CN106987918B - Composite spinning metering pump control device - Google Patents
Composite spinning metering pump control device Download PDFInfo
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- CN106987918B CN106987918B CN201710270393.1A CN201710270393A CN106987918B CN 106987918 B CN106987918 B CN 106987918B CN 201710270393 A CN201710270393 A CN 201710270393A CN 106987918 B CN106987918 B CN 106987918B
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- control unit
- switch
- relay
- pump control
- alarm
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/06—Feeding liquid to the spinning head
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention relates to a control device of a composite spinning metering pump, which comprises a main pump control unit, an auxiliary pump control unit and a control circuit, wherein the main pump control unit is connected with the auxiliary pump control unit; the control unit comprises a frequency converter, a metering pump and an intermediate relay; the frequency converter is connected with a three-phase power supply, and the output end of the frequency converter is connected with the metering pump; the common end and the normally open end of the intermediate relay are connected in series between the S1 and the SC of the frequency converter; the control circuit comprises an alarm module and a relay control module; the relay control module is used for controlling the opening and closing of the intermediate relay; when the control unit fails, the alarm module cuts off the power supply end of the relay control module to stop the metering pumps, so that the production of single-component polymer spinning is avoided.
Description
Technical Field
The invention relates to the field of electricity, in particular to a control device of a composite spinning metering pump.
Background
The composite spinning is to pre-crystallize and dry two or more kinds of polymer separately, melt and extrude, filter and measure in screw extruder controlled separately, and send into spinning manifold. In the spinning metering process, a frequency converter is used for respectively controlling a metering pump so as to control the content proportion of each group of polymers, and the polymers are respectively converged at small holes of a nozzle through a filter, a distribution plate and the like according to respective paths to form multifilament consisting of single fibers. If one group of metering pump control units of the polymers fails and does not work in the spinning production process, the polymer spinning with single component or lack of a certain component, namely, an unqualified product, can be produced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a control device of a composite spinning metering pump.
In order to solve the technical problems, the invention adopts the following technical measures:
a control device of a composite spinning metering pump comprises a main pump control unit, an auxiliary pump control unit and a control circuit; the main pump control unit and the auxiliary pump control unit respectively comprise a frequency converter, a metering pump and an intermediate relay; the frequency converter is connected with a three-phase power supply, and the output end of the frequency converter is connected with the metering pump to provide power for the metering pump; the common end and the normally open end of the intermediate relay are connected in series between the operation input ends S1 and SC of the frequency converter; the control circuit comprises an alarm module and a relay control module; the relay control module is used for controlling the opening and closing of the intermediate relay; the alarm module comprises an alarm relay, a main pump alarm switch and an auxiliary pump alarm switch which are connected in parallel; the alarm relay is a normally closed relay; the normally closed end of the alarm relay is connected with the positive electrode of a power supply and the first end of the main pump alarm switch, the public end of the alarm relay is connected with the power supply end of the relay control module, the first coil end of the alarm relay is connected with the second end of the main pump alarm switch, and the second coil end of the alarm relay is connected with the negative electrode of the power supply; when the main pump control unit breaks down, the frequency converter connected with the main pump control unit controls the main pump alarm switch to be closed; when the auxiliary pump control unit fails, the frequency converter connected with the auxiliary pump control unit controls the auxiliary pump alarm switch to be closed; and the main pump alarm switch or the auxiliary pump alarm switch is actuated, so that the alarm relay is electrified and disconnected, and meanwhile, the metering pumps of the main pump control unit and the auxiliary pump control unit are controlled to stop working.
As a further improvement, the relay control module comprises a first control loop and a second control loop; the first control loop is used for controlling the opening and closing of an intermediate relay of the main pump control unit; and the second control loop is used for controlling the opening and closing of an intermediate relay of the auxiliary pump control unit.
As a further improvement, the first control loop comprises a first switch and a second switch; the first switch, the second switch and a coil of an intermediate relay of the main pump control unit are sequentially connected in series between a common end of the alarm relay and a power supply cathode; the common end and the normally open end of an intermediate relay of the main pump control unit are connected in parallel with the two ends of the first switch; the second control loop comprises a third switch and a fourth switch; the third switch, the fourth switch and the coil of the intermediate relay of the auxiliary pump control unit are sequentially connected in series between the end point of the first switch and the second switch which are connected in series and the negative pole of the power supply; the first switch and the third switch are normally open contacts, and the second switch and the fourth switch are normally closed contacts.
As a further improvement, the device also comprises a transformer which is connected with a single-phase power supply and outputs the transformed single-phase power supply to the control circuit to provide power.
As a further improvement, the transformer further comprises a first fuse which is connected in series with the output end of the transformer.
As a further improvement, the transformer further comprises a second fuse which is connected in series with the input end of the transformer.
As a further improvement, the intermediate relay is HH54P-FL 24V/AC.
