CN207105981U - A kind of stepping carving machine control device based on ARM single-chip microcomputers - Google Patents

A kind of stepping carving machine control device based on ARM single-chip microcomputers Download PDF

Info

Publication number
CN207105981U
CN207105981U CN201621390964.2U CN201621390964U CN207105981U CN 207105981 U CN207105981 U CN 207105981U CN 201621390964 U CN201621390964 U CN 201621390964U CN 207105981 U CN207105981 U CN 207105981U
Authority
CN
China
Prior art keywords
chip microcomputers
arm single
interface
stepping
circuit
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.)
Expired - Fee Related
Application number
CN201621390964.2U
Other languages
Chinese (zh)
Inventor
滕健
滕福林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Reclamation Cow Electronic Technology Co Ltd
Original Assignee
Nanjing Reclamation Cow Electronic Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nanjing Reclamation Cow Electronic Technology Co Ltd filed Critical Nanjing Reclamation Cow Electronic Technology Co Ltd
Priority to CN201621390964.2U priority Critical patent/CN207105981U/en
Application granted granted Critical
Publication of CN207105981U publication Critical patent/CN207105981U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Control By Computers (AREA)

Abstract

The utility model discloses a kind of stepping carving machine control device based on ARM single-chip microcomputers, including ARM single-chip microcomputers, driving power amplifying circuit, X-axis stepper motor, y-axis stepper motor, current amplification circuit and operator lift roll setting control electromagnet, the reflective photoelectric sensor, limit switch and infrared LED are all connected with the ARM single-chip microcomputers, the ARM single-chip microcomputers connect the X-axis stepper motor and y-axis stepper motor by the driving power amplifying circuit, and the ARM single-chip microcomputers connect the operator lift roll setting by the current amplification circuit and control electromagnet.Stepping carving machine control device of the present utility model based on ARM single-chip microcomputers uses control master chip of the ARM single-chip microcomputers as stepping carving machine, cost is cheap, performance and function can greatly promote, Interface Expanding is strong, motor driving power amplifying circuit is stable, and operator lift setting pressure control electric current amplifying circuit is stable.

