WO2018101900A1 - A glass forming machine - Google Patents
A glass forming machine Download PDFInfo
- Publication number
- WO2018101900A1 WO2018101900A1 PCT/TR2017/050575 TR2017050575W WO2018101900A1 WO 2018101900 A1 WO2018101900 A1 WO 2018101900A1 TR 2017050575 W TR2017050575 W TR 2017050575W WO 2018101900 A1 WO2018101900 A1 WO 2018101900A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- funnel
- mold
- calibration
- carrier
- movement
- Prior art date
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/04—Other methods of shaping glass by centrifuging
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention subject to the application is related with a glass forming machine that has been developed in order to provide production of glassware products manufactured from soda-lime, borosilicate and opal glasses by molding, using centrifugal forces.
Description
DESCRI PTI ON
A GLASS FORM I NG MACHI N E
Technical Field of I nvention
The invention subject to the application is related with a glass forming machine that has been developed in order to provide production of glassware products manufactured from soda-lime, borosilicate and opal glasses by molding, using centrifugal forces.
Background of the I nvention ( Prior art)
I n the prior art, one of the methods used for glassware production is the spinning technique. The spinning technique enables manufacturing glassware with several different properties. The spinning technique is based on the effect of the centrifugal force.
The glass forming machines used in the prior art have 6 or 18 molds on the rotating table. There is a funnel on each mold, which aligns the glass drop to the mold center and enables it to fall down. Each one of the pair of 6-18 funnels/molds located on the permanently rotating spinning mold holder, passes below the feeder and the gobe with temperature of 1 150°C drops into the mold when the glass dripping point reaches the same axis with the feeder. After that stage, the funnel moves away from the mold; the mold is rotated at high speed and the expansion and formation of the viscous liquid glass in the mold is enabled.
During the distribution of the molten glass in the mold, the funnel on top of the mold is received in, by means of the rotating cam , and the cooling pipes move to the front to cool down the glass on the mold and to blow cold air to the mold. As a result, the cooled glass hardens and takes the form of a f inal product.
I n this production method, the distance of the funnel against the mold and its position against the mold's center are important during the dripping of the glass drop to the mold. The point where the molten glass-drop falls into the mold and the speed of this fall which depends on height affects the f irst form the molten glass is to take in the mold and
the f inal form the glass-drop is to take by spreading on the mold walls as a result rotating the mold.
Hitting of the drop at a speed higher than required, or falling to a point other than the center of the mold results in the accumulation of the f inished product mostly towards one side of the mold, which deforms the f inished product, causing quality problems and product waste. I n spinning machines, the funnel moves vertically and laterally against the mold port. On the spinning machines of the prior art, the funnel's movement towards and away from the mold in vertical direction is carried out by means of pneumatic cylinders or servo-motor actuators. Lateral movement is enabled by the spinning the group which the funnel is connected in the orbit of a cam .
Sensitive positioning of the funnel against the mold center during initial setup is calibrated mechanically by means of screw/nut mechanisms. Lateral position settings are carried out manually with screw/nut mechanisms on the funnel carrier. Calibration of the vertical distance of the funnel against the mold is also carried out on pneumatic systems with a screw/nut mechanism . Funnel centering calibration is required to be done separately on 6 to 18 mold/funnel couples. I n order to ensure equi-geometric specif ications of the production manufactured in each mold, these settings are performed by "rule of thumb" under the operator's competence. Scale rulers are also used in the calibration.
These operations towards the central calibration of the funnel-mold couple, which are carried out depending on the operator's competence, are not repeatable and a variation occurs on the product's formal geometry. Furthermore, it has a negative effect on the product's eff iciency and product quality.
Due to the technical problems described above, the lateral and vertical positions of the funnel against the mold cannot be calibrated as precisely as required in the prior art and production losses occur until precise calibration. I n addition, even if the funnel is correctly calibrated, it becomes de-calibrated after a while and again, causes losses of production and time.