As a further improvement, the frequency converter is VS-606V7.
Compared with the prior art, the invention has the following advantages: the technical scheme of the invention adopts an interlocking mutual control mode, and the alarm output can be realized as long as one group of metering pump control units fails, and other groups of metering pump control units can stop working, so that the polymer spinning with single component or lack of one component can be completely eradicated, and the customer complaint caused by the unqualified product flowing into the market can be avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a circuit schematic of an embodiment of the present invention.
Description of the main elements
Main pump control unit 100
Transformer 400
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described in detail and completely with reference to the accompanying drawings.
In the description of the present invention, it should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
The related modules involved in the system are all hardware system modules or are functional modules combining computer software programs or protocols with hardware in the prior art, and the computer software programs or the protocols involved in the functional modules are all known to the technology of persons skilled in the art, and are not improvements of the system; the improvement of the system is the interaction relation or the connection relation among all the modules, namely the integral structure of the system is improved so as to solve the corresponding technical problems to be solved by the system.
The composite spinning metering pump control device of the invention will be described in detail with reference to the accompanying drawings and embodiments.
Referring to fig. 1, a control device of a compound spinning metering pump includes a main pump control unit 100, an auxiliary pump control unit 200, and a control circuit 300; the main pump control unit 100 and the auxiliary pump control unit 200 respectively include a frequency converter, a metering pump and an intermediate relay; three-phase power supply pins R, S and T of the frequency converter are respectively connected with a three-phase power supply, and three-phase output ends U, V and W are respectively connected with the three-phase power supply input end of the metering pump to provide power supply for the metering pump; and the common end and the normally open end of the intermediate relay are connected in series between the operation input ends S1 and SC of the frequency converter, and when the intermediate relay is closed, the frequency converter controls to output a three-phase power supply to supply power to the metering pump. In this embodiment, preferably, the intermediate relay is HH54P-FL24V/AC, and the frequency converter is VS-606V7.
The control circuit 300 comprises an alarm module and a relay control module; the relay control module is used for controlling the opening and closing of the intermediate relay so as to control the work of the metering pump; the alarm module comprises an alarm relay J3, a main pump alarm switch K5 and an auxiliary pump alarm switch K6 which are connected in parallel; the alarm relay J3 is a normally closed relay; the normally closed end of the alarm relay J3 is connected with the positive electrode of a power supply and the first end of the main pump alarm switch K5, the public end of the alarm relay J3 is connected with the power supply end 313 of the relay control module, the first coil end of the alarm relay J3 is connected with the second end of the main pump alarm switch K5, and the second coil end of the alarm relay J3 is connected with the negative electrode of the power supply.
When the main pump control unit 100 fails, the frequency converter connected with the main pump control unit controls the main pump alarm switch K5 to be closed, and the alarm relay J3 is powered off, namely the power supply end 313 of the relay control module is disconnected from the power supply to stop working; when the auxiliary pump control unit 200 fails, the frequency converter connected with the auxiliary pump control unit controls the auxiliary pump alarm switch K6 to be closed, and the alarm relay J3 is powered on and disconnected, namely the power supply end 313 of the relay control module is disconnected from the power supply to stop working. As long as the main pump control unit 100 or the auxiliary pump control unit 200 generates a fault alarm output, the power end 313 of the relay control module is disconnected from the power supply to stop working, that is, both the main pump control unit 100 and the auxiliary pump control unit 200 stop working, so as to avoid producing single-component polymer spinning.
