A wireless Jacquard jacquard device and warp knitting machine that can be debugged separately

Abstract

A separately debuggable wireless Jacquard device and warp knitting machine, comprising a printed circuit board, a first power connection port, a second power connection port and a first wiring harness. In the present invention, by providing a first power connection port on the left side of the printed circuit board, a first wiring harness inside the printed circuit board, and a second power connection port on the right side of the printed circuit board, the first wiring harness is used to connect the first power connection port and the second power connection port. On the one hand, it replaces the existing long copper strip, so that the driving power supply and process signals provided by the external controller are input from the first power connection port, and after passing through the first wiring harness on the printed circuit board, they are output from the second power connection port to the first power connection port of another wireless Jacquard device, solving the problem of the exposed power supply of the existing copper strip, and at the same time improving the safety of power consumption and the stability of power supply.

Description

Technical Field

[0001] The present invention relates to the field of warp knitting machines, and more particularly to a wireless Jacquard patterning device and a warp knitting machine that can be individually debugged. Background Art

[0002] The piezoelectric Jacquard consists of a piezoelectric needle selection piece, a needle clip, a guide yarn needle, a shield, a cable plug, and an aluminum-magnesium alloy base for fixing and limiting the piezoelectric needle selection piece, etc. The machine number is represented by the number of needles per inch. Two piezoelectric ceramic pieces are symmetrically pasted on the cantilever beam structure of the elastic substrate. The commonly used DC drive voltage is 200V, and the average drive current of a single piece is less than 1mA. Under the excitation of an external rectangular pulse signal, a DC drive voltage of 200V is alternately applied to the two ceramic pieces of the piezoelectric needle selection piece. Due to the inverse piezoelectric effect, the piezoelectric ceramic piece continuously contracts, bends, or recovers during the charging and discharging processes, driving the Jacquard guide yarn needle to make periodic deflection movements.

[0003] The piezoelectric needle selection piece consists of a three-layer structure of piezoelectric ceramic - substrate (insulating fiberglass layer) - piezoelectric ceramic. Utilizing the "inverse piezoelectric effect" of the piezoelectric ceramic, when a positive external electric field in the same direction as the polarization direction is applied, the polarization intensity is enhanced, causing the piezoelectric ceramic to elongate along the polarization direction. When a reverse external electric field opposite to the polarization direction is applied, the polarization intensity is weakened, causing the piezoelectric ceramic to shorten along the polarization direction. By alternately applying positive and negative voltages to both sides of the piezoelectric Jacquard element through the drive controller, the piezoelectric ceramic bends, enabling the guide yarn needle to deflect left or right. When positioning blocks are provided on both sides of the Jacquard guide yarn needle, its deflection angle can be precisely controlled. Also, because the piezoelectric ceramic has an effect similar to a capacitor, the piezoelectric Jacquard element can maintain its deflected position.

[0004] Chinese Invention Patent (Application No.: 201710030965.9, Publication No.: CN106757749B) discloses an active Jacquard drive system, including: at least one driver installed on the Jacquard for directly driving the Jacquard needles on the Jacquard, the driver having a first interface; at least one CPU for receiving process signals and processing the process signals to output a CLK clock signal, an LE signal, and a data signal to the driver; a cable, the cable including a circuit for providing the required drive power to the CPU and the driver, process signal lines, and the cable is also connected to at least one second interface for providing drive power and the CLK clock signal, the LE signal, and the data signal. Therefore, in this prior art, all Jacquard patterning devices are directly powered on each time, and it is impossible to power on only a single specified wireless Jacquard patterning device. The single specified wireless Jacquard patterning device refers to the wireless Jacquard patterning device that needs to be debugged before the operation of the warp knitting machine.

[0005] For now, in the existing wireless jacquard devices, two parallel long copper bars are arranged on the comb bed, one copper bar is the positive electrode and the other copper bar is the negative electrode. One end of the copper bar is electrically connected to the power supply, and the conductive thimble in the wireless jacquard device abuts against the copper bar to draw electricity.

[0006] The existing wireless jacquard device uses copper bars to replace the cable for power supply, thus achieving the result of wireless operation. The "wireless" here means that during the working process, there is no cable at the tail, solving the problem that in the traditional warp knitting machine, during the use of the wired piezoelectric jacquard, the cable at the tail of the wired piezoelectric jacquard affects the normal operation (an attached figure in the prior art CN106757749B Figure 2 is a wired piezoelectric jacquard).

[0007] This way of taking electricity by the cooperation of the thimble and the copper bar is a way of taking electricity in the current wireless jacquard device. However, in the actual use process, there are still the following deficiencies: after the copper bar is electrified, all the multiple wireless jacquard devices arranged on the comb bed will be electrified simultaneously because of the way of taking electricity by the cooperation of the thimble and the copper bar. However, before the warp knitting machine runs, the needle gauge needs to be adjusted first. When adjusting the needle gauge, it is required that only one jacquard device is electrified, and the other jacquard devices that do not need to adjust the needle gauge are not electrified. Because when adjusting the needle gauge, only one jacquard device can be adjusted each time. If other jacquard devices are also electrified together, it will affect the normal adjustment work.

[0008] That is to say, for the existing wireless jacquard device, using the way of taking electricity by the cooperation of the thimble and the copper bar, when adjusting the needle gauge, it is impossible to control the specified jacquard device (the specified jacquard device is the jacquard device to be adjusted for the needle gauge) to be electrified, while other jacquard devices are not electrified. To solve this problem, this solution is proposed. Summary of the Invention

[0009] The present invention provides a wireless jacquard device and a warp knitting machine that can be individually debugged, and its main purpose is to overcome the defect that for the existing wireless jacquard device, using the way of taking electricity by the cooperation of the thimble and the copper bar, when adjusting the needle gauge, it is impossible to control the specified jacquard device to be electrified, while other jacquard devices are not electrified.

