CN218372701U - Mountain board device with multi-density weaving - Google Patents

Abstract

The utility model discloses a mountain plate device with multi-density is woven, including the mountain plate, set up in first weaving unit, second on the mountain plate weave the unit and set up in homing triangle between the unit is woven to first, second, first, second weave the unit include the herringbone triangle, the stitch triangle, weave the triangle, the herringbone triangle is fixed set up in on the mountain plate, it sets up telescopically in the triangular below of herringbone to weave the triangle, the stitch triangle set up telescopically in the herringbone triangle with weave between the triangle, homing triangle's inside has the adjustment tank that runs through the bottom surface, be provided with adjustable flexible in the adjustment tank the adjustment block of homing triangle lower extreme. The utility model discloses in be applicable to the yarn of different materials, the yarn is inseparabler difficult broken string more, improves the quality of fabric greatly.

Description

Mountain board device with multi-density weaving

Technical Field

The utility model relates to a technical field of weaving equipment, in particular to mountain board device with multi-density is woven.

Background

The textile and clothing industry is not only the traditional industry of China, but also the important industry of the economic development of China, and the knitted product is taken as the important component of the textile product, and is deeply loved by the consumers with the advantages of softness, air permeability, close-fitting wearing and the like. With the development of science and technology, the computerized flat knitting machine gradually replaces the textile and clothing industry of the hand-operated flat knitting machine with the advantages of high speed, stable quality and the like, which is the traditional industry in China, and the mountain plate structure on the head of the computerized flat knitting machine can enable the knitting needles to complete actions such as needle turning, needle receiving, knitting, mesh hanging and the like. Two homing triangles are mostly adopted between the existing weaving units, so that the homing triangles are often required to be adjusted together when needing to be adjusted, and errors are easy to occur between the homing triangles. Thereby greatly increasing the production cost and reducing the quality of the fabric.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a technical problem that will solve provides a mountain board device with polydensity is woven, its rational in infrastructure, weave the unit and hang the mesh unit and realized the synchronization action of weaving, and be applicable to the yarn of different materials, the yarn is inseparable difficult broken string more, improves the quality of fabric greatly.

In order to achieve the above object, the utility model discloses a mountain plate device with multi-density is woven, including the mountain plate, set up first weaving unit, the second on the mountain plate and weave the unit and set up in homing triangle between the unit is woven to first, second, first, second weave the unit include the herringbone triangle, the stitch triangle, weave the triangle, the herringbone triangle is fixed set up in on the mountain plate, weave the triangle telescopically set up in the below of herringbone triangle, the stitch triangle telescopically set up in the herringbone triangle with weave between the triangle, the inside of homing triangle has the adjustment tank that runs through the bottom surface, be provided with adjustable flexible in the adjustment tank the adjustment block of homing triangle lower extreme.

Preferably, an arc convex surface for preventing the knitting needle from sinking is arranged in the center of the top surface of the knitting triangle.

Preferably, a first hill-protecting triangle and a second hill-protecting triangle are fixedly arranged on two sides of the front surface of the mountain plate respectively, and a left-needle-selecting large hill-protecting triangle, a middle-needle-selecting large hill-protecting triangle and a right-needle-selecting large hill-protecting triangle are arranged below the first hill-protecting triangle, the homing triangle and the second hill-protecting triangle respectively.

Preferably, the left needle selection large protection mountain, the middle needle selection large protection mountain and the right needle selection large protection mountain are respectively provided with a limiting groove, and a needle return triangle is inserted on the limiting grooves in a sliding manner.

Preferably, the first and second weaving units further include left and right stitch cams disposed at both sides of the chevron cam and slidably connected to the cam, and upper and lower sliding surfaces of the left and right stitch cams have a convex stitching surface, respectively.

Preferably, the vertex angle of the needle returning triangle is 100-120 degrees, and the needle returning triangle is respectively opposite to the returning triangle, the first mountain protecting triangle and the second mountain protecting triangle.

