CN117822192A - Jacquard comb and needle selection method thereof - Google Patents

Abstract

The jacquard comb comprises at least one base, a plurality of piezoelectric jacquard elements arranged on one part of the base and at least one needle position selector arranged on the other part of the base, wherein each piezoelectric jacquard element is provided with a yarn guide needle capable of swinging independently, a first station of the yarn guide needle is a head needle position, a third station of the yarn guide needle is a tail needle position, the distance between the first station and the third station is two needle distances, a second station is arranged in the middle between the first station and the third station, and when the moment of the needle position selector is larger than that of the yarn guide needle, the needle position selector pushes the yarn guide needle to move to the second station. In the invention, the torque of the needle position selector is larger than that of the yarn guide needle, so that the needle position selector can stably and effectively push the yarn guide needle to move from the third station to the second station, and the yarn guide needle can be stably switched between the second station and the third station.

Description

Jacquard comb and needle selection method thereof

Technical Field

The invention relates to the field of warp knitting machines, in particular to a jacquard comb and a needle selecting method of the jacquard comb.

Background

Because of the characteristics of the conventional piezoelectric ceramic plates, the needle positions of the conventional jacquard comb can only swing between two adjacent needle positions and have a left station state and a right station state, so that the conventional jacquard comb can be also called as a two-station jacquard, and the conventional jacquard comb is a two-station jacquard.

With the progress of technology, the flower-shaped process has new breakthrough, the process breakthrough has new requirements on the jacquard, and the new process requires the jacquard to have three station states, besides the two station states of the conventional jacquard, a new intermediate station state is required, and the name of the three-station jacquard is obtained. The three-station jacquard is different from the conventional jacquard in that: the swing amplitude of the conventional jacquard is 1 slot needle position, and the swing amplitude of the three-station jacquard is 2 slot needle positions due to the addition of a station state, namely: without traversing, its swing is 2 slot needle positions.

In recent years, research on a knitting method of a three-station jacquard comb has been started in the industry, but a jacquard comb capable of stably realizing three stations is lacking in the market, and yarn guide needles of the jacquard comb can be stopped at the three stations respectively, so that three-station jacquard yarn guide is realized, and knitting of the knitting method of the warp knitting jacquard product of the three-station jacquard is realized.

The three-station jacquard comb has the following core functions: besides the need of left-right swing of the yarn guide needles, the yarn guide needles can be accurately stopped at the central position, each yarn guide needle swings independently, and each different yarn guide needle can be positioned at different stations at the same time, rather than enter the same station at the same time.

Disclosure of Invention

The invention provides a jacquard comb and a needle selecting method thereof, and mainly aims to overcome the defect that the traditional jacquard comb can only realize two stations.

In order to solve the technical problems, the invention adopts the following technical scheme:

the jacquard comb comprises at least one base, a plurality of piezoelectric jacquard elements arranged on one part of the base and at least one needle position selector arranged on the other part of the base, wherein each piezoelectric jacquard element is provided with a yarn guide needle capable of swinging independently, a first position of the yarn guide needle is a head needle position, a third position of the yarn guide needle is a tail needle position, the distance between the first position and the third position is two needle pitches, when the moment of the needle position selector is larger than that of the yarn guide needle, the needle position selector pushes the yarn guide needle to move to a second position, the second position is arranged at an intermediate position between the first position and the third position, the limiting component is abutted against the corresponding part of the yarn guide needle when the yarn guide needle stops swinging at the third position, the limiting component is used for blocking the yarn guide needle, and when the yarn guide needle stops swinging at the second position, and the yarn guide needle is enabled to be pushed to move by the limiting component when the yarn guide needle stops swinging at the second position.

Compared with the prior art, the invention has the beneficial effects that:

the invention has simple structure and strong practicability, and the torque of the needle position selector is larger than that of the yarn guide needle, so that the needle position selector can stably and effectively push the yarn guide needle to move from the third station to the second station, thereby stably realizing the switching of the yarn guide needle between the second station and the third station.

Drawings

Fig. 1 is a schematic structural view of a first station, a second station and a third station in a jacquard comb.

Fig. 2 is a schematic structural view of the jacquard comb when the second piezoelectric ceramic sheet is laminated over the first piezoelectric ceramic sheet.

FIG. 3 is a schematic view of the structure of the guide bar teeth in the third embodiment.

Fig. 4 is a schematic structural view of the jacquard comb when the first piezoelectric ceramic sheet is laminated over the second piezoelectric ceramic sheet.

Fig. 5 is a schematic structural view of the first groove and the second groove.

Fig. 6 is a schematic structural diagram of an eighth embodiment.

Fig. 7 is a schematic diagram of a slot structure.

Description of the embodiments

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

In a first embodiment, referring to fig. 1 and 2, a jacquard comb including a base 1, a plurality of piezoelectric jacquard elements 4 disposed on a portion of the base 1, at least one needle position selector 2 disposed on another portion of the base 1, and a plurality of guide teeth 3 arranged on a front portion of the base 1, and a needle selecting method of the jacquard comb are provided.

Referring to fig. 1, 2 and 3, each piezoelectric jacquard element 4 has a yarn guide needle 21 capable of swinging independently and at least one first piezoelectric ceramic piece 41 capable of swinging after being electrified, a first station 31 of the yarn guide needle 21 is a head needle position, a third station 33 of the yarn guide needle 21 is a tail needle position, a distance between the first station 31 and the third station 33 is two needle distances, a second station 32 is arranged at an intermediate position between the first station 31 and the third station 33, and when the torque of the needle position selector 2 is larger than that of the yarn guide needle 21, the needle position selector 2 pushes the yarn guide needle 21 to move to the second station 32.

Referring to fig. 1, 2 and 3, by setting the torque of the needle position selector 2 to be greater than the torque of the yarn guide needle 21, the needle position selector 2 can stably and effectively push the yarn guide needle 21 to move from the third station 33 to the second station 32, thereby stably realizing the switching of the yarn guide needle 21 between the second station 32 and the third station 33.

Referring to fig. 1, 2 and 3, when the initial movement position of the guide needle 21 is at the third station 33, the needle position selector 2 pushes the guide needle 21 to move from the third station 33 to the second station 32, thereby achieving the effect of switching the guide needle 21 from the third station 33 to the second station 32.

