Jacquard device

Abstract

A jacquard device comprises a limiting groove, a piezoelectric jacquard element provided with a jacquard needle and a second piezoelectric ceramic element provided with a blocking piece, and the torque of the second piezoelectric ceramic element is larger than that of the piezoelectric jacquard element. According to the utility model, the baffle plates and the jacquard needles are arranged in the limiting grooves, and the corresponding second piezoelectric ceramic elements drive the corresponding baffle plates to swing left and right in the limiting grooves, so that the position of each baffle plate can be independently controlled and is not influenced by other second piezoelectric ceramic elements; on the other hand, one part of the baffle is used for pushing the corresponding jacquard needle to move into the second station from the third station, so that the jacquard needle is always kept at the position on one side of the baffle in the position switching process of the second station and the third station, the condition of needle deflection of the three-station jacquard device is prevented, and the effect of achieving two purposes at a time is achieved.

Description

Technical Field

[0001] The utility model relates to the field of warp knitting machines, in particular to a jacquard device. Background Art

[0002] Conventional Jacquard devices can only achieve two working positions, which is determined by the structure and working principle of the Jacquard device. Due to the characteristics of conventional piezoelectric ceramics, the needle position of a conventional Jacquard device can only swing between two adjacent needle positions, with two left and right working positions, so it can also be called a two-position Jacquard. The current Jacquards are all two-position Jacquards.

[0003] In order to provide more patterns, the jacquard device needs to add at least one station on the basis of the original double station. When one station is added (middle position), the number of patterns that can be woven by the jacquard device can be doubled.

[0004] At present, if a cantilever beam is used to drive a baffle, the baffle is installed in a baffle groove, the baffle is 90° to the jacquard needle, and is intermittently inserted vertically into the second station up and down to achieve the effect of blocking the jacquard needle in the second station. Specifically, after the jacquard needle pushes the baffle, the baffle is blocked by the baffle groove, so that the baffle blocks the jacquard needle, so that the jacar needle stops at the second station. However, there are still the following shortcomings in actual use: during the left and right swinging process, the jacquard needle needs to push the left side of the baffle respectively, and then swing from left to right (from the first station to the second station), or push the right side of the baffle and then swing from right to left (from the third station to the second station). During the conversion process of the three stations, the jacquard needle sometimes pushes the left side of the baffle, and sometimes pushes the right side of the baffle, which makes it easy for the needle to deviate during use. Utility Model Content

[0005] The utility model provides a jacquard jacquard device, the main purpose of which is to overcome the defect that the jacquard needle positioning effect at the second station is not good in the existing three-station jacquard jacquard device.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A jacquard device, comprising at least one base, a plurality of limit grooves arranged on the front of the base, at least one first actuator arranged on the upper surface of the base, and at least one second actuator, wherein the first actuator has a plurality of piezoelectric jacquard elements that can swing independently and a plurality of jacquard needles arranged on the corresponding piezoelectric jacquard elements, and at least a portion of the jacquard needles swings left and right in the corresponding limit grooves, and the second actuator has a plurality of second piezoelectric ceramic elements arranged on the lower surface of the base and a plurality of baffles respectively arranged on the front of the corresponding second piezoelectric ceramic elements, each of the second piezoelectric ceramic elements can respectively drive the corresponding baffle to swing left and right, and the torque of the second piezoelectric ceramic element is greater than the torque of the piezoelectric jacquard element, so that a portion of the baffle is used to push the corresponding jacquard needle to move from a third station to a second station.

[0008] Compared with the prior art, the beneficial effects produced by the utility model are:

[0009] The utility model has a simple structure and strong practicality. By arranging the baffle and the jacquard needle in the limit groove, the corresponding second piezoelectric ceramic element drives the corresponding baffle to swing left and right in the limit groove, so that the position of each baffle can be independently controlled without being affected by other second piezoelectric ceramic elements. On the other hand, a part of the baffle is used to push the corresponding jacquard needle to move from the third station to the second station, so that the jacquard needle is always kept on one side of the baffle during the position switching process between the second station and the third station, thereby preventing the jacquard jacquard device of the three stations from having a deflected needle, thereby achieving the effect of killing two birds with one stone. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] Figure 2 It is a schematic diagram of the structure of the limit slot.

