CN107829181B - Electric tensioner, twisting machine and tension control method - Google Patents
Electric tensioner, twisting machine and tension control method Download PDFInfo
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- CN107829181B CN107829181B CN201711092575.0A CN201711092575A CN107829181B CN 107829181 B CN107829181 B CN 107829181B CN 201711092575 A CN201711092575 A CN 201711092575A CN 107829181 B CN107829181 B CN 107829181B
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- yarn
- disc
- electric tensioner
- tension
- motor
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000013016 damping Methods 0.000 claims abstract description 28
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 238000005265 energy consumption Methods 0.000 claims abstract description 6
- 238000010248 power generation Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 4
- 230000001276 controlling effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Images
Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H13/00—Other common constructional features, details or accessories
- D01H13/10—Tension devices
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H13/00—Other common constructional features, details or accessories
- D01H13/10—Tension devices
- D01H13/108—Regulating tension by regulating speed of driving mechanisms of unwinding, paying-out, forwarding, winding or depositing devices, e.g. automatically in response to variations in tension
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
- D01H1/14—Details
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H13/00—Other common constructional features, details or accessories
- D01H13/04—Guides for slivers, rovings, or yarns; Smoothing dies
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H7/00—Spinning or twisting arrangements
Abstract
The invention provides an electric tensioner, a twisting machine and a tension control method, which comprises a tension motor and a yarn guide disc, wherein the tension motor is fixedly connected with a frame, the tension motor is fixedly connected with the yarn guide disc, and the yarn guide disc is used for being bypassed by yarns and transmitting resistance to the yarns. Between the creel and the spindle of the twisting machine, there is and is only one electric tensioner as an outer yarn tension control assembly. A tension control method comprising the steps of: when the yarn feeding device is started, the control device controls the electric tensioner to rotate for a period of time T1 along the yarn feeding direction; the control device controls the electric tensioner to run for a period of time T2 in a damping mode; after the balloon of the yarn is stable, the detection device gradually increases the reverse torque of the electric tensioner, and maintains the rotation speed of the motor of the spindle unchanged, so that the shape diameter of the balloon is minimum in an allowable range; through the steps, the energy consumption is reduced by controlling the yarn tension, the strong damage of the yarn is reduced, and the quality of the yarn is improved.
Description
Technical Field
The invention relates to the field of textile machinery, in particular to an electric tensioner, a twisting machine and a tension control method.
Background
The existing twisting machine comprises a direct twisting machine and a two-for-one twisting machine, and the size of a yarn balloon is required to be adjusted so as to reduce energy consumption in the twisting process. The mode of adjustment is to use a tensioner to control the tension of the yarn, thereby adjusting the shape of the balloon.
Chinese patent CN 102995185B describes a yarn feeding device comprising a yarn brake 11 and an active yarn feeding device 13, wherein the yarn brake 11 is a hysteresis brake, which has the problem that the yarn passes over a large number of friction surfaces, such as the friction disc of the yarn brake 11 and the friction disc of the active yarn feeding device 13, which is complicated to handle and maintain and damages the fibers.
Disclosure of Invention
The invention aims to solve the technical problem of providing an electric tensioner, a twisting machine and a tension control method, which can further reduce energy consumption, simplify the structure, facilitate maintenance and improve yarn quality.
In order to solve the technical problems, the invention adopts the following technical scheme: the electric tensioner comprises a tension motor and a yarn guide disc, wherein the tension motor is fixedly connected with a frame, the tension motor is fixedly connected with the yarn guide disc, and the yarn guide disc is used for being bypassed by yarns and transmitting resistance to the yarns.
In the preferred scheme, in the yarn guide disc, an inner disc seat is fixedly connected with an output shaft of a tension motor, and an inner disc chuck is fixedly arranged on the inner disc seat;
the outer disc seat is fixedly connected with the inner disc seat, and an outer flower disc is fixedly arranged on the outer disc seat.
In the preferred scheme, the inner flower disc and the outer flower disc form an arc-shaped protruding structure, and the inner flower disc is opposite to the arc-shaped protruding part of the outer flower disc.
In the preferred scheme, the tension motor is electrically connected with the power resistor, the speed signal detection circuit of the tension motor is electrically connected with the control device, the control device is electrically connected with the damping adjustment circuit, and the damping adjustment circuit is electrically connected with the power resistor.
