CZ300342B6 - Metal mold opening/closing mechanisms for I.S. machine - Google Patents

Abstract

In the present invention, there is disclosed a metal mold opening/closing mechanisms for an I.S. machine having a plurality of individual sections, each section comprising a section frame (11A), a pair of opposite metal mold holding mechanisms (16) being supported on the apex (94) of the section frame (11A) in such a manner that metal mold may be rectilinearly displaced between separated retraction positions where the respective metal mold holding mechanisms (16) are arranged in start positions and advance positions where the metal molds held by the metal mold holding mechanisms (16) are forcibly engaged wherein the supporting means are formed by the section frame (11A) comprising a housing (90) extending upward from a base portion (93), a first and second round shafts (50C) provided with bearings (170) disposed within the housing (90) and supporting said round shafts (50C) that are situated parallel to each another in horizontal direction relative to sliding feed of the mold holding mechanisms (16) wherein said mold holding mechanisms (16) are secured at free ends of the round shafts (50C) distant from the housing (90). The invention also relates to a mold carrier assembly attached to the supporting housing (90) having a pair of parallel horizontal elongate bores (91) situated on the top wall of the I.S. machine section frame (11A) comprising the mold holding mechanism (16) including upper and lower inserts (24) for supporting at least one mold half, the carrier (30) and a vertical rotary shaft (27) for mounting the inserts (24) onto the carrier (30) and the first and second parallel round shafts (50C) secured at their one end to the carrier (30) extending in horizontal direction wherein said first and second round shafts (50C) have free ends distant from the carrier (30) and is slidably mounted in horizontally extending bores (91) in the housing 90).

Description

Mechanism for opening and closing molds in IS machine

Technical field

The present invention relates to IS (individual sectional) machines that convert batches of molten glass into bottles in a two-stage manufacturing process, and in particular it relates to the mechanisms for opening and closing the forums in the machine.

BACKGROUND OF THE INVENTION

The first IS machine was patented in US patents registered under US 1,843,159 of February 2, 1932 and US 1,911,119 of May 23, 1933. At present, more than 4,000 IS machines from various manufacturers are used worldwide, each of which they produce over a million bottles a day.

Such an IS (individual sectional) machine has a number of identical sections (a sectional frame in which and on which a certain number of sectional mechanisms are mounted), each of which has a front molding station that transforms one or more batches of molten glass delivered into a flask having a threaded hole (mouth of the bottle) at the bottom, and a blow station into which the flasks enter and rewound on the bottles standing in an upright position with the mouth facing upwards. The inverting and holding mechanism of the orifices comprising a pair of opposed arms that rotate about the inverting axis, transfer the flasks from the front molding station to the blow station and, during the manufacturing process, invert these flasks from the position in which they are. the mouth of the bottles face

2? down. to the position in which they go up the bottle. The bottle produced in the blow station sc is removed from the section by a takeout mechanism.

The performance was improved by increasing the speed of the IS machine (section cycle time) by increasing the number of molten glass batches processed during one section from one to two, three and even four, and by increasing the number of sections. Lato improvements were made without significantly increasing the width of the section. This was essential because the measure of performance is understood as the number of bottles produced per unit of time over a given machine width, ie actual performance. This means that. if sc increases the width of the sc by six sections to the width of a standard ten section machine by adjusting the sc while maintaining the original speed and section performance, sc decreases the actual performance by 40%.

The front mold station includes opposite pairs of front molds, and the final blow station comprises opposite pairs of finite forums. These molds are displaceable between open (separate) and closed positions. Opposite pairs of oral circular forms that are

4i) moved (carried near their tops) by the mechanism for inverting and holding circular orifices, defining the orifice of the bottle and maintaining the formed bulb during transfer from the front molding station to the blow station.

The front molds and final molds of the aforementioned US Patent No. 1,843,159 are supported on inserts 45 displaced by opposite carriers that are rotatable about a common axis of rotation in front of the molds (front to back movement is determined by the flask movement from the front molding stations to the blowing stations). the motor (liquid-actuated motor) controls the operation of both the front mold support mechanism and the final mold support mechanism. A linear motor for controlling the operation of the front forging mechanism is mounted at the front of the axis of rotation of the front forging mechanism and protrudes horizontally outward from the front of the section frame and a pair of link chains interconnects the output of the front-side motor to the final mold. The linear motor for controlling the operation of the finiteforce support mechanism is mounted vertically on the side of the pivot axis. These mechanisms at each station are generally referred to as mold opening and closing mechanisms. This original IS machine has evolved into a machine in which motors, liquid-actuated cylinders, or rotary-output motors are located below the molds and each motor is connected to an associated pair of mold carriers via transmissions. which are guided vertically from the bottom of the section at the front or back of the pair of the mold support mechanism (see U.S. Patents 4,362,544 and 4,427,431). The drive link couplings exert torsional forces which are undesirable on the carriers. In addition, the drive linkages must be designed with respect to the specific shapes of the molds, and therefore both the entire linkage and the mold support mechanism require related changes when switching from processing one batch of molten glass to processing another batch of molten glass. In such machines, the front-molding shutter mechanism and the funnel mechanism must be located on the side of the section near the device, making it difficult to maintain and repair these mechanisms and forcing adjacent sections out of service. There is nothing in these mechanisms for opening and closing molds. This would block the molds in the necessary mold closing positions during flask formation, as a result of which the mold halves may be pushed apart and cause the vertical seam to expand on the flask and hence the shoe bottle. To avoid this, the articulated connections must be designed in such a way as to prevent the molds from opening in the closed position (see U.S. Pat. No. 5,019,147).

The embodiment of the IS machine described in U.S. Pat. No. 4,070,174 is called an AIS machine. In this machine, which is still sold today, the pairs of the mold holding mechanism are mounted so. to perform axial ("A") movement instead of rotary movement, with the respective motors controlling their operation in the usual manner. The machine, which is derived from the IS machine, has the name ΙΊΤ machine and is described in U.S. Patent 4,443,241. This machine, which has three molding stations [front, reheating and blowing, or triple forming, .IT ' ^L ' J. was not successful. In this machine, the motor for the pairs of front and blow molds was a vertically directed linear motor that was positioned immediately below the center of the molds. This machine also moved the halves of the front and blow molds axially.

Such mold opening and closing mechanisms are complex, containing a very large number of components, which are specially designed for a specific machine configuration that occupies a significant portion of the frame or section box. Because of this, these mechanisms are very costly and often changing the specific arrangement of the machine under operating conditions requires a rebuild of the machine by replacing the entire mechanism. This in turn makes it difficult to assemble the necessary tubing for the section mechanisms. The working air must be supplied in the ducts before. beyond or the surface of the section frame and such a tubular distribution is then very expensive. In addition, a major problem with IS machines is that the increase in dimensions due to heat on the mold side is reflected towards the axis of the invert and hold ring mechanism, while the increase in dimension due to heat on the blow mold side is reflected away from the axis of the turning and holding a circular orifice. Finally, the effect of the force will not be transmitted directly to the mold-bearing intermediaries because the carrier carrying these intermediates is in the force path, so that these intermediaries may be subjected to the twisting forces when the clamping load is applied.

SUMMARY OF THE INVENTION

The present invention provides a mechanism for opening and closing molds in an IS machine comprising individual sections, each section comprising a sectional frame, a pair of oppositely positioned mold-holding mechanisms, support means for supporting each of the mold-holding mechanisms disposed on the top surface of the sectional frame to a rectilinear the displacement of the mold holding mechanism between the withdrawal position in which the molds are open and the retracted position in which the molds held by the mold holding mechanisms are firmly contacted are closed, the support means forming a chopping frame comprising a housing extending upwardly from the pedestal portion, and a second annular shaft provided with bearings located in the housing which support the annular shafts spaced parallel to each other in a horizontal direction to slide the mold-holding mechanisms, the mold-holding mechanisms being u mounted on the free ends of the circular shafts remote from the housing.

