CN103128642A - Tile polishing machine and dedicated automatic-control electricity saving system - Google Patents

Tile polishing machine and dedicated automatic-control electricity saving system Download PDF

Info

Publication number
CN103128642A
CN103128642A CN2011103854109A CN201110385410A CN103128642A CN 103128642 A CN103128642 A CN 103128642A CN 2011103854109 A CN2011103854109 A CN 2011103854109A CN 201110385410 A CN201110385410 A CN 201110385410A CN 103128642 A CN103128642 A CN 103128642A
Authority
CN
China
Prior art keywords
ceramic tile
control module
conveying device
polisher
module
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.)
Pending
Application number
CN2011103854109A
Other languages
Chinese (zh)
Inventor
刘秋辉
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.)
GUANGZHOU ZHUFENG ELECTRIC CO Ltd
Original Assignee
GUANGZHOU ZHUFENG ELECTRIC 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 GUANGZHOU ZHUFENG ELECTRIC CO Ltd filed Critical GUANGZHOU ZHUFENG ELECTRIC CO Ltd
Priority to CN2011103854109A priority Critical patent/CN103128642A/en
Publication of CN103128642A publication Critical patent/CN103128642A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The invention relates to the field of tile production devices, in particular to a tile polishing device and a dedicated automatic-control electricity saving system. The tile polishing machine comprises the tile polishing machine automatic-control electricity saving system and a conveying device, a detector of a grinding machine is arranged beside the front portion of the conveying device, an edge grinding machine and a leveling machine are arranged on two sides of the conveying device, and a coarse-polishing grinding machine and a fine-polishing grinding machine are sequentially arranged on the rear portion of the conveying device. The tile polishing machine automatic-control electricity saving system is connected with mechanical components and electric components of the tile polishing machine and comprises a central processing unit (CPU) module and a driving control module, a current control module, a voltage control module and a communication control module, wherein the driving control module, the current control module, the voltage control module and the communication control module are electrically connected with the CPU module. Energy is saved in a tile polishing technology, and a stable tile polishing effect is guaranteed.

