CN213365320U - Automatic blank control system - Google Patents
Automatic blank control system Download PDFInfo
- Publication number
- CN213365320U CN213365320U CN202022890386.1U CN202022890386U CN213365320U CN 213365320 U CN213365320 U CN 213365320U CN 202022890386 U CN202022890386 U CN 202022890386U CN 213365320 U CN213365320 U CN 213365320U
- Authority
- CN
- China
- Prior art keywords
- control system
- programmable logic
- logic controller
- frequency converter
- rotary encoder
- 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
- Control Of Conveyors (AREA)
Abstract
The utility model relates to an automatic material cutting control system, which comprises a material feeding control system and a cutter control system, the feeding control system comprises a programmable logic controller, a frequency converter, a three-phase asynchronous motor, a rotary encoder and a conveyor belt, the programmable logic controller realizes frequency conversion and speed regulation on the three-phase asynchronous motor through a frequency converter, the rotary encoder feeds back the rotating angle and the transmission distance to the programmable logic controller, thereby realize the accurate positioning of expecting, cutter control system realizes the fixed of blank through above-mentioned programmable logic controller control solenoid to compressing tightly the cylinder, and control servo driver realizes the settlement of cutter speed governing to servo motor, the utility model discloses material loading is adjustable, and blank length is adjustable, satisfies the enterprise and produces the cutting to different speed demands, realization to the multiple length of material, has good economic benefits.
Description
Technical Field
The utility model relates to a machining control field, in particular to automatic blank control system.
Background
In the field of industrial processing, material cutting is an important processing mode, the traditional manual material cutting has low efficiency, uneven material cutting surface, high working strength and difficult guarantee of processing quality, and even brings potential safety hazards to operators easily. Most ordinary stock cutters can only cut out the material of the fixed length at present, and the material loading speed is unadjustable moreover, and the steady reliability of working process is relatively poor, hardly satisfies enterprise's production to different specification raw and other materials, the processing demand of different speeds, is unfavorable for practicing thrift manufacturing cost, and economic benefits is relatively poor.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model discloses an automatic blank control system, this blank control system reasonable in design, the working process is steady reliable, and the enterprise can cut multiple specification raw and other materials according to the production demand, and feed rate can be adjusted according to the processing state, both can practice thrift the cost, can satisfy the production requirement again, has good economic benefits.
In order to realize the purpose, the utility model discloses a technical scheme is:
an automatic material cutting control system comprises an operation panel, a feeding control system and a cutter control system, wherein the operation panel comprises an operation button and a touch screen, the feeding control system comprises a programmable logic controller, a frequency converter, a three-phase asynchronous motor, a rotary encoder, a belt pulley and a conveying belt, the rotary encoder is directly connected to a driving shaft of the three-phase asynchronous motor, the belt pulley is installed at a power output end of the three-phase asynchronous motor, the conveying belt is connected with the three-phase asynchronous motor through the belt pulley, the conveying belt is horizontal to a feeding port, the cutter control system comprises the programmable logic controller, a proximity switch, a servo driver, a servo motor, a transmission gear, a ball screw, a transmission shaft, a cutter, an electromagnetic valve, a pressing cylinder and a cutting pressing plate, the servo motor drives the transmission gear to drive the ball screw to rotate, the programmable logic controller, the frequency converter, the servo driver and the electromagnetic valve are all arranged in a control electric cabinet, the servo motor is connected with the servo driver through a communication line and is connected with a working power supply through a power line, and the operating button, the touch screen, the rotary encoder, the frequency converter, the proximity switch, the servo driver and the electromagnetic valve are connected to the programmable logic controller through signal lines and are connected to the working power supply through power lines.
The working power supply comprises a three-phase 380V alternating current main power supply, a single-phase 220V alternating current main power supply and a 24V direct current switch power supply, the three-phase 380V alternating current main power supply respectively supplies power to the frequency converter and the three-phase asynchronous motor through power lines, the single-phase 220V alternating current main power supply respectively supplies power to the servo driver, the servo motor, the 24V direct current switch power supply and the programmable logic controller through power lines, and the 24V direct current switch power supply respectively supplies power to the touch screen, the rotary encoder, the proximity switch and the electromagnetic valve through power lines.
The operation button comprises a power switch, an automatic starting switch, an abnormal reset switch and an emergency stop switch and is responsible for controlling the power-on starting and abnormal protection work of the system.
As a preferable technical scheme of the design, the touch screen is a Wilton TK6071iP touch screen.
As a preferred technical scheme of the design, the programmable logic controller is selected from Mitsubishi FX3SA-20MT-CM programmable logic controllers with a counting function.
As a preferable technical scheme of the design, the frequency converter is a step VFD015M43B frequency converter which can directly realize frequency conversion and speed regulation through a knob.
