CN114476789B - Transmission system and method for synchronous control of textile machinery - Google Patents

Transmission system and method for synchronous control of textile machinery Download PDF

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Publication number
CN114476789B
CN114476789B CN202210389923.5A CN202210389923A CN114476789B CN 114476789 B CN114476789 B CN 114476789B CN 202210389923 A CN202210389923 A CN 202210389923A CN 114476789 B CN114476789 B CN 114476789B
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China
Prior art keywords
overfeeding
cloth
roller
tension
motor
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CN202210389923.5A
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CN114476789A (en
Inventor
陈德木
高冰冰
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Hangzhou JIE Drive Technology Co Ltd
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Hangzhou JIE Drive Technology Co Ltd
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Priority to CN202210389923.5A priority Critical patent/CN114476789B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/195—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations
    • B65H23/198—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations motor-controlled (Controlling electrical drive motors therefor)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/0204—Sensing transverse register of web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/032—Controlling transverse register of web
    • B65H23/038—Controlling transverse register of web by rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/182—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations
    • B65H23/185—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations motor-controlled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
    • B65H23/192—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web motor-controlled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
    • B65H26/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs
    • B65H26/04—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs for variation in tension
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C7/00—Heating or cooling textile fabrics
    • D06C7/02—Setting
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
    • D06H3/00—Inspecting textile materials
    • D06H3/12—Detecting or automatically correcting errors in the position of weft threads in woven fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/22—Distance
    • B65H2511/224—Nip between rollers, between belts or between rollers and belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/30—Forces; Stresses
    • B65H2515/31—Tensile forces

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

The invention discloses a transmission system synchronously controlled by textile machinery, which comprises an unwinding mechanism, a first tension adjusting mechanism, an overfeeding mechanism, a setting machine, a second tension adjusting mechanism, a flattening mechanism, a winding mechanism and a controller, wherein the unwinding mechanism, the first tension adjusting mechanism, the overfeeding mechanism, the setting machine, the second tension adjusting mechanism, the flattening mechanism and the winding mechanism are sequentially arranged along the cloth conveying direction; the overfeeding mechanism comprises a first overfeeding frame and a second overfeeding frame, wherein first overfeeding roll pairs are installed on the first overfeeding frame, second overfeeding roll pairs are installed on the second overfeeding frame, and two pairs of overfeeding roll pairs carry out overfeeding conveying on wide cloth together; the invention is provided with two pairs of overfeeding double rollers, which are not only used for overfeeding conveying, but also can be respectively controlled by the controller to prevent the cloth from being inclined, and the overfeeding mechanism is matched with the adjusting mechanism to realize automatic deviation correction of the cloth and automatic adjustment of the tension of the cloth, thereby keeping constant tension operation and improving the shaping effect.

Description

Transmission system and method for synchronous control of textile machinery
Technical Field
The invention belongs to the technical field of textile machinery, and particularly relates to a transmission system and a method for synchronous control of the textile machinery.
Background
The cloth shaping process is that the cloth passes through a shaping machine and is dried and shaped under the action of high-temperature hot air of the shaping machine, and the shaped cloth has good hand feeling and stable size. The quality of the cloth can be controlled by controlling parameters such as heating temperature, cloth conveying speed, overfeeding amount and the like in the setting machine. Overfeeding, namely, the unstable states of cloth such as piece extension, width narrowing and the like caused by external force are overcome by adjusting the cloth feeding speed of the overfeeding roller, and normal overfeeding enables warp yarns to retract, weft density to rise, gram weight to increase and warp shrinkage to decrease. The back overfeeding enables warp yarns to extend, weft density to be reduced, gram weight to be reduced, warp shrinkage to be increased, the width of the fabric and weft density of the fabric after the fabric is shaped are stable and consistent, and overfeeding control is important parameter control for achieving fabric shaping quality.
In the center of the prior art, an overfeeding mechanism overfeeds cloth into a setting machine, because the width of the cloth is required to be wider and wider, the requirement on the manufacturing precision of the whole overfeeding roller suitable for the width of the cloth is extremely high, and the overfeeding roller has slight deviation in size or installation, the oblique pulling of the cloth can be caused, so that the manufacturing cost is increased, and the setting quality of the cloth is influenced; the transmission mechanisms on the two sides of the cloth setting machine have poor synchronism, so that the cloth cover is stretched and even torn; the cloth cannot be timely straightened when the cloth is obliquely pulled, so that the defective rate is high; in the process of setting the cloth, the constant tension of the cloth is an important factor for ensuring the setting quality of the cloth, the implementation regulation and control of the tension of the cloth are lacked in the prior art, the compensation and correction of the overfeeding process of an overfeeding mechanism are lacked, the tension of the cloth is easy to fluctuate greatly, the regulation time of the tension of the cloth is long after fluctuation, and the defective rate is increased.
Disclosure of Invention
The present invention aims to overcome the above-mentioned shortcomings and provide a technical solution to solve the above-mentioned problems.
A transmission system for synchronous control of textile machinery comprises an unwinding mechanism, a first tension adjusting mechanism, an overfeeding mechanism, a setting machine, a second tension adjusting mechanism, a flattening mechanism, a winding mechanism and a controller, wherein the unwinding mechanism, the first tension adjusting mechanism, the overfeeding mechanism, the setting machine, the second tension adjusting mechanism, the flattening mechanism and the winding mechanism are sequentially arranged along the cloth conveying direction, the overfeeding mechanism comprises a first overfeeding frame and a second overfeeding frame, a first overfeeding roller is arranged on the first overfeeding frame, a second overfeeding roller is arranged on the second overfeeding frame, the first overfeeding roller and the second overfeeding roller have the same length and are both smaller than half of the width of conveyed cloth, a first overfeeding servo motor is further arranged on the first overfeeding frame, the output end of the first overfeeding servo motor is connected with the upper roller of the first overfeeding roller, still install the second on the super feeding frame of second and overfeed servo motor, the last roller of second overfeed pair roller is connected to the output of second overfeed servo motor, the interval between the first overfeed pair roller, the interval between the second overfeed pair roller equal and all slightly be less than the thickness of cloth, first overfeed servo motor with second overfeed servo motor all is connected with the controller electricity.
Furthermore, the first super feeding frame and the second super feeding frame are provided with vertical sliding grooves, sliding blocks are arranged in the sliding grooves, the sliding blocks are respectively in rotating connection with the upper rollers of the first super feeding pair rollers and the upper rollers of the second super feeding pair rollers, and the top sides of the sliding blocks are provided with driving cylinders.
