CN113322614A - Front yarn dividing area tension control system of sizing machine and warp tension control method - Google Patents
Front yarn dividing area tension control system of sizing machine and warp tension control method Download PDFInfo
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- CN113322614A CN113322614A CN202110762965.4A CN202110762965A CN113322614A CN 113322614 A CN113322614 A CN 113322614A CN 202110762965 A CN202110762965 A CN 202110762965A CN 113322614 A CN113322614 A CN 113322614A
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- 238000004513 sizing Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 56
- 238000012806 monitoring device Methods 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 6
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- 238000006073 displacement reaction Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 description 9
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/34—Driving arrangements of machines or apparatus
- D06B3/345—Means for controlling the tension in the textile material
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/04—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments
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Abstract
The invention relates to a tension control system and a warp tension control method for a front yarn dividing area of a sizing machine, wherein the sizing machine comprises a machine head main transmission system, a cylinder system, a first steering gear box and a size box system which are sequentially connected, and the first steering gear box is used for changing the output and transmission direction of the cylinder system; the front yarn dividing tension control system comprises a cylinder variable speed adjusting device, is arranged between the machine head main transmission system and the cylinder system, and is used for adjusting the rotating speed of the cylinder system so as to adjust the tension of the warp yarns. Through the arrangement, the problem that the front yarn dividing area in the existing sizing machine cannot control and improve the tension of the warp yarns can be solved.
Description
Technical Field
The invention relates to the technical field of front yarn splitting tension control, in particular to a front yarn splitting area tension control system and a warp tension control method of a sizing machine.
Background
In the prior art, a tension control system of a front yarn dividing area is not arranged in an old sizing machine, so that production personnel cannot easily find out that the tension of warp yarns is unstable, and produced cloth hairiness is degraded when the tension of the warp yarns is too large; when the tension is too small, warp yarns are broken or the pan head is directly scrapped.
In addition, when industrial cloth is produced on the old machine tables, higher warp tension is needed, the machine tables cannot meet the requirement, and only two kinds of cloth can be produced by the machine tables at present.
Therefore, there is a need to improve the existing machine such as KAWAMOTO sizing machine to improve and control the warp tension of the front yarn splitting area.
Disclosure of Invention
In order to solve the above technical problems, an object of the present invention is to provide a front yarn dividing region tension control system and a warp yarn tension control method for a slasher, where the front yarn dividing region tension control system for a slasher is used to solve the problem that the front yarn dividing region in the existing slasher cannot control and improve the warp yarn tension.
In order to achieve one of the above objects, an embodiment of the present invention provides a tension control system for a front yarn splitting area of a slasher, where the slasher includes a head main transmission system, a cylinder system, a first steering gear box and a slasher system, which are connected in sequence, and the first steering gear box is used to change the output and transmission direction of the cylinder system;
the front yarn dividing tension control system comprises a cylinder variable speed adjusting device, is arranged between the machine head main transmission system and the cylinder system, and is used for adjusting the rotating speed of the cylinder system so as to adjust the tension of the warp yarns.
As a further improvement of an embodiment of the invention, the cylinder speed change adjusting device comprises a PIV stepless speed changing box and a second steering gear box which are connected in sequence; the input end of the PIV continuously variable transmission is connected with the handpiece main transmission system and is used for providing a required transmission ratio; and the output end of the second steering gear box is connected to the cylinder system and used for changing the output transmission direction of the PIV stepless gearbox.
As a further improvement of an embodiment of the present invention, the cylinder system includes a front yarn-dividing zone roller and a cylinder drum which are sequentially arranged along a warp advancing direction; the front yarn dividing tension control system further comprises a tension monitoring device arranged at the position of the front yarn dividing area roller and used for detecting the tension of the warp passing through the front yarn dividing area roller.
