CN212324068U

CN212324068U - Ultrasonic circuit for mask ear line

Info

Publication number: CN212324068U
Application number: CN202020827816.2U
Authority: CN
Inventors: 杨书军; 郑胜飞; 吴黎华
Original assignee: Dongguan Noble Machinery Co ltd
Current assignee: Dongguan Noble Machinery Co ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2021-01-08
Anticipated expiration: 2030-05-18

Abstract

A mask ear wire ultrasonic circuit relates to the field of ultrasonic circuits and comprises a control circuit, a relay KM1, a feedback circuit, a transformer BT6, an oscillating circuit and an AC/DC conversion circuit; the control circuit is electrically connected with a coil of the relay KM1, the feedback circuit is electrically connected with a normally open contact of the relay KM1, the AC/DC conversion circuit is electrically connected with an oscillating circuit, the oscillating circuit is electrically connected with the transformer BT6, and the transformer BT6 is electrically connected with the feedback circuit; the AC/DC conversion circuit provides alternating current for the oscillating circuit, the control circuit drives the relay KM1 to start the feedback circuit at regular time, and the feedback circuit receives voltage and current signals of the oscillating circuit through the transformer BT6 to control output; the relay KM1 is controlled to pull in at fixed time by utilizing the time control chip U1, and the relay KM1 is controlled to pull in at fixed time by the MOS tube Q1 of the feedback circuit.

Description

Ultrasonic circuit for mask ear line

Technical Field

The utility model belongs to the technical field of the ultrasonic circuit and specifically relates to a gauze mask ear wire ultrasonic circuit is related to.

Background

The ultrasonic plastic welding principle is that a generator generates high-voltage and high-frequency signals, the signals are converted into high-frequency mechanical vibration through an energy conversion system, the high-frequency mechanical vibration is applied to a plastic product workpiece, the temperature transmitted to an interface is increased through the surface of the workpiece and the friction among molecules, when the temperature reaches the melting point of the workpiece, the interface of the workpiece is rapidly melted and then filled in a gap between the interfaces, and when vibration stops, the workpiece is simultaneously cooled and shaped under certain pressure, so that perfect welding is achieved.

The novel ultrasonic plastic welding machine has unique effect on welding soft PE and PP materials and plastic welding pieces with super-large diameter and super-long length, and can meet the requirements of various products; the welding set that the ear line on the welding gauze mask adopted adopts just adopts ultrasonic welding machine, when the ultrasonic wave acts on thermoplastic plastics contact surface, can produce the high frequency vibration of several ten thousand times per second, this kind of high frequency vibration that reaches certain amplitude conveys ultrasonic energy to the welding area through last weldment, because the welding area is two welded interface department acoustic resistance greatly, consequently can produce local high temperature. And because the plastic has poor thermal conductivity, the plastic cannot be diffused in time and is gathered in a welding area, so that the contact surfaces of the two plastics are quickly melted, and the two plastics are fused into a whole after a certain pressure is applied. After the ultrasonic wave stops acting, the pressure is kept for several seconds to solidify and form, so that a firm molecular chain is formed, the purpose of welding is achieved, and the welding strength can be close to the strength of raw materials.

At present, an ultrasonic circuit for welding a mask ear wire generally comprises a control circuit, an oscillator circuit and an AC/DC conversion circuit, and a feedback circuit is added in the circuit to control output so as to play a role of stabilizing the circuit in order to improve the stability of the circuit during working.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.

A mask ear wire ultrasonic circuit comprises a control circuit, a relay KM1, a feedback circuit, a transformer BT6, an oscillating circuit and an AC/DC conversion circuit; the control circuit is electrically connected with a coil of the relay KM1, the feedback circuit is electrically connected with a normally open contact of the relay KM1, the AC/DC conversion circuit is electrically connected with an oscillating circuit, the oscillating circuit is electrically connected with the transformer BT6, and the transformer BT6 is electrically connected with the feedback circuit; the AC/DC conversion circuit provides alternating current for the oscillating circuit, the control circuit drives the relay KM1 to start the feedback circuit at regular time, and the feedback circuit receives voltage and current signals of the oscillating circuit through the transformer BT6 to control output.

