CN110644127B - Wire adjusting head - Google Patents

Wire adjusting head Download PDF

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Publication number
CN110644127B
CN110644127B CN201911004986.9A CN201911004986A CN110644127B CN 110644127 B CN110644127 B CN 110644127B CN 201911004986 A CN201911004986 A CN 201911004986A CN 110644127 B CN110644127 B CN 110644127B
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CN
China
Prior art keywords
yarn
scissors
assembly
base
mouth plate
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Application number
CN201911004986.9A
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Chinese (zh)
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CN110644127A (en
Inventor
张志勇
张镇宏
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Quanzhou Quanneng Intelligent Control Machinery Research Institute Co ltd
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Quanzhou Quanneng Intelligent Control Machinery Research Institute Co ltd
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Priority to CN201911004986.9A priority Critical patent/CN110644127B/en
Publication of CN110644127A publication Critical patent/CN110644127A/en
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/54—Thread guides
    • D04B15/56—Thread guides for flat-bed knitting machines
    • D04B15/565—Associated thread-clamping or thread-severing devices
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/48—Thread-feeding devices
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/54—Thread guides
    • D04B15/58—Thread guides for circular knitting machines; Thread-changing devices
    • D04B15/60—Thread guides for circular knitting machines; Thread-changing devices with thread-clamping or -severing devices
    • 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)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)

Abstract

The invention relates to a wire adjusting head. The yarn adjusting mechanism comprises a yarn mouth plate and a scissor assembly matched with the yarn mouth plate, a first pin shaft matched with a first slot hole is arranged at the rear end of the scissor assembly, the first pin shaft at the rear end of the scissor assembly is matched and connected with the first slot hole at the rear end of the yarn mouth plate, and the front end of the scissor assembly is connected with the base through a guide assembly; the thread regulating head also comprises a first reset component connected between the base and the yarn mouth plate; the thread regulating head also comprises a driving device for driving the scissors assembly to loosen or cut the yarns. The thread regulating head of the invention starts a novel thread regulating mechanism, which not only can stably exchange yarns for the knitting needles on the knitting needle machine, but also can clamp and cut the yarns for preparing for the subsequent thread regulating work when the knitting of the yarns is finished.

Description

Wire adjusting head
Technical Field
The invention relates to the field of textile machinery equipment, in particular to a thread regulating head.
Background
The yarn adjusting head refers to a device which can change yarn (A) for a knitting needle (B) on a knitting machine in the field of textile machinery equipment so that the changed yarn (A) is hooked by the knitting needle (B) to be knitted, and can clamp and cut the yarn (A) when the knitting of one yarn (A) is finished, thereby preparing for the next yarn adjusting work. The existing thread regulating head adopts a structure shown in fig. 1, the existing thread regulating mechanism (C) of the thread regulating head takes a starting cylinder (C1) as a driving device and takes a reset tension spring (C2) as a reset device, when one type of yarn (A) is finished in knitting, a piston rod in the starting cylinder (C1) overcomes the tension force of the reset tension spring (C2) under the action of high pressure (generally, the gas pressure for the braiding machine is 0.6-0.7 mpa), one end of a scissors assembly (called scissors (C3) in the field) is pushed downwards, the other end of the scissors (C3) is opened upwards around a hinge shaft (C5) to be ready for clamping and cutting the yarn (A) which is reset by a yarn nozzle (C4) and fed into a cutting edge (C31), after the yarn nozzle (C4) is reset, the high pressure gas is disconnected, and at the moment, the scissors (C3) are closed under the action of the reset tension spring (C2), so that the yarn (A) is cut and clamped. The structure has the defects that the closing action of the scissors (C3) is completed by the pulling force of the reset tension spring (C2), so that the reset tension spring (C2) needs to have certain strength, the scissors (C3) cannot be driven to be completely closed if the pulling force of the reset tension spring (C2) is insufficient, the yarns (A) cannot be cut off, the knitting operation cannot be successfully completed, the problem that the pulling force of the reset tension spring (C2) cannot be overcome by a piston rod in the starting cylinder (C1) can occur if the pulling force of the tension spring is enhanced, the scissors (C3) cannot be pushed to be completely opened, the piston rod in the cylinder needs to overcome the pulling force of the reset tension spring (C2) when the scissors (C3) are pushed to be opened, energy loss is caused, and the yarns (A) cannot be fed into the cutting edge (C31) by a reset yarn nozzle (C4) under the condition that the scissors (C3) are not completely opened to be cut off. Therefore, under the condition that the pressure is generally 0.6-0.7 mpa in the textile field, the designed yarn adjusting head cannot work stably.
Disclosure of Invention
The invention aims at: the yarn regulating head has the advantages that the yarn regulating head is provided, a novel yarn regulating mechanism is started, yarn can be stably exchanged for a knitting needle on a knitting machine, and the yarn can be clamped and cut off for subsequent yarn regulating work when yarn knitting is finished.
