CN213357894U

CN213357894U - Triangle control mechanism

Info

Publication number: CN213357894U
Application number: CN202021892885.8U
Authority: CN
Inventors: 骆海生; 王涛
Original assignee: Zhejiang Haisen Knitting Machine Technical Co Ltd
Current assignee: Zhejiang Haisen Knitting Machine Technical Co Ltd
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-06-04
Anticipated expiration: 2030-09-02

Abstract

The utility model relates to a knitting technical weaving field especially relates to a triangle control mechanism, at a triangle bottom plate back installation drive control mechanism, the fixed combination cam controls the action of relevant triangle subassembly, the motor rotates 1 angle combination to 1 station, control is simple reliable, controllable station number is many, has avoided a plurality of electro-magnets to install in the motion aircraft nose, has got rid of the trouble root cause, makes the aircraft nose small, light in weight, the reliability is high, energy-conserving power saving; a plurality of stations can be subdivided through artificial intelligence control for weaving, and different weaving processes adopt specially-designed stations, and various modes are flexibly switched, so that the production efficiency is greatly improved, and an innovation direction is indicated for artificial intelligence of a future flat knitting machine by matching with an intelligent yarn nozzle.

Description

Triangle control mechanism

Technical Field

The utility model relates to a knitting technical weaving field especially relates to a triangle control mechanism.

Background

The existing triangular weaving system for flat knitting machines for gloves, socks, scarves and the like has the following defects: 1. the plurality of motors and the plurality of electromagnets respectively execute each triangular action through mechanisms such as connecting rods, and the like, and the defects of large volume and heavy weight of a head of the flat knitting machine are caused by the fact that the number of parts such as the connecting rods, the warping plates, the brackets and the like is large and the structure of a triangular knitting system is complex;

2. the electromagnets are arranged in the moving machine head and are easy to be affected by vibration and pollution to fail, so that related triangular motions are wrong, a firing pin phenomenon is generated, the maintenance is difficult, and the maintenance cost is high;

3. during repeated knitting, the needle selector still needs to pre-select each needle, the needle selector selects the needle repeatedly, and repeated entering and exiting of the stitch into and out of the triangular track is also one of important reasons for more faults and unstable putting; after needle cleaning is needed in preselection, the needle working in the lower stroke is selected, the reciprocating stroke of the machine head is long, the efficiency is low, and the speed is low;

4. in the prior flat knitting machines, an intermediate piece A (high position) is knitted, an H (middle) position hangs a mesh, and a B (low position) is not knitted, namely, a mesh hanging press block is arranged at the middle position, a track is reserved at the high position for high position intermediate piece needle passing, a needle selection piece is pushed from the low position to the high position by a needle pushing cam, the intermediate piece is pushed to the A (high) position, and then is pressed back to the B (low) position by a needle clearing cam, so that the abrasion of the cam and a stitch is easily caused, and the phenomenon of missing needle caused by sliding out of the track is also easily generated.

In addition, the existing cam knitting system controls the needle selection roller to select the needle through the motor, and has the advantages of high knitting speed, good stability, light stress, electricity and energy saving, but the defect is that the needle selection roller can only be used for one process, namely only one pattern knitting, the steel pin needs to be disassembled, assembled and rearranged when the pattern is changed, the technical requirement is high, the working hour is long, and a plurality of enterprises can not make any effort to the method, so that the delivery date and the cost are directly influenced. Therefore, most enterprises are one machine, the roller size limits are met, the more varied and complicated products cannot be arranged, and if products with high added values are needed, more machines are needed to be bought, so that the enterprise cost is increased and the economic benefit is reduced.

SUMMERY OF THE UTILITY MODEL

The invention aims to provide a triangular control mechanism to meet the requirements of one machine for multiple purposes, flexible weaving, quick weaving and multiple patterns weaving.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a cam control mechanism comprises a cam base plate and a drive control mechanism, wherein the front surface of the cam base plate is sequentially divided into a knitting area, a middle plate control area and a needle selection area from top to bottom, the knitting area is internally provided with a knitting cam, a herringbone cam, a lifting seam cam, a lifting needle-lifting triangle, a lifting rubber band cam, a left stitch cam and a right stitch cam, the middle plate control area is internally provided with a left needle-clearing cam and a right needle-clearing cam, and the needle selection area is internally provided with an upper right needle-selecting cam, an upper left needle-selecting cam, a lower needle-selecting cam, a left needle selector, a right needle selector, a needle-selecting homing cam and a lifting left needle-pushing cam and a right needle-pushing cam;

a mesh hanging pressing block positioned right below the knitting cam and a liftable movable needle cleaning cam positioned above the right needle cleaning cam are arranged at the high position of the middle piece control area, and the movable needle cleaning cam is used for converting the middle piece from the high position to the middle position; the left side and the right side of the eye hanging pressing block and the right side of the movable needle cleaning triangle are inclined planes, and the driving control mechanism is used for controlling the lifting of the stitch cam, the rubber band cam, the movable needle cleaning triangle, the left push cam and the right push cam.

Furthermore, the high position in intermediate lamella control area is equipped with the conversion triangle that is located the liftable under the rise cam, and the conversion triangle is used for being converted into the meso position with the intermediate lamella from the high position, the left side of conversion triangle be the inclined plane and with the triangle bottom plate between be equipped with the spring.

Further, the needle selecting homing triangle is movable, the needle selecting piece is avoided when the needle selecting homing triangle moves to a position far away from the triangle bottom plate, the needle selecting piece is summarized when the needle selecting homing triangle moves to a position close to the triangle bottom plate, and a spring is arranged between the needle selecting homing triangle and the triangle bottom plate and is driven by a driving control mechanism.

Furthermore, the driving control mechanism comprises a driving mechanism, two rotating shafts driven by the driving mechanism, a first wane and a second wane, wherein each rotating shaft is provided with a multilayer cam, a first lifting shaft capable of lifting on a triangular bottom plate is arranged on a seam cam, a rubber band cam, a movable needle cleaning cam, a left needle pushing cam and a right needle pushing cam, and a first bearing matched with the multilayer cam is arranged on the first lifting shaft of the seam cam, the first lifting shaft of the left needle pushing cam and the first lifting shaft of the right needle pushing cam;

the center of wane one rotates with the triangle bottom plate to be connected, one end be equipped with multilayer cam complex bearing two, the other end is used for the clear triangular lift axle one action of needle of control activity, the center of wane two rotates with the triangle bottom plate to be connected, and both ends are embedded into respectively in the clear triangular lift axle one of needle of activity and the triangular lift axle of rubber band.

Further, the needle selection homing triangle can be lifted.

