Air Saving Fast Can Handling Process and Device

Abstract

A process, with enabling mechanical system, for providing very brief pulses of pressurized air to can making tooling, in particular, punches found in cuppers and bodymakers. Electromagnetic valves having very high speeds of operation are used. The electromagnetic valves can operate in a fraction of the time of the standard valves used in the prior art. This in turn means that air can be conserved since continuous high pressure air is no longer required, and production can be accelerated. High speed valves, combined with a pneumatic check valve, can be used to deliver a sequence of pulses of air pressure, resulting in air hammer. The air hammer is found to be very effective for can removal from tooling.

Description

COPYRIGHT NOTICE

A portion of the disclosure of this patent document contains material which is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but reserves all copyright rights whatsoever. 37 CFR 1.71(d).

FIELD OF THE INVENTION

This invention relates generally to can handling using air pressure devices, and in particular to new devices and processes for controlling air and handling cans at high speed.

STATEMENT REGARDING FEDERALLY FUNDED RESEARCH

This invention was not made under contract with an agency of the US Government, nor by any agency of the US Government.

BACKGROUND OF THE INVENTION

During can making from sheet roll metal, several punches or punch-like tools are used: the riser and die center used in the Cupper, and the ram & punch used in the Bodymaker.

In each machine, the die center or punch device is very firmly pushed against the metal of the cup and the can body. This results in a degree of adhesion between the punch and the can, for example, due to the vacuum which forms inside the can as its interior is increased in size while being tightly engaged to the punch. This adhesion causes problems. The cup/body/can must be removed from the die center/punch, requiring some form of separation device. The can may become a tear off during processing, causing a jam. The removal takes time, slowing production. In addition, the punch in a bodymaker may itself wobble (this is normally called ‘ram whip’ rather than punch wobble) regardless of the adhesion of the can to the punch. The longer or heavier the ram is, the more ram whip occurs. Can stripers serve a secondary purpose as guides to keep the ram properly positioned as it moves.

Various countermeasures are taken at various stages: punches may be cross-hatched, oil and coolant may be applied, and mechanical devices are employed to make certain that cans are removed if air removal fails.

Air removal is the preferred method of disengaging cans from the die centers/punches, (both of which are being identified as ‘punches’ here, but strictly for purposes of clarity in this application: the term is not used that way in the actual can industry). A standard spool valve or the like (a mechanical rotary valve) is used to send pressurized air to the punches and thus remove the vacuum inside of the can and provide impetus for the can to depart the die center/punch (“punch” herein). The air may continuously pressurized in the pneumatic feed lines, and may be turned on even while a can forming process is ongoing, for example, while a punch is forcing a can through the third die, the ironing die, in the bodymaker. Since this is not terribly reliable, the mechanical can stripper mentioned above is employed when cans do not leave the punch. The spool valve itself wears rapidly (being essentially a piston in a cylinder) and must be rebuilt after relatively small numbers of cycles such as two to five million cycles. (This is a small number given that the can production facilities turn out cans in lots of hundreds of thousands to half a million cans per day.)

Also, the standard valve does not provide for quick operation in closing and opening. This slowness of operation (20 to 30 milliseconds, growing longer as the spool wears) means that the valve essentially has to keep the high pressure lines downstream of the valve continuously pressurized, the valve cannot be employed to provide very brief surges of pressure, and the valve speed becomes one limiting factor (among many) in the production of cans.

In addition, as a cup is dropping off the die center in the cupper machine, the continuous flow of high pressure air makes it flutter, leading to false jams and shutting down the machine until human operator intervention.

Finally, the continuous provision of high pressure air means that the plant air supply must be employed more than optimally, increasing costs. In the case of some machines, such as the cuppers, this cost can be quite substantial.

It would be preferable to provide a device and process which provides more reliable can production by reducing jams, false jam signals, erratic cup movement and the like.

It would obviously be preferable to find a way to reduce the cost of air supplied to the can production line.

It would further be preferable to provide a system and process which reduces the need for mechanical extraction devices.

It would even further be preferable to provide a system having valves allowing for pulses of air to be used to create air hammer to remove the cans/cups.

It would yet further be preferable to provide a system and process to speed production of cans.

It would further be preferable to reduce cup flutter and false jams.

It would even further be preferable to provide a valve able to operate considerably longer than 2-5 million cycles before requiring a rebuild.

The present invention is directed to solving these problems.

