CN110055672B - Circular weft knitting machine - Google Patents
Circular weft knitting machine Download PDFInfo
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- CN110055672B CN110055672B CN201910410860.5A CN201910410860A CN110055672B CN 110055672 B CN110055672 B CN 110055672B CN 201910410860 A CN201910410860 A CN 201910410860A CN 110055672 B CN110055672 B CN 110055672B
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- creel
- driving
- yarn
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- wheel
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/38—Devices for supplying, feeding, or guiding threads to needles
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/94—Driving-gear not otherwise provided for
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/94—Driving-gear not otherwise provided for
- D04B15/99—Driving-gear not otherwise provided for electrically controlled
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Warping, Beaming, Or Leasing (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention relates to a circular weft knitting machine for knitting, which relates to the technical field of textile processing equipment and comprises a creel, a plurality of yarn feeders circumferentially distributed along the periphery of the creel, yarn conveying wheels rotatably arranged on the yarn feeders, and a driving mechanism arranged on a rack, wherein the driving mechanism comprises driving wheels coaxially fixed with the yarn conveying wheels, synchronous belts which bypass the driving wheels and are respectively meshed with the driving wheels, power wheels rotatably arranged on the creel and are meshed with the synchronous belts, a driving motor driven by the driving power wheels arranged on the creel, a sliding seat arranged on the creel in a sliding manner along the direction close to or far away from the yarn feeders, adjusting wheels rotatably arranged on the sliding seat and meshed with the synchronous belts, and a driving assembly for driving the sliding seat to slide, and yarns are led out from a yarn barrel and then wound on the peripheral side wall of the yarn conveying wheels. The invention has the effect of adjusting the tension of the synchronous belt to avoid the slipping phenomenon between the synchronous belt and the driving wheel, thereby improving the production efficiency.
Description
Technical Field
The invention relates to the technical field of textile processing equipment, in particular to a circular weft knitting machine.
Background
At present, the common fabric knitting modes in the textile industry include warp knitting and weft knitting, the weft knitting is that one or a plurality of yarns simultaneously form loops along the transverse direction of the fabric by knitting needles in sequence, and the loops are mutually interlooped in the longitudinal direction to form a weft knitting fabric, and the weft knitting can be divided into a single-sided fabric and a double-sided fabric. Weft knitting: and the weft running yarns are bent up and down section by section to form loops, and the loops formed by the last yarns are sequentially penetrated through the loops to form the fabric through circulating winding. The existing weaving processing equipment mainly adopts a circular weft knitting machine for knitting by adopting a weft knitting weaving mode. The circular weft knitting machine has the advantages of more loop forming systems (called yarn feeding path number or loop forming path number in enterprises, path number for short), high rotating speed, high yield, quick pattern change, good fabric quality, few working procedures and strong product adaptability, so the circular weft knitting machine is developed quickly.
Chinese invention with publication number CN101736504A discloses a synchronous transmission mechanism for yarn feeders, comprising a plurality of transmission wheels of yarn feeders arranged circumferentially and an annular synchronous belt, wherein the outer edge of the transmission wheel is provided with a plurality of protrusions wound at equal intervals, and the annular synchronous belt is provided with a plurality of concave holes at the same interval length as the transmission wheels, so that the protrusions are matched with the concave holes. In the invention, the yarn is led out from a bobbin and then wound on a yarn feeder, the other end of the yarn is sent into a weft knitting machine for knitting, and the annular synchronous belt is matched with the driving wheels of the plurality of yarn feeders through the protrusions and the concave holes, so that the annular synchronous belt drives the plurality of yarn feeders to operate in the transmission process to drive the wound yarn to be transported, thereby completing the transmission of the yarn.
The above prior art solutions have the following drawbacks: because the annular synchronous belt realizes protruding cooperation with the shrinkage pool through the tension of self, produce deformation easily after the annular synchronous belt uses for a long time, and make annular synchronous belt take place deformation, take place the phenomenon of skidding easily between the drive wheel of annular synchronous belt and defeated yarn ware to reduce the rotational speed of defeated yarn ware, reduce the transmission rate of yarn, thereby reduce production efficiency.
Disclosure of Invention
The invention aims to provide a circular weft knitting machine capable of adjusting the tension of a synchronous belt, avoiding the phenomenon of slipping of the synchronous belt and a driving wheel and improving the production efficiency.