The invention is realized by the following technical scheme: the utility model provides a transfer line head which characterized in that: the yarn adjusting mechanism comprises a yarn mouth plate and a scissor assembly matched with the yarn mouth plate, wherein a yarn threading hole is formed in the front end of the yarn mouth plate, the free end of yarn penetrates through the yarn threading hole and then is clamped and fixed on the scissor assembly, the yarn mouth plate is connected to the base in a sliding mode and can slide back and forth relative to the base, a first slot hole extending in the front-back direction is formed in the rear end of the yarn mouth plate, a first pin shaft matched with the first slot hole is arranged in the rear end of the scissor assembly, the first pin shaft at the rear end of the scissor assembly is matched and connected with the first slot hole at the rear end of the yarn mouth plate, and the front end of the scissor assembly is connected with the base through a guide assembly;
the yarn adjusting head further comprises a first driving component connected between the base and the yarn mouth plate and used for pushing the yarn mouth plate to slide forwards relative to the base, and a first reset component connected between the base and the yarn mouth plate and used for driving the yarn mouth plate to reset backwards; the first slotted hole on the yarn mouth plate can push the first pin shaft on the scissors assembly to drive the scissors assembly to move forwards and backwards, the scissors assembly can be opened downwards relative to the yarn mouth plate through the first pin shaft under the action of the guide assembly when moving forwards, and the scissors assembly can be driven to be closed upwards relative to the yarn mouth plate to reset under the action of the guide assembly when moving backwards; the thread regulating head also comprises a driving device for driving the scissors assembly to loosen or cut the yarns.
Preferably, the scissors assembly comprises a scissors fixing piece, a yarn clamping plate fixedly connected with the scissors fixing piece and positioned between the scissors fixing piece and the yarn mouth plate, and a scissors movable piece which is connected between the scissors fixing piece and the yarn clamping plate in a front-back sliding manner; the first pin shaft is fixedly arranged at the rear end of the scissors fixing piece, and the guide assembly comprises a first guide groove arranged at the front end of the scissors fixing piece and a first guide rod fixedly arranged on the base and matched with the first guide groove;
the front end part of the yarn clamping plate is provided with a first arc-shaped groove with an upper opening, and the front end part of the scissors fixing piece is provided with a second arc-shaped groove with an upper opening at a position corresponding to the first arc-shaped groove; in the initial state, the free end of the yarn passes through the first arc-shaped groove and then is fixedly clamped between the two side walls of the yarn clamping plate matched with the movable part of the scissors;
the rear end of the scissors movable piece is provided with a first protruding block extending downwards, and the driving device comprises a pushing piece, a second driving component and a second reset component, wherein the pushing piece is connected to the base in a sliding manner and is positioned below the scissors component, the second driving component is connected between the pushing piece and the base and is used for pushing the pushing piece to slide, and the second reset component is connected between the pushing piece and the base and is used for driving the pushing piece to reset; the pushing piece can push the first protruding blocks on all the scissors assemblies in the open state backwards for a certain distance, and then the second reset assembly drives the pushing piece to reset, so that the scissors moving piece can slide backwards relative to the scissors fixing piece to loosen yarns; in the resetting process that the scissor assembly is closed upwards relative to the yarn mouth plate, the first arc-shaped groove and the second arc-shaped groove on the scissor assembly can hook back the yarn hooked by the knitting needle; the base is provided with a limiting surface for limiting the limit position of the backward movement of the scissor movable piece; the yarn mouth plate is provided with a second protruding block extending downwards; the front-most part of the movable scissors is provided with a cutting edge, the movable scissors stops moving backwards when a first lug on the movable scissors contacts a limiting surface in the resetting process, and a pushing piece can push a second lug on the yarn mouth plate backwards for a certain distance when the movable scissors stops moving and then drives the pushing piece to reset by a second resetting component, so that the fixed scissors slides backwards relative to the movable scissors to clamp and cut yarns.
Preferably, the first guide groove comprises a first groove, a second groove and a third groove which are sequentially connected in an arc transition mode; the first groove is horizontally arranged along the front-rear direction, the groove is obliquely upwards and backwards, and the third groove is obliquely downwards and backwards; the scissors fixing piece is fixedly connected with the yarn clamping plate through more than two second pin shafts; the scissors moving part is provided with second slotted holes which are matched with the second pin shafts in number and position and extend along the front-back direction.
Preferably, the yarn mouth plate is provided with a push block, the scissor fixing piece is provided with a protruding piece which is positioned in front of the push block and extends upwards, and when the yarn mouth plate moves forwards, the push block can push the protruding piece so as to drive the scissor assembly to move forwards, so that the first guide rod enters the second groove from the first groove.
