CN116555949A - Air extraction type rotor spinning machine joint mechanism and joint method - Google Patents
Air extraction type rotor spinning machine joint mechanism and joint method Download PDFInfo
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- CN116555949A CN116555949A CN202310616290.1A CN202310616290A CN116555949A CN 116555949 A CN116555949 A CN 116555949A CN 202310616290 A CN202310616290 A CN 202310616290A CN 116555949 A CN116555949 A CN 116555949A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 23
- 238000000605 extraction Methods 0.000 title claims abstract description 8
- 238000000034 method Methods 0.000 title claims description 9
- 238000007383 open-end spinning Methods 0.000 title claims description 4
- 238000003825 pressing Methods 0.000 claims abstract description 98
- 238000004804 winding Methods 0.000 claims abstract description 64
- 238000009987 spinning Methods 0.000 claims abstract description 61
- 230000009471 action Effects 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 19
- 238000010042 air jet spinning Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 229910052573 porcelain Inorganic materials 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 2
- 241001330002 Bambuseae Species 0.000 claims description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 2
- 239000011425 bamboo Substances 0.000 claims description 2
- 230000015271 coagulation Effects 0.000 claims description 2
- 238000005345 coagulation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000009916 joint effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H4/48—Piecing arrangements; Control therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/66—Disintegrating fibre-containing textile articles to obtain fibres for re-use
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
An air extraction type air spinning machine joint mechanism belongs to the technical field of spinning machinery. The yarn winding device comprises a frame, wherein a winding support is arranged on the upper end face of the frame, a bobbin yarn is arranged on the winding support, a semi-automatic mounting beam is arranged on the frame, a winding roller is arranged on the back face of the semi-automatic mounting beam, a yarn sliding guide plate, a yarn breakage sensor and a yarn grabbing arm are arranged on the front face of the semi-automatic mounting beam, a yarn drawing roller and a pressing roller are arranged below the semi-automatic mounting beam, a spinning unit is arranged on the frame, and scissors are arranged on the spinning unit. The accurate action is realized through the matching of the components, so that the single spindle automatic joint is finished when the yarn breaks, the consistency of the quality of the yarn joint is improved, the quality of the bobbin yarn is improved, the awareness of the yarn brand of enterprises is improved, and the market competitiveness is enhanced; meanwhile, the labor intensity of spinning workers is reduced, the operation requirement and the training difficulty of enterprises on spinning work are also reduced, the effects of reducing staff and improving efficiency and controlling the total cost of labor are remarkable, and the enterprises are promoted to realize automatic intelligent management.
Description
Technical Field
The invention belongs to the technical field of spinning machinery, and particularly relates to a piecing mechanism and a piecing method of an air-extracting type air-flow spinning machine.
Background
In the existing domestic air extraction spinning machine, when a single spindle breaks, the single spindle needs to be spliced manually, and the yarn fixed length is affected by the operation proficiency of workers and personal factors during manual splicing, so that the splicing quality is affected; with development, the machine is longer and longer, the spinning count and the speed productivity are continuously improved, the labor intensity of the joint operation of workers is increased, the labor is more and more difficult, and the automatic joint of a single spindle, the joint quality assurance and the labor intensity reduction of the workers become the automatic development direction of the machine.
Disclosure of Invention
The invention mainly solves the technical problems in the prior art and provides a joint mechanism and a joint method of an air-extracting type air-jet spinning machine.
The technical problems of the invention are mainly solved by the following technical proposal: the utility model provides an air extraction type air spinning machine joint mechanism, includes the frame, the up end of frame is equipped with the winding support, be equipped with the section of thick bamboo yarn on the winding support, be equipped with semi-automatic installation roof beam in the frame, the back of semi-automatic installation roof beam is equipped with the winding roller, the front of semi-automatic installation roof beam is equipped with yarn slide guide, broken yarn sensor and grabs the yarn arm, the below of semi-automatic installation roof beam is equipped with drawing roller and impression roller, be equipped with spinning unit in the frame, be equipped with the scissors on the spinning unit.
Preferably, when the diameter of the yarn is changed, the winding support rotates around the rotation shaft so that the yarn always contacts with the winding roller, and the yarn winding is performed by rotating the yarn by friction force generated when the winding roller rotates.
Preferably, the outer surface of the winding roller is provided with straight knurling; the winding roller drives the cone yarn to rotate through reverse rotation or forward rotation, so that the yarn on the cone yarn is unreeled or wound.
