DD142035A5 - ELECTRONIC CONTROL SYSTEM FOR A SPECIFIC SECTION OF A GLASS FORMING MACHINE - Google Patents

Abstract

The object and the object of the invention are to provide an electronic control system of the above type which provides the timing pulses necessary for safe operation of a glass forming machine and contributes to increasing the efficiency and accuracy of glass forming machines. The control device according to the invention includes means for storing a control program defining the series of predetermined forming steps and for storing section timing data for the forming steps of each individual section; a plurality of section control devices for each of the individual sections for generating the control signals for the glass forming apparatus in accordance with the control program and the section control data and

Description

211 048

Electronic control system for a specific section of a

Glass forming; machine ₌ , ____ '

Field of application of the invention

The present invention relates to an electronic control system for a particular section of a glass forming machine.

Characteristic of the known technical solutions -

The single-section glass forming machine or IS-glass forming machine is well known and consists of a plurality of sections each provided with a device for forming glass articles in a timed set sequence of steps. In the typical pail, the sections are fed from a single glass flux source, which forms glass flux bodies which are distributed in an ordered sequence to the individual sections. The sections are operated synchronously with a relative phase difference, so that one section receives a glass flux body, while another section emits a finished glass product on a conveyor and one or more sections of different intermediate F _o ~ rmungs steps execute "

The forming devices in each section are typically actuated by pneumatic motors or force switches

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In earlier machines, the pneumatic motors are controlled by a valve block, which in turn is controlled by a control drum for each section driven by a transmission shaft which synchronizes all parts of the machine. One of the limitations of the timing drum was the difficulty of adjusting the timing during the Work of the Machine Set "One solution to this problem is to replace all control drums with an electronic control system." The electronic control system includes a main unit that responds to a clock and a return pulse generator driven by the transmission shaft. "The main unit generates Reset pulses for a single control circuit for each of the individual sections to synchronize the work of the respective circuits ₀ Each individual circuit includes a pulse counter which is responsive to the clock pulses and the reset pulses generated by the main unit For each individual circuit, there are forty-eight three-decade group selector switches for adjusting the degrees of rotation of the machine. In this way, each special puncture of the cycle of the glass assembly is controlled by one of the switches in US Pat. No. 3,762,907.

The above-described electronic control system operates with various components in the counting and gate circuits. In a later developed control apparatus, a digital computer with a memory and associated program memory is used. This control circuit not only enables the automatic change of the timing values of the punctures without manual resetting of the switches. but it also provides the ability to program events, groups of interrelated punctures in

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The calculator generates control signals through an interface circuit to actuate solenoid controlled valve blocks. Such a control system is described in US Pat. No. 3,905,793.

Object of the invention

It is an object of the present invention to increase the effectiveness and accuracy of single section glass forming machines and to facilitate task to task conversion in a glass forming machine having individual sections. "

• Presentation of the essence of the invention

The invention has for its object to provide an electronic control system for a particular section of a Glasformungs «machine that provides the necessary for safe operation of the glass forming machine timing pulses»

This object is achieved in that the control device is composed as follows:

- a device for storing a control program, which defines the series of the defined Pormungsschritte, and for storing section page control data for the formation steps * * each section;

a plurality of section control devices for each of the individual sections for generating the control signals for the glass molding apparatus in accordance with the control program and the section timing data; and

~ A machine monitoring control device between the storage device and each of the Sektionssteuervorricn- *

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is switched to enter the control program and the section tent control data into the section control device and to read the current value of the section timing data from the section control device at fixed intervals and to store the section's current timing data into the memory device. * The memory device includes a pop-up disk for storing the section Control Program and Section Timing Data "The machine monitoring controller and each of the section controllers are digital computers"

Each of the section control devices stores the current values of the section timing data for the individual glass forming section controlled by the section control device, the machine monitoring control device generating command signals for each of the section control devices at predetermined intervals, and each of the section control devices of the current section timing data for the aforementioned machine monitoring control device in response to the section control generates said command signals *

The specified time intervals are separated by about five minutes ·

The controller includes power generation for at least one of the section controllers, wherein the machine monitor controller is responsive to restoration of power after a power supply failure to input the control program and current section timing data to the section controller.

To the glass forming machine includes a device for generating a chain of timing pulses with a

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Frequency proportional to the speed of formation of the glass products such that a predetermined number of the timing pulses represent a glass forming cycle of the machine, and wherein each of the section controllers is responsive to the chain of timing pulses to compose a total count of the timing pulses representing the instantaneous position of the individual represents section in the machine cycle "the Sektionssteueryorrichtung allows the total count of Z _e itsteuerimpulse with the timing data for the next molding step in the series and generates a control signal when the total count of the timing pulses in conformity with the timing data.

The timing pulse generating device provides a reset pulse after the predetermined number of timing pulses have been generated. Each of the section control devices responsive to the reset pulse to match the total count of Z _e itSteuerimpulse and the machine cycle with the Erzeugung.des reset pulse to synchroni * Sieren ·.