Further, the invention is based on this. that the bearings for supporting the first and second circular shafts parallel in the horizontal direction carry the first and second circular shafts in the horizontal direction parallel at substantially the same distance from the center of the mold holding mechanisms and that the bearings for the bearings? The first and second circular shafts spaced parallel in the horizontal direction are also spaced in the vertical direction.

Furthermore, the present invention provides a mechanism for opening and closing molds in an IS machine, comprising first and second circular shafts adapted to slide out of the support means together with a mold holding mechanism mounted to the first and second circular shafts and adapted to be replaced by other holding the molds fixed to the other pair of the first and second circular shafts.

The invention furthermore relates to a mold support assembly mounted to a support housing, having a pair in parallel. spaced horizontally extending apertures disposed on the top wall of the sectional frame of the IS machine that includes a mold holding mechanism including an insertion upper and lower intermediate. for supporting at least one half of the mold, a carrier and a rotary shaft for mounting the inserting intermediate members on the carrier, and first and second parallel-located circular shafts mounted one end to the carrier extending in a horizontal direction, the first and second circular shafts having

2o a free end remote from the carrier and slideably inserted into horizontally extending openings in the housing, the first and second circular shafts being in a horizontal direction, substantially equidistant from the center of gravity of the mold holding mechanism, and the first and second circular shafts being spaced apart a vertical direction substantially equidistant from the center of gravity of the mold holding mechanism.

It is an advantage of the present invention to provide an improved mold opening and closing mechanism that overcomes the aforementioned drawbacks of the prior art machines.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention and its advantages will be apparent from the following description of exemplary embodiments with the accompanying drawings which illustrate preferred embodiments incorporating the principles of the invention and in which:

FIG. 1 is a schematic drawing of an IS machine with a number of identical sections each section having

3? forward station and final station;

Fig. 2 is a perspective view showing a mechanism for opening and closing molds of one of the station stations;

Fig. 3 is an axonometric view showing the interconnection of one of the mold holding mechanisms with a lead screw drive assembly;

Fig. 4o is a side cross-sectional side view of the lead screw assembly shown in Fig. 4.

FIG. 5 is a front elevational view of the lead screw drive assembly shown in FIG. 3;

Fig. 6 is an axonometric view of a design of a transmission housing that is separate from its holder;

Fig. 7 is an axonometric view which illustrates how the placement of a mold holding mechanism is provided to allow a linear displacement in a direction perpendicular to the clamping plane:

Fig. 8 is an axonometric view of the mechanism for reversing and holding the circular orifice. carrying out the transfer of flasks from front molds to final molds;

s (> Fig. 9 is a view similar to that of Fig. 7 and showing a second embodiment of the mold-holding mechanism, the position of which allows for linear displacement;

FIG. 10 is a view similar to FIG. 6 showing a transitional housing corresponding to the embodiment shown in FIG. 9; FIG.

FIG. 11 is a cross-sectional view of a portion of the mold-holding mechanism shown in FIG. 9; how one of the circular shafts can compensate for the increase in heat;

Fig. 12 is an axonometric view showing the lead screw cover and transmission;

FIG. 13 is an axonometric view showing a machine bed that carries individual sections of the machine IS;

Fig. 14 is an axonometric view of a portion of a machine bed;

FIG. 15 is a first embodiment of an electronic block diagram illustrating operation of the mold opening and closing mechanism;

Fig. I5A is an illustrative embodiment of an electronic block diagram illustrating the control of ntechaism for opening and closing molds:

Fig. 16 is a first flow chart showing the control algorithm of the mold opening and closing mechanism;

Fig. 16A is a second flow chart illustrating a mold opening and closing control mechanism; Fig. 17 is an axonometric view of a front mold station of a sectional shutter demonstrating mechanism mounted at a corner of a top wall of a section frame;

Fig. 18 is a side cross-sectional view of the actuating portion of the breech head mechanism shown in Fig. 17;

Fig. 19 is a cross-sectional front view showing the cap head above the front mold of the IS machine;

Fig. 20 is a view similar to Fig. 19 illustrating a situation where the breech head engages the front mold in a first position;

Fig. 21 is a view similar to Fig. 19 showing a situation where the breech head engages the front mold in a second position;

FIG. 22 is a perspective view of the capping head; and Fig. 23 is a flowchart showing the operation of the actuator of the breech mechanism.

Giant. 24 is a view curved sc similar to FIG. 17 and showing a funnel arm mechanism mounted on a section frame:

Fig. 25 is an axonometric view of an alternative embodiment of the mouth turning and holding mechanism used in conjunction with the mold opening and closing mechanism shown in Figs. 9 and 10;

Fig. 26 is a view taken along line 26-26 of Fig. 25;

Fig. 27 is an axial view of a worm gear housing-motor housing connection;

Fig. 28 is a flow chart illustrating an inversion algorithm;

Fig. 29 is a flowchart showing an oral ring opening algorithm;

FIG. 30 is a flow chart showing a return algorithm;

Fig. 31 is an axonometric view of the plunger mechanism of the front molding station shown partially in Fig. 17;

Fig. 32 is an axonometric view of a single plunger canister:

Fig. 33 is an axonometric view of the plunger mounting plate;

Fig. 34 is an axonometric, separate view showing the interconnection of the first four service lines led to the bottom of the plunger distributor base;

Fig. 35 is an axonometric view of a front face of a junction box;

Fig. 36 is an axonometric view of the upper surface of the junction box;

Fig. 37 is an axonometric view of the top side and front face of the plunger distributor base;

FIG. 38 is an axonoinetric view of a phinzer transition plate; FIG.

Fig. 38A is a view similar to Fig. 38 showing an alternative plunger transition plate;

Fig. 39 is a view similar to Fig. 31 showing an alternative mounting plate; Fig. 40 is an axonoinetric view of a portion of the ring neck holder having an alternative shape;

FIG. 41 is a side cross-sectional view of a first fastener assembly showing a first mold half supported by a mold support intermediate;

Fig. 42 is a side cross-sectional view of a second mounting assembly showing the second mold half supported by the mold support intermediate;

Fig. 43 is a side cross-sectional view of a third mounting assembly showing a third mold half supported by a mold support intermediate; and Fig. 44 is a schematic side cross-section showing a blank mold carried at a front mold station and a blow mold carried at a respective end station;

Fig. 45 is an axonoinetric view of a takeout mechanism that has been constructed in accordance with the resulting conclusions of the present invention;

Fig. 46 schematically illustrates the separation of the takeout arm from the takeout mechanism shown in Fig. 45; and Fig. 47 is a flow chart illustrating a "Z" shifted takeout mechanism control algorithm.

