JPS5925731B2 - Timing pulse generator for glass product forming machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates generally to control systems for glassware forming machines, but more particularly to control systems for controlling individual sections of a machine in temporally ordered predetermined stages. -Related to the timing pulse generator for generating pulses.

In a glassware forming machine known as an individual section (IS) machine, each of the individual sections contains a number of means for carrying out a predetermined sequence of steps in a fixed time relationship to form a glassware. There is.

This forming means is typically powered by a pneumatic motor controlled by a valve block controlled by a rotating timing drum.

The glass is melted and formed into a mass that is directed into individual sections by a mass distribution device.

Each section of the machine produces glassware from the bulk, which is passed through a dead plate for extrusion onto a flight conveyor for removal to a glass annealing furnace for annealing and cooling or some other processing. placed on the plate).

The individual sections are operated in a predetermined order with relative phase differences to receive and remove lumps from the lump distributor in a specified order.

When one of these sections is receiving lumps from the lump dispensing device, the other of these sections
One section passes the finished glass products onto a conveyor, and other sections perform various forming stages.

Additionally, two molds may be provided in each section; the mass may serve as a blank or parison for the initial process of forming the parison.
The receiver is taken into the first mold, named mold, and then the parison is transferred to the second mold, where the second mold is used for blowing and final blowing of the product.
It is called a mold.

Each section of the machine is thus operating on two products simultaneously.

This timing drum includes a number of adjustment cams placed around the cylindrical periphery to mechanically actuate the pneumatic valves in the valve block at predetermined times.

These drums for all sections are driven synchronously with the conveyor or continuous flow of glass below the conveyor which provides a continuous flow of glass chunks into the bulk distribution device or machine.

However, it is difficult to coordinate the timing of any of the means for carrying out the shaping steps in the individual sections.

The cam member is typically mounted in an annular groove in the drum surface and secured by a nut-like ramp arrangement.

When the drum is rotating, the nut must be loosened, the cam member moved within the groove, and the nut retightened.

Such operation is undesirable because accuracy is difficult to obtain and is subject to mechanical wear resulting in altered timing.

One solution to this timing problem is U.S. Pat.
No. 62907, in which the valves of a valve block are actuated by solenoids controlled by an electronic control system.

The control system receives clock and set signals from a pair of pulse generators driven by a common drive shaft of the machine.

Another solution to this timing problem is U.S. Pat.
No. 7028, in which separate drive motors are used to drive the bulk feeder, bulk distributor, and transmission conveyor.

Each drive motor is powered by its own individual impulse and frequency control means are utilized to adjust the speed of the motor.

position transduce
r) generates signals to a computer to indicate the position of the block dispensing device and block feeder, and this computer also receives and receives signals indicating the operation of the glassware forming machine.

This computer stores information regarding the timing of the operation of the shaping elements and is responsive to a clock to generate control signals to solenoids to operate the valves of the valve block.

The present invention relates to a timing pulse generator for a glassware forming machine having a large number of individual sections capable of forming glassware from a mass of molten glass.

The mass distributor supplies these masses to each of the individual sections at a predetermined rate proportional to the speed of the mass distributor drive motor.

The speed of this drive motor is determined by the frequency of the alternating current output generated by an output such as an inverter device.

The cycle time of the individual sections and therefore of the machine is thus determined by the bulk distribution speed.

The forming steps, which are typically performed by individual section elements, divide this machine cycle into 3600 and attribute the steps to the start of the cycle in a step order that offsets each individual section by a different degree magnitude. The time is specified by this.

The timing pulse generator of the present invention is responsive to the inverter output frequency to generate a timing signal at a frequency that provides 360 pulses per machine cycle.

This timing signal frequency is obtained by dividing the inverter output frequency by the first factor M, and dividing the inverter output frequency by the M frequency signal into one of the phase locked loops (phase 1ocked 1loop).
are integrated by applying them as two inputs.

This phase-locked loop output signal frequency is divided by a factor N, and this N frequency signal divided by is applied to the other inputs of the phase-locked loop.

This phase-locked loop responds to any error between the N frequency and the M frequency by changing the output signal frequency so that the two input frequencies are equal.

This output signal frequency is therefore determined by the factor N/IVI such that by choosing appropriate values for N and M, the output signal frequency gives 360 pulses per machine cycle for any given chunk feed rate. Equal to the specified impark output frequency.