SUMMARY OF THE INVENTION

General Summary

The present invention teaches a process, with supporting mechanical system, for providing very brief pulses of pressurized air.

In particular, electromagnetic valves having very high speeds of operation are used. These valves have not previously been considered suitable for can making, since they were developed in Germany for an aerospace application having nothing to do with production of anything.

The electromagnetic valves can operate in a fraction of the time of the standard valves used in the prior art. This in turn means that air can be conserved since continuous high pressure air is no longer required.

In particular the high speed valve allows for multiple pulses of high pressure air during the time when an older spool valve could only provide a single pulse of air.

However, one unexpected benefit of the system is discovered to be that high speed valves, combined with a pneumatic check valve, can be used to deliver a sequence of pulses of high air pressure in a resonating frequency resulting in air hammer. The air hammer is found to be very effective for can removal from tooling.

The degree of air hammer is dependent upon a complex equation for volumes, speed of bodymaker operation, can volume, punch volume and so forth, and can be controlled via further variables including speed of the bodymaker, control of the valve, pressure and so forth.

The greater speed of can stripping offers a wider latitude of operating conditions for the machinery. The electromagnetic valve can operate for over 1 billion cycles before a rebuild, a factor of 200 times greater than the prior art valves. Cup flutter is reduced, leading to fewer false jams.

SUMMARY IN REFERENCE TO CLAIMS

It is therefore another aspect, advantage, objective and embodiment of the invention, in addition to those discussed previously, to provide a method of removing a can engaged to a punch, the method comprising the steps of:

• • Providing a source of high pressure air;
  • Providing a high speed valve, the high speed valve capable of actuation in a time of 5 milliseconds or less, the source of high pressure air pneumatically connected to the high speed valve, the high speed valve pneumatically connected to such punch;
  • Using the high speed valve, providing a plurality of pulses of the high pressure air to such punch but not providing the high pressure air continuously;
  • Whereby such can is disengaged from such punch using less of the high pressure air than if the high pressure air had been provided continuously.

It is therefore another aspect, advantage, objective and embodiment of the invention, in addition to those discussed previously, to provide a method of removing a can engaged to a punch, wherein the pulses of the high pressure air further comprise:

A timed sequence of the plurality of pulses in a resonant frequency resulting in air hammer within the pneumatic connection from the high speed valve to such punch and such punch.

It is therefore another aspect, advantage, objective and embodiment of the invention, in addition to those discussed previously, to provide a method wherein the punch further comprises:

A die center and riser mounted to a cupper machine.

It is therefore another aspect, advantage, objective and embodiment of the invention, in addition to those discussed previously, to provide a method wherein the punch further comprises:

A ram and punch mounted to a bodymaker machine.

It is therefore another aspect, advantage, objective and embodiment of the invention, in addition to those discussed previously, to provide a can making machine for forming a can from a work piece, such can making machine having at least one punch, such punch carrying such work piece through a constricted tooling to increase an interior size of such work piece, such work piece having a tendency to become engaged to such punch for a period of time due to vacuum formation in such interior of such work piece as such punch increases such interior's size, the can making machine comprising:

• • a source of air pneumatically connected to a pressure regulator;
  • the pressure regulator pneumatically connected to an receiver tank;
  • the receiver tank pneumatically connected to a high speed valve;
  • the high speed valve controlled by a signal generated by a programmable logic controller, the high speed valve operable to supply high pressure air;
  • the valve pneumatically connected to a pneumatic check valve;
  • the pneumatic check valve pneumatically connected to such punch;
  • the high speed valve not supplying the high pressure air continuously to the pneumatic check valve and such punch;
  • the high speed valve supplying a plurality of pulses of the high pressure air to the pneumatic check valve and to such punch and such interior of such work piece while such work piece is engaged to such punch for such period of time;
  • whereby such work piece is disengaged from such punch without the high pressure air being continuously supplied.

It is therefore another aspect, advantage, objective and embodiment of the invention, in addition to those discussed previously, to provide a wherein the high speed valve is an electromagnetic valve.

It is therefore another aspect, advantage, objective and embodiment of the invention, in addition to those discussed previously, to provide a further comprising: A can stripper, the can stripper functioning only to guide the punch.

It is therefore another aspect, advantage, objective and embodiment of the invention, in addition to those discussed previously, to provide a further comprising: A lightweight insert disposed within such bodymaker ram, the lightweight insert reducing a punch/bodymaker ram interior volume:

Whereby the amount of air used is further reduced and the speed of operation is further increased.

