CN107572766B - High-pressure type automatic glass cutting machine and operation method thereof - Google Patents
High-pressure type automatic glass cutting machine and operation method thereof Download PDFInfo
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- CN107572766B CN107572766B CN201710715968.6A CN201710715968A CN107572766B CN 107572766 B CN107572766 B CN 107572766B CN 201710715968 A CN201710715968 A CN 201710715968A CN 107572766 B CN107572766 B CN 107572766B
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- 239000011521 glass Substances 0.000 title claims abstract description 46
- 238000005520 cutting process Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000005284 excitation Effects 0.000 claims abstract description 141
- 229920001971 elastomer Polymers 0.000 claims abstract description 69
- 230000009347 mechanical transmission Effects 0.000 claims abstract description 24
- 239000003990 capacitor Substances 0.000 claims description 22
- 238000007599 discharging Methods 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229910002804 graphite Inorganic materials 0.000 claims description 8
- 239000010439 graphite Substances 0.000 claims description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 230000001960 triggered effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims 2
- 230000035945 sensitivity Effects 0.000 abstract description 8
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 12
- 239000000463 material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 239000005391 art glass Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The invention discloses a high-voltage type automatic glass blanking machine capable of generating high-voltage excitation phenomenon through a high-voltage rod when a cutter head fails, and forming a high-voltage excitation switch signal to control the cutter head to stop and an operation method thereof. The high-pressure glass automatic cutting machine comprises an insulating platform, a conductive rubber plate, a cutter head, a high-pressure rod, a sensing control device, an upper computer and a mechanical transmission device; the operation method of the high-pressure glass automatic blanking machine comprises the following steps: firstly, cutting a cutter head to form an open slot, and then when the distance between the high-voltage rod and the conductive rubber plate in the high-voltage rod is smaller than the high-voltage excitation electric area distance, generating a high-voltage excitation electric phenomenon by the high-voltage rod, and transmitting a high-voltage excitation electric switch signal to a sensing control device by the high-voltage rod; the sensing control device and the upper computer control the cutter head to stop operating. The high-pressure glass automatic cutting machine and the operation method thereof have the advantages of high cutting efficiency, high shutdown sensitivity, capability of well protecting the cutter head of the cutting machine, prolonged service life and wide application range.
Description
Technical Field
The invention relates to the technical field of blanking machines, in particular to a high-pressure type automatic glass blanking machine and an operation method thereof.
Background
It is well known that: most of cutter heads of existing glass cutting machines in the market are assembled on a cutter frame main body, and the cutting operation is finished by controlling the trend of the cutter frame main body through a cutting machine control system or manual operation; when the control system is in fault or manual operation is lost, and when the cutter head works at the edge of the glass, the cutter head precision error is caused by long-term work, and the cutter head is deviated from the glass body and then returns to the glass body, the cutter head frequently collides with glass to be cut, and the cutter head is damaged.
The process of striking the cutter when the prior glass cutting machine is in fault or abnormal operation is shown in figure 1. When the cutter head is separated from the glass body from the position A and then returns to the glass body from the position B, the cutter collision phenomenon is very easy to occur in the cutter returning process due to the existence of the height difference between the processed glass and the glass before processing.
Most of cutter head protection devices equipped for the existing glass cutting machine are mechanical, and although the cutter head can be effectively protected, the cutter head protection device can damage glass to a certain extent; and when the tool rest main body works at a high speed, the clamping phenomenon often occurs, so that the production efficiency is influenced, and the running speed of the tool rest main body is limited to a great extent, so that the prior technical problem is necessarily overcome.
Disclosure of Invention
The invention aims to solve the technical problem of providing the high-pressure type automatic glass cutting machine which has the advantages of simple structure, high cutting efficiency, high shutdown sensitivity, capability of well protecting the cutter head of the cutting machine, prolonged service life and wide application range.
