CN212834360U - Warp knitting machine - Google Patents

Abstract

The utility model relates to a warp knitting machine, warp knitting machine has full width weft insertion mechanism and merchant card jacquard mechanism simultaneously. The full-width weft insertion mechanism comprises a weft yarn pushing device, and the weft yarn pushing device comprises a plurality of weft yarn push rods which are arranged along the length direction of the warp knitting machine and perpendicular to a needle bed of the warp knitting machine; a weft pushing needle is arranged at the front end of the weft pushing rod; a long strip-shaped through groove is formed in the position, close to the front end, of the weft yarn push rod along the length direction of the weft yarn push rod from the side surface; a horizontally fixed pin shaft penetrates through the long strip-shaped through groove to guide and limit the movement of the weft yarn push rod; the back part of the weft yarn push rod rotates around a circle center in the vertical direction, so that the weft yarn pushing needle has the combined motion of back and forth movement and up and down swinging, and the weft yarn above the front end of the weft yarn pushing needle is pushed into the crochet hook; the warp knitting machine combines the advantages of full weft insertion and jacquard, the knitted fabric pattern has strong stereoscopic impression, is soft and firm, and develops a brand new warp knitting machine door.

Description

Warp knitting machine

Technical Field

The utility model relates to a textile sector especially relates to a warp knitting machine.

Background

The warp knitting machine is a textile machine which takes yarn (such as polyester, chinlon, spandex and other filaments) as raw material, uses one group or several groups of yarn arranged in parallel, and feeds the yarn to all working needles of the machine in warp direction, and simultaneously forms loops to form knitted fabric.

Regarding weft insertion, warp knitting weft insertion structures are divided into partial weft insertion and full weft insertion. The partial weft insertion organization uses one or several weft insertion guide bars to move only after the needle and not before the needle in the looping process, so that the weft insertion yarns are clamped between the loop bars and the extension lines of the ground organization, thereby obtaining the required properties and effects. For example, decorative fabrics such as window screens and laces are patterned by appropriately arranging weft insertion line segments. When the thick and soft yarn is used as the weft insertion yarn, the grey cloth can be napped to form the knitting wool fabric. When the elastic material is used as the weft insertion yarn, the elastic braid and the elastic mesh fabric can be prepared. The full width weft insertion structure is characterized in that weft yarns are inserted into the whole grey cloth by a special weft insertion mechanism, and the effect of the full width weft insertion structure is similar to that of weft knitting weft insertion. Clear horizontal stripe effect can be obtained by adopting weft yarns with different colors.

The core of the weft insertion device is a weft yarn pushing device, referring to fig. 9, the existing weft yarn pushing device needs two sets of transmission systems to perform action synthesis, the occupied space is extremely large, and the running speed is limited due to the overlarge mass, so that the running speed of a warp knitting machine and the number of mountable guide bars are greatly limited, and the weft yarn pushing device is not easily applied to a jacquard warp knitting machine.

Disclosure of Invention

The utility model provides a warp knitting machine, this warp knitting machine have combined the advantage of full width weft insertion and merchant card jacquard weave, and the fabric flower type third dimension that knits out is strong, and is soft durable, has opened up a brand-new warp knitting machine door class.

The technical scheme of the utility model as follows:

a warp knitting machine having both a full-width weft insertion mechanism and a jacquard mechanism.

The full-width weft insertion mechanism comprises a weft yarn pushing device, wherein the weft yarn pushing device comprises a plurality of weft yarn push rods which are arranged along the length direction of the warp knitting machine and perpendicular to a needle bed of the warp knitting machine; a weft pushing needle is arranged at the front end of the weft pushing rod; a long strip-shaped through groove is formed in the position, close to the front end, of the weft yarn push rod along the length direction of the weft yarn push rod from the side surface; a horizontally fixed pin shaft penetrates through the long strip-shaped through groove to guide and limit the movement of the weft yarn push rod; the back part of the weft yarn push rod rotates around a circle center in the vertical direction, so that the weft yarn pushing needle has the combined motion of back and forth movement and up and down swinging, and the weft yarn above the front end of the weft yarn pushing needle is pushed into the crochet hook.