DETAILED DESCRIPTION OF THE INVENTION

The IS machine comprises a number, typically 6, 8, 10, or 12 sections H. The conventional section takes the form of a box frame or section cabinet 11A of Fig. 2 which includes or carries a section mechanism. Each section comprises a front mold station having an opening and closing mechanism 12 for transferring the front molds in which the delivered molten glass batches are converted into flasks, and an end station having an opening and closing mechanism 11 for controlling the final molds into which the flasks enter. , which is then transformed into bottles. In one cycle

5One, two can be processed for each section of the grate. three or four batches of molten glass. and therefore, depending on the number of molten glass batches being processed simultaneously in said one cycle, each machine will be appropriately referred to as a single molten glass batch machine, a two molten glass batch machine, a three molten glass batch machine or a four molten glass batch machine. The takeout mechanism of Fig. 40 removes the made bottles / end stations and transfers them to the outage 11. The outflow mechanism, which is not shown, subsequently transfers the made bottles / outages 11 to the conveyor 15, which transports them away from the machine. The front of the machine or section is the end which is farther from the conveyor, the rear of the machine being the end which is located near the conveyor, and the sides and the machine or sections are perpendicular to said conveyor. Side-to-side movement is a movement equal to 4 (even common with conveyor guidance,

Giant. 2 shows part of a section 11 of a machine for three batches of molten glass produced in accordance with the resulting conclusions of the present invention and is a schematic illustration of the design of a front mold station. The section 11 comprises a box-shaped sectional frame 11A having a top surface 134 of the bed with an upper surface and side walls 132. Each mold opening and closing mechanism 16 comprises a opposed pair of mold holding mechanisms 11. Each mold holding mechanism 11 is coupled to a control assembly means comprising a rotary to linear motion converter 11 mounted on top of the section frame 11A and driven by a control system 19 having a rotary output to move the associated holding mechanism 16.

5 (1 molds rectilinearly in a lateral direction between the retracted, separated position and the retracted position in which the half of the opposite pair of mold holding mechanisms 11 are firmly pressed together. The mold holding mechanisms J6 are the same, but the mechanism for

The mold holding of one station may differ in size from the mold holding mechanism of another station as a result of differences in the manufacturing process which will be well known to those skilled in the art. Since the machine being shown is a machine for three batches of molten glass, each mold holding mechanism 16 carries three mold halves f7 of molds or fines.

3 and 4, the attachment of the mold-holding mechanism to the associated drive system and the means for moving the mold-holding mechanism 16 between the retracted position and the retracted position will now be described. Giant. 4 and 5 show only the mold holding mechanism 16 supporting the mechanism associated with a single section, while FIG.

shows an alternative housing which carries two mold holding mechanisms 16 when two sections adjoin each other and which carries only one mold holding mechanism 16 when no sections adjoin. The control system 1.9 comprises a servomotor 66, with any transmission and / or direction change gear, having a rotary output in the form of a spindle 67 of Fig. 4, which is connected to a lead screw 70, for example spherical or trapezoidal, having an upper right-handed thread and a lower a left-handed thread portion, via a fastener 68. The housing 90 carries a lead screw 70. Both ends of the lead screw are positioned in the housing 90 in a vertical position in suitable, single radial or double ball bearing assemblies 99. The housing has a pedestal portion 93 which is bolted to the upper surface 94Λ, 94B of Fig. 6, two adjacent section frames. If no downstream section is attached, the top wall of the section will be extended outwardly to form a more perfect base for the cabinet with suitable screws 95, opposite side walls 96 that include stiffening ribs 97, and a removable top 98. The lead screw is connected to the converter 8 rotating to a linear motion comprising nut means having a lower left-hand threaded nut 72 and a right-hand threaded upper nut 74 and which are located on said lead screw. The rotary to linear motion converter 11 further comprises means for attaching nuts 72, 74 to the mold holding mechanism, wherein the first pair of lifting members 76 are connected at one end to the upper nut 74, the other pair of lifting members 78 are connected at one end to the lower nut 72 and the yoke 82 has a horizontal bore 91 supporting a transverse, horizontal rotary shaft 80 to which the other ends of the lifting members 76 are pivotally attached. 78. In order to prolong the life of said members, sleeve or flange bushings are used. The arm 82 also has a vertical bore 92 into which the vertical rotating shaft 27 of the mold holding mechanism 16 rotatably enters. As a result, rotating the lead screw 70 in one direction will subsequently slide the mold holding mechanism 16 towards the opposite mold holding mechanism 16 and vice versa. It can be seen that the lifting members 76, 78 form articulated joints that can move between the retracted and retracted positions and which act horizontally between the housing 90 and the mold holding mechanism.

Each mold holding mechanism 16 has a carrier 30 and lower and upper intermediary members 24 that hold the mold halves and which are supported on the carrier 30 on a shaft 27 that passes through vertical holes in the carrier 30, the intermediate members 24 and cc of the yoke 82. The pockets 101 in the carrier 30. It can be seen in the figures that the lead screw is vertical and is guided in the vicinity of the mold holding mechanism J6, with the rotation converter J8 in a linear movement that connects the rotary output of the servomotor with the lead screw and the mold holding mechanism J6. is compactly positioned between the lead screw and the mold holding mechanism 16 on the top surface of the top wall 134 of the section. The rotary to linear motion converter 18 is completely positioned above the top of the chopping frame and creates a load acting near the center, vertically and horizontally, of the mold holding mechanism 16. Vertical because the axis of the horizontal shaft 80 lies midway between the upper intermediate link 24 and the lower intermediate link 24. and horizontal because the axis of the vertical shaft 27 passes through the center of the carrier body 30 and the intermediate links 24. The load is transferred directly from the vertical shaft 27 to the upper intermediate link. 24 and the lower intermediate member 24 acts in a plane that is perpendicular to the mold contact plane and which intersects the mold center, the center of the intermediate mold, or, if there is an even number of molds, the intermediate distance between the mold centers. The direction of application of this load is perpendicular to the contact plane, the clamping plane located between opposite mold halves a, because the vertical rotary shaft 27 pivotally carries the two intermediate links 24 and the yoke 82, and the yoke additionally pivotally supports the horizontal the intermediate shaft 24 is not subjected to any torsional forces during the application of the clamping load. Accordingly, the force exerted by the rotary to linear motion converter 11 will be transmitted directly to the intermediate elements 24, wherein the support 30 is not in the load-gripping path.

Both nuts 72, 74 have a flat, rear abutment surface 84 that is associated with a flat, machined. a vertical abutment surface 86 which is defined on the rear wall 88 of the transmission housing 90. Upon withdrawal of the mold holding mechanism 16, the rear abutment surface of the nuts 72, 74 separates within a predetermined distance, clearance from the vertical abutment surface 86 which is defined on the wall. The lead screw 70 satisfies the strength requirement that during the insertion of the mold holding mechanisms 16 up to the gripping contact of the opposite mold halves when the desired load is applied to them, the grip nut 84 needs to be brought into contact with the rear wall support surface 86. The lead screw housing 90 has the necessary strength to ensure that this load can be applied and that the removable top portion 98 can be adjusted before mounting in place to adjust the desired clearance between the nut bearing surfaces and the wall bearing surface. Accordingly, the mold halves, the mold holding mechanisms, the oppositely positioned transmissions, and the housing 90 define a truss made of triangular structures that is supported above the upper surface of the sectional frame to prevent both vertical deflection, the truss will thus protect the support shafts from a downward load as well as a separation of the mold halves sideways in a horizontal direction due to vertical loads applied during the molding process. In order to ensure lubrication of the bearing surfaces 84, 66, an oil groove 100 may be formed in the rear wall surface 86, and oil may be introduced into the groove through suitable conduit passages in the lead screw housing 90. In order to minimize friction, the machined surface may be impregnated with a solid lubricant. To provide greater strength, the lead screw housing 90 of FIG. 6 can be doubled. to carry additional guide screws that will be attached to the rotary transducers 18 for the linear movement of adjacent sections.

Each intermediate member 24 of FIG. 7 comprises a first portion 26 which rotates about a vertical rotary shaft 27 and which carries one of the mold halves and a second portion 28 which carries the other two mold halves and which is connected via a pivot 29 to the first portion. 26 in such a position as to ensure that the effect of the forces on each mold is evenly distributed. The pivot shaft 27 slides downwardly through the first portion 26 of the upper intermediate link 24, through the upper wall 30A of the carrier 30, through the transmission yoke 82, through the lower wall 30B of the carrier 30, and finally through the first portion 26 of the lower intermediate link 24. downwardly through the upper intermediate member 24 through the carrier 30 and through the lower intermediate member 24 have a predetermined clearance relative to said intermediate member portions to define the desired movement of their first portion 26 and second portion 28.