Description

Ceramic tile polisher and Special Automatic control power saving apparatus
Technical field
The present invention relates to the production equipment for ceramic tiles field, a kind of ceramic tile polisher and Special Automatic control power saving apparatus specifically are provided.
Background technology
Along with the fast development of China's economy, energy situation shows the situation of growing tension in recent years, and forms bottom, forms top is energy shortage on the one hand, causes for various reasons on the other hand very large energy waste.Chinese Government has made the formal commitment will realize energy-conservation 20% target during 11th Five-Year.During 11th Five-Year, energy-saving and cost-reducing 20% relationship by objective (RBO) is to China's sustainable development.Therefore conscientiously carry out the energy-saving and cost-reducing target during 11th Five-Year, will have influence on country long-range developing goal and development strategy.Energy problem is not merely the problem of energy resource consumption and the equilibrium of supply and demand, simultaneously or one has influence on international relations, environmental protection, the Vital Strategic Problems of sustainable development.Therefore, carry out by all kinds of means from every side power-saving technology and use and transform, become Future in China extremely important work in several years.Electric energy is as the most general a kind of energy city, the most directly reflected the technical merit of a country and to the situation of utilizing of the energy.
The personnel of world today's each side are making great efforts to improve electricity consumption effect.China's production of energy and consume at the forefront in the world.But still can not meet the needs of growing industrial production and people's lives.The neck of enterprise development has been blocked in severe power shortage.Short of electricity becomes the bottleneck of restriction Economic Growth.National industrial electric weight in 2005 is about 1768.3 hundred million kilowatt hours according to statistics, according to system according to accounting for 72% left and right of national power consumption.On this electricity consumption basis, China every year is manyed the electric energy of consumption 1768.3 hundred million kilowatt hours than developed country.
Wherein ceramic relevant industries are one of high energy consumption enterprises.China is ceramic tile big producing country, and ceramic tile industry development speed was very fast in recent years.China's ceramic tile account for world wide production near half.In ceramic tile manufacturing enterprise, polishing departement is one of main workshop of production polished bricks, is also the energy consumption rich and influential family of ceramic tile factory, is only second to raw material handling plant.
Traditional polishing machine a kind of ceramic tile polisher as disclosed in the CN201271818 Chinese patent comprises conveying device, is arranged on the ceramic tile workpiece polishing mechanism of ceramic tile conveying device top.The invariablenes turning speed of sander is non-adjustable, and when adobe sintering degree changed, polishing ceramic tile out fell flat sometimes, can only adjust from adjusting wheelhead pressure, realizes polishing effect with the pressure of regulating bistrique.Polish line is without the automatic detection control system simultaneously, when production changes or when breaking down, grinding head for polishing speed still constant, the power output of polishing machine motor can not be mated with the actual load demand, usually needing greater than actual load, is the reason that causes the polish line energy consumption high.A general polishing production line total installation of generating capacity is greatly about the 800KW left and right, and polishing machine has accounted for 60% of polishing production line total installation of generating capacity.The polishing machine installed capacity is large, and energy consumption is high, production cost is high is the problem of the maximum that faces of Ceramics Enterprises, thus the polishing machine economize on electricity be enterprise development inexorable trend and in the urgent need to.
The energy consumption of polishing machine is high, installed capacity is large, is because the power output of conventional polisher motor is constant, usually needs to cause greater than actual load.
Summary of the invention
For problems of the prior art, the object of the present invention is to provide a kind of ceramic tile polisher and Special Automatic control power saving apparatus, realize the ceramic polishing energy saving technology and ensure that ceramic tile obtains stable polishing effect.
To achieve these goals, the invention provides following technical scheme:
A kind of ceramic tile polisher of the present invention comprises special-purpose ceramic tile polisher automatic control electricity-saving system, also comprises conveying device and sander.Leading portion side in conveying device is provided with detector, and both sides are provided with edge polisher and Slicking apparatus.Back segment in conveying device is provided with rough polishing sander and essence throwing sander successively.
Described ceramic tile polisher automatic control electricity-saving system is connected with machinery and the electric component of ceramic tile polisher, it is characterized in that: comprise CPU module and the drive control module, current control module, voltage control module and the communication control module that are electrically connected to it.Described CPU module is loaded with software, is used for the data-signal between each link block of logic.Described drive control module is used for controlling the conveying device drive motors of ceramic tile polisher and switch, the rotating speed of sander motor.Described current control module is for the operating current of controlling motor and each module.Described voltage control module is for the operating voltage of controlling motor and each module.Described communication control module comprises signal output apparatus and signal receiving circuit, is used for access telephone network or the Internet network, realizes the long-range conveying of control signal.
Preferably, ceramic tile polisher automatic control electricity-saving system also comprises the fineness probe that is connected with the CPU module, is used for surveying the surface smoothness of the ceramic tile of processing and data being inputted the CPU module.Described CPU module comprises fineness set point adjustment device and PID controller, compare and PID calculating by ceramic tile surface fineness data and the fineness setting value that the fineness probe is gathered, output data to drive control module is regulated the conveying device drive motors of ceramic tile polisher and the rotating speed of sander motor.During greater than setting value, the rotating speed of the conveying device drive motors of ceramic tile polisher reduces when ceramic tile surface fineness data and fineness setting value difference, and the rotating speed of sander motor improves.During less than setting value, the rotating speed of the conveying device drive motors of ceramic tile polisher improves when ceramic tile surface fineness data and fineness setting value difference, and the rotating speed of sander motor reduces.
Preferably, ceramic tile polisher automatic control electricity-saving system also comprises the detector on the conveying device side that is arranged at ceramic tile polisher, is connected with the CPU module, will detect the frequency signal input CPU module of every ceramic tile.The CPU module by drive control module, is regulated the conveying device drive motors of ceramic tile polisher and rotating speed and the switch of sander motor according to frequency signal.
Preferably, the described detector frequency signal that will detect every ceramic tile converts input CPU module after the voltage signal of 0~10V to.
Preferably, described CPU module also comprises sintering degree set point adjustment device, and drive control module is according to the rotating speed of sintering degree set point adjustment sander motor.
Preferably, described drive control module comprises frequency converter.
