CN105883498B - The yarn winding device of automatic upper yarn - Google Patents
The yarn winding device of automatic upper yarn Download PDFInfo
- Publication number
- CN105883498B CN105883498B CN201610352236.0A CN201610352236A CN105883498B CN 105883498 B CN105883498 B CN 105883498B CN 201610352236 A CN201610352236 A CN 201610352236A CN 105883498 B CN105883498 B CN 105883498B
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- China
- Prior art keywords
- yarn
- driving device
- clamping sheet
- bar
- ryce
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
- B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
- B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
- B65H63/028—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
- B65H54/28—Traversing devices; Package-shaping arrangements
- B65H54/30—Traversing devices; Package-shaping arrangements with thread guides reciprocating or oscillating with fixed stroke
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
- B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
- B65H67/0405—Arrangements for removing completed take-up packages or for loading an empty core
- B65H67/0411—Arrangements for removing completed take-up packages or for loading an empty core for removing completed take-up packages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
- B65H75/20—Skeleton construction, e.g. formed of wire
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
- B65H75/24—Constructional details adjustable in configuration, e.g. expansible
- B65H75/242—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages
- B65H75/245—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages by deformation of an elastic or flexible material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
- B65H75/28—Arrangements for positively securing ends of material
- B65H75/285—Holding devices to prevent the wound material from unwinding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
- B65H75/32—Arrangements to facilitate severing of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/50—Storage means for webs, tapes, or filamentary material
Abstract
The present invention relates to a kind of yarn winding devices of automatic upper yarn comprising board, yarn interwine device, yarn clamping mechanism, Jian Sha mechanism, Shang Sha mechanism and control mechanism.The yarn winding device of the automatic upper yarn can clamp yarn by Shang Sha mechanism, for the cutting of Jian Sha mechanism, Jian Sha mechanism cuts the new yarn and thread head generated after yarn and can be clamped by Shang Sha mechanism, and it can be drawn by Shang Sha mechanism to yarn clamping mechanism, the yarn clamping sheet of yarn clamping mechanism can be driven to open by yarn clamping sheet driving device and be passed through for new yarn and thread head, it can cooperate with ryce after yarn clamping sheet resets and clamp new yarn and thread head, after unclamping new yarn and thread head to Shang Sha mechanism, ryce driving device can then drive ryce rotation to carry out around yarn.The yarn winding device of the automatic upper yarn only needs for the first time manually upper yarn, it is subsequent can from yarn source constantly around the yarn for taking different batches, it is subsequent around yarn process without manually upper yarn, it is high-efficient.
Description
Technical field
The present invention relates to field of textile machinery, more particularly, to a kind of yarn winding device of automatic upper yarn.
Background technique
In textile industry, often need to carry out coiling in batches to the yarn of yarn source (such as cheese).It is traditional to yarn
In batches in winding process, when generalling use manually upper yarn, i.e. each coiling, need manually to cut yarn, and manually by yarn and thread head
Traction to ryce carries out new lot coiling.Manually upper yarn wasting manpower and material resources, and it is unfavorable for the raising of production efficiency.
Summary of the invention
Based on this, it is necessary to provide a kind of yarn winding device of automatic upper yarn for being conducive to improve production efficiency.
A kind of yarn winding device of automatic upper yarn, comprising:
Board；
Yarn interwine device, including ryce and means of a spool drive, the means of a spool drive are located on the board, the yarn
Frame connect with the shaft of the means of a spool drive and can be driven by the means of a spool drive and rotated relative to the board；
Yarn clamping mechanism, including yarn clamping sheet and yarn clamping sheet driving device, the yarn clamping sheet is hinged with the ryce and is resetting
The yarn clamping sheet and the ryce cooperate to clamp yarn and thread head under state, and the yarn clamping sheet driving device is located on the board,
The yarn clamping sheet driving device can push the yarn clamping sheet to rotate relative to the ryce and be passed through with opening for yarn and thread head；
Jian Sha mechanism is located on the board, for cutting yarn；
Shang Sha mechanism is located on the board, is cut for clamping yarn for the Jian Sha mechanism, and for after cutting
The new yarn and thread head generated draws at the yarn clamping mechanism and clamps for the yarn clamping sheet；And
Control mechanism, with the means of a spool drive, the yarn clamping sheet driving device, the Jian Sha mechanism and the upper yarn
Mechanism is electrically connected, and the control mechanism is for controlling means of a spool drive rotation or shutting down, and described in the control
Means of a spool drive controls the yarn clamping sheet driving device, the Jian Sha mechanism and Shang Sha mechanism interoperation after shutting down.
The yarn winding device of the automatic upper yarn further includes storage type Yarn feeder in one of the embodiments,；The storage
Formula Yarn feeder is located on the board, and the yarn drawn from yarn source is laggard by storage type Yarn feeder storage predetermined amount
Enter the yarn interwine device.
The yarn winding device of the automatic upper yarn further includes broken yarn detection mechanism in one of the embodiments,；The broken yarn
Testing agency is located on the board and is electrically connected with the control mechanism.
The yarn winding device of the automatic upper yarn further includes traversing yarn-laying component in one of the embodiments,；The traversing
Pendulum yarn component includes cam, cam driving gear and pendulum yarn bar；
The cam driving gear is located on the board and connect with the cam to drive the cam to rotate, described
The one end and the cam drive for putting yarn bar cooperate, and the other end is equipped with cable-through hole；
The control mechanism and the cam driving gear are electrically connected to control the cam driving gear and act；
The yarn enters the yarn interwine device after passing through the cable-through hole for putting yarn bar.