The above object of the present invention is achieved by the following technical solutions:
a circular weft knitting machine comprises a creel, a plurality of yarn feeders distributed along the circumferential direction of the creel in a surrounding mode, yarn feeding wheels arranged on the yarn feeders in a rotating mode, and a driving mechanism arranged on a machine frame and used for driving the yarn feeding wheels to run, wherein the driving mechanism comprises driving wheels coaxially fixed with the yarn feeding wheels, synchronous belts, power wheels, driving motors, sliding seats, adjusting wheels and a driving assembly, the synchronous belts are connected with the driving wheels in a meshing mode, the synchronous belts are arranged on the creel in a bypassing mode and are connected with the driving wheels in an all-meshed mode, the power wheels are arranged on the creel in a rotating mode and are meshed with the synchronous belts, the driving motors are arranged on the creel and drive the driving motors, the sliding seats are arranged on the creel in a sliding mode along the direction close to or far away from the yarn feeders, the adjusting wheels are arranged on the sliding seats in a.
By adopting the technical scheme, the driving motor drives the power wheel to rotate, the power wheel drives the synchronous belt to transmit, so that the synchronous belt drives the plurality of driving wheels to synchronously rotate, and the driving wheels drive the yarn conveying wheel to rotate, so that the yarn wound on the yarn conveying wheel is output from the yarn bobbin and input into the weft knitting machine to be woven; the driving assembly drives the adjusting wheel to be far away from the yarn conveying wheel, so that the transmission path of the synchronous belt is prolonged, the synchronous belt is tightened, the tension of the synchronous belt is improved, the effect of adjusting the tension of the synchronous belt is achieved, the phenomenon that the synchronous belt slips from the transmission wheel is avoided, and the production efficiency is improved; the sliding column improves the sliding stability of the sliding seat and reduces the lateral deviation of the sliding seat.
The invention is further configured to: the drive assembly comprises a slide rail, a slide column, a screw rod and a drive screw rod rotating driving piece, wherein the slide rail is arranged on the creel and used for sliding the slide seat, the slide column is arranged on one side of the slide rail in parallel, the screw rod is connected with the creel in a rotating mode and threaded on the slide seat in a penetrating mode, the drive screw rod is arranged on the creel in a rotating mode, the drive screw rod rotating driving piece is arranged on the creel, and.
By adopting the technical scheme, the screw drives the sliding seat to move along the sliding rail so as to enable the transmission wheel to be far away from the yarn conveying wheel, the transmission path of the synchronous belt is prolonged, the synchronous belt is tightened, the tension of the synchronous belt is improved, the effect of adjusting the tension of the synchronous belt is achieved, the workload of workers is reduced, and the production efficiency is improved; the sliding column improves the sliding stability of the sliding seat and reduces the lateral deviation of the sliding seat.
The invention is further configured to: the driving piece comprises a stepping motor arranged on the creel, and an output shaft of the stepping motor is coaxially fixed with the screw rod.
Through adopting above-mentioned technical scheme, when the tension of hold-in range is adjusted to needs, the step motor is opened, step motor's output shaft drives screw rod synchronous rotation, and the screw rod drives the slide and removes so that the transmission wheel keeps away from defeated yarn wheel, prolongs the transmission route of hold-in range to this makes the hold-in range tighten, improves the tension of hold-in range, plays the effect of adjusting hold-in range tension, reduces staff's work load, improves production efficiency.
The invention is further configured to: the yarn feeder is characterized in that a locking assembly is arranged between the sliding rail and the sliding seat, the locking assembly comprises a ratchet bar arranged on the sliding rail along the length direction of the sliding rail, a pawl arranged on the sliding seat in a rotating mode, and an elastic piece, the two ends of the elastic piece are respectively connected with the sliding seat and the pawl to enable the tip end of the pawl to tightly abut against the tooth socket of the ratchet bar, and the tip end of the pawl faces one side of the yarn feeder.
Through adopting above-mentioned technical scheme, when the tension of hold-in range is adjusted to needs, the step motor is opened, the screw rod drives the slide and removes so that the hold-in range is tightened, improve the tension of hold-in range, the pawl slides along the teeth of a cogwheel inclined plane on ratchet bar surface this moment, when step motor stops, produce the phenomenon of skidding because of vibrating easily between slide and the screw rod, consequently, the slide slides backward at the tension of hold-in range, the pawl is at the effect of elastic component down with the teeth of a cogwheel joint of the slope on the ratchet bar this moment, thereby avoid the skew of slide and make the hold-in range lax, thereby avoid taking place the supply that the phenomenon of skidding and influence the yarn between hold-in range and the transmission.
The invention is further configured to: the pawl comprises a lantern ring which is rotatably arranged on the sliding seat, a hook-shaped block which is connected with the lantern ring and the tip of which abuts against the tooth socket of the ratchet bar, and a bolt which penetrates through the hook-shaped block and is in threaded connection with the lantern ring, wherein the lantern ring and the ratchet bar are distributed at intervals.
