CN104727004A - Electronic weft accumulator - Google Patents
Electronic weft accumulator Download PDFInfo
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- CN104727004A CN104727004A CN201310699686.3A CN201310699686A CN104727004A CN 104727004 A CN104727004 A CN 104727004A CN 201310699686 A CN201310699686 A CN 201310699686A CN 104727004 A CN104727004 A CN 104727004A
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- yarn
- microcontroller
- storage device
- motor
- weft
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Abstract
The invention discloses an electronic weft accumulator which comprises an accumulator drum used for driving yarns to move, a brushless direct current motor used for driving the accumulator drum to rotate, a microcontroller connected with the brushless direct current motor through a brushless direct current motor control circuit and used for controlling rotating speed of the brushless direct current motor, a rotor position sensor used for detecting rotating speed of the brushless direct current motor and transmitting signals to the microcontroller and a power module providing power for the microcontroller and the brushless direct current motor control circuit. By means of the electronic weft accumulator, the electric portion and the mechanical transmission portion can be integrated to achieve integration truly, the size and the material are reduced by 1/3, motor temperature is reduced by a half, and the power is saved by more than 40%.
Description
Technical field
The application belongs to field of textiles, particularly relates to a kind of electronic weft storage device.
Background technology
In loom running, to the requirement of weft accumulator be: the yarn that storage cylinder stores on the surface should supplement in time according to the consumption of loom to yarn, accomplish yarn storage amount substantially constant on storage cylinder, and should not occur that yarn is found time, excess rushes yarn phenomenon.
In the prior art, when realizing storage latitude function, generally to adopt following parts: winding yarn also can realize the transmission mechanism of speed governing, store and the yarn storage cylinder of drawn work, detecting element and detection signal is carried out to the controller etc. of fuzzy recognition spinning velocity.The transmission mechanism of existing weft accumulator, is made up of threephase asynchronous machine and AC converter, and the feedback signal of the usual not received code device of frequency converter, therefore can not carry out closed-loop control, easily causes excess to rush yarn and yarn finds time to cause broken yarn phenomenon.And detect with detecting element the way that weft yarn windings adjusts winding speed as feedback signal and not only increase manufacturing cost, but also add trouble point.In a word, existing weft accumulator has following several large shortcoming: (1) drives owing to have employed threephase asynchronous machine, causes that energy consumption is high, temperature rise; (2) in order to meet cooling requirements, adding area of dissipation, causing volume to increase, adding manufacturing cost; (3) owing to not carrying out closed-loop control, excess rushes yarn and yarn finds time to cause broken yarn phenomenon serious, affects production efficiency and fabric quality.
In view of this, be necessary to provide a kind of novel electronic weft storage device.
Summary of the invention
The object of the invention is to provide a kind of electronic weft storage device, solves in prior art the problem that weft accumulator volume is large, power consumption large, weft tension control is uneven and fault rate is high.
For achieving the above object, the invention provides following technical scheme:
A kind of electronic weft storage device, comprising:
Yarn storage drum, drives yarn to move;
Brshless DC motor, drives described yarn storage drum to rotate;
Microcontroller, is connected to described brshless DC motor by brushless DC motor control circuit, and controls the rotating speed of described brshless DC motor;
Rotor-position sensor, detects the rotating speed of brshless DC motor, and by Signal transmissions to microcontroller;
Power module, for microcontroller and brushless DC motor control circuit provide electric power.
Preferably, in above-mentioned electronic weft storage device, described brushless DC motor control circuit is three-phase inverting circuit.
Preferably, in above-mentioned electronic weft storage device, the switch in described three-phase inverting circuit adopts MOSFET or triode.
Preferably, in above-mentioned electronic weft storage device, also comprise the weft sensor detecting the upper yarn situation of described yarn storage drum, described microcontroller receives the detection signal of described weft sensor.
Preferably, in above-mentioned electronic weft storage device, described weft sensor comprises yarn break sensor and Yarn tension sensor.
