Piezoelectric ceramic wireless jacquard device and warp knitting machine

Abstract

A piezoelectric ceramic wireless jacquard knitting device and warp knitting machine include at least one drive circuit board and at least one control circuit board for driving the drive circuit board. In this invention, by setting the drive circuit board and control circuit board relatively spaced apart, on the one hand, the drive circuit board and control circuit board are separated, so that the heat generated during the operation of the drive circuit board and the control circuit board do not affect each other, extending their service life. On the other hand, separating the drive circuit board and control circuit board allows for independent power supply via independent first and second power lines, improving the stability of the drive circuit board and control circuit board, extending their service life, and eliminating the boost circuit structure, thereby reducing the area occupied by the circuit, achieving two benefits at once.

Description

Technical Field

[0001] This invention relates to the field of warp knitting machines, and in particular to a piezoelectric ceramic wireless jacquard device and a warp knitting machine. 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 prior Chinese utility model patent application (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 discovered that since multiple Jacquard comb bodies need to be set on the warp knitting machine, when one Jacquard comb body malfunctions, the other adjacent Jacquard comb bodies will also be affected. Summary of the Invention

[0005] This invention provides a piezoelectric ceramic wireless jacquard device and a warp knitting machine. Its main purpose is to overcome the shortcomings of existing warp knitting machines, which require multiple jacquard comb bodies. When one jacquard comb body fails, other adjacent jacquard comb bodies will also be affected.

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

[0007] A wireless jacquard device using piezoelectric ceramics includes at least one drive circuit board and at least one control circuit board for driving the drive circuit board. The drive circuit board and the control circuit board are positioned relatively apart, and power is supplied to the drive circuit board and the control circuit board separately.

[0008] Furthermore, it also includes at least two first power supply terminals disposed on the drive circuit board, at least one second power supply 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 supply terminal, and the second power line supplies power to the control circuit board through the second power supply terminal. The voltage of the first power line is greater than the voltage of the second power line.

[0009] Furthermore, it also includes a first power supply 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 supply terminals are 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 the plurality of the first power supply terminals.

[0010] Furthermore, it also includes at least one second power line, and the Jacquard comb body also includes 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, so 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.

[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 fixing part, the female head of the first power cord body, and the male head are all located on the back of the drive circuit board, so that the female head can be plugged into the male head, and the male head and the female head are connected to form a conductive connector.

[0013] 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.

[0014] 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 enable terminal of the piezoelectric ceramic. The power supply VCC supplies power to transistors Q1 and Q2 respectively.

[0015] Furthermore, it includes at least one comb base for mounting the control circuit and the drive circuit, at least one comb bed detachably abutting the bottom of the comb base, at least one clamping member for clamping the comb base and the comb bed together, at least one first mounting part disposed on the rear of the comb base, and at least one second mounting part disposed on the rear of the comb bed and adapted to the first mounting part. One side of the clamping member wraps around the comb base, and the other side of the clamping member wraps around the comb. On the bed, 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 as one unit.

[0016] A warp knitting machine includes at least one wireless jacquard device, wherein the wireless jacquard device is the wireless jacquard device described above.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] This invention features a simple structure and strong practicality. By setting the drive circuit board and the control circuit board relatively spaced apart, it separates the two circuit boards, ensuring that the heat generated during the operation of the drive circuit board and the control circuit board do not affect each other, thus extending their service life. Furthermore, by independently setting up first and second power lines for independent power supply, it improves the stability of both the drive and control circuit boards, further extending their service life. The elimination of the boost circuit structure reduces the area occupied by the circuit, achieving two benefits at once.

[0019] In this invention, by setting a plurality of first power supply terminals to be connected in parallel with the first power line, on the one hand, when the drive circuit on one drive circuit board fails, it does 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.

[0020] In this invention, by setting a plurality of second power supply terminals to be 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.

[0021] 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.