Preferably, the winding roller is fixed on the back of the semi-automatic installation beam through a winding fixing seat, and the winding fixing seat is rotationally connected with a lifting rod and drives yarns to lift or fall through reciprocating swing of the lifting rod.
Preferably, when the single spindle is connected, the yarn on the cone yarn is unwound, slides into the positioning opening along the inclined part and the circular arc part of the yarn sliding guide plate, and the position is detected by the yarn breakage sensor.
Preferably, the back of the yarn grabbing arm is provided with a yarn positioning hook, an interface of the rear end of the yarn grabbing arm is sleeved with a yarn grabbing arm negative pressure pipe, the yarn grabbing arm is connected with a yarn grabbing arm motor through a yarn grabbing arm driving belt, and the yarn grabbing arm motor drives the yarn grabbing arm to rotate to move to a bobbin yarn and a scissors position.
Preferably, the yarn drawing roller is mounted on the yarn drawing mounting seat through a yarn drawing roller stepping motor, the pressing roller is mounted at the tail end of the pressing roller support, a yarn guiding and positioning rod is mounted at the head end of the pressing roller support, a yarn guiding rod is mounted on the pressing roller support, the yarn guiding rod is positioned above the pressing roller, a pressing roller supporting shaft is fixedly mounted on the yarn drawing mounting seat and is rotationally connected to the pressing roller support, the pressing roller supporting shaft sleeve is provided with a pressing roller torsion spring, one end of the pressing roller torsion spring is inserted into the yarn drawing mounting seat, the other end of the pressing roller torsion spring is pressed on the pressing roller support, a pressing roller cylinder is hinged to the yarn drawing mounting seat, the output end of the pressing roller cylinder is connected with the pressing roller support, and the pressing roller cylinder and the torsion spring are matched and cooperate to be used for the pressing roller support, so that the pressing roller contacts with or breaks away from the yarn drawing roller.
Preferably, the scissors are fixed on the shell of the spinning unit through a scissors supporting seat, a scissors air cylinder is fixedly arranged on the scissors supporting seat, the opening and the closing of the scissors are controlled through the scissors air cylinder, and a yarn guiding tube of the spinning unit is arranged at the position, close to the scissors, of the scissors supporting seat.
The invention also provides a jointing method of the jointing mechanism of the air-extracting type air-flow spinning machine, which comprises the following steps:
step 1, when yarn breaks, a spinning unit is opened, a spinning cup is stopped, the spinning cup is cleaned, and a pressing roller is separated from a drawing roller under the action of a pressing roller cylinder;
step 2, a control valve on a yarn grabbing arm negative pressure pipe is opened, the yarn grabbing arm is communicated with negative pressure air flow, negative pressure is stably absorbed in the yarn grabbing arm, a lifting rod is in a lifting position under the pushing of an air cylinder, a winding roller reversely rotates to drive a cone yarn to rotate, the head end of the yarn grabbing arm rotates to the cone yarn under the driving of a yarn grabbing arm motor, and yarn heads of yarn on the cone yarn are absorbed;
step 3, when the sensor in the head end of the yarn grabbing arm detects the yarn, the yarn grabbing arm drives the yarn to rotate to the position of the scissors on the spinning unit and stay at the position, the yarn grabbing arm continuously sucks the yarn, the yarn is unwound, the yarn slides into the positioning opening of the yarn sliding guide plate along the yarn sliding guide plate, and the yarn enters the detection position of the yarn breakage sensor; in the yarn unwinding process, the yarn is guided to be led into the notch positioning position of the yarn guiding positioning rod on the pressing roller support, the yarn is positioned between the yarn breaking sensor porcelain nozzle and the notch positioning position of the yarn guiding positioning rod, the yarn breaking sensor sends out a signal to enable the yarn grabbing arm to rotate towards the bobbin yarn direction again under the driving of the yarn grabbing arm motor, and in the yarn grabbing arm rotating process, the yarn positioning hook on the back of the yarn grabbing arm guides the yarn into the positioning groove of the yarn grabbing arm;
step 4, the yarn grabbing arm rotates towards the spinning unit under the drive of the yarn grabbing arm motor, the yarn positioning hook pushes the yarn to slide between the yarn drawing roller and the pressing roller along the yarn guide rod, then the pressing roller cylinder is powered off, the pressing roller is pressed towards the yarn drawing roller under the pressure of the pressing roller torsion spring, the pressing roller presses the yarn drawing roller to hold the yarn, the winding roller stops driving the bobbin yarn to rotate for unwinding the yarn, the yarn grabbing arm drives the yarn positioning hook to push the yarn to rotate to a scissors position of the spinning unit, the scissors cylinder pushes the scissors to cut off the yarn in a closing mode, yarn heads are sucked into a yarn guiding tube of the spinning unit through negative pressure, and meanwhile, the scissors cylinder is retracted to enable the scissors to be opened and reset;
step 5, the winding roller and the yarn drawing roller simultaneously drive the yarns to unwind, so that the yarns are unwound to reach the length set when the yarns are connected; the yarn drawing roller is quickly reversed, so that yarn heads of yarns fall into the condensing groove of the rotating cup to twist, forward rotation is quickly started, meanwhile, the winding roller also drives the cone yarn to wind, and the lifting rod is retracted through the air cylinder to drive the yarns to fall, so that the yarns slide into the transverse moving nozzle to perform transmission movement, normal spinning of single spindle is realized, and joint action is completed.
