EP0402754A2 - Vibration frequency setting mechanism of an engraving device provided with air pen - Google Patents
Vibration frequency setting mechanism of an engraving device provided with air pen Download PDFInfo
- Publication number
- EP0402754A2 EP0402754A2 EP90110707A EP90110707A EP0402754A2 EP 0402754 A2 EP0402754 A2 EP 0402754A2 EP 90110707 A EP90110707 A EP 90110707A EP 90110707 A EP90110707 A EP 90110707A EP 0402754 A2 EP0402754 A2 EP 0402754A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- vibration frequency
- output
- air
- air pen
- comparator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
- B44B3/00—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings
- B44B3/005—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings characterised by the power drive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
- B44B3/00—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings
Definitions
- the present invention relates to an engraving device provided with an air pen having a vibration frequency which can be set to a prescribed value by a vibration frequency setting means.
- the prior art engraving device comprises a holder 12 for holding an air pen 11, an air cylinder provided with a pressure rod and connected to the holder 12 and interlocked with the air pen 11 for moving the air pen 11 so that the air pen 11 can engrave the surface of the work, a pressure regulator 13 connected to an air reservoir 14 and supplying the air pressure to the air cylinder so that the air cylinder can supply the air pressure via the pressure rod to the holder 12 at the state where the air pen 11 is brought into contact with the surface of the work and the air pressure applied via the pressure rod is regulated to be constant by the pressure regulator 13 when the air pen 11 is moved in response to the surface of the work.
- the air pen can be vibrated by merely regulating the pressure with use of the pressure regulator 13 according to the prior art engraving device, it was necessary to always pay attention to the variation of the quality of the air pen.
- the variation of quality defines as follows.
- the vibration frequency setting mechanism of an engraving device provided with air pen comprises an engraving device comprising an air pen and a holder for holding the air pen, vibration frequency of the air pen being varied in response to a compressed air to be supplied to the holder, a vibration frequency detector attached to the holder for detecting the vibration frequency of the air pen and providing a pulse signal corresponding to the vibration frequency, a counter for counting the pulse signal, a pressure regulator provided with a regulating terminal for increasing or decreasing the pressure of the compressed air in response to a signal supplied thereto from an output circuit, a vibration frequency setting circuit for setting the vibration frequency of the air pen, a comparator for receiving the output of the counter and the vibration frequency and providing a logical "1" if the output of the counter is greater than the vibration frequency and a logical "0" if the output of the counter is less than the vibration frequency, an output circuit for receiving the output of the comparator and decrementing the analog output at a given step if the output of the comparator is a logical
- a vibration frequency setting mechanism of an engraving device provided with air pen according to a preferred embodiment of the present invention will be described with reference to Figs. 1 and 2.
- the vibration frequency setting mechanism of an engraving device provided with air pen comprises an engraving device comprising an air pen 11 and a holder 12 for holding the air pen 11, vibration frequency of the air pen 11 being varied in response to a compressed air to be supplied to the holder 12, a vibration frequency detector 3 attached to the holder 12 for detecting the vibration frequency of the air pen 11 and providing a pulse signal 21 corresponding to the vibration frequency, a counter 4 for counting the pulse signal 21, a pressure regulator 1 provided with a regulating terminal 2 for increasing or decreasing the pressure of the compressed air in response to a signal supplied thereto from an output circuit 7 (described later), a vibration frequency setting circuit 5 for setting the vibration frequency 22 of the air pen 11, a comparator 6 for receiving the output of the counter 4 and the vibration frequency 22 and providing a logical "1" if the output of the counter 4 is greater than the vibration frequency 22 and a logical "0” if the output of the counter 4 is less than the vibration frequency 22, an output circuit 7 for receiving the output of the comparator 6 and decrementing the analog output at
- the pressure regulator 1 increases or decreases the pressure of the pressurized air in response to amount of signal to be applied to the air regulating terminal 2.
- the vibration detector 3 detects the vibration frequency of the air pen 11 and provides the pulse signal 21 corresponding to the vibration frequency.
- a piezoelectric sensor is employed as the vibration detector 3.