As a preferable technical scheme of the design, the rotary encoder is a high-precision ohm dragon E6B2-CWZ6C incremental pulse encoder.
As a preferable technical scheme of the design, the servo driver is a high-cost-performance SC100X-2CAL alternating-current servo driver.
As a preferable technical scheme of the design, the servo motor is a 110ST-M04030 alternating-current servo motor with high cost performance.
As a preferable technical scheme of the design, the proximity switch can be used as origin point induction to realize the determination of the position of the origin point of the cutter.
Compared with the prior art, the utility model, following beneficial effect has does:
1. the utility model discloses application programmable logic controller, converter, three-phase asynchronous machine and rotary encoder constitute closed loop control system, rely on programmable logic controller to realize variable frequency speed governing to three-phase asynchronous machine through the converter to utilize rotary encoder to feed back rotation angle and transfer distance to programmable logic controller, thereby realized the accurate positioning of blank length.
2. The utility model discloses a programmable logic controller is control core, and interference immunity is strong, uses the touch-sensitive screen, and blank length can be adjusted at any time and set for, and operation process is simple and convenient, through servo driver and servo motor drive cutter, and the blank count is convenient accurate.
Drawings
FIG. 1 is a block diagram of a blanking system;
FIG. 2 is a schematic diagram of a loading control system;
FIG. 3 is a schematic diagram of a cutter control system;
FIG. 4 is a first main circuit schematic of the blanking system;
FIG. 5 is a second main circuit schematic of the blanking system;
FIG. 6 is a wiring diagram of a frequency converter and a three-phase asynchronous motor;
FIG. 7 is a wiring diagram of the rotary encoder;
FIG. 8 is a wiring diagram of the blanking servo motor;
FIG. 9 is a hardware input connection diagram of a programmable logic controller;
FIG. 10 is a diagram of hardware output connections of a programmable logic controller;
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 3, an automatic material cutting control system comprises an operation panel, a feeding control system and a cutter control system, wherein the operation panel comprises an operation button and a touch screen, the feeding control system comprises a programmable logic controller, a frequency converter, a three-phase asynchronous motor, a rotary encoder, a belt pulley and a conveyor belt, the rotary encoder is directly connected to a driving shaft of the three-phase asynchronous motor, the belt pulley is arranged at a power output end of the three-phase asynchronous motor, the conveyor belt is connected with the three-phase asynchronous motor through the belt pulley, the conveyor belt is horizontal to a feeding port, the cutter control system comprises the programmable logic controller, a proximity switch, a servo driver, a servo motor, a transmission gear, a ball screw, a transmission shaft, a cutter, an electromagnetic valve, a pressing cylinder and a cutting pressing plate, the servo motor drives the transmission gear to drive the ball screw to rotate, so as to drive the cutter to do linear motion along the transmission axial direction, the compressing cylinder is connected to the cutting pressing plate through a fastener, the programmable logic controller, the frequency converter, the servo driver and the electromagnetic valve are all arranged in the control electric cabinet, the servo motor is connected with the servo driver through a communication line and is connected with a working power supply through a power line, and the operating button, the touch screen, the rotary encoder, the frequency converter, the proximity switch, the servo driver and the electromagnetic valve are connected to the programmable logic controller through signal lines and are connected to the working power supply through the power line.
As shown in fig. 4-8, the working power supply includes a three-phase 380V ac main power supply, a single-phase 220V ac main power supply and a 24V dc switching power supply, the three-phase 380V ac main power supply respectively supplies power to the frequency converter and the three-phase asynchronous motor through power lines, the single-phase 220V ac main power supply respectively supplies power to the servo driver, the servo motor, the switching power supply and the programmable logic controller through power lines, and the 24V dc switching power supply respectively supplies power to the touch screen, the rotary encoder, the proximity switch and the electromagnetic valve through power lines.
Before the work, press the switch on the operating panel, the system is electrified the back, presses the initial point reset button on the above-mentioned touch-sensitive screen, programmable logic controller passes through servo driver control servo motor drive cutter and carries out the searching of initial point position, and when proximity switch received initial point signal response, servo motor stopped, because proximity switch and corresponding response metal's rigidity, in order to let the cutter find suitable blank position, need find the initial point position at servo motor after, set up one section suitable offset distance in the above-mentioned touch-sensitive screen parameter setting interface.
The FX3SA PLC of the present invention has 5 built-in high-speed counters C251-C255 with double-phase double-counting input function, i.e. one counter occupies 2 high-speed counting input points, one A-phase counting input and one B-phase counting input; count when A looks lead B looks increases, count when B looks lead A looks reduces, the utility model discloses a C251 high-speed counter.