As a further improvement of an embodiment of the present invention, the tension monitoring device includes:
one end of the tension spring is fixedly connected to the machine table, and the other end of the tension spring is connected with the rotating shaft of the front yarn dividing area roller; when the warp drives the front yarn dividing area roller to generate displacement, the tension spring is extruded by the front yarn dividing area roller to shorten or stretch;
and a tension detection mechanism connected with the tension spring and used for detecting the tension of the warp yarns through the deformation of the tension spring.
As a further improvement of an embodiment of the present invention, the tension detection mechanism includes a tension display seat fixedly disposed on the machine platform;
the tension display base is provided with a movable slide rail and a tension scale; the rotating shaft of the front yarn dividing area roller is sleeved in a hollow through hole of a movable sliding block, and the movable sliding block is connected with the movable sliding rail in a sliding manner; the tension spring is arranged in the movable slide rail in parallel, one end of the tension spring is connected with the movable slide block, and the other end of the tension spring is fixedly connected with the end part of the movable slide rail; the tension scale is arranged on one side of the movable sliding rail in parallel, a tension pointer arrow is fixedly arranged on the movable sliding block, and the tension pointer arrow points to the scale of the tension scale;
when the tension spring is extruded by the front yarn dividing area roller to shorten or stretch and extend, the tension spring drives the movable sliding block to move along the movable sliding rail, so that the arrow of the tension pointer is driven to point to a corresponding scale numerical value.
As a further improvement of an embodiment of the invention, the scale value of the tension scale matches the warp tension value.
As a further improvement of an embodiment of the invention, the PIV continuously variable transmission comprises a PIV adjusting hand wheel and a PIV taper disc, wherein the PIV adjusting hand wheel is connected with the PIV taper disc and is used for adjusting the transmission situation of the PIV taper disc.
An embodiment of the present invention further provides a warp tension control method based on the tension control system for the front yarn dividing region of the sizing machine, the method including:
and keeping the rotating speed of the head roller of the sizing machine unchanged, and adjusting the rotating speed of the cylinder system according to the actual tension of the warp.
As a further improvement of an embodiment of the present invention, the step "adjusting the rotation speed of the cylinder system according to the actual tension of the warp" specifically includes:
when the actual tension of the warp needs to be increased, the PIV adjusting hand wheel is rotated anticlockwise, so that the transmission ratio of the PIV stepless speed changing box is reduced;
when the actual tension of the warp needs to be reduced, the PIV adjusting hand wheel is rotated clockwise, so that the transmission ratio of the PIV stepless speed changing box is increased.
As a further improvement of an embodiment of the present invention, the step of "rotating the PIV adjustment handwheel" specifically includes:
and rotating the PIV adjusting hand wheel for a quarter of a turn each time, and observing whether the actual tension of the warp yarn is recovered to be normal or not.
Compared with the prior art, the invention has the beneficial effects that:
in the whole equipment of the sizing machine, a machine head main transmission system drives a cylinder system to operate, and the cylinder system is connected to a size box system through a first steering gear box so as to drive warp yarns to sequentially advance;
a cylinder variable speed adjusting device is added between the head main transmission system and the cylinder system and is used for adjusting the rotating speed of the cylinder system; therefore, under the condition that the rotating speed of the roller at the head of the sizing machine is not changed, the tension of the warp yarns is improved along with the rotating speed adjustment of the cylinder system when the warp yarns pass through the cylinder system, so that the tension of the warp yarns is effectively adjusted, and the production quality is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the description of the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic structural view of a tension control system of a front yarn dividing section according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a tension monitoring device according to an embodiment of the present invention;
FIG. 3 is a schematic view showing the connection of the components of the slasher in one embodiment of the invention.
