CN105934545A

CN105934545A - Flat knitting machine

Info

Publication number: CN105934545A
Application number: CN201480060538.XA
Authority: CN
Inventors: 王圣之
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-10-06
Filing date: 2014-05-04
Publication date: 2016-09-07
Anticipated expiration: 2034-05-04
Also published as: WO2015048924A1; CN103898671A

Abstract

Disclosed is a flat knitting machine. A grid plate assembly of the flat knitting machine includes: an upper portion cam system in a looping region provided with a looping needle channel D, a loop transfer needle channel C, a loop collection needle channel E and a loop receiving needle channel F. Among the channels, linked emergence and disappearance of a loop transfer cam (18) and a loop collection cam (16, 16') produces function switching. A lower portion cam system is a needle selection region, employs a direct selection/direct jacking working mode, and is provided with two mutually independent needle jack grooves, respectively a looping/loop transfer needle jack groove A and a loop collection/loop receiving needle jack groove B. The needle jack groove A corresponds to a needle selector Aa, and the needle jack groove B corresponds to a needle selector Ba. A selection is made using the needle selector Aa or Ba such that a selected needle selection piece enters the needle jack groove A or the needle jack groove B to participate in jacking, directly pushing a knitting needle to enter a needle guide channel at the upper portion of the grid plate so as to fulfil the corresponding function.

Description

Flat knitting machine

The invention relates to a flat knitting machine, which mainly comprises a grid plate component, a needle bed component, a needle selector component and a roller component of the flat knitting machine.

The flat knitting machine is a knitting machine requiring high stability and high precision operation, and is widely applied in the field of knitting production. The existing flat knitting machine can be roughly divided into a multi-section multi-stage needle selecting system, a single-section multi-stage needle selecting system and a straight selection straight needle jack system according to a needle selecting mode, and the mechanical part of the flat knitting machine mainly comprises a grid plate triangular system, a needle bed component, a needle selector, a roller, a corresponding control system component and a yarn feeding system component. The grid plate triangle system is carried on a headstock which reciprocates and moves in parallel along the needle bed, the working surface of the grid plate triangle system is parallel to the working surface of the needle bed, and the grid plate triangle system and the needle bed component are used for cooperatively knitting. The needle selector device selects the needle selector in the grid plate area corresponding to the needle selector, so that the knitting needle enters or exits from knitting. The roller assembly is arranged below the needle bed and is used for performing auxiliary drawing on the knitted fabric.

In a flat knitting machine of a multi-stage and single-stage multi-stage needle selection system, a knitting needle, a needle jack, a needle presser and a needle selector are generally arranged in a needle groove on a needle bed. The knitting needle and the needle jack are connected by a connecting butt, and the needle butt arranged on the needle jack acts with a movable cam system to move back and forth along a needle groove of a needle bed so as to interlock the knitting needle for knitting. The needle rod of the needle jack has elasticity, and the needle pressing sheet is arranged on the needle jack and used for transmitting the pressure of the needle pressing triangle to the needle jack so that the butt of the needle jack is pressed into the needle groove along the depth direction of the needle groove to stop or stop work. The needle selection piece is arranged on the needle pressing piece and used for controlling the needle pressing piece to enter a corresponding functional needle pressing position. The fabric pattern is realized by selecting needles by a needle selector to carry out needle selection knitting, and the steps are as follows: the needle selector selects the needle selection piece at the required position, the selected needle selection piece acts with the cam system and pushes the needle pressing piece to enter the corresponding position of the needle pressing cams with different functions, the corresponding needle pressing piece entering the functional position at the triangular direction of the needle pressing is provided with pressure, the needle pressing piece transmits the pressure force to the needle jack, the needle jack is forced to be elastically bent, the butt of the needle jack is submerged into the needle groove to interrupt the work, and the needle pressing cam passes through the back butt of the needle jack to perform elastic knitting.

In a flat knitting machine of a straight needle selection and pushing system, a needle groove on a needle bed is usually provided with a knitting needle and a needle selection sheet, a needle butt of the knitting needle can sink into the needle groove along the depth direction of the needle groove and is separated from a working surface to withdraw from working, and the needle butt can automatically protrude out of the needle groove to work under the pushing of the needle selection sheet. The needle selection sheet of the flat knitting machine directly participates in needle pushing, and the needle pushing sheet and the needle pressing sheet are saved, so that the needle bed has fewer needle bed components, smaller volume, simple structure and higher working speed and is easy to obtain.

However, although the existing flat knitting machines are perfected, there are still many technical problems, which are not beneficial to production or application, such as: the flat knitting machine of the existing multi-stage and single-stage multi-stage needle selection system adopts a multi-stage needle pressing mode according to the requirements of various functions, and is generally provided with a plurality of needle pressing triangles with different functions, namely a non-woven needle pressing triangle, a tucking needle pressing triangle and a tucking needle pressing triangle. When the corresponding function is executed, the corresponding needle pressing triangle needs to continuously apply pressure to the needle jack of the corresponding function so as to restrain the elasticity of the needle jack and enable the butt of the needle jack to be immersed into the needle groove, and the pressing force needs to be repeatedly applied to each row of the same function, so that the resistance and the potential energy caused by restraining the elasticity of the needle jack can be influenced in the corresponding function, and the contact abrasion caused in the repeated force application process can generate negative effects;

in the reciprocating knitting rows of the multi-section multi-stage needle selection system flat knitting machine, the needle selection process of each row needs the switching between a plurality of needle selection cams so as to push the needle selection pieces to different functional positions, the driving force required by the switching is converted by the frictional resistance generated by the magnets adsorbed on the guide rails, the frictional resistance can bring energy consumption and abrasion, and the mechanical failure is easily caused in the switching process;

in the flat knitting machine with multi-stage and single-stage multi-stage needle selection systems, in order to ensure that the needle jack obtains proper elasticity, the size of the needle jack is often required to be designed to be larger, so that the volume of a grid plate and a needle bed which are matched with the needle jack to work is correspondingly increased, and the manufacturing and using cost is correspondingly increased;

when a flat knitting machine with a multi-section multi-stage and single-section multi-stage needle selection system works, the needle selection steps are complex, mechanical faults are easily caused by the transmission of the pressing force of a needle pressing triangle, a needle selecting sheet, a needle pressing sheet and a needle jack and potential energy existing between the needle pressing triangle, the needle selecting sheet, the needle pressing sheet and the needle jack in the needle selection process, and even needle clamping, needle firing and other phenomena can occur;

in the needle turning action of the existing multi-section multi-stage needle selection system flat knitting machine, a receiving empty needle without an opened latch occasionally enters a loop expanding sheet of a transfer needle, and under the condition, the latch which is pushed away by a coil originally cannot be reliably opened due to factors such as mechanical errors and the like, so that the coil cannot enter a needle hook and is separated from the needle, the phenomenon of needle turning and missing is caused, the quality of a fabric is influenced, and even the fabric is scrapped;

in the flat knitting machine with the multi-section multi-stage needle selection system, the needle selection blades mechanically swing under the control of a magnetic field to realize needle selection, so that the phenomenon of clamping stagnation of the needle selection blades is easily caused by the influence of flying cotton and self mechanical factors, and the needle selection speed is limited due to the phase stagnation of the swing frequency of the blades. The multi-knife needle selector has higher failure probability, more serious abrasion and short service life, and the production efficiency and the benefit are influenced;

in the flat knitting machine with a single-section multistage needle selection system, the application of a single-section pulse needle selector overcomes the defects of a needle selection mode, but a needle bed assembly and a cam system are not simplified, the number of conversion parts and needle selection steps is still large, the flat knitting machine is large in size, high in manufacturing and using cost and low in benefit in production and application;

in the flat knitting machine of the straight needle pushing system, although the needle bed components are less, the triangle system saves the needle pressing triangle, but the moving triangle required for function conversion is more, the function triangle is required to move by a separate control component and control drive, the triangle structure and the control component are complicated, and the requirements on the stability and the reliability of the control system and the control component are higher. In order to reduce the position error caused by the moving gap to the triangle installation, the requirement on the manufacturing precision is higher, and the difficulty and the cost are increased to the manufacturing. Furthermore, when the flat knitting machine needle butt of the system sinks along the depth direction of the needle groove, the needle head part of the knitting needle is tilted to be in a suspended state, and the sinking of the needle butt is not stable enough and is not beneficial to the installation of the sinker due to the tilting force generated by the pulling of a knitting fabric coil on the knitting needle and the blocking of the adsorption magnet by accumulated substances when the knitting needle butts sink;

although the high-position roller of the existing flat knitting machine has smaller structure, reduces the manufacturing cost and is more convenient to install, the high-position roller adopts a semi-sliding rotation traction mode and has larger traction rotation friction and damping coefficient, so that the driving power consumption is large and the service life is not high.