The ryce includes wheel shaft, multiple spokes and multiple around yarn bar in one of the embodiments,；The wheel shaft and institute
State the shaft connection of means of a spool drive；Multiple spokes around the wheel shaft be arranged and the spoke both ends respectively with institute
State wheel shaft and described around the connection of yarn bar；
The means of a spool drive rotation drives the wheel shaft rotation, and then described rotate around yarn bar is driven to be wound on yarn
It is described on yarn bar.
In one of the embodiments, the yarn clamping sheet at least one, and the yarn clamping sheet with it is described hinged around yarn bar,
The yarn clamping sheet cooperates with described around yarn bar to clamp yarn and thread head in the reset state.
In one of the embodiments, in the reset state, one end of the yarn clamping sheet outwardly protrudes described around yarn bar, institute
The output shaft for stating yarn clamping sheet driving device, which can contradict the end, rotates yarn clamping sheet around yarn bar relative to described, to be unfolded into for yarn
The gap that line passes through.
The Shang Sha mechanism includes upper yarn bar, upper yarn rod driving device, supporting plate and yarn clipping electricity in one of the embodiments,
Magnet；
The upper yarn driving device is located on the board and is electrically connected with the control mechanism, the one of the upper yarn bar
End connect with the upper yarn driving device and can be by the upper yarn driving device driving rotation, and the other end of the upper yarn bar is solid
Surely it is connected with the supporting plate, the yarn clipping electromagnet is located on the supporting plate；
The control mechanism and the yarn clipping electromagnet are electrically connected to control the yarn clipping electromagnetism by being powered or powering off
Yarn is lived or unclamped to iron clamp；
The Jian Sha mechanism is fixed in the supporting plate of the Shang Sha mechanism, and the Jian Sha mechanism is clamped in the yarn clipping electromagnet
Position and the entering and cut yarn between yarn position of the ryce after, the upper yarn driving device will be accompanied by the upper yarn bar
The supporting plate of yarn is turned to close to being hinged with the described around yarn bar of the yarn clamping sheet, and makes yarn from the yarn clamping sheet after opening
It is passed through between yarn bar with described, so as to clamp new yarn and thread head around the cooperation of yarn bar with described after yarn clamping sheet reset.
The Jian Sha mechanism includes scissors and scissors driving device in one of the embodiments,；The scissors driving dress
Be set on the supporting plate, the scissors connect with the scissors driving device and can be driven from the scissors driving device to
Yarn movement is to cut yarn.
The yarn winding device of above-mentioned automatic upper yarn can clamp yarn by Shang Sha mechanism, for the cutting of Jian Sha mechanism, cut yarn machine
Structure is cut the new yarn and thread head generated after yarn and can be clamped by Shang Sha mechanism, and can be drawn by Shang Sha mechanism to yarn clamping mechanism
Place, the yarn clamping sheet of yarn clamping mechanism can be driven to open by yarn clamping sheet driving device to be passed through for new yarn and thread head, after yarn clamping sheet resets
It can cooperate with ryce and clamp new yarn and thread head, so that ryce driving device can be then after new yarn and thread head unclamps in Shang Sha mechanism
Ryce rotation is driven to carry out around yarn.Yarn winding device of the automatic upper yarn only needs for the first time manually upper yarn, it is subsequent can be from yarn
Line source (such as cheese) is subsequent to be not necessarily to manually upper yarn around yarn process constantly around the yarn for taking different batches, high-efficient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the yarn sampler of an embodiment；
Fig. 2 is the part-structure enlarged diagram of yarn sampler shown in Fig. 1；
Fig. 3 is the top view of yarn sampler shown in Fig. 1；
Fig. 4 is the partial sectional view of yarn sampler shown in Fig. 1.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give presently preferred embodiments of the present invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more thorough
Comprehensively.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein "and/or" includes one or more phases
Any and all combinations of the listed item of pass.
As shown in Figure 1, the yarn sampler 10 of the present embodiment includes board 11, electronic scale 12, governing mechanism of tension 13, breaks
Yarn, yarn interwine device 16, yarn clamping mechanism 17, Shang Sha mechanism 18, Jian Sha mechanism 19, unloads at traversing yarn-laying component 15 in yarn testing agency 14
Mechanism 20, twist yarn mechanism 21, receiving mechanism 22 and control mechanism.
In the present embodiment, board 11 includes support frame 111, laterallys secure plate 112, workbench 113 and fixing seat 114.
Plate 112 is laterallyd secure to be located at the side of support frame 111 and be fixedly connected with support frame 111.Workbench 113 is located at support frame 111
On.Fixing seat 114 is located on workbench 113.The side wall of fixing seat 114 and the table top of workbench 113 are vertically arranged.It is understood that
In other embodiments, the structure of the board 11 is not limited to described above.
The pallet of electronic scale 12 is for placing cheese 90, and the weights of real-time monitoring cheese 90.Electronic scale 12
It is preferred that the higher electronic scale of precision, if precision is 1mg.Electronic scale 12 has data-interface, can be by the weight for the object weighed
Amount is real-time transmitted to the control mechanisms such as computer or programmable logic controller (PLC) (PLC).The preferably use of electronic scale 12 subtracts poor method and obtains
The weight change of cheese 90 out.In the present embodiment, electronic scale 12 is equipped with shield 121.Shield 121 can be windproof, dust-proof,
So as to avoid extraneous factor to impact the weighing of electronic scale 12 as far as possible.