The weft yarn pushing device also comprises a plurality of eccentric shafts II which are arranged in parallel at intervals and can rotate in the vertical direction; two adjacent eccentric shafts II are connected through a connecting shaft parallel to the needle bed, the connecting part is positioned at the eccentric position of the eccentric shaft II, and the connecting shafts form a straight line in the length direction; the rear part of the weft yarn push rod is rotatably sleeved on the connecting shaft.

Wherein, an eccentric shaft I drives an eccentric shaft II at the outermost side to rotate, and the other eccentric shafts II are linked to rotate through connecting shafts.

The eccentric shaft I is driven to rotate by a main shaft in the case through chain transmission or belt transmission.

The eccentric shaft II is rotatably sleeved on a swing shaft support through a bearing; the swing shaft support comprises an upper slide bar which inclines downwards; the upper sliding strip is vertical to the weft yarn and guides the weft yarn to move downwards obliquely towards the needle bed; the eccentric shaft II is rotatably sleeved at the rear end of the swing shaft support; the pin shaft is fixed on the side edge of the front part of the swing shaft support; the weft yarn push rod is close to and parallel to the side face of the swing shaft support.

The full-width weft insertion mechanism also comprises two symmetrically arranged yarn feeding devices positioned at two sides of the warp knitting machine; the yarn feeding device comprises a plurality of chain wheels which are parallel to each other and rotate in the vertical direction; a chain is stretched and tensioned by the chain wheels and is driven by the chain wheels to circularly move; the length direction of the needle bed is vertical to the surface enclosed by the chain; a plurality of hook turning harrow needles are fixed on the chain at equal intervals; a weft laying device moves back and forth between the two yarn feeding devices, guides the yarns to hook on the hook turning harrow needle, and hooks a plurality of parallel weft yarns; the chain drives each weft yarn to sequentially approach the needle bed; the yarn pushing device pushes the weft yarn into a hook of the crochet hook when the weft yarn is close to the needle bed.

Wherein one part of the chain is parallel to the upper sliding strip of the swing shaft support; the turning and hooking harrow needle is a thin rod body which is fixed on the opposite sides of the two chains and extends upwards vertical to the chains.

The weft laying device comprises a straight track which is fixed on a frame body of the warp knitting machine and arranged parallel to a needle bed and a weft laying trolley which moves back and forth along the track; and the weft laying trolley is driven by a motor to reciprocate along the track through a gear and rack matching structure.

The weft laying trolley comprises a weft laying plate which is horizontally arranged; one part of the chain is parallel to the weft laying plate; a plurality of thread leading holes are formed in the weft laying plate corresponding to the space between the adjacent hook raking needles; and a plurality of weft yarns are led out through the thread leading holes and are simultaneously hooked at the upper part of the chain under the guidance of the weft laying plate.

The utility model discloses following beneficial effect has:

1. the utility model discloses utilize revolution at woof push rod rear portion and anterior slotted groove round pin axle cooperation structure to realize pushing away yarn action of woof push rod, only one set of transmission system, and directly by main shaft drive, simple structure, the precision is high, and stability is good, and shared space is little, can improve the quantity of quick-witted speed and sley bar, can be applied to in the merchant card warp knitting machine.

2. The utility model discloses utilize the linkage in turn of connecting axle and eccentric shaft two, thereby realize the synchronization action of all woof push rods, high synchronism can be ensured on the one hand, on the other hand connecting axle eccentric settings on eccentric shaft two, partly constitute for pushing away the yarn action, consequently ingenious while realize pushing away the linkage action that the component action of yarn action constitutes and each woof push rod, two kinds of functions are realized to a structure, and this structure only uses connecting axle and eccentric shaft two, the structure is very compact and simple, good stability, satisfy the structural basis of high-speed action, and the occupation space is little.

