CN215381641U - Folding integrative gauze mask machine control system - Google Patents
Folding integrative gauze mask machine control system Download PDFInfo
- Publication number
- CN215381641U CN215381641U CN202120877469.9U CN202120877469U CN215381641U CN 215381641 U CN215381641 U CN 215381641U CN 202120877469 U CN202120877469 U CN 202120877469U CN 215381641 U CN215381641 U CN 215381641U
- Authority
- CN
- China
- Prior art keywords
- power supply
- module
- circuit
- control
- mask machine
- 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.)
- Active
Links
Images
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model relates to the technical field of power supply control of mask machines, and discloses a folding integrated mask machine control system which comprises a main power supply loop and a control loop, wherein the main power supply loop is connected with a three-phase power supply through a breaker QF, the main power supply loop is connected with a stepping power supply module, a switching power supply module, an ear discharge motor set, an ultrasonic power supply module and a servo power supply module, and the control loop is connected with the stepping power supply module, the switching power supply module, the ear discharge motor set, the ultrasonic power supply module and the servo power supply module; the system ensures the power supply safety of all the devices of the mask machine, the sequential operation of the whole production process, the sequential suspension of the subsequent devices and the front devices after the condition of the intermediate device, and avoids the waste caused by the operation of the devices and the like.
Description
Technical Field
The utility model relates to the technical field of mask machine power supply control, in particular to a folding integrated mask machine control system.
Background
Due to the occurrence of epidemic situations, the demand of disposable masks is increased, the corresponding requirements on the mask machine are gradually increased, the traditional integrated mask machine is in streamlined automatic operation, high-efficiency mask production operation is realized through the matching of a plurality of devices, the whole equipment of the traditional mask machine is large, the requirements on power supply and coordination work of each part of the equipment are high, the existing power supply is unreasonable, partial equipment is prone to being shut down in production, and other equipment runs, so that production errors are caused.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a control system of a folding integrated mask machine.
In order to achieve the above purpose, the utility model provides the following technical scheme:
the utility model provides a folding integrative gauze mask machine control system, includes total power supply circuit and control circuit, total power supply circuit passes through circuit breaker QF and connects three phase current, total power supply circuit is connected with step power module, switching power module, puts ear material motor group, supersound power module and servo power module, control circuit with step power module, switching power module, put ear material motor group, supersound power module and servo power module and connect, wherein step power module includes a plurality of step motor drive module, step motor drive module is connected with different process motors respectively.
In the present invention, preferably, the total power supply circuit includes a total power supply control circuit, the total power supply control circuit includes a fuse FU1, one end of the fuse FU1 is connected to a three-phase power supply, the other end of the fuse FU is grounded through a series-connected heat dissipation fan, and a series circuit of a key S1 and a coil of a contactor KM1 is further connected in parallel to two ends of the heat dissipation fan.
In the present invention, it is preferable that a status indicator lamp HR is further connected in parallel to both ends of the coil of the contactor KM 1.
In the present invention, preferably, the total power supply circuit further includes a plurality of branch circuits, one end of each branch circuit is connected in parallel with the total power supply control circuit through a contact of the contactor KM1, and the other end of each branch circuit is connected to the stepping power supply module, the switching power supply module, the ear discharge motor set, and the ultrasonic power supply module, respectively.
In the present invention, preferably, the first branch circuit is connected to the step power module, the first branch circuit includes a fuse FU4, the fuse FU4 is connected in series to a transformer, the other end of the transformer is connected to a rectifier bridge, and the output end of the rectifier bridge is connected to the step power module.
In the present invention, preferably, a second branch circuit is connected to the switching power supply module, the second branch circuit includes a fuse FU6, the fuse FU6 is connected to an ac/dc converter, the ac/dc converter converts ac power to 24V dc power for output, and the output of the ac/dc converter is connected to the switching power supply module.
