CZ298986B6 - Mold opening and closing mechanism for an I.S. machine - Google Patents

Abstract

In the present invention, there is disclosed a mold opening and closing mechanism for an I.S. machine having a plurality of individual sections (11) each having a pair of opposed mold support mechanisms (16) displaceable between a separated retracted position whereat each mold support mechanism (16) is located at a start position and an advanced position whereat molds carried by the mold support mechanisms (16) will forcefully engage wherein each mold support mechanisms (16) comprises a drive system (19) including an electronhe form of a spindle (67), which is connected to a lead screw (70) via a coupling ic servo motor (66, 108, 188, 457, 458) having a rotary output in t(68). Said electronic servo motor (66, 108, 188, 457, 458) assigned to each mold support mechanism (16) for holding the molds in both open and closed positions is provided with a command position sequencer (150) for moving the mold support mechanism (16) into the center of a distance between the initial and starting positions wherein said command position sequencer (150) forms a part of a motion controller (155) adapted for electronic verification of the mold support mechanism (16) position in case of its location in the exact center between the initial positions and for controlling each electronic servo motor (66, 108, 188, 457, 458) according to a predetermined torque for a predetermined period of time.

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 to mechanisms for opening and closing molds 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. Today, more than

4,000 machines with individual sections from different manufacturers, producing more than a million bottles each day of the year.

Such an IS machine has a number of identical sections (a sectional frame in which and on which a certain number of sectional mechanisms are mounted) each having a front molding station that transforms one or more batches of molten glass delivered into flasks having a threaded hole (bottle mouth) at the bottom, and a blow station into which the flasks enter and transform into bottles standing upright with the mouth facing upwards. The invert and hold ring mechanism comprising a pair of opposed arms that rotate about the invert axis, transfer the flasks from the front molding station to the blow station, and invert the flasks from the downstream position during the manufacturing process, to the position where the bottle mouth faces upwards. The bottle made in the blow station is removed from the section by a takeout mechanism.

The front mold station comprises opposite pairs of front molds, and the final blow station includes opposite pairs of final molds. These molds are displaceable between open (separate) and closed positions. Opposite pairs of oral circular molds that are moved (carried near their tops) by the mechanism for reversing and holding the circular orifices define the bottle mouth and retain the formed flask during transfer from the front molding station to the blow station.

The front molds and the final molds of the aforementioned patent 1 843 159 are supported on inserts displaced by opposite carriers which are rotatable about a common axis of rotation in front of the molds, the front to back movement being determined by the movement of the flask from the front molding stations to the blowing stations. The linear motor, the liquid-actuated motor, controls the operation of both the preform molding mechanism and the final mold support mechanism. A linear motor for controlling the operation of the mold support mechanism is mounted at the front of the axis of rotation of the mold support mechanism and projects horizontally outwardly from the front of the section frame and a pair of link chains connects the output of the mold-side motor to the mold support mechanism. A linear motor for controlling the operation of the mold 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 coupled to an associated pair of mold carriers via transmissions that extend vertically from the bottom of the section at the front or rear a pair of mold support mechanisms as disclosed in U.S. Pat. Nos. 4,362,544 and 4,427,431. The drive linkages exert torsional forces that are undesirable to the carrier. 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 slide head mechanism must be front

The mold and funnel mechanism are 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. In these mold opening and closing mechanisms, there is nothing to block the molds in the necessary mold closing positions during flask formation, as a result of which the mold halves can be pushed apart and cause a vertical seam on the flask and hence on the finished bottle. To avoid this, the articulated connections must be designed to prevent the molds from opening in the closed position according to U.S. Pat. No. 5,019,147.

An embodiment of an IS machine described in US Patent No. 4,070,174 is called an IS machine. In this machine, which is still sold today, the pairs of the mold-holding mechanism are mounted 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 ITF machine and is described in US Patent No. 4,443,241. This machine, which has three molding stations, front, reheating and blowing or three molding "TF"] was not successful. In this machine, the motor15 for a pair of front and blow mold carriers was a vertically directed linear motor that was located just below the center of the molds. This machine also moved axial front and blow mold halves.

SUMMARY OF THE INVENTION

SUMMARY OF THE INVENTION The present invention provides a mold opening and closing mechanism in an IS machine, wherein each section comprises a pair of oppositely positioned mold holding mechanisms adapted to move linearly between a separate open position, wherein each mold holding mechanism is in the starting position and closed position. wherein the molds supported by the mold-holding mechanism are firmly pressed together, each mold-holding mechanism comprising a control system comprising an electronic servomotor with a spindle rotary output which is connected to a lead screw via a fastener and an electronic servomotor associated with each mold holding mechanism in an open and closed position is provided with a sequence of position control device to move the mold holding mechanism to the center of the distance between the initial and starting positions; the position sequence dispenser is part of a motion controller adapted to electronically verify the position of the mold-holding mechanism when positioned at a precise center between the starting positions and to control each of the electronic servomotors according to a predetermined torque during a tent period of time.