Referring to fig. 1, 2 and 3, the needle position selector 2 includes a plurality of limiting assemblies 24 capable of swinging independently, the number of the limiting assemblies 24 is adapted to the number of the guide needles 21, and at least one corresponding limiting assembly 24 is disposed on the opposite side of each guide comb tooth 3.

Referring to fig. 1, 2 and 3, a portion of the guide teeth 3 is used to block a portion of the corresponding guide needle 21 so that the guide needle 21 stops swinging at the first station 31.

Referring to fig. 1, 2 and 3, when the spacing assembly 24 abuts against another portion of the corresponding guide bar tooth 3 after swinging, the spacing assembly 24 is used to block the corresponding guide needle 21 from stopping swinging at the second station 32.

Referring to fig. 1, 2 and 3, when the spacing assembly 24 swings to the opposite side of the guide teeth 3, the spacing assembly 24 is used to block the thread-guide needle 21 from swinging at the third station 33, and the distance between the portion of the spacing assembly 24 used to block the corresponding thread-guide needle 21 and the first station 31 is two pitches.

Referring to fig. 1, 2 and 3, by providing the limiting assembly 24 and the guide teeth 3 capable of swinging independently, the guide needle 21 is blocked by the guide teeth 3, so that the guide needle 21 stops swinging at the first station 31, the corresponding guide needle 21 stops swinging at the second station 32 by using the limiting assembly 24 or the guide needle 21 stops swinging at the third station 33 by using the limiting assembly 24, and the guide needle 21 can stop swinging at three different stations after being blocked by the corresponding limiting assembly 24, thereby realizing the effect that the guide needle 21 can be switched back and forth in three stations.

Referring to fig. 1, 2 and 3, in this embodiment, the moment of the specific limiting component 24 is greater than the moment of the piezoelectric jacquard component 4, and by setting that the moment of the limiting component 24 is greater than the moment of the piezoelectric jacquard component 4, on one hand, the thrust provided by the limiting component 24 is greater than the swinging force of the yarn guide needle 21 in the piezoelectric jacquard component 4, so that the yarn guide needle 21 is effectively supported, the yarn guide needle 21 stops swinging after being blocked by the limiting component 24, and further the yarn guide needle 21 is effectively limited to switch between the second station 32 and the third station 33, and on the other hand, the yarn guide needle 21 is prevented from being blocked by the limiting component 24 and then cannot be flushed through the blocking of the limiting component 24, so that the condition of needle deflection is prevented, and the double-sided effect is achieved.

Referring to fig. 1, 2 and 3, in the needle selecting method of the jacquard comb, the first piezoelectric ceramic plate 41 of the piezoelectric jacquard element 4 drives the yarn guide needle 21 to swing left and right after being electrified, so that the yarn guide needle 21 is respectively switched back and forth between the first station 31, the second station 32 and the third station 33, the distance between the first station 31 and the third station 33 is two needle pitches, the distance between the third station 33 and the second station 32 is one needle pitch, the first station 31 is the head needle position of the yarn guide needle 21, the third station 33 is the tail needle position of the jacquard needle, and the second station 32 is positioned at the middle position between the first station 31 and the third station 33.

Referring to fig. 1, 2 and 3, when the yarn guide needle 21 stops swinging at the third station 33, the stopper assembly 24 abuts against a corresponding portion of the yarn guide needle 21, and at this time, the stopper assembly 24 is used to block the yarn guide needle 21, and the yarn guide needle 21 is blocked by the blocking piece 22 of the stopper assembly 24 from stopping swinging at the third station 33.

Referring to fig. 1, 2 and 3, when the yarn guide needle 21 stops swinging at the second station 32, the limiting assembly 24 is configured to apply a pushing force to the yarn guide needle 21 so that the yarn guide needle 21 stops swinging at the second station 32, and in this embodiment, the limiting assembly 24, which may be specifically the needle position selector 2, pushes the yarn guide needle 21 to move from the third station 33 to the second station 32.

Referring to fig. 1, 2 and 3, when the guide needle 21 is at the first station 31, the guide needle 21 is stopped from swinging at the first station 31 by the guide teeth 3.

Referring to fig. 1, 2 and 3, the limiting assembly 24 is provided on the side of the yarn guide 21 facing the third station 33.

Referring to fig. 1, 2 and 3, when the warp knitting machine only needs to use the jacquard comb of the double station, only the stop assembly 24 needs to be controlled to stop at the third station 33.

Referring to fig. 1, 2 and 3, when the warp knitting machine needs to use the jacquard comb of three stations, the limit assembly 24 is controlled to reciprocate at the third station 33 or the second station 32.

Embodiment two, referring to fig. 2 and 4, the difference between the present embodiment two and the embodiment one is that: the piezoelectric jacquard device further comprises a plurality of first accommodating seats 11 arranged on the base 1 and a plurality of second accommodating seats 12 arranged on the base 1, wherein the first accommodating seats 11 are provided with first fixing parts 111 for mounting the piezoelectric jacquard elements 4, the second accommodating seats 12 are provided with second fixing parts 112 for mounting the limiting assemblies 24, and the first accommodating seats 11 are positioned on the opposite sides of the second accommodating seats 12.

Referring to fig. 2 and 4, by arranging the first accommodating seat 11 on the opposite side of the second accommodating seat 12, on one hand, different moments can be effectively generated between the piezoelectric jacquard element 4 and the limiting component 24, and on the other hand, the piezoelectric jacquard element 4 and the limiting component 24 with different moment lengths can be conveniently installed, so that the two functions of one hand are achieved.

Referring to fig. 2 and 4, the second piezoelectric ceramic sheet 23 is provided longer in order to increase the force distance of the second piezoelectric ceramic sheet 23, and the force distance of the second piezoelectric ceramic sheet 23 is larger than the moment of the first piezoelectric ceramic sheet 41 due to the need to realize three working positions.

Referring to fig. 2 and 4, the first piezoelectric ceramic piece 41 of the piezoelectric jacquard element 4 is interchangeably mounted on the first fixing portion 111, and the second piezoelectric ceramic piece 23 of the spacing assembly 24 is interchangeably mounted on the second fixing portion 112.

