CA2228075A1 - Apparatus and method for weighing containers and contents during the fi lling process - Google Patents
Apparatus and method for weighing containers and contents during the fi lling process Download PDFInfo
- Publication number
- CA2228075A1 CA2228075A1 CA 2228075 CA2228075A CA2228075A1 CA 2228075 A1 CA2228075 A1 CA 2228075A1 CA 2228075 CA2228075 CA 2228075 CA 2228075 A CA2228075 A CA 2228075A CA 2228075 A1 CA2228075 A1 CA 2228075A1
- Authority
- CA
- Canada
- Prior art keywords
- container
- product
- products
- paste
- contents during
- 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.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B3/26—Methods or devices for controlling the quantity of the material fed or filled
- B65B3/28—Methods or devices for controlling the quantity of the material fed or filled by weighing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
- B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
- B65B43/54—Means for supporting containers or receptacles during the filling operation
- B65B43/59—Means for supporting containers or receptacles during the filling operation vertically movable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
- B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
- B65B43/54—Means for supporting containers or receptacles during the filling operation
- B65B43/60—Means for supporting containers or receptacles during the filling operation rotatable
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
- Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
Abstract
The manner in which the product enters the container is determined by the various sub-processes previous to the filling process. Products can be liquid, low to high viscosity, or paste.
To dispense low to high viscosity and paste materials effectively, a vertical motion with rotation is applied to the container. Weight readings are taken continuously throughout all these movements without resulting in erroneous readings, while integrating functions of the other system components, such as the pressure and compression chamber, the inlet valve, etc.
To dispense low to high viscosity and paste materials effectively, a vertical motion with rotation is applied to the container. Weight readings are taken continuously throughout all these movements without resulting in erroneous readings, while integrating functions of the other system components, such as the pressure and compression chamber, the inlet valve, etc.
Description
z FIELD OF THE INVENTION
This invention integrates volumetric and weight-based measuring principles with a device that rotates the container for uniform distribution of product. Applications range from semi-viscous to paste products, with and without chunks. The weighing system operates throughout the filling process. The expert system operates continuously and can adjust for changes in density, viscosity, texture, pressure, and flow in order to achieve the target weight with minimum variation.
BACKGROUND OF THE INVENTION
Filling systems are commonly used in various sectors of industry and commerce.
There is a vE~ry wide range of products to be packaged: dry products including powders and larger pieces, pieces of different sizes and shapes, pre-packaged or not; and wet products ranging from liquids to pastes.
With any kind of liquid, volumetric measuring systems are generally used in the filling process. Some systems measure product right in the container using a level sensor. Others measure product by the amount of time it takes to flow into the container. These systems may be gravity-fed or pressure-fed. The levE~l sensor or counter sends a command to cut off the flow, regardless of the consequences of product accumulating in the flow pipe.
Volumetric measuring systems may also use a cylindrical chamber with a piston, whose position controls the volume of product to be transferred into the container. The piston draws the product by suction from the tank into a cylindrical chamber. A valve is activated to deliver the product to the container, and the piston forces it in.
Weight-based systems use a stationary scale. The product is transferred by gravity or fed by auger into the container on the scale, which then sends a signal to the cutoff, and the product accumulates either in a tank, for liquids, or right in the flow pipe, for compressible substances.
To the Appli.cant's knowledge, there is no process for filling and weighing containers that integrates a unit for raising, lowering and turning containers with a reliable, continuous weighing system. The control system must also integrate a filler unit with a cylindrical chamber that fills the containers at a predetermined speed.
SU1~IMARY OF THE INVENTION
The primary goal of the invention is to incorporate and integrate an accurate continuous weighing system with an industrial filling process for products that are more or less liquid. An expert system operates continuously and can automatically adjust for changes in density, viscosity, texture, pressure, and flow in order to achieve the target weight consistently.
The containers are of various shapes and sizes, and the products vary in flow rate, density and consistency.
Applications range from liquid to semi-viscous, viscous, and paste products, with or without chunks of various sizes and shapes.
The invention is an integration of volumetric and weight-based measuring principles with a servo control system that can integrate the variables of the previous process and product variables in order to attain target llow rates and weights.
This invention has a power-operated plate that rotates the container during the x.11 cycle. It is activated for products that are semi-viscous, viscous or paste. The turning motion helps to distribute the product evenly in the container and makes the filling process faster and more stable for this kind of product.
One element of this invention is the incorporation of a power-operated rotation system with a lift that positions the container closer to the dispensing nozzle, thereby decreasing the distance over which the product must fall. Lifting is '. 5 accomplished with a cylinder that is hollow so that a shaft can pass through it to activate the rotating plate.
Another aspect of this invention is the use of concentric plates:
one is the rotating plate just described, and the other, which is stationary, is where the load cells are mounted. The device that lifts the container to the dispensing nozzle operates just underneath this second plate. The rotating plate is in contact with the container, and has a negligible, equalized effect on the continuous weighing system.
A unique innovation in this invention is the processing unit, which collects information from the load cells and the flow regulating units, continually processing information and sending commands to various system units.
. -.
The lifting, weighing and rotating unit is a subassembly of a rather complex filling system which is hooked up to a computer with an expert system supplemented by algorithms.
This unit is made up of 1) a drive
This invention integrates volumetric and weight-based measuring principles with a device that rotates the container for uniform distribution of product. Applications range from semi-viscous to paste products, with and without chunks. The weighing system operates throughout the filling process. The expert system operates continuously and can adjust for changes in density, viscosity, texture, pressure, and flow in order to achieve the target weight with minimum variation.
BACKGROUND OF THE INVENTION
Filling systems are commonly used in various sectors of industry and commerce.
