CN112160064B - Needle insertion type wireless jacquard guide bar and warp knitting machine using jacquard guide bar - Google Patents

Abstract

A needle insertion type wireless jacquard guide bar and a warp knitting machine using the jacquard guide bar are provided, the jacquard guide bar comprises a bracket, a plurality of guide bar needle units which are arranged on the bracket at intervals and used for jacquard, an insertion unit and a plurality of first conductive units with one ends capable of being inserted and pulled and arranged on the insertion unit, the insertion unit comprises a circuit substrate capable of being electrified, at least one conductive bus arranged on the circuit substrate and a plurality of insertion slots which are arranged on the circuit substrate and matched with the first conductive units, the insertion slots are mutually connected in parallel and electrically, each insertion slot is electrically connected through the conductive bus, the insertion unit is provided with the conductive bus, electric energy and signals are transmitted to the insertion slots through the conductive bus to realize the power supply effect, redundant power supply cables and communication cable ends on the jacquard guide bar are removed, the space occupied by the cable ends is reduced, and the integration level of the jacquard guide bar is improved, and the traditional structure that keeps the merchant card sley effectively keeps original merchant card sley bar's stability.

Description

Needle insertion type wireless jacquard guide bar and warp knitting machine using jacquard guide bar

Technical Field

The invention relates to the field of warp knitting machines, in particular to a needle insertion type wireless jacquard guide bar and a warp knitting machine using the jacquard guide bar.

Background

In the field of warp knitting machines, jacquard bars for jacquard are divided into a jacquard bar with electric cables and another jacquard bar without electric cables, while in the field of warp knitting machines a wireless jacquard bar refers to a jacquard bar without electric cables.

The Chinese invention patent (application No. 201220019325.0, publication No. CN 202644104U) discloses a jacquard guide bar. The jacquard guide bar comprises a piezoelectric element, a cable, a segment, a distribution band, a concave groove part and a retainer, wherein the segment is arranged above the retainer, the concave groove part is arranged on the retainer, the piezoelectric element is arranged in the concave groove part, the lower end of the piezoelectric element is connected with the jacquard guide needle, the upper part of the piezoelectric element is connected with the distribution band, the distribution band is connected with the cable, the distribution band which is distributed in the cable is connected with the upper part of the piezoelectric element, a knitting machine control part which is arranged on the distribution band separately enables a control current to flow, and the piezoelectric element is deflected to the left and the right.

The traditional piezoelectric jacquard driving system comprises a jacquard and a jacquard driving device, and the structure of the traditional piezoelectric jacquard driving system is mainly characterized in that N jacquard are installed on a guide bar, wherein the jacquard is installed on the guide bar, and the jacquard driving device is generally installed on a warp knitting frame, so that the jacquard and the jacquard are separated, and the jacquard are electrically connected with a slot of the jacquard driving device through a jacquard lead socket. Since each jacquard comprises a plurality of jacquard needles (driven by piezoelectric ceramic plates), each jacquard needle requires an independent drive cable, which results in thousands of drive cables being connected between the slave drive and the jacquard guide bar. This kind of complicated cable arrangement causes a great deal of inconvenience and restriction in practical application, if but not limited to dismantle the maintenance extremely inconvenient to greatly influence production efficiency, and restrict the development of the new technology product of merchant's card warp knitting machine, there are 16 merchant's needles on the tradition of current merchant card, need whole merchant card comb to abandon after single or several merchant's needle damages and change a new merchant card and then cause the abandoning of other merchant's needles that can normally work, cause the waste to improve manufacturing cost.

Disclosure of Invention

The invention provides a needle insertion type wireless jacquard guide bar and a warp knitting machine using the jacquard guide bar, and mainly aims to overcome the defect that the whole jacquard needs to be replaced when part of jacquard needles are damaged.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides a wireless merchant of plug-in needle formula card sley bar, this merchant card sley bar include that bracket, a plurality of interval set up be used for jacquard weave sley bar needle unit on the bracket, locate be used for carrying out the pluggable setting of power supply connection's grafting unit and a plurality of one end on the bracket and be in on the grafting unit first electrically conductive unit, the grafting unit includes a circuit substrate that can be circular telegram, at least one is located electrically conductive bus and a plurality of on the circuit substrate are located on the circuit substrate with the slot of first electrically conductive unit looks adaptation, every connect in parallel each other between the slot electricity, every pass through between the slot electrically conductive bus electricity is connected mutually.