Referring to fig. 2 and 4, the first and second accommodation seats 11 and 12 may be disposed on the upper surface side of the base 1, in which case the first and second piezoelectric ceramic plates 41 and 23 are respectively stacked above the base 1, or (referring to fig. 6), the first accommodation seat 11 may be disposed on the upper surface side of the base 1, and the second accommodation seat 12 may be disposed on the lower surface side of the base 1, in which case the first piezoelectric ceramic plate 41 is disposed above the base 1 and the second piezoelectric ceramic plate 23 is disposed below the base 1.

Referring to fig. 2 and 4, more specifically, when the first piezoelectric ceramic sheet 41 and the second piezoelectric ceramic sheet 23 are respectively stacked and disposed above the susceptor 1, the first piezoelectric ceramic sheet 41 may be stacked and disposed above or below the second piezoelectric ceramic sheet 23.

Referring to fig. 4, by arranging the second piezoelectric ceramic plates 23 under the first piezoelectric ceramic plates 41 in a stacked manner, on one hand, the second piezoelectric ceramic plates 23 can be more closely mounted on the base 1, so that the blocking plate 22 can be more closely extended into the corresponding guide comb teeth 3, the limit effect of the blocking plate 22 on the yarn guide needle 21 is improved, and on the other hand, the blocking plate 22 is driven by the second piezoelectric ceramic plates 23 to move in the guide comb teeth 3 to achieve the effect of increasing the stations of the yarn guide needle 21, so that the effect of achieving two purposes is achieved.

Referring to fig. 2, by arranging the second piezoelectric ceramic plates 23 stacked above the first piezoelectric ceramic plates 41, the limit portion extends into the space between the two guide teeth 3, on one hand, under the condition that the swing of the existing first piezoelectric ceramic plates 41 is not affected, the second piezoelectric ceramic plates 23 are arranged to drive the limit portion to swing, so that jacquard yarn guiding of the original two stations of the yarn guiding needle 21 is not affected, the swing stability of the original yarn guiding needle 21 is kept, on the other hand, the corresponding yarn guiding needle 21 is blocked by the limit portion, so that the yarn guiding needle 21 stops swinging at the preset position of the limit portion, the effect of increasing the number of stations of the yarn guiding needle 21 is achieved, and the effect of achieving two purposes is achieved.

Other structures are similar to those of the first embodiment and will not be described again.

Embodiment III referring to FIGS. 1, 2 and 3, the present embodiment III is different from embodiment one in that: the stopper assembly 24 includes a plurality of bending movers 25 swingable left and right after being energized, and a plurality of stoppers 22 provided on the front portions of the corresponding bending movers 25, respectively.

Referring to fig. 1, 2 and 3, at least a part of the blocking piece 22 is driven by the bending shifter 25 to displace along the moving direction, a part of the blocking piece 22 is arranged on the moving path of the yarn guiding needle 21 transversely to the moving direction, and the other part of the blocking piece 22 extends between the corresponding second station 32 and the corresponding third station 33, so that when the yarn guiding needle 21 abuts against the blocking piece 22, the blocking piece 22 is used for limiting the displacement of the corresponding yarn guiding needle 21 along the moving direction.

Referring to fig. 1, fig. 2 and fig. 3, by arranging the bending fluctuation device 25 to drive the corresponding blocking pieces 22 to swing, on one hand, each blocking piece 22 can be independently switched between the second station 32 and the third station 33, so that each corresponding yarn guide needle 21 can independently enter the second station 32 or the third station 33, thereby effectively realizing the technical requirements of three stations, on the other hand, the bending fluctuation device 25 has a simple structure and is easy to control, the overall technical difficulty of the jacquard comb is reduced, the stability of blocking the yarn guide needle 21 after the blocking plate 23 is switched between the three stations is improved, and the double-purpose effect is achieved.

Referring to fig. 1, 2 and 3, the piezoelectric jacquard element 4 includes at least one deformable first substrate, at least one bar holding end 43 provided on the front of the first substrate, first piezoelectric ceramic plates 41 wrapped on both sides of the first substrate, and two first power receiving ends 431 provided on both sides of the rear of the first substrate, and the first substrate may be a fiberglass plate. The guide needle 21 is provided on the front portion of the bar gripping end 43.

Referring to fig. 1, 2 and 3, the bending transducer 25 includes at least one deformable second substrate, a second piezoceramic sheet 23 wrapped around two sides of the second substrate, and two second electrical terminals 432 disposed on two sides of the tail of the second substrate, and the second substrate may be a fiberglass board. The baffle 22 is disposed on the front portion of the second substrate, and the baffle 22 may have an inverted L shape. The first electrical terminal 431 and the second electrical terminal 432 may be conductive copper sheets.

Referring to fig. 1, 2 and 3, a portion of the guide bar teeth 3 is used to block a portion of the guide needle 21 from stopping swinging at the first station 31, another portion of the guide bar teeth 3 is used to block a portion of the corresponding blade 22 from stopping swinging at the third station 33, and another portion of the corresponding blade 22 is used to block another portion of the guide needle 21 from stopping swinging at the second station 32.

Referring to fig. 1, 2 and 3, the guide bar teeth 3 include at least one guide bar tooth body 311 provided on the front portion of the base 1, at least one first blocking portion 312 for blocking the swing of the guide pin 21 at the first station 31, at least one second blocking portion 313 for blocking the swing of the blocking piece 22 at the second station 32, at least one third blocking portion 314 for blocking the swing of the blocking piece 22 at the third station 33, at least one first cavity 400 for accommodating the movement of the guide pin 21, and at least one second cavity 402 for accommodating the movement of the blocking piece 22. The first blocking portion 312, the second blocking portion 313 and the third blocking portion 314 are sequentially arranged on the guide comb tooth body 311 at intervals from left to right.

Referring to fig. 1, 2 and 3, when the blocking piece 22 of the limiting assembly 24 stops on the first blocking portion 312, the distance from the blocking piece 22 to the first station 31 is two pitches, and the second piezoceramic sheet 23 drives the blocking piece 22 to swing back and forth between the second blocking portion 313 and the third blocking portion 314.

Referring to fig. 1, 2 and 3, a portion of the third blocking portion 314 is integrally connected with a portion of the second blocking portion 313, a portion of the third blocking portion 314 is integrally connected with the base 1, the guide bar tooth body 311, the first blocking portion 312, the second blocking portion 313 and the third blocking portion 314 are integrally molded and cast to form a whole, wherein the base 1, the second blocking portion 313 and the third blocking portion 314 are integrally molded and cast to form a whole of the shape of the step 315. The monolith may be a detachable monolith or a non-detachable monolith.