Description

A kind of stepping carving machine control device based on ARM single-chip microcomputers
Technical field
The utility model belongs to the technical field of plane numerical controlled Machine-Tool Control, and in particular to a kind of based on ARM single-chip microcomputers Stepping carving machine control device.
Background technology
Advertising equipment is as important component in Digit Control Machine Tool, and species is more and more, and application is also more and more wider.Extensively Accusing with the fastest developing speed in equipment has the equipment such as carving machine, wide format printer, laser cutting machine, scroll machine, spray drawing machine.
Carving machine includes coil paper transmission mechanism, the operator feed mechanism for carrying icking tool or painting pen, operator lift setting pressure control Circuit, INTERPOLATION CONTROL OF PULSE device, Driving mechanism driver and parameter testing operation interface processed.Made in stepping carving machine using stepper motor For the executive component of driving.At present mainly using 51 single-chip microcomputers as control core chip, and circuit is complicated, and cost is high, failure Rate is high.
The commonly used digital signal processor of motor driver is designed, but its application scalability is not strong.ARM chip latest developments gesture For head than more aggressive, it not only has stronger data operation ability, has been also equipped with very powerful application extension ability, such as more Kind and the hardware interface of dataphone, compatible a variety of external memory storages, compatible a variety of display devices etc..Meanwhile ARM monolithics The price of machine is greatly reduced well below digital signal processor, design cost.
Existing stepping carving machine product is the most high-end with tri- brands of GRAPHTEC, MIMAKI, ROLAND, its product system Function embodied in row is concentrated mainly on external interface variation, external memory storage uses USB flash disk and SD card, display interface a variety of Optional, the manual/auto optional, computer software of edge profile cutting that patrols carries wedge angle compensation function.And examined from machine technical security Consider, the control circuit that its machine uses is but very complicated, and machine cost and price are all higher.
Therefore, it is necessary to it is a kind of it is new based on the stepping carving machine control device of ARM single-chip microcomputers to solve the above problems.
Utility model content
Purpose of utility model:The problem of in order to overcome prior art to exist, the utility model provide one kind and are based on ARM monolithics The stepping carving machine control device of machine.
In order to solve the above technical problems, the stepping carving machine control device of the present utility model based on ARM single-chip microcomputers is adopted Technical scheme is:
A kind of stepping carving machine control device based on ARM single-chip microcomputers, including ARM single-chip microcomputers, driving power amplifying circuit, X-axis stepper motor, y-axis stepper motor, current amplification circuit and operator lift roll setting control electromagnet, in addition to reflection type optical fax Sensor, limit switch and/or infrared LED, the reflective photoelectric sensor, limit switch and/or infrared LED are all connected with described ARM single-chip microcomputers, the ARM single-chip microcomputers connect the X-axis stepper motor and Y-axis stepping electricity by the driving power amplifying circuit Machine, the ARM single-chip microcomputers connect the operator lift roll setting by the current amplification circuit and control electromagnet.
Further, in addition to the first isolation circuit, camera, reflective photoelectric sensor, limit switch and/or red Outer LED, the camera, reflective photoelectric sensor, limit switch and/or infrared LED pass through first isolation circuit Connect the ARM single-chip microcomputers.Wherein, limit switch is used for the position for detecting the end wall panel of carving machine two.Red-light LED control circuit For patrolling manually in edge profile cutting, reflective photoelectric sensor control circuit is used for automatic edge identification profile cut and segmented certainly It is dynamic to patrol in edge profile cutting.Camera is another auxiliary equipment for being used for automatic edge identification profile cut, can substitute reflection-type Photoelectric sensor.
Further, in addition to LCD12232 interfaces, 4*8 module displays interface, 4*16 module displays interface, section Code display interface device, ILI9328 color screens interface, XPT2406 touch screen interfaces and/or expansible 4*4 keyboard operations interface, are also wrapped Signal conditioning circuit is included, the LCD12232 interfaces, 4*8 module displays interface, 4*16 module displays interface, segment encode are shown Device interface, ILI9328 color screens interface, XPT2406 touch screen interfaces and/or expansible 4*4 keyboard operations interface are by described Signal conditioning circuit connects the ARM single-chip microcomputers.
Further, in addition to decoupling circuit and/or antistatic circuit, in addition to RS232 interface and/or USB interface, The ARM single-chip microcomputers connect RS232 interface and/or USB interface by decoupling circuit and/or antistatic circuit.
Further, in addition to USB flash disk interface and/or SD card interface, the ARM single-chip microcomputers and USB flash disk interface and/or SD Communicating circuit is provided between card interface.The concrete model of communicating circuit is CH375B.
Further, the current amplification circuit is H bridge current amplification circuits.The particular type of H bridge current amplification circuits Number it is L6202 or L6225D.