In the utility model, preferably, the lug discharging motor set comprises a left lug discharging motor and a right lug discharging motor, the left lug discharging motor is connected with the fuse FU6 through a normally open contact of a control relay KA7, and the right lug discharging motor is connected with the fuse FU6 through a control relay KA 8.
In the present invention, preferably, the control circuit includes a main control circuit, a detection input circuit, and an expansion circuit, the main control circuit includes a main control module, an input end of the main control module is connected to a status indication switch of each point location device of the mask machine, and an output end of the main control module outputs a middle control signal for each point location.
In the utility model, preferably, the detection input circuit comprises an analog input module, the input end of the analog input module is connected with a limit switch and an inductor which are arranged at the production point of the mask machine, and the sequential control of the whole process of the mask machine is realized according to signals input and collected by the limit switch and the inductor.
In the utility model, preferably, the expansion circuit comprises an expansion control module, and the output end of the expansion control module is connected with a material roll motor control relay group, an ear discharge motor control relay group, a cylinder control valve group, an ear belt control valve group, a punching waste material blowing control valve group and an ultrasonic control signal.
Compared with the prior art, the utility model has the beneficial effects that:
the system of the utility model supplies power to the driving groups of each device of the mask machine according to the classification modules respectively, and controls the next operation according to the running state of the device by using the control loop, namely the corresponding device is controlled to be powered on, and the subsequent devices are not controlled to be powered on when the condition is not met, so that the power supply safety of each device in the system is ensured, the whole production process is run sequentially, the subsequent devices and the front devices are suspended sequentially after the condition of the intermediate devices is met, and the waste caused by running terrible by the devices is avoided.
Drawings
Fig. 1 is a circuit diagram of a general power supply circuit of a control system of a folding integrated mask machine according to the present invention.
Fig. 2 is a circuit diagram of a stepping power module of a control system of a folding integrated mask machine according to the present invention.
Fig. 3 is a circuit diagram of a servo power module of the control system of the folding integrated mask machine according to the present invention.
Fig. 4 is a connection circuit diagram of a main control module of the control system of the folding integrated mask machine according to the present invention.
Fig. 5 is a circuit diagram of the connection of the analog input module of the control system of the folding integrated mask machine according to the present invention.
Fig. 6 is a connection circuit diagram of an expansion control module of the folding integrated mask machine control system according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 3, a preferred embodiment of the present invention provides a control system for a foldable integrated mask machine, which is mainly used for the foldable integrated mask machine, the mask machine includes a feeding set, a nose bridge set, a spraying set, a welding ear rope set, and a folding set, and sequentially transmits, attaches cotton, overlaps, sprays a code, welds an ear belt, and folds mask raw materials, and includes a main power supply loop and a control loop, the main power supply loop is connected to a three-phase power supply through a circuit breaker QF, the main power supply loop is connected to a step power supply module, a switching power supply module, an ear placing motor set 13, an ultrasonic power supply module 14, and a servo power supply module, and the control loop is connected to the step power supply module, the switching power supply module, the ear placing motor set 13, the ear placing motor set 14, and the servo power supply module, The ultrasonic power supply module 14 is connected with the servo power supply module, wherein the stepping power supply module comprises a plurality of stepping motor driving modules 11, and the stepping motor driving modules 11 are respectively connected with motors of different processes.
Specifically, a main power supply loop is connected with a three-phase power supply through a breaker QF, a stepping power supply module, a switching power supply module, an ear discharge motor group 13, an ultrasonic power supply module 14 and a servo power supply module are connected in the main power supply loop, the power supply modules are connected in parallel without influencing each other, the main power supply loop is used for providing electric energy required by the operation of each module, the breaker QF is used for ensuring the safe operation of the whole system, the stepping power supply module comprises 5 stepping motor driving modules 11, the stepping motor driving modules 11 are connected in parallel in the circuit, the output end of the stepping motor driving module 11 is connected with a left rotating motor, a right rotating motor, a cotton sticking motor, a left printing shift motor and a right printing shift motor respectively, the input end of the stepping motor driving module 11 is also connected into a control loop, after the control loop sends a level signal, the stepping motor driving module 11 is electrified to drive a motor connected with the stepping motor driving module to work; the servo power supply module comprises 3 servo driving modules 15, a main shaft servo motor, a lug welding servo motor and a doubling-up motor which are respectively connected with the servo driving modules 15, the three servo driving modules 15 are all connected with a control loop, and the corresponding motors are driven to work according to level signals sent by the control loop; the power supply of the power distribution modules of different types of motors is realized, so that the overall power supply safety of the system is ensured.