Preferably, the bottom of the cam plate is elastically inserted with a left needle selection lower cam, a middle needle selection lower cam and a right needle selection lower cam in a sliding manner, the left needle selection lower cam, the middle needle selection lower cam and the right needle selection lower cam are respectively provided with a slot member, and a triangular guide block is arranged inside the slot member.

Preferably, the knitting machine further comprises a first mesh hanging unit and a second mesh hanging unit, the first mesh hanging unit and the second mesh hanging unit are respectively arranged below the first knitting unit and the second knitting unit, the first mesh hanging unit and the second mesh hanging unit comprise a left mesh hanging triangle, a right mesh hanging triangle, a left needle receiving triangle and a right needle receiving triangle, the left needle receiving triangle and the right needle receiving triangle are symmetrically arranged, the left mesh hanging triangle and the left needle receiving triangle are arranged in parallel, and the right mesh hanging triangle and the right needle receiving triangle are arranged in parallel.

Preferably, the front face of the gable is respectively provided with a stitch sliding groove on two sides of the herringbone triangle, a stitch sliding seat is respectively arranged on the stitch sliding grooves in a sliding manner, and the left stitch triangle and the right stitch triangle are respectively fixedly arranged on the stitch sliding seat.

Preferably, the first weaving unit and the second weaving unit are respectively provided with a first linkage mechanism, the first eye hanging unit and the second eye hanging unit are respectively provided with a second linkage mechanism, and the first linkage mechanism and the second linkage mechanism are respectively driven by a driving device and are used for linking the first weaving unit and the second weaving unit and the first eye hanging unit and the second eye hanging unit to synchronously work.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the knitting unit and the mesh hanging unit realize the synchronous action of knitting, so that the knitting efficiency is effectively improved, and the mesh hanging function in the same row can be realized, thereby improving the compactness of the fabric, greatly simplifying the linkage structure of the knitting unit and the mesh hanging unit, and reducing the production cost of the mountain plate.

This application stitch triangle's upper and lower extreme all is provided with the plane of impressing for stitch triangle wherein one end wearing and tearing, the other end can be followed and used, has improved stitch triangle's life greatly, reduction in production cost, and the width of plane of impressing can be big or small, makes stitch triangle can be applicable to the yarn of different materials, prevents that the yarn from taking place the disconnection, and need not frequently to change different stitch triangles, has improved production efficiency greatly.

The adjusting block is inserted in the homing triangle in a sliding mode, and the adjusting block can be adjusted to stretch out of the adjusting groove under the condition that yarns are loose in the weaving process, so that the yarns are improved to be tighter.

The structure of the first linkage mechanism and the second linkage mechanism is greatly simplified, so that the first linkage mechanism and the second linkage mechanism are convenient to disassemble and assemble, complex steps are not needed, and the maintenance efficiency is greatly improved.

Drawings

FIG. 1 is a front view of the overall structure of the present invention;

FIG. 2 is a rear view of the overall structure of the present invention;

FIG. 3 is a schematic view of the overall structure of a stitch cam and a knitting cam;

FIG. 4 is a schematic view showing a structure of a portion A in FIG. 1;

fig. 5 is an exploded view of the overall structure of the second linkage mechanism;

FIG. 6 is a bottom view of the overall construction of the second linkage mechanism;

FIG. 7 is a front view of the overall construction of the stitch unit;

FIG. 8 is a schematic view of a stitch cam;

FIG. 9 is a schematic view of the overall structure of the homing triangle;

fig. 10 is a schematic view of the needle-flipping state of the present invention;

fig. 11 is a schematic view of the state of the needle joint of the present invention;

fig. 12 is a schematic view of the weaving state of the present invention;

fig. 13 is a schematic view of the eye hanging state of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, a mountain board device having multi-density knitting includes a mountain board 1, a first knitting unit 2 provided on the mountain board 1, a second knitting unit 2A, and a homing cam 8 provided between the first and second knitting units 2, 2A.