Compared with the prior art, the beneficial effects of the utility model are that:

the time control chip U1 is used for controlling the relay KM1 to pull in a timing mode, the relay KM1 is used for controlling the feedback circuit MOS tube Q1 to pull in the timing mode, the transformer BT6 is used for receiving the voltage and the current of the oscillating circuit and sending the voltage and the current to the feedback circuit, the feedback circuit receives the voltage and the current and then conducts the MOS tube Q2 and the MOS tube Q3 to feed back the circuit, and therefore the function of feeding back the circuit in the timing mode is achieved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a circuit module connection diagram of the present invention.

Fig. 2 is a circuit structure diagram of the control circuit and the feedback circuit of the present invention.

Fig. 3 is a schematic structural diagram of the middle oscillating circuit of the present invention.

Fig. 4 is a schematic structural diagram of the AC/DC converter circuit of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, in an embodiment of the present invention, a mask ear line ultrasonic circuit includes a control circuit 1, a relay KM1, a feedback circuit 2, a transformer BT6, an oscillation circuit 3, and an AC/DC conversion circuit 4; the control circuit 1 is electrically connected with a coil of the relay KM1, the feedback circuit 2 is electrically connected with a normally open contact of the relay KM1, the AC/DC conversion circuit 4 is electrically connected with the oscillation circuit 3, the oscillation circuit 3 is electrically connected with the transformer BT6, and the transformer BT6 is electrically connected with the feedback circuit 2; the AC/DC conversion circuit 4 provides alternating current to the oscillating circuit 3, the control circuit 1 drives the relay KM1 to start the feedback circuit 2 at fixed time, and the feedback circuit 2 receives voltage and current signals of the oscillating circuit 3 through the transformer BT6 to control output.

In the above description, AC power is supplied to the oscillator circuit 3 through the AC/DC converter circuit 4, and the oscillator circuit 3 utilizes the charge and discharge of the capacitor and the inductor, which do not remember energy loss, to generate periodic variation in current and voltage in the circuit, thereby increasing the frequency, generating ultrasonic waves, and realizing the ultrasonic welding function; control circuit 1 drives relay KM1 through time control chip U1, drive feedback circuit 2MOS pipe Q1 and switch on, feedback circuit 2 makes diode D9 and D8 switch on through transformer BT6 drive MOS pipe D10 and D11 simultaneously, feed back the circuit, realize the effect of stabilizing circuit, the cooperation of time control chip U1 and relay KM1 realizes regularly actuation, thereby realize regularly carrying out the function of feedback to the circuit.

Further as shown in fig. 2, the control circuit 1 includes a time control chip U1 with a model number "NE 555 p", a resistor R1-5, a resistor R1-4, a capacitor C1-3 and a diode D1-2, one end of the resistor R1-5 is connected with the 2 nd pin of the time control chip U1, the other end of the resistor R1-5 is connected with a high level, one end of the resistor R1-4 is connected with the 2 nd pin of the time control chip U1, the other end of the resistor R1-4 is connected with the 1 st coil end of the relay KM1, one end of the capacitor C1-3 is connected with the 2 nd pin of the time control chip U1, the other end of the capacitor C1-3 is connected with the 1 st coil end of the relay KM1, the cathode of the diode D1-2 is connected with the 3 rd coil end of the time control chip U1, the anode of the diode D1-2 is connected with the 1 st coil end of the relay KM1, the 2 nd pin of the time control chip U1 is connected with the 2 nd coil end of the relay.