Preferably, in above-mentioned electronic weft storage device, also comprise encoder, described microcontroller receives the feedback signal of described encoder.
Preferably, in above-mentioned electronic weft storage device, also comprise input module, described microcontroller receives the instruction of described input module.
Compared with prior art, the invention has the advantages that:
(1) the present invention adopts the brshless DC motor of trapezoidal magnetic flux, and export specific pulse width by microcontroller and carry out drive motors, so can obtain wider speed adjustable range, less percentage speed variation and level and smooth speed adjusting performance, reliability has had larger raising, and owing to have employed brshless DC motor, reduce energy consumption, temperature rise;
(2) the present invention is by rotor-position sensor, detects the rotating speed of brshless DC motor and by signal feedback to microcontroller, cost is low, and trouble point is few.
(3) feedback signal of microcontroller received code device of the present invention, can realize closed-loop control, the broken yarn phenomenon avoiding excess to rush yarn and yarn finding time to cause.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Figure 1 shows that the block diagram of system of electronic weft storage device in the specific embodiment of the invention;
Figure 2 shows that the control principle drawing of electronic weft storage device in the specific embodiment of the invention.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.The example of these preferred embodiments illustrates in the accompanying drawings.Shown in accompanying drawing and the embodiments of the present invention described with reference to the accompanying drawings be only exemplary, and the present invention is not limited to these embodiments.
Shown in ginseng Fig. 1, in the embodiment of the present invention, electronic weft storage device comprises yarn storage drum, and yarn storage drum moves in order to drive yarn.
Electronic weft storage device also comprises the brshless DC motor of trapezoidal magnetic flux, and this brshless DC motor rotates in order to drive yarn storage drum.Adopt brshless DC motor to drive yarn storage drum, energy consumption is low, temperature rise is low.
Electronic weft storage device also comprises microcontroller, and microcontroller is connected to brshless DC motor by brushless DC motor control circuit, and controls the rotating speed of brshless DC motor.
Microcontroller can comprise microprocessor (MCU), this MCU can comprise CPU (Central Processing Unit, CPU), read-only memory module (read-onlymemory, ROM), random memory module (random access memory, RAM), time block, digital-to-analogue conversion module (A/D converter) and plural I/O port.Certainly, microcontroller also can adopt the integrated circuit of other form, as: application-specific IC (Application Specific Integrated Circuit, ASIC) or field programmable gate arrays (Field Programmable Gate Array, FPGA) etc.
Microcontroller, comprises weft tension control circuit, and this weft tension control circuit is to the linear prediction entering the weft yarn time of advent, can while reduction weft tension, adjustment weft yarn time of advent irregular, thus stablize the state of flight of weft yarn, stablize weft tension.
Also comprise tenslator between electronic weft storage device and main burner, this tenslator is made up of compressed gas source, pressure-reducing valve, electromagnetic proportional valve, stepper motor, ceramic rod etc.During free wefting insertion, ceramic rod does not contact with weft yarn, reach home the time period at weft yarn, stepper motor drives ceramic rod to rotate certain angle, make it and yarn contacts, produce certain frictional resistance, absorb the remaining kinetic energy of weft yarn, thus reduce elastic potential energy, reach reduction weft yarn and extend the peak tension caused.
Shown in ginseng Fig. 2, brushless DC motor control circuit is preferably three-phase inverting circuit, and the switching device of inverter circuit preferably adopts triode.
As is well known in the art, switching device can comprise the common switch form such as triode, controllable silicon, relay switch or metal oxide semiconductor field effect tube (Metallic OxideSemiconductor Field Effect transistor, MOSFET).
The present invention adopts the brshless DC motor of trapezoidal magnetic flux, and exports specific pulse width by microcontroller and carry out drive motors, and so can obtain wider speed adjustable range, less percentage speed variation and level and smooth speed adjusting performance, reliability has had larger raising.