Further, the current amplification circuit includes L6225D chips, the L6225D chips include IN1A ends, IN2A ends, OUT1A ends, SENSEEA ends, GND ends, ENA ends, VCP ends, VSA ends, OUT2A ends and VBOOT ends;The IN1A ends By resistance R49 connection PWM ends, the IN2A ends connect OUT1-U13 by resistance R50 connection DIR ends, the OUT1A ends End, the SENSEEA ends and GND ends are grounded, and the ENA ends are by resistance R51 connection 3.3V voltage ends and pass through electric capacity C31 Ground connection, the VCP ends connection VCP-U13 ends, the OUT2A ends connection OUT2-U13 ends, the VSA ends connection+12V voltages End, the VBOOT ends connection VBOOT-U13 ends.Wherein, the concrete model of ARM single-chip microcomputers be STM32F103ZET6, STM32F107VCT6, STM32F107R8T6 or STM32F207ZGT6.
Further, the VCP-U13 ends are led to by electric capacity C34 connection VCP-U13-1 ends, the VCP-U13-1 ends Resistance R52 connection VBOOT-U13-1 ends are crossed, the VBOOT-U13-1 ends and VBOOT-U13 ends are connecting diode D3 just respectively Pole and the negative pole ,+12V voltage ends and VBOOT-U13-1 ends connect diode D4 positive pole and negative pole respectively, described VBOOT-U13 ends are grounded by+12V the voltage ends ,+12V voltage ends electric capacity C33 connections Suo Shu by electric capacity C32.
Further, the OUT1-U13 ends connect the OUT2- by the resistance R53 being connected in series with electric capacity C35 U13 ends, diode D1 positive pole and negative pole are grounded respectively to be connect respectively with the OUT1-U13 ends, diode D2 positive pole and negative pole Ground and the OUT2-U13 ends, the OUT1-U13 ends are passed through by inductance FB3 connection FORCE1 ends, the OUT2-U13 ends Inductance FB4 connection FORCE2 ends.
Beneficial effect:Stepping carving machine control device of the present utility model based on ARM single-chip microcomputers is made using ARM single-chip microcomputers For the control master chip of stepping carving machine, cost is cheap, and performance and function can greatly promote, and Interface Expanding is strong, and motor drives Dynamic power amplification circuit is stable, and operator lift setting pressure control electric current amplifying circuit is stable.
Brief description of the drawings
Fig. 1 is the structural representation of the stepping carving machine control device of the present utility model based on ARM single-chip microcomputers.
Fig. 2 is the schematic diagram of operator lift setting pressure control electric current amplifying circuit.
Embodiment
Refer to shown in Fig. 1 and Fig. 2, the stepping carving machine control device of the present utility model based on ARM single-chip microcomputers, be based on The stepping carving machine control device of ARM single-chip microcomputers, including ARM single-chip microcomputers, driving power amplifying circuit, X-axis stepper motor, Y-axis Stepper motor, limit switch, reflective photoelectric sensor, current amplification circuit, operator lift roll setting control electromagnet, reflection type optical Electric transducer, limit switch and infrared LED are all connected with ARM single-chip microcomputers, and ARM single-chip microcomputers connect X by driving power amplifying circuit Shaft step motor and y-axis stepper motor, ARM single-chip microcomputers connect operator lift roll setting by current amplification circuit and control electromagnet.
Also include the first isolation circuit, camera, reflective photoelectric sensor, limit switch and/or infrared LED, image Head, reflective photoelectric sensor, limit switch and/or infrared LED connect ARM single-chip microcomputers by the first isolation circuit.Wherein, Limit switch is used for the position for detecting the end wall panel of carving machine two.Red-light LED control circuit is used to patrol manually in edge profile cutting, instead Emitting photoelectric sensor control circuit is used in automatic edge identification profile cut and segmented automatic edge identification profile cut.Camera is Another kind is used for the auxiliary equipment of automatic edge identification profile cut, can substitute reflective photoelectric sensor.
DCDC translation circuits are provided between ARM single-chip microcomputers and 5V power interfaces.5V external power supplys convert electricity by DCDC Road produces 3.3V voltages.36V provides power supply for driving power amplifying circuit, and 12V provides for operator lift setting pressure control circuit Power supply, 5V is 12232 grade display modules, the first isolation circuit, current amplification circuit, signal conditioning circuit, limit switch, infrared LED control circuit and reflective photoelectric sensor provide power supply, and 3.3V is that power down keeps parameter preservation chip and ARM single-chip microcomputers to carry Power supply source.
Also include LCD12232 interfaces, 4*8 module displays interface, 4*16 module displays interface, segment display to connect Mouth, ILI9328 color screens interface, XPT2406 touch screen interfaces and/or expansible 4*4 keyboard operations interface, in addition to signal arrange Circuit, LCD12232 interfaces, 4*8 module displays interface, 4*16 module displays interface, segment display interface, ILI9328 Color screen interface, XPT2406 touch screen interfaces and/or expansible 4*4 keyboard operations interface connect ARM by signal conditioning circuit Single-chip microcomputer.
Also include decoupling circuit and/or antistatic circuit, in addition to RS232 interface and/or USB interface, ARM single-chip microcomputers lead to Cross decoupling circuit and/or antistatic circuit connection RS232 interface and/or USB interface.