Referring to fig. 1, 2 and 3, the base 1, the second blocking portion 313 and the third blocking portion 314 are integrally formed and cast to form an integral shape of the step 315, so that the die casting can be used, the production efficiency is effectively improved, the production cost is reduced, and the dimensional errors of the components are reduced in a controllable range in the batch production process.

Referring to fig. 1, 2 and 3, by providing the second blocking portion 313 and the third blocking portion 314, on one hand, the blocking piece 22 has a positioning effect in the switching process of the second station 32 and the third station 33, so that the switching of each blocking piece 22 between the second station 32 and the third station 33 is mutually independent, and is not affected by other blocking portions or the yarn guide needle 21, and on the other hand, in the switching process of the blocking piece 22, the normal jacquard yarn guide work of the yarn guide needle 21 is not affected, thereby achieving the effect of achieving two purposes.

Referring to fig. 1, 2 and 3, another portion of the flap 22 extends into one side of the second blocking portion 313, and one side of the second blocking portion 313 is between the second station 32 and the third station 33.

Referring to fig. 1, 2 and 3, by setting the first cavity 400 and the second cavity 402, on one hand, the baffle 22 is only set to swing in the second cavity 402, so that the baffle 22 is only used for controlling the switching of the second station 32 and the third station 33, and the first station 31 is not affected, thus improving the overall stability, and on the other hand, the left and right sides of the second cavity 402 are respectively the second blocking part 313 and the third blocking part 314, thereby accurately and effectively positioning the specific positions of the second station 32 and the third station 33, improving the accuracy of the baffle 22 in the station switching process, reducing errors, and playing a double-purpose role.

Referring to fig. 1, 2 and 3, in the present embodiment, the specific distance between the first blocking portion 312 and the second blocking portion 313 is one gauge, and when the swing of the blocking piece 22 is stopped after being blocked by the third blocking portion 314, the distance between the second blocking portion 313 and the blocking piece 22 stopped at the side of the third blocking portion 314 is one gauge.

Referring to fig. 1, 2 and 3, in the present embodiment, fig. 3 specifically shows that when the blocking piece 22 is blocked by the second blocking portion 313, the blocking piece 22 stops swinging at the second station 32, and the blocking piece 22 is used to block the yarn guiding needle 21 from stopping swinging at the second station 32.

Referring to fig. 1, 2 and 3, when the blocking piece 22 is blocked by the third blocking portion 314, the blocking piece 22 stops swinging at the third station 33, and at this time, the blocking piece 22 is used to block the yarn guiding needle 21 from swinging at the third station 33.

Referring to fig. 1, 2 and 3, the moment of the second piezoceramic sheet 23 is greater than the moment of the first piezoceramic sheet 41, so that the thrust force provided by the blocking sheet 22 to the yarn guiding needle 21 is greater than the pressure generated by the yarn guiding needle 21 to the blocking sheet 22, when the blocking sheet 22 swings from the third station 33 towards the second station 32, the blocking sheet 22 can push the yarn guiding needle 21 to move from the third station 33 towards the second station 32 and finally stop at the second station 32 because the blocking sheet 22 stops after being blocked by the second blocking part 313, and the yarn guiding needle 21 stops at the second station 32 because the moment is smaller than the moment of the blocking sheet 22 and is pushed to the second station 32.

Referring to fig. 1, 2 and 3, in addition, the length of the second piezoceramic sheet 23 may be greater than that of the first piezoceramic sheet 41, so that the moment of the second piezoceramic sheet 23 is greater than that of the first piezoceramic sheet 41, so that the blocking sheet 22 can effectively block the impact of the yarn guide needle 21 on the blocking sheet 22, and the yarn guide needle 21 can be blocked by the blocking sheet 22 on the second station 32 or the third station 33, thereby improving the stability and accuracy in the three-station switching process.

Wherein the blocking piece 23 and the yarn guiding needle 21 are shown in fig. 3 at the second station 32.

Other structures are similar to those of the first embodiment and will not be described again.

Embodiment four, referring to fig. 5, the difference between this embodiment four and embodiment one is that: the space between the second station 32 and the third station 33 is configured as a first recess 51, the first recess 51 being configured to accommodate a portion of the guide pin 21, the first recess 51 being one gauge in width, the space between the first station 31 and the third station 33 being configured as a second recess 52, the second recess 52 being configured to accommodate another portion of the flap 22, the second recess 52 being two gauges in width.

Wherein the flap 23 is shown in fig. 5 at the second station 32.

Other structures are similar to those of the first embodiment and will not be described again.

Embodiment five, referring to fig. 6, differs from embodiment three in that: the jacquard comb further comprises at least one jacquard driving device 61, the jacquard driving device 61 comprises at least one first driving circuit board 62 with a first driving circuit, a plurality of first electric connection ports 63 arranged on the first driving circuit board 62, at least one second driving circuit board 64 with a second driving circuit and a plurality of second electric connection ports 65 arranged on the second driving circuit board 64, an output end of the first driving circuit board 62 is electrically connected with the first electric connection ends 431 of the piezoelectric jacquard elements 4 in a coupling mode, the first electric connection ports 63 are used for transmitting electric signals, an output end of the second driving circuit board 64 is electrically connected with the second electric connection ends 432 of the second piezoelectric ceramic plates 23 in a coupling mode, and the second electric connection ports 65 are used for transmitting electric signals.

Referring to fig. 6, the first driving circuit board 62 includes a first printed circuit board 66 and a first driving circuit disposed on the first printed circuit board 66, the first driving circuit is used for driving the first piezoelectric ceramic plate 41 of the piezoelectric jacquard element 4 to swing, and the first power receiving ports 63 may be disposed on the left and right sides of the first printed circuit board 66, respectively.

Referring to fig. 6, the second driving circuit board 64 includes a second printed circuit board 68 and a second driving circuit disposed on the second printed circuit board 68, and the second driving circuit is used for driving the second piezoelectric ceramic plate 23 of the piezoelectric jacquard element 4 to swing. The second power receiving ports 65 may be provided on left and right sides of the second printed circuit board 68, respectively.