The technical scheme adopted for solving the technical problems is as follows: the high-pressure type automatic glass cutting machine comprises an insulating platform, a conductive rubber plate, a cutter head, a high-pressure rod, a sensing control device, an upper computer and a mechanical transmission device, wherein the conductive rubber plate is positioned on the upper surface of the insulating platform, and the cutter head is positioned above the conductive rubber plate;
The high-voltage rod is fixedly arranged on one side of the cutter head; the high-voltage rod is electrically connected with the sensing control device and an external power supply through wires respectively, and the external power supply transmits forward voltage to the high-voltage rod; the conductive rubber plate is connected with an external power supply through a circuit, and the external power supply transmits negative voltage to the conductive rubber plate or the conductive rubber plate is grounded;
The sensing control device is electrically connected with the upper computer, the upper computer is electrically connected with the mechanical transmission device, and the mechanical transmission device is in transmission connection with the cutter head;
The high-voltage rod is used for generating high-voltage excitation when the distance between the high-voltage rod and the conductive rubber plate is smaller than the high-voltage excitation area distance, namely the high-voltage rod and the conductive rubber plate are electrified in a certain distance due to the piezoelectric effect, so that a high-voltage excitation switch signal is generated and sent to the sensing control device; the sensing control device is used for detecting high-voltage excitation generated by the high-voltage rod, converting the high-voltage excitation into a control signal and sending the control signal to the upper computer;
The upper computer is used for controlling the starting or braking of the mechanical transmission device so as to control the operation of the cutter head.
Specifically, the sensing control device comprises a first optical coupler isolator, an analog capacitance switch circuit, a singlechip, a high-voltage excitation electric response protection circuit and a second optical coupler isolator;
the first optocoupler isolator, the analog capacitance switch circuit, the singlechip, the high-voltage excitation response protection circuit and the second optocoupler isolator are electrically connected through wires in sequence;
The first optocoupler isolator is used for transmitting a high-voltage excitation signal generated by the high-voltage rod to the analog capacitance switch circuit;
The analog capacitance switch circuit is used for charging when receiving a high-voltage excitation signal;
The singlechip is used for detecting the charging time of the analog capacitance switch circuit, and generating a response signal according to the charging time by detecting the charging time of the analog capacitance switch circuit and sending the response signal to the high-voltage excitation response protection circuit;
the high-voltage excitation response protection circuit;
the second optocoupler isolator is used for transmitting a control signal to the upper computer.
Preferably, the analog capacitance switch circuit includes a capacitance charging resistor R, a capacitance discharging switch S1, a stray capacitance C1 and an analog touch capacitance C2;
The capacitor charging resistor R is connected with the capacitor discharging switch S1 in series, and the capacitor discharging switch S1 is connected with the stray capacitor C1 in parallel to be grounded; the stray capacitance C1 is connected with the analog touch capacitance C2 in parallel, the stray capacitance C1 is fixedly connected with the analog capacitance switch circuit, and the analog touch capacitance C2 is triggered by a high-voltage excitation switch signal to be connected with the analog capacitance switch circuit.
Preferably, the conductive rubber plate is made of graphite nickel-plated silicon-filled rubber or graphite silicon-filled rubber.
Preferably, the high-voltage rod adopts an engine ignition device or a high-voltage excitation device.
Further, the voltage supplied by the external power supply to the high voltage rod is less than or equal to 36V.
According to the high-voltage type automatic glass cutting machine, when the distance between the high-voltage rod and the conductive rubber plate is smaller than the high-voltage excitation electric area distance, the high-voltage excitation phenomenon is generated, and the cutter head is controlled by the sensing control device and the upper computer to stop operating, so that the cutter head of the cutting machine is effectively and reliably protected from being damaged under the condition that the high-voltage rod does not contact the conductive rubber plate; the device has simple structure, realizes that the device has high material cutting efficiency and high shutdown sensitivity, can realize shutdown operation under the state that the cutter head of the material cutting machine does not touch the conductive rubber plate, well protects the cutter head of the material cutting machine, prolongs the service life, can be applied to similar equipment, and expands the application range.
The invention also provides an operation method of the high-pressure glass automatic cutting machine, which comprises the following steps:
The method comprises the following steps:
step S1, cutting an open slot on a glass body by the cutter head, wherein a high-resistance state is formed between a high-voltage rod and a conductive rubber plate, and a high-voltage excitation interval is formed;
S2, when the distance between the high-voltage rod and the conductive rubber plate is smaller than the high-voltage excitation area distance, the high-voltage rod generates a high-voltage excitation phenomenon, and the high-voltage rod generates a high-voltage excitation switch signal and sends the high-voltage excitation switch signal to the sensing control device;
s3, the sensing control device generates a control signal according to the high-voltage excitation switch signal and sends the control signal to the upper computer;
and S4, the upper computer controls the mechanical transmission device to drive the tool bit to stop operating according to the control signal.