The needle selection homing cam is provided with a second lifting shaft which can lift on a cam bottom plate, the second lifting shaft is provided with a third bearing matched with the homing cam, and a spring on the needle selection homing cam stretches along the axial direction of the second lifting shaft.

Further, the needle selection homing triangle can translate.

The needle selection homing mechanism comprises a needle selection homing triangle, a cam base plate and a spring, wherein the needle selection homing triangle is arranged on one rotating shaft, the needle selection homing triangle comprises a translation block in sliding connection with the triangle base plate, the surface, close to the homing wheel, of the translation block is an undulating surface, the homing wheel is provided with a convex column matched with the undulating surface, and the spring on the needle selection homing triangle stretches and retracts along the sliding direction of the translation block.

Further, the needle selection return cam can swing.

The needle selection homing cam comprises a rotating shaft which is rotatably connected with a cam bottom plate, a convex part which protrudes to the homing wheel is arranged on the needle selection homing cam, a groove for accommodating the convex part is arranged on the homing wheel, and a spring on the needle selection homing cam is a torsion spring sleeved on the rotating shaft.

The utility model has the advantages that:

1. the utility model discloses a triangle control mechanism which has the advantages of flexible weaving, quick weaving and multiple purposes, fully meets the function of various weaving requirements, and solves the worries of customers that the machine needs to be replaced under different popular trends in the future;

2. the back of the triangular bottom plate is provided with a driving control mechanism (motor), the combined cam is fixed to control the motion of the related triangular component, the motor rotates 1 angle and is combined into 1 station, the control is simple and reliable, the controllable stations are multiple, a plurality of electromagnets are prevented from being arranged in a moving machine head, the fault source is eliminated, and the machine head is small in size, light in weight, high in reliability, energy-saving and electricity-saving; the knitting can be subdivided into a plurality of stations through artificial intelligence control, different knitting processes adopt specially-designed stations, various modes are flexibly switched, the production efficiency is greatly improved, and an innovation direction is indicated for artificial intelligence of a future flat knitting machine by matching with an intelligent yarn nozzle;

3. when the station is quickly woven, the driving mechanism controls the working needles and the irrelevant triangles to avoid, the back turning is carried out immediately after the weaving is finished, the stroke is shortest, the weaving time is effectively shortened by the quick head back turning, the resistance of the head is greatly reduced because the unwoven needles do not participate in the work, the speed can be improved to the maximum extent, the cyclic station process accounts for 80-95% for the weaving of gloves, socks, scarves and the like, and the yield can be greatly improved; when the glove knitting machine is used for knitting stations, the glove knitting machine is changed into a double-system flat knitting machine, the functions of a 2 nd system lifting mesh and a 1 st system lifting mesh are added, the purposes of knitting with rubber strings in every few needles and knitting with rubber strings in every few needles can be flexibly achieved, double-system multicolor knitting is flexibly selected, and more methods are added for double-system knitting; when a station is knitted, the intelligent flat knitting machine is changed into an intelligent flat knitting machine, and can be used for bidirectional knitting, bidirectional mesh hanging, mesh hanging in the same row, plain knitted fabric, circular tube fabric, rib, single fish scale tissue, double-sided double-color jacquard, single-sided double-color jacquard and the like, and high value-added products can be manufactured;

4. on the premise of not changing the design idea of the whole mechanism, the continuous innovation space is provided, more unsegmented weaving methods and unknown new weaving method stations in the future are reserved, and the flexible application of the flat knitting machine is greatly improved.

Drawings

FIG. 1 is a schematic diagram of the construction of an intelligent glove machine;

FIG. 2 is a schematic front view of a cam control mechanism according to embodiment 1;

FIG. 3 is a rear three-dimensional schematic view of a cam control mechanism in embodiment 1;

FIG. 4 is a schematic view of the structure of the side of the knitting area in FIG. 3;

FIG. 5 is a schematic view of the structure of the side of the needle selection area in FIG. 3;

FIG. 6 is an exploded view of the side of the select area of FIG. 3;

FIG. 7 is a schematic view showing the up-down position of the cam in the rapid knitting operation in example 1;

FIG. 8 is a schematic cross-sectional view of FIG. 7;

FIG. 9 is a schematic view showing the course of the needle group during the preliminary selection in the rapid knitting operation in example 1;

FIG. 10 is a schematic view showing the course of the needle groups selected and unselected in the preliminary selection in the rapid knitting operation in example 1;

FIG. 11 is a schematic view showing the shortest stroke of a knitting needle group at the time of the rapid knitting operation in embodiment 1;

FIG. 12(a) is a schematic view showing the construction of a motion control unit for a hand-selecting homing triangle in example 2;

FIG. 12 (b) is a schematic cross-sectional view of FIG. 12 (a);

FIG. 13(a) is a schematic view showing the shift state of the hand-selecting homing triangle in example 2;

FIG. 13 (b) is a schematic cross-sectional view of FIG. 13 (a);

FIG. 14 is a schematic view showing a configuration of a motion control unit of a hand-selecting homing triangle according to embodiment 3;

FIG. 15 is a schematic view showing the state in which the hand selecting return cam in embodiment 3 is not rotated;

FIG. 16 is a schematic view showing the return cam of the hand of embodiment 3;

FIG. 17 is a schematic view showing the number of repeated needle selections in a common cap in total;

FIG. 18 is a schematic view showing the number of repeated needle selection in a common glove in total number of needles;

FIG. 19 is a schematic view showing the needle passing of the needle group during the preliminary selection in the knitting operation of the glove box module in embodiment 1;

fig. 20 is a schematic needle passing diagram of a reselected selected needle group in a reselecting process in knitting operation of a glove box module in embodiment 1;

fig. 21 is a schematic needle passing view of three needle groups selected, preselected and unselected in a reselection process during knitting operation of the glove knitting machine module in embodiment 1;

FIG. 22 is a schematic view showing needle passing of "stitch and knit" in the knitting operation of the glove box module in example 1;

FIG. 23 is a schematic view of needle passing of "hanging mesh + hanging mesh" in the knitting operation of the glove knitting machine module in embodiment 1;

FIG. 24 is a schematic needle passing view of three needle groups selected by reselection, selected by preselection and unselected during knitting operation of the glove knitting machine module in embodiment 1;

fig. 25 is a schematic needle-feeding diagram of three needle groups for carrying out stitch, knitting and non-knitting when knitting in directions a to B is carried out in the flat knitting machine module knitting operation in embodiment 1;

fig. 26 is a schematic needle thread of three needle groups for stitch, knitting and non-knitting when knitting in directions B to a in the flat knitting machine module knitting operation in embodiment 1;

fig. 27 is a schematic view of setting angles of the double-output-shaft motor in embodiment 1;

fig. 28 is an assembly diagram of a double-output-shaft motor and a cam set in embodiment 1;

description of the reference symbols

1. The needle selection mechanism comprises a rubber band triangle, a needle lifting triangle, a needle opening triangle, a needle clearing triangle, a needle changing triangle, a needle lifting press block, a needle selecting triangle;