The invention has the beneficial effects that: according to the invention, accurate action is realized through the matching of the components, so that the single spindle automatic joint is completed when the yarn breaks, the consistency of the quality of the yarn joint is improved, the quality of the cone yarn is improved, the awareness of the yarn brand of enterprises is improved, and the market competitiveness is enhanced; meanwhile, the labor intensity of spinning workers is reduced, the operation requirement and the training difficulty of enterprises on spinning work are also reduced, the effects of reducing staff and improving efficiency and controlling the total cost of labor are remarkable, and the enterprises are promoted to realize automatic intelligent management.
Drawings
FIG. 1 is a schematic view of a construction of the present invention;
FIG. 2 is a schematic view of a construction of a winding roller of the present invention;
FIG. 3 is a schematic view of a yarn slide guide of the present invention;
FIG. 4 is a schematic view of a structure of the yarn grasping arm of the present invention;
FIG. 5 is a schematic view showing a connection structure of the draw roll and the pressure roll of the present invention;
fig. 6 is a schematic view of a connection structure of the scissors and the scissors cylinder of the present invention.
In the figure: 1. a frame; 2. a winding support; 3. a cone yarn; 4. a yarn; 5. a winding roller; 6. a lifting rod; 7. winding the fixing seat; 8. semi-automatic beam installation; 9. a yarn slide guide plate; 10. a yarn breakage sensor; 11. a yarn grabbing arm; 12. a yarn positioning hook; 13. a yarn grabbing arm motor; 14. a yarn grabbing arm driving belt; 15. a yarn grabbing arm negative pressure tube; 16. a yarn grabbing arm fixing seat; 17. a draw roll; 18. a pressing roller; 19. a pressing roller support; 20. yarn guiding and positioning rod; 21. a pressure roller torsion spring; 22. a pressure roller cylinder; 23. a yarn guiding rod; 24. a yarn drawing installation seat; 25. a spinning unit; 26. a spinning unit draws a yarn tube; 27. a pair of scissors; 28. a scissors cylinder; 29. a scissors support; 30. a spring; 31. a rotation shaft; 32. a step motor of the drawing roll; 33. a pressing roller supporting shaft; 34. an inclined portion; 35. an arc part; 36. and positioning the opening.
Detailed Description
The technical scheme of the invention is further specifically described below through examples and with reference to the accompanying drawings.
Examples: the utility model provides an air-extracting type air-jet spinning machine joint mechanism, as shown in fig. 1-6, includes frame 1, winding support 2, bobbin yarn 3, semi-automatic installation roof beam 8, winding roller 5, yarn slide guide 9, broken yarn sensor 10, grab yarn arm 11, take-up roll 17, impression roller 18, spinning unit 25 and scissors 27, frame 1 is the support main part of whole mechanism, winding support 2 is installed at the up end of frame 1 through fixed angle bar, bobbin yarn 3 centre gripping is between two support arms of winding support 2, semi-automatic installation roof beam 8 passes through the bearing support seat to be fixed on frame 1, winding roller 5 passes through winding fixing base 7 to be installed at the back of semi-automatic installation roof beam 8, yarn slide guide 9 and broken yarn sensor 10 are fixed in the place ahead of semi-automatic installation roof beam 8, grab yarn arm 11 passes through grab yarn arm fixing base 16 to be installed at the front of semi-automatic installation roof beam 8, take-up roll 17 and impression roller 18 pass through take-up mount 24 to be installed at the below of semi-automatic installation roof beam 8, the support unit 25 passes through take-up mount seat 24 to be installed at the scissors unit 25 on frame 25 through support unit 29.