The mold holding mechanisms 6 are, as will now be explained, designed for sliding movement on two parallel shafts 40, 50. The carrier 30, whose position is parallel to the clamping plane, has an outer one at one end, some distance from the mechanisms 6 8, the mounting flange 32 is secured by suitable fastening means 34 to a block 35 having a corresponding slot 38 for accommodating said flange and having a flat, horizontal, supporting surface 36 for traveling on a flat a horizontal, support surface 44 of the track defined on the shaft 40, which is a square and which. it is part of a bracket 42 attached to the section frame near its end. Alternatively, the bracket 42 could be formed as part of a housing of some other mechanism. Wipers not shown will keep the track surface clean and the lubricant can be supplied to the block so that the abutment surfaces 44 can be continuously lubricated. The inner end of the carrier 30 adjacent the neck reversing and holding mechanism is secured by suitable fastening means 34 to the L-shaped block 46. which is integral with the bearing block 48, and has a cylindrical abutment surface that slides on a corresponding cylindrical abutment surface of the shaft 50.

-7EN 300342 B6

The invert and hold mechanism 110 of the orifice of FIG. 8 is mounted on the top surface of the section box between the front station and the end station. The mechanism has a pair of opposing holders 112 that can be moved from a separate position to a shown closed position by the operation of the respective horizontally positioned pneumatic cylinders 114. These orifice holders carry oppositely the 115 orifice ring halves that close the bottom of the molds when the halves are The shape of the mouth 116 of the individual flasks and finally the bottles is determined by the closing of the mouth rings. After forming the orifice shape, the orifice holders 120 rotate 180 ° as a result of the operation of the invert and hold mechanism of the orifice actuated by the servomotor 108 to rotate the worm drive shaft (not shown) in the worm block 118 in rotation. which contains the worm gear. The cylinders 114 of the invert and hold mechanism of the annular orifices are suitably fastened between oppositely positioned vertical supports or brackets 122 and said worm gear cover. The vertical worm block 18 and the inverting brackets 122 are attached to the upper surface of the section frame.

It can be seen in FIG. 8 that the annular shaft 50 of the front mold opening and closing mechanism is disposed adjacent the inverting and holding mechanism 110 for the orifices. The circular shaft of the final mold opening and closing mechanism is in the form of a two-part circular shaft 50A, 50B. These shafts are mounted coaxially and each is mounted at one end in an inverting bracket 122 and at the other end in a vertical worm block 18, regardless of whether it is a front mold station or a final mold station, the square shaft 40 allows the carrier expanded in the same direction further away from the turning axis from the center of the section due to the rising temperature.

As shown in Figs. 9-11, the two circular shafts 50C may alternatively be mounted directly on the support 30. The free end of these shafts slidingly into the appropriate bearings 170 (Fig. 10) in the respective holes 1 71 formed in the pair of mounting blocks 172, which are structurally designed to be integral with the lead screw housing 90. Each of these mounting blocks has a pair of vertically spaced bearings 170 spaced apart by one another, into which circular shafts 50C enter from the mold holding mechanisms of adjacent sections. Each pair of circular shafts belonging to a section, one above and the other below, is positioned vertically one above the other above and below the axis of the horizontal, yoke swivel shaft 80. Because the expansion of the drive block due to the temperature increase is not as great as the thermal expansion of the carrier 30, A buffer mechanism is incorporated into the support so that regardless of whether it is a front mold station or a rear mold station, the support will expand further from the center of the reversal axis of the section due to the temperature increase. It can be seen in Fig. 11 that the bolt 174 connects the pin 176 on one side of the carrier 30, which can slide horizontally in the longitudinal pin path 177, with the outer circular shaft 50C on the other side of the carrier. The holes 178 and 179 in the carrier into which the respective shaft and bolt enter have the necessary clearance. to facilitate the sliding of the pin in the horizontal direction in its path, thereby allowing the ring shaft to maintain parallelism with another ring shaft within the temperature range of the environment.

In both the embodiment shown in Fig. 8 and the embodiment shown in Figs. 9 and 10, each support is located on a circular shaft guided between the turning axis and the center of the opening and closing mechanism of the forum, being positioned on the other side of the center of the opening mechanism. and closing the molds on the axis, which can transmit the effect of expanding the material due to the increase in heat further from the axis of the invert and hold mechanism of the circular orifices. That is, the expansion due to the heat of both the final mold station and the front mold station will proceed in the same direction. This has never been achieved before. In all prior art 1S machines, the effect of thermal extensibility on the side of the front mold station was directed towards the invert and hold mechanism of the circular orifices, while for the side of the final mold station it showed away from the invert and hold mechanism of the circular orifices. In this regard, the thermal expansion of the front station and the rear station is guided in the same direction as the orifice holder. which allows better alignment of the machine's working direction.

- 8 GB 300342 B6

Giant. 12 shows the cover structure of one of the lead screw bushings. It can be seen that the carrier is fully retracted. The cover has a front, sloping wall 52 which coincides with the top of the carrier 30 and which is attached to the rear top edge by a hinge 53. The cover also has sides 54 that are integral with the wall 52 along both edges 56 in the top. Each flank has a vertical portion 57 that covers a respective portion of the carrier in its retracted position. The flap actuator 58 in the form of a flap 58, which is attached to the leading edge of the top portion 98 by a hinge 60, rests on the opposite inwardly guided bracket 6k which is attached to the sloping front wall 52 of the cover. In the retracted position, the top edge of the cover is close to the hinge 60. When the carrier is pulled away, the top of the cover moves to a slightly sloping position and the flap and the top move appropriately to accommodate displacement.

The operation of transmissions of the mold opening and closing mechanisms located above the top wall of the sectional frame and the operation of transmissions driven by electronic motors mounted so as to be directed downwardly from the top wall of the sectional frame open the floor section of the sectional frame. frame. which is known in the known manner to these engines with pneumatic cylinders and transmissions with connecting links. The sectional frames 11A of the machine (there may be 6, 8, 10, etc.) are located on a pedestal which is delimited by a number of two-piece beds 130 which are connected to each other. Each two-piece bed has passage means. which are guided from one side to the other side of the bed following the rectangular openings 136 in the bed sides 132 separated by side wall ribs 137, for slidingly entering a number of e.g. eight in a preferred embodiment of seamless, rectangular fluid conduit 138; they pass the entire width of the machine. These pipes are used for the purpose of a small control tire. air cooling, lubrication and vacuum generation, etc. as needed. The top wall 134 has apertures 140 for the front mold station and apertures 142 for the final mold station, through which apertures 140, 142 extend through said fluid supply ducts 138 to each section box.

Sectional cables and conduits are routed below said conduits and extend upwardly through the space between the plurality of conduits and through the conduit passages 145 formed in the top wall 134 of lacquer to be connected to the individual mechanisms.

Pipes 138 which extend from one end of the machine to the other and which are connected to the respective sources are releasably attached to each of the two sectional beds by means of the clamping structure of Fig. 14, which comprises an L-beam 147 carrying all the pipes. and a clamping device 148 at the front and rear of the bed, the clamping device being attached between the 1-beam and the top wall of the bed Each clamping device has an overturning screw 149. having a tightening head 151 and which secures the pipe 138 through the respective holes Rotating the control screw in one direction presses the conduit against the side wall ribs 137 and lifts them upwardly into firm contact with the rib 143 which projects downward from the top wall 134 of the two-piece pedestal. and replace, for example, with two pipes, the clamping mechanism is released tions tightening head in the opposite direction, so that the duct freed and can be slidingly removed and replaced with multiple side by side lines it led. The pipes may be added or removed in a predetermined number depending on the requirements of the manufacturing process.