Wherein the reference numbers referred to in the figures are as follows:
the automatic yarn dividing device comprises a PIV stepless gearbox 20, a PIV adjusting hand wheel 200, a PIV adjusting screw rod 201, a PIV tapered disc 202, a second steering gear box 22, a tension spring 31, a tension display seat 300, a movable slide rail 301, a movable slide block 302, a cylinder chain wheel 40, a cylinder chain 41, a front yarn dividing zone roller 5, a first steering gear box 6, a transmission shaft 71, a cross steering gear 80, a brake disc 81, a brake hub 82, a chain wheel 90 and a transmission chain 91.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail and completely with reference to the following detailed description of the invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As shown in fig. 1 to 3, an embodiment of the present invention provides a tension control system for a front yarn splitting area of a slasher, where the slasher includes a head main transmission system, a cylinder system, a first steering gear box 6 and a slasher system, which are connected in sequence, where the first steering gear box 6 is used to change the output and transmission direction of the cylinder system;
the front yarn dividing tension control system comprises a cylinder variable speed adjusting device, is arranged between the machine head main transmission system and the cylinder system, and is used for adjusting the rotating speed of the cylinder system so as to adjust the tension of the warp yarns.
Specifically, in the whole equipment of the sizing machine, a machine head main transmission system drives a cylinder system to operate, and the cylinder system is connected to a size box system through a first steering gear box 6 so as to drive warp yarns to sequentially advance;
a cylinder variable speed adjusting device is added between the head main transmission system and the cylinder system and is used for adjusting the rotating speed of the cylinder system; therefore, under the condition that the rotating speed of the roller at the head of the sizing machine is not changed, the tension of the warp yarns is improved along with the rotating speed adjustment of the cylinder system when the warp yarns pass through the cylinder system, so that the tension of the warp yarns is effectively adjusted, and the production quality is improved.
In actual use, a front yarn splitting tension system is additionally arranged in the KAWAMOTO sizing machine and is specifically arranged from a cylinder to a machine head roller.
Further, the cylinder speed change adjusting device comprises a PIV stepless gearbox 20 and a second steering gearbox 22 which are connected in sequence; the input end of the PIV continuously variable transmission 20 is connected with a handpiece main transmission system and is used for providing a required transmission ratio; the output of the second steering gearbox 22 is connected to the cylinder system for changing the direction of the output transfer of the PIV continuously variable transmission 20.
In practical use, a PIV stepless gearbox 20 (which can be upgraded and replaced by a SUCKER old machine table) and a steering gear box are additionally arranged at a steering gear box of the cylinder transmission, the input end of the PIV stepless gearbox is connected with the machine head main transmission, and the output end of the PIV stepless gearbox is connected with the cylinder and the stock chest.
By adjusting the opening of the conical disc 202 of the PIV, the transmission ratio of the PIV can be changed, so that the rotating speed behind the cylinder can be adjusted, and the tension of the cylinder can be changed.
Wherein the PIV continuously variable transmission 20 provides a required transmission ratio; the steering gear changes the direction of output traffic.
In addition, the PIV continuously variable transmission 20 can be replaced by other machines, and universal specifications can be selected from the market.
Specifically, different transmission ratios are adjusted according to different cloth types, so that the optimal production conditions are found.
In actual production, the diameters and the hardness of the head rubber roller and the stock tank rubber roller are not fixed, and the transmission ratio is not fixed (the rubber roller needs to be periodically ground, the diameter is reduced a little after each grinding, the hardness is increased as the time is longer, and the transmission ratio is changed).
An arrow is fixed at the center of the roller slide block, a scale is fixed on the tension display base 300, and when different cloth types are specified to be produced, the arrow is aligned with different numbers to ensure the same tension of the same cloth types. The thicker the cloth, the larger the value, for example as follows:
7628:7±1；
1506:5±1；
industrial cloth: 9 +/-1.
Further, the cylinder system comprises a front yarn dividing area roller 5 and a cylinder roller which are sequentially arranged along the advancing direction of the warp yarns; the front yarn dividing tension control system further comprises a tension monitoring device which is arranged at the position of the front yarn dividing area roller 5 and used for detecting the tension of the warp yarns passing through the front yarn dividing area roller 5.