Referring to fig. 1 and 4, the first and second knitting units 2 and 2A include a chevron triangle 21, a stitch cam 22, and a knitting triangle 23, the chevron triangle 21 is fixed on the mountain board 1, the knitting triangle 23 is telescopically arranged below the chevron triangle 21, the stitch cam 22 is telescopically arranged between the chevron triangle 21 and the knitting triangle 23, an arc convex surface 232 for preventing the knitting needle from sinking is arranged in the center of the top of the knitting triangle 23, the arc convex surface is the highest point of the knitting triangle 23, and two ends of the top surface of the conventional stitch cam are the highest points, therefore, when the knitting needle moves to the center position along the highest point of the conventional knitting triangle, the knitting needle sinks to affect the knitting work because the middle part of the conventional knitting triangle is lower than the high points at the two ends, and the knitting needle can be guaranteed to keep the high point in the moving process by the arc convex surface 232, thereby improving the knitting stability of the knitting needle.

The knitting unit 2 is characterized by further comprising a first mesh hanging unit 3 and a second mesh hanging unit 3A, the first and second mesh hanging units 3 and 3A are arranged below the knitting unit 2, the mesh hanging unit 3 comprises a left mesh hanging triangle 31, a right mesh hanging triangle 32, a left needle connecting triangle 33 and a right needle connecting triangle 34, the left needle connecting triangle 33 and the right needle connecting triangle 34 are symmetrically arranged, the left mesh hanging triangle 31 and the left needle connecting triangle 33 are arranged in parallel, and the right mesh hanging triangle 32 and the right needle connecting triangle 34 are arranged in parallel.

Referring to fig. 1 and 7, the first and second weaving units 2 and 2A further include a left stitch cam 61 and a right stitch cam 61A, stitch sliding grooves 61 are respectively disposed on two sides of the chevron cam 21 on the front surface of the gable 1, stitch sliding seats 62 are respectively slidably disposed on the stitch sliding grooves 61, the left stitch cam 61 and the right stitch cam 61A are respectively fixed on the stitch sliding seats 62, the stitch unit 6 further includes two sets of rotary driving devices 63, the rotary driving devices 63 are respectively fixed on the back of the gable 1, guide wheels 621 are respectively rotatably disposed on the stitch sliding seats 62, output shafts of the rotary driving devices 63 are respectively and fixedly provided with rotating wheels, a guide groove 632 slidably engaged with the guide wheel 621 is disposed on an end surface of the rotating wheel 631, and an outer contour of the rotating wheel 632 has an opening communicated with the guide groove 632, the rotating wheel is driven by the rotary driving device 63 to rotate, so that the left stitch cam 61/right stitch cam 61A slides along the stitch sliding grooves 62 under the action of the guide groove 632, thereby ensuring stability of weaving, and improving the effective stitch control density and the weaving efficiency.

As shown in fig. 8, it is more preferable that the upper and lower sliding surfaces of the left stitch cam 61 and the right stitch cam 61A have a protruding needle pressing surface 611, respectively, and when the needle pressing surface 611 at one end of the left stitch cam 61/the right stitch cam 61A is worn, the needle pressing surface 611 at the other end of the left stitch cam 61/the right stitch cam 61A can be exchanged, so that the left stitch cam 61/the right stitch cam 61A can be continuously used, thereby greatly prolonging the service life of the stitch cams. Or, the needle pressing surface 611 of one end of the left stitch cam 61/the right stitch cam 61A is larger than the needle pressing surface 611 of the other end, the left stitch cam 61/the right stitch cam 61A works with one end of the larger needle pressing surface in the normal knitting process, and if the fragile yarn (such as cashmere yarn) is encountered, one end of the smaller needle pressing surface can work, so that the stitch cam is prevented from breaking the yarn, other stitch cams do not need to be replaced, the production cost is reduced, and the application range is wider.

