A textile machine and a piezoelectric ceramic jacquard device

Abstract

A textile machine and a multi-station piezoelectric ceramic jacquard device include multiple yarn guide needles, multiple first bending actuators for driving the corresponding yarn guide needles to oscillate, multiple baffle units adapted to the yarn guide needles, and multiple second bending actuators for driving the corresponding baffle units to oscillate. In this invention, by configuring the baffle units to limit the corresponding yarn guide needles, the corresponding yarn guide needles have at least three stations for jacquard yarn guiding, thereby increasing the number of stations during the oscillation process of the yarn guide needles, resulting in a three-station yarn guide needle that can stop oscillating at the middle position.

Description

Technical Field

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

[0002] With the continuous improvement of warp knitting machine application technology, a three-station jacquard warp knitting jacquard product weaving method has emerged in the textile technology field. This three-station jacquard, with one more station than the conventional two-station jacquard, allows for a richer variety of patterns, greatly enhancing the economic value of the fabric. However, due to the additional station, the drive circuit control of the three-station jacquard is more complex than that of the two-station jacquard.

[0003] Chinese invention patent (application number: 202110903323.1, publication number: CN113789605B) discloses a method for weaving warp-knitted jacquard products using a three-station jacquard.

[0004] Chinese invention patent (application number: 201010587409.X, publication number: CN102400281B) discloses that this is a two-station jacquard. Because the guide needle of the two-station jacquard only has two stations, it cannot stop swinging in the middle position between the two stations, thus making it difficult to meet the requirements of the warp knitting jacquard product weaving method of the three-station jacquard. Summary of the Invention

[0005] This invention provides a textile machinery and a piezoelectric ceramic Jacquard device, the main purpose of which is to overcome the defect that the existing Jacquard yarn guide needles only have two working positions and are difficult to stop oscillating in the middle position.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A textile machine and a piezoelectric ceramic Jacquard device are disclosed. The textile machine has at least one piezoelectric ceramic Jacquard device, which includes multiple yarn guide needles, multiple first bending actuators for driving the corresponding yarn guide needles to swing, multiple baffle units adapted to the yarn guide needles, and multiple second bending actuators for driving the corresponding baffle units to swing. The first bending actuator has at least two opposing first piezoelectric ceramic materials. When the first piezoelectric ceramic materials are energized, they drive the corresponding yarn guide needles to swing. The second bending actuator has at least two opposing second piezoelectric ceramic materials. When the second piezoelectric ceramic materials are energized, they drive the corresponding baffle units to swing. When the energizing voltage is the same, the torque of the second piezoelectric ceramic materials during swing is greater than that of the first piezoelectric ceramic materials during swing. The baffle units are configured to limit the corresponding yarn guide needles, so that the corresponding yarn guide needles have at least three positions for jacquard yarn guiding.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0009] The present invention has a simple structure and strong practicality. By setting the baffle unit to limit the corresponding yarn guide needle, the corresponding yarn guide needle has at least three working positions for jacquard yarn guiding, thereby realizing that the yarn guide needle has an additional working position during the swinging process, so that the yarn guide needle has three working positions, and the yarn guide needle can stop swinging at the middle position. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the yarn guide needle in the first working position.

[0011] Figure 2 This is a schematic diagram of the yarn guide needle in the second position.

[0012] Figure 3 This is a schematic diagram of the yarn guide needle in the third position.

[0013] Figure 4 This is a schematic diagram of the three working positions of the yarn guide needle.

[0014] Figure 5 This is a schematic diagram of the baffle unit.

[0015] Figure 6 This is a schematic diagram of a piezoelectric ceramic jacquard device. Detailed Implementation

[0016] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0017] Example 1, refer to Figure 4 , Figure 5 and Figure 6 A textile machine and a piezoelectric ceramic Jacquard device, the textile machine having at least one piezoelectric ceramic Jacquard device, the piezoelectric ceramic Jacquard device including multiple yarn guide needles 21, multiple first bending actuators 11 for driving the corresponding yarn guide needles 21 to swing, multiple baffle units 22 adapted to the yarn guide needles 21, multiple second bending actuators 12 for driving the corresponding baffle units 22 to swing, at least one driver 17 and at least one drive circuit board 19, multiple first drive circuits disposed on the drive circuit board 19 and multiple second drive circuits disposed on the drive circuit board 19.

[0018] Reference Figure 4 , Figure 5 and Figure 6 The first bending actuator 11 has at least two opposing first piezoelectric ceramic materials 100. When the first piezoelectric ceramic materials 100 are energized, they drive the corresponding yarn guide needle 21 to swing. The second bending actuator has at least two opposing second piezoelectric ceramic materials 200. When the second piezoelectric ceramic materials 200 are energized, they drive the corresponding baffle unit 22 to swing. When the energizing voltage is the same, the torque of the second piezoelectric ceramic material 200 when it swings is greater than the torque of the first piezoelectric ceramic material 100 when it swings. The baffle unit 22 is configured to limit the corresponding yarn guide needle 21, so that the corresponding yarn guide needle 21 has at least three working positions for jacquard yarn guiding.

[0019] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 When the second piezoelectric ceramic material 200 is energized, it drives the baffle unit 22 to switch between the first position 23 and the second position 24 respectively. When a part of the yarn guide needle 21 abuts against a part of the baffle unit 22, the baffle unit 22 drives the corresponding yarn guide needle 21 to switch positions.

[0020] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The three workstations include a first workstation 31, a second workstation 32, and a third workstation 33. The second workstation 32 is located in the middle between the first workstation 31 and the third workstation 33. The first workstation 31 and the third workstation 33 are two stitch lengths apart. The first workstation 31 and the second workstation 32 are one stitch length apart. The second workstation 32 and the third workstation 33 are one stitch length apart. The first position 23 is located at the third workstation 33, and the second position 24 is located at the second workstation 32.

[0021] Reference Figure 6The driver 17 includes at least one power supply device, which outputs at least one first driving voltage and at least one second driving voltage. When the first piezoelectric ceramic material 100 is energized, the first driving voltage is configured to be applied to the terminal of the first piezoelectric ceramic material 100. When the second piezoelectric ceramic material 200 is energized, the second driving voltage is configured to be applied to the terminal of the second piezoelectric ceramic material 200.

[0022] Reference Figure 1 , Figure 2 and Figure 6 The first driving circuit is used to drive the first piezoelectric ceramic material 100 to swing, and the second driving circuit is used to drive the second piezoelectric ceramic material 200 to swing. The input terminal of the first driving circuit is electrically connected to the output terminal of the transformer module, and the output terminal of the first driving circuit is electrically connected to the power receiving terminal of the first piezoelectric ceramic material 100. The input terminal of the second driving circuit is electrically connected to the output terminal of the transformer module, and the output terminal of the second driving circuit is electrically connected to the power receiving terminal of the second piezoelectric ceramic material 200.

[0023] Reference Figure 5 In this embodiment, the first piezoelectric ceramic material 100 specifically includes a first piezoelectric ceramic sheet 38 and a second piezoelectric ceramic sheet 39, and the second piezoelectric ceramic material 200 includes a third piezoelectric ceramic sheet 45 and a fourth piezoelectric ceramic sheet 46.