18. a needle selector, 18.1 needle selection blade;

19. a needle selection homing triangle, 19.1, a second lifting shaft, a third 19.2 bearing, a 19.3 translation block, a 19.4 pin, a 19.5 rotating shaft, a 19.6 convex part and a 19.7 gasket;

20. hooking a needle;

21. needle jack, 21.1 needle jack stitch;

22. middle plate, 22.1 middle plate pin;

23. the needle selection piece, 23.1 needle selection presser foot, 23.2 lower stitch and 23.3 upper stitch;

24. a triangular bottom plate, a 24.1 sliding rod and a 24.2 spring;

25. the device comprises a double-output-shaft motor, a 25.1 rotating shaft, a 25.2 cam I, a 25.3 cam II, a 25.4 cam III, a 25.5 cam IV, a 25.6 homing cam, a 25.7 homing wheel, a 25.8 convex column and a 25.9 groove;

26. a first lifting shaft, a first 26.1 bearing and a second 26.2 bearing;

27. first wane, 28, second wane, 29 and a machine head.

Detailed Description

The present invention will be described in further detail with reference to examples.

Example 1

In the present embodiment, a cam control mechanism is proposed, as shown in fig. 1, which can be installed in the head 29 of the glove knitting machine shown in fig. 1, the head 29 is symmetrically installed on the front and back needle beds, and runs left and right, and the head 29 described in the present embodiment is deployed by the latter head knitting system. The needle group mentioned herein includes a needle jack 21, an intermediate plate 22 and a selector 23 from top to bottom as shown in the right side of fig. 2, the needle jack 21 is nested on the crochet needle 20, the needle moving track is controlled by a triangle track (such as a knitting track and a suspending mesh track), and the needle moving track can be pressed into the needle bed by the intermediate plate 22 and the triangle; the middle piece 22 is attached to the needle jack 21, can slide up and down, and is controlled by a triangle to move at a high position, a middle position and a low position (as shown in figure 1, A in the figure represents a high position, H represents a middle position, and B represents a low position), when the middle piece needle foot 22.1 is pressed, the needle jack 21 is pressed into a needle bed, thereby being separated from the triangle control; the lower stitch 23.2 of the selector jack 23 is controlled by the needle selection homing cam 19 to enter the cam track.

As shown in fig. 2, a schematic front structure diagram of the cam control mechanism provided in this embodiment includes a cam base plate 24, a cavity groove for mounting various cams is formed on the cam base plate 24, and the cam base plate 24 is sequentially divided into a knitting area, an intermediate piece control area, and a needle selection area from top to bottom.

A left stitch cam 7 and a right stitch cam 4 which are used for acting on the needle jack 21 and determining the stitch density of the braided fabric are arranged in the braiding area, and the left stitch cam 7 and the right stitch cam 4 are controlled by stitch motors and move under the guidance of corresponding cavity grooves. A knitting triangle 5 and a herringbone triangle 6 are arranged between the left stitch triangle 7 and the right stitch triangle 4, the herringbone triangle 6 is positioned right above the knitting triangle 5, a lifting needle raising triangle 2 is arranged at the right lower part of the knitting triangle 5, a lifting seam allowance triangle 3 is arranged at the left lower part, and the needle raising triangle 2 and the seam allowance triangle 3 are used for guiding the trend of the needle jack 21. A liftable rubber band triangle 1 is arranged on the right side of the needle raising triangle 2, when the rubber band triangle 1 is at a rising position, a hanging eye track (also called as a second weaving system) is formed by a gap between the rubber band triangle 1 and the right stitch triangle 4 and used for guiding the needle jack 21 to weave in a hanging eye manner, and the left stitch triangle 7, the right stitch triangle 4, the needle raising triangle 2, the weaving triangle 5, the herringbone triangle 6 and the seam triangle 3 form a weaving track (also called as a first weaving system).

A left needle cleaning triangle 8 and a right needle cleaning triangle 9 are arranged in the middle plate control area, a mesh hanging pressing block 12 which is positioned under the knitting triangle 5, a liftable conversion triangle 11 which is positioned under the needle lifting triangle 2 and a liftable movable needle cleaning triangle 10 which is positioned above the right needle cleaning triangle 9 are arranged between the left needle cleaning triangle 9 and the right needle cleaning triangle 9, and the mesh hanging pressing block 12, the conversion triangle 11 and the movable needle cleaning triangle 10 are all positioned at a high position. The left needle cleaning triangle 8 is used for cleaning the middle plate 22 from the A position to the B position, when the movable needle cleaning triangle 10 is located at the rising position, the middle plate 22 is cleaned from the A position to the H position, the right needle cleaning triangle 9 is used for cleaning the middle plate 22 from the H position to the B position, and the conversion triangle 11 is used for converting the middle plate 22 from the A position to the H position.

An upper right needle selecting triangle 13, an upper left needle selecting triangle 14 and a lower needle selecting triangle 15 are arranged in the needle selecting area, a right needle selector 18 is arranged between the upper right needle selecting triangle 13 and the lower needle selecting triangle 15, a left needle selector 18 is arranged between the upper left needle selecting triangle 14 and the lower needle selecting triangle 15, a liftable needle selecting return triangle 19 is arranged in the middle of the lower needle selecting triangle 15, a liftable left needle pushing triangle 16 and a liftable right needle pushing triangle 17 are respectively arranged between the left needle selecting triangle 18 and the needle selecting return triangle 19, and a central axis of the right needle pushing triangle 17 is positioned between the eye hanging press block 12 and the conversion triangle 11 when seen from the front of a triangle bottom plate 24, so that the middle sheet 22 can push the middle sheet 22 of the selected needle group to the A position after the middle sheet 22 is converted from the A position to the H position. The selector 18 is provided with a controllable selector blade 19, and the selector blade 19 can be swung to act on the selector 23, so that selection is performed when the selector presser foot 23.1 of the selector 23 is not pressed down by the selector blade 19, and non-selection is performed when the selector presser foot 23.1 of the selector 23 is pressed down by the selector blade 19 and the lower needle foot 23.2 of the selector 18 is separated from the track. When the selector 23 is selected for the first time by the needle 18, it is called preselection, and when the preselected selector 23 is selected for the second time by the needle 18, it is called reselect. In this embodiment, when the needle selection return cam 19 is at the lowered position, the selector jack 23 may be generalized into the needle selection rail, and when the needle selection return cam 19 is at the raised position, the selector jack 23 may be avoided. When the left and

right push cams

16 and 17 are in the raised position, the selector jack 23 located in the selector rail is acted on, and the intermediate plate 22 is pushed to the a position by the selector jack 23.