From this, can become controllable visual system with preceding yarn dividing tension, the management and control during the production of being convenient for is favorable to the quality to be promoted.
Further, the tension monitoring device includes:
one end of the tension spring 31 is fixedly connected to the machine table, and the other end of the tension spring 31 is connected with the rotating shaft of the front yarn dividing zone roller 5; when the warp drives the front yarn dividing area roller 5 to generate displacement, the tension spring 31 is extruded by the front yarn dividing area roller 5 to shorten or stretch;
and a tension detecting mechanism connected to the tension spring 31 for detecting the tension of the warp yarn by the deformation of the tension spring 31.
In actual use, the yarn guide roller for discharging the cylinder is changed from a fixed type to a swing type roller drawn by a spring, scales are marked on the swing type roller, if tension fluctuates, the roller also swings, and an operator can conveniently check the tension constantly.
Further, the tension detection mechanism comprises a tension display base 300 fixedly arranged on the machine platform;
the tension display base 300 is provided with a movable slide rail 301 and a tension scale; the rotating shaft of the front yarn dividing zone roller 5 is sleeved in a hollow through hole of a movable sliding block 302, and the movable sliding block 302 is in sliding connection with a movable sliding rail 301; the tension spring 31 is arranged in the movable slide rail 301 in parallel, one end of the tension spring 31 is connected with the movable slide block 302, and the other end is fixedly connected with the end part of the movable slide rail 301; the tension scale is arranged on one side of the movable sliding rail 301 in parallel, and a tension pointer arrow is fixedly arranged on the movable sliding block 302 and points to the scale of the tension scale;
when the tension spring 31 is compressed, shortened or stretched by the front yarn-dividing zone roller 5, the tension spring 31 drives the moving slide block 302 to move along the moving slide rail 301, so as to drive the arrow of the tension pointer to point to the corresponding scale numerical value.
In actual use, the movable slide rail 301 limits the movement of the roller, and the spring is used for checking the fluctuation condition of the tension.
Thus, embodiments provide a front split tension system that can be varied according to production needs and add tension scales that can be used to check if tension fluctuations are within specification.
As shown in fig. 2, the roller oscillates according to the tension fluctuation.
Specifically, when the tension of the current yarn dividing area is large, the tension roller is pulled forward by the yarn, the spring is compressed, and the position of the spring is close to the direction of the machine head;
when the tension of the current yarn dividing area is small, the spring is released, the tension roller retreats, and the position of the tension roller is close to the direction of the cylinder.
The tension roller moves towards the machine head, and the tension is larger; the tension is smaller the further the cylinder. If the tension roller is not moved at a certain position, the tension is stable, and if the tension roller swings back and forth all the time, the tension is unstable, so that a security worker needs to be found to check the machine table.
Furthermore, the scale value of the tension scale is matched with the warp tension value.
Further, a tension pointer arrow is fixedly disposed at a central position of the moving slider 302.
In actual use, the scale value is in positive correlation with the warp tension value, so that the thicker the cloth, the larger the scale value of the aligned tension scale.
Further, the PIV continuously variable transmission 20 comprises a PIV adjusting hand wheel 200 and a PIV taper disc 202, wherein the PIV adjusting hand wheel 200 is connected with the PIV taper disc 202 and is used for adjusting the transmission situation of the PIV taper disc 202.
Further, the minimum rotation range of the PIV adjusting handwheel 200 is a quarter turn.
Further, the PIV continuously variable transmission 20 further comprises a PIV adjusting screw 201, and the PIV adjusting handwheel 200 adjusts the PIV taper disc 202 through the PIV adjusting screw 201.
In actual use, the upper PIV tapered disc is the driving end, and the lower PIV tapered disc is the driven end; when the tension needs to be increased, the PIV adjusting hand wheel 200 is rotated anticlockwise, the PIV tapered disc 202 is in a big-end-up situation, namely the diameter of the driving end is reduced, the diameter of the driven end is increased, and the transmission ratio is reduced; the rotating speed of the cylinder and the tin bath driven by the PIV is reduced, the rotating speed of the front machine head roller is not changed, and the tension is increased.