[0024] Reference Figure 5 and Figure 6 The first bending actuator 11 includes a first piezoelectric ceramic sheet 38, a second piezoelectric ceramic sheet 39, a first substrate 40 sandwiched between the first piezoelectric ceramic sheet 38 and the second piezoelectric ceramic sheet 39, and two first conductive units 44 disposed on the tail of the first substrate 40.

[0025] Reference Figure 5 and Figure 6 The second bending actuator 12 includes a third piezoelectric ceramic sheet 45, a fourth piezoelectric ceramic sheet 46, a second substrate 42 sandwiched between the third piezoelectric ceramic sheet 45 and the fourth piezoelectric ceramic sheet 46, and two second conductive units 43 disposed on the tail of the second substrate 42.

[0026] Reference Figure 5 and Figure 6 The first driving voltage is applied to the first piezoelectric ceramic sheet 38 or the second piezoelectric ceramic sheet 39 through the first conductive unit 44, and the second driving voltage is applied to the third piezoelectric ceramic sheet 45 or the fourth piezoelectric ceramic sheet 46 through the second conductive unit 43.

[0027] Reference Figure 6The first piezoelectric ceramic material 100 has a specific electrical terminal, namely the first conductive unit 44, and the second piezoelectric ceramic material 200 has a specific electrical terminal, namely the second conductive unit 43.

[0028] Reference Figure 5 and Figure 6 In this embodiment, the first conductive unit 44 specifically includes a first conductive copper sheet disposed on one side of the first substrate 40 and a second conductive copper sheet disposed on the other side of the first substrate 40. The first conductive copper sheet is electrically connected to the first piezoelectric ceramic sheet 38, and the second conductive copper sheet is electrically connected to the second piezoelectric ceramic sheet 39. The second conductive unit 43 includes a third conductive copper sheet disposed on one side of the second substrate 42 and a fourth conductive copper sheet disposed on the other side of the second substrate 42. The third conductive copper sheet is electrically connected to the third piezoelectric ceramic sheet 45, and the fourth conductive copper sheet is electrically connected to the fourth piezoelectric ceramic sheet 46. Both the first substrate 40 and the second substrate 42 can be glass fiber sheets, which can also be called fiberglass sheets or fiberglass steel sheets. Fiberglass sheets are products made by pre-impregnating glass fiber yarn with styrene-based polyester resin and then heating, curing, and pultruding.

[0029] Reference Figure 5 and Figure 6 When the baffle unit 22 drives the guide needle 21 to switch from the first position 23 to the second position 24, a portion of the guide needle 21 abuts against a portion of the corresponding baffle unit 22. Both the first position 23 and the second position 24 are located within the swing space 68 of the guide needle 21. The second position 24 is located at the midpoint between the first needle and the last needle of the guide needle 21. The distance between the first needle and the last needle is twice the needle pitch.

[0030] Reference Figure 1 and Figure 2 When the second piezoelectric ceramic material 200 of the second bending actuator 12 is charged by the second driving voltage, the second piezoelectric ceramic material 200 drives the baffle unit 22 to switch between the first position 23 and the second position 24. When the first piezoelectric ceramic material 100 of the first bending actuator 11 is charged by the first driving voltage, the first piezoelectric ceramic material 100 drives the yarn guide needle 21 to swing.

[0031] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 In this embodiment, by setting the baffle unit 22 to limit the corresponding yarn guide needle 21, the corresponding yarn guide needle 21 has at least three working positions for jacquard yarn guiding, thereby realizing that the yarn guide needle 21 adds a working position during the swinging process, so that the yarn guide needle 21 has three working positions, and the yarn guide needle 21 can stop swinging at the middle position.

[0032] Example 2, refer to Figure 5 The difference between this second embodiment and the first embodiment is that the first piezoelectric ceramic material 100 and the second piezoelectric ceramic material 200 are made of the same piezoelectric ceramic material, the thickness of the second piezoelectric ceramic material 200 is greater than the thickness of the first piezoelectric ceramic material 100, and when the voltage is the same, the torque of the second piezoelectric ceramic material 200 when it swings is greater than the torque of the first piezoelectric ceramic material 100 when it swings.

[0033] Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0034] Example 3, refer to Figure 5 The difference between this embodiment 3 and embodiment 1 is that the first piezoelectric ceramic material 100 and the second piezoelectric ceramic material 200 are made of the same piezoelectric ceramic material, the length of the second piezoelectric ceramic material 200 is greater than the length of the first piezoelectric ceramic material 100, and when the voltage is the same, the torque of the second piezoelectric ceramic material 200 when it swings is greater than the torque of the first piezoelectric ceramic material 100 when it swings.

[0035] Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0036] Example 4, refer to Figure 1 The difference between this embodiment four and embodiment one is that the textile machinery includes a main controller and at least one Jacquard comb. The main controller sends at least two bit stream data to the Jacquard comb. These bit stream data are divided into two groups. One group of bit stream data is used to control the swing of a corresponding guide needle 21, and the other group of bit stream data is used to control the swing of a corresponding baffle unit 22.

[0037] Reference Figure 1 , Figure 2 and Figure 3The drive circuit board 19 is equipped with multiple first drive circuits, multiple second drive circuits, multiple third drive circuits, and multiple fourth drive circuits. The first drive circuit drives the corresponding first piezoelectric ceramic sheet 38 to swing, the second drive circuit drives the corresponding second piezoelectric ceramic sheet 39 to swing, the third drive circuit drives the corresponding third piezoelectric ceramic sheet 45 to swing, and the fourth drive circuit drives the corresponding fourth piezoelectric ceramic sheet 46 to swing. The main controller transmits one bit of data to the first drive circuit through the power supply device. The first drive circuit drives the first piezoelectric ceramic sheet 38 to swing according to the obtained bit data. A first voltage is applied to the first piezoelectric ceramic sheet 38 through the first drive circuit. The main controller... The power supply device transmits one bit of data to the second drive circuit. The second drive circuit drives the second piezoelectric ceramic plate 39 to swing according to the obtained bit data. The second voltage is applied to the second piezoelectric ceramic plate 39 through the second drive circuit. The main controller transmits one bit of data to the third drive circuit through the power supply device. The third drive circuit drives the third piezoelectric ceramic plate 45 to swing according to the obtained bit data. The third voltage is applied to the third piezoelectric ceramic plate 45 through the third drive circuit. The main controller transmits one bit of data to the fourth drive circuit through the power supply device. The fourth drive circuit drives the fourth piezoelectric ceramic plate 46 to swing according to the obtained bit data. The fourth voltage is applied to the fourth piezoelectric ceramic plate 46 through the fourth drive circuit.

[0038] The circuit structures of the first driving circuit, the second driving circuit, the third driving circuit, and the fourth driving circuit can be referred to Chinese Utility Model Patent (Application No.: 202123378011.8, Publication No.: CN218124570U) or other existing piezoelectric ceramic driving circuits in this field, and will not be described in detail here.

[0039] Reference Figure 6 A connector 20 can be provided on the front of the drive circuit board 19, which is electrically connected to the first conductive unit 44 and the second conductive unit 43 respectively. The connection can be made by plugging and unplugging or by soldering them together. The drive circuit board 19 can be powered by side access or by a conductive spring pin, which can also be called a push pin.