In this embodiment, total power supply circuit includes total power supply control circuit 100, and total power supply control circuit 100 includes fuse FU1, and fuse FU1 one end is connected with three-phase power, and the other end is through series connection radiator fan ground connection, and the radiator fan both ends still have the parallel connection key S1 and the series circuit of contactor KM1 coil, and contactor KM1 coil both ends still have the parallel connection status indicator HR.
Specifically, fuse FU1 is as total power supply control circuit 100 'S overcurrent protector, and button S1 is manual button, for total control switch of entire system, after pressing button S1, button S1 is closed, and contactor KM1 coil place circuit circular telegram, and status indicator HR lights, and the indicating system circular telegram, contactor KM 1' S normally open contact is closed.
In this embodiment, the total power supply circuit further includes a plurality of branch circuits, one end of each branch circuit is connected in parallel with the total power supply control circuit 100 through a contact of the contactor KM1, and the other end of each branch circuit is connected to the stepping power supply module, the switching power supply module, the ear discharge motor group 13, and the ultrasonic power supply module 14, respectively.
Concretely, the normally open contact through contactor KM1 realizes the control to branch circuit, and when button S1 is closed back, contactor KM1 coil is electrified to make contactor KM 1' S contact closed, branch circuit circular telegram, thereby realize the control of whole power supply, avoid because some equipment work that reasons such as maloperation arouse.
In this embodiment, the first branch circuit 101 is connected to the step power module, the first branch circuit 101 includes a fuse FU4, the fuse FU4 is connected in series to a transformer, the other end of the transformer is connected to a rectifier bridge, and the output end of the rectifier bridge is connected to the step power module.
Specifically, fuse FU4 is used for carrying out overcurrent protection to first branch circuit 101, and the transformer is used for reducing the voltage of input, provides step motor drive module 11 with alternating current transformation for the direct current through the rectifier bridge after the step-down and uses, simultaneously at the rectifier bridge output and have filter capacitor, filter capacitor is to the current shaping and the filtering of output, guarantees the stability of electric current, and no clutter to ensure step motor drive module 11's normal work.
In this embodiment, the second branch circuit 102 is connected to the switching power supply module, the second branch circuit 102 includes a fuse FU6, the fuse FU6 is connected to an ac/dc converter, the ac/dc converter converts ac power into 24V dc power and outputs the dc power, and the output terminal of the ac/dc converter is connected to the switching power supply module.
Specifically, the fuse FU6 is used to perform overcurrent protection on the second branch circuit 102, the ac-dc converter is used to convert ac power into 24V dc power and output the dc power to the switching power supply module, and the switching power supply module is used to supply power to the control circuit.
In this embodiment, ear material motor group 13 includes left ear material motor and right ear material motor, and left ear material motor passes through control relay KA7 normally open contact and connects fuse FU6, and right ear material motor passes through control relay KA8 and connects fuse FU 6.
Specifically, in gauze mask production process, the ear area need be welded, the ear area is put the ear material motor through a left side and is carried with the right side and put the ear material motor, and put the ear material in the middle of whole course of working, need the controller to control its work, so connect control relay KA7 normally open contact in left side putting ear material motor power-on circuit, connect control relay KA8 in the right side puts ear material motor power-on circuit, the coil of control relay KA7 that corresponds separately and the coil of control relay KA8 connect in control circuit, control by control circuit, when the coil is electrified, normally open contact with the coil correspondence is closed, make the motor that corresponds electrified, begin work, thereby accomplish the control to left side ear material motor or right ear material motor.