It is a further object of the invention that the means for controlling each electronic servomotor when moving the associated mold holding mechanism to a precise central position between the starting positions comprises means for stopping the displacement of each of the mold holding mechanisms when the center position is reached; motors for decelerating the speed following stopping the displacement of each of the mold holding mechanisms, and means adapted to detect stopping the displacement of each of the mold holding mechanisms.

Part of the present invention is a control device that includes a motion controller associated with each electronic motor to move the mold holding mechanism from an open position to a closed position.

The invention furthermore comprises an electronic servomotor connected to each mold holding mechanism and means for controlling the operation of the electronic servomotor, which are a position controller and a sequence control device and means for controlling the electronic servomotor according to a predetermined torque for a given period of time. wherein the mold holding mechanisms contact at an exact central position between the starting positions. An electronic motor associated with each mold-holding mechanism for moving the respective mold-holding mechanism between the open position and the closed position, and means for controlling the operation of the electronic motor, which are means for controlling each electronic motor when moving the respective holding mechanism. means for determining the difference in the distance traveled by the stopped mold-holding mechanism and means for reducing the difference in distance traveled by the pair of oppositely positioned mold-holding mechanisms. The drive means includes an electronic servomotor, means for controlling the speed of the electronic motor according to a predetermined torque for a given period of time, wherein the pair of mold holding mechanisms is in the closed position, and means for returning the mold holding mechanisms to their starting position after a period of time.

It is a further object of the invention that the mechanism of the invention comprises means for adjusting the time period and means for adjusting the torque to provide a slowed speed.

An advantage of the present invention is a mold opening and closing mechanism in which each of the opposed mold holders is driven by a separate motor, wherein each of the opposed mold holders drives a separate motor by a controlled motor control algorithm that controls the displacement of each mold half from the clamped position. place the ideal center of the mold until the mold is disconnected.

BRIEF DESCRIPTION OF THE DRAWINGS

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

Fig. 1 is a schematic drawing of an IS machine with a number of equal sections, each section having a front station and a terminal 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. 4 is a cross-sectional side view of the lead screw drive assembly shown in Fig. 3;

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 the 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 invert and hold mechanism of the circular orifice that moves the flasks from the front molds to the final molds;

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

Fig. 10 is a view similar to Fig. 6 showing a design of the transmission housing of the corresponding embodiment shown in Fig. 9;

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

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

Fig. 13 is an axonometric view showing the machine bed that carries the individual sections of the machine IS; Fig. 14 is an axonometric view of a portion of the machine bed;

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

Fig. 15A is an alternative embodiment of an electronic block diagram illustrating operation of the mold opening and closing mechanism;

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 control mechanism for opening and closing the molds;

Fig. 17 is an axonometric view of a forward mold station of a section demonstrating a breech head 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 elevational 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 an axonometric view of the cap head; and Fig. 23 is a flowchart showing the operation of the actuator of the breech mechanism.

Giant. 24 is a view similar to FIG. 17 showing the funnel arm mechanism mounted on the 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 flowchart showing a return algorithm;

Fig. 31 is an axonometric view of the plunger mechanism of the front mold 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 screed 10 led to the bottom of the plunger distributor base;

Fig. 35 is an axonometric view of the front face of the 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 axonometric view of the plunger transition plate;

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 axonometric 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;

Fig. 44 is a schematic side cross-section illustrating a front mold carried at a front mold station and a blow mold carried at a respective end station;

Fig. 45 is an axonometric view of a takeout mechanism that has been constructed according to 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, usually 6, 8, 10 or 12 sections 11. The conventional section takes the form of a box frame or section cabinet IIA of Fig. 2, which includes or supports the 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 a final station having an opening and closing mechanism 13 for controlling the final molds into which they enter. flasks, which are then transformed into bottles. In one

One, two, three or four batches of molten glass may be processed in each cycle of each section, and therefore, depending on the number of batches of molten glass being processed simultaneously in said one cycle, each machine will be appropriately referred to as a single molten glass batch machine. for two batches of molten glass, a machine for three batches of molten glass or a machine for four batches of molten glass. The takeout mechanism of FIG. 40 removes the made-up bottles from the end station and transfers them to the outage 14. A drain mechanism, not shown, subsequently transfers the made-up bottles from the outage 14 to the conveyor JT? which leads 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 of the machine or sections are directed perpendicularly to said conveyor. Side to side movement is a movement that is parallel to the conveyor guide.

Giant. 2 shows part of a section 11 of a machine for three batches of molten glass produced according to 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 IIA 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 16. Each mold-holding mechanism 16 is coupled to a control assembly means comprising a linear-to-linear rotation converter 18 mounted on top of the sectional frame IIA and driven by a control system 19 having a rotary output to move the associated mold-holding mechanism 16 in a lateral direction between a retracted, separated position and a retracted position in which the halves of the opposite pair of mold holding mechanisms 16 are firmly pressed together. The mold holding mechanisms 16 of the front mold stations are the same, but the mold holding mechanism of one station may differ in size from the mold holding mechanism of another station as a result of differences in the manufacturing process 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 17 of the blank molds or the final molds.