It is therefore another aspect, advantage, objective and embodiment of the invention, in addition to those discussed previously, to provide a wherein the can making machine further comprises:

• • A bodymaker;
  • and the punch further comprises:
  • a ram disposed upon the punch.

It is therefore another aspect, advantage, objective and embodiment of the invention, in addition to those discussed previously, to provide a wherein the can making machine further comprises:

• • A cupper.

It is therefore another aspect, advantage, objective and embodiment of the invention, in addition to those discussed previously, to provide a wherein the cupper further comprises:

• • A check valve, the high speed valve supplying high pressure air pulses to such punch via the check valve.

It is therefore another aspect, advantage, objective and embodiment of the invention, in addition to those discussed previously, to provide a wherein the electromagnetic valve has an actuation time of less than 5 milliseconds, preferably less than 1 millisecond.

It is therefore another aspect, advantage, objective and embodiment of the invention, in addition to those discussed previously, to provide a wherein the plurality of pulses of high pressure air have a pulse time and the pulse time is less than 5 milliseconds.

It is therefore another aspect, advantage, objective and embodiment of the invention, in addition to those discussed previously, to provide a wherein the plurality of pulses further comprise: a time sequence of the plurality of pulses in a resonant frequency resulting in air hammer within: the pneumatic connection from the high speed valve to such punch, such punch, and such work piece interior.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic drawing of the air flow through the bodymaker system with the standard (non-high speed) valve from the plant air to the extraction of the body (semi-formed can) from the punch, but with continuous high pressure air supplied and without the air hammer invention of the system.

FIG. 2 is a schematic drawing of the air flow through the bodymaker system using the unique high speed strip valve to send air hammer through a pneumatic valve to the can extraction from the punch, thus eliminating can jams as well as the use of a mechanical can stripper device, while also allowing use of less air, better can stripping from the punch, and higher speed operations.

FIG. 3 is a schematic drawing of the air flow through the cupper with a standard valve supplying high pressure air at all times and without the use of the high speed valve of the invention and the air hammer of the invention.

FIG. 4 is a schematic drawing of the air flow through the cupper with the use of the high speed valve of the invention and the air hammer (pulsating high and low pressure air) to provide smooth cup extraction and reduce cup movement.

FIG. 5 is a schematic diagram of the air flow from a single plant air source to both cupper and bodymaker passing through two different control paths, each with different and specifically tailored PLCs and signals, to valves and actuators which are tailored to the needs of the particular machine (cupper or bodymaker) downstream from the valves.

FIG. 6A is a graph showing the control signal of the PRIOR ART spool valve versus crank angle of the machine.

FIG. 6B is a graph showing the electromagnetic response for the spool valve coil of the PRIOR ART, also versus machine crank angle.

FIG. 6C is a graph showing the airflow response also as a function of machine crank angle in the PRIOR ART spool valve.

FIG. 6D is a graph which simply shows the machine crank phase angle per the PRIOR ART.

FIG. 7A is graph showing the control signal of the present invention in relation to crank angle.

FIG. 7B is a graph showing the high speed valve airflow response of the invention: there is no coil response graph as the high speed valve has no coil. It may be seen that the response is entirely different: a series of pulses.

FIG. 7C is a graph showing the machine crank angle of the invention, showing the same crank angle despite the differing times of actuation (as measured by crank angle) when the machine uses the new valve arrangement.

INDEX TO REFERENCE NUMERALS
FIG. 1
Plant air                        100
Pressure regulator               102
Receiver tank                    104
Standard air valve               106
Ram                              108
Programmable logic controller    110
Signal                           112
Punch                            114
Can extraction                   116
Mechanical can stripper          118
Die                              120
Pneumatic or electric connections Arrows
FIG. 2
Plant air                        200
Pressure regulator               202
Receiver tank                    204
High speed strip air valve       206
Ram                              208
Programmable logic controller    210
Pulse signal                     212
Punch                            214
Can extraction                   216
Pneumatic check valve            218
Mechanical can stripper -        220
but ram guide only
Die                              222
Pneumatic or electric connections Arrows
FIG. 3 -- PRIOR ART
Plant air                        300
Pressure regulator               302
Receiver tank                    304
Standard air valve               306
Riser                            308
Programmable logic controller    310
Signal                           312
Die center                       314
Cup discharge chute              316
Can extraction                   318
Blank and draw                   320
Pneumatic or electric connections Arrows
FIG. 4
Plant air                        400
Pressure regulator               402
Receiver tank                    404
High speed strip air valve       406
Riser                            408
Programmable logic controller    410
Pulse signal                     412
Die center                       414
Cup discharge chute              416
Can extraction process           418
Pneumatic check valve            420
Pneumatic or electric connections Arrows
FIG. 5
Valve/actuator tailored to cupper needs 502
Cupper                           504
Valve/actuator tailored to       506
bodymaker needs
Bodymaker                        508