Each of the section control devices is responsive to the generation of said reset pulse outside a predetermined range of the total count of the timing pulses with the cessation of the generation of the control signals and to the ghost reception of a predetermined number of the reset pulses with the cessation of the generation of the control signals. The "control device includes a source of AC power for the control device, wherein each of the section controllers responsive to the frequency of the power source to periodically check the total count of the timing pulses and to stop the generation of the control signals when the total number of Z itsteuerimpulse _e via

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a fixed number of checks has not been changed. Each of the section control devices subtracts a different, fixed offset count from the total count of the timing pulses to obtain the count representing the instantaneous position of the respective section in the glass forming cycle the section control device compares the current position count with the timing data for the next Pormungsschritt in the series to generate a control signal to each of the section control devices includes a device for changing the values of each of the section timing data "The control device consists of a machine monitoring. The machine monitoring control unit compares the total count of the timing pulses with a stored reject synchronization value which represents the position in the machine cycle, with the output of the timing pulse in the machine cycle. If the total count of the timing pulses and the reject synchronization value coincide, then the glass product is to be discarded and the reject signal for the reject device is generated. The controller is comprised of a plurality of section controllers for each of the individual sections for generating the glass forming device control signals and storing a slice synchronization value for the associated single section, the machine monitor controller reading and storing the slice synchronization value at predetermined time intervals for comparison with the total count of timing pulses The machine monitor controller compares the board sync values with the

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Total count of timing pulses after each assignment of a timing pulse »

The control system is characterized by

a control program storing means which defines the set of predetermined steps and stores the timing data for these steps;

a first and second control device respectively for each first and second station for generating the control signals for the steps to be executed by the respective first and second stations in accordance with the control program and the timing data, and

- a Maschiiienüberwachungssteuervorrichtung _s connected between said memory device and each of the first and second control device to the control program and the Z _e itsteuerdaten in said first and second control apparatus input.

The control system further includes means for generating a predetermined fetch signal, wherein the first and second control means include means for changing the value of the timing data, and wherein the machine monitor control means is responsive to the predetermined fetch signal to obtain the current value of the timing data from one of the first and second Control Devices "The device for generating a fixed polling signal is a clocking machine operating at a fixed speed. The machine monitoring control device includes means for storing the retrieved current value of the tent control data.

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The memory device for the control program and the timing data include means for storing the retrieved instantaneous value of the timing data. The machine monitor controller responds to the polling signal to input the retrieved instantaneous value of the timing data into the memory device for the control program and the timing data.

The control system further includes means for generating a sustain signal and wherein the machine monitoring device is responsive to the sustain signal for replacing the timing data in the control program memory device and the timing data with the current value of the timing data.

"Embodiment

The invention will be explained in more detail with reference to an embodiment. Show:

Fig. 1 is a block diagram of a prior art single component electronic control system and associated glass forming machine with individual sections;

FIG. 2: a block diagram of a previous computer-controlled glass forming machine with individual sections;

FIG. 3 is a simplified block diagram of a single section glass forming machine and associated control system according to the present invention; FIG.

Fig. 4a is a more detailed block diagram of the control system and one of the individual sections of Fig. 3.

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Figures 5 through 10 are simplified flowcharts "representative of a portion of the programs running on the Pig's host. 4 run.

Pigures 11 through 13 are simplified flowcharts representative of a portion of the programs that are used by the computers of each section of the Pig. 4 are performed.

In the Pig. 1, there is shown a prior art glass forming machine and associated electronic control system, which is described in more detail in U.S. Patent 3,762,907. The forming machine includes a plurality of individual sections 11 numbered one through and including Ή , these sections being identical. A mechanical drive 12 is shown representative of one or more of these actuators which are operative to actuate the apparatus (not shown) for shaping glass flux bodies, distributing the bodies to the individual sections, and conveying the formed glass products away from the machine. synchronized speeds, are used. The mechanical drive 12 is mechanically coupled to a clock generator 13 having a pulse generator for generating a timing pulse for each degree of rotation of the drive shaft of the mechanical An. drive 12 and a reset pulse generator for generating a pulse for each revolution of the drive shaft of the mechanical drive.

The timing pulses and the reset pulses generated by the timer 13 are supplied to a main control unit 14. The main control unit 14 includes a main counter (not shown) for counting the time control pulses to produce a total count representing the machine's rotational position in the 36O ° machine cycle.

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unit also includes a main synchronization circuit which responds to the reset pulses to reset the main payer after 360 pulses have been counted, representing a full machine cycle. The pulses detected by the main counter are fed to a gate, the selected counting signals to a plurality of stepping control switches of the sections generated. For example, on a six section machine, the gate would gate to produce selected count signals representing 60 °, 120 °, 180 °, 240 °, and 300 ° for each step sequencer of a section. Each step sequence control switch of a section also receives the reset pulse, which is generated at 360 °, and each switch is pre-set to respond to one of the selected count signals or the reset signal to produce a reset counter signal for an associated single control unit 15.

Each individual control unit 15 includes a synchronization panel responsive to the reset counter signal generated by the corresponding sequencing control switch of the section to generate a section reset signal. A section counter counts the timing pulses generated by the clock 13 and is reset after every 360 pulses by the section reset signal. The section counter generates a count total representing the rotation position of each section in the machine cycle, with the section counter results being offset except for one against the total count of the main counter. Each section has forty-eight pressure switches connected in parallel with the section counter output. Each pressure switch generates an interference signal T _o when the total count of the section counter reaches the number to which the

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The tone signal from each pressure switch is applied to a puncture control panel, which responds by generating an output signal to actuate the winding of an electromagnet which actuates an associated valve in a valve block.