[0022] In this invention, by setting the voltage of the first power line input to the first power terminal to be 170V to 200V and the voltage of the second power line input to the second power terminal to be 5V, the high voltage and low voltage are separated, so that the drive circuit board and the control circuit board do not affect each other, thereby improving the stability of the drive circuit board and the control circuit board.

[0023] 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.

[0024] 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

[0025] Figure 1 This is a schematic diagram of the structure of the first power supply terminal.

[0026] Figure 2 This is a module diagram of the electronic DIP switch module.

[0027] Figure 3 This is a schematic diagram of the second power supply connection terminal.

[0028] Figure 4 This is a schematic diagram of the back of the second power supply terminal.

[0029] Figure 5 An exploded view of the Jacquard comb itself.

[0030] Figure 6 This is a schematic diagram of the comb base.

[0031] Figure 7 for Figure 6 A schematic diagram of the structure of part A.

[0032] Figure 8 This is the circuit diagram for Example 5.

[0033] Figure 9 This is the circuit diagram for Example 6. Detailed Implementation

[0034] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0035] Example 1, refer to Figure 1 and Figure 5 A piezoelectric ceramic wireless jacquard device and a warp knitting machine are disclosed. The warp knitting machine includes at least one wireless jacquard device, which includes at least one drive circuit board 4 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. The drive circuit board 4 and the control circuit board 67 are arranged at intervals relative to each other, and power is supplied to the drive circuit board 4 and the control circuit board 67 separately.

[0036] Reference Figure 5 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.

[0037] Example 2, refer to Figure 2 and Figure 5 The difference between this second embodiment and the first embodiment 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.

[0038] 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.

[0039] 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 detachably 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.

[0040] Reference Figure 2By setting a plug-in port 86 and an address DIP switch unit that can be plugged into the plug-in port 86, the electronic DIP switch module 81 occupies only the space of one plug-in port 86 on the drive circuit board 4. Compared with mechanical manual DIP switches, it occupies less space. Moreover, when the address DIP switch unit is damaged, it can be directly replaced by plugging and unplugging, and the drive circuit board 4 can continue to be used, reducing the maintenance cost of the drive circuit board 4 in the later stage.

[0041] Reference Figure 2 The address dialing unit includes at least one debugger 85 for setting a communication address, at least one dial key panel 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 dial key panel 84 is used to input address selection commands, and the display 83 is used to display the address selection commands input from the dial key panel 84 to the debugger 85.

[0042] Reference Figure 2 By 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.

[0043] Reference Figure 2 The electronic dial switch module 81 is an electronic address selector.

[0044] Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0045] Example 3, referring to Figure 1 , Figure 3 , Figure 4 and Figure 5The difference between this third 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, at least two first power terminals 411 disposed 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 disposed 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 piezoelectric ceramic elements 3 to deform.

[0046] 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.

[0047] 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.

[0048] Reference Figure 3 and Figure 5 Each 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.

[0049] Reference Figure 3 and Figure 5 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.

[0050] 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.

[0051] Reference Figure 1 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.

[0052] Reference Figure 1 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.

[0053] Reference Figure 1 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.

[0054] Reference Figure 1 The 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.

[0055] Reference Figure 1 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.

[0056] Reference Figure 1 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.

[0057] Reference Figure 1 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.

[0058] Reference Figure 3 and Figure 4 The second power supply terminal 60 includes at least one first printed circuit board substrate 61, at least one positive conductive unit 62 disposed on the first printed circuit board substrate 61, at least one negative conductive unit 65 disposed on the first printed circuit board substrate 61, at least two signal lines 63 disposed on the first printed circuit board substrate 61, and a plurality of shock-absorbing cotton spaced apart on the back side of the first printed circuit board substrate 61.

[0059] Reference Figure 3 and Figure 4 Signal line 63 is used to transmit control signals from an external RS485 communication bus. 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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 made of copper wire or copper sheet.