Referring now to Figures 3, 4 and 5, the attachment of the mold holding mechanism to the associated drive system will now be described and the means for moving the mold holding mechanism 16 between the retracted position and the retracted position will now be described. Giant. Figures 4 and 5 show only the mold holding mechanism 16 that carries the mechanism associated with a single section, while Fig. 6 shows an alternative housing that carries two mold holding mechanisms 16 when two sections adjoin each other and which will carry only one mold holding mechanism 16 when no section is connected. The control system 19 comprises a servomotor 66, with any gear and / or reversing gear, having a spindle-like rotary output 67 of Fig. 4, which is connected to a lead screw 70, for example a spherical or trapezoid, having a right-hand threaded top. 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 6 is screwed to the upper surface 94A, 94B of FIG. 6 of two adjacent section frames. If no downstream section is attached, the top wall of the section will be extended outwardly to provide a more refined base for the cabinet which further includes opposite side walls 96 that include stiffening ribs 97 and a removable top 98. The lead screw is attached to the transducer. 18 is rotational 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 transducer 18 further comprises means for connecting 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 the nut 72 and the yoke 82 have a horizontal bore 91 carrying a transverse, horizontal rotating shaft 80 to which the other ends of the lifting members 76, 78 are pivotally connected. In order to prolong the life of said members, sleeve or flange bushings are used. Stirrup

82 also has a vertical bore 92 into which the vertical rotating shaft 27 of the mechanism 16 rotatably enters

-6E mold holding. 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 a stowed and withdrawn position and that operate 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 extends through vertical holes in the carrier 30, the intermediate members 24 and 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 near the mold holding mechanism 16, with the rotary to linear motion converter 18 connecting the rotary output of the servomotor to the lead screw and the mold holding mechanism 16. is compactly positioned between the lead screw and the mold holding mechanism 16 on the upper surface of the top wall 134 of the section. The rotary to linear motion converter 18 is completely positioned above the top of the section frame and creates a load acting near the center, vertically and horizontally, of the mold holding mechanism 16. Vertically because the axis of the horizontal shaft 80 lies midway between the upper intermediate link 24 and the lower intermediate link 24, and horizontally 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, since the vertical rotary shaft 27 pivotally carries the two intermediate links 24 and the yoke 82, and the yoke additionally pivotally supports the horizontal rotary shaft 80 to the lifting members, the intermediate members 24 are not subjected to any torsional forces during the application of the clamping load. Accordingly, the force exerted by the rotary to linear motion transducer 18 will be transmitted directly to the intermediate members 24, wherein the carrier 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, vertical abutment surface 86 that 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 that 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, it will bring the nut support surfaces 84 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 section 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. To ensure lubrication of the bearing surfaces

84, 86, an oil groove 100 may be formed in the rear wall surface 86, and oil may be introduced into the groove through suitable passages in the lead screw housing 90. In order to minimize friction, the machined surface may be impregnated with a solid lubricant. In order to provide greater rigidity, the lead screw housing 90 of FIG. 6 can be doubled to carry additional lead screws that will be attached to the rotary converters 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. Rotary shaft

298986 B6 sliding downwardly through the first portion 26 of the upper spacer 24, through the top wall 30A of the carrier 30, through the transmission yoke 82, through the bottom wall 308 of the carrier 30, and finally through the first portion 26 of the lower spacer 24. extending 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 16 are, as will now be explained, designed to slide 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 16 8, the mounting flange 32. This mounting flange 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, support surface 36 for traveling on a flat a horizontal, abutment surface 44 of the track defined on the square shaft 40 which is a square and which 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 41 can be continuously lubricated. The inner end of the carrier 30 in the vicinity of the neck turning and holding mechanism is secured by suitable fastening means 34 to the 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.

The invert and hold mechanism 110 of FIG. 8 is mounted on the top surface of the section box between the front station and the end station. This mechanism has a pair of opposing holders 112 that can be moved from a separate position to a shown closed position by operation of the respective horizontally positioned pneumatic cylinders 4. 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 of the bottles is determined by the closing of the mouth rings. After forming said orifice shape, the orifice holders 120 rotate 180 ° as a result of operation of the inverting and holding mechanism of the orifices actuated by the servomotor 108 to rotate the worm drive shaft (not shown) guided in the worm block 118 in which The rollers 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 118 and the inverting bracket 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 mold opening and closing mechanism, located near the inverting and holding mechanism 110, is mounted at each end in opposing inverting brackets 122. The rotating shaft of the the opening and closing of the final molds takes the form of a two-part circular shaft 50A, 50B. These shafts are mounted coaxially and each is housed in an inverting bracket 122 at one end and a vertical worm block 118 at the other end. Regardless of whether it is a front mold station or end mold station, the square shaft 40 allows the the carrier expanded in the same direction further from the turning axis from the center of the section due to rising temperature.