- the counter 4 detects the puslse signal 21 provided by the vibration frequency detector 3.
- the vibration frequency setting circuit 5 sets the vibration frequency 22 of the air pen 11 and employs for example a digital switch.
- the comparator 6 receives the output of the counter 4 and the vibration frequency 22 and provides a logical "1" if the output of the counter 4 is greater than the vibration frequency 22 and a logical "0" if the output of the counter 4 is less than the vibration frequency 22.
- the output circuit 7 receives the output of the comparator 6 and decrements the analog output at a given step if the output of the comparator 6 is a logical "1” and increments the analog output at a given step if the output of the comparator 6 is a logical "0".
- the output circuit 7 may comprise, as illustrated in Fig. 2, a CPU 71 and a D/A converter.
- the CPU 71 provides a digital data which is incremented or decremented at a give step in response to the logical state of the output of the copmarator 6.
- the digital data provided by the CPU 71 is converted to an analog signal by the D/A converter 72.
- the pressure regulator 1 can receive the analog output signal from the D/A converter 72 via the grating terminal 2 which is incremented or decremented in the given step in response to the logical state of the output of the comparator 6.
- the air pen 11 receives the given vibration frequency which is same as the vibration frequency set by the vibration frequency setting circuit 5 from the pressure regulator 1.
- the vibration frequency of the air pen can be kept conformed to the vibration frequency set by the vibration frequency setting circuit 5. Hence, there are following advantages.
Abstract
Description
- The present invention relates to an engraving device provided with an air pen having a vibration frequency which can be set to a prescribed value by a vibration frequency setting means.
- An arrangement of the prior art engraving device provided with an air pen will be described with reference to Figs. 3 and 4. The engraving device provided with the air pen is also described in Japanese Patent Laid-Open Publication No. 63-69700 (U.S. Serial No. 07/411 557). The prior art engraving device comprises a
holder 12 for holding an air pen 11, an air cylinder provided with a pressure rod and connected to theholder 12 and interlocked with the air pen 11 for moving the air pen 11 so that the air pen 11 can engrave the surface of the work, apressure regulator 13 connected to anair reservoir 14 and supplying the air pressure to the air cylinder so that the air cylinder can supply the air pressure via the pressure rod to theholder 12 at the state where the air pen 11 is brought into contact with the surface of the work and the air pressure applied via the pressure rod is regulated to be constant by thepressure regulator 13 when the air pen 11 is moved in response to the surface of the work. - Inasmuch as the air pen can be vibrated by merely regulating the pressure with use of the
pressure regulator 13 according to the prior art engraving device, it was necessary to always pay attention to the variation of the quality of the air pen. The variation of quality defines as follows. - (a) Relationship between air pressure and vibration frequency of the air pen is varied for each air pen. For example, even if the air pen is operated under the same air pressure the vibration frequency of an air pen 11A is greater than that of an air pen 11b as illustrated in Fig. 4.
- (b) Relationship between air pressure and vibration frequency is varied due to secular change of each air pen.
- On the basis of the causes of the variation of quality as set forth in the above (a), (b), it was necessary to regulate air pressure at the optimum value every time the air pen is exchanged for another air pen.
- It is an object of the present invention to provide a vibration frequency setting mechanism of an engraving device provided with air pen capable of eliminating both the exchange of the air pen and the regulation of variation of relationship between air pressure and vibration frequency due to secular change by setting vibration frequency of the air pen to an optimum value.
- To achieve the above object of the present invention, the vibration frequency setting mechanism of an engraving device provided with air pen comprises an engraving device comprising an air pen and a holder for holding the air pen, vibration frequency of the air pen being varied in response to a compressed air to be supplied to the holder, a vibration frequency detector attached to the holder for detecting the vibration frequency of the air pen and providing a pulse signal corresponding to the vibration frequency, a counter for counting the pulse signal, a pressure regulator provided with a regulating terminal for increasing or decreasing the pressure of the compressed air in response to a signal supplied thereto from an output circuit, a vibration frequency setting circuit for setting the vibration frequency of the air pen, a comparator for receiving the output of the counter and the vibration frequency and providing a logical "1" if the output of the counter is greater than the vibration frequency and a logical "0" if the output of the counter is less than the vibration frequency, an output circuit for receiving the output of the comparator and decrementing the analog output at a given step if the output of the comparator is a logical "1" and incrementing the analog output at a given step if the output of the comparator is a logical "0", whereby the analog output of the output circuit is supplied to the regulating terminal of the pressure regulator so that the compressed air is supplied from the pressure regulator to the holder.