Through adopting above-mentioned technical scheme, when needs loosen the hold-in range, because be in the chucking state between pawl and the ratchet bar, be difficult to loosen both, consequently conveniently collude dismantling of form piece and the lantern ring through the elasticity bolt to this removes the lock-up state of colluding form piece and ratchet bar, makes things convenient for the adjustment of hold-in range.
The invention is further configured to: be provided with the determine module on the creel, the determine module includes along the trigger block that slides the setting on the creel with synchronous belt drive direction vertically direction, rotates the setting and supplies the winding trigger wheel of hold-in range, set up on the creel and with the pressure sensor of trigger block butt on the trigger block to and set up on the creel and be connected with the controller of receiving the signal of telecommunication with pressure sensor electricity, the controller is connected with driving motor electricity and opens and stop with control driving motor, the hold-in range of trigger wheel both sides is the contained angle so that the hold-in range supports tightly and triggers wheel week lateral wall.
Through adopting above-mentioned technical scheme, the hold-in range is walked around and is triggered the wheel, and the hold-in range that triggers the wheel both sides is the contained angle so that the hold-in range supports tightly and triggers wheel week lateral wall, when the hold-in range produced tension, the hold-in range applys pressure to triggering the wheel, so that trigger block produces pressure to pressure sensor, when pressure sensor's pressure value reached the setting value, when hold-in range tension was too big to tend to the fracture promptly, the controller triggered and control driving motor and stopped, with this avoid the hold-in range fracture, thereby protection hold-in range.
The invention is further configured to: and a digital display screen which is electrically connected with the controller to receive the electric signal and display the pressure value is arranged on the creel.
Through adopting above-mentioned technical scheme, set up the digital display screen on the creel, pressure sensor detects the pressure that triggers the piece and exert to send the signal of telecommunication to the controller, the controller is to digital display screen output signal with showing the pressure value, with this tension value on showing the hold-in range, thereby makes things convenient for the staff to adjust the tension of hold-in range, improves and adjusts the precision.
The invention is further configured to: the tray is coaxially fixed on one side of the bottom of the power wheel, the tray is circular, the diameter of the tray is larger than that of the power wheel, a disc is coaxially fixed on one side of the top of the power wheel, a stud penetrates through the disc and is in threaded connection with the disc, and the bottom end of the stud is tightly abutted against the tray.
Through adopting above-mentioned technical scheme, when the hold-in range broke off, the staff only need rotate the double-screw bolt and make it support tight tray, and restart driving motor made the hold-in range and walked around the double-screw bolt this moment, made the hold-in range of driving wheel both sides be in the same place, and the driving wheel rotates the in-process and packs up cracked hold-in range this moment to reduce the time of clearance fracture hold-in range, improve maintenance efficiency.
The invention is further configured to: be provided with the clearance subassembly on the creel, the clearance subassembly is including setting up air cock on the creel, the gas-supply pipe that communicates with the air cock to and set up in creel one side and with the air supply source of gas-supply pipe intercommunication, the air outlet of air cock and the inner circle that the hold-in range distributes and has the teeth of a cogwheel are relative.
Through adopting above-mentioned technical scheme, provide high-pressure gas through the air feed source, high-pressure gas passes through in the gas-supply pipe gets into the air cock, and the air cock is relative with the teeth of a cogwheel face of hold-in range to this gets rid of impurity such as the stub on the hold-in range through high-pressure gas, avoids impurity such as stub to cause the jam of hold-in range and drive wheel, thereby improve equipment operation's stability.
The invention is further configured to: the trigger wheel is positioned at the input side of the synchronous belt of the power wheel.
Through adopting above-mentioned technical scheme, when driving motor started, the power wheel drove synchronous belt drive, this moment because the traction force effect of drive wheel makes the hold-in range overcome with the frictional force of drive wheel carry out accelerated motion, and the frictional force that the hold-in range of the input of power wheel received is the biggest with traction force, therefore the inside tension of hold-in range is the biggest, detect the maximum pressure value of hold-in range through pressure sensor, thereby elasticity hold-in range is in order to avoid hold-in range tension too big and stretch over absolutely, improve equipment operation's stability.
