
13. The product dispenser (1) according to any of claims 12 67a, further including a system variable volume.
14. The product dispenser (1) according to claim 13, wherein said variable volume system is one clamping base plate (14) driven by a variable volume adjustment actuator (22) and controlled by a module electronic card.
15. The product dispenser (1) according to claim 14, wherein said actuator adjusting means (22) is a linear actuator adjustment.
16. The product dispenser (1) according to claim 14 or 15, characterized in that said actuator adjusting means (22) is located on the transport carriage (10) and connected to the upper end of the base plate holder (14) variable volume.
17. The product dispenser (1) according to any of claims 7 to 16, wherein the load cell (11) is aluminum block type and uses the principle strain gauge.
18. The dynamic weighing system moving according to any of claims 7 to 17, wherein the load cell (11) is of the piezo electric type.
19. The product dispenser (1) according to any of claims 7 to 18, wherein the dispensing station (21) comprises a dispensing funnel (22).
20. The product dispenser (1) according to any of claims 7 to 19, characterized by further comprising:
- at least a stopcock (5, 6) driven by servo motor; - at least one guide (5, 6) pipe;
- a funnel drop product (9);
- at least two pinions (17, 18);
- at least one motor (16).
21. A method for dispensing product in a product dispenser (1) according to claims 7 to 20, including a dynamic weighing system moving according to claims 1 to 6, for weighing and dispensing multidirectional specific quantities of products different characteristics, minimizing the margin of error of these specifications, characterized by including the steps of:
a) selecting a specific quantity of a product stored in the product dispenser (1);
b) carrying a transport carriage (10) containing a load cell (11) and a container holder (14) to the proximity of a product container (3, 3 ', 3 ", 3"', 4) storing the product to be dispensed;
c) receiving a quantity of product from the product container (3, 3 ', 3 ", 3"', 4) in a clamping base plate (14);
d) although the product with the load cell (11) as it is received in the base plate holder (14);
e) stopping the flow of product to the base plate fastening once obtained the amount initially specified;
f) transporting the transport carriage (10) to a dispensing station (21);
g) removing the dispensed product.
22. A method for dispensing products according to claim 21,
Wherein steps b) and f) are performed by moving the transport carriage (10) in a direction within the product dispenser (1).
23. A method for dispensing products according to claim 21, wherein steps b) and f) are performed by moving the transport carriage
(10) in two directions within the product dispenser (1).
24. A method for dispensing products according to claim 21, wherein steps b) and f) are performed by moving the transport carriage (10) in three directions into the product dispenser (1).
25. A method for dispensing products according to any of claims 21 to 24, wherein step d) further comprises the step of measuring the volume of product to be dispensed, by means of a variable-volume system.
26. A method for dispensing products according to claim 25, wherein comprising the further step of adjusting the volume of base plate holder (14) according to the type of product to be dispensed by increasing or decreasing the height of said base plate.
27. A method for dispensing products according to claim 26, wherein the height variation clamping base plate (14) is performed by an actuator connected to the upper end fitting base plate and the trolley (10) .
28. A method for dispensing products according to any of claims 21 to 27, wherein step e) comprises stopping the flow of product towards the base plate holder (14) once the specified amount obtained based on the initially weight.
29. A method for dispensing products according to any of claims 25 to 27, wherein step e) comprises stopping the flow of product towards the base plate holder (14) once the specified amount obtained based on the initially product volume.
30. A method for dispensing products according to any of claims 25 to 27, wherein step e) comprises stopping the flow of product towards the base plate holder (14) once the specified amount obtained based on the initially weight and volume of the product.
PCT/CL2015/050051 2014-12-19 2015-12-17 Dynamic weighing system WO2016095066A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CL2014003469 2014-12-19
CL03469-2014 2014-12-19

Publications (1)

Publication Number Publication Date
WO2016095066A1 true true WO2016095066A1 (en) 2016-06-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07129845A (en) * 1993-10-29 1995-05-19 Fuji Electric Co Ltd Ice discharging device of cup type automatic vending machine
JPH08159859A (en) * 1994-12-02 1996-06-21 Omron Corp Weight detecting apparatus and automatic vending machine for beverage using the same
US5685435A (en) * 1995-05-08 1997-11-11 Mars Incorporated Method and apparatus for automatic bulk vending
JP2001025671A (en) * 1999-07-14 2001-01-30 Yamamoto Co Ltd Rice vending apparatus
ES2178585A1 (en) * 2000-12-15 2002-12-16 Fast Distribuciones S A Coffee grains and ground coffee vending machine
US20040256022A1 (en) * 1999-10-18 2004-12-23 Chris Berghoff Automatic portion control system using strain gauge technology
US20120065774A1 (en) * 2010-09-14 2012-03-15 David Peretz Granular material vending apparatus and method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07129845A (en) * 1993-10-29 1995-05-19 Fuji Electric Co Ltd Ice discharging device of cup type automatic vending machine
JPH08159859A (en) * 1994-12-02 1996-06-21 Omron Corp Weight detecting apparatus and automatic vending machine for beverage using the same
US5685435A (en) * 1995-05-08 1997-11-11 Mars Incorporated Method and apparatus for automatic bulk vending
JP2001025671A (en) * 1999-07-14 2001-01-30 Yamamoto Co Ltd Rice vending apparatus
US20040256022A1 (en) * 1999-10-18 2004-12-23 Chris Berghoff Automatic portion control system using strain gauge technology
ES2178585A1 (en) * 2000-12-15 2002-12-16 Fast Distribuciones S A Coffee grains and ground coffee vending machine
US20120065774A1 (en) * 2010-09-14 2012-03-15 David Peretz Granular material vending apparatus and method

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