3. The utility model discloses a rectangular shape leads to the groove and the cooperation of round pin axle, both regard the round pin axle as woof push rod pivoted fulcrum, played the effect of guide and injecing to the action of woof push rod again, but also make the continuous change of the rotation fulcrum of woof push rod at this in-process to the revolution at cooperation woof push rod rear portion realizes pushing away the realization of yarn action and relapse, and the same structure is very compact and simple, and stability is good, satisfies the structure basis of high-speed action, and occupation space is little.

4. The utility model discloses the design of balance staff support not only utilizes the mode of body trompil to support as the embedding of eccentric shaft two, the side is as the support of round pin axle, and its upper sliding strip is used for guiding the woof to the needle bed translation, because the woof push rod utilizes the balance staff support to support, adjacent balance staff support, its front portion pushes away the woof needle can be comparatively smooth just promote in periodic action and slide to the terminal woof of supreme sliding strip to the needle hook in, this balance staff support both does the support for each essential element, play the effect of guide woof simultaneously, the same structure is very compact and simple, and high stability is good, satisfy the structure basis of high-speed action, and the occupation space is little.

5. The utility model utilizes the matching of the chain wheel and the chain, utilizes the characteristics of rigidity and flexibility of a plurality of chain wheels and the chain, leads the chain to form different parts with different angles and can continuously and circularly move, one part of the chain is parallel to the upper sliding strip and is matched with the upper sliding strip to guide the weft yarn to continuously move to be close to the needle bed, and one part of the chain is parallel to the weft laying plate so as to facilitate the weft laying plate to lay a plurality of weft yarns simultaneously; meanwhile, the rigid part of the chain supports the hook-turning harrow needle; the overturning and hooking harrow needle is arranged at the position, close to a needle bed, of the chain, the chain at the position is guided by a chain wheel to bend and turn, and the overturning and hooking harrow needle is always perpendicular to the chain part at the fixed position, so that the angle of the overturning and hooking harrow needle can be changed along with the bending of the chain, weft yarns are released by the overturning and hooking harrow needle simultaneously when the weft pushing needle pushes yarns, the matching is ingenious, special setting is not needed, additional electronic device support is not needed, and the faults which can appear in complicated debugging and high-speed operation at a high probability are avoided.

6. The utility model discloses utilize and spread latitude dolly and go up and spread latitude board and spread the latitude, lay when can realizing many woofs simultaneously, it only needs to be along the track to spread the latitude dolly and do reciprocal translation can.

7. The utility model discloses utilize the main shaft to do as the drive woof push rod and push away the power of yarn action, the power that can high-efficiently utilize the main shaft on the one hand, on the other hand can ensure that the elevating movement who pushes away yarn action and crochet hook of woof push rod agrees with perfectly, only need confirm the diameter of eccentric shaft one through the debugging, the drive ratio has been confirmed, just can make the main shaft, the accurate linkage of needle bed and woof push rod, the stability of operation has been ensured, avoid independent driving system can make the woof push rod interfere the crochet hook lift when the trouble, cause the large tracts of land damage of crochet.

8. The utility model discloses the pioneering applies simultaneously jacquard weave mechanism and full width weft insertion mechanism to the tricot machine with the merchant card jacquard weave tricot machine with the advantage of full width weft insertion, the transform flower type is easy and save time, the flower type kind is many, the flower type circulation is big, production efficiency is high, manufacturing cost is low to but automatic cycle production, but the woof that can line into not isostructure and performance in the jacquard weave possesses various characteristics. The weft yarn with small stretchability is utilized to increase the stability of the fabric structure and the size, and the fabric is similar to woven fabric; the fabric at the knitting position has the characteristics of strong pattern stereoscopic impression, softness and firmness, and has wider application.

Drawings

FIG. 1 is a schematic view of a weft yarn pushing device of the present invention;

FIG. 2 is a schematic side view of the main mating member and driving member of the weft yarn pushing device of the present invention;

FIG. 3 is a schematic side view of a jacquard warp knitting machine using a weft yarn pushing device according to the present invention;

FIG. 4 is a schematic transmission diagram of the weft yarn pushing device of the present invention;

FIG. 5 is a schematic top view of the main fitting parts and driving parts of the chain and weft yarn pushing device of the present invention;

FIG. 6 is a schematic view of a jacquard warp knitting machine using a weft yarn pushing device according to the present invention;

fig. 7 is a schematic top view of the chain of the present invention;

fig. 8 is a schematic side view of the chain of the present invention;

fig. 9 is a schematic structural diagram of two sets of weft yarn pushing devices with combined transmission in the prior art.