The left side of the needle raising triangle 2, the right side of the stitch cam 3, the left side of the rubber string triangle 1, the left and right sides of the eye pressing block 12, the left side of the switching triangle 11 and the right side of the movable needle clearing triangle 10 are all inclined planes, springs 24.2 are arranged between the needle raising triangle 2, the stitch cam 3, the rubber string triangle 1, the switching triangle 11, the needle selecting return triangle 19, the left push needle triangle 16, the right push needle triangle 17 and the triangle bottom plate 24, and the springs 24.2 are used for returning to corresponding triangles. The triangle can be climbed along the inclined plane to the corresponding stitch of needle group, when climbing the triangle of liftable (and this triangle is not when the control mechanism control at the back), can push down this triangle to realize the triangle dodges, when climbing the triangle of not liftable, needle group can be pushed down, for example hang mesh briquetting 12 can not go up and down, intermediate lamella 22 can climb the slope of hanging mesh briquetting 12 when hanging mesh briquetting 12, thereby push down intermediate lamella 22, drive needle jack 21 and sink, make needle jack 21 break away from triangle control, thereby realize hanging mesh and weave (see the below in detail).

The back of the triangle bottom plate 24 is provided with a driving control mechanism for controlling the lifting of the stitch cam 3, the rubber band cam 1, the movable needle cleaning cam 10, the needle selecting return cam 19 and the left and right

needle pushing cams

16 and 17, and the driving control mechanism in the prior art is composed of a plurality of motors and a plurality of electromagnets, so that the size of the machine head 29 is overlarge, the weight is large, and the failure rate is high. For this purpose, the present embodiment provides a new driving control mechanism, as shown in fig. 3, 4, 5, 6, 28, which is a schematic three-dimensional structure diagram of the back surface of the triangular bottom plate 24, the driving control mechanism includes a double-output shaft motor 25, two rotating shafts 25.1 connected with two output ends of the double-output shaft motor 25, a first rocker 27 and a second rocker 28, a first cam 25.2 and a second cam 25.3 are fixed on the rotating shaft 25.1 corresponding to the knitting area, a third cam 25.4, a fourth cam 25.5 and a return cam 25.6 are fixed on the rotating shaft 25.1 corresponding to the needle selection area, a first lifting shaft 26 capable of lifting on the triangular bottom plate 24 is arranged on each of the stitch cam 3, the elastic triangle 1, the movable needle cleaning triangle 10 and the left and right needle pushing triangles 16, 17, a first bearing 26.1 matched with the corresponding cam is arranged on each of the first lifting shaft 26 capable of lifting motion on the triangular bottom plate 24, and a first bearing 26.1 on the stitch triangle 3 is matched with the periphery of the first cam 25.2, the bearing I26.1 on the left push pin triangle 16 is matched with the cam III 25.4, and the bearing I26.1 on the right push pin triangle 17 is matched with the cam IV 25.5. The center of the first wane 27 is rotationally connected with the triangular bottom plate 24, one end of the first wane is provided with a second bearing 26.2 matched with the second cam 25.3, and the other end of the first wane is used for controlling the first lifting shaft 26 of the movable needle cleaning triangle 10 to act. The center of the second wane 28 is rotatably connected with the triangular bottom plate 24, and two ends of the second wane are respectively embedded into the movable needle cleaning triangle 10 and the first lifting shaft 26 of the elastic triangle 1. When the first wane 27 presses down the first lifting shaft 26 of the movable needle cleaning triangle 10 under the control of the second cam 25.3, the second wane 28 can lift the first lifting shaft 26 of the elastic triangle 1 due to the existence of the second wane 28, at the moment, the elastic triangle 1 overcomes the spring force, and is in a descending position when viewed from the front, and the movable needle cleaning triangle 10 is in a lifting position; on the contrary, when the second cam 25.3 can not withstand the second bearing 26.2, the first rocker 27 can not provide the pushing-down force for the first lifting shaft 26 of the movable needle cleaning triangle 10, at the moment, the first rubber string triangle 1 resets under the action of the spring force, the first lifting shaft 26 of the first rubber string triangle 1 is driven to descend, and under the action of the second rocker 28, the first lifting shaft 26 of the movable needle cleaning triangle 10 is driven to ascend, at the moment, the movable needle cleaning triangle 10 is in the descending position and the rubber string triangle 1 is in the ascending position when being seen from the front.

The needle selection homing triangle 19 is provided with a second lifting shaft 19.1 which can move up and down on a triangle bottom plate 24, the second lifting shaft 19.1 is provided with a third bearing 19.2 matched with a homing cam 25.6, a spring 24.2 on the needle selection homing triangle 19 extends and retracts along the axial direction of the second lifting shaft 19.1, the second lifting shaft 19.1 can be driven to ascend when the third bearing 19.2 is applied with force by the Chinese angelica position cam, and the needle selection homing triangle 19 is at a descending position and can act on a needle selector 23 when being viewed from the front; on the contrary, as shown in fig. 8, when the cam of the second element cannot apply a force to the bearing three 19.2, the second elevating shaft 19.1 is lowered and restored by a spring force, and the selector return cam 19 is at the raised position when viewed from the front and can escape the selector jack 23. On the same principle, the lifting and lowering positions of the stitch cam 3, the left push pin cam 16 and the right push pin cam 17 are changed by the cooperation among the cam, the bearing and the spring 24.2. The needle raising cam 2 is controlled only by the spring 24.2 and is always in a rising position when seen from the front, when a needle group climbs the inclined plane of the needle raising cam 2, the needle raising cam 2 can be pressed downwards, and when the downward pressure is lost, the needle raising cam can be reset by the force of the spring 24.2.

The triangular control mechanism is controlled through linkage of the motor, the cam, the bearing and the like, the control is simple and reliable, a plurality of electromagnets are prevented from being installed in the moving machine head 29, the fault source is eliminated, the size of the machine head 29 is reduced, the weight can be reduced, and the reliability of the triangular control mechanism is improved. Meanwhile, by designing the shape of the cam, the knitting method of various stations can be realized, namely, by setting the shape of the cam, the motor can rotate by an angle, and the lifting of the related triangle can be linked to form a new knitting station, as shown in fig. 27, the embodiment sets a plurality of rotation angles of the motor to realize three knitting methods.