Referring to fig. 1 and 9, a homing triangle 8 is fixedly arranged on a mountain plate 1, an adjusting groove 81 penetrating through the bottom surface is formed in the protective and protective mountain 8, an adjusting block 82 which can stretch out and draw back in the lower end of the homing triangle 8 is arranged in the adjusting groove 81, a plurality of through holes communicated with the adjusting groove 81 are vertically formed in the end surface of the homing triangle 8, connecting holes are formed in the adjusting block 82 and are fixed through screws, and when yarns are loosened in the weaving process, the adjusting block 82 can be adjusted to stretch out of the adjusting groove 81, so that the yarns are tighter, the structure of the homing triangle 8 is greatly simplified, compared with the existing homing triangles adopting two symmetrical blocks, two blocks are often required to be adjusted when the homing triangle is adjusted, and therefore, the height condition is easily generated between the homing triangles, the working stability is affected, and the adjustment is inconvenient.

Referring to fig. 1, a first hill-protecting triangle 9 and a second hill-protecting triangle 9A are respectively and fixedly arranged on two sides of the front face of a hill board 1, the first hill-protecting triangle 9/the second hill-protecting triangle 9A is adjacent to a left stitch triangle 61/a right stitch triangle 61A, and compared with the bottom width of a traditional hill-protecting triangle, the bottom width of the first hill-protecting triangle 9 and the second hill-protecting triangle 9A is larger, a left needle selection large hill-protecting mountain, a middle needle selection large hill-protecting mountain and a right needle selection large hill-protecting mountain are respectively arranged below the first hill-protecting triangle 9, the homing triangle 8 and the second hill-protecting triangle 9A, a needle return triangle 10 is slidably arranged on the limiting groove 101, the vertex angle of the needle return triangle is 100-120 degrees, preferably 114 degrees and the needle return triangle 10 is provided with a slide hole, a screw passes through the slide hole to be fixedly connected with the hill board 1, so that the position of the needle return triangle 10 can be adjusted according to work requirements, the needle return triangle is arranged on two ends of the needle return triangle 10, and the needle return triangle is prevented from shaking, and the needle return can be directly caused by the needle miss in the situation of the needle return needle.

In addition, the needle return cam 10 is over against the return cam 8, the first mountain protection cam 9 and the second mountain protection cam 9A, and the widening design of the bottoms of the first mountain protection cam 9 and the second mountain protection cam 9A is utilized, so that the first mountain protection cam 9 or the second mountain protection cam 9A can better protect a knitting needle when the knitting needle moves to the vertex angle position of the needle return cam 10, the knitting needle moves for a short distance along the bottom of the first mountain protection cam 9 or the bottom of the second mountain protection cam 9A and then comes out, the knitting needle works more stably, the knitting needle is prevented from directly washing out the first mountain protection cam 9 or the second mountain protection cam 9A after the knitting needle moves to the vertex angle position of the needle return cam 10, and a needle path is formed between the needle return cam 10 and the first mountain protection cam 9, the return cam 8 and the second mountain protection cam 9A respectively and is used for controlling the knitting needle to ascend or descend, and preventing the knitting needle from being broken and missed.

The bottom of the cam plate 1 is elastically inserted with a left needle selection lower protective cam, a middle needle selection lower protective cam and a right needle selection lower protective cam in a sliding manner, the left needle selection lower protective cam, the middle needle selection lower protective cam and the right needle selection lower protective cam are respectively provided with a clamping groove part, a triangular guide block is arranged inside the clamping groove part, and when the machine head works, the bottom end of a knitting needle enters the clamping groove part under the action of the guide block, so that the stability of the knitting needle is greatly improved.

Referring to fig. 2 and 3, the back of the gable 1 is provided with a first linkage mechanism 4 for linking the needle-turning cam 22 and the knitting cam 23, the back of the gable 1 is provided with a second linkage mechanism 5 for linking the eye-hanging unit 3, the back of the gable 1 is fixedly provided with a driving device, in this embodiment, the driving device preferably adopts a double-shaft motor, the first linkage mechanism 4 comprises a fixed seat 41 and a first shaft sleeve 42, the first shaft sleeve 42 is fixedly arranged on one output shaft of the driving device 7, the upper part of the first shaft sleeve 42 is provided with a single-head cam 421, the lower part of the first shaft sleeve 42 is provided with a double-head cam 422, the fixed seat 41 is respectively provided with a pair of first sliding holes 43, the needle-turning cam 22 and the knitting cam 23 are respectively provided with a first sliding shaft 44 in sliding fit with the first sliding holes 43, and the driving device 7 drives the first shaft sleeve 42 to link the needle-turning cam 22 and the knitting cam 23 to relatively move telescopically or synchronously move.