With reference to FIGS. 15 and 16 will be explained, each motor mechanism for opening and closing mold operates in a conventional manner where feedback signals are transmitted to the motion controller, which controls ^one servozesilovaěe that operate the motors. As can be seen, the motors are electronically coupled to each other. The motor / encoder number I (control) M1 / 154 monitors the desired signal from the motion controller position sequence controller 150. The feedback motion control processor 152 receives the digital feedback signal from the encoder portion of motor / encoder number 1. transmits a signal to the summation circuit 156. The summation circuit transmits to the controller 5 (t signaling processor f58) a digital signal that passes to the amplifier 160 that controls the motor / encoder number 1. processing it to the desired signal followed by sending it to the second summation circuit 161, which also receives a feedback signal from the position feedback processor 162, which receives a digital feedback signal from the engine encoder # 2 (M2 / 168) and transmits This signal is ex The signal amplifier 159 transmits a signal to the second amplifier 162. which controls the operation of motor / encoder number 2 (slave) 168.

Separation of the mold halves with complete withdrawal of the mold carriers, each in its initial position, can be predetermined and the ideal center point of the mold movement is half the distance between them. The initial step of the feed program is that the position controller 150 determines a displacement profile that will control the operation of the motors (MJ, M2). which are electronically coupled to each other to move the molds associated with these engines to an ideal center point. To confirm the completion of the transfer of the two mold carriers, a speed test of each motor is performed and, if the speed of one motor (VMI) and the speed of the other motor (VM2) equals zero, the next step in the feed program will begin. that the sequence control device establishes a velocity profile that will control the operation of the motors at very low speed (VJ - this may be any command that actuates the motors. When the actual speed of each motor equals zero, a determination is made as to whether actual end position of extruded mold carrier within acceptable error, +/- X from ideal midpoint The encoder associated with each motor provides data to determine the actual end position If mold carriers are in acceptable position, a third step can be performed of a feed program, wherein the operation of each motor generates a selected torque over a specified period of time "I 1", which can be set via a computer, which is the time when the mold halves will be clamped together. returning each mold carrier is in its 'ON' ¹ position In order to return each mold support mechanism to the initial position, as shown, each motor is operated at a low speed -VS, with a minus sign indicating rotation in the opposite direction that can be set - the arrow represents computer input during a limited period of time 12, which may also be

2? the set arrow represents the computer's input to the "bursting mold" before the mold holders are pulled to the "0" position at high VR speed. indicating an opening profile - for example, a steady acceleration section followed by a steady deceleration section ending at an initial position.

The second algorithm for controlling two servomotors is shown in Fig. ISA. In this embodiment, the motion controller has a sequence control device for each motor. Therefore, the motors are not electronically coupled to one another. As shown in Fig. 16A, each motor is controlled to simultaneously displace the respective mold holder according to a predetermined feed profile, the displacement / velocity / acceleration profile, to an ideal center position where one half of the total distance plus the selected distance resulting should hold the opposite mold holders and then stop. The fact that both mold holders have stopped is verified, whereby the error signal can be monitored and the actual position of each mold holder is determined and compared to the position of the ideal center point. If the actual position of each mold holder is within +/- X of the ideal midpoint position, the feed is acceptable. If this is not the case, an error signal will be produced. The actual center point is determined by the total distance of the path of the two mold holders divided by two, and a new ideal center point is determined. If one mold holder has traveled a longer distance than the other mold holder, a longer distance than the acceptable difference, the control will determine the extent of adjustment of the feed profile of one of the motors, which either speeds up relocation or slows relocation to reduce the difference the distance traveled by both mold holders. Then, the control device will provide the required torque to the motors and will continue the program shown in Fig. 16.

Giant. 17 illustrates a breech cap mechanism 180 mounted on the top wall 134 of the sectional frame 11A. A carrier arm 182 that carries three breech cap heads 184 (the breech cap mechanism is shown schematically because of a wide variety of specific designs) is attached to The control rod will also lift and rotate during the time it is in the highest lift section so that the lock heads can move between the raised, retracted position and the lower retracted position in which they located on top of the front molds. This associated displacement is controlled by the operation of the servomotor

188 of FIG. 18, which has a rotary outlet 190 which is connected via a coupling 192 to a bolt 194. The thread of this bolt corresponds to the thread of a nut 196 that rotates freely in the bore J98

- 10 C7. 300342 B6 formed in the cam housing 199. The roller follower 202 travels on the drum cam 204 formed on the cam housing wall 206. Vertical control bar! 86 is mounted on top of the nut. It can be seen in Fig. 17 that the cam sleeve has a pedestal 208 which is fastened by screws 209 to the top wall 134 of the section frame 11A on the axles of the lock heads coincident with the axes of the closed front molds and adjoining these axes to the top of said front molds. Upon actuation of the cam, the lock heads first lift partially above the front molds and then, as they move upward over the remainder of their transfer path, these lock heads move further away from the centers of the front molds so that the invert and hold mechanism of the circular orifices can displace the formed flasks to final forms. The lockhead mechanism may also be located at the front of the sectioning frame at each corner and, unlike the prior art lockhead mechanism, the fully raised and retracted lockhead arm may generally be located within the section space as shown in Figure 17, and may not extend into the area of the adjacent section.

The closure head of FIG. 19 has a body 248. which includes a cup-shaped portion 250 having a circular inwardly tapering sealing surface 252 that extends around its open base for contacting and sealing the corresponding surface 254 on top of the open front mold. The body 248 also includes a vertical tubular housing portion 256 that defines a cylindrical guide and support surface 258 for sliding inlet of the rod 260 of the piston member 262. The cylindrical head 264 of the piston member

2o 262 has a circular sealing surface 265. which can slide in the hole 266 of the cup-shaped portion 250. A spring 268 positioned around the vertical, tubular housing portion 256 is compressed between a flange 270 that is detachably attached to the carrier arm and also attached to the piston rod 260 and the top of the cup-shaped portion 250 to maintain the top surface of the cylindrical head 264 in contacting the adjacent surface of the cup-shaped portion when the breech head is separated from the front mold.

When the slide head moves down to the front mold as seen in Fig. 20, the actuator of Fig. 23 moves the flange 270 downwards to such an extent. when the top of the flange is at a first distance D1 from the top surface 272 of the front drum to which the cylindrical head will be lowered relative to the cup-shaped portion to define the necessary clearance X between the lower circular surface 274 of the cylindrical piston head and by the surface of the front mold where the cylindrical head has moved relative to the cup-shaped portion at a vertical distance "y". This exerts the desired compression force between the piston member and the front mold creating the necessary sealing between the abutting members. In this situation, the settling air introduced into the front mold through the central opening 276 in the piston rod will pass through a plurality of radially extending cylindrical head holes 278 into the corresponding number of vertical openings 280 and through the annular gap between the circular lower surface. 280 of the cylindrical head and the upper mold surface 272 into the final mold. Suitable apertures that describe the interior of the body with the ambient atmosphere ensure that the cylindrical head can move smoothly relative to the body. After the settling blowing has been completed and the molten glass batch has been converted into a flask, the flange is displaced until its upper portion is at a second distance D2 from the upper surface of the blank mold. As a result, the lower annular surface 281 of the cylindrical head comes into firm contact with the upper surface 272 of the blank mold and closes the blank mold. In forming the flask, by filling the inner cavity delimited by the inner mold surface and the lower surface of the cylinder head, air may escape through a number, four in a preferred embodiment, of small notches 286 formed in the lower circular surface 281 of the cylinder head of FIG. then through the radial holes 278 into the piston rod hole 276 and out through the now released holes 290 into the space between the top of the piston and the cup-shaped portion 250 and away from the relief holes 282.