Preferably, be provided with digital processing circuit and full-automatic phased chip in the motor of described conveying device and sander.
Preferably, the working power input of described ceramic tile polisher automatic control electricity-saving system is provided with the copped wave power cell.
Preferably, the working power input of described ceramic tile polisher automatic control electricity-saving system is provided with some groups of jumbo electric capacity and reactor.
Ceramic tile polisher of the present invention and Special Automatic control power saving apparatus have following beneficial effect:
Ceramic tile polisher of the present invention and Special Automatic control power saving apparatus according to surface smoothness, sintering degree and the density of ceramic tile on conveying device of processing ceramic tile, are dynamically regulated rotating speed and the switch of conveying device motor and sander motor.It is required that the power of polishing machine output just satisfies polished glazed tile, avoided surpassing the power stage of demand, and therefore the power stage when having avoided unloaded reaches the effect of energy-saving and emission-reduction.Polishing machine is according to the difference of ceramic tile sintering degree, in the situation that the conveying device constant airspeed, the rotating speed of adjusting sander motor has guaranteed to have after the ceramic polishing identical polishing effect.
Description of drawings
Fig. 1 is the structural scheme of mechanism of ceramic tile polisher automatic control electricity-saving of the present invention system;
Fig. 2 is the structural scheme of mechanism of ceramic tile polisher of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples, technical solution of the present invention is further illustrated, is not considered as limiting the scope of the invention:
As shown in Figure 1 and Figure 2, a kind of ceramic tile polisher of the present invention comprises special-purpose ceramic tile polisher automatic control electricity-saving system, also comprises conveying device and sander.Sander comprises rough polishing sander, essence throwing sander, edge polisher and Slicking apparatus.Leading portion side in conveying device is provided with detector, and both sides are provided with edge polisher and Slicking apparatus.Detector is infrared ray electric eye detector, is used for surveying the density of ceramic tile on conveying device.Edge polisher is used for the lateral edge of polishing ceramic tile.Slicking apparatus strikes off the surperficial roughing of ceramic tile.Back segment in conveying device is provided with rough polishing sander and essence throwing sander successively.
Described ceramic tile polisher automatic control electricity-saving system is connected with machinery and the electric component of ceramic tile polisher, comprises CPU module and the drive control module, current control module, voltage control module and the communication control module that are electrically connected to it.Described CPU module is loaded with software, is used for the data-signal between each link block of logic.Described drive control module is for conveying device drive motors, sander motor, edge work dynamoelectric machine, the switch of Slicking apparatus motor, the rotating speed of controlling ceramic tile polisher.Described current control module is for the operating current of controlling motor and each module.Described voltage control module is for the operating voltage of controlling motor and each module.Described communication control module comprises signal output apparatus and signal receiving circuit, is used for access telephone network or the Internet network, realizes the long-range conveying of control signal.
Preferably, ceramic tile polisher automatic control electricity-saving system also comprises the fineness probe that is connected with the CPU module, is used for surveying the surface smoothness of the ceramic tile of processing and data being inputted the CPU module.Described CPU module comprises fineness set point adjustment device and PID controller, compare and PID calculating by ceramic tile surface fineness data and the fineness setting value that the fineness probe is gathered, output data to drive control module is regulated the conveying device drive motors of ceramic tile polisher and the rotating speed of sander motor.During greater than setting value, the rotating speed of the conveying device drive motors of ceramic tile polisher reduces when ceramic tile surface fineness data and fineness setting value difference, and the rotating speed of sander motor improves.During less than setting value, the rotating speed of the conveying device drive motors of ceramic tile polisher improves when ceramic tile surface fineness data and fineness setting value difference, and the rotating speed of sander motor reduces.
Preferably, ceramic tile polisher automatic control electricity-saving system also comprises the detector on the conveying device side that is arranged at ceramic tile polisher, is connected with the CPU module, will detect the frequency signal input CPU module of every ceramic tile.The CPU module by drive control module, is regulated the conveying device drive motors of ceramic tile polisher and rotating speed and the switch of sander motor according to frequency signal.When production line broke down, detector sent signal, and the CPU module receives automatic alarm after signal, with decelerating through motor or shutdown.When detector detected that on conveying device, ceramic tile is more sparse, the CPU module output signal was regulated ceramic tile and is arranged and reach requirement density.Set the long time period when flowing through without ceramic tile when detector detects on conveying device, the CPU module output signal is to drive control module, disable motor.When the output increasing, when conveying device was told running, the CPU module output signal correspondingly improved the rotating speed of sander motor to drive control module.
Preferably, the frequency signal that described detector will detect every ceramic tile converts input CPU module after the voltage signal of 0~10V to, according to the rotating speed of the numerical value regulating electric machine of voltage signal.
Preferably, described CPU module also comprises sintering degree set point adjustment device, and drive control module is according to the rotating speed of sintering degree set point adjustment sander motor.In the situation that the conveying device constant airspeed, when the high ceramic tile of polishing sintering degree, improve the rotating speed of sander motor, reach identical polishing effect after can ensureing the ceramic polishing of different sintering degree, obtain stable product quality.
Preferably, described drive control module comprises frequency converter, the rotating speed of the mode regulating electric machine by frequency conversion, or realize improving the soft start of motor the stability of equipment and reduce starting current.
Preferably, be provided with digital processing circuit and full-automatic phased chip in the motor of described conveying device and sander.Automatically detect external voltage signal and the power factor signal of motor feedback and carry out conversion process, make motor realize optimum operation under low-pressure state, realize the system protection function.
Preferably, the working power input of described ceramic tile polisher automatic control electricity-saving system is provided with the copped wave power cell.The copped wave power cell has wider voltage power supply scope, all can normally move in supply voltage ± 30% fluctuation range, and power cell and master control system adopt optical-fibre communications, have solved electrical isolation and electromagnetic interference problem between strong and weak electricity.All power cell structure of system and electric property are in full accord, can directly exchange, and have guaranteed Security of the system and reliability.
Preferably, the working power input of described ceramic tile polisher automatic control electricity-saving system is provided with some groups of jumbo electric capacity and reactor.According to the load variations situation, the compensation of automatic power adjustment factor, power factor compensation improves can reach 99%.