Further, a first support is fixedly installed on the first super-feeding frame and the second super-feeding frame respectively, and a first weft straightening sensor is fixedly installed on the bottom side of the first support; the flattening mechanism comprises a flattening support, a flattening roller is installed at the top of the flattening support in a rotating mode, a second support is fixedly installed on the two sides of the flattening support in the cloth width direction respectively, a second weft straightening sensor is fixedly installed on the bottom side of the second support, and the first weft straightening sensor and the second weft straightening sensor are electrically connected with the controller.
Further, the first tension adjusting mechanism comprises a first tension adjusting bracket, a first linear motor is fixedly mounted at the top of the first tension adjusting bracket, a first sliding plate is fixedly mounted at the driving end of the first linear motor, a first tension roller is fixedly mounted at the bottom of the first sliding plate, and a first bearing tension sensor is mounted on a rotating shaft of the first tension roller; the second tension adjusting mechanism comprises a second tension adjusting bracket, a second tension roller is fixedly mounted at the top of the second tension adjusting bracket, and a rotating shaft of the second tension roller is provided with a second bearing tension sensor; the first linear motor, the first bearing tension sensor and the second bearing tension sensor are all electrically connected with the controller.
Further, the setting machine comprises a setting fixing frame, an upper air box and a lower air box which are oppositely arranged up and down are fixedly installed on the setting fixing frame, an upper air blower and a lower air blower are respectively installed in the upper air box and the lower air box, a conveying channel for cloth to pass through is arranged between the upper air box and the lower air box, an upper press roller and a lower press roller are rotatably installed at the inlet end of the conveying channel, a soaking box is arranged on one side of the feeding end of the setting machine, a soaking roller is rotatably installed in the soaking box, and the cloth is conveyed forwards through a gap between the upper press roller and the lower press roller after passing through the soaking roller; and a guide roller is arranged at the outlet of the conveying channel.
Further, the unwinding mechanism comprises an unwinding support, a controller is fixedly mounted on the top side of the unwinding support, an unwinding roller is rotatably mounted on the unwinding support, and the unwinding roller is in transmission connection with an unwinding motor; the winding mechanism comprises a winding support, a winding roller is fixedly mounted on the winding support and is in transmission connection with a winding motor, and the unwinding motor and the winding motor are both electrically connected with a controller.
The invention also adopts the following technical scheme: a method for synchronously controlling textile machinery comprises a transmission system for synchronously controlling any one of the textile machinery, and comprises the following steps:
and (3) an acceleration stage:
a) the controller sends out an instruction to control the winding motor to rotate uniformly and quickly, and the rated conveying speed of the cloth is set to be V 0 Rated conveying speed V 0 The rated rotating speed of the corresponding unwinding motor and the winding motor is n 0 Setting the target conveying tension of cloth to be F 0 The allowable deviation range of the target conveying tension is F 0 When the first bearing tension sensor and/or the second bearing tension sensor detect that the tension of the cloth is F 0 When the speed is delta F, the controller sends a command to control the first overfeeding servo motor, the second overfeeding servo motor and the unreeling motor to uniformly rotate at an accelerated speed, the accelerated speeds of the first overfeeding servo motor, the second overfeeding servo motor and the unreeling motor are equal, and simultaneously the winding motor is controlled to uniformly rotate, and the rotating speed n of the winding motor is controlled at the moment 1 <n 0 ；
b) First overfeeding servo motor, second overfeeding servo motor and unreeling motor rotate until evenly accelerating:
when the second bearing tension sensor detects the tension F of the cloth 2 =F 0 + Δ F, and unwinding motor speed n 2 <n 1 <n 0 When the feeding device is used, the controller sends out an instruction to control the first overfeeding servo motor, the second overfeeding servo motor and the unwinding motorMachine with n 2 The rotating speed n of the winding motor is controlled by the controller at a constant speed 1 Uniformly decelerating to n 2 (ii) a The rotating speed n of the winding motor 1 Uniformly decelerating to n 2 In the process of (3), the second bearing tension sensor is made to detect the tension F of the cloth 2 Always within a deviation range of F 0 Within +/- Δ F; the controller sends out instructions to control the rotating speeds of the first overfeeding servo motor, the second overfeeding servo motor, the unreeling motor and the reeling motor to be uniformly accelerated to n 0 ；
When the unwinding motor rotates at the speed of n 2 =n 1 <n 0 And the second bearing tension sensor detects the tension F of the cloth 2 <F 0 When the voltage is + delta F, the controller sends out instructions to control the rotating speeds of the first overfeeding servo motor, the second overfeeding servo motor, the unreeling motor and the reeling motor to be n 1 Is uniformly accelerated to n 0 ；
A uniform speed stage:
c) when the first overfeeding servo motor, the second overfeeding servo motor, the unreeling motor and the reeling motor rotate at a rated speed n 0 Synchronously rotating at a constant speed, and the allowable deviation range of the tension of the cloth in the target conveying tension is F 0 When the temperature is within +/-delta F, the system enters a constant speed stage; in the uniform speed stage:
when the first bearing tension sensor and/or the second bearing tension sensor detect the tension F of the cloth 1 =F 2 >F 0 When the tension roller is in the range of plus delta F, the controller sends out a command to control the first overfeeding servo motor and the second overfeeding servo motor to rotate uniformly in an accelerated manner, and simultaneously the controller sends out a command to control the first linear motor to drive the first tension roller to move downwards until F 1 =F 2 =F 0 ；
The controller sends out an instruction to control the first overfeeding servo motor and the second overfeeding servo motor to uniformly decelerate and rotate until the rotating speed n of the first overfeeding servo motor c1 And a second overfeed servomotor speed n c2 Are all equal to the rated rotating speed n 0 (ii) a The first overfeed servo motor has a rotation speed n c1 And a second overfeed servomotor speed n c2 Uniformly decelerating to n 0 In the process of (2), the first bearing is transmitted in tensionThe sensor detects the tension F of the cloth 1 And the second bearing tension sensor detects the tension F of the cloth 2 Always within a deviation range of F 0 Within +/-Delta F;
secondly, when the first bearing tension sensor and/or the second bearing tension sensor detect the tension F of the cloth 1 =F 2 <F 0 When the tension is delta F, the controller sends a command to control the first overfeeding servo motor and the second overfeeding servo motor to uniformly decelerate and rotate, and simultaneously, the controller sends a command to control the first linear motor to drive the first tension roller to move upwards until F 1 =F 2 =F 0 ，
The controller sends out an instruction to control the first overfeeding servo motor and the second overfeeding servo motor to rotate uniformly and acceleratively until the rotating speed n of the first overfeeding servo motor c1 And a second overfeed servomotor speed n c2 Are all equal to the rated rotating speed n 0 (ii) a The first overfeed servo motor has a rotation speed n c1 And a second overfeed servomotor speed n c2 Is uniformly accelerated to n 0 In the process of (3), the first bearing tension sensor is made to detect the tension F of the cloth 1 And the second bearing tension sensor detects the tension F of the cloth 2 Always within a deviation range of F 0 Within +/-Delta F;
and (3) a deceleration stage:
d) after the winding roller finishes winding, the controller sends an instruction to control the first overfeeding servo motor, the second overfeeding servo motor, the unwinding motor and the winding motor to uniformly rotate at a reduced speed at the same accelerated speed until the first overfeeding servo motor, the second overfeeding servo motor, the unwinding motor and the winding motor stop.