Preferably, the pushing piece comprises two connecting rods which are arranged at the left side and the right side of the base and extend along the front-back direction, and two connecting shafts which are vertically connected between the two connecting rods; the side walls on the left side and the right side of the base are provided with second guide grooves; the second guide groove comprises a first guide groove and a second guide groove which are sequentially connected in an arc transition mode; the first guide groove and the second guide groove are both inclined upwards and backwards, and the inclination of the second guide groove is smaller than that of the first guide groove; the left end and the right end of the connecting shaft positioned in front are respectively matched and connected in the two second guide grooves, the second driving component is a second cylinder arranged on the base and positioned between the connecting shafts positioned in the rear, and the second resetting component is a second tension spring connected between the base and the connecting shafts positioned in the rear.
Preferably, the first driving component is a first cylinder which is arranged above the yarn adjusting mechanism and connected between the base and the yarn mouth plate and used for pushing the yarn mouth plate to slide, and the first resetting component is a first tension spring connected between the base and the yarn mouth plate.
Preferably, the scissors assembly further comprises a spring piece clamped between the scissors fixing piece and the yarn clamping plate and used for enabling the scissors moving piece and the yarn clamping plate to keep a clamping state.
Preferably, the scissors assembly further comprises a partition plate arranged between the two wire adjusting mechanisms for preventing the components from interfering with each other.
Preferably, the yarn adjusting head further comprises yarn guiding holes which are arranged above the base and are corresponding to the yarn adjusting mechanisms in number and are used for guiding yarns conveniently.
Preferably, the yarn mouth plate is provided with more than two sliding grooves extending along the front-back direction, and the base is provided with a fixing rod which can penetrate through the sliding grooves and is in sliding fit with the sliding grooves.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention provides a thread regulating head, which enables a novel thread regulating mechanism, yarn can be stably exchanged for knitting needles on a knitting machine through the matching movement of a yarn mouth plate and a scissor assembly, and the scissor assembly can clamp and cut yarn for preparing for the subsequent thread regulating work when the knitting of the yarn is finished under the drive of a driving device.
2. According to the yarn cutting device, the yarn cutting device is driven by the first driving component to move forwards, the scissors component can be driven by the first slotted hole through the first pin shaft to open downwards relative to the yarn cutting device along the guiding direction of the first guiding groove, so that a knitting needle on the knitting machine can hook yarns between the yarn cutting device and the scissors component, then the second driving component drives the pushing component to slide and pushes the movable part of the scissors to move backwards relative to the fixed part of the scissors to loosen the yarns, at the moment, the knitting needle can hook the yarns to knit, after the knitting of the yarns is finished, the first reset component drives the whole yarn adjusting mechanism to reset, the scissors component can continuously hook the yarns back in the upward closing process of the scissors component, then the yarn adjusting mechanism can continuously reset, when the movable part of the scissors continuously resets, the first bump on the movable part of the scissors is in touch with the limiting surface, and when the movable part of the scissors stops moving, the second bump on the movable part of the scissors can push the movable part of the scissors backwards for a certain distance, so that the fixed part of the scissors can slide backwards relative to clamp the movable part of the scissors, and the whole yarn cutting device is clamped backwards, and the yarn cutting device has the characteristics of reasonable design stability.
3. The first guide groove comprises a first groove, a second groove and a third groove which are sequentially connected in an arc transition mode; in the forward movement process of the yarn mouth plate, the first guide rod can sequentially pass through the first groove, the second groove and the third groove, so that the scissor assembly can be opened downwards relative to the yarn mouth plate.
4. The yarn mouth plate is provided with the push block, the scissor fixing piece is provided with the protruding piece which is positioned in front of the push block and extends upwards, and when the yarn mouth plate moves forwards, the push block can push the protruding piece so as to drive the scissor assembly to move forwards, so that the first guide rod enters the second groove from the first groove.
5. The second cylinder can push the connecting shaft positioned in front to slide along the guiding direction of the second guiding groove, so that the pushing piece can push the movable piece of the scissors to loosen the yarn and push the fixed piece of the scissors to move backwards relative to the movable piece of the scissors to clamp and cut the yarn.
6. The scissors assembly further comprises a spring piece clamped between the scissors fixing piece and the yarn clamping plate, and the spring piece is used for enabling the scissors moving piece and the yarn clamping plate to keep a clamping state.
7. The scissors assembly further comprises a partition plate arranged between the two wire adjusting mechanisms, and mutual interference of components can be avoided.
