CN201890991U - Brake circuit device for water jet loom - Google Patents
Brake circuit device for water jet loom Download PDFInfo
- Publication number
- CN201890991U CN201890991U CN2010206252041U CN201020625204U CN201890991U CN 201890991 U CN201890991 U CN 201890991U CN 2010206252041 U CN2010206252041 U CN 2010206252041U CN 201020625204 U CN201020625204 U CN 201020625204U CN 201890991 U CN201890991 U CN 201890991U
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- circuit
- voltage
- brake
- low
- high voltage
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- Expired - Fee Related
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Abstract
The utility model mainly discloses a brake circuit device for a water jet loom. The brake circuit device comprises a PWM (Pulse-Width Modulation) circuit, a high-voltage break-over circuit and a low-voltage break-over circuit, which are connected onto the terminal of a brake sheet; the input end of the PWM circuit is connected with a singlechip; and the control signal end of the high-voltage break-over circuit and that of the low-voltage break-over circuit are connected with the break output end of the singlechip. The brake circuit device adopts a digitized impulse to control the brake operation, the high-voltage conduction time is adjustable, and low voltage required for maintaining brake can be flexibly adjusted by adjusting the duty cycle of a low voltage impulse; and besides, the operation of two brake states can be realized under the condition of only high-voltage power supply.
Description
Technical field
The utility model relates to the water jet looms brake gear, and is particularly relevant with water jet looms brake circuit arrangement.
Background technology
Rotate when the main shaft of water jet looms is worked, when breaking down or need maintenance, adopt brake block that main shaft is checked, stop operating.The work of brake block mainly is to come control work by the brake circuit.
In the existing brake gear, adopt two kinds of power supplys to give the brake circuit, one road high voltage, the one tunnel is low-voltage.In the moment of brake, adopt High Voltage Power Supply, make brake block can produce braking at short notice.After the brake block braking, high voltage changes low-voltage into, keeps the main shaft skidding.The purpose of doing like this is at not needing very high voltage just can keep braking behind the skidding, only needs low-voltage just more than sufficient, saves power supply.
But the brake circuit of such two kinds of power supplys power supply, there is following point equally: at first, high low-voltage selects the back just can not change flexibly, such as the most direct current+125V that adopt of high voltage, low-voltage adopt direct current+6V ,+8V or the like, and traditional brake circuit can only a kind of high low-voltage of single selection, if+when the 6V low-voltage is not enough to keep brake, just need change power supply again, use relatively limitation.In addition, in the tradition brake circuit, after set high-tension conduction time, can't directly change.Such as different water jet loomss brake asynchronism(-nization)s, the 0.1S that has just can brake, and what have needs 0.15S, and this time also can't directly be regulated in circuit.
So comprehensive above-mentioned situation, the mode that loads two kinds of high low-voltages in the tradition brake circuit is used the very big limitation of existence, underaction in the actual use debugging.The inventor relies on the research experience for many years to water jet looms and Numeric Control Technology, designs water jet looms brake circuit arrangement, and this case produces thus.
The utility model content
The purpose of this utility model is to provide a kind of water jet looms brake circuit arrangement, and by same power supply powered operation, low-voltage is regulated flexibly.
For achieving the above object, solution of the present utility model is:
Water jet looms brake circuit arrangement comprises the pwm circuit, high voltage turning circuit, the low-voltage turning circuit that are connected on the brake block terminals; Described pwm circuit input connects single-chip microcomputer; The control signal end of high voltage turning circuit and low-voltage turning circuit is connected the singlechip interruption output.
Described high voltage turning circuit and low voltage circuit are the turning circuits that metal-oxide-semiconductor constitutes.
Described pwm circuit supply voltage is a high voltage.
After adopting such scheme, the utility model adopts PWM (pulse width modulation) circuit, the impulse waveform that produces in the single-chip microcomputer is adjusted to high voltage pulse is linked on the binding post of brake block with the low voltage pulse with certain dutycycle.In single-chip microcomputer, produce the high voltage interrupt signal, then high voltage turning circuit work, the waveform work in the pwm circuit affacts on the brake block.When producing the low-voltage interrupt signal in the single-chip microcomputer, the work of low-voltage turning circuit, the filtering high voltage pulse continues to pass to brake block and has low voltage pulse, keeps the brake block braking.
The utility model is owing to adopt digitlization pulse control brake work, and high voltage is adjustable conduction time, and brake keeps required low-voltage recently to realize flexible modulation by the duty of adjusting low voltage pulse.In addition, only needing just to realize the work of two kinds of braking states under the situation of a High Voltage Power Supply.