In conclusion, the beneficial technical effects of the invention are as follows:
1. the driving assembly drives the adjusting wheel to be far away from the yarn conveying wheel, so that the transmission path of the synchronous belt is prolonged, the synchronous belt is tightened, the tension of the synchronous belt is improved, the effect of adjusting the tension of the synchronous belt is achieved, the phenomenon that the synchronous belt slips from the transmission wheel is avoided, and the production efficiency is improved; the sliding column improves the sliding stability of the sliding seat and reduces the lateral deviation of the sliding seat;
2. an output shaft of the stepping motor drives the screw to synchronously rotate, the screw drives the sliding seat to move along the sliding rail so as to enable the driving wheel to be far away from the yarn conveying wheel, and a driving path of the synchronous belt is prolonged, so that the synchronous belt is tightened, the tension of the synchronous belt is improved, the effect of adjusting the tension of the synchronous belt is achieved, the workload of workers is reduced, and the production efficiency is improved;
3. when the pressure value of the pressure sensor reaches a set value, namely the tension of the synchronous belt is too large and tends to break, the controller triggers and controls the driving motor to stop, so that the synchronous belt is prevented from breaking, and the synchronous belt is protected.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of a portion of the structure of the present invention, showing primarily the screw;
FIG. 3 is an enlarged partial schematic view of portion A of FIG. 1;
FIG. 4 is an enlarged partial schematic view of portion B of FIG. 1;
fig. 5 is an enlarged schematic view of a part of the structure of the present invention, mainly showing the trigger block.
Reference numerals: 1. a frame; 11. a creel; 111. a yarn feeder; 112. a yarn conveying wheel; 2. a drive mechanism; 21. a driving wheel; 22. a synchronous belt; 23. a power wheel; 231. a tray; 232. a disc; 233. a stud; 234. a drive motor; 24. a slide base; 25. an adjustment wheel; 3. a drive assembly; 31. a slide rail; 32. a traveler; 33. a screw; 34. a drive member; 341. a stepping motor; 4. a locking assembly; 41. a ratchet bar; 42. a pawl; 421. a collar; 422. a hook-shaped block; 423. a bolt; 43. an elastic member; 5. a detection component; 51. a trigger block; 511. a trigger wheel; 52. a pressure sensor; 53. a controller; 54. a digital display screen; 6. cleaning the assembly; 61. an air tap; 62. a gas delivery pipe; 63. and an air supply source.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the circular weft knitting machine disclosed by the invention comprises a creel 11, a plurality of yarn feeders 111 circumferentially distributed along the creel 11, yarn feeding wheels 112 arranged on the yarn feeders 111, and a driving mechanism 2 arranged on a frame 1 and used for driving the yarn feeding wheels 112 to operate. The creel 11 is a circular frame, the frame 1 for supporting the creel 11 is placed on the ground, the creel 11 is fixed at the top of the frame 1 through screws, a plurality of yarn drums for providing yarns are placed on the peripheral side of the creel 11, and the yarns on the yarn drums are transferred through the yarn feeder 111 and then enter the weft knitting machine for knitting.
The yarn feeders 111 are distributed at equal angular intervals along the circumferential direction of the creel 11, and the yarn feeding wheel 112 is cylindrical and is rotatably connected with the yarn feeder 111 through a bearing. The yarn is wound on the yarn conveying wheel 112 for a plurality of circles to form a coil, one end of the coil enters the weft knitting machine to be knitted, the other end of the coil is wound on the yarn barrel to store the yarn, meanwhile, the yarn generates tension through the friction force between the yarn and the yarn conveying wheel 112, the yarn is convenient to knit, and the loosening phenomenon after cloth knitting is reduced.
Referring to fig. 1 and 2, the driving mechanism 2 includes driving wheels 21, a timing belt 22 passing around the plurality of driving wheels 21, a power wheel 23 rotatably disposed on the creel 11 and engaged with the timing belt 22, a driving motor 234 disposed on the creel 11 and driving the timing belt 22 to drive, a sliding seat 24 slidably disposed on the creel 11 in a direction close to or away from the yarn feeder 111, an adjusting wheel 25 engaged with the timing belt 22, and a driving assembly 3 driving the sliding seat 24 to slide. The driving wheel 21 is cylindrical, the central axis of the driving wheel 21 is superposed with the central axis of the yarn conveying wheel 112, and the driving wheel 21 and the yarn conveying wheel 112 are coaxially fixed. The synchronous belt 22 is made of rubber, gear teeth are distributed on the inner ring of the synchronous belt 22, tooth grooves connected with the gear teeth in a meshed mode are distributed on the circumferential side wall of the transmission wheel 21, the synchronous belt 22 is circumferentially distributed in a closed ring shape along the creel 11, and the transmission wheels 21 are all connected with the synchronous belt 22 in a meshed mode.
The driving motor 234 is fixed on one side of the creel 11 through a screw, an output shaft of the driving motor 234 is coaxially fixed with the power wheel 23, so as to drive the power wheel 23 to rotate, the power wheel 23 drives the plurality of driving wheels 21 to synchronously rotate, and the driving wheels 21 drive the synchronous belt 22 to drive the yarn conveying wheel 112 to rotate, so that the yarn wound on the yarn conveying wheel 112 is output from the yarn barrel and is input to the weft knitting machine for weaving. The two sides of the power wheel 23 on the creel 11 are provided with steering wheels through bearings in a rotating mode, the steering wheels are cylindrical, and the outer ring of the synchronous belt 22 is in rolling connection with the peripheral side wall of the steering wheels, so that the synchronous belt 22 is steered, and the synchronous belt 22 is always abutted to the driving wheels 21 on the two adjacent sides of the power wheel 23.