Furthermore, the conductive bus comprises at least one power bus arranged on the circuit substrate, and each slot is electrically connected with each other through the power bus.

Through setting up every connect in parallel each other between the slot, every pass through between the slot power bus electricity is connected mutually, makes the outage of independent slot not influence the power supply and the going on of normal work of other slots on the one hand, reduces the shared space of cable, and on the other hand saves a large amount of cables and walks and improve its pleasing to the eye degree for the merchant card sley bar does not receive the influence of cable length, kills two birds with one stone.

Furthermore, the conductive bus further comprises at least one signal bus arranged on the circuit substrate, and each slot is electrically connected with each other through the signal bus.

Furthermore, the plurality of slots comprise first slots with the same number as the first conductive units and at least two second slots for accessing the driving circuit board or the signal relay card.

Through setting up every pass through between the slot signal bus electricity is connected mutually, can make single signal carry out signal transmission to the drive circuit board of pegging graft on a plurality of different slots on the one hand, and the normal work of drive circuit board goes on other slots is not influenced in the single drive circuit board trouble of on the other hand, improves drive circuit board drive job's stability, kills two birds with one stone.

Further, the insertion grooves are arranged at intervals along the arrangement direction of the guide bar needle units.

The power supply device is externally connected to the circuit substrate and is electrically connected with the conductive bus, the power supply device integrates power supply and communication, one end of the conductive bus is electrically connected with the anode of the power supply device, and the other end of the conductive bus is electrically connected with the cathode of the power supply device.

Further, the other end of the first conductive unit is integrally connected with the guide bar needle unit.

A jacquard mechanism comprises a plurality of jacquard guide bars arranged at intervals.

A warp knitting machine comprises a plurality of jacquard guide bars arranged at intervals.

A plurality of inserting units are arranged, adjacent inserting units are electrically connected through an electric lead, and two ends of the electric lead are respectively and electrically connected with corresponding electric buses.

Compared with the prior art, the invention has the beneficial effects that:

the jacquard guide bar is simple in structure and strong in practicability, the conductive cables on the corded jacquard guide bar are integrated on the circuit substrate by arranging the conductive bus in the circuit substrate, the guide bar needle unit is arranged on the plug-in unit in a pluggable mode, on one hand, the plug-in unit can be plugged to play a role of connecting and fixing the displacement driving unit, on the other hand, the guide bar unit can be detached independently and independently, replaced and maintained, on the other hand, the conductive bus is arranged on the plug-in unit, so that electric energy and signals are transmitted to the slot through the conductive bus to achieve the power supply effect, the redundant power supply cables and communication cable ends on the jacquard guide bar are removed, the occupied space of the cable ends is reduced, the integration level of the jacquard guide bar is improved, the traditional structure of the jacquard guide bar is kept, the stability of the original jacquard guide bar is effectively kept, and two purposes are achieved.

Drawings

Fig. 1 is a schematic structural view of a warp knitting machine.

Fig. 2 is a schematic structural diagram of the circuit substrate.

Fig. 3 is a schematic structural view of two circuit substrates connected together.

Figure 4 is the structure of merchant card comb sketch map.

Fig. 5 is a schematic structural view of a portion a in fig. 4.

Fig. 6 is a schematic structural view of the slot portion.

Fig. 7 is a circuit diagram of the power supply mechanism.

Detailed Description

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

Referring to fig. 1, the needle type wireless jacquard comb and the warp knitting machine using the same comprise a frame 51, a needle bed mechanism 52 arranged on the frame 51, a power mechanism 53 arranged on the frame 51 for providing power, and a jacquard comb mechanism for knitting yarns in a loop, wherein the jacquard comb mechanism comprises a plurality of jacquard combs 1 arranged above the needle bed mechanism 52 at intervals, and the warp knitting machine is provided with a plurality of jacquard combs 1 arranged at intervals.

The conventional warp knitting machines have a single or double needle bed with knitting needles, knock-over bars arranged adjacent to the knitting needles, a core bed cooperating with the knitting needles, the needle bed being guided by a guide mechanism. A drive circuit board for driving the jacquard bars can control eight jacquard bars, one jacquard bar can control sixteen guide pins 52, and the total number of guide pins 52 is twenty hundred and ten, and the warp knitting machine can be a model RDPJ6/2 or a model RJ 4/1.

