CN116949653A - Method for preventing loop-joining needle from returning to monofilament during loop-transferring knitting of flat knitting machine - Google Patents

Abstract

The invention relates to a method for preventing loop-joining needle from returning to needle monofilament during loop-transferring knitting of a flat knitting machine, which comprises a pair of needle plates symmetrically arranged in front and back and respectively provided with a plurality of knitting needles, a plurality of sinkers arranged at the front end of the needle plates, a triangle bottom plate provided with a plurality of knitting cams and transversely moving above the needle plates, a sedimentation triangle bottom plate provided with sedimentation cams and connected with the upper side edge of the triangle bottom plate, and a pushing component for pushing the sedimentation cams to move; during loop transfer knitting, a loop on a loop transfer knitting needle is transferred to a loop receiving knitting needle, a sinker is under the action of a sinker cam and is positioned at a working position or a non-working position which is not working on an arc line between the loop and the loop, and the sinker is positioned at the working position or the non-working position at a needle lifting section of loop transfer knitting; the loop-joining needle-returning section of loop-transferring knitting is acted on the sinker through the sinker cam to enable the sinker to be in a working position so as to press an arc line between loops and prevent the loop-joining needle from generating a needle-returning monofilament.

Description

Method for preventing loop-joining needle from returning to monofilament during loop-transferring knitting of flat knitting machine

Technical Field

The invention relates to a method for preventing a loop needle from returning to a needle monofilament during loop transfer knitting of a horizontal knitting machine, belonging to the technical field of spinning.

Background

The flat knitting machine is provided with a pair of needle plates 1 which are symmetrically arranged back and forth, as shown in fig. 1, a plurality of parallel needle grooves are arranged on the needle plates 1, a knitting needle 10 and corresponding stitches are arranged in each needle groove, a triangle base plate 2 capable of transversely moving is arranged above each needle plate 1, and a plurality of knitting cams 20 which act on the stitches are arranged on the triangle base plate, so that the knitting needle is driven to move up and down in the needle grooves through the stitches, and the upward and downward movements of the knitting needle 10 in the needle grooves respectively form a needle lifting section A1 and a needle returning section A2 of the knitting needle 10 in each movement cycle of the needle grooves, wherein the needle returning section A2 can be one section or can be divided into two sections, such as a first needle returning section A21 and a second needle returning section A22 in fig. 2. The stitch movement is controlled by different knitting cams 20 which push the knitting needles to form different knitting needle movement tracks A to complete different knitting such as looping, tucking, transferring and the like

The sinker 4 is arranged at the front end of the needle plate 1 and is positioned at the two sides of the front end of each needle groove, the upper side of the triangular bottom plate is provided with a sedimentation triangle 6 which acts on the sinker 4, the sedimentation triangle 6 is arranged on the sedimentation triangle bottom plate 5, the sinker butt 40 of the sinker 4, when subjected to the action of the sinker cam 6, is rotated to a degree such that the sinker-applied end 41 acts on the loop or the inter-loop arc which is suspended on the knitting needle 10. The sedimentation triangle 6 is moved up or down on the sedimentation triangle bottom plate 5 such that the sedimentation triangle 6 is in a position with or without action on the sinker 4.

The setting of the sinker 4 is to avoid the phenomenon that the fabric floats up along with the lifting of the knitting needles in the lifting section because of insufficient traction force. However, at present, when sweater pieces or full-forming knitting is performed, because a large number of narrowing and widening operations are required, the fabric floats on the nozzle 3 between two needle plates due to a very lack of pulling force, and as the transfer knitting needle gradually withdraws in transfer knitting, when the loop knitting needle is in loop back, if the loop floats on the nozzle 3, the tip of the needle hook of the knitting needle is likely to be inserted into part of yarns of the loop to form monofilaments, so that problems of the appearance and quality of the fabric, particularly yarns with low multi-strand twist, are generated. However, the corresponding sinker cams 6 in each movement cycle of the conventional flat knitting machine are generally provided with two sinker cams, which correspond to the needle-raising section and the needle-returning section, respectively, and are in the high position and the low position, respectively, the sinker is used in the needle-raising section and is not used in the needle-returning section, because for the flat knitting machine, most of knitting is required to feed yarn, i.e. "feed yarn", to the knitting needles, and if the sinker works in the needle-returning section, the sinker will interfere with the yarn feed, so that the sinker cannot necessarily work. Although yarn feeding is not needed in loop transferring knitting, the side effects such as broken yarn and instability are brought to loop transferring due to the fact that the position and the depth of arc action between a cylinder mouth coil and a coil are improper by the action end of a sinker in a loop returning section, and therefore the sinker does not work.

Therefore, the monofilament problem of the conventional flat knitting machine in loop transfer knitting is not solved well.

Disclosure of Invention

The invention provides a method for preventing a loop-joining needle from returning to a monofilament when a sinker is in a working position in a loop-joining needle-returning section of loop-transferring knitting.

In order to achieve the above purpose, the technical scheme provided by the invention is as follows: the method for preventing the loop-joining needle from returning to the needle monofilament during loop-transferring knitting of the horizontal knitting machine comprises a pair of needle plates which are symmetrically arranged in front and back and are respectively provided with a plurality of knitting needles, a plurality of sinkers arranged at the front end of the needle plates, a cam base plate which is provided with a plurality of knitting cams and transversely moves above the needle plates, a sinker cam base plate which is provided with sinker cams and is connected with the upper side edge of the cam base plate, and a pushing component for pushing the sinker cams to move; during loop transfer knitting, a loop on a loop transfer knitting needle is transferred to a loop receiving knitting needle, a sinker is under the action of a sinker cam and is positioned at a working position or a non-working position which is not working on an arc line between the loop and the loop, and the sinker is positioned at the working position or the non-working position at a needle lifting section of loop transfer knitting; in the loop-transferring knitting loop-back needle section, the sinker is in the working position.

The technical scheme is further designed as follows: the loop back needle section comprises a first back needle section and a second back needle section; the sinker is in the working position in the first and second needle return sections, respectively, or in the working position only in the second needle return section.

The sedimentation triangle is pushed by the pushing component to move up to a high position or move down to a low position, and consists of a sedimentation bottom plate, a needle-together triangle which is arranged on the sedimentation bottom plate and provided with a pushing inclined plane and a lower limit plane, and a needle-returning triangle which is arranged on the sedimentation bottom plate and provided with a pushing inclined plane and an upper limit plane, wherein the needle-returning triangle and the needle-returning triangle are arranged up and down oppositely, and a running path of the sinker butt is formed between the needle-returning triangle and the needle-returning triangle.

One preferable scheme of the technical scheme is as follows: the two settlement cams are arranged symmetrically left and right relative to the symmetrical central line of a knitting area formed by a plurality of knitting cams on the cam base plate, are arranged in a vertically slidable manner, and correspond to the needle lifting section and the needle returning section respectively.

The length of the running path on each sedimentation triangle is longer than that of the needle lifting section or the needle returning section so as to carry out full-section control on the sinker in the needle lifting section or the needle returning section; or the length of the running path on the sedimentation triangle is shorter than that of the needle lifting section or the needle returning section so as to locally control the sinker in the needle lifting section or the needle returning section.

Another preferable scheme of the technical scheme is as follows: the settlement cams are arranged in a group of four pairs, two settlement cams in each group are arranged left and right, and the two settlement cams are symmetrically arranged left and right relative to the symmetrical center line of a knitting area formed by a plurality of knitting cams on a cam base plate and correspond to a needle lifting section and a needle returning section respectively.

Two sedimentation cams in each group and adjacent ends of the two sedimentation cams adjacent to each group are respectively provided with a step structure which can be mutually attached and accommodated and form the running path.

The two sedimentation cams in each group are arranged at high position or at low position to form a sinker butt running path with length longer than that of the needle lifting section or the needle returning section so as to control the whole course of the sinker in the needle lifting section or the needle returning section; or the two sinker cams in each group are respectively arranged at a high position and a low position to form a sinker butt running path with the length shorter than that of the needle lifting section or the needle returning section so as to locally control the sinker in the needle lifting section or the needle returning section.

The pushing assembly comprises a sliding pin and a pushing block which is pushed by a straight line, wherein the pushing block is provided with a chute with the width matched with that of the sliding pin and an inclined guide surface, the sliding pin is connected to a sedimentation triangle and is slidingly arranged in the chute, and the sedimentation triangle moves upwards or downwards when the pushing block is pushed and the sliding pin slides along the inclined guide surface in the chute.

The pushing block is provided with a sliding groove or a plurality of sliding grooves, each sliding groove is connected with at least one sliding pin connected with the sedimentation triangle in a sliding manner, and the pushing block drives one or a plurality of sedimentation triangles to move up and down when being pushed.

The invention has the beneficial effects that:

the invention designs the loop-connecting and needle-returning section in loop-transferring knitting to enable the sinker to be in a working position, and prevents the phenomenon that the needle hook of the loop-connecting needle hooks the filaments possibly caused by insufficient traction force of the fabric in the loop-connecting and needle-returning section by utilizing the action of the sinker on the loop and the arc line between the loops in the working position, thereby thoroughly solving the filament problem of the loop-connecting and needle-returning section in loop-transferring knitting.

The invention controls the sinker through the pushing assembly for the sinker cam and pushing the sinker cam to move up and down so as to enable the sinker to work at the corresponding needle return section, and the implementation method is simple and reliable and easy to realize.

The invention controls the setting cams of the sinkers to be arranged in four pairs, two sets of the setting cams are symmetrically arranged, and the two setting cams in each set are positioned at the high position and one of the setting cams is positioned at the high position by the pushing of the pushing component, so that a knitting needle running path which is formed by the combination of the setting cams and is longer or shorter than the corresponding needle section is formed, and the sinkers on the corresponding needle section can be controlled in the whole course or in part according to the requirement, so that the fabric density is kept in a better state.

In the four sedimentation cams of the invention, two sedimentation cams adjacent to each other in groups and the adjacent ends of the two sedimentation cams in each group are respectively provided with the mutually-fit and accommodated step structures, and the step structures are positioned on the running path, so that when the sinker butt runs to the butt joint position of the adjacent ends of the two sedimentation cams, a seam wider than the width of the butt (namely the running path) is not generated, and the butt runs stably without the doubt of embedding the seam.

The pushing assembly mainly comprises the pushing blocks provided with the sliding grooves and the sliding pins which are arranged in the sliding grooves and are connected with the sedimentation cams, the plurality of sliding grooves are arranged on one pushing block, the sedimentation cams are respectively arranged in the corresponding sliding grooves through the corresponding sliding pins, and when the pushing blocks are pushed, the sedimentation cams slide along the inclined guide surfaces in the sliding grooves through the corresponding sliding pins to move up and down, so that the structure of the whole pushing assembly is very concise, and the relative movement relationship is accurate.

Drawings

FIG. 1 is a schematic view of a sinker and a needle plate according to the prior art;

FIG. 2 is a graph showing the relationship between sinker needle travel and needle travel in the prior art;

FIG. 3 is a schematic diagram showing the positions of two settling cams and a pushing block according to the first embodiment;

FIG. 4 is a schematic diagram of the positions of the sedimentation cams and the pushing blocks in the second embodiment;

FIG. 5 is a schematic diagram of a four-sedimentation triangle structure in a third embodiment;

FIG. 6 is a schematic diagram of a four-sedimentation triangle combination in a third embodiment;

FIG. 7 is a schematic diagram of the positions of the four-sedimentation triangle and the pushing block in the third embodiment;

FIG. 8 is a schematic diagram of a third embodiment of a four-sedimentation triangle and a pusher;

FIG. 9 is a schematic diagram of a third embodiment of a four-sedimentation triangle and a pusher;

FIG. 10 is a schematic diagram showing the positions of a four-sedimentation triangle and a pushing block in a third embodiment;

FIG. 11 is a diagram showing the positions of the four sedimentation cams and the pushing blocks in a third embodiment;

FIG. 12 is a diagram showing the positions of the four-sedimentation triangle and the pushing block in the third embodiment;

fig. 13 is a schematic view of a sedimentation triangle bottom plate in the third embodiment.

In the figure: 1-needle plate, 10-knitting needle, 2-cam base plate, 20-knitting cam, 3-cylinder mouth, 4-sinker, 40-sinker butt, 41-sinker acting end, 5-sinker cam base plate, 50-bar hole, 6-sinker cam, 60-sinker base plate, 61-needle lifting cam, 611-push lifting inclined plane, 612-lower limit plane, 62-return needle cam, 621-push falling inclined plane, 622-upper limit plane, 63-slide pin, 64-guide pin, 7-push block, 70-slide groove, A-knitting needle movement track, A1-needle lifting section, A2-return needle section, A21-first return needle section, A22-second return needle section and B-sinker butt movement path.

Description of the embodiments

The invention will now be described in detail with reference to the accompanying drawings and specific examples.

The following examples are illustrative of the method of the present invention performed on a flat knitting machine and cam plate as shown in figures 1 and 2, but are not limited to the construction shown in figures 1 and 2.

Examples

This embodiment is implemented on a flat knitting machine and a cam plate as shown in fig. 1 and 2. The upper side of the triangle bottom plate 2 is connected with a settlement triangle bottom plate 5, as shown in a 3-1 part in fig. 3, two settlement triangles 6 which are in sliding connection with the settlement triangle bottom plate 5 are arranged on the settlement triangle bottom plate 5 corresponding to each movement cycle position of a knitting needle, and the two settlement triangles 6 are symmetrically arranged on the settlement triangle bottom plate 5 relative to the symmetrical center line of a knitting area formed by a plurality of knitting triangles on the triangle bottom plate and respectively correspond to a needle lifting section and a needle returning section of loop transfer knitting.

Each sedimentation cam 6 is composed of a sedimentation bottom plate 60, a needle-together cam 61 with a push-up inclined surface 611 and a lower limit plane 612, and a needle-return cam 62 with a push-down inclined surface 621 and an upper limit plane 622, the needle-return cam 62 and the needle-lifting cam 61 are arranged on the sedimentation bottom plate 60 in a vertically opposite manner, and a traveling path B of a sinker butt surrounded by the push-up inclined surface 611, the lower limit plane 612, the push-down inclined surface 621 and the upper limit plane 622 is formed between the needle-return cam 62 and the needle-lifting cam 61.

The two settling cams 6 on the settling cam base plate 5 are pushed to move up and down by a pushing assembly comprising a slide pin 63 provided on the settling cam 6 and a pushing block 7 for pushing the slide pin 63, the pushing block 7 being driven by a driving element, for example, a linear motor, to be pushed linearly. As shown in the 3-2 part of fig. 3, two sliding grooves 70 with widths matched with the sliding pins 63 and containing inclined guide surfaces are arranged on the pushing block 7, and the sliding pins 63 on the two settlement cams 6 are respectively and slidably arranged in the corresponding sliding grooves 70.

The setting of the positions of the sedimentation cams is applied to loop-transferring knitting, and when loop-transferring knitting is performed, loops on the loop-transferring knitting needles are transferred to loop-receiving knitting needles, the corresponding sedimentation cams 6 need to work in a needle starting section, namely are positioned in a high position, and in a needle returning section, the corresponding sedimentation cams 6 can be positioned in a high position through the setting of the sliding grooves 70 and the pushing of the pushing blocks 7, namely, the corresponding sedimentation cams 6 in the needle returning section are positioned in a working position.

In this embodiment, the lengths of the running paths on the two sinker cams 6 are respectively shorter than the lengths of the corresponding needle lifting section and the corresponding needle returning section, so that the sinker can be locally controlled in the needle lifting section or the needle returning section.

In the embodiment, the front end of the sinker 6 of the loop needle section acts on an arc line between a cylinder mouth coil and a coil, so that the problem of loop needle loop monofilament is solved; but the knitting needle starting section locally presses the loop, so that the pressing effect on the loop is influenced, and the fabric density is influenced.

When the sinking triangle of the embodiment corresponds to other knitting, the pushing block 7 is pushed to form a high-position state and a low-position state of the sinking triangle which are adapted to the corresponding needle lifting section and the needle returning section, and the description is omitted herein.

Examples

This embodiment is also implemented on a flat knitting machine and a cam plate as shown in fig. 1 and 2. Two settlement cams 6 which are in sliding connection with the settlement cam base plate 5 are also arranged on the settlement cam base plate 5 corresponding to each movement cycle position of the knitting needle, as shown as a 4-1 part in fig. 4, the two settlement cams 6 are symmetrically arranged on the settlement cam base plate 5 relative to the symmetrical center line of a knitting area formed by a plurality of knitting cams on the cam base plate and respectively correspond to a needle lifting section and a needle returning section of loop transfer knitting; in this embodiment, the structure of the push block 7 is the same as that of the first embodiment, and when the loop is transferred and knitted, the setting of the chute 70 on the push block 7 and the pushing of the push block 7 can make the sedimentation triangle 6 corresponding to the needle raising section be in a high position, and the sedimentation triangle 6 corresponding to the needle returning section is also in a high position, as shown in the 4-2 part of fig. 4; the sinking triangle of this embodiment is also formed into 6 high and low positions of the sinking triangle corresponding to the needle raising section and the needle returning section by pushing the push block 7 when corresponding to other knitting, and will not be described in detail here.

The first difference between this embodiment and the first embodiment is that the length of the running path on the two sinker cams 6 is longer than the length of the corresponding needle lifting section and the corresponding needle returning section, so that the sinker can be controlled in the whole course in the needle lifting section or the needle returning section, and therefore, the adjacent ends of the two sinker cams 6 need to be butted, and the adjacent ends of the two sinker cams 6 in this embodiment are respectively provided with a step structure which can be mutually adhered and accommodated, and the butt running path at the step structure is not wider than the butt joint at the butt joint, and particularly, see fig. 5 and 6.

In the embodiment, the front end of the sinker 6 of the loop needle section acts on the arc line between the cylinder mouth coil and the coil, and the problem of loop needle return monofilaments of the loop needle is solved; however, when the whole section of the sinker 6 works, the effect of the action end of the sinker on the arc line between the coil and the coil is good when the knitting needle starts, but when the whole section of the sinker 6 works in the needle return section, the fabric density is easy to be too tight, the loop transfer and the loop connection are affected when the loop transfer is knitted, the loop transfer and the loop breakage are easy to be caused when the fabric density is relatively tight, and the fabric hole is broken.

Examples

This embodiment is also implemented on a flat knitting machine and a cam plate as shown in fig. 1 and 2. As shown in fig. 5, four sinker cams 6 slidably connected to the sinker cam base 5 are provided on the sinker cam base 5 at positions corresponding to each movement cycle of the knitting needles, and fig. 5 is a front view and a top view of the four sinker cams 6. The four settlement cams 6 are arranged in pairs, two settlement cams 6 in each group are arranged left and right, and the two settlement cams are symmetrically arranged left and right relative to the symmetrical center line of a knitting area formed by a plurality of knitting cams on a cam base plate and correspond to a needle lifting section and a needle returning section of loop transfer knitting respectively, wherein the two settlement cams 6 in one group corresponding to the needle returning section correspond to a first needle returning section and a second needle returning section respectively.

Similarly, each sinker cam 6 is composed of a sinker bottom plate 60, a needle raising cam 61 and a needle returning cam 62, the needle returning cam 62 and the needle raising cam 61 are arranged up and down oppositely, and a traveling path B surrounded by a push-up inclined surface 611, a lower limit plane 612, a push-down inclined surface 621 and an upper limit plane 622 is formed between the needle returning cam 62 and the needle raising cam 61.

The length of the running path on the two groups of sedimentation cams 6 is respectively longer than the length of the needle lifting section and the needle returning section of the corresponding knitting needle, and the whole process control can be carried out on the sinker in the needle lifting section or the needle returning section, so that the adjacent ends of the two adjacent groups of sedimentation cams 6 are required to be butted, meanwhile, the adjacent ends of the two sedimentation cams 6 in each group are also required to be butted, the adjacent ends of the two sedimentation cams 6 in each group and the two sedimentation cams 6 adjacent to each other in each group are respectively provided with a step structure which can be mutually fit and accommodated, the structure after the four sedimentation cams 6 are butted is as shown in fig. 6, the 6-1 part of fig. 6 is a front view after the four sedimentation cams 6 are butted, and the 6-2 part is a top view after the four sedimentation cams 6 are butted; the step structure in the sedimentation cams enables the formed sinker butt running path B to be a continuous path, gaps exist in the running path due to the gaps between the two adjacent sedimentation cams 6, continuous sliding of the sinker butt is not affected, and the butt running is stable.

The four sedimentation cams 6 on the sedimentation cam base plate 5 are pushed to move up and down by a pushing component, the pushing component also comprises a sliding pin 63 and a pushing block 7, as shown in a 7-2 part in fig. 7, three sliding grooves 70 with widths matched with the sliding pin 63 and containing inclined guide surfaces are arranged on the pushing block 7, the sliding pin 63 penetrates through the sedimentation cam base plate 5 and is slidably arranged in the sliding grooves 70, the pushing block 7 is pushed, and the sliding pin 63 slides along the inclined guide surfaces in the sliding grooves 70, so that the sedimentation cam 6 is pushed to move up to the high position or move down to the low position along the sedimentation cam base plate 5.

The slide pins 63 of the outer two settling triangles among the four settling triangles 6 slide in the outer two slide grooves 70, respectively, and the slide pins 63 of the middle two settling triangles slide in the middle slide groove 70.

During loop transfer knitting, in the needle starting section, a corresponding group of sedimentation cams 6 need to work, namely are in a high position, in the loop receiving and needle returning section, the sedimentation cams 6 corresponding to the first needle returning section can be in a low position through the arrangement of the sliding grooves 70 and the pushing of the pushing blocks 7, at the moment, the sedimentation cams 6 corresponding to the second needle returning section are in a high position, the positions of the sedimentation cams 6 and the sliding blocks 7 are shown in fig. 7, in the state, the sinker of the needle starting section is in a working position, the action end can always act on a cylinder opening coil and an arc line, the action effect is optimal, the sinker is in an inactive position before the first needle returning stage of the loop receiving needle is ended, the action end does not act on the arc line between the cylinder opening coil and the coil, and the sinker returns to the action position when the second needle returning section of the loop receiving needle begins to return, and can act on the arc line between the cylinder opening coil and the coil again, as shown in the 7-1 part in fig. 7.

When the sinker cam of the present embodiment corresponds to other knitting, the push block 7 is pushed to form a high-position state and a low-position state of the sinker cam adapted to the corresponding needle raising section and the needle returning section, as shown in fig. 8-12, so as to adapt to different knitting requirements, which are not described in detail herein.

Referring to fig. 13, in this embodiment, in order to guide the up-and-down movement of the sedimentation triangle 6 on the sedimentation triangle bottom plate 5, a bar-shaped hole 50 is provided on the sedimentation triangle bottom plate 5 corresponding to the sliding pin 63, the sliding pin 63 passes through the bar-shaped hole 50 and is slidably connected with the bar-shaped hole 50, the sedimentation triangle 6 is further provided with a guiding pin 64 in the vertical direction of the sliding pin 63, the guiding pin 64 is slidably connected in the bar-shaped hole 50, and the guiding pin 64 and the sliding pin 63 together guide the up-and-down movement of the sedimentation triangle 6, so as to prevent the sedimentation triangle 6 from rotating in the up-and-down movement process.

The four sinker cams 6 of the embodiment can always act on the arc line between the nozzle coil and the coil at the acting end of the sinker at the needle starting section of the knitting needle by pushing the push block 7, so that the acting effect is optimal, meanwhile, the condition that the front end of the sinker does not act on the nozzle coil and the arc line before the end of the first loop-returning stage of the loop-joining needle during loop transfer can be completely satisfied, and the sinker can act on the arc line between the nozzle coil and the coil again when the second loop-returning section of the loop-joining needle begins, thereby effectively solving the defects existing in the first embodiment and the second embodiment, solving the monofilament problem and keeping the fabric density in a better state.

The technical scheme of the invention is not limited to the embodiments, and all technical schemes obtained by adopting equivalent substitution modes fall within the scope of the invention.

Claims (10)

1. The method for preventing the loop-joining needle from returning to the needle monofilament during loop-transferring knitting of the horizontal knitting machine comprises a pair of needle plates which are symmetrically arranged in front and back and are respectively provided with a plurality of knitting needles, a plurality of sinkers arranged at the front end of the needle plates, a cam base plate which is provided with a plurality of knitting cams and transversely moves above the needle plates, a sinker cam base plate which is provided with sinker cams and is connected with the upper side edge of the cam base plate, and a pushing component for pushing the sinker cams to move; during loop transfer knitting, a loop on a loop transfer knitting needle is transferred to a loop receiving knitting needle, a sinker is under the action of a sinker cam and is positioned at a working position or a non-working position which is not in action on an arc line between the loop and the loop, and the sinker is positioned at the working position or the non-working position at a needle lifting section of loop transfer knitting, and is characterized in that: in the loop-transferring knitting loop-back needle section, the sinker is in the working position.

2. The method for preventing the loop pick from returning to the needle monofilament during loop transfer knitting of the flat knitting machine according to claim 1, wherein the method comprises the following steps: the loop back needle section comprises a first back needle section and a second back needle section; the sinker is in the working position in the first and second needle return sections, respectively, or in the working position only in the second needle return section.

3. Method for preventing the return of the loop needle to the needle filament during loop transfer knitting of a flat knitting machine according to claim 1 or 2, characterized in that: the sedimentation triangle is pushed by the pushing component to move up to a high position or move down to a low position, and consists of a sedimentation bottom plate, a needle-together triangle which is arranged on the sedimentation bottom plate and provided with a pushing inclined plane and a lower limit plane, and a needle-returning triangle which is arranged on the sedimentation bottom plate and provided with a pushing inclined plane and an upper limit plane, wherein the needle-returning triangle and the needle-returning triangle are arranged up and down oppositely, and a running path of the sinker butt is formed between the needle-returning triangle and the needle-returning triangle.

4. A method for preventing loop back needle monofilament in loop transfer knitting of a flat knitting machine according to claim 3, comprising the steps of: the two settlement cams are arranged symmetrically left and right relative to the symmetrical central line of a knitting area formed by a plurality of knitting cams on the cam base plate, are arranged in a vertically slidable manner, and correspond to the needle lifting section and the needle returning section respectively.

5. The method for preventing the loop pick from returning to the needle monofilament during loop transfer knitting of the flat knitting machine according to claim 4, wherein the method comprises the following steps: the length of the running path on each sedimentation triangle is longer than that of the needle lifting section or the needle returning section so as to carry out full-section control on the sinker in the needle lifting section or the needle returning section; or the length of the running path on the sedimentation triangle is shorter than that of the needle lifting section or the needle returning section so as to locally control the sinker in the needle lifting section or the needle returning section.

6. A method for preventing loop back needle monofilament in loop transfer knitting of a flat knitting machine according to claim 3, comprising the steps of: the settlement cams are arranged in a group of four pairs, two settlement cams in each group are arranged left and right, and the two settlement cams are symmetrically arranged left and right relative to the symmetrical center line of a knitting area formed by a plurality of knitting cams on a cam base plate and correspond to a needle lifting section and a needle returning section respectively.

7. The method for preventing the loop pick from returning to the needle filament when the flat knitting machine moves to knit according to claim 6, wherein the method comprises the following steps: two sedimentation cams in each group and adjacent ends of the two sedimentation cams adjacent to each group are respectively provided with a step structure which can be mutually attached and accommodated.

8. The method for preventing the loop pick from returning to the needle monofilament during loop transfer knitting of the flat knitting machine according to claim 6 or 7, wherein the method comprises the following steps: the two sedimentation cams in each group are arranged at high position or at low position to form a sinker butt running path with length longer than that of the needle lifting section or the needle returning section so as to control the whole course of the sinker in the needle lifting section or the needle returning section; or the two sinker cams in each group are respectively arranged at a high position and a low position to form a sinker butt running path with the length shorter than that of the needle lifting section or the needle returning section so as to locally control the sinker in the needle lifting section or the needle returning section.

9. The method for preventing the loop pick from returning to the needle monofilament during loop transfer knitting of the flat knitting machine according to claim 1, wherein the method comprises the following steps: the pushing assembly comprises a sliding pin and a pushing block which is pushed by a straight line, wherein the pushing block is provided with a sliding groove with the width matched with that of the sliding pin and containing an inclined guide surface, the sliding pin is connected to a sedimentation triangle and is slidingly arranged in the sliding groove, and the sedimentation triangle moves upwards or downwards when the pushing block is pushed and the sliding pin slides along the inclined guide surface in the sliding groove.

10. The method for preventing the loop pick from returning to the needle monofilament during loop transfer knitting of the flat knitting machine according to claim 9, wherein the method comprises the following steps: the pushing block is provided with a sliding groove or a plurality of sliding grooves, each sliding groove is connected with at least one sliding pin connected with the sedimentation triangle in a sliding manner, and the pushing block drives one or a plurality of sedimentation triangles to move up and down when being pushed.