The coaxial tray 231 that is fixed with in bottom one side of power wheel 23, the coaxial disc 232 that is fixed with in top one side of power wheel 23, tray 231 and disc 232 all are circular and the diameter all is greater than power wheel 23, the diameter of tray 231 is greater than disc 232, tray 231, disc 232 all with driving motor 234's output shaft welded fastening. A stud 233 passes through the disc 232 and is in threaded connection with the disc 232, and the bottom end of the stud 233 abuts against the eccentric position of the tray 231. When the synchronous belt 22 breaks, the staff only need rotate the double-screw bolt 233 and make it support tight tray 231, restart driving motor 234 this moment makes synchronous belt 22 bypass double-screw bolt 233, make the synchronous belt 22 of driving wheel 23 both sides be in the same place, driving wheel 23 rotates the in-process and packs up cracked synchronous belt 22 this moment to reduce the time of clearance fracture synchronous belt 22, improve maintenance efficiency.
The slide seat 24 is in a cuboid shape and located on one side, away from the driving motor 234, of the creel 11, the adjusting wheel 25 is located at the top of the slide seat 24 and is connected with the slide seat 24 through a bearing in a rotating mode, the adjusting wheel 25 is located on the outer side of the creel 11, the synchronous belt 22 protrudes towards the outer side of the creel 11 and bypasses the adjusting wheel 25, a guide wheel is arranged between the adjusting wheel 25 and the adjacent driving wheel 21 in a rotating mode, the outer ring of the synchronous belt 22 is connected with the peripheral side wall of the guide wheel in a rolling mode, the guide wheel and the guide wheel are identical in size and are parallel to each other in rotating axis, the synchronous belt 22 is always tightly abutted to the driving wheels 21 on the two adjacent sides of.
The driving assembly 3 comprises a sliding rail 31 arranged on the creel 11 and used for sliding the sliding seat 24, a sliding column 32 arranged on one side of the sliding rail 31 in parallel, a screw 33 rotatably connected with the creel 11, and a driving piece 34 arranged on the creel 11 and used for driving the screw 33 to rotate. The sliding column 32, the sliding rail 31 and the screw 33 are all distributed along the radial direction of the creel 11, and the sliding column 32, the sliding rail 31 and the screw 33 are parallel to each other. The sliding rail 31 is made of channel steel, the opening of the channel steel faces upwards, the sliding column 32 is in a hexagonal prism shape, two ends of the sliding column 32 are fixed with the creel 11 through screws, and the sliding column 32 penetrates through the sliding seat 24 and is connected with the sliding seat 24 in a sliding mode, so that the sliding stability of the sliding seat 24 is improved, and the lateral deviation of the sliding seat 24 is reduced.
The driving member 34 includes a stepping motor 341 disposed on the creel 11, the stepping motor 341 is fixed to the creel 11 by a screw, one end of the screw 33 is threaded through the sliding base 24, and the other end is coaxially fixed to an output shaft of the stepping motor 341. The output shaft of the stepping motor 341 drives the screw 33 to rotate synchronously, so that the workload of workers is reduced, and the production efficiency is improved.
Referring to fig. 1 and 3, a locking assembly 4 is disposed between the sliding rail 31 and the sliding base 24, the locking assembly 4 includes a ratchet bar 41 disposed on the sliding rail 31, a pawl 42 rotatably disposed on the sliding base 24, and an elastic member 43 having two ends respectively connected to the sliding base 24 and the pawl 42 so that a tip of the pawl 42 abuts against a tooth groove of the ratchet bar 41, and a tip of the pawl 42 faces one side of the yarn feeder 111. The teeth of the ratchet bar 41 are inclined and serrated, and the sharp end of the teeth of the ratchet bar faces the pawl 42, and the ratchet bar 41 is distributed along the length direction of the slide rail 31 and is integrally formed with the inner side wall of the slide rail 31.
The pawl 42 is raindrop-shaped, and the pawl 42 includes a ring 421 arranged on the sliding seat 24, a hook-shaped block 422 connected with the ring 421, and a bolt 423 passing through the hook-shaped block 422 and being in threaded connection with the ring 421, wherein the hook-shaped block 422 is fixedly connected with the ring 421 when the bolt 423 is screwed down. The ring 421 is circular and is rotatably connected to the sliding seat 24, and the ring 421 and the ratchet bar 41 are spaced apart from each other, so as to prevent the ring 421 from contacting the ratchet bar 41. The tip of the hook 422 abuts against the tooth groove of the ratchet bar 41, and when the slider 24 moves toward the tip of the pawl 42, the hook 422 engages with the tooth groove of the ratchet bar 41, thereby locking the sliding direction of the slider 24. The elastic member 43 is a spring plate with good elasticity, one end of the spring plate is welded and fixed with the slide seat 24, and the other end is welded and fixed with the outer ring peripheral side wall of the lantern ring 421.