Thus, each individual section 11- has a cycle time equal to the cycle time of the machine, but the cycle times of the individual sections are evenly distributed throughout the machine cycle. The time sequence and order of functions for each individual section are set to forty-eight pushbuttons respond to a total count determined by a section counter reset by the main control unit at the end of the cycle of each individual section. The main control unit resets the section counters at fixed intervals to offset each section cycle.

The Pig "2 shows a prior art glass forming machine with the associated electronic control system, which is described in greater detail in U.S. Patent No. 4,007,028. To the molding machine includes a plurality of individual sections 16, which are numbered from one to IT, wherein the sections are identical _e A mechanical -drive 17 is representatively shown for one or more of these drives, which for actuation of a device (not shown) for forming of Glasflußkörpem _s for distributing the body of the individual sections and for forwarding the formed glass products away from the machine, all be used with fixed, synchronized speeds, _e the mechanical drive 17 is mechanically coupled to a position transducer 18 for generating an output signal representing the Position of the mechanical drive and thus the Rota

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position of the machine «. For example, the mechanical drive 17 "and the position transducer 18 may be associated with the body imaging device or the body distribution device (both not shown).

A computer 19 is programmed to provide control signals via an interface 21 to the individual sections to actuate electromagnetic valves in valve blocks (not shown). The computer 19 stores a program which determines the timing and order of execution of the various punctures in each individual section. The computer then compares the position transducer signals with the positioner for the next puncture to be performed in order to generate the corresponding control signal »A panel for the plant operator (not shown) is provided to represent the values of each of the punctures for each of the individual sections. The switchboard is also provided with a switching device for possibly replacing each of the puncturing values with another new one ^

Both of the control systems described above operate with a host or controller to determine the timing of the individual sections and the displacement between the sections. Referring now to the drawings, there is shown a block diagram of a single section glass forming machine and associated controller according to the present invention. A machine monitor or host 22 receives a chain of timing pulses from a clock 23 to set the timing of the machine cycle. The clock 23 may typically be a wave valuer or pulse generator of the type "

The machine monitoring computer 22 is provided with a plurality

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computers 24 of the individual sections, one up to and including U, connected, of the beginning, each fed with an associated a plurality of individual sections 25, one is up to and including U, the glass forming machine connected "machine monitoring computer 22 a control program _and. Timing data for controlling the associated individual section in each of the computers 24 of the individual sections *

Subsequently, each individual section computer 24 generates control signals in response to the control program and timing pulses from the clock 23 to a valve block (not shown) in the associated individual section 25 to control the glass processing cycle. The machine monitoring computer 22 periodically receives the current timing data from each of the individual section computers 24, and these data are stored for use in the next formation of that particular type of glassware or for the pail that one of the individual sections will fail for any reason .

Fig. 4 shows a more detailed block diagram of the control system and one of the individual sections of Figs. 3. The trigger 23 generates a chain of timing pulses for the machine monitor computer (MSC) 22 and the single section computer (ISC). By a pair of bi-directional lines are one Input / output device 26 and a data storage device 27 connected to the machine monitoring computer 22. The machine monitor computer 22 and the individual section computer 24 may typically be LSI-11 computers, the input / output device 26 may typically be a 1A36 DEC Writer teledrucker, and the data storage device 27 may typically be a floppy disk drive EXV 11 his*

The clock generator 23 generates a time signal for the MSC 22 and

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the ISC 24 and this signal provides a. In the typical Pail, the machine timing is expressed in degrees, and one machine cycle is 36 O in length. Also, the cycle for each individual section "is 360 °, but the cycles of all sections may be offset by a different number of degrees from the start of the machine cycle to compensate for the difference in the delivery time of the glass flux to the individual sections * The clock will generate a reset signal after 3 ^ 0 ° time pulses. which is used by MSC and ISC to define the end and beginning of consecutive machine cycles »

The MSC 22- serves to feed the control programs and the timing data from the data storage device 27 into the ISC 24. The plant operator uses the input / output device 26 to select the specific timing control data to be fed to the ISC. It should be noted that each ISC has a separate set of timing data for the particular single section it controls.

The ISC 24 generates control signals for a valve block 28 via a panel operator's dashboard, which is discussed below. Valve block 28 is connected to a plurality of glass-piercing mechanisms 29 for actuating the forming mechanisms in a predetermined sequence of steps and to produce glass products. Valves in valve block 28 are actuated by solenoids (not shown) which are controlled by signals issued by ISC 24 in accordance with the tax

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and the timing data stored in the ISC at this time. The valve block 28 and the glass forming mechanisms 29 together form the single section 25.

In the Pig. Referring now to Figure 4, there is shown a blank probe 31 which generates a signal upon plague of a glass flux body on the mold in a single section. The blank sensor 31 includes a blank detector circuit (not shown) for generating the signal to the ISC 24 »this signal is used to tune the timing of this individual section on the presence of the Glasflußkörpers, not on a position-related distribution time, as in the previous systems of Pail was. The blank sensor 31 and the blank detector circuit are the subject of a U.S. patent application.

A section control panel (SOC) 32 is connected to the ISC 24 and the valve block 28 and is used by the plant operator to make the mechanism timing settings. Actuation of a particular valve may be either advanced or delayed by the operator using the SOC 32. The SOC 32 can also be used v / ground to vary the value of the displacement of the temporal sequence of the section and to reject the synchronization value, which will be treated, the section operator console 32 may be with a display (not shown) are provided _s which allows the operator to control the current timeout value for a particular machine function.