The first knitting method is a fast knitting method, and the implementation background of the method is explained first as follows: when the flat knitting machine is used for knitting, most needles in each row do not participate in work, the unwoven needles are lifted by an inclined plane to enter a needle selection triangular track when passing through a needle selection return triangle 19, and are pressed into a needle bed after passing through a needle selector 18 to be separated from the triangular track, so that the presser foot of a needle selection piece 23 needs to repeatedly rub with the blade of the needle selector 18, after the blade is worn for a period of time, the blade cannot completely press the needle selection piece 23 away from a lower needle selection triangle 15, and the phenomena of disordered needle lifting and defective products can occur when the selected needle triangle is hung occasionally; the abrasion is serious, the stitch is just in contact with the edge of the triangular boss, and when the stitch is not lifted up, the stitch can not be lifted up and can not be attached to the triangular inclined plane, so that the needle selection cam 15 is extruded and impacted, and the conditions of needle bed groove deformation, needle blocking, needle firing and the like are caused. Therefore, in the production process, the needle selector 18, the selector 23 and the cam need to be frequently replaced, the needle bed needs to be replaced when the firing pin is serious, and the replacement and repair process is difficult. From the above analysis, the repeated needle selection of the selector 18 and the repeated stitch entering and exiting from the triangular track are one of the important causes of the multiple and unstable machine faults, as shown in fig. 17 and 18, the repeated needle selection number of the common hat accounts for 93.9%, and the repeated needle selection number of the common glove accounts for 82.35%. Meanwhile, the left and right needle selectors 18 need to select once every line to determine the working state of each needle, the actions are frequent, the running speed of the machine head 29 is limited by the working time of the needle selectors 18, the running speed of the machine head 29 is slow, and the efficiency is low.

The rapid knitting method provided by the embodiment comprises the following steps:

as shown in fig. 9, the head 29 moves from B to a, and the upward stroke can make various needle passing tracks (such as knitting, stitch, non-knitting on the left side of fig. 9), at this time, each cam position is still at a position required for the upward stroke needle passing, when the selector 23 passes through the needle selection return cam 19, the inclined surfaces of all the selector 23 set by the selected needle return cam 19 are returned to the needle selection cam track, and at this time, the rapid knitting method starts to be implemented:

s1, preselection is carried out firstly, a selector 23 selected by a selector 18 is pushed to a middle position by a lower needle selection cam 15, a corresponding middle plate 22 is pushed to an H position at the same time, a needle jack stitch 21.1 is controlled by a cam track, then the middle plate 22 is cleared to a B position by a right needle clearing cam 9, and the selector 23 is cleared to the B position by a right upper selection cam; the middle plate 22 corresponding to the needle selection sheet 23 which is not selected by the needle selector 18 sinks into the needle bed is pressed from the H position to the B position by the right needle cleaning triangle 9, the lower part of the middle plate needle foot 22.1 is provided with an inclined plane, is pushed and pressed by round steel fixed on the needle bed, sinks into the needle bed, stops at the B position when being pushed to a connected plane, simultaneously the needle jack 21 is pressed, the needle foot sinks into the needle bed, and is separated from the control of a triangle track;

s2, as shown in FIG. 10, the machine head 29 operates from A to B, as shown in FIG. 27, a double output shaft can be arranged at the original position, the drive control mechanism controls the cams to a preset position, as shown in FIG. 7, wherein the rubber triangle 1, the slit triangle 3, the left needle pushing triangle 16 and the right needle pushing triangle 17 are all at a sinking position, the needle raising triangle 2 is at a rising position, the needle selecting homing triangle 19 is at a rising position (avoiding the needle selecting piece 23), the left and right needle selectors 18 keep a selected state (blade yielding position), the needle selecting piece 23 selected in the preselection of the upper stroke is pushed to the middle position again by the lower needle selecting triangle 15, the middle piece 22 is pushed to the H position, the selected needle jack 21 rises to enter a knitting area, is guided by the needle raising triangle 2 to enter a knitting track to complete knitting, the needle selecting piece 23 is pressed back to the low position by the upper needle selecting triangle and is stopped at the low position by the right needle selector 18 (avoiding), the right needle pushing triangle 17 (avoiding), and the, The needle selection reset cam 19 (avoidance), the left needle pushing cam 16 (avoidance) and the left needle selector 18 (avoidance) are pushed to the middle position by the lower needle selection cam 15, and then pressed to the low position by the upper needle selection cam, and meanwhile, the middle sheet 22 runs in the middle position until being pressed from the H (middle) position to the B (low) position by the left needle cleaning cam 8;

s3, the machine head 29B runs towards the machine head A, the driving control mechanism does not act (namely, each triangle and the needle selector 18 do not act), the needle jack 21 passes through the stitch cam 3 (avoiding), the needle raising cam 22 inclined plane (the needle raising cam 2 is pressed down to realize avoiding), the rubber band cam 1 (avoiding) and does not raise, the middle piece 22 is at the H position, the needle selector 23 is at the low position, passes through the left and right needle pushing cams 16 and 17 (avoiding), the needle selecting homing cam 19 (avoiding) and the needle selector 18 (avoiding), and the needle group is not woven; FIG. 10 also shows that selected needles are preselected to knit cyclically, with knitting occurring in directions A to B, miss in directions B to A, and miss in the selected needle set;

s4, repeating the steps S2 and S3, circularly working until the same knitting structure of the knitted fabric is finished, then clearing the needles, and switching the working mode of the driving control mechanism to carry out the next knitting method.

In order to further increase the speed of the rapid knitting, as shown in fig. 11, the needle group can be rotated in front of the left and right needle-clearing cams 8, 9, so that the stroke can be greatly reduced, the efficiency of the circular knitting is further improved, and the circular high-speed knitting is realized.

In the quick knitting method, the driving control mechanism enables the needle selection homing triangle 19, the left needle pushing triangle 16, the right needle pushing triangle 17 and the needle selector 18 to be kept away and to be separated from the needle selector 23, so that the needle selector 23 without knitting needles is immobile, all invalid needle selecting actions are removed, the middle piece 22 is ensured not to be pushed, the purposes of immobile knitting needles and only working needles move are achieved, and the reliability and the operation speed of the machine are improved. Referring back to fig. 17 and 18 of the drawings, if the fast knitting method of the embodiment is adopted, the knitting efficiency can be greatly improved, the productivity is improved, and the effects of intelligence, high efficiency, high speed and high reliability are really achieved.