[0012] Figure 3 for Figure 2 Schematic diagram of the structure of part A.

[0013] Figure 4 It is a structural diagram of embodiment 2. DETAILED DESCRIPTION

[0014] The specific implementation of the present utility model is described below with reference to the accompanying drawings.

[0015] Embodiment 1, refer to Figure 1 , Figure 2 and Figure 3A jacquard device is used in a warp knitting machine, which can be a Raschel warp knitting machine. The jacquard device includes at least one base 10, a plurality of limit grooves 12 arranged on the front of the base 10, at least one first actuator 13 arranged on the upper surface of the base 10, at least one second actuator 14 arranged on the lower surface of the base 10, a plurality of slots 15 arranged on the front of the base 10, at least one first power supply device 200, at least one first fixing portion 16 arranged on the upper surface of the base 10, and at least one second fixing portion 17 arranged on the lower surface of the base 10. The width of the slot 15 is one stitch length. The tail of the base 10 can be installed on the guide rod of the Raschel warp knitting machine through a connector.

[0016] Reference Figure 1 , Figure 2 and Figure 3 The first actuator 13 has a plurality of piezoelectric jacquard elements 20 that can swing independently and a plurality of jacquard needles 21 disposed on the corresponding piezoelectric jacquard elements 20 , and at least a portion of the jacquard needles 21 swings left and right in the corresponding limiting grooves 12 .

[0017] Reference Figure 1 , Figure 2 and Figure 3 The second actuator 14 includes a plurality of second piezoelectric ceramic elements 22 arranged on the lower surface of the base 10 and a plurality of baffles 30 respectively arranged on the front of the corresponding second piezoelectric ceramic elements 22 .

[0018] Reference Figure 1 , Figure 2 and Figure 3 Each second piezoelectric ceramic element 22 can drive the corresponding baffle 30 to swing left and right, and a part of the baffle 30 extends into the corresponding limiting groove 12.

[0019] Reference Figure 1 , Figure 2 and Figure 3 The torque of the second piezoelectric ceramic element 22 is greater than the torque of the piezoelectric jacquard element 20 , and a portion of the baffle 30 is used to push the corresponding jacquard needle 21 to move from the third station to the second station.

[0020] Reference Figure 1 , Figure 2 and Figure 3 The torque of the second piezoelectric ceramic element 22 is greater than the torque of the piezoelectric jacquard element 20 , so that when the jacquard needle 21 stops swinging at the second station, a part of the baffle 30 is used to block the jacquard needle 21 .

[0021] Reference Figure 1 , Figure 2 and Figure 3By setting the baffle 30 and the jacquard needle 21 in the limiting groove 12, the corresponding second piezoelectric ceramic element 22 drives the corresponding baffle 30 to swing left and right in the limiting groove 12, so that the position of each baffle 30 can be independently controlled without being affected by other second piezoelectric ceramic elements 22. On the other hand, a part of the baffle 30 is used to push the corresponding jacquard needle 21 to move from the third station to the second station, so that the jacquard needle 21 always remains on one side of the baffle 30 during the position switching process between the second station and the third station, thereby preventing the jacquard jacquard device of the three stations from deviating from the needle, thereby achieving the effect of killing two birds with one stone.