The winding bracket 2 is arranged on the upper end face of the frame 1 through a fixed angle iron, and the two supporting arms of the winding bracket 2 are pressed by the spring 30 to enable the cone yarn 3 to be stably clamped between the two supporting arms. When the diameter of the cone yarn 3 is changed, the winding bracket 2 rotates around the rotating shaft 31, so that the cone yarn 3 is always contacted with the winding roller 5, and the cone yarn 3 is driven to rotate by the friction force generated when the winding roller 5 rotates to wind the yarn 4.
The winding roller 5 is driven by an outer rotor motor through a single spindle, and straight knurling is arranged on the outer surface of the winding roller 5 so as to increase the rotation friction force between the winding roller and the bobbin yarn 3; the winding roller 5 drives the cone yarn 3 to rotate through reverse rotation or forward rotation, so that the yarn 4 on the cone yarn 3 is unreeled or wound, specifically:
when a single spindle is connected, the winding roller 5 reversely rotates to drive the cone yarn 3 to rotate, so that the yarn 4 on the cone yarn 3 is unwound; during normal spinning, the winding roller 5 rotates positively to drive the cone yarn 3 to rotate, so that the yarn 4 on the cone yarn 3 is wound.
The winding fixing seat 7 is rotationally connected with the lifting rod 6, the lifting rod 6 is driven by an air cylinder (or other linear operation executing elements), so that the lifting rod 6 swings reciprocally around the connection part of the lifting rod 6 and the winding fixing seat 7, and the yarn 4 is driven to rise or fall through the lifting rod 6, specifically: when a single spindle is connected, the lifting rod 6 is lifted up to separate the yarn 4 from the transverse moving nozzle; after the splicing is completed, the lifting rod 6 is lowered to let the yarn 4 enter the traverse mouth, so that the yarn 4 is wound on the bobbin yarn 3.
The yarn slide guide plate 9 and the yarn breakage sensor 10 are fixed on the semi-automatic mounting beam 8, and the yarn slide guide plate 9 comprises an inclined part 34 and an arc part 35 for guiding the yarn 4; at the time of single spindle joining, the yarn 4 on the bobbin yarn 3 is unwound, slides into the positioning opening 36 of the yarn slide guide 9 along the inclined portion 34 and the circular arc portion 35, and enters the detection position of the yarn breakage sensor 10.
The yarn grabbing arm 11 is connected with the yarn grabbing arm motor 13 through a yarn grabbing arm driving belt 14 (or other rotary driving structures), a yarn locating hook 12 is installed in a locating groove on the back surface of the yarn grabbing arm 11, a yarn grabbing arm negative pressure pipe 15 is sleeved at an interface of the rear end of the yarn grabbing arm 11 and fixed on a yarn grabbing arm fixing seat 16, and the yarn grabbing arm 11, the yarn grabbing arm driving belt 14, the yarn grabbing arm motor 13, the yarn locating hook 12 and the yarn grabbing arm negative pressure pipe 15 are combined to form a yarn grabbing arm 11 mechanism, and the whole yarn grabbing arm 11 mechanism and the yarn grabbing arm fixing seat 16 are integrally installed on the semiautomatic installation beam 8 after being connected together. When a single spindle is connected, a control valve on the yarn grabbing arm negative pressure pipe 15 is opened to provide yarn sucking negative pressure for the yarn grabbing arm 11, and the yarn grabbing arm motor 13 drives the yarn grabbing arm 11 to rotate to the positions of the cone yarn 3 and the scissors 27 through the yarn grabbing arm driving belt 14.