In another embodiment, an oscillator generates a frequency reference signal that is a divided frequency to generate a control signal to an inverter device to generate power to a drive motor.

This frequency reference signal is also frequency divided to generate a timing signal clock pulse concavely at 360 pulses per machine cycle.

In both embodiments, this example clock pulse is further divided in frequency to generate a reset pulse to determine the beginning and end of a continuous machine cycle.

It is an object of the present invention to improve the operation of glassware forming machines.

It is another object of the present invention to reduce the circuitry required to control individual section glassware forming machines by eliminating separate clock sources.

A block diagram of a glass article forming apparatus according to the prior art is shown in FIG.

In this apparatus, the machine control circuit controls the operation of the glassware forming means according to information based on the position of the bulk dispensing device and the bulk feeding device for each cycle of operation.

The individual section glassware forming machine 11 includes a bulk distribution device 1 which receives the bulk from a bulk feed device 13.
2. It has a number of separate sections (not shown) that receive the molten glass mass from the apparatus 12.

This lump distribution device 12 and the lump feeding device (gob)
feeder) 13 is mechanically driven by a pair of drive motors 14 and 15, but this one
The drive motor is connected to a source of variable frequency output generated by an inverter device 16.

The inverter system frequency is controlled to determine the rate at which the mass is formed and distributed to the individual sections of the IS machine 11.

Each of the individual sections is associated with a separate valve block, which valve blocks are designated by the reference numeral 17 in FIG.

Each of the valve blocks has valves connected to operate multiple glassware forming means within the associated individual section.

These valves in the valve valve 17 are actuated by solenoids, which are used for predetermined (pr.
edetermind) and is controlled by a machine control circuit 18 which times the forming steps according to the order of edetermind).

The control circuit receives information regarding the time between each step and the order of the steps from a source such as a control switch or a computer program.

A pair of position transducers 19 and 21 drive motors 15 and 14.
each of which is mechanically connected to the mass distribution device 1.
2 and the block feeder 13 respectively.

This lump feeding device 13 is a concave device for expelling a certain amount of molten glass from the forehearth of the glass furnace.

Thus, the motor 15 can drive a crank (not shown) connected to it to reciprocate a plunger (not shown) for expelling a certain amount of glass.

A quantity of glass is cut with a shear (not shown) to form a mass that enters mass dispensing device 12 .

Since the formation of lumps is related to the rotational position of the drive motor 15, a position transducer (position tran) is used.
sducer ) 21 generates a signal indicating when each of the chunks is formed.

This lump dispensing device 12 is driven by a motor 14 and distributes the lumps to the individual sections of the IS (individual section) machine in a predetermined order.

Since the distribution of any one mass is related to the rotational position of the motor 140, this position translation device 19 generates a signal indicating when a mass is distributed to the f[glJ section.

Control circuit 18 is responsive to the two position conversion signals to determine when the successive stages of each individual section are initiated in response to each of the masses formed and dispensed.

The machine control circuit 18 also receives and receives a clock signal from a signal source 22 which provides a reference for specifying times for machine cycles and series of steps.

Typically, machine timing is measured in degrees, and the size of one machine cycle is 3.

The cycles of each individual section are also 360 DEG, but the cycles of these sections are offset by a degree difference to compensate for the difference in bulk transfer times from the start of the machine cycle to each section.

A glass article forming apparatus such as that shown in FIG. 1 is fully disclosed in the previously cited U.S. Pat. No. 4,007,028.

A second block diagram of a glass product forming apparatus according to the present invention is shown in FIG.
As shown in the figure.

In the prior art device of FIG.
The conveyor motor is manually phased at the start.

The timing of the individual sections was therefore dependent on the location of the mass distributor.

In the present invention, the IS machine is considered a zero phase motor, and the conveyor motors in the bulk feeder, bulk distributor, pushout, and pushout are adjusted to be in phase.

The timing of the individual sections is thus fixed, and the force distribution device allows the section to be corrected by detecting lumps in the mold to give precise control of the machine cycles, if necessary.

It comes down to timing.

Like the apparatus of FIG. 1, the individual section glassware forming machine 31 has a number of individual sections (not shown).
These individual sections then receive gobs of molten glass from a gob feeder 33 and from a gob distributor.

