WO2010102590A2 - Linear opening and closing mechanism of moulds of a container glass machine - Google Patents

Linear opening and closing mechanism of moulds of a container glass machine Download PDF

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Publication number
WO2010102590A2
WO2010102590A2 PCT/CZ2010/000015 CZ2010000015W WO2010102590A2 WO 2010102590 A2 WO2010102590 A2 WO 2010102590A2 CZ 2010000015 W CZ2010000015 W CZ 2010000015W WO 2010102590 A2 WO2010102590 A2 WO 2010102590A2
Authority
WO
WIPO (PCT)
Prior art keywords
moulds
holders
mould
drive
closing mechanism
Prior art date
Application number
PCT/CZ2010/000015
Other languages
French (fr)
Other versions
WO2010102590A3 (en
Inventor
Radek Cerny
Original Assignee
Sklostroj Turnov Cz, S.R.O.
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
Application filed by Sklostroj Turnov Cz, S.R.O. filed Critical Sklostroj Turnov Cz, S.R.O.
Publication of WO2010102590A2 publication Critical patent/WO2010102590A2/en
Publication of WO2010102590A3 publication Critical patent/WO2010102590A3/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B9/00—Blowing glass; Production of hollow glass articles
    • C03B9/30—Details of blowing glass; Use of materials for the moulds
    • C03B9/34—Glass-blowing moulds not otherwise provided for
    • C03B9/353—Mould holders ; Mould opening and closing mechanisms
    • C03B9/3537—Mechanisms for holders of half moulds moving by linear translation

Definitions

  • the invention relates to a linear opening and closing mechanism of moulds of a container glass machine comprising a frame on which two mould holders are mounted against each other in a linearly sliding manner while the mould holders are interconnected with a drive.
  • a gob of molten glass in a mouldable condition is introduced to the moulding (or forming) cavity of the blank mould from the top. It is subsequently compressed by the plunger mechanism by being forced into the shaping cavity for formation of the semi-finished glass product called parison while the shape of the inner surface of the parison is determined by the shape of the outer surface of the plunger head and the shape of the outer surface of the parison is determined by the inner shape of the blank mould cavity.
  • the mechanism of linear opening and closing of the moulds for the blank mould opens and the produced parison is removed from the blank mould and transferred by the Invert mechanism to the open mechanism of linear open and closing of moulds for the blow moulds.
  • the mechanism of linear open and closing of moulds for the blow mould closes and shaping of the final form follows. After the completion of the final moulding the linear opening and closing mechanism of the moulds for the blow mould opens and the finished product is removed from the area of the linear mould open and closing mechanism by the Take-Out mechanism to the dead plate. In one working cycle the container glass machine processes one or more gobs of molten glass at the same time.
  • Patent no. US 6318129 describes a design of a linear mould opening and closing mechanism by means of an elevating screw on which two nuts move from or towards each other depending on the turning direction and the movement of the nuts causes the mould holders to move.
  • a disadvantage is the limiting critical speed of the elevating screw and consequently relatively slow opening and closing of the moulds.
  • Another disadvantage is relatively quick wear of the bearings.
  • Patent no. US 4009018 deals with a linear mould opening and closing mechanism using a crank mechanism with a connecting rod
  • patent no. US 5578105 describes a similar mechanism using a crank mechanism with a connecting rod with a transversal "T" guide.
  • a disadvantage of linear opening and closing of moulds with the use of a crank mechanism with a connecting rod is a high number of mechanical components resulting in addition of production inaccuracies and partial rigidities that have a negative impact on the overall rigidity. With regard to unilateral mounting such a design is sensitive to additional forces that may cause undesired deformations. Another disadvantage is relatively quick wear of the bearings.
  • linear mould opening and closing mechanism naturally refers to a mechanism that does not only close moulds, but opens them as well.
