Jacquard device and warp knitting machine

Abstract

A jacquard device and warp knitting machine, comprising a base, a mounting portion, an execution portion, a part of the first piezoelectric jacquard element is detachably installed on the mounting portion, the other part of the first piezoelectric jacquard element independently realizes the pattern yarn guide in the form of left and right swinging, the execution portion further comprises a plurality of second piezoelectric jacquard elements, a part of the second piezoelectric jacquard element is detachably installed on the mounting portion, the other part of the second piezoelectric jacquard element independently realizes the pattern yarn guide in the form of left and right swinging. In the present application, by setting the first jacquard needle unit and the second jacquard needle unit, a pattern unit can be set on one base, compared with the existing pattern unit which needs to set two bases, when the jacquard device is installed on the warp knitting machine, the weight of one row of base is saved, the occupied space of one row of base is saved and the cost of one row of base is saved.

Description

Technical Field

[0001] This invention relates to the field of warp knitting machines, and in particular to a jacquard knitting device and a warp knitting machine. Background Technology

[0002] A piezoelectric Jacquard consists of a piezoelectric needle selector, a guide bar gripper, a yarn guide, a protective cover, a cable plug, and an aluminum-magnesium alloy base for fixing and limiting the piezoelectric needle selector. The piezoelectric needle selector is composed of a three-layer structure: piezoelectric ceramic, a substrate (insulating glass fiber layer), and another piezoelectric ceramic. By alternately applying positive and negative voltages to both sides of the piezoelectric Jacquard element through a Jacquard actuator, the piezoelectric ceramic bends, thereby allowing the yarn guide to deflect to the left or right. When positioning blocks are placed on both sides of the yarn guide, its deflection angle can be precisely controlled. Furthermore, because the piezoelectric ceramic has a capacitor-like effect, the piezoelectric Jacquard element can maintain its deflected position.

[0003] A typical jacquard consists of a base and ceramic plates. Its key structural feature is the horizontal mounting of a row of piezoelectric ceramic plates at specified intervals on a single base. In application, multiple jacquards are arranged horizontally and mounted on the comb mounting section. Typically, a complete jacquard application consists of two comb mounting sections, with each section having jacquards corresponding to odd and even pin positions. The reason for dividing a complete jacquard application into two groups, using an E24 pin pitch jacquard as an example, is that the pin pitch of each E24 pin is 1.058mm, and the thickness of the piezoelectric ceramic plates is already 0.8mm. Clearly, it is impossible to place piezoelectric ceramic plates on a single base within such a spacing. Therefore, the odd and even pin positions of the E24 ceramic plates with a 1.058mm pin pitch are extracted and divided into two groups. Therefore, the stitch pitch of the Jacquard rows, whether odd or even, doubles to 2.116mm, a distance sufficient to accommodate ceramic discs of the current thickness. Thus, a complete Jacquard setup consists of two comb mounting sections with odd and even rows of stitches, staggered by one stitch between the odd and even rows during installation, forming a complete Jacquard application.

[0004] A complete single jacquard application (1 odd and 1 even = 2 comb mounting units) is a single jacquard application. Two sets (2 odd and 2 even = 4 comb mounting units) constitute a double jacquard application, and so on. Currently, the jacquard configuration consists of only one row of piezoelectric ceramic sheets on each base. Multiple horizontally distributed bases simply increase the total number of these piezoelectric ceramic sheets, but the total number remains one row (layer). Two sets of horizontally distributed jacquards (odd and even) represent two separate rows.

[0005] In the existing technology, the double Jacquard warp knitting machine has two jacquard units composed of piezoelectric Jacquard combs. In the existing Jacquard jacquard device, a base is required to install the piezoelectric Jacquard elements, and then the Jacquard jacquard device is installed on the comb mounting part. A jacquard unit has two rows of comb mounting parts and two rows of bottom bases, which results in four rows of comb mounting parts and four rows of bottom bases in a double Jacquard warp knitting machine, and six rows of comb mounting parts and six rows of bottom bases in a triple Jacquard warp knitting machine (for details, please refer to Chinese Utility Model Patent (Application No.: 202121809958.7, Publication No.: CN216040097U) which discloses a triple Jacquard double needle bed warp knitting machine, Chinese Utility Model Patent (Application No.: 201520456123.6, Publication No.: CN204849251U) which discloses a double Jacquard warp knitting machine with a pressure plate, and Chinese Utility Model Patent (Application No.: 201520456123.6, Publication No.: CN204849251U) which discloses an eight-comb double Jacquard comb arrangement and swing mechanism).

[0006] However, the comb mounting section and the base only serve to connect and install the combs. In the case of limited installation space inside the comb mounting cradle, they also occupy space and affect the spacing between the two Jacquard combs. These extra comb mounting sections and bases occupy space and increase the weight of the Jacquard combs. Summary of the Invention

[0007] This invention provides a Jacquard device and a warp knitting machine, the main purpose of which is to overcome the defect of existing Jacquard devices that only have a row of piezoelectric Jacquard elements for jacquard yarn guiding.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] A jacquard weaving device includes a base, a plurality of mounting portions arranged on the base, and at least one actuating portion disposed on the base. The actuating portion includes a plurality of first piezoelectric jacquard elements, a portion of which is mounted on the mounting portion, and another portion of which has a first jacquard needle unit. The first jacquard needle unit independently guides the jacquard yarn by swinging left and right. The actuating portion also includes a plurality of nth piezoelectric jacquard elements, a portion of which is mounted on the mounting portion, and another portion of which has an nth jacquard needle unit. The nth jacquard needle unit independently guides the jacquard yarn by swinging left and right. The first and nth piezoelectric jacquard elements are arranged in a bottom-to-top order and stacked sequentially on the mounting portion.

[0010] A warp knitting machine includes a plurality of jacquard knitting devices, wherein the jacquard knitting devices are the jacquard knitting devices described above.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] 1. In this invention, by setting a first piezoelectric Jacquard element and an nth piezoelectric Jacquard element in a bottom-to-top order and sequentially installing them on the mounting part, both the first and nth piezoelectric Jacquard elements can independently achieve jacquard yarn guiding. Compared with existing Jacquard jacquard devices, without increasing the number of bases, it achieves independent yarn guiding for both the first and nth piezoelectric Jacquard elements. Its structure is compact. When this Jacquard jacquard device is installed on a warp knitting machine, it reduces the space occupied by one row of bases. It achieves the effect of installing two rows of piezoelectric Jacquard elements using only one row of bases, saving the cost of at least one base. On the other hand, it improves the integration of the Jacquard jacquard device, achieving two benefits at once.

[0013] 2. In this invention, by setting a portion of the (n+1)th piezoelectric Jacquard element to be mounted on the mounting part, the first piezoelectric Jacquard element, the nth piezoelectric Jacquard element, and the (n+1)th piezoelectric Jacquard element are respectively integrated on a base, thereby improving the integration of the Jacquard jacquard device. When the Jacquard jacquard device is installed on a warp knitting machine, it can save the weight of at least two rows of bases, save the space occupied by two rows of bases, and save the cost of two rows of bases. Attached Figure Description

[0014] Figure 1 A schematic diagram of the structure of the Jacquard device mounted on the comb frame.

[0015] Figure 2 This is a schematic diagram of the structure of the present invention.

[0016] Figure 3 for Figure 2 A schematic diagram of the structure of part A.

[0017] Figure 4 This is a schematic diagram of the structure of Example 2.

[0018] Figure 5 This is a schematic diagram of the structure of Example 3.

[0019] Figure 6 This is a schematic diagram of the structure of the Jacquard device after it has been disassembled from the comb.

[0020] Figure 7 This is a schematic diagram of the fourth conductive sheet.

[0021] Figure 8This is the circuit diagram of the drive circuit.

[0022] Figure 9 The diagram shows the circuit schematic, where the arrows indicate the path through which the charging current of the equivalent capacitor C1 flows when electronic switch K1 is turned on and electronic switch K2 is turned off.

[0023] Figure 10 The circuit diagram shows the path by which the current from inductor L1 charges the equivalent capacitance C1 when electronic switch K1 and electronic switch K2 are both turned off.

[0024] Figure 11 The circuit diagram shows the path through which the equivalent capacitor C1 discharges to the inductor L1 and the electronic switch K2 when electronic switch K1 is turned off and electronic switch K2 is turned on.

[0025] Figure 12 The circuit diagram shows that when electronic switch K1 and electronic switch K2 are both turned off, the current in inductor L1 returns to the power supply path.

[0026] Figure 13 This is the circuit diagram for Example 5. Detailed Implementation

[0027] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0028] Example 1, refer to Figure 1 ,、 Figure 2 and Figure 6 A piezoelectric ceramic jacquard device and a warp knitting machine are disclosed. The jacquard device is detachably mounted on the warp knitting machine. The jacquard device includes a base 11, a plurality of mounting parts 12 arranged on the base 11, at least one actuating part 14 disposed on the base 11, and at least one jacquard driver 13. The jacquard driver 13 drives the actuating part 14 to independently guide the jacquard yarn by swinging left and right. The base 11 may be made of aluminum-magnesium alloy, aluminum alloy, or magnesium alloy.

[0029] Reference Figure 2 The execution unit 14 includes a plurality of first piezoelectric Jacquard elements 16 and a plurality of nth piezoelectric Jacquard elements. A portion of the nth piezoelectric Jacquard element is mounted on the mounting unit 12, and another portion of the nth piezoelectric Jacquard element has an nth Jacquard needle unit. The nth Jacquard needle unit independently realizes jacquard yarn guiding by swinging left and right. The first piezoelectric Jacquard elements and the nth piezoelectric Jacquard elements are mounted on the mounting unit 12 in a stacked manner from bottom to top. n takes the value of a positive integer greater than 2. In this embodiment, when n takes the value of 2, the nth piezoelectric Jacquard element is the second piezoelectric Jacquard element 15.

[0030] Reference Figure 2 andFigure 3 A portion of the first piezoelectric Jacquard element 16 is mounted on the mounting part 12, and another portion of the first piezoelectric Jacquard element 16 is used to independently realize jacquard yarn guiding. A portion of the second piezoelectric Jacquard element 15 is mounted on the mounting part 12, and another portion of the second piezoelectric Jacquard element 15 is used to independently realize jacquard yarn guiding. The first piezoelectric Jacquard element 16 and the second piezoelectric Jacquard element 15 are mounted on the mounting part 12 from bottom to top.

[0031] Reference Figure 1 , Figure 2 and Figure 3 By setting the first piezoelectric Jacquard element 16 and the second piezoelectric Jacquard element 15 to be installed sequentially from bottom to top on the mounting part 12, both the first piezoelectric Jacquard element 16 and the second piezoelectric Jacquard element 15 can independently guide the jacquard yarn. Compared with the existing Jacquard jacquard device, without increasing the number of base bases 11, it achieves the goal of independently guiding the yarn for both the first piezoelectric Jacquard element 16 and the second piezoelectric Jacquard element 15. Its structure is compact. When the Jacquard jacquard device is installed on the warp knitting machine, it reduces the space occupied by one row of base bases 11. It achieves the effect of installing two rows of piezoelectric Jacquard elements by using only one row of base bases 11, saving the cost of one row of base bases 11. On the other hand, it improves the integration of the Jacquard jacquard device, achieving two benefits at once.

[0032] Reference Figure 1 , Figure 2 and Figure 3 By setting the first piezoelectric Jacquard element 16 and the second piezoelectric Jacquard element 15 to be installed sequentially from bottom to top on the mounting part 12, when the Jacquard jacquard device is installed on the warp knitting machine, the original structure of setting two horizontal rows of Jacquard combs, which required two guide devices 1 to install two comb mounting parts 111 respectively, and each comb mounting part 111 to install a base 11, can now be achieved by using only one guide device 1, one comb mounting part 111, and one base 11 to install the first piezoelectric Jacquard element 16 and the second piezoelectric Jacquard element 15 respectively to form two horizontal rows of Jacquard combs. Therefore, the weight of one guide device 1 is saved, the cost of one guide device 1 is saved, and the space occupied by one guide device 1 is saved.

[0033] Reference Figure 2 and Figure 3 By setting the first piezoelectric Jacquard element 16 and the second piezoelectric Jacquard element 15 on the base 11 respectively, the integration of the Jacquard jacquard device is improved, so that the Jacquard jacquard device can be well applied to the use requirements of double Jacquard warp knitting machine.

[0034] Reference Figure 2 and Figure 3Another part of the first piezoelectric Jacquard element 16 has at least one first Jacquard needle unit 21 that can swing independently left and right, and a first piezoelectric needle selector plate 234 for driving the first Jacquard needle unit 21 to swing. The Jacquard driver drives the first piezoelectric needle selector plate 234 so that the first Jacquard needle unit 21 can independently realize jacquard yarn guiding in a left and right swing manner. Another part of the second piezoelectric Jacquard element 15 has at least one second Jacquard needle unit 22 that can swing independently left and right, and a second piezoelectric needle selector plate 243 for driving the second Jacquard needle unit 22 to swing. The Jacquard driver drives the second piezoelectric needle selector plate 243 so that the second Jacquard needle unit 22 can independently realize jacquard yarn guiding in a left and right swing manner. The first Jacquard needle unit 21 and the second Jacquard needle unit 22 constitute a jacquard unit.

[0035] Reference Figure 1 , Figure 2 and Figure 3 By setting the first Jacquard needle unit 21 and the second Jacquard needle unit 22 to form a jacquard unit, a jacquard unit can be set on a single base 11. Compared with the existing jacquard unit which requires two bases 11, when the Jacquard jacquard device is installed on the warp knitting machine, it saves the weight of a row of bases 11, the space occupied by a row of bases 11, and the cost of a row of bases 11.

[0036] Reference Figure 2 and Figure 3 A portion of each first piezoelectric Jacquard element 16 is detachably mounted on the mounting portion 12, and a portion of each second piezoelectric Jacquard element 15 is detachably mounted on the mounting portion 12.

[0037] Reference Figure 2 and Figure 3 The first Jacquard needle unit 21 includes at least one first comb holding end 231, at least one first guide needle 232 disposed on the front part of the first comb holding end 231, and at least one second guide needle 233 disposed on the front end of the first guide needle 232. The first piezoelectric needle selector plate 234 is disposed on the rear part of the first comb holding end 231. Two first conductive plates are respectively disposed on the tail of the first piezoelectric needle selector plate 234. A part of the first piezoelectric needle selector plate 234 is detachably mounted on the mounting part 12. One first conductive plate is used as a positive electrode and the other first conductive plate is used as a negative electrode. The two piezoelectric ceramic plates in the first piezoelectric needle selector plate are electrically connected to the corresponding first conductive plates. Both first conductive plates are electrically connected to the Jacquard driver 13.

[0038] Reference Figure 2 and Figure 3The second Jacquard needle unit 22 includes at least one second comb bar holding end 241, at least one second yarn guide needle 240 disposed on the front part of the second comb bar holding end 241, and at least one second yarn guide hole 242 disposed on the front end of the second yarn guide needle 240. A second piezoelectric needle separator 243 is disposed on the rear part of the second comb bar holding end 241. Two second conductive plates are respectively disposed on the tail of the second piezoelectric needle separator 243. Partially mounted on the mounting section 12, one second conductive plate serves as the positive electrode and the other second conductive plate serves as the negative electrode. The two piezoelectric ceramic plates in the second piezoelectric needle selection plate 243 are electrically connected to the corresponding second conductive plates. Both second conductive plates are electrically connected to the Jacquard driver 13. The first yarn guide needle 232 and the second yarn guide needle 240 are both located at the front of the base 11, with the second yarn guide needle 240 located above the first yarn guide needle 232.

[0039] Reference Figure 2 and Figure 3 When the first guide needle 232 is arranged in an odd number of needle positions, the second guide needle 240 is arranged in either an even number of needle positions or an odd number of needle positions.

[0040] Reference Figure 2 and Figure 3 The Jacquard driver 13 includes at least one power supply cable unit 30. A portion of the power supply cable unit 30 is detachably mounted on the base 11. The output end of the power supply cable unit 30 is pluggably mounted on the power terminal of the actuator 14.

[0041] Reference Figures 1-5 In this embodiment, the second piezoelectric Jacquard element 15 specifically refers to the second piezoelectric Jacquard element stacked on the base 11 in a bottom-to-top order above the first piezoelectric Jacquard element. The first piezoelectric Jacquard element is the first piezoelectric Jacquard element 16, and the second piezoelectric Jacquard element is the second piezoelectric Jacquard element 15.

[0042] Example 2, refer to Figure 4 The difference between this second embodiment and the first embodiment is that the execution unit 14 includes a plurality of first piezoelectric Jacquard elements 16, a plurality of second piezoelectric Jacquard elements 15 and a plurality of nth piezoelectric Jacquard elements 300, where n is a positive integer greater than 2. In this embodiment, when n is 3, the nth piezoelectric Jacquard element is the third piezoelectric Jacquard element 300.

[0043] Reference Figure 4A portion of each third piezoelectric Jacquard element 300 is detachably mounted on the mounting portion 12. Another portion of the third piezoelectric Jacquard element 300 has at least one third Jacquard needle unit 301 that can swing independently left and right, and a third piezoelectric needle selector plate 305 for driving the third Jacquard needle unit 301 to swing. The Jacquard driver drives the third piezoelectric needle selector plate 305 so that the third Jacquard needle unit 301 can independently realize jacquard yarn guiding in a left and right swing manner.

[0044] Reference Figure 4 The first piezoelectric Jacquard element 16, the second piezoelectric Jacquard element 15, and the third piezoelectric Jacquard element 300 are sequentially mounted on the mounting part 12 from bottom to top.

[0045] Reference Figure 4 A portion of each third piezoelectric Jacquard element 300 is detachably mounted on the mounting section 12.

[0046] Reference Figure 1 and Figure 4 The third Jacquard needle unit 301 includes at least one third comb bar holding end 302, at least one third yarn guide needle 303 disposed on the front part of the third comb bar holding end 302, and at least one third yarn guide hole 304 disposed on the front end of the third yarn guide needle 303. A third piezoelectric needle separator 305 is disposed on the rear part of the third comb bar holding end 302, and two third conductive plates are respectively disposed on the tail of the third piezoelectric needle separator 305. A portion of 5 is detachably mounted on the mounting part 12. One third conductive sheet serves as the positive electrode, and the other third conductive sheet serves as the negative electrode. The two piezoelectric ceramic sheets in the third piezoelectric needle selection sheet 305 are electrically connected to the corresponding third conductive sheets. Both third conductive sheets are electrically connected to the Jacquard driver 13. The third yarn guide needles 303 are located at the front of the base 11, and the third yarn guide needles 303 are located above the second yarn guide needles 240.

[0047] Reference Figure 1 and Figure 4 Another part of the third piezoelectric Jacquard element has at least one third Jacquard needle unit that can swing independently left and right. The third Jacquard needle unit has a third guide needle 303. When the first guide needle 232 is arranged in an odd number of needle positions, the third guide needle 303 is arranged in an even number of needle positions or an odd number of needle positions.

[0048] Reference Figure 1 and Figure 6When in use, multiple Jacquard devices can be arranged and installed on a comb mounting part 111. A tail clip 112 is provided on the tail of the base 11 to mount the base 11 on the comb mounting part 111. The comb mounting part 111 is mounted on the comb cradle by a guide device 1. The specific structure of the guide device 1 can be referred to the guide device 1 described in Chinese Invention Patent (Application No.: 200810083490.0, Publication No.: 101338486B).

[0049] Although, Figure 6 The diagram only shows four Jacquard devices, but in actual use, it should not be limited to installing four Jacquard devices at the same time. This Jacquard device is used on warp knitting machines, and multiple Jacquard devices need to be installed in the warp knitting machine.

[0050] Reference Figure 1 and Figure 4 By mounting a portion of the third piezoelectric Jacquard element 300 on the mounting part 12, the first piezoelectric Jacquard element 16, the second piezoelectric Jacquard element 15, and the third piezoelectric Jacquard element 300 are integrated on a base 11, thereby improving the integration of the Jacquard jacquard device. When the Jacquard jacquard device is installed on a warp knitting machine, it can save the weight of two rows of base 11, save the space occupied by two rows of base 11, and save the cost of two rows of base 11. On the other hand, it makes the Jacquard jacquard device well applicable to the use requirements of a three-Jacquard warp knitting machine, achieving a double benefit.

[0051] Reference Figure 1 , Figure 2 and Figure 3 By setting the first piezoelectric Jacquard element 16, the second piezoelectric Jacquard element 15, and the third piezoelectric Jacquard element 300, and stacking them sequentially on the mounting part 12 from bottom to top, when the Jacquard jacquard device is installed on the warp knitting machine, the original structure of setting three horizontal rows of Jacquard combs, which required three guide devices 1 to install two comb mounting parts 111 respectively, and each comb mounting part 111 to install a base 11, can now be achieved by using only one guide device 1, one comb mounting part 111, and one base 11 to install the first piezoelectric Jacquard element 16, the second piezoelectric Jacquard element 15, and the third piezoelectric Jacquard element 300 respectively, thus forming three horizontal rows of Jacquard combs. Therefore, it also saves the weight of two guide devices 1, saves the cost of two guide devices 1, and saves the space occupied by two guide devices 1.

[0052] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5The base 11 has a plurality of stops 500 on its front part. The stops 500 are used to limit the swing position of the guide needles. A reinforcing rib 501 is provided on the top of the stops 500. The top of the stops 500 is connected to the reinforcing rib 501 to form an inseparable whole. The bottom of the baffle is located on the front part of the base 11 to form an inseparable whole. The reinforcing rib 501 is provided to increase the hardness of the stops 500 so that the stops 500 can withstand the impact force after the guide needles swing. The guide needles are the first guide needle 232, the second guide needle 240 and the third guide needle 303.

[0053] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5 The first piezoelectric Jacquard element 16, the second piezoelectric Jacquard element 15, and the third piezoelectric Jacquard element 300 can be detachably installed or non-detachably installed.

[0054] Example 3, referring to Figure 5 The difference between this embodiment 3 and embodiment 2 is that the Jacquard driver 13 includes at least one connector 310 and at least one drive circuit unit 311. The output end of the drive circuit unit 311 is electrically connected to the input end of the connector 310. The output end of the connector 310 is pluggably mounted on the power terminal of the actuator 14.

[0055] Reference Figure 5 The drive circuit unit 311 includes a drive circuit board and a plurality of drive circuits disposed on the drive circuit board. Each group of drive circuits is used to drive the corresponding first Jacquard pin unit 21, second Jacquard pin unit 22 and nth Jacquard pin unit 301 to swing.

[0056] Reference Figure 5 The driving circuit board includes a first printed circuit board 321 and a second printed circuit board 322. The first printed circuit board 321 is provided with a driving circuit. The output terminal of the first printed circuit board 321 and the input terminal of the second printed circuit board 322 are electrically connected together by soldering to form an inseparable whole. The output terminal of the second printed circuit board 322 and the input terminal of the connector are electrically connected together by soldering to form an inseparable whole.

[0057] Reference Figure 7 The connector 310 includes a housing 400, a plurality of slots 401 disposed within the housing 400, a plurality of pads 402 disposed within the slots 401, and a plurality of conductive fourth conductive plates 404.

[0058] Reference Figure 7Each pad 402 is provided with a fourth conductive sheet 404. The slot 401 extends from the front of the housing 400, through the interior of the housing 400, and finally to the rear of the housing 400. The rear end of the fourth conductive sheet 404 is located on the rear of the housing 400, and the front end of the fourth conductive sheet 404 extends into the slot 401. Specifically, six fourth conductive sheets 404 are provided in one slot 401. Three fourth conductive sheets 404 serve as positive electrodes and are electrically connected to the positive electrodes of the corresponding first, second, and nth conductive sheets, respectively. The other three fourth conductive sheets 404 serve as negative electrodes and are electrically connected to the negative electrodes of the corresponding first, second, and nth conductive sheets, respectively.

[0059] Reference Figure 5 and Figure 7 Specifically, the input terminal of the fourth conductive sheet 404 and the output terminal of the second printed circuit board 322 are electrically connected together by soldering.

[0060] Other structures are similar to those in Embodiment 2, and will not be described in detail here.

[0061] Example 4, refer to Figure 8 The difference between this fourth embodiment and the third embodiment is that the driving circuit includes at least one power supply VCC, at least one PWM signal source, at least one Jacquard control signal S1, at least one Jacquard control signal S2, at least one AND gate U1, at least one AND gate U2, at least one electronic switch K1, at least one electronic switch K2, at least one freewheeling diode D1, at least one freewheeling diode D2, at least one inductor L1, and at least one equivalent capacitor C1. The PWM signal source is electrically connected to the input terminals of AND gate U1 and AND gate U2, respectively. The Jacquard control signal S1 is electrically connected to the input terminal of AND gate U1, and the Jacquard control signal S2 is electrically connected to the input terminal of AND gate U2. The input terminals are electrically connected. The power supply VCC is electrically connected to one end of the electronic switch K1 and the cathode of the freewheeling diode D1. The output terminal of the AND gate U1 is electrically connected to the electronic switch K1, and the output terminal of the AND gate U2 is electrically connected to the electronic switch K2. The other end of the electronic switch K1, one end of the electronic switch K2, the anode of the freewheeling diode D1, and the cathode of the freewheeling diode D2 are all electrically connected to one end of the inductor L1. The other end of the capacitor L1 is electrically connected to one end of the equivalent capacitor C1. The other end of the electronic switch K2 and the anode of the freewheeling diode D2 are both electrically connected to the other end of the equivalent capacitor C1 and are grounded.

[0062] Circuit Working Principle: The piezoelectric ceramic sheet in a Jacquard circuit is essentially a capacitive element, consisting of two capacitors. When the piezoelectric ceramic sheet is charged, it deforms under the piezoelectric effect, causing it to oscillate left and right. The following is the equivalent circuit of the piezoelectric ceramic sheet, with the middle part grounded. Charging or discharging these two capacitors causes the piezoelectric ceramic sheet to oscillate. It's important to note that only one capacitor can be charged at a time; the other must be de-charged (voltage across the capacitor is 0). This is determined by the current working principle of the piezoelectric ceramic sheet. Therefore, the driving circuit is essentially a circuit that charges and discharges the equivalent capacitance of the piezoelectric ceramic sheet.

[0063] There is a driving circuit on each of the left and right sides, and the two have the same structure. In order to facilitate the explanation of their working principle, only one driving circuit will be explained in the following.

[0064] Reference Figure 8 The area within the dashed box is the equivalent schematic diagram of the drive circuit, with explanations of each point as follows:

[0065] 1. The equivalent capacitance C1 is the equivalent capacitance of the piezoelectric ceramic sheet (refer to...). Figure 6 and Figure 7 ).

[0066] 2. The power supply VCC is a Jacquard-driven DC voltage source.

[0067] 3. Electronic switches K1 and K2 are electronic switches with two states: on and off, which are controlled by the high / low level of the corresponding AND gate.

[0068] 4. Before the electronic switches, there are AND gates U1 and U2 (or other equivalent gates). Each AND gate has two inputs. One input is connected in parallel to a PWM signal source (square wave signal source), and the other is connected to Jacquard control signals S1 and S2. The output is used to control the on / off state of electronic switches K1 and K2. In this circuit, according to common convention, a high level (=1) output from the AND gate represents the switch being on, and a low level (=0) represents the switch being off.

[0069] 5. A PWM signal source is a square wave signal source that outputs a square wave signal with a certain frequency and duty cycle to support the operation of the entire circuit.

[0070] The following explains how the drive circuit works and achieves energy-saving effects. As previously introduced, the driving process of the piezoelectric ceramic sheet is essentially a charging and discharging process of the equivalent capacitor C1. The following describes the working process of the circuit. For ease of explanation, it is assumed that the equivalent capacitor C1 is in a de-energized state at this time.

[0071] Reference Figure 8 ,Figure 9 and Figure 10 The charging process of the equivalent capacitor C1:

[0072] 1: Set the Jacquard control signal S1=1; Jacquard control signal S2=0. At this time, the output of AND gate U1 is the output waveform of the PWM signal source, and the signal input terminal of AND gate U2 is 0. According to the characteristics of AND gate, the output of AND gate U2 is constant at this time and is not affected by the PWM signal source.

[0073] 2: Electronic switch K1 is controlled by AND gate U1. AND gate U1 outputs a PWM signal source signal, and AND gate U1 controls electronic switch K1 to perform conduction and cut-off actions according to the high and low changes of the square wave of the PWM signal source.

[0074] 3: When electronic switch K1 is turned on, freewheeling diode D2 is reverse biased, electronic switch K2 is cut off, and power supply VCC is applied to inductor L1 and equivalent capacitance C1 through electronic switch K1. When electronic switch K1 is turned on, the voltage across inductor L1 equals power supply VCC, and electronic switch K1 itself does not bear the power supply voltage. As the time electronic switch K1 is turned on increases, the current in inductor L1 increases, and the voltage across inductor L1 decreases. When the voltage drop across inductor L1 is not significant, electronic switch K1 enters the cut-off state again under the control of the PWM signal source. Due to the characteristics of inductance, the current direction of inductor L1 remains unchanged, and it continues to charge the equivalent capacitance C1, and freewheeling diode D2 is turned on.

[0075] As electronic switch K1 is continuously turned on and off under the control of the PWM signal source, the voltage across the equivalent capacitor C1 will eventually reach the voltage of the power supply VCC, completing the charging action of the equivalent capacitor C1. During this process, due to the presence of inductor L1, electronic switch K1 has current but no voltage when it is turned on, and voltage but no current when it is turned off. Under the control of the PWM signal source, it operates in a switching state, so the average loss of electronic switch K1 itself is relatively small.

[0076] Reference Figure 9 , Figure 11 and Figure 12 Discharge process of equivalent capacitance C1:

[0077] 1. Set the control signals: Jacquard control signal S1=0, Jacquard control signal S2=1. According to the characteristics of AND gates, the Jacquard control signal S1 at the input terminal of AND gate U1 is 0, so the output of AND gate U1 is constant at this time. The input terminal of AND gate U2 is 1. According to the characteristics of AND gates, the output of AND gate U2 is the output waveform of the PWM signal source, and the control process is the same as described above.

[0078] 2: Since electronic switch K2 is controlled by AND gate U2, electronic switch K2 is currently operating in a switching state under the control of the PWM signal source. Due to the previous charging action of electronic switch K1, point A is the positive terminal of the equivalent capacitor C1 (one end of the equivalent capacitor C1 is point A). The position of point A is referenced... Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown in the attached diagram (reference numeral A), when electronic switch K2 is turned on, the equivalent capacitance C1 discharges through inductor L1. During the discharge process, due to the characteristics of the inductor, when electronic switch K2 is turned on, the charging voltage of the equivalent capacitance C1 is borne by inductor L1, meaning the voltage across inductor L1 is equal to the charging voltage of the equivalent capacitance C1, while the voltage across electronic switch K2 is 0. As the time electronic switch K2 is turned on increases, the current in inductor L1 increases, and the voltage across inductor L1 decreases. When the voltage drop across inductor L1 is not significant, electronic switch K2 enters the cutoff state under the control of the PWM signal source. Due to the characteristics of the inductor, the current direction of inductor L1 remains unchanged, and the current will return to the power supply VCC through freewheeling diode D1. That is, under the combined action of the continuous switching of electronic switch K2, inductor L1, and freewheeling diode D1, the energy previously stored in the equivalent capacitance C1 will be returned to the power supply.

[0079] As electronic switch K2 is continuously turned on and off under the control of the PWM signal source, the voltage across the equivalent capacitor C1 will eventually drop to 0, completing the discharge action of the equivalent capacitor C1. During this process, due to the presence of inductor L1, electronic switch K2 has current but no voltage when it is turned on, and voltage but no current when it is turned off. Under the control of the PWM signal source, it operates in a switching state, so the average loss of electronic switch K2 itself is relatively small.

[0080] Throughout the entire operation, electronic switches K1 and K2 maintained low losses, resulting in significantly improved efficiency and effectively reduced heat generation in the drive circuit.

[0081] Electronic switch K1 can be a switching circuit composed of transistors and MOSFETs. Electronic switch K2 can be a switching circuit composed of transistors and MOSFETs.

[0082] The circuit and charging / discharging principle of the other half of the piezoelectric ceramic sheet are exactly the same as those described above, so they will not be repeated here.

[0083] Example 5, refer to Figure 13The difference between Embodiment 5 and Embodiment 4 is that the driving circuit includes at least one power supply VCC, at least one PWM signal source, at least one Jacquard control signal S1, at least one Jacquard control signal S2, at least one Jacquard control signal S3, at least one Jacquard control signal S4, at least one AND gate U1, at least one AND gate U2, at least one AND gate U3, at least one AND gate U4, at least one electronic switch K1, at least one electronic switch K2, at least one electronic switch K3, at least one electronic switch K4, at least one freewheeling diode D1, at least one freewheeling diode D2, at least one freewheeling diode D3, at least one freewheeling diode D4, and so on. The system consists of at least one inductor L1, at least one inductor L2, at least one equivalent capacitor C1, and at least one equivalent capacitor C2. Equivalent capacitor C1 is the equivalent capacitance of one piezoelectric ceramic element, and equivalent capacitor C2 is the equivalent capacitance of another piezoelectric ceramic element. A PWM signal source is electrically connected to the inputs of AND gate U1 and AND gate U2, respectively. A Jacquard control signal S1 is electrically connected to the input of AND gate U1, and a Jacquard control signal S2 is electrically connected to the input of AND gate U2. The power supply VCC is electrically connected to one end of electronic switch K1 and the cathode of freewheeling diode D1, respectively. The output of AND gate U1 is electrically connected to electronic switch K1. The output terminal of switch 2 is electrically connected to electronic switch K2. The other end of electronic switch K1, one end of electronic switch K2, the anode of freewheeling diode D1, and the cathode of freewheeling diode D2 are all electrically connected to one end of inductor L1. The other end of capacitor L1 is electrically connected to one end of equivalent capacitor C1. The other end of electronic switch K2 and the anode of freewheeling diode D2 are both electrically connected to the other end of equivalent capacitor C1 and grounded. The PWM signal source is electrically connected to the input terminals of AND gate U3 and AND gate U4, respectively. The Jacquard control signal S3 is electrically connected to the input terminal of AND gate U3. The Jacquard control signal S4... The input terminal of AND gate U4 is electrically connected to the input terminal of AND gate U4. One end of electronic switch K3 is electrically connected to the cathode of freewheeling diode D3. The output terminal of AND gate U3 is electrically connected to electronic switch K3. The output terminal of AND gate U4 is electrically connected to electronic switch K4. The other end of electronic switch K3, one end of electronic switch K4, the anode of freewheeling diode D3, and the cathode of freewheeling diode D4 are all electrically connected to one end of inductor L2. The other end of capacitor L2 is electrically connected to one end of equivalent capacitance C2. The other end of electronic switch K4 and the anode of freewheeling diode D4 are both electrically connected to the other end of equivalent capacitance C2 and are grounded.

[0084] During the charging and discharging process, electronic switches K1, K2, K3 and K4 maintain low losses, resulting in significantly improved efficiency and effectively reducing the heat generation of the drive circuit.

[0085] Reference Figure 13The charging process of the equivalent capacitor C2:

[0086] 1: Set the control signal Jacquard control signal S3=1; Jacquard control signal S2=0. At this time, the output of AND gate U3 is the output waveform of the PWM signal source, and the signal input terminal of AND gate U4 is 0. According to the characteristics of AND gate, the output of AND gate U4 is constant at this time and is not affected by the PWM signal source.

[0087] 2: Electronic switch K3 is controlled by AND gate U3. AND gate U3 outputs a PWM signal source signal, and AND gate U3 controls electronic switch K3 to perform conduction and cut-off actions according to the high and low changes of the square wave of the PWM signal source.

[0088] 3: When electronic switch K3 is turned on, freewheeling diode D4 is reverse biased, electronic switch K4 is cut off, and power supply VCC is applied to inductor L2 and equivalent capacitance C2 through electronic switch K3. When electronic switch K3 is turned on, the voltage across inductor L2 equals power supply VCC, and electronic switch K3 itself does not bear the power supply voltage. As the time electronic switch K3 is turned on increases, the current in inductor L2 increases, and the voltage across inductor L2 decreases. When the voltage drop across inductor L2 is not significant, electronic switch K3 enters the cut-off state again under the control of the PWM signal source. Due to the characteristics of inductance, the current direction of inductor L2 remains unchanged, and it continues to charge the equivalent capacitance C2, and freewheeling diode D4 is turned on.

[0089] As electronic switch K3 is continuously turned on and off under the control of the PWM signal source, the voltage across the equivalent capacitor C2 will eventually reach the voltage of the power supply VCC, completing the charging action of the equivalent capacitor C2. During this process, due to the presence of inductor L2, electronic switch K3 has current but no voltage when it is turned on, and voltage but no current when it is turned off. Under the control of the PWM signal source, it operates in a switching state, so the average loss of electronic switch K3 itself is relatively small.

[0090] Reference Figure 13 Discharge process of equivalent capacitance C2:

[0091] 1. Set the control signals: Jacquard control signal S3=0, Jacquard control signal S2=1. According to the characteristics of AND gates, the Jacquard control signal S3 at the input terminal of AND gate U3 is 0, so the output of AND gate U3 is constant at this time. The input terminal of AND gate U4 is 1. According to the characteristics of AND gates, the output of AND gate U4 is the output waveform of the PWM signal source, and the control process is the same as described above.

[0092] 2: Since electronic switch K4 is controlled by AND gate U4, it operates in a switching state under the control of the PWM signal source. Due to the charging action of electronic switch K3, when electronic switch K4 is turned on, the equivalent capacitor C2 will discharge through inductor L2. During the discharge process, due to the characteristics of the inductor, when electronic switch K4 is turned on, the charging voltage of the equivalent capacitor C2 will be borne by inductor L2, that is, the voltage across inductor L2 is equal to the charging voltage of the equivalent capacitor C2, while the voltage across electronic switch K4 is 0. As the conduction time of electronic switch K4 increases, the current in inductor L2 increases, and the voltage at the terminal of inductor L2 decreases. When the voltage drop at the terminal of inductor L2 is not significant, electronic switch K4 enters the cut-off state again under the control of the PWM signal source. Due to the characteristics of inductance, the current direction of inductor L2 remains unchanged, and the current will return to the power supply VCC through the freewheeling diode D3. That is, under the combined action of the continuous switching of electronic switch K4, inductor L2, and freewheeling diode D3, the energy previously stored in the equivalent capacitor C2 will be returned to the power supply.