[0040] Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0041] Example 5, refer to Figure 1 , Figure 2 and Figure 3The difference between this fifth embodiment and the first embodiment is that, in the piezoelectric ceramic jacquard device, since the yarn guide needle 21 has three working states, at least two bits of data are needed for control, i.e., there are two input terminals. One input terminal controls the ceramic plates of the yarn guide needle 21 (first piezoelectric ceramic plate 38 and second piezoelectric ceramic plate 39), and the other input terminal controls the ceramic plates of the baffle unit 22 (third piezoelectric ceramic plate 45 and fourth piezoelectric ceramic plate 46). (Refer to...) Figure 1 As shown, in Figure 1 Specifically, Ca is the equivalent capacitance of the first piezoelectric ceramic sheet 38, Cb is the equivalent capacitance of the second piezoelectric ceramic sheet 39, Cc is the equivalent capacitance of the third piezoelectric ceramic sheet 45, and Cd is the equivalent capacitance of the fourth ceramic sheet. Each piezoelectric ceramic sheet still consists of two sets of identical driving circuits.

[0042] Reference Figure 1 and Figure 2 The operating states of the first bending actuator 11 and the second bending actuator 12 are shown in the table below:

[0043] Signal Input 1 Input terminal of drive circuit a input terminal of drive circuit b piezoelectric ceramic plate status of yarn guide needle 21 0 0 (charging) 1 (Discharge) swing to the left 1 1 (Discharge) 0 (charging) swing to the right Signal Input 2 Input terminal of drive circuit a input terminal of drive circuit b piezoelectric ceramic sheet state of baffle unit 22 0 0 (charging) 1 (Discharge) swing to the left 1 1 (Discharge) 0 (charging) swing to the right

[0044] Reference Figure 1 and Figure 2 According to the three-station working principle, the required oscillation directions of the piezoelectric ceramic plates of the yarn guide needle 21 and the baffle unit 22 at the three stations are shown in the table below:

[0045] Based on the above tables, the signal input data corresponding to the three workstations are shown in the following table:

[0046] Needle ceramic plate direction baffle ceramic plate direction Signal Input 1 Signal Input 2 Left workstation left You can go left or right. 0 0 or 1 are both acceptable intermediate workstation To the right left 1 0 Right workstation To the right To the right 1 1

[0047] Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0048] Example 6, refer to Figure 6 The difference between this sixth embodiment and the first embodiment is that, in this embodiment, when the energizing voltages are different, the voltage value of the first driving voltage is less than the voltage value of the second driving voltage. The driver 17 also includes at least one transformer module, which is used to increase or decrease the voltage output by the power supply device. The first driving voltage is converted into a preset voltage value by the transformer module, and the second driving voltage is converted into a preset voltage value by the transformer module.

[0049] Reference Figure 1 , Figure 2 and Figure 3The first driving voltage ranges from 0 to 200V. For example, in this embodiment, the first driving voltage can be 150V and the second driving voltage can be 200V, so that the charging voltage of the first piezoelectric ceramic material 100 is 150V and the discharging voltage of the first piezoelectric ceramic material 100 is 0V, the charging voltage of the second piezoelectric ceramic material 200 is 200V and the discharging voltage of the second piezoelectric ceramic material 200 is 0V. Of course, more different first driving voltages and second driving voltages can be set, including but not limited to 150V and 200V. More values ​​can be derived by analogy based on the fact that when the baffle unit 22 drives the guide needle 21 to switch from the first position 23 to the second position 24, the voltage value of the first driving voltage is less than the voltage value of the second driving voltage. This will not be elaborated here.

[0050] Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0051] Example 7 differs from Example 6 in that: the first voltage is converted to a preset voltage value through a transformer module; the second voltage is converted to a preset voltage value through a transformer module; the third voltage is converted to a preset voltage value through a transformer module; and the fourth voltage is converted to a preset voltage value through a transformer module.

[0052] The transformer module can be a Zener diode or a Zener resistor, or it can be a boost circuit.

[0053] The following explanation uses a Zener diode as an example:

[0054] When the power supply only outputs a 200V voltage, four Zener diodes can be used. These diodes are electrically connected to a piezoelectric ceramic plate via a driver circuit. The Zener diodes step down the voltage, and by changing their voltage values, the desired output voltage can be obtained. For example, if the four Zener diodes have voltage regulation values ​​of 10V, 20V, 30V, and 40V, and the supply voltage is 200V, then four different output voltages of 190V, 180V, 170V, and 160V can be obtained. By changing the Zener diodes' voltage regulation values, the output voltage can be changed, achieving the effect of converting the first, second, third, and fourth voltage values ​​to the preset value via a transformer module.

[0055] Other structures are similar to those in Embodiment Six, and will not be described in detail here.

[0056] Example 8 differs from Example 6 in that, in this example, when the energizing voltage is different, the first driving voltage includes a first voltage and a second voltage, and the second driving voltage includes a third voltage and a fourth voltage.

[0057] Reference Figure 5 and Figure 6 When the corresponding first piezoelectric ceramic sheet 38 is in a charging state, a first voltage is applied to the corresponding first piezoelectric ceramic sheet 38 through the corresponding first conductive unit 44, causing the first piezoelectric ceramic sheet 38 to drive the corresponding yarn guide needle 21 to swing towards the corresponding baffle unit 22. When the corresponding third piezoelectric ceramic sheet 45 is in a charging state, a third voltage is applied to the corresponding third piezoelectric ceramic sheet 45 through the corresponding second conductive unit 43, causing the third piezoelectric ceramic sheet 45 to drive the corresponding baffle unit 22 to swing towards the corresponding yarn guide needle 21. The first piezoelectric ceramic sheet 38, a second piezoelectric ceramic sheet 39, and a first substrate 40 constitute the first piezoelectric ceramic material 100, and the third piezoelectric ceramic sheet 45, a fourth piezoelectric ceramic sheet 46, and a second substrate 42 constitute the second piezoelectric ceramic material 200.

[0058] Reference Figure 1 and Figure 5 When the corresponding second piezoelectric ceramic sheet 39 is in a charging state, the second voltage is applied to the corresponding second piezoelectric ceramic sheet 39 through the corresponding first conductive unit 44, causing the second piezoelectric ceramic sheet 39 to drive the corresponding guide needle 21 to swing toward the first work station 31. When the corresponding fourth piezoelectric ceramic sheet 46 is in a charging state, the fourth voltage is applied to the corresponding fourth piezoelectric ceramic sheet 46 through the corresponding second conductive unit 43, causing the fourth piezoelectric ceramic sheet 46 to drive the corresponding baffle unit 22 to swing toward the first position 23.

[0059] Reference Figure 1 , Figure 2 and Figure 5 When the first piezoelectric ceramic sheet 38 is in a charging state, the second piezoelectric ceramic sheet 39 is in a discharging state; when the first piezoelectric ceramic sheet 38 is in a discharging state, the second piezoelectric ceramic sheet 39 is in a charging state; when the third piezoelectric ceramic sheet 45 is in a discharging state, the fourth piezoelectric ceramic sheet 46 is in a charging state; when the third piezoelectric ceramic sheet 45 is in a charging state, the fourth piezoelectric ceramic sheet 46 is in a discharging state. The voltage range during charging is 40-200V, or it can be 100V-200V or 150V-190V. The voltage is 0V during discharging.

[0060] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5By setting the first driving voltage value to be less than the second driving voltage value when the baffle unit 22 drives the yarn guide needle 21 to switch from the first position 23 to the second position 24, the yarn guide needle 21 adds a station during the swing process, thereby making the yarn guide needle 21 have three stations, so that the yarn guide needle 21 can stop swinging at the middle position.

[0061] Other structures are similar to those in Embodiment Six, and will not be described in detail here.

[0062] Example 9, referring to Figure 1 and Figure 2 The difference between Embodiment Nine and Embodiment Six is ​​that, in this embodiment, when the applied voltage is different, the power supply device outputs four different voltages, which can correspond to the first voltage, the second voltage, the third voltage, and the fourth voltage, respectively. The first voltage is applied to the first piezoelectric ceramic sheet 38 through the first driving circuit, the second voltage is applied to the second piezoelectric ceramic sheet 39 through the second driving circuit, the third voltage is applied to the first piezoelectric ceramic sheet 38 through the third driving circuit, and the fourth voltage is applied to the fourth piezoelectric ceramic sheet 46 through the fourth driving circuit. The values ​​of the first voltage, the second voltage, the third voltage, and the fourth voltage can all be in the range of 0 to 200V.

[0063] Other structures are similar to those in Embodiment Six, and will not be described in detail here.

[0064] Example 10 differs from Example 6 in that the first voltage ranges from 0 to 160V, the second voltage ranges from 0 to 160V, the third voltage ranges from 0 to 200V, and the fourth voltage ranges from 0 to 100V.

[0065] Reference Figure 4 The following describes the oscillation of the guide needle 21 at the first station 31, the second station 32, and the third station 33:

[0066] Reference Figure 1 When the guide needle 21 swings to the first position 31 and the baffle unit 22 switches to the first position 23, the first voltage can be 0V, the second voltage is 160V, the third voltage is 0V, and the fourth voltage is 100V. Specifically, 160V is applied to the second piezoelectric ceramic sheet 39, 100V is applied to the fourth piezoelectric ceramic sheet 46, the voltage on the first piezoelectric ceramic sheet 38 is 0V, and the voltage on the third piezoelectric ceramic sheet 45 is 0V.

[0067] Reference Figure 1By setting the output voltage of the fourth voltage to be 100V lower than that of the conventional voltage, it is beneficial to the lifespan of the fourth piezoelectric ceramic sheet 46 and to reduce drive losses. When the baffle unit 22 is in the first position 23, it does not need a voltage of 200V, because it only needs to be on the right and does not require a lot of force. The conventional method can only output 200V.

[0068] Reference Figure 1 and Figure 2 When the baffle unit 22 drives the guide needle 21 to switch from the first position 23 to the second position 24, the first voltage is 160V, the second voltage is 0V, the third voltage is 200V, and the fourth voltage is 0V. Specifically, 160V is applied to the first piezoelectric ceramic sheet 38, 200V is applied to the third piezoelectric ceramic sheet 45, the voltage on the second piezoelectric ceramic sheet 39 is 0V, and the voltage on the fourth piezoelectric ceramic sheet 46 is 0V.

[0069] Reference Figure 3 When the guide needle 21 swings to the third position 33 and the baffle unit 22 switches to the first position 23, the first voltage is 160V, the second voltage is 0V, the third voltage is 0V, and the fourth voltage is 100V. Specifically, 160V is applied to the first piezoelectric ceramic sheet 38, 0V is applied to the third piezoelectric ceramic sheet 45, the voltage on the second piezoelectric ceramic sheet 39 is 0V, and the voltage on the fourth piezoelectric ceramic sheet 46 is 100V.

[0070] Other structures are similar to those in Embodiment Six, and will not be described in detail here.

[0071] Example 11, refer to reference Figure 4 , Figure 5 and Figure 6 The difference between this embodiment eleven and embodiment one is that the Jacquard comb includes at least one driver 17, a plurality of first bending actuators 11 with yarn guide needles 21, and a plurality of second bending actuators 12 with baffle units 22. It also includes at least one base 60, a plurality of first bending actuators 11 disposed on the base 60, and a plurality of second bending actuators 12 disposed on the base 60. Each first bending actuator 11 includes a first yarn guide needle 21 and a first piezoelectric ceramic material 100, which drives the first yarn guide needle 21 to oscillate. The first yarn guide needle 21 is disposed on the front portion of the first piezoelectric ceramic material 100. Each second bending actuator 12 includes a second piezoelectric ceramic material 200 and a baffle unit 22, which is disposed on the front portion of the second piezoelectric ceramic material 200 and drives the corresponding baffle unit 22 to oscillate independently. The base 60 is made of aluminum alloy, magnesium alloy, aluminum-magnesium alloy, carbon fiber, or resin.

[0072] Reference Figure 6 The first bending actuator 11 and the second bending actuator 12 are both arranged laterally on the same side of the base 60, forming a single-layer structure 61. A corresponding second bending actuator 12 is provided in the lateral direction of each first bending actuator 11, which is the swing direction of the yarn guide needle 21. A corresponding baffle unit 22 is arranged in the swing direction of each yarn guide needle 21. The baffle unit 22 is made of stainless steel. The yarn guide needle 21 is also made of stainless steel.

[0073] Reference Figure 4 , Figure 5 and Figure 6 Each baffle unit 22 is adapted to an adjacent guide needle 21, and the second bending actuator 12 is used to actuate the baffle unit 22 to switch between the first position 23 and the second position 24.

[0074] Reference Figure 4 and Figure 6 When the guide needle 21 does not deviate, the corresponding baffle unit 22 does not limit the guide needle 21. When the baffle unit 22 restricts the corresponding guide needle 21 to the second position 24, the corresponding guide needle 21 deviates by one stitch length. When the baffle unit 22 restricts the corresponding guide needle 21 to the first position 23, the corresponding guide needle 21 deviates by two stitch lengths.

[0075] Reference Figure 1 and Figure 2 The baffle unit 22 sets the voltage value of the first driving voltage to be less than the voltage value of the second driving voltage, so that the torque generated when the second bending actuator 12 swings is greater than the torque generated when the first bending actuator 11 swings.

[0076] Reference Figure 4 and Figure 6 A plurality of stops 62 are arranged laterally on the foremost part of the base 60. Each baffle unit 22 is equipped with two stops 62. These stops 62 restrict a portion of the baffle unit 22 from shifting along the moving direction. These stops 62 are arranged laterally to the moving direction on both sides of the swing space 68 of the baffle unit 22. Each baffle unit 22 has at least one protrusion 63, which protrudes laterally to the moving direction and extends into the intermediate space 64 between two stops 62 belonging to the baffle unit 22. The width of the intermediate space 64 is one pin pitch.

[0077] Reference Figure 4 The core function of the Jacquard comb is that, in addition to the need for the guide needles 21 to swing left and right, they must also be able to accurately stop at the second work station 32. Furthermore, each guide needle 21 swings independently, and at the same time, each different guide needle 21 can be in a different work station, rather than entering the same work station at the same time.

[0078] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 By setting the torque of the second bending actuator 12 to be greater than that of the first bending actuator 11, the baffle unit 22 can stably and effectively push the corresponding yarn guide needle 21 from the first position 23 toward the second position 24, that is, from the third station 33 to the second station 32, thereby stably limiting the yarn guide needle 21 by the baffle unit 22, so that the baffle unit 22 can stably switch between the second position 24 and the first position 23, and also stably switch the yarn guide needle 21 between the second position 24 and the first position 23.

[0079] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 When the initial moving position of the yarn guide needle 21 is the first position 23, the baffle unit 22 pushes the yarn guide needle 21 from the first position 23 to the second position 24, thereby achieving the effect of switching the yarn guide needle 21 from the third station 33 to the second station 32.

[0080] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 By setting the second bending actuator 12 to drive the corresponding baffle unit 22 in a swinging manner, on the one hand, each baffle unit 22 can be independently switched between the second position 24 and the first position 23, so that each corresponding guide needle 21 can enter the second station 32 or the third station 33 separately, thereby effectively achieving the technical requirements of three stations. On the other hand, the second bending actuator 12 has a simple structure and is easy to control, which reduces the overall technical difficulty of Jacquard comb and improves the stability of the baffle unit 22 blocking the guide needle 21 after switching between the second position 24 and the first position 23, achieving a dual effect.

[0081] Reference Figure 4 and Figure 5 In this embodiment, the torque of the baffle unit 22 is greater than the torque of the first bending actuator 11. By setting the torque of the baffle unit 22 to be greater than the torque of the first bending actuator 11, on the one hand, the thrust provided by the baffle unit 22 is greater than the force of the yarn guide needle 21 swinging in the first bending actuator 11, thereby effectively supporting the yarn guide needle 21. This causes the yarn guide needle 21 to stop swinging after being blocked by the baffle unit 22, thus effectively limiting the switching of the yarn guide needle 21 between the second station 32 and the third station 33. On the other hand, it prevents the yarn guide needle 21 from passing through the baffle unit 22 after being blocked by it, thereby preventing the occurrence of needle deviation, achieving a dual effect.

[0082] Reference Figure 6 Taking a second bending actuator 12 and a first bending actuator 11 as an example, the arrangement order is second bending actuator 12 / first bending actuator 11 / second bending actuator 12 / first bending actuator 11 / second bending actuator 12 / first bending actuator 11 / second bending actuator 12 / first bending actuator 11 / second bending actuator 12 / first bending actuator 11 / second bending actuator 12 / first bending actuator 11 / second bending actuator 12 / first bending actuator 11 / second bending actuator 12 / first bending actuator 11 / second bending actuator 12 / first bending actuator 11, arranged horizontally to form a single-layer structure 61.

[0083] Reference Figure 4 , Figure 5 and Figure 6 By setting the first bending actuator 11 and the second bending actuator 12 to be arranged laterally on the same side of the base 60 and forming a single-layer structure 61, only the piezoelectric Jacquard element of the single-layer structure 61 is needed to achieve the effect of the yarn guide needle 21 stopping at three different work positions, so that the Jacquard comb with three work positions has the same thickness as the original two-work position Jacquard comb.

[0084] Reference Figure 4 , Figure 5 and Figure 6 In this embodiment, the total number of yarn guide needles 21, the total number of first bending actuators 11, the total number of second bending actuators 12, and the total number of baffle units 22 are all the same and correspond one-to-one. When there are 8 first bending actuators 11 on a base 60, there are 8 corresponding yarn guide needles 21, 8 second bending actuators 12, and 8 baffle units 22. When there are 16 first bending actuators 11 on a base 60, there are 16 corresponding yarn guide needles 21, 16 second bending actuators 12, and 16 baffle units 22. Of course, more yarn guide needles 21 can be set, including but not limited to 8 or 16 needles. More yarn guide needles 21 can be set in the same way, which will not be elaborated further.

[0085] Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0086] Example 12, referring to Figure 4 and Figure 5 The difference between this embodiment 12 and embodiment 11 is that the protrusion 63 extends from top to bottom into the intermediate space 64. Each stop 62 is held at at least two different heights on the foremost part of the base 60.

[0087] Reference Figure 4The intermediate space 64 is constructed as a groove, which is positioned at the front of the base 60.

[0088] Reference Figure 1 and Figure 4 The stop 62 includes a comb tooth portion 65 and a stop block 66 disposed on one side of the comb tooth portion 65. The stop block 66 is adapted to an adjacent stop plate unit 22. Among these stops 62, the intermediate space 64 is sandwiched between one stop block 66 and another adjacent comb tooth portion 65.

[0089] Reference Figure 4 , Figure 5 and Figure 1 A cavity is provided between the two comb teeth 65, and a portion of the yarn guide needle 21 is disposed within the cavity. The cavity is a swing space 68 for a portion of the yarn guide needle 21. A stop block 66 is located below the swing space 68, and an intermediate space 64 is located below and connected to the swing space 68. The width of the cavity is two needle pitches. The head of the yarn guide needle 21 extends outside the cavity, and a yarn guide hole 67 is provided on the head of the yarn guide needle 21.

[0090] Reference Figure 1 When the baffle unit 22 swings to the opposite side of the comb tooth portion 65 (the opposite side is the side away from the comb tooth portion 65), the baffle unit 22 is blocked by the adjacent comb tooth portion 65, so that the baffle unit 22 stops swinging at the first position 23. At this time, the baffle unit 22 is used to prevent the guide needle 21 from swinging at the third position 33.

[0091] Reference Figure 1 and Figure 4 By setting the comb tooth portion 65 and the stop block 66, the comb tooth portion 65 is used to block the baffle unit 22 so that the baffle unit 22 stops swinging at the first position 23, so as to accurately achieve the effect of the baffle unit 22 switching to the first position 23. The stop block 66 is used to block the protrusion 63 of the baffle unit 22 so that the baffle unit 22 stops swinging at the second position 24, so as to achieve the effect of the baffle unit 22 switching from the second position 24 to the first position 23.

[0092] Reference Figure 2 When the baffle unit 22 stops swinging because the stop block 66 restricts it to the second position 24, the baffle unit 22 is used to limit the corresponding guide needle 21 to stop swinging at the second station 32. When the baffle unit 22 stops swinging because the comb tooth part 65 restricts it to the first position 23, or when the baffle unit 22 is used to block the guide needle 21 from swinging at the third station 33, the guide needle 21 can stop swinging at three different stations after being blocked by the corresponding baffle unit 22, thereby achieving the effect of the guide needle 21 being able to switch back and forth between the three stations.

[0093] Reference Figure 3 In this embodiment, the other side of the comb tooth portion 65 is used to limit the adjacent baffle unit 22 to the first position 23.

[0094] Working principle of a three-station workstation:

[0095] The oscillation amplitude of a two-station Jacquard comb is one groove needle position, while the oscillation amplitude of a three-station Jacquard comb is two groove needle positions (two needle distances) due to the addition of a station state. That is, without lateral movement, its oscillation amplitude is two groove needle positions (two needle distances).

[0096] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The three-station Jacquard comb refers to the guide needle 21, which, in addition to swinging left and right, must be able to accurately stop at the middle position (i.e., the second station 32 position), and the baffle unit 22 corresponds to the second position 24.

[0097] Reference Figure 6 The Jacquard combs at both workstations can only swing left and right, and their stopping positions are fixed and accurate. This fixed and accurate position is due to the comb teeth 65 of the base 60 being shaped according to calculated data. When the guide needle 21 swings left or right, it will stop on the tooth wall. Since the spacing of the tooth walls is calculated, as long as the tooth wall spacing is correct, the needle position is correct. The piezoelectric ceramic sheet generates a swinging torque after charging. A complete piezoelectric ceramic sheet capable of swinging left and right is composed of two individual piezoelectric ceramic sheets bonded to a fiberglass sheet. Each individual piezoelectric ceramic sheet is responsible for one swinging direction; that is, when one sheet is charged and the other is discharged, the correct swinging torque is generated, causing the piezoelectric ceramic sheet to swing left or right. This is the basic swinging principle of the piezoelectric ceramic sheet.

[0098] Reference Figure 1 and Figure 4 As long as a sufficiently large torque is generated, the guide needle 21 will be pressed tightly against the wall of one side of the comb tooth part 65 under the drive of the first piezoelectric ceramic material 100, and will not be deflected by the yarn, so it can accurately pass through the center of the two groove needles.

[0099] Reference Figure 1 and Figure 4 The groove has a width of one stitch pitch, the swing space 68 has a width of two stitch pitches, and there is a stop 66 between the groove and the swing space 68. The stop 66 can be stepped or triangular in shape.

[0100] Reference Figure 1 and Figure 4The first piezoelectric ceramic material 100 drives the yarn guide needle 21 to swing in the swing space 68. The position of the yarn guide needle 21 is higher than that of the stop block 66, so it is not affected by the stop block 66. Since the width of the swing space 68 is the width of two needle pitches, the first piezoelectric ceramic material 100 drives the yarn guide needle 21 to swing to a position of two needle pitches in the swing space 68.

[0101] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 After the second piezoelectric ceramic material 200 is installed, when the second piezoelectric ceramic material 200 drives the front-end baffle unit 22 to move, since the bottom of the baffle unit 22 (which can be a protrusion) is lower than the stop block 66, it can fall into the groove (that is, the middle space 64). When the baffle unit 22 is in the second position 24 or the first position 23, it will be blocked by the stop block 66 or the comb tooth portion 65 respectively. Therefore, the upper part of the baffle unit 22 is restricted to swinging left and right only in the swing space 68. Since the middle space 64 is set to the width of one needle pitch, the baffle unit 22 can swing left and right for one needle pitch position in the swing space 68 due to the obstruction of the stop block 66 or the comb tooth portion 65. Since the stop block 66 limits the baffle unit 22, the baffle unit 22 can only switch between the second position 24 and the first position 23, that is, swing between the stop block 66 and the comb tooth.

[0102] Reference Figure 1 , Figure 2 and Figure 3 The following describes how the three-station Jacquard comb works by switching between the three stations, specifically for station 31, station 24, and station 23:

[0103] Reference Figure 1 When the yarn guide needle 21 is at the first station 31: the needle position of the yarn guide needle 21 is at the first station 31. At this time, the position of the baffle unit 22 can be any position, such as the second position 24 or the first position 23, without affecting the current first station 31.

[0104] Reference Figure 2When the baffle unit 22 switches to the second position 24: the second drive circuit controls the second piezoelectric ceramic material 200 to switch the baffle unit 22 from the first position 23 to the second position 24. At the same time, it controls the first piezoelectric ceramic material 100 to drive the guide needle 21 to swing towards the baffle unit 22. At this time, the baffle unit 22 will be blocked by the stop block 66. Since the torque of the baffle unit 22 is greater than that of the guide needle 21, the guide needle 21 will press tightly on the baffle unit 22 without pushing the baffle unit 22 away and causing needle deviation. So the final result is that the baffle unit 22 stops after being blocked by the stop block 66, the guide needle 21 presses on the baffle unit 22, and the baffle unit 22 stops at the second position 24 (that is, the baffle unit 22 stops at the second position 24 after being blocked by the stop block 66), which is exactly one needle pitch (i.e., the position of the second station 32). It is equivalent to the guide needle 21 being at the second station 32 at this time.

[0105] Reference Figure 3 When the baffle unit 22 switches to the first position 23: the drive circuit controls the first piezoelectric ceramic material 100 to swing so that the guide needle 21 swings toward the third station 33, and at the same time controls the baffle unit 22 in front of the second piezoelectric ceramic material 200 to swing toward the first position 23. The guide needle 21 is in the third station 33 and presses on the baffle unit 22. Since the width is preset during the initial milling of the comb tooth part 65, the position of the guide needle 21 pressing on the baffle unit 22 is exactly two needle pitches, including the thickness of the baffle unit 22. Therefore, the guide needle 21 will be in the third station 33 at this time.

[0106] Other structures are similar to those in Example 11, and will not be described in detail here.

[0107] Example 13, referring to Figure 4 and Figure 5 The difference between Embodiment Thirteen and Embodiment Eleven is that the baffle unit 22 includes a body portion 71 and a protrusion 63. A portion of the protrusion 63 is disposed on the bottom of the body portion 71, and another portion of the protrusion 63 extends into the intermediate space 64. The tail of the body portion 71 is connected to the second piezoelectric ceramic material 200 of the second bending actuator 12, so that when the second piezoelectric ceramic material 200 swings, it drives at least a portion of the body portion 71 to switch between the second position 24 and the first position 23. The other portion of the body portion 71 is used to block the guide needle 21 in the second position 24 or the first position 23 respectively. The body portion 71 is made of stainless steel, and the protrusion 63 is made of stainless steel.

[0108] Other structures are similar to those in Example 11, and will not be described in detail here.

[0109] Example 14, referring to Figure 1 , Figure 2 , Figure 3 and Figure 4 The difference between Embodiment Fourteen and Embodiment Eleven lies in the following: In the working process of the Jacquard comb: After being energized, the first piezoelectric ceramic material 100 of the first bending actuator 11 drives the guide needle 21 to swing left and right, causing the guide needle 21 to repeatedly switch positions between the first station 31, the second station 32, and the third station 33. The distance between the first station 31 and the third station 33 is two needle lengths, and the distance between the third station 33 and the second station 32 is one needle length. The first station 31 is the first needle position of the guide needle 21, the third station 33 is the last needle position of the guide needle 21, and the second station 32 is located in the middle position between the first station 31 and the third station 33. After being energized, the second piezoelectric ceramic material 200 of the second bending actuator 12 drives the baffle unit 22 to switch between the second position 24 and the first position 23 in a swinging manner.

[0110] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 When the baffle unit 22 restricts the corresponding yarn guide needle 21 to the first position 23, the corresponding yarn guide needle 21 is offset by two needle pitches. At this time, the yarn guide needle 21 is in the third working position 33 and stops swinging.

[0111] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 When the baffle unit 22 switches from the first position 23 to the second position 24, the baffle unit 22 is configured to apply a pushing force to the yarn guide needle 21, so that the yarn guide needle 21 is restricted to stop swinging in the second position 24. At this time, the yarn guide needle 21 is in the second working position 32 and stops swinging. In one embodiment, this can be manifested as the protrusion 63 being limited by the stop block 66, so that the baffle unit 22 stops swinging in the second position 24. The body part 71 contacts a part of the yarn guide needle 21, and the body part 71 pushes the yarn guide needle 21, so that the yarn guide needle 21 is restricted to the second position 24. More specifically, assuming the most open Initially, the baffle unit 22 is in the first position 23, and the guide needle 21 also swings to the first position 23 and abuts against the body 71 of the baffle unit 22. Because the torque of the second bending actuator 12 is greater than the torque of the first bending actuator 11, the baffle unit 22 is driven by the second bending actuator 12 to swing to the second position 24. During this swing, the guide needle 21 is pushed by the baffle unit 22, so that the guide needle 21 follows the baffle unit 22 from the first position 23 to the second position 24, thereby achieving the effect of the guide needle 21 switching from the third station 33 to the second station 32.