Further, in the preferred embodiment of the present invention, the relay control module includes a first control loop 311 and a second control loop 312; the first control circuit 311 is configured to control opening and closing of an intermediate relay J1 of the main pump control unit 100, so as to control the output of the main pump control unit 100; the second control circuit 312 is used for controlling the opening and closing of the intermediate relay J2 of the auxiliary pump control unit 200, so as to control the working output of the auxiliary pump control unit 200. In this embodiment, since the production process needs to start the metering pump M1 of the main pump control unit 100 first, and then start the metering pump M2 of the auxiliary pump control unit 200; the metering pump M1 of the main pump control unit 100 stops working, and the metering pump M2 of the sub pump control unit 200 also stops working. Based on the above requirements, it is preferable that the first control loop 311 includes a first switch K1 and a second switch K2; the first switch K1, the second switch K2 and the coil JX1 of the intermediate relay J1 of the main pump control unit 100 are sequentially connected in series between the common end of the alarm relay J3 and the negative electrode of the power supply; the common end and the normally open end of the intermediate relay J1 of the main pump control unit 100 are connected in parallel to two ends of the first switch K1; the second control loop 312 includes a third switch K3 and a fourth switch K4; the third switch K3, the fourth switch K4 and the coil JX2 of the intermediate relay J2 of the auxiliary pump control unit 200 are sequentially connected in series between the end point of the series connection of the first switch K1 and the second switch K2 and the negative electrode of the power supply; the first switch K1 and the third switch K3 are normally open contacts, and the second switch K2 and the fourth switch K4 are normally closed contacts. During specific implementation, the first switch K1 is pressed when the metering pump M1 of the main pump control unit 100 needs to be started, the coil JX1 of the intermediate relay J1 of the main pump control unit 100 is electrified, the intermediate relay J1 of the main pump control unit 100 is attracted and self-locked, and the frequency converter Q1 of the main pump control unit 100 is started and outputs power supply to supply the metering pump M1 of the main pump control unit 100 to work. When the metering pump M2 of the auxiliary pump control unit 200 needs to be started, the third switch K3 is pressed under the condition that the metering pump M1 of the main pump control unit 100 is started, at this time, the coil JX2 of the intermediate relay J2 of the auxiliary pump control unit 200 is powered on, the intermediate relay J2 of the auxiliary pump control unit 200 is attracted and self-locked, and the frequency converter Q2 of the auxiliary pump control unit 200 is started and outputs power supply for the metering pump M2 of the auxiliary pump control unit 200 to work. When the main pump control unit 100 needs to stop working, the second switch K2 is turned off, the intermediate relay J1 of the main pump control unit 100 is turned off, and then the metering pump M1 of the main pump control unit 100 stops working, and at this time, the intermediate relay J2 of the auxiliary pump control unit 200 is also turned off to stop working due to power failure.
Further, in the preferred embodiment of the present invention, the present invention further includes a transformer 400, which is connected to the single-phase power source for transforming the voltage and outputting the transformed voltage to the control circuit 300 for providing power, in the present embodiment, the transformer 400 is 220V/24V.
Further, in the preferred embodiment of the present invention, a first fuse F1 and a second fuse F2 are further included and are respectively connected in series to the output terminal and the input terminal of the transformer 400.
The control method of the composite spinning metering pump control device comprises the following steps:
s1, pressing a first switch K1 and a third switch K3;
s2, electrifying and attracting intermediate relays of the main pump control unit 100 and the auxiliary pump control unit 200;
s3, the frequency converters of the main pump control unit 100 and the auxiliary pump control unit 200 control output, and the corresponding metering pumps are electrified to work;
s4, when a metering pump M1 of the main pump control unit 100 breaks down, a frequency converter Q1 connected with the metering pump M1 controls a main pump alarm switch K5 to be sucked, and the step S6 is carried out;
s5, when a metering pump M2 of the auxiliary pump control unit 200 breaks down, a frequency converter Q2 connected with the auxiliary pump control unit controls an auxiliary pump alarm switch K6 to suck;
s6, the alarm relay J3 is powered on and disconnected;
s7, the power end 313 of the relay control module is disconnected, the first control loop 311 and the second control loop 312 both stop working, and the metering pumps of the main pump control unit 100 and the auxiliary pump control unit 200 stop working;
s8, when the metering pump M1 of the main pump control unit 100 needs to stop working, the second switch K2 is pressed down, and the intermediate relay J1 of the main pump control unit 100 is powered off and opened; the metering pump M1 of the main pump control unit 100 stops operating;
s9, when the metering pump M2 of the auxiliary pump control unit 200 needs to stop working, the fourth switch K4 is pressed down, and the intermediate relay J2 of the auxiliary pump control unit 200 is powered off and is opened; the metering pump M2 of the sub-pump control unit 200 stops operating.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A control device of a composite spinning metering pump is characterized by comprising a main pump control unit, an auxiliary pump control unit and a control circuit;
the main pump control unit and the auxiliary pump control unit respectively comprise a frequency converter, a metering pump and an intermediate relay; the frequency converter is connected with a three-phase power supply, and the output end of the frequency converter is connected with the metering pump to provide power for the metering pump; the common end and the normally open end of the intermediate relay are connected in series between the operation input ends S1 and SC of the frequency converter;
the control circuit comprises an alarm module and a relay control module; the relay control module is used for controlling the opening and closing of the intermediate relay;
the alarm module comprises an alarm relay, a main pump alarm switch and an auxiliary pump alarm switch which are connected in parallel; the alarm relay is a normally closed relay;
the normally closed end of the alarm relay is connected with the positive electrode of a power supply and the first end of the main pump alarm switch, the public end of the alarm relay is connected with the power supply end of the relay control module, the first coil end of the alarm relay is connected with the second end of the main pump alarm switch, and the second coil end of the alarm relay is connected with the negative electrode of the power supply;
when the main pump control unit fails, a frequency converter connected with the main pump control unit controls the main pump alarm switch to be closed; when the auxiliary pump control unit breaks down, the frequency converter connected with the auxiliary pump control unit controls the auxiliary pump alarm switch to be closed; and the main pump alarm switch or the auxiliary pump alarm switch is actuated, so that the alarm relay is powered on and off, and meanwhile, the metering pumps of the main pump control unit and the auxiliary pump control unit are controlled to stop working.
