Automatic liquid feeding circuit structure applied to weld bead cleaning machine

Abstract

The utility model relates to the field of welding bead cleaning machines, in particular to an automatic liquid feeding circuit structure applied to a welding bead cleaning machine, which is characterized by comprising a signal input anti-interference circuit, a primary amplification feedback circuit, a first resistor, a secondary amplification circuit, a second resistor, a signal trigger relay circuit and a power supply voltage stabilizing circuit, the signal input anti-interference circuit, the primary amplification feedback circuit, the first resistor, the secondary amplification circuit, the second resistor and the signal trigger relay circuit are sequentially connected in series, and the secondary amplification circuit and the signal trigger relay circuit are electrically connected with the power supply voltage stabilizing circuit. The welding bead cleaning device has very high anti-interference performance and stability, so that the water pump can continuously and stably output cleaning liquid with large impact force, the cleaning quality of a welding bead can be improved, and the welding bead cleaning device has very high reliability and applicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of welding bead cleaning machine, especially an automatic liquid feeding circuit structure applied to the welding bead cleaning machine. BACKGROUND

[0002] The patent application publication with the patent application publication number CN114566940A (which is a patent application submitted by the applicant of the present application) discloses a technical solution named "a welding bead cleaning machine protection circuit". In the technical solution, a water pump circuit is used to control the water pump to provide a water source for washing the welding bead. Since there are usually large pieces of slag on the welding bead, when cleaning the welding bead, the water pump needs to be able to stably output a large impact cleaning liquid. Although the water pump circuit in the above technical solution can meet the demand of the water pump to deliver the cleaning liquid, the water pump circuit used is a relatively conventional one, and the anti-interference performance and stability of such a water pump circuit are limited, which can easily lead to the water pump being unable to continuously and stably output a large impact cleaning liquid, thereby affecting the cleaning quality of the welding bead. Therefore, it is necessary to design an automatic liquid feeding circuit structure applied to the welding bead cleaning machine to solve the above technical problems. SUMMARY

[0003] The utility model aims at solving the above problems and deficiencies, and provides an automatic liquid feeding circuit structure applied to the welding bead cleaning machine. The automatic liquid feeding circuit structure has very high anti-interference performance and stability, which can help the water pump to continuously and stably output a large impact cleaning liquid, thereby improving the cleaning quality of the welding bead, and has very high reliability and applicability.

[0004] The technical solution of the utility model is implemented as follows:

[0005] An automatic liquid feeding circuit structure applied to the welding bead cleaning machine, characterized in that it comprises a signal input anti-interference circuit, a first-stage amplification feedback circuit, a first resistor, a second-stage amplification circuit, a second resistor, a signal trigger relay circuit, and a power supply voltage stabilizing circuit. The signal input anti-interference circuit, the first-stage amplification feedback circuit, the first resistor, the second-stage amplification circuit, and the signal trigger relay circuit are connected in series. The second-stage amplification circuit and the signal trigger relay circuit are electrically connected to the power supply voltage stabilizing circuit.

[0006] Preferably, the signal input anti-interference circuit comprises a first capacitor, a third resistor, a fourth resistor, and a fifth resistor. The first capacitor and the third resistor are connected in parallel. One end of the fourth resistor and one end of the fifth resistor are electrically connected to the two ends of the third resistor, respectively. The other end of the fourth resistor and the other end of the fifth resistor are electrically connected to the first-stage amplification feedback circuit.

[0007] Preferably, the primary amplification feedback circuit comprises a first operational amplifier, a sixth resistor and a second capacitor, which are connected in parallel between the signal input anti-interference circuit and the first resistor.

[0008] Preferably, the secondary amplification circuit comprises a second operational amplifier, a seventh resistor, an eighth resistor and a third capacitor, the second operational amplifier is connected in series between the first resistor and the second resistor through one of the input ends and the output end thereof, the seventh resistor and the third capacitor are connected in parallel, and the two ends of the seventh resistor are respectively connected with the other input end of the second operational amplifier and the signal trigger relay circuit, and the eighth resistor is connected in series between the power supply voltage stabilizing circuit and the other input end of the second operational amplifier.

[0009] Preferably, the power supply voltage stabilizing circuit comprises a voltage stabilizing chip, a first polarity capacitor and a second polarity capacitor, the positive ends of the first polarity capacitor and the second polarity capacitor are respectively connected with the input end and the output end of the voltage stabilizing chip, the secondary amplification circuit and the signal trigger relay circuit are connected with the output end of the voltage stabilizing chip, and the ground end of the voltage stabilizing chip, the negative end of the first polarity capacitor and the negative end of the second polarity capacitor are grounded.