Further, in the uniform speed stage, when the cloth is conveyed in the center, the distance from the detection probe of the first weft straightening sensor to the side of the cloth is D, and the distance from the detection probe of the second weft straightening sensor to the side of the cloth is D;
firstly, when a detection probe of a second weft straightening sensor on the left side detects cloth, the driving cylinder drives the sliding block to drive the upper roller of the second overfeeding roller to ascend and separate from the cloth, and when the first weft straightening sensor cannot detect the cloth, the driving cylinder drives the sliding block to drive the upper roller of the second overfeeding roller to descend to an initial position;
and secondly, when the detection probe of the second weft straightening sensor on the right side detects the cloth, the driving cylinder drives the sliding block to drive the upper roller of the first overfeeding roller to ascend and separate from the cloth, and when the first weft straightening sensor cannot detect the cloth, the driving cylinder drives the sliding block to drive the upper roller of the first overfeeding roller to descend to the initial position.
Further, in an acceleration stage, the power of the upper fan and the power of the lower fan are gradually increased, and in a deceleration stage, the power of the upper fan and the power of the lower fan are gradually decreased.
Has the advantages that:
the overfeeding double rollers are respectively arranged on the left side and the right side of the cloth, the two pairs of overfeeding double rollers carry out overfeeding conveying on the wide cloth together, the two pairs of overfeeding double rollers have equal lengths and are smaller than half of the width of the cloth, the manufacturing precision requirement of the overfeeding double rollers is greatly reduced, the manufacturing and installation cost is saved, meanwhile, the overfeeding double rollers are respectively driven by different motors and can be independently controlled, when the cloth is obliquely pulled, the rotating speeds of the left overfeeding double roller and the right overfeeding double roller are adjusted, so that the rotating speed difference between the left overfeeding double roller and the right overfeeding double roller occurs, and the oblique pulling is further rapidly eliminated; meanwhile, when the whole cloth deflects, the whole deviation rectification of the cloth can be realized by the working mode of the single-side overfeeding roller.
The unwinding mechanism and the winding mechanism are both provided with motors of the same type and are respectively controlled by the controller, the controller constantly adjusts the rotating speed of the unwinding mechanism and the winding mechanism, the rotating speed of the unwinding mechanism and the rotating speed of the winding mechanism are consistent, and when the rotating speed of the unwinding mechanism and the rotating speed of the winding mechanism are inconsistent, the unwinding mechanism and the winding mechanism quickly approach to consistency on the premise of not influencing the tension of cloth.
The controller regulates the rotating speeds of the overfeed motor, the unreeling motor and the reeling motor through signal feedback of the first tension sensor and the second tension sensor, constant tension of cloth in the setting machine is realized, and the setting quality of the cloth is ensured.
The two pairs of weft straightening sensors are arranged, the second weft straightening sensor far away from the overfeed pair roller is arranged at the tail side of the setting machine, and a certain distance is reserved between the second weft straightening sensor and the tail side of the setting machine, so that when the second weft straightening sensor detects that the cloth deviates left and right, the cloth in the setting machine is always in a normal range; and the first weft straightening sensor close to the overfeed pair roller is arranged close to the overfeed pair roller, so that the deviation can be timely stopped after the cloth adjusted by the overfeed pair roller is recovered to a normal conveying range, and the overfeed pair roller can be prevented from being overshot.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of an overfeed mechanism;
FIG. 3 is a side view of the overfeed mechanism;
fig. 4 is a schematic structural view of the flattening mechanism.
In the figure: 1. an unwinding mechanism; 2. a first tension adjustment mechanism; 3. an overfeed mechanism; 4. setting machine; 5. a second tension adjustment mechanism; 6. a flattening mechanism; 7. a winding mechanism; 8. a controller, 9 and a first super feeding frame; 10. a second super-feeding frame; 11. a first overfeed pair roller; 12. a second overfeed pair roller; 13. a first overfeed servo motor; 14. a second overfeed servo motor; 15. a chute; 16. a slider; 17. a driving cylinder; 18. a first bracket; 19. a first weft straightening sensor; 20. flattening the support; 21. flattening rollers; 22. a second bracket; 23. a second weft straightening sensor; 24. a first tension adjustment bracket; 25. a first linear motor; 26. a first tension roller; 27. a second tension adjusting bracket; 28. a second tension roller; 29. fixing the shape of the fixing frame; 30. an upper air box; 31. a lower bellows; 32. an upper compression roller; 33. a lower pressing roller; 34. a material soaking box; 35. a material soaking roller; 36. a guide roller; 37. unwinding a support; 38. unwinding rollers; 39. an unwinding motor; 40. winding a support; 41. a wind-up roll; 42. a winding motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a transmission system for synchronous control of a textile machine includes an unwinding mechanism 1, a first tension adjusting mechanism 2, an overfeeding mechanism 3, a setting machine 4, a second tension adjusting mechanism 5, a flattening mechanism 6, a winding mechanism 7 and a controller 8, wherein the unwinding mechanism 1, the first tension adjusting mechanism 2, the overfeeding mechanism 3, the setting machine 4, the second tension adjusting mechanism, the flattening mechanism 6 and the winding mechanism 7 are sequentially arranged along a cloth conveying direction.
Wherein, the transmission system controls each mechanism module to act cooperatively through the controller 8, and realizes the stable conveying of the cloth.