The section control panel 32 also serves to check the operating state of the individual section

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Section is turned on, it is said to be in the "run" state, but if it is off, it is called the "safe" state ". If the section is in the safe state, the plant operator can switch to a manual mode in which the solenoids of the valve block 28 may be individually controlled by a plurality of switches (not shown) provided on the SOG 32 *

Although the start and stop controls are located on the section control panel 32, the SOC 32 is located on one side of the machine and is easily accessible to the operator when the operator is on this page present in the typical pail on the opposite side of the corresponding SOC. In this way, start and stop control are easily accessible to the operator from both sides of the machine

To a bottle firing panel 34 is a plurality of switches (not shown) each corresponding to a particular cavity of the mold in each individual section. When the operator wishes to separate a particular glass product, he actuates the corresponding switch on the passe-box panel 34. The machine monitor computer 22 periodically scans the bottle-pouring panel 34 to determine if switches have been actuated. When the MSC 22 detects an actuated switch, the MSC 22 compares the disc synchronization value corresponding to the section of the discarded glass product with the current machine position. If these two values are the same, a reject control signal is supplied to the bottle dispensing station 35 so that the corresponding bottle (s) are discarded. "

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As already discussed in connection with valve timing, the plant operator may use the section control panel 32 to vary the disc synchronization value for the single section so that a glass product is discarded from a selected cavity of the mold as it arrives at the bottle delivery station 35 , The reject synchronization value is stored in ISC 24 as a position in the machine cycle * At fixed intervals, typically every minute, the machine monitor reads the reject synchronization values from the computers of the individual sections and stores them _o every time the machine position is one degree the MSC 22 compares the new machine position with the board synchronization values and generates the

Communication between the computers of the individual sections 24 and the machine monitoring computer 22 and between the machine monitoring computer 22 and the input / output device 25 may be achieved using the series input / output interface model DLV11 (not shown). Input and output control from ISC 24 to section control panels 32 and valve block 28 and from MSC 22 to panel 34 and bottle dispensing station 35 may be achieved using the parallel input / output interface model DRV 11 (not shown). When working with a floppy disk drive as data storage 27, a floppy drive controller (not shown) RXV 11 can be used to control the data transfers between the MSC and the floppy disk drive. "

As already mentioned, the machine monitoring computer 22 and the computers of the individual sections 24 can calculate

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be of the type LSI-11. This special type of computer provides for hardware interruptions. As will be discussed, other features of this calculator are the automatic working and recording after power failure and the control of the outdoor task planning by the user.

In the pig. 5 through 9 are shown simplified flowcharts of programs employed in the operation of the machine monitoring computer MSG 22 ". As shown in FIG. 4, the MSC 22 is connected to an input / output device 26 which is a teletype writer The memory device stores on Ploppy disks both system data, such as control programs, as well as workflows, including the timing data for the molding of each type of glass product In the MSC 22, various "key program names" may be entered from the data storage device 27, these programs allowing the operator to install, change, perform or delete a workflow in memory, or to list all stored processes or to create a ( several) working to transfer (workflows) from one Ploppy disk to another; set up the machine parameters for a new task; enter a workflow from memory into the ISC 24; get an active workflow by entering from an ISC 24 in the memory; to feed an ISC 24 with a control program and timing data from another ISC 24 or with a test program; Indicate rate and machine speed and to display or change the number of cycles in which glass products are discarded.

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The main program for the machine monitor computer 22 is shown in the flow diagram of Fig. 5, D _a s program starts at a circle "START" and immediately gets to a decision point "KEYBOARD PROGRAM REQUEST" to go through possible requests, a keyboard program run by the plant operator was entered - to check. If there is such a request, the program branches to a processing point at "YES". The "RUN DESIRED KEYBOARD PROGRAM" processing point: represents a series of commands that controls the MSC 22 to execute the requested program. Then the program returns to the beginning of the main program. If no keyboard program is requested, the main program branches at the decision point at "EON" and returns to the beginning of the program. It should be noted that all keyboard programs run with the lowest urgency and through each of the programs shown in Figs be, can be interrupted.

In addition to the keyboard programs initiated with the input / output device 26, the MSC 22 is also responsible for running other programs, all of which have a higher priority than the keyboard programs. The clock interrupt routine has the highest priority and is shown in the flowchart of FIG. 6. A clock interrupt is generated each time the MSC 22 receives a timing pulse from the clock 23. If the MSC 22 is running after a keyboard program when the clock interruption is generated, the keyboard program is interrupted and the clock interruption is executed before the keyboard program continues to run. The clock interrupt program begins at the circle labeled "CLOCK BREAK" and then passes to a processing point "COMPLEMENT ITEMS" to complete the total count.