Further, the sensing control device comprises a first optical coupler isolator, an analog capacitance switch circuit, a singlechip, a high-voltage excitation electric response protection circuit and a second optical coupler isolator;
the first optocoupler isolator, the analog capacitance switch circuit, the singlechip, the high-voltage excitation response protection circuit and the second optocoupler isolator are electrically connected through wires in sequence;
the step S3 specifically comprises the following steps:
step 301, a first optocoupler isolator transmits a high-voltage laser switch signal to an analog capacitance switch circuit;
Step 302, when the analog capacitance switch circuit receives the high-voltage excitation signal, charging is carried out;
Step 303, detecting the charging time of the analog capacitance switch circuit by the singlechip, and generating a response signal according to the charging time when the charging time of the analog capacitance switch circuit is detected, and sending the response signal to the high-voltage excitation response protection circuit;
step 304, the high-voltage excitation response protection circuit generates a control signal according to the response signal and sends the control signal to the second opto-coupler isolator;
step 305, the second optocoupler isolator transmits the control signal to the host computer.
According to the operating method of the high-voltage type glass automatic blanking machine, in the step S2, when the distance between the high-voltage rod and the conductive rubber plate is smaller than the high-voltage excitation area distance, the high-voltage rod generates a high-voltage excitation phenomenon, and the high-voltage rod generates a high-voltage excitation switch signal and sends the high-voltage excitation switch signal to the sensing control device; the sensing control device and the upper computer control the cutter head to stop running, so that the cutter head of the blanking machine is effectively and reliably protected from being damaged under the condition that the high-voltage rod is not contacted with the conductive rubber plate; the method has the advantages of high cutting efficiency and high shutdown sensitivity, can realize shutdown operation under the condition that the cutter head of the cutting machine does not touch the conductive rubber plate, well protects the cutter head of the cutting machine, prolongs the service life, can be applied to similar equipment, and expands the application range.
Drawings
FIG. 1 is a schematic view of a prior art glass cutting machine;
FIG. 2 is a schematic drawing of a high-pressure glass automatic blanking machine according to the present invention;
FIG. 3 is a block diagram of a high pressure glass automatic blanking machine according to the present invention;
FIG. 4 is a block diagram of a sensor control device;
FIG. 5 is a schematic diagram of an analog capacitance switch circuit charge without an analog touch capacitance;
FIG. 6 is a schematic diagram of an analog capacitance switch circuit charge with an analog touch capacitance;
FIG. 7 is a schematic diagram of the charge time (V-T) of an analog capacitive switch circuit;
FIG. 8 is a flow chart of a method of operating a high pressure glass automatic blanking machine according to the present invention;
fig. 9 is a front view of the glass body.
The figures indicate: 1-an insulating platform, 2-a conductive rubber plate, 3-a cutter head, 4-a high-voltage rod, 5-a sensing control device, 501-a first optocoupler isolator, 502-an analog capacitance switch circuit, 503-a singlechip, 504-a high-voltage excitation electric response protection circuit and 505-a second optocoupler isolator; 6-upper computer, 7-mechanical transmission device, 8-glass body and 9-open slot;
R: a capacitor charging resistor; s1: a capacitor discharge switch; c1: a stray capacitance;
C2: simulating a touch capacitance; v: a charging voltage; vth: rated charge voltage; t: charging time;
The charging time of the analog capacitance switch circuit is in a C1 state;
C1+C2 and the charge time difference of the analog capacitance switch circuit in the state of C1;
c: simulating a charging curve of the capacitive switch circuit in a C1 state;
d: and simulating a charging curve of the capacitive switch circuit in a C1+C2 state.
Detailed Description
The utility model will be further described with reference to the drawings and examples.
As shown in fig. 1 to 9, the high-voltage type automatic glass cutting machine comprises an insulating platform 1, a conductive rubber plate 2, a cutter head 3, a high-voltage rod 4, a sensing control device 5, an upper computer 6 and a mechanical transmission device 7, wherein the conductive rubber plate 2 is positioned on the upper surface of the insulating platform 1, and the cutter head 3 is positioned above the conductive rubber plate 2;
The high-voltage rod 4 is fixedly arranged on one side of the cutter head 3; the high-voltage rod 4 is electrically connected with the sensing control device 5 and an external power supply through leads respectively, and the external power supply transmits forward voltage to the high-voltage rod 4; the conductive rubber plate 2 is connected with an external power supply through a circuit, and the external power supply transmits negative voltage to the conductive rubber plate 2, or the conductive rubber plate 2 is grounded;
The sensing control device 5 is electrically connected with the upper computer 6, the upper computer 6 is electrically connected with the mechanical transmission device 7, and the mechanical transmission device 7 is in transmission connection with the cutter head 3;
the high-voltage rod 4 is used for generating high-voltage excitation electricity when the distance between the high-voltage rod 4 and the conductive rubber plate 2 is smaller than the high-voltage excitation electricity area distance, generating a high-voltage excitation electricity switch signal and sending the high-voltage excitation electricity switch signal to the sensing control device 5;
The sensing control device 5 is used for detecting high-voltage excitation electricity generated by the high-voltage rod 4, converting the high-voltage excitation electricity into a control signal and sending the control signal to the upper computer 6;
The upper computer 6 is used for controlling the mechanical transmission device 7 to start or brake so as to control the operation of the cutter head 3.