Referring to fig. 6, in the present embodiment, a first connector 67 may be provided on the front of the first printed circuit board 66 such that the output end of the first driving circuit board 62 is electrically connected to the first connection end 431 of the piezoelectric jacquard element 4 in a plug-in manner through the first connector 67.

Referring to fig. 6, in the present embodiment, a second connector 69 may be disposed on the front portion of the second printed circuit board 68, so that the output end of the second driving circuit board 64 and the second electrical connection end 432 of the second piezoceramic wafer 23 are electrically connected in a plug-in manner through the second connector 69.

The circuit structure of the driving circuit can refer to Chinese patent (application number: 202123378011.8, publication number: CN 218124570U) or Chinese patent (application number: 202121926084.3, publication number: CN 217486404U), and the disclosed driving circuit structure or other driving circuit structure for driving the piezoelectric ceramic plate to swing can also be applied in the field.

Other structures are similar to those of the first embodiment and will not be described again.

Embodiment six, referring to fig. 2 and 3, is different from embodiment three in that: the upper surface of the base 1 is respectively provided with a bending transducer 25 with a second piezoelectric ceramic plate 23 and a piezoelectric jacquard element 4 with a first piezoelectric ceramic plate 41, the bending transducer 25 is arranged above the piezoelectric jacquard element 4 in a lamination way, at least one part of the baffle 22 is driven by the bending transducer 25 to displace along the moving direction, the baffle 22 extends into a space between two guide bar teeth 3, the baffle 22 is used for blocking the displacement of one part of the yarn guide needle 21 along the moving direction, and when one part of the yarn guide needle 21 is abutted to the baffle 22 in a swinging way, the needle position of the yarn guide needle 21 is limited on one side of the baffle 22 to stop swinging. The blocking piece 22 is arranged in the movement space of the thread guide needle 21 in a staggered manner transversely to the displacement direction. The specific second piezoelectric ceramic sheet 23 is stacked above the first piezoelectric ceramic sheet 41 in the present embodiment, and the moment of the second piezoelectric ceramic sheet 23 is larger than the moment of the first piezoelectric ceramic sheet 41.

Referring to fig. 2 and 3, the width of the guide needle 21 in the moving direction is larger than the width of the blocking piece 22 in the moving direction.

Referring to fig. 2 and 3, each of the blades 22 is held on a portion of the comb teeth 3 in at least two different positions.

Other structures are similar to those of the embodiment, and will not be described again.

Embodiment seven, referring to fig. 4 and 5, the present embodiment seven is different from embodiment three in that: the upper surface of the base 1 is respectively provided with a bending transducer 25 with a second piezoelectric ceramic plate 23 and a piezoelectric jacquard element 4 with a first piezoelectric ceramic plate 41, the bending transducer 25 is arranged below the piezoelectric jacquard element 4 in a lamination mode, at least one part of the baffle 22 is driven by the bending transducer 25 to displace along the moving direction, the baffle 22 extends into the corresponding guide comb teeth 3, and the yarn guide needle 21 swings between the corresponding guide comb teeth 3 and the corresponding baffle 22.

Referring to fig. 4 and 5, a specific second piezoelectric ceramic sheet 23 is stacked under the first piezoelectric ceramic sheet 41 in the present embodiment, and the moment of the second piezoelectric ceramic sheet 23 is larger than that of the first piezoelectric ceramic sheet 41.

Other structures are similar to those of the embodiment, and will not be described again.

Embodiment eight referring to fig. 6 and 7, the present embodiment eight is different from embodiment one in that: the jacquard comb comprises at least one base 1, a plurality of guide bar teeth 3 arranged on the front part of the base 1, at least one piezoelectric jacquard element 4 arranged on the upper surface of the base 1, at least one needle position selector 2 arranged on the lower surface of the base 1, a plurality of grooves 71 arranged on the front part of the base 1, at least one first fixing part 111 arranged on the upper surface of the base 1 and at least one second fixing part 112 arranged on the lower surface of the base 1, wherein the width of each groove 71 is one needle pitch, the tail part of the base 1 can be mounted on a guide rod of a Raschel warp knitting machine through a connecting piece, and the connecting piece can be directly locked on a mounting seat of the guide rod through screws.

Referring to fig. 6 and 7, each second piezoceramic sheet 23 may drive the corresponding baffle plate 23 to swing left and right, and a portion of the baffle plate 23 extends into the corresponding guide bar teeth 3. A part of the first piezoelectric ceramic piece 41 is mounted on the first fixing portion 111, and a part of the second piezoelectric ceramic piece 23 is mounted on the second fixing portion 112.

Referring to fig. 6 and 7, by setting the moment of the second piezoceramic wafer 23 to be greater than the moment of the piezoelectric jacquard element 4, the other part of the shutter 23 is used to push the corresponding yarn guide needle 21 to move from the third station 33 into the second station 32.

Referring to fig. 6 and 7, the moment of the second piezoceramic wafer 23 is greater than the moment of the piezoelectric jacquard element 4, so that when the thread guide needle 21 stops swinging at the second station 32, another part of the shutter 23 also serves to block the thread guide needle 21.

Referring to fig. 6 and 7, by arranging the baffle plates 23 and the yarn guide needles 21 in the guide comb teeth 3, the corresponding second piezoelectric ceramic plates 23 drive the corresponding baffle plates 23 to swing left and right in the guide comb teeth 3, so that the position of each baffle plate 23 can be independently controlled and is not influenced by other second piezoelectric ceramic plates 23, on the other hand, the other part of the baffle plates 23 is used for pushing the corresponding yarn guide needles 21 to move from the third station 33 to the second station 32, so that the yarn guide needles 21 are always kept at one side position of the baffle plates 23 in the position switching process of the second station 32 and the third station 33, the situation that the jacquard comb with three stations deflects the needles is prevented, and the double effects are achieved.

Referring to fig. 6 and 7, by disposing the piezoelectric jacquard element 4 having the first piezoelectric ceramic plate 41 on the upper surface of the base 1 and disposing the second piezoelectric ceramic plate 23 on the lower surface of the base 1, on the one hand, on the premise of not affecting the installation of the yarn guide needle 21, the second piezoelectric ceramic plate 23 and the baffle plate 22 are mounted by using the lower surface of the base 1, so that the swinging between the first piezoelectric ceramic plate 41 and the second piezoelectric ceramic plate 23 is independent and complementary and not affected, thereby effectively maintaining the stability of the piezoelectric jacquard element 4 and the limiting assembly 24 during the long-term swinging respectively, and on the other hand, by disposing the second piezoelectric ceramic plate 23 on the lower surface of the base 1, a part of the baffle plate 23 extends into the comb teeth 3 better, thereby achieving the two-purpose effect.

Referring to fig. 6 and 7, each guide needle 21 is adaptively provided with a corresponding guide tooth 3 and a corresponding blocking plate 23, the corresponding guide tooth 3 being located on the moving space of one side of the guide needle 21, and another portion of the corresponding blocking plate 23 being located on the moving space of the other side of the guide needle 21.

Referring to fig. 6 and 7, on one hand, by providing the guide bar teeth 3 on the moving space of one side of the guide needle 21 such that the guide bar teeth 3 stop the swing of the guide needle 21 at the head needle position, and on the other hand, the other part of the corresponding barrier 23 is on the moving space of the other side of the guide needle 21 such that the barrier 23 switches positions on the other side of the guide needle 21 to increase the number of stations on the other side of the guide needle 21.

Referring to fig. 6 and 7, one side of the groove 71 is integrally connected with a corresponding guide bar tooth 3, and the other side of the groove 71 extends to a position intermediate two adjacent guide bar teeth 3.

Referring to fig. 6 and 7, each groove 71 penetrates from the upper surface of the base 1 to the lower surface of the base 1, and the left and right sides of each groove 71 are provided with a corresponding guide bar tooth 3, and the baffle 23 extends into the groove 71 from the bottom of the groove 71 such that at least a portion of the baffle 23 extends between the two guide bar teeth 3.

Referring to fig. 6 and 7, by providing the slot 71, on one hand, the slot 71 can facilitate the baffle 23 to extend between two adjacent guide teeth 3, and swing in the slot 71, and on the other hand, the width of the slot 71 can be used for limiting the moving distance of the baffle 23, so that the baffle 23 is accurately and effectively limited to switch back and forth among the first station, the second station and the third station, and the dual-purpose effect is achieved.

Referring to fig. 6 and 7, when the second electrical terminal 432 is energized, the second piezoceramic sheet 23 drives the baffle 23 to swing together in the two slots 71.

Referring to fig. 6 and 7, the guide bar teeth 3, the base 1, the first fixing portion 111, and the second fixing portion 112 may be made of a magnesium alloy material, an aluminum alloy material, or a magnesium aluminum alloy material.

Referring to fig. 6 and 7, the first cavity 400 is provided at the upper side of the slot 71, the first cavity 400 communicates with the slot 71, the upper portion of the flap 22 swings left and right with respect to the first cavity 400, and the lower portion of the flap 22 swings left and right with respect to the slot 71.

Referring to fig. 6 and 7, by providing the first cavity 400 and the slot 71, on one hand, the baffle 22 is only arranged in the slot 71 to swing, so that the baffle 22 is only used for controlling the switching of the second station 32 and the third station 33, and the first station 31 is not affected, thereby improving the overall stability, and on the other hand, the left and right sides of the slot 71 are respectively the second blocking part 313 and the third blocking part 314, thereby accurately and effectively positioning the specific positions of the second station 32 and the third station 33, improving the accuracy of the baffle 22 in the station switching process, reducing errors, and playing a role in two purposes.

In the embodiment, the jacquard comb realizes the working principle of three stations:

the swing amplitude of the double-station jacquard comb is a slot needle position, and the swing amplitude of the three-station jacquard comb is two slot needle positions (two needle pitches) due to the addition of a station state, namely: without traversing, its swing is two grooved pins (two pitches).

Referring to fig. 6 and 7, the three-position jacquard comb means that the guide needle 21 can be accurately stopped at the intermediate position (i.e., the second position 32 position) in addition to swinging left and right.

Referring to fig. 6 and 7, the jacquard comb of the double station can only swing left and right, the rest position is fixed and accurate, the guide teeth 3 of the base 1 are toothed according to calculated data, the guide needle 21 swings left or right to rest on the tooth wall, and the needle position is correct as long as the tooth wall distance is correct because the tooth wall distance is calculated. The piezoelectric ceramic plates can generate a swinging force distance after being charged, the complete piezoelectric ceramic plates capable of swinging left and right are formed by bonding two single piezoelectric ceramic plates on a glass fiber plate in a combined mode, each single piezoelectric ceramic plate is responsible for one swinging direction, namely one single piezoelectric ceramic plate charges the other piezoelectric ceramic plate and discharges, namely the correct swinging force distance can be generated, and the piezoelectric ceramic plates swing leftwards or rightwards, which is the basic swinging principle of the piezoelectric ceramic plates.

Referring to fig. 6 and 7, as long as a sufficient force distance is generated, the guide needle 21 is tightly pressed against the wall surface of one side of the guide bar teeth 3 by the driving of the first piezoelectric ceramic plate 41, and is not biased by the yarn, so that the guide needle can accurately pass through the centers of the two groove needles.

Referring to fig. 6 and 7, in which the width of the slot 71 is one gauge width and the width of the first cavity 400 is two gauges width, there is a second blocking portion 313 between the slot 71 and the first cavity 400, and the second blocking portion 313 may have a step 315 shape.

Referring to fig. 6 and 7, the first piezoceramic sheet 41 drives the yarn guide needle 21 to swing in the first cavity 400, and the yarn guide needle 21 is located higher than the second blocking portion 313, so that the yarn guide needle is not affected by the second blocking portion 313, and the width of the first cavity 400 is the width of two pitches, so that the first piezoceramic sheet 41 drives the yarn guide needle 21 to swing in the first cavity 400 by two pitches.

Referring to fig. 6 and 7, when the barrier 22 at the front end of the second piezoelectric ceramic piece 23 moves after the second piezoelectric ceramic piece 23 is disposed, the barrier 22 falls in the slot 71 while being swung because the bottom of the barrier 22 is lower than the second barrier 313, so that the upper portion of the barrier 22 is restricted to swing only left and right in the first cavity 400 because the barrier 22 is blocked by the second barrier 313 and the third barrier 314, and because the first cavity 400 is disposed to have a width of two pitches, the barrier 22 can swing left and right in the first cavity 400 because of the barrier of the second barrier 313. Since the second blocking portion 313 limits the blocking piece 22, the blocking piece 22 can only swing between the second blocking portion 313 and the third blocking portion 314.

With reference to fig. 6 and 7, the following describes how the three-station jacquard comb is switched between three stations, and the description is made in terms of left, middle and right, respectively:

referring to fig. 6 and 7, when the yarn guide needle 21 is on the left (first station 31): the driving circuit controls the first piezoceramic sheet 41 to swing left, and the needle position is at the leftmost position (the first station 31). At this time, the position of the blocking piece 22 may be any position, and the current leftmost needle position (the first station 31) is not affected.

Referring to fig. 6 and 7, when the yarn guide needle 21 is in the middle (second station 32): the driving circuit controls the second piezoceramic sheet 23 to enable the blocking sheet 22 to swing leftwards, and simultaneously controls the yarn guiding needle 21 to swing rightwards, and at the moment, the blocking sheet 22 is blocked by the second blocking part 313. Since the force distance of the blocking piece 22 is larger than that of the yarn guiding needle 21, the yarn guiding needle 21 is pressed against the blocking piece 22 at this time, and the blocking piece 22 is not pushed away to cause needle deflection, so that the blocking piece 22 stops after being blocked by the second blocking part 313, and the yarn guiding needle 21 is pressed against the blocking piece 22, and the position of the blocking piece 22 when stopping at one side of the second blocking part 313 is just one needle distance (namely, the position of the second station 32) which is equivalent to the position of the yarn guiding needle 21 at the middle station (namely, the position of the second station 32) at this time.

Referring to fig. 6 and 7, when the yarn guide needle 21 is on the right (third station 33): the driving circuit controls the left swing of the first piezoelectric ceramic plate 41 to enable the yarn guide needle 21 to swing rightwards, and simultaneously controls the baffle plate 22 in front of the second piezoelectric ceramic plate 23 to swing rightwards, the yarn guide needle 21 is positioned at the right position, and the yarn guide needle 21 is positioned at the rightmost position (the third station 33) because the width is preset in the groove milling process of the first guide comb teeth 3, and the position of the yarn guide needle 21 pressed on the baffle plate 22 is just two needle pitches under the condition of containing the thickness of the baffle plate 22.

Wherein the blocking piece 23 and the yarn guiding needle 21 are positioned at the second station 32 as shown in fig. 6.

Other structures are similar to those of the first embodiment and will not be described again.

Embodiment nine, referring to fig. 2 and 4, the present embodiment nine is different from embodiment three in that: the jacquard comb further comprises at least one first power supply device 81, the first power supply device 81 is provided with at least one first connector 67, at least one first cable 72 for supplying power to the first connector 67, at least one second connector 69 and at least one second cable 73 for supplying power to the second connector 69, the power supply end of the first connector 67 is arranged on the first power connection end 431 of the piezoelectric jacquard element 4 in a pluggable manner so as to realize electric connection, and the power supply end of the second connector 69 is arranged on the second power connection end 432 of the second piezoelectric ceramic piece 23 in a pluggable manner so as to realize electric connection.

Other structures are similar to those of the first embodiment and will not be described again.

Embodiment ten referring to fig. 1 to 7, this embodiment ten is different from the first embodiment in that: by providing the needle position selector 2, the yarn guide needles 21 in the jacquard comb can perform jacquard yarn guide at the first station 31, the second station 32 and the third station 33 respectively. Thereby being applicable to the requirements of the knitting method of the warp knitting jacquard product of the three-station jacquard.

Referring to fig. 1, the warp knitting jacquard product knitting method includes: the warp knitting jacquard product is formed by knitting yarn guide needles 21 of a three-station jacquard comb, the jacquard comb is configured by adopting a third machine number and consists of JB1.1, JB1.2 and JB1.3 together, and reverse jacquard is adopted.

In the knitting method, the first yarn deflection signal of the thick structure is 0011, the knitting motion with the yarn number of 1-0/2-3// is carried out, the second yarn deflection signal is 1122, and the knitting motion with the yarn number of 2-1/3-4// is carried out.

When the control signal for thick tissue is 0011, the needle backs in front of the even numbered rows are offset by one needle, and a loop is formed in the third slave row.

When the control signal for thick tissue is 1122, the needle backs in front of the even numbered rows are offset by two needles and are looped in the fourth column.

When the thick tissue control signal is 2200, the odd courses are offset by two needles on the back of the needle, looping in the third column, and the even courses are unchanged.

In the thin structure, when the offset signal of each jacquard structure unit of the odd yarns is 0000 and 2200, the looping motion of the yarn padding digital number is 1-0/1-2/3-2/1-2// is carried out, the offset signal of each jacquard structure unit of the even yarns is 2200 and 0000, the looping motion of the yarn padding digital number is 3-2/1-2/1-0/1-2// is carried out, the small oval mesh effect can be obtained, the width of the mesh is about one needle pitch, and the height is about two courses;

when the odd yarns rotate, namely the offset signals of the 1,5,9 and 13 … … yarns are 0000 and 2200, the yarn is subjected to looping motion with the number of 1-0/1-2/3-2/1-2// as the yarn to be padded, the offset signals of the 3,7, 11 and 15 … … yarns are 2200 and 0000, the yarn is subjected to looping motion with the number of 3-2/1-2/1-0/1-2// as the yarn to be padded, the offset signals of the even yarns are 1100, the yarn is subjected to looping motion with the number of 2-1/1-2// as the yarn to be padded, the diamond mesh effect can be obtained, wherein the odd-numbered course needle is offset by one needle before the two-column needle to form a heavy warp structure, and the even-numbered course is unchanged.

The float stitch is composed of upper float and lower float, and is looped in the first and fourth courses, (a) the float stitch straddles the right three needles, (b) the float stitch straddles the four needles, (c) the float stitch straddles the middle two needles, and (d) the float stitch straddles the left three needles. In contrast, when a double float is used between two floats, a longer float is obtained, not limited to one, and at the same time, the floats are longer when the floats are upper and lower floats than when upper and lower floats are upper and lower floats.

When the control signal for the float tissue is 2210, the odd columns are offset by two needles on the back of the needle before the needle, the third column is looped, and the even columns are offset by one needle before the needle. Looping in the first, second and third wales.

