A multifunctional piezoelectric jacquard device and textile machinery

Abstract

A multifunctional piezoelectric jacquard device and textile machinery are disclosed. The textile machinery includes a piezoelectric jacquard device comprising at least one base, multiple piezoelectric jacquard elements arranged on the base, at least one first station, at least one second station, at least one third station, and at least one fourth station. Each piezoelectric jacquard element has at least one guide needle for guiding the jacquard yarn. In this invention, by setting the piezoelectric jacquard device to have four stations, various weave effects such as thick weave, thin weave, and mesh weave can be used when the piezoelectric jacquard device is used to make fancy base patterns. However, the mesh weave is the main one, and the weave used is not too complex, and the combined effect is not too layered, so as not to overshadow the main pattern effect. When the piezoelectric jacquard device is used to make the main pattern, the combination of weaves is richer and not limited to mesh weave.

Description

Technical Field

[0001] This invention relates to the field of textile machinery, and in particular to a multifunctional piezoelectric jacquard device and textile machinery. Background Technology

[0002] Currently, most existing piezoelectric Jacquard devices only have two stations. The swing amplitude of a two-station piezoelectric Jacquard device is one slot needle position, while the swing amplitude of a three-station piezoelectric Jacquard device is two slot needle positions (three needle distances) due to the addition of a station. That is, without lateral movement, its swing amplitude is two slot needle positions (three needle distances). The pattern effect of a two-station piezoelectric Jacquard device is simple.

[0003] Adding one station makes it a three-station piezoelectric Jacquard device, which can multiply the number of patterns. Adding two stations makes it a four-station piezoelectric Jacquard device, which can multiply the number of patterns again.

[0004] Therefore, how to provide a four-station piezoelectric jacquard device is a problem that urgently needs to be solved by those skilled in the art.

[0005] Specifically, in the three-station and four-station configurations, each station has a single stitch length. The three-station operates on two stitch positions and has three states, while the four-station operates on three stitch positions and has four states. From another perspective, the additional baffle in the four-station configuration can be seen as a fixed baffle in the three-station configuration, widened by one station and controlled by the added baffle, thus adding one more stitch position. The number of states in the four-station configuration equals the maximum number of stitches that can be moved plus one. Summary of the Invention

[0006] This invention provides a multifunctional piezoelectric Jacquard device and textile machinery, the main purpose of which is to overcome the shortcomings of existing piezoelectric Jacquard devices that only have two working stations.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A multifunctional piezoelectric Jacquard device and textile machinery are disclosed. The textile machinery has at least one piezoelectric Jacquard device, which includes at least one base, a plurality of piezoelectric Jacquard elements arranged on the base, at least one first station, at least one second station, at least one third station, and at least one fourth station. Each piezoelectric Jacquard element has at least one yarn guide needle for guiding the yarn in jacquard weaving. The first station is the first needle position of the yarn guide needle, the fourth station is the tail needle position of the yarn guide needle, and the second station is located between the first station and the third station.

[0009] Furthermore, it also includes a first needle position limiter and at least one second needle position limiter, the first needle position limiter being used to limit the yarn guide needle from oscillating between the first station and the second station, and the second needle position limiter being used to limit the yarn guide needle from oscillating between the third station and the fourth station.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] This invention features a simple structure and strong practicality. By setting up a piezoelectric jacquard device with four workstations, it can utilize various weave effects such as thick weave, thin weave, and mesh weave when creating patterned base nets. However, it primarily uses mesh weave, and the weaves used are not overly complex, nor are the combined effects too layered, so as not to overshadow the main pattern. When creating the main pattern, the piezoelectric jacquard device offers a richer combination of weaves, not limited to mesh weave or simple thick and thin weaves. Instead, it fully utilizes the various effects that the piezoelectric jacquard device can create, combining them to construct multi-layered, multi-style, and multi-effect main patterns.

[0012] In this invention, by setting a first needle position limiter and a second needle position limiter, the first needle position limiter is used to limit the yarn guide needle to stop swinging at the second work position, and the second needle position limiter is used to limit the yarn guide needle to stop swinging at the third work position, so that the piezoelectric Jacquard device has two more work positions on the basis of the original two work positions, so that the piezoelectric Jacquard device has a first work position, a second work position, a third work position and a fourth work position respectively, thereby increasing the number of patterns of the piezoelectric Jacquard device. Attached Figure Description

[0013] Figure 1 It is a structural schematic diagram of the present invention.

[0014] Figure 2 Schematic diagram of the first pin position limiter

[0015] Figure 3 This is a schematic diagram of the second pin position limiter.

[0016] Figure 4 for Figure 2 A schematic diagram of the structure of part A.

[0017] Figure 5 for Figure 3 A schematic diagram of the structure of part B.

[0018] Figure 6 This is a schematic diagram of the structure of Example 2.

[0019] Figure 7 This is the circuit diagram of the drive circuit. Detailed Implementation

[0020] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0021] Example 1, refer to Figure 1 , Figure 4 and Figure 5 A multifunctional piezoelectric jacquard device and textile machinery are disclosed. The textile machinery includes at least one piezoelectric jacquard device, and the textile machinery may specifically be a warp knitting machine. The piezoelectric jacquard device includes at least one base 1, a plurality of piezoelectric jacquard elements 2 arranged on the base 1, at least one first station 6, at least one second station 7, at least one third station 8, at least one fourth station 9, a first needle position limiter 3, at least one second needle position limiter 4, and a plurality of comb teeth 5 arranged on the front part of the base 1. The first station 6, the second station 7, the third station 8, and the fourth station 9 are respectively arranged between two adjacent comb teeth 5.

[0022] Reference Figure 1 , Figure 4 and Figure 5 Each piezoelectric Jacquard element 2 has at least one guide needle 10 for jacquard yarn guiding. The first station 6 is the first needle position of the guide needle 10, the fourth station 9 is the last needle position of the guide needle 10, the second station 7 is located between the first station 6 and the third station 8, and the third station 8 is located between the second station 7 and the fourth station 9. The first needle position limiter 3 is used to limit the guide needle 10 from oscillating between the first station 6 and the second station 7, and the second needle position limiter 4 is used to limit the guide needle 10 from oscillating between the third station 8 and the fourth station 9.

[0023] Reference Figure 4 and Figure 5 The distance between the first station 6 and the fourth station 9 is three stitch lengths; the distance between the first station 6 and the second station 7 is one stitch length; the distance between the second station 7 and the third station 8 is one stitch length; and the distance between the third station 8 and the fourth station 9 is one stitch length.