Description of drawings
Fig. 1 is the circuit diagram of the utility model preferred embodiment;
Fig. 2 is the terminals B0 input pulse schematic diagram of the utility model preferred embodiment;
Fig. 3 is the terminals B input pulse schematic diagram of the utility model preferred embodiment;
Fig. 4 is the terminals B1 input pulse schematic diagram of the utility model preferred embodiment.
The specific embodiment
In conjunction with the accompanying drawings, preferred embodiment is described in further details to the utility model.
Water jet looms brake circuit arrangement comprises pwm circuit 1, high voltage turning circuit 2, low-voltage turning circuit 3.
PWM (pulse width modulation) circuit 1 is to use comparatively extensively in the electronic technology field, mainly is to utilize numeral output in the microprocessor to the control of analog circuit.Pwm circuit 1 is by the power supply of+125V dc high voltage in the utility model, and pwm circuit 1 input pulse end PWM B0 connects the pulse output end on the single-chip microcomputer.By the B0 end in the modulation access brake block terminals 4 of pwm circuit 1.Pwm circuit 1 circuit structure own is the mature technology in the electronic technology, does not do here and gives unnecessary details.The impulse waveform of B0 end as shown in Figure 2, preceding 400u S is that peak value is+high voltage of 125V, the waveform of back is that dutycycle is 12/200 low voltage pulse waveform, peak value also is+125V.
High voltage turning circuit 2 is the turning circuits that adopt metal-oxide-semiconductor to constitute, and the high voltage that its input BRAKE connects single-chip microcomputer interrupts output.The output of high voltage turning circuit 2 is connected the B end in the brake block terminals 4.Produce high voltage and interrupt control signal in single-chip microcomputer, then metal-oxide-semiconductor BQ1 conducting forms a lasting high voltage at the B end, as shown in Figure 3, combine, do not change B0 end waveform with B0 end waveform, make the modulating pulse in the pwm circuit 1 pass through, realize the high voltage transient braking.
Low-voltage turning circuit 3 also is the turning circuit that adopts metal-oxide-semiconductor to constitute, but the conducting state difference.Low-voltage turning circuit 3 input BRAKE1 connect the low-voltage interruption output of single-chip microcomputer.In single-chip microcomputer, produce high voltage and interrupt control signal, then metal-oxide-semiconductor BQ2 conducting, at B1 end formation waveform as shown in Figure 4, like this modulating pulse high voltage in the pwm circuit 1 is dragged down, and low voltage pulse partly keeps high voltage, so only allow low voltage pulse to pass through, realize that low-voltage keeps braking.
So, the height voltage control mode of the control brake block of employing digitlization pulse in the utility model.Only High Voltage Power Supply of needs, and the dutycycle of regulating impulse just can change the maintenance brake voltage of low-voltage, uses flexibly, and is simple to operate.
Claims (3)
1. water jet looms brake circuit arrangement is characterized in that: comprise the pwm circuit, high voltage turning circuit, the low-voltage turning circuit that are connected on the brake block terminals; Described pwm circuit input connects single-chip microcomputer; The control signal end of high voltage turning circuit and low-voltage turning circuit is connected the singlechip interruption output.
2. water jet looms brake circuit arrangement as claimed in claim 1, it is characterized in that: described high voltage turning circuit and low voltage circuit are the turning circuits that metal-oxide-semiconductor constitutes.
3. water jet looms brake circuit arrangement as claimed in claim 1 or 2, it is characterized in that: described pwm circuit supply voltage is a high voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206252041U CN201890991U (en) | 2010-11-26 | 2010-11-26 | Brake circuit device for water jet loom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206252041U CN201890991U (en) | 2010-11-26 | 2010-11-26 | Brake circuit device for water jet loom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201890991U true CN201890991U (en) | 2011-07-06 |
Family
ID=44220469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206252041U Expired - Fee Related CN201890991U (en) | 2010-11-26 | 2010-11-26 | Brake circuit device for water jet loom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201890991U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409478A (en) * | 2011-10-31 | 2012-04-11 | 吴江江旭纺织有限公司 | Automatic control system for textile machine |
| CN107313163A (en) * | 2017-08-04 | 2017-11-03 | 江苏科瑞德智控自动化科技有限公司 | A kind of embedded braking vane of High Speed Rapier Loom |
-
2010
- 2010-11-26 CN CN2010206252041U patent/CN201890991U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409478A (en) * | 2011-10-31 | 2012-04-11 | 吴江江旭纺织有限公司 | Automatic control system for textile machine |
| CN107313163A (en) * | 2017-08-04 | 2017-11-03 | 江苏科瑞德智控自动化科技有限公司 | A kind of embedded braking vane of High Speed Rapier Loom |
| CN107313163B (en) * | 2017-08-04 | 2018-05-11 | 江苏科瑞德智控自动化科技有限公司 | A kind of embedded braking vane of High Speed Rapier Loom |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20151126 |