Referring to fig. 1-3, the overfeed mechanism 3 includes a first overfeed rack 9 and a second overfeed rack 10, a first overfeeding double-roll 11 is arranged on the first overfeeding frame 9, a second overfeeding double-roll 12 is arranged on the second overfeeding frame 10, the first overfeeding double-roll 11 and the second overfeeding double-roll 12 have the same length, and are all less than half of the width of the cloth, a first overfeeding servo motor 13 is also arranged on the first overfeeding frame 9, the output end of the first overfeeding servo motor 13 is connected with the upper roller of the first overfeeding double-roller 11, the second overfeeding frame 10 is also provided with a second overfeeding servo motor 14, the output end of the second overfeeding servo motor 14 is connected with the upper roller of the second overfeeding double-roller 12, the distance between the first overfeeding double-roller 11 and the distance between the second overfeeding double-roller 12 are equal and slightly smaller than the thickness of the cloth, the first overfeeding servo motor 13 and the second overfeeding servo motor 14 are both electrically connected with the controller 8.
The first overfeeding rack 9 and the second overfeeding rack 10 are arranged in a split mode, a first overfeeding roller pair 11 and a second overfeeding roller pair 12 are respectively installed on the first overfeeding rack 9 and the second overfeeding rack 10, the distance between the first overfeeding roller pair 11 and the distance between the second overfeeding roller pair 12 are equal and slightly smaller than the thickness of the cloth, when the overfeeding servo motor drives the lower roller to rotate, the overfeeding roller pairs clamp and convey the cloth, the first overfeeding roller pair 11 and the second overfeeding roller pair 12 are arranged oppositely and have the same height, the distance between the first overfeeding roller pair 11 and the second overfeeding roller pair 12 in the width direction of the cloth is smaller than one third of the width of the cloth, and the cloth is prevented from being centered and sunken in the conveying process; the two pairs of overfeeding rollers carry out overfeeding conveying on the cloth together, the lengths of the two pairs of overfeeding rollers are equal and are both smaller than half of the width of the cloth, the manufacturing precision requirement of the overfeeding rollers is greatly reduced, and the manufacturing and installation cost is saved.
Referring to fig. 1-3, vertical chutes 15 are formed in the first super-feeding frame 9 and the second super-feeding frame 10, sliders 16 are disposed in the chutes 15, the sliders 16 are rotatably connected to the upper rollers of the first super-feeding pair rollers 11 and the upper rollers of the second super-feeding pair rollers 12, and drive cylinders 17 are disposed on top sides of the sliders 16.
The overfeeding roller pairs are respectively driven by different motors, so that the first overfeeding roller pair 11 and the second overfeeding roller pair 12 can be independently driven, a cloth oblique-pulling monitor (not shown in the figure) is installed in the setting machine 4, when the cloth is obliquely pulled, the rotating speeds of the left overfeeding roller pair and the right overfeeding roller pair are adjusted, so that the rotating speed difference between the left overfeeding roller pair and the right overfeeding roller pair is generated, one side of the cloth is stretched relative to the other side in the width direction, and the fiber threads of the cloth are gradually straightened; meanwhile, when the cloth wholly deflects, the cloth can be wholly corrected by the mode of working of the single-side overfeeding double rollers, specifically, when the cloth leftwards deflects, the sliding block 16 is driven to upwards slide along the vertical sliding groove 15 through the driving air cylinder 17, so that the upper roller of the left overfeeding double roller is free from extrusion conveying of the cloth, the cloth is only clamped and conveyed by the overfeeding double rollers on the right side, the cloth can wholly and gradually deflect rightwards until being straightened, and the whole rapid correction of the cloth is realized.
Referring to fig. 1-4, a first support 18 is fixedly mounted on each of the first super-feeding frame 9 and the second super-feeding frame 10, and a first weft straightening sensor 19 is fixedly mounted on the bottom side of each of the first supports 18; flattening mechanism 6 is including flattening support 20, flattening roller 21 is installed in the top rotation of flattening support 20, flattening support 20 is along cloth width direction's both sides fixed mounting respectively has second support 22, the equal fixed mounting second weft straightening sensor 23 of bottom side of second support 22, first weft straightening sensor 19, second weft straightening sensor 23 all are connected with controller 8 electricity.
The setting of the flattening roller 21 flattens the cloth before rolling and eliminates wrinkles, as can be seen from the description of fig. 1-4, the second weft straightening sensor 23 is used for detecting whether the whole cloth is deflected, the distance from the detection probe of the second weft straightening sensor 23 to the side edge of the cloth is D =1cm, the deflection errors allowed on the left and right sides of the whole cloth are both 1cm, the second weft straightening sensor 23 is installed on the tail side of the setting machine 4, and a certain distance is reserved from the tail side of the setting machine 4, so that when the second weft straightening sensor 23 detects that the cloth is deflected left and right, the cloth in the setting machine 4 is still in a normal range; the first weft straightening sensor 19 is arranged close to the overfeeding pair roller, the distance d between a detection probe of the first weft straightening sensor 19 and the side of the cloth =0.1cm, when the first weft straightening sensor 19 cannot detect the cloth, the cloth is in a straightening state, d is set to be 0.1cm, and after the cloth adjusted by the overfeeding pair roller is returned to a normal conveying range, the deviation can be timely stopped and prevented from being overshot.
Referring to fig. 1-4, the first tension adjusting mechanism 2 includes a first tension adjusting bracket 24, a first linear motor 25 is fixedly mounted on the top of the first tension adjusting bracket 24, a first sliding plate is fixedly mounted on the driving end of the first linear motor 25, a first tension roller 26 is fixedly mounted on the bottom of the first sliding plate, and a first bearing tension sensor is mounted on the rotating shaft of the first tension roller 26; the second tension adjusting mechanism 5 comprises a second tension adjusting bracket 27, a second tension roller 28 is fixedly installed at the top of the second tension adjusting bracket 27, and a second bearing tension sensor is installed on a rotating shaft of the second tension roller 28; the first linear motor 25, the first bearing tension sensor and the second bearing tension sensor are all electrically connected with the controller 8.