As shown in fig. 9, the A, B two-phase pulses of the encoder are sampled by X0 and X1, respectively, of the programmable logic controller. When the three-phase asynchronous motor rotates, the rotary encoder coaxially connected with the three-phase asynchronous motor outputs pulse signals representing the angular displacement of the three-phase asynchronous motor shaft to the programmable logic controller, the number of the pulse signals is recorded by a C251 high-speed counter in the programmable logic controller and is compared with a set value in the programmable logic controller in advance, and when the numerical value in the C251 high-speed counter is equal to the set value, the three-phase asynchronous motor stops working.
As shown in fig. 10, the utility model discloses a start of programmable logic controller control converter stops, the converter passes through the turn-knob and converts 50 Hz's power frequency power supply into the alternating current of corresponding frequency to the power supply of three-phase asynchronous motor, rotary encoder lug connection is on the driving shaft of motor, converts the radian that the motor has rotated into the pulse to feed back to above-mentioned programmable logic controller, programmable logic controller calculates the distance that transports of conveyer belt through pulse quantity, with the accurate settlement of realization blank length.
The utility model discloses a rotary encoder is incremental encoder, has A, B two looks poor 90, is corotation when A looks lead B looks, then is the reversal when B looks lead A looks, with A, B double-phase pulse lug connection to programmable logic controller's high-speed counter input, calculates the displacement between per two pulses, pulse equivalent promptly. The utility model discloses rotary encoder's resolution ratio is 2000P/R for N, and the diameter of conveyer belt driving shaft is 120mm for D, then three-phase asynchronous machine is every a revolution, and the displacement distance between two pulses, pulse equivalent mu (pi D)/N (3.14 x 120/2000) is 0.188mm, if when the programmable logic controller record the pulse count be M, can calculate the displacement distance L of blank on the conveyer belt mu M.
The utility model discloses an automatic blank has two processes, material loading process and blank process promptly
Two processes were analyzed:
(1) the feeding process comprises the following steps: after the position of a to-be-cut knife is adjusted, the length of a stub bar, the length of the material, the cutting times, the cutting speed and the in-place delay time of a pressing cylinder are set on a touch screen, manual feeding is started, an automatic starting switch on an operation panel is pressed, after a system is started, a solenoid valve is started to drive the pressing cylinder to work, after the in-place delay time of the pressing cylinder is used up, a three-phase asynchronous motor is started to drive a belt pulley to continuously convey the cut material on a conveying belt, and when the work material moves to the set cutting length, the system enters the cutting process.
(2) And (3) cutting: after the system finishes the feeding, a servo driver starts a servo motor to drive a transmission gear to drive a ball screw to rotate so as to drive a cutter to do linear cutting motion along the transmission shaft, after the work material is cut off, a counter inside a programmable logic controller counts the cutting times to add 1, one-time material cutting is finished, the cutter returns to the initial position, a conveyor belt continuously feeds the material again, the material cutting process is repeated when the material is fed to the set material cutting length, the counter inside the programmable logic controller counts the cutting times to continuously add 1, when the cutting times reach the set material cutting times, the material cutting process is finished, and the current value of the number of the material cutting tools is reset.
The utility model discloses there will be some errors when practical application, including the measuring error of conveyer belt main shaft, the degree of tension and the installation deviation of conveyer belt etc. cause pulse equivalent and theoretical calculation value to have the deviation, so must adopt the method of on-the-spot pulse equivalent test to calculate the theoretical value and revise, but the pulse number of many times actual measurement blank displacement and high-speed counter record, the count goes out actual measurement pulse equivalent, asks for the mean value. In the process of on-site installation and debugging, the concentricity between the three-phase asynchronous motor and the transmission shaft needs to be carefully adjusted, the tension degree is adjusted simultaneously, and two sides need to be balanced and adjusted, so that the running deviation of the conveying belt is avoided.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the invention without departing from the spirit and scope of the invention.
Claims (6)
1. An automatic blank control system which characterized in that: comprises an operating panel, a feeding control system and a cutter control system, wherein the operating panel comprises an operating button and a touch screen, the feeding control system comprises a programmable logic controller, a frequency converter, a three-phase asynchronous motor, a rotary encoder, a belt pulley and a conveyor belt, the rotary encoder is directly connected to a driving shaft of the three-phase asynchronous motor, the belt pulley is arranged at a power output end of the three-phase asynchronous motor, the conveyor belt is connected with the three-phase asynchronous motor through the belt pulley, the conveyor belt is horizontal to a feeding hole, the cutter control system comprises the programmable logic controller, a proximity switch, a servo driver, the servo motor, a transmission gear, a ball screw, a transmission shaft, a cutter, an electromagnetic valve, a pressing cylinder and a cutting pressing plate, the servo motor drives the transmission gear to drive the ball screw to rotate, the programmable logic controller, the frequency converter, the servo driver and the electromagnetic valve are all arranged in a control electric cabinet, the servo motor is connected with the servo driver through a communication line and is connected with a working power supply through a power line, and the operating button, the touch screen, the rotary encoder, the frequency converter, the proximity switch, the servo driver and the electromagnetic valve are connected to the programmable logic controller through signal lines and are connected to the working power supply through power lines.