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The program then passes to a processing point "STATUS OF COMMITTEE CONTROL SWITCHES SEACTIOUSLY CHECK" to which instructions for checking the status of the reject control switches on the bottle firing panel 34 of Figure 4 are included in sections Program will then go to a decision point "POSSIBLE COMMITMENT SWITCHES" to determine if bottles have been designated for rejection If any one of the reject control switches is actuated, the program will branch to a "MACHINE = COMMIT" decision point if "YES" that the MSC 22 compares the current total count of the machine position with the reject synchronization value for each individual section, if they are equal, the program branches to "YES" at a "DESIGNATED BOTTLE (H) OUTBOUND" processing point, for which commands to generate a reject signal Flaschenausschußst for _a ti Then, the clock interrupt program returns to the main program at the point where the main program was interrupted, as it does when the program is at "HEIH" from the decision point "POSSIBLE COMMIT SWITCHES" branches if no switches have been operated, or if the program branches from the "MACHINE = COMMIT" decision point "TODAY" if the total count of the machine position is not equal to the broke synchronization value ο

The second highest priority has a reset interrupt program shown in FIG. Whenever a reset pulse is generated by the clock 23, the reset program is initiated, which starts at a circuit "Rückstellunterbr- tion". The program arrives at a processing function "MACHIHEHPOSITIOHSGESAIMTZAHLUlTG AUF 359 ZURUCICSTELLEH", with instructions for the resetting of the

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Total count of the machine position counter at the end of each machine cycle. The next Z _e itsteuerimpuls then sets the counter to Hull, and there are 359 more timing pulses counted to complete the · machine cycle · When the counter receives the last timing pulse, the reset pulse is generated again in order to correct any errors in the total count the machine position may have occurred.

As already discussed above, the plant operator can change the timing data of the section using the section control panel 32. Approximately every five minutes, the MSC 22 executes a memory program as shown in Pig "8 to update the current section time control data for each individual section stored on a floppy disk in the data storage device 27. ***" become. Thus, if the plant operator has changed the timing data for a section by advancing or delaying the actuation of a valve, that change in timing is stored in the data storage device 27 at the latest within five minutes. The computer ISI-11 is provided with a control of the scheduling of the external tasks. For example, the system operator can design the schedule _s that a program at an absolute time of day, at a delta time, starting from the synohronization of the (clock unit, or at certain multiples One time, for example, every five minutes, runs _o Thus, every five minutes, the memory program is initiated on the circuit "DATA ENGAGEMENT DEVICE BREAKING ¹ " and inputs a processing function "DETERMINE ISO TIMING DATA IN DATA CHANNEL ' ^: " stored latest timing data, the program returns to the main program.

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Referring now to Fig. 9, there is shown a rejection program executed by the machine monitoring computer at approximately every minute to complete the firing synchronization values. Consequently, if the plant operator has changed one of these values to achieve a more accurate disposal, the change is saved by the MSC, 22 at the latest after one minute. The rejection program begins at the "COMMIT SUPPRESSION INTERRUPT" circle and enters a work function "COMMIT VIEW SYNCHRONIZATION VALUE VOI ISC AND SAVE" which includes instructions to read and store the current commit synchronization values for each ISC 24. The rejection program then returns to the main program. The stored values are used in comparison with the machine position made at the decision point "MACHINE = COMMIT" (Figure 6) _e

If a power failure occurs, the contents of the power-dependent registers of the machine monitoring computer and the individual section computer are lost. Referring now to Figure 10, there is shown an execution diagram that illustrates the steps the MSC 22 takes after elimination of a power failure. If the MSC 22 is an LSI-11, it may be programmed to execute a resume program starting at the circle labeled "START". Subsequently, a processing function "RESTORE CONTROL PROGRAM AND WORK DISTANCE TO EACH ISC" restores the ISC memory with the control programs and the timing data that existed in those memories before the power failure. At this point, the resume program returns to the main program.

In the pig. 11 through 13 are shown flowcharts representative of the operation of a single section computer. The main program will be in the

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11, after the ISC memory has been restored by the MSC, the ISC 24 performs various initiation tasks for the control program, for example, setting the machine position counter to "through"

The main program starts at a circle "START" and inputs a processing function "INTERRUPTING 'EXCEPT KRAPT SETZM UID SUBMITTED CIRCUIT FROM ¹ UHEM" ₀ Then the program comes to a processing function "REVIEW SECTORY OPERATION INTERVAL ON TIME CONTROL DATA CHANGES AND SAVE POSSIBLE NEW VALUES" The commands to check the SOC 32 are to determine if the operator has entered a change in the timing data, or in the shift value of the section or in the firing synchronization value. All required changes are stored in the ISC memory to the data memory via the MSC 22 given su, when the memory program of Fig. 8 is executed by the MSC 22 _o

Then, the ISC main program inputs a "make interrupts" processing function, which includes instructions to allow the ISC 24 to respond to the timing and reset pulses generated by the clock 23. The program then comes to the decision point "COMMUNICATION REQUIREMENT BY LIISC". If the MSC 22 has requested the transmission of data to or reception of data from the ISC 24, the program branches to a "DATM TRANSMISSION OR TRIP" processing function, to which the necessary commands for communication between the Machine monitoring computer and the computers of the individual sections belong. The program then returns to the processing function "REVIEW SECTORY CONTROL PANEL TO CHANGE TIME CHANGE UL ¹ TD STORE POSSIBLE NEW VALUES" and resumes the program. Y / n the MSC

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has not requested communication, the program branches from the decision point "KOHMnriKATKMSANIORDERUETG BY MSQ" at "HEIN" to return to the processing function "SEK ~ TIONSBEDIENUNGSPULT AUP ..."