Brief Description and Objectives of the I nvention
I n the invented glass forming machine, the mold-funnel movement is realized by means of electromechanically linear movement modules on the lateral and vertical axis.
The position of the funnels against the mold centers is monitored digitally on the operator panel for each mold; as a result, the funnel coordinates can be calibrated as requested and precisely during production.
During mold replacement or initial setup after calibration, the position of the funnels against the mold center is set precisely by means of electromechanically linear movement modules. Funnel-mold concentricity is controlled via camera and software. Central/reference position is introduced to the main control system for each mold-funnel couple. Any changes to be made in the funnel coordinates by the operator during production according to the reference position def ined during initial setup are digitally and graphically monitored on the control screen.
The development of the invented glass forming machine intends to
• Monitor digitally the distance between the mold and the funnel,
• Measure and record the radial positioning of the funnel with an absolute encoder,
• Monitor the funnel position coordinates continuously by the production operators on the control system digitally and with the graphic image;
• Realize the settings on the machine during the replacement and production of the product in a more correct and shorter way,
• Reduce losses of production and
• I ncrease production eff iciency and product shape and form precision.
Definition of the Figures Describing the I nvention
The f igures used for better explaining the glass forming machine developed with this invention and the explanations related with these f igures are as follows.
Figure 1 : Lateral view of the funnel carrier calibration mechanism during initial setup.
Figure 2 : Lateral view of the funnel carrier mechanism .
Figure 3 :Top view of the funnel carrier calibration mechanism during initial setup. Figure 4 : Rear view of the funnel carrier calibration mechanism during initial setup. Figure 5 : Front view of the funnel carrier calibration mechanism during initial setup. Figure 6 : Detailed view of the funnel carrier calibration mechanism during initial setup.
Figure 7 : Top view of the glass forming machine in the prior art. Figure 8 : Lateral view of the funnel carrier mechanism in the prior art. Figure 9 : Front view of the cam mechanism in the prior art. Figure 1 0 : Top view of the funnel and mold in the prior art.
Definitions of the Parts/ Sections/ Components which Form the I nvention
To better explain the glass forming machine developed with this invention, th components and parts on the drawings have been numbered separately and th explanations of each number are provided as follows.
1 . Funnel carrier
2. Fixed body
3. Movement module
4. Vertical electromechanical linear movement module
5. Mold
6. Digital camera
7. Adjusting shaft
8. Adjusting encoder
9. Glass forming machine
1 0. Prior art's funnel
1 1 . Prior art's cam
1 2. Lateral movement shaft
1 3. Prior art's moving body
1 4. Prior art's f ixed body
1 5. Vertical electromechanical linear movement module
Detailed Description of the I nvention
A calibration and movement mechanism which enables calibrating the height of the funnel carrier (1 ) and as a result the funnel (10) against the mold (5) , and its position against the center of the mold (5) during production and initial setup due to part or mold (5) replacement on the glass forming machine (9) is the key element of the invention herein which suggests an enhancement in the glass forming machine (9) where glassware made of soda-lime, borosilicate and opal glasses are formed in a mold (1 ) by means of the centrifugal forces. As a result of this calibration mechanism, the funnel carrier (1 ) and consequently the funnel (10) coordinates can be positioned, monitored and recorded digitally against the funnel (5) center. This calibration during the initial setup has a direct influence on the form and quality of the f inal product as it determines the speed of dropping of the molten glass drop into the mold (5) and the dropping point, and as a result its form of spreading to the mold walls. As a result, high precision of this adjustment is important for product eff iciency and product quality. I n the invented glass forming machine (9) , the mold-funnel movement is realized by means of electromechanically linear movement modules (15 and 4) on the lateral and vertical axis. Positioning the funnel carrier (1 ) and as a result the funnel (10) to the mold (5) center precisely during initial startup after product replacement or maintenance is carried out by means of lateral and vertical electromechanical movement modules (15 and 4) , lateral movement shaft (12) , calibration shaft (7) and the calibration encoder (8) . I n addition to these components, for more precise calibration, digital camera (6) can also be used in another conf iguration of the invention. Nevertheless, in another application of the invention, the lower/upper movement and the forward/backward movement of the funnel carrier (1 ) on the movement module (3) where it is connected on a f ixed body (2) can be provided by lateral and vertical linear motors instead of lateral and vertical electromechanical movement modules (15 and 4) .