Governing mechanism of tension 13 is used to adjust the tension of yarn 91, so that it is more acurrate reliable so that electronic scale 12 is weighed.At this
In embodiment, governing mechanism of tension 13 includes tension bracket 131, tension bracket driving device 132 and storage type Yarn feeder 133.
Tension bracket 131 has cable-through hole.Cable-through hole preferably at least there are two.When yarn 91 is passed through from two cable-through holes
Afterwards, it can be folded to upwards, i.e., bending changes travel path and enters in next mechanism.It is understood that in other embodiments, one
Cable-through hole also can achieve the effect.
Tension bracket driving device 132, which is located at, to be laterallyd secure on plate 112 and is connect with tension bracket 131 to drive tension bracket 131
Rotation.In the present embodiment, tension bracket driving device 132 is rotary cylinder, and back rotation can be carried out within the scope of certain angle.It can manage
The driving devices such as solution, the tension bracket driving device 132 or motor.
Storage type Yarn feeder 133, which is located at, to be laterallyd secure on plate 112.General storage type can be used in storage type Yarn feeder 133
Yarn feeder enables yarn 91 equably to wind for keeping in the yarn 91 of a fixing turn to control the constant tension of yarn discharging end
In yarn interwine device 16.
Into storage type Yarn feeder 133 after the cable-through hole that the yarn 91 that cheese 90 involves passes through tension bracket 131, then by
Storage type Yarn feeder 133 enters broken yarn detection mechanism 14.Under non-weighing state (such as around yarn state), 131 level of tension bracket is set
It sets, two cable-through holes for sequentially passing through tension bracket 131 from the yarn 91 that cheese 90 involves are upwardly into storage type after bending and send
Yarn device 133, at this point, the yarn 91 between cheese 90 and storage type Yarn feeder 133 is under bending state；When being claimed
When re-detection, tension bracket driving device 132 drives tension bracket 131 to turn an angle the (tension along yarn 91 to tension bracket
Direction rotates), the yarn 91 that will be close to cheese 90 becomes relaxed state from the state for bending, tightening, it is ensured that electronic scale
11 accuracys weighed.
Below incorporated by reference to Fig. 2, Fig. 3 and Fig. 4, broken yarn detection mechanism 14 is fixed on workbench 113.Yarn 91 is examined from broken yarn
It surveys in the U-lag of mechanism 14 and passes through.In the present embodiment, broken yarn detection mechanism 14 uses photo-electric yarn break sensor, is called light
Electric-type visits silk sensor, is detected using motion state of the photovoltaic principals to yarn, when yarn 91 is normal, due to machine
The movement such as drawing-off or winding, the yarn 91 in the U-lag of broken yarn detection mechanism 14 have small shake, this shake can not
The transmitting and reception for blocking the right and left infrared light in U-lag disconnectedly make it generate continuous infrared pulse；When yarn 91 disconnects
After, which reduces or disappears；When shut down yarn 91 it is stationary when, the continuous infrared pulse reduce or
It disappears, thus photo-electric visits silk sensor by detection and judges that the frequency of infrared pulse can determine whether yarn 91 has disconnected
Or whether shut down.It is understood that in other embodiments, which can also be detected using other sensors,
Such as piezoelectric type, condenser type or photoelectric sensor.
Further, in the present embodiment, broken yarn detection mechanism 14 is also electrically connected with alarm mechanism, works as broken yarn detection mechanism
When 14 detection yarns 91 disconnections, card line and/or shutdown, alarm mechanism issues corresponding alarm, such as audio alarm and/or indicator light
Alarm etc..
Traversing yarn-laying component 15 is located on the side wall of fixing seat 114.In the present embodiment, traversing yarn-laying component 15 includes convex
Wheel 151, cam driving gear (not shown) and pendulum yarn bar 152.Cam driving gear can be motor or rotary cylinder etc..Cam
Driving device is located in fixing seat 114 and is connect with cam 151 to drive cam 151 to rotate.Put one end and the cam of yarn bar 152
151 transmission cooperations, the other end are equipped with cable-through hole.Yarn 91 enters yarn interwine device 16 after passing through the cable-through hole for putting yarn bar 152.Traversing
Put yarn component 15 pendulum yarn bar 152 by cam 151 drive can front and back swing by a small margin, effect be drive yarn 91 enter around
Front and back is carried out before yarn mechanism 16, and slightly swing is wrapped in yarn 91 equably on yarn interwine device 16, convenient for the accurate of yarn sample weight
Control.
It is understood that in some embodiments, such as when the circle number for 91 coiling of weight and yarn for needing to sample is smaller, the yarn
Line sampler 10 can also not contain the traversing yarn-laying component 15.
The yarn 91 unwound from cheese 90 is upwards successively by tension bracket 131, storage type Yarn feeder 133, broken yarn
Enter yarn interwine device 16 after the cable-through hole of testing agency 14 and pendulum yarn bar 152 to carry out around yarn.
Yarn interwine device 16 includes ryce 161 and means of a spool drive (not shown).Means of a spool drive is preferably stepping electricity
The higher actuator of machine equally accurate.Means of a spool drive is located in fixing seat 114.The shaft of ryce 161 and means of a spool drive
162 connect and can be rotated by means of a spool drive driving relative to board 11.