If it is desired to apply the funnel mechanism 210, then this device may be mounted in another front corner. It can be seen in FIG. 24 that the design of the breech head mechanism and the funnel mechanism are the same except for the direction of the drum cam and except that the funnel carrier 212 carrying the three funnels 214 is located on the other control rod. Alike

As a breech head mechanism, the funnel mechanism may also be located in the space of its own section.

Giant. 25 shows an alternative mechanism 110 for inverting and holding an annular mouth. As can be seen, this mechanism for reversing and holding the orifices can be used in the embodiment shown in Figs. 8 and 10. The end of each orifice holder located near the worm gear housing 120 has the form of a groove fastening bracket 13 having its bayonet mount. an end 109 slidably mounted on a support bracket 117 which is attached to the inverting roller 114. The annular outer end 19 of the roller 11 (FIG. 26) slidably enters a corresponding circular groove 121 at the top of the respective outer side bracket 122A. The threaded end of the proximity switch or proximity sensor 124 is screwed into the corresponding hole 125 in the side bracket and secured by the nut 126 at a location where it detects the cylinder in its fully inverted position (the orifice holder is pulled away). The proximity switch cable 128 is routed downward in a through hole (not shown) in the side console, and the proximity switch itself is protected by a cover 129 on the console 131 that is attached to the worm block 118. another pair of proximity switches 124A is located (FIG. ). These proximity proximity switches are located under the worm gear housing 120 and each destroyed is directed to a respective cylinder of a pair of cylinders. At the end of each cylinder adjacent to the worm gear housing, a semicircular target 133 is attached which will signal the i20 signal to the respective proximity switch to move the cylinder to the worm gear housing from the position that was the first position of the circular orifice holder in which they were circular. the mouth halves carried by the orifice holder at the top of the plunger mechanism at 180 ° for the inverted initial position, to a second position 180 back from the first position in which the oral ring halves hold the flasks at the final blow station with the end position at 0 ° inversion. In this context, the terms "ring socket open" and "ring socket closed" will be used to describe the position of the ring socket / consoles / cylinder, the control functions being described with reference to one ring socket because the other ring socket is controlled by the same way. Since the servomotor 108 has an encoder that generates positional feedback, the angular position of the ring neck holder is known throughout its angular displacement range.

3 (1

The algorithm shown in FIG. 28 will identify control difficulties during inversion. The throat ring detecting sensor 124A will be continuously monitored as long as the actuator 108 moves the worm, worm gear and throat ring from the initial turning position at 180 ° to the end turning position at 0 °. If the neck ring »5 does not maintain its closed position throughout these 180 ° displacements, a warning signal will be sent. 4 This signal either stops the operating cycle or triggers the necessary intervention of a smaller range.

The algorithm shown in FIG. 29 will determine if the neck ring arrival time is constant. The throat ring cylinders will be actuated according to the specified cycle time (time "T") to move the throat ring from the closed position detected by the sensor.

124Λ on the worm block to the open position detected by sensor 124 on the side console. The time between these two signals is measured as "Δ I" and compared to the ideal time difference ie the original time difference and the time ("T") of deviation, which is the difference between the actual and ideal time interval is sent to the control device that controls operation of the throat control cylinder

4? krului. If the “T” deviation is greater or even erroneous, a signal will be sent to provide the necessary intervention, from stopping the cycle to sending a warning message to the operator notifying the need for maintenance.

Giant. 30 illustrates a reversible algorithm. The throat rings will be opened at the final station to

5d have released the finished bottles, and before the arm can rotate 180 ° to the front station, the control device must verify that the neck rings are in the open position. In connection with this verification, the reciprocating servomotor will be operated to provide the necessary angular displacement. At the selected angle of rotation (0 | ideal), the control device will control the operation of the neck ring actuator so that the neck ring moves from the open position to the closed position. Such action will be determined by certain limits which stipulate that (H must be greater than X ° and that the movement of the neck ring must be completed when Y ° is reached. The X. Y and EU values are independently adjustable. real) when the state detecting sensor 124 is in the open ring, and determines the deviation # 1 by subtracting 01 actual from the 0J. This deviation is sent to the control device, where the position in which the cylinder is to be controlled is corrected. When this deviation is excessive or even erroneous.

a warning signal is sent.

In addition, the control monitors the situation where the neck ring takes a closed position defining the actual angle Θ2 and the sensor detects the status of the neck ring closed. The cylinders are conventionally controlled by air and time. which pneumatic cylinder needs to be moved from the throat ring open to the throat ring closed position depends on the particular technical conditions of operation of the cylinder. As the power of the roller decreases, the required displacement time increases, and such a delay may cause the moving structure of the oral ring to strike the front molds which are normally out of range. The control device determines the second

01 the deviation determined by the calculation 02 ideal minus skuteč2 actual, and makes a second correction of the angle of action of the neck ring. When this drop reaches a predetermined angle. which is marginal for intervention, the control device sends an appropriate signal indicating the need for repair and / or maintenance. Because every angular displacement is a function of time for the encoder. these deviations will be related to the observed time differences. These variations ensure that the cycles will have (even times).

The plunger mechanism, which is part of the front station of the section, is shown in Figs. 31 and 32 and includes, as can be seen, three canisters provided with a plunger in the case of a machine for three batches of molten glass. Each plunger canister has an upper cylindrical portion 63 and a lower cylindrical portion 64 with pin-like projections 65 carrying O-ring seals 71 and an exhaust manifold 73 that extends axially downwardly from the lower surface 75 of the lower cylinder so as to connect the plunger canister to the necessary operational services. such as plunger cooling, gas evacuation, plunger plunging, plunger plunger, pre-pressurization / vacuum in two-blow molding machines, or plunger cooling in press and blow molding machines, lubrication, support plunger. The canister can evacuate the gases through the upper rollers and in such a case, a transfer pipe and a connected exhaust pipe will not be required. For the sake of clarity, the plunger mechanism will be described in connection with a machine performing the blow molding process twice, but in those passages where the pre-pressure / vacuum is mentioned. it should be understood that it is a cooling of the punch in the press and blow machine. Mounted on top of each upper cylinder is a mounting plate or flange 77 and a tooling 79 having opposite ears 82 for engaging opposite neck ring halves when the neck ring holders are in the closed position. These mounting plates 77 are fastened to the upper surface of the mounting block or plate 85 having suitable openings 87 of Fig. 33 through which the upper or lower rollers can pass, by means of suitable fastening means, and this mounting block is secured to the upper surface 94 A fastening diameter 69 is disposed on the upper portion of the upper cap. The upper surface of the section frame has a large opening (not shown) into which the plunger cartridges can be positioned accordingly. whether it is one, two or three batches of molten glass. In this context, the top surface 94 of the section frame is the control surface. It is appropriately machined in those places where the mounting block is attached. to create an accurate horizontal substrate. The upper surface or area or flange mounting substrate and the lower surface of the mounting block are appropriately machined to be parallel, and the height of the mounting block corresponds to the location of said tooling at the desired height. By delimiting the position of the cylindrical apertures 87 in the assembly block sufficiently precisely to align the constituent diameters of the plunger canisters, the axes of these plunger canisters will occupy the desired position upon their insertion. By placing the diamond and circle pins (not shown) on the top wall of the section frame and defining suitable holes in the lower surface of the mounting plate, the mounting plate is automatically mounted. Because the top of the plunger canister is attached to the top wall of the section frame. the effect of thermal expansion will not significantly affect the position of said tooling.