A twisting machine adopting the electric tensioner is provided with only one electric tensioner as an outer yarn tension control component between a creel and a spindle of the twisting machine.
In the preferred scheme, the yarn moving direction is taken as a reference, a guide pipe is arranged at the upstream of the electric tensioner, and a yarn guiding wheel is arranged at the downstream of the electric tensioner;
the guide tube and the yarn guide wheel are separated by a distance along the axial direction of the electric tensioner, so that the yarn is contacted with the inner yarn guide disc when entering the yarn guide disc of the electric tensioner, and contacted with the outer yarn guide disc when leaving the yarn guide disc of the electric tensioner.
In a preferred embodiment, the wrap angle of the yarn on the yarn guide disc is greater than 270 °.
In the preferred scheme, the motor of the spindle is electrically connected with the detection device, the detection device is electrically connected with the control device, and the control device is electrically connected with the tension motor and the motor of the spindle.
The tension control method for the twisting machine comprises the following steps:
s1, when the motor-driven tensioner is started, the control device controls the motor-driven tensioner to rotate for a period of time T1 along the yarn feeding direction;
s2, the control device controls the electric tensioner to operate for a period of time T2 in a damping mode;
in the running process of the power generation mode, the damping of the electric tensioner is controlled by a damping adjusting circuit;
s3, after the balloon of the yarn is stable, the detection device gradually increases the reverse torque of the electric tensioner, and maintains the rotation speed of the motor of the spindle unchanged, so that the shape diameter of the balloon is minimum in an allowable range;
through the steps, the energy consumption is reduced by controlling the yarn tension.
In a preferred embodiment, the detection device detects one or more parameters of the input voltage, current or rotational speed of the spindle motor as feedback parameters.
The invention provides an electric tensioner, a twisting machine and a tension control method, wherein the tension of yarns can be directly adjusted by a control device by adopting a mode of controlling a yarn guiding disc by a tension motor, the abrasion of the yarns is reduced, the strong damage of the yarns is reduced, the quality of the yarns is improved, and the control is more convenient. The adopted damping control mode can conveniently control the damping, so that the structure can omit a hysteresis damper commonly used in the prior art, and the adjusting range is larger.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a schematic view of the mounting structure of the present invention.
Fig. 2 is a schematic diagram of the overall structure of the present invention.
Fig. 3 is a schematic structural view of the electric tensioner of the present invention.
Fig. 4 is a schematic diagram of a control structure of the electric tensioner according to the present invention.
In the figure: the yarn tensioner comprises an electric tensioner 1, a tension motor 101, a fastening screw 102, an inner disc seat 103, an inner disc chuck 104, an outer disc chuck 105, an outer disc seat 106, a thread section 107, yarns 2, a yarn frame 3, a guide tube 4, a yarn guide wheel 5, a yarn guide tube 6, a balloon 7, a spindle 8 and a frame 9.
Detailed Description
Example 1:
as shown in fig. 3, an electric tensioner comprises a tension motor 101 and a yarn guiding disc, wherein the tension motor 101 is fixedly connected with a frame 9, the tension motor 101 is fixedly connected with the yarn guiding disc, and a yarn 2 bypasses the yarn guiding disc. Yarn 2 in this example refers to the outer yarn.
In the preferred scheme, in the yarn guiding disc, an inner disc seat 103 is fixedly connected with an output shaft of a tension motor 101, and an inner disc chuck 104 is fixedly arranged on the inner disc seat 103; specifically, the threaded section 107 of the inner disc seat 103 is sleeved on the output shaft of the tension motor 101 and fixed by the fastening screw 102. The thread section 107 is provided with an external thread;
the outer disc seat 106 is fixedly connected with the inner disc seat 103, and the outer disc seat 106 is fixedly provided with an outer flower disc 105. The outer disc seat 106 is fixedly connected with the thread section of the inner disc seat 103 in a thread mode through an internal thread arranged on the inner wall.
In a preferred embodiment, the inner and outer rosettes 104, 105 are in an arcuate convex configuration, with the inner rosettes 104 being opposed to the arcuate convex portions of the outer rosettes. Preferably, a plurality of radially distributed projections are provided on the arcuate surfaces of the outer 105 and inner 104 rosettes, the tops of which projections are in contact with the yarn 2. With this structure, friction transmission is more reliable. I.e. the outer disc 105 and the inner disc 104 can be in contact with the yarn 2 at predetermined positions, such friction is thus controllable and is not susceptible to errors in the accuracy of the mounting and the dimensional accuracy of the parts.