In order to solve the technical problems of the existing flat knitting machine, the invention is provided with the following components:

a flat knitting machine adopts a straight needle selection and straight needle straightening mode, and comprises a grid plate assembly, a needle bed assembly, a needle selector assembly and a roller assembly. The needle selection device comprises a grid plate assembly, a needle bed assembly, a needle selection block, a needle selection channel, a needle selection block, a needle selection board, a needle rest channel, a needle selection board assembly, a needle plate assembly, a needle guide plate assembly and a needle guide plate assembly Or enter the needle jack groove of the triangular system to move forward and backward along the needle jack groove, the roller assembly is arranged at the lower side of the needle bed and is driven by power to draw the knitted fabric in a rolling rotation mode.

The technical scheme of the flat knitting machine is as follows:

(1) a grid plate assembly is disclosed, which is miniaturized, simple in structure, reliable in performance and complete in function. Flat-bed machine grid tray subassembly, the opposition is installed in the front and back side of reciprocating sliding headstock, sets up to two upper and lower work areas, and the loop-forming weaving district is constituteed to upper portion triangle system, and lower part triangle system constitutes very needle district, characterized by:

flat-bed machine grid tray subassembly, in the looping zone of upper portion triangle system, be provided with looping guide pin channel, transfer circle guide pin channel, collection circle guide pin channel and connecing circle guide pin channel, above-mentioned each guide pin channel is by transferring to enclose between triangle and the collection circle triangle alternately the play and sink conversion and constitute through raising the pole linkage each other: the transfer cam is immersed into the base plate and the tucking cam is tilted out of the base plate to form a looping needle channel and a tucking needle channel; the tucking cam is sunk into the base plate, and the transfer cam is tilted out of the base plate to form a transfer needle channel and a receiving needle channel. In the process of interrupting or withdrawing the knitting needle in the knitting process, a single-stage holding type needle pressing method is adopted, a tucking cam is matched with a needle pressing cam, the knitting needle which is not knitted is pressed for a single time, the composite knitting needle body is bent after being stressed, and the butt on the composite knitting needle body is sunk into a needle groove and stops;

the flat knitting machine grid plate component adopts a direct selection straight supporting mode in a lower part triangular system supporting region, and is provided with two independent supporting needle grooves which are a looping/loop-moving supporting needle groove and a loop-collecting/loop-connecting supporting needle groove respectively. The loop forming/loop transferring needle jack groove corresponds to a loop forming/loop transferring needle selector, the tucking/loop connecting needle jack groove corresponds to a tucking/loop connecting needle selector, the selected needle selection piece enters the corresponding needle lifting groove through the selection of the needle selector, and the knitting needle is directly pushed to enter the needle guide channel at the upper part of the grid plate to complete the corresponding knitting function;

(2) the needle bed component comprises a bed, needle bed inserting pieces, gaskets, tooth pieces, filling and supporting pieces, sinkers, needle selecting pieces and a composite needle consisting of latch needles, heel pieces and elastic buckle springs, and is characterized in that:

the flat knitting machine needle bed component is opposite to the lower side of the grid plate. The needle bed assembly is provided with a plurality of adjacent needle grooves and looping tooth mouths which are transversely arranged, a composite needle and a needle selection piece which can move forward and backward and correspond to the grid plate functional area are arranged in the needle grooves, the composite needle corresponds to the looping area of the grid plate, and the needle selection piece corresponds to the needle lifting area of the grid plate. The composite needle and the butt of the needle selecting sheet of the flat knitting machine can move in a protruding (state) or sinking (state) along the depth direction of the needle groove, and the composite needle and the butt of the needle selecting sheet are in a knitting (acting) state when protruding and in a resting state when sinking.

In the flat knitting machine needle bed component, the sinker is movably arranged at one side of the needle groove and the tooth piece, and the sinker auxiliary needle bed is not needed, so that the miniaturization of the needle bed is realized, and the function expansion of multiple needle beds is facilitated. The composite needle consists of a latch needle, a heel piece and an elastic buckle spring, the latch needle is connected with the heel piece through a connecting heel, the elastic buckle spring is arranged in a groove formed in the heel piece, an elastic convex surface of the elastic buckle spring is abutted against the connecting heel of the latch needle, and the composite needle can keep stable buckling state under the elastic force action of the elastic buckle spring. When the heel piece is acted by external force to reach a set value, the compound needle can be bent in a limited way in a curved surface taking the connecting heel as the center of a rotating circle, the buckling state is converted into the bending state, the stability of the state is kept, and the stable characteristic of the self-holding state of the compound needle avoids the problem that the elastic needle jack needs to be repeatedly forced to control the rebound of the elastic needle jack, so that the corresponding control is simplified;

in the compound needle of the flat knitting machine, the connecting needle tongue opening assisting salient points are arranged at the position of the latch needle widening piece and the corresponding needle body, the distance between the two opposite opening assisting salient points is narrow, the distance can only pass through the needle hook of the latch needle but can not pass through the wider needle tongue, when the needle is turned, the needle hook of the latch needle correspondingly enters the opening assisting salient points into the widening piece, if the needle tongue enters the widening piece together, the opening assisting points are relatively cut between the needle hook and the needle tongue, and along with the rising of the transfer needle, the opening assisting salient points can push the needle tongue open, so that a coil on the transfer needle falls into the connecting needle hook, and the phenomenon of needle turning and needle missing easily generated in the link is reduced and even avoided;

(3) the utility model discloses a select needle frequency height, job stabilization, little, the long-lived magnetic pulsation single section needle selector subassembly of wearing and tearing, including selecting the needle ware, supplementary magnetism guide pin part and fixed part, characterized by:

the needle selector assembly of the flat knitting machine adopts a pulse magnetic release static needle selection mode to realize non-power consumption static selection of knitting needles. The needle selector is carried and fixed at the bottom of the grid plate, an E-shaped magnetizer assembly is arranged in a cavity of a shell of the needle selector, the demagnetization coil is wound on an intermediate body of the E-shaped magnetizer, and one end of the intermediate body is a needle selection port. The E-shaped magnetic conduction assemblies are arranged into two corresponding groups, a permanent magnet and an isolation crystal are arranged between the two groups, and one end of each group forms a magnetic needle guide surface. The bottom side of the needle selector is provided with a magnetic guide pin block opposite to the E-shaped magnetic guide pin surface, and a needle selection channel is formed between the magnetic guide pin surface of the needle selector and the magnetic guide pin block. In a static state, the magnetic strength of the magnetic needle guide surface of the needle selector is approximately equal to the magnetic strength of the magnetic needle guide block. When the needle selector moves along with the grid plate, the needle selector sequentially passes through the needle selecting channel, firstly, the needle selector is attracted by the magnetism of the E-shaped magnetic conduction assembly to move along the guide pin surface, and when the needle selector enters the corresponding area of the needle selecting port of the magnetic guide pin surface and the magnetic guide pin block, the magnetism of the needle selecting port of the E-shaped magnetic conduction assembly and the magnetic field of the magnetic guide pin block simultaneously act on the needle selector. At this time: if the demagnetization coil wound on the intermediate body of the E-shaped magnetizer does not pass through the demagnetization current, the needle selection piece continues to move along the guide pin surface of the E-shaped magnetizer, is guided into the knitting needle groove of the grid plate and enters a knitting state; if the demagnetizing coil wound on the intermediate body of the E-shaped magnetizer obtains a reverse magnetic field current, the magnetism on the needle selection port at one side of the intermediate body is demagnetized due to the application of a reverse magnetic field, the needle selection piece is attracted to the magnetic guide block by the magnetic field of the corresponding magnetic guide block due to the demagnetization of the needle selection port, jumps and is sunk into the needle groove to be stopped under the guidance of the inclined plane of the magnetic guide pin, and the needle selection piece is withdrawn from the working surface.

(4) The roller assembly is in a synchronous rolling traction mode and is characterized in that:

the roller assembly of the flat knitting machine is arranged at the lower side of a needle bed, and a top rotating rod, a middle driving rod and a main rotating rod are arranged on the inner side of the annular barrel-shaped synchronous traction belt in a stacked mode. The two ends of each rotating rod are sleeved in corresponding round holes of the supporting blocks in a penetrating mode to form a rotatable assembly, the main rotating rod sequentially drives the synchronous pulling belt, the middle driving rod and the top rotating rod to rotate synchronously under the driving of the gear box set, the rotating assemblies are installed in a double-group opposite mode, and the braided fabric is pulled through the friction pulling force formed by the opposite synchronous rolling rotation of the braided fabric between the two groups of the braided fabric.

Compared with the prior art in the same field, the flat knitting machine disclosed by the invention has the following beneficial effects:

(1) in the grid plate component, a knitting area adopts a single-stage holding type needle pressing mode to stop knitting needles, needle pressing triangles only carry out single-stage self-service pressing burying on the knitting needles which are not selected, more stages of resilience type needle pressing abrasion is small, conversion and control parts of the needle pressing triangles are omitted, and the triangle system is simple in structure and stable in work. The needle lifting triangle in the needle lifting area is designed as a whole, the structure is simple, the needle lifting surface is smooth, and the phenomena of needle blocking, needle striking and the like can not occur in the needle lifting process. The flat knitting machine has the advantages of small grid plate volume, low failure rate, simple control and low manufacturing cost;

(2) in the needle bed component of the flat knitting machine, the needle pressing piece and the elastic needle jack piece are omitted, the elastic abrasion in the working process is avoided, the sinker is convenient to install, the butt is stably immersed, and in the needle bed component of the flat knitting machine, the sinker is directly installed in the needle groove, so that the structure of the needle bed becomes compact and miniaturized, and the adaptability to the function expansion and control of multiple needle beds is improved. The needle bed component adopts a direct selection straight jack mode and has a bendable self-retaining composite knitting needle, the needle bed has few working parts, the conversion step is omitted, the control is simplified, the work is stable, and the manufacturing cost and the use cost can be reduced. The movable parts in the needle bed groove avoid adopting elastic parts, reduce the abrasion phenomenon caused by elasticity, and the easily abraded parts mostly adopt replaceable parts, so that the maintainability is strong, and the service life of the needle bed is prolonged;

(3) in the needle selector assembly, the movement distance of the selector is short when the needle selection tracks jump, and the magnetic potential in the needle selection process directly acts on the selector without transduction, so that high needle selection frequency and needle selection precision can be obtained. The plane contact resistance and abrasion of the needle selection sheet and the isolation quartz are small, the needle selector can have longer service life, and the phenomenon that the mechanical needle selection is easy to cause clamping stagnation is avoided. The needle selection mode is static by adopting pulse magnetic release, the structure is simple, the abrasion is small, the needle selection speed is high, the power consumption is small, the service life is long, the mechanical noise is low, the work is reliable, and the knitting efficiency can be improved;

(4) in the roller component, a synchronous rolling type rotating traction structure is adopted, the rotation is flexible and stable, the driving power consumption is low, the abrasion and damping coefficient is low, and the service life is long.

FIG. 1 is a schematic diagram of the grid plate structure of the flat knitting machine of the present invention;

FIGS. 2 (a) and (b) are schematic diagrams of the grid plate structure and the knitting stitches of the flat knitting machine of the present invention;

FIG. 3 is a schematic structural view of a plate portion substrate of the flat knitting machine of the present invention;

FIGS. 4 (a), (b) are schematic views of the triangular supports of the grid plate part of the flat knitting machine of the present invention;

FIG. 5 is a structural schematic view of a needle bed assembly of the flat knitting machine of the present invention;

FIG. 6 is a schematic view of a bed in the needle bed assembly of the flat knitting machine of the present invention;

FIG. 7 is a schematic view of a tooth plate in a needle bed assembly of the flat knitting machine of the present invention;

FIG. 8 is a schematic view of a plug in a needle bed assembly of the flat knitting machine of the present invention;

FIG. 9 is a schematic view of a sinker in a needle bed assembly of the flat knitting machine of the present invention;

FIG. 10 is a schematic view of a pressing plate in the needle bed assembly of the flat knitting machine of the present invention;

FIG. 11 is a schematic view of a needle selection plate in the needle bed assembly of the flat knitting machine of the present invention;

FIG. 12 is a schematic view of a spacer in a needle bed assembly of the flat knitting machine of the present invention;

FIGS. 13 (a), (b) are schematic views showing the structure of the composite knitting needle in the needle bed assembly of the flat knitting machine of the present invention;

FIGS. 14 (a), (b) are schematic views of a seam in knitting by the weft knitting machine of the present invention;

FIG. 15 is a schematic view of a needle groove insert in a needle bed assembly of the flat knitting machine of the present invention;

fig. 16 (a), (b) and (c) are schematic structural views of a selector assembly of the weft knitting machine of the present invention;

FIG. 17 is an external view schematically showing a needle selector of the needle selector assembly of the weft knitting machine according to the present invention;

FIG. 18 is a schematic top view of a needle guide bottom block in the needle selector assembly of the weft knitting machine of the present invention;

FIG. 19 is a side view and an assembly view of a needle selector assembly of the weft knitting machine according to the present invention;

FIGS. 20 (a) and (b) are schematic views showing the structure and appearance of the middle needle selector of the double system of the weft knitting machine according to the present invention;

FIGS. 21 (a) and (b) are schematic diagrams of middle guide pin bottom blocks of the double-system needle selector of the flat knitting machine of the present invention;

fig. 22 (a), (b), and (c) are schematic structural views of the roller assembly of the weft knitting machine of the present invention.

The implementation and function of the present invention will be described in detail below with reference to the accompanying drawings.

(1) Grid plate component of flat knitting machine

Fig. 1 shows a grid plate assembly of a flat knitting machine of the present invention, comprising a base plate 10, and a cam system mounted on the base plate, which is respectively provided with a fixed needle-returning cam 11, 11 ', an upper needle-protecting cam 12, 12', a needle-pressing cam 15, 15 ', a loop-transferring and guiding cam 17, a loop-connecting limit cam 19, an intermediate limit cam 110, an intermediate needle-returning cam 111, a lower needle-protecting cam 112, 112', a lower reset cam 113, 113 ', a synchronous reset cam 114, 114', a needle-pushing cam 115, a loop-connecting needle-pushing cam 117, an intermediate reset cam 118, and a movable yarn-bending cam 13, 13 ', a yarn-bending limit cam 14, 14', a loop-collecting cam 16, 16', a loop-transferring cam 18, a loop-connecting cam 116, 116'.

Fig. 2 (a), (b) show a single system cam system of the flat knitting machine of the present invention, which is provided with two functional areas, the upper part is a looping area, and the lower part is a needle selection area:

in the upper portion looping region, a loop-moving guide pin channel C, a looping guide pin channel D, a loop-collecting guide pin channel E and a connecting loop guide pin channel F are respectively arranged. The transfer cam 18 and the tucking cams 16 and 16' are mutually and alternately connected through the tilting rod linkage among the channels to realize conversion. When the transfer cam 18 protrudes out of the substrate, the tucking cams 16, 16' retreat into the substrate, and the needle lifting surface 18C of the transfer cam 18 and the transfer guide cam 17 form a transfer needle channel C. Meanwhile, the delayed lower needle surface 18b, the limiting surface 19a of the connecting ring limiting triangle 19 and the limiting surface 15c of the pressing and burying triangle 15 form a connecting ring guide needle channel F. When the tucking cams 16, 16' are projected from the substrate, the transfer cam 18 retreats into the substrate, and the tucking guide groove channel E is formed by the connecting spacing cam 19, the needle pushing surface 16c of the tucking cam 16 and the spacing surface 17a of the transfer guide cam 17, and the upper part of the connecting spacing cam 19 forms the looping guide groove channel D.

In fig. 2 (a) and (b), a needle returning groove is formed by a needle returning triangle 11 and a needle protecting triangle 12, and is used for returning the needle after the yarn is bent by a yarn bending needle, so that the knitted fabric can descend conveniently. And a groove 12a is arranged to prevent the phenomenon of pulling damage to the coil when the needle is dropped due to undersize of the coil when the needle is lifted and turned over.

In fig. 2 (a) and (b), the two ends of the sinking cam 13 are provided with sinking angles 13a and 13b with different widths, and the requirement of different fabrics can be met by exchanging and installing. The sinking limit cams 14, 14 'in the drawing (a) and (b) 2 move together with the sinking cams 13, 13' for limiting the sinking depth of the sinking needle and controlling the consistency of the loop formation.

In fig. 2 (a) and (b), the needle pressing cam 15 is a single-stage needle pressing cam, and is provided with a needle pressing inclined surface 15a, a needle protecting inclined surface 15b, and a needle inserting limit surface 15 c. The needle pressing and burying cam 15 is used for pressing the passing butt into the needle groove along the needle pressing inclined plane 15a thereof, so that the knitting needle is separated from the working surface and enters the next needle track area. In the function of loop-joining, the needle pressing cams 15, 15' also have the function of limiting the lower needle of the loop-joining needle. The needle pressing inclined plane 15a can be used as an independent needle pressing triangle, a needle pressing spring is arranged on the back side of the needle pressing inclined plane, protective needle pressing is carried out under the pressure of the spring, when a butt cannot be pressed into a needle groove due to certain factors, the needle pressing triangle 15a can be jacked up to avoid damage of a knitting needle, and the needle pressing triangle 15a can be in one-way linkage with the tucking triangle 16 when being jacked up.

In fig. 2 (a) and (b), the tucking cam 16 is used for pushing the knitting needle to the tucking position from the needle jack surface 16c, a needle protection inclined surface 16a is arranged, a reset guide groove 16b is arranged on the needle protection inclined surface 16a, and a groove inclined surface 16d of the guide groove 16b is used for guiding the passing butt to pass along the inclined surface 15a of the pressing and burying needle cam 15, so that the reliability of the pressing and burying needle is ensured, and the passing butt is prevented from being damaged due to displacement and pressure.

In fig. 2 (a) and (b), the transfer guide cam 17 and the transfer cam 18 form a transfer groove C. When knitting, the guide cam 17 is used as a reset guide cam of a knitting needle, and a lower needle initial cutting inclined plane 17a is arranged on a guide surface, so that the cutting angle is reduced, and the abrasion and the resistance of the lower needle during initial cutting can be reduced.

In fig. 2 (a), (b), the transfer cam 18, together with the transfer guide cam 17, forms a transfer groove C which serves to push the transfer needle to the transfer height. The transfer cam 18 is provided with an installation groove 18a of the stitch cam 19 to install the stitch cam 19. The lower needle surface 18b of the receiving needle delay is arranged, and the function is as follows: when empty needle is used for loop connecting, part of the latch and the needle hook enter the loop expanding piece of the transfer needle together, if the transfer needle is directly descended after loop connecting, the wide part of the latch can be greatly supported when passing through the loop expanding piece of the transfer needle, the service life of a knitting needle is shortened, the delayed needle descending of the lower needle surface 18b is delayed through the loop connecting needle, the thin part of the latch can pass through the loop expanding piece of the transfer needle, and the abrasion between the latch and the loop expanding piece of the transfer needle is reduced.

In fig. 2 (a), (b), the connecting ring limit cam 19 is provided with a connecting ring limit surface 19a for limiting the ascending and floating of the connecting ring needle, and a needle protection surface 19b is used for protecting the knitting needle and preventing needle striking under special conditions;

the lower part is a needle selection area, a single-stage straight selection straight support working mode is adopted, two independent needle supporting grooves are arranged, a loop forming/loop moving needle supporting groove A is formed by a needle supporting triangle 115 and synchronous needle supporting triangles 114 and 114 ', a loop connecting/loop collecting needle supporting groove B is formed by a loop connecting needle supporting triangle 117, left and right loop connecting triangles 116 and 116 ' and the needle supporting triangle 115, the needle supporting groove A corresponds to an Aa needle selector, and the needle supporting groove B corresponds to a Ba needle selector, wherein the groove B has two states which are respectively in left and right loop connecting/loop collecting states, and the left and right loop connecting triangles 116 and 116 ' are linked through tilting rods to realize the conversion of left and right loop connecting or loop collecting functions.

In fig. 2 (a) and (b), the lower needle guard cam 112 is provided with a needle guard slope 112a, guides and resets the selector higher than the needle bed along the slope, and is restricted by a needle guard convex surface 112c of the needle guard cam 112. The needle protection convex surface 112c and the needle guide surface of the needle selector are positioned on the same plane, so that the scraping collision between the needle selector and the needle selector can be avoided. The other reset surface 112b of the needle selecting device has the function of enabling the needle selecting sheet to be reset to the static position, and is beneficial to reducing flying cotton fibers falling into the needle groove.

In fig. 2 (a) and (b), the lower reset cam 113 is used to reset the selector to the needle selection position, and the reset cam 113a is provided to reset the selector, thereby avoiding the influence of the contact between the selector and the synchronous reset cam 114 on the needle selection.

In fig. 2 (a) and (b), the synchronous reset cam 114, the lower needle surface 114a of which is synchronously engaged with the lower needle surfaces of the stitch cam 13 and the loop transferring and guiding cam 17, shares the resistance generated during the stitch and reduces the abrasion of the stitch cam 13.

In fig. 2 (a) and (b), the stitch cam 115 is for pushing the selected selector 215 to the stitch forming position along the needle jack surface 115 d. The preliminary cut slope 115a is provided to reduce the preliminary cut wear and resistance of the selector jack. The inner bottom of the needle selector is provided with a passing inclined plane 115b of the needle selector, one side of the inclined plane 115b is provided with a needle selector resetting needle protection inclined plane 115c, and the purpose is to avoid the damage caused by the collision of the needle selector with the edge of the triangle 115 due to the displacement when the needle selector is reset along the slider resetting inclined plane 310a of the needle selector. The needle pushing surface 115d and the lower needle surface 115e of the needle pushing cam 115 are integrated streamline needle guide surfaces, and the phenomena of needle clamping, needle striking and the like cannot occur in the needle pushing process.

In fig. 2 (a), (b), the stitch cam 116 is used to push the stitch needle to the stitch position. The needle protection slopes 116a and 116b are provided to protect the selector from the occurrence of a striker under a special condition.

In fig. 2 (a) and (b), the receiving jack cam 117 is provided with a jack initial cut buffer slope 117a for reducing initial cut abrasion and resistance, and for pushing the selected selector to the connecting position of the receiving cam 116.

Fig. 3 shows a schematic structural view of the base plate 10 of the flat knitting machine of the present invention. The stitch cam mounting frames 10a, 10a ', the stitch transfer cam and stitch collecting cam mounting frames 10b, the stitch cam mounting frames 10c, 10c ', the selector mounting frames 10d, 10e ', 10f, 10g, 10h are respectively arranged.

Fig. 4 (a) is a schematic view showing a cam mounting bracket 119 of the weft knitting machine of the present invention. Fig. 4 (b) is a schematic side view thereof. Fig. 4 (a) shows the mounting relationship between the transfer cam and the tucking cam, and 119a, 119a ', 119e, and 119f are fixing screw holes, 119b, and 119 b' are moving mounting holes of the tucking cams 16 and 16', 119c is a moving mounting hole of the cam 18, 119d is a moving stopper screw hole of the cam 18, and 119 g' are sliding mounting holes of the elastic tucking cam 15 a.

(2) Needle bed assembly of flat knitting machine

Figure 5 shows a needle bed assembly of the flat knitting machine of the invention. The needle bed comprises a bed 20, gasket mounting steel wires 21 and 218, a looping steel wire 22, tooth connecting steel wires 21 and 24, a tooth 23, sinker limiting steel wires 25 and 28, a filling and supporting sheet 26, a sinker 27, pressing plates 29 and 214, a composite needle consisting of a latch needle 210, a heel sheet 211 and an elastic buckle spring 212, a needle bed insert 213, a needle selection sheet 215, needle selection sheet limiting steel wires 216 and 217, a gasket 219, an insert fixing steel wire 220 and a limiting steel wire 221.

Fig. 6 shows a schematic view of the bed 20 of the flat knitting machine of the present invention. The mounting grooves 20a and 20b provided with the spacers 219 are provided with a bending movement concave 20c of the butt 211, a stopper wire groove 20d, and a movement gap concave 20e of the selector.

Fig. 7 shows a tooth piece 23 of the weft knitting machine of the present invention, in which a face 23c of a looped tooth is protruded to a side of a fixed end face thereof, and mounting fixing holes 23a, 23d, a looped tooth 23c, and a looped wire mounting hole 23b are provided.

Fig. 8 shows a tucker blade 26 of the weft knitting machine of the present invention, which functions to define an installation space of a sinker. Open mounting holes 26a, 26b and fixing holes 26c are provided. The plug piece can be rotated when the sinker is disassembled and assembled, and the sinker is convenient to install or replace.

Fig. 9 shows a sinker 27 of the weft knitting machine of the present invention movably mounted in a space provided by the tuck-in blade, the tooth blade, and the tuck-in blade. A sinking hook tooth 27a, a concave surface 27b, movement position restricting holes 27c, 27d and a butt 27e are provided. The sinker 27 is used for preventing the stitch on the knitting needle from floating along with the knitting needle to influence the stitch shedding when the knitting needle rises, and the sinker butt 27e is pushed by the hook tooth 27a to move to extend out of the tooth plate to hook the stitch, so that the stitch is prevented from rising and floating.

In fig. 9, the sinker 27 has arc-shaped movement limiting holes 27c and 27d, and the sinker 27 moves along the limiting holes 27c and 27d, so that the hook teeth 27a and the looping teeth 23c form a fixed tangent point in the process of reaching the loop hooking position, and the loop is not clamped in the process of controlling the loop to float.

Fig. 10 (a), (b) show the presser plates 29 and 214 of the flat knitting machine of the present invention, respectively, provided with magnet mounting grooves in which the plastic magnets 29a and 214a are mounted to hold the knitting needles to form frictional damping to stabilize the knitting needles and the selector blades against sliding of the knitting needles.

Fig. 11 shows a selector 215 of the weft knitting machine according to the present invention, which is provided with a needle raising slope 215a, a needle jack engagement groove 215b, a clearance slope 215c, a butt 215d, a selector butt 215e, a magnetic isolation hole 215f, and a convex widening surface 215 g. The clearance slope 215c of the selector jack 215 can be kept stable when not selected by obtaining the attraction force of the hold-down magnet 214 a. The magnetic isolation hole 215f functions to prevent the magnetic field conduction of the slider from affecting the selector magnet. The convex supporting surface 215g moves in a path of pushing out and sinking into a space of the selector during needle jack, so that the influence of accumulated dirt on the needle selection is reduced.

Fig. 12 shows a spacer 219 of the flat knitting machine of the present invention, provided with fixing arcs 219a, 219b, and with a needle protection concave 219c, which can define an accurate installation space for the knitting needle 210 due to the relative uniformity of the position of the spacer 219 in the needle groove.

Fig. 13 (a), (b) show the composition of the composite knitting needle of the flat knitting machine of the present invention and two states that it assumes, respectively. The latch needle 210, the heel piece 211 and the elastic buckle spring 212 form a composite needle, the latch needle 210 is provided with connecting grooves 210b and 210c with the heel piece and is provided with buckling salient points 210d with the heel piece, and the expanded circle piece of the latch needle 210 and the needle body part corresponding to the expanded circle piece are provided with connecting ring latch opening assisting salient points 210a and 210 a'. The heel piece 211 is provided with a mounting frame 211b of the elastic buckle spring 212, a piece heel 211c, a reset assisting surface 211d and a connecting heel 211 e. The elastic buckle spring 212 has an elastic protrusion 212a and an elastic operation surface 212 b.

Fig. 13 (a) shows the fastening state, the heel 211 is connected with the latch needle 210 through the connecting heel 211e, the elastic buckle spring 212 is arranged in the groove 211b provided by the heel 211, the elastic convex surface 212a thereof is abutted against the connecting heel 210d of the latch needle, and the composite needle can keep the fastening state stable under the elastic force of the elastic buckle spring 212. The enlarged part of the figure shows the simulated state that the widening sheet of the latch needle 210 and the corresponding needle body part are provided with the joint latch opening-assisting salient points 210a and 210 a', and the distance between the two points can pass through the hook 210e of the joint needle, and the latch 210f can be prevented from passing through.

Fig. 13 (b) shows the bending state of the composite needle, when the butt 211c of the butt 211 is pressed by the needle pressing cam, the butt 211 can perform limited bending rotation in the curved surface with the connecting butt 211e as the rotation center, the composite needle is changed from the buckling state to the bending state, when the bending degree reaches the state that the bending self-service inclined surface (211 f) is overlapped with the bending self-service inclined surface (210 g), the butt (211) moves along the bending self-service inclined surface (210 g) under the elastic action of the elastic buckling spring (212) and performs self-service bending along the self-service inclined surface (210 g), and when the bending degree enables the limiting butt (211 a) of the butt to reach the buckling convex surface (210 d) of the knitting needle, the bending degree is limited, and the bending degree can enable the butt 211 to sink into the needle groove to exit the work. In this process, the elastic buckle spring 212 can move elastically along the guiding surface of the heel plate mounting frame under the pushing force of the connecting heel 210 d.

Fig. 14 (a) and (b) are diagrams illustrating the weft knitting machine according to the present invention in which the latch 210f is pushed open when the transfer needle moves upward, and the stitch x1 on the transfer needle drops into the hook 210e of the receiving needle.

Fig. 15 shows a needle bed insert 213 of a weft knitting machine according to the present invention, which is provided with mounting wire holes 213a and 213b of a tooth 23, sinker moving guide wire holes 213c and 213d, a sinker mounting concave surface 213e, a spacer fixing wire hole 213f, selector stopper limiting wire holes 213g and 213h, a mounting limiting wire notch 213i, a needle taking groove 213j, and a dust storage frame 213 k.

(3) Needle selector assembly of flat knitting machine

Fig. 16 (a) shows a schematic structural view of a selector assembly of the weft knitting machine according to the present invention. Respectively comprises the following steps: the needle selector comprises a needle selector shell 30, a permanent magnet 31, a permanent magnet 32, a magnetism increasing permanent magnet 313, a cushion supporting block 33, E-shaped magnetizer assemblies 34, 35 and 36, a demagnetization coil 37, an isolation crystal 38, a fixed cushion block 39, a guide pin block 310, guide pin magnetic steel 311a (b) and a magnetism increasing permanent magnet 312. In the figure, the needle guide block 310 is provided with a reset inclined plane 310a, an auxiliary reset inclined plane 310b, a magnetic needle guide inclined plane 310c and a needle guide release plane 310d, respectively. The slider 310 further has slider magnetic steels 311a and 311b and a magnetism-increasing permanent magnet 312. In the needle selector assembly, the intermediate magnetizer 35 of the E-shaped magnetizer assembly can block the original conducted magnetic lines under the action of the reverse magnetic field 3x generated when the demagnetization coil 37 has current, so that the needle selection port 35a is demagnetized, and the magnetizers 34 and 36 provide a release loop of the demagnetization magnetic field for the intermediate magnetizer 35.

Fig. 16 (a) shows the needle selection principle of the selector assembly of the flat knitting machine of the present invention, in a static state, the conduction magnetic fields of the E-type magnetizer assemblies 34, 35, 36 are approximately equal to the resultant magnetic fields of the guide pin magnetic steels 311a, 311b on the slider, the needle selection port 35a corresponds to the guide pin magnetic steels 311a, 311b, when selecting a needle, the selector moves along with the grid plate, the selector 215 is first attracted by the magnetic force of the E-type magnetizer assembly and moves relative to the selector assembly along the magnetic surface thereof, when entering the region where the needle selection port 35a corresponds to the guide pin magnetic steels 311a, 311b, the magnetic force of the needle selection port 35a of the E-type magnetizer assembly and the magnetic field of the magnetic guide pin magnetic block 310 act on the selector 215 at the same time, at this time: if the demagnetization coil 37 has no demagnetization current, the selector 215 continues to move along the guide pin surface of the E-shaped magnetizer (3 t stitch in the figure), and is guided to enter the knitting needle groove of the grid plate for knitting; when the demagnetizing coil 37 obtains a reverse magnetic field current, the magnetism of the needle selection port 35a on the intermediate body side is lost due to the application of the reverse magnetic field (shown as 3x in the figure), and the selector 215 jumps due to the loss of magnetism of the needle selection port 35a and is attracted by the magnetic field of the corresponding magnetic slider 310, and stops due to the fact that the magnetic slider is guided by the magnetic slider inclined plane 310c to sink into the needle groove (3 m needle trace in the figure).

According to the needle selector assembly of the flat knitting machine, the moving distance of the needle selector is short when the needle selecting tracks jump, and the magnetic potential in the needle selecting process directly acts on the needle selector without transduction, so that high needle selecting frequency and needle selecting precision can be obtained. The contact resistance and abrasion of the needle selection piece (215) and the isolation quartz (38) of the guide surface are small, so that the needle selector can obtain longer service life, and the phenomenon that the mechanical needle selection is easy to cause clamping stagnation is avoided. In the current demagnetization loop of the needle selector E-shaped magnetizer assembly, a constant magnetic indirect conduction magnetizing mode for the intermediate needle selection port is adopted, and a magnetic leakage loop of a reverse magnetic field is arranged, so that an ideal demagnetization effect can be obtained, and needle selection is stable. Because the mode of powerless static selection of the working needle is adopted, the needle selection power consumption is reduced. The point knot type release is adopted when the needle selector is separated from the magnetic area of the needle selector, so that the attraction of the magnetic steel of the needle selector to the separation of the needle selector can be reduced, and the operation power consumption is reduced. In accidental or unexpected power failure events, the needle selection mode of the flat knitting machine can better protect the field and support the linkage recovery of the working procedures.

Fig. 16 (b) shows an assembly schematic diagram of the E-type magnetizer assembly in the needle selector assembly of the flat knitting machine of the present invention, the E-type magnetizer assemblies 34, 35, 36 and the demagnetization coil 37 are provided with counterparts 34 ', 35', 36 ', 37', respectively, the demagnetization coil 37 is wound on the intermediate body 35 of the E-type magnetizer to constitute a magnetic conductive loop assembly, permanent magnets 31, 32, a cushion supporting block 33 and an isolating quartz 38 are respectively arranged between the corresponding two groups, the permanent magnet 31 is arranged between 34 ' and 34 ', the permanent magnet 32 is arranged between 36 ' and 36 ', a magnetism-increasing permanent magnet 313 is arranged between a middle magnetizer 35 and a corresponding magnetizer 35 ', one end of each of the E-shaped magnetizer assemblies 34, 35 and 36 is provided with a magnetic guide surface which is conducted by the permanent magnets 31 and 32 and the magnetism-increasing permanent magnet 313, the guide surface 35a of the intermediate body 35 of the E-shaped magnetizer assembly is a needle selection port, and the magnetic circuit assembly is arranged in the cavity of the needle selector shell 30.

Fig. 16 (c) shows another assembly diagram of the E-shaped magnetizer assembly of the flat knitting machine according to the present invention, in which the permanent magnet 31 and the permanent magnet 32 are installed at one end of the E-shaped magnetizer assembly, the magnetic conductive needle surface is formed at the other end of the magnetic conductors 34, 35, and 36, and the permanent magnet 31 is used as a demagnetization loop of the intermediate magnetizer 35 to reduce the demagnetization power of the magnetizer 35.

Fig. 17 is an external view schematically showing a selector of the weft knitting machine of the present invention.

Fig. 18 shows a schematic diagram of a slider of a selector assembly of the flat knitting machine of the present invention, and different states of the mounting positions of the slider magnetic steels 311a and 311b and the magnetizing permanent magnet 312 and two assembling positions of the reset inclined plane 310 a. In the figure, the guide needle bottom block is provided with installation grooves for installing guide needle magnetic steels 311a and 311b, the guide needle magnetic steels 311a and 311b are installed in the grooves to form a magnetic guide needle surface 310c, and a magnetism increasing permanent magnet (3) 312 is installed at the lower parts of the guide needle magnetic steels 311a and 311b corresponding to the needle selection opening 35a to increase the magnetic field intensity of the needle selection opening area.

Fig. 19 shows a side view and an installation schematic view of the needle selector assembly of the weft knitting machine according to the present invention, and a screw 314 is sequentially inserted through the needle selector housing 30, the hollow pin 315, the base plate 10, and the fixing pad 39 and fixed to the base plate 10 through a threaded hole of the needle guide 310.

Fig. 20 (a) and (b) show a two-system intermediate selector 316 of the weft knitting machine of the present invention. Fig. 20 (a) is a schematic view of the structure thereof, and fig. 20 (b) is a schematic view of the appearance thereof.

FIGS. 21 (a), (b) show a dual system middle lead block 317 of the flat knitting machine of the present invention. Fig. 21 (a) is a side view thereof, and fig. 21 (b) is a top view thereof.

(4) Roller assembly of flat knitting machine

Fig. 22 (a) is a schematic axial structure diagram of the roller assembly of the weft knitting machine according to the present invention. Inside the ring-shaped synchronous pulling belt 40, a top rotating rod 41, a middle driving rod 42 and a main rotating rod 43 are arranged in a stacked manner. The two ends of each rotating rod are sleeved in the corresponding round holes of the supporting blocks 44 in a rotatable assembly. The main rotating rod 43 sequentially drives the synchronous pulling belt 40, the middle driving rod 42 and the top rotating rod 41 to synchronously rotate under the driving of the external gear box group, the rotating group bodies are oppositely arranged in two groups, and the braided fabric passes through the two groups and is oppositely rotated to form clamping friction to pull the braided fabric.

In fig. 22 (b), a plurality of equidistant plastic synchronous teeth 40a are arranged on the inner side of the annular synchronous pulling belt 40, and a wire layer 40b is arranged in the middle of the synchronous pulling belt 40. The top rotating rod 41, the middle driving rod 42 and the main rotating rod 43 are respectively provided with a plurality of synchronous teeth 41a, 42a and 43a which have the same distance with the plastic synchronous teeth of the synchronous pulling belt, the synchronous teeth 41a, 42a and 43a of the rotating rods are mutually meshed, and the synchronous teeth 41a and 43a are meshed with the plastic synchronous teeth 40a of the synchronous pulling belt 40 to realize synchronous rolling rotation.

Fig. 22 (c) is a schematic view showing an assembly structure of the roller assembly of the weft knitting machine according to the present invention. The two ends of the top rotating rod 41, the middle driving rod 42 and the main rotating rod 43 are sleeved on the corresponding round holes of the supporting block 44, and the synchronous teeth 41a, 42a and 43a are in a mutually meshed state.

(1) Looping: in fig. 2 (a), the stitch is shown in a stitch-forming state in which the transfer cam 18 is inserted into the base plate and the tuck cams 16, 16' are raised out of the base plate. Along with the relative movement of the grid plate and the needle bed, the needle selection piece is selected by the Aa needle selector to ascend along the stitch A, and the knitting needle is pushed to perform knocking over and looping along the looping stitch D.

(2) Tucking: in fig. 2 (a), the tuck stitch is shown in which the transfer cam 18 is inserted into the base plate and the tuck cams 16, 16' are raised out of the base plate. Along with the relative movement of the grid plate and the needle bed, the selector is not selected by the Aa needle selector but selected by the Ba needle selector, and the needle is pushed upwards along the stitch B to carry out tucking along the tucking stitch E.

(3) Three-station weaving: in fig. 2 (a), three-position knitting stitches are shown, a part of the needles are selected in the Aa selector and looped along the D stitch, a part of the needles are selected in the Ba selector and looped along the E stitch, and a part of the needles are not selected in the Aa and Ba selectors and pass straight along the stitches without participating in knitting. And completing looping, tucking and non-weaving in the same weaving line to realize the function of three-position weaving.

(4) Transferring: fig. 2 (b) shows a transfer stitch in which the tuck cams 16, 16' are submerged into the base plate and the transfer cam 18 is raised out of the base plate. Along with the relative movement of the grid plate and the needle bed, the needle selection piece is selected by the Aa needle selector to ascend along the stitch A, and the knitting needle is pushed to transfer along the stitch C.

(5) A coupling ring: fig. 2 (b) shows the stitch of the stitch, in which the transfer cam 18 is submerged in the base plate and the tuck cams 16, 16' are raised out of the base plate. Along with the relative movement of the grid plate and the needle bed, the selector is not selected when passing through the Aa selector, is selected when passing through the Ba selector, and rises along the stitch B to push the connecting needle to connect along the stitch F.

There is another way of making a tuck stitch E in the flat knitting machine of the present invention, and the tuck stitch E shown in fig. 2 (a) can be used for a simple tuck function without change, and this way of making a tuck stitch for a special tuck needs can obtain an ideal effect.

(6) Turning over a needle: when the needle is turned over, the grid plate on one side performs a transfer action, and the grid plate on the other side performs a receiving action, so that a coil on the knitting needle of one needle bed is transferred to the knitting needle of the other needle bed, and the needle turning function is realized.

(7) A pair of flip pins: fig. 2 (b) shows a butt-stitch, in the same knitting row, a part of needles are selected by an Aa needle selector, a selector pushes a knitting needle to transfer along a C stitch, a part of needles are selected by a Ba needle selector, the selector pushes the knitting needle to connect along an F stitch, and a double-side grid plate triangular system simultaneously executes the transfer and the connection functions, so that the loops on the knitting needles of the two needle beds are mutually transferred to the knitting needles of the other needle bed, namely, the butt-stitch function is realized.

(8) Needle separation: fig. 2 (b) shows a stitch dividing, in which the stitch-dividing cam 13 at the end of the grid plate performing the transfer function is raised to the stitch dividing position (as indicated by the broken line of the stitch-dividing cam 13). The split function is to form a new stitch by the simultaneous draft of the stitches on the transfer needle transferred to the receiving needle of the other needle bed. During needle separation, a transfer needle transfers a loop along the C needle track, a receiving needle is kept at a position for delaying needle falling along the G needle track after receiving the loop, at the moment, a yarn nozzle feeds yarn for the descending transfer needle, the transfer needle retreats the loop after eating new yarn, the receiving needle descends along the guide needle surface of the needle protection triangle 12 after the receiving needle sucks and retreats the loop, and thus, the receiving needle and the transfer needle both suck the yarn to form a new loop, namely, needle separation is realized.

The tuck stitch E shown in fig. 2 (a) can also be used for a simple needle-flipping or needle-separating, and if a new yarn is fed to the yarn-laying position of the transfer needle during the needle-removing process, a new stitch is formed on the transfer needle after the needle-removing process, and this method is also suitable for needle-separating, and can be applied differently from the former needle-separating method as appropriate.

Claims

A flat knitting machine comprises a grid plate component, a needle bed component, a needle selector component and a roller component, wherein the grid plate component is oppositely arranged on the front side and the rear side of a head frame capable of sliding in a reciprocating manner, each functional guide pin groove consisting of a triangular system is arranged on the grid plate, the needle bed component is oppositely arranged on the lower side of the grid plate, the working surface of the grid plate and the working surface of the needle bed are mutually parallel through a narrow gap, a plurality of adjacent needle grooves are arranged on the needle bed, the top end of each needle groove is provided with a looping tooth mouth, a knitting needle and a needle selector which can move forward and backward are arranged in each needle groove, one side of the looping tooth mouth is provided with a movable sinker, a knitting needle butt and a needle selector butt can protrude or sink into each needle groove, the needle selector component is arranged and fixed at the bottom of the grid plate in an overlapping manner, a needle selecting channel is formed between a magnetic guide pin surface of the needle selector and a magnetic guide pin surface of a needle block, the needle selector selects and guides the passing needle selector to enable the needle selector to be immersed into a needle groove for stop knitting or enter a needle jack groove of a cam system to move back and forth along the needle groove, a roller assembly is arranged at the lower side of a needle bed and is driven by power to draw the knitted fabric, and the needle selector is characterized in that:

the flat knitting machine grid plate component comprises a base plate (10), an

Needle return cams (11, 11 '), needle protection cams (12, 12'), needle pressing cams (15, 15 '), needle transferring and guiding cams (17), needle receiving and stopping cams (19), middle stopping cams (110), middle stopping cams (111), needle protecting cams (112, 112'), resetting cams (113, 113 '), synchronous resetting cams (114, 114'), needle pushing cams (115), needle receiving and pushing cams (117), middle resetting cams (118), yarn bending cams (13, 13 ') which are mounted on a substrate (10) through sleeving parts and can move along the plane thereof, yarn bending stopping cams (14, 14'), and loop collecting cams (16, 16 '), needle transferring cams (18), needle receiving cams (116, 116') which are sleeved on a mounting frame of the substrate (10) and can vertically move along the mounting frame thereof, and a cam mounting bracket (119), and the number of the first and second electrodes,

in the flat knitting machine grid plate component, the upper and lower working areas of the grid plate are respectively formed by the triangles which are fixed on the base plate (10) and/or sleeved on the mounting frame of the base plate (10), the upper triangular system is a looping knitting area and is respectively provided with a looping guide pin channel (D), a transferring guide pin channel (C), a tucking guide pin channel (E) and a connecting guide pin channel (F), the lower triangular system is a needle pushing/selecting area and is provided with a needle pushing channel with the function corresponding to the functional guide pin channel of the upper looping knitting area, namely a looping/transferring needle pushing channel (A) and a tucking/connecting needle pushing channel (B);

the flat knitting machine needle bed component comprises a bed (20), a tooth piece (23), a filling piece (26), a sinker (27), pressing plates (29, 214), a composite knitting needle consisting of a latch needle (210), a butt piece (211) and an elastic clamp spring (212), a needle bed plug-in piece (213), a needle selection piece (215) and a gasket (219),

the flat knitting machine needle bed component is characterized in that a needle bed insert (213) is inserted into a base groove of a base bed (20), a working needle groove is formed between adjacent inserts of the needle bed insert (213) which are higher than the base bed, a looping tooth sheet (23) is arranged at the top of the needle groove, a looping tooth opening is formed by the looping tooth sheet (23), a sinker (27) is arranged on one side of the looping tooth sheet (23), a composite needle and a needle selector (215) which can work in a forward and backward moving mode and are composed of a latch needle (210), a heel sheet (211) and an elastic buckle spring (212) are arranged in the needle groove, the composite needle corresponds to a looping knitting area on the upper part of a grid plate, the needle selector (215) corresponds to a needle raising area on the lower part of the grid plate, and a butt (211c) of the heel sheet (211) and a butt (215 d) of the needle selector (215) can protrude out of the needle groove or sink into the needle groove along the depth direction of;

the needle selector assembly of the flat knitting machine comprises a needle selector shell (30), permanent magnets 1 (31), permanent magnets 2 (32), magnetism-increasing permanent magnets 3 (312), magnetism-increasing permanent magnets 4 (313), a cushion supporting block (33), E-shaped magnetizer assemblies (34, 35, 36), a demagnetization coil (37), isolation quartz (38), a fixed cushion block (39), a guide pin block (310), guide pin magnetic steels (311 a, 311 b), a fixed screw (314), a hollow pin (315), a middle needle selector (316) in the double-system flat knitting machine and a middle guide pin bottom block (317) in the double-system flat knitting machine which have the same function, wherein,

the needle selector assembly of the flat knitting machine is characterized in that an E-shaped magnetic guide needle assembly is arranged in a needle selector shell (30), a guide pin block (310) is arranged on the corresponding side of the E-shaped magnetic guide needle assembly, guide pin magnetic steel (311 a and 311 b) and a magnetism increasing permanent magnet (313) are arranged on the guide pin block (310), a needle selecting channel is formed between a magnetic surface at one end of the E-shaped magnetic guide needle assembly and a magnetic surface of the guide pin block (310), the needle selecting channel is used for a needle selector (215) to pass through, the distance between two end surfaces of the channel is slightly larger than the height of the needle selector (215), a demagnetization coil (37) is wound on an intermediate body (35) of the E-shaped magnetic guide needle body, one end of the intermediate body (35) is a needle selecting opening (35 a), a reverse magnetic field can be selectively generated in the demagnetization coil (37) through demagnetization current to offset the original magnetic field of the needle selecting opening (35 a), and when the needle selector (215) passes through the magnetic selecting opening (35 a) and acts on the magnetic region, whether the magnetic property of the needle selection port (35 a) selects the moving track of the selector (215) or not;

the roller component of the flat knitting machine comprises a ring-shaped synchronous pulling belt (40, 40 '), top rotating rods (41, 41 '), middle transmission rods (42, 42 '), main rotating rods (43, 43 '), supporting blocks (44, 44 ') at two ends,

the roller assembly of the flat knitting machine is characterized in that a top rotating rod (41), a middle transmission rod (42) and a main rotating rod (43) are arranged on the inner side of a ring-shaped synchronous pulling belt (40) in an epitaxial mode, two ends of each rotating rod are sleeved in corresponding holes of a supporting block (44) to form a rotatable assembly, similarly, the corresponding bodies (40 ', 41 ', 42 ', 43 ', 44 ') form another rotatable assembly, the two sets of rotating assemblies are oppositely arranged, and the main rotating rods (43, 43 ') sequentially drive the synchronous pulling belt (40, 40 '), the middle transmission rod (42, 42 '), and the top rotating rods (41, 41 ') to rotate synchronously in a rolling mode under the driving of external power.
The flat knitting machine according to claim 1, characterized in that: in the grid plate assembly, the grid plate is provided with a plurality of grid plates,

the base plate (10) is respectively provided with a yarn bending triangle mounting frame (10 a, 10a '), a loop transfer triangle and a loop collection triangle together mounting frame (10 b), a loop connecting triangle mounting frame (10 c, 10c '), a needle selector mounting frame (10 d, 10e ', 10f, 10 g);

the needle pressing cam (15) is provided with needle pressing inclined planes (15 a, 15 b) and a connecting ring lower needle limiting plane (15 c), wherein the needle pressing inclined plane (15 a) can be used as an independent needle pressing cam, a needle pressing spring is arranged on the back side of the needle pressing inclined plane, protective needle pressing is carried out under the pressure of the spring, when a butt cannot be pressed into a needle groove due to certain factors, the needle pressing cam (15 a) can be jacked up to avoid damage of a knitting needle, and the needle pressing cam (15 a) can be in one-way linkage with the tucking cam (16) when jacked up;

the connecting ring limit triangle (19) is provided with a limit surface (19 a) and a needle protection surface (19 b);

an outer needle protection triangle (112) is provided with a needle protection reset inclined plane (112 a) and a needle protection convex surface (112 c);

the needle pushing cam (115) is provided with a needle selection sheet initial cutting inclined plane (115 a) and a needle passing inclined plane (115 b) provided with a connecting ring needle selection sheet, one side of the needle pushing cam is provided with a reset needle protection inclined plane (115 c), and a needle pushing surface (115 d) and a lower needle surface (115 e) are integrated streamline surfaces;

a connecting ring triangle (116) is provided with needle protection inclined planes (116 a, 116 b);

the two ends of the yarn bending triangle (13) are respectively provided with yarn bending surfaces (13 a, 13 b) with different widths;

the tucking triangle (16) is provided with a needle protection inclined plane (16 a), a reset groove (16 b) and a needle lifting surface (16 c), and a groove wall inclined plane (16 d) of the reset groove (16 b) is a needle protection reset surface;

the loop transfer cam (18) is provided with a mounting groove (18 a) of a loop connecting limit cam (19), a lower needle surface (18 b) of a loop connecting needle and a needle lifting surface (18 c) of the loop transfer needle;

a cam mounting bracket (119) is provided with fixing screw holes (119 a, 119a ', 119e and 119 f), sliding mounting holes (119 b and 119 b') provided with tucking cams (116 and 116 '), a sliding mounting hole (119 c) provided with a transfer cam (18), sliding mounting holes (119 g and 119 g') provided with elastic tucking cams (15 a) and a cam limit screw hole (119 d).
The flat knitting machine according to claim 1, characterized in that: in the cam system, a transfer cam (18) and a tucking cam (16, 16 ') which are sleeved on a base plate (10) and can vertically move along a sleeved frame are mutually and alternately moved out and in through a seesaw rod linkage to realize the conversion between knitting function grooves (C, D, E, F), and similarly, a connecting cam (116) and a connecting cam (116') are mutually and alternately moved out and in through a seesaw rod linkage to realize the left-right conversion of the connecting function grooves.
The flat knitting machine according to claim 1, characterized in that: in the needle bed component, the needle bed component is provided with a needle bed,

the bed (20) is provided with mounting grooves (20 a, 20 b) of a gasket (219), a concave surface (20 c) for providing a moving space when a knitting butt piece (211) is bent, a limiting steel wire groove (20 d) and a moving gap concave surface (20 e) of a needle selecting piece (315);

the looping tooth sheet (23) is provided with fixed end mounting holes (23 a, 23 d), the surface (23 c) of the looping tooth protrudes to one side of the fixed end surface of the looping tooth sheet, and a looping steel wire mounting hole (23 b) is arranged on the looping tooth surface (23 c);

the filling and supporting sheet (26) is provided with open type fixing holes (26 a, 26 b) and a fixing hole (26 c);

the sinker (27) is provided with a sinker hook tooth (27 a), a concave surface (27 b), moving position limiting holes (27 c, 27 d) and a butt (27 e), and the sinker (27) is slidably arranged in an installation space formed by an inserting sheet (213), a tooth sheet (23) and a filling and supporting sheet (26);

the pressure plates (29, 214) are respectively provided with a magnet mounting groove, and plastic magnets (29 a, 214 a) are mounted in the grooves;

the needle bed insert (213) is respectively provided with mounting steel wire holes (213 a, 213 b) of a tooth piece (23), sinker moving guide steel wire holes (213 c, 213 d), a sinker mounting concave surface (213 e), a gasket fixing steel wire hole (213 f), selector limiting steel wire holes (213 g, 213 h), a mounting limiting groove (213 i), a needle taking groove (213 j) and a dust storage frame (213 k);

the gasket (219) is provided with mounting grooves (219 a, 219 b) and a needle protection concave table 219 c.
The flat knitting machine according to claim 1, characterized in that: which is a composite knitting needle consisting of a latch needle (210), a heel piece (211) and an elastic buckling pin (212),

the latch needle (210), the widening ring piece and the needle body part corresponding to the widening ring piece are provided with joint needle opening-assisting latch salient points (210 a, 210a '), connecting grooves (210 b, 210 c) with heel pieces are arranged, buckling salient points (210 d) with heel pieces are arranged, and a bending self-service inclined plane (210 g) is arranged, the distance between the opening-assisting latch salient points (210 a) and the opening-assisting latch salient points (210 a ') can pass through a hook (210 e) of the joint needle and can not pass through a wider latch (210 f), and the joint needle latch is pushed open by the opening-assisting latch salient points (210 a, 210a ') by virtue of the ascending movement of a transfer knitting needle during transfer;

the heel piece (211) is provided with a limiting heel (211 a), an installation frame (211 b) provided with an elastic buckle spring (212), a heel piece (211c), a reset action surface (211 d), a connecting heel (211 e) and a bent self-service inclined plane (211 f), wherein the connecting heel (211 e) is buckled with a connecting groove (210 b) of the latch needle (210) to enable the connecting heel (211 e) to be connected with the latch needle (210);

the elastic buckle spring (212) is provided with an elastic convex part (212 a) and an elastic acting part (212 b), and the elastic buckle spring (212) is elastically installed in an installation frame (211 b) provided by the heel piece (211);

the composite needle composed of the latch needle (210), the heel piece (211) and the elastic buckle spring (212) can present two states under the action of the elasticity or the external force of the elastic buckle spring, respectively in a buckling state and a bending state, when the composite needle is in the buckling state, the elastic convex surface (212 a) of the elastic buckle spring (212) is abutted against the upper part of a connecting heel buckling salient point (210 d) of the knitting needle, so as to provide elastic thrust for keeping the existing state of the knitting needle stable, the elastic thrust can ensure that the heel piece (211) can not be bent under the condition without the action of the external force, when the force exerted on the heel piece (211c) at the three-angle pressing needle reaches a set value, the composite needle can do limited elastic bending rotation in a curved surface taking the connecting heel (211 e) as the rotating center of a circle, the buckling state is changed into the bending state, when the bending degree reaches the superposition of the self-bending inclined plane (211 f) and the self-bending inclined plane (210 g), the heel piece (211) moves along the self-service inclined plane (210 g) of bending under the elastic action of the elastic buckle spring (212) and is bent by self along the self-service inclined plane (210 g), when the bending degree enables the limiting heel (211 a) of the heel piece to reach the contact with the buckling protrusion (210 d) of the knitting needle, the bending degree is limited, and the state is kept stable under the elastic thrust of the elastic buckle spring (212).
The flat knitting machine according to claim 1, characterized in that: the needle selection piece (215) is respectively provided with a needle raising inclined plane (215 a), a needle jack buckling groove (215 b), a gap inclined plane (215 c), a piece butt (215 d), a needle selection piece selecting and holding tail (215 e), a magnetic isolation hole (215 f) and a convex support surface (215 g).
The flat knitting machine according to claim 1, characterized in that: in the needle selector component, the needle selector is provided with a needle selecting mechanism,

the E-type magnetizer assembly comprises magnetizers 1 (34), magnetizers 2 (35), magnetizers 3 (36) and demagnetization coils (37), the loop bodies are two corresponding groups, the corresponding groups are respectively the magnetizer 1 (34 '), the magnetizer 2 (35 '), the magnetizer 3 (36 ') and the corresponding demagnetization coil (37 '), the demagnetization coil (37) is wound on the intermediate body (35) of the E-type magnetizer, the permanent magnet 1 (31) is arranged between the magnetizer 1 (34) and the corresponding magnetizer 1 (34 '), the permanent magnet 2 (32) is arranged between the magnetizer 3 (36) and the corresponding magnetizer 3 (36 '), the magnetization permanent magnet 4 (313) is arranged between the intermediate magnetizer (35) and the corresponding magnetizer (35 '), one end of the E-type magnetizer assembly (34, 35, 36) is a magnetic needle guide formed by the permanent magnet 1 (31), the permanent magnet 2 (32) and the magnetization permanent magnet (4) 313), the two ends between the two groups are respectively provided with a cushion supporting block (33) and an isolation quartz (38), and the cushion supporting block and the isolation quartz and the E-shaped magnetic conduction loop form a magnetic loop component together, and are arranged in a needle selector shell (30); and the number of the first and second electrodes,

the E-type magnetizer assembly also comprises another composition form, wherein the permanent magnet 1 (31), the permanent magnet 2 (32) are arranged between the magnetizers (34, 35, 36) and one end of the corresponding body (34 ', 35', 36 '), and the permanent magnet 2 (32) is used as a demagnetization loop of an intermediate body (35, 35') of the E-type magnetizer;

the bottom block of the guide pin is provided with installation grooves for installing guide pin magnetic steels (1, 2) 311a and 311b, the guide pin magnetic steels 1 and 2 (311 a and 311 b) are installed in the grooves to form a magnetic guide pin surface (310 c), and the magnetism-increasing permanent magnet 3 (312) is installed at the lower parts of the guide pin magnetic steels 1 and 2 (311 a and 311 b) corresponding to the needle selection opening (35 a) to increase the magnetic field intensity of the needle selection opening area.
The flat knitting machine according to claim 1 or 7, characterized in that: in the needle selector assembly, a needle selection piece tail (215E) sequentially passes through a needle selection channel formed between an E-shaped magnetic conductance needle assembly and a magnetic slider (310), is firstly magnetically attracted by the E-shaped magnetic conductance needle assembly and moves along a slider surface, when the piece tail of the needle selection piece (215) passes through a needle selection port (35 a) and a corresponding area of the magnetic slider (310), magnetic fields of the E-shaped magnetic conductance needle assembly and the magnetic slider (310) simultaneously act on the piece tail of the needle selection piece (215), and at the moment: if the demagnetization coil (37) does not pass through the demagnetization current, the needle selection piece (215) can continue to move along the guide pin surface of the E-shaped magnetic conductance needle assembly and enter a knitting needle groove; if the demagnetization coil (37) obtains a reverse magnetic field current, the selector (215) jumps to the needle selection opening (35 a) because of demagnetization and magnetic attraction of the slider (310) at the corresponding end, and moves along the magnetic slider inclined plane (310 c) of the slider (310) to sink into the needle groove.
The flat knitting machine according to claim 1, characterized in that: in the roller component, a plurality of equidistant plastic synchronous teeth (40 a) are arranged on the inner side of a ring-shaped synchronous drawing belt (40), and a wire rib layer (40 b) for stabilizing the drawing expansion coefficient of the synchronous drawing belt (40) is arranged in the middle of the synchronous drawing belt (40).
The flat knitting machine according to claim 1 or 9, characterized in that: in the roller component, a top rotating rod (41), an intermediate driving rod (42) and a main rotating rod (43) are respectively provided with synchronous teeth (41 a, 42a, 43 a) which are arranged around and have the same distance with the plastic synchronous teeth of a synchronous pulling belt (40), the synchronous teeth (41 a, 42a, 43 a) are mutually meshed, in addition, the synchronous teeth (41 a, 43 a) of the top rotating rod and the main rotating rod are meshed with the plastic synchronous teeth (40 a) of the synchronous pulling belt (40) to realize synchronous rolling rotation, and the corresponding components (41 ', 42 ', 43 ') of the components have the same characteristics.