CN202219275U - Extrusion speed control system for extruder - Google Patents
Extrusion speed control system for extruder Download PDFInfo
- Publication number
- CN202219275U CN202219275U CN2011202884475U CN201120288447U CN202219275U CN 202219275 U CN202219275 U CN 202219275U CN 2011202884475 U CN2011202884475 U CN 2011202884475U CN 201120288447 U CN201120288447 U CN 201120288447U CN 202219275 U CN202219275 U CN 202219275U
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- speed
- frequency converter
- extrusion speed
- extruder
- module
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses an extrusion speed control system for an extruder, which comprises a programmable logic controller (PLC) module, a display module connected onto the PLC module, and a nonsense vector frequency converter. The PLC module is connected with an extrusion cylinder of the extruder through a speed collection device, and the nonsense vector frequency converter is connected with an oil pump motor. Extrusion speed of the extruder is set on the PLC module through the display module, the speed collection device acquires the extrusion speed of the extrusion cylinder in the working state and feeds the extrusion speed back to the PLC module which compares feedback data of the speed collection device with the data set by the display module to obtain revised data fed back to the nonsense vector frequency converter, the nonsense vector frequency converter controls the rotation speed of the oil pump motor according to the revised data so as to control the extrusion speed.
Description
Technical field
The utility model relates to technical field of automatic control, especially the extrusion speed of extruder control system.
Background technology
Extruder is the equipment that metal material is extruded to shape through automatic control.The extrusion speed control of extruder has significance to production.The extruder of usefulness has following defective at present: extrusion speed is unstable, influences product quality and lumber recovery; Extrusion speed can not be regulated and control, and the extruding workpiece surface quality can not improve; Extruder power consumption is big, and cost of goods manufactured improves.
Along with the raising that the client requires product specification, quality, the performance requirement of being developed new product are higher, and be corresponding to the more strict requirement of the adjustable controlled proposition of the extrusion speed of extrusion equipment.But because there is above-mentioned defective in existing extrusion equipment, cause the new product development of the high-end trade mark not carry out, can't satisfy client's demand.
Summary of the invention
The utility model problem to be solved just provides a kind of extruder extrusion speed and controls system, realizes the automatic adjusting of extruder extrusion speed, and control is stable, precision is high, reaction speed is fast, satisfies the technological requirement of new product development.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of extruder extrusion speed is controlled system, it is characterized in that: comprise the PLC module, be connected display module and sensorless vector frequency converter on the PLC module; Said PLC module is through the squeeze cylinder of speed acquisition device connection extruder, and said sensorless vector frequency converter is connected with Oil pump electrical machinery; On the PLC module, set the extrusion speed of squeeze cylinder through display module; The speed acquisition device obtains the extrusion speed under the squeeze cylinder duty and feeds back to the PLC module; The data that the PLC module is set the feedback data of speed acquisition device and display module compare to draw and revise data and feed back on the sensorless vector frequency converter;, control according to revising Data Control Oil pump electrical machinery rotating speed by the sensorless vector frequency converter to realize extrusion speed.
Further, said speed acquisition device is a rotary encoder.
The beneficial effect of the utility model:
1, sensorless vector frequency converter reaction speed is fast, and velocity accuracy high and low frequency moment is big, overload capacity is strong, can realize that the motor zero-speed loads startup fast;
2, realize directly setting functions such as the extrusion speed of squeeze cylinder, real-time display speed data, comparison setting data and operational data through display module, PLC module and speed acquisition device; Have sample frequency height, short characteristics of sampling period, can make response timely,, fully satisfy the requirement of system in conjunction with the fast characteristics of sensorless vector frequency converter response speed to the running status of pushing period;
3, after the utility model used, extrusion speed can independently be set according to the product technological requirement, and can be by the velocity amplitude stable operation of setting, and other operations are constant with the original system operation.Because of system's major control signal all adopts the intrinsic signal of original system, the entire equipment control module does not have big change, so system maintenance is also just simple relatively, has created condition to keeping system's operation steady in a long-term.