9-11, alternatively, two circular shafts 50C may alternatively be mounted directly on carrier 30. The free end of these shafts slidingly into suitable bearings 170 (FIG. 10) in 50 well holes 171 formed in a 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 at the same distance above and below the axis of the horizontal, yoke 80. Because the expansion of the drive block is not as great as thermal expansion of the carrier 30, a buffer mechanism is incorporated into the carrier so that regardless of whether it is a front mold station or a rear mold station, the carrier will expand due to the temperature increase in the same direction away from the center of the turning axis of the section. It can be seen in Fig. 11 that the bolt 174 connects the pin 176 on one side of the support 30, which can slide horizontally in the longitudinal pin path 177, with the outer circular shaft 50C on the other side of the support. Holes 178 and 179 in which the respective shaft enters the bolt and the bolt have the necessary clearance to facilitate the sliding of the pin horizontally in its path and thereby allow the circular shaft to maintain parallelism with another circular shaft within the ambient temperature range.

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 mold opening and closing mechanism, being positioned on the other side of the center of the opening mechanism. and closing the molds on an axis that 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 IS machines, the effect of thermal expansion in the case of the front mold station side was directed toward the invert and hold mechanism of the circular orifices, while in the case of the side of the final mold station it manifested 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 circular orifice holder, allowing better alignment of the machine working direction.

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 that 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 flanks 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 opposite inwardly guided brackets 61 which are 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. a frame which is known to be filled with these pneumatic cylinder motors and coupling links. The sectional frames 11A of the machine (6, 8, 10, etc., may be) are located on a pedestal which is delimited by a number of two-piece beds 130 which are joined together. Each two-piece bed has passage means extending from one side to the other side of the bed following rectangular openings 136 in the bed sides 132 separated by sidewall ribs 137 for sliding entry of a number, e.g., eight, in a preferred seamless, rectangular conduit 138 conducting fluids that extend through the entire width of the machine. These pipes are used for pneumatic control, air cooling, lubrication and vacuum generation, etc. as required. 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 so that they can be connected to the individual mechanisms.

Pipes 138 that extend from one end of the machine to the other and are connected to respective sources are releasably attached to each two sectional beds by the clamping structure of Fig. 14, which includes an I-beam 147 carrying all the pipes and clamping device

148 at the front and rear of the bed, the clipping device being attached between the I-beam

-9EN 298986 B6 and the top of the bed. Each clamping device has an operating screw 149 having a tightening head 151 and which secures the conduit 138 through respective apertures 153 in the bed. Turning 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 that projects downward from the top wall 134 of the two-piece pedestal. If it is necessary to remove one of these pipes and replace them with, for example, two pipes, the clamping mechanism is released by rotating the tightening head in the opposite direction, thereby releasing the pipe to be removed and subsequently sliding it out and replacing it with several other side pipes. The pipes may be added or removed in a predetermined number depending on the requirements of the manufacturing process.

Referring to Figures 15 and 16, it will be explained that each motor of the mold opening and closing mechanism operates in a known manner where feedback signals are transmitted to a motion controller that controls servo amplifiers that control the motors. As can be seen, the motors are electronically coupled to each other. The motor / encoder I (control) M1 / 154 monitors the desired signal from the motion controller 15 of the motion controller position sequence 150. The motion feedback position processor 152 receives the digital feedback signal from the encoder portion of the motor / encoder number I, it sends a signal to the summation circuit 156. The summation circuit sends to the control signal processor 158, a digital signal that advances to the amplifier 160 that controls the motor / encoder number i. a desired signal followed by sending to the second summation circuit 161, which also receives a feedback signal from the position feedback processor 162, which receives the digital feedback signal from the encoder portion of motor / encoder number 2 (M2 / 168), and transmits the digital signal. This signal is converted by the second amplification control signaling processor 159, which sends 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 (M1, M2) electronically coupled to each other to displace the molds associated with these motors to the ideal center point. To confirm the completion of the transfer of the two mold carriers, each engine speed test is performed and, if one engine speed (VM1) and the speed of the other engine (VM2) equals zero, the next step in the feed program begins by controlling the positioning device. provides a velocity profile that will control the operation of the motors at a very low speed (Vs) - this may be any command that actuates the motors. When the actual speed of each motor equals zero again, it is determined that the actual end position of the extruded mold carrier within the acceptable error range, +/- "X" from the ideal midpoint. The encoder associated with each motor provides data to determine the actual end position. When the mold carriers are in an acceptable position, a third feeding program step can be performed wherein the operation of each engine generates a selected torque over a specified period of time "TI" that can be adjusted via a computer. This period of time is the time when the mold halves will be clamped together. After this time has elapsed, each mold carrier returns to its "0" position, or the initial position. In order to return each mold support mechanism to the initial position, as shown, each motor is operated at low speed - VS, where minus sign means rotation in the opposite direction that can be set - the arrow represents the computer input for a limited period of time T2, which can also be adjusted - the arrow represents the computer's input to "tear" the molds before the mold holders are pulled to the "0" position at high speed - VR. indicating an opening profile - for example, a steady acceleration section followed by a steady deceleration section ending at an initial position.