The cam control mechanism in the prior art is that a middle piece A (high position) is woven, an H (middle) position hangs a mesh, and a B (low position) is not woven, namely, a mesh hanging press block 12 is arranged at the middle position, a track is reserved at the high position for a high position middle piece 22 to walk, a needle selection piece 23 is pushed to the high position from the low position by a needle pushing cam, the middle piece 22 is pushed to the A (high) position, and the middle piece is pressed back to the B (low) position by a needle cleaning cam, so that the cam and a stitch are easily abraded, and the phenomenon of needle leakage caused by the sliding-out track is easily generated. In the embodiment, the stitch pressing block 12 is arranged at a high position, a track is reserved in the middle position for moving stitches for the middle position middle plate 22, namely, the high-position stitch and the middle position are knitted, so that the left and right

needle pushing cams

16 and 17 can be positioned at the descending positions during rapid knitting, the needle pushing steps are reduced, the abrasion of the corresponding cams and stitches is reduced, and the miss-stitch probability is reduced.

The second knitting method is a knitting method of a glove box module, comprising the following steps:

as shown in fig. 19, the head 29 moves from a to B, the upstroke can make various needle passing tracks, at this time, each cam position is still at a position required for the upstroke needle passing, when the selector jack 23 passes through the needle selecting return cam 19, all the selector jacks 23 are returned to the needle selecting cam track by the inclined plane provided by the selected needle return cam 19, and thus, the glove knitting method starts to be implemented:

s1, preselecting, pushing the selector 23 selected by the selector 18 to the middle position by the lower needle selection cam 15, simultaneously pushing the corresponding middle plate 22 to the H position, controlling the needle jack stitch 21.1 by the cam track, cleaning the middle plate 22 to the B position by the left needle cleaning cam 8, and cleaning the selector 23 to the B position by the left upper selection cam; the middle sheet 22 corresponding to the needle selector 23 which is not selected by the needle selector 18 sinks into the needle bed is pressed from the H position to the B position by the left needle-cleaning triangle 8, the lower part of the stitch of the middle sheet 22 is provided with an inclined plane, is pushed and pressed by round steel fixed on the needle bed, sinks into the needle bed, stops at the B position when being pushed to a connected plane, simultaneously the needle jack 21 is pressed, the stitch sinks into the needle bed, is separated from the control of the triangle track, the unselected needle group is preselected and is not woven, and the needle moving track of the subsequent stroke can be seen in fig. 21 and fig. 24;

s2, the motor rotates clockwise to the XX angle (the specific angle is determined by the shape of the cam) in the graph 27, the driving control mechanism controls each triangle to a preset position, wherein the rubber band triangle 1 is at a rising position, the slit triangle 3 and the movable needle cleaning triangle 10 are at a sinking position, the needle selecting return triangle 19 is at a position close to the triangle bottom plate 24, the left push needle triangle 16 is at a rising position, and the right push needle triangle 17 is at a sinking position;

s3, reselection is carried out, as shown in a figure 20, a machine head 29 runs from B to A, a needle selection sheet 23 selected in preselection is pushed to a middle position by a lower needle selection cam 15, is selected by a left needle selector 18 (namely, reselected and selected, and then can enter a second weaving system for eye hanging, a needle walking track can refer to a figure 21 or a figure 20), is pushed to a high position by a left needle pushing cam 16, is pressed back to a low position by a right upper needle selection cam 13, is repeatedly (in a track) restored by a needle selection restoring cam 19, passes through a sunken right needle pushing cam 17, reaches the right needle selector 18 for selection, is pushed to the middle position by the lower needle selection cam 15, passes through a needle selection track to the low position, a middle sheet 22 of the same needle group is pushed to the H (middle) position by the needle selection sheet 23 firstly, then is pushed to the A (high) position, passes through a lifting press block 12 inclined plane, is converted to a triangular 11 inclined plane, passes through the upper part of a sunken movable needle clearing cam 10 and stops at the;

the selected selector 23 enters the needle selection track in preselection, is pushed to the middle position by the lower needle selection cam 15, and pushes the middle plate 22 from the B (low) position to the H (middle) position, the selector 23 is pressed back to the low position by the left upper needle selection cam 14, is unselected by the left selector 18 (i.e. reselecting and unselecting, and then enters the first knitting system for knitting or stitch lifting details below), the selector 23 is pressed into the needle bed, translates to cross the left needle selection cam 16, lifts up the bevel edge of the selected needle homing cam 19 at the low position to return to the needle selection track, translates to pass through the sunken right needle selection cam 17, pass through the right selector 18 (unselection), and leaves through the needle selection track, the middle plate 22 is located at the middle (H) position, and translates to leave after half pressing in through the bevel surface at the front end of the right needle selection cam 9, as shown in the needle moving track in fig. 21;

s4, the motor rotates clockwise to the angle X in the figure 27 (the specific angle is determined by the shape of the cam), the driving control mechanism controls each triangle to a preset position, wherein the rubber triangle 1 is at a rising position, the slit triangle 3 and the movable needle cleaning triangle 10 are at a sinking position, the needle selecting homing triangle 19 is at a position close to the triangle bottom plate 24, the left needle pushing triangle 16 is at a falling position, and the right needle pushing triangle 17 is at a rising position, compared with the step S2, the advantages that the left needle pushing triangle 16 and the right needle pushing triangle 17 are changed, and the cam set is adopted on the double output shafts are embodied, namely, through the design of the shape of the cam, the left needle pushing triangle 17 and the right needle pushing triangle 17 can move when the motor rotates, and other independent triangles are not moved (the design is a conventional technology, and the detailed expansion of the shape of the cam is not performed here;

s5, the head 29 moves from A to B, reselects the selected needle group, the selector 23 is pushed up to the middle position by the lower needle selection cam 15, as shown in FIG. 22, if the right selector 18 is not selected at this time, the selector 23 is pressed into the needle bed, and returns to the needle selection track through the needle selection return cam 19, the needle selection is finished this time, and the next operation needle selection starts; the middle sheet 22 is at A (high) position, passes through the sinking movable needle cleaning triangle 10, is pressed to H (middle) position by the conversion triangle 11, passes through the space below the mesh hanging pressing block 12, and is pressed down by the left needle cleaning triangle 8; the needle jack 21 enters the No. 2 knitting system through the rubber band triangle 1 for mesh hanging, and then enters the first knitting system through the needle raising triangle 2 for knitting (the whole process is mesh hanging and knitting);