When the tension needs to be reduced, the PIV adjusting hand wheel 200 is rotated clockwise, the PIV tapered disc 202 is in a big-end-up situation, namely the diameter of the driving end is increased, the diameter of the driven end is decreased, and the transmission ratio is increased; the rotating speed of the cylinder and the tin bath driven by the PIV is increased, the rotating speed of the front machine head roller is not changed, and the tension is reduced.
The action is slow when the tension is adjusted, each time the roller rotates about 1/4 circles, and the roller stops to observe whether the tension is adjusted in place.
An embodiment of the present invention further provides a warp tension control method based on the tension control system for the front yarn dividing region of the sizing machine, including:
keeping the rotating speed of a roller at the head of the sizing machine unchanged, and adjusting the rotating speed of the cylinder system according to the actual tension of the warp.
Therefore, under the condition of ensuring that the rotating speed of the front head roller is not changed, the rotating speed of the cylinder system is adjusted, and the warp tension condition of the front yarn dividing area can be adjusted and improved.
Further, the step of "adjusting the rotation speed of the cylinder system according to the actual tension of the warp" specifically includes:
when the actual tension of the warp needs to be increased, the PIV adjusting hand wheel 200 is rotated anticlockwise, so that the transmission ratio of the PIV stepless speed changing box 20 is reduced;
when the actual tension of the warp needs to be reduced, the PIV adjusting hand wheel 200 is rotated clockwise, so that the transmission ratio of the PIV stepless speed changing box 20 is increased.
Further, the step of turning the PIV adjusting handwheel 200 specifically includes:
each time the PIV adjusting handwheel 200 is turned a quarter turn and it is observed whether the actual tension in the warp yarn returns to normal.
In a specific working process and an operation method, when the tension needs to be increased, the PIV adjusting hand wheel 200 is rotated anticlockwise, and the PIV tapered disc 202 is in a big-end-up situation, namely, the diameter of the driving end is reduced, the diameter of the driven end is increased, and the transmission ratio is reduced; the rotating speed of the cylinder and the tin bath driven by the PIV is reduced, the rotating speed of the front machine head roller is not changed, and the tension is increased.
When the tension needs to be reduced, the PIV adjusting hand wheel 200 is rotated clockwise, the PIV tapered disc 202 is in a big-end-up situation, namely the diameter of the driving end is increased, the diameter of the driven end is decreased, and the transmission ratio is increased; the rotating speed of the cylinder and the tin bath driven by the PIV is increased, the rotating speed of the front machine head roller is not changed, and the tension is reduced.
The action is slow when the tension is adjusted, each time the roller rotates about 1/4 circles, and the roller stops to observe whether the tension is adjusted in place.
In summary, in the embodiment of the invention, a PIV stepless speed changing box 20, a steering gear box, a guide roller movable slide rail 301 and a spring are additionally arranged in the sizing machine, idle parts are utilized to provide a front yarn dividing tension control system which can be changed according to production requirements, and tension scales are added to check whether tension fluctuation is in a specification range; therefore, the warp tension is effectively improved and controlled.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention and is not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention are included in the scope of the present invention.
Claims (10)
1. The tension control system for the front yarn dividing area of the sizing machine is characterized by comprising a machine head main transmission system, a cylinder system, a first steering gear box and a size box system which are sequentially connected, wherein the first steering gear box is used for changing the output and transmission direction of the cylinder system;
the front yarn dividing tension control system comprises a cylinder variable speed adjusting device, is arranged between the machine head main transmission system and the cylinder system, and is used for adjusting the rotating speed of the cylinder system so as to adjust the tension of the warp yarns.