- The above and other objects, features and advantages of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings.
- Fig. 1 is a view showing an arrangement of a vibration frequency setting mechanism of an engraving device provided with air pen according to a preferred embodiment of the present invention;
- Fig. 2 is a view showing an arrangement of an output circuit, a constituent of arrangement of Fig. 1;
- Fig. 3 is a view showing an arrangement of a prior art engaving device provided with air pen; and
- Fig. 4 is a graph showing a relationship between vibration frequency and air pressure.
- A vibration frequency setting mechanism of an engraving device provided with air pen according to a preferred embodiment of the present invention will be described with reference to Figs. 1 and 2.
- The vibration frequency setting mechanism of an engraving device provided with air pen comprises an engraving device comprising an air pen 11 and a
holder 12 for holding the air pen 11, vibration frequency of the air pen 11 being varied in response to a compressed air to be supplied to theholder 12, avibration frequency detector 3 attached to theholder 12 for detecting the vibration frequency of the air pen 11 and providing apulse signal 21 corresponding to the vibration frequency, acounter 4 for counting thepulse signal 21, apressure regulator 1 provided with aregulating terminal 2 for increasing or decreasing the pressure of the compressed air in response to a signal supplied thereto from an output circuit 7 (described later), a vibrationfrequency setting circuit 5 for setting thevibration frequency 22 of the air pen 11, acomparator 6 for receiving the output of thecounter 4 and thevibration frequency 22 and providing a logical "1" if the output of thecounter 4 is greater than thevibration frequency 22 and a logical "0" if the output of thecounter 4 is less than thevibration frequency 22, anoutput circuit 7 for receiving the output of thecomparator 6 and decrementing the analog output at a given step if the output of thecomparator 6 is a logical "1" and incrementing the analog output at a given step if the output of thecomparator 6 is a logical "0", whereby the analog output of theoutput circuit 7 is supplied to the regulatingterminal 2 of thepressure regulator 1 so that the compressed air is supplied from thepressure regulator 1 to theholder 12. - The arrangement of the vibration frequency setting mechanism of an engraving device provided with air pen will be described more in detail.
- The
pressure regulator 1 increases or decreases the pressure of the pressurized air in response to amount of signal to be applied to theair regulating terminal 2. Thevibration detector 3 detects the vibration frequency of the air pen 11 and provides thepulse signal 21 corresponding to the vibration frequency. A piezoelectric sensor is employed as thevibration detector 3. - The
counter 4 detects thepuslse signal 21 provided by thevibration frequency detector 3. The vibrationfrequency setting circuit 5 sets thevibration frequency 22 of the air pen 11 and employs for example a digital switch. - The
comparator 6 receives the output of thecounter 4 and thevibration frequency 22 and provides a logical "1" if the output of thecounter 4 is greater than thevibration frequency 22 and a logical "0" if the output of thecounter 4 is less than thevibration frequency 22. Theoutput circuit 7 receives the output of thecomparator 6 and decrements the analog output at a given step if the output of thecomparator 6 is a logical "1" and increments the analog output at a given step if the output of thecomparator 6 is a logical "0". Theoutput circuit 7 may comprise, as illustrated in Fig. 2, aCPU 71 and a D/A converter. TheCPU 71 provides a digital data which is incremented or decremented at a give step in response to the logical state of the output of thecopmarator 6. The digital data provided by theCPU 71 is converted to an analog signal by the D/A converter 72. Accordingly, thepressure regulator 1 can receive the analog output signal from the D/A converter 72 via thereglating terminal 2 which is incremented or decremented in the given step in response to the logical state of the output of thecomparator 6. As a result, the air pen 11 receives the given vibration frequency which is same as the vibration frequency set by the vibrationfrequency setting circuit 5 from thepressure regulator 1. - According to the present invention, the vibration frequency of the air pen can be kept conformed to the vibration frequency set by the vibration
frequency setting circuit 5. Hence, there are following advantages. - (a) Adjustment of the air pen due to the manufacturing variation is eliminated.