as shown in fig. 23, if the right selector 18 is selected at this time, the selector 23 is pushed to the high position by the right pushing cam 17 and is pushed back to the low position by the upper selecting cam, and is repeatedly returned to the selection track by the selection return cam 19, and the selection is finished this time and the selection is started next time; the middle sheet 22 is at A (high) position, passes through the sinking movable needle cleaning triangle 10, is pressed to H (middle) position by the conversion triangle 11, passes through the mesh hanging press block 12, is pushed into A (high) position by the selected needle sheet 23, is pressed into the needle bed through the inclined plane of the mesh hanging press block 12, is reset after passing through the mesh hanging press block 12, and is pressed down by the left needle cleaning triangle 8; the needle jack 21 enters the No. 2 knitting system through the rubber band triangle 1 for mesh hanging, and then enters the knitting track through the needle raising triangle 2, the stitch of the needle jack is pressed into a needle bed by the middle sheet 22, so that the needle jack crosses the knitting triangle 5, and the mesh hanging of the No. 1 knitting system is completed (the whole process is mesh hanging and mesh hanging);

as shown in fig. 24, the preselection selects to enter only the first system to weave or hang a target needle group, wherein the middle plate 22 is located at the middle position, after the machine head operates, the middle plate 22 is pressed into the needle bed by the inclined plane of the right needle-cleaning triangle 9 when climbing up to the inclined plane of the right needle-cleaning triangle 9, at this time, the needle jack 21 is located right in front of the rubber triangle 1, the needle jack 21 is pressed by the middle plate 22 to be separated from the track position, thereby crossing the rubber triangle 1 to enter the first weaving system, at this time, if the needle selector 23 is selected by the needle selector 18, the hanging is performed (the needle selector 23 pushes the middle plate 22 to the high position under the action of the right needle-pushing triangle 17, thereby the middle plate 22 climbs up to hang the target pressing block 12, and the needle jack 23 crosses the weaving triangle 5), if not.

From the above process, it can be seen that, since the middle piece 22 is in the high position after reselection selection, and the triangle control mechanism adopts the middle position knitting and the high position mesh hanging, all the high position middle pieces 22 are firstly switched to the low position by the switching triangle 11, and then are selected by the needle selector 18, and the mesh hanging + mesh hanging or mesh hanging + knitting process is completed. Compared with the prior art, the triangular bottom plate 24 can be used for hanging and weaving or hanging and hanging, more patterns can be combined, cylindrical products and special gloves with high added values can be manufactured, and the economic benefit is remarkable.

The third knitting method is a flat knitting machine module knitting method, and assuming that the direction of the head 29A to B is a forward direction and the direction of B to a is a reverse direction, the method can realize forward knitting and reverse knitting.

The forward weaving comprises the following steps:

s1, needle group preselection is carried out, a machine head 29B runs towards A, the preselection process is the same as the two methods, the needle group selected in preselection participates in the downstream course knitting or mesh hanging, and the needle group not selected is not knitted;

s2, the double-output-shaft motor 25 rotates counterclockwise to the Y-angle (the specific angle is determined by the shape of the cam) shown in fig. 27, the drive control mechanism controls each cam to the preset position, wherein the stitch cam 3, the needle raising cam 2, the movable needle clearing cam 10 are at the raising position, the rubber string cam 1 is at the sinking position, the needle selecting return cam 19 is at the position close to the cam base plate 24, the left push cam 16 is at the sinking position, and the right push cam 17 is at the raising position;

s3, the head 29 operates from A to B to reselect the needle group, the needle selection sheet 23 of the needle group selected by preselection and reselection is pushed to the high position by the right needle pushing cam 17 to drive the middle sheet 22 of the same needle group to enter the high position, the middle sheet 22 climbs the slope of the mesh hanging press block 12 and is pressed by the mesh hanging press block 12, so that the needle jack 21 is pressed into the needle bed, and resets after crossing the knitting cam 5 to complete the mesh hanging work, and the middle sheet 22 climbs the mesh hanging press block 12 and is cleaned from the high position to the low position by the left needle cleaning cam 8; preselecting and reselecting unselected needle groups, pressing the selector 23 into the needle bed so as to cross over the right needle pushing cam 17, enabling the middle plate 22 to be in the middle position, enabling the needle jack 21 to enter a knitting track to finish knitting, and finally cleaning the middle plate 22 to be in the low position from the middle position by the left needle cleaning cam 8; the needle set that was not selected for both preselection and reselection is not engaged as shown in fig. 25.

The reverse knitting comprises the following steps:

s1, needle group preselection is carried out, a machine head 29A runs towards a machine head B, the preselection process is the same as the two methods, the needle group selected in preselection participates in the lower course knitting or mesh hanging, and the needle group not selected is not knitted;

s2, the double-output-shaft motor 25 rotates anticlockwise to the YY angle shown in the figure 27, the driving control mechanism controls the cams to reach preset positions, wherein the stitch cam 3, the needle raising cam 2 and the movable needle cleaning cam 10 are located at rising positions, the rubber band cam 1 is located at a sinking position, the needle selecting return cam 19 is located at a position close to the cam bottom plate 24, the left push cam 16 is located at a rising position, and the right push cam 17 is located at a sinking position;

s3, the machine head 29 operates from B to A to reselect the needle group, the needle selection sheet 23 of the needle group selected by preselection and reselection is pushed to the high position by the left needle pushing triangle 16 to drive the middle sheet 22 of the same needle group to enter the high position, the middle sheet 22 climbs the slope of the mesh hanging press block 12 and is pressed by the mesh hanging press block 12, so that the needle jack 21 is pressed into the needle bed, and is reset across the knitting triangle 5 to complete the mesh hanging work, and after the middle sheet 22 climbs the mesh hanging press block 12, the movable needle cleaning triangle 10 is firstly cleaned from the high position to the middle position, and then the right needle cleaning triangle 9 is cleaned from the middle position to the low position; the needle selecting sheet 23 is pressed into the needle bed to cross the left needle pushing cam 16 so that the middle sheet 22 is in the middle position, the needle jack 21 enters the knitting track to complete the knitting work, and the needle group which is not selected by the preselection and the reselection does not participate in the knitting work, as shown in fig. 26.