[0010] To solve the above technical problems, the present invention adopts the following technical solutions:

[0011] A wireless Jacquard device that can be individually debugged, comprising at least one base, a plurality of piezoelectric Jacquard elements arranged on the front part of the base, and at least one Jacquard driver arranged on the rear part of the base. The Jacquard driver includes at least one drive circuit controlled by an external controller. The drive circuit is used to drive the needles of the piezoelectric Jacquard elements to swing, so as to realize the Jacquard yarn guiding action. The Jacquard driver further includes at least one printed circuit board, at least one third power connection port arranged at the tail of the printed circuit board, and a third wiring harness arranged in the printed circuit board. The third wiring harness is used to connect the third power connection port and the drive circuit. The third wiring harness includes a circuit for providing the required drive power to the drive circuit and process signal lines. When debugging the needle pitch, the third power connection port is energized. When normally guiding the yarn by Jacquard, the third power connection port is not energized.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] The present invention has a simple structure and strong practicability. By setting the third power connection port and the third wiring harness arranged in the printed circuit board, and arranging the third power connection port at the tail of the printed circuit board, the space at the tail of the printed circuit board can be reasonably utilized. When the needle pitch needs to be debugged before the warp knitting machine runs, a single specified wireless Jacquard device can be started as needed. An external cable line separately connected to the external controller is used, and the external cable line is plugged into the third power connection port in a pluggable manner to be energized, so as to individually drive the single wireless Jacquard device to be debugged. After the debugging is completed, the external cable line is directly pulled out to end the debugging, so as to quickly debug the needle pitch of the specified single wireless Jacquard device, which is simple and convenient.

[0014] In the present invention, by setting a first power connection port on the left side of the printed circuit board, a first wiring harness arranged in the printed circuit board, and a second power connection port on the right side of the printed circuit board, the first wiring harness is used to connect the first power connection port and the second power connection port. On the one hand, it replaces the existing long copper strip. The drive power and process signals provided by the external controller are input from the first power connection port, and after passing through the first wiring harness on the printed circuit board, they are output from the second power connection port to the first power connection port of another wireless Jacquard device. The side power supply is taken in a pluggable manner on the left and right sides of the printed circuit board, which solves the problem of the exposed power supply of the existing copper strip, and at the same time improves the safety of power use and the stability of power supply. On the other hand, when disassembly is required, a single wireless Jacquard device to be disassembled can be directly removed from the comb bed. When the wireless Jacquard device is removed, the two adjacent wireless Jacquard devices can be powered off instantly when they are separated. Therefore, when a single wireless Jacquard device is damaged, it can be quickly disassembled, which has the advantage of convenient disassembly and serves two purposes.

[0015] In the present invention, when the wireless jacquard device is operating normally, the bottom base of one wireless jacquard device is closely adjacent to the bottom base of another wireless jacquard device, and the second power connection port of one wireless jacquard device is closely adjacent to the first power connection port of another wireless jacquard device, so that the second power connection port of one wireless jacquard device and the first power connection port of another wireless jacquard device are plugged together in a detachable manner, thereby quickly achieving electrical connection, having the advantage of convenient installation, and achieving a two - birds - with - one - stone effect.

[0016] In the present invention, by providing the third gold - plating layer, the third gold - plating layer can protect the third copper core layer, play an antioxidant effect, thereby extending the service life of the third antioxidant power connection terminal, and enabling the third antioxidant power connection terminal to maintain good electrical conductivity during long - term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 It is a module diagram of the present invention.

[0019] Figure 3 It is a structural schematic diagram of the second power connection port.

[0020] Figure 4 It is a state diagram when the wireless jacquard device is disassembled from the comb bed.

[0021] Figure 5 It is a circuit diagram of the drive circuit.

[0022] Figure 6 It is a schematic diagram of the principle of the drive circuit.

[0023] Figure 7 It is a structural schematic diagram of Embodiment Six.

[0024] Figure 8 It is a step - flow chart of the nickel - immersion gold method. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following describes the detailed embodiments of the present invention with reference to the accompanying drawings.

[0026] Embodiment One, refer to Figure 1, A wireless jacquard device with piezoelectric ceramics and a warp knitting machine. The warp knitting machine includes at least one wireless jacquard device. The wireless jacquard device includes at least one bottom base 111, a plurality of piezoelectric jacquard elements 102 arranged on the front part of the bottom base 111, and at least one jacquard driver 112 provided on the rear part of the bottom base 111. The bottom base 111 is made of magnesium-aluminum alloy material, magnesium alloy material or aluminum alloy material.

[0027] Refer to Figure 1 , Figure 2 and Figure 3 , The jacquard driver 112 includes at least one drive circuit 118 controlled by an external controller, at least one printed circuit board 113, at least one first power connection port 114, at least one second power connection port 115, a plurality of first wiring lines 116 arranged in the printed circuit board 113, at least one third power connection port 120 provided at the tail of the printed circuit board 113, and a third wiring line 119 arranged in the printed circuit board 113. The drive circuit 118 is arranged on the printed circuit board 113.

[0028] Refer to Figure 1 , Figure 2 and Figure 3 , The drive circuit 118 is used to drive the jacquard needles 130 of the piezoelectric jacquard elements 102 to swing, so as to realize the jacquard yarn guiding action.

[0029] Refer to Figure 1 , The output end of the third power connection port 120 is welded to the tail of the printed circuit board 113 in a welding manner, so that the third power connection port 120 is fixedly installed on the tail of the printed circuit board 113.

[0030] Refer to Figure 1 and Figure 2 , The third wiring line 119 is used to connect the third power connection port 120 and the drive circuit 118. The third wiring line 119 includes a circuit for providing the required drive power to the drive circuit 118 and a process signal line.

[0031] Refer to Figure 1 and Figure 7 , After the first power connection port 114, the printed circuit board 113, the second power connection port 115 and the third power connection port 120 are electrically connected together by welding respectively, they form an inseparable whole, improving the integration and facilitating disassembly and replacement.

[0032] Refer to Figure 1 , By setting the third power connection port 120 and the third wiring line 119 arranged in the printed circuit board 113, the third power connection port 120 is arranged on the tail of the printed circuit board 113, so as to reasonably utilize the space at the tail of the printed circuit board 113.

[0033] When debugging the needle gauge before the warp knitting machine runs, a single specified wireless Jacquard device can be started as needed. Specifically, an external cable line that is separately connected to an external controller is used. The external cable line is plugged in and unplugged into the third power connection port 120 to be powered on (inputting the drive power supply and process signals), so as to separately drive the single wireless Jacquard device that needs to be debugged. After the debugging is completed, the external cable line is directly pulled out to end the debugging, thus realizing the quick debugging of the needle gauge for the specified single wireless Jacquard device, which is simple and convenient.

[0034] The needle gauge of a warp knitting machine usually refers to the left - right position of the comb bed relative to the knitting needles. The left - right distance between the entire row of guide needles and the knitting needles is controlled by the slide screw of the patterning wheel. Taking the knitting needles as the reference, observe the left - right position of the comb bed, adjust the direction of the screw, so that the comb bed moves horizontally a little bit to the middle of the knitting needles, and the warp knitting machine needs to adjust the needle gauge before normal operation.

[0035] Refer to Figure 1 、 Figure 2 、 Figure 3 When debugging the wireless Jacquard device before using the warp knitting machine, the third power connection port 120 is powered on, the first power connection port 114 is not powered on, the second power connection port 115 is not powered on. The third power connection port 120 is only externally connected with an external cable line to be powered on when debugging the needle gauge. There is a wire groove 121 on the tail clip 122, and the external cable line can be inserted from the wire groove 121 to realize the electrical connection with the third power interface. When the warp knitting machine is working normally, that is, when the wireless Jacquard device is normally guiding the yarn for patterning, the third power connection port 120 is in an idle state, without an external cable line installed and not powered on.

[0036] Refer to Figure 1 、 Figure 2 、 Figure 3 When the warp knitting machine is running normally, the first power connection port 114, the drive circuit 118, and the second power connection port 115 are all powered on (inputting the drive power supply and process signals), and the third power connection port 120 is not powered on.

[0037] Refer to Figure 1 The third power connection port 120 includes at least one third housing 151 provided at the tail of the printed circuit board 113 and a plurality of conductive third antioxidant power connection terminals. The output ends of the third antioxidant power connection terminals are welded to the tail of the printed circuit board 113, so that the third housing 151 is fixedly installed at the tail of the printed circuit board 113. The input ends of the third antioxidant power connection terminals are provided inside the third housing 151, and the output ends of the third antioxidant power connection terminals are electrically connected to the third cable 119.

[0038] The third antioxidant electrical connection terminal includes at least one electrically conductive third copper core layer and at least one third gold plating layer, and the third gold plating layer is plated on the third copper core layer. The copper core layer can also be replaced with an electrically conductive copper sheet layer.

[0039] By providing the third gold plating layer, the third gold plating layer can protect the third copper core layer and has the effect of antioxidation, thereby prolonging the service life of the third antioxidant electrical connection terminal and enabling the third antioxidant electrical connection terminal to maintain good electrical conductivity during long-term use.

[0040] Example 2, referring to Figure 1 and Figure 2 In this example 2, the difference from example 1 is that: the first wiring harness 116 includes a circuit and a process signal line for providing the required driving power supply to the driving circuit 118. The first wiring harness 116 is used to connect the first electrical connection port 114 and the second electrical connection port 115. The first electrical connection port 114 is provided on the left side of the printed circuit board 113, and the second electrical connection port 115 is provided on the right side of the printed circuit board 113.

[0041] Referring to Figure 1 、 Figure 2 and Figure 3 The output end of the first electrical connection port 114 is welded to the left side of the printed circuit board 113 in a welding manner, so that the first electrical connection port 114 is fixedly installed on the left side of the printed circuit board 113. The input end of the second electrical connection port 115 is welded to the right side of the printed circuit board 113 in a welding manner, so that the second electrical connection port 115 is fixedly installed on the right side of the printed circuit board 113.

[0042] Referring to Figure 1 、 Figure 2 、 Figure 3 and Figure 7 After the first electrical connection port 114, the printed circuit board 113, and the second electrical connection port 115 are electrically connected to each other by welding respectively, they form an inseparable whole, improving the integration and facilitating disassembly and replacement.

[0043] Referring to Figure 1 、 Figure 2 、 Figure 3 and Figure 4, by setting a first power connection port 114 on the left side of the printed circuit board 113, a first flexible cable 116 inside the printed circuit board 113, and a second power connection port 115 on the right side of the printed circuit board 113, the first flexible cable 116 is used to connect the first power connection port 114 and the second power connection port 115. On the one hand, it replaces the existing long copper bar, enabling the drive power supply and process signals provided by the external controller to be input through the first power connection port 114, passing through the first flexible cable 116 on the printed circuit board 113, and then output to the first power connection port 114 of another wireless Jacquard device through the second power connection port 115. By adopting a plug-in method on the left and right sides of the printed circuit board 113 for side power taking, it solves the problem of the exposed power supply of the existing copper bar, and at the same time improves the safety of electricity use and the stability of power supply. On the other hand, when disassembly is required, a wireless Jacquard device to be disassembled can be directly removed from the comb bed 101. When this wireless Jacquard device is removed, the two adjacent wireless Jacquard devices can be powered off instantly when separated. Thus, when a single wireless Jacquard device is damaged, it can be quickly disassembled, which has the advantage of convenient disassembly and serves two purposes at once.

[0044] Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , when the wireless Jacquard device is operating normally, the bottom base 111 of one wireless Jacquard device (wireless Jacquard device 104) is closely adjacent to the bottom base 111 of another wireless Jacquard device (wireless Jacquard device 103), and the second power connection port 115 of one wireless Jacquard device (wireless Jacquard device 104) is closely adjacent to the first power connection port 114 of another wireless Jacquard device (wireless Jacquard device 103), so that between the second power connection port 115 of one wireless Jacquard device (wireless Jacquard device 104) and the first power connection port 114 of another wireless Jacquard device (wireless Jacquard device 103), they are detachably installed together in a plug-in manner, thus achieving electrical connection quickly, which has the advantage of convenient installation, can meet the requirement of quick installation, and serves two purposes at once.

[0045] Although, in Figure 4 only four wireless Jacquard devices are drawn as a schematic diagram, in actual use, the installation should not be limited to four wireless Jacquard devices at the same time. This wireless Jacquard device is applied to a warp knitting machine, and multiple wireless Jacquard devices need to be set in the warp knitting machine. The specific number depends on the machine number of the warp knitting machine.

[0046] Refer to Figure 1 and Figure 3, the first power connection port 114 is a male power connection port or a female power connection port, and the second power connection port is a female power connection port or a male power connection port. When the first power connection port 114 is a male power connection port, the second power connection port 115 is a female power connection port. When the first power connection port 114 is a female power connection port, the second power connection port 115 is a male power connection port.

[0047] Refer to Figure 3 , when disassembly is required, a wireless Jacquard device to be disassembled can be directly removed from the comb bed 101, and power can be cut off instantly when the wireless Jacquard device is removed. The following explains the power cut-off process:

[0048] Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , between the second power connection port 115 of a wireless Jacquard device (wireless Jacquard device 104) and the first power connection port 114 of another wireless Jacquard device (wireless Jacquard device 103), it is also possible to achieve electrical connection in a plugging, magnetic attraction or pressing manner.

[0049] Between the male power connection port and the female power connection port, the ways to achieve electrical connection are pressure spring contact, thimble contact or round ball contact.

[0050] When the male power connection port is a conductive pressure spring, the female power connection port is a conductive plugging slot, and the way to achieve electrical connection is pressure spring contact.

[0051] Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , when installing, the bottom base 111 of a wireless Jacquard device (wireless Jacquard device 104) is closely adjacent to the bottom base 111 of another wireless Jacquard device (wireless Jacquard device 103), and the second power connection port 115 of a wireless Jacquard device (wireless Jacquard device 104) is closely adjacent to the first power connection port 114 of another wireless Jacquard device (wireless Jacquard device 103). Because the pressure spring of the male power connection port has elasticity, it can be directly inserted into the plugging slot of the female power connection port in a plugging manner, so that the pressure spring directly abuts against the plugging slot to achieve electrical connection, and then the bottom base 111 is locked on the comb bed 101 using the tail clip 122.

[0052] Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4, when disassembling, after loosening the locking screw on the tail clip 122, directly remove the wireless Jacquard device (wireless Jacquard device 104) from the comb bed 101. Since the pressure elastic piece of the male power connection port has elasticity, during the process of removing the wireless Jacquard device, the pressure elastic piece can be separated from the insertion slot by pulling out, thus achieving power-off.

[0053] When the male power connection port is a conductive thimble, the female power connection port is a conductive needle slot, and the thimble can be a conductive spring needle. The way to achieve electrical connection is thimble contact.

[0054] Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , when installing, the bottom base 111 of a wireless Jacquard device (wireless Jacquard device 104) is placed closely to the bottom base 111 of another wireless Jacquard device (wireless Jacquard device 103), and the second power connection port 115 of a wireless Jacquard device (wireless Jacquard device 104) is placed closely to the first power connection port 114 of another wireless Jacquard device (wireless Jacquard device 103). Since the thimble of the male power connection port can be directly inserted into the needle slot of the female power connection port in a plugging manner, electrical connection is achieved. Then, the bottom base 111 is locked on the comb bed 101 using the tail clip 122.

[0055] Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , when disassembling, after loosening the locking screw on the tail clip 122, during the process of removing the wireless Jacquard device, the thimble can be separated from the needle slot by pulling out, thus achieving power-off.

[0056] When the male power connection port is a conductive round ball, the female power connection port is a conductive ball slot, and the way to achieve electrical connection is round ball contact.

[0057] Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4, when installed, the bottom base 111 of a wireless jacquard device (wireless jacquard device 104) is next to the bottom base 111 of another wireless jacquard device (wireless jacquard device 103), and the second power connection port 115 of a wireless jacquard device (wireless jacquard device 104) is next to the first power connection port 114 of another wireless jacquard device (wireless jacquard device 103). Since the male power connection port is a round ball, it can be directly inserted into the ball groove of the female power connection port in a plugging manner, so that the round ball directly abuts against the ball groove to achieve electrical connection. After that, the bottom base 111 is locked on the comb bed 101 using the tail clamp 122.

[0058] Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , when disassembling, after loosening the locking screw on the tail clamp 122, directly remove this wireless jacquard device (wireless jacquard device 104) from the comb bed 101. In this way, during the process of removing the wireless jacquard device, the round ball of the male power connection port rolls out of the ball groove in a pulling-out manner, realizing the separation of the round ball from the ball groove, thereby achieving power-off.

[0059] When the male power connection port is a conductive magnetic connector, the female power connection port is a conductive magnetic connection groove, and the way to achieve electrical connection is magnetic contact.

[0060] Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , when installed, the bottom base 111 of a wireless jacquard device (wireless jacquard device 104) is next to the bottom base 111 of another wireless jacquard device (wireless jacquard device 103), and the second power connection port 115 of a wireless jacquard device (wireless jacquard device 104) is next to the first power connection port 114 of another wireless jacquard device (wireless jacquard device 103). Since the magnetic connector of the male power connection port has magnetism, it can be directly magnetically connected to the magnetic connection groove to achieve electrical connection. After that, the bottom base 111 is locked on the comb bed 101 using the tail clamp 122.

[0061] Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4, when disassembling, after loosening the locking screw on the tail clip 122, directly remove the wireless jacquard device (wireless jacquard device 104) from the comb bed 101. In this way, during the process of removing the wireless jacquard device, in a pulling-out manner, the magnetic connector can be separated from the magnetic connection slot, thereby achieving power-off.

[0062] For the specific details of the external controller in this embodiment, reference can be made to the reference documents provided in the background art (Chinese Patent Application No.: 201710030965.9, Publication No.: CN106757749B). Regarding the description of the CPU part, the CPU is the external controller in the prior art, and there are detailed records and explanations in this reference document, so it will not be elaborated here.

[0063] Refer to Figure 1 and Figure 7 , a plurality of first assembly holes 202 are provided at the rear of the bottom base 111, and a plurality of second assembly holes 201 are provided on the printed circuit board 113. The first assembly holes 202 are adapted to the second assembly holes 201. After using the screw 200 to pass through the second assembly hole, it is locked in the first assembly hole 202, so that the printed circuit board 113 is detachably installed on the rear of the bottom base 111.

[0064] Other structures are similar to those in Embodiment 1 and will not be elaborated here.

[0065] Embodiment 3, refer to Figure 1 and Figure 2 , the difference between this Embodiment 3 and Embodiment 1 is that: the jacquard driver 112 further includes a plurality of second wiring harnesses 117 provided in the printed circuit board 113. The second wiring harnesses 117 are used to connect the first power connection port 114 and the drive circuit 118. The second wiring harnesses 117 include a circuit for providing the required drive power to the drive circuit 118 and process signal lines.

[0066] Refer to Figure 1 , the first power connection port 114 includes at least one first housing 131 provided on the left side of the printed circuit board 113 and a plurality of conductive first antioxidant power connection terminals 132. The output ends of the first antioxidant power connection terminals 132 are soldered to the left side of the printed circuit board 113, so that the first housing 131 is fixedly installed on the left side of the printed circuit board 113.

[0067] Refer to Figure 1 and Figure 2 , the output ends of the first antioxidant power connection terminals 132 are electrically connected to the first wiring harness 116 and the second wiring harness 117 respectively, and the power connection ends of the first antioxidant power connection terminals 132 extend in the left direction of the first housing 131.

[0068] Refer toFigure 3 , the second power connection port 115 includes at least one second housing 141 disposed on the right side of the printed circuit board 113 and a plurality of conductive second antioxidant power connection terminals 142. The output ends of the second antioxidant power connection terminals 142 are soldered on the right side of the printed circuit board 113, so that the second housing 141 is fixedly installed on the right side of the printed circuit board 113.

[0069] Refer to Figure 2 and Figure 3 , the input ends of the second antioxidant power connection terminals 142 are electrically connected to the first flexible cable 116, and the power connection ends of the second antioxidant power connection terminals 142 extend toward the right side direction of the second housing 141.

[0070] Refer to Figure 1 , Figure 3 and Figure 4 , when the second power connection port 115 of a wireless Jacquard device (wireless Jacquard device 104) and the first power connection port 114 of another wireless Jacquard device (wireless Jacquard device 103) are detachably installed together in a plug-in manner, the first antioxidant power connection terminal 132 is electrically connected to the second antioxidant power connection terminal 142.

[0071] Refer to Figure 1 , the first antioxidant power connection terminal 132 includes at least one conductive first copper core layer and at least one first gold plating layer, and the first gold plating layer is plated on the first copper core layer.

[0072] Refer to Figure 1 , by providing the first gold plating layer, the first gold plating layer can protect the first copper core layer, play an antioxidant effect, thereby extending the service life of the first antioxidant power connection terminal 132, and enabling the first antioxidant power connection terminal 132 to maintain good electrical conductivity during long-term use.

[0073] Refer to Figure 3 , the second antioxidant power connection terminal 142 includes at least one conductive second copper core layer and at least one second gold plating layer, and the second gold plating layer is plated on the second copper core layer.

[0074] Refer to Figure 3 , by providing the second gold plating layer, the second gold plating layer can protect the second copper core layer, play an antioxidant effect, thereby extending the service life of the second antioxidant power connection terminal 142, and enabling the second antioxidant power connection terminal 142 to maintain good electrical conductivity during long-term use.

[0075] The copper core layer can also be replaced with a conductive copper sheet layer.

[0076] Other structures are similar to those of the first embodiment and will not be elaborated here.

[0077] Embodiment 4, referring to Figure 2 and Figure 5 , the difference between this Embodiment 4 and Embodiment 1 is that: the drive circuit 118 includes a power supply DC1, a power supply DC2, a resistor R1, a resistor R2, a resistor R3, a capacitor C1, a capacitor C2, a diode D1, a diode D2, a diode D3, a diode D4, a diode D5, a triode Q1, a triode Q2, a 5V power supply, and a control signal input terminal INPUT.

[0078] Referring to Figure 5 , one end of the resistor R3 is electrically connected to the 5V power supply, the other end of the resistor R3 is electrically connected to the base of the triode Q2, the control signal input terminal INPUT is electrically connected to the emitter of the triode Q2, the collector of the triode Q2, the cathode of the diode D5, the base of the triode Q1, and one end of the resistor R1 are commonly connected together, the base of the triode Q1, the other end of the resistor R1, and one end of the power supply DC1 are commonly connected together, the emitter of the triode Q1, the anode of the diode, and one end of the resistor R2 are commonly connected together, one end of the capacitor C2, the other end of the resistor R2, and the cathode of the diode D4 are commonly connected together, the anode of the diode D4 is electrically connected to the anode of the diode D3, the cathode of the diode D2, the cathode of the diode D3, one end of the capacitor C1, and the other end of the capacitor C2 are commonly connected together, the anode of the diode D2 is electrically connected to the anode of the diode D1, the cathode of the diode D1, the other end of the capacitor C1, the other end of the power supply DC1, and one end of the power supply DC2 are commonly connected together, and the other end of the power supply DC2 is grounded.

[0079] Referring to Figure 5 , by setting the diodes D1, D2, D3, D4 to form a circuit for capacitor charging and discharging, on the one hand, the common point between the capacitor C1 and the capacitor C2 does not need to be grounded, and on the other hand, the service life of the piezoelectric ceramic sheet 500 is linearly related to the forward voltage. When the piezoelectric ceramic sheet 500 bears the same voltage, when the charging direction is from C2 to C1, D1 and D2 share a part of the voltage to C1, so that the voltage borne by C2 decreases, but the force remains unchanged. When the charging direction is from C1 to C2, D1 and D2 share a part of the voltage to C2, so that the voltage borne by C1 decreases, but the force remains unchanged. The final result is that on the premise of the unchanged force, the forward voltage borne by the piezoelectric ceramic sheet 500 is reduced, and the service life of the piezoelectric ceramic sheet 500 is extended.

[0080] Referring to Figure 5 , the drive circuit 118 has the characteristics of few components and being convenient for integration, and has the positive and negative voltage driving functions for the piezoelectric ceramic sheet 500.

[0081] Referring to Figure 5, Diode D2 is a zener diode, and diode D3 is a zener diode.

[0082] Refer to Figure 5 , Capacitors C1 and C2 are respectively the equivalent capacitors of two piezoelectric ceramic plates 500. At any moment, only one of capacitors C1 and C2 is in the charging state, and the other is in the discharging state, causing the piezoelectric ceramic plate 500 to swing left and right.

[0083] Refer to Figure 5 , Power supply DC1 is a high-voltage DC power supply, and power supply DC2 is a high-voltage DC power supply.

[0084] Refer to Figure 2 、 Figure 5 and Figure 6 , The working principle of the drive circuit 118:

[0085] Refer to Figure 6 , 1. The input signal of the signal input terminal INPUT is input from the emitter (E terminal) of Q2, and this signal is a 5V TTL signal. When the control signal of the signal input terminal INPUT is at a high level, since the base (B terminal) of Q2 is connected to the 5V power supply through R3, at this time, the voltage difference between the E terminal and the B terminal of Q2 is 0, then Q2 will be in the cut-off state; the DC power supply DC1 supplies current to the base (B terminal) of Q1 through R1, and after being amplified by Q1, it flows out from the emitter (E terminal) of Q2, and then charges the piezoelectric ceramic plate 500 through R2. The resistor R2 is a current-limiting resistor here, which plays a role in limiting the charging current. Since Q2 is in the off state, DC2 has no effect at this time. Finally, the voltage direction in the figure is that point B is high and point C is low, and the charging direction is from B to C.

[0086] Refer to Figure 6 , 2. When the input control signal of the signal input terminal INPUT is at a low level, +5V flows through the base of Q2 through R3, and at this time Q2 will be in the conducting state; after Q2 conducts, its collector (C terminal) is approximately 0 when ignoring the Vce voltage drop of Q2. Therefore, under the clamping action of D5, Q1 will quickly enter the cut-off state. At this time, DC1 has no effect, and DC2 enters from point C, and through R2, Q2 charges the circuit reversely. Finally, the voltage direction in the figure is that point C is high and point B is low, and the charging direction is from C to B.

[0087] Refer to Figure 6, taking point B as the high point and point C as the low point, that is, taking the charging direction from B to C as an example. At this time, D4 is reverse-biased and ineffective. The charging voltage charges C2 and C1. Since D2 is a zener diode, when the voltage Vac of C1 is greater than the zener voltage value of D2, D2 will conduct, making the voltage Vac of C1 equal to the zener value of D2. Usually, the zener voltage of D2 is about 10 - 30V. So, C2 will form a normal high-voltage charge, while C1 is a negative low-voltage charge, and the sum of the two voltages is equal to the DC1 voltage. The reason and advantage of doing this are as follows: The life of the piezoelectric ceramic sheet 500 is linearly related to the forward voltage. The higher the voltage, the greater the swinging force but the shorter the life. After adding D1 - D4, when the piezoelectric ceramic sheet 500 bears the same voltage, D1 and D2 share part of the voltage to C1, causing the voltage borne by C2 to decrease, but the force remains unchanged. The final result is that, on the premise of the same force, the forward voltage borne by the piezoelectric ceramic sheet 500 is reduced, extending the service life of the piezoelectric ceramic sheet 500. Similarly, when C is the high point and B is the low point, the reasoning is the same. At this time, C1 releases negative pressure and instead bears positive high voltage, and C2 discharges through Q2 and shares part of the negative pressure. The process is the same as above.