The draw roll 17 is mounted on the draw mounting seat 24 through a draw roll stepping motor 32, the pressing roll 18 is mounted at the tail end of the pressing roll support 19, a yarn guiding and positioning rod 20 is mounted at the head end of the pressing roll support 19, a yarn guiding rod 23 is mounted on the pressing roll support 19, the yarn guiding rod 23 is positioned above the pressing roll 18, a pressing roll supporting shaft 33 is fixedly mounted on the draw mounting seat 24, the pressing roll supporting shaft 33 is rotationally connected with the pressing roll support 19, namely, the pressing roll support 19 can rotate around the pressing roll supporting shaft 33, the pressing roll supporting shaft 33 is sleeved with a pressing roll torsion spring 21, one end of the pressing roll torsion spring 21 is inserted into the draw mounting seat 24, the other end of the pressing roll torsion spring 21 is pressed on the pressing roll support 19, a pressing roll cylinder 22 is hinged on the drawing mounting seat 24, the output end of the pressing roll cylinder 22 is connected with the pressing roll support 19, and the pressing roll cylinder 22 is matched with the pressing roll support 19 for enabling the pressing roll 18 to contact with or separate from the draw roll 17.
The yarn drawing roller 17, the pressing roller 18, the yarn guiding and positioning rod 20, the yarn guiding rod 23, the pressing roller supporting shaft 33, the pressing roller bracket 19, the pressing roller torsion spring 21 and the pressing roller cylinder 22 are combined to form a yarn drawing mechanism, and the whole yarn drawing mechanism is arranged below the semiautomatic mounting beam 8 through the yarn drawing mounting seat 24. When the single spindle is connected, the output end of the pressing roller cylinder 22 stretches out to lift the pressing roller 18, the yarn 4 is guided to the notch positioning position of the yarn guiding positioning rod 20 through the yarn grabbing arm 11 and enters between the pressing roller 18 and the drawing roller 17 under the guiding of the yarn guiding rod 23, then the pressing roller cylinder 22 is powered off, the pressing roller 18 is pressed to the drawing roller 17 under the pressure of the pressing roller torsion spring 21, and the yarn 4 is pressed and held through the pressing roller 18 and the drawing roller 17.
The scissors 27 are fixed on the casing of the spinning unit 25 through a scissors supporting seat 29, a scissors cylinder 28 is fixedly installed on the scissors supporting seat 29, and the opening and closing of the scissors 27 are controlled through the scissors cylinder 28, specifically: the scissors 27 comprise a movable cutter body and a fixed cutter body which are mutually hinged, the output end of the scissors cylinder 28 is hinged with the movable cutter body of the scissors 27, the fixed cutter body of the scissors 27 is fixed on the scissors supporting seat 29, and the yarns 4 are cut by closing the movable cutter body and the fixed cutter body of the scissors 27; the scissors supporting seat 29 is provided with a yarn guiding tube 26 of the spinning unit near the scissors 27. When a single spindle is connected, the yarn 4 is positioned to the position of the scissors 27 through the yarn positioning hook 12, the scissors 27 are driven by the scissors cylinder 28 to cut the yarn 4 in a closing mode, the yarn 4 is sucked into the yarn drawing tube 26 of the spinning unit through negative pressure, and meanwhile the scissors 27 are driven by the scissors cylinder 28 to be opened.
The invention also provides a jointing method of the jointing mechanism of the air-extracting type air-flow spinning machine, which comprises the following steps:
step 1, when the yarn 4 breaks, the spinning unit 25 is opened, the spinning cup is stopped, the spinning cup is cleaned, and meanwhile, the pressing roller 18 is separated from the drawing roller 17 under the action of the pressing roller cylinder 22; specifically, the spinning unit 25 is opened by pushing the air cylinder, the rotor is braked and stopped under the action of the brake structure, the fibers in the rotor are cleaned by negative pressure air flow (or the spinning unit 25 is opened and closed by the air cylinder), so that residual fibers are not remained in the rotor, the spinning unit 25 is closed by retracting the air cylinder, the spinning unit 25 is positioned at a working joint position and is kept at the working joint position, and meanwhile, the rotor is also separated from the brake block and is driven to the working rotating speed;
step 2, a control valve on a yarn grabbing arm negative pressure pipe 15 is opened, a yarn grabbing arm 11 is communicated with negative pressure air flow, negative pressure is stably absorbed in the yarn grabbing arm 11, a lifting rod 6 is in a lifting position under the pushing of an air cylinder, a winding roller 5 reversely rotates to drive a cone yarn 3 to rotate, the head end of the yarn grabbing arm 11 is driven by a yarn grabbing arm motor 13 to rotate to the cone yarn 3, and yarn heads of yarns 4 on the cone yarn 3 are absorbed;