J C'Z 300342 B6

The first four fluid conduits, guided below the front mold side of the section of Fig. 34, are pneumatic plunger lowering (line 300 - about 0.31 MPa (3.1 bar)), pre-flow (line 302 - about 0.2 to 0.3 MPa) (2 to 3 bar)), vacuum (line 404), and plunger pitch (line 306 approximately 0.15 to 0.25 MPa (1.5 to 2.5 bar)), which are connected through openings in the top walls of the pipe to vertical inlets 308 in the lower surface 310 of the plunger manifold 312 through the corresponding passages 314 in the connecting plate 3 and 6. The four pneumatic operators are led through the plunger manifold into outlet ports 320 in the front face of the plunger manifold. 34 and feeds lubricating fluid through the aperture 303 in the top wall of the lubrication tube. and then continues through the passage 31I in the connection plate to the lubrication inlet 305 in the lower surface of the plunger manifold, which provides lubrication through the outlet opening 309 in the front face. The O-rings 318, which are pressed between each surface of the connector plate 316 and the outer surfaces of the conduit and the lower surface 310 of the plunger distributor base, provide effective sealing after screwing said plunger distributor base to the bottom wall of the section frame. A transverse bore 322 is formed in the plunger ro / baffle pedestal 322, into which an actuated cylinder 324 is actuated by a crank 323, which can be rotated from an open position in which pneumatic service and lubrication can pass through the apertures 325 into the exit apertures. closed position in which the passage of pneumatic operators and lubrication is closed.

Connected to the front face 321 of the plunger distributor pedestal is a junction box 330 of Fig. 35, which includes five rear inlet service ports 320A, 306A that communicate with the plunger distributor pedestal service ports 320 and 309 (Seals 326 provide sealing). The described embodiment is a machine for three batches of molten glass, which means that the front station of each section comprises three plunger canisters shown in Fig. 32, which are the inner plunger canister closest to the axis of the invert and hold mechanism of the orifice, environment plunger canister and outer plunger canister. Each individual pneumatic service input, i.e. plunger pitch, vacuum, pre-flow, plunger descent and lubricant line, is divided into three outlets in the junction box, one at a time into each plunger canister. On the left side of the forward face 332 of the junction box, for the purposes of the inner canister, the middle canister, and the outer canister, there are three outlet openings 334 for operating the plunger climb function, the vertical arrows shown "inner canister etc." indicate vertically arranged groups of holes in the front face. that pertains to a particular canister and the horizontal "canister" arrows, etc. denote the horizontal groups of apertures that pertain to a particular service function. A single plunger lead inlet aperture is associated with three exhaust ports 336 that are in communication with the exhaust and three canister inlet ports 338 that communicate with three corresponding outlet ports defined in the rear face of the junction box, not shown and communicating with corresponding inlet ports. The plunger pitch apertures 360 that are delimited in the front face 321 of the plunger manifold base of FIG. 37. The flow within each vertically arranged plurality of apertures on this left side can be controlled by a pressure adjustment device such as a regulator / valve and collecting tank , which is not shown for clarity, which will be connected either to the line 'to the canister of the plunger climb function or to the exhaust. On the right side of the front face of the junction box of FIG. 35, three service outlet openings 340 are associated with a single vacuum inlet, three pre-exhaust outlet openings 342 for the purposes of the inner, middle and outer plunger canisters. an inlet port for pre-exhaust, three canister inlet ports 344 communicating with three corresponding outlet ports located in the rear face of the junction box and communicating with corresponding pre-vacuum / underpressure inlet ports 364 defined within the front face 321 of the plunger manifold base 37, and three exhaust ports 346 that are in communication with the exhaust. In this case, the regulator operates and a valve not shown in combination with a valve which is controlled by the actuator is not shown to ensure that the inlet ports are connected to the canister either to vacuum or to the pre-exhaust or to the exhaust. On the right side of the top face 348 of the junction box of FIG. 36, three plunger service exit ports 352 are provided for the inner, middle, and outer canisters associated with a single plunger service entry port.

- 14 C7. 300342 B6 three inlet apertures 350 communicating with three corresponding outlet apertures defined in the rear face of the junction box that communicate with corresponding plunger drop inlet apertures 362 defined in the front face 321 of the plunger plinth of Figure 37, and three exhaust apertures 354 which are connected to the exhaust. The flow in each vertical hole group is controlled by a separate regulator and valve that will connect the conduit "to the canister" either to operate the plunger sink or to the exhaust. On the left side of the junction top face 348, three service exit ports 351 are provided for the inner, center, and outer canisters for operating the "support pitch that communicates with the plunger sink operator guide, three inlet openings 353" to the canister communicating with the three corresponding exit ports defined in the rear face of the junction box, which communicate with the respective inlet apertures 363 for " lead support " defined in the front face 321 of the plunger assembly, and three exhaust apertures 355 which are connected to the exhaust. The flow in each vertical group of openings is controlled by a separate regulator and valve that will connect the conduit "to the canister either to support the pitch of the support or to the exhaust. The junction box also divides the lubrication lines into three lines, i? which are connected to three lubrication inlet holes 313 on the front face of the plunger distributor base.

Referring to Fig. 37, it will be appreciated that the front face of the plunger plinth also includes a plurality of additional inlet orifices 365 for additional fluid functions such as neck collar cooling, takeout pliers closing, air cooling, mouth opening / closing etc., which are connected to corresponding ducts in the junction box, these ducts may lead to outlets in the upper surface of the junction box which are connected to respective outlet ports of a corresponding number of individual regulators and valves that distribute air from the plunger riser service line and regulate the required pressures.

The top surface 31 of the plunger distributor plate has three sets of outlet apertures each having a plunger outlet outlet opening 366, a plunger outlet outlet opening 386, a pre / vacuum outlet opening 370, a support outlet outlet opening 372, and a lubricating outlet outlet These outlet openings are universal permanent, meaning that the number of sets of outlet openings corresponds to the maximum number of batches of molten glass that are processed in a section per cycle.

In order to create a specific plunger configuration for one, two or three batches of molten glass and to define the plunger spacing at a distance from each other, e.g.

14 or 6, i.e. 15.24 cm in the case of a plurality of plungers, the transition plate 376 of FIG. 38 is attached to the upper surface 31 of the universal plunger guide plate by means of suitable screws 377. Plunger Operator Outlet Hole Plunger Operator Outlet Hole 384 Prepressure / Vacuum Output Outlet 384, Support Climb Outlet Hole 386 and Lubrication Service Outlet Port 388 in the top surface in 390 to enter downwardly projecting connection lugs 65 on the plunger canisters where Ring 71 forms a seal between the downwardly protruding projection and the respective inlet opening, any movement of the plunger canister either in the respective mounting plate opening or as part of the mounting plate will not cause the canisters to tilt, since the necessary stability is ensured by O-step seals in the inlet openings in the transition The plunger plate and the plunger exhaust aperture ¹⁵ 392 are shaped so that the respective plunger exhaust pipe 73 of the plunger canister can enter. The plunger exhaust ports communicate with the exhaust port 378.

Changing one section configuration to another, e.g., changing from the described three-batch molten glass manufacturing process to a two-molten glass batch manufacturing process, is accomplished by removing said three-molten glass transition plate and then replacing the intermediate molten glass transition plate. two batches of molten glass according to FIG. 38Λ, which sealed one of three sets of plunger outlet apertures on the top surface of the plunger plinth, forming a connection to the third set of holes. The operation of the plunger mechanism will be modified to control only the operation of the outboard valves, which are associated with two sets of holes in the transition plate.