The first tension adjusting mechanism 2 and the overfeeding mechanism 3 act cooperatively and are used for adjusting the tension of the cloth between the unreeling mechanism 1 and the overfeeding mechanism 3 and setting the target conveying tension of the cloth to be F 0 The allowable deviation range of the target conveying tension is F 0 And +/-delta F, and the specific regulation process is as follows: when the first bearing is in tensionThe device detects the tension F of the cloth 1 >F 0 When the tension is + delta F, the controller 8 sends out instructions to control the first overfeeding servo motor 13 and the second overfeeding servo motor 14 to rotate uniformly in an accelerated manner, and simultaneously the controller 8 sends out instructions to control the first linear motor 25 to drive the first tension roller 26 to move downwards until F 1 =F 0 (ii) a When the first bearing tension sensor detects the tension F of the cloth 1 <F 0 When the speed is delta F, the controller 8 sends a command to control the first overfeeding servo motor 13 and the second overfeeding servo motor 14 to uniformly decelerate and rotate, and simultaneously the controller 8 sends a command to control the first linear motor 25 to drive the first tension roller 26 to move upwards until the speed is delta F 1 =F 2 =F 0 Namely, the first tension adjusting mechanism 2 and the overfeeding mechanism 3 act cooperatively, so that the tension of the cloth between the unreeling mechanism 1 and the overfeeding mechanism 3 is always kept within an allowable deviation range;
the second tension adjusting mechanism 5 is provided with a second bearing tension sensor on a rotating shaft of a second tension roller 28 for detecting the tension of the cloth between the overfeeding mechanism 3 and the unreeling mechanism 1 in real time, the second bearing tension sensor feeds detected tension signals back to the controller 8, and the controller 8 is used for controlling the relation between the rotating speed of the overfeeding roller in the overfeeding mechanism 3 and the rotating speed of the reeling mechanism 7, so that the tension of the cloth between the overfeeding mechanism 3 and the unreeling mechanism 1 is always kept in an allowable deviation range. The first and second bearing tension sensors are preferably micro-displacement type tension detectors.
Referring to fig. 1-4, the setting machine 4 includes a setting fixing frame 29, an upper wind box 30 and a lower wind box 31 which are arranged opposite to each other from top to bottom are fixedly installed on the setting fixing frame 29, an upper wind machine and a lower wind machine are respectively installed in the upper wind box 30 and the lower wind box 31, a conveying channel for cloth to pass through is arranged between the upper wind box 30 and the lower wind box 31, an upper press roller 32 and a lower press roller 33 are rotatably installed at an inlet end of the conveying channel, a soaking box 34 is arranged on one side of a feeding end of the setting machine 4, a soaking roller 35 is rotatably installed in the soaking box 34, and the cloth is conveyed forward through a gap between the upper press roller 32 and the lower press roller 33 after passing through the soaking roller 35; the outlet of the conveying channel is fitted with a guide roller 36.
Slurry is arranged in the soaking box 34, the cloth enters the soaking box 34 to be soaked in the slurry, and enters the conveying channel after bypassing the lower side of the soaking roller 35, and the slurry soaked and dyed by the cloth is trowelled on the upper side and the lower side of the conveyed cloth by the upper pressing roller 32 and the lower pressing roller 33 which are rotatably arranged at the inlet end of the conveying channel, so that the sizing under the action of hot air after the cloth enters the conveying channel is facilitated; heating wires (not shown in the figure) which are uniformly distributed along the cloth conveying direction are arranged in the upper air box 30 and the lower air box 31, the heating wires are electrically connected with the controller 8, the cloth is conveyed by the outlets of the upper fan and the lower fan, and the upper fan and the lower fan blow hot air on the conveyed cloth to realize the shaping of the cloth.
Referring to fig. 1-4, the unwinding mechanism 1 includes an unwinding support 37, a controller 8 is fixedly mounted on a top side of the unwinding support 37, an unwinding roller 38 is rotatably mounted on the unwinding support 37, and the unwinding roller 38 is in transmission connection with an unwinding motor 39; winding mechanism 7 includes rolling support 40, fixed mounting has wind-up roll 41 on the rolling support 40, wind-up roll 41 is connected with the rolling motor transmission, unwinding motor 39, rolling motor all are connected with 8 electricity of controller.
The unwinding mechanism 1 and the winding mechanism 7 are both motors of the same type and are respectively controlled by the controller 8, so that the rotating speeds of the unwinding mechanism 1 and the winding mechanism 7 are kept at the same constant speed all the time in each stage.
Referring to fig. 1-4, the present invention also adopts the following technical solutions: a method for synchronously controlling textile machinery comprises a transmission system for synchronously controlling any one of the textile machinery, and comprises the following steps:
and (3) an acceleration stage:
a) the controller 8 sends out an instruction to control the winding motor to rotate at a uniform acceleration, and the rated conveying speed of the cloth is set to be V 0 Rated conveying speed V 0 The corresponding unreeling motor 39 and the reeling motor have a rated rotation speed of n 0 Setting the target conveying tension of cloth to be F 0 The allowable deviation range of the target conveying tension is F 0 Plus or minus delta F, when the first bearing tension sensor and/or the second bearing tension sensor detects that the tension of the cloth is F 0 Δ F, the controller 8 issues a fingerThe first overfeeding servo motor 13, the second overfeeding servo motor 14 and the unreeling motor 39 are controlled to rotate uniformly at an accelerated speed, the accelerated speeds of the first overfeeding servo motor 13, the second overfeeding servo motor 14 and the unreeling motor 39 are equal, the reeling motor is controlled to rotate at a uniform speed at the same time, and the rotating speed n of the reeling motor at the moment 1 <n 0 ；
Before winding, the end of the cloth is pulled out from the unwinding roller 38, sequentially passes through the first tension adjusting mechanism 2, the overfeeding mechanism 3, the setting machine 4, the second tension adjusting mechanism 5 and the flattening mechanism 6, and is wound on the winding roller 41 of the winding mechanism 7, at the moment, the cloth is initially in a loose state and needs to be quickly tensioned, and the tensioning force of the cloth is a main parameter for ensuring the shaping quality of the cloth, so that the shaping quality of the cloth cannot be ensured before the cloth is tensioned; after the system starts to work, the controller 8 firstly controls the winding motor to start to rotate firstly, and the winding motor rotates to n at uniform acceleration 1 While the tension of the cloth is F 0 Δ F, the tension of the cloth is within the allowable deviation range, and after the cloth is shaped by the shaping machine 4, the shaping quality of the cloth can be ensured;
since the acceleration stage is a complex control process, the controller 8 controls the first overfeeding servo motor 13, the second overfeeding servo motor 14 and the unreeling motor 39 to uniformly rotate in an accelerated manner and controls the reeling motor to rotate at a uniform speed, so that the tension of the cloth is always within an allowable deviation range, the time from starting the cloth to normal sizing is greatly shortened, and the time from the uniform accelerated rotation of the reeling motor to n is shortened as much as possible for a worker 1 The time of the above process is only needed.