In Pig. 12, a flow chart of the clock interrupt program for the ISC 24 is shown. Each time a timing pulse is received by the clock 23 and the main program allows clock and reset interrupts, the ISC initiates a clock interrupt as the clock interrupt program has a higher priority. The interruption program starts at a circle labeled "TAKTUN TERBRE-CHUHG- *" and moves to a decision point ~ "IGNORE INTERRUPT", checking to see if there is an instruction to ignore the interruption of the clock late reset pulse that at least one clock interruption is ignored, so that the program branches at "YES" and returns to the main program · If the clock interruption can not be ignored, the program branches to "NO" and comes to a processing function "SCHNEENPOSITIONSZÄHLUNG supplement ", which includes the commands to supplement the total count, which is the P _o sition of the machine in the machine cycle. he has been dealt with above Y /, this total count is usually UuIl to 359" which is 360 degrees in a Maschinensyklus This corresponds to a revolution of the timing drum of the prior art, with Cam operates to actuate the valves, actuate the glass forming devices plural marriage, said P _o sition of the cams is defined in degrees · Then, the program comes to a processing function "SEKTIONSVERSCHIEBUITG ABZIEHElT", belonging to the commands to the displacement of the section as V / ert, as far as

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deducted from the total count of the machine position to determine the total count representing the moraine division of each section in the machine cycle, this total count being stored »

Then the program comes to a processing function CHECKING THE SECTION CONTROL PANEL CHANGE STATUS STATUS STATUS, including commands to check the status of start and stop switches on the SOC 32 and the remote control 33 to determine if the plant operator has requested a change in machine status. The program comes to a decision point "RUN" to see if the section is in the working state for forming glass products. "If the section is not working, the program branches at" NO "to a decision point" START ACTUATED "to check if any one of the start switches has been operated, which is determined by the processing function "CHECKING THE STATUS OF THE CHANGING SWITCHES OF THE SECTION CONTROL PANEL." If no start switch has been operated, the cycle interrupt program branches to "NO" at a decision point "PUSH BREAKDOWN YZIEDERHOLEI" Po As below be treated Yiird , an early reset pulse requires that at least one additional clock break occur, so that the program branches back to the "MACHINE POSITIVITY COUNTING" processing function at "YES". If the clock interruption is not repeated, the program branches to "JETSIU" to return to the main program and wait for the next timing pulse ₀ ΈβΤχΏ. If one of the start switches has been pressed, the program branches back to the "START" circle of the main program when "YES" to start the section »

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When the section is running, the program branches from "LAUS ¹ " to "YES" to a "STOP ACTIVATED" decision point to check if any of the stop buttons have been pressed, as indicated by the processing function "STATUS OF ALTERATION SWITCHES OF THE If one of the stop switches has been actuated, the program branches at "YES" to a "stop section" processing function, which includes commands for stopping the operation of the section. The cycle interrupt program then arrives at the decision point "REPEAT TAKTUIVER BRECHING"^'1 · If neither of the stop switch has been pressed, the program "U GRAD value of the next ¹ UIiKTIOIT from Table ERIvOITTELIf" branches at "HEIN" to a processing function ·, including commands for searching the degree value of the next puncture in the formation of gas products include, which are contained in a table in which the shaping functions in the order The program will then go to a decision point "POSITIOlT = GRAD" in which the instantaneous total page count of the section is compared with the degree value of the next function to be executed. If the values are not equal, the program branches at "TODAY" and arrives at a decision point "REPEAT TAKTUIITER BRECHUHG". If the values are equal, the program branches at "YES" and arrives at a Ver "- processing function" FUlTKTIOH CARRYING ^11, belonging to the commands for producing a control signal to the solenoid to operate the corresponding valve in valve block 28 then passes. to direct the program to a "TO NEXT FUITKTIOH IN THE TABLE" processing function, including commands to shift to the next function listed in the table, so that the degree of this function is determined when the processing program

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function «GRADIER! DSR NEXT PUNCTION DETERMINED FROM THE TABLE "In this way, the program will execute all punctuations that have the same degree value before returning to the main program.

Referring to Fig. 13, a reset interrupt program is shown. Each time the timer 23 generates a rollover pulse and clock and reset interrupts are possible on the Gj and main programs, the ISC initiates a reset interrupt program which is initiated on a circuit labeled "BACKUP INTERRUPT "begins. The program then passes to a processing function "AUTOSYETCHRONI-SATIOlI" to the commands are checking to see if the Rüekstelliinpuls between 359 ° and 0 ° of Sektionszyklusses done, and if that's the Pail, no further action is required ₀ If For example, if the reset pulse was in a range of, for example, 357 ° to 2 ° inclusive, instructions are executed to modify the count of the clock pulses. If the reset pulse is too early, at the next clock interrupt, the clock interrupt program will cycle as many times as necessary to complete the total count of clock pulses for the section to be synchronized again. If the reset pulse is too late, the clock interruption is ignored as often as required to obtain the total count of clock pulses for the section to be in sync again. In each of these cases, the reset interruption sprograinm then returns to the main program _e If the reset pulse is outside this range, an alarm stop is initiated. The reset interrupt has a lower urgency than the clock interrupt.