Also include USB flash disk interface and/or SD card interface, be provided between ARM single-chip microcomputers and USB flash disk interface and/or SD card interface Communicating circuit.The concrete model of communicating circuit is CH375B.
Current amplification circuit is H bridge current amplification circuits.The concrete model of H bridge current amplification circuits be L6202 or L6225D。
The concrete model of ARM single-chip microcomputers can be STM32F103VET6, STM32F103ZET6, STM32F107VCT6 or STM32F207ZGT6.The concrete model of H bridge current amplification circuits is L6202, L6225D.Between stepper motor and ARM single-chip microcomputers The concrete model of the driving power amplifying circuit of setting is A3987, THB6128, TB62209FG, A5985.USB flash disk interface and institute The concrete model for stating the communicating circuit between ARM single-chip microcomputers is CH375B.Between external-connection displayer and the ARM single-chip microcomputers The concrete model of signal conditioning circuit is HC245.Key can be shown in long-press when software version number is shown over the display " ox copyright of reclaiming wasteland " printed words.ARM single-chip microcomputers are using PWM and direction DIR signals control H bridge current amplification circuits.
Wherein, control device has also reserved the interface that external U turns concatenation oralia, net turn string module and bluetooth module.
ARM single-chip microcomputers are connected by RS232 interface or USB interface with computer, are received computer end upper computer software and are sent PLT formatted files, or USB flash disk and plt or txt file in SD card are read, after carrying out INTERPOLATION CONTROL OF PULSE, in ARM single-chip microcomputers Portion obtains the instantaneous velocity of two axles of X/Y, and the position control of two axles is completed directly in ARM single-chip microcomputers, driving X-axis step Stepper motor and y-axis stepper motor, pass through expansible 4*4 input through keyboard pause, function switch, test, origin setting, process velocity Regulation, knife pressure regulation etc. function, while LCD12232 interfaces, 4*8 module displays interface, 4*16 module displays interface, Segment display interface, ILI9328 color screens interface or XPT2406 touch the current machined parameters of screen display, realize carving machine Paint, cut, the repertoire of a set of stepping carving machine control system is completed with ARM single-chip microcomputers.
Specifically, current amplification circuit includes L6225D chips, L6225D chips include IN1A ends, IN2A ends, OUT1A End, SENSEEA ends, GND ends, ENA ends, VCP ends, VSA ends, OUT2A ends and VBOOT ends;IN1A ends are connected by resistance R49 PWM ends, IN2A ends are by resistance R50 connection DIR ends, and OUT1A ends connection OUT1-U13 ends, SENSEEA ends and GND ends connect Ground, ENA ends are grounded by resistance R51 connection 3.3V voltage ends and by electric capacity C31, VCP ends connection VCP-U13 ends, OUT2A End connection OUT2-U13 ends, VSA ends connection+12V voltage ends, VBOOT ends connection VBOOT-U13 ends.Wherein, ARM single-chip microcomputers Concrete model is STM32F103ZET6, STM32F107VCT6, STM32F107R8T6 or STM32F207ZGT6.
VCP-U13 ends pass through resistance R52 connections VBOOT- by electric capacity C34 connection VCP-U13-1 ends, VCP-U13-1 ends U13-1 ends, VBOOT-U13-1 ends and VBOOT-U13 ends connect diode D3 positive pole and negative pole respectively ,+12V voltage ends and VBOOT-U13-1 ends connect diode D4 positive pole and negative pole respectively, and VBOOT-U13 ends pass through electric capacity C33 connection+12V voltages End ,+12V voltage ends are grounded by electric capacity C32.
OUT1-U13 ends connect OUT2-U13 ends by the resistance R53 being connected in series with electric capacity C35, and diode D1 is just Pole and negative pole are grounded respectively to be grounded and OUT2-U13 ends, OUT1- respectively with OUT1-U13 ends, diode D2 positive pole and negative pole U13 ends pass through inductance FB4 connection FORCE2 ends by inductance FB3 connection FORCE1 ends, OUT2-U13 ends.Wherein, inductance FB3 It is ferrite inductance with FB4.Also include XH-2P terminals, XH-2P terminals include 1 end and 2 ends, FORCE1 ends and FORCE2 ends 1 end and 2 ends are connected respectively.
Inventive principle:ARM single-chip microcomputers are connected by RS232 interface or USB interface with computer, receive computer end host computer The PLT formatted files that software is sent, or USB flash disk and plt or txt file in SD card are read, after carrying out INTERPOLATION CONTROL OF PULSE, in ARM The instantaneous velocity of two axles of X/Y is obtained inside single-chip microcomputer, and the position control of two axles is completed directly in ARM single-chip microcomputers, X-axis stepper motor and y-axis stepper motor are driven, is set by expansible 4*4 input through keyboard pause, function switch, test, origin The functions such as fixed, process velocity regulation, knife pressure regulation, while in LCD12232 interfaces, 4*8 module displays interface, 4*16 modules Display interface device, segment display interface, ILI9328 color screens interface or XPT2406 touch the current machined parameters of screen display, real Existing carving machine is painted, cut, and the repertoire of a set of stepping carving machine control system is completed with ARM single-chip microcomputers.
Stepping carving machine control device of the present utility model based on ARM single-chip microcomputers is carved using ARM single-chip microcomputers as stepping The control master chip of word machine, cost is cheap, and performance and function can be greatly promoted, and Interface Expanding is strong, and motor driving power is put Big circuit stability, operator lift setting pressure control electric current amplifying circuit are stable.