DETAILED DESCRIPTION

Glossary

As used herein, “such” refers to items which are not part of the invention itself but rather are work pieces sorted by the invention, including cans, can interiors, exteriors, domes, decorations, layers of cans, pallets of cans, etc.

Punch means die centers (used in the cupper machine), and also the punch, used inside the bodymaker machine.

Air hammer refers to resonance in a system in which a high impulse can be generated when frequencies of resonation amplify, generating a brief force which can be much greater than the pressure originally applied to the system.

As used in the claims herewith, the term “work piece” is a generic term to refer to a can, a cup, a can body, etc, throughout any of the stages of manufacture. The more specific terms are used in this description.

End Glossary

FIG. 1 is a schematic drawing of the air flow through the bodymaker system from the plant air to the extraction of the body (semi-formed can) from the ram/punch, but with continuous high pressure air supplied and without the air hammer invention of the system. Plant air 100 provides pressurized air via pressure regulator 102 to receiver tank 104. This arrangement provides a large volume of high pressure air, minimizing pressure fluctuations in the source of the air.

Standard strip air valve 106 is controlled by the programmable logic controller 110, which signals (112) the valve 106 to open and close at its actuation speed.

Can extraction 116 involves a mechanical can stripper 118 in case the high pressure air continuously fed to the punch does not disengage the can from its mechanical engagement with the punch, as well as additional air.

Finally, the various pneumatic and electrical connections are depicted as arrows.

FIG. 2 is a schematic drawing of the air flow through the bodymaker system using the unique high speed strip valve to send air hammer through a pneumatic valve to the can extraction from the punch, thus almost eliminating or minimizing can tear off, and use of a mechanical can stripper device, while also allowing use of less air, better can stripping from the punch, and higher speed operations.

Plant air 200 again feeds via pressure regulator 202 to receiver tank 204. However, in this embodiment there is the high speed strip air valve 206, for example, an electromagnetic valve or other type of valve capable of operating at high speed (such as 5 actuation time or less).

Programmable logic controller 210 uses pulse signals 212 to control the valve 206, but the PLC sends different signals than in the prior art. In the invention, the PLC 208 signals 210 are to open and close the valve differently and to cause a plurality of pulses of air, instead of the fewer (due to being slower) signals sent in the prior art. In addition, these signals allow the air in the pneumatic connects (arrows) to be pulsed with high pressure during a single cycle of can manufacture, that is, multiple pulses where the prior art could only supply continuous high pressure air or a single pulse.

Can extraction 216 in this embodiment has a pneumatic check valve 218. When a pulse in the plurality of pulses of high pressure air is delivered, it is sufficient to open the valve and allow the high pressure past and into the punch of the bodymaker. When the pulse stops, the check valve is able to close. In the prior art, there is very little if any distinction since high pressure air is supplied essentially continuously.

Another advantage of the system is that the increased reliability of operation negates or substantially reduces the use of the mechanical can stripper to merely being a guide for the punch, in order to avoid ram whip. In embodiments, the mechanical stripper device may be omitted entirely, however in the best mode presently contemplated and preferred embodiment, the mechanical stripper is retained on the machinery, not just as a guide but in case it is needed as a stripper, for example, if there is a malfunction in some other part of the system.

FIG. 3 is a schematic drawing of the air flow through the cupper with a standard valve supplying high pressure air at all times and without the use of the high speed valve of the invention and the air hammer of the invention. Plant air 300 passes through a pressure regulator 302 and receiver tank 304 to reach the slow, known, standard air valve 306, which of course is incapable of high speed operation and all the benefits discussed throughout this application.

Programmable logic controller 310 sends signal 312 to valve 306 for a single open cycle per cup punched out of sheet metal.

One important issue discussed earlier, is that the can extraction process 316, utilizing continuous high pressure air, can cause erratic cup movement or even bouncing when the cup is dropped to the cup discharge chute 316 at higher speeds.