In the acceleration stage, the tension of the cloth is controlled to be always within an allowable deviation range by the following method:
b) when the first overfeeding servo motor 13, the second overfeeding servo motor 14 and the unreeling motor 39 uniformly rotate in an accelerating way until:
when the second bearing tension sensor detects the tension F of the cloth 2 =F 0 + Δ F, and unwinding motor 39 speed n 2 <n 1 <n 0 When the feeding device is used, the controller 8 sends out a command to control the first overfeeding servo motor 13 and the second overfeeding servo motorTwo overfeed servo motor 14 and unwinding motor 39 with n 2 The rotating speed n of the winding motor is controlled by the controller 8 at a constant speed 1 Uniformly decelerating to n 2 (ii) a The rotating speed n of the winding motor 1 Uniformly decelerating to n 2 In the process, the winding motor is slowly decelerated by adjusting the deceleration time, so that the tension F of the cloth detected by the second bearing tension sensor can be ensured 2 Always within a deviation range of F 0 Within +/-Delta F; the controller 8 sends out instructions to control the rotating speeds of the first overfeeding servo motor 13, the second overfeeding servo motor 14, the unreeling motor 39 and the reeling motor to be uniformly accelerated to n 0 (ii) a Preferably, the models of the first overfeeding servo motor 13, the second overfeeding servo motor 14, the unreeling motor 39 and the reeling motor are the same, the synchronous and uniform acceleration process of the first overfeeding servo motor 13, the second overfeeding servo motor 14, the unreeling motor 39 and the reeling motor cannot affect the tension of the cloth very little, and the tension of the cloth can be guaranteed to be within a deviation range all the time.
② when the unwinding motor 39 rotates at the speed of n 2 =n 1 <n 0 And the second bearing tension sensor detects the tension F of the cloth 2 <F 0 When + delta F, the controller 8 sends out instructions to control the rotating speeds of the first overfeeding servo motor 13, the second overfeeding servo motor 14, the unreeling motor 39 and the reeling motor to be n 1 Is uniformly accelerated to n 0 (ii) a Preferably, the types of the first overfeeding servo motor 13, the second overfeeding servo motor 14, the unreeling motor 39 and the reeling motor are the same, the influence of the synchronous and uniform acceleration process of the first overfeeding servo motor 13, the second overfeeding servo motor 14, the unreeling motor 39 and the reeling motor on the tension of the cloth is small, and the tension of the cloth can be guaranteed to be always within a deviation range.
A uniform speed stage:
c) when the first overfeeding servo motor 13, the second overfeeding servo motor 14, the unreeling motor 39 and the reeling motor rotate at the rated speed n 0 Synchronously rotating at a constant speed, and the allowable deviation range of the tension of the cloth in the target conveying tension is F 0 When the temperature is within +/-delta F, the system enters a constant speed stage; in the uniform speed stage:
taken as a first axisThe tension F of the cloth is detected by the tension sensor and/or the second bearing tension sensor 1 =F 2 >F 0 When the tension is + delta F, the controller 8 sends out instructions to control the first overfeeding servo motor 13 and the second overfeeding servo motor 14 to rotate uniformly in an accelerated manner, and simultaneously the controller 8 sends out instructions to control the first linear motor 25 to drive the first tension roller 26 to move downwards until F 1 =F 2 =F 0 ；
The first overfeeding servo motor 13 and the second overfeeding servo motor 14 suddenly rotate in an accelerating manner, so that the tension of the cloth between the unreeling mechanism 1 and the overfeeding mechanism 3 is suddenly increased, and in order to counteract the sudden change of the tension of the cloth, the controller 8 controls the first linear motor 25 to drive the first tension roller 26 to move downwards to loosen the cloth; the length of the first linear motor 25 for releasing the cloth should be equal to the overfeed amount.
The controller 8 sends out instructions to control the first overfeeding servo motor 13 and the second overfeeding servo motor 14 to uniformly decelerate and rotate until the rotating speed n of the first overfeeding servo motor 13 c1 And the rotation speed n of the second overfeed servo motor 14 c2 Are all equal to the rated rotating speed n 0 (ii) a The first overfeed servo motor 13 has a rotational speed n c1 And the rotation speed n of the second overfeed servo motor 14 c2 Uniformly decelerating to n 0 In the process, the rotating speed n of the first overfeeding servo motor 13 and the second overfeeding servo motor 14 is controlled by regulating and controlling the deceleration time c2 Slowly decelerates to ensure that the first bearing tension sensor detects the tension F of the cloth 1 And the second bearing tension sensor detects the tension F of the cloth 2 Always within a deviation range of F 0 Within +/-Delta F;
secondly, when the first bearing tension sensor and/or the second bearing tension sensor detect the tension F of the cloth 1 =F 2 <F 0 When the speed is delta F, the controller 8 sends a command to control the first overfeeding servo motor 13 and the second overfeeding servo motor 14 to uniformly decelerate and rotate, and simultaneously the controller 8 sends a command to control the first linear motor 25 to drive the first tension roller 26 to move upwards until the speed is delta F 1 =F 2 =F 0 ；
Similarly, the sudden deceleration rotation of the first overfeeding servo motor 13 and the second overfeeding servo motor 14 can cause the tension of the cloth between the unreeling mechanism 1 and the overfeeding mechanism 3 to suddenly decrease, and in order to counteract the sudden change of the tension of the cloth, the controller 8 controls the first linear motor 25 to drive the first tension roller 26 to move upwards, so as to loosen the cloth; the length of the first linear motor 25 for releasing the cloth should be equal to the reverse overfeed amount.
The controller 8 sends out instructions to control the first overfeeding servo motor 13 and the second overfeeding servo motor 14 to rotate uniformly in an accelerated manner until the rotating speed n of the first overfeeding servo motor 13 c1 And the rotation speed n of the second overfeed servo motor 14 c2 Are all equal to the rated rotating speed n 0 (ii) a The first overfeed servo motor 13 has a rotation speed n c1 And the rotation speed n of the second overfeed servo motor 14 c2 Is uniformly accelerated to n 0 In the process, the rotating speed n of the first overfeeding servo motor 13 and the second overfeeding servo motor 14 is controlled by regulating and controlling the deceleration time c2 Slowly decelerates to ensure that the first bearing tension sensor detects the tension F of the cloth 1 And the second bearing tension sensor detects the tension F of the cloth 2 Always within a deviation range of F 0 Within ± Δ F.
And (3) a deceleration stage:
d) after the winding roller 41 finishes winding, the controller 8 sends out an instruction to control the first overfeeding servo motor 13, the second overfeeding servo motor 14, the unwinding motor 39 and the winding motor to uniformly decelerate at the same acceleration until the first overfeeding servo motor 13, the second overfeeding servo motor 14, the unwinding motor 39 and the winding motor stop.
Preferably, the models of the first overfeeding servo motor 13, the second overfeeding servo motor 14, the unreeling motor 39 and the reeling motor are the same, the tension influence of the synchronous and uniform speed reduction process of the first overfeeding servo motor 13, the second overfeeding servo motor 14, the unreeling motor 39 and the reeling motor on the cloth is small, and the cloth shaping quality can be guaranteed.