The conventional structure and operation of the conventional warp knitting machine are widely known to those skilled in the art, and other conventional structures of the warp knitting machine can be referred to a warp knitting machine with a jacquard driving device disclosed in the chinese utility model patent (application No. 201920129050.8, publication No. 201920129050.8), and can be referred to a jacquard warp knitting machine for forming looped jacquard warp-knitted fabrics disclosed in the chinese invention patent (application No. 201410819002.3, publication No. CN 104452077B), which will not be described herein.

Referring to fig. 4, the jacquard guide bar includes a bracket 151, a plurality of guide bar needle units 3 arranged on the bracket 151 at intervals for jacquard, an inserting unit 17 arranged on the bracket 151 for supplying power to the guide bar needle units 3, and a plurality of first conductive units 2 arranged on the inserting unit 17 with one end being insertable, wherein the other end of the first conductive unit 2 is connected with the guide bar needle units 3 into a whole.

Referring to fig. 1 and 4, the plugging unit 17 includes a circuit substrate 21 capable of being powered on, at least one conductive bus 23 disposed on the circuit substrate 21, a plurality of slots 22 disposed on the circuit substrate 21 at intervals and adapted to the first conductive unit 2, at least two power connection ports 24 disposed on two ends of the circuit substrate 21, a second conductive unit 26 disposed in the slot 22, a housing 17 disposed on the slot 22 and used for fixedly plugging the first conductive unit 2, a protrusion 44 disposed on one end side of the housing 17 of the slot 22 and pivotally connected to the protrusion, and a locking member 4 disposed on one end of the housing 17 of the slot 22 and capable of swinging.

The circuit substrate 21 is further externally connected with a power supply mechanism which is electrically connected with the conductive bus 23 and integrates power supply and communication, one end of the conductive bus 23 is electrically connected with the positive electrode of the power supply mechanism, the other end of the conductive bus 23 is electrically connected with the negative electrode of the power supply mechanism, the power supply mechanism and the conductive bus can be connected through a conductive contact piece arranged on the circuit substrate, and the conductive contact piece can be copper or flexible conductive metal materials or other conductive metal materials.

Referring to fig. 4 and 5, the specific bracket 151 in this embodiment includes a base 15, a plurality of first mounting grooves 12 provided on the front end of the base 15 for mounting the guide pins 52, and a plurality of second mounting grooves 16 provided on the middle portion of the base 15, wherein the first mounting grooves 12 are arranged to extend along the arrangement direction of the guide pins 52, and the second mounting grooves 16 are arranged to extend along the arrangement direction of the displacement driving unit 14.

The guide bar needle unit 3 comprises a plurality of displacement driving units 14 arranged on the base 15 at intervals, a first connecting piece 51 arranged on one end of the displacement driving unit 14 and a yarn guide needle 52 arranged on the other end of the first connecting piece 51, and the other end of the displacement driving unit 14 is electrically connected with the first conductive unit 2.

The plurality of displacement driving units 14 are arranged on the second mounting groove 16, one end of the displacement driving unit 14 facing the first mounting groove 12 is provided with a first connecting piece 51, the other end of the first connecting piece 51 is provided with a yarn guide needle 52, the middle part of the yarn guide needle 52 is inserted into the first mounting groove 12, and the displacement driving unit 14 can swing on the base 15.

The displacement driving unit 14 may be a piezoelectric element unit, and in this embodiment, specifically may be a piezoelectric ceramic sheet material, and may be a long-strip piezoelectric ceramic body, and the piezoelectric ceramic body deforms when being loaded with a predetermined voltage, so as to drive the first connecting piece 51 arranged at one end of the displacement driving unit 14 to displace, and the first connecting piece 51 displaces to drive the yarn guide needle 52 to move in one displacement direction. The displacement direction of the yarn guide needle 52 is the swinging direction of the piezoelectric ceramic body after being electrified, and all the yarn guide needles 52 are sequentially arranged along the direction in a displacement mode.

The number of slots 22 matches the number of displacement drive units 14.