Drawings
FIG. 1 is a schematic three-dimensional structure of a conventional tuner;
FIG. 2 is a schematic three-dimensional structure of the tuning head according to the present invention;
FIG. 3 is a schematic view of a three-dimensional structure of a portion of a base with a tuner removed according to the present invention;
FIG. 4 is a schematic view of a three-dimensional structure of a portion of a base with a tuner removed according to the present invention;
FIG. 5 is a schematic view of the three-dimensional structure of FIG. 4 from another perspective;
FIG. 6 is a schematic three-dimensional structure of a group of thread adjusting mechanisms in the thread adjusting head in an open state;
FIG. 7 is a schematic three-dimensional structure of a group of thread adjusting mechanisms in the thread adjusting head in a closed state;
FIG. 8 is a schematic diagram of a wire adjusting mechanism in a wire adjusting head according to the present invention;
FIG. 9 is an exploded view of FIG. 8;
fig. 10 is a schematic structural view of a portion of a base in the tuner according to the present invention.
Description of the reference numerals: the yarn feeder comprises a 1-base, a 11-limiting surface, a 12-second guide groove, a 121-first guide groove, a 122-second guide groove, a 13-fixed rod, a 2-yarn adjusting mechanism, a 21-yarn mouth plate, a 211-yarn through hole, a 212-first groove hole, a 213-second lug, a 214-push block, a 215-sliding groove, a 22-scissor assembly, a 221-first pin shaft, a 222-scissor fixing piece, a 2221-second arc groove, a 2222-protruding piece, a 223-yarn clamping plate, a 2231-first arc groove, a 224-scissor movable piece, a 2241-first lug, a 2242-cutting edge, a 2243-second groove hole, a 225-second pin shaft, a 226-spring plate, a 227-partition plate, a 3-guide assembly, a 31-first guide groove, a 311-groove one, a 312-groove two, a 313-groove three, a 32-first guide rod, a 4-first driving assembly, a 5-first reset assembly, a 6-driving device, a 61-push piece, a 611-connecting rod, a 612-connecting shaft, a 62-second driving assembly, a 63-second driving assembly, a 3-reset knife edge, a C7-guide hole, a C1-C, a C1-reset cylinder, a C1-reset mechanism and C1-C.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
as shown in fig. 2 to 10, the present invention is a tuner, characterized in that: the yarn feeding device comprises a base 1 and more than one group of yarn adjusting mechanisms 2 arranged on the base 1, wherein each group of yarn adjusting mechanisms 2 comprises a yarn mouth plate 21 and a scissor assembly 22 matched with the yarn mouth plate 21, a yarn through hole 211 is formed in the front end of the yarn mouth plate 21, the free end of yarn A passes through the yarn through hole 211 and is clamped and fixed on the scissor assembly 22, the yarn mouth plate 21 is slidably connected on the base 1 and can slide back and forth relative to the base 1, the rear end of the yarn mouth plate 21 is provided with a first slotted hole 212 extending along the front and back direction, the rear end of the scissor assembly 22 is provided with a first pin shaft 221 matched with the first slotted hole 212, the first pin shaft 221 at the rear end of the scissor assembly 22 is matched and connected with the first slotted hole 212 at the rear end of the yarn mouth plate 21, and the front end of the scissor assembly 22 is connected with the base 1 through a guide assembly 3;
the yarn adjusting head further comprises a first driving component 4 connected between the base 1 and the yarn mouth plate 21 and used for pushing the yarn mouth plate 21 to slide forwards relative to the base 1, and a first reset component 5 connected between the base 1 and the yarn mouth plate 21 and used for driving the yarn mouth plate 21 to reset backwards; the first slot 212 on the yarn mouth plate 21 can push the first pin 221 on the scissors assembly 22 to drive the scissors assembly 22 to move forwards and backwards, the scissors assembly 22 can be opened downwards relative to the yarn mouth plate 21 through the first pin 221 under the action of the guide assembly 3 when moving forwards, and the scissors assembly 22 can drive the scissors assembly 22 to be closed upwards relative to the yarn mouth plate 21 and reset under the action of the guide assembly 3 when moving backwards; the thread end further comprises a driving device 6 for driving the scissor assembly 22 to loosen or cut the thread a.