Referring to fig. 1 and 4, a cleaning assembly 6 is arranged on the creel 11, the cleaning assembly 6 includes an air nozzle 61, an air pipe 62 communicated with the air nozzle 61, and an air supply source 63 arranged on one side of the creel 11 and communicated with the air pipe 62, and an air outlet of the air nozzle 61 is opposite to an inner ring of the synchronous belt 22 on which the gear teeth are distributed. The air nozzle 61 is fixed with the creel 11 through an anchor ear, an air outlet of the air nozzle 61 is far away from the center of the creel 11 and is opposite to an inner ring of the synchronous belt 22, the air conveying pipe 62 adopts a hose so as to facilitate the assembly and disassembly of the air nozzle 61, the air supply source 63 adopts an air compressor, and the air compressor is placed on one side of the frame 1. Air compressor provides high-pressure gas to gas-supply pipe 62, and high-pressure gas passes through gas-supply pipe 62 and gets into in air cock 61, and air cock 61 is relative with the teeth of a cogwheel face of hold-in range 22 to this gets rid of impurity such as the stub on the hold-in range 22 through high-pressure gas, avoids impurity such as stub to cause the jam of hold-in range 22 and drive wheel 21, thereby improve equipment operation's stability.
Referring to fig. 1 and 5, a detection assembly 5 is arranged on the creel 11, the detection assembly 5 comprises a trigger block 51 slidably arranged on the creel 11 along a direction perpendicular to a transmission direction of the synchronous belt 22, a trigger wheel 511 arranged on the trigger block 51, a pressure sensor 52 arranged on the creel 11 and located on one side of the trigger block 51, and a controller 53 arranged on the creel 11 and electrically connected with the pressure sensor 52 to receive an electric signal. The creel 11 is provided with a square rod-shaped guide post 53 along the radial direction, the guide post 53 is positioned between the sliding seat 24 and the driving motor 234, one end of the guide post 53 is welded and fixed with the creel 11, the guide post 53 penetrates through the trigger block 51, and the trigger block 51 is connected with the guide post 53 in a sliding mode.
The trigger block 51 is rectangular, the trigger wheel 511 is positioned at the top of the trigger block 51 and is rotationally connected with the trigger block 51 through a bearing, the synchronous belt 22 is sunken towards the center side of the creel 11, the smooth outer ring wall of the synchronous belt is in rolling connection with the peripheral side wall of the trigger wheel 511, and the synchronous belts 22 on two sides of the trigger wheel 511 form an included angle so that the synchronous belt 22 is tightly abutted against the peripheral side wall of the trigger wheel 511. And the trigger wheel 511 is located on the timing belt 22 input side of the power wheel 23.
The pressure sensor 52 is located on one side of the trigger wheel 511 away from the timing belt 22, and the internal tension of the timing belt 22 drives the trigger wheel 511 to drive the trigger block 51 to abut against the sensing position of the pressure sensor 52. The pressure sensor 52 adopts a DJWX-08 force transducer, and the DJWX-08 force transducer has good precision, so that the pressure value of the trigger block 51 is detected, and the error is reduced. The controller 53 is placed on one side of the creel 11, adopts an SDJ-2KW universal motor controller, is accurately controlled by the SDJ-2KW universal motor controller, and is electrically connected with the driving motor 234 to control the driving motor 234 to start and stop. When the synchronous belt 22 generates tension, the synchronous belt 22 applies pressure to the trigger wheel 511, so that the trigger block 51 generates pressure on the pressure sensor 52, and when the pressure value of the pressure sensor 52 reaches a set value, i.e. when the tension of the synchronous belt 22 is too large and tends to break, the controller 53 triggers and controls the driving motor 234 to stop, thereby preventing the synchronous belt 22 from breaking, and protecting the synchronous belt 22.
When the driving motor 234 is started, the power wheel 23 drives the synchronous belt 22 to drive, at this time, the synchronous belt 22 overcomes the friction force with the driving wheel 21 to perform accelerated motion due to the traction force of the driving wheel 21, so the friction force and the traction force borne by the synchronous belt 22 at the input end of the power wheel 23 are the largest, and the tension inside the synchronous belt 22 is the largest. The trigger wheel 511 is mounted on the input side of the synchronous belt 22 of the power wheel 23, so that the maximum pressure value of the synchronous belt 22 is detected through the pressure sensor 52, the synchronous belt 22 is loosened and loosened to avoid the over-tension and snapping of the synchronous belt 22, and the running stability of the equipment is improved.