The funnel (10) and mold (5) coordinates obtained during this centering action are the coordinates of the funnel (1 0) and the mold (5) at the time when the drop falls from the feeder to the funnel during production. The movements in the vertical and lateral coordinates are realized through lateral and vertical electromechanically linear movement modules (15 and 4) . Angular centering is carried out with a calibration screw on the upper part of the mold (5) . The angular changes are monitored and recorded with a calibration encoder (8) .
I n another conf iguration of the invention, realization of positioning at the desired precision is identif ied by means of the camera (6) installed on the upper portion of the mold (5) and the positioning software during the initial setup or replacement of the arm . The images received by the camera (6) are processed and the centers of the mold (5) and the funnel (1 0) are displayed on the operator screen , digitalized on the coordinate plane and the distance between the two points is graphically reflected on the screen . The point where both centers overlap is def ined as a central reference position to the glass forming machine (9) control and com mand system . During product replacement or maintenance on the glass form ing machine (9) , the camera (6) is mounted on the upper part of the mold (5) to the point shown in Figures 1 , 3 and 6 and the calibration is carried out. After completing this f ine tuning on a mold-funnel couple, the camera (6) is removed and mounted on the connection point of another mold (5) for calibration on another mold-funnel couple. After the calibration of all funnel-mold couples on the glass form ing machine (9) , the camera is removed from the glass form ing machine (9) . The camera (6) is not located on the glass forming machine (9) during production. Both vertical and lateral coordinates and the angle are f ixed after the mold-funnel positioning during initial setup. As a result, the position of the funnel ( 1 0) during the falling of the drop from the feeder is made constant. I f required during production , the calibrated funnel ( 1 0) coordinates may also be changed.
After realizing the funnel-mold center calibration, the movements on lateral and vertical axis of the electromechanically lateral and vertical linear movement modules ( 1 5 and 4) during production are also introduced to the system . Glass forming machine (9) plate and consequently each mold (5) turns around the machine's (9) axis. During the rotation of the glass forming machine (9) around its own axis, lateral and vertical electromechanical linear movement modules ( 1 5 and 4) of the funnel (1 0) realize the lateral (back and forth) and vertical (up and down) movement. The movements of the funnel (1 0) are realized according to the angle of the mold (5) around the axis of the glass forming machine (9) . At the beginning of the initial setup, the position of the drop at the moment it drops from the feeder is precisely f ixed . This position of the funnel (1 0) is introduced to the system depending on the rotation angle of the glass form ing machine (9) . The funnel (1 0) rises up after the drop falls in the mold (5) to cool down the product by reaching the front part of the cooling pipes, and it is retracted towards the center of the glass forming machine (9) . The lifting and regression movement of the funnel (1 0) is introduced to the system according to the rotation speed of the rotating table of the glass form ing machine (9) . During the continuity of the rotation movement of the glass forming machine (9) ; in order to drop the
next glass drop into the mold (5) , the outward movement of the funnel from the center of the glass forming machine (9) and its lowering movement are introduced on the system depending on the angle of the glass forming machine (9) .
The invented calibration mechanism comprises the below-detailed components to satisfy the foregoing requirements.
Funnel carrier ( 1 ) : The funnel carrier (1 ) which carries the funnel (10) to drop and transfer the molten glass drop into the mold (5) during production, and the height and position of which is calibrated against the center of the mold (5) during initial setup.
Fixed body (2) : A body conf iguration which includes and supports all elements of the invented calibration mechanism together with the funnel carrier (1 ) .