- (b) Adjustment of the air pen due to secular change is eliminated.
- (c) It is possible to diagnose the operation of the engraving device by monitoring the counted value of the vibration fregency of the air pen during the fixed time.
- Although the invention has been described in its preferred form with a certain degree of paticularity, it is to be understood that many variations and changes are possible in the invention without departing from the scope thereof.
The features disclosed in the foregoing description, in the claims and/or in the accompanying drawings may, both separately and in any combination thereof, be material for realising the invention in diverse forms thereof.
Claims (2)
an engraving device comprising an air pen (11) and a holder (12) for holding the air pen (11), vibration frequency of the air pen (11) being varied in response to the compressed air to be supplied to the holder (12);
a vibration frequency detector (3) attached to the holder (12) for detecting the vibration frequency of the air pen (11) and providing a pulse signal (21) corresponding to the vibration frequency;
a counter (4) for counting the pulse signal (21);
a pressure regulator (1) provided with a regulating terminal (2) for increasing or decreasing the pressure of the compressed air in response to a signal supplied thereto from an output circuit (7) (described later);
a vibration frequency setting circuit (5) for setting the vibration frequency (22) of the air pen (11);
a comparator (6) for receiving the output of the counter (4) and the vibration frequency (22) and providing a logical "1" if the output of the counter (4) is greater than the vibration frequency (22) and a logical "0" if the output of the counter (4) is less than the vibration frequency (22);
an output circuit (7) for receiving the output of the comparator (6) and decrementing the analog output at a given step if the output of the comparator (6) is a logical "1" and incrementing the analog output at a given step if the output of the comparator (6) is a logical "0";
whereby the analog output of the output circuit (7) is supplied to the regulating terminal (2) of the pressure regulator (1) so that the compressed air is supplied from the pressure regulator (1) to the holder (12).
the CPU (71) producing digital data which is incremented or decremented at a given step in response to a logical state provided by the comparator (6) and the D/A converter (72) converting the digital data provided by the CPU (71) into an analog signal.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1154075A JPH0780396B2 (en) | 1989-06-16 | 1989-06-16 | Frequency setting mechanism of engraver using air pen |
JP154075/89 | 1989-06-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0402754A2 true EP0402754A2 (en) | 1990-12-19 |
EP0402754A3 EP0402754A3 (en) | 1991-07-10 |
Family
ID=15576344
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19900110707 Withdrawn EP0402754A3 (en) | 1989-06-16 | 1990-06-06 | Vibration frequency setting mechanism of an engraving device provided with air pen |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0402754A3 (en) |
JP (1) | JPH0780396B2 (en) |
KR (1) | KR950012966B1 (en) |
CA (1) | CA2018906A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1106387A2 (en) * | 1999-11-30 | 2001-06-13 | Ando Electric Co., Ltd. | Marking apparatus with oscillation control system |
DE10210630B4 (en) * | 2001-03-23 | 2005-07-07 | Seh Technik Gmbh | Puncturing stamping head |
DE102006022166A1 (en) * | 2006-05-12 | 2007-11-15 | Nc-Automation Gmbh | Cut marking tool for numerically controlled machines and robots, has cutting pin, displacably mounted in housing which is in connection with two energy accumulators |