The reference numbers in the figures denote:

1-weft push rod, 11-weft pushing needle, 12-long strip through groove, 13-pin shaft, 14-coupler, 2-eccentric shaft II, 3-connecting shaft, 4-eccentric shaft I, 41-belt, 5-swing shaft support, 51-upper slide bar, 6-yarn feeding device, 61-chain wheel, 62-chain, 621-bearing, 622-weft hook, 63-turning hook harrow needle, 7-weft laying device, 71-track, 72-weft laying trolley, 721-weft laying plate, 8-cabinet and 81-main shaft.

Detailed Description

The invention is described in detail below with reference to the figures and the specific embodiments.

Referring to fig. 1 to 8, a weft yarn pushing device, which can be applied to the transformation of the existing warp knitting machine, and can also be applied to a novel warp knitting machine, and is mainly used as a part of a weft insertion device in a weft insertion warp knitting machine to push weft yarns into a needle hook;

the weft yarn pushing device comprises a plurality of weft yarn push rods 1 which are arranged along the length direction of the warp knitting machine and are vertical to a needle bed of the warp knitting machine, the weft yarn push rods 1 are flat as a whole, and the front ends of the weft yarn push rods face the needle bed; the front end of the weft push rod 1 is provided with a weft pushing needle 11, the weft pushing needle 11 is a steel sheet with a certain upper and lower width at the front end, and can be integrally processed with the weft push rod 1 or be separately processed and then locked at the front end of the weft pushing needle 11.

A long strip-shaped through groove 12 is formed in the lateral surface of the weft push rod 1 close to the front end along the length direction; a horizontally fixed pin shaft 13 penetrates through the elongated through groove 12 to guide and limit the movement of the weft yarn push rod 1; since the pin 13 is fixed and has a diameter slightly smaller than the width of the elongated through slot 12, the movement of the weft push rod 1, including sliding and swinging, can be allowed and limited to be a composite movement of two movements.

The back part of the weft yarn push rod 1 rotates around a circle center in the vertical direction, and the specific mode is as follows: a plurality of eccentric shafts II 2 which are arranged in parallel at intervals and can rotate in the vertical direction; two adjacent eccentric shafts II 2 are connected through a connecting shaft 3 parallel to the needle bed, the connecting part is positioned at the eccentric position of the eccentric shaft II 2, and the connecting shafts 3 form a straight line in the length direction; the rear part of the weft yarn push rod 1 is provided with a coupler 14, a bearing is sleeved in the coupler 14, and the bearing is sleeved on the connecting shaft 3, so that the connecting shaft 3 and the coupler 14 can rotate relatively passively, and when the connecting shaft 3 revolves around the circle center of the eccentric shaft II 2, the coupler 14 can be driven to also revolve around the circle center of the eccentric shaft II 2.

The connecting shaft 3 and the eccentric shaft II 2 are alternatively linked, so that the synchronous action of all weft push rods 1 is realized, on one hand, extremely high synchronism can be ensured, on the other hand, the connecting shaft 3 is eccentrically arranged on the eccentric shaft II 2 and is formed by a part of yarn pushing action, so that the component action formation of the yarn pushing action and the linkage action of all weft push rods 1 are ingeniously realized at the same time, and one structure realizes two functions; the matching of the strip-shaped through groove 12 and the pin shaft 13 not only takes the pin shaft 13 as a rotating fulcrum of the weft yarn push rod 1, but also plays a role in guiding and limiting the action of the weft yarn push rod 1, and the rotating fulcrum of the weft yarn push rod 1 is continuously changed in the process, so that the realization and the repetition of yarn pushing action are realized by matching with the revolution of the rear part of the weft yarn push rod 1.