Description of drawings
Below in conjunction with accompanying drawing the utility model is done further explanation:
Fig. 1 is the operation principle block diagram of the utility model.
The specific embodiment
With reference to Fig. 1, a kind of extruder extrusion speed control of the utility model system comprises PLC module 1, is connected display module 2 and sensorless vector frequency converter 4 on the PLC module 1; Said PLC module 1 is through the squeeze cylinder 6 of speed acquisition device 3 connection extruders, and said sensorless vector frequency converter 4 is connected with Oil pump electrical machinery 5; On PLC module 1, set the extrusion speed of squeeze cylinder 6 through display module 2; Speed acquisition device 3 obtains the extrusion speed under squeeze cylinder 6 duties and feeds back to PLC module 1; The data that PLC module 1 is set the feedback data of speed acquisition device 3 and display module 2 compare to draw and revise data and feed back on the sensorless vector frequency converter 4;, control according to revising Data Control Oil pump electrical machinery 5 rotating speeds by sensorless vector frequency converter 4 to realize extrusion speed.Speed acquisition device 3 is a rotary encoder.
Claims (2)
1. an extruder extrusion speed control system is characterized in that: comprise PLC module (1), be connected display module (2) and sensorless vector frequency converter (4) on the PLC module (1); Said PLC module (1) is through the squeeze cylinder (6) of speed acquisition device (3) connection extruder, and said sensorless vector frequency converter (4) is connected with Oil pump electrical machinery (5); Go up the extrusion speed of setting squeeze cylinder (6) in PLC module (1) through display module (2); Speed acquisition device (3) obtains the extrusion speed under squeeze cylinder (6) duty and feeds back to PLC module (1); The data that PLC module (1) is set the feedback data of speed acquisition device (3) and display module (2) compare to draw and revise data and feed back on the sensorless vector frequency converter (4);, control according to revising Data Control Oil pump electrical machinery (5) rotating speed by sensorless vector frequency converter (4) to realize extrusion speed.
2. a kind of extruder extrusion speed according to claim 1 is controlled system, and it is characterized in that: said speed acquisition device (3) is a rotary encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202884475U CN202219275U (en) | 2011-08-10 | 2011-08-10 | Extrusion speed control system for extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202884475U CN202219275U (en) | 2011-08-10 | 2011-08-10 | Extrusion speed control system for extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202219275U true CN202219275U (en) | 2012-05-16 |
Family
ID=46041313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202884475U Expired - Lifetime CN202219275U (en) | 2011-08-10 | 2011-08-10 | Extrusion speed control system for extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202219275U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784810A (en) * | 2012-08-16 | 2012-11-21 | 广东富华重工制造有限公司 | Control system of car axle extrusion molding device |
| CN108556406A (en) * | 2018-05-09 | 2018-09-21 | 广东工业大学 | A kind of extruder extrusion speed control method and system |
| CN111873144A (en) * | 2020-08-13 | 2020-11-03 | 四川省劲腾环保建材有限公司 | Method for adjusting running speed of automatic wallboard forming extruder |
-
2011
- 2011-08-10 CN CN2011202884475U patent/CN202219275U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784810A (en) * | 2012-08-16 | 2012-11-21 | 广东富华重工制造有限公司 | Control system of car axle extrusion molding device |
| CN102784810B (en) * | 2012-08-16 | 2015-04-08 | 广东富华重工制造有限公司 | Control system of car axle extrusion molding device |
| CN108556406A (en) * | 2018-05-09 | 2018-09-21 | 广东工业大学 | A kind of extruder extrusion speed control method and system |
| CN111873144A (en) * | 2020-08-13 | 2020-11-03 | 四川省劲腾环保建材有限公司 | Method for adjusting running speed of automatic wallboard forming extruder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120516 |
|
| CX01 | Expiry of patent term |