[0112] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 When the guide needle 21 does not deviate, the baffle unit 22 can be in the second position 24 or the first position 23.

[0113] Other structures are similar to those in Example 11, and will not be described in detail here.

[0114] Example 16 differs from Example 1 in that: the raw materials for manufacturing the first piezoelectric ceramic material 100 include the following components by weight: 19-31 parts zirconium oxide; 62-64 parts lead tetroxide; 21-22 parts titanium oxide; 7-8 parts anhydrous ethanol; 13-14 parts toluene; 2-2.5 parts polyvinyl butyral; and 1.5-2 parts dioctyl phthalate. The raw materials for manufacturing the second piezoelectric ceramic material 200 include the following components by weight: 46.18-64.6 parts lead tetroxide. 3 parts; titanium dioxide 8 to 10.7 parts; zirconium dioxide 20.8 to 27.7 parts; barium carbonate 5.8 to 7.67 parts; strontium carbonate 1.95 to 2.55 parts; calcium carbonate 0.1034 to 0.1037 parts; niobium pentoxide 0.97 to 1.28 parts; zinc oxide 0.32 to 0.37 parts; ferric oxide 0.16 to 0.21 parts; antimony trioxide 0.326 to 0.374 parts; oleic acid 0.02 to 0.03 parts; and polyvinyl alcohol 2.45 to 3.22 parts.

[0115] In this embodiment, three oxides (zirconia, lead tetroxide, and titanium oxide) are mixed and sintered at high temperature. After solid-state reaction, polycrystalline lead zirconate titanate (i.e., a solid solution of PbZrO3 and PbTiO3, evaluated as Pb(Zr1-xTix)O3) is obtained.

[0116] Using a power source, the reaction principle is illustrated as follows: Pb3O4 + TiO2 + ZrO2 → Pb(Zr1-xTix)O3.

[0117] Process Description:

[0118] Vibratory milling: The raw material is a pre-mixed mixture of Pb3O4, TiO2, and ZrO2 (powder, approximately 60%, 20%, and 18% respectively, with the remaining 2% being impurities) purchased from an external manufacturer. The raw material is packaged in bags and poured into a sealed vibratory mill for 12 hours of vibratory grinding. Each pass through the vibratory mill is 50 kg of raw material, containing 200 kg of vibrating steel balls to ensure thorough and uniform mixing of the powder. After uniform mixing, the vibratory mill is turned over for discharge. To reduce dust generation during discharge, a cloth bag is placed over the discharge port before turning. Dust is generated during discharge, primarily a mixture of Pb3O4, TiO2, and ZrO2. The vibratory mill generates heat due to friction. To prevent temperature from affecting the equipment, the vibratory mill needs to be cooled indirectly by spraying tap water onto the outside of the mill. The internal temperature is kept at a constant level. A spray tank is installed below the vibratory mill to collect and recycle the spray water. The mixing process is a physical mixing process and no chemical reaction occurs.

[0119] Pre-calcination: The uniformly mixed powder is first placed into a stainless steel drum, then transported to the pre-calcination room, added to a crucible, and placed in a pre-calcination furnace for calcination to form lead zirconate titanate at a maximum temperature of 1140℃. Pre-calcination has four stages, and the entire process takes approximately 8 hours. The chemical reactions involved are as follows: During heating, Pb3O4 gradually decomposes into PbO to participate in the reaction; the entire process is a solid-state reaction. At 350℃~680℃: PbO + TiO2 → PbTiO3 At 625℃~850℃ (holding for 1~2 hours): PbTiO3 + PbO + ZrO2 → Pb(Zr1-xTix)O3 At temperatures above 850℃ (holding for 4 hours): Pb(Zr1-xTix)O3 + PbTiO3 → Pb(Zr1-xTix')O3 (x' > x).

[0120] Crushing: Pour the pre-fired material from the crucible into a crusher and then mechanically crush it. After crushing, let it stand for a period of time. After crushing, send it to a vibratory mill for further grinding and mixing before sending it to the batching plant.

[0121] Ingredients: The pulverized and vibrated powder is then mixed with anhydrous ethanol (solvent), toluene (solvent), PVB (polyvinyl butyral, binder), and DOP (dioctyl phthalate, plasticizer) in a ratio of 6:12:1.8:1. The mixture is then stirred in a sealed mixer. The added materials form a gel that binds the granular powder together. The mixture is further stirred into a slurry in a ball mill for subsequent material shaping. The solvents (anhydrous ethanol and toluene) dissolve and disperse the binder and plasticizer, providing a suitable viscosity for the slurry. The binder (PVB) disperses the ceramic powder particles, connecting them to give the cast film a certain strength and workability. The plasticizer (DOP) ensures the flexibility of the green film, lowers the glass transition temperature of the binder, and allows the binder chains to curl and stretch under external force at a lower temperature, increasing deformation.

[0122] Casting: The slurry, after being thoroughly mixed and added to a ball mill jar, is cast. The casting machine is not completely sealed. At the beginning of casting, the slurry is forced into the casting machine box from a sealed container by compressed air. The box itself is open. Then the slurry enters the steel belt carrier, which circulates within the sealed space. The formed film is collected at the end of the casting machine. The casting temperature is maintained at 120℃ for 3 minutes. The beginning and end of the cast film do not enter the next process; they are collected and reused within the plant. PVB does not form corrosive gases or decompose at temperatures as low as 300~400℃. DOP, as a plasticizer, forms a stable adhesive state with PVB and is not easily volatile. Toluene and ethanol have low volatilization temperatures; at this temperature, toluene and ethanol are the main volatiles released during this process.

[0123] Cutting: Cutting the cast film into the required size.

[0124] Isostatic pressing: Several pre-cut membranes are stacked together according to size requirements and bonded together under high pressure in an isostatic pressing device.

[0125] Cutting: The membrane, which is bonded together under high pressure, is then cut into the required size using a cutting machine to form ceramic sheets. The waste material from the cutting process is recycled within the plant.

[0126] Zirconium powder coating: To prevent ceramic pieces from sticking together, a thin layer of zirconium powder is applied to the surface of the cut ceramic pieces on the worktable.

[0127] Glue removal: The ceramic sheets are placed in a high-temperature oven for sintering, simultaneously burning off all the PVB and DOP binders within the ceramic sheets. The entire sintering process takes approximately 80 hours, with a maximum temperature of 480℃. The heating and holding phase lasts 72 hours, after which the sheets are cooled to 60℃ before being removed from the oven. Hot air is continuously introduced during the heating and holding processes, carrying the organic waste gases generated during ceramic sheet sintering to the subsequent incinerator for treatment. Within the 480-200℃ range, the glue removal furnace uses electronic temperature control to cool according to a specific cooling curve. Cooling is achieved through air cooling, and once the temperature drops below 200℃, the furnace door is opened for natural cooling to room temperature.

[0128] Firing: After initial firing in a high-temperature oven to remove PVB and other contaminants, the green body is further fired in a high-temperature firing chamber. This process utilizes heat to transform the green body into a dense ceramic body with a specific microstructure. The firing temperature is 1330℃, with a heating period of 8 hours, a holding period of 2 hours, and natural cooling before removal from the furnace. For solid-phase synthesized PZT powder particles, the volatilization temperature of PbO is 1213.29℃, so PbO will volatilize during sintering. However, this project uses a sealed crucible for firing, therefore, the amount of PbO volatilization during firing is extremely small.

[0129] Grinding discs: Pre-fired ceramic discs are ground on a grinding machine in several directions to achieve the desired dimensions. Wet grinding is used, with the addition of tap water and a rust inhibitor. This process generates grinding wastewater, which is treated through a built-in three-stage sedimentation system. The supernatant is recycled within the grinding machine and discharged into a secondary sedimentation tank within the factory area every six months. The water-based rust inhibitor primarily prevents rust and corrosion of the grinding machine workpieces, stops, and grinding discs. Its main component is ethanolamine, and 500ml is added every two weeks.

[0130] Screening: The selection process mainly focuses on factors such as size to identify qualified ceramic tiles.

[0131] Cleaning (first tap water rinse + drying + acetone rinse + second pure water rinse + drying): The cleaning section is located in a sealed room. The ceramic pieces are cleaned using tap water, acetone, and pure water. First, a tap water rinse is performed, followed by drying in an electric oven, then an acetone rinse, and finally a second pure water rinse followed by drying in an electric oven. Drying primarily involves steam. The acetone used is purchased raw material and does not require dilution; the cleaning process is at room temperature. Each cleaning session lasts more than 30 minutes and uses ultrasonic cleaning at room temperature. Tap water is placed in a large ultrasonic cleaning tank, followed by four smaller tanks containing ceramic pieces and acetone. The liquid level in the smaller tanks is [level missing]. After each cleaning, the ceramic pieces are removed, and all the acetone is poured into a sealed container for storage and recycling until it is no longer usable. When the acetone is no longer usable, it is sent to a recycling machine for further recycling.

[0132] Screening: The screening is mainly based on factors such as thickness to select qualified ceramic sheets.

[0133] Coating: Selected high-quality ceramic sheets are passed through a vacuum coating machine to coat their surfaces with a conductive electrode layer. Vacuum coating machine principle: Metal is evaporated or sputtered in a vacuum, causing it to solidify and deposit on the substrate. The vacuum coating machine first uses chromium particles to create a metal base, and then vacuum-plats gold on top.

[0134] Screening: Screening after gold plating.

[0135] Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0136] 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 piezoelectric ceramic jacquard device, characterized in that: The device includes multiple yarn guide needles, multiple first bending actuators for driving the corresponding yarn guide needles to oscillate, multiple baffle units adapted to the yarn guide needles, and multiple second bending actuators for driving the corresponding baffle units to oscillate. Each first bending actuator has at least two opposing first piezoelectric ceramic materials. When energized, the first piezoelectric ceramic materials drive the corresponding yarn guide needles to oscillate. Each second bending actuator has at least two opposing second piezoelectric ceramic materials. When energized, the second piezoelectric ceramic materials drive the corresponding baffle units to oscillate. When the energizing voltage is the same, the torque of the second piezoelectric ceramic materials during oscillation is greater than the torque of the first piezoelectric ceramic materials during oscillation. The baffle units are configured to limit the corresponding yarn guide needles, so that each yarn guide needle has at least three positions for jacquard yarn guiding. When the second piezoelectric ceramic material is energized, it drives the baffle unit to switch between a first position and a second position. When a portion of the yarn guide needle abuts against a portion of the baffle unit, the baffle unit drives the corresponding yarn guide needle to switch positions. The three workstations include a first workstation, a second workstation, and a third workstation. The second workstation is located in the middle between the first workstation and the third workstation. The first workstation and the third workstation are separated by two stitch lengths. The first workstation and the second workstation are separated by one stitch length. The second workstation and the third workstation are separated by one stitch length. The first position is located at the third workstation, and the second position is located at the second workstation. The first bending actuator is mounted on the base, and the second bending actuator is mounted on the base. The base is made of aluminum alloy, magnesium alloy, aluminum-magnesium alloy, carbon fiber, or resin.

2. The piezoelectric ceramic jacquard device as described in claim 1, characterized in that: The piezoelectric ceramic material of the first material is different from that of the piezoelectric ceramic material of the second material.

3. The piezoelectric ceramic jacquard device as described in claim 1 or 2, characterized in that, The raw materials for manufacturing the first piezoelectric ceramic material include the following components by weight: 19-31 parts zirconium oxide; 62-64 parts lead tetroxide; 21-22 parts titanium dioxide; 7-8 parts anhydrous ethanol; 13-14 parts toluene; 2-2.5 parts polyvinyl butyral; and 1.5-2 parts dioctyl phthalate. The raw materials for manufacturing the second piezoelectric ceramic material include the following components by weight: 46.18-64.63 parts lead tetroxide; and 8-10.7 parts titanium dioxide. The composition includes: zirconium dioxide 20.8-27.7 parts; barium carbonate 5.8-7.67 parts; strontium carbonate 1.95-2.55 parts; calcium carbonate 0.1034-0.1037 parts; niobium pentoxide 0.97-1.28 parts; zinc oxide 0.32-0.37 parts; ferric oxide 0.16-0.21 parts; antimony trioxide 0.326-0.374 parts; oleic acid 0.02-0.03 parts; and polyvinyl alcohol 2.45-3.22 parts.

4. The piezoelectric ceramic jacquard device as described in claim 1, characterized in that: The first piezoelectric ceramic material and the second piezoelectric ceramic material are the same piezoelectric ceramic material. The thickness of the second piezoelectric ceramic material is greater than that of the first piezoelectric ceramic material. When the applied voltage is the same, the torque of the second piezoelectric ceramic material when it oscillates is greater than that of the first piezoelectric ceramic material when it oscillates.

5. The piezoelectric ceramic jacquard device as described in claim 1, 2, or 4, characterized in that: It also includes at least one driver, the driver including at least one power supply device, the power supply device outputting at least one first driving voltage and at least one second driving voltage, wherein when the first piezoelectric ceramic material is energized, the first driving voltage is configured to be applied to the terminal of the first piezoelectric ceramic material, and when the second piezoelectric ceramic material is energized, the second driving voltage is configured to be applied to the terminal of the second piezoelectric ceramic material.

6. The piezoelectric ceramic jacquard device as described in claim 5, characterized in that: The driver further includes at least one transformer module, which is used to increase or decrease the voltage output by the power supply device. The first driving voltage is converted into a preset voltage value by the transformer module, and the second driving voltage is converted into a preset voltage value by the transformer module.

7. The piezoelectric ceramic jacquard device as described in claim 6, characterized in that: It also includes at least one drive circuit board, a plurality of first drive circuits disposed on the drive circuit board, and a plurality of second drive circuits disposed on the drive circuit board. The first drive circuit is used to drive the first piezoelectric ceramic material to oscillate, and the second drive circuit is used to drive the second piezoelectric ceramic material to oscillate. The input terminal of the first drive circuit is electrically connected to the output terminal of the transformer module, and the output terminal of the first drive circuit is electrically connected to the power receiving terminal of the first piezoelectric ceramic material. The input terminal of the second drive circuit is electrically connected to the output terminal of the transformer module, and the output terminal of the second drive circuit is electrically connected to the power receiving terminal of the second piezoelectric ceramic material.

8. A textile machine, characterized in that: The textile machinery has at least one piezoelectric ceramic Jacquard device, which is the piezoelectric ceramic Jacquard device according to any one of claims 1, 2 or 4.

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