In this embodiment, the specific number of the insertion slot 22 may be sixteen, and sixteen first conductive units 2 are fittingly installed, and sixteen displacement driving units 14 and sixteen yarn guiding needles 52 correspondingly driven by the sixteen displacement driving units 14 are fittingly connected to the sixteen first conductive units.

Through setting up the pluggable insertion of first electrically conductive unit and establishing on the grafting unit, make when single specific displacement drive unit damage the back, through extracting first electrically conductive unit from the grafting unit, change a piezoelectric element that can normally use and peg graft first electrically conductive unit again on the grafting unit, realize that single specific merchant card needle damages the technological effect that only needs to change single specific merchant card needle, it continues to use and carries out work to remain original merchant card needle that can normally use, reduce merchant card sley maintenance cost, thereby reduction in production cost, on the other hand realizes the change of merchant card needle through the first electrically conductive unit of plug, its change is rapid, the change time is short and long when having saved the later maintenance of merchant card sley, and the work efficiency is improved, and two functions are obtained at one stroke.

Referring to fig. 1 and 2, each of the slots 22 is connected in parallel with each other, and each of the slots 22 is electrically connected to each other by a conductive bus 23.

The conductive bus 23 includes at least one power bus 231 disposed on the circuit substrate 21 and at least one signal bus 232 disposed on the circuit substrate 21.

The slots 22 are electrically connected to each other through a power bus 231, the slots 22 are electrically connected to each other through a signal bus 232, and the slots 22 are arranged at intervals along the extending direction of the arrangement of the bar needle units 3.

The plurality of slots 22 include first slots 22 having the same number as the first conductive units 2 and at least two second slots 22 for receiving a driving circuit board or a signal relay card.

Referring to fig. 4, 5 and 6, the first conductive unit 2 includes a conductive connecting member main body 18 and a conductive insertion portion 19 disposed on one end of the connecting member main body 18, the other end of the connecting member main body 18 is electrically connected to the displacement driving unit 14, the insertion portion 19 is inserted into the insertion unit 17, and the displacement driving unit 14 is disposed on the upper portion of the connecting member main body 18 and extends toward the transverse direction. The insertion part 19 is integrated with the displacement drive unit 14.

The arrangement of the inserting part improves the connection compatibility between the inserting part and the conductive inserting unit 17, and the inserting and pulling operation is convenient.

In this embodiment, at least one first groove 31 adapted to the locking member 4 is disposed at one end of the first conductive unit 2, specifically, the first groove 31 is disposed on one side surface of the connector main body 18, the first groove 31 is located below the displacement driving unit 14, the connector main body 18 may be in a long strip shape or a square shape, and preferably, the connector main body 18 is in a long strip shape.

The first grooves 31 can be two grooves respectively arranged on the left side and the right side of the connecting piece main body 18 in the length direction, and the two clamping pieces 4 which are matched with each other are clamped on the first grooves 31 in a swinging mode.

The connector main body 18 is made of a PCB, the plugging portion 19 is a plurality of metal contacts 32 arranged at an interval and transversely on one end of the PCB, the metal contacts 32 may be gold, copper or other conductive metals, the metal contacts 32 are inserted into the slots 22 and electrically connected with the second conductive units 26, and in this embodiment, the plugging portion 19 may be a gold finger.

Referring to fig. 5 and 6, the upper end of the locking member 4 is locked on the first groove 31 in a swingable manner, one end of the first conductive unit 2 is inserted into the housing 17 of the slot 22 in a pluggable manner and is electrically connected with one end of the second conductive unit 26, and the other end of the second conductive unit 26 is electrically connected with the driving circuit board.

Referring to fig. 5, the locking member 4 includes a pivot portion 41 disposed on one end of the housing 17 of the slot 22, a swing block 42 extending toward the slot 22 and disposed on one end of the pivot portion 41, a locking groove 43 disposed on the other end of the pivot portion 41 and adapted to the protrusion 44, and a locking block 45 disposed on the top of the locking groove 43 and adapted to the first groove 31, wherein the first conductive unit 2 drives the pivot portion 41 to rotate by inserting the slot 22 to push the swing block 42 to move, so that the locking groove 43 is respectively embedded on the protrusion 44, and the locking block 45 is embedded in the first groove 31.