The creel 11 is provided with a digital display screen 54 for displaying numerical values, the digital display screen 54 is fixed with one side of the frame 1 through screws, and the digital display screen 54 is electrically connected with the controller 53 to receive electric signals and display pressure values. Pressure sensor 52 detects the pressure that triggers block 51 and applys to send the signal of telecommunication to controller 53, controller 53 to digital display 54 output signal with the demonstration pressure value to this tension value on showing hold-in range 22, thereby make things convenient for the staff to adjust the tension of hold-in range 22, improve and adjust the precision.
The implementation principle of the embodiment is as follows: an operator only needs to measure and calculate the tension of the synchronous belt 22 according to the pressure value displayed on the digital display screen 54, then the stepping motor 341 is started, the stepping motor 341 drives the screw 33 to rotate, the screw 33 drives the sliding seat 24 to move along the sliding rail 31 so as to enable the transmission wheel 21 to be far away from the yarn conveying wheel 112, the transmission path of the synchronous belt 22 is prolonged, the synchronous belt 22 is tightened, the tension of the synchronous belt 22 is improved, the effect of adjusting the tension of the synchronous belt 22 is achieved, the phenomenon that the synchronous belt 12 and the transmission wheel 21 slip is avoided, and the production efficiency is improved.
When the sliding base 24 slides, the pawl 42 slides along the inclined plane of the gear teeth on the surface of the ratchet bar 41, when the stepping motor 341 stops, the sliding phenomenon is easily generated between the sliding base 24 and the screw rod 33 due to vibration, so that the sliding base 24 slides and slides back under the tension of the synchronous belt 22, and at the moment, the pawl 42 is clamped with the inclined gear teeth on the ratchet bar 41 under the action of the elastic piece 43, so that the synchronous belt 22 is prevented from being loosened due to the deviation of the sliding base 24, the phenomenon that the yarn is supplied is prevented from being influenced due to the sliding between the synchronous belt 22 and the transmission, and the running stability of the device is improved.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (9)
1. A circular weft knitting machine comprises a creel (11), a plurality of yarn feeders (111) distributed circumferentially along the creel (11), yarn conveying wheels (112) rotatably arranged on the yarn feeders (111), and a driving mechanism (2) arranged on a machine frame (1) and used for driving the yarn conveying wheels (112) to run, and is characterized in that the driving mechanism (2) comprises driving wheels (21) coaxially fixed with the yarn conveying wheels (112), synchronous belts (22) bypassing the driving wheels (21) and meshed with the driving wheels (21), power wheels (23) rotatably arranged on the creel (11) and meshed with the synchronous belts (22), driving motors (234) driven by the driving power wheels (23) arranged on the creel (11), sliding seats (24) arranged on the creel (11) in a sliding manner along the direction close to or far away from the yarn feeders (111), and adjusting wheels (25) rotatably arranged on the sliding seats (24) and meshed with the synchronous belts (22), and a driving component (3) for driving the sliding seat (24) to slide, the yarn is led out from the yarn bobbin and then wound on the peripheral side wall of the yarn conveying wheel (112), the creel (11) is provided with a detection assembly (5), the detection assembly (5) comprises a trigger block (51) which is arranged on the creel (11) in a sliding way along the direction vertical to the transmission direction of the synchronous belt (22), a trigger wheel (511) which is rotatably arranged on the trigger block (51) and is used for winding the synchronous belt (22), and a pressure sensor (52) which is arranged on the creel (11) and is abutted against the trigger block (51), and a controller (53) arranged on the creel (11) and electrically connected with the pressure sensor (52) to receive an electric signal, the controller (53) is electrically connected with the driving motor (234) to control the start and stop of the driving motor (234), the synchronous belts (22) on the two sides of the trigger wheel (511) form included angles so that the synchronous belts (22) tightly abut against the peripheral side walls of the trigger wheel (511).
2. A circular weft knitting machine according to claim 1, characterized in that the drive assembly (3) comprises a slide rail (31) arranged on the creel (11) for sliding the slide (24), a slide bar (32) arranged parallel to one side of the slide rail (31), a screw (33) rotatably connected to the creel (11) and threaded onto the slide (24), and a drive member (34) arranged on the creel (11) for driving the screw (33) to rotate, the slide bar (32) passing through the slide (24) and being slidably connected to the slide (24).
3. A circular weft knitting machine according to claim 2, characterized in that the drive (34) comprises a stepping motor (341) arranged on the creel (11), the output shaft of the stepping motor (341) being fixed coaxially to the screw (33).