As shown in fig. 2-10, the scissors assembly 22 includes a scissors fixing member 222, a yarn clamping plate 223 fixedly connected to the scissors fixing member 222 and located between the scissors fixing member 222 and the yarn mouth plate 21, and a scissors moving member 224 slidably connected between the scissors fixing member 222 and the yarn clamping plate 223 back and forth; the first pin shaft 221 is fixedly arranged at the rear end of the scissors fixing member 222, and the guide assembly 3 comprises a first guide groove 31 arranged at the front end of the scissors fixing member 222 and a first guide rod 32 fixedly arranged on the base 1 and used for being matched with the first guide groove 31;
the front end of the yarn clamping plate 223 is provided with a first arc-shaped slot 2231 with an upper opening, and the front end of the scissors fixing 222 is provided with a second arc-shaped slot 2221 with an upper opening at a position corresponding to the first arc-shaped slot 2231; the free end of the yarn a passes through the first arc-shaped groove 2231 in the initial state and is fixedly clamped between the two side walls of the yarn clamping plate 223 matched with the scissors movable piece 224;
the rear end of the scissors moving member 224 is provided with a first protruding block 2241 extending downwards, the driving device 6 comprises a pushing member 61 slidably connected to the base 1 and located below the scissors assembly 22, a second driving assembly 62 connected between the pushing member 61 and the base 1 and used for pushing the pushing member 61 to slide, and a second resetting assembly 63 connected between the pushing member 61 and the base 1 and used for driving the pushing member 61 to reset; the pushing member 61 can push the first protrusions 2241 on all the scissors assemblies 22 in the opened state backwards for a certain distance, and then the second reset assembly 63 drives the pushing member 61 to reset, so that the scissors moving member 224 can slide backwards relative to the scissors fixing member 222 to loosen the yarn a; during the resetting process that the scissor assembly 22 is closed upwards relative to the yarn nozzle plate 21, the first arc-shaped groove 2231 and the second arc-shaped groove 2221 on the scissor assembly 22 can hook the yarn A hooked by the knitting needle B back; the base 1 is provided with a limiting surface 11 for limiting the limit position of the backward movement of the scissors moving part 224; the yarn nozzle plate 21 is provided with a second protruding block 213 which extends downwards; the front-most part of the movable scissors member 224 is provided with a cutting edge 2242, when the movable scissors member 224 is in reset, and the first bump 2241 on the movable scissors member 224 touches the limiting surface 11, the movable scissors member 224 stops moving backwards, when the movable scissors member 224 stops moving, the pushing member 61 can push the second bump 213 on the yarn mouth plate 21 backwards for a certain distance, and then the second reset assembly 63 drives the pushing member 61 to reset, so that the fixed scissors member 222 slides backwards relative to the movable scissors member 224 to clamp and cut the yarn a.
As shown in fig. 4 to 9, the first guiding groove 31 preferably includes a first groove 311, a second groove 312, and a third groove 313 that are sequentially connected in an arc transition manner; the first groove 311 is horizontally arranged along the front-rear direction, the second groove 312 is obliquely arranged upwards and backwards, and the third groove 313 is obliquely arranged downwards and backwards; the scissors fixing piece 222 and the yarn clamping plate 223 are fixedly connected through more than two second pin shafts 225; the scissor movable piece 224 is provided with second slots 2243 which are matched with the second pins 225 in number and position and extend along the front-back direction.
As shown in fig. 4-9, preferably, the yarn nozzle plate 21 is provided with a push block 214, the scissor fixing member 222 is provided with a protrusion 2222 located in front of the push block 214 and extending upwards, and when the yarn nozzle plate 21 moves forwards, the push block 214 can push the protrusion 2222 to drive the scissor assembly 22 to move forwards, so that the first guide rod 32 enters the second groove 312 from the first groove 311.
As shown in fig. 2 to 10, the pushing member 61 preferably includes two connection rods 611 provided at both sides of the base 1 and extending in the front-rear direction, and two connection shafts 612 vertically connected between the two connection rods 611; second guide grooves 12 are formed in the side walls of the left side and the right side of the base 1; the second guide groove 12 comprises a first guide groove 121 and a second guide groove 122 which are sequentially connected in an arc transition mode; the first guide groove 121 and the second guide groove 122 are both inclined upwards and backwards, and the inclination of the second guide groove 122 is smaller than that of the first guide groove 121; the left and right ends of the front connecting shaft 612 are respectively connected in the two second guide grooves 12 in a matching manner, the second driving component 62 is a second cylinder arranged on the base 1 and between the rear connecting shaft 612, and the second resetting component 63 is a second tension spring connected between the base 1 and the rear connecting shaft 612.
As shown in fig. 4 to 7, the first driving component 4 is preferably a first cylinder which is arranged above the thread regulating mechanism 2 and is connected between the base 1 and the yarn mouth plate 21 and is used for pushing the yarn mouth plate 21 to slide, and the first reset component 5 is preferably a first tension spring connected between the base 1 and the yarn mouth plate 21.
As shown in fig. 2-9, the scissor assembly 22 preferably further includes a spring 226 interposed between the scissor mount 222 and the yarn clamping plate 223 for maintaining the scissor movable member 224 in a clamped state with the yarn clamping plate 223.
As shown in fig. 2-4, the scissor assembly 22 preferably further comprises a spacer 227 arranged between the two wire adjustment mechanisms 2 for avoiding mutual interference of the components.
As shown in fig. 2 to 3, the thread adjusting head preferably further comprises thread guiding holes 7 which are arranged above the base 1 and the number of which corresponds to the number of the thread adjusting mechanisms 2, for facilitating thread guiding.