  • each mould holder a separate drive is installed that carries an eccentric.
  • the eccentric comprises a disk mounted on the output shaft of the drive while an eccentrically mounted pin protrudes from the disk and reaches into a groove in the mould holder.
  • the eccentric comprises a crank with an eccentrically located pin.
  • the mould holders are mounted in a sliding way in guides arranged on the frame as well as on a rod that is firmly fixed to the frame.
  • the drive may comprise of an electric motor with a gearbox installed on it.
  • Fig. 1 shows the linear opening and closing mechanism of moulds of a container glass machine in a spatial view, including the moulds.
  • Fig. 2 presents the linear opening and closing mechanism of moulds of a container glass machine in a partial cross- section without the inserts of the moulds and without the moulds, illustrating the sliding mounting of the pin in the mould holder.
  • Fig. 3 shows the linear opening and closing mechanism of moulds of a container glass machine in the ground plan in the open position without the inserts of the moulds and without the moulds.
  • Fig. 1 shows the linear opening and closing mechanism of moulds of a container glass machine in a spatial view, including the moulds.
  • Fig. 2 presents the linear opening and closing mechanism of moulds of a container glass machine in a partial cross- section without the inserts of the moulds and without the moulds, illustrating the sliding mounting of the pin in the mould holder.
  • Fig. 3 shows the linear opening and closing mechanism of moulds of a container glass machine in the ground plan in the open position without
  • Fig. 4 shows the linear opening and closing mechanism of moulds of a container glass machine in the ground plan in the closed position without the inserts of the moulds and without the moulds.
  • Fig. 5 presents a kinematic diagram of a half of the linear opening and closing mechanism of moulds of a container glass machine.
  • Fig. 6 illustrates the eccentric as a disk with an eccentrically located pin.
  • Fig. 7 shows the eccentric as a crank with an eccentrically located pin.
  • the linear opening and closing mechanism 1 of moulds 14 of a container glass machine in particular a double-GOB machine (see fig. 1 , 2, 3 and 4) comprises a frame 11 on which two holders 4 of the moulds 14 are mounted against each other in a linearly sliding manner.
  • the holders 4 of the moulds 14 are mounted in a sliding way in a guide 6 with the shape of a groove, firmly attached to the frame 11 , and also on a rod 3, firmly fixed to the frame 11 via an arm 2.
  • the rod 3 has a circular or another suitable geometrical cross-section.
  • Each of the holders 4 of the moulds 14 is interconnected with the corresponding drive 9 via an eccentric 7, which comprises a disk mounted on the output shaft of the drive 9, while from the disk an eccentrically mounted pin 8 protrudes into the groove 13 in the bottom part of the holder 4 of the mould 14.
  • an eccentric 7 is mounted on the pin 8 in a rotary way. A detail of such an eccentric 7 is shown in fig. 6.
  • the linear opening and closing mechanism 1 of moulds 14 of a container glass machine works as follows:
  • the eccentrics 7 have the opposite rotation direction and when it is necessary to close the moulds 14 the eccentrics 7 turn to the required position and the rotational movement of the eccentrics 7 is transformed to the linear sliding movement of the holders 4 of the moulds 14 by the movement of the pins 8 in the grooves 13, causing the holders 4 of the moulds 14 to slide in the guide 6 and on the rod 3. This way the moulds 14 are closed (see fig. 4).
  • the eccentrics 7 turn back causing retraction of the holders 4 of the moulds 14 and opening of the moulds 14 (see fig. 3).
  • the linear opening and closing mechanism 1 of moulds 14 of a container glass machine is principally the same for the blank mould as well as the blow mould, which is not shown here.
  • Moulds 14 with a different suspension can be replaced in the holder 4 of the moulds 14 by unscrewing one nut 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Transmission Devices (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