The high voltage excitation area distance is as follows: the high voltage rod 4 and the conductive rubber plate 2 cause the surface of the conductive rubber plate 2 to be charged within a certain distance due to the piezoelectric effect, thereby generating a high voltage excitation interval.
During the working process:
When the blanking machine is in normal operation, the high-voltage rod 4 runs along with the cutter head 3, and when the high-voltage rod 4 runs along with the cutter head 3 to the edge of the blanking glass body 8 and the blanking machine is in fault or abnormal due to other reasons, the distance between the high-voltage rod 4 and the conductive rubber plate 2 is smaller than the high-voltage excitation area distance, namely, a high-voltage excitation phenomenon is generated, and a high-voltage excitation switch signal is formed; the sensing control device 5 detects high-voltage excitation electricity generated by the high-voltage rod 4, converts the high-voltage excitation electricity into a control signal and sends the control signal to the upper computer 6; the upper computer 6 generates a stop signal and inputs the stop signal to the mechanical transmission device 7 to execute stop operation, so that the aim of protecting the cutter head 3 is fulfilled.
In summary, according to the high-voltage type automatic glass cutting machine disclosed by the invention, when the distance between the high-voltage rod and the conductive rubber plate is smaller than the high-voltage excitation area distance, a high-voltage excitation phenomenon is generated, and the cutter head is controlled by the sensing control device and the upper computer to stop operating, so that the cutter head of the cutting machine is effectively and reliably protected from being damaged under the condition that the high-voltage rod does not contact the conductive rubber plate; the device has simple structure, realizes that the device has high material cutting efficiency and high shutdown sensitivity, can realize shutdown operation under the state that the cutter head of the material cutting machine does not touch the conductive rubber plate, well protects the cutter head of the material cutting machine, prolongs the service life, can be applied to similar equipment, and expands the application range.
The sensing control device 5 is mainly used for detecting high-voltage excitation electricity generated by the high-voltage rod 4, converting the high-voltage excitation electricity into a control signal and sending the control signal to the upper computer 6; in order to make the structure simple and ensure control accuracy, one preferable mode is: the sensing control device 5 comprises a first opto-coupler isolator 501, an analog capacitance switch circuit 502, a singlechip 503, a high-voltage excitation electric response protection circuit 504 and a second opto-coupler isolator 505;
The first optocoupler isolator 501, the analog capacitance switch circuit 502, the singlechip 503, the high-voltage excitation electric response protection circuit 504 and the second optocoupler isolator 505 are electrically connected through wires in sequence;
The first optocoupler isolator 501 is configured to transmit a high-voltage excitation signal generated by the high-voltage rod 4 to the analog capacitance switch circuit 502;
the analog capacitance switch circuit 502 is configured to charge when receiving a high voltage excitation signal;
The singlechip 503 is configured to detect a charging time of the analog capacitance switch circuit 502, and generate a response signal according to the charging time by detecting the charging time of the analog capacitance switch circuit 502, and send the response signal to the high-voltage excitation response protection circuit 504;
The high voltage electro-shock response protection circuit 504 is configured to convert the response signal into a control signal, and send the control signal to the second opto-isolator 505;
The second optocoupler 505 is configured to transmit a control signal to the host computer 6.
The sensing control device 5 adopts a structure that the first opto-coupler isolator 501, the analog capacitance switch circuit 502, the singlechip 503, the high-voltage excitation response protection circuit 504 and the second opto-coupler isolator 505 are electrically connected through wires in sequence, so that signal interference can be effectively avoided, sensitivity is improved, and running stability of the device is guaranteed.