Movement module (3) : A carrier conf iguration which moves up and down and back and forth on the f ixed body (2) by means of the lateral and vertical electromechanical linear movement modules (15 and 4) and to which the funnel carrier (1 ) is connected in order to reposition the funnel carrier (1 ) . Vertical electromechanical linear movement module (4) : The carrier conf iguration which enables up/down movement of the funnel carrier (1 ) on the f ixed body (2) of the movement module (3) to which the funnel carrier (1 ) is connected.
Lateral electromechanical linear movement module (1 5) : The carrier conf iguration which enables back and forth movement of the funnel carrier (1 ) on the f ixed body (2) of the movement module (3) to which the funnel carrier is connected by driving the lateral movement shaft (12) .
Digital camera (6) : Optical measurement component connected to the electronic control software, which enables precise height and position calibration of the funnel carrier (1 ) compared to the center of the mold (5) through high-resolution images during initial setup. Calibration shaft (7) : Enables position calibration of the funnel carrier (1 ) after the electronic control software determines the angular calibration points of the funnel carrier (1 ) according to the center of the mold (5) during initial setup. During production, the operator can calibrate the funnel's (10) position manually by means of the calibration shaft (7) .
Calibration encoder (8) : This is the component which detects, measures and transfers to the PC software the angular and positional changes made with the calibration shaft (7) and the calibration screw during the initial setup and production.
Operator screen: This is the screen where the images received by the camera (6) are processed, the distance between the mold (5) and the funnel (10) is digitalized on the coordinate plane and displayed graphically, and which emits signal when the funnel centers overlap. All components described above are integrated into the glass forming machine (9) shown on f igure 7, with the setup conf iguration shown on Figure 1 , Figure 3 and Figure 6. The calibration during the initial setup is made when the invented calibration mechanism is on the glass forming machine (9) , and they are shown on the f igures as a conf iguration independent from the glass forming machine (9) in order to detail the mechanism. I n addition, in the known technique, the molten glass drop passes through the funnel
(10) during production, and after it is transferred to the mold, the function of withdrawing the funnel (10) into the glass forming machine (9) is carried out by means of a biaxial cam
(1 1 ) as shown on Figure 8-10, and it is realized by the funnel carrier (1 ) , f ixed body (2) , movement module (3) , lateral and vertical electromechanical linear movement modules (15 and 4) and electromechanical linear movement module shaft (12) elements on the glass forming machine (9) where the invented calibration mechanism is used. After the funnel carrier (1 ) is withdrawn in the glass forming machine (9) , the cooling mechanism approaches the mold (5) and cools down the glass product in the mold (5) .
Claims
CLAI MS
A calibration and movement mechanism which enables calibrating the height of the funnel carrier ( 1 ) and as a result the funnel ( 10) against the mold (5) , and its position against the center of the mold (5) during production and initial setup due to part or mold (5) replacement on the glass forming machine (9) is the key element of the invention herein which suggests an enhancement in the glass forming machine (9) where glassware made of soda-lime, borosilicate and opal glasses are formed in a mold (5) by means of the centrifugal forces, characterized in that it enables positioning, monitoring and recording the coordinates of the funnel carrier ( 1 ) and consequently the funnel (10) digitally according to the center of the mold (5) , and comprises;
• A fixed body (2) which includes and supports all elements of the invented calibration and movement mechanism together with the funnel carrier ( 1 ) ,
• A movement module (3) which moves up and down and back and forth on the fixed body (2) by means of the lateral and vertical electromechanical linear movement modules ( 15 and 4) and to which the funnel carrier (1 ) is connected; which therefore can reposition the funnel carrier ( 1 ) ,
• A vertical electromechanical linear movement module (4) which enables up/down movement of the funnel carrier (1 ) on the fixed body (2) of the movement module (3) to which the funnel carrier is connected,
• A lateral electromechanical linear movement module ( 15) which enables back and forth movement of the funnel carrier ( 1 ) on the fixed body (2) of the movement module (3) to which the funnel carrier is connected by driving the lateral movement shaft ( 12) ,
• A calibration shaft (7) which enables manual position calibration of the funnel (10) by the operator during production and realizing position calibration of the funnel carrier (1 ) after the electronic control software determines the angular calibration points of the funnel carrier (1 ) according to the center of the mold (5) during initial setup and
• A calibration encoder (8) which detects, measures and transfers to the PC software the angular and positional changes made with the calibration shaft (7) and the calibration screw during the initial setup and production.