step 3, when the sensor in the head end of the yarn grabbing arm 11 detects the yarn 4, the yarn grabbing arm 11 drives the yarn 4 to rotate to the position of the scissors 27 on the spinning unit together and stay at the position, the yarn grabbing arm 11 continuously sucks the yarn 4, the yarn 4 is unwound, the yarn 4 slides into the positioning opening 36 along the yarn sliding guide plate 9 and enters the detection position of the yarn breakage sensor 10; during unwinding of the yarn 4, the yarn 4 is guided and guided into the notch positioning position of the yarn guiding and positioning rod 20 on the pressing roller support 19, at the moment, the yarn 4 is positioned between the porcelain nozzle of the yarn breakage sensor 10 and the notch positioning position of the yarn guiding and positioning rod 20, the yarn breakage sensor 10 sends out a signal to enable the yarn grabbing arm 11 to rotate towards the bobbin yarn 3 again under the driving of the yarn grabbing arm motor 13, and during the rotation of the yarn grabbing arm 11, the yarn positioning hook 12 on the back surface of the yarn grabbing arm 11 guides the yarn 4 into the positioning groove of the yarn 4;
step 4, the yarn grabbing arm 11 rotates towards the spinning unit 25 under the driving of the yarn grabbing arm motor 13, the yarn positioning hook 12 pushes the yarn 4 to slide between the drawing roller 17 and the pressing roller 18 along the yarn guiding rod 23, then the pressing roller cylinder 22 loses electricity, the pressing roller 18 is pressed towards the drawing roller 17 under the pressure of the pressing roller torsion spring 21, the drawing roller 17 is pressed by the pressing roller 18 to hold the yarn 4, at the moment, the winding roller 5 stops driving the bobbin yarn 3 to rotate to unwind the yarn 4, the yarn grabbing arm 11 drives the yarn positioning hook 12 to push the yarn 4 to rotate to the scissors 27 of the spinning unit 25, the scissors cylinder 28 pushes the scissors 27 to cut the yarn 4 in a closing mode, the yarn 4 ends are sucked into the yarn guiding tube 26 of the spinning unit through negative pressure, and at the same time, the scissors cylinder 28 is retracted to enable the scissors 27 to open and reset;
step 5, the winding roller 5 and the drawing roller 17 simultaneously drive the yarn 4 to unwind, so that the yarn 4 is unwound to reach the length set when the joint is formed; during unwinding of the yarn 4, surplus yarn 4 is sucked into the auxiliary suction tube and the appropriate yarn 4 is stored between the winding roller 5 and the draw-off roller 17; the yarn drawing roller 17 is quickly reversed, so that the yarn heads of the yarns 4 fall into the revolving cup coagulation groove to twist, the forward rotation is quickly started, meanwhile, the winding roller 5 also drives the cone yarn 3 to wind, the lifting rod 6 is retracted through the air cylinder to drive the yarn drawing roller to fall, the yarns 4 slide into the transverse moving nozzle to perform transmission movement, and the normal spinning of single spindle and the joint action are realized.
Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the invention is not limited to the above-described embodiments, but many variations are possible. Any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention should be considered to be within the scope of the present invention.
Claims (9)
1. The utility model provides an air extraction type air spinning machine joint mechanism, includes frame (1), its characterized in that, the up end of frame (1) is equipped with winding support (2), be equipped with section of thick bamboo yarn (3) on winding support (2), be equipped with semi-automatic installation roof beam (8) on frame (1), the back of semi-automatic installation roof beam (8) is equipped with winding roller (5), the front of semi-automatic installation roof beam (8) is equipped with yarn slide guide (9), broken yarn sensor (10) and grabs yarn arm (11), the below of semi-automatic installation roof beam (8) is equipped with drawing roller (17) and impression roller (18), be equipped with spinning unit (25) on frame (1), be equipped with scissors (27) on spinning unit (25).
2. An air-extracting type air-jet spinning machine piecing mechanism as claimed in claim 1, wherein the winding bracket (2) rotates around the rotation axis (31) to make the bobbin yarn (3) always contact with the winding roller (5) when the diameter of the bobbin yarn (3) changes, and the winding bracket rotates the bobbin yarn (3) to wind the yarn (4) by friction force generated when the winding roller (5) rotates.