Preferably, in the uniform speed stage, when the cloth is conveyed in the center, the distance from the detection probe of the first weft straightening sensor 19 to the side of the cloth is D, and the distance from the detection probe of the second weft straightening sensor 23 to the side of the cloth is D;
firstly, when a detection probe of a second weft straightening sensor 23 on the left side detects cloth, the cloth is indicated to be deviated leftwards integrally, a controller 8 sends an instruction, a driving cylinder 17 drives a sliding block 16 to drive an upper roller of a second overfeeding roller 12 to ascend and separate from the cloth, the cloth is deviated rightwards integrally under the action of a first overfeeding roller 11, when the first weft straightening sensor 19 cannot detect the cloth, the cloth is indicated to be straightened integrally, the controller 8 sends an instruction, and the driving cylinder 17 drives the sliding block 16 to drive the upper roller of the second overfeeding roller 12 to descend to an initial position; and finishing the left deviation correction of the whole cloth.
When the detection probe of the second weft straightening sensor 23 on the right side detects cloth, the cloth is indicated to be wholly deviated to the right, the controller 8 sends an instruction, the driving cylinder 17 drives the sliding block 16 to drive the upper roller of the first overfeeding roller 11 to ascend to separate from the cloth, the cloth is wholly deviated to the left under the action of the second overfeeding roller 12 at the moment, when the first weft straightening sensor 19 cannot detect the cloth, the cloth is indicated to be wholly straightened, the controller 8 sends an instruction, and the driving cylinder 17 drives the sliding block 16 to drive the upper roller of the first overfeeding roller 11 to descend to an initial position; and finishing the right deviation correction of the whole cloth.
Furthermore, in the acceleration stage, the power of the upper fan and the lower fan is gradually increased, and in the deceleration stage, the power of the upper fan and the lower fan is gradually reduced.
The change of the power of the upper fan and the lower fan enables the cloth to obtain the same hot air quantity in the acceleration stage and the deceleration stage, and the shaping quality is ensured.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (3)

1. A method for synchronously controlling textile machinery comprises a transmission system synchronously controlled by the textile machinery, wherein the transmission system synchronously controlled by the textile machinery comprises an unwinding mechanism, a first tension adjusting mechanism, an overfeeding mechanism, a setting machine, a second tension adjusting mechanism, a flattening mechanism, a winding mechanism and a controller, the unwinding mechanism, the first tension adjusting mechanism, the overfeeding mechanism, the setting machine, the second tension adjusting mechanism, the flattening mechanism and the winding mechanism are sequentially arranged along the cloth conveying direction, the overfeeding mechanism comprises a first overfeeding frame and a second overfeeding frame, a first overfeeding roller is arranged on the first overfeeding frame, a second overfeeding roller is arranged on the second overfeeding frame, the lengths of the first overfeeding roller and the second overfeeding roller are the same and are smaller than half of the width of conveyed cloth, a first overfeeding servo motor is also arranged on the first overfeeding frame, the output end of the first overfeeding servo motor is connected with the upper roller of the first overfeeding roller, a second overfeeding servo motor is further installed on the second overfeeding frame, the output end of the second overfeeding servo motor is connected with the upper roller of the second overfeeding roller, the distance between the first overfeeding roller and the distance between the second overfeeding roller are equal and slightly smaller than the thickness of the cloth, and the first overfeeding servo motor and the second overfeeding servo motor are both electrically connected with the controller; vertical sliding grooves are formed in the first super-feeding frame and the second super-feeding frame, sliding blocks are arranged in the sliding grooves, the sliding blocks are respectively and rotatably connected with an upper roller of a first super-feeding double roller and an upper roller of a second super-feeding double roller, and driving cylinders are arranged on the top sides of the sliding blocks; a first bracket is fixedly arranged on the first super-feeding frame and the second super-feeding frame respectively, and a first weft straightening sensor is fixedly arranged on the bottom side of the first bracket; the flattening mechanism comprises a flattening support, a flattening roller is rotatably mounted at the top of the flattening support, second supports are respectively and fixedly mounted on two sides of the flattening support along the width direction of the cloth, second weft straightening sensors are fixedly mounted on the bottom sides of the second supports, and the first weft straightening sensors and the second weft straightening sensors are electrically connected with the controller; the first tension adjusting mechanism comprises a first tension adjusting bracket, a first linear motor is fixedly mounted at the top of the first tension adjusting bracket, a first sliding plate is fixedly mounted at the driving end of the first linear motor, a first tension roller is fixedly mounted at the bottom of the first sliding plate, and a first bearing tension sensor is mounted on a rotating shaft of the first tension roller; the second tension adjusting mechanism comprises a second tension adjusting bracket, a second tension roller is fixedly installed at the top of the second tension adjusting bracket, and a second bearing tension sensor is installed on a rotating shaft of the second tension roller; the first linear motor, the first bearing tension sensor and the second bearing tension sensor are electrically connected with the controller; the forming machine comprises a forming fixing frame, an upper air box and a lower air box which are oppositely arranged up and down are fixedly arranged on the forming fixing frame, an upper air blower and a lower air blower are respectively arranged in the upper air box and the lower air box, a conveying channel for cloth to pass through is arranged between the upper air box and the lower air box, an upper press roller and a lower press roller are rotatably arranged at the inlet end of the conveying channel, a soaking box is arranged on one side of the feeding end of the forming machine, a soaking roller is rotatably arranged in the soaking box, and the cloth is conveyed forwards through a gap between the upper press roller and the lower press roller after passing through the soaking roller; the outlet of the conveying channel is provided with a guide roller; the unwinding mechanism comprises an unwinding support, a controller is fixedly mounted on the top side of the unwinding support, an unwinding roller is rotatably mounted on the unwinding support, and the unwinding roller is in transmission connection with an unwinding motor; the winding mechanism comprises a winding support, a winding roller is fixedly mounted on the winding support, the winding roller is in transmission connection with a winding motor, and the unwinding motor and the winding motor are both electrically connected with the controller;
the method is characterized in that: the method comprises the following steps:
and (3) an acceleration stage:
a) the controller sends out an instruction to control the winding motor to rotate uniformly and quickly, and the rated conveying speed of the cloth is set to be V 0 Rated conveying speed V 0 The rated rotating speed of the corresponding unreeling motor and the reeling motor is n 0 Setting the target conveying tension of cloth to be F 0 The allowable deviation range of the target conveying tension is F 0 Plus or minus delta F, when the first bearing tension sensor and/or the second bearing tension sensor detects that the tension of the cloth is F 0 When the feeding speed is delta F, the controller sends out instructions to control the first overfeeding servo motor, the second overfeeding servo motor and the unreeling motor to rotate uniformly and acceleratively, and the first overfeeding servo motorThe acceleration of the second overfeeding servo motor and the acceleration of the unreeling motor are equal, the reeling motor is controlled to rotate at a constant speed, and the rotating speed n of the reeling motor at the moment 1 <n 0 ；
b) First overfeeding servo motor, second overfeeding servo motor and unreeling motor rotate until evenly accelerating:
when the second bearing tension sensor detects the tension F of the cloth 2 =F 0 + Δ F, and unwinding motor speed n 2 <n 1 <n 0 When the feeding device is used, the controller sends out an instruction to control the first overfeeding servo motor, the second overfeeding servo motor and the unreeling motor to be driven by n 2 The rotating speed n of the winding motor is controlled by the controller at a constant speed 1 Uniformly decelerating to n 2 (ii) a The rotating speed n of the winding motor 1 Uniformly decelerating to n 2 In the process of (3), the second bearing tension sensor is made to detect the tension F of the cloth 2 Always within a deviation range of F 0 Within +/-Delta F; the controller sends out instructions to control the rotating speeds of the first overfeeding servo motor, the second overfeeding servo motor, the unreeling motor and the reeling motor to be uniformly accelerated to n 0 ；
When the unwinding motor rotates at the speed of n 2 =n 1 <n 0 And the second bearing tension sensor detects the tension F of the cloth 2 <F 0 When the voltage is + delta F, the controller sends out instructions to control the rotating speeds of the first overfeeding servo motor, the second overfeeding servo motor, the unreeling motor and the reeling motor to be n 1 Is uniformly accelerated to n 0 ；
A uniform speed stage:
c) when the first overfeeding servo motor, the second overfeeding servo motor, the unreeling motor and the reeling motor rotate at a rated speed n 0 Synchronously rotating at a constant speed, and the allowable deviation range of the tension of the cloth in the target conveying tension is F 0 When the temperature is within +/-delta F, the system enters a constant speed stage; in the uniform speed stage:
when the first bearing tension sensor and/or the second bearing tension sensor detect the tension F of the cloth 1 =F 2 >F 0 When + delta F, the controller sends out a command to control the first overfeeding servo motor and the second overfeeding servo motorThe machine is accelerated and rotated uniformly, and at the same time the controller gives out instruction to control first linear motor to drive first tension roller to make downward movement until F 1 =F 2 =F 0 ；
The controller sends out an instruction to control the first overfeeding servo motor and the second overfeeding servo motor to uniformly decelerate and rotate until the rotating speed n of the first overfeeding servo motor c1 And a second overfeed servomotor speed n c2 Are all equal to the rated rotating speed n 0 (ii) a The first overfeed servo motor has a rotation speed n c1 And a second overfeed servomotor speed n c2 Uniformly decelerating to n 0 In the process of (2), the first bearing tension sensor is made to detect the tension F of the cloth 1 And the second bearing tension sensor detects the tension F of the cloth 2 Always within a deviation range of F 0 Within +/-Delta F;
secondly, when the first bearing tension sensor and/or the second bearing tension sensor detect the tension F of the cloth 1 =F 2 <F 0 When the tension is delta F, the controller sends a command to control the first overfeeding servo motor and the second overfeeding servo motor to uniformly decelerate and rotate, and simultaneously, the controller sends a command to control the first linear motor to drive the first tension roller to move upwards until F 1 =F 2 =F 0 ，
The controller sends out an instruction to control the first overfeeding servo motor and the second overfeeding servo motor to rotate uniformly and acceleratively until the rotating speed n of the first overfeeding servo motor c1 And a second overfeed servomotor speed n c2 Are all equal to the rated rotating speed n 0 (ii) a The first overfeed servo motor has a rotation speed n c1 And a second overfeed servomotor speed n c2 Is uniformly accelerated to n 0 In the process of (3), the first bearing tension sensor is made to detect the tension F of the cloth 1 And the second bearing tension sensor detects the tension F of the cloth 2 Always within a deviation range of F 0 Within +/-Delta F;
and (3) a deceleration stage:
d) after the winding roller finishes winding, the controller sends an instruction to control the first overfeeding servo motor, the second overfeeding servo motor, the unwinding motor and the winding motor to uniformly decelerate and rotate at the same acceleration until the first overfeeding servo motor, the second overfeeding servo motor, the unwinding motor and the winding motor stop.
2. The method for synchronously controlling the textile machinery as claimed in claim 1, wherein in the uniform speed stage, when the cloth is conveyed in the center, the distance from the detection probe of the first weft straightening sensor to the side of the cloth is D, and the distance from the detection probe of the second weft straightening sensor to the side of the cloth is D;
firstly, when a detection probe of a second weft straightening sensor on the left side detects cloth, a driving cylinder drives a sliding block to drive an upper roller of a second overfeeding roller to ascend and separate from the cloth, and when the first weft straightening sensor cannot detect the cloth, the driving cylinder drives the sliding block to drive the upper roller of the second overfeeding roller to descend to an initial position;
and secondly, when the detection probe of the second weft straightening sensor on the right side detects the cloth, the driving cylinder drives the sliding block to drive the upper roller of the first overfeeding roller to ascend and separate from the cloth, and when the first weft straightening sensor cannot detect the cloth, the driving cylinder drives the sliding block to drive the upper roller of the first overfeeding roller to descend to the initial position.
3. The method of claim 1, wherein the power of the upper and lower fans is gradually increased during the acceleration phase and gradually decreased during the deceleration phase.
CN202210389923.5A 2022-04-14 2022-04-14 Transmission system and method for synchronous control of textile machinery Active CN114476789B (en)

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JPH0917419A (en) * 1995-06-27 1997-01-17 Matsushita Electric Ind Co Ltd Meandering prevention device for hoop material
CN101112935A (en) * 2006-07-28 2008-01-30 姚福来 Tension detecting rack with telescopic function
CN112061850A (en) * 2020-08-24 2020-12-11 常州市宏大电气有限公司 Correction module, correction mechanism and correction method
CN213866876U (en) * 2020-10-28 2021-08-03 常州宏大智能装备产业发展研究院有限公司 Fabric density control device of setting machine
CN112960477A (en) * 2021-02-03 2021-06-15 浙江理工大学 Winding forming control method for detecting and dynamically adjusting tension in real time

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Denomination of invention: A transmission system and method for synchronous control of textile machinery

Effective date of registration: 20230222

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Pledgee: Zhejiang Xiaoshan rural commercial bank Limited by Share Ltd. Jingjiang branch

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