A calibration mechanism according to Claim 1 , characterized in that in another application of the invention, it includes a digital camera (6) for more precise height and position calibration of the funnel carrier (1 ) and consequently the funnel (10) against the mold (5) and the center of the mold (5) , respectively.
A calibration mechanism according to Claim 1 , characterized in that it comprises an operator screen where the images received by the camera (6) are processed, the distance between the mold (5) and the funnel ( 10) is digitalized on the coordinate plane and displayed graphically, and which emits a signal when the funnel centers overlap.
A calibration mechanism according to Claim 1 , characterized in that; in another application of the invention, it includes lateral and vertical linear motors which enable the up/down movement and the forward/backward movement of the funnel carrier (1 ) on the movement module (3) where it is connected on a fixed body (2) .
A calibration mechanism according to Claim 1 , characterized in that ; it comprises a setting screw on the top part of the mold (5) for angular centering of the funnel carrier (1 ) against the mold.
A calibration mechanism according to Claim 1 , characterized in that it is integrated into the glass forming machine (9) .
A calibration mechanism according to Claim 1 , characterized in that, after the molten glass drop passes through the funnel (10) to the mold, the withdrawal of the funnel (10) into the glass forming machine (9) is carried out by means of the funnel carrier (1 ) , fixed body (2) , movement module (3) , lateral and vertical electromechanical linear movement modules ( 15 and 4) and the electromechanical linear movement module shaft (1 2) .
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TR2016/17397A TR201617397A2 (en) | 2016-11-29 | 2016-11-29 | A GLASS FORMING MACHINE |
| TR2016/17397 | 2016-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2018101900A1 true WO2018101900A1 (en) | 2018-06-07 |
Family
ID=62242633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/TR2017/050575 WO2018101900A1 (en) | 2016-11-29 | 2017-11-20 | A glass forming machine |
Country Status (2)
| Country | Link |
|---|---|
| TR (1) | TR201617397A2 (en) |
| WO (1) | WO2018101900A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4120683A (en) * | 1977-08-01 | 1978-10-17 | Owens-Illinois, Inc. | Funnel arm operating mechanism |
| US5746798A (en) * | 1993-07-16 | 1998-05-05 | Owens-Brockway Glass Container Inc. | Control of glass gob delivery for simultaneous arrival at blank molds |
| EP0909740A2 (en) * | 1997-10-14 | 1999-04-21 | Owens-Brockway Glass Container Inc. | Method and apparatus for introducing glass gobs into a glass container forming machine |
-
2016
- 2016-11-29 TR TR2016/17397A patent/TR201617397A2/en unknown
-
2017
- 2017-11-20 WO PCT/TR2017/050575 patent/WO2018101900A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4120683A (en) * | 1977-08-01 | 1978-10-17 | Owens-Illinois, Inc. | Funnel arm operating mechanism |
| US5746798A (en) * | 1993-07-16 | 1998-05-05 | Owens-Brockway Glass Container Inc. | Control of glass gob delivery for simultaneous arrival at blank molds |
| EP0909740A2 (en) * | 1997-10-14 | 1999-04-21 | Owens-Brockway Glass Container Inc. | Method and apparatus for introducing glass gobs into a glass container forming machine |
Also Published As
| Publication number | Publication date |
|---|---|
| TR201617397A2 (en) | 2018-06-21 |
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