A mechanism (1) of linear open and closing of moulds (14) of a container glass machine comprising a frame (11) on which two holders (4) of the moulds (14) are installed against each other in a linearly sliding manner. The holders (4) of the moulds (14) are interconnected with a drive (9). The holders (4) of the moulds (14) are interconnected with the drive (9) via an eccentric (7).

Description

Linear opening and closing mechanism of moulds of a container glass machine
Technical Field
The invention relates to a linear opening and closing mechanism of moulds of a container glass machine comprising a frame on which two mould holders are mounted against each other in a linearly sliding manner while the mould holders are interconnected with a drive.
Background Art
At the beginning of the cycle of a container glass machine the mechanism of linear opening and closing of the moulds for the blank mould closes, a gob of molten glass in a mouldable condition is introduced to the moulding (or forming) cavity of the blank mould from the top. It is subsequently compressed by the plunger mechanism by being forced into the shaping cavity for formation of the semi-finished glass product called parison while the shape of the inner surface of the parison is determined by the shape of the outer surface of the plunger head and the shape of the outer surface of the parison is determined by the inner shape of the blank mould cavity. Then, the mechanism of linear opening and closing of the moulds for the blank mould opens and the produced parison is removed from the blank mould and transferred by the Invert mechanism to the open mechanism of linear open and closing of moulds for the blow moulds. The mechanism of linear open and closing of moulds for the blow mould closes and shaping of the final form follows. After the completion of the final moulding the linear opening and closing mechanism of the moulds for the blow mould opens and the finished product is removed from the area of the linear mould open and closing mechanism by the Take-Out mechanism to the dead plate. In one working cycle the container glass machine processes one or more gobs of molten glass at the same time.
Patent no. US 6318129 describes a design of a linear mould opening and closing mechanism by means of an elevating screw on which two nuts move from or towards each other depending on the turning direction and the movement of the nuts causes the mould holders to move.
A disadvantage is the limiting critical speed of the elevating screw and consequently relatively slow opening and closing of the moulds. Another disadvantage is relatively quick wear of the bearings.
Patent no. US 4009018 deals with a linear mould opening and closing mechanism using a crank mechanism with a connecting rod and patent no. US 5578105 describes a similar mechanism using a crank mechanism with a connecting rod with a transversal "T" guide.
A disadvantage of linear opening and closing of moulds with the use of a crank mechanism with a connecting rod is a high number of mechanical components resulting in addition of production inaccuracies and partial rigidities that have a negative impact on the overall rigidity. With regard to unilateral mounting such a design is sensitive to additional forces that may cause undesired deformations. Another disadvantage is relatively quick wear of the bearings.
The goal of the presented invention is to design a linear opening and closing mechanism of moulds that will not exhibit the above mentioned shortcomings. To avoid doubt, the term linear mould opening and closing mechanism naturally refers to a mechanism that does not only close moulds, but opens them as well.
Disclosure of Invention
The above mentioned goal is achieved with a linear opening and closing mechanism of moulds of a container glass machine that comprises a frame on which two mould holders are mounted in a linearly sliding manner while the holders are interconnected with the drive, based on a invention the principle of which is that the mould holders are interconnected with the drive via an eccentric. Such a design is simple from the structural point of view and at the same time reliable. The movement of the mould holders is quick and exact.
In a preferred embodiment under each mould holder a separate drive is installed that carries an eccentric.
In another preferred embodiment the eccentric comprises a disk mounted on the output shaft of the drive while an eccentrically mounted pin protrudes from the disk and reaches into a groove in the mould holder.
In still another preferred embodiment the eccentric comprises a crank with an eccentrically located pin.
To ensure maximum possible rigidity the mould holders are mounted in a sliding way in guides arranged on the frame as well as on a rod that is firmly fixed to the frame.
The drive may comprise of an electric motor with a gearbox installed on it.
Brief Description of Drawings
The linear opening and closing mechanism of moulds of a container glass machine based on the invention will be described in a more detailed way with the use of examples of particular embodiments shown in the drawings. Fig. 1 shows the linear opening and closing mechanism of moulds of a container glass machine in a spatial view, including the moulds. Fig. 2 presents the linear opening and closing mechanism of moulds of a container glass machine in a partial cross- section without the inserts of the moulds and without the moulds, illustrating the sliding mounting of the pin in the mould holder. Fig. 3 shows the linear opening and closing mechanism of moulds of a container glass machine in the ground plan in the open position without the inserts of the moulds and without the moulds. Fig. 4 shows the linear opening and closing mechanism of moulds of a container glass machine in the ground plan in the closed position without the inserts of the moulds and without the moulds. Fig. 5 presents a kinematic diagram of a half of the linear opening and closing mechanism of moulds of a container glass machine. Fig. 6 illustrates the eccentric as a disk with an eccentrically located pin. Fig. 7 shows the eccentric as a crank with an eccentrically located pin.
Modes for Carrying Out the Invention
The linear opening and closing mechanism 1 of moulds 14 of a container glass machine, in particular a double-GOB machine (see fig. 1 , 2, 3 and 4) comprises a frame 11 on which two holders 4 of the moulds 14 are mounted against each other in a linearly sliding manner. The holders 4 of the moulds 14 are mounted in a sliding way in a guide 6 with the shape of a groove, firmly attached to the frame 11 , and also on a rod 3, firmly fixed to the frame 11 via an arm 2. The rod 3 has a circular or another suitable geometrical cross-section.
Under the frame 11 two drives 9 are installed (see fig. 1 and 2) either of which comprises of a motor 12 on which a planetary gearbox 10 is mounted.
Each of the holders 4 of the moulds 14 is interconnected with the corresponding drive 9 via an eccentric 7, which comprises a disk mounted on the output shaft of the drive 9, while from the disk an eccentrically mounted pin 8 protrudes into the groove 13 in the bottom part of the holder 4 of the mould 14. To reduce friction a sliding block is mounted on the pin 8 in a rotary way. A detail of such an eccentric 7 is shown in fig. 6.
Experts will find it obvious that any known eccentric may be used, e.g. a crank with an eccentrically mounted pin in accordance with fig. 7.
The linear opening and closing mechanism 1 of moulds 14 of a container glass machine according to the invention works as follows: The eccentrics 7 have the opposite rotation direction and when it is necessary to close the moulds 14 the eccentrics 7 turn to the required position and the rotational movement of the eccentrics 7 is transformed to the linear sliding movement of the holders 4 of the moulds 14 by the movement of the pins 8 in the grooves 13, causing the holders 4 of the moulds 14 to slide in the guide 6 and on the rod 3. This way the moulds 14 are closed (see fig. 4). When it is necessary to open the moulds 14, the eccentrics 7 turn back causing retraction of the holders 4 of the moulds 14 and opening of the moulds 14 (see fig. 3).
The linear opening and closing mechanism 1 of moulds 14 of a container glass machine is principally the same for the blank mould as well as the blow mould, which is not shown here.
If the moulds 14 are replaced, it is not necessary to replace the holders 4 of the moulds 14, but depending on the size of the moulds 14 only the inserts (not shown) in the holders 4 of the moulds 14 are replaced.
Moulds 14 with a different suspension can be replaced in the holder 4 of the moulds 14 by unscrewing one nut 15.