Preferably, the yarn nozzle plate 21 is provided with more than two sliding grooves 215 extending along the front-back direction, and the base 1 is provided with a fixing rod 13 which can penetrate through the sliding grooves 215 and is in sliding fit with the sliding grooves 215.
The working principle of the embodiment is as follows: in the initial state, the yarn a sequentially passes through the yarn guide hole 7, the yarn through hole 211 and the first arc-shaped groove 2231 and is clamped in the two side walls between the yarn clamping plate 223 and the scissor movable piece 224, when the yarn needs to be exchanged, the piston rod of the first cylinder extends forwards to push the yarn mouth plate 21 to move forwards, the push block 214 on the yarn mouth plate 21 can push the protruding piece 2222 on the scissor fixing piece 222 and enable the first guide rod 32 to enter the second groove 312 from the first groove 311, namely, the scissor assembly 22 opens downwards for a certain distance relative to the yarn mouth plate 21, then the yarn mouth plate 21 is emptied (namely, the scissor assembly stops slowly for a certain period), finally, the first slotted hole 212 on the yarn mouth plate 21 can push the first pin 221 and enable the first guide rod 32 to enter the third groove 313 from the second groove 312, namely, the scissor assembly 22 opens completely downwards relative to the yarn mouth plate 21, at this time, the knitting needle B on the knitting machine can hook the yarn a between the yarn mouth plate 21 and the scissor assembly 22, when the knitting needle B hooks the yarn A, the piston rod of the second cylinder stretches out to push the pushing piece 61, so that the connecting shaft 612 positioned in front of the pushing piece 61 enters the second guide groove 122 from the first guide groove 121, during the movement of the connecting shaft 612, the connecting shaft 612 can push the first lug 2241 to move, so that the movable scissor piece 224 moves backwards relative to the fixed scissor piece 222 and loosens the yarn A, at the moment, the yarn A can be hooked by the knitting needle B to be knitted, after the knitting of the yarn A is finished, the yarn nozzle plate 21 is driven by the first tension spring to reset, the scissor assembly 22 is reset together, the movement of the movable scissor piece 224 stops when the first lug 2241 touches the limiting surface 11 during the resetting, at the moment, the piston rod of the second cylinder stretches out again, the pushing piece 61 is pushed, so that the connecting shaft 612 positioned in front of the pushing piece 61 enters the second guide groove 122 from the first guide groove 121, during the movement of the connecting shaft 612, the connecting shaft 612 pushes the second bump 213 to move, so that the scissor fixing member 222 moves backward relative to the scissor movable member 224, so that the yarn a is clamped between the scissor movable member 224 and the yarn clamping plate 223 and the yarn a near the end of the knitting needle B is cut off by the cutting edge 2242 on the scissor movable member 224.
While the invention has been illustrated and described with respect to specific embodiments and alternatives thereof, it will be appreciated that various changes and modifications can be made therein without departing from the spirit of the invention. It is, therefore, to be understood that the invention is not to be in any way limited except by the appended claims and their equivalents.

Claims (9)

1. The utility model provides a transfer line head which characterized in that: the yarn feeding device comprises a base (1) and more than one group of yarn adjusting mechanisms (2) arranged on the base (1), wherein each group of yarn adjusting mechanisms (2) comprises a yarn mouth plate (21) and a scissor assembly (22) matched with the yarn mouth plate (21), a yarn through hole (211) is formed in the front end of the yarn mouth plate (21), the free end of a yarn (A) passes through the yarn through hole (211) and is clamped and fixed on the scissor assembly (22), the yarn mouth plate (21) is connected onto the base (1) in a sliding manner and can slide back and forth relative to the base (1), a first slotted hole (212) extending along the front-back direction is formed in the rear end of the yarn mouth plate (21), a first pin shaft (221) matched with the first slotted hole (212) is arranged at the rear end of the scissor assembly (22), the first pin shaft (221) at the rear end of the scissor assembly (22) is matched and connected with the first slotted hole (212) at the rear end of the yarn mouth plate (21), and the front end of the scissor assembly (22) is connected with the base (1) through a guide assembly (3).