That is, when the protruding portion of the single-head cam 421 and one of the protruding portions of the double-head cam 422 are driven by the driving device 7 to act on the first sliding 421 shafts of the stitch cam 22 and the knitting cam 23, respectively, the stitch cam 22 and the knitting cam 23 are simultaneously extended out of the cam 1. Or, the other protruding part of the double-head cam 422 acts on the first sliding shaft 421 of the knitting cam 23 under the driving of the driving device 7, so that the knitting cam 23 extends out of the cam plate 1, and the stitch cam 22 retracts into the cam plate 1, thereby realizing the automatic stretching action of the stitch cam and the knitting cam, and controlling the action of the stitch cam and the knitting cam according to the knitting requirement.

Referring to fig. 3, the upper portion of the stitch cam 22 is provided with a first spring 221, and the first spring is abutted to the cam plate 1, and the two ends of the bottom surface of the knitting cam 23 are respectively provided with a second spring 231, and the second spring is abutted to the cam plate 1, so that the cushioning of the stitch cam 22 and the knitting cam 23 is improved, the stitch cam 22 and the knitting cam 23 are more stable, the structure of the first linkage mechanism is greatly simplified, and the stitch cam 22 and the knitting cam 23 are more convenient to disassemble.

Referring to fig. 2, 5 and 6, the second linkage mechanism 5 includes a pair of fixed sliders 51 and a sliding plate 52, the fixed sliders 51 are respectively fixed to the back of the mountain board 1, a fixed vertical plate 53 is fixed to the end of the fixed slider 51, a concave portion 511 is formed on the bottom surface of the fixed slider 51, an extending portion is arranged at the bottom of the fixed vertical plate 53 in the direction of the concave portion 511, an extending plate is arranged at the bottom of the fixed slider 51 opposite to the extending portion, a limit sliding slot 512 is formed between the extending portion and the concave portion 511, the sliding plate 52 is slidably inserted into the limit sliding slot 512, a driving channel 521 is formed in the middle of the sliding plate 52, teeth 522 are arranged on one side of the driving channel 521, a driving gear meshed with the teeth 522 is fixed to the other output shaft of the driving device 7, and the driving device 7 drives the sliding plate 52 to horizontally slide along the limit sliding slot 512.

Referring to fig. 5 and 6, a second sliding shaft 35 is disposed on each of the left stitch triangle 31, the right stitch triangle 32, the left needle receiving triangle 33, and the right needle receiving triangle 34, a second sliding hole 55 slidably engaged with the second sliding shaft 35 is disposed on the upper portion of the fixed vertical plate, a plurality of grooves 513 are disposed on the fixed sliding base 51 corresponding to the second sliding shaft 35, a first guide groove set and a second guide groove set are disposed on the sliding plate 52, and a sliding rod 351 is disposed on the second sliding shaft 35 and slidably engaged with the first guide groove set or the second guide groove set through the corresponding groove 513.

Referring to fig. 6, specifically, the first guide groove group includes a first guide groove 56, the first guide groove 56 includes a first horizontal portion 561, a second horizontal portion 562, and a first arc-shaped portion 563 located between the first and second horizontal portions 561, 562, the second guide groove group includes a second guide groove 57 and a third guide groove 57A, and each of the second and third guide grooves 57, 57A includes a third horizontal portion 571, a first inclined portion 572 disposed at a left end of the third horizontal portion 571, and a second arc-shaped portion 573 disposed at a right end of the third horizontal portion 571.

In the initial position of the slide plate 52, the slide bar of the left needle connecting cam 33 is in the first horizontal portion 561, the right needle connecting cam 34 is in the second horizontal portion 562, and the left needle connecting cam 33 and the right needle connecting cam 34 extend out of the cam 1 under the action of the first guide groove 56; the slide rod of the left eye hanging triangle 31 is positioned at the third horizontal part 571 of the second guide groove 57, the slide rod of the right eye hanging triangle 32 is positioned at the third horizontal part 571 of the third guide groove 57A, and at this time, the left eye hanging triangle 31 and the right eye hanging triangle 32 respectively extend out of the mountain plate 1 under the action of the second guide groove 57 and the third guide groove 57A.