Claims (10)

1. ceramic tile polisher automatic control electricity-saving system, be connected with machinery and the electric component of ceramic tile polisher, it is characterized in that: comprise CPU module and the drive control module, current control module, voltage control module and the communication control module that are electrically connected to it;
Described CPU module is loaded with software, is used for the data-signal between each link block of logic;
Described drive control module is used for controlling the conveying device drive motors of ceramic tile polisher and switch, the rotating speed of sander motor;
Described current control module is for the operating current of controlling motor and each module;
Described voltage control module is for the operating voltage of controlling motor and each module;
Described communication control module comprises signal output apparatus and signal receiving circuit, is used for access telephone network or the Internet network, realizes the long-range conveying of control signal.
2. ceramic tile polisher automatic control electricity-saving as claimed in claim 1 system, is characterized in that: also comprise the fineness probe that is connected with the CPU module, be used for surveying the surface smoothness of the ceramic tile of processing and data being inputted the CPU module; Described CPU module comprises fineness set point adjustment device and PID controller, compare and PID calculating by ceramic tile surface fineness data and the fineness setting value that the fineness probe is gathered, output data to drive control module is regulated the conveying device drive motors of ceramic tile polisher and the rotating speed of sander motor; During greater than setting value, the rotating speed of the conveying device drive motors of ceramic tile polisher reduces when ceramic tile surface fineness data and fineness setting value difference, and the rotating speed of sander motor improves; During less than setting value, the rotating speed of the conveying device drive motors of ceramic tile polisher improves when ceramic tile surface fineness data and fineness setting value difference, and the rotating speed of sander motor reduces.
3. ceramic tile polisher automatic control electricity-saving as claimed in claim 1 or 2 system is characterized in that: also comprise the detector on the conveying device side that is arranged at ceramic tile polisher, be connected with the CPU module, will detect the frequency signal input CPU module of every ceramic tile; The CPU module by drive control module, is regulated the conveying device drive motors of ceramic tile polisher and rotating speed and the switch of sander motor according to frequency signal.
4. ceramic tile polisher automatic control electricity-saving as claimed in claim 3 system is characterized in that: the frequency signal that described detector will detect every ceramic tile converts input CPU module after the voltage signal of 0~10V to.
5. as claim 1,2 or 3 described ceramic tile polisher automatic control electricity-saving systems, it is characterized in that: described CPU module also comprises sintering degree set point adjustment device, and drive control module is according to the rotating speed of sintering degree set point adjustment sander motor.
6. as claim 1,2 or 3 described ceramic tile polisher automatic control electricity-saving systems, it is characterized in that: described drive control module comprises frequency converter.
7. ceramic tile polisher comprises ceramic tile polisher automatic control electricity-saving as claimed in claim 1 system also comprising conveying device and sander; Leading portion side in conveying device is provided with detector, and both sides are provided with edge polisher and Slicking apparatus; Back segment in conveying device is provided with rough polishing sander and essence throwing sander successively.
8. ceramic tile polisher as claimed in claim 7, is characterized in that: be provided with digital processing circuit and full-automatic phased chip in the motor of described conveying device and sander.
9. ceramic tile polisher as claimed in claim 7 is characterized in that: the working power input of described ceramic tile polisher automatic control electricity-saving system is provided with the copped wave power cell.
10. ceramic tile polisher as claimed in claim 7 is characterized in that: the working power input of described ceramic tile polisher automatic control electricity-saving system is provided with some groups of jumbo electric capacity and reactor.
CN2011103854109A 2011-11-29 2011-11-29 Tile polishing machine and dedicated automatic-control electricity saving system Pending CN103128642A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011103854109A CN103128642A (en) 2011-11-29 2011-11-29 Tile polishing machine and dedicated automatic-control electricity saving system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011103854109A CN103128642A (en) 2011-11-29 2011-11-29 Tile polishing machine and dedicated automatic-control electricity saving system