A second algorithm for controlling two servomotors is shown in Fig. 15A. 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,

This is the displacement / velocity / acceleration profile to the ideal center position, where one half of the total distance plus the selected distance should result in the gripping of the opposite mold holders followed by a 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 midpoint. 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 travel distance 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 determines the extent of adjustment of the feed profile of one of the engines, which either accelerates the displacement or slows the displacement to reduce the distance difference they travel. 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 shows a bolt head mechanism 180 mounted on the top wall 134 of the section frame 11A. A carrier arm 18 carrying three bolt heads 184 (the bolt mechanism is shown schematically because of a wide variety of specific designs) is attached to the vertical control rod 186. This control rod will be raised and will rotate during the time it takes is located in the uppermost lift section so that the breech heads can move between a raised, retracted position and a lower retracted position in which they will be on top of the front molds. This mating displacement is controlled by the operation of the servomotor 188 of FIG. 18 having a rotary output 190 which is connected via a coupling 192 to the bolt 194. The thread of the bolt corresponds to the thread of the nut 196 that rotates freely in the bore 198 formed in the cam sleeve 199 A roller-shaped cam follower 202 travels on the drum cam 204 formed on the cam housing wall 206. The vertical control bar 186 is mounted on the top of the attic. It can be seen in FIG. 17 that the cam sleeve has a pedestal 208 which is secured by screws 209 to the top wall 134 of the section frame 11A on the axes 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 bolt head mechanism may be located at the front of the sectional frame at each corner and, unlike the hitherto known bolt head mechanism, the fully raised and retracted bolt head arm may generally be within the section space as shown in Fig. 17 and may not extend beyond into the area of the adjacent section.

The closure head of FIG. 19 has a body 248 that includes a cup-shaped portion 250 having a circular inwardly tapered sealing surface 252 that extends around its open base for contacting and sealing a corresponding surface 254 on top of the open front mold. The body 248 also includes a vertical tubular housing portion 256 which 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 262 has a circular sealing surface 265 that can slide in the bore 266 of the portion 250 in the shape of a cup. A spring 268 positioned around the vertical tubular housing portion 256 is compressed between a flange 270 which 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 breech head is moved down to the front mold as seen in FIG. 20, the actuator of FIG. 23 moves the flange 270 downward until the top of the flange is at a first distance D1 from the top surface 272 of the front of the mold to which the cylindrical head will be lowered relative to the cup-shaped portion so as to define the necessary clearance "X" between the lower circular surface 274 of the cylindrical piston head and the upper surface of the front mold, the cylindrical head displaced relative to the cup-shaped portion vertical distance "y". This

Exerting the desired compression force between the piston member and the front mold to create the necessary sealing between the contacting, inwardly tapered surfaces 252, 254. In this situation, the settling air introduced into the front mold through the central opening 276 in the piston rod will pass through a number of radially extending cylindrical head apertures 278 into a corresponding number of vertical apertures 280 and through an annular gap between the circular lower surface 280 of the cylindrical head and the upper surface 272 of the blank mold into the final mold. Suitable apertures that connect the interior of the body to 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 top is located 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 surface of the blank mold and the lower surface of the cylinder head, air may escape through a number, four in the 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 piston top and the cup-shaped portion 250 and away from the relief holes 282.

If it is desired to use a 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. Like the breech head mechanism, the funnel mechanism can always be located in the space of its own section.

Giant. 25 shows an alternative mechanism 110 for reversing and holding circular orifices. As can be seen, the mechanism for reversing and holding the orifices can be used in the embodiment shown in Figures 8 to 10. The ends of each orifice holder located near the worm gear housing 120 have the form of a groove fastening bracket 113 having its bayonet end 109 is slidably mounted on a support bracket 117 which is attached to the inverting roller 114. The annular outer end 119 of the roller 114 (FIG. 26) slidably enters a corresponding annular 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 retracted). 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. A further pair of proximity switches 124A is located on the console 131, which is attached to the worm block 118 (Fig. 27). ). These proximity proximity switches are located under the worm gear cover

And each 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 to indicate to the respective proximity switch the displacement of the cylinder to the worm gear housing from the position that was the first position of the circular mouthpiece holder in which the circular mouth halves carried by the orifice holder at the top of the plunger mechanism at

1 80 ° for the inverted starting position, to a second position 180 ° back from the first position in which the oral circular halves hold the flasks at the final blow station, wherein the end position is at 0 ° inversion. In this context, the terms "ring neck open" and "ring neck closed" will be used to describe the position of the ring neck bracket / bracket / cylinder, and the control functions will be described with reference to one ring neck bracket because another ring neck bracket is operated in 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.

The algorithm shown in FIG. 28 will identify control difficulties during inversion. Sensor

1 24A detecting the "neck ring closed" status will be continuously monitored at all times,

- During this operation, the servomotor 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 does not maintain its closed position throughout these 180 ° displacements, a warning signal will be sent. This signal either stops the operating cycle or triggers the necessary smaller range intervention.