The stability of the first conductive unit 2 installed on the slot 22 is improved by arranging the fastener to be clamped on the first groove, so that the stability of the second conductive unit 26 for supplying power to the first conductive unit 2 is ensured.

Referring to fig. 1, the first conductive unit 2 is inserted into the slot 22 in a pluggable manner and electrically connected to one end of the second conductive unit 26, the power bus 231 and the signal bus 232 at the other end of the second conductive unit 26 are electrically connected to each other, and a plurality of the second conductive units 26 are connected in parallel.

By arranging a plurality of second conductive units 26 in parallel connection, when the second conductive unit 26 at a specific position is powered off, the power supply of other second conductive units 26 connected in series is not affected.

In this embodiment, the circuit substrate 21 may be a PCB, the plurality of second conductive units 26 may be conductive metal conductive sheets, the metal conductive sheets may be gold or copper, or flexible conductive metal sheets or other conductive metals, and the second conductive units 26 are connected to the first conductive units 2 for conducting electricity.

Several metal conductive sheets (the metal conductive sheet is the second conductive unit 26) can be connected in parallel by using an electric lead, and when a single metal conductive sheet at a specific position is damaged, the power supply of other metal conductive sheets is not influenced.

The jacquard mechanism comprises a mounting seat arranged above a needle bed mechanism and used for mounting jacquard guide bars, a plurality of jacquard guide bars arranged at intervals and electric leads used for connecting adjacent plug-in units 17, wherein the plug-in units 17 are arranged at intervals, the adjacent plug-in units 17 are electrically connected through the electric leads, and two ends of the electric leads are respectively electrically connected with corresponding electric conduction buses 23.

Referring to fig. 2, a plurality of plugging units 17 are provided, adjacent plugging units 17 are electrically connected through an electrical conductor 241, two ends of the electrical conductor 241 are electrically connected with the corresponding conductive bus 23, two ends of the electrical conductor 241 may be provided with plugging connectors respectively adapted to the electrical connection port 24, and the plugging connectors are pluggable and plugged into the electrical connection port 24.

Referring to fig. 7, the power supply mechanism includes a first dc power supply V1, a second dc power supply V2, and an electronic switch K1, and the power supply is composed of a combination of the first dc power supply V1, the second dc power supply V2, and the electronic switch K1.

In the specific embodiment of the first dc power supply V1 and the second dc power supply V2, the voltage of the first dc power supply V1 is greater than the voltage of the second dc power supply V2, the negative terminal of the first dc power supply V1 is electrically connected to the negative terminal of the second dc power supply V2 to form the negative terminal of the output power supply, the positive terminal of the first dc power supply V1 is electrically connected to the electronic switch K1 and outputs the positive terminal of the power supply, and the positive terminal of the second dc power supply V2 is electrically connected to the diode D1 and outputs the positive terminal of the power supply to form the positive terminal of the power supply.

The electronic switch K1 may be a high power semiconductor device, such as a transistor or a MOS.

In the embodiment, the communication signal itself is a series of binary signals and controls the electronic switch K1, and the 0 state in the communication signal corresponds to the electronic switch K1 being turned off; state 1 corresponds to electronic switch K1 being closed.

The working process of the power supply mechanism comprises the following steps: 1. in the power-on state, the positive electrode of the power supply at the input end always has voltage.

When the electronic switch K1 is turned off, the output voltage is the voltage of the second direct current power supply V2;

when the electronic switch K1 is closed, the output voltage is the voltage of the first direct-current power supply V1;

because the electronic switch K1 is controlled by the communication signal source, when there is communication, the communication signal is modulated on the positive electrode of the output power supply to form a communication signal, the 0-state control electronic switch K1 is turned off, the 1-state control electronic switch K1 is turned on, and the first direct-current power supply V1 and the second direct-current power supply V2 correspond to the maximum value and the minimum value of the allowable fluctuation range of the power supply voltage of the displacement driving unit 14, so as to ensure that the displacement driving unit 14 supplies power to control the displacement distance of the displacement driving unit 14.

The 1 state of the communication signal corresponds to the first direct current power supply V1, the 0 state corresponds to the second direct current power supply V1, on one hand, binary 01 communication signal transmission is achieved, on the other hand, a voltage interval is kept between the voltage of the first direct current power supply V1 and the voltage of the second direct current power supply V2, power supply and communication are combined into a whole, the number of connecting cables is reduced, the number of connecting ports is also reduced, the integration level of equipment is improved, and two purposes are achieved at one stroke.