The main function of the analog capacitance switch circuit 502 is to charge when receiving a high voltage excitation signal; in order to simplify the structure, facilitate manufacturing and reduce cost; one preferred mode is as follows: as shown in fig. 6, the analog capacitance switching circuit 502 includes a capacitance charging resistor R, a capacitance discharging switch S1, a stray capacitance C1, and an analog touch capacitance C2;
The capacitor charging resistor R is connected with the capacitor discharging switch S1 in series, and the capacitor discharging switch S1 is connected with the stray capacitor C1 in parallel to be grounded; the stray capacitance C1 is connected in parallel with the analog touch capacitance C2, the stray capacitance C1 is fixedly connected to the analog capacitance switch circuit 502, and the analog touch capacitance C2 is triggered by a high-voltage excitation switch signal to be connected to the analog capacitance switch circuit 502.
In a specific working process, the capacitor discharging switch S1 is turned on, the stray capacitor C1 is discharged, the capacitor discharging switch S1 is turned off, the stray capacitor C1 is charged, and the analog touch capacitor C2 is triggered by a high-voltage excitation switch signal to be connected into the analog capacitor switching circuit 502, which means that: when the capacitance discharging switch S1 is turned off, the distance between the high-voltage rod 4 and the conductive rubber plate 2 is smaller than the high-voltage excitation distance, high-voltage excitation is generated, the simulated touch capacitor C2 is charged, and when the capacitance discharging switch S1 is turned on, the distance between the high-voltage rod 4 and the conductive rubber plate 2 is smaller than the high-voltage excitation distance, high-voltage excitation is generated, and the simulated touch capacitor C2 is discharged.
In order to reduce the manufacturing cost, it is preferable that the conductive rubber sheet 2 is made of graphite nickel-plated silicone rubber or graphite silicone rubber. The high-voltage rod 4 adopts an engine ignition device or a high-voltage excitation device.
In order to reduce the occurrence rate of safety accidents and ensure the safety of operators, the voltage transmitted by an external power supply to the high-voltage rod 4 is less than or equal to 36V.
The invention also provides an operation method of the high-pressure glass automatic blanking machine, which comprises the following steps:
s1, cutting an open slot 9 on a glass body 8 by the cutter head 3, wherein a high-resistance state is formed between a high-voltage rod 4 and a conductive rubber plate 2, and a high-voltage excitation area distance is formed;
S2, when the distance between the high-voltage rod 4 and the conductive rubber plate 2 is smaller than the high-voltage excitation area distance, the high-voltage rod 4 generates a high-voltage excitation phenomenon, and the high-voltage rod 4 generates a high-voltage excitation switch signal and sends the high-voltage excitation switch signal to the sensing control device 5;
s3, the sensing control device 5 generates a control signal according to the high-voltage excitation switch signal and sends the control signal to the upper computer 6;
and S4, the upper computer 6 controls the mechanical transmission device 7 to drive the tool bit 3 to stop operating according to the control signal.
In step S1, the cutter head 3 opens an open slot 9 in the glass body 8, and the cutter head 3 works normally.
In step S2, when the distance between the high voltage rod 4 and the conductive rubber plate 2 is smaller than the high voltage excitation distance, the high voltage rod 4 generates a high voltage excitation phenomenon, and the high voltage rod 4 generates a high voltage excitation switch signal and sends the high voltage excitation switch signal to the sensing control device 5; namely, when the work of the cutter head 3 is abnormal, a control signal is produced by high-voltage excitation generated by the high-voltage rod 4.
In the steps S3 and S4, the sensing control device 5 generates a control signal according to the high-voltage excitation switch signal and sends the control signal to the upper computer 6; the upper computer 6 controls the mechanical transmission device 7 to drive the tool bit 3 to stop operating according to the control signal. Thereby realizing that the cutter head 3 is controlled to stop by the control signal.
In the operation method of the high-voltage glass automatic cutting machine, in the step S2, when the distance between the high-voltage rod 4 and the conductive rubber plate 2 is smaller than the high-voltage excitation distance, the high-voltage rod 4 generates a high-voltage excitation phenomenon, and the high-voltage rod 4 generates a high-voltage excitation switch signal and sends the high-voltage excitation switch signal to the sensing control device 5; the sensing control device 5 and the upper computer 6 control the cutter head 3 to stop running, so that the cutter head of the blanking machine is effectively and reliably protected from being damaged under the condition that the high-voltage rod 4 does not contact the conductive rubber plate 2; the method has the advantages of high cutting efficiency and high shutdown sensitivity, can realize shutdown operation under the condition that the cutter head of the cutting machine does not touch the conductive rubber plate, well protects the cutter head of the cutting machine, prolongs the service life, can be applied to similar equipment, and expands the application range.