The lump distributor 32 and the lump feeder 33 are mechanically driven by a pair of drive motors 34 and 35, respectively, which are connected to a source of variable frequency output generated by an inverter arrangement 36.

Each of the individual sections is associated with a valve block designated by the reference numeral 37.

Each of the valve blocks is connected to a number of individual sections of glassware forming means to operate the forming means in a specified sequence of steps at predetermined times to form glassware from the mass supplied by the mass dispensing device 32.

The valves in the valve block are actuated by solenoids, which are controlled by a mechanical control circuit 38 which is timed according to a timing clock signal generated by a timing circuit 39 and a series of predetermined sequential steps. Decide on the order.

The control circuit 38 receives information regarding the order of the steps and the particular times between the steps a) from the source of such information.

This timing circuit 39 generates a clock signal in response to the frequency of the inverter output.

Since the speed of the motors 34 and 35 is proportional to the frequency of the output generated by the inverter device, the block feeder 3
The timing of the formation of the lumps by the block distribution device 32 and the timing of the distribution of the blocks by the block distribution device 32 are synchronized with the clock signal 39.

Although the distribution of chunks to each individual section is synchronized with a clock signal, only this clock signal provides information regarding the speed of chunk distribution, in a manner similar to the clock signal generated by clock source 22 of FIG. Used as a timing reference for the sequence of steps in a machine cycle.

Since there is no position translation device as in the system of FIG. 1, this machine control circuit 38 has no information regarding the time of chunk dispensing during the cycle of the chunk feeder.

Therefore, timing circuit 39 also sends a timing clear (reset) signal to the machine control circuit to initiate a machine cycle.

The mass feeding device 33 and mass distribution device 32 can then be phased with respect to the reset signal to distribute the mass into individual sections at the required times with respect to the machine cycle.

Also shown in FIG. 2 is a lump sensor 41 which generates a signal relating to the detection of lumps in the mold of the individual section.

Lump detection circuit 42 responds to the signal from sensor 41 and sends a signal to control circuit 38, which signal is responsive to the actual presence of a lump in the individual section, rather than relative position distribution time as was done in the prior art. Used to adjust timing.

This lump sensor 41 and lump detection circuit 42 are connected to Ho
Although a US patent application was filed in the name of Peters F. Peters, the principal subject of the application was assigned to another person.

A block diagram of the timing circuit 39 of FIG. 2 is shown in FIG.

An input line 51 is connected to the output of the inverter device 36 of FIG. 2, and the timing circuit 39 responds to the frequency of the inverter output to generate a clock pulse train on output line 52 and a reset pulse on line 53. .

The inverter device having a frequency of F(IN) is an input to a frequency division circuit 54 having a frequency division factor M;
This divider circuit then generates a signal having a frequency F(IN)/M.

The output of this ÷M circuit 54 is a phase-locked circuit (phase
This is human power to the phase detection device 55 (1ocked 1oop).

Line 52 is the output from the phase-locked circuit and this circuit 56
A clock pulse train is generated with respect to frequency F(OUT).

This line 52 is connected to a second frequency divider circuit 57 with a frequency divider factor N, which circuit has a frequency F(OUU
T)/N.

The output of this ÷N circuit 57 is another input to the phase detector.

This phase detector compares two input signals, F(IN)-M and F(OUT)/N, and generates an error signal if their frequencies differ.

This error signal is filtered by a low pass filter 58 external to phase-locked circuit 56 and amplified by an error signal amplifier also internal to circuit 56 before being applied to the input of a voltage controlled oscillator internal to phase-locked circuit 56. be done.

If the F(IN)7M frequency is greater than the F(OUT)/N frequency, the voltage controlled oscillator 61 increases the F(OUT) frequency in response to this error signal.

If the F(IN)7M frequency is less than the F(OUT)/N frequency, the voltage controlled oscillator responds to this error signal by decreasing the F(OUT) frequency.

Therefore, this phase-locked circuit (phase 1ock
ed 1oop) sets the error signal to zero, F(IN)/M=
F(OUT)/N, so this closed circuit 56 remains locked at F(OUT)=N-F(IN)/M.

This clock pulse output line 52 is also connected as an input to a third frequency divider circuit 62 having a frequency divider factor 360 which generates a reset pulse on line 53.