[0022] Reference Figure 1 , Figure 2 and Figure 3 By arranging the first actuator 13 having the piezoelectric jacquard element 20 on the upper surface of the base 10 and the second piezoelectric ceramic element 22 on the lower surface of the base 10, on the one hand, without affecting the installation of the first actuator 13, the second actuator 14 is installed using the lower surface of the base 10, so that the swings between the piezoelectric jacquard element 20 and the second piezoelectric ceramic element 22 are independent and complementary, thereby effectively maintaining the stability of the piezoelectric jacquard element 20 and the second piezoelectric ceramic element 22 during long-term swinging. On the other hand, by arranging the second piezoelectric ceramic element 22 on the lower surface of the base 10, a part of the baffle 30 is better extended into the limiting groove 12, achieving the effect of killing two birds with one stone.

[0023] Reference Figure 1 , Figure 2 and Figure 3 Each jacquard needle 21 is adaptively provided with a corresponding limiting groove 12 and a corresponding baffle 30, wherein the corresponding limiting groove 12 is located on the movement space 31 on one side of the jacquard needle 21, and a part of the corresponding baffle 30 is located on the movement space 31 on the other side of the jacquard needle 21.

[0024] Reference Figure 1 , Figure 2 and Figure 3 On the one hand, the limit groove 12 is arranged on the movement space 31 on one side of the jacar needle 21, so that the limit groove 12 prevents the jacar needle 21 from stopping swinging at the first needle position. On the other hand, a part of the corresponding baffle 30 is located on the movement space 31 on the other side of the jacar needle 21, so that the baffle 30 switches its position on the other side of the jacar needle 21, thereby increasing the number of workstations on the other side of the jacar needle 21.

[0025] Reference Figure 1 and Figure 2 A portion of the piezoelectric jacquard element 20 is mounted on the first fixing portion 16 , and a portion of the second piezoelectric ceramic element 22 is mounted on the second fixing portion 17 .

[0026] Reference Figure 3 One side of the slot 15 is connected to a corresponding limiting slot 12 as a whole, and the other side of the slot 15 extends to the middle position of two adjacent limiting slots 12.

[0027] Reference Figure 1 , Figure 2 and Figure 3 Each slot 15 extends from the upper surface of the base 10 to the lower surface of the base 10 , and a corresponding limit slot 12 is provided on the left and right sides of each slot 15 . The baffle 30 extends from the bottom of the slot 15 into the slot 15 , so that at least a portion of the baffle 30 extends between the two limit slots 12 .

[0028] Reference Figure 1 , Figure 2 and Figure 3 By setting the slot 15, on the one hand, the slot 15 can facilitate the baffle 30 to extend between two adjacent limit slots 12 and swing in the slot 15. On the other hand, the width of the slot 15 can be used to limit the moving distance of the baffle 30, thereby accurately and effectively limiting the baffle 30 from switching back and forth between different preset workstations, achieving a dual purpose.

[0029] Reference Figure 1 and Figure 3 The second piezoelectric ceramic element 22 includes at least one deformable second substrate, a second piezoelectric ceramic sheet 401 wrapped on both sides of the substrate, and two second power terminals 214 arranged on both sides of the tail of the second substrate. At least a part of the baffle 30 is arranged on the front of the second substrate. The second power terminal 214 is electrically connected to the second piezoelectric ceramic sheet 401. When the second power terminal 214 is energized, the second piezoelectric ceramic sheet 401 drives the baffle 30 to swing together in the two slots 15.

[0030] Reference Figure 1 The first power supply device 200 has at least one first connector 201, at least one first cable 202 for supplying power to the first connector 201, at least one second connector 211 and at least one second cable 212 for supplying power to the second connector 211. The power supply end 203 of the first connector 201 can be pluggably mounted on the first power connection end 204 of the piezoelectric jacquard element 20 to achieve electrical connection, and the power supply end 213 of the second connector 211 can be pluggably mounted on the second power connection end 214 of the second piezoelectric ceramic element 22 to achieve electrical connection.

[0031] Reference Figure 1The limiting groove 12, the base 10, the first fixing part 16 and the second fixing part 17 are integrally formed by casting to form a whole. The limiting groove 12, the base 10, the first fixing part 16 and the second fixing part 17 can be made of magnesium alloy material, aluminum alloy material or magnesium-aluminum alloy material.

[0032] Reference Figure 1 By setting the limiting groove 12, the base 10, the first fixing part 16 and the second fixing part 17, they are integrally molded and cast to form a whole, so that mold casting can be used, which effectively improves production efficiency, reduces production costs, and reduces the dimensional errors of each component within a controllable range during mass production.

[0033] Example 2, refer to Figure 4 The difference between the second embodiment and the first embodiment is that: it also includes at least one jacquard drive device 300, the jacquard drive device 300 includes at least one first driving circuit board 301 with a first driving circuit, a plurality of first power connection ports 302 arranged on the first driving circuit board 301, at least one second driving circuit board 322 with a second driving circuit, and a plurality of second power connection ports 324 arranged on the second driving circuit board 322, the output end of the first driving circuit board 301 is electrically connected to the first power connection port 204 of the piezoelectric jacquard element 20 in a coupled manner, the first power connection port 302 is used to transmit an electrical signal, the output end of the second driving circuit board 322 is electrically connected to the second power connection port 214 of the second piezoelectric ceramic element 22 in a coupled manner, and the second power connection port 324 is used to transmit an electrical signal.

[0034] Reference Figure 4 The first driving circuit board 301 includes a first printed circuit board 311 and a first driving circuit arranged on the first printed circuit board 311. The first driving circuit is used to drive the first piezoelectric ceramic piece of the piezoelectric jacquard element to swing. The first power connection port 302 can be respectively arranged on the left and right sides of the first printed circuit board 311.

[0035] Reference Figure 4 The second driving circuit board 322 includes a second printed circuit board 323 and a second driving circuit disposed on the second printed circuit board 323. The second driving circuit is used to drive the second piezoelectric ceramic piece 401 of the piezoelectric jacquard element to swing. The second power connection ports 324 can be disposed on the left and right sides of the second printed circuit board 323, respectively.

[0036] Reference Figure 4 In this embodiment, a first connector 201 can be provided on the front of the first printed circuit board 311, so that the output end of the first driving circuit board 301 and the first power terminal 204 of the piezoelectric jacquard element 20 are electrically connected in a plug-in manner through the first connector 201.

[0037] Reference Figure 4 In this embodiment, a second connector 211 can be provided on the front of the second printed circuit board 323, so that the output end of the second driving circuit board 322 and the second power connection end 214 of the second piezoelectric ceramic element 22 are electrically connected in a plug-in manner through the second connector 211.

[0038] The circuit structure of the first driving circuit and the second driving circuit can refer to the driving circuit structure disclosed in the Chinese utility model patent (application number: 202123378011.8, publication number: CN218124570U) or the Chinese utility model patent (application number: 202121926084.3, publication number: CN217486404U), or other driving circuit structures in the field for driving piezoelectric ceramic pieces to swing may also be applicable.

[0039] The other structures are similar to those of the first embodiment and will not be described in detail here.

[0040] Example 3, refer to Figure 1 , Figure 2 and Figure 3 The difference between the third embodiment and the first embodiment is that the piezoelectric jacquard element 20 includes a first substrate, a first piezoelectric ceramic sheet 400 wrapped on the first substrate, and two first power terminals 204 arranged on both sides of the tail of the second substrate, the first power terminals are electrically connected to the first piezoelectric ceramic sheet 400, the jacquard needle 21 includes a comb holding end 431, a yarn guide needle 430 arranged on the front of the comb holding end 431, and the tail of the comb holding end 431 is arranged on the front end of the first piezoelectric ceramic sheet 400.

[0041] Reference Figure 1 , Figure 2 and Figure 3 By setting the torque of the second piezoelectric ceramic sheet 401 to be greater than the torque of the first piezoelectric ceramic sheet 400, the baffle 30 can effectively block the impact of the jacquard needle 21 on the baffle 30, so that the jacquard needle 21 can be intercepted by the baffle 30 at the second station 412 or the third station 413, thereby improving the stability and accuracy of the three-station switching process.

[0042] Reference Figure 1 A portion of the first piezoelectric ceramic sheet 400 is detachably mounted on the first fixing portion 16 , and a portion of the second piezoelectric ceramic sheet 401 is detachably mounted on the second fixing portion 17 .

[0043] Reference Figure 3A portion of the limiting groove 12 is used to stop a portion of the yarn guide needle 430 from stopping swinging at the first station 411, another portion of the limiting groove 12 is used to stop a portion of the corresponding baffle 30 from stopping swinging at the third station 413, and another portion of the corresponding baffle 30 is used to stop another portion of the yarn guide needle 430 from stopping swinging at the second station 412.

[0044] Reference Figure 3 The baffle 30 is disposed on the side of the jacquard needle 21 facing the third station 413 , the first needle position of the jacquard needle 21 is the first station 411 , and the distance between the first station 411 and the third station 413 is two needle pitches.

[0045] Reference Figure 1 , Figure 2 and Figure 3 The limiting groove 12 includes at least one tooth groove 440 arranged on the front part of the base 10, at least one first limiting portion 441 for stopping the guide needle 430 from stopping swinging at the first station 411, at least one second limiting portion 442 for stopping the baffle 30 from stopping swinging at the second station 412, at least one third limiting portion 443 for stopping the baffle 30 from stopping swinging at the third station 413, and at least one first cavity 444 for the guide needle 430 to move. The slot 15 is arranged between the second limiting portion 442 and the third limiting portion 443, and the slot 15 is connected to the first cavity 444.

[0046] Reference Figure 1 , Figure 2 and Figure 3 The first limiting portion 441 , the second limiting portion 442 and the third limiting portion 443 are sequentially arranged in the tooth groove 440 from left to right, and the second piezoelectric ceramic element 22 drives the blocking piece 30 to swing back and forth between the second limiting portion 442 and the third limiting portion 443 .

[0047] Reference Figure 3 By setting the second limiting portion 442 and the third limiting portion 443, on the one hand, the baffle 30 is positioned during the switching process between the second station 412 and the third station 413, so that the switching of each baffle 30 between the second station 412 and the third station 413 is independent of each other and is not affected by other limiting portions or the yarn guide needle 430. On the other hand, in the process of switching the position of the baffle 30, the normal jacquard yarn guiding work of the yarn guide needle 430 is not affected, thereby achieving the effect of killing two birds with one stone.

[0048] Reference Figure 3 The first cavity 444 is disposed on the upper side of the slot 15 , the first cavity 444 is connected to the slot 15 , the upper portion of the baffle 30 is swung left and right in the first cavity 444 , and the lower portion of the baffle 30 is disposed in the slot 15 to swing left and right.

[0049] Reference Figure 3 The first limiting portion 441 is arranged on the inner wall of one side of the tooth groove 440, and the third limiting portion 443 is arranged on the inner wall of the other side of the tooth groove 440. The upper part of the first limiting portion 441 and the third limiting portion 443 surrounds the first cavity 444, and the lower part of the second limiting portion 442 and the third limiting portion 443 surrounds the slot 15. A part of the second limiting portion 442 is arranged on the lower part of the tooth groove 440, and another part of the second limiting portion 442 extends to the middle position of the tooth groove 440. Another part of the second limiting portion 442 is used to block the blocking piece 30, so that the blocking piece 30 stops swinging at the middle position of the tooth groove 440.

[0050] Reference Figure 3 By setting the first cavity 444 and the slot 15, on the one hand, the baffle 30 is only set to swing in the slot 15, so that the baffle 30 is only used to control the switching of the second station 412 and the third station 413, and does not affect the first station 411, thereby improving the overall stability. On the other hand, the left and right sides of the slot 15 are the second limiting part 442 and the third limiting part 443, respectively, so as to accurately and effectively locate the specific positions of the second station 412 and the third station 413, improve the accuracy of the baffle 30 in the station switching process, reduce the error, and achieve the effect of killing two birds with one stone.

[0051] Reference Figure 3 , the distance between the first station 411 and the third station 413 is two stitches, the distance between the second station 412 and the third station 413 is one stitch, and the second station 412 is located in the middle between the first station 411 and the third station 413. In this embodiment, the distance between the first limiting portion 441 and the second limiting portion 442 is one stitch, and when the baffle 30 is blocked by the third limiting portion 443 and stops swinging, the distance between the second limiting portion 442 and the baffle 30 parked on one side of the third limiting portion 443 is one stitch.

[0052] Reference Figure 3 When the baffle 30 is blocked by the second limiting portion 442, the baffle 30 stops swinging at the second station 412. At this time, the baffle 30 is used to stop the yarn guide needle 430 from stopping swinging at the second station 412. When the baffle 30 is blocked by the third limiting portion 443, the baffle 30 stops swinging at the third station 413. At this time, the baffle 30 is used to stop the yarn guide needle 430 from stopping swinging at the third station 413.

[0053] Reference Figure 1 and Figure 3The torque of the second piezoelectric ceramic element 22 is greater than the torque of the piezoelectric jacquard element 20, so that the thrust provided by the baffle 30 to the guide needle 430 is greater than the pressure generated by the guide needle 430 on the baffle 30, so that when the baffle 30 swings from the third station 413 toward the second station 412, the baffle 30 can push the guide needle 430 to move from the third station 413 toward the second station 412, and finally stop at the second station 412, because the baffle 30 is blocked by the second limit part 442 and stops. The guide needle 430 stops at the second station 412 because the torque is less than the torque of the baffle 30 and is pushed to the second station 412.

[0054] In this embodiment, the jacquard pattern device realizes the working principle of three stations:

[0055] The swing amplitude of the double-station Jacquard device is one groove needle position, while the three-station Jacquard device has an additional station state, so its swing amplitude is two groove needle positions (two needle lengths), that is, in the absence of lateral shift, its swing amplitude is two groove needle positions (two needle lengths).

[0056] Reference Figure 3 The three-station jacquard device means that the yarn guide needle 430, in addition to swinging left and right, can also accurately stop at the middle position (i.e., the second station 412).

[0057] Reference Figure 1 , Figure 2 and Figure 3 The double-station jacquard device can only swing left and right, and its docking position is fixed and accurate. The reason why it is fixed and accurate is that the limit slot 12 of the base 10 is toothed according to the calculated data, and the yarn guide needle 430 swings left or right and will dock on the tooth wall. Since the spacing of the tooth walls is calculated, as long as the spacing of the tooth walls is correct, the needle position is correct. The piezoelectric ceramic sheet will generate a swinging torque after charging. The complete piezoelectric ceramic sheet that can swing left and right is composed of two single piezoelectric ceramic sheets bonded to a glass fiber sheet. Each single piezoelectric ceramic sheet is responsible for a swinging direction, that is, one of them is charged and the other is discharged, which will generate the correct swinging torque, and the piezoelectric ceramic sheet will swing left or right. This is the basic swinging principle of the piezoelectric ceramic sheet.

[0058] Reference Figure 1 , Figure 2 and Figure 3 As long as a sufficiently large torque is generated, the yarn guide needle 430, driven by the first piezoelectric ceramic sheet 400, will be tightly pressed against the wall surface on one side of the limiting groove 12, and will not be deflected by the yarn, and can accurately pass through the center of the two groove needles.

[0059] Reference Figure 3, wherein the width of the slot 15 is the width of a stitch length, the width of the first cavity 444 is the width of a stitch length, and there is a second limiting portion 442 between the slot 15 and the first cavity 444, and the shape of the second limiting portion 442 can be a step shape.