The electronic switch K1 comprises a diode D2, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a triode Q2, a triode Q3, a triode Q4, a triode Q5, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a MOS transistor Q1 and a voltage stabilizing diode ZD 1;

wherein the MOS transistor Q1 is a P-channel MOS transistor.

The transistor Q2 and the transistor Q4 are PNP type transistors.

The transistor Q5 and the transistor Q3 are NPN transistors.

One end of the capacitor C1, one end of the capacitor C2 and one end of the capacitor C3 are all grounded in parallel, and the other end of the capacitor C1, the other end of the capacitor C2 and the other end of the capacitor C3 are electrically connected with the positive electrode of the first direct current power supply V1 in parallel;

the anode of the voltage-stabilizing diode ZD1, the base of the triode Q4, one end of the resistor R2 and one end of the resistor R3 are connected in parallel with the base of the triode Q3, and the other end of the resistor R3 is connected with the collector of the triode Q5;

the cathode of the voltage-stabilizing diode ZD1, the source of the MOS transistor Q1, the emitter of the triode Q2 and the other end of the resistor R2 are all connected in parallel with the anode of the first direct-current power supply V1;

the emitter of the transistor Q3, the emitter of the transistor Q4 and the collector of the transistor Q2 are connected in parallel with the gate of the MOS transistor Q1;

the collector of the transistor Q4, the emitter of the transistor Q5 and the anode of the diode D2 are connected in parallel and grounded;

one end of the resistor R1 is connected to the base electrode of the triode Q2, and the other end of the resistor R1 is connected to the collector electrode of the triode Q3;

one end of the resistor R4, one side of the capacitor C4 and the cathode of the diode D2 are connected in parallel with the base of the triode Q5;

the other end of the resistor R4 and the other end of the capacitor C4 are connected in parallel with the input end of a communication signal source;

the drain of MOS transistor Q1 and the cathode of diode D1 are connected in parallel to the positive input terminal of the jacquard comb.

The working principle of the above circuit includes the following:

1. the capacitor C1, the capacitor C2 and the capacitor C3 form a power supply filter circuit.

2. The INPUT is a communication signal INPUT end, and the driving circuit comprises a triode Q2, a triode Q3, a triode Q4, a triode Q5, a resistor R1, a resistor R3, a resistor R4, a capacitor C4 and a diode D2.

3. The clamping circuit consists of a resistor R2 and a voltage stabilizing diode ZD 1. The MOS transistor Q1 is a 1P-channel MOS, and is used as an analog switch.

The working process of the circuit comprises the following steps:

1. assume that initially, the INPUT level of INPUT is 0, and the first dc power supply V1> the second dc power supply V2.

2. The triode Q5 is turned off, and since the diode D1 is reversely biased, the potential at point a is the first direct current power supply V1, and when the forward voltage drop of the base of the triode Q3 is neglected at the level at point B, B = a is the first direct current power supply V1, and the MOS transistor Q1 is a P-channel MOS, the MOS transistor Q1 is turned off.

3. When the INPUT has a signal INPUT, i.e. the level is 1, the signal is firstly injected into the base of the transistor Q5 through the capacitor C4, since there is no voltage on the capacitor C4 at the beginning, which is equivalent to a short circuit, the base of the transistor Q5 has a relatively large driving current in a short time, the transistor Q5 is turned on sharply, and when the capacitor C4 is charged, the resistor R4 continues to provide a conducting current. Capacitor C4 therefore functions to turn transistor Q5 on. The resistor R3 is a current-limiting resistor, the resistor R2 is a bleeder resistor, the zener diode ZD1 is a clamping diode, and the voltage between the source and the gate of the MOS transistor Q1 is constant due to the presence of the zener diode ZD1, namely the driving voltage is constant, so that the gate of the MOS transistor Q1 is prevented from being broken down when the voltage of the first direct-current power supply V1 is higher than the voltage-resistant voltage of the gate of the MOS transistor Q1, and the MOS transistor Q1 is prevented from being damaged.