After brshless DC motor adopts Ru-Fe-Mn permanent magnet excitation, both the good governor control characteristics of electric excitation dc motor and mechanical property had been remained, also because eliminating Exciting Windings for Transverse Differential Protection and excitation loss and having that structural manufacturing process is simple, volume is little, copper consumption is few, efficiency high.
Electronic weft storage device also comprises rotor-position sensor, and it is in order to detect the speed of brushless DC motor rotor, and by signal feedback to microcontroller.
Rotor-position sensor detects the position of main rotor in motion process, convert the position signalling of rotor magnetic steel magnetic pole to the signal of telecommunication, for logic switching circuit provides correct commutation information, to control their conducting and cut-off, electric current in motor armature winding is commutated in order along with the change of rotor-position, form step-type rotating excitation field in air gap, drive p-m rotor continuously to rotate.
The present invention by rotor-position sensor, detects the rotating speed of brshless DC motor and by signal feedback to microcontroller, cost is low, and trouble point is few.
Electronic weft storage device also comprises the weft sensor detecting the upper yarn situation of yarn storage drum, and microcontroller receives the detection signal of weft sensor.
Weft sensor comprises yarn break sensor and Yarn tension sensor, and wherein, yarn break sensor is in order to detect broken yarn; Yarn tension sensor is in order to detect tension force.
The feedback signal of microcontroller also received code device.The feedback signal of microcontroller received code device, can realize closed-loop control, the broken yarn phenomenon avoiding excess to rush yarn and yarn finding time to cause.Encoder is a kind of detecting element, calculates motor speed by umber of pulse in the unit of account time.
Electronic weft storage device also comprises input module, and input module is preferably action button, and control instruction is supplied to microcontroller by it.
Electronic weft storage device also comprises power supply, and power supply is three-phase inverting circuit, microcontroller and encoder provide electric power.
The operation principle of above-mentioned weft accumulator is as follows:
Microcontroller is connected with power supply, inverter circuit is connected with power supply, encoder is connected with power supply, respectively by being in preparation state after power source, when after the working signal that microcontroller receives action button and weaving loom, export specific pulse width and enter duty to inverter circuit to drive brshless DC motor.Microcontroller is the analog signal that exports of real-time reception encoder and weft sensor and rotor position sensing also; after three groups of data compare calculating, export specific pulse width and carry out corresponding speeds control or carry out shutdown to brshless DC motor, weaving loom controlling to brshless DC motor to inverter circuit.
Electronic weft storage device in the present embodiment and traditional weft accumulator are carried out power test respectively, and test comparison table is as follows:
In sum, the invention has the advantages that:
(1) the present invention adopts the brshless DC motor of trapezoidal magnetic flux, and export specific pulse width by microcontroller and carry out drive motors, so can obtain wider speed adjustable range, less percentage speed variation and level and smooth speed adjusting performance, reliability has had larger raising, and owing to have employed brshless DC motor, reduce energy consumption, temperature rise;
(2) the present invention is by rotor-position sensor, detects the rotating speed of brshless DC motor and by signal feedback to microcontroller, cost is low, and trouble point is few.
(3) feedback signal of microcontroller received code device of the present invention, can realize closed-loop control, the broken yarn phenomenon avoiding excess to rush yarn and yarn finding time to cause.
(4) the present invention can not only make electric part and mechanical driving part combine together, realizes integration truly, and make volume, material reduce 1/3rd, motor temperature reduces half, and can using electricity wisely more than 40%.
At this, also it should be noted that, in order to avoid the present invention fuzzy because of unnecessary details, illustrate only in the accompanying drawings with according to the closely-related structure of the solution of the present invention and/or treatment step, and eliminate other details little with relation of the present invention.
Finally, also it should be noted that, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.