As further shown in fig. 2, the feedback circuit 2 includes a resistor R2, a resistor R3, a resistor R4, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a diode D5, a diode D12, a diode D8, a diode D9, a diode D11, a capacitor C1, a capacitor C7, a capacitor C6, a capacitor C4, a capacitor C2, a MOS transistor Q1, a MOS transistor Q2, and a MOS transistor Q3; one end of the resistor R2 is connected to the 1 st normally-open contact of the relay KM1, one end of the resistor R2 is further connected to the anode of the diode D5, the other end of the resistor R2 is connected to one end of the resistor R3, the other end of the resistor R2 is further connected to the first pin of the MOS transistor Q1, the other end of the resistor R3 is connected to the capacitor C4, the other end of the resistor R4 is further grounded, the cathode of the diode is connected to the 2 nd pin of the MOS transistor Q4, the cathode of the diode Q4 is connected to the 2 nd pin of the MOS transistor Q4, the 3 rd pin of the MOS transistor Q4 is connected to the resistor R4, the MOS transistor Q4 is connected to the anode of the diode D4 and the 2 nd pin of the MOS transistor Q4 through the resistor R4, the cathode of the diode D4 is connected to the anode of the diode D4 and the cathode of the diode Q4 and the diode D4 is connected to the anode of the diode D4 through the resistor R4 and the diode D4 and the cathode of the diode Q4, the anode of the diode D9 is grounded, the 1 st pin of the MOS transistor Q2 is connected with the 2 nd pin of the transformer BT6, and the 1 st pin of the MOS transistor Q3 is connected with the 5 th pin of the transformer BT 6; a pin 2 of the MOS transistor Q2 is connected to one end of a resistor R4, the other end of the resistor R4 is connected to a pin 6 of the transformer BT6, the other end of the resistor R4 is also connected to one end of a resistor R11, the other end of the resistor R11 is connected to a cathode of a diode D11, an anode of the diode D11 is connected to a pin 2 of the MOS transistor Q3, and a pin 2 of the MOS transistor Q2 is also connected to the pin 2; one end of a capacitor C2 is connected, the other end of a capacitor C2 is connected with the anode of a diode D12, the cathode of a diode D12 is connected with one end of a resistor R8, the other end of a resistor R8 is connected with the 3 rd pin of a transformer BT6, one end of a resistor R7 and one end of a capacitor C6, the other end of a capacitor C6 is connected with the anode of a diode D12, the other end of a capacitor C6 is grounded, the other end of a resistor R7 is connected with the 2 nd pin of a MOS tube Q3, the other end of a resistor R7 is also connected with one end of a capacitor C1, the other end of the capacitor C1 is connected with the 6 th pin of a transformer BT6, one end of a capacitor C7 is connected with the 2 nd pin of a MOS tube Q.

As further shown in fig. 3, the oscillator circuit 3 includes a transformer chip BT5, a terminal J1, an inductor BT4, an inductor J4, a transformer L2, a terminal J6, a capacitor C8, a capacitor C9A, a capacitor C9B, a capacitor C9C, a capacitor C10, a capacitor C11, and a resistor R5; two ends of a resistor R5 are respectively connected with a 1 st pin and a 7 th pin of a transformer BT6, a 1 st pin of the transformer BT6 is connected with a 3 rd pin and a 4 th pin of a terminal J6, the 1 st pin of the transformer BT6 is also connected with a capacitor C11, the 1 st pin of the transformer BT6 is connected with a 3 rd pin of a transformer L2 through a capacitor C11, the 4 th pin of the transformer L2 is connected with a high level, the 2 nd pin of the transformer L2 is grounded, the 1 st pin of the transformer L2 is connected with a 2 nd pin of an inductor BT4, the 7 th pin of the inductor J4 is connected with a 7 BT T pin of a terminal J4, the 1 st pin of the terminal J4 is connected with a 1 st pin of a terminal J4 in series, the 1 st pin of the terminal J4 is also connected with a capacitor C9 4, a capacitor C9 4 and a capacitor C9 4, the 7 st pin of the inductor BT4 is connected with the capacitor C4 and the capacitor C4 through a capacitor C8472, the capacitor C10 is connected with the 3 rd pin of the transformer L2; the 7 th pin of the transformer chip BT5 is connected with the 2 nd pin of a wire end J1, the 8 th pin of the transformer chip BT5 is connected with the 3 rd pin of the wire end J1, the 9 th pin of the transformer chip BT5 is connected with the 4 th pin of the wire end J1, the 10 th pin of the transformer chip BT5 is connected with the 5 th pin of the wire end J1, the 11 th pin of the transformer chip BT5 is connected with the 6 th pin of the wire end J1, and the 12 th pin of the transformer chip BT5 is connected with the 7 th pin of the wire end J1; the line end J6 is point-linked with the AC/DC conversion circuit 4.