[0060] Reference Figure 1 , Figure 2 and Figure 3 The first piezoelectric ceramic piece 400 drives the yarn guide needle 430 to swing in the first cavity 444. The position of the yarn guide needle 430 is higher than the second limiting portion 442, so it is not affected by the second limiting portion 442. Since the width of the first cavity 444 is the width of two needle distances, the first piezoelectric ceramic piece 400 drives the yarn guide needle 430 to swing two needle distances in the first cavity 444.

[0061] Reference Figure 1 , Figure 2 and Figure 3 After the second piezoelectric ceramic sheet 401 is set, when the baffle 30 at the front end of the second piezoelectric ceramic sheet 401 is in operation, since the bottom of the baffle 30 is lower than the second limiting portion 442 and falls into the slot 15, the baffle 30 will be blocked by the second limiting portion 442 and the third limiting portion 443 when swinging, so the upper part of the baffle 30 is limited to swinging left and right in the first cavity 444, and since the first cavity 444 is designed to have a width of two needle pitches, the baffle 30 can swing left and right in the first cavity 444 by a position of one needle pitch due to the obstruction of the second limiting portion 442. Since the second limiting portion 442 will limit the baffle 30, the baffle 30 can only swing between the second limiting portion 442 and the third limiting portion 443.

[0062] Reference Figure 1 , Figure 2 and Figure 3 The second piezoelectric ceramic sheet 401 is designed to be longer in order to increase the torque of the second piezoelectric ceramic sheet 401. Due to the need to achieve three working positions, the torque of the second piezoelectric ceramic sheet 401 is greater than that of the lower layer.

[0063] Reference Figure 1 , Figure 2 and Figure 3 The following describes how the three-station jacquard device works and switches between the three stations, respectively, from left to middle and right:

[0064] Reference Figure 1 , Figure 2 and Figure 3, when the yarn guide needle 430 is on the left (first station 411): the driving circuit controls the first piezoelectric ceramic plate 400 to swing left, and the needle position is at the leftmost position (first station 411). At this time, the baffle 30 can be at any position, which has no effect on the current leftmost needle position (first station 411).

[0065] Reference Figure 1 , Figure 2 and Figure 3 , when the yarn guide needle 430 is in the middle (the second station 412): the driving circuit controls the second piezoelectric ceramic piece 401 to make the baffle 30 swing to the left, and at the same time, controls the yarn guide needle 430 to swing to the right, at this time, the baffle 30 will be blocked by the second limit part 442. Since the torque of the baffle 30 is greater than that of the yarn guide needle 430, the yarn guide needle 430 will press tightly on the baffle 30 at this time, but will not push the baffle 30 away to cause the needle to deviate, so the final result is that the baffle 30 stops after being blocked by the second limit part 442, and the yarn guide needle 430 presses on the baffle 30. Since the position of the baffle 30 when it stops on one side of the second limit part 442 is just the position of a stitch length (i.e. the position of the second station 412), it is equivalent to the yarn guide needle 430 being in the middle position (i.e. the position of the second station 412) at this time.

[0066] Reference Figure 1 , Figure 2 and Figure 3 , when the yarn guide needle 430 is on the right side (the third station 413): the driving circuit controls the first piezoelectric ceramic sheet 400 to swing left so that the yarn guide needle 430 swings to the right, and at the same time controls the baffle 30 in front of the second piezoelectric ceramic sheet 401 to swing to the right, and the yarn guide needle 430 is in the right position, and the yarn guide needle 430 is pressed on the baffle 30. Because the width is pre-set during the initial milling process of the limit groove 12, when the thickness of the baffle 30 is included, the position where the yarn guide needle 430 presses on the baffle 30 is exactly two stitch lengths, so at this time the yarn guide needle 430 will be in the rightmost position (the third station 413).

[0067] The other structures are similar to those of the first embodiment and will not be described in detail here.

[0068] The above is only a specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. A jacquard device, comprising at least one base, a plurality of limit grooves arranged on the front of the base, and at least one first actuator arranged on the upper surface of the base, wherein the first actuator has a plurality of piezoelectric jacquard elements that can swing independently and a plurality of jacquard needles arranged on the corresponding piezoelectric jacquard elements, and at least a part of the jacquard needles swings left and right in the corresponding limit grooves, characterized in that: It also includes at least one second actuator, which has a plurality of second piezoelectric ceramic elements arranged on the lower surface of the base and a plurality of baffles respectively arranged on the front of the corresponding second piezoelectric ceramic elements, each of the second piezoelectric ceramic elements can drive the corresponding baffle to swing left and right, and the torque of the second piezoelectric ceramic element is greater than the torque of the piezoelectric jacquard element, so that a part of the baffle is used to push the corresponding jacquard needle to move from the third station to the second station.

2. A jacquard device as claimed in claim 1, characterized in that: It also includes a plurality of slots arranged on the front portion of the base, each slot extending from the upper surface of the base to the lower surface of the base, and each slot is provided with a corresponding limiting slot on the left and right sides, and the baffle extends from the bottom of the slot into the slot, so that at least a portion of the baffle extends between the two limiting slots.

3. A jacquard device as claimed in claim 2, characterized in that: One side of the slot is connected to a corresponding limiting slot as a whole, and the other side of the slot extends to the middle position of two adjacent limiting slots.

4. A jacquard device as claimed in claim 2, characterized in that: The second piezoelectric ceramic element includes at least one deformable substrate, a second piezoelectric ceramic sheet wrapped on both sides of the substrate, and two power terminals arranged on both sides of the tail of the substrate. At least a part of the baffle is arranged on the front of the substrate. The power terminals are electrically connected to the second piezoelectric ceramic sheet. When the power terminals are energized, the second piezoelectric ceramic sheet drives the baffle to swing together in the two slots.

5. A jacquard device as claimed in any one of claims 2 to 4, characterized in that: The width of the slot is one stitch length.

6. A jacquard device as claimed in any one of claims 2 to 4, characterized in that: The baffle is arranged on a side of the jacquard needle facing the third station, the first needle position of the jacquard needle is the first station, and the distance between the first station and the third station is two needle distances.

7. A jacquard device as claimed in any one of claims 1 to 4, characterized in that: Each of the jacquard needles is adaptively provided with a corresponding limiting groove and a corresponding baffle, wherein the corresponding limiting groove is located on the movement space on one side of the jacquard needle, and a part of the corresponding baffle is located on the movement space on the other side of the jacquard needle.

8. A jacquard device as claimed in any one of claims 1 to 4, characterized in that: It also includes at least one first fixing portion arranged on the upper surface of the base and at least one second fixing portion arranged on the lower surface of the base, a part of the piezoelectric jacquard element is mounted on the first fixing portion, and a part of the second piezoelectric ceramic element is mounted on the second fixing portion.

9. A jacquard device as claimed in any one of claims 1 to 4, characterized in that: It also includes at least one first power supply device, which has at least one first connector, at least one first cable for supplying power to the first connector, at least one second connector, and at least one second cable for supplying power to the second connector. The power supply end of the first connector can be pluggably mounted on the power supply end of the piezoelectric jacquard element to achieve electrical connection, and the power supply end of the second connector can be pluggably mounted on the power supply end of the second piezoelectric ceramic element to achieve electrical connection.

10. A jacquard pattern device as claimed in any one of claims 1 to 4, characterized in that: It also includes at least one Jacquard drive device, which includes at least one first drive circuit board with a drive circuit, a plurality of first power ports arranged on the first drive circuit board, at least one second drive circuit board with a drive circuit, and a plurality of second power ports arranged on the second drive circuit board, the output end of the first drive circuit board is electrically connected to the power end of the piezoelectric Jacquard element in a coupled manner, the first power port is used to transmit an electrical signal, the output end of the second drive circuit board is electrically connected to the power end of the second piezoelectric ceramic element in a coupled manner, and the second power port is used to transmit an electrical signal.

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