[0024] Reference Figure 1 , Figure 4 and Figure 5 When the torque of the corresponding first needle position limiter 3 is greater than the torque of the corresponding piezoelectric Jacquard element 2, the corresponding yarn guide needle 10 is pushed to the second station 7 by the corresponding first needle position limiter 3 and stops swinging. When the torque of the corresponding second needle position limiter 4 is greater than the torque of the corresponding piezoelectric Jacquard element 2, the corresponding yarn guide needle 10 is pushed to the third station 8 by the corresponding second needle position limiter 4 and stops swinging.

[0025] Reference Figure 1 , Figure 4 and Figure 5 The first needle position limiter 3 includes at least one first blocking member 13 disposed on one side of the corresponding guide needle 10, at least one first piezoelectric ceramic element 12, at least one first mounting part 14 disposed on the first piezoelectric ceramic element 12, the first blocking member 13 disposed on the front part of the first piezoelectric ceramic element 12, and a plurality of limiting blocks 15 arranged on the front part of the base 1.

[0026] Reference Figure 1 , Figure 4 and Figure 5 The second needle position limiter 4 includes at least one second blocking member 16 disposed on the other side of the corresponding guide needle 10, at least one second piezoelectric ceramic element 17, at least one second mounting part 18 disposed on the second piezoelectric ceramic element 17, and a plurality of limiting slots 20 arranged on the front of the base 1. The second blocking member 16 is disposed on the front of the second piezoelectric ceramic element 17.

[0027] Reference Figure 1 The first mounting part 14 is alternatively mounted on a part of the base 1, and the second mounting part 18 is alternatively mounted on another part of the base 1, such that the first pin position limiter 3 and the second pin position limiter 4 are arranged at intervals relative to each other.

[0028] Reference Figure 1 , Figure 4 and Figure 5 The first piezoelectric ceramic element 12 drives the first blocking element 13, causing the first blocking element 13 to swing between the first station 6 and the second station 7. The second piezoelectric ceramic element 17 drives the second blocking element 16, causing the second blocking element 16 to swing between the third station 8 and the fourth station 9.

[0029] Reference Figure 1 , Figure 4 and Figure 5 The first blocking member 13 is used to limit the displacement of a portion of the corresponding yarn guide needle 10 along the moving direction. The first blocking member 13 is arranged laterally and offset from the moving direction in the movement space of the yarn guide needle 10.

[0030] Reference Figure 1 , Figure 4 and Figure 5 The second blocking member 16 is used to restrict the displacement of another part of the corresponding yarn guide needle 10 along the moving direction. The second blocking member 16 is arranged laterally and offset from the moving direction in the movement space of the yarn guide needle 10.

[0031] Reference Figure 1 , Figure 4 and Figure 5The limiting slot 20 and the limiting block 15 are respectively set between two adjacent comb teeth 5. The limiting slot 20 is used to block the first blocking member 13, so that the first blocking member 13 swings between the first station 6 and the second station 7. The limiting block 15 is used to prevent the second blocking member 16 from swinging at the third station 8.

[0032] Reference Figure 1 , Figure 4 and Figure 5 The portion of the first blocking member 13 used to block the yarn guide needle 10 can be a first baffle 40, and the portion of the second blocking member 16 used to block the yarn guide needle 10 can be a second baffle 41.

[0033] Reference Figure 1 , Figure 4 and Figure 5 The base 1 and the comb teeth 5 can both be made of magnesium alloy, aluminum alloy, or magnesium-aluminum alloy, and the limiting block 15 can also be made of magnesium alloy, aluminum alloy, or magnesium-aluminum alloy. The base 1, the limiting block 15, the limiting slot 20, and the comb teeth 5 are integrally cast to form a whole.

[0034] Reference Figure 1 , Figure 4 and Figure 5 By setting a first needle position limiter 3 and a second needle position limiter 4, the first needle position limiter 3 is used to limit the yarn guide needle 10 to stop swinging at the second station 7, and the second needle position limiter 4 is used to limit the yarn guide needle 10 to stop swinging at the third station 8, so that the piezoelectric Jacquard device adds two more stations on the basis of the original two stations, so that the piezoelectric Jacquard device has a first station 6, a second station 7, a third station 8 and a fourth station 9 respectively, thereby increasing the number of patterns of the piezoelectric Jacquard device.

[0035] Reference Figure 1 , Figure 4 and Figure 5 By setting the piezoelectric jacquard device to have four stations, it can utilize various weave effects such as thick weave, thin weave, and mesh weave when creating patterned base patterns. Mesh weave can be the main element, and the weave used will not be too complex, nor will the combined effects have too many layers, so as not to overshadow the main pattern. When creating the main pattern, the piezoelectric jacquard device can create a richer combination of weaves, not limited to mesh weave or simple thick and thin weaves, but making full use of the various effects that the piezoelectric jacquard device can create, and using them in combination to construct multi-layered, multi-style, and multi-effect main patterns.

[0036] Example 2, refer to Figure 6The difference between this second embodiment and the first embodiment is that the first blocking member 13 is not limited to being limited by the limiting slot 20, and the second blocking member 16 is not limited to being limited by the limiting block 15. In this embodiment, by substitution, the limiting slot 20 is replaced with one used to limit the second blocking member 16, and the limiting block 15 is replaced with one used to limit the first blocking member 13.

[0037] Reference Figure 6 The limiting block 15 is used to prevent the first blocking member 13 from swinging at the second station 7. The limiting slot 20 is used to prevent the second blocking member 16 from swinging between the third station 8 and the fourth station 9.

[0038] Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0039] Example 3, referring to Figure 1 , Figure 2 and Figure 3 The difference between this third embodiment and the first embodiment is that the piezoelectric Jacquard element 2 includes at least one third piezoelectric ceramic element that can swing when energized and at least one comb-holding end 31 disposed on the front of the third piezoelectric ceramic element, with the yarn guide needle 10 disposed on the front of the comb-holding end 31. The third piezoelectric ceramic element includes at least one deformable third substrate, third piezoelectric ceramic sheets 30 wrapped around both sides of the third substrate, and two third electrical terminals 32 disposed on both sides of the tail of the third substrate. The third substrate can be a fiberglass board, and the third electrical terminals 32 are electrically connected to the third piezoelectric ceramic sheets 30. The third electrical terminals 32 can be conductive copper sheets.