[0010] The automatic liquid feeding circuit structure has very high anti-interference performance and stability, so that the water pump can continuously and stably output the cleaning liquid with large impact force, thereby improving the cleaning quality of the weld, and has very high reliability and applicability. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 The utility model discloses a structure schematic diagram. DETAILED DESCRIPTION

[0012] As Figure 1As shown, the utility model discloses a kind of automatic liquid feeding circuit structure applied to welding bead cleaning machine, including signal input anti-interference circuit 1, first-stage amplification feedback circuit 2, first resistance 3, second-stage amplification circuit 4, second resistance 5, signal trigger relay circuit 6, power supply voltage stabilizing circuit 7, signal input anti-interference circuit 1, first-stage amplification feedback circuit 2, first resistance 3, second-stage amplification circuit 4, second resistance 5, signal trigger relay circuit 6 are connected in series in sequence, second-stage amplification circuit 4 and signal trigger relay circuit 6 are electrically connected with power supply voltage stabilizing circuit 7.

[0013] In the automatic liquid feeding circuit structure, including signal input anti-interference circuit 1, first-stage amplification feedback circuit 2, first resistance 3, second-stage amplification circuit 4, second resistance 5, signal trigger relay circuit 6, power supply voltage stabilizing circuit 7, and signal input anti-interference circuit 1, first-stage amplification feedback circuit 2, first resistance 3, second-stage amplification circuit 4, second resistance 5, signal trigger relay circuit 6 are connected in series in sequence, and second-stage amplification circuit 4 and signal trigger relay circuit 6 are electrically connected with power supply voltage stabilizing circuit 7. Such automatic liquid feeding circuit structure can have very high anti-interference performance and stability, so that water pump can be continuously, stably outputted with large impact force cleaning liquid, and then it is favorable to improve the cleaning quality of welding bead, and it can have very high reliability and applicability.

[0014] As shown in Figure 1 The signal input anti-interference circuit 1 includes first capacitor 11, third resistance 12, fourth resistance 13, fifth resistance 14, the first capacitor 11 is connected with third resistance 12 in parallel, the fourth resistance 13 and the fifth resistance 14 one end are electrically connected with the both ends of third resistance 12 respectively, the fourth resistance 13 and the fifth resistance 14 the other end are electrically connected with first-stage amplification feedback circuit 2. Such signal input anti-interference circuit 1 not only can have simple structure, but also can have very good anti-interference performance, so that the automatic liquid feeding circuit structure can have high reliability and applicability.

[0015] As shown in Figure 1 The negative terminal of the first capacitor 11 is connected with the first ground wire 15, which can make the automatic liquid feeding circuit structure have better use performance.

[0016] As shown in Figure 1 The first-stage amplification feedback circuit 2 includes first operational amplifier 21, sixth resistance 22, second capacitor 23, and the first operational amplifier 21, sixth resistance 22 and second capacitor 23 are connected in parallel between signal input anti-interference circuit 1 and first resistance 3. Such first-stage amplification feedback circuit 2 is very simple and reliable, which not only can facilitate manufacturing, but also can improve the anti-interference ability of automatic liquid feeding circuit structure.

[0017] AsFigure 1 As shown, the secondary amplifier circuit 4 includes a second operational amplifier 41, a seventh resistor 42, an eighth resistor 43, and a third capacitor 44. The second operational amplifier 41 is connected in series between the first resistor 3 and the second resistor 5 through one of its input terminals and its output terminal. The seventh resistor 42 is connected in parallel with the third capacitor 44, and the two ends of the seventh resistor 42 are electrically connected to the other input terminal of the second operational amplifier 41 and the signal trigger relay circuit 6, respectively. The eighth resistor 43 is connected in series between the power supply regulator circuit 7 and the other input terminal of the second operational amplifier 41. This design can stably meet the amplification requirements, thereby ensuring that the automatic liquid delivery circuit structure has very high reliability.

[0018] In the actual manufacturing process, the first operational amplifier 21 and the second operational amplifier 41 can be one of the operational amplifier chips of model LM158, LM258 and LM358, so as to meet the needs of actual manufacturing and use.