Referring to fig. 4 to 6, in this embodiment, the control circuit includes a main control circuit, a detection input circuit, and an expansion circuit, the main control circuit includes a main control module 21, an input end of the main control module 21 is connected to a status indication switch of each mask machine production point location device, and an output end of the main control module outputs a middle control signal to each production point.
Specifically, the control loop mainly adopts a PLC controller, a main control module 21 of the main control circuit, the input end of which is mainly connected with a state indicating switch, and specifically comprises a left feeding rotating group 210, a right feeding rotating group 210, a cotton pasting moving group 211, a left printing shifting group 212, a right printing shifting group 212, a folding welding group 213, a left ear shearing belt group 214, a right ear welding belt group 215, and an output end of which outputs a middle control signal, wherein the middle control signal comprises a main shaft pulse signal 216, a welding ear moving pulse signal 217, a folding moving pulse signal 218, a left rotating pulse signal 219, a right printing shifting pulse signal 2110 and a cotton pasting moving pulse 2111; a main axis direction signal 2112, a weld movement signal 2113, a half-folded movement direction signal 2114, a rotation direction 2115, a cotton attachment movement direction 2116, and a left-right printing shift direction signal 2117; and the valve groups of the left welding lug band cylinder 2118, the left opening and closing air clamping cylinder group 2119, the left ear shearing band cylinder 2120 and the left and right printing shifting cylinder groups 2021 are respectively controlled, when the state indicating switch is closed, the state indicating switch indicates that the corresponding left and right feeding rotating groups 210 or other groups act, the main control module 21 makes judgment according to the valve groups to determine a next step instruction, and the next step instruction is output from the output end of the main control module to control the corresponding device to act, so that the sequential work of the mask machine is controlled.
In this embodiment, the detection input circuit includes the analog input module 22, the input end of the analog input module 22 is connected to the limit switch and the sensor arranged at the production point of the mask machine, and the sequence control of the whole process of the mask machine is realized according to the signals input and collected by the limit switch and the sensor.
Specifically, each device action needs a limit switch for detection so as to judge whether the device action is completed in place and carry out the next process, so the main control module 21 is also connected with an analog input module 22, the input end of the analog input module 22 is connected with the limit switch and an inductor, the limit switch mainly comprises an upper limit switch and a lower limit switch of a material roll, and pins X16-X17, X20-X27 and X30-X37 which are connected with the analog input module 22 are used for detecting whether raw materials on the material rolls are sufficient or lack; the folding mobile limit switch is connected to an X5-X7 pin of the analog input module 22 and used for detecting whether the folding is in place; the welding lug moving limit switch is connected to an X10-X12 pin and used for detecting whether the welding lug moves in place; the sensor mainly comprises a left ear missing sensor, a right ear missing sensor and a nose bridge missing sensor, and is used for detecting whether the left ear belt, the right ear belt and the nose bridge piece are missing; the pins X0, X1 and X3 of the analog input module 22 are respectively connected to a start button, an emergency stop button and a stop button, so as to realize the start-stop control of the control loop on the whole system and ensure the operation safety of the system.
In this embodiment, the extension circuit includes an extension control module 23, and a material roll motor control relay group 200, an ear discharge motor control relay group 201, a cylinder control valve group 202, an ear belt control valve group 203, a punched waste material blowing control valve group 204, and an ultrasonic control signal 205 are connected to an output end of the extension control module 23.