The power of the motion of the weft push rod 1 comes from the revolution of the back part around the center of the eccentric shaft II 2, and the weft push needle 11 at the front end of the weft push rod can have the combined motion of back and forth movement and up and down swing by matching with the guiding and limiting structure of the matching of the strip-shaped through groove 12 at the front part of the weft push rod and the pin shaft 13, and the weft push rod can realize the yarn push motion of firstly pushing the weft above the front end of the weft push needle 11 into the hook and then descending and retreating by matching with the lifting of the hook needle before the hook needle descends.

For the power of the connecting shaft 3, the connecting shafts 3 and the eccentric shafts 2 are connected in sequence, so that linkage can be realized, however, the circle centers of the eccentric shafts 2 are fixed, so that the eccentric shaft 2 at the outermost side is driven to rotate by one eccentric shaft I4, and the other eccentric shafts 2 are driven to rotate in a linkage manner by the connecting shafts 3.

The driving of the eccentric shaft I4 can be driven by an independent motor, but in order to efficiently utilize power and simplify the number of components, the embodiment is driven by the main shaft 81 positioned in the case 8 to rotate through chain transmission or belt 41 transmission, the scheme has great benefits, on one hand, the power of the main shaft 81 can be utilized, on the other hand, the yarn pushing action of the weft push rod 1 and the lifting motion of the crochet hook can be ensured to be perfectly matched, the diameter of the eccentric shaft I4 is determined only through debugging, the transmission ratio is determined, the main shaft 81, a needle bed and the weft push rod can be accurately linked, the stability of operation is ensured, and the phenomenon that the weft push rod 1 interferes with the lifting of the crochet hook to cause large-area damage of the crochet hook when an independent.

Further, the eccentric shaft II 2 is rotatably sleeved on a swing shaft support 5 through a bearing; the swing shaft support 5 is in a vertical flat shape, the upper end of the swing shaft support is inclined downwards to a needle bed, an upper sliding strip 51 is installed, the upper sliding strip 51 is inclined downwards to be close to the needle bed along the upper end of the swing shaft support 5, and the function of the upper sliding strip is to support weft yarns to move horizontally to the needle bed and avoid the weft yarns from drooping under the action of self gravity; the rear end of the swing shaft support 5 is provided with a horizontally through hole, a bearing is sleeved in the through hole, and the eccentric shaft II 2 is sleeved in the bearing and can rotate through the bearing; the pin shaft 13 is fixed on the side edge of the front part of the swing shaft support 5; the weft yarn push rod 1 is close to and parallel to the side surface of the swing shaft support 5, and the pin shaft 13 penetrates through the long strip-shaped through groove 12 of the weft yarn push rod 1; the design of the swing shaft support 5 not only utilizes the mode of opening a hole on the body of the swing shaft support 5 as the embedded support of the eccentric shaft II 2, but also utilizes the side surface of the swing shaft support 5 as the support of the pin shaft 13, the slide bar 51 on the swing shaft support is used for supporting and guiding weft yarns to translate towards a needle bed, the weft push rod 1 is supported by the swing shaft support 5 and is close to the swing shaft support 5, the weft push needle 11 at the front part of the swing shaft support can smoothly push the weft yarns which move downwards to the tail end of the slide bar 51 to the needle hook in periodic action, and the swing shaft support 5 is used for supporting all main parts and plays a role in supporting and guiding the weft.

The weft insertion device is applied to the weft insertion device which is modified from the existing weft insertion device or is newly designed, the design of the weft insertion device can be diversified, and the weft insertion device of the embodiment comprises two symmetrically arranged yarn feeding devices 6 which are positioned at two sides of a warp knitting machine; the yarn feeding device 6 comprises a plurality of sprockets 61 which are parallel to each other and rotate in the vertical direction; a chain 62 is stretched and tensioned by the plurality of chain wheels 61 and is driven by the plurality of chain wheels 61 to move circularly; specifically, the yarn feeding device 6 has at least three chain wheels 61, a first chain wheel 61 is arranged at a position close to the needle bed, a second chain wheel 61 is arranged obliquely upward and rearward of the first chain wheel 61, and a part of the chain 62 supported by the first chain wheel 61 and the second chain wheel 61 is inclined obliquely upward and rearward from the position close to the needle bed; the third chain wheel 61 is arranged behind the second chain wheel 61 and is positioned on the same horizontal plane with the second chain wheel 61, so that the supported chain 62 is partially horizontal; one of the chain wheels 61 is a driving wheel and is driven to rotate by a main shaft 81 positioned in the case 8 through chain transmission or belt 41 transmission; because the number of the chain wheels 61 can be more than three, the fourth chain wheel 61 can also be used as a driving wheel and can be flexibly arranged according to the specific machine body structure and space.