When the control signal of the float structure is 0110, forming double floats, the odd-numbered columns are offset by one needle at the back of the needle, and the even-numbered columns are offset by one needle in front of the needle. When the double float thread structure is matched with other structures, floats with different lengths and directions can be generated.

In the mesh tissue, when the control signal is 2211, the odd columns are offset by two needles at the front needle backs of the needles, and are looped in the third wale, and the even columns are offset by one needle at the front needle backs of the needles, and are looped in the third wale.

Tissue filling: the large diamond-shaped mesh fabric is formed by combining color blocks of 0, 1 and 2, wherein the number of the large diamond-shaped mesh fabric is 1-0/1-2/2-3/1-2// and 2-1/1-2/2-1/1-2//.

The number of the yarn-laying codes formed by combining the color blocks of the No. 1 and the No. 2 is 1-0/1-2/3-2/1-2/3-2/1-2/3-2/1-0/1-2/1-0/1-2// and 3-2/1-2/1-0/1-2/1-0/1-2/1-0/1-2/3-2/1-2/3-2/1-2// mesh-rarefaction-thickness-rarefaction-mesh three-layer progressive fabric.

Compared with two offset signals of 0 and 1 of the two-station jacquard, the offset signal 2 added in the three-station jacquard technology has larger coil offset position at the moment, can form larger mesh tissues, and can realize the condition that two extension lines formed by the two-station Gu Kazhong reverse jacquard technology are crossed when the two-station jacquard is combined with other tissues, if the three-level tissue effect of mesh-thin-thick-thin-mesh is obtained, the tissues are reasonably matched for use, the jacquard fabric patterns are richer and more changeable, and the degree of freedom of pattern design is higher when the jacquard fabric is designed independently.

Other structures are similar to those of the first embodiment and will not be described again.

The foregoing is merely illustrative of specific embodiments of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modification of the present invention by using the design concept shall fall within the scope of the present invention.

Claims (10)

1. The utility model provides a merchant card comb, includes at least one base and a plurality of piezoelectric merchant card component that set up on the base part, every piezoelectric merchant card component all has the guide needle that can independently swing, the first station of guide needle is first needle position, the third station of guide needle is the tail needle position, first station with distance between the third station is two needle distances, its characterized in that: the yarn guiding device further comprises at least one needle position selector arranged on the other part of the base, when the moment of the needle position selector is larger than that of the yarn guiding needle, the needle position selector pushes the yarn guiding needle to move to a second station, and the second station is arranged at the middle position between the first station and the third station.

2. A jacquard comb as claimed in claim 1, wherein: the guide bar needle position selector comprises a plurality of guide bar teeth which are arranged on the front portion of the base, wherein the guide bar teeth comprise a plurality of limiting assemblies which can swing independently respectively, one part of each guide bar tooth is used for blocking the corresponding part of each guide bar needle, so that the corresponding guide bar needle stops swinging at a first station, when the limiting assemblies swing and are abutted to the other part of the corresponding guide bar teeth, the limiting assemblies are used for blocking the corresponding guide bar needle from stopping swinging at a second station, and when the limiting assemblies swing to the opposite side of the guide bar teeth, the limiting assemblies are used for blocking the corresponding guide bar needle from stopping swinging at a third station.

3. A jacquard comb as claimed in claim 2, wherein: and at least one corresponding limiting component is arranged on the opposite side of each guide bar tooth.

4. A jacquard comb according to claim 3, wherein: the limiting component comprises a plurality of bending variators which can swing left and right after being electrified and a plurality of baffle plates which are respectively arranged on the front parts of the corresponding bending variators, at least one part of the baffle plates are driven by the bending variators to move along the moving direction, one part of the baffle plates is arranged on the moving path of the yarn guide needle transversely to the moving direction, and the other part of the baffle plates stretches into the space between the corresponding second station and the corresponding third station, so that when the yarn guide needle is abutted on the baffle plates, the baffle plates are used for limiting the corresponding yarn guide needle to move along the moving direction.

5. A jacquard comb as claimed in claim 4, wherein: the guide teeth comprise at least one guide tooth body arranged on the front part of the base, at least one first blocking part used for blocking the yarn guide needle from stopping swinging at the first station, at least one second blocking part used for blocking the baffle plate from stopping swinging at the second station, at least one third blocking part used for blocking the baffle plate from stopping swinging at the third station, at least one first cavity capable of containing the movement of the yarn guide needle and at least one second cavity capable of containing the movement of the baffle plate.

6. A jacquard comb as claimed in claim 4, wherein: and a part of the third blocking part is connected with a part of the second blocking part into a whole, a part of the third blocking part is connected with the base into a whole, and the base, the guide comb tooth body, the first blocking part, the second blocking part and the third blocking part are integrally molded and cast to form a whole, so that the base, the second blocking part and the third blocking part are integrally molded and cast to form a whole with a step appearance.

7. A jacquard comb as claimed in claim 4, wherein: the space between the second station and the third station is configured as a first groove, the first groove is used for accommodating one part of the yarn guiding needle, the width of the first groove is one needle pitch, the space between the first station and the third station is configured as a second groove, the second groove is used for accommodating the other part of the baffle, and the width of the second groove is two needle pitches.

8. A jacquard comb as claimed in claim 2, wherein: the moment of the limiting component is larger than that of the piezoelectric jacquard element.

9. A jacquard comb according to claims 1-8, wherein: when the initial movement position of the yarn guide needle is at the third station, the needle position selector pushes the yarn guide needle to move from the third station to the second station.

10. A needle selecting method of a jacquard comb is characterized in that: the jacquard comb comprises a piezoelectric jacquard element with a yarn guide needle and a needle position selector with a limiting component, wherein the piezoelectric jacquard element drives the yarn guide needle to switch positions among a first station, a second station and a third station respectively, the distance between the first station and the third station is two needle pitches, the distance between the third station and the second station is one needle pitch, the first station is the first needle position of the yarn guide needle, the third station is the tail needle position of the jacquard needle, the second station is arranged in the middle position between the first station and the third station, the limiting component is abutted to the corresponding part of the yarn guide needle when the yarn guide needle stops swinging at the third station, and the limiting component is used for blocking the yarn guide needle when the yarn guide needle stops swinging at the second station, and is configured to apply a pushing force to the yarn guide needle so that the yarn guide needle stops swinging at the second station.