Typically IS machine timing is based on a complete 360° cycle represented by 360 clock pulses.

The reset pulse on this line therefore determines the end and beginning of successive machine cycles.

The elements of FIG. 3 are commercially available as integrated circuits or may be constructed from discrete components according to known circuits.

For example, divider circuits 54 and 57 can be preset N-divide counting circuits CD4018A and divider circuits 6
2 can be a CD4059A programmable divide-by-N counting circuit, and circuit 56 can be a CD4046A phase-locked circuit phase 1ocked 1oop, all of which are RCA, Box 3200.

Somerville le, New Jersey 0
Manufactured by 8876.

FIG. 4 shows a block diagram of another embodiment of the circuit used to generate clock and reset signals to machine control circuitry.

A linear voltage controlled oscillator (LVO) 71 generates a frequency of 6 oscillations at which the motors of the mass distributor and mass feeder are driven.
It is used to generate the reference signal F (LVO) at 0 times the frequency.

This signal becomes an input to a frequency division circuit 72 having a frequency division factor of ten.

This ÷10 circuit 72 produces an output pulse train having a pulse width equal to approximately two cycles of the input signal.

The output of this ÷10 circuit 72 is connected to a monostable multi-vib break-73 which generates an output pulse train of pulses having a width approximately equal to the width of the pulses generated by the LVO 71.

This multi-vibration break-73 is an inverter device 74
÷ 10 circuits 7 to prevent the internal circuit elements from overheating.
2 functions to reduce the width of the generated pulse.

The output signal of this multi-bi flake is the inverter device 7
4 to generate power on line 75 at a frequency of F(IN), which power is used to drive the mass distributor and mass feeder motors.

Typically, the inverter device 74 functions as a three-phase, full-wave rectifier, where F(IN) equals the frequency of the inverter device input signal divided by six.

The mass distributor and mass feeder motors therefore receive a signal at frequency F (IN) - F (LVO)/60.

Note that a buffer circuit (not shown) is connected between the multivib break-73 and the impark device to meet the logic voltage level at the inverter device control signal voltage level.

The output of the LVO 71 is also connected to a second frequency division circuit 76 with a frequency division factor P.

The output of this ÷P circuit 76 is a monostable multi-vibration break-
77, and this multivib break cleans up the output pulse train of the ÷P circuit 76 by one (cle
an up)" function.

Another monostable multi-vibration break 78 is provided with frequency II;' (OUT) -F (LVO)/P
adjusts the width of the clock pulse generated on line 79.

These pulses are applied to a machine control circuit which utilizes the pulses as a reference for specifying times for machine cycles.

Since the multi-vib break-78 typically triggers on the trailing edge of the "1" pulse, an inverter (
(not shown) is required between multivib breaks 77 and 78.

A buffer circuit (not shown) may be connected on line 79 to function as a signal level interface.

This clock pulse line 79 is also connected as an input to a third frequency divider circuit 81 with a frequency divider factor 6.

This ÷6 circuit 81 is connected to a fourth frequency division circuit 82 having a division factor lO.

This ÷10 circuit 82 is connected to a frequency division circuit 83 having a fifth division factor of 6.

These circuits 81, 82 and 83 jointly provide F (
It serves to generate a signal to a monostable multi-vibration break at a frequency of OUT )/360.

This multivibrator 84 has the ability to clean up the output pulse train of the ÷6 circuit 83.

Another monostable multivibration break 85 is provided to adjust the pulse width of the reset pulse generated on line 86 at frequency F (OUT )/360.

As previously discussed, the IS machine timing is typically represented by 360 clock pulses.
It is based on a complete cycle of 60°.

The reset pulses on line 86 therefore define the beginning and end of successive machine cycles.

The impark device (not shown) is a multivibe break 8
Multivib breaks 84 and 8 to keep the clock pulse on line 79 and the reset pulse on line 86 in phase since 5 typically triggers with respect to the trailing edge of the ``1'' pulse.
5.

A buffer circuit (not shown) may be connected to line 86 as a signal level interface.

The elements shown in FIG. 4 are commercially available as integrated circuits or may be constructed from discrete components consistent with well-known circuits.

For example, MC14566's industrial time
The base generator (time axis generator) can simultaneously provide a 1O division counter, a 6 division counter and an internal monostable multi-break.