In the preferred embodiment, as shown in fig. 4, the tension motor 101 is electrically connected with the power resistor, the speed signal detection circuit of the tension motor 101 is electrically connected with the control device, the control device is electrically connected with the damping adjustment circuit, and the damping adjustment circuit is electrically connected with the power resistor. With the structure, the damping output by the electric tensioner can be controlled through the damping adjusting circuit, so that the tension of the outer yarn is accurately controlled. The power resistor is an array formed by a plurality of resistors connected in parallel or in series, and further preferably, at least a part of the resistors have different resistance values. The damping adjusting circuit is a plurality of switching elements, and the resistance value of the power resistor is controlled through the switching of the switching element group. In another alternative, the control device outputs a PWM output pulse width modulated PWM signal to a damping adjustment circuit that controls the load of the tension motor 101 by controlling the current of a power resistor connected thereto.
Example 2:
as shown in fig. 1 and 2, in the twisting machine according to example 1, an electric tensioner is provided between the creel 3 and the spindle 8 of the twisting machine.
In a preferred embodiment, only one electric tensioner is provided as an outer yarn tension control assembly between the creel 3 and the spindle 8 of the twisting machine.
In a preferred scheme, the yarn 2 is used as a reference, a guide pipe 4 is arranged at the upstream of the electric tensioner 1, and a yarn guiding wheel 5 is arranged at the downstream;
as shown in fig. 3, the guide tube 4 is spaced from the yarn guide wheel 5 in the axial direction of the electric tensioner 1 so that the yarn 2 contacts the inner cam 104 when entering the yarn guide of the electric tensioner 1 and contacts the outer cam 105 when leaving the yarn guide of the electric tensioner 1.
In a preferred embodiment, the wrap angle of the yarn 2 on the yarn guiding disc is greater than 270 °.
In a preferred embodiment, the motor of spindle 8 is electrically connected to a detection device, which is electrically connected to a control device, which is electrically connected to the tension motor 101 and to the motor of spindle 8.
Example 3:
on the basis of embodiments 1 and 2, a tension control method for the twisting machine comprises the following steps:
s1, when the motor-driven tensioner 1 is started, the control device controls the motor-driven tensioner 1 to rotate for a period of time T1 along the yarn feeding direction; with this structure, the damage due to static friction can be greatly reduced. The structure of the invention is also one of important reasons for reducing the strength loss, and T1 is 0.5-5 seconds, preferably 2-3 seconds.
s2, the control device controls the electric tensioner 1 to operate for a period of time T2 in a damping mode; t2 is 5 to 300 seconds, preferably 30 seconds.
In the operation process of the power generation mode, the damping of the electric tensioner 1 is controlled by a damping adjusting circuit; the control device outputs a PWM output pulse width modulation PWM signal to a damping adjustment circuit that controls the load of the tension motor 101 by controlling the current of a power resistor connected thereto.
s3, after the balloon 7 of the yarn 2 is stable, the detection device gradually increases the reverse torque of the electric tensioner 1, and maintains the rotation speed of the motor of the spindle 8 unchanged, so that the shape diameter of the balloon is minimum in an allowable range; in a preferred embodiment, the detection device detects one or more parameters of the input voltage, current or rotational speed of the spindle 8 motor as feedback parameters.
By the above steps, it is achieved to reduce the energy consumption by controlling the yarn tension and to reduce the wear by using less friction parts of the yarn.
The foregoing embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without collision. The protection scope of the present invention is defined by the claims, and the protection scope includes equivalent alternatives to the technical features of the claims. I.e., equivalent replacement modifications within the scope of this invention are also within the scope of the invention.