Publications (1)

Publication Number Publication Date
CN103128642A true CN103128642A (en) 2013-06-05

Family

ID=48489427

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011103854109A Pending CN103128642A (en) 2011-11-29 2011-11-29 Tile polishing machine and dedicated automatic-control electricity saving system

Country Status (1)

Country Link
CN (1) CN103128642A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103817599A (en) * 2013-12-05 2014-05-28 天水星火机床有限责任公司 Automatic control method of grinding machine for processing surfaces of objects
CN105549545A (en) * 2016-02-19 2016-05-04 泉州华中科技大学智能制造研究院 Control algorithm based on constant-linear speed grinding of edge grinding machine
CN106625182A (en) * 2017-01-13 2017-05-10 泉州市泉港智源商贸有限公司 Intelligent polishing machine based on internet of things
CN106670898A (en) * 2017-01-10 2017-05-17 本钢板材股份有限公司 Roller surface current decreasing type grinding process
CN107363672A (en) * 2017-08-11 2017-11-21 合肥卓立雅工程材料科技有限公司 A kind of rubber fastening band produces edging control system
CN108340275A (en) * 2018-04-25 2018-07-31 佛山聚晨知识产权运营有限公司 A kind of full electricity digitlization two-freedom degree force control grinding head device
CN113206573A (en) * 2021-07-02 2021-08-03 深圳百里科技有限公司 Ceramic tile production line transmission system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631632A (en) * 1966-06-23 1972-01-04 American Olean Tile Co Inc Tile edge grinding machine
CN2475224Y (en) * 2001-06-29 2002-01-30 葛炎 Change frequency speed regulating polisher
CN2902570Y (en) * 2005-11-03 2007-05-23 佛山市汉诺普机械有限公司 All drying type edger
CN2910476Y (en) * 2006-05-25 2007-06-13 广东科达机电股份有限公司 Networking control system of ceramic bricks polishing production line
CN201271818Y (en) * 2008-09-25 2009-07-15 刘永钦 Ceramic tile polisher
CN101797529A (en) * 2009-12-18 2010-08-11 深圳市伟创电气有限公司 Frequency conversion power saving control method of ball mill
CN201859335U (en) * 2010-10-28 2011-06-08 漯河瑞来信节能科技有限公司 Frequency-conversion energy-saving control system for ball mill