When the sliding plate 52 moves rightwards, the sliding rod of the left needle connecting triangle 33 is still in the first horizontal part 561, the right needle connecting triangle 34 is in the first arc-shaped part 563, and at this time, the left needle connecting triangle 33 extends out of the gable 1, and the right needle connecting triangle 34 retracts into the gable 1; the slide bar of the left eye cam 31 is positioned at the first inclined part 572 of the second guide groove 57, and the slide bar of the right eye cam 32 is positioned at the first inclined part 572 of the third guide groove 57A, so that the left eye cam 31 and the right eye cam 32 are retracted into the gable 1, respectively.

Referring to fig. 10-13, the cam plate moves leftwards along with the machine head, and the specific work station action flow is as follows:

one of the output shafts of the driving device 7 drives the shaft sleeve 42 to rotate until the protruding portion of the single-head cam 421 and the protruding portion of the double-head cam 422 respectively abut against the first sliding shafts of the stitch cam 22 and the knitting cam 23, so that the stitch cam 22 and the knitting cam 23 simultaneously extend out of the cam 1, and the other output shaft of the driving device 7 drives the sliding plate 52 to move to the middle position, so that the left stitch cam 31, the right stitch cam 32, the left needle receiving cam 33 and the right needle receiving cam 34 synchronously extend out of the cam 1, and at this time, the needle turning operation state is achieved.

When the outer periphery of the single-head cam 421 and the outer periphery of the double-head cam 422 respectively abut against the first sliding shafts of the stitch cam 22 and the knitting cam 23, the stitch cam 22 and the knitting cam 23 retract into the cam 1 at the same time, and the driving device 7 drives the sliding plate 52 to move rightward, so that the left stitch cam 31 and the right stitch cam 32 retract into the cam 1 synchronously, the left needle receiving cam 33 extends out of the cam 1, and the right needle receiving cam 34 retracts into the cam 1, and at this time, the working state of needle receiving is realized.

When the driving device 7 drives the shaft sleeve 52 to rotate until the other protruding part of the double-head cam 422 abuts against the first sliding shaft of the knitting cam 23, and the protruding part of the single-head cam 421 is far away from the first sliding shaft of the stitch cam 22, the knitting cam 23 extends out of the cam 1 and the stitch cam 22 retracts into the cam 1, and simultaneously the other output shaft of the driving device 7 drives the sliding plate 52 to move to the middle position, so that the left stitch cam 31, the right stitch cam 32, the left needle receiving cam 33 and the right needle receiving cam 34 synchronously extend out of the cam 1, and the knitting working state is achieved at the moment.

When the driving device 7 drives the shaft sleeve 42 to rotate, the protruding parts of the single-head cam 421 and the double-head cam 422 are both far away from the first sliding shafts of the stitch cam 22 and the knitting cam 23, so that the stitch cam 22 and the knitting cam 23 are continuously in a retraction state, and the output shaft at the other end of the driving device 7 drives the sliding plate 52 to move rightwards to a central position, so that the left stitch cam 31, the right stitch cam 32, the left needle receiving cam 33 and the right needle receiving cam 34 synchronously extend out of the mountain board 1, and at this time, a stitch working state is achieved.

When the machine head moves to the right, the working process is the same as that of the machine head moving to the left.

Of course, the above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention, and all modifications made according to the spirit of the main technical solution of the present invention should be covered within the protection scope of the present invention.