[0070] 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.

[0071] Reference Figure 3 , Figure 4 and Figure 5 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.

[0072] Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0073] Example 4, refer to Figure 3 , Figure 5 , Figure 6 and Figure 7 The difference between this embodiment four and embodiment three 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.

[0074] Reference Figure 5 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 incline, and at least one pin unit 20 disposed on the bottom of the comb base 1.

[0075] Reference Figure 5 , Figure 6 and Figure 7 The 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, a second mounting groove 19 located on the upper part of the fixed base 15 and below the first mounting groove 18, and at least one insulating groove 214 located in the second mounting groove 19. The second mounting groove 19 is located at an opening on the comb bed 2 facing the comb base 1.

[0076] Reference Figure 5The 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.

[0077] Reference Figure 5 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.

[0078] Reference Figure 5 By 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.

[0079] Reference Figure 5 , 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.

[0080] Reference Figure 5 , 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.

[0081] Reference Figure 5 , 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.

[0082] Reference Figure 5 , Figure 6 and Figure 7By 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.

[0083] Reference Figure 5 , 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.

[0084] Reference Figure 5 , 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 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.

[0085] Reference Figure 5 , 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.

[0086] Reference Figure 5 , 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.

[0087] Reference Figure 5 , 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.

[0088] Reference Figure 5 , 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.

[0089] Reference Figure 5 , 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.

[0090] Reference Figure 7 The 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.

[0091] 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.

[0092] Reference Figure 5 , 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.

[0093] 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.

[0094] 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.

[0095] Reference Figure 2 and Figure 5 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.

[0096] Reference Figure 5 , Figure 6 and Figure 7 , the first bump 13 extends towards the rear end direction of the comb base 1, so that a card slot 12 is formed around between the first bump 13 and the bottom of the comb base 1, and the front end of the second bump 14 is detachably inserted into the card slot 12, so that the first bump 13 is wrapped outside the second bump 14.

[0097] Refer to Figure 5 , Figure 6 and Figure 7 , the positioning part 6 extends towards the rear end direction of the comb base 1, and the front end of the comb bed 2 is detachably inserted into the positioning part 6.

[0098] Refer to Figure 5 , Figure 6 and Figure 7 , the front end of the second bump 14 is detachably inserted into the positioning part 6, so that the second ramp part 11 abuts against the first ramp part 22.

[0099] Refer to Figure 5 , Figure 6 and Figure 7 , by setting the positioning part 6, the front end of the comb bed 2 is detachably inserted into the positioning part 6, which is convenient for the user to install the comb base 1 on the comb bed 2, plays a role in limiting the front end of the comb bed 2, and makes the comb base 1 and the comb bed 2 fit more closely, so that the installation of the comb bed 2 is more firm.

[0100] Refer to Figure 5 , Figure 6 and Figure 7 , an included angle X is formed between the positioning part 6 and the bottom of the comb base 1, the angle of the included angle X is 0 degrees < X < 90 degrees, the front end of the comb bed 2 is detachably inserted into the positioning part 6, so that the rear end of the comb bed 2 abuts against the bottom of the comb base 1, and the comb base 1 and the positioning part 6 are integrated.

[0101] Refer to Figure 5 , Figure 6 and Figure 7 , the comb base 1 includes a long strip-shaped base part 8, a plurality of needle grooves 41 arranged at intervals on the front end of the base part 8 for installing yarn guiding needles, a plurality of groove parts 42 arranged at intervals on the base part 8, at least one mounting column 45 arranged on the base part 8 and at least one second locking member adapted to the mounting column 45. The first locking member and the second locking member can both be screws.

[0102] Refer to Figure 5 , Figure 6 and Figure 7The base portion 8 includes a first mounting portion 43 located on one side of the recessed portion 42 and a second mounting portion 44 located on the other side of the recessed portion 42. In this embodiment, the pin grooves 41 are specifically spaced apart on the front end of the first mounting portion 43. The mounting post 45 is located within the second mounting portion 44. The base portion 8 can be an aluminum base made of aluminum-magnesium alloy or a carbon fiber material.