The chain 62 includes a flexible bearing 621 for tensioning on the plurality of sprockets 61 and moving by the rotation of the sprockets 61; a plurality of weft yarn hooks 622 are uniformly and fixedly adhered on the bearing 621, one side of the weft yarn hook 622 close to the yarn feeding device 6 at the opposite side extends upwards to form one or more slender rod-shaped hook turning raking needles 63 for hooking the weft yarns; under the straight state of the bearing 621, the distance between any two adjacent turning and hooking harrow needles 63 is the same, so that the distance between adjacent weft yarns is ensured to be the same; the needle bed is also oriented lengthwise perpendicular to the plane enclosed by the chain 62.

A weft laying device 7 moves back and forth between the two yarn feeding devices 6, guides the yarns to hook on the hook turning harrow needle 63 and hooks a plurality of parallel weft yarns; the chain 62 drives each weft yarn to sequentially approach the needle bed; the yarn pushing device pushes the weft yarn into a hook of the crochet hook when the weft yarn is close to the needle bed.

Specifically, the weft laying device 7 comprises a straight track 71 which is fixed on a frame body of the warp knitting machine and is arranged parallel to a needle bed, and a weft laying trolley 72 which reciprocates along the track 71; the weft laying trolley 72 is driven by a motor to reciprocate along the track 71 through a gear and rack matching structure, specifically, the motor is arranged on the weft laying trolley 72 and drives a gear to rotate, the gear is meshed with a rack on the track 71, so that the weft laying trolley 72 is driven to translate along the track 71, the weft laying trolley 72 also clamps the track 71 up and down to prevent the weft laying trolley 72 from falling off, and the clamping is carried out through rollers, so that the movement of the weft laying trolley 72 is not influenced.

Further, the weft laying trolley 72 comprises a horizontally arranged weft laying plate 721; a part of the chain 62 is parallel to the weft laying plate 721; a plurality of thread guiding holes are formed in the weft laying plate 721 corresponding to the distance between the adjacent hook raking needles 63; a plurality of weft yarns are drawn out through the thread-introducing holes and simultaneously hooked on the upper portion of the chain 62 under the guidance of the weft laying plate 721. Since the upper part of the chain 62 is continuously fed towards the needle bed, the weft laying plate 721 does not need to move towards the needle bed, and only needs to translate left and right, the weft yarns can be continuously wound on the overturning hook raking needle 63, and macroscopically, each weft yarn is actually continuously wound in an S shape by taking each overturning hook raking needle 63 as a turning point.

In the above scheme, the chain 62 forms different parts with different angles and can continuously and circularly move by utilizing the matching of the chain wheel 61 and the chain 62 and the characteristics of rigidity, flexibility and economy of the plurality of chain wheels 61 and the chain 62, the inclined part of the chain 62 is parallel to the upper sliding strip 51 and the upper sliding strip 51 to be matched with each other to guide the weft yarns to continuously move to be close to the needle bed, and the horizontal part is parallel to the weft laying plate 721 to facilitate the weft laying plate 721 to lay a plurality of weft yarns at the same time; meanwhile, the rigid part of the chain 62 supports the hook raking needle 63; the overturning and hooking harrow needle 63 is arranged at the position, close to a needle bed, of the chain 62, the chain 62 is guided by the first chain wheel 61 to bend and turn, and the overturning and hooking harrow needle 63 is always perpendicular to the weft hook 622 at the fixed position of the overturning and hooking harrow needle 63, so that the angle of the overturning and hooking harrow needle 63 can be changed along with the bending of the chain 62, the weft is released by the overturning and hooking harrow needle 63 simultaneously when the weft pushing needle 11 pushes yarns, the matching is ingenious, special setting is not needed, extra electronic device support is not needed, and the faults which probably occur in complicated debugging and high-speed operation are avoided.