DE102017128475A1 (en) * | 2017-11-30 | 2019-06-06 | Rattunde Ag | Method for operating a marking head with pressure sensor |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103963533A (en) * | 2014-05-16 | 2014-08-06 | 苏州意玛斯砂光设备有限公司 | Arc positioning assembly of carving machine |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2062124A (en) * | 1979-10-22 | 1981-05-20 | Secretary Industry Brit | Fluid driven oscillator and hammer device |
JPS6091422A (en) * | 1983-10-24 | 1985-05-22 | Mitsubishi Electric Corp | Vibration controller |
JPS60141425A (en) * | 1983-12-27 | 1985-07-26 | Amada Co Ltd | Method of controlling cutting operation of broaching machine |
DE3534920A1 (en) * | 1985-09-30 | 1987-05-21 | Rodenstock Optik G | Device for engraving workpieces, in particular spectacle lenses |
JPS6369700A (en) * | 1986-09-11 | 1988-03-29 | 安藤電気株式会社 | Carving apparatus with pressing-force adjusting mechanism |
DE3637128A1 (en) * | 1986-10-31 | 1988-05-05 | Hilti Ag | DEVICE FOR AUTOMATIC TOOL-SPECIFIC OPERATING DATA SETTING OF AN ELECTRICAL DRIVE DEVICE FOR INTERCHANGEABLE TOOLS |
-
1989
- 1989-06-16 JP JP1154075A patent/JPH0780396B2/en not_active Expired - Lifetime
-
1990
- 1990-06-06 EP EP19900110707 patent/EP0402754A3/en not_active Withdrawn
- 1990-06-13 CA CA002018906A patent/CA2018906A1/en not_active Abandoned
- 1990-06-14 KR KR1019900008762A patent/KR950012966B1/en not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2062124A (en) * | 1979-10-22 | 1981-05-20 | Secretary Industry Brit | Fluid driven oscillator and hammer device |
JPS6091422A (en) * | 1983-10-24 | 1985-05-22 | Mitsubishi Electric Corp | Vibration controller |
JPS60141425A (en) * | 1983-12-27 | 1985-07-26 | Amada Co Ltd | Method of controlling cutting operation of broaching machine |
DE3534920A1 (en) * | 1985-09-30 | 1987-05-21 | Rodenstock Optik G | Device for engraving workpieces, in particular spectacle lenses |
JPS6369700A (en) * | 1986-09-11 | 1988-03-29 | 安藤電気株式会社 | Carving apparatus with pressing-force adjusting mechanism |
DE3637128A1 (en) * | 1986-10-31 | 1988-05-05 | Hilti Ag | DEVICE FOR AUTOMATIC TOOL-SPECIFIC OPERATING DATA SETTING OF AN ELECTRICAL DRIVE DEVICE FOR INTERCHANGEABLE TOOLS |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN, vol. 9, no. 239 (P-391)[1962], 25th September 1985; & JP-A-60 91 422 (MITSUBISHI DENKI K.K.) 22-05-1985 * |
PATENT ABSTRACTS OF JAPAN, vol. 9, no. 303 (M-434)[2026], 30th November 1985; & JP-A-60 141 425 (AMADA K.K.) 26-07-1985 * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1106387A2 (en) * | 1999-11-30 | 2001-06-13 | Ando Electric Co., Ltd. | Marking apparatus with oscillation control system |
EP1106387A3 (en) * | 1999-11-30 | 2004-03-03 | Ando Electric Co., Ltd. | Marking apparatus with oscillation control system |
DE10210630B4 (en) * | 2001-03-23 | 2005-07-07 | Seh Technik Gmbh | Puncturing stamping head |
DE102006022166A1 (en) * | 2006-05-12 | 2007-11-15 | Nc-Automation Gmbh | Cut marking tool for numerically controlled machines and robots, has cutting pin, displacably mounted in housing which is in connection with two energy accumulators |
DE102006022166B4 (en) * | 2006-05-12 | 2008-08-07 | Nc-Automation Gmbh | Scratch marking tool for NC machines and robots |
DE102017128475A1 (en) * | 2017-11-30 | 2019-06-06 | Rattunde Ag | Method for operating a marking head with pressure sensor |
DE102017128475B4 (en) * | 2017-11-30 | 2019-07-04 | Rattunde Ag | Method for operating a marking head with pressure sensor |
Also Published As
Publication number | Publication date |
---|---|
EP0402754A3 (en) | 1991-07-10 |
JPH0319900A (en) | 1991-01-29 |
CA2018906A1 (en) | 1990-12-16 |
JPH0780396B2 (en) | 1995-08-30 |
KR910000393A (en) | 1991-01-29 |
KR950012966B1 (en) | 1995-10-24 |
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