There is a vE~ry wide range of products to be packaged: dry products including powders and larger pieces, pieces of different sizes and shapes, pre-packaged or not; and wet products ranging from liquids to pastes.
With any kind of liquid, volumetric measuring systems are generally used in the filling process. Some systems measure product right in the container using a level sensor. Others measure product by the amount of time it takes to flow into the container. These systems may be gravity-fed or pressure-fed. The levE~l sensor or counter sends a command to cut off the flow, regardless of the consequences of product accumulating in the flow pipe.
Volumetric measuring systems may also use a cylindrical chamber with a piston, whose position controls the volume of product to be transferred into the container. The piston draws the product by suction from the tank into a cylindrical chamber. A valve is activated to deliver the product to the container, and the piston forces it in.
Weight-based systems use a stationary scale. The product is transferred by gravity or fed by auger into the container on the scale, which then sends a signal to the cutoff, and the product accumulates either in a tank, for liquids, or right in the flow pipe, for compressible substances.
To the Appli.cant's knowledge, there is no process for filling and weighing containers that integrates a unit for raising, lowering and turning containers with a reliable, continuous weighing system. The control system must also integrate a filler unit with a cylindrical chamber that fills the containers at a predetermined speed.
SU1~IMARY OF THE INVENTION
The primary goal of the invention is to incorporate and integrate an accurate continuous weighing system with an industrial filling process for products that are more or less liquid. An expert system operates continuously and can automatically adjust for changes in density, viscosity, texture, pressure, and flow in order to achieve the target weight consistently.
The containers are of various shapes and sizes, and the products vary in flow rate, density and consistency.
Applications range from liquid to semi-viscous, viscous, and paste products, with or without chunks of various sizes and shapes.
The invention is an integration of volumetric and weight-based measuring principles with a servo control system that can integrate the variables of the previous process and product variables in order to attain target llow rates and weights.
This invention has a power-operated plate that rotates the container during the x.11 cycle. It is activated for products that are semi-viscous, viscous or paste. The turning motion helps to distribute the product evenly in the container and makes the filling process faster and more stable for this kind of product.
One element of this invention is the incorporation of a power-operated rotation system with a lift that positions the container closer to the dispensing nozzle, thereby decreasing the distance over which the product must fall. Lifting is '. 5 accomplished with a cylinder that is hollow so that a shaft can pass through it to activate the rotating plate.
Another aspect of this invention is the use of concentric plates:
one is the rotating plate just described, and the other, which is stationary, is where the load cells are mounted. The device that lifts the container to the dispensing nozzle operates just underneath this second plate. The rotating plate is in contact with the container, and has a negligible, equalized effect on the continuous weighing system.
A unique innovation in this invention is the processing unit, which collects information from the load cells and the flow regulating units, continually processing information and sending commands to various system units.
. -.
The lifting, weighing and rotating unit is a subassembly of a rather complex filling system which is hooked up to a computer with an expert system supplemented by algorithms.
This unit is made up of 1) a drive
2) a coupling
3) a drive shaft guide, which lines up shaft #5 and #4
4) frictionless linear bearings for
5) the drive shaft
6) a lift
7) frictionless linear bearings that support rotating plate #12,
8) guide rods for the plate,
9) the support plate for the load cells,
10) the load cells,
11) the base and the thrust bearing for the rotating plate, and
12) the rotating plate itself.
The process consists in positioning a container on the rotating plate # 12, located under the dispensing valve. The container is then lifted, as it turns, to the dispensing valve. The inlet control valve is opened and the X11 cycle begins. The container puts pressure on the load cells. The other guides must not generate friction that could give false weight readings. In addition, the drive system goes through the lifting unit and makes the plate rotate.
When the container reaches a predetermined weight, the inlet control valve is closed and the control chamber cylinder is activated at a predetermined speed. The flow impact is monitored. Pressure in the flow pipe is isolated. All during filling, the container is being lowered to ensure even filling.
The process consists in positioning a container on the rotating plate # 12, located under the dispensing valve. The container is then lifted, as it turns, to the dispensing valve. The inlet control valve is opened and the X11 cycle begins. The container puts pressure on the load cells. The other guides must not generate friction that could give false weight readings. In addition, the drive system goes through the lifting unit and makes the plate rotate.
When the container reaches a predetermined weight, the inlet control valve is closed and the control chamber cylinder is activated at a predetermined speed. The flow impact is monitored. Pressure in the flow pipe is isolated. All during filling, the container is being lowered to ensure even filling.
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2228075 CA2228075A1 (en) | 1998-02-27 | 1998-02-27 | Apparatus and method for weighing containers and contents during the fi lling process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2228075 CA2228075A1 (en) | 1998-02-27 | 1998-02-27 | Apparatus and method for weighing containers and contents during the fi lling process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2228075A1 true CA2228075A1 (en) | 1999-08-27 |
Family
ID=29409165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2228075 Abandoned CA2228075A1 (en) | 1998-02-27 | 1998-02-27 | Apparatus and method for weighing containers and contents during the fi lling process |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2228075A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106742111A (en) * | 2017-01-10 | 2017-05-31 | 安徽永成电子机械技术有限公司 | A kind of taper discharging powder packing machine and discharging method |
-
1998
- 1998-02-27 CA CA 2228075 patent/CA2228075A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106742111A (en) * | 2017-01-10 | 2017-05-31 | 安徽永成电子机械技术有限公司 | A kind of taper discharging powder packing machine and discharging method |
| CN106742111B (en) * | 2017-01-10 | 2023-03-14 | 安徽永成电子机械技术有限公司 | Conical discharging powder packaging machine and discharging method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |