CN213061264U

CN213061264U - Warp knitting machine for knitting grey cloth with different density intervals

Info

Publication number: CN213061264U
Application number: CN202020193121.3U
Authority: CN
Inventors: 郑春乐; 柳炎忠; 徐少军
Original assignee: Fujian Xin Gang Textile Machinery Co ltd
Current assignee: Fujian Xin Gang Textile Machinery Co ltd
Priority date: 2020-02-21
Filing date: 2020-02-21
Publication date: 2021-04-27
Anticipated expiration: 2030-02-21

Abstract

The utility model relates to a warp knitting machine for knitting grey cloth with different density intervals, which comprises one or more guide bars, groove needles and sinkers, wherein the guide bars comprise yarn guide needles, the groove needles are densely and transversely arranged, and the arranged groove needles are in a continuous trapezoidal shape in the vertical direction; the arrangement of the yarn guide needles corresponds to that of the groove needles and is matched with the groove needles for yarn padding; the arrangement of the sinkers corresponding to the slot needles is also in a continuous trapezoid shape; the grey cloth with different density intervals can be obtained, a novel fabric is developed, and the market of the novel fabric is greatly expanded; the warp knitting machine with smaller width can be used for knitting grey cloth with larger width, and the warp knitting machine has much smaller width under the condition of obtaining the same width grey cloth, thereby facilitating transportation, reducing the length requirements of equipment such as occupied area, main shafts and the like; the woven grey cloth has a wider application range, and the weaving requirement of large-size complete grey cloth is met.

Description

Warp knitting machine for knitting grey cloth with different density intervals

Technical Field

The utility model belongs to the technical field of the tricot machine and specifically relates to a tricot machine for weaving grey cloth with different density intervals.

Background

Warp knitting refers to a process of forming a knitted fabric by feeding one or more sets of yarns arranged in parallel to all working needles of a knitting machine in a warp direction and simultaneously knitting the yarns into loops, wherein the knitted fabric knitted by the method becomes a warp knitted fabric, and the knitting machine for completing the process is called a warp knitting machine; due to the above characteristics of the existing warp knitting machine, the density degree of the common knitted grey cloth is the same, but with the current demand of full aim, the demand and the application of the grey cloth with different density degrees have larger markets, such as semi-transparent curtains for simulating the effect of shutters, various decorative fabrics and the like. The existing warp knitting machine is difficult to realize the grey fabric effect.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides a warp knitting machine for knitting grey cloth with different density intervals, which can obtain grey cloth with different density intervals, thus developing a new type of fabric and greatly expanding the market of the new type of fabric; the warp knitting machine with smaller width can be used for knitting grey cloth with larger width, and the warp knitting machine has much smaller width under the condition of obtaining the same width grey cloth, thereby facilitating transportation, reducing the length requirements of equipment such as occupied area, main shafts and the like; when the warp knitting machine with the same width is used, the utility model discloses can obtain the grey cloth that the width is far greater, make the grey cloth that weaves have bigger range of application, satisfy the weaving demand of the complete grey cloth of jumbo size.

The technical scheme of the utility model as follows:

the first scheme is as follows:

a warp knitting machine for knitting grey cloth with different density intervals comprises one or more guide bars, groove needles and sinkers, wherein the guide bars comprise guide needles, the groove needles are densely and transversely arranged, the arranged groove needles are in a continuous trapezoid shape in the vertical direction, and the space between every two adjacent groove needles is the same; (ii) a The arrangement of the yarn guide needles corresponds to that of the groove needles and is matched with the groove needles for yarn padding; the sinker is also in a continuous trapezoid shape corresponding to the arrangement of the slot needles.

Wherein the guide bar horizontally moves, and the yarn guide needle only moves one needle pitch or two needle pitches; the horizontal position of the yarn guide needle is lower than that of the yarn guide needle with a lower position in the transverse moving stroke.

The guide bars are provided with a plurality of groups, the guide bars are respectively inclined or horizontally arranged corresponding to groove needles with a height of being an inclined or horizontal straight line, and the transverse moving directions of the guide bars are respectively parallel to the corresponding inclined straight lines or horizontal straight lines, so that the guide bars can be transversely moved with multiple needle pitches to realize multi-needle-pitch yarn laying.

Among the grooved needles arranged to form two inclined sides of the trapezoid, the height difference between two adjacent grooved needles is 0.5 to 1 time of the hook length L1.

Wherein the bottoms of the densely arranged grooved needles are fixed on the seat sheet; the densely arranged groove needles are in a continuous ladder shape in the vertical direction through length change.

Wherein, the seat sheet is densely provided with fixing slots for arranging slot needles, latch needles or hook needles; the height of the fixed slot is changed in proportion to the length change of the slot needle so as to ensure the strength of the slot needle; the height of adjacent fixing slots does not vary by more than 1 hook length L1.

Wherein the guide needle is fixed by a guide needle holder fixed on the guide bar; the length of the guide needle holder is changed proportionally according to the length change of the guide needle; the length of adjacent guide needle holders does not vary more than 1 hook length L1.

Wherein the warp knitting machine further comprises a drawing and curling mechanism; the drawing and curling mechanism at least sequentially comprises a shuttle roller and a flat roller; the shuttle roll first pulls the greige cloth from the looping zone; the width L2 of the shuttle roller is the same as the width of the warp knitting machine, and the length L3 of the connecting line of the two ends of the shuttle roller along the surface is the same as the width of the grey cloth.

Scheme II:

a warp knitting machine for knitting grey cloth with different density intervals comprises a guide bar, latch needles, sinkers, a cut-shaped knocking-over plate and a needle tongue self-closing prevention steel wire, wherein the guide bar comprises guide needles, the latch needles are densely and transversely arranged, the arranged latch needles are in a continuous ladder shape in the vertical direction, and the space between every two adjacent latch needles is the same; the arrangement of the yarn guide needles corresponds to that of the latch needles and is matched with the latch needles for yarn padding; the sinker, the deleted knocking-over plate and the needle tongue self-closing prevention steel wire are respectively arranged in a continuous ladder shape corresponding to the latch needle.

The guide bars are provided with a plurality of groups, the groups correspond to latch needles with the heights being inclined or horizontal straight lines respectively, the latch needles are inclined or horizontally arranged, and the transverse moving directions of the guide bars are parallel to the inclined straight lines or the horizontal straight lines correspondingly respectively, so that the guide bars can move transversely with multiple needle pitches to realize multi-needle-pitch yarn laying.

Among the latch needles arranged to form two oblique sides of the trapezoid, the height difference between two adjacent latch needles is 0.5 to 1 time of the hook length L1.

Wherein the bottoms of the densely arranged latch needles are fixed on the seat sheet; the densely arranged latch needles realize a continuous trapezoidal shape in the vertical direction through length change.

Wherein, the seat sheet is densely provided with fixing slots for arranging latch needles; the height of the fixed slot is changed in proportion to the length change of the latch needle so as to ensure the strength of the latch needle; the height of adjacent fixing slots does not vary by more than 1 hook length L1.

The third scheme is as follows:

a warp knitting machine for knitting grey cloth with different density intervals comprises a guide bar, crochet hooks, sinkers and pressing plates, wherein the guide bar comprises guide needles, the crochet hooks are densely and transversely arranged, the arranged crochet hooks are in a continuous trapezoid shape in the vertical direction, and the space between every two adjacent crochet hooks is the same; the yarn guide needles, the sinkers and the pressing plates are arranged in a continuous trapezoidal shape corresponding to the crochet needles respectively.

The guide bars are provided with a plurality of groups, the groups correspond to the crochet hook inclined or horizontal arrangement with the height of an inclined or horizontal straight line respectively, and the transverse moving directions of the guide bars are parallel to the inclined or horizontal straight lines respectively, so that the guide bars can move transversely with multiple needle pitches to realize the padding with multiple needle pitches.

Among the crochet hooks arranged to form two inclined sides of the trapezoid, the height difference between two adjacent crochet hooks is 0.5 to 1 time of the length L1 of the crochet hook.

Wherein the bottoms of the densely arranged crochet hooks are fixed on the seat sheet; the densely arranged crochet hooks realize a continuous ladder shape in the vertical direction through length change.

Wherein, the seat sheet is densely provided with fixing slots for arranging the crochet hook; the height of the fixed slot is changed in proportion to the length change of the crochet hook so as to ensure the strength of the crochet hook; the height of adjacent fixing slots does not vary by more than 1 hook length L1.

The utility model discloses following beneficial effect has:

the warp knitting machine for knitting the grey cloth with different density intervals can obtain the grey cloth with different density intervals, develops a novel fabric, and greatly expands the market of the novel fabric; the warp knitting machine with smaller width can be used for knitting grey cloth with larger width, and the warp knitting machine has much smaller width under the condition of obtaining the same width grey cloth, thereby facilitating transportation, reducing the length requirements of equipment such as occupied area, main shafts and the like; when the warp knitting machine with the same width is used, the utility model discloses can obtain the grey cloth that the width is far greater, make the grey cloth that weaves have bigger range of application, satisfy the weaving demand of the complete grey cloth of jumbo size.

The distance between the adjacent knitting needles is the same, and because the knitting needles at the two bevel edges of the trapezoid are different in top end height and are arranged in an inclined straight line, the length of the top end connecting line of the two adjacent knitting needles at the position is larger than the horizontal distance between the two knitting needles, so after knitting, the horizontal meshes of the part of the grey cloth are larger and wider than the meshes formed at the knitting needle position of the horizontal straight line, and although or even if the traverse gauge of all the guide needles is the same, the grey cloth can still form a special structure which is sparser corresponding to the two bevel edges of the trapezoid and denser corresponding to the upper horizontal edge of the trapezoid, thereby meeting the diversified requirements of modern knitted fabrics.

Compared with the traditional warp knitting machine, the warp knitting machine has the advantages that the specific looping and weft insertion processes are not different greatly, so that the technology is more perfect, the warp knitting machine is convenient to popularize, and even under the condition that the power mechanism of the traditional warp knitting machine is reserved, the warp knitting machine applying for the old warp knitting machine can be reformed by only properly reforming the looping mechanism.

The warp knitting machine utilizes the shuttle-shaped roller to flatten the gray fabric knitted by the knitting needles arranged in a continuous trapezoid manner, and the shuttle-shaped roller is provided with an arc surface with a bulged middle part, the axial length of the arc surface is the same as the width of the flattened gray fabric, and the length between two ends of the shuttle-shaped roller is the same as the width of the warp knitting machine, so that the gray fabric is flattened along the arc surface of the shuttle-shaped roller in the process of drawing and guiding the gray fabric; and then, a straight roller with the same width as the width of the grey cloth is used, so that transition can be realized, and finally, the grey cloth is wound on the straight roller with the same width as the grey cloth.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a single-unit looping mechanism when the grooved needle is adopted in the present invention;

FIG. 3 is a schematic view of the grooved needle of the present invention;

FIG. 4 is a schematic view of a single-unit looping mechanism when the latch needle is used in the present invention;

FIG. 5 is a schematic view of the latch needle of the present invention;

FIG. 6 is a schematic view of a single-unit looping mechanism when the present invention employs a crochet hook;

FIG. 7 is a schematic view of the crochet hook of the present invention;

fig. 8 is a schematic view of the shuttle roller of the present invention.

The reference numbers in the figures denote:

1-grooved needle, 2-yarn guide needle, 3-sinker, 4-cut-off-shaped knock-over plate, 6-steel wire for preventing self-closing of needle latch, 7-crochet needle, 8-pressing plate, 9-seat sheet, 91-fixed slot, 10-latch needle, 11-shuttle roller and 12-flat roller.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

The first embodiment is as follows:

referring to fig. 1 to 3 and 8, a warp knitting machine for knitting a gray fabric having different density intervals includes one or more guide bars including guide needles 2, grooved needles 1 arranged densely and transversely and the arranged grooved needles 1 forming a continuous ladder shape in a vertical direction, and sinkers 3, the pitches of the adjacent grooved needles 1 being the same; the arrangement of the yarn guide needles 2 corresponds to that of the groove needles 1, and yarn padding is carried out by matching with the groove needles 1; the sinker 3 is also in a continuous ladder shape corresponding to the arrangement of the slot needles 1.

Further, the guide bar can be selected to horizontally traverse or obliquely move parallel to the running direction of the grooved needle 1, and when the horizontal traverse is selected, the guide needle 2 only traverses one needle pitch or two needle pitches; the horizontal position of the yarn guide needle 2 is lower than the yarn guide needle 2 with a lower position in the traverse stroke, because the grooved needles 1 are arranged into a continuous trapezoid, the height of each grooved needle 1 is gradually changed, the yarn guide needle 2 and the weft insertion yarn guide needle 13 cannot transversely move too much needle pitch, because the height difference of two grooved needles 1 separating too much needle pitch is overlarge, the yarn cushion and weft insertion are not facilitated, and through tests, the yarn guide needle 2 transversely moves one or two needle pitches to stably cushion yarn only by limiting the height difference of the adjacent grooved needles 1 to be 0.5 to 1 time of the length L1 of a needle hook; when the inclined movement is selected, the guide bars are provided with a plurality of groups, the guide bars are respectively inclined or horizontally arranged corresponding to the groove needles 1 with the height being an inclined straight line or a horizontal straight line, and the transverse moving directions of the guide bars are respectively parallel to the corresponding inclined straight lines or the horizontal straight lines, so that the guide bars can be transversely moved with multiple needle pitches, and the needle pitch of the yarn laying transverse moving can be selected according to the process requirement.

Further, the bottoms of the densely arranged grooved needles 1 are fixed on the seat piece 9; the densely arranged grooved needles 1 realize continuous trapezoidal fluctuation in the vertical direction through length change; the arrangement is to avoid the need of redesigning a driving mechanism, and the driving mechanism of the existing warp knitting machine can realize continuous trapezoidal synchronous lifting, yarn hooking and looping. Because the length of the grooved needle 1 is different due to the arrangement, in order to guarantee the structural strength and stability of the grooved needle 1, fixing slots 91 for accommodating the grooved needle 1 are densely distributed on the seat piece 9; the height of the fixed slot 91 is changed proportionally according to the length change of the slot needle 1 so as to ensure the strength of the slot needle 1; the height of adjacent fixing slots 91 does not vary more than 1 hook length L1. The arrangement ensures that the working lengths of the slot needles 1 are the same although the lengths are different, and the slot needles have the same or similar performance and cannot generate instability; meanwhile, the height synchronous change of the fixed slot 91 is limited, and the interaction of the slot needle 1 and the sinker cannot be influenced.

Further, the warp knitting machine further comprises a drawing and curling mechanism; the drawing and curling mechanism at least comprises a shuttle roller 11 and a flat roller 12 in sequence; the shuttle roller 11 first pulls the blank from the loop-forming zone.

Further, the width L2 of the shuttle roller 11 is the same as the width of the warp knitting machine, and the length L3 of the connecting line of the two ends of the shuttle roller 11 along the surface is the same as the width of the grey cloth; the warp knitting machine utilizes the shuttle-shaped roller 11 to flatten the grey cloth knitted by the knitting needles arranged in a continuous trapezoid, and because the shuttle-shaped roller 11 has a cambered surface with a bulged middle part, the axial length of the cambered surface is the same as the width of the flattened grey cloth, and the length between two ends of the shuttle-shaped roller 11 is the same as the width of the warp knitting machine, the grey cloth is flattened along the cambered surface of the shuttle-shaped roller 11 in the process of drawing and guiding the grey cloth; then, a straight roller 12 with the same width as the width of the grey cloth is used, so that transition can be realized, and finally, the grey cloth is wound on the straight roller 12 with the same width as the grey cloth; in addition, the change from the shuttle roller 11 to the straight roller 12 can be realized through gradual change, namely, the plurality of shuttle rollers 11 are utilized, the width of the plurality of shuttle rollers 11 is gradually increased, but the length of the axial arc surface is kept the same as the width of the grey cloth, so that the curvature of the arc surface is gradually reduced, the radius of the arc surface is gradually increased, the arc surface finally becomes the straight roller, and the transitional drawing of the quick change to the grey cloth can be reduced.

Further, the guide needle 2 is fixed by a guide needle holder fixed on the guide bar; the length of the guide needle holder is changed proportionally to the change of the length of the guide needle 2; the length of adjacent guide needle holders does not vary more than 1 hook length L1. This arrangement allows the guide needles 2 to have the same working length, have the same or similar properties, and do not cause instability, although they have different lengths.

The operating principle of the warp knitting machine of the embodiment is as follows: the looping process is not substantially different from the existing warp knitting machine, the guide bar can select horizontal shogging or the movement which is parallel to the running direction of the groove needle 1 and is combined with the horizontal direction, and when the horizontal shogging is selected, only the guide needle 2 only moves one or two needle spaces; when the inclined movement is selected, the guide bars are provided with a plurality of groups, the guide bars are respectively arranged in an inclined and horizontal mode corresponding to the groove needles 1 with the height being an inclined straight line or a horizontal straight line, and the shogging directions of the guide bars are respectively parallel to the corresponding inclined straight line or the horizontal straight line, so that the guide bars can be shogging with multiple needle pitches, and the multi-needle pitch chaining is respectively realized; gradually flattening the grey fabric through a gradually changed shuttle roller 11 in the drawing process, and finally curling the grey fabric on a straight roller 12; the distance between the adjacent groove needles 1 is the same, although or even if the traverse gauge of all the yarn guide needles 2 is the same, because the top ends of the groove needles 1 at the two inclined edges of the trapezoid are different in height and are arranged in an inclined straight line, the length of the top end connecting line of the two adjacent groove needles 1 at the position is larger than the horizontal distance between the two groove needles, after knitting, the horizontal meshes of the part of the grey cloth are larger and wider than the meshes formed at the position of the groove needles 1 which are in the horizontal straight line, so that the grey cloth forms a special structure which is sparser corresponding to the two inclined edges of the trapezoid and denser corresponding to the upper horizontal edge of the trapezoid, and the requirement of diversification of modern knitted fabrics is met.

Example two:

referring to fig. 1, 4, 5 and 8, a warp knitting machine for knitting grey cloth with different density intervals comprises a guide bar, latch needles 10, sinkers 3, a cut-off type knocking over plate 4 and a needle tongue self-closing prevention steel wire 6, wherein the guide bar comprises yarn guide needles 2, the latch needles 10 are densely and transversely arranged, the arranged latch needles 10 are in a continuous ladder shape in the vertical direction, and the intervals between the adjacent latch needles 10 are the same; the arrangement of the yarn guide needles 2 corresponds to that of the latch needles 10, and yarn padding is carried out by matching with the latch needles 10; the sinker 3, the deletion-shaped knockover plate 4 and the needle tongue self-closing prevention steel wire 6 are respectively arranged in a continuous ladder shape corresponding to the latch needles 10.

Further, the guide bar can be selected to horizontally traverse or incline or horizontally move parallel to the running direction of the latch needle 10, and when the horizontal traverse is selected, the guide needle 2 only traverses one needle space or two needle spaces; the horizontal position of the yarn guide needle 2 is lower than the yarn guide needle 2 with a lower position in the traverse stroke, and as the latch needles 10 are arranged into a continuous trapezoid, the height of each latch needle 10 is gradually changed at two oblique sides of the trapezoid, the yarn guide needle 2 cannot transversely move too much needle pitch at the two oblique sides, and the height difference of two latch needles 10 separating too much needle pitch is too large to facilitate yarn cushion, through tests, the yarn guide needle 2 transversely moves one or two needle pitches to stably cushion yarn only by limiting the height difference of the adjacent latch needles 10 to be 0.5 to 1 time of the needle hook length L1; when the inclined movement is selected, the guide bars are provided with a plurality of groups, the latch needles 10 which respectively correspond to the height to form an inclined straight line or a horizontal straight line are arranged obliquely or horizontally, and the shogging directions of the guide bars are respectively parallel to the corresponding inclined straight line or the horizontal straight line, so that the guide bars can be shogging with multiple needle pitches, and the needle pitch of the knitted chain shogging can be selected according to the process requirement.

Further, the bottoms of the densely arranged latch needles 10 are fixed on the seat sheet 9; the densely arranged latch needles 10 realize a continuous trapezoid in the vertical direction through length variation; in order to avoid the need of redesigning a driving mechanism, the driving mechanism of the existing warp knitting machine can realize synchronous and stable lifting, yarn hooking and looping of the latch needles 10 which are continuously and trapezoidally arranged. Because the length of the latch needle 10 is different due to the arrangement, in order to guarantee the structural strength and stability of the latch needle 10, fixing slots 91 for installing the latch needle 10 are densely distributed on the seat sheet 9; the height of the fixing slot 91 is changed in proportion to the length change of the latch needle 10 so as to ensure the strength of the latch needle 10; the height of adjacent fixing slots 91 does not vary more than 1 hook length L1. The arrangement ensures that the latch needles 10 have the same working length and the same or similar performance although the lengths are different, and cannot generate instability; and meanwhile, the synchronous height change of the fixing slot 91 is limited, and the interaction between the latch needle 10 and the sinker cannot be influenced.

The operating principle of the warp knitting machine of the embodiment is as follows: the looping process is not substantially different from the existing warp knitting machine, the guide bar can select horizontal shogging or the movement combining the inclination parallel to the running direction of the latch needle 10 and the horizontal movement, and when the horizontal shogging is selected, only the guide needle 2 only moves one or two needle spaces; when the inclination and the horizontal movement are selected, the guide bars are provided with a plurality of groups, the latch needles 10 which respectively correspond to the heights and form an inclined straight line or a horizontal straight line are arranged obliquely or horizontally, and the shogging directions of the guide bars are respectively parallel to the corresponding inclined straight line or the horizontal straight line, so that the guide bars can be shogging with multiple needle pitches, and the multi-needle pitch chaining is realized respectively; gradually flattening the grey fabric through a gradually changed shuttle roller 11 in the drawing process, and finally curling the grey fabric on a straight roller 12; the distance between the adjacent latch needles 10 is the same, although or even though the traverse gauge of all the yarn guide needles 2 is the same, because the top ends of the latch needles 10 at the two inclined sides of the trapezoid are different in height and are arranged in an inclined straight line, the length of the top end connecting line of the two adjacent latch needles 10 at the position is larger than the horizontal distance between the two latch needles, after knitting, the horizontal meshes of the part of the grey cloth are larger and wider than the meshes formed at the latch needles 10 which are in the horizontal straight line, so that the grey cloth forms a special structure which is sparser corresponding to the two inclined sides of the trapezoid and denser corresponding to the upper horizontal side of the trapezoid, and the requirement of diversification of modern knitted fabrics is met.

Example three:

referring to fig. 1, 6, 7 and 8, a warp knitting machine for knitting grey cloth with different density intervals comprises a guide bar, crochet hooks 7, sinkers 3 and a pressing plate 8, wherein the guide bar comprises guide needles 2, the crochet hooks 7 are densely and transversely arranged, the arranged crochet hooks 7 are in a continuous ladder shape in the vertical direction, and the distances between the adjacent crochet hooks 7 are the same; the yarn guide needles 2, the sinkers 3 and the pressing plates 8 are also arranged in a continuous trapezoidal shape corresponding to the arrangement of the crochet hooks 7.

Further, the guide bar can be horizontally moved in combination with the horizontal traversing or the inclination parallel to the running direction of the crochet hook 7, and when the horizontal traversing is selected, the guide needle 2 only traverses one needle space or two needle spaces; the horizontal position of the yarn guide needle 2 is lower than the yarn guide needle 2 with a lower position in the traverse stroke, because the crochet hooks 7 are arranged into a continuous trapezoid, the height of each crochet hook 7 is gradually changed at two inclined sides of the trapezoid, the yarn guide needle 2 cannot traverse too much needle pitch, because the height difference of two crochet hooks 7 separating too much needle pitch is overlarge, which is not beneficial to yarn cushion, and through tests, the yarn guide needle 2 only needs to limit the height difference of the adjacent crochet hooks 7 to be 0.5 to 1 time of needle hook length L1, and traverse one or two needle pitches to stably cushion yarn; when the inclination is combined with the horizontal movement, the guide bars are provided with a plurality of groups, the hook needles 7 which respectively correspond to the height to form an inclined straight line or a horizontal straight line are arranged obliquely or horizontally, and the shogging directions of the guide bars are respectively parallel to the corresponding inclined straight line or the horizontal straight line, so that the guide bars can be shogging with multiple needle pitches, and the needle pitch of the knitted chain shogging can be selected according to the process requirement.

Further, the bottoms of the densely arranged crochet hooks 7 are fixed on a seat sheet 9; the densely arranged crochet hooks 7 realize continuous trapezoidal fluctuation in the vertical direction through length change; in order to avoid the need of redesigning a driving mechanism, the driving mechanism of the existing warp knitting machine can realize synchronous and stable lifting, yarn hooking and looping of the continuous trapezoidal crochet hook 7. Because the length of the crochet hook 7 is different due to the arrangement, in order to guarantee the structural strength and stability of the crochet hook 7, fixing slots 91 for installing the crochet hook 7 are densely distributed on the seat piece 9; the height of the fixing slot 91 is changed in proportion to the length change of the crochet hook 7 to ensure the strength of the crochet hook 7; the height of adjacent fixing slots 91 does not vary more than 1 hook length L1. The arrangement ensures that the crochet hook 7 has the same working length and the same or similar performance although the length is different, and cannot generate instability; and meanwhile, the height synchronous change of the fixed slot 91 is limited, and the interaction between the crochet hook 7 and the sinker cannot be influenced.

The operating principle of the warp knitting machine of the embodiment is as follows: the looping process is not substantially different from the existing warp knitting machine, the guide bar can select horizontal shogging or the inclination parallel to the running direction of the crochet hook 7 to combine with the horizontal movement, and when the horizontal shogging is selected, only the guide needle 2 only moves one or two needle spaces; when the inclined movement is selected, the guide bars are provided with a plurality of groups, the groups are respectively inclined or horizontally arranged corresponding to the crochet hooks 7 with the height being an inclined straight line or a horizontal straight line, and the shogging directions of the guide bars are respectively parallel to the corresponding inclined straight line or the horizontal straight line, so that the guide bars can be shogging with multiple needle pitches, and the multi-needle pitch chaining is respectively realized; in the drawing process, the grey cloth is gradually flattened by the gradually changed shuttle-shaped roller 11 and is finally curled on the straight roller 12, the distance between the adjacent crochet hooks 7 is the same, although or even if the traverse needle pitch of all the yarn guide needles 2 is the same, because the crochet hooks 7 at the two inclined edges of the trapezoid are different in top end height and are arranged in an inclined straight line, the length of the top end connecting line of the two adjacent crochet hooks 7 at the position is larger than the horizontal distance between the two crochet hooks, after knitting, the horizontal mesh of the grey cloth at the part is larger and wider than the mesh formed at the position of the crochet hooks 7 which are horizontal straight lines, so the grey cloth forms a special structure which is sparsely corresponding to the two inclined edges of the trapezoid and is dense corresponding to the upper horizontal edge of the trapezoid, and the requirement of diversification of modern knitted.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. Warp knitting machine for knitting grey fabrics with different density intervals, comprising one or more guide bars, grooved needles (1) and sinkers (3), said guide bars comprising guide needles (2), characterized in that: the grooved needles (1) are densely and transversely arranged, the arranged grooved needles (1) are in a continuous trapezoidal shape in the vertical direction, and the distances between the adjacent grooved needles (1) are the same; the arrangement of the yarn guide needles (2) corresponds to that of the groove needles (1) and is matched with the groove needles (1) for yarn laying; the sinker (3) is also in a continuous trapezoid shape corresponding to the arrangement of the slot needle (1).

2. A warp knitting machine for knitting grey fabrics with different density intervals, comprising a guide bar, latch needles (10), sinkers (3), a deleting-shaped knockover plate (4) and a latch self-closing prevention steel wire (6), wherein the guide bar comprises guide needles (2), characterized in that: the latch needles (10) are densely and transversely arranged, the arranged latch needles (10) are in a continuous ladder shape in the vertical direction, and the distance between every two adjacent latch needles (10) is the same; the arrangement of the yarn guide needles (2) corresponds to that of the latch needles (10) and is matched with the latch needles (10) for yarn laying; the sinker (3), the deleted knocking-over plate (4) and the needle tongue self-closing prevention steel wire (6) are respectively arranged in a continuous ladder shape corresponding to the latch needles (10).

3. A warp knitting machine for knitting grey fabrics with different density intervals, comprising a guide bar, a crochet hook (7), sinkers (3) and a presser plate (8), said guide bar comprising guide needles (2), characterized in that: the crochet hooks (7) are densely and transversely arranged, and the arranged crochet hooks (7) are in a continuous trapezoidal shape in the vertical direction; the distance between the adjacent crochet hooks (7) is the same; the yarn guide needles (2), the sinkers (3) and the pressing plates (8) are respectively arranged in a continuous trapezoidal shape corresponding to the crochet hooks (7).

4. A warp knitting machine for knitting a gray fabric having different density intervals as claimed in any one of claims 1 to 3, wherein: the guide bar horizontally moves, and the yarn guide needle (2) only moves one needle pitch or two needle pitches; the horizontal position of the yarn guide needle (2) is lower than the yarn guide needle (2) with a lower position in the traverse stroke.

5. A warp knitting machine for knitting a gray fabric having different density intervals as claimed in any one of claims 1 to 3, wherein: the guide bars are provided with a plurality of groups, the guide bars are respectively inclined or horizontally arranged corresponding to the groove needles (1) or the latch needles (10) or the crochet hooks (7) which are inclined or horizontally straight, and the transverse moving directions of the guide bars are respectively parallel to the inclined or horizontal straight lines of the corresponding arrangement of the groove needles (1) or the latch needles (10) or the crochet hooks (7), so that the guide bars can move transversely with multiple needle distances to realize the yarn laying with multiple needle distances.

6. A warp knitting machine for knitting a gray fabric having different density intervals as claimed in any one of claims 1 to 3, wherein: in the grooved needle (1) or the latch needle (10) or the crochet hook (7) which are arranged to form two inclined sides of the trapezoid, the height difference of two adjacent needles is 0.5 to 1 time of the hook length L1.

7. The warp knitting machine for knitting a blank having different density intervals as claimed in claim 6, wherein: the bottoms of the densely arranged grooved needles (1) or latch needles (10) or crochet needles (7) are fixed on the seat sheet (9); the densely arranged groove needles (1) or latch needles (10) or crochet hooks (7) realize a continuous trapezoidal shape in the vertical direction through length change.

8. The warp knitting machine for knitting a blank having different density intervals as claimed in claim 7, wherein: fixing slots (91) for arranging groove needles (1), latch needles (10) or crochet hooks (7) are densely distributed on the seat sheet (9); the height of the fixed slot (91) is changed in proportion according to the length change of the grooved needle (1), the latch needle (10) or the crochet hook (7) so as to ensure the strength of the grooved needle (1), the latch needle (10) or the crochet hook (7); the height of adjacent fixing slots (91) does not vary more than 1 hook length L1.

9. A warp knitting machine for knitting a gray fabric having different density intervals as claimed in any one of claims 1 to 3, wherein: the guide needle (2) is fixed by a guide needle retainer fixed on the guide bar; the length of the guide needle holder is changed proportionally according to the change of the length of the guide needle (2); the length of adjacent guide needle holders does not vary more than 1 hook length L1.

10. A warp knitting machine for knitting a gray fabric having different density intervals as claimed in any one of claims 1 to 3, wherein: the warp knitting machine further comprises a drawing and curling mechanism; the drawing and curling mechanism at least comprises a shuttle roller (11) and a flat roller (12) in sequence; the shuttle roller (11) firstly pulls the grey fabric from the loop forming area; the width L2 of the shuttle roller (11) is the same as the width of the warp knitting machine, and the length L3 of the connecting line of the two ends of the shuttle roller (11) along the surface is the same as the width of the grey cloth.