Referring to fig. 1-3, a warp knitting machine, have whole weft insertion organization and jacquard mechanism of jacquard at the same time, its whole weft insertion organization uses the said woof to push the yarn device, the existing jacquard warp knitting machine can't carry on the whole weft insertion under the situation of not slowing down, because the existing woof pushes the yarn device and needs two sets of drive systems to move and formate, its occupation is extremely large, and because the quality is too big and the running speed is limited, thus greatly limit the running speed of the warp knitting machine and quantity that can install the guide bar, therefore can't be applied to jacquard warp knitting machine; the invention thoroughly improves the weft yarn pushing device; utilize revolution at woof push rod rear portion and anterior slotted groove round pin axle cooperation structure to realize pushing away yarn action of woof push rod, only one set of transmission system, and directly by main shaft 81 drive, simple structure, the precision is high, and stability is good, and shared space is little, can improve the quantity of quick-witted speed and sley bar, consequently just can be applied to in the merchant card warp knitting machine. The weft yarn pushing device and the full width weft insertion mechanism using the device in the embodiment are an innovative result of the present application, but it is proved that a warp knitting machine with a full width weft insertion mechanism and a jacquard mechanism can be realized, and before that, no product or record is available on the market and in various documents for simultaneously applying the full width weft insertion mechanism and the jacquard mechanism in a warp knitting machine, and no corresponding teaching is provided.

The utility model discloses a theory of operation:

the main shaft 81 of the warp knitting machine drives the eccentric shaft I4 to rotate through a chain or a belt 41, the eccentric shaft I4 drives the eccentric shaft II 2 and the connecting shafts 3 to be linked, the rotation of the eccentric shaft II 2 drives the connecting shafts 3 to revolve around the circle centers of the eccentric shaft II 2, the rear part of the weft yarn push rod 1 is driven to also revolve around the circle centers of the eccentric shaft II 2, the revolution action at the rear part of the weft yarn push rod 1 drives the front part of the weft yarn push rod 1 to move, and due to the matched limitation and guidance of the pin shaft 13 and the strip-shaped through groove 12, the front part;

meanwhile, the main shaft 81 of the warp knitting machine drives a certain chain wheel 61 serving as a driving wheel to rotate through a belt or a belt (not shown in the figure), so that a chain 62 tensioned on each chain wheel 61 is driven to circularly move, and in the process, the weft laying trolley 72 reciprocates left and right to wind weft laying left and right on a hook turning harrow needle 63 on the chain 62 positioned at the horizontal part; the laid weft yarn is inclined and translated downwards along with the chain 62 towards the needle bed direction, the middle part of the weft yarn is supported by the upper sliding strips 51 on the swing shaft supports 5, when the end of the upper sliding strip 51 on the weft yarn slide way is reached, the weft yarn pushing needle 11 at the front end of the weft yarn push rod 1 moves to the rear part and pushes the weft yarn forwards into the needle hook, the weft yarn push rod 1 moves forwards to the limit of the advancing stroke while pushing the weft yarn into the needle hook, and the weft yarn push rod starts to swing downwards and retract, so that the descending of the interference hook needle is avoided, one cycle is achieved, and the other cycle is started.

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

Claims (9)

1. A warp knitting machine characterized in that: the warp knitting machine is provided with a full-width weft insertion mechanism and a jacquard mechanism at the same time; the full width weft insertion mechanism comprises a weft yarn pushing device, and the weft yarn pushing device comprises a plurality of weft yarn push rods (1) which are arranged along the length direction of the warp knitting machine and are vertical to a needle bed of the warp knitting machine; the front end of the weft push rod (1) is provided with a weft pushing needle (11); a long strip-shaped through groove (12) is formed in the lateral surface of the weft push rod (1) close to the front end along the length direction; a horizontally fixed pin shaft (13) penetrates through the elongated through groove (12) to guide and limit the movement of the weft yarn push rod (1); the back part of the weft yarn push rod (1) rotates around a circle center in the vertical direction, so that the weft yarn push needle (11) has the combined motion of back and forth movement and up and down swinging, and the weft yarn above the front end of the weft yarn push needle (11) is pushed into the crochet hook.