2. The compound spinning metering pump control device according to claim 1, characterized in that the relay control module comprises a first control loop and a second control loop; the first control loop is used for controlling the opening and closing of an intermediate relay of the main pump control unit; and the second control loop is used for controlling the opening and closing of an intermediate relay of the auxiliary pump control unit.
3. The compound spinning metering pump control device of claim 2, wherein the first control circuit comprises a first switch, a second switch; the first switch, the second switch and a coil of an intermediate relay of the main pump control unit are sequentially connected in series between a common end of the alarm relay and a power supply cathode; the common end and the normally open end of an intermediate relay of the main pump control unit are connected in parallel with the two ends of the first switch;
the second control loop comprises a third switch and a fourth switch; the third switch, the fourth switch and the coil of the intermediate relay of the auxiliary pump control unit are sequentially connected in series between the end point of the first switch and the second switch which are connected in series and the negative pole of the power supply; the first switch and the third switch are normally open contacts, and the second switch and the fourth switch are normally closed contacts.
4. The composite spinning metering pump control device according to claim 1, further comprising a transformer, wherein the transformer is connected with a single-phase power supply, transforms the voltage of the single-phase power supply and outputs the single-phase power supply to the control circuit to provide power for the control circuit.
5. The compound spin pump control unit of claim 4 further comprising a first fuse connected in series to the output of the transformer.
6. The compound spin pump control unit of claim 4 further comprising a second fuse connected in series to the input of the transformer.
7. The composite spinning metering pump control device according to claim 1, characterized in that the intermediate relay is HH54P-FL 24V/AC.
8. The compound spinning metering pump control device of claim 1, wherein the frequency converter is VS-606V7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710270393.1A CN106987918B (en) | 2017-04-24 | 2017-04-24 | Composite spinning metering pump control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710270393.1A CN106987918B (en) | 2017-04-24 | 2017-04-24 | Composite spinning metering pump control device |
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| CN106987918A CN106987918A (en) | 2017-07-28 |
| CN106987918B true CN106987918B (en) | 2022-10-14 |
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| GB1204339A (en) * | 1967-12-06 | 1970-09-03 | Schwarza Chemiefaser | Apparatus for melt spinning composite filaments |
| CN201305670Y (en) * | 2008-10-20 | 2009-09-09 | 桐乡市中维化纤有限公司 | Control device for fully-drawn yarn metering pump |
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| CN204761363U (en) * | 2015-07-03 | 2015-11-11 | 江门市华睦五金有限公司 | Can supply automatic frequency conversion constant voltage control system of cooling tower of two sets of unit sharings |
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| CN206814890U (en) * | 2017-04-24 | 2017-12-29 | 厦门象屿兴泓特种材料有限公司 | A kind of composite spinning measures apparatus for controlling pump |
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| CN101818413A (en) * | 2010-03-18 | 2010-09-01 | 吉安市三江超纤无纺有限公司 | Manufacturing method and device for two-component hollow spun-bonded spunlace non-woven fabrics |
| CN204349855U (en) * | 2015-01-30 | 2015-05-20 | 欧瑞康纺织有限及两合公司 | Spinning measuring pump control system and spinning equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB1204339A (en) * | 1967-12-06 | 1970-09-03 | Schwarza Chemiefaser | Apparatus for melt spinning composite filaments |
| CN201305670Y (en) * | 2008-10-20 | 2009-09-09 | 桐乡市中维化纤有限公司 | Control device for fully-drawn yarn metering pump |
| CN201386148Y (en) * | 2009-03-05 | 2010-01-20 | 江阴博伦化纤有限公司 | Single-spinning position variable frequency control device for spinning machine metering pump |
| CN201762487U (en) * | 2010-08-19 | 2011-03-16 | 郑睿敏 | Drive control system of spinning machine |
| CN201877826U (en) * | 2010-11-02 | 2011-06-22 | 北京三联虹普新合纤技术服务股份有限公司 | System for controlling speed fluctuation of frequency converter |
| CN103488119A (en) * | 2013-10-14 | 2014-01-01 | 江苏长乐纤维科技有限公司 | Control method for preventing POY (Pre-Oriented Yarn) fineness from generating midway variation |
| CN204476712U (en) * | 2015-01-08 | 2015-07-15 | 南京南汽畅通公路机械有限公司 | Control two control gear on a kind of power supply pump truck |
| CN204761363U (en) * | 2015-07-03 | 2015-11-11 | 江门市华睦五金有限公司 | Can supply automatic frequency conversion constant voltage control system of cooling tower of two sets of unit sharings |
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| CN106987918A (en) | 2017-07-28 |
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