The algorithm shown in FIG. 29 will determine if the neck ring arrival time is constant. The throat ring cylinder will be actuated according to the determined cycle timing (time "T") to move the throat ring from the closed position detected by the sensor 124A on the worm block to the open position detected by the sensor 124 on the side console. The time between these two signals is measured as "AT" 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 and is sent to the control device. controls the operation of the neck ring control cylinder. If the “T” deviation is greater or even erroneous, a signal will be sent to provide the necessary actions, from stopping the cycle to sending a warning message to the operator indicating the need for maintenance.

Giant. 30 illustrates a reversible algorithm. The neck rings will be opened at the end station to release 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 (θ 1 ideal), the control device will control the operation of the neck ring cylinder 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 Θ1 must be greater than X ° and that the movement of the neck ring must be completed after reaching Y °. The values X, Y and -1 are independently adjustable.

The control device determines the actual angle (-1 real) when the neck ring sensor 124 is detected, and determines -1 deviation # 1 by subtracting -1 actual from -1 ideal. This deviation is sent to a control device for correcting the position in which the neck ring cylinder is in operation. If this deviation is excessive or even incorrect, a warning signal is sent.

In addition, the control monitors the situation where the neck ring takes a closed position defining the angle Θ2 actual and the sensor detects the status of the neck ring closed. The cylinders are conventionally controlled by air and the time it takes for the pneumatic cylinder to move from the neck ring open position to the neck ring closed position depends on the specific technical conditions of the cylinder operation. As the performance of the cylinder decreases, the required displacement time increases, and such a delay may cause the moving structure of the oral ring to impact the front molds that would normally be beyond its reach. The control device determines the second Θ1 deviation determined by the calculation of ideální2 ideal minus Θ2 actual, and makes a second correction of the angle of action of the neck ring. When this drop reaches a predetermined angle that is limiting for the necessary intervention, the control device sends an appropriate signal to indicate the need for repair and / or maintenance. Since each 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 still have 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 protrusions 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 descent, plunger pitch, pre / vacuum in blow molding machines or punch cooling in press and blowing machines, lubrication, support climb. The canister can evacuate gases through the upper cylinder, in which case the manifold and associated exhaust pipe will not be required. For the sake of clarity, the plunger mechanism will be described

- 13GB 298986 B6 in connection with a blow molding machine, but in those passages where the pre-pressure / vacuum is mentioned, it should be understood that it is the cooling of the punch in the press and blow machine. A mounting plate or flange 77 and a tooling 79 having opposite ears 81 for engagement with opposite neck ring halves 5 when the neck ring holders are in the closed position are fastened to the top of each upper cylinder. These mounting plates 77 are secured to the upper surface of a mounting block or plate 85 having apertures 87 of Fig. 33 through which the upper or lower cylinder can pass through suitable mounting means, and this mounting block is secured to the upper surface 94 of the sectional frame JT by The upper surface of the sectional frame has a large opening (not shown) into which the plunger cartridges can be placed, depending on 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 at those locations where the mounting block is attached to create an accurate horizontal substrate. The upper surface or area or substrate for mounting the flanges 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 defining the position of the cylindrical apertures 87 in the mounting block sufficiently precisely to align the constituent diameters of the plunger canisters, the axes of these plunger canisters will occupy the desired position upon insertion. By placing diamond and circular dowels (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. Since 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.

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 MPa to 0.25 (1.5 to 2.5 bar)). These operators are connected through openings in the top walls of the pipeline to the vertical inlets 308 in the lower surface

310 of the plunger manifold 312 through corresponding passages 314 in the connecting plate

316. These four pneumatic operators are led through the plunger distributor pedestal to outlet ports 320 in the front face of the plunger distributor pedestal. The fifth fluid line 301 is routed below the bottom wall of the front mold station of the section of FIG. 34 and supplies lubricating fluid. The lubricant passes through an aperture 303 in the top wall of the lubrication line, then continues through a passage 311 in the connection plate to the lubrication inlet 305 in the lower surface of the plunger manifold that provides lubrication through the outlet opening 309 in the front face. The O-rings 318 that 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 an effective seal upon screwing said plunger distributor base to the bottom wall of the section frame.

A transverse bore 322 is formed in the plunger distributor pedestal 322, into which a shutter cylinder 324 is actuated by a crank 323, which can be pivoted from an open position in which pneumatic operator and lubrication can pass through the apertures 325 to the exit apertures, into the 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 the three plunger canisters shown in Fig. 32, the inner plunger canister closest to the axis of the invert and hold mechanism of the orifices, the middle 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 front face 332 of the junction box, three outlet openings 334 are provided for inner canister, middle canister and outer canisters.