In the present embodiment, ryce 161 includes wheel shaft 1611, multiple spokes 1612 and multiple around yarn bar 1613.Wheel shaft
1611 connect with the shaft 162 of means of a spool drive.Multiple spokes 1612 are arranged around wheel shaft 1611 and the both ends of spoke 1612
It is connect respectively with wheel shaft 1611 and around yarn bar 1613.Means of a spool drive rotation drives wheel shaft 162 to rotate, and then drives around yarn bar
Yarn 91 is wound on multiple on yarn bar 1613 by 1613 rotations.
In the present embodiment, at least one spoke is extension type spoke 163 in multiple spokes 1612.The extension type
Spoke 163 includes casing 1631, telescopic rod 1632 and compressed spring (not shown).One end of telescopic rod 1632 is actively located in set
In pipe 1631, the other end is connect with around yarn bar 1613.Casing 1631 is connect with wheel shaft 1611.Compressed spring is set in telescopic rod
On 1632 and both ends are abutted against with casing 1631 and around yarn bar 1613 respectively.Under reset state, the length of extension type spoke 163
Equal to the length of other spokes 1612.
Further, in the present embodiment, which further includes pulled down yarn frame driver 23.Ryce is shunk to drive
Dynamic device 23 is located in workbench 113.The table top of workbench 113 is equipped with opening.The preferably flexible gas of pulled down yarn frame driver 23
Cylinder, output shaft can be pierced by from the opening, and connect from the radial interference of ryce 161 with extension type spoke 163 around yarn
Bar 1613, so as to become the yarn for being wound on coiling on ryce 161 91 from tensioning state in 1632 retraction casing 1631 of telescopic rod
Relaxation, unloads yarn convenient for subsequent.When the output shaft of pulled down yarn frame driver 23 retracts, telescopic rod 1632 and accordingly around yarn bar
1613 can reset under the action of compressed spring.
Yarn clamping mechanism 17 includes yarn clamping sheet 171 and yarn clamping sheet driving device 172.Yarn clamping sheet 171 and ryce 161 it is hinged and
Yarn clamping sheet 171 and ryce 161 cooperate to clamp yarn and thread head under reset state.Yarn clamping sheet driving device 172 is located at fixing seat 114
On side wall.The preferred telescopic cylinder of yarn clamping sheet driving device 172.In the reset state, one end of yarn clamping sheet 171 is outwardly and upwardly convex
Out around yarn bar 1613, the output shaft 1721 of yarn clamping sheet driving device, which can contradict downwards the end, keeps yarn clamping sheet 171 opposite around yarn bar
1613 rotations, to open up the gap to be formed and be passed through for yarn 91.
In the present embodiment, yarn clamping sheet 171 has one, and yarn clamping sheet 171 with it is hinged around yarn bar 1613.In the reset state
Yarn clamping sheet 171 cooperates with around yarn bar 1613 to clamp yarn and thread head.Extension type spoke 163 also has one.In the reset state, with
The extension type spoke 163 connection is located at bottom around yarn bar 1613, is hinged with being located at most around yarn bar 1613 for yarn clamping sheet 171
Top.It is understood that in other embodiments, yarn clamping sheet 171 can have multiple, and each yarn clamping sheet 171 and one are around yarn bar 1613
Hingedly, extension type spoke 163 can also have multiple, so as to more flexible control yarn clipping and shrink ryce 161.
In the present embodiment, do not influence will be on ryce 161 from side for yarn clamping sheet 171 and the clamping force between yarn bar 1613
The yarn 91 of coiling is released from yarn bar 1613.It is understood that in other embodiments, the output shaft of yarn clamping sheet driving device
1721 can also contradict one end of the stretching of yarn clamping sheet 171 upwards, open yarn clamping sheet 171 downwards, such as can be in output shaft
Two cross bars being arranged above and below are set on 1721, and one end of the stretching of yarn clamping sheet 171 is located between two cross bars, works as yarn clamping sheet
When the output shaft 1721 of driving device moves downward, can contradict the end downwards makes yarn clamping sheet 171 so that yarn clamping sheet 171 is beaten upwards
It opens, when the output shaft 1721 of yarn clamping sheet driving device moves upwards, can contradict the end upwards makes yarn clamping sheet 171 so that yarn clipping
Piece 171 is opened downwards.The opening of yarn clamping sheet 171 described in the present embodiment refers to yarn clamping sheet 171 relatively accordingly around 1613 turns of yarn bar
It is dynamic in yarn clamping sheet 171 and gap should be unfolded between yarn bar 1613.
Shang Sha mechanism 18 is located on workbench 113, is cut for clamping yarn 91 for Jian Sha mechanism 19, and for that will cut
The new yarn and thread head generated afterwards draws at yarn clamping mechanism 17 and clamps for yarn clamping sheet 171.
Shang Sha mechanism 18 includes upper yarn bar 181, upper yarn rod driving device (not shown), supporting plate 182 and yarn clipping electromagnet
183.Upper yarn driving device is located in workbench 113.Upper yarn rod driving device can be motor or rotary cylinder etc., preferably electricity
Machine.One end of upper yarn bar 181 connect with upper yarn driving device and can be driven by upper yarn driving device and rotated, and the other end is fixed to be connected
It is connected to supporting plate 182.Yarn clipping electromagnet 183 is located on supporting plate 182.The energization of yarn clipping electromagnet 183 can clamp yarn 91, after power-off
Unclamp yarn 91.In the reset state, one end that upper yarn bar 181 is connect with supporting plate 182 is set close to the yarn position that enters of ryce 161
It sets.