[0093] As electronic switch K4 is continuously turned on and off under the control of the PWM signal source, the voltage across the equivalent capacitor C2 will eventually drop to 0, completing the discharge action of the equivalent capacitor C2. During this process, due to the presence of inductor L2, electronic switch K4 has current but no voltage when it is turned on, and voltage but no current when it is turned off. Under the control of the PWM signal source, it operates in a switching state, so the average loss of electronic switch K4 itself is relatively small.

[0094] Throughout the entire operation, electronic switches K3 and K4 maintained low losses, resulting in significantly improved efficiency and effectively reduced heat generation in the drive circuit.

[0095] The circuit and charging / discharging working principle of the other half of the piezoelectric ceramic sheet are exactly the same as those in Example 1, so they will not be described again.

[0096] Electronic switch K3 can be a switching circuit composed of transistors and MOSFETs. Electronic switch K4 can be a switching circuit composed of transistors and MOSFETs.

[0097] Other structures are similar to those in Embodiment 4, and will not be described in detail here.

[0098] Example 6, refer to Figure 4 The difference between this sixth embodiment and the first embodiment is that the execution unit 14 includes a plurality of first piezoelectric Jacquard elements 16, a plurality of nth piezoelectric Jacquard elements 15, and a plurality of (n+1)th piezoelectric Jacquard elements 300. n is a positive integer greater than 2.

[0099] In this embodiment, when n is 2, the nth piezoelectric Jacquard element is the second layer piezoelectric Jacquard element, the (n+1)th piezoelectric Jacquard element is the third layer piezoelectric Jacquard element, and the first piezoelectric Jacquard element 16 is the first layer piezoelectric Jacquard element.

[0100] Reference Figure 4 The first piezoelectric Jacquard element 16, the nth piezoelectric Jacquard element 15, and the (n+1)th piezoelectric Jacquard element 300 are stacked on the mounting part 12 in a bottom-to-top order.

[0101] Reference Figure 1 and Figure 4 When the first guide needle 232 is arranged in an odd number of needle positions, the nth guide needle 240 is arranged in either an even number of needle positions or an odd number of needle positions. When the first guide needle 232 is arranged in an even number of needle positions, the nth guide needle 240 is arranged in either an even number of needle positions or an odd number of needle positions.

[0102] Reference Figure 1 and Figure 4 Another part of the (n+1)th piezoelectric Jacquard element has at least one (n+1)th Jacquard needle unit that can swing independently left and right. The (n+1)th Jacquard needle unit has an (n+1)th guide needle 303. When the first guide needle 232 is arranged in an odd number of needle positions, the (n+1)th guide needle 303 is arranged in an even number of needle positions or an odd number of needle positions.

[0103] Reference Figure 1 and Figure 4 By mounting a portion of the (n+1)th piezoelectric Jacquard element 300 on the mounting part 12, the first piezoelectric Jacquard element 16, the nth piezoelectric Jacquard element 15, and the (n+1)th piezoelectric Jacquard element 300 are integrated on a base 11, thereby improving the integration of the Jacquard jacquard device. When the Jacquard jacquard device is installed on a warp knitting machine, it can save the weight of at least one row of base 11, save the space occupied by at least one row of base 11, and save the cost of at least one row of base 11.

[0104] Reference Figure 1 , Figure 2 and Figure 3By setting the first piezoelectric Jacquard element 16, the nth piezoelectric Jacquard element 15, and the (n+1)th piezoelectric Jacquard element 300 in a bottom-to-top order and stacked sequentially on the mounting part 12, only one guide device 1, one comb mounting part 111, and one base 11 are used to install the first piezoelectric Jacquard element 16, the nth piezoelectric Jacquard element 15, and the (n+1)th piezoelectric Jacquard element 300, thereby forming n+1 horizontal rows of Jacquard combs. Therefore, the weight of at least one guide device 1 is saved, the cost of at least one guide device 1 is saved, and the space occupied by at least one guide device 1 is saved.

[0105] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5 The base 11 has a plurality of stops 500 on its front part. The stops 500 are used to limit the swing position of the guide needles. A reinforcing rib 501 is provided on the top of the stops 500. The top of the stops 500 is connected to the reinforcing rib 501 to form an inseparable whole. The bottom of the baffle is located on the front part of the base 11 to form an inseparable whole. The reinforcing rib 501 is provided to increase the hardness of the stops 500 so that the stops 500 can withstand the impact force after the guide needles swing. The guide needles are the first guide needle 232, the nth guide needle 240 and the (n+1)th guide needle 303.

[0106] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5 The first piezoelectric Jacquard element 16, the nth piezoelectric Jacquard element 15, and the (n+1)th piezoelectric Jacquard element 300 can be either detachably installed or non-detachably installed.

[0107] To further explain, in this embodiment, n is a positive integer greater than 2. For example, n can be 2, 3, 4, 5, 6, 7, 8, 9, 10, or even more. If the installation space inside the warp knitting machine is large enough, the number of piezoelectric Jacquard elements can be increased. For instance, when n is 2, the nth piezoelectric Jacquard element is the 2nd piezoelectric Jacquard element, the (n+1)th piezoelectric Jacquard element is the 3rd piezoelectric Jacquard element, when n is 3, the nth piezoelectric Jacquard element is the 3rd piezoelectric Jacquard element, when n is 4, the nth piezoelectric Jacquard element is the 4th piezoelectric Jacquard element, and so on. Specifically, n can be considered as the number of layers stacked on the bottom base 11 in a bottom-to-top order. The number of layers of piezoelectric Jacquard elements is as follows: the first piezoelectric Jacquard element 16 is the first (layer) piezoelectric Jacquard element, the second piezoelectric Jacquard element 15 is the second (layer) piezoelectric Jacquard element, when n is 3, it is the third (layer) piezoelectric Jacquard element, when n is 4, it is the fourth (layer) piezoelectric Jacquard element, when n is 5, it is the fifth (layer) piezoelectric Jacquard element, when n is 6, when n is 7, and so on, up to more layers of piezoelectric Jacquard elements. Specifically, multiple layers of piezoelectric Jacquard elements are stacked sequentially from bottom to top on a base 11. Each layer of piezoelectric Jacquard elements has its own independently oscillating yarn guide needle. Figure 1 , Figure 3 and Figure 4 Only a three-layer piezoelectric Jacquard element is shown in the drawing. Figure 2 Only a two-layer piezoelectric Jacquard element is shown in the figure, but it is not limited to two- or three-layer piezoelectric Jacquard elements. Those skilled in the art can... Figures 1-7 Based on this, by stacking them sequentially from bottom to top, a jacquard device with multiple layers of piezoelectric jacquard elements stacked on a base 11 is obtained.

[0108] Reference Figure 1 That is, two or more rows (layers) of piezoelectric ceramic sheets are distributed on the same base 11. If the jacquard with two layers of piezoelectric ceramic sheets is in odd and even coexistence mode, then it only needs to be installed on one comb mounting part 111 to complete the single jacquard application. If it is only in odd or even mode, that is, both layers of piezoelectric ceramic sheets on this jacquard are in odd or even rows, then only two comb mounting parts 111 can form a double jacquard application. Based on the double-layer jacquard, if a single jacquard has 3 rows (3 layers), it still only needs to be installed on two comb mounting parts 111 to form a specific triple jacquard application, and so on, to form a multi-layer jacquard.

[0109] Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0110] 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 Jacquard knitting device, comprising a base, a plurality of mounting portions arranged on the base, and at least one actuating portion disposed on the base, the actuating portion comprising a plurality of first piezoelectric Jacquard elements, a portion of each first piezoelectric Jacquard element being mounted on the mounting portion, and another portion of each first piezoelectric Jacquard element having a first Jacquard needle unit, the first Jacquard needle unit independently guiding the jacquard yarn by swinging left and right, characterized in that: The actuator further includes a plurality of nth piezoelectric Jacquard elements, a portion of which is mounted on the mounting portion, and another portion of which has an nth Jacquard needle unit. The nth Jacquard needle unit independently guides the jacquard yarn by swinging left and right. The first and nth piezoelectric Jacquard elements are mounted on the mounting portion in a bottom-to-top order and stacked sequentially. The front of the base has a plurality of stops, which limit the swing position of the guide needles. A reinforcing rib is provided on the top of each stop, and the top of the stop connects to the reinforcing rib to form an inseparable unit. The bottom of the baffle is located on the front of the base, forming an inseparable unit. The reinforcing rib is provided to increase the rigidity of the stops, enabling them to withstand the impact force after the guide needles swing. The guide needles are designated as the first guide needle, the second guide needle, and the nth guide needle. The first, second, and nth piezoelectric Jacquard elements can be detachably or non-detachably mounted. The Jacquard actuator includes at least one connector and at least one drive circuit unit. The output terminal of the drive circuit unit is electrically connected to the input terminal of the connector. The output terminal of the connector is pluggable onto the power terminal of the actuator. The drive circuit unit includes a drive circuit board and a plurality of drive circuits disposed on the drive circuit board. Each set of drive circuits is used to drive the corresponding first Jacquard pin unit, second Jacquard pin unit, and nth Jacquard pin unit to oscillate, respectively. The driver circuit board includes a first printed circuit board and a second printed circuit board. The first printed circuit board has a driver circuit. The output terminal of the first printed circuit board and the input terminal of the second printed circuit board are electrically connected together by soldering to form an inseparable unit. The output terminal of the second printed circuit board and the input terminal of the connector are electrically connected together by soldering to form an inseparable unit. The connector includes a housing, a plurality of slots disposed within the housing, a plurality of pads disposed within the slots, and a plurality of conductive fourth conductive plates. Each pad has a fourth conductive tab. The slot extends from the front of the housing, through the interior of the housing, and finally to the rear of the housing. The rear end of the fourth conductive tab is located on the rear of the housing, and the front end of the fourth conductive tab extends into the slot. The input terminal of the fourth conductive plate is electrically connected to the output terminal of the second printed circuit board by soldering.

2. The Jacquard apparatus as described in claim 1, characterized in that: The value of n is a positive integer greater than 2.

3. The Jacquard fabric device as described in claim 1, characterized in that: The actuator further includes a plurality of (n+1)th piezoelectric Jacquard elements, a portion of which is mounted on the mounting portion, and another portion of which has an (n+1)th Jacquard needle unit. The (n+1)th Jacquard needle unit independently realizes jacquard yarn guiding by swinging left and right. The first piezoelectric Jacquard element, the nth piezoelectric Jacquard element, and the (n+1)th piezoelectric Jacquard element are mounted on the mounting portion in a bottom-to-top order and stacked sequentially.

4. The Jacquard apparatus as described in claim 3, characterized in that: The first Jacquard needle unit has a first guide needle, and the nth Jacquard needle unit has an nth guide needle. When n is 2, when the first guide needle is arranged in an odd number of needle positions, the second guide needle is arranged in an even number of needle positions or an odd number of needle positions. When the first guide needle is arranged in an even number of needle positions, the second guide needle is arranged in an even number of needle positions or an odd number of needle positions.

5. The Jacquard apparatus as described in claim 4, characterized in that: Both the first guide needle and the nth guide needle are located at the front of the base, with the nth guide needle positioned above the first guide needle.

6. The Jacquard apparatus as described in claim 4, characterized in that: The (n+1)th Jacquard needle unit has an (n+1)th guide needle. When the nth guide needle is arranged in an odd number of needle positions, the (n+1)th guide needle is arranged in an even number of needle positions or an odd number of needle positions.

7. The Jacquard apparatus as described in claim 6, characterized in that: The (n+1)th guide needle is located above the nth guide needle.

8. The Jacquard apparatus as described in claim 4, characterized in that: It also includes at least one Jacquard driver, which drives the actuator to swing left and right to independently realize jacquard yarn guiding. The Jacquard driver includes at least one power supply cable unit, a part of which is detachably mounted on the base. The output end of the power supply cable unit is pluggably mounted on the power terminal of the actuator.

9. The Jacquard apparatus as described in claim 4, characterized in that: It also includes at least one Jacquard driver, which drives the actuator to swing left and right to independently realize jacquard yarn guiding. The Jacquard driver includes at least one connector and at least one drive circuit unit. The output end of the drive circuit unit is electrically connected to the input end of the connector. The output end of the connector is pluggably mounted on the power terminal of the actuator.

10. A warp knitting machine, characterized in that: It includes a plurality of Jacquard devices, wherein the Jacquard device is the Jacquard device according to any one of claims 1 to 3.

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