Claims (10)

1. The mountain plate device with the multi-density weaving function is characterized by comprising a mountain plate (1), a first weaving unit (2) and a second weaving unit (2A) which are arranged on the mountain plate (1), and a homing triangle (8) which is arranged between the first weaving unit and the second weaving unit (2 and 2A), wherein the first weaving unit and the second weaving unit comprise a herringbone triangle (21), a stitch-turning triangle (22) and a weaving triangle (23), the herringbone triangle (21) is fixedly arranged on the mountain plate (1), the weaving triangle (23) is telescopically arranged below the herringbone triangle (21), the stitch-turning triangle (22) is telescopically arranged between the herringbone triangle (21) and the weaving triangle (23), an adjusting groove (81) which penetrates through the bottom surface is formed in the homing triangle (8), and an adjusting block (82) which can be adjusted and stretched at the lower end of the homing triangle (8) is arranged in the adjusting groove (81).

2. The cam plate device with multi-density knitting according to claim 1, characterized in that the top surface of the knitting cam (23) is provided with a curved convex surface (232) in the middle for preventing the knitting needle from sinking.

3. The cam plate device with multi-density knitting according to claim 1, characterized in that a first cam protection cam (9) and a second cam protection cam (9A) are respectively fixed on two sides of the front surface of the cam plate (1), and a left needle selection large cam protection, a middle needle selection large cam protection and a right needle selection large cam protection are respectively arranged below the first cam protection cam (9), the homing cam (8) and the second cam protection (9A).

4. The cam plate device with multi-density knitting according to claim 3 is characterized in that the left needle selection large cam, the middle needle selection large cam and the right needle selection large cam are respectively provided with a limiting groove (101), and a needle return cam (10) is slidably inserted in the limiting groove (101).

5. The cam plate device with multi-density knitting according to claim 1, characterized in that the first and second knitting units (2, 2A) further comprise a left stitch cam (61) and a right stitch cam (61A), the left stitch cam (61) and the right stitch cam (61A) are disposed on two sides of the V-shaped cam (21) and are slidably connected with the cam plate (1), and the upper sliding surface and the lower sliding surface of the left stitch cam (61) and the right stitch cam (61A) are respectively provided with a convex stitching surface (611).

6. The cam device with multi-density knitting according to claim 4, characterized in that the top angle of the needle-back cam is 100 ° -120 ° and the needle-back cam (10) faces the return cam (8) and the first and second mountain-protecting cams (9, 9A), respectively.

7. The cam plate device with multi-density knitting according to claim 1, characterized in that the bottom of the cam plate (1) is elastically slidably inserted with a left needle selection lower cam, a middle needle selection lower cam and a right needle selection lower cam, and the left needle selection lower cam, the middle needle selection lower cam and the right needle selection lower cam are respectively provided with a slot member, and the inside of the slot member is provided with a triangular guide block.

8. The cam plate device with multi-density knitting according to claim 1, further comprising a first eye hanging unit (3) and a second eye hanging unit (3A), wherein the first eye hanging unit (3) and the second eye hanging unit (3A) are respectively arranged below the first knitting unit (2) and the second knitting unit (2A), the first eye hanging unit (3) and the second eye hanging unit (3A) comprise a left eye hanging triangle (31), a right eye hanging triangle (32), a left needle receiving triangle (33) and a right needle receiving triangle (34), the left needle receiving triangle (33) and the right needle receiving triangle (34) are symmetrically arranged, the left eye hanging triangle (31) and the left needle receiving triangle (33) are arranged in parallel, and the right eye hanging triangle (32) and the right needle receiving triangle (34) are arranged in parallel.

9. The cam plate device with multi-density weaving according to claim 5 is characterized in that the front face of the cam plate (1) is respectively provided with a stitch sliding groove (62) at two sides of the herringbone cam (21), a stitch sliding seat (63) is respectively arranged on the stitch sliding grooves (62) in a sliding way, and the left stitch cam (61) and the right stitch cam (61A) are respectively fixedly arranged on the stitch sliding seat (63).

10. The device as claimed in claim 8, wherein the first and second weaving units (2, 2A) are respectively provided with a first linkage mechanism (4), the first and second eye hanging units (3, 3A) are respectively provided with a second linkage mechanism (5), and the first and second linkage mechanisms (4, 5) are respectively driven by a driving device (7) for linking the first and second weaving units (2, 2A) and the first and second eye hanging units (3, 3A) to synchronously operate.

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