Specifically, the sensing control device 5 includes a first opto-isolator 501, an analog capacitance switch circuit 502, a singlechip 503, a high-voltage excitation response protection circuit 504, and a second opto-isolator 505;
The first optocoupler isolator 501, the analog capacitance switch circuit 502, the singlechip 503, the high-voltage excitation electric response protection circuit 504 and the second optocoupler isolator 505 are electrically connected through wires in sequence;
the step S3 specifically comprises the following steps:
step 301, a first optocoupler isolator 501 transmits a high voltage excitation switching signal to an analog capacitance switching circuit 502;
Step 302, when the analog capacitance switch circuit 502 receives the high voltage excitation signal, charging is performed;
step 303, detecting the charging time of the analog capacitance switch circuit 502 by the singlechip 503, and generating a response signal according to the charging time when the charging time of the analog capacitance switch circuit 502 is detected, and sending the response signal to the high-voltage excitation response protection circuit 504;
Step 304, the high voltage excitation response protection circuit 504 generates a control signal according to the response signal, and sends the control signal to the second opto-isolator 505;
step 305. The second optocoupler isolator 505 transmits the control signal to the host computer 6.
In step S3, the sensing control device 5 adopts a structure that the first optocoupler isolator 501, the analog capacitance switch circuit 502, the single chip microcomputer 503, the high voltage excitation response protection circuit 504 and the second optocoupler isolator 505 are electrically connected by wires in sequence, so that signal interference can be effectively avoided, sensitivity is improved, and running stability of the device is ensured.
Examples
As shown in fig. 1 to 6, a high-voltage type automatic glass cutting machine comprises an insulating platform 1, a conductive rubber plate 2, a cutter head 3, a high-voltage rod 4, a sensing control device 5, an upper computer 6 and a mechanical transmission device 7, wherein the conductive rubber plate 2 is positioned on the upper surface of the insulating platform 1, and the cutter head 3 is positioned above the conductive rubber plate 2;
The high-voltage rod 4 is fixedly arranged on one side of the cutter head 3; the high-voltage rod 4 is electrically connected with the sensing control device 5 and an external power supply through leads respectively, and the external power supply transmits forward voltage to the high-voltage rod 4; the conductive rubber plate 2 is connected with an external power supply through a circuit, and the external power supply transmits negative voltage to the conductive rubber plate 2, or the conductive rubber plate 2 is grounded;
The sensing control device 5 is electrically connected with the upper computer 6, the upper computer 6 is electrically connected with the mechanical transmission device 7, and the mechanical transmission device 7 is in transmission connection with the cutter head 3;
The high-voltage rod 4 is used for generating high-voltage excitation when the distance between the high-voltage rod 4 and the conductive rubber plate 2 is smaller than the high-voltage excitation distance; generating a high-voltage excitation switch signal and sending the high-voltage excitation switch signal to the sensing control device 5;
The sensing control device 5 is used for detecting high-voltage excitation electricity generated by the high-voltage rod 4, converting the high-voltage excitation electricity into a control signal and sending the control signal to the upper computer 6;
The upper computer 6 is used for controlling the mechanical transmission device 7 to start or brake so as to control the operation of the cutter head 3.
The sensing control device 5 comprises a first opto-coupler isolator 501, an analog capacitance switch circuit 502, a singlechip 503, a high-voltage excitation electric response protection circuit 504 and a second opto-coupler isolator 505;
The first optocoupler isolator 501, the analog capacitance switch circuit 502, the singlechip 503, the high-voltage excitation electric response protection circuit 504 and the second optocoupler isolator 505 are electrically connected through wires in sequence;
the first optocoupler isolator 501 is configured to transmit a high-voltage excitation signal generated by the high-voltage rod 4 to the analog capacitance switch circuit 502; the analog capacitance switch circuit 502 is configured to charge when receiving a high voltage excitation signal;
The singlechip 503 is configured to detect a charging time of the analog capacitance switch circuit 502, and generate a response signal according to the charging time by detecting the charging time of the analog capacitance switch circuit 502, and send the response signal to the high-voltage excitation response protection circuit 504;
the high voltage electro-shock response protection circuit 504) is configured to convert the response signal into a control signal, and send the control signal to the second opto-isolator 505; the second optocoupler 505 is configured to transmit a control signal to the host computer 6.