Therefore, one MC14566 can be used as the divider circuits 72 and 81 as well as the multivib break 77.
On the other hand, another MC14566 has divider circuits 82 and 83,
Furthermore, it can be used for multi-vibration break 84.

Divide circuit 76 may be an MC14569 programmable divide-by-N counter.

Multivibe break 73 may be a MC14538 precision monostable multivibe break, while multivibe breaks 78 and 85 may be NE555 timers connected to function as monostable multivibe breaks.

This 'MC' circuit element Motorola, Ins.
, Box 20912.

Phenix, manufactured by Arzona 85036, and the NE555 tuner manufactured by Signetics.

A table of timing values for various impark system frequencies and a number of individual sections is shown in FIG.

Normally, the inverter device output frequency is 20 to 100Hz.
(hertz).

A drive motor 35 is coupled to the mass feeder 33 through gearing and operates at a speed corresponding to 48 inverter frequency cycles for each mass formed, each mass having 6 sections. It is cut with a shear in the IS machine.

The number of cuts per minute is therefore determined by multiplying the inverter frequency in Hertz by 60 seconds/minute and then dividing this by 48 cycles/cut.

The table in FIG. 5 shows the impark frequency values.

The IS machine mechanical cycle, i.e. rotation speed 7 minutes cuts/m
It is determined by dividing the value of 1nute (7 cuts) by the number of individual sections, in this example by 6.

The gearing for the bulk feeder can be varied to accommodate the differential number of sections to maintain the same 7 rpm value for the selected inverter frequency.

As shown in the table, the 8 section machine is 36. cycle/
Geared for cutting, the 10 section machine is 28.
Linked to 8 cycles/cut.

To further explain the table of FIG. 5, the numbers in the first row are expressed in hertz and correspond to the output frequency of the LVO of 71 in FIG.

Thus, the number 1200.1440.2880.576
0 and 6000 are the selected output frequencies of 71 in FIG.

The next line also represents the frequency in hertz, line 5 in Figure 3.
1 input frequency or inverter drive 36 in FIG.
It's about the output.

The next three lines indicate that the molding machine 31 is 6.8 or 1, respectively.
Motor 35 in case of having 0 independent sections
The timing interval or pulse to the feeder 33 is driven by one.

In other words, the molding machine 31 in FIG.
It may be from the 0 section.

The mass feeder 33 must deliver 6.8 or 10 mass to the machine during a certain timing interval, depending on the number of forming sections making up the machine, via the distribution means.

For example, the description of the number of cuts at 7 minutes is the number of hertz obtained by dividing the timing from the inverter by 48.

That is, 48 is the gearing for driving the 6-section machine.

If the machine is 8 sections, the feeder 1 drive will be 36 for each cut, i.e.
Geared as a timing cycle.

The output frequency of circuit 39 of FIG. 3 must correspond to 360 pulses per machine cycle, or revolution.

Where the number of revolutions is 7 minutes, the cycle may be 7 minutes.

The numbers in this row are derived by taking the value of the number of cuts, 7, and dividing by the number of corresponding sections.

The last row shows the output frequency corresponding to various levels of input frequency to satisfy the requirement that the clock pulses of FIG. 4 be equal to 360 pulses per machine cycle.

In short, the first thing to consider is that the numbers shown in the center of the table for a 68 or 10 section machine are based on a different gear 1 drive to obtain the respective number of 7 cuts. That's true.

The frequency of the output signal from timing circuit 39 of FIG. 3 must correspond to 360 pulses per machine cycle, or 360 pulses per revolution.

Rotations per minute (t) at an inverter frequency of 24 Hz
urns/mlnute) is 5, thus requiring a total of 5×360 (11i!ill) pulses per minute, which corresponds to a frequency of 30 Hz.

The value of N7M is 1.25. Therefore, in the block diagram of FIG. 3, N may be set to 5 and M may be set to 4.

The frequency of clock pulses generated by the circuit of FIG. 4 must correspond to 360 pulses per machine cycle.

If the inverter device is generating three-phase power, six control pulses are required, one for each 1/2 cycle, so the input pulse train frequency is 6 times the output frequency.

When the frequency of the LVO71 is 1440 Hz, the inverter device is operating at 24 Hz and the number of revolutions per minute is 5, which requires a total number of 5 x 360 pulses per minute, which is a vibration of 30 Hz. It is a number.