FIG. 4 is a schematic drawing of the air flow through the cupper with the use of the high speed valve of the invention and the air hammer (pulsating high and low pressure air) to provide smooth cup extraction and reduce cup movement. Plant air 400, pressure regulator 402 and receiver tank 404 function to provide the desired supply of high pressure air to the high speed strip air valve 406, controlled by programmable logic controller 410 pulse signals 412 to provide a plurality of pulsed signals to the valve.

The pneumatic connections to the cup extraction 418 (inside of the die center) are closed at the die center end by a pneumatic check valve 420. This maintains a differential between the high pressure pulses of air and the periods between the pulses, as the check valve closes when high pressure is removed. The high pressure pulses occur multiple times per cup punching cycle, so as discussed previously, proper timing of the pulses in relation to variables controlling them can be used to cause air hammer, greatly increasing the reliability of cup removal.

In addition, cup discharge chute 416 receives cups which are NOT being blown about by continuous high pressure air, as the high pressure air is shut off very quickly by the high speed valve 406.

FIG. 5 is a schematic diagram of the air flow from a single plant air source to both cupper and bodymaker passing through two different control paths, each with different and specifically tailored PLCs and signals, to valves and actuators which are tailored to the needs of the particular machine (cupper or bodymaker) downstream from the valves.

In this case, valve actuators 502 versus 506 do not need to be identical, as a cupper 504 versus a bodymaker 508 may require different deliveries of pulsed air (for example different sequences of pulses, different lengths of pulses and so forth). This in turn means that the cupper PLC and the bodymaker PLC may have different programming and may send different control signals to the two different high speed PLCs (which may also have different control logic programming) which are controlling the two different valves 502 versus 506.

FIG. 6A is a graph showing the control signal of the PRIOR ART spool valve versus crank angle of the machine. The machine crank angle at the start of the control signal from the prior art PLC is 100 degrees, with the signal lasting until 220 degrees, ie one third of a revolution of the crank.

FIG. 6B is a graph showing the electromagnetic response for the spool valve coil of the PRIOR ART, also versus machine crank angle. The coil begins to energize essentially as soon as the signal begins (around 100 degrees) but then requires a further period (20 degrees, to 120 degrees) for the coil to fully charge: this is simply the nature of electrical coils. At the 220 degree mark when the signal ends, the magnetism in the coil begins to dissipate (or quickly thereafter, ie 222 degrees) but the dissipation requires an additional time period, until 242 degrees. Thus in the prior art, actuation until dissipation requires more than one third of the crank revolution: 142 degrees in total.

Even worse, airflow takes even longer to respond to control. FIG. 6C is a graph showing the airflow response also as a function of machine crank angle in the PRIOR ART spool valve. As the spool valve (prior art) begins to shift at 120 degrees the airflow barely begins, ramping up until 160 degrees when airflow finally reaches its maximum value (with insignificant overshoot to excess air very briefly just after 160 degrees). It holds the maximum value until 222 degrees when the spool valve can finally begin to close, but the ramping down process for the air lasts until 310 degrees. At this point it can be seen that from PLC signal start (100 degrees) to airflow end (310 degrees) the process requires 210 degrees of time of the crank turn, which is actually just over W₂ of the entire revolution of the crank.

The results of this slow process are as discussed previously.

FIG. 6D is a graph which simply shows the machine crank phase angle per the PRIOR ART.

FIG. 7A is graph showing the control signal of the present invention in relation to crank angle. It is much later in the cycle, starting at 170 degrees and lasting until 280 degrees. However, the significant difference is actually seen in FIG. 7B. FIG. 7B is a graph showing the high speed valve airflow response of the invention: there is no coil response graph as the high speed valve has no coil. It may be seen that the response is entirely different: a series of pulses. Each pulse has a very quick onset (compare to the onset slope of the graph in FIG. 6C) and a quick decay (compare to the decay slope in FIG. 6C). In the space of 110 degrees plus only 5 degrees extra, several pulses with several complete cessations are completed. This in turn allows the airhammer discussed above, as well as saving plant air, etc.

Finally, instead of requiring 7/12 of the complete crank revolution (210 degrees in the prior art) this process requires less than 1/3 of the complete crank revolution.

FIG. 7C is a graph showing the machine crank angle of the invention, showing the same crank angle despite the differing times of actuation (as measured by crank angle) when the machine uses the new valve arrangement.