Jian Sha mechanism 19 is fixed on supporting plate 182, for cutting yarn 91.Specifically in the present embodiment, Jian Sha mechanism 19
Including scissors 191 and scissors driving device 192.Scissors driving device 192 is located on supporting plate 182.Scissors driving device 192 is preferred
The actuators such as telescopic cylinder.Scissors 191 connect with scissors driving device 192 and can have from scissors driving device 192 and drives to yarn
Line 91 is moved to cut yarn 91.
After yarn 91 are cut by Jian Sha mechanism 19, upper yarn driving device is able to drive the rotation of yarn bar 181, yarn clipping electromagnet
183 draw new yarn and thread head to being clamped at yarn clamping sheet 171 for yarn clamping sheet 171.
Yarn discharging mechanism 20 unloads yarn component and second including first and unloads yarn component.
First to unload yarn component include first unloading yarn push plate 2011 and first unloading yarn driving device (not shown).First unloads yarn drive
Dynamic device is located on the side wall of fixing seat 114 and unloads yarn push plate 2011 with first and connect.First, which unloads yarn driving device, preferably stretches
Cylinder.First unloads yarn driving device for driving first to unload the yarn that yarn push plate 2011 pushes out coiling from the side of ryce 161
Line 91 is detached from yarn 91 from ryce 161.
Second, which unloads yarn component, unloads yarn component with first and is oppositely arranged.Second unload yarn component include second unload yarn push plate 2021 and
Second unloads yarn driving device (not shown).Second, which unloads yarn driving device, is located on the side wall of fixing seat 114 and unloads yarn with second and push away
Plate 2021 connects.Second unloads the preferred telescopic cylinder of yarn driving device.Second unload yarn driving device for drive second unload yarn push plate
2021 push out the yarn 91 of coiling from the side of ryce 161.
Twist yarn mechanism 21 includes the first yarn clipping component 211, the second yarn clipping component 212 and twist yarn driving device 213.
First yarn clipping component 211 includes the first yarn clip board 2111 and the first yarn clip board driving device 2112.First yarn clip board
The output axis connection that the fixing seat of driving device 2112 unloads yarn driving device with first, with by first unload yarn driving device drive with
First, which unloads yarn push plate 2011, moves synchronously.First yarn clip board driving device 2112 is connect with the first yarn clip board 2111 to drive first
Yarn clip board 2111 unloads yarn push plate 2011 to first and rotates, and is matched with to unload yarn push plate 2011 with first and clamps yarn 91.First folder
Yarn plate driving device 2112 can be the actuators such as rotary cylinder or motor.
Second yarn clipping component 212 includes the second yarn clip board 2121 and the second yarn clip board driving device 2122.Second yarn clip board
2121 and second unload yarn push plate 2021 hingedly.The fixing seat of second yarn clip board driving device 2122 and second unloads yarn driving device
Axis connection is exported, yarn push plate 2021 is unloaded to unload the drive of yarn driving device by second with second and moves synchronously.The driving of second yarn clip board
Device 2122 is preferably the actuators such as telescopic cylinder.The output shaft of second yarn clip board driving device 2122 can be with the second yarn clip board
2121 one end is abutted against to control the other end of the second yarn clip board 2121 and open or close.Described open or close refers to second
Yarn clip board 2121, which with second unloads yarn push plate 2021 and matches, to be opened or closed.
The output axis connection that the fixing seat of twist yarn driving device 213 unloads yarn driving device with second.Twist yarn driving device 213
It is preferred that the actuators such as motor.Twist yarn driving device 213 is unloaded yarn push plate 2021 with second and is connect to drive second to unload yarn push plate 2021
Rotation, and then drive and unload the second hinged yarn clip board 2121 of yarn push plate 2021 with second and rotate, to the second yarn clip board 2121 and the
Two, which unload the yarn 91 that yarn push plate 2021 is clamped, carries out twist yarn.
Receiving mechanism 22 is located in workbench 113.Rewinding mouth 221 is offered on workbench 113.When the first yarn clipping component
211 and second yarn clipping component 212 yarn 91 of twisting is decontroled after, can be fallen into receiving mechanism 22 from the rewinding mouth 221.At this
In embodiment, receiving mechanism 22 is the drawer-type structure being actively installed in workbench 113.
Control mechanism can be programmable logic controller (PLC) (PLC) or computer etc..Control mechanism and electronic scale 12, tension
Frame driving device 132, alarm mechanism, cam driving gear, means of a spool drive, shrinks ryce driving at broken yarn detection mechanism 14
Device 23, yarn clamping sheet driving device 172, upper yarn driving device, scissors driving device 192, first unload yarn driving device, second unload
Yarn driving device, the first yarn clip board driving device 2112, the second yarn clip board driving device 2122 and twist yarn driving device 213 are distinguished
It is electrically connected, to control each mechanism interoperation.
Specifically, in the present embodiment, the course of work of the yarn sampler 10 can refer to as follows:
Artificial upper yarn for the first time: cheese 90 is placed on the pallet of electronic scale 12 by operative employee, by yarn 91 from cheese
It is unwound on 90, yarn and thread head sequentially passes through the cable-through hole of tension bracket 131, storage type Yarn feeder 133 (in storage type Yarn feeder
The certain circle number of coiling on 133), broken yarn detection mechanism 14, put yarn bar 152 cable-through hole after by yarn clamping sheet 171 with around yarn bar
1613 cooperations are clamped, and are then selected the parameters such as yarn count, grammes per square metre and yarn sample sampling number in interpersonal operation interface, are then started yarn
Sampler 10.