Therefore, if F(OUT) is equal to 30 hertz, then F
(OUT)-F(LvO)/P=1440/48-30
Since it is Hertz, the value of P is 48.

In summary, the present invention relates to timing signal generation means and power for an apparatus for forming glass products.

A block diagram of the power and timing signal generation means is shown in FIG. 6 and is used to summarize the invention.

The glassware forming apparatus includes means for forming a mass of molten glass and distributing the mass at a predetermined rate to an individual section glassware forming machine, and generating electrical power at a selected frequency and proportional to the selected frequency. means for generating a timing signal at a frequency; drive means responsive to electrical power for driving the means for forming and dispensing the mass at a predetermined rate; and a control circuit responsive to the timing signal to cyclically control each of the individual section machines in time-sequential steps.

The power and timing signal generating means includes a power and frequency reference signal source and means responsive to the frequency reference signal for generating a timing signal.

This source 91 sends power to a drive means for bulk distribution and a frequency reference signal.
nal) to the timing signal generating means.

In one embodiment (see FIG. 4), the power and frequency reference signal source includes an oscillator for generating a frequency reference signal;
frequency dividing means responsive to the frequency reference signal to generate a control signal having a frequency equal to the reference signal frequency divided by a factor; Including the inverter drive device that generates.

In another embodiment (see FIG. 3), the power and frequency reference signal source includes inverter drive means for generating power at a selected frequency.

In this embodiment, the power signal also functions as a frequency reference signal supplied to the timing signal generating means.

The timing signal generating means includes a clock frequency divider circuit 93 for generating clock pulses utilized by the glassware forming machine control circuitry as a reference for specifying the time of the machine cycle, which machine cycle is more or less Usually defined by 360 clock pulses, although pulses may be used.

The timing means also includes a reset frequency divider circuit 94 for generating a reset pulse that typically has one pulse of oscillation per machine cycle.

In one embodiment (see FIG. 4), the timing signal generating means is adapted to frequency reference signal to generate a timing clock signal having a frequency equal to the reference signal frequency divided by a first factor P. and responsive first frequency division means.

A second frequency divider means is responsive to the timing clock signal to generate a timing reset signal having a frequency equal to the clock signal frequency divided by a second factor 360.

In another embodiment (see FIG. 3), the timing signal generating means is responsive to the electrical power to generate a first human power signal having a frequency equal to the electrical power frequency divided by the first factor M. a first frequency division means, and a second frequency division means responsive to the timing signal to generate a second human input signal having a frequency equal to the timing signal frequency divided by a second factor N; It further includes a phase locked loop responsive to the first and second human power signals to generate a timing signal having a frequency equal to the power frequency divided by the first factor and multiplied by the second factor.

A third frequency dividing means is responsive to the timing signal to generate a timing reset signal having a frequency equal to the timing signal frequency divided by a third factor 360.

The circuits shown in FIGS. 3 and 4 can also be combined to form a timing pulse generator, here driving a drive motor from a selected one of two or more different power supplies. It is hoped that it will work.

For example, the output for normal operation may be generated by an inverter, and the output for emergency operation may be generated by a var
idyne).

Line 51 in FIG. 3 is read directly to the power input terminal of the 1 drive motor.

The ÷M circuit 54 is replaced by a filter or set to a certain value such that the signal with a frequency of F(IN)7M is of the same frequency as the frequency of the input power to the drive motor. Ru.

The ÷N circuit 57 is configured such that the output signal of the line 52 is F(OUT).
Set to divide by a factor of 60 to have a frequency of -N-F(IN)/M=60·F(IN).

This frequency division circuit 62 is not used.

In FIG. 4, the LVO 71, the ÷ circuit 72, the monostable multi-break 73, and the impark device 74 are not utilized.

The line 52 from the modified circuit of FIG.
connected to human power.

If the factor P is scaled by 48 cents, then the relationship between the frequency of the motor output, F(IN) in FIG. 3, and the frequency of the clock pulse, F(OUT) in FIG. 4, is F(
OUT)-e! O-F(IN)/48=1.25XF(
The principles and mode of operation of the invention have been explained in its preferred embodiment in accordance with the flexibility of the patent qualification, which characterizes the correct relationship between the speed of the drive motor and the timing of the Is machine.