Specifically, the expansion circuit is connected to the main control module 21 for expanding the interface, wherein the ultrasonic control signal 205 is used for controlling the left and right welding lugs, the punching and the molding respectively; the punching waste air blowing control valve group 204 is used for controlling the final waste collection and air blowing of the mask machine; the material roll motor control relay group 200 controls the work of a plurality of material roll motors through the power failure of the relays; the ear belt control valve group 203 is respectively connected with an ear belt blowing cylinder, an ear belt shearing cylinder and an ear belt welding cylinder, and the work of the corresponding cylinders is realized through the opening and closing of valves; the ear discharging motor control relay group 201 comprises left and right ear discharging motor control relays KA7 and KA8 coils, and normally open contacts corresponding to the control relays KA7 and KA8 are connected to a power supply circuit of the left ear discharging motor and the right ear discharging motor.
The working principle is as follows:
a three-phase power supply is connected to a main power supply loop through a breaker QF, the main power supply loop is connected with a main power supply control circuit 100 and a plurality of branch circuits in parallel, a key S1 is arranged in the main power supply control circuit 100, a key S1 is an integral power supply control button of the mask machine, the main power supply control circuit 100 is powered on when the button is pressed, meanwhile, a contactor KM1 on each branch circuit is closed, the branch circuits are also powered on, and a stepping power supply module, a switching power supply module, an ear discharge motor group 13, an ultrasonic power supply module 14 and a servo power supply module which are connected with the branch circuits are powered on; the control circuit adopts a PLC controller, the running state of each point equipment input by the input ends of the main control module 21 and the analog input module 22 and the collected limiting and sensing signals are output to the corresponding equipment through the output ends, so that the equipment is electrified to start working, the electrified control of each equipment of the mask machine is well realized, the equipment of the same type is classified and controlled, the operation is safe, and the maintenance and the daily maintenance are convenient.
The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the claims of the present invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a folding integrative gauze mask machine control system, its characterized in that, includes total power supply circuit and control circuit, total power supply circuit passes through circuit breaker QF and connects three phase current, total power supply circuit is connected with step power module, switching power module, puts ear material motor group (13), supersound power module (14) and servo power module, control circuit with step power module, switching power module, put ear material motor group (13), supersound power module (14) and servo power module and connect, wherein step power module includes a plurality of step motor drive module (11), step motor drive module (11) are connected with different process motors respectively.
2. The folding all-in-one mask machine control system according to claim 1, wherein the total power supply circuit comprises a total power supply control circuit (100), the total power supply control circuit (100) comprises a fuse FU1, one end of the fuse FU1 is connected with a three-phase power supply, the other end of the fuse FU1 is grounded through a series-connected heat-dissipation fan, and a series circuit of a key S1 and a coil of a contactor KM1 is connected in parallel at two ends of the heat-dissipation fan.
3. The control system of a folding integrated mask machine according to claim 2, wherein a status indicator lamp HR is further connected in parallel with two ends of the coil of the contactor KM 1.
4. The folding all-in-one mask machine control system is characterized in that the main power supply circuit further comprises a plurality of branch circuits, one end of each branch circuit is connected with the main power supply control circuit (100) in parallel through a contact of a contactor KM1, and the other end of each branch circuit is connected with the stepping power supply module, the switching power supply module, the ear discharge motor set (13) and the ultrasonic power supply module (14) respectively.
5. The folding all-in-one mask machine control system according to claim 4, wherein the first branch circuit (101) is connected with the stepping power supply module, the first branch circuit (101) comprises a fuse FU4, the fuse FU4 is connected with a transformer in series, the other end of the transformer is connected with a rectifier bridge, and the output end of the rectifier bridge is connected with the stepping power supply module.
6. The folding all-in-one mask machine control system according to claim 1, wherein a second branch circuit (102) is connected with the switching power supply module, the second branch circuit (102) comprises a fuse FU6, the fuse FU6 is connected with an AC/DC converter, the AC/DC converter converts AC into 24V DC for output, and the output end of the AC/DC converter is connected with the switching power supply module.