2. The front yarn dividing region tension control system of the sizing machine according to claim 1, wherein the cylinder speed change adjusting device comprises a PIV stepless speed changing box and a second steering gear box which are connected in sequence; the input end of the PIV continuously variable transmission is connected with the handpiece main transmission system and is used for providing a required transmission ratio; and the output end of the second steering gear box is connected to the cylinder system and used for changing the output transmission direction of the PIV stepless gearbox.
3. The front yarn dividing region tension control system of the sizing machine according to claim 2, characterized in that the cylinder system comprises a front yarn dividing region roller and a cylinder roller which are arranged in sequence along the warp advancing direction; the front yarn dividing tension control system further comprises a tension monitoring device arranged at the position of the front yarn dividing area roller and used for detecting the tension of the warp passing through the front yarn dividing area roller.
4. The front yarn dividing section tension control system of the sizing machine according to claim 3, wherein the tension monitoring device comprises:
one end of the tension spring is fixedly connected to the machine table, and the other end of the tension spring is connected with the rotating shaft of the front yarn dividing area roller; when the warp drives the front yarn dividing area roller to generate displacement, the tension spring is extruded by the front yarn dividing area roller to shorten or stretch;
and a tension detection mechanism connected with the tension spring and used for detecting the tension of the warp yarns through the deformation of the tension spring.
5. The front yarn dividing region tension control system of the sizing machine according to claim 4, wherein the tension detection mechanism comprises a tension display seat fixedly arranged on the machine platform;
the tension display base is provided with a movable slide rail and a tension scale; the rotating shaft of the front yarn dividing area roller is sleeved in a hollow through hole of a movable sliding block, and the movable sliding block is connected with the movable sliding rail in a sliding manner; the tension spring is arranged in the movable slide rail in parallel, one end of the tension spring is connected with the movable slide block, and the other end of the tension spring is fixedly connected with the end part of the movable slide rail; the tension scale is arranged on one side of the movable sliding rail in parallel, a tension pointer arrow is fixedly arranged on the movable sliding block, and the tension pointer arrow points to the scale of the tension scale;
when the tension spring is extruded by the front yarn dividing area roller to shorten or stretch and extend, the tension spring drives the movable sliding block to move along the movable sliding rail, so that the arrow of the tension pointer is driven to point to a corresponding scale numerical value.
6. The front yarn dividing region tension control system of the slasher as claimed in claim 5, wherein the scale value of the tension scale matches the warp yarn tension value.
7. The front yarn dividing region tension control system of the slasher as claimed in claim 6, wherein the PIV continuously variable transmission comprises a PIV adjusting hand wheel and a PIV taper disc, and the PIV adjusting hand wheel is connected with the PIV taper disc and used for adjusting the transmission situation of the PIV taper disc.
8. A warp tension control method based on the front yarn dividing section tension control system of the sizing machine according to any one of claims 1 to 7, the method comprising:
and keeping the rotating speed of the head roller of the sizing machine unchanged, and adjusting the rotating speed of the cylinder system according to the actual tension of the warp.
9. The warp tension control method according to claim 8, wherein the step of adjusting the rotation speed of the cylinder system according to the actual tension of the warp yarns specifically comprises:
when the actual tension of the warp needs to be increased, the PIV adjusting hand wheel is rotated anticlockwise, so that the transmission ratio of the PIV stepless speed changing box is reduced;
when the actual tension of the warp needs to be reduced, the PIV adjusting hand wheel is rotated clockwise, so that the transmission ratio of the PIV stepless speed changing box is increased.
10. The warp tension control method according to claim 9, wherein the step of turning the PIV adjusting handwheel specifically comprises:
and rotating the PIV adjusting hand wheel for a quarter of a turn each time, and observing whether the actual tension of the warp yarn is recovered to be normal or not.
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| CN202110762965.4A CN113322614A (en) | 2021-07-06 | 2021-07-06 | Front yarn dividing area tension control system of sizing machine and warp tension control method |
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