4. After the transistor Q5 is turned on, the voltage = Vzd1 between the source and the gate of the MOS transistor Q1, so the MOS transistor Q1 is turned on. The transistor Q4 is used to accelerate the discharge of the charge at the gate of the MOS transistor Q1 and accelerate the conduction of the MOS transistor Q1. Therefore, when INPUT =1, the MOS transistor Q1 is turned on, and the voltage of the first dc power supply V1 is higher than the voltage of the second dc power supply V2, so that the diode D1 is reversely biased, and V _ OUT = V1.

5. When the INPUT changes from 1 to 0, the charge stored in the capacitor C4 is discharged through the diode D2, and a reverse bias voltage is formed between the emitter and the base of the transistor Q5, the transistor Q5 is turned off rapidly, which is equivalent to an open circuit, and the potential at the point a rises rapidly. The resistor R2 is used for providing a leakage loop for the source-gate capacitance of the MOS transistor Q1, and preventing the MOS transistor Q1 from being always in a conducting state due to the clamping action of the Zener diode ZD 1. When the potential at the point a rises to be close to the first dc power supply V1, the MOS transistor Q1 is turned off, and the diode D1 is forward biased, so that V _ OUT = V2.

In summary, the V _ OUT output voltage is controlled by the INPUT level, INPUT =0, V _ OUT = V2; INPUT =1, V _ OUT = V1.

The second embodiment is different from the first embodiment in that: referring to fig. 1 and 6, the connector body 18 is made of a PCB, the plug part 19 is a plurality of metal contacts arranged at an end of the PCB and capable of conducting electricity at intervals in a transverse direction, the metal contacts may be gold or copper or other conductive metals, the metal contacts are inserted into the slots 22 and electrically connected to the second conductive units 26, and in this embodiment, the plug part 19 may be a gold finger.

The printed circuit board of the connector main body 18 may further be integrated with circuit components for adjusting current and voltage to form a power supply driving circuit for supplying power to the displacement driving unit 14, wherein the current and voltage applied to the displacement driving unit 14 are individually supplied by a single chip, in this embodiment, the specific arrangement is to individually control the current and voltage on the second conductive unit 26 in the slot 22 at a specific position, and the first conductive unit 2 is inserted into the slot 22 to supply power to the displacement driving unit 14, so as to realize control of the displacement driving unit 14 on a single chip. The current and voltage applied to the single chip displacement driving unit 14 are controlled according to the requirements of the spinning pattern process to realize the control of the shaking condition and the shaking amplitude of the single yarn guide needle 52.

Taking the example that sixteen guide needles 52 exist on the jacquard guide bar, the sixteen guide needles 52 respectively correspond to the second conductive units 26 in the sixteen slots 22, when a single guide needle 52 is independently controlled to be in a static state according to the needs of the spinning pattern process, only the second conductive unit 26 in the slot 22 at a specific position required by the process needs to be controlled not to be electrified, the guide needle 52 at the specific position is static, one guide needle 52 is static for guiding yarns, and the second conductive units 26 corresponding to the other fifteen guide needles 52 are electrified, so that the fifteen guide needles 52 perform jacquard work.

The working state of the yarn guide needle 52 at the specific position is controlled independently (the working state can be a static state of the yarn guide needle 52 when the piezoelectric element unit is not electrified or a jacquard working state of the yarn guide needle 52 when the piezoelectric element unit is electrified).

If more yarn guide needles 52 are required to be in a static non-energized state, only the second conductive units 26 in the slots 22 at a plurality of corresponding positions need to be controlled not to be energized, which is similar to the above case where sixteen yarn guide needles 52 exist on the jacquard guide bar, and thus the description thereof is omitted.

A communication circuit can be further disposed on the base circuit board 27 to be electrically connected to a driving circuit board for driving the jacquard guide bar to transmit control data. The communication circuit may be an RS485 communication circuit or a CAN bus communication circuit, and the base circuit board 27 may further be provided with a communication interface adapted to the RS485 communication circuit or the CAN bus communication circuit, where the communication interface is an RS485 communication interface or a CAN bus communication interface.