[0103] Reference Figure 5 The piezoelectric ceramic element 3 includes two stacked piezoelectric ceramic sheets 46 and two conductive sheets disposed on one side of the piezoelectric ceramic sheets 46. The yarn guide needle assembly 5 includes a retaining sheet, at least one yarn guide needle disposed on one side of the retaining sheet, and a yarn guide hole disposed on the front part of the yarn guide needle for guiding yarn. The other end of the retaining sheet is clamped on the other side of the two piezoelectric ceramic sheets 46. The retaining sheet is clamped between the two piezoelectric ceramic sheets 46. The yarn guide needle is installed in the needle groove 41. One end of the piezoelectric ceramic sheet 46 is installed in the groove portion 42. The groove portion 42 fixes one end of the piezoelectric ceramic sheet 46.

[0104] 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.

[0105] Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0106] Example 5, refer to Figure 2 and Figure 8 The difference between this fifth 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.

[0107] 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.

[0108] Reference Figure 8The 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.

[0109] 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.

[0110] Reference Figure 8 The emitter of transistor Q4 is connected in parallel with the emitter of transistor Q2 and grounded.

[0111] Reference Figure 8 The 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.

[0112] Reference Figure 8 Specifically, both transistors Q1 and Q2 can be NPN transistors.

[0113] Reference Figure 8 Specifically, both transistors Q3 and Q4 can be NPN transistors.

[0114] 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.

[0115] 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.

[0116] Reference Figure 8By 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.

[0117] 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 transistors, 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.

[0118] 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.

[0119] Its working principle is explained below:

[0120] 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 onto 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.

[0121] 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.

[0122] 3: When the voltage levels are reversed, the working process is exactly the same.

[0123] Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0124] Example 6, refer to Figure 2 and Figure 9The difference between this embodiment six and embodiment five 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.

[0125] 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.

[0126] Reference Figure 9 Specifically, both transistors Q1 and Q2 can be NPN transistors.

[0127] The drive circuit 87 can be mounted on a printed circuit board.

[0128] 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.

[0129] Other structures are similar to those in Embodiment 1, and will not be described in detail here.

[0130] 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 wireless jacquard device using piezoelectric ceramics, characterized in that: It includes at least one driver circuit board, at least one control circuit board for driving the driver circuit board, at least two first power terminals disposed on the driver 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, and at least one electronic DIP switch module disposed on the driver circuit board and electrically connected to the drive circuit. By using a method where the drive circuit board and the control circuit board are arranged relatively apart, power can be supplied to the drive circuit board and the control circuit board separately. 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 supply 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 supply 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 wireless jacquard device using piezoelectric ceramics 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 wireless jacquard device using piezoelectric ceramics as described in claim 2, characterized in that: The fixing part, the female head of the first power cord body, and the male head are all located on the back of the drive circuit board, so that the female head can be plugged into the male head, and the male head and the female head are connected to form a conductive connector.

4. The wireless jacquard device using piezoelectric ceramics 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. 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 enable terminal of the piezoelectric ceramic. The power supply VCC supplies power to transistors Q1 and Q2 respectively.

5. The wireless jacquard device using piezoelectric ceramics as described in claim 1, characterized in that: The device includes at least one comb base for mounting the control circuit and the drive circuit, at least one comb bed detachably abutting the bottom of the comb base, at least one clamping member for clamping the comb base and the comb bed together, at least one first mounting part disposed on the rear of the comb base, and at least one second mounting part disposed on the rear of the comb bed and adapted to the first mounting 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. 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. A warp knitting machine, characterized in that: It includes at least one wireless jacquard device, wherein the wireless jacquard device is the wireless jacquard device according to any one of claims 1 to 5.

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