[0040] Reference Figure 1 The first piezoelectric ceramic element 12 includes at least one deformable first substrate, first piezoelectric ceramic sheets 22 wrapped around both sides of the substrate, two first electrical terminals 23 disposed on both sides of the tail of a second substrate, and a first gripping portion 21 disposed on the front of the first substrate. A first blocking member 13 is disposed on the front of the first substrate. The first blocking member 13 can be a first baffle 40 disposed on the front of the first gripping portion 21. The first substrate can be a fiberglass board. The first electrical terminals 23 are electrically connected to the first piezoelectric ceramic sheets 22, and the first electrical terminals 23 can be conductive copper sheets.

[0041] Reference Figure 1The second piezoelectric ceramic element 17 includes at least one deformable second substrate, second piezoelectric ceramic sheets 24 wrapped around both sides of the substrate, two second electrical terminals 25 disposed on both sides of the tail of the second substrate, and a second gripping portion 26 disposed on the front of the second substrate. A second blocking member 16 is disposed on the front of the second substrate. The second blocking member 16 can be a second baffle 41 disposed on the front of the second gripping portion 26. The second substrate can be a fiberglass board. The second electrical terminals 25 are electrically connected to the second piezoelectric ceramic sheets 24. The second electrical terminals 25 can be conductive copper sheets.

[0042] Reference Figure 1 In this embodiment, to ensure that the torque of the first pin position limiter 3 is greater than the torque of the corresponding piezoelectric Jacquard element 2, the torque of the corresponding second pin position limiter 4 is greater than the torque of the corresponding piezoelectric Jacquard element 2. In one specific embodiment, the torques of the first piezoelectric ceramic sheet 22 and the second piezoelectric ceramic sheet 24 may be set to be greater than the torque of the third piezoelectric ceramic sheet 30, but this is not a limitation.

[0043] Reference Figure 1 , Figure 4 and Figure 5 The two comb teeth 5 surround each other to form a first cavity 45, which is the movement space for the yarn guide needle 10. The first station 6, the second station 7, the third station 8 and the fourth station 9 are all located in the first cavity 45. The first cavity 45 can be used to accommodate at least a part of the yarn guide needle 10, the first blocking member 13 and at least a part of the second blocking member 16 respectively.

[0044] Reference Figure 1 , Figure 4 and Figure 5 Specifically, a portion of the first blocking member 13 extends into the first cavity 45, and another portion of the first blocking member 13 is disposed within the limiting slot 20. The limiting block 15 and an adjacent comb tooth 5 surround each other to form a second cavity 43, which can be a first groove 44. A portion of the second blocking member 16 extends into the first cavity 45, and another portion of the second blocking member 16 extends into the second cavity 43. The other portion of the second blocking member 16 moves only within the second cavity 43. Specifically, the limiting block 15 can have a stepped shape, with the top of the limiting block 15 being higher than the bottom of the second blocking member 16, so that the second blocking member 16 can be blocked by the limiting block 15 within the range of the second cavity 43.

[0045] Reference Figure 1 , Figure 4 and Figure 5 In this embodiment, another part of the second blocking member 16 can be the bottom of the second blocking member 16.

[0046] Reference Figure 1 , Figure 4 and Figure 5 At least a portion of the second blocking member 16 is displaced along the moving direction by the second piezoelectric ceramic element 17. When a portion of the yarn guide needle 10 comes into contact with the second blocking member 16 in a swinging manner, the needle position of the yarn guide needle 10 is restricted to one side of the second blocking member 16 and stops swinging.

[0047] Reference Figure 1 , Figure 4 and Figure 5 When the second blocking member 16 stops swinging at the third station 8, the second blocking member 16 prevents the corresponding yarn guide needle 10 from swinging at the corresponding third station 8. When the second blocking member 16 stops at the fourth station 9, the second blocking member 16 prevents the corresponding yarn guide needle 10 from swinging at the corresponding fourth station 9.

[0048] Reference Figure 1 , Figure 4 and Figure 5 The maximum width between the first blocking member 13 and the second blocking member 16 is three stitch pitches. Specifically, the maximum width between the first baffle 40 and the second baffle 41 is three stitch pitches (at this time, the first baffle 40 is at the first station 6, and the second baffle 41 is at the fourth station 9). In this embodiment, the distance between two adjacent comb teeth 5 is equal to three stitch pitches plus the thickness of the second baffle 41 plus the thickness of the first baffle 40. One side of the comb tooth 5 is used to block the corresponding first blocking member 13 to stop swinging at the first station 6, and the other side of the comb tooth 5 is used to block the corresponding second blocking member 16 to stop swinging at the fourth station 9. This improves the positioning accuracy of the first station 6 and the fourth station 9, allowing the first blocking member 13 to stop precisely at the first station 6 to reduce errors, and the second blocking member 16 to stop precisely at the fourth station 9 to reduce errors.

[0049] Reference Figure 4 and Figure 5 One side of the first groove 44 is integrally connected to one side of the limiting block 15, and the other side of the first groove 44 is integrally connected to a corresponding comb tooth 5. A second cavity 43 is formed between one side of the limiting block 15 and the adjacent comb tooth 5. Specifically, the distance between one side of the limiting block 15 and the comb tooth 5 is equal to one stitch pitch plus the thickness of the second baffle 41. At least one limiting block 15 is located between the first cavity 45 and the first groove 44. The thickness of the limiting block 15 is one stitch pitch.

[0050] Reference Figure 4 and Figure 5By connecting the first cavity 45 and the first groove 44, the bottom of the second baffle 41 is positioned only within the first groove 44, allowing the second baffle 41 to control the switching between the third station 8 and the fourth station 9 without affecting the first station 6 and the second station 7, thus improving overall stability. On the other hand, the left and right sides of the first groove 44 are respectively the limiting block 15 and the comb tooth 5, which accurately and effectively positions the specific positions of the third station 8 and the fourth station 9, improving the accuracy of the second baffle 41 during the switching process between the third station 8 and the fourth station 9. This effectively controls the switching of the yarn guide needle 10 between the third station 8 and the fourth station 9, reducing errors and achieving a dual benefit.

[0051] Reference Figure 1 , Figure 4 and Figure 5 The third piezoelectric ceramic sheet 30 drives the yarn guide needle 10 to swing in the first cavity 45. The position of the yarn guide needle 10 is higher than that of the limiting block 15, so it is not affected by the limiting block 15. Since the width of the first cavity 45 is the width of three needle pitches, the third piezoelectric ceramic sheet 30 drives the yarn guide needle 10 to swing to a position of three needle pitches in the first cavity 45.

[0052] Reference Figure 1 , Figure 4 and Figure 5 When the second baffle 41 at the front end of the second piezoelectric ceramic sheet 24 is running, since the bottom of the second baffle 41 falls within the first groove 44, the second baffle 41 is blocked by the limiting block 15 and the tooth wall (the wall on the other side of the comb teeth 5) when it swings. The second baffle 41 can only swing left and right for a distance of one needle pitch within the first groove 44. Since the limiting block 15 limits the second baffle 41, the second baffle 41 can only swing between the limiting block 15 and the rightmost tooth wall (between the third station 8 and the fourth station 9).

[0053] Reference Figure 1 , Figure 4 and Figure 5 The torque of the second piezoelectric ceramic sheet 24 is greater than that of the third piezoelectric ceramic sheet 30, which makes the thrust provided by the second baffle 41 to the yarn guide needle 10 greater than the pressure generated by the yarn guide needle 10 on the second baffle 41. As a result, when the second baffle 41 swings from the fourth station 9 to the third station 8, the second baffle 41 can push the yarn guide needle 10 from the fourth station 9 to the third station 8 and finally stop at the third station 8. This is because the second baffle 41 stops after being blocked by the limiting block 15, and the yarn guide needle 10 stops at the third station 8 because the torque is less than that of the second baffle 41 and it is pushed to the third station 8.

[0054] The following explains how the yarn guide needle 10 works by switching between the third station 8 and the fourth station 9.

[0055] Reference Figure 1 , Figure 4 and Figure 5 When the guide needle 10 is at the first station 6 or the second station 7, the drive circuit controls the third piezoelectric ceramic plate 30 to swing to the left, and the needle position is at the first station 6 or the second station 7. At this time, the position of the second blocking member 16 can be anywhere and has no effect on the current first station 6 or second station 7.

[0056] Reference Figure 1 , Figure 4 and Figure 5 When the yarn guide needle 10 is at the third station 8: the drive circuit controls the second piezoelectric ceramic plate 24 to swing the second baffle 41 toward the third station 8, and at the same time controls the yarn guide needle 10 to swing toward the fourth station 9. At this time, the second baffle 41 will be blocked by the limiting block 15. Since the torque of the second blocking member 16 is greater than that of the yarn guide needle 10, the yarn guide needle 10 will press tightly on the second baffle 41 without pushing the second baffle 41 away and causing the needle to deviate. So the final result is that the second baffle 41 stops after being blocked by the limiting block 15, and the yarn guide needle 10 presses on the second baffle 41. Since the position of the second baffle 41 when it stops on one side of the limiting block 15 is exactly one stitch distance (i.e., the position of the third station 8), it is equivalent to the yarn guide needle 10 being at the third station 8 at this time.

[0057] Reference Figure 1 , Figure 4 and Figure 5 When the guide needle 10 is at the fourth station 9: the drive circuit controls the second piezoelectric ceramic plate 24 to swing toward the fourth station 9, causing the guide needle 10 to swing toward the fourth station 9. At the same time, it controls the second baffle 41 in front of the second piezoelectric ceramic plate 24 to move toward the fourth station 9. The guide needle 10 is in the right position and presses on the second baffle 41. Since the width is preset during the initial milling of the comb teeth 5, including the thickness of the second baffle 41, the position of the guide needle 10 pressing on the second baffle 41 is exactly three needle pitches. Therefore, the guide needle 10 will be at the fourth station 9 at this time.

[0058] Reference Figure 1 , Figure 4 and Figure 5 The width of the limiting slot 20 is one needle pitch. The upper part of the limiting slot 20 is connected to the first cavity 45. Each limiting slot 20 extends from the upper surface of the base 1 to the lower surface of the base 1. The first baffle 40 extends from the bottom of the limiting slot 20 into the limiting slot 20, so that at least a part of the first baffle 40 extends between the two first stations 6 and the second station 7. One side of the limiting slot 20 is connected to a corresponding comb tooth 5 to form a whole. The other side of the limiting slot 20 is connected to the other side of a corresponding limiting block 15 to form a whole.

[0059] Reference Figure 1 , Figure 4 and Figure 5 By setting the limiting slot 20, on the one hand, the limiting slot 20 can facilitate the first baffle 40 to extend between two adjacent first workstations 6 and second workstations 7, and the first baffle 40 swings within the limiting slot 20. On the other hand, the width of the limiting slot 20 can be used to limit the moving distance of the first baffle 40, thereby accurately and effectively limiting the first baffle 40 to switch back and forth between the first workstation 6 and the second workstation 7, achieving the effect of two uses in one.

[0060] Reference Figure 1 , Figure 4 and Figure 5 When the first terminal 23 is energized, the first piezoelectric ceramic sheet 22 causes the first baffle 40 to swing together within the two limiting slots 20. The lower part of the first baffle 40 is positioned within the limiting slots 20 and swings left and right.

[0061] Reference Figure 1 , Figure 4 and Figure 5 By connecting the first cavity 45 and the limiting slot 20, the first baffle 40 is only set within the limiting slot 20 to swing, so that the first baffle 40 is only used to control the switching between the first station 6 and the second station 7, without affecting the third station 8 and the fourth station 9, thereby improving the overall stability. On the other hand, the left and right sides of the limiting slot 20 are the comb teeth 5 and the limiting block 15, respectively, which accurately and effectively positions the first station 6 and the second station 7, improving the accuracy of the first baffle 40 during the switching process between the first station 6 and the second station 7, thereby effectively controlling the switching of the yarn guide needle 10 between the first station 6 and the second station 7, reducing errors, and achieving two benefits at once.

[0062] Reference Figure 1 , Figure 4 and Figure 5 The torque of the first piezoelectric ceramic sheet 22 is greater than the torque of the third piezoelectric ceramic sheet 30, which makes the thrust provided by the first baffle 40 to the guide needle 10 greater than the pressure generated by the guide needle 10 on the first baffle 40. As a result, when the first baffle 40 swings from the first station 6 to the second station 7, the first baffle 40 can push the guide needle 10 from the first station 6 to the second station 7 and finally stop at the second station 7. This is because the first baffle 40 stops after being blocked by the limiting block 15, and the guide needle 10 stops at the second station 7 because the torque is less than the torque of the first baffle 40 and it is pushed to the second station 7.

[0063] Reference Figure 1 , Figure 4 and Figure 5The following explains how the yarn guide needle 10 switches between the first station 6 and the second station 7:

[0064] Reference Figure 1 , Figure 4 and Figure 5 After the first piezoelectric ceramic sheet 22 is set, when the first baffle 40 at the front end of the first piezoelectric ceramic sheet 22 is running, since the bottom of the first baffle 40 is lower than the limiting slot 20 and falls within the limiting slot 20, the first baffle 40 is blocked by the limiting slot 20 and an adjacent comb tooth 5 when it swings. Therefore, the upper part of the first baffle 40 is restricted to swinging left and right only in the first cavity 45. Since the first cavity 45 is designed to be three stitch pitches wide, the first baffle 40 can swing left and right for one-third of a stitch pitch within the first cavity 45 due to the obstruction of the limiting slot 20. Because the limiting slot 20 limits the first baffle 40, the first baffle 40 can only swing between the first station 6 and the second station 7.

[0065] Reference Figure 1 , Figure 4 and Figure 5 When the yarn guide needle 10 is at the third station 8 or the fourth station 9: the drive circuit controls the first piezoelectric ceramic plate 22 to swing towards the first station 6 or the second station 7, and the needle position is at the third station 8 or the fourth station 9. At this time, the position of the first baffle 40 can be any position, and it has no effect on whether the current yarn guide needle 10 is at the third station 8 or the fourth station 9.

[0066] Reference Figure 1 , Figure 4 and Figure 5 When the yarn guide needle 10 is at the second station 7: the drive circuit controls the first piezoelectric ceramic plate 22 to swing the first baffle 40 toward the second station 7, and at the same time controls the yarn guide needle 10 to swing toward the first station 6. At this time, the first baffle 40 will be blocked by the other side of the limiting slot 20. Since the torque of the first baffle 40 is greater than that of the yarn guide needle 10, the yarn guide needle 10 will press tightly on the first baffle 40 without pushing the first baffle 40 away and causing the needle to deviate. So the final result is that the first baffle 40 stops after being blocked by the other side of the limiting slot 20, and the yarn guide needle 10 presses on the first baffle 40. Since the position of the first baffle 40 when it stops at one side of the limiting slot 20 is exactly one stitch distance (i.e., the position of the second station 7), it is equivalent to the yarn guide needle 10 being at the position of the second station 7 at this time.

[0067] Reference Figure 1 , Figure 4 and Figure 5When the yarn guide needle 10 is at the first station 6: the drive circuit controls the third piezoelectric ceramic sheet 30 to move the yarn guide needle 10 toward the first station 6, and at the same time controls the first piezoelectric ceramic sheet 22 to drive the first baffle 40 to swing toward the first station 6. The yarn guide needle 10 presses on the first baffle 40. Since the width is preset during the initial milling of the comb teeth 5, including the thickness of the first baffle 40, the position of the yarn guide needle 10 pressing on the first baffle 40 is exactly the position of the first station 6. Therefore, the yarn guide needle 10 will be at the first station 6 at this time.

[0068] Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0069] Example 4, refer to Figure 1 The difference between this fourth embodiment and the first embodiment is that the lengths of the first piezoelectric ceramic sheet 22 and the second piezoelectric ceramic sheet 24 are both greater than the length of the third piezoelectric ceramic sheet 30, so that the torques of the first piezoelectric ceramic sheet 22 and the second piezoelectric ceramic sheet 24 are both greater than the torques of the third piezoelectric ceramic sheet 30.

[0070] Reference Figure 1 , Figure 4 and Figure 5 By setting the length of the first piezoelectric ceramic sheet 22 to be greater than the length of the third piezoelectric ceramic sheet 30, the torque of the first piezoelectric ceramic element 12 is greater than the torque of the piezoelectric Jacquard element 2. This allows the first blocking member 13 to effectively block the impact of the yarn guide needle 10 on the first blocking member 13, so that the yarn guide needle 10 can be intercepted by the first blocking member 13 at the first station 6 or at the second station 7, thereby improving the stability and accuracy of the station switching process.

[0071] Reference Figure 1 , Figure 4 and Figure 5 By setting the length of the second piezoelectric ceramic sheet 24 to be greater than the length of the third piezoelectric ceramic sheet 30, the torque of the second piezoelectric ceramic element 17 is greater than the torque of the piezoelectric Jacquard element 2. This allows the second blocking member 16 to effectively block the impact of the yarn guide needle 10 on the second blocking member 16, so that the yarn guide needle 10 can be intercepted by the second blocking member 16 at the third station 8 or at the fourth station 9, thereby improving the stability and accuracy of the station switching process.

[0072] Reference Figure 1 , Figure 4 and Figure 5 Because the torque of the first baffle 40 is greater than the torque of the yarn guide needle 10, the first piezoelectric ceramic sheet 22 drives the first baffle 40 to swing. When it moves from the first station 6 to the second station 7, and the yarn guide needle 10 abuts against one side of the first baffle 40, the first baffle 40 can push the yarn guide needle 10 to move to the second station 7.

[0073] Reference Figure 1 , Figure 4 and Figure 5 Because the torque of the second baffle 41 is greater than the torque of the guide needle 10, the second piezoelectric ceramic sheet 24 drives the second baffle 41 to swing. When it moves from the fourth station 9 to the third station 8, and the guide needle 10 abuts against one side of the second baffle 41, the second baffle 41 can push the guide needle 10 to move to the third station 8.

[0074] Reference Figure 1 , Figure 4 and Figure 5 The piezoelectric ceramic sheet (first piezoelectric ceramic sheet 22 and second piezoelectric ceramic sheet 24) used at the baffle (first baffle 40 and second baffle 41) has a torque that is greater than that of the piezoelectric ceramic sheet (third piezoelectric ceramic sheet 30) of the yarn guide needle, and is at least twice as large.

[0075] Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0076] Example 5, refer to Figure 1 The difference between this fifth embodiment and the first embodiment is that the piezoelectric Jacquard element 2 is disposed on the upper surface of the base 1, the second piezoelectric ceramic element 17 is stacked on top of the piezoelectric Jacquard element 2, and the first piezoelectric ceramic element 12 is disposed on the lower surface of the base 1.

[0077] Reference Figure 1 By setting the piezoelectric Jacquard element 2 on the upper surface of the base 1, the second piezoelectric ceramic element 17 is stacked on top of the piezoelectric Jacquard element 2, and the first piezoelectric ceramic element 12 is arranged on the lower surface of the base 1, the first piezoelectric ceramic element 12 and the second piezoelectric ceramic element 17 can be installed independently without affecting the installation of the piezoelectric Jacquard element 2, making the layout more reasonable, allowing a part of the first baffle 40 to extend better into the comb teeth 5, and allowing a part of the second baffle 41 to extend better into the comb teeth 5.

[0078] Reference Figure 1 , Figure 4 and Figure 5 The base 1 includes a base body 51, a first mounting groove 52 on the lower surface of the base body 51, a second mounting groove 53 on the upper surface of the base body 51, and a third mounting groove 54 on the upper surface of the base body 51. The comb teeth 5, the limiting slots 20, and the limiting blocks 15 are respectively arranged on the front part of the base body 51.

[0079] Reference Figure 1Each first piezoelectric ceramic sheet 22 has a first mounting portion 14 mounted on a corresponding first mounting groove 52, each second piezoelectric ceramic sheet 24 has a second mounting portion 18 mounted on a corresponding second mounting groove 53, and each third piezoelectric ceramic sheet 30 has a third mounting portion mounted on a corresponding third mounting groove 54. Because the length of the second piezoelectric ceramic sheet 24 is greater than that of the third piezoelectric ceramic sheet 30, the second mounting groove 53 is specifically positioned on the side of the third mounting groove 54 facing the tail of the base body 51, thus providing a longer space to accommodate the first piezoelectric ceramic sheet 22. Because the second piezoelectric ceramic sheets 24 are stacked on top of the third piezoelectric ceramic sheet 30, the overall height of the third mounting groove 54 is higher than the overall height of the second mounting groove 53, forming a stepped arrangement between them.

[0080] Reference Figure 1 The base body 51, the first mounting groove 52, the second mounting groove 53, and the third mounting groove 54 are integrally cast to form a whole. By setting the integral casting, the base 1 can be quickly processed by mold, and the higher the output, the lower the production cost. At the same time, it ensures that all parts of the base 1 meet the standardization requirements, reducing the error of processing accuracy to a controllable range.

[0081] Reference Figure 1 Alternatively, the first mounting slot 52 and the second mounting slot 53 can be detachably mounted on the base body 51, thereby facilitating the removal and installation of the first piezoelectric ceramic sheet 22 and the second piezoelectric ceramic sheet 24.

[0082] Reference Figure 1 By setting a second piezoelectric ceramic element 17 stacked above the piezoelectric Jacquard element 2, and a second blocking member 16 extending from the first cavity 45 into the second cavity 43, the second piezoelectric ceramic element 17 drives the second blocking member 16 to swing without affecting the swing of the existing piezoelectric Jacquard element 2. This does not affect the jacquard yarn guiding of the original two stations of the yarn guide needle 10, and maintains the stability of the original swing of the yarn guide needle 10. On the other hand, the second blocking member 16 blocks the corresponding yarn guide needle 10, so that the yarn guide needle 10 stops swinging at the preset position of the second blocking member 16. This achieves the effect of increasing the number of stations of the yarn guide needle 10, and achieves two benefits at once.

[0083] Reference Figure 1 , Figure 4 and Figure 5 To increase rigidity, the comb teeth 5 can be made of stainless steel and secured to the front of the base 1 with at least one screw. Similarly, the limiting block 15 can also be made of stainless steel as needed. The limiting block 15, the limiting slot 20, and the comb teeth 5 are integrally cast to form a whole, and thus secured to the front of the base 1 with at least one screw.

[0084] Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0085] Example 6, refer to Figure 1 The difference between Embodiment Six and Embodiment One is that it further includes a power connection assembly 60. The power connection unit includes a first cable 62 with a first connector 61, a second cable 64 with a second connector 63, and a third circuit line 66 with a third connector 65. The first connector 61 is detachably mounted on a corresponding first power connection terminal 23, the second connector 63 is detachably mounted on a corresponding second power connection terminal 25, and the third connector 65 is detachably mounted on a corresponding third power connection terminal 32. The first cable 62, the second cable 64, and the third cable can all be used to transmit power signals or communication signals with patterned data.

[0086] Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0087] Example 7, referring to Figure 1 The difference between Embodiment 7 and Embodiment 1 is that Embodiment 7 further includes a power connection component. The power connection component includes at least one Jacquard driving device. The Jacquard driving device includes at least one first driving circuit board with a first driving circuit, a plurality of first power connection ports disposed on the first driving circuit board, at least one second driving circuit board with a second driving circuit, a plurality of second power connection ports disposed on the second driving circuit board, at least one third driving circuit board with a third driving circuit, and a plurality of third power connection ports disposed on the third driving circuit board.

[0088] Reference Figure 1 The output terminal of the first driving circuit board is electrically connected to the first power terminal 23 of the piezoelectric Jacquard element 2 in a coupled manner. The first power terminal is used to transmit electrical signals. The output terminal of the second driving circuit board is electrically connected to the second power terminal 25 of the second piezoelectric ceramic sheet 24 in a coupled manner.

[0089] Reference Figure 1 Referring to the figure, the first driving circuit board includes a first printed circuit board and a first driving circuit disposed on the first printed circuit board. The first driving circuit is used to drive the first piezoelectric ceramic sheet 22 of the piezoelectric Jacquard element 2 to swing. The first power connection port can be respectively disposed on the left and right sides of the first printed circuit board.

[0090] Reference Figure 1 The second driving circuit board includes a second printed circuit board and a second driving circuit disposed on the second printed circuit board. The second driving circuit is used to drive the second piezoelectric ceramic sheet 24 of the piezoelectric Jacquard element 2 to swing. The second power connection ports can be respectively disposed on the left and right sides of the second printed circuit board.

[0091] Reference Figure 1 In this embodiment, a first connector can be provided on the front of the first printed circuit board, so that the output end of the first drive circuit board and the first power terminal 23 of the piezoelectric Jacquard element 2 are electrically connected in a plug-in manner through the first connector.

[0092] Reference Figure 1 In this embodiment, a second connector can be provided on the front of the second printed circuit board, so that the output end of the second drive circuit board and the second electrical terminal 25 of the second piezoelectric ceramic sheet 24 are electrically connected in a plug-in manner through the second connector.

[0093] Reference Figure 1 The output terminal of the third drive circuit board is electrically connected to the third electrical terminal 32 of the piezoelectric Jacquard element 2 in a coupled manner. The third electrical terminal is used to transmit electrical signals. The output terminal of the third drive circuit board is electrically connected to the third electrical terminal 32 of the third piezoelectric ceramic sheet 30 in a coupled manner.