There is also a line frequency interrupt program, which is the same as the reset interrupt program of the Pig "13". In this case, an interruption by every cycle of the change

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sels.tromenergiequelle for the machine of the individual section generates "After every set number of cycles checks the line frequency interrupt program, the total count of the clock pulses to determine whether this has increased since the last review, H _a t the total count of the clock pulses at a specified number of inspections not increased, -is an alarm stop initiated ». ,

In summary, it is stated; The present invention describes a glass forming machine having a glass flow forming apparatus, a plurality of individual sections for forming glass articles, a device for feeding glass fluxes into the individual sections, glass furnishing devices in each of the individual sections for forming glass articles from a glass flow body in a row predetermined timing steps in response to a plurality of control signals and a control device for generating the control signals. The control device includes an apparatus such as a floppy disk for storing a control program defining the series of predetermined forming steps and section timing data for the forming steps of each single section; it further includes a plurality of section control devices thereto, for example, digital computers LSI-11, each of which is dedicated to the individual sections, for generating the control signals for the glass forming apparatus in accordance with the control program and the timing control data. For example, a digital computer LSI-11 connected between the memory device and each of the section control devices is provided with the section timing data and the control program

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To feed in the section control device and to read the current value of the section timing data from the section control device at predetermined times and to control the current section timing data in the memory device.

The glassfoaming machine also includes means for generating a chain of time control pulses having a frequency proportional to the speed of forming the glassware so that a predetermined number of timing pulses represent a glass forming cycle of the machine. "Each of the section controllers responds to the timing pulses. to determine a total count of the timing pulses representing the instantaneous position of the individual section in the machine cycle, the section controller comparing the total count of the timing pulses with the timing data for the next forming step in the series to produce one of a plurality of control signals when the total count of the timing pulses Time control pulses and the timing data match. The glass forming cycles of the individual sections are staggered. Each of the section controllers subtracts a different, fixed offset count from the total count of the timing pulses to determine the count representing the instantaneous position of the individual section in the engine cycle, where the. Section control device compares the momei position count to the timing data of the next step in the series ₀

The present invention also relates to a control system for a cyclically operated machine having at least a first and a second station, each responsive to control signals to operate in regular cycles, including

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identical sets of predetermined steps to work, and in which respective steps for the first and second stations are offset in time. The control device includes a device for storing a control program which defines the set of predetermined steps, and for storing timing data for the steps, first and second individual control devices respectively for the first and second stations for generating the control signals for the steps of the corresponding first and second stations are executed in accordance with the control program and the timing data. Further, there is included a mouse monitoring control device connected between the controller of each of the first and second stations and the storage device to feed the control program and the timing data into the first and second control devices.

The storage device may be the data storage device 27 having a pair of Fioppy disks. The system floppy disk stores programs for the machine monitoring control device or computer 22, the control program for the first and second control devices or the computers of the individual sections and the current one Value of Timing Data Updated Every Five Minutes »The floppy disk for the workflow stores the timing data for a variety of jobs. A designated polling or clocking device in the engine monitoring control device initiates the memory program of Pig that the current value of the timing data is read from the first and the second control device and stored in a power-dependent memory of the engine monitoring control device and the system floppy disk * The current value of the timing data can also be stored in the

Λ ϋ ° ⁴

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Workflow memory are fed to replace the timing data, which were initially stored and fed to the first and second control device, this step is in response to a maintenance signal that initiated a keyboard program of the machine monitoring control device

In accordance with the provisions of the patent law principle and mode of operation of the invention have been explained with reference to its preferred embodiments and illustrated ₀ However, it is to be understood that the invention may be practiced otherwise than illustrated and described herein without departing from its content or context.

Claims (3)

