A stable high speed warp knitting machine

Abstract

A kind of stable high-speed warp knitting machine using, including at least one guide bar bed and multiple jacking guide bar body, at least one second installation slot, at least one insulating slot, at least one second power supply terminal, second power supply terminal includes at least one first printed circuit board substrate, at least one positive electrode conductive unit, at least one negative electrode conductive unit and at least two signal lines.In the present application, by setting first printed circuit board substrate, at least one positive electrode conductive unit, at least one negative electrode conductive unit and at least two signal lines, under the premise that the space in insulating slot is limited, positive electrode conductive unit and negative electrode conductive unit are used to power jacking guide bar body, signal line is used to transmit control signal sent by RS485 communication bus to jacking guide bar body, the effect of power supply and transmission of a large number of control signal is realized and the speed of control signal transmission can meet the requirement of high-speed warp knitting machine to a large number of data transmission.

Description

Technical Field

[0001] This invention relates to the field of warp knitting machines, and in particular to a high-speed warp knitting machine that operates stably. Background Technology

[0002] Warp knitting machines are the main machines for producing mesh decorative fabrics. Since their invention in 1884, the jacquard device of the jacquard warp knitting machine has evolved from mechanical to electromagnetic and now piezoelectric. Currently, the most widely used jacquard devices on the market include wire jacquard and piezoelectric ceramic jacquard.

[0003] Currently, the operating voltage of the control circuit board is 5V, while the operating voltage of the drive circuit board is 170V to 200V. Therefore, when there is only one 5V power supply line to power the control circuit board, a boost circuit is required to boost the voltage to 170V to 200V before it can be supplied to the drive circuit board. This increases the area of ​​the circuit board on the Jacquard comb and adds electrical components. When the boost circuit fails, it will also affect the normal operating efficiency of the Jacquard comb.

[0004] The applicant's earlier Chinese utility model patent (application number: 201922124965.2, publication number: CN211947458U) disclosed a power supply connection structure for a Jacquard comb of a warp knitting machine. During actual use, the applicant found that the Jacquard comb of the earlier application could not meet the needs of a high-speed warp knitting machine with a control signal transmission speed and data volume of 2500-3000 revolutions per minute. However, given that the space size in the insulation groove is fixed, it is difficult to set up more signal lines for transmitting control signals sent by the RS485 communication bus. Summary of the Invention

[0005] This invention provides a stable high-speed warp knitting machine, the main purpose of which is to overcome the defect that it is difficult to set more signal lines for transmitting control signals sent by RS485 communication bus under the premise that the space size inside the insulation groove is fixed.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A high-speed warp knitting machine with stable operation includes at least one guide bar bed and a plurality of Jacquard guide bar bodies disposed on the guide bar bed, at least one second mounting slot disposed on the guide bar bed and at least one insulating slot disposed in the second mounting slot, and further includes at least one second power supply terminal disposed in the insulating slot. The second power supply terminal includes at least one first printed circuit board substrate, at least one positive conductive unit, at least one negative conductive unit and at least two signal lines. The positive conductive unit and the negative conductive unit are used to supply power to the Jacquard guide bar bodies, and the signal lines are used to transmit control signals sent by an RS485 communication bus to the Jacquard guide bar bodies.

[0007] Furthermore, the jacquard comb body includes at least one drive circuit board, at least one control circuit board, at least two first power terminals disposed on the drive circuit board, at least one second power terminal disposed on the control circuit board, at least one first power line, and at least one second power line. The first power line supplies power to the drive circuit board through the first power terminal, and the second power line supplies power to the control circuit board through the second power terminal. The voltage of the first power line is greater than the voltage of the second power line.

[0008] Furthermore, the Jacquard comb body includes at least one drive circuit board, a first power connection terminal disposed on the drive circuit board, and a first power line for supplying power to the drive circuit board. A plurality of the first power connection terminals are all electrically connected in parallel with the first power line, such that the first power line is electrically connected in parallel with a plurality of the Jacquard comb bodies through a plurality of the first power connection terminals.

[0009] Furthermore, it also includes at least one second power line. The Jacquard comb body includes at least one control circuit board and at least two second power terminals disposed on the control circuit board. A plurality of the control circuit boards are electrically connected in parallel with the second power line, such that the second power line is electrically connected in parallel with a plurality of the Jacquard comb bodies through a plurality of second power terminals.

[0010] Furthermore, it also includes at least one electronic DIP switch module disposed on the driver circuit board and electrically connected to the driver circuit. The electronic DIP switch module is used to set the communication address of the driver circuit board. The electronic DIP switch module includes at least one debugger for setting the communication address, at least one DIP switch key panel electrically connected to the debugger, at least one display electrically connected to the debugger, at least one signal output port electrically connected to the debugger, and at least one plug-in port disposed on the driver circuit board. The signal output port is pluggably connected to the plug-in port. The DIP switch key panel is used to input address selection commands, and the display is used to display the address selection commands input from the DIP switch key panel to the debugger.

[0011] Furthermore, the first power connection terminal includes at least one fixing part disposed on one side of the drive circuit board and at least one female head disposed on the other side of the drive circuit board. The first power line includes a first power line body that is electrically connected to the drive circuit board at one end through the fixing part and a male head disposed at the other end of the first power line body. Two adjacent drive circuit boards are pluggably connected to the female head through the male head, so that the two adjacent drive circuit boards are respectively electrically connected in parallel to the first power line body.

[0012] Furthermore, the positive conductive unit, the two signal lines, and the negative conductive unit are all arranged at relative intervals, and the two signal lines are both located between the positive conductive unit and the negative conductive unit.

[0013] Furthermore, two adjacent first printed circuit board substrates are welded together by a plurality of solder rods. The solder rods are located on the back of the first printed circuit board substrates. The two adjacent positive conductive units are connected by welding with the solder rods, the two adjacent negative conductive units are connected by welding with the solder rods, and the two adjacent signal lines are connected by welding with the solder rods.

[0014] Furthermore, it includes at least one clamping member for clamping the comb base and the comb bed together, at least one first assembly part disposed on the rear of the comb base, and at least one second assembly part disposed on the rear of the comb bed and adapted to the first assembly part. One side of the clamping member wraps around the comb base, and the other side of the clamping member wraps around the comb bed, so that the clamping member, the comb base, and the comb bed are assembled into one unit. The rear end of the comb base is detachably mounted on the clamping member, and the rear end of the comb bed is detachably mounted on the clamping member. The lower side of the first assembly part and the upper side of the second assembly part are detachably abutted against each other. One end of the clamping member wraps around the upper side of the first assembly part, and the other end of the clamping member wraps around the lower side of the second assembly part, so that the first assembly part and the second assembly part are connected into one unit.

[0015] Furthermore, the driving circuit on the driving circuit board includes at least one power supply VCC, at least one signal input terminal INPUT, at least one transistor Q1, and at least one transistor Q2. Transistor Q1 and transistor Q2 are combined to form a first surface-mount dual transistor. The signal input terminal INPUT is connected to the input terminal of the first surface-mount dual transistor. The output terminal of the first surface-mount dual transistor is electrically connected to the piezoelectric ceramic phase. The power supply VCC supplies power to transistors Q1 and Q2 respectively.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention has a simple structure and strong practicality. By setting a first printed circuit board substrate, at least one positive conductive unit, at least one negative conductive unit, and at least two signal lines, under the premise of limited space in the insulating groove, both the positive and negative conductive units are used to supply power to the Jacquard comb body, and the signal lines are used to transmit control signals sent by the RS485 communication bus to the Jacquard comb body. This achieves the effect of power supply and transmission of a large number of control signals, and the speed of control signal transmission can meet the requirements of high-speed warp knitting machines for large data transmission.

[0017] In this invention, by setting the drive circuit board and the control circuit board to be relatively spaced apart, on the one hand, the drive circuit board and the control circuit board are separated, so that the heat generated by the circuit of the drive circuit board and the heat generated by the circuit of the control circuit board do not affect each other, thus extending their service life. On the other hand, by separating the drive circuit board and the control circuit board, the first power line and the second power line are independently set for independent power supply, which improves the stability of the drive circuit board and the control circuit board, extends their service life, and removes the boost circuit structure, thereby reducing the area occupied by the circuit, achieving two benefits at once.

[0018] In this invention, by setting multiple first power supply terminals to be connected in parallel with the first power supply line, on the one hand, when the drive circuit on one drive circuit board fails, it will not affect the normal operation of other drive circuit boards, so that each Jacquard comb body can continue to work independently, thereby reducing the production losses caused by the failure of a single drive circuit board and improving the stability of the Jacquard comb body operation.

[0019] In this invention, by setting multiple second power supply terminals that are all connected in parallel with the second power supply line, when the control circuit on one control circuit board fails, it will not affect the normal operation of other control circuit boards, so that each Jacquard comb body can continue to work independently, thereby reducing the production losses caused by the failure of a single control circuit board and improving the stability of the Jacquard comb body operation.

[0020] In this invention, by setting a first power connection terminal and a second power connection terminal, on the one hand, the voltage of the first power line is greater than the voltage of the second power line, thereby removing the circuit structure of the boost circuit, reducing the circuit area of ​​the drive circuit board or control circuit board, making the circuit structure on the wireless Jacquard comb simpler, thus reducing the overall size and weight of the wireless Jacquard comb. On the other hand, by using an independent power supply method, the drive circuit board and the control circuit board are separated and set up independently. The first power line supplies power to the drive circuit board alone, and the second power line supplies power to the control circuit board alone, which improves the stability of the operation of the drive circuit board and the control circuit board and extends their service life, achieving a dual benefit.

[0021] In this invention, by setting the voltage of the first power line input to the first power terminal to 170V~200V and the voltage of the second power line input to the second power terminal to 5V, the high voltage and low voltage are separated, so that the drive circuit board and the control circuit board are not affected by each other, thereby improving the stability of the drive circuit board and the control circuit board.

[0022] In this invention, by setting a first printed circuit board substrate, a positive conductive unit, a negative conductive unit, and two signal lines, on the one hand, by placing the positive conductive unit, the negative conductive unit, and the two signal lines on the first printed circuit board substrate, the effect of setting four wires in a small space is achieved. At the same time, it meets the requirement that the RS485 communication bus needs to use two signal lines to transmit control signals, so that the amount of data transmitted at the second power connection terminal is larger, which meets the requirement of the warp knitting machine to transmit a large amount of data at high speeds. On the other hand, the first printed circuit board substrate has high hardness and long service life. Setting only the positive conductive unit, the negative conductive unit, and the two signal lines on the first printed circuit board substrate improves the stability of the control signal transmission of the RS485 communication bus in the signal lines and reduces the signal interference of other circuits to the control signal of the RS485 communication bus, achieving two benefits at once.

[0023] In this invention, by placing the fixing part, the female head of the first power cord body, and the male head on the back of the drive circuit board, the front of the drive circuit board can be used to set the drive circuit, thereby not affecting the existing arrangement structure of the drive circuit on the front of the drive circuit board. Attached Figure Description

[0024] Figure 1 An exploded view of the Jacquard comb itself.

[0025] Figure 2 This is a schematic diagram of the electronic DIP switch module.

[0026] Figure 3This is a schematic diagram of the second power supply connection terminal.

[0027] Figure 4 This is a schematic diagram of the back of the second power supply terminal.

[0028] Figure 5 This is a schematic diagram of the first power supply terminal.

[0029] Figure 6 This is a schematic diagram of the comb base.

[0030] Figure 7 for Figure 6 A schematic diagram of the structure of part A.

[0031] Figure 8 This is the circuit diagram for Example 6.

[0032] Figure 9 This is the circuit diagram for Example 7. Detailed Implementation

[0033] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0034] Example 1, refer to Figure 1 and Figure 3 A high-speed warp knitting machine with stable operation includes at least one comb bed 2 and a plurality of jacquard comb bodies 51 disposed on the comb bed 2, at least one second mounting groove 19 disposed on the comb bed 2, at least one insulating groove 214 disposed in the second mounting groove 19, and at least one second power supply terminal 60 disposed in the insulating groove 214.

[0035] Reference Figure 1 and Figure 3 The second power supply terminal 60 includes at least one first printed circuit board substrate 61, at least one positive conductive unit 62, at least one negative conductive unit 65, and at least two signal lines 63. Both the positive conductive unit 62 and the negative conductive unit 65 are used to supply power to the jacquard comb body 51. The signal lines 63 are used to transmit control signals sent via an RS485 communication bus to the jacquard comb body 51. The first printed circuit board substrate 61 is a printed circuit board.

[0036] Reference Figure 1 and Figure 3 The positive conductive unit 62, the two signal lines 63, and the negative conductive unit 65 can all be copper wires or copper sheets, and the copper sheets can be long strips of copper.

[0037] Reference Figure 1The comb bed 2 includes a fixed base 15 located below the comb base 1, a mounting groove 16 located in the fixed base 15, a positioning groove 17 located on the rear of the fixed base 15, at least one second protrusion 14 located on the front end of the fixed base 15 at an incline, at least one second ramp portion 11 located on the second protrusion 14 at an incline and adapted to the first ramp portion 22, at least one fourth clamping portion 36 located on the lower side of the second assembly portion 24 at an incline, and at least one insulating groove 214 located in the second mounting groove 19.

[0038] Reference Figure 1 The second mounting groove 19 is located on the upper part of the fixed base 15. When the comb base 1 is assembled on the comb bed 2, the second mounting groove 19 is located below the first mounting groove 18. The opening of the second mounting groove 19 is located on the comb bed 2 facing the comb base 1.

[0039] Reference Figure 1 and Figure 6 By setting a first printed circuit board substrate 61, at least one positive conductive unit 62, at least one negative conductive unit 65, and at least two signal lines 63, under the premise of limited space in the insulating groove 214, both the positive conductive unit 62 and the negative conductive unit 65 are used to supply power to the Jacquard comb body, and the signal lines are used to transmit control signals sent by the RS485 communication bus to the Jacquard comb body. This achieves the effect of power supply and transmission of a large number of control signals, and the speed of control signal transmission can meet the requirements of high-speed warp knitting machines for large data transmission.

[0040] Example 2, refer to Figure 1 The difference between this second embodiment and the first embodiment is that the wireless jacquard device includes at least one piezoelectric ceramic element 3 for driving the jacquard comb body 51 to swing the jacquard needle assembly 5, and at least one control circuit board 67 for driving the drive circuit board 4. By using the drive circuit board 4 and the control circuit board 67 to be arranged relatively at intervals, power is supplied to the drive circuit board 4 and the control circuit board 67 separately.

[0041] Reference Figure 1 The drive circuit board 4 and the control circuit board 67 are arranged at a distance from each other on the comb base 1. By setting the drive circuit board 4 and the control circuit board 67 at a distance from each other, on the one hand, the drive circuit board 4 and the control circuit board 67 are separated, so that the heat generated by the circuit of the drive circuit board 4 and the control circuit board 67 during operation do not affect each other, thus extending their service life. On the other hand, the drive circuit board 4 and the control circuit board 67 are separated and independently powered by the first power line 412 and the second power line 77, which improves the stability of the drive circuit board 4 and the control circuit board 67 and extends their service life, thus achieving two benefits at once.

[0042] Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0043] Example 3, referring to Figure 1 and Figure 2 The difference between this embodiment 3 and embodiment 1 is that the Jacquard comb body 51 further includes at least one electronic DIP switch module 81 disposed on the drive circuit board 4 and electrically connected to the drive circuit 87. The electronic DIP switch module 81 is used to set the communication address of the drive circuit board 4.

[0044] Reference Figure 2 By setting up the electronic DIP switch module 81, compared with the mechanical manual DIP switch, the electronic DIP switch module 81 occupies less space on the driver circuit board 4, has lower cost, longer service life, more accurate DIP switch effect, and is easier to debug, reducing the debugging difficulty when setting the communication address.

[0045] Reference Figure 2 The electronic DIP switch module 81 includes at least one plug-in port 86 disposed on the drive circuit board 4 and at least one address DIP switch unit that is pluggably mounted on the plug-in port 86. The output terminal of the plug-in port 86 is electrically connected to the enable terminal of the drive circuit 87.

[0046] Reference Figure 2 By setting up a plug-in port 86 and a pluggable address switch unit on the plug-in port 86, the electronic switch module 81 occupies only the space of one plug-in port 86 on the drive circuit board 4. Compared with mechanical manual switch, it occupies less space. When the address switch unit is damaged, it can be directly replaced by plugging and unplugging. The drive circuit board 4 can be reused, reducing the maintenance cost of the drive circuit board 4 in the later stage.

[0047] Reference Figure 2 The address DIP unit includes at least one debugger 85 for setting the communication address, at least one DIP keypad 84 electrically connected to the debugger 85, at least one display 83 electrically connected to the debugger 85, and at least one signal output port electrically connected to the debugger 85. The signal output port is pluggably connected to the plug-in port 86. The DIP keypad 84 is used to input address selection commands, and the display 83 is used to display the address selection commands input from the DIP keypad 84 to the debugger 85.

[0048] Reference Figure 2By setting the DIP switch panel 84 to input address selection commands, and the display 83 to display the address selection commands input from the DIP switch panel 84 to the debugger 85, the user can see the set address selection commands on the display 83, which helps the user to judge whether the address selection result is correct and make timely changes, greatly improving work efficiency and reducing the difficulty of setting communication addresses.

[0049] Reference Figure 2 The electronic DIP switch module 81 is an electronic address selector.

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

[0051] Example 4, refer to Figure 1 , Figure 3 , Figure 4 and Figure 5 The difference between this fourth embodiment and the first embodiment is that it includes a plurality of Jacquard comb bodies 51. Each Jacquard comb body 51 includes at least one comb base 1, a plurality of Jacquard needle assemblies 5 spaced apart on the comb base 1, a plurality of piezoelectric ceramic elements 3 for driving the Jacquard needle assemblies 5 to oscillate, at least one drive circuit board 4 electrically connected to the piezoelectric ceramic elements 3, at least two first power terminals 411 on the drive circuit board 4, at least one first power line 412, at least one second power line 77, at least one control circuit board 67 for driving the drive circuit board 4, and at least two second power terminals 60 on the control circuit board 67. The voltage of the first power line 412 is greater than the voltage of the second power line 77. The voltage of the first power line 412 is 170V to 200V, and the voltage of the second power line 77 is 5V. The drive circuit board 4 is used to drive the deformation of the piezoelectric ceramic elements 3.

[0052] Reference Figure 1 and Figure 5 Each of the plurality of first power supply terminals 411 is connected in parallel with the first power line 412, so that the first power line 412 is connected in parallel with the plurality of Jacquard comb bodies 51 through the plurality of first power supply terminals 411.

[0053] Reference Figure 1 and Figure 5 By setting multiple first power supply terminals 411 that are all connected in parallel to the first power supply line 412, on the one hand, when the drive circuit 87 on one drive circuit board 4 fails, it will not affect the normal operation of other drive circuit boards 4, so that each Jacquard comb body 51 can continue to work independently, thereby reducing the production losses caused by the failure of a single drive circuit board 4 and improving the stability of the Jacquard comb body operation.

[0054] Reference Figure 1 and Figure 3Each of the plurality of control circuit boards 67 corresponding to the plurality of Jacquard comb bodies 51 is electrically connected in parallel with the second power line 77, so that the second power line 77 is electrically connected in parallel with the plurality of Jacquard comb bodies 51 through the plurality of second power terminals 60.

[0055] Reference Figure 1 and Figure 3 By setting multiple second power supply terminals 60 that are all connected in parallel to the second power supply line 77, when the control circuit on one control circuit board 67 fails, it will not affect the normal operation of other control circuit boards 67, so that each Jacquard comb body 51 can continue to work independently, thereby reducing the production losses caused by the failure of a single control circuit board 67 and improving the stability of the Jacquard comb body operation.

[0056] Reference Figure 1 , Figure 3 and Figure 5 By setting a first power connection terminal 411 and a second power connection terminal 60, on the one hand, the voltage of the first power line 412 is greater than the voltage of the second power line 77, thereby removing the circuit structure of the boost circuit and reducing the circuit area of ​​the drive circuit board 4 or the control circuit board 67. This makes the circuit structure on the Jacquard comb body 51 simpler, thus reducing the overall size and weight of the Jacquard comb body 51. On the other hand, by providing independent power to each, the stability of the operation of the drive circuit board 4 and the control circuit board 67 is improved, and their service life is extended, achieving a double benefit.

[0057] Reference Figure 5 The first power supply terminal 411 includes at least one fixing part 74 disposed on one side of the drive circuit board 4 and at least one female head 72 disposed on the other side of the drive circuit board 4.

[0058] Reference Figure 5 The first power cord 412 includes a first power cord body 76, one end of which is electrically connected to the drive circuit board 4 via a fixing part 74, and a male head 71 disposed on the other end of the first power cord body 76.

[0059] Reference Figure 5 The two adjacent drive circuit boards 4 are plugged into the female head 72 via the male head 71, which allows the two adjacent drive circuit boards 4 to be electrically connected in parallel with the first power line body 76, and allows the user to flexibly adjust the distance between the two drive circuit boards 4 as needed.

[0060] Reference Figure 5The fixing part 74 includes a housing and a conductive sheet that extends outward from the housing. The housing is fixed on the drive circuit board 4 so that the conductive sheet is electrically connected to the drive circuit board 4. The female head 72 is provided with a buckle 79 and the male head 71 is provided with a slot 78. By the buckle 79 being fastened to the slot 78, the female head 72 can be plugged into the male head 71. The male head 71 and the female head 72 are connected to form a conductive connector.

[0061] Reference Figure 5 The fixing part 74, the female head 72 and the male head 71 of the first power cord body 76 are all located on the back of the drive circuit board 4.

[0062] Reference Figure 5 By placing the fixing part 74, the female head 72 and the male head 71 of the first power cord body 76 on the back of the drive circuit board 4, the front of the drive circuit board 4 can be used to set the drive circuit 87, so as not to affect the existing arrangement structure of the drive circuit 87 on the front of the drive circuit board 4.

[0063] Reference Figure 5 and Figure 2 By setting the voltage of the first power line 412 input to the first power terminal 411 to 170V~200V and the voltage of the second power line 77 input to the second power terminal 60 to 5V, the high voltage and low voltage are separated, so that the drive circuit board 4 and the control circuit board 67 are not affected by each other, thereby improving the stability of the drive circuit board 4 and the control circuit board 67.

[0064] Reference Figure 3 and Figure 4 The second power supply terminal 60 also includes a plurality of shock-absorbing cotton blocks spaced apart on the back side of the first printed circuit board substrate 61.

[0065] Reference Figure 3 and Figure 4 Signal line 63 is used to transmit control signals from an external RS485 communication bus. In this embodiment, one side of the positive conductive unit 62 is electrically connected to the positive terminal of a second power line 77, and the other side of the positive conductive unit 62 is electrically connected to the positive terminal of a second power terminal 60. One side of the negative conductive unit 65 is electrically connected to the negative terminal of the second power line 77, and the other side of the negative conductive unit 65 is electrically connected to the negative terminal of the second power terminal 60. One side of the signal line 63 is electrically connected to an external RS485 communication bus, and the other side of the signal line 63 is connected to a control circuit board 67, so that the signal line 63 is used to transmit control signals from the external RS485 communication bus to the control circuit board 67.

[0066] Reference Figure 3 and Figure 4By setting a first printed circuit board substrate 61, a positive conductive unit 62, a negative conductive unit 65, and two signal lines 63, on the one hand, by placing the positive conductive unit 62, the negative conductive unit 65, and the two signal lines 63 on the first printed circuit board substrate 61, the effect of setting four wires in a small space is achieved. At the same time, it meets the requirement that the RS485 communication bus needs to use two signal lines 63 to transmit control signals, so that the amount of data transmitted at the second power connection terminal is larger, which meets the requirement of the warp knitting machine to transmit a large amount of data at high speed. On the other hand, the first printed circuit board substrate 61 has high hardness and long service life. Setting only the positive conductive unit 62, the negative conductive unit 65, and the two signal lines 63 on the first printed circuit board substrate 61 improves the stability of the control signal transmission of the RS485 communication bus in the signal lines 63 and reduces the signal interference of other circuits to the control signal of the RS485 communication bus, achieving two benefits at once.

[0067] Reference Figure 3 and Figure 4 Two adjacent first printed circuit board substrates 61 are soldered together by a plurality of solder rods 66. Two adjacent positive conductive units 62 are connected by soldering with solder rods 66, two adjacent negative conductive units 65 are connected by soldering with solder rods 66, and two adjacent signal lines 63 are connected by soldering with solder rods 66.

[0068] Reference Figure 3 and Figure 4 The positive conductive unit 62 is used to connect to the positive terminal of an external power supply, and the negative conductive unit 65 is used to connect to the negative terminal of the external power supply. The voltage of the external power supply is 5V.

[0069] Reference Figure 3 and Figure 4 The positive conductive unit 62, the two signal lines 63 and the negative conductive unit 65 are all arranged at relative intervals, and the two signal lines 63 are both located between the positive conductive unit 62 and the negative conductive unit 65.

[0070] Reference Figure 3 and Figure 4 By setting two signal lines 63 between the positive conductive unit 62 and the negative conductive unit 65, the positive conductive unit 62 and the negative conductive unit 65 isolate the signal lines 63, resulting in better isolation and making the control signals of the RS485 communication bus transmitted by the signal lines 63 more stable.

[0071] Reference Figure 3 and Figure 4Two adjacent first printed circuit board substrates 61 are soldered together by a plurality of solder rods 66. Two adjacent positive conductive units 62 are connected by soldering with solder rods 66, two adjacent negative conductive units 65 are connected by soldering with solder rods 66, and two adjacent signal lines 63 are connected by soldering with solder rods 66.

[0072] Reference Figure 3 and Figure 4 By setting two adjacent first printed circuit board substrates 61 to be welded together by a plurality of solder rods 66, the length of the first printed circuit board substrate 61 is extended, thereby allowing for longer positive conductive units 62, negative conductive units 65, and signal lines 63 to provide power and signal transmission to more wireless Jacquard combs. On the other hand, using solder rods 66 to weld them together improves the strength of the connection while meeting the requirements of conductivity and signal transmission, achieving a dual benefit.

[0073] Reference Figure 3 and Figure 4 The solder rod 66 can be disposed on the back side of the first printed circuit board. Disposing the solder rod 66 on the back side of the first printed circuit board improves the flatness of the front side of the first printed circuit board and achieves the extension and conductivity of the first printed circuit board. On the other hand, it has no impact on the first conductive pin 222, the second conductive pin 242 and the third conductive pin 232 when they draw power and receive signals at the second power supply terminal 60, thus achieving two benefits at once.

[0074] Reference Figure 3 and Figure 4 The first printed circuit board substrate 61 is a printed circuit board treated with immersion gold. By setting the first printed circuit board substrate 61 to be a printed circuit board treated with immersion gold, it is more corrosion resistant and has a longer service life. The plating layer is flat, which facilitates the setting of the positive conductive unit 62, the negative conductive unit 65 and the signal line 63. It also facilitates the electrical connection between the wireless Jacquard comb and the positive conductive unit 62, the negative conductive unit 65 and the signal line 63. It has good solderability and facilitates the soldering between adjacent first printed circuit board substrates 61.

[0075] Reference Figure 3 and Figure 4 The positive conductive unit 62, the two signal lines 63, and the negative conductive unit 65 can all be copper wires or copper sheets, and the copper sheets can be long strips of copper.

[0076] Reference Figure 3 and Figure 4 One signal line 63 is used to transmit a positive level signal of +2 to +6V, and the other signal line 63 is used to transmit a negative level signal of -2V to 6V.

[0077] Reference Figure 3 , Figure 4 and Figure 1 The control circuit board 67 is electrically connected to the second power supply terminal 60, which is located in the insulating groove 214, which is made of resin material.

[0078] Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0079] Example 5, refer to Figure 1 , Figure 6 and Figure 7 The difference between this fifth embodiment and the first embodiment is that it includes at least one second power supply terminal 60 electrically connected to the Jacquard comb body 51, at least one comb bed 2 for mounting the Jacquard comb body 51, at least one clamping member 7 for clamping the comb base 1 and the comb bed 2 together, at least one first assembly part 23 provided on the rear of the comb base 1, at least one second assembly part 24 provided on the rear of the comb bed 2 and adapted to the first assembly part 23, and at least one first assembly groove 38 provided on the first assembly part 23 for mounting the first fastener. The comb bed 2 is detachably abutted against the bottom of the comb base 1.

[0080] Reference Figure 1 , Figure 6 and Figure 7 The Jacquard comb body 51 also includes a locking part 6 disposed on the bottom of the comb base 1, at least one first mounting groove 18 disposed on the comb base 1, at least one first ramp part 22 disposed on the comb base 1 at an inclination, and at least one pin unit 20 disposed in the first mounting groove 18.

[0081] Reference Figure 1 The ejector pin unit 20 includes at least one second printed circuit board substrate 211, at least one first conductive pin 222 disposed on the second printed circuit board substrate 211, at least one second conductive pin 242 disposed on the second printed circuit board substrate 211, and two third conductive pins 232 disposed on the second printed circuit board substrate 211.

[0082] Reference Figure 1 One end of the first conductive pin 222 is electrically connected to the positive conductive unit 62, and the other end of the first conductive pin 222 is electrically connected to the positive power terminal of the control circuit board 67. One end of the second conductive pin 242 is electrically connected to the negative conductive unit 65, and the other end of the second conductive pin 242 is electrically connected to the negative power terminal of the control circuit board 67. One end of the third conductive pin 232 is electrically connected to the signal line 63, and the other end of the third conductive pin 232 is electrically connected to the signal input terminal of the control circuit board 67.

[0083] Reference Figure 1By setting the first conductive pin 222, the second conductive pin 242 and the third conductive pin 232 to be electrically connected to the positive conductive unit 62, the negative conductive unit 65 and the signal line 63 respectively, the second power supply terminal 60 can supply power to the control circuit board 67 and transmit control signals of the RS485 communication bus, so that there is no cable between the jacquard comb and the comb bed 2, thereby reducing the length of the cable on the wireless jacquard device.

[0084] Reference Figure 1 , Figure 6 and Figure 7 One side of the clamping member 7 is wrapped around the comb base 1, and the other side of the clamping member 7 is wrapped around the comb bed 2, so that the clamping member 7, the comb base 1 and the comb bed 2 are connected as one unit by assembly.

[0085] Reference Figure 1 , Figure 6 and Figure 7 The rear part of the comb base 1 is detachably mounted on the clamping member 7, and the rear part of the comb bed 2 is detachably mounted on the clamping member 7.

[0086] Reference Figure 1 , Figure 6 and Figure 7 The comb base 1 is made of aluminum-magnesium alloy or carbon fiber, the comb bed 2 is made of resin, and the clamping part 7 is made of resin.

[0087] Reference Figure 1 , Figure 6 and Figure 7 By setting the clamping parts 7 to wrap around the Jacquard comb and the comb bed 2 on both sides respectively, the clamping parts 7, the comb base 1 and the comb bed 2 are assembled into one unit, thereby making the three parts assembled into a whole and improving the firmness of the assembly between them.

[0088] Reference Figure 1 , Figure 6 and Figure 7 By setting the clamping component 7, on the one hand, the clamping component 7 is used to clamp the comb base 1 and the comb bed 2 together, which facilitates the installation and disassembly of the comb base 1 and the comb bed 2. On the other hand, the comb base 1 and the comb bed 2 are detachably mounted on the clamping component 7, which has the effect of shortening the overall length of the Jacquard comb, making the overall length of the Jacquard comb shorter, and achieving the effect of one item serving two purposes.

[0089] Reference Figure 1 , Figure 6 and Figure 7The lower side of the first assembly part 23 and the upper side of the second assembly part 24 are detachably abutted together. One end of the clamping member 7 wraps around the upper side of the first assembly part 23, and the other end of the clamping member 7 wraps around the lower side of the second assembly part 24, so that the first assembly part 23 and the second assembly part 24 are connected as one unit.

[0090] Reference Figure 1 , Figure 6 and Figure 7 The clamping member 7 includes a clamping block 31 for fixing the comb base 1, at least one first locking fastener disposed on the rear end of the clamping block 31, a clamping groove 35 disposed on the front end of the clamping block 31, at least one second mounting groove 32 disposed on the clamping block 31 and adapted to the first mounting groove 38, at least one first clamping part 33 disposed inclined on the upper part of the clamping groove 35, and at least one second clamping part 34 disposed inclined on the lower part of the clamping groove 35.

[0091] Reference Figure 1 , Figure 6 and Figure 7 The first assembly part 23 and the second assembly part 24 can be separably embedded in the clamping groove 35. The first locking fastener is locked onto the first assembly part 23 by passing through the clamping groove 35 from the rear of the clamping block 31, so that the first assembly part 23 is locked in the clamping groove 35. The cross-section of the clamping groove 35 is a concave shape with a narrow bottom and a wide top.

[0092] Reference Figure 1 , Figure 6 and Figure 7 The lower side of the first assembly part 23 and the upper side of the second assembly part 24 are both stepped. The second assembly part 24 is stacked on the first assembly part 23, so that the first assembly part 23 pushes the second assembly part 24 to move toward the clamping member 7 during the locking process.

[0093] Reference Figure 1 , Figure 6 and Figure 7 By setting the second assembly part 24 to be stacked on the first assembly part 23, the first assembly part 23 pushes the second assembly part 24 toward the clamping groove 35 during the locking process, so that the rear end of the comb bed 2 is more firmly fixed in the clamping groove 35.

[0094] Reference Figure 1 , Figure 6 and Figure 7 The second mounting groove 32 extends from the rear of the clamping block 31 into the clamping groove 35. The first locking fastener passes through the second mounting groove 32 and the first mounting groove 38 respectively, so that the first mounting part 23 is locked in the clamping groove 35.

[0095] Reference Figure 7The first assembly part 23 is also provided with at least one inclined third clamping part 37 on its upper side. The third clamping part 37 is detachably embedded in the first clamping part 33, and the fourth clamping part 36 is detachably embedded in the second clamping part 34.

[0096] Reference Figure 7 The first clamping part 33 and the third clamping part 37 are both inclined at a 45-degree angle, and the second clamping part 34 and the fourth clamping part 36 are both inclined at a 45-degree angle.

[0097] Reference Figure 1 , Figure 6 and Figure 7 The mounting groove 16 extends from the left side of the fixing seat 15 to the right side of the fixing seat 15, and the positioning groove 17 extends toward the mounting groove 16 and is connected to the mounting groove 16.

[0098] Reference Figure 6 During use and installation, the mounting slot 16 can be installed on a horizontally positioned limiting rod. A positioning bolt is used so that one end of the bolt abuts against the limiting rod, thereby fixing the fixed seat 15. The fixed seat 15 is fixed by passing through the positioning slot 17, thus fixing the fixed seat 15 on the limiting rod.

[0099] Reference Figure 6 The clamping member 7 fixes the comb base 1 with the first locking fastener, and the front end of the comb bed 2 is only attached to the slot 12 of the comb base 1 to limit its position.

[0100] Reference Figure 1 and Figure 2 The locking part 6 includes at least one first protrusion 13 that is inclinedly disposed on the bottom of the comb base 1 and at least one locking groove 12.

[0101] Reference Figure 1 , Figure 6 and Figure 7 The first protrusion 13 extends toward the rear end of the comb base 1, so that the first protrusion 13 and the bottom of the comb base 1 surround to form a slot 12. The front end of the second protrusion 14 is detachably inserted into the slot 12, so that the first protrusion 13 wraps around the outside of the second protrusion 14.

[0102] Reference Figure 1 , Figure 6 and Figure 7 The locking part 6 extends toward the rear end of the comb base 1, and the front end of the comb bed 2 is detachably inserted into the locking part 6.

[0103] Reference Figure 1 , Figure 6 and Figure 7The front end of the second protruding block 14 is detachably inserted into the clamping position portion 6, so that the second slope portion 11 abuts against the first slope portion 22.

[0104] Reference Figure 1 , Figure 6 and Figure 7 , by providing the clamping position portion 6, the front end of the sley bar bed 2 is detachably inserted into the clamping position portion 6, which is convenient for a user to mount the sley bar base 1 on the sley bar bed 2, achieves a position limiting effect on the front end of the sley bar bed 2, and the sley bar base 1 and the sley bar bed 2 fit more closely, so that the installation of the sley bar bed 2 is firmer.

[0105] Reference Figure 1 , Figure 6 and Figure 7 , an included angle X is formed between the clamping position portion 6 and the bottom of the sley bar base 1, the angle of the included angle X satisfies 0°<X<90°, the front end of the sley bar bed 2 is detachably inserted into the clamping position portion 6, so that the rear end of the sley bar bed 2 abuts against the bottom of the sley bar base 1, and the sley bar base 1 and the clamping position portion 6 are connected integrally.

[0106] Reference Figure 1 , Figure 6 and Figure 7 , the sley bar base 1 comprises an elongated base portion 8, a plurality of needle grooves 41 arranged at intervals on the front end of the base portion 8 for mounting yarn guides, a plurality of groove portions 42 arranged at intervals on the base portion 8, at least one mounting post 45 provided on the base portion 8, and at least one second locking member adapted to the mounting post 45. Both the first locking member and the second locking member may be screws.

[0107] Reference Figure 1 , Figure 6 and Figure 7 , the base portion 8 comprises a first mounting portion 43 provided on one side of the groove portion 42 and a second mounting portion 44 provided on the other side of the groove portion 42. In this embodiment, the needle grooves 41 are specifically arranged at intervals on the front end portion of the first mounting portion 43. The mounting post 45 is located in the second mounting portion 44. The base portion 8 can be an aluminum base made of aluminum-magnesium alloy or made of carbon fiber material.

[0108] Reference Figure 1 , the piezoelectric ceramic element 3 comprises two stacked piezoelectric ceramic sheets 46 and two conductive sheets provided on one side of the piezoelectric ceramic sheets 46, the yarn guide assembly 5 comprises a holding sheet, at least one yarn guide provided on one side of the holding sheet, and a yarn guide hole provided on the front portion of the yarn guide for guiding yarn, the other end of the holding sheet is clamped on the other side of the two piezoelectric ceramic sheets 46, the holding sheet is clamped between the two piezoelectric ceramic sheets 46, the yarn guide is mounted in the needle groove 41, one end of the piezoelectric ceramic sheet 46 is mounted in the groove portion 42, and the groove portion 42 fixes one end of the piezoelectric ceramic sheet 46.

[0109] Two piezoelectric ceramic plates can be considered equivalent to two capacitors. For the wireless piezoelectric ceramic Jacquard comb to work properly, it must be charged and discharged simultaneously. When the wireless piezoelectric ceramic Jacquard comb is being charged, one side will deform, causing it to swing to that side.

[0110] Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0111] Example 6, refer to Figure 2 and Figure 8 The difference between this sixth embodiment and the first embodiment is that the driving circuit 87 includes at least one power supply VCC, at least one signal input terminal INPUT, at least one transistor Q1, at least one transistor Q2, at least one transistor Q3, at least one transistor Q4, at least one resistor R1, at least one resistor R2, at least one resistor R3, at least one resistor R4, at least one diode D2, and at least one diode D1. The power supply VCC is +200V.

[0112] Reference Figure 8 A first surface-mount dual transistor is formed by combining a transistor Q1 and a transistor Q2, and a second surface-mount dual transistor is formed by combining a transistor Q3 and a transistor Q4.

[0113] Reference Figure 8 The signal input terminal INPUT is connected to one end of resistor R1, and the other end of resistor R1 is connected to the base of transistor Q2. One end of resistor R2, the base of transistor Q1, and the cathode of diode D1 are connected in parallel to the collector of transistor Q2. The collector of transistor Q1 is connected in parallel to the other end of resistor R2, and the other end of resistor R2 is connected to the power supply VCC. The emitter of transistor Q1 is connected in parallel to the anode of diode D1, and the anode of diode D1 is connected to an output terminal OUT1.

[0114] Reference Figure 8 One end of resistor R3 and the anode of diode D1 are connected in parallel to the emitter of transistor Q1. The other end of resistor R3 is connected to the base of transistor Q4. One end of resistor R4, the base of transistor Q3, and the cathode of diode D2 are connected in parallel to the collector of transistor Q4. The other end of resistor R4 and the collector of transistor Q3 are connected in parallel to the collector of transistor Q1. The emitter of transistor Q3 is connected in parallel to the anode of diode D2. The anode of diode D2 is connected to an output terminal OUT2.

[0115] Reference Figure 8 The emitter of transistor Q4 is connected in parallel with the emitter of transistor Q2 and grounded.

[0116] Reference Figure 8The output terminal OUT1 is connected to one end of a piezoelectric ceramic plate, and the output terminal OUT2 is connected to one end of another piezoelectric ceramic plate.

[0117] Reference Figure 8 Specifically, both transistors Q1 and Q2 can be NPN transistors.

[0118] Reference Figure 8 Specifically, both transistors Q3 and Q4 can be NPN transistors.

[0119] The first surface-mount dual transistor is model BC847BS 1FT. It is packaged in an SOT-363 package and has parameters of 0.1A / 100mA 45V. This BC847BS 1FT surface-mount dual transistor consists of two NPN transistors.

[0120] The second surface-mount dual transistor is model BC847BS 1FT. It is packaged in an SOT-363 package and has parameters of 0.1A / 100mA 45V. This BC847BS 1FT surface-mount dual transistor consists of two NPN transistors.

[0121] Reference Figure 8 By setting a second surface-mount dual transistor formed by combining a transistor Q3 and a transistor Q4, compared with two separate transistors Q3 and Q4, the second surface-mount dual transistor has better manufacturing consistency, lower cost, and better reliability. On the other hand, the second surface-mount dual transistor occupies a smaller area, thereby reducing the overall area of ​​the driver circuit 87 and helping to improve the integration level of the driver circuit 87, achieving two benefits at once.

[0122] Reference Figure 8 By setting up a circuit layout with a first surface-mount dual transistor and a second surface-mount dual transistor in conjunction with two diodes, it is possible to ensure that the power supply will not experience short circuits. The entire circuit has low power consumption, low heat generation, and simple circuitry, which can significantly improve the reliability of the drive circuit 87, extend the service life of the driver and Jacquard, and save on repair costs.

[0123] Two piezoelectric ceramic plates can be considered equivalent to two capacitors. For the wireless piezoelectric ceramic Jacquard comb to work properly, it must be charged and discharged simultaneously. When the wireless piezoelectric ceramic Jacquard comb is being charged, one side will deform, causing it to swing to that side.

[0124] Its working principle is explained below: 1. When INPUT1 is high, transistor Q2 is turned on, the base of transistor Q1 is low, and transistor Q1 is turned off. The output discharges through diode D1 and transistor Q2 to one end of the Jacquard capacitor. It is particularly important to note that at the moment the discharge begins, diode D1 turns on, putting transistor Q1 in a reverse-biased state, causing transistor Q1 to quickly turn off and be completely cut off, resulting in almost no power consumption.

[0125] 2: When INPUT1 is high, INPUT2 is low, Q4 is cut off, and Q4 is essentially open-circuited. At this time, the current from R4, amplified by Q3, charges the capacitor on the other side of the Jacquard capacitor. Since Q4 is in the off state, there is almost no power consumption.

[0126] 3: When the voltage levels are reversed, the working process is exactly the same.

[0127] Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0128] Example 7, referring to Figure 2 and Figure 9 The difference between this embodiment seven and embodiment six is ​​that the driving circuit 87 includes at least one power supply VCC, at least one signal input terminal INPUT, at least one transistor Q1, at least one transistor Q2, at least one resistor R1, at least one resistor R2, and at least one diode D1. A first surface-mount dual transistor is formed by combining one transistor Q1 and one transistor Q2. The power supply VCC is +200V.

[0129] Reference Figure 9 The signal input terminal INPUT is connected to one end of resistor R1. The other end of resistor R1 is connected to the base of transistor Q2. One end of resistor R2, the base of transistor Q1, and the cathode of diode D1 are connected in parallel to the collector of transistor Q2. The collector of transistor Q1 is connected in parallel to the other end of resistor R2. The other end of resistor R2 is connected to the power supply VCC. The emitter of transistor Q1 is connected in parallel to the anode of diode D1. The anode of diode D1 is connected to an output terminal OUT1. The output terminal OUT1 is connected to one end of a piezoelectric ceramic plate, thereby driving the piezoelectric ceramic plate to oscillate.

[0130] Reference Figure 9 Specifically, both transistors Q1 and Q2 can be NPN transistors.

[0131] The drive circuit 87 can be mounted on a printed circuit board.

[0132] The first surface-mount dual transistor is model BC847BS 1FT, packaged in SOT-363, with parameters of 0.1A / 100mA 45V. This BC847BS 1FT surface-mount dual transistor consists of two NPN transistors.

[0133] Other structures are similar to those in Embodiment Six, and will not be described in detail here.

[0134] 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 high-speed warp knitting machine with stable operation, comprising at least one guide bar bed, a plurality of Jacquard guide bar bodies disposed on the guide bar bed, at least one second mounting groove disposed on the guide bar bed, at least one insulating groove disposed in the second mounting groove, and at least one second power supply terminal disposed in the insulating groove, characterized in that: The jacquard comb body includes at least one drive circuit board, at least one control circuit board, at least two first power terminals disposed on the drive circuit board, at least two second power terminals disposed on the control circuit board, at least one first power line, at least one second power line, at least one control circuit board, at least two second power terminals disposed on the control circuit board, and at least one electronic DIP switch module disposed on the drive circuit board and electrically connected to the drive circuit. The second power supply terminal includes at least one first printed circuit board substrate, at least one positive conductive unit, at least one negative conductive unit, and at least two signal lines. The positive and negative conductive units are used to supply power to the Jacquard comb body, and the signal lines are used to transmit control signals sent via an RS485 communication bus to the Jacquard comb body. The first power line supplies power to the drive circuit board through the first power terminal, and the second power line supplies power to the control circuit board through the second power terminal. The voltage of the first power line is greater than the voltage of the second power line. Each of the plurality of first power terminals is electrically connected in parallel to the first power line, such that the first power line is electrically connected in parallel to the plurality of Jacquard comb bodies through the plurality of first power terminals. Each of the plurality of control circuit boards is electrically connected in parallel with the second power line, such that the second power line is electrically connected in parallel with the plurality of Jacquard comb bodies through a plurality of second power terminals. The electronic DIP switch module is used to set the communication address of the driver circuit board. The electronic DIP switch module includes at least one debugger for setting the communication address, at least one DIP switch key panel electrically connected to the debugger, at least one display electrically connected to the debugger, at least one signal output port electrically connected to the debugger, and at least one plug-in port provided on the driver circuit board. The signal output port is pluggable into the plug-in port. The DIP switch key panel is used to input address selection commands, and the display is used to display the address selection commands input from the DIP switch key panel to the debugger.

2. The high-speed warp knitting machine with stable operation as described in claim 1, characterized in that: The first power connection terminal includes at least one fixing part disposed on one side of the drive circuit board and at least one female head disposed on the other side of the drive circuit board. The first power line includes a first power line body that is electrically connected to the drive circuit board at one end through the fixing part and a male head disposed at the other end of the first power line body. Two adjacent drive circuit boards are pluggably connected to the female head through the male head, so that the two adjacent drive circuit boards are respectively electrically connected in parallel to the first power line body.

3. The high-speed warp knitting machine with stable operation as described in claim 1, characterized in that: The positive conductive unit, the two signal lines, and the negative conductive unit are all arranged at relative intervals, and the two signal lines are both located between the positive conductive unit and the negative conductive unit.

4. The high-speed warp knitting machine with stable operation as described in claim 1, characterized in that: Two adjacent first printed circuit board substrates are soldered together by a plurality of solder rods. The solder rods are located on the back of the first printed circuit board substrates. The two adjacent positive conductive units are connected by soldering with the solder rods, the two adjacent negative conductive units are connected by soldering with the solder rods, and the two adjacent signal lines are connected by soldering with the solder rods.

5. A stable high-speed warp knitting machine as described in claim 1, characterized in that: The device includes at least one clamping member for clamping the comb base and the comb bed together, at least one first assembly part disposed on the rear of the comb base, and at least one second assembly part disposed on the rear of the comb bed and adapted to the first assembly part. One side of the clamping member wraps around the comb base, and the other side of the clamping member wraps around the comb bed, so that the clamping member, the comb base, and the comb bed are assembled into one unit. The rear end of the comb base is detachably mounted on the clamping member, and the rear end of the comb bed is detachably mounted on the clamping member. The lower side of the first assembly part and the upper side of the second assembly part are detachably abutted against each other. One end of the clamping member wraps around the upper side of the first assembly part, and the other end of the clamping member wraps around the lower side of the second assembly part, so that the first assembly part and the second assembly part are connected into one unit.

6. The high-speed warp knitting machine with stable operation as described in claim 1, characterized in that: The driving circuit on the driving circuit board includes at least one power supply VCC, at least one signal input terminal INPUT, at least one transistor Q1 and at least one transistor Q2. A transistor Q1 and a diode Q2 are combined to form a first surface-mount dual transistor. The signal input terminal INPUT is connected to the input terminal of the first surface-mount dual transistor. The output terminal of the first surface-mount dual transistor is electrically connected to a piezoelectric ceramic. The power supply VCC supplies power to transistors Q1 and Q2 respectively.

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