Claims

1. A linear opening and closing mechanism (1) of moulds (14) of a container glass machine comprising a frame (11) on which two holders (4) of the moulds (14) are installed against each other in a linearly sliding manner while the holders (4) of the moulds (14) are interconnected with a drive (9), characterized in that the holders (4) of the moulds (14) are interconnected with the drive (9) via an eccentric (7).
2. The mechanism according to claim 1 , characterized in that under each holder (4) of the mould (14) a separate drive (9) is installed, which carries an eccentric (7).
3. The mechanism according to claim 1 or 2, characterized in that the eccentric (7) comprises a disk mounted on the output shaft of the drive (9) while from the disk an eccentrically mounted pin (8) protrudes into a groove (13) in the holder (4) of the mould (14).
4. The mechanism according to claim 1 or 2, characterized in that the eccentric (7) comprises a crank with an eccentrically located pin.
5. The mechanism according to any of claims 1 to 4, characterized in that the holders (4) of the moulds (14) are installed in a linearly sliding manner in a guide (6) mounted on the frame (11) and also on a rod (3) that is firmly attached to the frame (11).
6. The mechanism according to any of claims 1 to 5, characterized in that the drive (9) comprises a motor (12) on which a gearbox (10) is mounted.
PCT/CZ2010/000015 2009-03-12 2010-02-09 Linear opening and closing mechanism of moulds of a container glass machine WO2010102590A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ200920977U CZ19536U1 (en) 2009-03-12 2009-03-12 Mechanism of linear closing of glass machine molds
CZPUV2009-20977 2009-03-12

Publications (2)

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WO2010102590A2 true WO2010102590A2 (en) 2010-09-16
WO2010102590A3 WO2010102590A3 (en) 2010-11-04

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PCT/CZ2010/000015 WO2010102590A2 (en) 2009-03-12 2010-02-09 Linear opening and closing mechanism of moulds of a container glass machine

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CZ (1) CZ19536U1 (en)
WO (1) WO2010102590A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20120314A1 (en) * 2012-04-10 2013-10-11 Bruno Viada MECHANISM MOLDS FOR CABLE GLASS FORMING MACHINE
WO2015192940A1 (en) 2014-06-16 2015-12-23 Heye International Gmbh Closing mechanism for the mold halves of an i.s. machine
EP3153477A1 (en) 2015-10-07 2017-04-12 Heye International GmbH Locking mechanism for a glassware forming machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190416600A (en) * 1904-07-27 1904-09-15 Robert Good Improvements in Apparatus for the Manufacture of Glass-ware.
US6684665B1 (en) * 1999-09-15 2004-02-03 Hermann Heye Device for driving two mold halves of a glass forming machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190416600A (en) * 1904-07-27 1904-09-15 Robert Good Improvements in Apparatus for the Manufacture of Glass-ware.
US6684665B1 (en) * 1999-09-15 2004-02-03 Hermann Heye Device for driving two mold halves of a glass forming machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20120314A1 (en) * 2012-04-10 2013-10-11 Bruno Viada MECHANISM MOLDS FOR CABLE GLASS FORMING MACHINE
WO2015192940A1 (en) 2014-06-16 2015-12-23 Heye International Gmbh Closing mechanism for the mold halves of an i.s. machine
DE102014008534A1 (en) 2014-06-16 2016-01-14 Heye International Gmbh Locking mechanism for the mold half of an I.S. machine
DE102014008534B4 (en) 2014-06-16 2018-03-22 Heye International Gmbh Locking mechanism for the mold half of an I.S. machine
US10150688B2 (en) 2014-06-16 2018-12-11 Heye International Gmbh Closing mechanism for the mold halves of an I.S. machine
EP3153477A1 (en) 2015-10-07 2017-04-12 Heye International GmbH Locking mechanism for a glassware forming machine

Also Published As

Publication number Publication date
CZ19536U1 (en) 2009-04-14
WO2010102590A3 (en) 2010-11-04

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