Automatically weigh around yarn: control mechanism controls means of a spool drive movement, and driving ryce 161 carries out working as ryce around yarn
When 161 turnning circles reach predetermined amount X, control mechanism controls means of a spool drive and stops driving, and controls tension bracket driving
Device 132 rotates predetermined angle so that the yarn 91 between storage type Yarn feeder 133 and cheese 90 becomes pine from tensioned state
It relaxes, electronic scale 12 carries out subtracting poor weighing, and control mechanism obtains weighing data Y, and control mechanism calculates unit length yarn 91
Weight Y/ (X*Z), wherein Z indicates a circle being divided into Z equal portions, when such as Z being 100, indicates a circle being divided into 100 equal portions, and count
The yarn sample that calculating will reach target sampling weight M also needs length (M-Y)/(Y/ (X*Z)) of coiling, and control mechanism then passes through
The mechanisms such as angular encoder accurately control means of a spool drive movement, at leisure around remaining yarn 91 is taken, until reaching target
Sample weight M.If it is necessary, control mechanism can control means of a spool drive to shut down during around remaining yarn 91 are taken
Repeatedly to weigh.Every time weighing when, control mechanism control tension bracket driving device 132 driving tension bracket 131 rotate it is pre-
If angle is so that the yarn 91 close to cheese 90 becomes loose from tensioned state, and control tension bracket 131 resets after the weighing.
Automatic shearing yarn, yarn clipping: control mechanism controls upper yarn driving device movement, and yarn bar 181 rotates in driving, keeps yarn clipping electric
Magnet 183 reaches the pendulum cable-through hole of yarn bar 152 and entering between yarn position for ryce 161, and controls the energization folder of yarn clipping electromagnet 183
The firmly yarn 91 at the position；Control mechanism then controls the movement of scissors driving device 192, and the driving movement of scissors 191 will put yarn
The cable-through hole of bar 152 and the yarn 91 between yarn position that enters of ryce 161 are cut, and the new yarn and thread head generated after cutting can be by yarn clipping
Electromagnet 183 is clamped.
Ryce is shunk automatically: after yarn 91 is cut, control mechanism controls means of a spool drive movement, keeps ryce 161 multiple
Position, what is connect with extension type spoke 163 is located at bottom around yarn bar 1613, be hinged with yarn clamping sheet 171 around 1613, yarn bar
In the top；Control mechanism then controls the movement of pulled down yarn frame driver 23, and driving extension type spoke 163 is shunk, and makes yarn
The relaxation of yarn 91 of coiling on frame 161, unloads yarn convenient for subsequent.
Automatically unload yarn, twist yarn: after extension type spoke 163 is shunk, yarn driving device and the are unloaded in control mechanism control first
Two unload yarn driving device acts respectively, and first unloads yarn push plate 2011 and second unload side of the yarn push plate 2021 from the yarn 91 of coiling
It forward extends out；To after encountering yarn 91, control mechanism then controls the first yarn clip board driving device 2112 and the second yarn clip board drives
Dynamic device 2122 acts respectively, and the first yarn clip board 2111 and first unloads the yarn that coiling is clamped in the cooperation of yarn push plate 2011 from one end
91, the second yarn clip board 2121 and second unloads the yarn 91 that coiling is clamped in the cooperation of yarn push plate 2021 from the other end；Control mechanism is then
Continue control first to unload yarn driving device and second unload yarn driving device and act respectively, first unloads yarn push plate 2011 and second unload yarn
Push plate 2021 continues to forward extend out, and the yarn 91 of coiling is released from ryce 161；Then control mechanism control twist yarn driving dress
213 movements are set, the second yarn clip board 2121 and second is driven to unload the rotation predetermined amount progress twist yarn of yarn push plate 2021；Control mechanism connects
Control the first yarn clip board driving device 2112 and the second yarn clip board driving device 2122 act respectively, unclamp the yarn of twisting
91, fall into it in receiving mechanism 22；Last control mechanism control first unloads yarn driving device and second unloads yarn driving device point
Do not move work drive first unload yarn push plate 2011, second unload yarn push plate 2021, the second yarn clip board 2121, second unload yarn push plate 2021 and
Twist yarn driving device 213 resets, to unload yarn, twist yarn automatically to next round.
Automatic upper yarn: finishing to the sampling of last round of yarn sample, and after corresponding reset, control mechanism controls yarn clamping sheet driving
Device 172 acts, and opens yarn clamping sheet 171；Control mechanism then controls yarn driving device and acts, 181 turns of yarn bar in driving
Dynamic, the new yarn and thread head that yarn clipping electromagnet 183 is clamped is passed through between yarn bar 1613 with corresponding to default from yarn clamping sheet 171
Position (length that each yarn and thread head passes through keeps almost the same, to guarantee the accuracy of every sub-sampling)；Control mechanism control folder
Yarn sheet driving device 172 resets, and closes yarn clamping sheet 171, and yarn clamping sheet 171, which is resetted, clamps new yarn with around the cooperation of yarn bar 1613
Head carries out the yarn sample sampling of a new round.
Broken yarn alarm: when broken yarn detection mechanism 14 detects between storage type Yarn feeder 133 and traversing yarn-laying component 15
After 91 broken yarn of yarn, control mechanism can control alarm mechanism alarm, remind operative employee's wiring；Broken yarn detection mechanism 14 is according to yarn
91 different motion state, control mechanism can control corresponding status indicator lamp to light, and show the motion state of yarn 91.