- 14GB 298986 B6 for operating the plunger climb function, wherein the vertical arrows "inner canister" etc. indicate vertically arranged groups of holes in the front face that belong to a specific canister, and horizontal arrows "canister", etc. indicate horizontal groups of holes that belongs to a certain function. Three exhaust ports are associated with a single plunger inlet opening

336, which are connected to the exhaust, and three "canister" inlet openings 338, which communicate with three corresponding outlet openings defined in the rear face of the junction box, not shown and communicating with the corresponding "plunger lead" inlet openings 360 defined by at the front face 321 of the plunger distributor pedestal of FIG. 37. The flow within each vertically disposed group of apertures on this left portion may be controlled by a pressure adjusting device such as a regulator / valve and a receiver tank not shown for clarity to be connected either to guide the operator 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 vacuum outlet service ports 340 are associated with a single vacuum inlet port, three pre-blow outlet ports 342 for internal, middle, and outer plunger canisters. single pre-exhaust port, three canister-inlet ports 344 communicating with three corresponding outlet ports located at the rear face of the junction box and communicating with the corresponding " pre-vacuum / vacuum " inlet ports 364 defined at the front face 321 the plunger distributor pedestal of FIG. 37, and three lockout apertures 346 that communicate with the exhaust. In this case, the regulator operates and a valve, not shown, in combination with a valve that is controlled by the actuator, is not shown to ensure that the inlet ports "to the canister" are either vacuum or pre-exhaust or exhaust. On the right side of the top face 348 of the junction box of FIG. 36, three plunger plunger service outlets 352 are associated with a single plunger plunger service inlet opening, three inlet openings 350 communicating with three corresponding outlet ports defined in the rear face of the junction box, which communicate with corresponding plunger descent inlet ports 362 defined in the front face 321 of the plunger distributor pedestal of FIG. 37, and three exhaust ports 354 communicating with 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 "support climb" operation communicating with the plunger descent operator guidance, three canister opening 353 communicating with the three corresponding canisters for inner, middle and outer canister purposes. outlet apertures delimited in the rear face of the junction box, which communicate with respective inlet support apertures 363 delimited at the front face 321 of the plunger distributor assembly, and three exhaust apertures 355 that are in communication with the exhaust. The flow in each vertical bore hole group is controlled by a separate regulator and valve that will connect the duct "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 which are connected to the three lubrication inlets 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 manifold also includes a plurality of additional inlet orifices 365 for additional fluid functions such as neck ring cooling, take-off pliers closing, air cooling, mouth opening / closing etc., which they are connected to the corresponding pipes 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 315 of the plunger manifold has three sets of outlet apertures each having a plunger outlet outlet hole 366, a plunger outlet outlet hole 386, a pre / vacuum outlet hole 370, a support outlet outlet hole 372, and a lubricating outlet hole 374. These outlet openings are universal, permanent, meaning that the number of outlet openings sets corresponds to the maximum number of molten glass batches that are processed in a section during a single cycle.

-15GB 298986 B6

To create a specific plunger configuration for one, two or three batches of molten glass and to define the plunger spacing at a certain distance from one another, for example 5.5 ", ie 14 cm or 6", ie 15.24 cm for 38, the transition plate 376 of FIG. 38 is attached to the upper surface 315 of the universal plunger guide plate by means of suitable screws 377. The transition plate has a plunger operator outlet port 380, a plunger operator outlet port 384, a pre-exhaust outlet port 384 for each canister. / vacuum, exit pitch 386 and lubrication service exit port 388 in the upper surface 390 to enter the downwardly projecting coupling lugs 65 on the plunger canisters, where the O-ring 21 forms a seal between the downwardly projecting lug and the respective inlet port - any movement of the plunger canister either in the appropriate opening the mounting plate or as part of the mounting plate will not cause the canisters to tilt because the required stability is ensured by O-ring seals in the inlet openings in the transition plate and the plunger exhaust port 392 is shaped so that the respective plunger exhaust tube can enter.

73 of the plunger canister. 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 of FIG. 38A, which sealed one of three sets of plunger outlet apertures on the top surface of the plunger distributor pedestal, forming a connection to the third set of apertures. The operation of the plunger mechanism will be modified to control only the operation of valves, etc. that are associated with two sets of holes in the transition plate.

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 H1 and a mounting plate having a thickness D1 can be replaced by a transition plate and a mounting plate so as 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 113A 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 is shown in Fig. 40.

It can be seen in Figures 41 to 43 that a machine with a given pair of oral ring holders can utilize molds having a wide range of heights to produce bottles having different heights. While the front mold halves 17A, 17B, 17C, 17D (Figures 41 to 43) and the spacer may have different shapes, the interconnection of the front mold halves and the spacer is defined to form a fixed vertical dimension "H" between the center 434 of invert and upper the neck surface 438 of the neck groove 436 of the front mold half i.e. the top surface of the neck ring. In the case of the neck ring holder located in Pl. 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. a circularly guided hook-shaped edge 440, which may have a plurality of circular portions or sections, and which enters a corresponding upwardly directed, circularly-guided hook-shaped edge 442 on the outer wall of the intermediate member that vertically defines the position of the mold halves. The front mold is vertically positioned in a horizontal plane joining the downwardly overhanging edge of the front mold and the upwardly directed edge of the intermediate support of the front mold. The mold half may be of a size sufficient to allow the stabilizing button 442 to extend vertically above the lower edge that cooperates with the upper mold half 440 to stabilize the mold as it moves. As shown, the stabilizing button 442 does not support the weight of half the mold. Since the mold halves are supported 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 be upward from that location and any effect of thermal expansion extending downwards will be insignificant, without the need for any adjustment of the plunger mechanism or throat ring that is typically required in the prior art structures in which the front molds are supported 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 have some the number of sections near the neck ring groove, the expansion of the mold halves under 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 rebuild an existing machine in connection with the rebuilding of 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 mold opening and closing connections that define the 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 that will 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 cans 20 of the plunger mechanism, the parameters of the oral ring holders and mold cooling mechanism would be rapidly changed even at the end station and , the machine configuration would be changed.