11 048 - 32 - Berlin, d.3.9.1979 54 856/13 Inven tion claim 1 "electronic control system for a particular section in a glass forming machine with a device for standardizing Glasflußkörpern a plurality of individual glass forming sections, a device for feeding 'the Glasflußkörper in the individual sections, glass forming devices in each of the individual sections for forming glass products from the Glass flux bodies in a series of fixed shaping steps in response to a plurality of control signals, and a
Control device for generating control signals, wherein the control device is characterized by - a device for storing a control program, which defines the series of the specified shaping steps and for storing section timing data for the shaping steps of each individual section; a plurality of section control devices for each of the individual sections for generating the control signals for the glass forming apparatus in accordance with the control program and the section timing data and «A machine monitoring control device connected between the memory device and each of the section control devices to input the control program and the section timing data into the section control device and to read the current section timing data from the section control device at fixed intervals, and the current section timing data to the section control device
Store memory device. 2 · control apparatus according to item 1, characterized in that ₉ to the memory device, a floppy disk for ~ 2it 048 -33- Berlin, d. 09/03/1979 54 856/13 Storing "the control program and the section timing data belongs · The control device according to item 1, characterized in that the machine monitoring control device and each of the section control devices are digital computers, The control device according to item 1, characterized in that each of the section control devices stores the current values of the section timing data for the single glass forming section controlled by the section control device, the machine monitoring control device generating command signals for each of the section control devices at predetermined intervals and each of the section control devices. generates the current section timing data for the master monitoring controller in response to the command signals. 5 "control apparatus according to item 4» characterized in that the festg-elegten Z _e itabstände about five minutes are separated from each other, The control device according to item 1, characterized by a power generation inhibiting part for at least one of the section control devices, and wherein the engine monitoring control device is responsive to restoration of the power supply after failure of the Z power supply to input the control program and the current section timing data to the section control device. Control device according to item 1, characterized in that a device belongs to the glass fan-sriimaschine ^211048-34 "Berlin, d _e 09/03/1979 54 856/13 for generating a chain of timing pulses at a frequency proportional to the speed of the shaping of the glass products, so that a predetermined number of Z _e itSteuerimpulse represents a glass forming cycle of the machine, and wherein each of the section controllers responsive to the chain of Z _e itSteuerimpulsen to a total count of Z _e itSteuerimpulse create * representing the instantaneous position of the single section in the machine cycle, wherein the section control device compares the total count of the timing pulses with the timing data for the next molding step in the series and generates one of a plurality of control signals, when the total count of the timing pulses with Z _e coincides itSteuerdaten, A control device according to item 7, characterized in that the means for generating the timing pulses generates a reset pulse after the predetermined number of timing pulses have been generated, and wherein each of the sectioning gates responds to the reset pulse to tune the total count of the timing pulses and the machine cycle with the generation to synchronize the reset pulse, 9, control device according to item 8, characterized in that each of the section control devices is responsive to the generation of the reset pulse outside a predetermined range of the total count of the timing pulses with the cessation of the generation of the control signals _a 10 _o control device according to item 8 _S, characterized in that each of the section control devices on the Uichtempfang a fixed number of the reset pulses 211 048 -35- Berlin, d.3.9.1979 * 54 856/13 with the stopping of the generation of the control signals responds. 11, control device according to item 7 »characterized by a source of AC power for the control device, each one of the section control devices being responsive to the frequency of the power source to periodically check the total count of the timing pulses and to stop the generation of the control signals when the total number of times Has not changed timing controls over a set number of checks, 12. The control device according to item 11, characterized in that the glass forming cycles of the individual sections are offset from one another and in which each of the section control devices subtracts a different, fixed offset count from the total count of the timing control pulses to obtain the count • which is the moia- tan position of the respective section in the glass forming cycle, the section controller comparing the current position count to the timing data for the next shaping step in the series to generate one of a plurality of control signals » A control device according to item 1, characterized in that each of the section control devices includes a device for changing the values of each of the section timing data, 14 * GlasformimgsrnaschinG with a device for forming Glasflußkörpern, a plurality of individual Glasfomiungssektioneii, a device for feeding the Glesflußkörper in the individual sections, glass forming 2 11 04 Θ - 36 - Berlin, d. 09/03/1979 54 856/13 Devices in each of the individual sections for shaping glass products from glass flux bodies in a series of predetermined forming steps in response to a plurality of control signals, means for generating a chain of timing pulses having a frequency proportional to the speed of forming the glass products; so that a predetermined number of said timing pulses representing a glass forming cycle of the machine, a device for separating out selected glass products in response to a reject signal and a control device for generating the control signals and the Z _u rejection signal, said control device being characterized by an engine monitoring apparatus that the chain of the timing pulses responsive to assemble a total count of the timing pulses, representing the instantaneous position of the machine in _a schin M cycle, wherein the Maschinenüberwachungssteuereinhei t die.Gesamtzählung of the timing pulses with a stored synchronization value Committee compares Vv'elcher the P _o sition is in the machine cycle, the selected glass products are to be eliminated, and generates the rejection signal for rejecting device, vierm. the total count of timing pulses and the firing synchronization value match. A control device according to item 14, characterized by a plurality of section control devices for each of the individual sections for generating the glass forming device control signals and storing a firing synchronization value for the associated single section, wherein the machine monitoring control device compares the firing synchrorisational at fixed time intervals with the total count of time control pulses reads and stores. - 37 - Berlin, d.3.9.1979. 54 856/13 16, control device according to item 15 », characterized in that the machine monitoring control device compares the reject synchronization values with the total count of the timing pulses after each assignment of a timing pulse. 17 · Control system for a cyclically operated machine with. a first and a second station, each responsive to control signals for operating in regular cycles including equal series of predetermined steps, and the corresponding steps , for the first and second stations are offset in time with each other, characterized by - a device for storing a control program, which defines the series of predetermined steps, and for storing the timing data for the steps; a first and second control device respectively for each of the first and second stations for generating the control signals for the steps to be executed by the respective first and second stations in accordance with the control program and the timing data, and a machine monitoring control device connected between the storage device and each of the first and second control devices to transfer the control program and the timing data to the first one. and second control device to enter « 18. The control system according to item 17, characterized by a device for generating a fixed call signal, wherein to the first and second control device, a device for changing the value of the timing - 38 - Berlin, d. 3.9.1979 54 856/13 data and wherein the machine monitoring control device is responsive to the predetermined polling signal to read the current value of the timing data from one of the first and second control devices. 19β Control system according to item 18, characterized in that the device for generating a fixed call signal is a clock device which operates at a fixed speed. · Control system according to item 19 », characterized in that a device for storing the retrieved current value of the timing data belongs to the machine monitoring control device« 21 «control system according to item 20, characterized in that to the storage device for the control program and the timing data, a device for storing the : retrieved current value of the time control data is heard and the machine monitoring control device is responsive to the polling signal to input the retrieved instantaneous value of the timing data into the memory device for the control program and the timing data. A control system according to item 20, characterized by a maintenance signal generating means and wherein the engine monitoring apparatus is responsive to the maintenance signal for replacing the timing data in the control program storage means and the timing data with the current value of the timing data. HierziLjLSsiten drawings