Further as shown in fig. 4, the AC/DC conversion circuit 4 includes an AC/DC converter DZ1, an AC/DC converter DZ2, a voltage regulator CW, a capacitor C1-4, a capacitor C12, a capacitor C1-2, a capacitor C3, a fuse FU, a terminal J3, and a terminal J5; the 3 rd pin of the voltage stabilizer CW is connected with the positive electrode of a capacitor C1-4, the 3 rd pin of the voltage stabilizer CW is also connected with a high level, the negative stage of the capacitor C1-4 is connected with the 2 nd pin of the voltage stabilizer CW, the 2 nd pin of the voltage stabilizer is connected with the 4 th pin of an AC/DC converter DZ2, the 2 nd pin of the voltage stabilizer CW is also grounded, the 1 st pin of the voltage stabilizer CW is connected with the 2 nd pin of an AC/DC converter DZ2, the positive electrode of the capacitor C12 is connected with the 2 nd pin of an AC/DC converter DZ2, and the negative stage of the capacitor C12 is connected with the 4 th pin of an AC/DC converter DZ 2; the 1 st pin of the AC/DC converter DZ2 is connected with the 1 st pin of the terminal J5, and the 3 rd pin of the AC/DC converter DZ2 is connected with the 3 rd pin of the terminal J5; the 1 st pin of the AC/DC converter DZ1 is connected with the 5 th pin of a terminal J5, the 3 rd pin of the AC/DC converter DZ1 is connected with the 4 th pin of a terminal J5, two ends of a capacitor C1-2 are respectively connected with the 1 st pin and the 3 rd pin of the AC/DC converter DZ1, the 2 nd pin of the AC/DC converter DZ1 is connected with the 1 st pin of a terminal J3, the 2 nd pin of a terminal J3 is connected with one end of a fuse FU, the other end of the fuse FU is connected with the positive electrode of a capacitor C3, the other end of the fuse FU is also connected with a high level, the negative level of the capacitor C3 is connected with the 4 th pin of the AC/DC converter DZ1, and the negative level of the capacitor C3; terminal J5 is electrically connected to oscillator circuit 3.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A mask ear wire ultrasonic circuit is characterized by comprising a control circuit, a relay KM1, a feedback circuit, a transformer BT6, an oscillating circuit and an AC/DC conversion circuit; the control circuit is electrically connected with a coil of the relay KM1, the feedback circuit is electrically connected with a normally open contact of the relay KM1, the AC/DC conversion circuit is electrically connected with an oscillating circuit, the oscillating circuit is electrically connected with the transformer BT6, and the transformer BT6 is electrically connected with the feedback circuit; the AC/DC conversion circuit provides alternating current for the oscillating circuit, the control circuit drives the relay KM1 to start the feedback circuit at regular time, and the feedback circuit receives voltage and current signals of the oscillating circuit through the transformer BT6 to control output.