[0019] like Figure 1 As shown, the power supply voltage regulator circuit 7 includes a voltage regulator chip 71, a first polarity capacitor 72, and a second polarity capacitor 73. The positive terminals of the first polarity capacitor 72 and the second polarity capacitor 73 are electrically connected to the input and output terminals of the voltage regulator chip 71, respectively. The secondary amplifier circuit 4 and the signal trigger relay circuit 6 are both electrically connected to the output terminal of the voltage regulator chip 71. The ground terminal of the voltage regulator chip 71, the negative terminal of the first polarity capacitor 72, and the negative terminal of the second polarity capacitor 73 are all grounded. This power supply voltage regulator circuit 7 is very simple and reliable. It is not only easy to manufacture, but also provides a very reliable voltage regulation effect, thereby helping to further improve the reliability and applicability of the automatic liquid delivery circuit structure.

[0020] In the actual manufacturing process, the voltage regulator chip 71 adopts a model 7812 voltage regulator chip, and the signal trigger relay circuit 6 adopts... Figure 1 The circuit structure shown enables the signal-triggered relay circuit 6 to have very high reliability and stability; the overall circuit connection structure of this automatic liquid delivery circuit can adopt... Figure 1 The circuit structure shown meets the requirements of actual manufacturing and use.

[0021] The above embodiments are preferred embodiments of this utility model. All structures similar to this utility model and equivalent changes thereof should fall within the protection scope of this utility model.

Claims

1. An automatic liquid delivery circuit structure applied in a weld bead cleaning machine, characterized in that: The utility model provides an anti -interference circuit of signal input, one -level amplification feedback circuit (2), first resistance (3), secondary amplification circuit (4), second resistance (5), signal trigger relay circuit (6), power supply voltage stabilizing circuit (7), the anti -interference circuit of signal input (1), one -level amplification feedback circuit (2), first resistance (3), secondary amplification circuit (4), second resistance (5), signal trigger relay circuit (6) are connected in series in proper order, and the secondary amplification circuit (4) and signal trigger relay circuit (6) are all with power supply voltage stabilizing circuit (7) electric connection.

2. The automatic liquid feeding circuit structure applied to the welding bead cleaning machine according to claim 1, characterized in that: The anti -interference circuit of signal input (1) includes first capacitor (11), third resistance (12), fourth resistance (13), fifth resistance (14), first capacitor (11) is provided with third resistance (12) parallelly, fourth resistance (13) and one end of fifth resistance (14) are electrically connected with both ends of third resistance (12) respectively, and the other end of fourth resistance (13) and fifth resistance (14) are electrically connected with one -level amplification feedback circuit (2) respectively.

3. The automatic liquid feeding circuit structure applied to the welding bead cleaning machine according to claim 1, characterized in that: The one -level amplification feedback circuit (2) includes first operational amplifier (21), sixth resistance (22), second capacitor (23), and the first operational amplifier (21), sixth resistance (22) and second capacitor (23) are connected in parallel between the anti -interference circuit of signal input (1) and first resistance (3).

4. The automatic liquid feeding circuit structure applied to the welding bead cleaning machine according to claim 1, characterized in that: The secondary amplification circuit (4) includes second operational amplifier (41), seventh resistance (42), eighth resistance (43) and third capacitor (44), the second operational amplifier (41) is connected in series between first resistance (3) and second resistance (5) through one of the input ends on it and the output end on it, the seventh resistance (42) is connected with the third capacitor (44) in parallel, and the two ends of seventh resistance (42) are electrically connected with the other input end of second operational amplifier (41) and signal trigger relay circuit (6) respectively, and the eighth resistance (43) is connected in series between power supply voltage stabilizing circuit (7) and the other input end of second operational amplifier (41).

5. The automatic liquid feeding circuit structure applied to the welding bead cleaning machine according to claim 1, characterized in that: The power supply voltage stabilizing circuit (7) includes voltage stabilizing chip (71), first polarity capacitor (72) and second polarity capacitor (73), the positive terminal of first polarity capacitor (72) and second polarity capacitor (73) is electrically connected with the input end and output end of voltage stabilizing chip (71) respectively, the secondary amplification circuit (4) and signal trigger relay circuit (6) are electrically connected with the output end of voltage stabilizing chip (71), and the grounding end of voltage stabilizing chip (71), the negative terminal of first polarity capacitor (72) and the negative terminal of second polarity capacitor (73) are grounded.

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