The disclosure is provided to render practicable the invention by those skilled in the art without undue experimentation, including the best mode presently contemplated and the presently preferred embodiment. Nothing in this disclosure is to be taken to limit the scope of the invention, which is susceptible to numerous alterations, equivalents and substitutions without departing from the scope and spirit of the invention. The scope of the invention is to be understood from the appended claims.

Methods and components are described herein. However, methods and components similar or equivalent to those described herein can also be used to obtain variations of the present invention. The materials, articles, components, methods, and examples are illustrative only and not intended to be limiting.

Although only a few embodiments have been disclosed in detail above, other embodiments are possible and the inventors intend these to be encompassed within this specification. The specification describes specific examples to accomplish a more general goal that may be accomplished in another way. This disclosure is intended to be exemplary, and the claims are intended to cover any modification or alternative which might be predictable to a person having ordinary skill in the art.

Having illustrated and described the principles of the invention in exemplary embodiments, it should be apparent to those skilled in the art that the described examples are illustrative embodiments and can be modified in arrangement and detail without departing from such principles. Techniques from any of the examples can be incorporated into one or more of any of the other examples. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

Claims

1. A method of removing a can engaged to a punch, the method comprising the steps of:

Providing a source of high pressure air;

Providing a high speed valve, the high speed valve capable of actuation in a time of 5 milliseconds or less, the source of high pressure air pneumatically connected to the high speed valve, the high speed valve pneumatically connected to such punch;

Using the high speed valve, providing a plurality of pulses of the high pressure air to such punch but not providing the high pressure air continuously;

Whereby such can is disengaged from such punch using less of the high pressure air than if the high pressure air had been provided continuously.

2. The method of claim 1, wherein the pulses of the high pressure air further comprise:

A timed sequence of the plurality of pulses in a resonant frequency resulting in air hammer within the pneumatic connection from the high speed valve to such punch and such punch.

3. The method of claim 2, wherein the punch further comprises:

A die center mounted to a cupper machine.

4. The method of claim 2, wherein the punch further comprises:

A punch mounted to a bodymaker machine.

5. A can making machine for forming a can from a work piece, such can making machine having at least one punch, such punch carrying such work piece through a constricted tooling to increase an interior size of such work piece, such work piece having a tendency to become engaged to such punch for a period of time due to vacuum formation in such interior of such work piece as such punch increases such interior's size, the can making machine comprising:

a source of air pneumatically connected to a pressure regulator;

the pressure regulator pneumatically connected to an receiver tank;

the receiver tank pneumatically connected to a high speed valve;

the high speed valve controlled by a signal generated by a programmable logic controller, the high speed valve operable to supply high pressure air;

the valve pneumatically connected to a pneumatic check valve;

the pneumatic check valve pneumatically connected to such punch;

the high speed valve not supplying the high pressure air continuously to the pneumatic check valve and such punch;

the high speed valve supplying a plurality of pulses of the high pressure air to the pneumatic check valve and to such punch and such interior of such work piece while such work piece is engaged to such punch for such period of time;

whereby such work piece is disengaged from such punch without the high pressure air being continuously supplied.

6. The can making machine of claim 5, wherein the high speed valve is an electromagnetic valve.

7. The can making machine of claim 6, further comprising:

A can stripper, the can stripper functioning only to guide the punch.

8. The can making machine of claim 6, wherein the can making machine further comprises:

A bodymaker;

and the punch further comprises:

a ram.

9. The can making machine of claim 8, further comprising:

A lightweight insert disposed within such bodymaker ram, the lightweight insert reducing a ram interior volume;

Whereby the amount of air used is further reduced and the speed of operation is further increased.

10. The can making machine of claim 6, wherein the can making machine further comprises:

A cupper.

11. The can making machine of claim 10, wherein the cupper further comprises:

A check valve, the high speed valve supplying high pressure air pulses to such punch via the check valve.

12. The can making machine of claim 6, wherein the electromagnetic valve has an actuation time of less than 5 milliseconds, preferably less than 1 millisecond.

13. The can making machine of claim 12, wherein the plurality of pulses of high pressure air have a pulse time and the pulse time is less than 5 milliseconds.

14. The can making machine of claim 13, wherein the plurality of pulses further comprise: a time sequence of the plurality of pulses in a resonant frequency resulting in air hammer within: the pneumatic connection from the high speed valve to such punch, such punch, and such work piece interior.