The yarn adjusting head further comprises a first driving component (4) connected between the base (1) and the yarn mouth plate (21) and used for pushing the yarn mouth plate (21) to slide forwards relative to the base (1), and a first resetting component (5) connected between the base (1) and the yarn mouth plate (21) and used for driving the yarn mouth plate (21) to reset backwards; the first slotted hole (212) on the yarn mouth plate (21) can push the first pin shaft (221) on the scissors assembly (22) so as to drive the scissors assembly (22) to move forwards and backwards, the scissors assembly (22) can be opened downwards relative to the yarn mouth plate (21) through the first pin shaft (221) under the action of the guide assembly (3) when moving forwards, and the scissors assembly (22) can drive the scissors assembly (22) to be closed upwards relative to the yarn mouth plate (21) and reset under the action of the guide assembly (3) when moving backwards; the thread regulating head also comprises a driving device (6) for driving the scissors assembly (22) to loosen or cut the yarn (A);
the scissors assembly (22) comprises a scissors fixing piece (222), a yarn clamping plate (223) fixedly connected with the scissors fixing piece (222) and positioned between the scissors fixing piece (222) and the yarn mouth plate (21), and a scissors moving piece (224) connected between the scissors fixing piece (222) and the yarn clamping plate (223) in a front-back sliding manner; the first pin shaft (221) is fixedly arranged at the rear end of the scissors fixing piece (222), and the guide assembly (3) comprises a first guide groove (31) arranged at the front end of the scissors fixing piece (222) and a first guide rod (32) fixedly arranged on the base (1) and used for being matched with the first guide groove (31);
the front end part of the yarn clamping plate (223) is provided with a first arc-shaped groove (2231) with an upper opening, and the front end part of the scissors fixing piece (222) is provided with a second arc-shaped groove (2221) with an upper opening at a position corresponding to the first arc-shaped groove (2231); in the initial state, the free end of the yarn (A) passes through the first arc-shaped groove (2231) and then is fixedly clamped between the two side walls of the yarn clamping plate (223) matched with the scissors movable piece (224);
the rear end of the scissors moving part (224) is provided with a first lug (2241) extending downwards, the driving device (6) comprises a pushing part (61) which is connected to the base (1) in a sliding way and is positioned below the scissors assembly (22), a second driving assembly (62) which is connected between the pushing part (61) and the base (1) and is used for pushing the pushing part (61) to slide, and a second resetting assembly (63) which is connected between the pushing part (61) and the base (1) and is used for driving the pushing part (61) to reset; the pushing piece (61) can push the first convex blocks (2241) on all the scissors assemblies (22) in the opened state backwards for a certain distance, and then the second reset assembly (63) drives the pushing piece (61) to reset, so that the scissors moving piece (224) can slide backwards relative to the scissors fixing piece (222) to loosen the yarn (A); in the resetting process that the scissor assembly (22) is closed upwards relative to the yarn mouth plate (21), the first arc-shaped groove (2231) and the second arc-shaped groove (2221) on the scissor assembly (22) can hook back the yarn (A) hooked by the knitting needle (B); a limiting surface (11) for limiting the limit position of the backward movement of the scissor movable piece (224) is arranged on the base (1); the yarn mouth plate (21) is provided with a second lug (213) extending downwards; the front-most part of the scissors moving part (224) is provided with a cutting edge (2242), when the scissors moving part (224) is in reset, a first lug (2241) on the scissors moving part (224) bumps against the limiting surface (11), the scissors moving part (224) stops moving backwards, when the scissors moving part (224) stops moving, the pushing part (61) can push a second lug (213) on the yarn mouth plate (21) backwards for a certain distance, and then the second reset component (63) drives the pushing part (61) to reset, so that the scissors fixing part (222) slides backwards relative to the scissors moving part (224) to clamp and cut the yarn (A).
2. The tuning head of claim 1, wherein: the first guide groove (31) comprises a first groove (311), a second groove (312) and a third groove (313) which are sequentially connected in an arc transition mode; the first groove (311) is horizontally arranged along the front-back direction, the second groove (312) is obliquely arranged upwards and backwards, and the third groove (313) is obliquely arranged downwards and backwards; the scissors fixing piece (222) is fixedly connected with the yarn clamping plate (223) through more than two second pin shafts (225); the scissors moving part (224) is provided with second slotted holes (2243) which are matched with the second pin shafts (225) in number and position and extend along the front-back direction.
3. The tuning head of claim 2, wherein: the yarn mouth board (21) is provided with a push block (214), the scissors fixing part (222) is provided with a protruding part (2222) which is positioned in front of the push block (214) and extends upwards, and when the yarn mouth board (21) moves forwards, the push block (214) can push the protruding part (2222) so as to drive the scissors assembly (22) to move forwards, so that the first guide rod (32) enters the second groove (312) from the first groove (311).
4. The tuning head of claim 1, wherein: the pushing piece (61) comprises two connecting rods (611) which are arranged at the left side and the right side of the base (1) and extend along the front-back direction, and two connecting shafts (612) which are vertically connected between the two connecting rods (611); the side walls of the left side and the right side of the base (1) are provided with second guide grooves (12); the second guide groove (12) comprises a first guide groove (121) and a second guide groove (122) which are sequentially connected in an arc transition mode; the first guide groove (121) and the second guide groove (122) are inclined upwards and backwards, and the inclination of the second guide groove (122) is smaller than that of the first guide groove (121); the left end and the right end of the connecting shaft (612) positioned in front are respectively connected in the two second guide grooves (12) in a matched mode, the second driving assembly (62) is a second cylinder arranged on the base (1) and between the connecting shafts (612) positioned in rear, and the second resetting assembly (63) is a second tension spring connected between the base (1) and the connecting shafts (612) positioned in rear.