7. The control system of a folding all-in-one mask machine according to claim 1, wherein the ear releasing motor set (13) comprises a left ear releasing motor and a right ear releasing motor, the left ear releasing motor is connected with the fuse FU6 through a normally open contact of a control relay KA7, and the right ear releasing motor is connected with the fuse FU6 through a control relay KA 8.
8. The folding integrated mask machine control system according to claim 1, wherein the control circuit comprises a main control circuit, a detection input circuit and an expansion circuit, the main control circuit comprises a main control module (21), the input end of the main control module (21) is connected with a state indication switch of each mask machine production point location device, and the output end of the main control module outputs a middle control signal of each production point.
9. The folding integrated mask machine control system according to claim 8, wherein the detection input circuit comprises an analog input module (22), the input end of the analog input module (22) is connected with a limit switch and an inductor which are arranged at the production point of the mask machine, and the sequential control of the whole process of the mask machine is realized according to the signals input and collected by the limit switch and the inductor.
10. The folding integrated mask machine control system according to claim 8, wherein the expansion circuit comprises an expansion control module (23), and a material roll motor control relay group (200), an ear discharge motor control relay group (201), a cylinder control valve group (202), an ear belt control valve group (203), a punching waste material blowing control valve group (204) and an ultrasonic control signal (205) are connected to the output end of the expansion control module (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120877469.9U CN215381641U (en) | 2021-04-26 | 2021-04-26 | Folding integrative gauze mask machine control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120877469.9U CN215381641U (en) | 2021-04-26 | 2021-04-26 | Folding integrative gauze mask machine control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215381641U true CN215381641U (en) | 2022-01-04 |
Family
ID=79673111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120877469.9U Active CN215381641U (en) | 2021-04-26 | 2021-04-26 | Folding integrative gauze mask machine control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215381641U (en) |
-
2021
- 2021-04-26 CN CN202120877469.9U patent/CN215381641U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101222145B (en) | Device and method for on-line switching uninterrupted power supply | |
| CN102435899B (en) | Locomotive traction converter test apparatus and method thereof | |
| CN104810922A (en) | Control cabinet with electric energy management function and electric energy management method thereof | |
| CN107863917A (en) | A kind of variable-frequency motor transformation circuit with cooling blower | |
| CN103631193A (en) | System and method for realizing equipment control mode centralized undisturbed transfer | |
| CN106774140B (en) | Energy-saving control method and control system for oil pumping unit in oil field | |
| CN215381641U (en) | Folding integrative gauze mask machine control system | |
| CN207308081U (en) | Intelligent crusher control system | |
| CN204481565U (en) | A kind of two-way power transfer device being applicable to mother controller | |
| CN207847907U (en) | A kind of air compressor machine anomaly alarming device | |
| CN103699047A (en) | Handling method of fault of automatic electric automobile battery replacement system based on PLC (Programmable Logic Controller) control | |
| CN104716736B (en) | Control circuit of double-power-supply changeover device | |
| CN202704927U (en) | Direct current lifting electromagnet outage magnet-keeping device providing inverting current | |
| CN214140320U (en) | Automatic control system for roller way conveying of shot blasting type derusting machine | |
| CN102234719B (en) | Sintering plant operating simulation system | |
| CN204425033U (en) | A kind of emergency lighting automatic switchover system | |
| CN209250528U (en) | A kind of industrial water pump motor work system | |
| CN209510683U (en) | A kind of fan energy-saving control system | |
| CN110985638A (en) | Hydraulic vehicle reduction gear monitored control system | |
| CN202855148U (en) | Constant voltage constant current electric control cabinet used for teaching | |
| CN207782696U (en) | A kind of variable-frequency motor transformation circuit with cooling blower | |
| CN202712939U (en) | Multifunctional charger | |
| CN218886460U (en) | Temporary water supply control circuit for cities and towns | |
| CN201667018U (en) | Automatic feeding and discharging control circuit of ground tank | |
| CN201264380Y (en) | Cascade impact preventing control device of mechanical press |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |