CN218124570U - A drive circuit for merchant card piezoceramics piece - Google Patents

Abstract

The utility model provides a drive circuit for merchant card piezoceramics piece, VCC1 including the power, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6 triode Q1, triode Q2, triode Q3, triode Q4, triode Q5 and triode Q6, constitute multivibrator through using the triode to connect in parallel and produce the square wave, increase piezoceramics piece swing dynamics and improve the swing performance of piezoceramics piece on the one hand, satisfy the customer and be few to merchant card sley performance's demand on the other hand electrical components kind, make drive circuit easy processing production, improve drive circuit's stability, the life of extension merchant card sley, obtain the electrical components who is used for changing easily and change the maintenance when the few later maintenance of electrical components kind, effectively prolong merchant card sley's life, customer use and manufacturing cost have been reduced.

Description

A drive circuit for merchant card piezoceramics piece

Technical Field

The utility model belongs to the technical field of the tricot machine and specifically relates to indicate a drive circuit that is used for merchant's card piezoceramics piece.

Background

Chinese Utility model patent (application number: 201820831182.0, publication number: CN 208562737U) discloses a driving circuit for piezoelectric jacquard. The driving circuit comprises a signal, a power supply VPP, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a triode Q1, a triode Q2 and a diode D1, wherein the signal is connected to one end of the resistor R2; the other end of the resistor R2 is respectively connected with one end of the resistor R3 and the base electrode of the triode Q1; the other end of the resistor R3 is connected to the emitting electrode of the triode Q1 and is grounded; the power supply VPP is respectively connected with one end of the resistor R1 and the collector electrode of the triode Q2; the other end of the resistor R1 is respectively connected with a collector of the triode Q1, a base of the triode Q2 and a cathode of the diode D1; the emitter of the triode Q2 is connected with the anode of the diode D1 and one end of the resistor R4; the other end of the resistor R4 is connected with the piezoelectric jacquard.

Chinese utility model patent (application number: 201920945305.8, publication number: CN 210262216U) discloses a warp knitting machine piezoelectricity merchant card control structure, including human-computer interface, master controller, a plurality of repeaters, merchant card drive power supply, multi-disc piezoelectricity merchant card, wherein piezoelectricity merchant card includes base, drive circuit board, plastics back tooth, flexible conducting resin, switching circuit board, 16 bimorphs, guard shield set screw, asymmetric structure guard shield, locking screw, locking iron sheet, drive circuit board includes drive circuit, output row mother, input interface. Each repeater controls 32 or 64 piezoelectric jammers; the output bus on the driving circuit board has 18 output terminals, and the input interface on the driving circuit board has 6 input terminals.

When the voltage applied to the piezoelectric ceramic piece is insufficient, the deformation degree of the piezoelectric ceramic piece cannot meet the requirement of a spinning jacquard process, and the spinning jacquard effect is influenced. Therefore, the driving circuit for the jacquard piezoelectric ceramic piece is provided, and the performance of the piezoelectric ceramic piece is improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a drive circuit for merchant's card piezoceramics piece, its main aim at overcomes the defect that its circuit structure of current drive circuit for driving merchant's card sley is complicated.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model provides a drive circuit for jia ka voltage potsherd, this drive circuit includes power VCC1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6 triode Q1, triode Q2, triode Q3, triode Q4, triode Q5 and triode Q6, resistance R1's one end with triode Q1's collecting electrode connect in parallel in power VCC 1's positive pole, resistance R1's the other end triode Q5's base and triode Q1's base connect in parallel in triode Q2's collecting electrode, resistance R2's one end connect in triode Q2's base, the other end is connected in signal INPUT end INPUT1, resistance R4's one end with triode Q3's collecting electrode connect in parallel in power VCC 1's positive pole, resistance R4's the other end triode Q5's base and triode Q3's base connect in parallel in triode Q4's collecting electrode, resistance R5's one end connect in triode Q4's base, the other end connect in VCC 2, triode Q5 and triode Q6's negative pole connect in parallel in triode Q3 and triode Q6 one end in parallel in triode Q3's emitting electrode.

Further, the triode Q1, the triode Q2, the triode Q3 and the triode Q4 are all NPN transistors, and the triode Q5 and the triode Q6 are PNP triodes.

Further, still include electric capacity C3, diode D1, inductance coils L1, triode Q7 and resistance R7, resistance R1's one end and diode D1's negative pole connect in parallel in electric capacity C3's one end, electric capacity C3's other end ground connection inductance coils L1's one end connect in parallel in power VCC 1's positive pole, inductance coils L1's the other end and triode Q7's collecting electrode connect in parallel in diode D1's positive pole, triode Q7's projecting pole connect in parallel in triode Q2's projecting pole, resistance R7's one end connect in triode Q7's base, resistance R7's the other end is connected in an INPUT PWM _ INPUT, power VCC 1's negative pole ground connection.

Further, this drive circuit is used for driving an at least merchant card sley bar, merchant card sley bar includes a sley bar base, many fixes guide needle, at least two on the sley bar base are used for driving every the piezoceramics piece and the at least one of guide needle are used for the drive circuit of piezoceramics piece, the piezoceramics piece includes piezoceramics piece C1 and another piezoceramics piece C2, piezoceramics piece C1's the other end reaches piezoceramics piece C2's the other end connect in parallel in power VCC 1's negative pole, piezoceramics piece C1's the other end reaches piezoceramics piece C2's the other end connect in parallel in power VCC 1's positive pole.

Compared with the prior art, the utility model discloses the beneficial effect who produces lies in:

1. the utility model has the advantages of simple structure, therefore, the clothes hanger is strong in practicability, constitute multivibrator through using the triode to connect in parallel and produce the square wave, increase piezoceramics piece swing dynamics on the one hand and improve the swing performance of piezoceramics piece, satisfy the demand of customer to the merchant card sley performance on the other hand electrical components kind few, make the easy processing production of drive circuit, improve drive circuit's stability, the life of extension merchant card sley, obtain the electrical components who is used for changing and change the maintenance easily when the few later maintenance of electrical components kind, effectively prolong the life of merchant card sley, customer's use and manufacturing cost have been reduced.

3. The utility model discloses in, constitute a boost circuit through setting up inductance coils L1, electric capacity C3 and diode D1, boost circuit makes C1 and C2 be in positive negative pressure drive state, promotes the swing performance of piezoceramics piece, satisfies the demand of customer to merchant card sley performance.

4. The utility model discloses in, be connected with the merchant card sley bar controller output's control signal looks electricity through setting up triode Q7, make drive circuit need not be connected with merchant card sley bar controller looks electricity through the connector that has switching function such as using bottom plate or relay board on the one hand, drive circuit board is direct to be connected the stability that improves master control circuit board control signal transmission with master control circuit board looks electricity, and then improve the stability of merchant card sley operation, on the other hand saves the cost reduction tricot machine's of bottom plate or relay board complete machine cost, play the effect of killing two birds with one stone.

Drawings

Fig. 1 is a circuit diagram of a first embodiment.

Fig. 2 is a circuit diagram of the second embodiment.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

In the first embodiment, referring to fig. 1, a driving circuit for a jacquard piezoelectric ceramic piece, the jacquard guide bar includes a guide bar base, a plurality of guide pins fixed on the guide bar base, at least two piezoelectric ceramic pieces for driving each guide pin, and at least one driving circuit for driving the piezoelectric ceramic pieces, the piezoelectric ceramic pieces include piezoelectric ceramic piece C1 and another piezoelectric ceramic piece C2, one end of the piezoelectric ceramic piece C1 and one end of the piezoelectric ceramic piece C2 are connected in parallel to the positive electrode of a power supply VCC1, and the other end of the piezoelectric ceramic piece C1 and the other end of the piezoelectric ceramic piece C2 are connected in parallel to the negative electrode of the power supply VCC 1.

Referring to fig. 1, the driving circuit includes a power source VCC1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a transistor Q1, a transistor Q2, a transistor Q3, a transistor Q4, a transistor Q5, and a transistor Q6.

Referring to fig. 1, one end of a resistor R1 and a collector of a transistor Q1 are connected in parallel to a positive electrode of a power supply VCC1, the other end of the resistor R1, a base of a transistor Q5 and a base of the transistor Q1 are connected in parallel to a collector of a transistor Q2, one end of the resistor R2 is connected to the base of the transistor Q2, and the other end is connected to a signal INPUT terminal INPUT1.

Referring to fig. 1, one end of the resistor R4 and the collector of the transistor Q3 are connected in parallel to the positive terminal of the power supply VCC1, the other end of the resistor R4, the base of the transistor Q5 and the base of the transistor Q3 are connected in parallel to the collector of the transistor Q4, one end of the resistor R5 is connected to the base of the transistor Q4, and the other end is connected to a signal INPUT terminal INPUT2.

Referring to fig. 1, the emitting electrodes of the transistor Q5 and the transistor Q1 are connected in parallel to one end of the resistor R3, the other end of the resistor R3 is connected to one end of the piezoelectric ceramic piece C1, the emitting electrode of the transistor Q6 and the emitting electrode of the transistor Q3 are connected in parallel to one end of the resistor R6, the other end of the resistor R6 is connected to one end of the piezoelectric ceramic piece C2, the other end of the piezoelectric ceramic piece C1 is electrically connected to the other end of the piezoelectric ceramic piece C2, the emitting electrodes of the transistor Q2 and the transistor Q4 are connected in parallel to the negative electrode of the power VCC1, the emitting electrodes of the transistor Q2 and the transistor Q4 and the negative electrode of the power VCC1 are grounded in parallel, the voltage of the power VCC1 may be 180V to 220V, the driving circuit is disposed on a printed circuit board, the printed circuit board is provided with a fourth communication interface adapted to the third data communication interface, the fourth communication interface is an RS485 data communication interface, and the printed circuit board is provided with a 485 communication bus for electrically connecting electrical components.

Referring to fig. 1, in the present embodiment, the transistors Q1, Q2, Q3, and Q4 are NPN transistors, and the transistors Q5 and Q6 are PNP transistors.

Constitute multivibrator through using the triode to connect in parallel and produce the square wave, increase piezoceramics piece swing dynamics on the one hand and improve the swing performance of piezoceramics piece, satisfy the customer and be few to the jacquard comb demand of performance on the other hand electrical components kind, make the easy processing production of drive circuit, improve drive circuit's stability, the life of extension jacquard comb, obtain the electrical components who is used for changing easily and change the maintenance easily when the few later maintenance of electrical components kind, effectively prolong the life of jacquard comb, customer's use and manufacturing cost have been reduced.

The warp knitting machine in this embodiment includes at least one jacquard device, at least one industrial personal computer, at least one jacquard guide bar controller, at least one proximity switch, and at least one jacquard guide bar driver for driving jacquard guide bars to guide yarns, where the jacquard device includes at least one guide bar bed and at least one jacquard guide bar mounted on the guide bar bed, and a 32-bit ARM embedded processor is disposed in the jacquard guide bar controller.

The industrial personal computer is a common industrial control computer internally provided with corresponding jacquard guide bar driving software.

The industrial personal computer is provided with a first data communication interface which can carry out data communication with the jacquard guide bar controller and a second data communication interface which is used for reading jacquard process files.

The proximity switch is used for determining position information of a main shaft of the warp knitting machine and sending the position information to the jacquard guide bar controller.

The jacquard guide bar controller is provided with a third data communication interface used for receiving jacquard process data downloaded by the industrial personal computer, the third data communication interface is electrically connected with the first data communication interface, the second data communication interface is a USB data communication interface, and the first data communication interface and the third data communication interface are both RS485 data communication interfaces.

The jacquard guide bar controller converts the process data into control data and transmits the control data to the jacquard guide bar driver, and the jacquard guide bar driver drives the jacquard guide bar to carry out jacquard yarn guiding action, so that a pattern is formed on the cloth surface.

The jacquard guide bar driver comprises at least one driving circuit for driving the jacquard guide bar.

The utility model discloses in, electrical components kind is few, make the easy processing production of drive circuit, improves drive circuit's stability, prolongs the life of merchant card sley, obtains easily when the few later maintenance of electrical components kind.

In a second embodiment, referring to fig. 2, the second embodiment is different from the first embodiment in that: the driving circuit further comprises a capacitor C3, a diode D1, an inductance coil L1, a triode Q7 and a resistor R7, one end of the resistor R1 and the cathode of the diode D1 are connected in parallel with one end of the capacitor C3, the other end of the capacitor C3 is grounded, one end of the inductance coil L1 is connected in parallel with the anode of a power supply VCC1, the other end of the inductance coil L1 and the collector of the triode Q7 are connected in parallel with the anode of the diode D1, the emitter of the triode Q7 is connected in parallel with the emitter of the triode Q2, one end of the resistor R7 is connected with the base of the triode Q7, the other end of the resistor R7 is connected with an INPUT end PWM _ INPUT, the cathode of the power supply VCC1 is grounded, the INPUT end PWM _ INPUT is a control signal output by the jacquard comb controller, other structures are similar to the first embodiment, and are not repeated.

Through setting up inductance coils L1, electric capacity C3 and diode D1 and constituting a boost circuit, boost circuit makes C1 and C2 be in positive negative pressure drive state, promotes piezoceramics piece's swing performance, satisfies the customer and to the needs of merchant card sley performance.

Through setting up triode Q7 and the control signal looks electricity of merchant card sley bar controller output and being connected, make drive circuit need not be connected with merchant card sley bar controller looks electricity through the connector that uses bottom plate or relay board etc. to have the switching function, drive circuit board is direct to be connected with master control circuit board looks electricity and is improved master control circuit board control signal transmission's stability, and then improve merchant card sley operating stability, on the other hand saves the cost reduction warp knitting machine's of dropping bottom plate or relay board complete machine cost, play the effect of killing two birds with one stone.

The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.

Claims (4)

1. The utility model provides a drive circuit that is used for merchant card piezoceramics piece which characterized in that: this drive circuit includes power VCC1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6 triode Q1, triode Q2, triode Q3, triode Q4, triode Q5 and triode Q6, resistance R1's one end with triode Q1's collecting electrode connect in parallel in power VCC 1's positive pole, resistance R1's the other end triode Q5's base and triode Q1's base connect in parallel in triode Q2's collecting electrode, resistance R2's one end connect in triode Q2's base, the other end is connected in a signal INPUT part INPUT1, resistance R4's one end with triode Q3's collecting electrode connect in parallel in power VCC 1's positive pole, resistance R4's the other end triode Q5's base and triode Q3's base connect in parallel in triode Q4's collecting electrode, resistance R5's one end connect in triode Q4's base, the other end connects in a signal INPUT part INPUT2, resistance R5 and VCC 3's negative pole connect in parallel in triode Q3's emitting electrode connects in parallel in triode Q6 one end triode Q6 emitting electrode connects in parallel in triode Q1's emitting electrode and emitting electrode connects in parallel in emitting electrode.

2. The driving circuit for a jacquard piezoelectric ceramic sheet as set forth in claim 1, wherein: the triode Q1, the triode Q2, the triode Q3 and the triode Q4 are all NPN transistors, and the triode Q5 and the triode Q6 are all PNP triodes.

3. The driving circuit for a jacquard piezoelectric ceramic plate as claimed in claim 1, wherein: still include electric capacity C3, diode D1, inductance coils L1, triode Q7 and resistance R7, resistance R1's one end and diode D1's negative pole connect in parallel in electric capacity C3's one end, electric capacity C3's other end ground connection inductance coils L1's one end connect in parallel in power VCC 1's positive pole, inductance coils L1's the other end reaches triode Q7's collecting electrode connect in parallel in diode D1's positive pole, triode Q7's projecting pole connect in parallel in triode Q2's projecting pole, resistance R7's one end connect in triode Q7's base, resistance R7's the other end is connected in an INPUT PWM _ INPUT, power VCC 1's negative pole ground connection.

4. The driving circuit for a jacquard piezoelectric ceramic plate as claimed in claim 1, wherein: this drive circuit is used for driving an at least merchant card sley bar, merchant card sley bar includes that a sley bar base, many are fixed guide needle, at least two on the sley bar base are used for driving every the piezoceramics piece and the at least one of guide needle are used for the drive circuit of piezoceramics piece, the piezoceramics piece includes piezoceramics piece C1 and another piezoceramics piece C2, piezoceramics piece C1's the other end reaches piezoceramics piece C2's the other end connect in parallel in power VCC 1's negative pole, piezoceramics piece C1's the other end reaches piezoceramics piece C2's the other end connect in parallel in power VCC 1's positive pole.

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