Claims (9)

1. a kind of stepping carving machine control device based on ARM single-chip microcomputers, it is characterised in that including ARM single-chip microcomputers, driving power Amplifying circuit, X-axis stepper motor, y-axis stepper motor, current amplification circuit and operator lift roll setting control electromagnet, in addition to it is anti- Emitting photoelectric sensor, limit switch and/or infrared LED, the reflective photoelectric sensor, limit switch and/or infrared LED The ARM single-chip microcomputers are all connected with, the ARM single-chip microcomputers connect the X-axis stepper motor by the driving power amplifying circuit And y-axis stepper motor, the ARM single-chip microcomputers connect the operator lift roll setting by the current amplification circuit and control electromagnet, The current amplification circuit includes L6225D chips, the L6225D chips include IN1A ends, IN2A ends, OUT1A ends, SENSEEA ends, GND ends, ENA ends, VCP ends, VSA ends, OUT2A ends and VBOOT ends;The IN1A ends are connected by resistance R49 PWM ends, the IN2A ends pass through resistance R50 connection DIR ends, the OUT1A ends connection OUT1-U13 ends, the SENSEEA ends It is grounded with GND ends, the ENA ends are grounded by resistance R51 connection 3.3V voltage ends and by electric capacity C31, and the VCP ends connect Connect VCP-U13 ends, the OUT2A ends connection OUT2-U13 ends, the VSA ends connection+12V voltage ends, the VBOOT ends connection VBOOT-U13 ends.
2. the stepping carving machine control device according to claim 1 based on ARM single-chip microcomputers, it is characterised in that:Also include First isolation circuit, camera, reflective photoelectric sensor, limit switch and/or infrared LED, the camera, reflection type optical Electric transducer, limit switch and/or infrared LED connect the ARM single-chip microcomputers by first isolation circuit.
3. the stepping carving machine control device according to claim 1 based on ARM single-chip microcomputers, it is characterised in that:Also include LCD12232 interfaces, 4*8 module displays interface, 4*16 module displays interface, segment display interface, ILI9328 color screens Interface, XPT2406 touch screen interfaces and/or expansible 4*4 keyboard operations interface, in addition to signal conditioning circuit, it is described LCD12232 interfaces, 4*8 module displays interface, 4*16 module displays interface, segment display interface, ILI9328 color screens Interface, XPT2406 touch screen interfaces and/or expansible 4*4 keyboard operations interface connect institute by the signal conditioning circuit State ARM single-chip microcomputers.
4. the stepping carving machine control device according to claim 1 based on ARM single-chip microcomputers, it is characterised in that:Also include Decoupling circuit and/or antistatic circuit, in addition to RS232 interface and/or USB interface, the ARM single-chip microcomputers pass through decoupling circuit And/or antistatic circuit connection RS232 interface and/or USB interface.
5. the stepping carving machine control device according to claim 1 based on ARM single-chip microcomputers, it is characterised in that:Also include U Disk interface and/or SD card interface, communicating circuit is provided between the ARM single-chip microcomputers and USB flash disk interface and/or SD card interface.
6. the stepping carving machine control device according to claim 1 based on ARM single-chip microcomputers, it is characterised in that:The electricity Current amplifier is H bridge current amplification circuits.
7. the stepping carving machine control device according to claim 1 based on ARM single-chip microcomputers, it is characterised in that:It is described VCP-U13 ends pass through resistance R52 connections VBOOT-U13-1 by electric capacity C34 connection VCP-U13-1 ends, the VCP-U13-1 ends End, the VBOOT-U13-1 ends and VBOOT-U13 ends connect diode D3 positive pole and the negative pole ,+12V voltage ends respectively Connect diode D4 positive pole and negative pole respectively with VBOOT-U13-1 ends, the VBOOT-U13 ends pass through electric capacity C33 connections institute + 12V voltage ends are stated ,+12V the voltage ends are grounded by electric capacity C32.
8. the stepping carving machine control device according to claim 1 based on ARM single-chip microcomputers, it is characterised in that:It is described OUT1-U13 ends connect the OUT2-U13 ends with electric capacity C35 by the resistance R53 being connected in series, diode D1 positive pole and negative Pole be grounded respectively with the OUT1-U13 ends, diode D2 positive pole and negative pole be grounded respectively with the OUT2-U13 ends, it is described OUT1-U13 ends pass through inductance FB4 connection FORCE2 ends by inductance FB3 connection FORCE1 ends, the OUT2-U13 ends.
9. the stepping carving machine control device according to claim 8 based on ARM single-chip microcomputers, it is characterised in that:Also include XH-2P terminals, the XH-2P terminals include 1 end and 2 ends, and the FORCE1 ends and FORCE2 ends connect 1 end and 2 respectively End.
CN201621390964.2U 2016-12-16 2016-12-16 A kind of stepping carving machine control device based on ARM single-chip microcomputers Expired - Fee Related CN207105981U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621390964.2U CN207105981U (en) 2016-12-16 2016-12-16 A kind of stepping carving machine control device based on ARM single-chip microcomputers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621390964.2U CN207105981U (en) 2016-12-16 2016-12-16 A kind of stepping carving machine control device based on ARM single-chip microcomputers