3. An air-extracting type rotor spinning machine piecing mechanism according to claim 1, characterized in that the outer surface of the winding roller (5) is provided with straight knurling; the winding roller (5) drives the cone yarn (3) to rotate through reverse or forward rotation, so that the yarn (4) on the cone yarn (3) is unreeled or wound.
4. The air extraction type air spinning machine joint mechanism according to claim 1, wherein the winding roller (5) is fixed on the back surface of the semi-automatic installation beam (8) through a winding fixing seat (7), a lifting rod (6) is rotatably connected to the winding fixing seat (7), and the yarn (4) is driven to lift or fall through reciprocating swing of the lifting rod (6).
5. The piecing mechanism of an air-extracting type air-jet spinning machine according to claim 1, wherein the yarn (4) on the bobbin yarn (3) is unwound, slides into the positioning opening (36) along the inclined portion (34) and the circular arc portion (35) of the yarn sliding guide plate (9) and the position is detected by the yarn breakage sensor (10) at the time of piecing of a single spindle.
6. The air extraction type air spinning machine joint mechanism according to claim 1, wherein a yarn positioning hook (12) is arranged on the back surface of the yarn grabbing arm (11), a yarn grabbing arm negative pressure pipe (15) is sleeved at the joint of the rear end of the yarn grabbing arm (11), the yarn grabbing arm (11) is connected with a yarn grabbing arm motor (13) through a yarn grabbing arm driving belt (14), and the yarn grabbing arm motor (13) drives the yarn grabbing arm (11) to rotate to the positions of a cone yarn (3) and a scissors (27).
7. The air-drawn type air-jet spinning machine joint mechanism according to claim 1, wherein the draw-off roller (17) is mounted on the draw-off mounting seat (24) through a draw-off roller stepping motor (32), the pressing roller (18) is mounted at the tail end of the pressing roller support (19), a yarn guiding positioning rod (20) is mounted at the head end of the pressing roller support (19), a yarn guiding rod (23) is mounted on the pressing roller support (19), the yarn guiding rod (23) is positioned above the pressing roller (18), a pressing roller supporting shaft (33) is fixedly mounted on the draw-off mounting seat (24), the pressing roller supporting shaft (33) is rotatably connected to the pressing roller support (19), a torsion spring (21) is sleeved on the pressing roller supporting shaft (33), one end of the pressing roller torsion spring (21) is inserted into the draw-off mounting seat (24), the other end of the pressing roller torsion spring (21) is pressed on the pressing roller support (19), a pressing roller (22) is hinged on the drawing-off mounting seat (24), the output end of the pressing roller (22) is connected with the pressing roller support (19), and the pressing roller support (22) is in contact with the pressing roller (18) or the pressing roller (17) to make the pressing roller (17) separate from the draw-off roller.
8. The air-extracting type air-jet spinning machine joint mechanism according to claim 1, wherein the scissors (27) are fixed on the shell of the spinning unit (25) through a scissors supporting seat (29), a scissors cylinder (28) is fixedly arranged on the scissors supporting seat (29), the opening and closing of the scissors (27) are controlled through the scissors cylinder (28), and a spinning unit yarn guiding tube (26) is arranged at the position, close to the scissors (27), of the scissors supporting seat (29).