- 15 CZ 300342 136

In order to manufacture bottles having substantial height differences, it is possible to raise the neck rings / plunger canisters by approximately 70 mm. The original transition plate having a height Π1 and the mounting plate having a thickness D1 can be replaced by the transition plate and the mounting plate? plate to increase their height up to 70 mm. 38 and D2 - FIG. 39, respectively, and the neck ring holder may be replaced by an alternative arm whose mounting bracket 11A raises the neck ring holder 112 from P1 of FIG. 25 to P2 of FIG. 39. Fixed stop 111 which defines the position of the mounting brackets shown in FIG. 40.

1 (1

It can be seen in FIGS. 4 to 43 that a machine with a given pair of oral ring holders may utilize molds having a wide range of heights to produce bottles having different heights. While half of the front molds 17A. 1713, 17C. 17D (Figs. 41 to 43) and the spacer may have different shapes; the interconnection of the front mold halves and the intermediate is defined to form a fixed i? set vertical dimension "II" between the turning center 434 and the top surface 438 of the neck ring groove 436 of the front mold half, ie, the top surface of the neck ring. In the case of the neck ring holder located in P1 of FIG. 25, this dimension could be, for example

100 mm, while this dimension could be, for example, 30 mm if the neck ring is in P2 according to Fig. 40. Each half of the front mold is near the lower surface

20 a downwardly overhanging, circular hook-shaped edge 440 which may have a plurality of circular portions or sections and which enters a corresponding upwardly directed, circularly-shaped hook 442 on the outer wall of the intermediate portion that vertically defines the position of the mold halves . The front mold is vertically disposed in a horizontal plane joining the downwardly overhanging edge of the front mold and the upwardly directed edge of the intermediate mold of the front mold support. The mold half may be sized to be sufficient to allow the stabilizer button 442 to extend vertically above the lower edge which cooperates with the upper mold half edge 440 to stabilize the mold as it moves, as shown, the stabilizer button 442 applies the weight of the mold half. . Since the mold halves are carried near the oral circular groove where the mold edge is supported by the edge on the mold support, substantially the entire effect of thermal expansion will manifest upward from that location and any effect of thermal expansion extending downwardly will be insignificant, without the need for any adjustment of the plunger mechanism or throat ring, which is usually required in the prior art structures in which the front molds are carried near the top of the molds. In addition, using conventional molds 380 of FIG. 4, which are hinged at the top by a downwardly overhanging, circularly guided edge 382 having a plurality of sections supported by a corresponding upwardly directed, circularly guided edge of the intermediate mold support not shown, which may also a certain number of sections near the neck ring groove, the expansion of the mold halves by the effect of heat also manifests itself away from the bottle neck, e.g. from the threaded portion, so that it is consistent at both stations.

It may be recalled that in the prior art it has often been required to purchase a new IS machine or to rebuild an existing machine in connection with rebuilding one configuration for one, two, three batches of molten glass, with some center distance to the same or different configuration with a different center distance. The main cause is the complicated connections for opening and closing the molds, which define different geometrical arrangements. The invented IS machine is a machine with a universal center distance. The original configuration / center distance can be changed to a different configuration / center distance required by manufacturing circumstances by simply replacing certain parts to provide the desired configuration / center distance; that is, by replacing the mold carrier assembly of the mold opening and closing mechanism, the mounting plate, the transition plate, and possibly the plunger / plunger canisters of the plunger mechanism, the parameters of the oral ring holders and mold cooling mechanism would be rapidly changed, as usual, the machine configuration would be changed.

WITH

- 16 GB 300342 B6

The takeout mechanism shown in Figs. 45 to 47 is mounted on the top surface 94 of the top frame top wall 134 and has a take-off clamp head -450 that can releasably grip the bottle or bottles at the end station and which is supported on the slide beam 452. which is in the X-axis direction and slidably mounted on the block 454. which moves in the Z-direction in the direction of one hundred? janu 456. Movement along the X-axis and the Y-axis is controlled by suitable servomotors 457. 458. The cylinders made at the final station will always be aligned, regardless of their height, so that the orifices of their necks are aligned in a predetermined vertical position. the bottoms of these bottles may be in different vertical positions ZBI. ZB2 in relation to the Z-reference plane over a specified range of vertical bottle heights. The pick-up pliers head gripping the bottles, followed by removing them from the end station and placing them on the outage 460, which may be positioned at different positions relative to the Z-Z positions. ZD2. The short bottles will travel a different distance Z i than the tall bottles - distance 72. The takeout control device of Fig. 47 determines the X Z displacement profile of the takeout clamp head for a possible "Z" deviation. ZB ZD and performs the required relocation,

Claims (7)

PATENT CLAIMS A mechanism for opening and closing molds in an IS machine comprising individual sections, characterized in that each section comprises a sectional frame (11A), a pair of oppositely positioned mold holding mechanisms (16), support means for supporting each of the mechanisms 2? (16) for holding the molds located on the upper surface (94) of the section frame (11Λ) to move the mold (16) directly between the withdrawal position in which the molds are open and the retracted position in which the molds are held by the mechanisms (16) ) for holding the molds firmly and closed, the support means forming a sectional frame (IIA) comprising a housing (90) extending upwardly from the pedestal portion (93), the first and second annular shafts (SOC) provided with bearings (170) disposed in a housing (90) that carries circular shafts (SOCs) spaced parallel to each other in a horizontal direction to slide sliding mechanisms (16) for holding the Ibrem. wherein the mold holding mechanisms (16) are mounted at the free ends of the circular shafts (SOCs) remote from the housing (90). The mechanism for opening and closing molds in an IS machine according to claim 1, characterized in that it is shaded. characterized in that the bearings (170) for supporting the first and second annular shafts (SOCs) in parallel in the horizontal direction carry the first and second annular shafts (50C) in the horizontal direction parallel at substantially the same distance from the center of the mold holding mechanisms (16). 4ii The mold opening and closing mechanism in an IS machine according to claim 2, characterized in that the bearings (170) for supporting the first and second annular shafts (SOCs) spaced parallel to each other in the horizontal direction are also relative to each other. placed vertically. 45 A mold opening and closing mechanism in an IS machine according to claim 1, characterized in that it comprises first and second annular shafts (SOCs) adapted to slide out of the support means together with a mold holding mechanism (16) attached to the molds. a first and a second annular shaft (SOC), and adapted to be replaced by other mold holding mechanisms (16) mounted on another pair of the first and a second annular shaft (SOC). A mold carrier assembly according to claim 5, characterized in that the first and second annular shafts (50C) are in a horizontal direction, substantially equidistant from the center of gravity of the mold holding mechanism (16). A mold carrier assembly mounted to a support box (90). has a pair of parallel spaced horizontally extending apertures (91) disposed on the top wall of the IS frame of the IS machine, characterized in that it comprises a mold holding mechanism (16) comprising an insertion upper and a lower intermediate member (24). ), for supporting at least one half of the mold, carrier (30) and vertical 55 a rotatable shaft (27) for mounting the insert intermediate elements (24) on the carrier (30) and the first and second - 17 GB 300342 B 6 is a parallel-mounted circular shaft (50C) fixed at one end to the support (30). extending in the horizontal direction, the first and second annular shafts (50C) having a free end spaced from the support (30) and slidably inserted into the horizontally extending openings (91) in the housing (90). The mold carrier assembly of claim 6. This is not the case. wherein the first and second circular shaft (50C) are substantially equidistant from each other in the vertical direction from the center of gravity of the mold holding mechanism (16).