Claims (7)
1. an electronic weft storage device, is characterized in that, comprising:
Yarn storage drum, drives yarn to move;
Brshless DC motor, drives described yarn storage drum to rotate;
Microcontroller, is connected to described brshless DC motor by brushless DC motor control circuit, and controls the rotating speed of described brshless DC motor;
Rotor-position sensor, detects the rotating speed of brshless DC motor, and by Signal transmissions to microcontroller;
Power module, for microcontroller and brushless DC motor control circuit provide electric power.
2. electronic weft storage device according to claim 1, is characterized in that: described brushless DC motor control circuit is three-phase inverting circuit.
3. electronic weft storage device according to claim 2, is characterized in that: the switch in described three-phase inverting circuit adopts MOSFET or triode.
4. electronic weft storage device according to claim 1, is characterized in that: also comprise the weft sensor detecting the upper yarn situation of described yarn storage drum, described microcontroller receives the detection signal of described weft sensor.
5. electronic weft storage device according to claim 4, is characterized in that: described weft sensor comprises yarn break sensor and Yarn tension sensor.
6. electronic weft storage device according to claim 1, is characterized in that: also comprise encoder, described microcontroller receives the feedback signal of described encoder.
7. electronic weft storage device according to claim 1, is characterized in that: also comprise input module, described microcontroller receives the instruction of described input module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310699686.3A CN104727004A (en) | 2013-12-18 | 2013-12-18 | Electronic weft accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310699686.3A CN104727004A (en) | 2013-12-18 | 2013-12-18 | Electronic weft accumulator |
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| CN104727004A true CN104727004A (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310699686.3A Pending CN104727004A (en) | 2013-12-18 | 2013-12-18 | Electronic weft accumulator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991908A (en) * | 2019-05-14 | 2019-07-09 | 河北工业大学 | A kind of weft accumulator control system based on STM32 single-chip microcontroller |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2506663Y (en) * | 2001-05-11 | 2002-08-21 | 陕西汉江纺织有限责任公司 | Power supply control device of weft accumulator |
| JP2008002032A (en) * | 2006-06-23 | 2008-01-10 | Tagawa Kikai Kk | Method for feeding weft yarn in loom |
| CN202433712U (en) * | 2011-11-15 | 2012-09-12 | 浙江理工大学 | Electronic control device for photoelectric weft accumulator |
| CN203487333U (en) * | 2013-05-28 | 2014-03-19 | 宿迁华宇纺织机电有限公司 | Electronic weft feeder driven by brushless direct current motor |
-
2013
- 2013-12-18 CN CN201310699686.3A patent/CN104727004A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2506663Y (en) * | 2001-05-11 | 2002-08-21 | 陕西汉江纺织有限责任公司 | Power supply control device of weft accumulator |
| JP2008002032A (en) * | 2006-06-23 | 2008-01-10 | Tagawa Kikai Kk | Method for feeding weft yarn in loom |
| CN202433712U (en) * | 2011-11-15 | 2012-09-12 | 浙江理工大学 | Electronic control device for photoelectric weft accumulator |
| CN203487333U (en) * | 2013-05-28 | 2014-03-19 | 宿迁华宇纺织机电有限公司 | Electronic weft feeder driven by brushless direct current motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991908A (en) * | 2019-05-14 | 2019-07-09 | 河北工业大学 | A kind of weft accumulator control system based on STM32 single-chip microcontroller |
| CN109991908B (en) * | 2019-05-14 | 2023-09-26 | 河北工业大学 | Weft accumulator control system based on STM32 singlechip |
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Effective date of registration: 20160808 Address after: 215002 12 groups of Lotus Village, Shengze Town, Wujiang District, Jiangsu, Suzhou Applicant after: Suzhou Hua Ge Electrical Appliance Technology Co., Ltd. Address before: 215228 12 groups of Lotus Village, Shengze Town, Wujiang District, Jiangsu, Suzhou Applicant before: Wujiang Zhenyu Electromechanical Integration Technology Research Center |
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Application publication date: 20150624 |
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