[0088] Refer to Figure 1 , the piezoelectric jacquard element 102 includes at least one jacquard needle 130, at least one glass fiber sheet 502, two piezoelectric ceramic sheets 500 respectively wrapped on the left and right sides of the glass fiber sheet 502, and two copper foil electrical connection terminals 501 respectively arranged on the left and right sides of the glass fiber sheet 502. The two copper foil electrical connection terminals 501 are electrically connected to the tails of the corresponding piezoelectric ceramic sheets 500 together. The front part of the glass fiber sheet 502 is connected to the jacquard needle 130. The voltage output by the drive circuit 118 is applied to the piezoelectric ceramic sheet 500 to drive the piezoelectric ceramic sheet 500 to swing. The glass fiber sheet 502 is an insulating layer. The front end of the piezoelectric ceramic sheet 500 is provided with a jacquard needle 130. 16 jacquard needles 130 can be arranged on a bottom base 111 in a horizontal row. The specific number of jacquard needles 130 is determined according to the gauge of the warp knitting machine.

[0089] Other structures are similar to those in Embodiment 1 and will not be elaborated here.

[0090] Embodiment Five, refer to Figure 1 and Figure 3 , the difference between this Embodiment Five and Embodiment One is that: when there are 8 contacts in the first electrical connection port 114, there are also 8 contacts in the second electrical connection port 115. Specifically, the 8 contacts in the first electrical connection port 114 correspond one by one to the 8 electrical connection contacts in the second electrical connection port 115.

[0091] Other structures are similar to those in Embodiment 1 and will not be elaborated here.

[0092] Embodiment Six, refer toFigure 1 and Figure 7 In the sixth embodiment, the difference from the first embodiment is that the jacquard driver 112 further includes a plugging element 300. The rear part of the plugging element 300 and the printed circuit board 113 are connected together by welding, so that the input end of the plugging element 300 is electrically connected to the output end of the driving circuit 118. The output end of the plugging element 300 is detachably installed on the enabling end of the piezoelectric jacquard element 102 in a pluggable manner.

[0093] Referring to Figure 7 , in this embodiment, the power connection end of the specific piezoelectric jacquard element 102 is the copper foil power connection end 501 on the tail of the piezoelectric ceramic sheet 500. Copper foil power connection ends 501 are respectively provided on the left and right sides of the fiberglass sheet 502. One of the copper foil power connection ends 501 is the positive electrode, and the other copper foil power connection end 501 is the negative electrode.

[0094] Referring to Figure 7 , the plugging element 300 includes a fourth housing 301, a plurality of slots 302 provided in the fourth housing 301, a plurality of pads 303 provided in the slots 302, and a plurality of conductive fourth antioxidant layers 304.

[0095] Referring to Figure 7 , a fourth antioxidant layer 304 is provided on each pad 303. The slot 302 penetrates through the interior of the fourth housing 301 from the front of the fourth housing 301 and finally extends to the rear of the fourth housing 301. The rear end of the fourth antioxidant layer 304 is provided on the rear of the fourth housing 301, and the front end of the fourth antioxidant layer 304 extends into the slot 302. Specifically, two fourth antioxidant layers 304 are provided in one slot 302. One fourth antioxidant layer 304 serves as the positive electrode, and the other fourth antioxidant layer 304 serves as the negative electrode.

[0096] Referring to Figure 1 and Figure 7 , the fourth housing 301 is detachably installed on the power connection end of the piezoelectric jacquard element 102 in a plugging manner, so that the copper foil power connection end 501 is respectively electrically connected to the corresponding fourth antioxidant layer 304. The rear end of the fourth antioxidant layer 304 is electrically connected to the driving circuit 118 through the printed circuit board 113, so that the copper foil power connection end 501 is electrically connected to the printed circuit board 113, thereby enabling the driving circuit 118 to drive the jacquard needle 130 of the piezoelectric jacquard element 102 to swing.

[0097] Referring to Figure 7 , after the first power connection port 114, the printed circuit board 113, the second power connection port 115, the third power connection port 120, and the plugging element 300 are electrically connected together by welding respectively, they form an inseparable whole, improving the integration and facilitating the disassembly and replacement of 600.

[0098] Referring to Figure 1 , Figure 4 and Figure 7 , in this embodiment, the specific printed circuit board 113 includes a first printed circuit board body 321 and a second printed circuit board body 322. The drive circuit 118 is disposed on the first printed circuit board body 321. The first power connection port 114 is welded on the left side of the first printed circuit board body 321. The second power connection port 115 is welded on the right side of the first printed circuit board body 321. The third power connection terminal is welded on the tail of the first printed circuit board body 321. The second assembly hole 201 is disposed on the first printed circuit board body 321. The rear part of the second printed circuit board body 322 is welded on the front part of the first printed circuit board 113. The front part of the second printed circuit board 113 is welded on the pad 303. The first printed circuit board body 321 and the second printed circuit board body 322 are welded together to form an inseparable whole, which improves the integration and is convenient for disassembly and replacement (for the shape of this whole that improves the integration and is convenient for disassembly and replacement, refer to Figure 1 , Figure 4 and Figure 7 as shown).

[0099] Other structures are similar to those in the first embodiment and will not be elaborated here.

[0100] Embodiment Seven, referring to Figure 8 , the difference between this Embodiment Seven and the first embodiment is that: for the first gold plating layer, the first gold plating layer is plated on the first copper core layer by the immersion gold method; for the second gold plating layer, the second gold plating layer is plated on the second copper core layer by the immersion gold method; for the third gold plating layer, the third gold plating layer is plated on the third copper core layer by the immersion gold method.

[0101] Immersion nickel and gold uses a chemical method to first deposit a layer of nickel on the circuit board and then deposit a layer of gold; its purpose is to improve the contact resistance and corrosion resistance of the copper layer surface. Even when the circuit works under high temperature and high humidity, the gold surface layer will not be oxidized, which can ensure good contact between the circuit board and the socket; since direct gold plating on the copper surface will form a loose state due to the diffusion of the copper-gold interface and form copper salts in the air, affecting reliability, a layer of metal nickel layer needs to be plated on the substrate first, which can effectively prevent the mutual diffusion of copper and gold, and at the same time can improve the adhesion and wear resistance of the gold plating layer. A barrier layer can also be formed between the nickel layer and the gold layer to control the generation of metal intermetallic compounds.

[0102] The immersion gold method includes the following steps:

[0103] Step S100, Pretreatment before nickel immersion: During feeding, the surface is first cleaned with an acidic cleaner to remove the copper surface oxides. After water washing, the copper surface is micro-etched with sulfuric acid and sodium persulfate. After sulfuric acid pre-immersion, the copper surface is activated with a palladium activation solution, and then nickel immersion and gold immersion are carried out.

[0104] Step S200, Nickel immersion: In an electroless nickel plating solution with sodium hypophosphite (25 - 30 g / L) as the reducing agent, when the hypophosphite ion H2PO2~ exists in the presence of a catalyst (such as Pd, Fe), highly active atomic hydrogen will be released. The operating temperature of the nickel immersion process is 85 - 90 °C, and the pH is 5.3 - 5.7. The chemical reaction formula for nickel immersion is as follows:

[0105] Step S201, Nickel recovery: The waste liquid in the electroless nickel plating tank is regularly recovered by the recovery equipment set beside the tank, and then connected to a secondary rinsing tank. The cleaning water contains a high concentration of heavy metal nickel. When continuously overflowing, nickel is recovered through a resin adsorption equipment, and the discharged nickel-containing wastewater is treated separately.

[0106] Step S300, Gold immersion: Gold immersion is also called immersion gold and displacement gold. The main components of gold immersion are Au (1.5 - 3.5 g / L) and a binder, which can displace a pure gold plating solution on the nickel-phosphorus alloy layer to make the coating smooth and delicate. The pH of the plating solution for the gold immersion process is 4 - 5, and the temperature is controlled at 85 - 90 °C. Its mechanism is a displacement reaction:

[0107] Step S400, Post-treatment after gold immersion: It is mainly a citric acid pickling process to prevent surface oxidation.

[0108] Other structures are similar to those in Embodiment 1 and will not be elaborated here.

[0109] The above is only the specific implementation manner of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantive modification made to the present invention using this concept shall fall within the scope of infringement of the protection scope of the present invention.

Claims

1. A wireless jacquard device that can be individually debugged, comprising at least one bottom base, a plurality of piezoelectric jacquard elements arranged on the front part of the bottom base, and at least one jacquard driver arranged on the rear part of the bottom base. The jacquard driver includes at least one driving circuit controlled by an external controller, and the driving circuit is used to drive the jacquard needles of the piezoelectric jacquard elements to swing, so as to realize the jacquard yarn guiding action, and is characterized in that: The jacquard driver further includes at least one printed circuit board, at least one third power connection port provided at the tail of the printed circuit board, and a third cable provided within the printed circuit board. The third cable is used to connect the third power connection port and the drive circuit. The third cable includes a circuit for supplying the required drive power to the drive circuit and process signal lines. When adjusting the needle pitch, the third power connection port is powered on, and when normally guiding the yarn for jacquard, the third power connection port is not powered on.

2. The wireless Jacquard jacquard device capable of being separately debugged according to claim 1, characterized in that: The third power connection port includes a plurality of conductive third anti-oxidation power connection terminals. The output end of the third anti-oxidation power connection terminal is electrically connected to the third cable, and the output end of the third anti-oxidation power connection terminal is welded to the tail of the printed circuit board.

3. The wireless Jacquard device capable of independent debugging according to claim 2, characterized in that: The third power connection port includes at least one third outer shell provided at the tail of the printed circuit board. The third outer shell is fixedly installed at the tail of the printed circuit board, and the input end of the third anti-oxidation power connection terminal is provided within the third outer shell.

4. The wireless Jacquard device capable of independent debugging according to claim 2, wherein: The third anti-oxidation power connection terminal includes at least one conductive third copper core layer and at least one third gold plating layer. The third gold plating layer is plated on the third copper core layer.

5. The wireless Jacquard device capable of separate debugging according to claim 1, wherein: The jacquard driver further includes at least one first power connection port, at least one second power connection port, and a first cable provided within the printed circuit board. The drive circuit is provided on the printed circuit board. The first cable includes a circuit for supplying the required drive power to the drive circuit and process signal lines. The first cable is used to connect the first power connection port and the second power connection port. The first power connection port is provided on the left side of the printed circuit board, and the second power connection port is provided on the right side of the printed circuit board.

6. The wireless Jacquard device capable of independent debugging according to claim 5, characterized in that: The jacquard driver further includes a second cable provided within the printed circuit board. The second cable is used to connect the first power connection port and the drive circuit. The second cable includes a circuit for supplying the required drive power to the drive circuit and process signal lines.

7. The wireless jacquard device capable of independent debugging according to claim 5, characterized in that: The output end of the first power connection port is welded to the left side of the printed circuit board in a welding manner, so that the first power connection port is fixedly installed on the left side of the printed circuit board. The input end of the second power connection port is welded to the right side of the printed circuit board in a welding manner, so that the second power connection port is fixedly installed on the right side of the printed circuit board.

8. The wireless Jacquard device capable of independent debugging according to claim 7, wherein: After the first power connection port, the printed circuit board, the second power connection port, and the third power connection port are electrically connected to each other in a welding manner respectively, they form an inseparable whole.

9. A warp knitting machine, characterized in that: The warp knitting machine includes at least one wireless jacquard device, and the wireless jacquard device is the wireless jacquard device according to any one of claims 1 to 8.

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