4. A circular weft knitting machine according to claim 2 characterized in that a locking assembly (4) is arranged between the sliding rail (31) and the sliding carriage (24), the locking assembly (4) comprises a ratchet rack (41) arranged on the sliding rail (31) along the length direction of the sliding rail (31), a pawl (42) rotatably arranged on the sliding carriage (24), and an elastic member (43) with two ends respectively connected with the sliding carriage (24) and the pawl (42) to enable the tip of the pawl (42) to abut against the tooth groove of the ratchet rack (41), and the tip of the pawl (42) faces one side of the yarn feeder (111).
5. A circular weft knitting machine according to claim 4 characterized in that the pawl (42) comprises a collar (421) rotatably arranged on the carriage (24), a hook block (422) connected to the collar (421) and having a tip abutting against the tooth slot of the ratchet bar (41), and a bolt (423) passing through the hook block (422) and threadedly connected to the collar (421), the collar (421) being spaced apart from the ratchet bar (41).
6. A circular weft knitting machine according to claim 1, characterized in that the creel (11) is provided with a digital display screen (54) electrically connected to the controller (53) to receive electrical signals and display pressure values.
7. A circular weft knitting machine according to claim 1, characterized in that the trigger wheel (511) is located on the input side of the timing belt (22) of the power wheel (23).
8. A circular weft knitting machine according to claim 7 characterized in that a tray (231) is coaxially fixed to the bottom side of the power wheel (23), the tray (231) is circular and has a larger diameter than the power wheel (23), a disc (232) is coaxially fixed to the top side of the power wheel (23), a stud (233) penetrates through the disc (232) and is in threaded connection with the disc (232), and the bottom end of the stud (233) abuts against the tray (231).
9. A circular weft knitting machine according to claim 1, characterized in that a cleaning assembly (6) is arranged on the creel (11), the cleaning assembly (6) comprises an air nozzle (61) arranged on the creel (11), an air pipe (62) communicated with the air nozzle (61), and an air supply source (63) arranged on one side of the creel (11) and communicated with the air pipe (62), and an air outlet of the air nozzle (61) is opposite to an inner ring of the synchronous belt (22) distributed with gear teeth.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910410860.5A CN110055672B (en) | 2019-05-16 | 2019-05-16 | Circular weft knitting machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910410860.5A CN110055672B (en) | 2019-05-16 | 2019-05-16 | Circular weft knitting machine |
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| CN110055672A CN110055672A (en) | 2019-07-26 |
| CN110055672B true CN110055672B (en) | 2020-09-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114232195B (en) * | 2021-12-27 | 2023-04-18 | 绍兴市标准化研究院 | Adjustable locking device of computer seamless knitted underwear machine dial free suspension |
| CN114875563B (en) * | 2022-04-28 | 2024-01-26 | 绍兴乙龙科技有限公司 | Gear precision positioning device on two sides of weft knitting machine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3651668A (en) * | 1970-01-09 | 1972-03-28 | David Pernick | Yarn feeding means for knitting machines |
| CH653717A5 (en) * | 1981-08-31 | 1986-01-15 | Tecan Ag | Method for the run-through measurement of textile threads in textile machines and apparatus for carrying it out |
| DE19733264A1 (en) * | 1997-08-01 | 1999-02-04 | Sipra Patent Beteiligung | Thread delivery device and suitable drive wheel |
| DE19733263A1 (en) * | 1997-08-01 | 1999-02-04 | Sipra Patent Beteiligung | Thread delivery device on a textile machine and belt tensioning device therefor |
| CN203128788U (en) * | 2012-12-28 | 2013-08-14 | 泉州标达机械有限公司 | Novel yarn conveying frame regulator |
| CN205275873U (en) * | 2015-12-29 | 2016-06-01 | 浙江港龙织造科技有限公司 | Knitting machine of adjustable type of tension |
| CN206495027U (en) * | 2017-01-18 | 2017-09-15 | 绍兴锦强针纺有限公司 | A kind of belt stretcher of large circle machine |
| CN206495028U (en) * | 2017-01-18 | 2017-09-15 | 绍兴锦强针纺有限公司 | A kind of strainer for large circle machine |
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Address after: 312000 second floor, building 1, north of Zhenyuan Branch Road, Yuecheng District, Shaoxing City, Zhejiang Province Applicant after: Shaoxing Saponin Textile Co.,Ltd. Address before: 312000 Fourth Floor of 3 R&D Workshops, No. 99 Songwan Road, Mashan Town, Yuecheng District, Shaoxing City, Zhejiang Province Applicant before: Shaoxing Saponin Textile Co.,Ltd. |
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