The analog capacitance switch circuit 502 includes a stray capacitance C1 and an analog touch capacitance C2, the stray capacitance C1 is connected in parallel with the analog touch capacitance C2, the stray capacitance C1 is fixedly connected to the analog capacitance switch circuit 502, and the analog touch capacitance C2 is triggered by the high-voltage excitation switch signal to be connected to the analog capacitance switch circuit 502. The conductive rubber plate 2 is made of graphite nickel-plated silicon-filled rubber or graphite silicon-filled rubber. The high-voltage rod 4 adopts an engine ignition device or a high-voltage excitation device. The voltage supplied from the external power source to the high voltage rod 4 is less than or equal to 36V.
The high-pressure glass automatic blanking machine comprises the following steps in the working process:
1. The cutter head 3 is provided with an opening groove 9 on the glass body 8, and a high-voltage excitation electric distance is formed between the high-voltage rod 4 and the conductive rubber plate 2 in a high-resistance state;
2. when the distance between the high-voltage rod 4 and the conductive rubber plate 2 is smaller than the high-voltage excitation area distance, a high-voltage excitation phenomenon is generated, and the high-voltage rod 4 generates a high-voltage excitation switch signal and sends the high-voltage excitation switch signal to the sensing control device 5;
3. the sensing control device 5 carries out signal processing on the high-voltage excitation switch signal, generates a control signal and sends the control signal to the upper computer 6;
3.1 the first opto-isolator 501 transmits the high voltage switching signal to the analog capacitive switching circuit 502;
3.2 analog capacitive switching circuit 502 charges when receiving a high voltage excitation signal;
3.3 the singlechip 503 detects the charging time of the analog capacitance switch circuit 502, and when detecting the charging time of the analog capacitance switch circuit 502, generates a response signal according to the charging time and sends the response signal to the high-voltage excitation response protection circuit 504;
3.4 the high voltage excitation response protection circuit 504 generates a control signal according to the response signal, and sends the control signal to the second opto-isolator 505;
3.5 the second opto-isolator 505 transmits the control signal to the upper computer 6.
4. The upper computer 6 controls the mechanical transmission device 7 to drive the tool bit 3 to stop operating according to the control signal.
When the high-voltage automatic glass blanking machine is used, the blanking machine is in normal operation, the high-voltage rod 4 runs along with the cutter head 3, when the high-voltage rod 4 runs along with the cutter head 3 to the edge of the blanked glass body 8, and when the blanking machine is in fault or abnormal due to other reasons, the distance between the high-voltage rod 4 and the conductive rubber plate 2 is smaller than the high-voltage excitation area distance, namely, a high-voltage excitation phenomenon is generated, and a high-voltage excitation switch signal is formed; the high-voltage excitation switch signal is input to the analog capacitance switch circuit 502 by the first opto-coupler isolator 501, the analog touch capacitance C2 is triggered to be connected to the analog capacitance switch circuit 502, at this time, the charging capacitance of the analog capacitance switch circuit 502 is the stray capacitance C1 and the analog touch capacitance C2, the charging time required by the singlechip 503 to detect the stray capacitance C1 and the analog touch capacitance C2 is t1+t2, the generation of the high-voltage excitation phenomenon is identified, and then the control signal output by the high-voltage excitation response protection circuit 504 is input to the upper computer 6 through the second opto-coupler isolator 505, the shutdown signal generated by the upper computer 6 is input to the mechanical transmission device 7 to execute shutdown operation, so that the purpose of protecting the tool bit 3 is realized.