Change yarn prompting: when the total weight of cheese 90 is lower than preset weight, when such as 200g, control mechanism controls corresponding machine
Structure is shut down, and controls alarm mechanism alarm, and operative employee is reminded to replace cheese 90.
The board 11, yarn interwine device 16, yarn clamping mechanism 17, Jian Sha mechanism 19, Shang Sha mechanism 18 and control machine of the present embodiment
Structure constitutes the yarn winding device of automatic upper yarn, in addition to needing manually to connect yarn for the first time, when carrying out other batch yarn coilings, and equal nothing
Manual operation is needed, it is high-efficient.The yarn winding device of the automatic upper yarn is not limited to use in the yarn sampler 10 of the present embodiment, can be wide
The general occasion for being applied to carry out the yarn of yarn source (such as cheese) coiling in batches.In addition, the automatic upper yarn around yarn
Device can be combined with the storage type Yarn feeder 133, broken yarn detection mechanism 14 and/or traversing yarn-laying component 15 of the present embodiment, with
The coiling tension for adjusting yarn makes being wound on ryce 161 for Yarn homogeneous, and detectable broken yarn, card line or shutdown status, nothing
It need to manually monitor, be conducive to use manpower and material resources sparingly, reduce production cost, and be further conducive to the raising of production efficiency.
Above-mentioned yarn sampler 10 passes through the weights of 12 real-time monitoring cheese 90 of electronic scale, and control mechanism is according to electricity
The weights control means of a spool drive rotation for the cheese 90 that sub- scale 12 monitors is shut down, and in control means of a spool drive
Yarn clamping sheet driving device 172,18 interoperation of Jian Sha mechanism 19 and Shang Sha mechanism are controlled after shutdown, and it is dynamic such as to control Shang Sha mechanism 18
Make to clamp yarn 91 for Jian Sha mechanism 19 and cut, so as to remove the yarn 91 of coiling, then controls yarn clamping sheet driving dress
It sets 172 movements and opens yarn clamping sheet, and control Shang Sha mechanism 18 and draw the new yarn and thread head generated after cutting to yarn clamping mechanism 17
It is clamped for yarn clamping sheet 171, to carry out sub-sampling again.The yarn sampler automatically controls during taking 10 samples, weighs without artificial,
Without artificial survey, long, amendment, high-efficient.
It is understood that in other embodiments, which can not contain pulled down yarn frame driver 23 and can
Telescopic spoke 163, correspondingly, by being set as round and smooth around the surface of yarn bar 1613；Furthermore unloading yarn and/or twist yarn process can also be with
It is accomplished manually by operative employee；Broken yarn detection can also be by personal monitoring.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (8)
1. a kind of yarn winding device of automatic upper yarn characterized by comprising
Board；
Yarn interwine device, including ryce and means of a spool drive, the means of a spool drive are located on the board, the ryce with
The shaft of the means of a spool drive is connected and can be driven by the means of a spool drive and rotated relative to the board；
Yarn clamping mechanism, including yarn clamping sheet and yarn clamping sheet driving device, the yarn clamping sheet and the ryce are hinged and in reset state
Under the yarn clamping sheet and the ryce cooperate to clamp yarn and thread head, the yarn clamping sheet driving device is located on the board, described
Yarn clamping sheet driving device can push the yarn clamping sheet to rotate relative to the ryce and be passed through with opening for yarn and thread head；
Jian Sha mechanism is located on the board, for cutting yarn；
Shang Sha mechanism is located on the board, is cut for clamping yarn for the Jian Sha mechanism, and for generating after cutting
New yarn and thread head draw at the yarn clamping mechanism and clamped for the yarn clamping sheet；The Shang Sha mechanism includes upper yarn bar, the drive of upper yarn
Dynamic device, supporting plate and yarn clipping electromagnet；The upper yarn driving device is located on the board, one end of the upper yarn bar with it is described
Upper yarn driving device is connected and can be fixedly connected with by the upper yarn driving device driving rotation, the other end of the upper yarn bar
The supporting plate, the yarn clipping electromagnet are located on the supporting plate；The Jian Sha mechanism is fixed in the support of the Shang Sha mechanism
Plate, the Jian Sha mechanism after the entering and cut yarn between yarn position of the position that the yarn clipping electromagnet is clamped and the ryce,
The upper yarn driving device is turned to the supporting plate for accompanying yarn close to the institute for being hinged with the yarn clamping sheet by the upper yarn bar
State ryce, and pass through yarn between the yarn clamping sheet and the ryce after opening so that the yarn clamping sheet reset after with
New yarn and thread head is clamped in the ryce cooperation；And
Control mechanism, with the means of a spool drive, the yarn clamping sheet driving device, the Jian Sha mechanism and the Shang Sha mechanism
It is electrically connected, the control mechanism is rotated or shut down for controlling the means of a spool drive, and described around yarn in control
Driving device controls the yarn clamping sheet driving device, the Jian Sha mechanism and Shang Sha mechanism interoperation after shutting down；It is described
Upper yarn driving device and the control mechanism are electrically connected, and the control mechanism is electrically connected with the yarn clipping electromagnet to pass through
It is powered or power-off controls the yarn clipping electromagnet and clamps or unclamp yarn.
2. the yarn winding device of automatic upper yarn as described in claim 1, which is characterized in that further include storage type Yarn feeder；It is described
Storage type Yarn feeder is located on the board, and the yarn drawn from yarn source stores predetermined amount by the storage type Yarn feeder
Enter the yarn interwine device afterwards.