[0094] Reference Figure 1 The third drive circuit board includes a third printed circuit board and a third drive circuit disposed on the third printed circuit board. The third drive circuit is used to drive the third piezoelectric ceramic sheet 30 of the piezoelectric Jacquard element 2 to swing. The third power connection port can be disposed on the left and right sides of the third printed circuit board respectively.

[0095] Reference Figure 1 In this embodiment, a third connector can be provided on the front of the third printed circuit board so that the output end of the third drive circuit board and the third electrical terminal 32 of the piezoelectric Jacquard element 2 are electrically connected in a plug-in manner through the third connector.

[0096] To facilitate installation and disassembly, the first, second, and third power connectors can all be configured as male or female connectors. Specifically, they can be spring-loaded contacts, pin-type contacts, round-head contacts, or ball-bearing contacts. The first, second, and third power connectors can all be used to transmit power signals or communication signals with patterned data.

[0097] Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0098] Example 8, refer to Figure 7 The difference between this embodiment eight and embodiment seven is that the driving circuit includes a power supply VCC1, a power supply VCC2, a resistor R1, a resistor R3, a transistor Q1, a transistor Q2, a diode D1, a resistor R4, a resistor R5, a diode D2, a transistor Q3, a transistor Q4, and a diode D3.

[0099] Reference Figure 7 One end of resistor R1 is electrically connected to power supply VCC1, and the other end of resistor R1 is connected to the base of transistor Q2. The emitter of transistor Q2 is connected to a signal input terminal INPUT1. The collector of transistor Q2, the cathode of diode D1, the base of transistor Q1, and one end of resistor R2 are connected together. The other end of resistor R2, the collector of transistor Q1, and power supply VCC2 are connected together. The emitter of transistor Q1, the anode of diode D1, and one end of resistor R3 are connected together. One end of the piezoelectric Jacquard ceramic plate C1 is electrically connected to the other end of resistor R3. The other end of the piezoelectric ceramic plate C1 is connected to the collector of transistor Q1 and grounded.

[0100] Reference Figure 7 The emitter of transistor Q4 is connected to an input signal INPUT2. The base of transistor Q4, the other end of resistor R1, and the base of transistor Q2 are connected together. The collector of transistor Q4, the cathode of diode D2, the base of transistor Q3, and one end of resistor R4 are connected together. The other end of resistor R4, the collector of transistor Q3, and the collector of transistor Q1 are connected together. The emitter of transistor Q3, the anode of diode D2, and one end of resistor R5 are connected together. One end of the piezoelectric Jacquard ceramic plate C2 is electrically connected to the other end of resistor R5. The piezoelectric ceramic plate C1 and the piezoelectric ceramic plate C2 are connected together and grounded.

[0101] Reference Figure 7 When the input signal INPUT1 is low, the input signal INPUT2 is high; when the input signal INPUT1 is high, the input signal INPUT2 is low.

[0102] Reference Figure 7 Power supply VCC1 is 3-5V. Power supply VCC2 is 160-200V. Power supply VCC2 can be DC180V.

[0103] Reference Figure 7 Resistor R2 is the current-carrying bias resistor for transistor Q1, resistor R3 is the current-limiting resistor for the piezoelectric ceramic plate C1, and diode D1 is a reverse-biased diode used to quickly turn off transistor Q1.

[0104] Reference Figure 7 Resistor R4 is the current-carrying bias resistor for transistor Q3, resistor R5 is the current-limiting resistor for piezoelectric ceramic plate C2, resistor R1 is the common base bias resistor for transistors Q2 and Q4, and diode D2 is a reverse-biased diode used for fast turn-off of transistor Q3. Piezoelectric ceramic plate C1 can be represented as an equivalent capacitor C1 in the circuit diagram, and piezoelectric ceramic plate C2 can be represented as an equivalent capacitor C2 in the circuit diagram.

[0105] Reference Figure 7 The input signal INPUT1 is input through the emitter of transistor Q2, and the input signal INPUT2 is input through the emitter of transistor Q4. 0V is a low level, and the power supply VCC2 is a high level (in this embodiment, it can be a high level of 3.3V or 5V). The input signals of input signal INPUT1 and input signal INPUT2 are opposite. That is, when input signal INPUT1 is low, input signal INPUT2 is high; when input signal INPUT1 is high, input signal INPUT2 is low.

[0106] Reference Figure 7 When the input signal INPUT1 is low and the input signal INPUT2 is high, 3.3V will pass through resistor R1, through the base of transistor Q2 to the emitter of transistor Q2. At this time, transistor Q2 is turned on, and transistor Q1 is reverse biased due to the presence of diode D1, so transistor Q1 is turned off. The piezoelectric ceramic C1 discharges to the input signal INPUT1 terminal through resistor R3, diode D1, and transistor Q2. Since the input signal INPUT2 is high and the bases of transistors Q2 and Q4 are connected together, transistor Q4 is in a reverse biased cutoff state. At this time, the power supply VCC1 (in this embodiment, the power supply VCC1 can be DC180V) charges the piezoelectric ceramic C2 through resistor R4, the base of transistor Q3, and then through resistor R5.

[0107] Reference Figure 7 In summary: When input signal INPUT1 is low and input signal INPUT2 is high, piezoelectric ceramic C1 discharges, piezoelectric ceramic C2 charges, and piezoelectric ceramic plate 22 swings to one side.

[0108] Reference Figure 7 When the input signal INPUT1 is high and the input signal INPUT2 is low, 3.3V will flow through resistor R1, through the base of transistor Q4, to the emitter of transistor Q4. At this time, transistor Q4 is turned on, while transistor Q3 is reverse-biased due to the presence of diode D2, so transistor Q3 is turned off. The piezoelectric ceramic C2 discharges to the input signal INPUT2 terminal through resistor R5, diode D2, and transistor Q4. Since the input signal INPUT1 is high and the bases of transistors Q2 and Q4 are connected together, transistor Q2 is reverse-biased and cut off. At this time, DC180V flows through resistor R2, the base of transistor Q1, and then through resistor R3 to charge the piezoelectric ceramic C1.

[0109] Reference Figure 7In summary: When input signal INPUT1 is high and input signal INPUT2 is low, piezoelectric ceramic C1 charges and piezoelectric ceramic C2 discharges, causing piezoelectric ceramic plate 22 to oscillate in opposite directions.

[0110] Advantages of drive circuits:

[0111] Reference Figure 7 By setting the input signals INPUT1 and INPUT2 to be input from the emitters of transistors Q2 and Q4 respectively, instead of from the base, it becomes a common-base amplifier circuit, which has better switching characteristics and faster response speed.

[0112] Reference Figure 7 This driving circuit can effectively shorten the transition time of transistors Q2 and Q4 in the amplification region when they are turned on and off, thereby reducing the power consumption and heat generation of transistors Q2 and Q4.

[0113] Reference Figure 7 Transistors Q2 and Q4 share a single bias resistor R1, which reduces the number of circuit components, enhances reliability, and improves economic efficiency.

[0114] Reference Figure 7 For the drive circuit to work properly, the high-level signal input voltage must be equal to the bias voltage source voltage of resistors R2 and R5 (in this embodiment, it can be 3.3V or 5V).

[0115] Reference Figure 7 The negative terminal of diode D3, the other end of the piezoelectric ceramic plate C1, and the other end of the piezoelectric ceramic plate C2 are connected together. The positive terminal of diode D3 is grounded. Diode D3 is a Zener diode.

[0116] Reference Figure 7 By setting diode D3, the driving circuit can be made to have a negative voltage function, eliminating the need for an additional negative voltage power supply.

[0117] Reference Figure 7Diode D3 is a Zener diode located between the common terminal of piezoelectric ceramics C1 and C2 and ground. Its main function is to generate a stable negative voltage when piezoelectric ceramic plate 22 is working. The generated negative voltage is equal to the Zener voltage Vd of diode D3. The working principle can be explained by the charging and discharging of piezoelectric ceramic C1: The common point of piezoelectric ceramics C1 and C2 is connected to diode D3, so the voltage at the common point is constant and equal to the Zener voltage Vd of diode D3. When piezoelectric ceramic C1 is charging, its voltage after charging is DC180 - Vd. When piezoelectric ceramic C1 is discharging, piezoelectric ceramic C2 is charging. Since the voltage at the common point of piezoelectric ceramics C1 and C2 is constant and equal to Vd, piezoelectric ceramic C1 will have a reverse voltage at this time. The common point is positive, and the side of resistor R3 discharging is 0, meaning a negative voltage of Vd is generated on piezoelectric ceramic C1. The principle for piezoelectric ceramic C2 is the same. Diode D3 acts as a passive negative voltage. On the one hand, the presence of diode D3 reduces the forward voltage of piezoelectric ceramic plate 22 during operation, thus significantly improving the service life of piezoelectric ceramic plate 22 without affecting its torque. Furthermore, diode D3 is a passive component and will not produce any other adverse effects.

[0118] Other structures are similar to those in Embodiment 7, and will not be described in detail here.

[0119] The above are merely specific embodiments of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial modifications made to the present invention using this concept shall be considered as infringing upon the protection scope of the present invention.

Claims

1. A multifunctional piezoelectric Jacquard device, comprising at least one base and a plurality of piezoelectric Jacquard elements arranged on the base, each of the piezoelectric Jacquard elements having at least one yarn guide needle for jacquard yarn guiding, characterized in that: It also includes at least one first station, at least one second station, at least one third station, at least one fourth station, a first needle position limiter, and at least one second needle position limiter. The first station is the first needle position of the yarn guide needle, the fourth station is the last needle position of the yarn guide needle, the second station is located between the first station and the third station, and the third station is located between the second station and the fourth station. The first needle position limiter is used to prevent the yarn guide needle from oscillating between the first and second work positions, and the second needle position limiter is used to prevent the yarn guide needle from oscillating between the third and fourth work positions. The corresponding yarn guide needle is pushed to the second station by the corresponding first needle position limiter and stops swinging; the corresponding yarn guide needle is pushed to the third station by the corresponding second needle position limiter and stops swinging. The base is made of magnesium alloy, aluminum alloy, or magnesium-aluminum alloy.

2. The multifunctional piezoelectric jacquard device as described in claim 1, characterized in that: The distance between the first workstation and the fourth workstation is three needle pitches.

3. The multifunctional piezoelectric jacquard device as described in claim 1, characterized in that: The distance between the first workstation and the second workstation is one stitch pitch, the distance between the second workstation and the third workstation is one stitch pitch, and the distance between the third workstation and the fourth workstation is one stitch pitch.

4. The multifunctional piezoelectric jacquard device as described in claim 1, characterized in that: It also includes multiple comb teeth arranged on the front of the base, with the first station, the second station, the third station and the fourth station respectively arranged between two adjacent comb teeth.

5. The multifunctional piezoelectric jacquard device as described in claim 1, characterized in that: When the torque of the corresponding first needle position limiter is greater than the torque of the corresponding piezoelectric Jacquard element, the corresponding yarn guide needle is pushed to the second station by the corresponding first needle position limiter and stops swinging. When the torque of the corresponding second needle position limiter is greater than the torque of the corresponding piezoelectric Jacquard element, the corresponding yarn guide needle is pushed to the third station by the corresponding second needle position limiter and stops swinging.

6. The multifunctional piezoelectric jacquard device as described in claim 1, characterized in that: The first needle position limiter includes at least one first blocking member disposed on one side of the corresponding yarn guide needle. The first blocking member is used to limit the displacement of a portion of the corresponding yarn guide needle along the moving direction. The first blocking member is arranged laterally offset from the moving direction within the movement space of the yarn guide needle. The second needle position limiter includes at least one second blocking member disposed on the other side of the corresponding yarn guide needle. The second blocking member is used to limit the displacement of another portion of the corresponding yarn guide needle along the moving direction. The second blocking member is arranged laterally offset from the moving direction within the movement space of the yarn guide needle.

7. The multifunctional piezoelectric jacquard device as described in claim 6, characterized in that: The first needle position limiter further includes at least one first piezoelectric ceramic element, and the first blocking member is disposed on the front part of the first piezoelectric ceramic element. The second needle position limiter further includes at least one second piezoelectric ceramic element, and the second blocking member is disposed on the front part of the second piezoelectric ceramic element. The first piezoelectric ceramic element drives the first blocking member, causing the first blocking member to swing between the first station and the second station. The second piezoelectric ceramic element drives the second blocking member, causing the second blocking member to swing between the third station and the fourth station.

8. The multifunctional piezoelectric jacquard device as described in claim 7, characterized in that: The second piezoelectric ceramic element is stacked on top of the piezoelectric Jacquard element, and the first piezoelectric ceramic element is disposed on the lower surface of the base.

9. A textile machine, characterized in that: The textile machinery has at least one piezoelectric Jacquard device, which is the piezoelectric Jacquard device according to any one of claims 1 to 8.

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