2. The warp knitting machine of claim 1, wherein: the weft yarn pushing device also comprises a plurality of eccentric shafts II (2) which are arranged in parallel at intervals and can rotate in the vertical direction; two adjacent eccentric shafts II (2) are connected through a connecting shaft (3) parallel to a needle bed, the connecting part is positioned at the eccentric position of the eccentric shafts II (2), and the connecting shafts (3) form a straight line in the length direction; the rear part of the weft yarn push rod (1) is rotatably sleeved on the connecting shaft (3).

3. The warp knitting machine of claim 2, wherein: one eccentric shaft I (4) drives the eccentric shaft II (2) at the outermost side to rotate, and the other eccentric shafts II (2) rotate in a linkage mode through the connecting shafts (3).

4. A warp knitting machine according to claim 3, characterized in that: the eccentric shaft I (4) is driven to rotate by a main shaft (81) positioned in the case (8) through chain transmission or belt (41) transmission.

5. The warp knitting machine of claim 4, wherein: the eccentric shaft II (2) is rotatably sleeved on a swing shaft support (5) through a bearing; the pendulum shaft support (5) comprises an upper slide bar (51) which inclines downwards; the upper sliding strip (51) is vertical to the weft yarns and guides the weft yarns to move downwards obliquely towards the needle bed; the eccentric shaft II (2) is rotatably sleeved at the rear end of the swing shaft support (5); the pin shaft (13) is fixed on the side edge of the front part of the swing shaft support (5); the weft yarn push rod (1) is close to and parallel to the side face of the swing shaft support (5).

6. The warp knitting machine of claim 5, wherein: the full width weft insertion mechanism also comprises two symmetrically arranged yarn feeding devices (6) positioned at two sides of the warp knitting machine; the yarn feeding device (6) comprises a plurality of sprockets (61) which are parallel to each other and rotate in the vertical direction; a chain (62) is stretched and tensioned by the plurality of chain wheels (61) and is driven by the plurality of chain wheels (61) to move circularly; the length direction of the needle bed is vertical to the surface enclosed by the chain (62); a plurality of turning and hooking harrow needles (63) are fixed on the chain (62) at equal intervals; a weft laying device (7) moves back and forth between the two yarn feeding devices (6) to guide the yarns to hook on the hook turning harrow needle (63) and hook a plurality of parallel weft yarns; the chain (62) drives each weft yarn to sequentially approach the needle bed; the yarn pushing device pushes the weft yarn into a hook of the crochet hook when the weft yarn is close to the needle bed.

7. The warp knitting machine of claim 6, wherein: a part of the chain (62) is parallel to a sliding strip (51) on the swing shaft support (5); the turning and hooking harrow needle (63) is a thin rod body which is fixed on the opposite sides of the two chains (62) and extends upwards vertical to the chains (62).

8. The warp knitting machine of claim 7, wherein: the weft laying device (7) comprises a straight track (71) which is fixed on a frame body of the warp knitting machine and is arranged parallel to a needle bed and a weft laying trolley (72) which moves back and forth along the track (71); the weft laying trolley (72) is driven by a motor to reciprocate along the track (71) through a gear and rack matching structure.

9. The warp knitting machine of claim 8, wherein: the weft laying trolley (72) comprises a weft laying plate (721) which is horizontally arranged; a part of the chain (62) is parallel to the weft laying plate (721); a plurality of thread guiding holes are formed in the weft laying plate (721) corresponding to the distance between the adjacent hook turning harrow needles (63); a plurality of weft yarns are led out through the thread leading holes and are simultaneously hooked on the upper part of the chain (62) under the guidance of the weft laying plate (721).

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