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631632A (en) * 1966-06-23 1972-01-04 American Olean Tile Co Inc Tile edge grinding machine
CN2475224Y (en) * 2001-06-29 2002-01-30 葛炎 Change frequency speed regulating polisher
CN2902570Y (en) * 2005-11-03 2007-05-23 佛山市汉诺普机械有限公司 All drying type edger
CN2910476Y (en) * 2006-05-25 2007-06-13 广东科达机电股份有限公司 Networking control system of ceramic bricks polishing production line
CN201271818Y (en) * 2008-09-25 2009-07-15 刘永钦 Ceramic tile polisher
CN101797529A (en) * 2009-12-18 2010-08-11 深圳市伟创电气有限公司 Frequency conversion power saving control method of ball mill
CN201859335U (en) * 2010-10-28 2011-06-08 漯河瑞来信节能科技有限公司 Frequency-conversion energy-saving control system for ball mill

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103817599A (en) * 2013-12-05 2014-05-28 天水星火机床有限责任公司 Automatic control method of grinding machine for processing surfaces of objects
CN105549545A (en) * 2016-02-19 2016-05-04 泉州华中科技大学智能制造研究院 Control algorithm based on constant-linear speed grinding of edge grinding machine
CN105549545B (en) * 2016-02-19 2018-06-08 泉州华中科技大学智能制造研究院 A kind of control algolithm based on the grinding of edge polisher constant linear velocity
CN106670898A (en) * 2017-01-10 2017-05-17 本钢板材股份有限公司 Roller surface current decreasing type grinding process
CN106670898B (en) * 2017-01-10 2019-04-19 本钢板材股份有限公司 Roller Surface Current Decreasing Grinding Process
CN106625182A (en) * 2017-01-13 2017-05-10 泉州市泉港智源商贸有限公司 Intelligent polishing machine based on internet of things
CN107363672A (en) * 2017-08-11 2017-11-21 合肥卓立雅工程材料科技有限公司 A kind of rubber fastening band produces edging control system
CN108340275A (en) * 2018-04-25 2018-07-31 佛山聚晨知识产权运营有限公司 A kind of full electricity digitlization two-freedom degree force control grinding head device
CN113206573A (en) * 2021-07-02 2021-08-03 深圳百里科技有限公司 Ceramic tile production line transmission system

Similar Documents

Publication Publication Date Title
CN103128642A (en) Tile polishing machine and dedicated automatic-control electricity saving system
CN104878969B (en) A kind of lift-sliding parking equipment of transducer drive
CN106160113B (en) A kind of charger power module intelligent power distribution control method
CN102644585A (en) Air compressor hybrid control system and method
CN103501014A (en) Intelligent reactive compensation controller device with master and slave functions
CN104162472A (en) Semi-automatic energy-saving magnetic ball grinding mill for lining plate
CN103773587B (en) A kind of mortar generated in silicon chip cutting online recycling method and device thereof
CN114890655A (en) Electric boosting power supply system for flexible glass kiln
CN202331139U (en) Control system for mercerizer
CN219477602U (en) Coal mine electricity consumption active energy-saving system based on SVG
CN203140121U (en) Outer circulation vertical mill system
CN103084259A (en) Outer circulation type vertical mill system
CN205883090U (en) Improve motor frequency conversion energy -saving control system for cement kiln
CN203027170U (en) Low voltage frequency converter with rotating speed tracing start function
CN203166769U (en) High voltage frequency converter having rotating speed tracking and starting function
CN201599196U (en) Power saving system of screw air compressor
CN204877896U (en) Air compressor machine electricity -saving appliance based on power nargin matching technique
CN201165444Y (en) Elevator power-saving device
CN210312130U (en) Double-motor double-roller conveyor variable-frequency driving system
CN215498788U (en) Frequency conversion energy-saving automatic control system
CN203009254U (en) Energy-saving controlling device of air compressor
CN204606951U (en) Belt feeder transducer power automatic balance device
CN219540497U (en) Improved continuous pulping ball mill
CN202221898U (en) Induction type high-power power-saving device
CN201681317U (en) Temperature control system for electrical heating rollers in rear drawing machine

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C05 Deemed withdrawal (patent law before 1993)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20130605