3. the yarn winding device of automatic upper yarn as described in claim 1, which is characterized in that further include broken yarn detection mechanism；It is described
Broken yarn detection mechanism is located on the board and is electrically connected with the control mechanism.
4. the yarn winding device of automatic upper yarn as described in claim 1, which is characterized in that further include traversing yarn-laying component；It is described
Traversing yarn-laying component includes cam, cam driving gear and pendulum yarn bar；
The cam driving gear is located on the board and connect with the cam to drive the cam to rotate, the pendulum yarn
One end of bar and the cam drive cooperate, and the other end is equipped with cable-through hole；
The control mechanism and the cam driving gear are electrically connected to control the cam driving gear and act；
The yarn enters the yarn interwine device after passing through the cable-through hole for putting yarn bar.
5. the yarn winding device of automatic upper yarn as described in any one of claims 1 to 4, which is characterized in that the ryce includes
Wheel shaft, multiple spokes and multiple around yarn bar；The wheel shaft is connect with the shaft of the means of a spool drive；Multiple spokes enclose
Around the both ends of wheel shaft setting and the spoke respectively with the wheel shaft and described connect around yarn bar；
Means of a spool drive rotation drives the wheel shaft rotation, so drive it is described yarn is wound on around the rotation of yarn bar it is described
On yarn bar.
6. the yarn winding device of yarn as claimed in claim 5 automatic upper, which is characterized in that the yarn clamping sheet at least one, and
The yarn clamping sheet with it is described hinged around yarn bar, in the reset state the yarn clamping sheet and it is described around yarn bar cooperate to clamp yarn
Head.
7. the yarn winding device of automatic upper yarn as claimed in claim 6, which is characterized in that in the reset state, the yarn clamping sheet
One end outwardly protrude described around yarn bar, the output shaft of the yarn clamping sheet driving device, which can contradict the end, makes yarn clamping sheet with respect to institute
It states and is rotated around yarn bar, to be unfolded into the gap passed through for yarn.
8. the yarn winding device of automatic upper yarn as described in claim 1, which is characterized in that the Jian Sha mechanism includes scissors and cuts
Driving device for cutter；The scissors driving device is located on the supporting plate, and the scissors is connect with the scissors driving device and energy
It is enough to be driven to yarn movement from the scissors driving device to cut yarn.
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| CN201610352236.0A CN105883498B (en) | 2016-05-24 | 2016-05-24 | The yarn winding device of automatic upper yarn |
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| CN201610352236.0A CN105883498B (en) | 2016-05-24 | 2016-05-24 | The yarn winding device of automatic upper yarn |
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| CN105883498B true CN105883498B (en) | 2019-03-26 |
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| CN108190646B (en) * | 2018-02-09 | 2023-09-22 | 云南柔控科技有限公司 | Intelligent yarn unloading and rectangular coordinate robot automatic yarn supplementing system |
| CN108946299B (en) * | 2018-04-23 | 2020-12-29 | 绵阳聚贤自动化设备有限公司 | Lifting type quick winding equipment |
| CN108861855B (en) * | 2018-04-23 | 2020-12-29 | 绵阳聚贤自动化设备有限公司 | Intelligent flat cable winding device |
| CN108946300B (en) * | 2018-04-23 | 2020-12-29 | 绵阳聚贤自动化设备有限公司 | Special equipment for rolling finished product in cable production |
| CN108928015B (en) * | 2018-05-29 | 2020-07-28 | 江苏九鼎新材料股份有限公司 | Automatic yarn winding system for glass fiber reinforced plastic molding grid |
| CN108859174B (en) * | 2018-05-29 | 2021-04-27 | 江苏九鼎新材料股份有限公司 | Yarn winding vehicle for glass fiber reinforced plastic molding grid |
| CN109132710A (en) * | 2018-09-06 | 2019-01-04 | 澳洋集团有限公司 | A kind of textile yarn winding mechanism |
| CN109809242B (en) * | 2019-04-04 | 2024-04-16 | 复向诺唯信生物科技(苏州)有限公司 | Winding device capable of preventing yarn breakage for regenerated ecological yarn fiber production |
| CN109850677B (en) * | 2019-04-12 | 2024-04-12 | 张家港市塘桥镇鹿苑鑫森纺纱厂 | Swinging winch |
| CN112079196A (en) * | 2020-10-23 | 2020-12-15 | 东台奥力芬化纤有限公司 | Production device for polypropylene fiber space-variant yarns with fixed weight and fixed length |
| CN112678621B (en) * | 2020-12-30 | 2024-03-15 | 江苏关怀医疗科技有限公司 | Linear winding rocker arm wire winding machine |
| CN113526239B (en) * | 2021-06-25 | 2024-01-30 | 广东溢达纺织有限公司 | Wire bonding equipment and wire bonding method |
| CN114506736A (en) * | 2022-03-21 | 2022-05-17 | 迈得医疗工业设备股份有限公司 | Silk thread conveying control method and silk thread collecting device |
| CN114655774B (en) * | 2022-03-29 | 2023-11-24 | 吴江新民高纤有限公司 | Automatic winder is used in textile production of direction outgoing line |
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| DE102005022187A1 (en) * | 2005-05-13 | 2006-11-16 | Saurer Gmbh & Co. Kg | Air spinning to produce high quality product uses an auxiliary thread which is cast off to allow knotting and splicing of newly spun thread with the upper thread |
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