However, it is to be understood that the invention may be practiced and described other than as specifically illustrated without departing from the spirit or scope of the invention.

Although the power source is described as an inverter or a drive device, any power source of AC signal or polyphase power source is a motor/driver.
It can be used as a generator device.

If it is not desired to consider the individual section machine as a zero-phase reference, various means can be used to change the phase between the power supply frequency and the clock pulse frequency to advance or retard the phase of the machine with respect to the mass feeder or mass distributor. 1.25 may be provided to vary the ratio.

For example, in FIG. 4, a counter 76 can be selectively programmed to vary from a normal division of 48 by the action of one or more switches to receive clock pulses and reset pulses with respect to the phase of power from an inverter device. advance or delay.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a prior art glass product forming apparatus. FIG. 2 is a block diagram of a glass product forming apparatus according to the present invention. FIG. 3 is a 7172 diagram of the timing circuit of FIG. FIG. 4 is a block diagram of another embodiment of a timing circuit according to the present invention. FIG. 5 is a table of timing values for the glass product forming apparatus of FIG. FIG. 6 is a generalized 7172 diagram of a timing circuit according to the present invention. 11...Individual section glass product forming machine,
12... Lump distribution device, 13...
Bulk feeding device, 14...Motor, 15.
... Motor, 16 ... Inverter device, 17 ... Valve block, 18 ... Mechanical leg circuit, 19 ... Transducer, 21 ... Transducer, 22 ...Clock source, 31...
...individual section machine, 32... lump distribution device, 33... lump feeding device, 33
4...Motor, 35...Motor,
36... Inverter device, 37... Valve block, 38... Machine leg circuit, 39...
...timing circuit, 41... lump sensor, 42... lump detection circuit, 52...
...Output line, 53...Line, 54...
・Vibration frequency division circuit, 55...Phase detection device, 5
6...Phase w link loop, 57...
Second frequency division circuit, 61... Voltage controlled oscillator, 62... Third frequency division circuit, 71...
...Voltage controlled oscillator, 72... Frequency division circuit, 73... Monostable multi-bi break, 74.
...Inverter device, 75...Line, 7
6... Frequency division circuit, 79... Line, 77... Monostable multivibrake, 78...
...Monostable multibibreak, 81...
・Third frequency division circuit, 82...Fourth frequency division circuit, 83...Fifth frequency division circuit, 86.
... Line, 85 ... Monostable multi-bi break, 91 ... Power and frequency reference signal source,
92... Drive means, 93... Clock frequency division circuit, 94... Reset vibration frequency division circuit.

Claims (1)

Claims: 1. An apparatus for forming glassware, the apparatus comprising: means for forming a mass of molten glass and dispensing the mass at a predetermined rate to an individual section glassware forming machine; means for generating electrical power at a frequency and a timing signal at a frequency proportional to the selected frequency, and responsive to the electrical power to drive the means for forming and dispensing the mass at the predetermined rate. a drive means and a control circuit responsive to the timing signal for cyclically controlling each of the individual sections of the individual section machine in a predetermined timed sequence of steps for forming a glass article from the mass; and the above device. 2. The apparatus of claim 1, wherein the power and timing signal generating means comprises inverter means for generating the power at the selected frequency. 3. The apparatus of claim 1, wherein the power and timing signal generating means comprises means responsive to the power to generate the timing signal. 4. Individual section glassware forming, each having a block feed means for forming a block of molten glass at a predetermined rate and a means for forming a glassware from the block at a predetermined time and in a specified sequence of forming stages. means for distributing the mass to the machine at a predetermined speed; an inverter device for generating electrical power at a predetermined frequency; and a means for driving the mass feeding means and the mass distributing means at a predetermined speed. a drive means responsive to the inverter output; a control circuit responsive to a timing signal for controlling a specified sequence of steps at a predetermined time in each of the individual sections; and a timing pulse generator for generating a first input signal having a frequency equal to the frequency of the inverter output divided by a first factor. a first frequency divider circuit connected to the timing signal to generate a second input signal having a frequency equal to the frequency of the timing signal frequency divided by a second factor; a second frequency divider circuit connected thereto; 2. Apparatus according to claim 1, further comprising means responsive to first and second input signals. 5. The apparatus of claim 4, wherein the means responsive to the first and second input signals are phase-locked loops.