5. The tuning head of claim 1, wherein: the first driving component (4) is a first cylinder which is arranged above the yarn adjusting mechanism (2) and connected between the base (1) and the yarn mouth plate (21) and used for pushing the yarn mouth plate (21) to slide, and the first resetting component (5) is a first tension spring connected between the base (1) and the yarn mouth plate (21).
6. The tuning head of claim 1, wherein: the scissors assembly (22) further comprises a spring piece (226) which is clamped between the scissors fixing piece (222) and the yarn clamping plate (223) and used for enabling the scissors moving piece (224) and the yarn clamping plate (223) to keep a clamping state.
7. The tuning head of claim 1, wherein: the scissors assembly (22) further comprises a partition plate (227) which is arranged between the two wire adjusting mechanisms (2) and used for preventing the components from interfering with each other.
8. The tuning head of claim 1, wherein: the yarn adjusting head further comprises yarn guiding holes (7) which are arranged above the base (1) and are corresponding to the yarn adjusting mechanisms (2) in number and are used for guiding yarns conveniently.
9. The tuning head of claim 1, wherein: the yarn mouth plate (21) is provided with more than two sliding grooves (215) extending along the front-back direction, and the base (1) is provided with a fixing rod (13) which can penetrate through the sliding grooves (215) and is in sliding fit with the sliding grooves.
CN201911004986.9A 2019-10-22 2019-10-22 Wire adjusting head Active CN110644127B (en)

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CN105019127A (en) * 2015-07-28 2015-11-04 张家港润山针织机械有限公司 Device for synchronously cutting and paying off yarns in wire adjustment machine
CN106120132A (en) * 2016-08-22 2016-11-16 石狮市宝翔针织机械有限公司 A kind of knitted jacquard circular knitting machine Yarn clamping and cutting performs device
CN208857443U (en) * 2018-09-25 2019-05-14 绍兴艾丽娅纺织机械有限公司 Circular knitting machine line transfer scissors
CN211171098U (en) * 2019-10-22 2020-08-04 泉州全能智控机械研究所有限公司 Wire adjusting head

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2940285A (en) * 1956-10-15 1960-06-14 Wildt Mellor Bromley Ltd Yarn feeding and changing mechanism for circular knitting machines
TW349999B (en) * 1995-03-31 1999-01-11 Sipra Patent Beteiligung A knitting machine and yarn changer
CN2661729Y (en) * 2003-09-23 2004-12-08 典洋针织机械股份有限公司 Color changing head structure of knitting machine
EP1780321A1 (en) * 2005-11-01 2007-05-02 Pai Lung Machinery Mill Co., Ltd. High speed color altering head for single-face circular knitting machines
JP2007146346A (en) * 2005-11-30 2007-06-14 Hakuryu Kikaisho Kofun Yugenkoshi Color-changing device of circular needle loom
JP2007154332A (en) * 2005-12-01 2007-06-21 Hakuryu Kikaisho Kofun Yugenkoshi Color-changing head for high-speed unifacial circular knitting machine
CN101597834A (en) * 2008-06-03 2009-12-09 洪荣豪 The Yarn cutter clamping mechanism of yarn changing apparatus
US7690224B1 (en) * 2008-12-29 2010-04-06 Pai Lung Machinery Mill Co., Ltd. Yarn changing set for color altering heads
CN102191619A (en) * 2010-03-05 2011-09-21 山德霓股份公司 Yarn gripping and cutting device, particularly for striping yarn fingers for knitting machines or the like
KR20110116744A (en) * 2010-04-20 2011-10-26 파이룽 머시너리 밀 코., 엘티디. Circular knitting machine having integrated multiple yarn changing apparatus
CN102912550A (en) * 2012-11-03 2013-02-06 绍兴恒舜数控精密机械科技有限公司 Paying-off mechanism of striping scissors of weft machine
CN105019127A (en) * 2015-07-28 2015-11-04 张家港润山针织机械有限公司 Device for synchronously cutting and paying off yarns in wire adjustment machine
CN106120132A (en) * 2016-08-22 2016-11-16 石狮市宝翔针织机械有限公司 A kind of knitted jacquard circular knitting machine Yarn clamping and cutting performs device
CN208857443U (en) * 2018-09-25 2019-05-14 绍兴艾丽娅纺织机械有限公司 Circular knitting machine line transfer scissors
CN211171098U (en) * 2019-10-22 2020-08-04 泉州全能智控机械研究所有限公司 Wire adjusting head

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