Publications (1)

Publication Number Publication Date
CN207105981U true CN207105981U (en) 2018-03-16

Family

ID=61596152

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621390964.2U Expired - Fee Related CN207105981U (en) 2016-12-16 2016-12-16 A kind of stepping carving machine control device based on ARM single-chip microcomputers

Country Status (1)

Country Link
CN (1) CN207105981U (en)

Similar Documents

Publication Publication Date Title
CN103934673A (en) Numerical control electric screw driver based on static torque sensor, and control method
CN103612491B (en) A kind of laser marking control card
CN207105981U (en) A kind of stepping carving machine control device based on ARM single-chip microcomputers
CN204203771U (en) A kind of electric servomechanism
US20110016241A1 (en) Universal serial bus device
CN207105979U (en) A kind of servo carving machine control device based on ARM and DSP
CN202522931U (en) Gas flow control device
CN207752344U (en) Motion controller
CN203078183U (en) Servo lettering machine control device based on ARM single chip microcomputer
CN106313572A (en) Control system of 3D printing device
CN203100945U (en) Non-linear correction device for intelligent pressure sensor
CN206162511U (en) Adjustable serial module of multichannel of compatible X86 and ARM framework platform
CN104198871A (en) Electronic device tester and testing method thereof
CN201769456U (en) Control card of laser marking machine
CN203734574U (en) Computer driving system used for recorder with paper
CN204719576U (en) A kind of warmhouse booth environmental monitoring installation
CN210839402U (en) Be applied to step motor control circuit of cloud platform
CN210573274U (en) Control circuit with voice early warning prompt function
CN202306539U (en) Real object video showing platform
CN204944606U (en) Liquid level detection system
CN201876863U (en) E-reader
CN205689198U (en) A kind of light sensing driller's display system
CN2859651Y (en) Hand-written mouse with USB concentrator
CN219400888U (en) Volumetric metering type dispensing valve control device and dispensing machine
CN211791340U (en) Controllable band saw controlling means of cutting speed that can self-adaptation timber material

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180316

Termination date: 20191216

CF01 Termination of patent right due to non-payment of annual fee