2. The automatic blanking control system of claim 1, wherein: the programmable logic controller is selected from Mitsubishi FX3SA-20MT-CM programmable logic controllers with a counting function.
3. The automatic blanking control system of claim 1, wherein: the frequency converter is a frequency converter VFD015M43B capable of directly realizing frequency conversion and speed regulation through a knob.
4. The automatic blanking control system of claim 1, wherein: the rotary encoder is a high-precision ohm-dragon E6B2-CWZ6C incremental pulse encoder.
5. The automatic blanking control system of claim 1, wherein: the servo driver adopts a high-cost-performance SC100X-2CAL alternating current servo driver.
6. The automatic blanking control system of claim 1, wherein: the servo motor is a 110ST-M04030 alternating current servo motor with high cost performance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022890386.1U CN213365320U (en) | 2020-12-04 | 2020-12-04 | Automatic blank control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022890386.1U CN213365320U (en) | 2020-12-04 | 2020-12-04 | Automatic blank control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213365320U true CN213365320U (en) | 2021-06-04 |
Family
ID=76136924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022890386.1U Active CN213365320U (en) | 2020-12-04 | 2020-12-04 | Automatic blank control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213365320U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114454237A (en) * | 2022-02-18 | 2022-05-10 | 杭州勤鹄科技有限公司 | Pearl cotton fixed-length cutting device and method |
-
2020
- 2020-12-04 CN CN202022890386.1U patent/CN213365320U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114454237A (en) * | 2022-02-18 | 2022-05-10 | 杭州勤鹄科技有限公司 | Pearl cotton fixed-length cutting device and method |
| CN114454237B (en) * | 2022-02-18 | 2024-05-14 | 杭州勤鹄科技有限公司 | Fixed-length cutting device and method for pearl cotton |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101367174B (en) | Table stroke control apparatus and control method | |
| CN213365320U (en) | Automatic blank control system | |
| CN202720488U (en) | PLC based automatic control system for bending machine | |
| CN102527748A (en) | Winding and arranging control system of fine steel wire drawing machine | |
| CN104238447A (en) | Method for achieving synchronous control of two shafts | |
| CN205472000U (en) | Receipts winding displacement automatic control system of cable | |
| CN2782722Y (en) | Simulation regulator for warping machine | |
| CN105417283A (en) | Automatic control system for gathering and laying of cables | |
| CN201097191Y (en) | Full-closed servo press control system | |
| CN203003600U (en) | Slotting machine automatic control system | |
| CN102101251B (en) | Position detection and control device | |
| CN202377282U (en) | Wire retracting and arranging control system of fine steel wire drawing machine | |
| CN201201080Y (en) | Self-tapping apparatus | |
| CN111464087B (en) | Control method and positioning mechanism of zero-free switch stepping motor | |
| CN102350541B (en) | Three-shaft following online cutting numerical control milling machine and three-shaft following control method thereof | |
| CN102371392B (en) | High-speed precise online numerical-control milling machine and control method thereof | |
| CN105137918A (en) | Method for controlling stepping motor to drive numerical control sliding table by PLC | |
| CN209491223U (en) | Moveable platform of press | |
| CN209830323U (en) | Based on industrial production is with location perforating device | |
| CN209777467U (en) | Intermittent automatic feeder | |
| CN102953244B (en) | Method and device for controlling synchronous operating of sewing equipment stitching and feeding motors | |
| CN103862324A (en) | Automatic control system for slotting machine | |
| CN202886936U (en) | Roller surface laser texturing numerical control system | |
| CN1430118A (en) | Automation equipment location control mechanism | |
| CN208729164U (en) | A kind of miniature electric advancing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 310000 rooms 106 and 107, 1f, Yifu science and technology building, East District, China University of metrology, 258 Xueyuan street, Qiantang New District, Hangzhou, Zhejiang Patentee after: Hangzhou Qinhu Technology Co.,Ltd. Address before: Yifu science and technology building, East District, China University of metrology, 258 Xueyuan street, Hangzhou Economic and Technological Development Zone, Zhejiang Province, 310018 Patentee before: Hangzhou Qinhu Intelligent Equipment Co.,Ltd. |
|
| CP03 | Change of name, title or address |