2. The mask ear line ultrasonic circuit according to claim 1, wherein the control circuit comprises a time control chip U1 with model number NE555p, a resistor R1-5, a resistor R1-4, a capacitor C1-3 and a diode D1-2, one end of the resistor R1-5 is connected with the 2 nd pin of the time control chip U1, the other end of the resistor R1-5 is connected with high level, one end of the resistor R1-4 is connected with the 2 nd pin of the time control chip U1, the other end of the resistor R1-4 is connected with the 1 st coil end of the relay KM1, one end of the capacitor C1-3 is connected with the 2 nd pin of the time control chip U1, the other end of the capacitor C1-3 is connected with the 1 st coil end of the relay KM1, the cathode of the diode D1-2 is connected with the 3 rd pin of the time control chip U1, the anode of the diode D1-2 is connected with the 1 st coil end of the relay KM1, and the 2 nd pin of the time control chip U1 is connected with the 2 nd coil end of the relay.

3. The mask ear line ultrasonic circuit according to claim 1, wherein the feedback circuit comprises a resistor R2, a resistor R3, a resistor R4, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a diode D5, a diode D12, a diode D8, a diode D9, a diode D11, a capacitor C1, a capacitor C7, a capacitor C6, a capacitor C4, a capacitor C2, a MOS transistor Q1, a MOS transistor Q2 and a MOS transistor Q3; one end of the resistor R2 is connected to the 1 st normally-open contact of the relay KM1, one end of the resistor R2 is further connected to the anode of the diode D5, the other end of the resistor R2 is connected to one end of the resistor R3, the other end of the resistor R2 is further connected to the first pin of the MOS transistor Q1, the other end of the resistor R3 is connected to the capacitor C4, the other end of the resistor R4 is further grounded, the cathode of the diode is connected to the 2 nd pin of the MOS transistor Q4, the cathode of the diode Q4 is connected to the 2 nd pin of the MOS transistor Q4, the 3 rd pin of the MOS transistor Q4 is connected to the resistor R4, the MOS transistor Q4 is connected to the anode of the diode D4 and the 2 nd pin of the MOS transistor Q4 through the resistor R4, the cathode of the diode D4 is connected to the anode of the diode D4 and the cathode of the diode Q4 and the diode D4 is connected to the anode of the diode D4 through the resistor R4 and the diode D4 and the cathode of the diode Q4, the anode of the diode D9 is grounded, the 1 st pin of the MOS transistor Q2 is connected with the 2 nd pin of the transformer BT6, and the 1 st pin of the MOS transistor Q3 is connected with the 5 th pin of the transformer BT 6; a pin 2 of the MOS transistor Q2 is connected to one end of a resistor R4, the other end of the resistor R4 is connected to a pin 6 of the transformer BT6, the other end of the resistor R4 is also connected to one end of a resistor R11, the other end of the resistor R11 is connected to a cathode of a diode D11, an anode of the diode D11 is connected to a pin 2 of the MOS transistor Q3, and a pin 2 of the MOS transistor Q2 is also connected to the pin 2; one end of a capacitor C2 is connected, the other end of a capacitor C2 is connected with the anode of a diode D12, the cathode of a diode D12 is connected with one end of a resistor R8, the other end of a resistor R8 is connected with the 3 rd pin of a transformer BT6, one end of a resistor R7 and one end of a capacitor C6, the other end of a capacitor C6 is connected with the anode of a diode D12, the other end of a capacitor C6 is grounded, the other end of a resistor R7 is connected with the 2 nd pin of a MOS tube Q3, the other end of a resistor R7 is also connected with one end of a capacitor C1, the other end of the capacitor C1 is connected with the 6 th pin of a transformer BT6, one end of a capacitor C7 is connected with the 2 nd pin of a MOS tube Q.

4. The mask ear wire ultrasonic circuit according to claim 1, wherein the oscillator circuit comprises a transformer chip BT5, a terminal J1, an inductor BT4, an inductor J4, a transformer L2, a terminal J6, a capacitor C8, a capacitor C9A, a capacitor C9B, a capacitor C9C, a capacitor C10, a capacitor C11 and a resistor R5; two ends of a resistor R5 are respectively connected with a 1 st pin and a 7 th pin of a transformer BT6, a 1 st pin of the transformer BT6 is connected with a 3 rd pin and a 4 th pin of a terminal J6, the 1 st pin of the transformer BT6 is also connected with a capacitor C11, the 1 st pin of the transformer BT6 is connected with a 3 rd pin of a transformer L2 through a capacitor C11, the 4 th pin of the transformer L2 is connected with a high level, the 2 nd pin of the transformer L2 is grounded, the 1 st pin of the transformer L2 is connected with a 2 nd pin of an inductor BT4, the 7 th pin of the inductor J4 is connected with a 7 BT T pin of a terminal J4, the 1 st pin of the terminal J4 is connected with a 1 st pin of a terminal J4 in series, the 1 st pin of the terminal J4 is also connected with a capacitor C9 4, a capacitor C9 4 and a capacitor C9 4, the 7 st pin of the inductor BT4 is connected with the capacitor C4 and the capacitor C4 through a capacitor C8472, the capacitor C10 is connected with the 3 rd pin of the transformer L2; the 7 th pin of the transformer chip BT5 is connected with the 2 nd pin of a wire end J1, the 8 th pin of the transformer chip BT5 is connected with the 3 rd pin of the wire end J1, the 9 th pin of the transformer chip BT5 is connected with the 4 th pin of the wire end J1, the 10 th pin of the transformer chip BT5 is connected with the 5 th pin of the wire end J1, the 11 th pin of the transformer chip BT5 is connected with the 6 th pin of the wire end J1, and the 12 th pin of the transformer chip BT5 is connected with the 7 th pin of the wire end J1; the line end J6 is point-linked with the AC/DC conversion circuit.

5. The mask earline ultrasonic circuit of claim 1, wherein the AC/DC conversion circuit comprises an AC/DC converter DZ1, an AC/DC converter DZ2, a voltage regulator CW, a capacitor C1-4, a capacitor C12, a capacitor C1-2, a capacitor C3, a fuse FU, a line terminal J3, and a line terminal J5; the 3 rd pin of the voltage stabilizer CW is connected with the positive electrode of a capacitor C1-4, the 3 rd pin of the voltage stabilizer CW is also connected with a high level, the negative stage of the capacitor C1-4 is connected with the 2 nd pin of the voltage stabilizer CW, the 2 nd pin of the voltage stabilizer is connected with the 4 th pin of an AC/DC converter DZ2, the 2 nd pin of the voltage stabilizer CW is also grounded, the 1 st pin of the voltage stabilizer CW is connected with the 2 nd pin of an AC/DC converter DZ2, the positive electrode of the capacitor C12 is connected with the 2 nd pin of an AC/DC converter DZ2, and the negative stage of the capacitor C12 is connected with the 4 th pin of an AC/DC converter DZ 2; the 1 st pin of the AC/DC converter DZ2 is connected with the 1 st pin of the terminal J5, and the 3 rd pin of the AC/DC converter DZ2 is connected with the 3 rd pin of the terminal J5; the 1 st pin of the AC/DC converter DZ1 is connected with the 5 th pin of a terminal J5, the 3 rd pin of the AC/DC converter DZ1 is connected with the 4 th pin of a terminal J5, two ends of a capacitor C1-2 are respectively connected with the 1 st pin and the 3 rd pin of the AC/DC converter DZ1, the 2 nd pin of the AC/DC converter DZ1 is connected with the 1 st pin of a terminal J3, the 2 nd pin of a terminal J3 is connected with one end of a fuse FU, the other end of the fuse FU is connected with the positive electrode of a capacitor C3, the other end of the fuse FU is also connected with a high level, the negative level of the capacitor C3 is connected with the 4 th pin of the AC/DC converter DZ1, and the negative level of the capacitor C3; terminal J5 is electrically connected to the oscillator circuit.