The RS485 communication interface is a serial-port-based communication interface, is consistent with the data receiving and transmitting operation of the RS232 communication interface, and uses a bottom-layer driver of WinCE. The RS485 communication interface is in a half-duplex data communication mode, data can not be transmitted and received simultaneously, in order to ensure that data can not be transmitted and received, the data can be transmitted and received by hardware through direction switching, and correspondingly, the transmitting and receiving processes must be strictly separated on software. The half-duplex network formed by RS485 communication interfaces is generally a two-wire system, shielded twisted pair transmission is adopted, the wiring mode is that a bus type topological structure can be connected with 32 nodes on the same bus at most, and a master-slave communication mode is generally adopted in the RS485 communication network, namely, one master machine is provided with a plurality of slave machines. Electrical characteristics of RS 485: a logic "0" is represented by a voltage difference between the two wires of + (2-6) V; a logical "1" is represented by a voltage difference between the two wires of- (2-6) V. The interface signal level is lower than RS-232-C, the chip of the interface circuit is not easy to damage, and the level is compatible with the TTL level and can be conveniently connected with the TTL circuit.

The CAN bus communication interface integrates the functions of a physical layer and a data link layer of a CAN protocol, and CAN complete framing processing of communication data, including bit filling, data block encoding, cyclic redundancy check, priority discrimination and other works. Compared with a general communication bus, the data communication of the CAN bus has outstanding reliability, instantaneity and flexibility, typical application protocols of the CAN bus comprise SAEJ1939/ISO11783, CANopen, CANaerospace, DeviceNet, NMEA2000 and the like, and other structures are similar to the first embodiment and are not repeated herein.

The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.

Claims (10)

1. The utility model provides a wireless merchant of contact pin formula blocks comb which characterized in that: this merchant card sley bar includes that bracket, a plurality of interval set up be used for jacquard weave sley bar needle unit on the bracket, locate be used for carrying out the setting that can plug-in unit and a plurality of one end that the power supply is connected to sley bar needle unit on the bracket is in first electrically conductive unit on the plug-in unit, the plug-in unit includes a circuit substrate that can switch on, at least one locates electrically conductive bus on the circuit substrate, a plurality of interval locate on the circuit substrate with the slot of first electrically conductive unit looks adaptation, at least two locate respectively on the both ends of circuit substrate connect the electric port, locate the electrically conductive unit of second in the slot, locate on the slot be used for fixed the slot shell of first electrically conductive unit of pegging graft, locate lug and pin joint on slot shell one end side and locate slot shell one and serve wobbling buckle spare.

2. The needle-inserting type jacquard-free guide bar as claimed in claim 1, wherein: the conductive bus comprises at least one power bus arranged on the circuit substrate, and each slot is electrically connected with each other through the power bus.

3. The needle-inserting type jacquard-free guide bar as claimed in claim 2, wherein: the conductive bus also comprises at least one signal bus arranged on the circuit substrate, and each slot is electrically connected with each other through the signal bus.

4. The needle-inserting type jacquard-free guide bar as claimed in claim 3, wherein: the plurality of slots comprise first slots with the same number as the first conductive units and at least two second slots for accessing a driving circuit board or a signal relay card.

5. The needle-inserting type jacquard-free guide bar as claimed in claim 4, wherein: the slots are arranged at intervals along the arrangement direction of the guide bar needle units.

6. The needle-inserting type jacquard-free guide bar as claimed in claim 1, wherein: the power supply device is externally connected to the circuit substrate and is electrically connected with the conductive bus, the power supply device integrates power supply and communication, one end of the conductive bus is electrically connected with the positive pole of the power supply device, and the other end of the conductive bus is electrically connected with the negative pole of the power supply device.

7. The needle-inserting type jacquard-free guide bar as claimed in claim 1, wherein: the other end of the first conductive unit is connected with the guide bar needle unit into a whole.

8. A jacquard mechanism, characterized in that: the jacquard mechanism comprises a plurality of jacquard guide bars arranged at intervals, and the jacquard guide bar is any one of the jacquard guide bars in claims 1-7.

9. A warp knitting machine characterized in that: the warp knitting machine comprises a plurality of jacquard guide bars arranged at intervals, and the jacquard guide bars are any one of the jacquard guide bars in claims 1-7.

10. The warp knitting machine of claim 9, wherein: the inserting units are provided with a plurality of inserting units, adjacent inserting units are electrically connected through an electric lead, and two ends of the electric lead are respectively and electrically connected with the corresponding electric conduction buses.

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