The takeout mechanism shown in Figures 45 to 47 is mounted on the top surface 94 of the top frame section wall 134 and has a takeout clamp head 450 that can releasably grip the bottle or bottles at the end station and which is supported on the sliding beam 452. The X-axis and Y-axis are controlled by suitable servomotors 457, 458. The cylinders made at the end station will always be aligned in any way regardless of their height. so that the bottoms of these bottles may be located in different vertical positions ZB1, ZB2 with respect to the Z-reference plane over a specified range of vertical heights of the bottles. The pick-up pliers head gripping the bottles, followed by removing them from the end station and placing them on the outage 460, which can be positioned in different positions relative to positions P, ZDI, ZD2. Short bottles will have a different distance Z1 than the tall bottles - distance Z2. The takeout control device of Fig. 47 determines the X-Z displacement profile of the take-off clamp head for possible Z-deviation, ZB ZD, and performs the desired displacement.

Claims (8)

PATENT CLAIMS 45 1. A mechanism for opening and closing molds in an IS machine, characterized in that each section (11) comprises a pair of oppositely positioned mold holding mechanisms (16) adapted for linear displacement between a separate open position, wherein each mechanism ( 16) for holding the molds in the starting position, and a closed position in which the molds carried by the mold holding mechanism (16) are firmly pressed together, each mechanism (16) The mold holding device 50 comprises a control system (19) comprising an electronic servomotor (66, 108, 188, 457, 458) with a spindle-like rotary output (67) which is connected to the lead screw (70) by means of fasteners (68). 1), and the electronic servomotor (66, 108, 188, 457, 458) associated with each mold holding mechanism (16) in the open and closed positions is provided with a sequence control device (150) for displacing the mechanism (16) for 55 holding the molds to the center of the distance between the starting and starting positions, the control device - 17GB 298986 B6 (150) the sequence of parts is part of a motion controller (155) adapted to electronically verify the position of the mold holding mechanism (16) when positioned precisely between the starting positions and controlling each of the electronic servomotors (66, 108, 188) , 457, 458) according to a predetermined torque during a predetermined period of time. The mold opening and closing mechanism in an IS machine according to claim 1, characterized in that the means for controlling each electronic servomotor (66, 108, 188, 457, 458) as the associated mold holding mechanism (16) is moved to the exact center the positions between the starting positions comprise means for stopping the displacement of each of the mold holding mechanisms (16) after reaching the center position, means for controlling each of the electronic motors (66, 108, 188, 457, 458) to slow down the speed following stopping the displacement of each a mold holding mechanism (16), and means adapted to detect a stoppage of displacement of each of the mold holding mechanisms. 15 Dec The mold opening and closing mechanism in an IS machine according to claim 1, characterized in that the control device (150) comprises a motion controller (155) associated with each electronic motor (66, 108, 188, 457, 458) to move the mechanism (16) for holding the molds from the open position to the closed position. 20 May A mechanism for opening and closing molds in an individual section of an IS machine, characterized in that it comprises an electronic servomotor (66, 108, 188, 457, 458) connected in each case to each mold holding mechanism (16) and means for controlling the operation of the electronic a servomotor (66, 108, 188, 457, 458), which are a position controller (155) and a sequence control device (150), and means for controlling the electronic servomotor (66, 108, 188, 25, 457, 458) according to a predetermined torque for a given period of time when the mold holding mechanisms (16) contact at an exact central position between the starting positions. A mold opening and closing mechanism in an individual section of an IS machine according to claim 4, characterized in that it comprises an electronic motor associated with each mold holding mechanism (16) for moving the respective mold holding mechanism (16) between the open position. and a closed position and means for controlling the operation of the electronic motor, which are means for controlling each electronic motor when the respective mold holding mechanism (16) is moved to a central position, means for determining the difference in distance traveled by the mold holding mechanism (16) traveled. , and means for reducing the difference in distance that the pair of opposing mold holding mechanisms (16) undergoes. A mechanism for opening and closing molds in an individual section of an IS machine according to claim 4, characterized in that it always comprises driving means, which comprises an electronic 40 servomotor (66, 108, 188, 457, 458), means for controlling the speed of the electronic servomotor (66, 108, 188, 457, 458) according to a predetermined torque for a given period of time, when the pair of mold holding mechanisms (16) is in the closed position, and means for returning the mold holding mechanisms (16) to the starting position after a given period of time. 45 The mechanism for opening and closing molds in an IS machine according to claim 1, further comprising means for adjusting the time period. The mold opening and closing mechanism in an IS machine according to claim 1, further comprising torque adjusting means to provide a retarded state. 50 speed.