9. A piecing method of a piecing mechanism of an air-extracting type rotor spinning machine as claimed in any one of claims 1 to 8, comprising the steps of:
step 1, when the yarn (4) breaks, a spinning unit (25) is opened, a spinning cup is stopped, the spinning cup is cleaned, and meanwhile, a pressing roller (18) is separated from a drawing roller (17) under the action of a pressing roller cylinder (22);
step 2, a control valve on a yarn grabbing arm negative pressure pipe (15) is opened, a yarn grabbing arm (11) is communicated with negative pressure air flow, negative pressure is stably absorbed in the yarn grabbing arm (11), a lifting rod (6) is in a lifting position under the pushing of an air cylinder, a winding roller (5) reversely rotates to drive a cone yarn (3) to rotate, the head end of the yarn grabbing arm (11) is driven by a yarn grabbing arm motor (13) to rotate to the cone yarn (3), and yarn heads of yarns (4) on the cone yarn (3) are absorbed;
step 3, when a sensor in the head end of the yarn grabbing arm (11) detects the yarn (4), the yarn grabbing arm (11) drives the yarn (4) to rotate to the position of a scissors (27) on the spinning unit and stay at the position, the yarn grabbing arm (11) continuously sucks the yarn (4) to unwind the yarn (4), and the yarn (4) slides into a positioning opening (36) along a yarn sliding guide plate (9) and enters a detection position of a yarn breaking sensor (10); during unwinding of the yarn (4), the yarn is guided and guided into a notch positioning position by a yarn guiding positioning rod (20) on a pressing roller bracket (19), the yarn (4) is positioned between a yarn breaking sensor (10) porcelain nozzle and the notch positioning position of the yarn guiding positioning rod (20), the yarn breaking sensor (10) sends out a signal to enable a yarn grabbing arm (11) to rotate towards a bobbin yarn (3) again under the driving of a yarn grabbing arm motor (13), and during the rotation of the yarn grabbing arm (11), a yarn positioning hook (12) on the back of the yarn grabbing arm (11) guides the yarn (4) into a positioning groove of the yarn;
step 4, the yarn grabbing arm (11) rotates towards the spinning unit (25) under the driving of the yarn grabbing arm motor (13), the yarn locating hook (12) pushes the yarn (4) to slide between the yarn drawing roller (17) and the pressing roller (18) along the yarn guiding rod (23), then the pressing roller cylinder (22) is powered off, the pressing roller (18) is pressed to the yarn drawing roller (17) under the pressure of the pressing roller torsion spring (21), the yarn drawing roller (17) is pressed by the pressing roller (18), at the moment, the winding roller (5) stops driving the bobbin yarn (3) to rotate for unwinding the yarn (4), the yarn grabbing arm (11) drives the yarn locating hook (12) to push the yarn (4) to rotate to the scissors (27) of the spinning unit (25), the scissors cylinder (28) pushes the scissors (27) to cut the yarn (4) in a closing mode, the yarn head of the yarn (4) is sucked into the yarn drawing tube (26) through the negative pressure spinning unit, and at the same time, the scissors cylinder (28) is retracted to enable the scissors (27) to open and reset;
step 5, the winding roller (5) and the drawing roller (17) simultaneously drive the yarn (4) to unwind, so that the yarn (4) is unwound to reach the length set when the joint is formed; the yarn drawing roller (17) is quickly reversed, so that yarn heads of the yarns (4) fall into the rotary cup coagulation groove to twist, forward rotation is quickly started, meanwhile, the winding roller (5) also drives the bobbin yarn (3) to wind, the lifting rod (6) is retracted through the air cylinder to drive the lifting rod to fall, the yarns (4) slide into the transverse moving nozzle to perform transmission movement, normal spinning of a single spindle is realized, and joint movement is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310616290.1A CN116555949A (en) | 2023-05-29 | 2023-05-29 | Air extraction type rotor spinning machine joint mechanism and joint method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310616290.1A CN116555949A (en) | 2023-05-29 | 2023-05-29 | Air extraction type rotor spinning machine joint mechanism and joint method |
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| CN116555949A true CN116555949A (en) | 2023-08-08 |
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| CN101328628A (en) * | 2007-06-19 | 2008-12-24 | 浙江日发纺织机械有限公司 | High speed semiautomatic rotor spinning machine |
| CN202865449U (en) * | 2012-09-18 | 2013-04-10 | 江阴艾泰克机械制造有限公司 | Rotor spinner semi-automatic joint device |
| EP3909896A1 (en) * | 2020-05-15 | 2021-11-17 | Maschinenfabrik Rieter AG | Spinning device and method for piecing |
| CN115928272A (en) * | 2022-12-07 | 2023-04-07 | 经纬智能纺织机械有限公司 | Single-spindle automatic piecing device of rotor spinning machine |
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2023
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3695017A (en) * | 1969-03-15 | 1972-10-03 | Daiwa Spinning Co Ltd | Automatic yarn piecing apparatus for spindleless spinning machine |
| CN1159492A (en) * | 1995-10-16 | 1997-09-17 | 里特埃利特斯公司 | Method of and device for, spinning-in yarn on open-end spinning machine |
| JPH09157962A (en) * | 1995-12-11 | 1997-06-17 | Toyota Autom Loom Works Ltd | Method for ending in doffing of spinning frame and ending apparatus |
| CN101328628A (en) * | 2007-06-19 | 2008-12-24 | 浙江日发纺织机械有限公司 | High speed semiautomatic rotor spinning machine |
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Application publication date: 20230808 |