Claims (3)
1. High pressure formula glass automatic cutout machine, its characterized in that: the high-voltage power supply device comprises an insulation platform (1), a conductive rubber plate (2), a cutter head (3), a high-voltage rod (4), a sensing control device (5), an upper computer (6) and a mechanical transmission device (7), wherein the conductive rubber plate (2) is positioned on the upper surface of the insulation platform (1), and the cutter head (3) is positioned above the conductive rubber plate (2); the high-voltage rod (4) is fixedly arranged on one side of the cutter head (3); the high-voltage rod (4) is electrically connected with the sensing control device (5) and an external power supply through leads respectively, and the external power supply transmits forward voltage to the high-voltage rod (4); the conductive rubber plate (2) is connected with an external power supply through a circuit, and the external power supply transmits negative voltage to the conductive rubber plate (2), or the conductive rubber plate (2) is grounded; the sensing control device (5) is electrically connected with the upper computer (6), the upper computer (6) is electrically connected with the mechanical transmission device (7), and the mechanical transmission device (7) is in transmission connection with the cutter head (3); the high-voltage rod (4) is used for generating a high-voltage excitation switch signal and sending the high-voltage excitation switch signal to the sensing control device (5) when the distance between the high-voltage rod (4) and the conductive rubber plate (2) is smaller than the high-voltage excitation area distance; the sensing control device (5) is used for detecting high-voltage excitation generated by the high-voltage rod (4) and converting the high-voltage excitation into a control signal to be sent to the upper computer (6); the upper computer (6) is used for controlling the starting or braking of the mechanical transmission device (7) so as to control the operation of the cutter head (3);
The sensing control device (5) comprises a first opto-coupler isolator (501), an analog capacitance switch circuit (502), a singlechip (503), a high-voltage excitation electric response protection circuit (504) and a second opto-coupler isolator (505); the first optocoupler isolator (501), the analog capacitance switch circuit (502), the singlechip (503), the high-voltage excitation electric response protection circuit (504) and the second optocoupler isolator (505) are electrically connected through wires in sequence; the first optocoupler isolator (501) is used for transmitting a high-voltage laser signal generated by the high-voltage rod (4) to the analog capacitance switch circuit (502); the analog capacitance switch circuit (502) is used for charging when receiving a high-voltage excitation signal; the singlechip (503) is used for detecting the charging time of the analog capacitance switch circuit (502), and generating a response signal according to the charging time by detecting the charging time of the analog capacitance switch circuit (502) and sending the response signal to the high-voltage excitation response protection circuit (504); the high-voltage electro-shock response protection circuit (504) is used for converting a response signal into a control signal and sending the control signal to the second opto-coupler isolator (505); the second optocoupler isolator (505) is used for transmitting a control signal to the upper computer (6);
The analog capacitance switch circuit (502) comprises a capacitance charging resistor R, a capacitance discharging switch S1, a stray capacitance C1 and an analog touch capacitance C2; the capacitor charging resistor R is connected with the capacitor discharging switch S1 in series, and the capacitor discharging switch S1 is connected with the stray capacitor C1 in parallel to be grounded; the stray capacitance C1 is connected with the analog touch capacitance C2 in parallel, the stray capacitance C1 is fixedly connected with the analog capacitance switch circuit (502), and the analog touch capacitance C2 is triggered by a high-voltage excitation switch signal to be connected with the analog capacitance switch circuit (502);
the conductive rubber plate (2) is made of graphite nickel-plated silicon-filled rubber or graphite silicon-filled rubber;
the high-voltage rod (4) adopts an engine ignition device or a high-voltage excitation device;
the voltage supplied by the external power supply to the high-voltage rod (4) is less than or equal to 36V.
2. The method of operating a high pressure glass automatic blanking machine according to claim 1, comprising the steps of: s1, cutting an open slot (9) on a glass body (8) by the cutter head (3), wherein a high-resistance state is formed between a high-voltage rod (4) and a conductive rubber plate (2), and a high-voltage excitation interval is formed;
S2, when the distance between the high-voltage rod (4) and the conductive rubber plate (2) is smaller than the high-voltage excitation area distance, the high-voltage rod (4) generates a high-voltage excitation phenomenon, and the high-voltage rod (4) generates a high-voltage excitation switch signal and sends the high-voltage excitation switch signal to the sensing control device (5);
S3, the sensing control device (5) generates a control signal according to the high-voltage excitation switch signal and sends the control signal to the upper computer (6);
S4, the upper computer (6) controls the mechanical transmission device (7) to drive the tool bit (3) to stop operating according to the control signal.
3. The method of operating a high pressure glass automatic blanking machine according to claim 2, wherein: the sensing control device (5) comprises a first opto-coupler isolator (501), an analog capacitance switch circuit (502), a singlechip (503), a high-voltage excitation electric response protection circuit (504) and a second opto-coupler isolator (505); the first optocoupler isolator (501), the analog capacitance switch circuit (502), the singlechip (503), the high-voltage excitation electric response protection circuit (504) and the second optocoupler isolator (505) are electrically connected through wires in sequence; the step S3 specifically comprises the following steps:
Step 301, a first optocoupler isolator (501) transmits a high-voltage excitation switching signal to an analog capacitance switching circuit (502);
Step 302, the analog capacitance switch circuit (502) charges when receiving a high-voltage excitation signal;
Step 303, detecting the charging time of the analog capacitance switch circuit (502) by the singlechip (503), and generating a response signal according to the charging time when the charging time of the analog capacitance switch circuit (502) is detected, and sending the response signal to the high-voltage excitation response protection circuit (504);
Step 304, the high-voltage excitation response protection circuit (504) generates a control signal according to the response signal, and sends the control signal to the second opto-coupler isolator (505);
step 305. The second optocoupler isolator (505) transmits the control signal to the host computer (6).
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