Example 2

The principle of the present embodiment is the same as that of embodiment 1, except that the needle selection homing triangle 19 of the present embodiment is a translational motion, as shown in fig. 12 to 13, a sliding rod 24.1 is arranged on a triangle bottom plate 24, one end of the needle selection homing triangle 19 is positioned on the front surface of the triangle bottom plate 24 for realizing the summary effect of needle selection, the other end is a translation block 19.3 positioned on the back surface of the triangle bottom plate 24, a through hole for passing through the sliding rod 24.1 is arranged on the translation block 19.3, a pin 19.4 and a gasket 19.7 are fixed at the end of the sliding rod 24.1 for limiting the translation block 19.3, and a spring 24.2 is arranged between the gasket 19.7 and the translation block 19.3 for realizing the resetting of the movement block. A homing wheel 25.7 is arranged on an output shaft of the needle selection area, the cross section of the translation block 19.3 is triangular, the surface of the translation block 19.3 corresponding to the homing wheel 25.7 is a raised surface with a convex middle part, and the homing wheel 25.7 is provided with a convex column 25.8 matched with the triangular cross section. As shown in fig. 12 (b), when the convex column 25.8 is not at the convex position, the homing wheel 25.7 does not push the translation block 19.3 open, and at this time, the needle selecting homing triangle 19 is close to the triangle bottom plate 24, and the selector jack 23 can be summarized, as shown in fig. 13 (b), when the convex column 25.8 is at the convex position, the homing wheel 25.7 pushes the translation block 19.3 open, and at this time, the needle selecting homing triangle 19 is far from the triangle bottom plate 24, and the selector jack 23 can be avoided.

Example 3

The principle of this embodiment is the same as that of embodiment 1, except that the needle selection homing triangle 19 of this embodiment is a swingable motion, as shown in fig. 14 to 16, a homing wheel 25.7 is provided on a rotation shaft 25.119.5 located in the needle selection area, the needle selection homing triangle 19 includes a rotation shaft 19.5 rotatably connected to a triangle bottom plate 24, a protrusion 19.6 protruding toward the homing wheel 25.7 is provided on the needle selection homing triangle 19, a groove 25.9 for accommodating the protrusion 19.6 is provided on the homing wheel 25.7, a spring 24.2 on the needle selection homing triangle 19 is a torsion spring fitted on the rotation shaft 19.5, and the needle selection homing triangle 19 is swingable between angles close to and far from the triangle bottom plate 24 by the rotation shaft 19.5. As shown in fig. 15, since the convex portion 19.6 does not correspond to the groove 25.9 on the return wheel 25.7, and the convex portion 19.6 is pushed open, so that the needle selection return triangle 19 approaches the triangle bottom plate 24, the selector jack 23 can be summarized, as shown in fig. 16, since the convex portion 19.6 corresponds to the groove 25.9 on the return wheel 25.7, the convex portion 19.6 enters the groove 25.9 under the action of the torsion spring, so that the needle selection return triangle 19 is far away from the triangle bottom plate 24, so that the selector jack 23 can be avoided.

The above-mentioned embodiments are merely illustrative of the inventive concept and are not intended to limit the scope of the invention, which is defined by the claims and the insubstantial modifications of the inventive concept can be made without departing from the scope of the invention.

Claims

1. A cam control mechanism comprises a cam base plate and a drive control mechanism, wherein the front surface of the cam base plate is sequentially divided into a knitting area, a middle plate control area and a needle selection area from top to bottom, the knitting area is internally provided with a knitting cam, a herringbone cam, a lifting seam cam, a lifting needle-lifting triangle, a lifting rubber band cam, a left stitch cam and a right stitch cam, the middle plate control area is internally provided with a left needle-clearing cam and a right needle-clearing cam, and the needle selection area is internally provided with an upper right needle-selecting cam, an upper left needle-selecting cam, a lower needle-selecting cam, a left needle selector, a right needle selector, a needle-selecting homing cam and a lifting left needle-pushing cam and a right needle-pushing cam;

the method is characterized in that: a mesh hanging pressing block positioned right below the knitting cam and a liftable movable needle cleaning cam positioned above the right needle cleaning cam are arranged at the high position of the middle piece control area, and the movable needle cleaning cam is used for converting the middle piece from the high position to the middle position; the left side and the right side of the eye hanging pressing block and the right side of the movable needle cleaning triangle are inclined planes, and the driving control mechanism is used for controlling the lifting of the stitch cam, the rubber band cam, the movable needle cleaning triangle, the left push cam and the right push cam.

2. A trigonometric control mechanism according to claim 1, wherein: the high level in intermediate lamella control area is equipped with the conversion triangle that is located the liftable under the rise cam, and the conversion triangle is used for being converted into the meso position with the intermediate lamella from the high level, the left side of conversion triangle be the inclined plane and with the triangle bottom plate between be equipped with the spring.

3. A trigonometric control mechanism according to claim 2, wherein: the needle selection homing triangle is movable, the needle selection homing triangle avoids the needle selection piece when moving to a position far away from the triangle bottom plate, the needle selection piece is summarized when moving to a position close to the triangle bottom plate, and a spring is arranged between the needle selection homing triangle and the triangle bottom plate and is driven by a driving control mechanism.

4. A trigonometric control mechanism according to claim 3, wherein: the driving control mechanism comprises a driving mechanism, two rotating shafts driven by the driving mechanism, a first wane and a second wane, wherein each rotating shaft is provided with a multilayer cam, a first lifting shaft capable of lifting on a triangular bottom plate is arranged on a seam cam, a rubber band cam, a movable needle cleaning cam, a left pushing cam and a right pushing cam, and a first bearing matched with the multilayer cams is arranged on the first lifting shaft of the seam cam, the first lifting shaft of the left pushing cam and the first lifting shaft of the right pushing cam;

5. The triangulation control mechanism of claim 4, wherein: the needle selection homing triangle can be lifted.

6. The triangulation control mechanism of claim 5, wherein: the needle selection homing mechanism comprises a homing cam arranged on one rotating shaft, a second lifting shaft capable of lifting on a cam bottom plate is arranged on a needle selection homing cam, a third bearing matched with the homing cam is arranged on the second lifting shaft, and a spring on the needle selection homing cam stretches along the axial direction of the second lifting shaft.

7. The triangulation control mechanism of claim 4, wherein: the needle selection homing triangle can translate.

8. The triangulation control mechanism of claim 7, wherein: the needle selection homing mechanism comprises a homing wheel arranged on one rotating shaft, wherein the needle selection homing triangle comprises a translation block in sliding connection with a triangle bottom plate, the surface, close to the homing wheel, of the translation block is an undulating surface, a convex column matched with the undulating surface is arranged on the homing wheel, and a spring on the needle selection homing triangle stretches along the sliding direction of the translation block.

9. The triangulation control mechanism of claim 4, wherein: the needle selection homing triangle can swing.

10. A trigonometric control mechanism according to claim 9, wherein: the needle selection homing mechanism comprises a homing wheel arranged on one rotating shaft, a needle selection homing triangle comprises a rotating shaft which is rotationally connected with a triangle bottom plate, a convex part which protrudes to the homing wheel is arranged on the needle selection homing triangle, a groove for accommodating the convex part is arranged on the homing wheel, and a spring on the needle selection homing triangle is a torsion spring sleeved on the rotating shaft.