Claims (5)
1. An electric tensioner is characterized in that: the device comprises a tension motor (101) and a yarn guide disc, wherein the tension motor (101) is fixedly connected with a frame (9), the tension motor (101) is fixedly connected with the yarn guide disc, and the yarn guide disc is used for being bypassed by yarns and transmitting resistance to the yarns;
in the yarn guide disc, an inner disc seat (103) is fixedly connected with an output shaft of a tension motor (101), and an inner disc (104) is fixedly arranged on the inner disc seat (103);
the outer disc seat (106) is fixedly connected with the inner disc seat (103), and an outer flower disc (105) is fixedly arranged on the outer disc seat (106);
the inner flower disc (104) and the outer flower disc (105) are of arc-shaped protruding structures, and the inner flower disc (104) is opposite to the arc-shaped protruding part of the outer flower disc;
the tension motor (101) is electrically connected with the power resistor, the speed signal detection circuit of the tension motor (101) is electrically connected with the control device, the control device is electrically connected with the damping adjustment circuit, and the damping adjustment circuit is electrically connected with the power resistor;
in the running process of the power generation mode, the damping of the electric tensioner (1) is controlled through a damping regulating circuit, a control device outputs PWM output pulse width modulation PWM signals to the damping regulating circuit, and the damping regulating circuit controls the load of the tension motor (101) through controlling the current of a power resistor connected with the damping regulating circuit;
after the balloon (7) of the yarn (2) is stabilized, the detection device gradually increases the reverse torque of the electric tensioner (1) and maintains the rotation speed of the motor of the spindle (8) unchanged, so that the shape diameter of the balloon is minimized within the allowable range.
2. A twisting machine employing the electric tensioner of claim 1, characterized in that: an electric tensioner is arranged between a creel (3) and a spindle (8) of the twisting machine and is used as an outer yarn tension control component;
with reference to the direction of movement of the yarn (2), a guiding pipe (4) is arranged at the upstream of the electric tensioner (1), and a yarn guiding wheel (5) is arranged at the downstream;
the guide tube (4) and the yarn guide wheel (5) are separated by a distance along the axial direction of the electric tensioner (1) so that the yarn (2) contacts with the inner flower disc (104) when entering the yarn guide disc of the electric tensioner (1) and contacts with the outer flower disc (105) when leaving the yarn guide disc of the electric tensioner (1).
3. A twisting machine according to claim 2, characterized in that: the wrap angle of the yarn (2) on the yarn guiding disc is larger than 270 degrees.
4. A twisting machine according to claim 2 or 3, characterized in that: the motor of the spindle (8) is electrically connected with a detection device, the detection device is electrically connected with a control device, and the control device is electrically connected with the tension motor (101) and the motor of the spindle (8).
5. A tension control method for a twisting machine according to claim 4, characterized by comprising the steps of:
s1, when the yarn feeding device is started, the control device controls the electric tensioner (1) to rotate for a period of time T1 along the yarn feeding direction;
s2, the control device controls the electric tensioner (1) to run for a period of time T2 in a damping mode;
in the running process of the power generation mode, the damping of the electric tensioner (1) is controlled by a damping adjusting circuit;
s3, after the balloon (7) of the yarn (2) is stable, the detection device gradually increases the reverse torque of the electric tensioner (1) and maintains the rotation speed of the motor of the spindle (8) unchanged, so that the shape diameter of the balloon is minimum in an allowable range;
the detection device takes one or more parameters of input voltage, current or rotating speed of the spindle (8) motor as feedback parameters;
through the steps, the energy consumption is reduced by controlling the yarn tension.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711092575.0A CN107829181B (en) | 2017-11-08 | 2017-11-08 | Electric tensioner, twisting machine and tension control method |
| KR1020180057918A KR102101789B1 (en) | 2017-11-08 | 2018-05-21 | Electric tensioner, twister and tension control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711092575.0A CN107829181B (en) | 2017-11-08 | 2017-11-08 | Electric tensioner, twisting machine and tension control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107829181A CN107829181A (en) | 2018-03-23 |
| CN107829181B true CN107829181B (en) | 2023-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711092575.0A Active CN107829181B (en) | 2017-11-08 | 2017-11-08 | Electric tensioner, twisting machine and tension control method |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR102101789B1 (en) |
| CN (1) | CN107829181B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR102101789B1 (en) | 2020-04-21 |
| CN107829181A (en) | 2018-03-23 |
| KR20190052599A (en) | 2019-05-16 |
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Effective date of registration: 20231229 Address after: 443001 Industrial Park, Wujiagang District, Yichang City, Hubei Province Patentee after: YICHANG JINGWEI TEXTILE MACHINERY Co.,Ltd. Patentee after: QINGDAO HONGDA TEXTILE MACHINERY Co.,Ltd. Address before: 443001 No. 5 orange road, Yichang, Hubei Patentee before: YICHANG JINGWEI TEXTILE MACHINERY Co.,Ltd. |
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